Damper and automotive seat with damper

FIELD: machine building.

SUBSTANCE: damper comprises reservoir to accommodate viscous fluid. Web divides reservoir inner into two chambers. Opening made in web allows communication between said chambers via variable-cross-section adjustable duct. Said opening is provided with viscous fluid restrictor. The latter comprises adjustable duct shaping element with through hole arranged to displace linearly. Annular elastic element is arranged between shaping element face and web side surface. Seat comprises backrest, headrest, actuator and retainer. Unlocking appliance incorporates mechanism for converting load in rotation and mechanism incorporating said damper.

EFFECT: damper stiffness adjusted in response to impact force, adjustable headrest.

25 cl, 23 dwg

 

The technical field to which the invention relates.

The present invention relates to a shock absorber to cushion the blow, more precisely to the absorber applicable for use in an automotive seat having a headrest, which provides support for a head of a passenger, moving forward, when, for example, a collision of the vehicle passenger backwards under the action of inertia after the rear impact, as well as to the car seat with a cushion.

The level of technology

Patent document 1: JP-A-10-181403

Patent document 2: JP-A-10-119619

Patent document 3: JP-A-11-268566

Patent document 4: JP-A-2003-81044

Patent document 5: JP-A-2003-176844

Patent document 6: JP-A-2005-225334

Patent document 7: JP-A-2006-82772

Patent document 8: JP-A-2006-88875

In the invention proposed car seat headrest which are able to move forward, to hold the head of the passenger in the moment, for example, a collision.

Disclosure of inventions

Tasks solved in the invention

Absorb shock absorbers used in car seats, in the event of a collision at low speed should gently to absorb the shock caused by the collision and to maintain the head in such a way as not to transmit shock, and in the event of a collision at high speed they absorb the blow with a stiffness the corresponding force of impact during a collision, i.e. absorb impact in a collision, becoming hard, to securely support the head.

The present invention was created taking into account the above characteristics, and it is based on the task of creating a shock absorber, able to gently absorb shock when he is weak, and can become hard and forced to keep experiencing the impact object, for example the head, when the strike is strong.

Another objective of the invention is to provide a shock absorber of the vehicle seat, which is able to force the headrest in the direction of motion of the vehicle only, for example, at the moment of collision by the corresponding detection point, for example, collision and no collision and which can be compactly installed in the back seat, etc.

Means of solving problems

Proposed in the present invention, the shock absorber has a reservoir in the inner space of which is a viscous fluid; at least one of the inhibiting wall in the inner space of the tank for keeping the flow of viscous fluid medium in the direction around the axis of the tank; a partition for blocking the internal space of the tank with a viscous fluid medium, the flow of which is delaying retention wall, at least two cameras in the direction around the axis, with the baffle installed in the internal space of the tank can be rotated relative to the vessel in the direction around the axis; at least one connecting hole made in the partition and enabling both cameras in the inner space of the tank to communicate with each other by means of an adjustable channel with variable cross sectional area; and a flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the direction around the axis in the chamber on the other side in the direction around the axis through the connecting hole when the internal pressure of the viscous fluid medium in the chamber on one direction around the axis exceeds a predetermined value under the condition of rotation of the partition in one direction around the axis relative to the reservoir, and the flow limiter has a formative element of the controlled channel having a through hole, the end of which, facing in one direction around the axis of the shaping element adjustable channel opens into the chamber on one side in the direction around the axis, forming an element of the controlled channel movably mounted on the partition in such a way that its end face facing in the opposite direction in the Rog axis shaping element adjustable channel is opposite the side surface, passing in one direction around the axis of the septum, resulting in a regulated channel, one side of which is communicated with a through hole, and the other side with a connecting hole communicating with a lateral surface, passing in one direction around the axis of the septum; and an annular elastic element surrounding the adjustable channel and located between the end face facing in the other direction around the axis of the shaping element adjustable channel, and a side surface, passing in one direction around the axis of the septum, thereby to inhibit rotation of the partition in direction around the axis relative to the tank.

In the case of giving a partition of rotation relative to the reservoir with low speed, not exceeding the preset value, the partition is rotated relative to the tank in one direction around the axis at a low speed, not exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the direction around the axis of the tank does not exceed a specified amount. Due to this, the annular elastic element located between the end face facing in the other direction around the axis of the shaping element is Aholibamah channel, and a side surface, passing in one direction around the axis of the partitions, does not undergo large elastic deformation, and there is a high cross-sectional area of the controlled channel. Thus, the viscous fluid medium in the chamber on one side in the direction around the axis without substantial resistance to flow into the chamber on the other side through the through hole, adjustable channel and the connecting hole. Thus is set to a relatively small value of end cushioning efforts, i.e. reaction force to make the rotation, on the basis of hydraulic resistance in the flow of a viscous fluid through a through hole, adjustable channel and the connecting hole. On the other hand, in the case of giving a partition of rotation with a high velocity relative to the tank exceeding a preset value, the partition tends to rotate relative to the tank in one direction around the axis with high speed, exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the direction around the axis of the tank exceeds a specified amount. Thus, there is an elastic deformation of the annular elastic element located between the end face facing in the other direction around the axis of formoobrazuyuschimi element adjustable channel and a side surface, passing in one direction around the axis of the septum. Therefore, decreases the distance in the direction around the axis between the end face facing in the other direction around the axis of the shaping element adjustable channel, and a side surface, passing in one direction around the axis of the septum, resulting in a reduced cross-sectional area of the controlled channel. Thus, there is strong resistance in the flow of viscous fluid medium in the chamber on one side in the direction around the axis of the tank into the chamber on the other side in the direction around the axis of the tank through the through hole, adjustable channel and the connecting hole. As a result, the final damping force, i.e. the counterforce giving rotation, takes the value, which is determined by the compression resistance of the viscous fluid medium in the chamber on one side in the direction around the axis, and hydraulic resistance of flow of a viscous fluid through an adjustable channel, the cross-sectional area of which is reduced. Thus, in the case of imparting rotation to low speed, not exceeding a specified amount at which the blow is weak, the impact is absorbed gently, then as in the case of imparting rotation with high speed exceeding C is a given value, when the shock is strong, the shock absorber becomes hard to force to keep experiencing the impact object. Consequently, it is possible to satisfactorily inhibit the rotation direction around the axis of the septum relative to the tank.

In one of the preferred embodiments of the absorber mass element adjustable channel has a plate section with a through hole, a stem, one end of which is made in one piece on the plate section and inserted into the connection hole, and the hook, made in one piece on the other end of the leg to prevent the leg out from the connecting hole. In addition, the partition has a truncated conical surface on the side going in one direction around the axis, forming an element of the controlled channel has a truncated conical surface complementary to the truncated conical surface of the walls and opposite the truncated conical surface, and an adjustable channel has a truncated conical channel formed by the truncated conical surface of the septum and the truncated conical surface of the shaping element of the controlled channel.

Proposed in the present invention, the shock absorber has a reservoir in the inner space of which is located the viscous fluid; at least one of the inhibiting wall in the inner space of the tank for keeping the flow of viscous fluid medium in the direction around the axis of the tank; a partition for blocking the internal space of the tank with a viscous fluid medium, the flow of which delaying retention wall, at least two cameras in the direction around the axis, with the baffle installed in the internal space of the tank can be rotated relative to the vessel in the direction around the axis; at least one connecting hole made in the partition and enabling both cameras in the inner space of the tank to communicate with each other by means of an adjustable channel with variable cross sectional area; and the flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the direction around the axis in the chamber on the other side in the direction around the axis through the connecting hole when the camera is on one side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation of the partition in one direction around the axis relative to the reservoir, and the flow limiter has a formative element of the controlled channel, which is movably installed on the negotiations is the APC and at the end of which, going in the other direction in the direction about the axis and facing the side surface, passing in one direction around the axis of the partitions, connecting groove, one end of which opens into the chamber on one side in the direction around the axis, and the other end goes into the connection hole; and an annular elastic element, which is held in the radial direction between the one end and the other end of the connecting groove is installed on the side surface, passing in one direction around the axis of the septum, resulting by contact pressure of the contact and without contact of the annular elastic element and the end face facing in the other direction around the axis of the shaping element adjustable channel having a connecting groove formed adjustable channel for mutual communication of the two chambers of the tank through the connecting holes, allowing the camera to one side in the direction about the axis to communicate with the connecting hole, in order to brake the rotation direction around the axis of the septum relative to the tank.

In the case of imparting rotation to the partition relative to the reservoir with low speed, not exceeding the preset value, the partition is rotated relative to the tank in one direction in the example is the pressure axis at a low speed, do not exceed a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the direction around the axis of the tank does not exceed a specified amount. Consequently, since the annular elastic element mounted on the side surface, passing in one direction around the axis of the partitions, do not enter into strong pressure contact and does not undergo large elastic deformation on the side of the end face facing in the other direction around the axis of the shaping element adjustable channel, there is a high cross-sectional area of the controlled channel. Thus, the viscous fluid medium in the chamber on one side in the direction around the axis without substantial resistance to flow into the chamber on the other side around the axis through an adjustable channel and the connecting hole. As a result, relative to a small finite value of cushioning efforts, i.e. reaction force to make the rotation, on the basis of hydraulic resistance in the flow of viscous fluid through an adjustable channel with a large cross-sectional area and the connecting hole. On the other hand, in the case of giving a partition of rotation relative to the tank with a high speed exceeding a preset value, the partition tends to move the I relative to the tank in one direction around an axis at high speed, in excess of a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the direction around the axis of the tank exceeds a specified amount. Consequently, since the annular elastic element located between the end face facing in the other direction around the axis of the shaping element adjustable channel, and a side surface, passing in one direction around the axis of the septum, is put into contact with an end face facing in the other direction around the axis of the shaping element adjustable channel, adjustable channel is only connecting groove, i.e. the cross-sectional area of the adjustable channel decreases. In addition, since the end face facing in the other direction around the axis of the shaping element adjustable channel, optionally compressed after contact and pressed against the annular elastic element is substantially elastic deformation of the annular elastic element. Due to the fact that under the action of the large elastic deformation of the annular elastic element is pressed into the connecting groove, the cross-sectional area of the adjustable channel becomes even less. Thus, there is strong resistance in the flow of viscous fluid medium in the chamber on one side in the direction of the tion about the axis of the tank into the chamber on the other side in the direction around the axis of the tank through the through hole, adjustable channel and the connecting hole. As a result, the final damping force, i.e. the counterforce giving rotation, takes the value, which is determined by the compression resistance of the viscous fluid medium in the chamber on one side in the direction around the axis, and hydraulic resistance of flow of a viscous fluid through an adjustable channel, the cross-sectional area of which is reduced. Thus, in the case of imparting rotation to low speed, not exceeding a specified amount at which the blow is weak, the impact is absorbed gently, then as in the case of imparting rotation with high speed, exceeding a specified amount at which the blow is strong, the shock absorber becomes hard to force to keep experiencing the impact object. Consequently, it is possible to satisfactorily inhibit the rotation direction around the axis of the septum relative to the tank.

In another preferred embodiment, the absorber mass element adjustable channel has a plate section with a connecting groove, a stem, one end of which is made in one piece on the plate section and inserted into the connection hole, and the hook, made in one piece on the other end of the leg to prevent the leg out from the connecting hole. Chrome is also when the camera is on the other side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation of the partitions in the other direction in the direction about the axis relative to the tank, the end face facing in the other direction around the axis of the shaping element adjustable channel moves away from the annular elastic element. In addition, when the camera is on one side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation of the partition in one direction around the axis relative to the tank, an annular elastic element is elastically deformed, filling the connecting groove and reducing the cross-sectional area of the controlled channel.

Described damper is able to inhibit the rotation direction around the axis of the septum relative to the tank, can optionally have an elastic means of the elastic force of the displacement of the partitions in the other direction in the direction about the axis relative to the tank.

Another proposed in the present invention, the shock absorber has a reservoir in the inner space of which is a viscous fluid; a partition in the internal space of the tank, can linearly move in on the evom direction relative to the reservoir and across the inner space of the reservoir for a viscous fluid medium by at least two cameras in the axial direction; at least one connecting hole made in the partition and enabling both cameras in the inner space of the tank to communicate with each other by means of an adjustable channel with variable cross sectional area; a flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the axial direction into the chamber on the other side in the axial direction through the connecting hole when the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction exceeds the preset value, assuming a linear movement of the partition in one axial direction relative to the reservoir, and the flow limiter has a formative element of the adjustable channel with a through hole, one end of which, facing in one axial direction of the shaping element adjustable channel opens into the chamber on one side in the axial direction, forming an element of the controlled channel movably mounted on the partition in such a way that its end face facing the other side in the axial direction of the shaping element adjustable channel that is opposite the side surface, passing to one side in the axial direction of the partition, resulting in a regulated channel, one side is otorongo is communicated with a through hole, and the other side with a connecting hole communicating with a lateral surface, passing to one side in the axial direction of the partition wall; and an annular elastic element surrounding the adjustable channel and located between the end face, facing the other side in the axial direction of the shaping element adjustable channel, and a side surface, passing to one side in the axial direction of the partition, thus to inhibit the linear displacement of the septum in the axial direction relative to the reservoir.

In case, give the partition a linear motion relative to the reservoir with low speed, not exceeding the preset value, the partition moves linearly relative to the tank at one side in the axial direction at a low speed, not exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction of the tank does not exceed a specified amount. Due to this, the annular elastic element located between the end face, facing the other side in the axial direction of the shaping element adjustable channel, and a side surface, passing in one axial direction of the partition, does not undergo large elastic deformation, and there is a high cross-sectional area of the regulated is the anal. Thus, the viscous fluid medium in the chamber on one side in the axial direction without significant resistance to flow into the chamber on the other side in the axial direction through the through hole, adjustable channel and the connecting hole. As a result, relative to a small finite value of cushioning efforts, i.e. reaction force to make a linear movement, based on the hydraulic resistance in the flow of a viscous fluid through a through hole, adjustable channel and the connecting hole. On the other hand, in the case of giving a partition of linear movement relative to the tank with a high speed exceeding a preset value, the partition tends linearly move relative to the tank at one side in the axial direction with high speed, exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction of the tank exceeds a specified amount. As a result, is the elastic deformation of the annular elastic element located between the end face, facing the other side in the axial direction of the shaping element adjustable channel, and a side surface, passing to one side in the axial direction of the partition. Consequently, the reduced distance is in the axial direction between the end face, facing the other side in the axial direction of the shaping element adjustable channel, and a side surface, passing to one side in the axial direction of the partition, resulting in decreased cross-sectional area of the controlled channel. Thus, there is strong resistance in the flow of viscous fluid medium in the chamber on one side in the axial direction of the reservoir into the chamber on the other side in the axial direction of the tank through the through hole, adjustable channel and the connecting hole. As a result, the final damping force, i.e. the reaction force to make linear motion, takes a value that is caused by the compression resistance of the viscous fluid medium in the chamber in one axial direction and the hydraulic resistance of flow of a viscous fluid through an adjustable channel, the cross-sectional area of which is reduced. Thus, in the case of imparting linear motion with low speed, not exceeding a specified amount at which the blow is weak, the impact is absorbed gently, then as in the case of imparting linear motion with high speed, exceeding a specified amount at which the blow is strong, the shock absorber becomes hard to force to keep experiencing the impact object. Consequently, it is possible UD is vitoriano to inhibit rotation in the axial direction of the partition relative to the tank.

In yet another preferred embodiment of the described shock absorber mass element adjustable channel has a plate section with a through hole, a stem, one end of which is made in one piece on the plate section and inserted into the connection hole, and the hook, made in one piece on the other end of the leg to prevent the leg out from the connecting hole. In addition, the partition has a truncated conical surface on the side surface, passing to one side in the axial direction, forming an element of the controlled channel has a truncated conical surface complementary to the truncated conical surface of the walls and opposite the truncated conical surface, and an adjustable channel has a truncated conical channel formed by the truncated conical surface of the septum and the truncated conical surface of the shaping element of the controlled channel.

Additional proposed in the present invention, the shock absorber has a reservoir in the inner space of which is a viscous fluid; a partition in the internal space of the tank, can linearly move in the axial direction relative to the reservoir for blocking the internal space of the reservoir for a viscous tech is whose environment by at least two cameras in the axial direction; at least one connecting hole made in the partition and enabling both cameras in the inner space of the tank to communicate with each other by means of an adjustable channel with variable cross sectional area; a flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the axial direction into the chamber on the other side in the axial direction through the connecting hole when the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction exceeds the preset value, assuming a linear movement of the partition in one axial direction relative to the reservoir, and the flow limiter has a formative element of the controlled channel, which is movably installed on the wall, and on its end face facing the other side in the axial direction of the side surface, passing to one side in the axial direction of the partition, connecting groove, one end of which opens into the chamber on one side in the axial direction, and the other end goes into the connection hole; and an annular elastic element, which is held in the radial direction between the one end and the other end of the connecting groove is installed on the side surface, passing to one side in the axial direction the AI partitions, in the result, by contact, the clamping contact and without contact of the annular elastic element with an end face facing in the other direction in the axial direction of the shaping element adjustable channel with connecting groove is formed adjustable channel for mutual communication of the two chambers of the tank through the connecting holes, allowing the camera to one side in the axial direction to communicate with the connecting hole so as to inhibit rotation in the axial direction of the partition relative to the tank.

In case, give the partition a linear motion relative to the reservoir with low speed, not exceeding the preset value, the partition moves linearly relative to the tank at one side in the axial direction at a low speed, not exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction of the tank does not exceed a specified amount. Thus, the annular elastic element mounted on the side surface, passing to one side in the axial direction of the partition, does not undergo large elastic deformation on the side of the end face, facing the other side in the axial direction of the shaping element adjustable channel, which is a large square Popper is knogo section of the controlled channel. Thus, the viscous fluid medium in the chamber on one side in the axial direction without significant resistance to flow into the chamber on the other side in the axial direction through the through hole, adjustable channel and the connecting hole. As a result, relative to a small finite value of cushioning efforts, i.e. reaction force to make a linear movement, based on the hydraulic resistance in the flow of viscous fluid through an adjustable channel with a large cross-sectional area and the connecting hole. On the other hand, in the case of giving a partition of linear motion with high velocity relative to the tank exceeding a preset value, the partition tends to move relative to the tank at one side in the axial direction with high speed, exceeding a specified amount, and the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction of the tank exceeds a specified amount. Consequently, since the annular elastic element located between the end face, facing the other side in the axial direction of the shaping element adjustable channel, and a side surface, passing to one side in the axial direction of the partition, shall be put into contact with an end face that faces the thoron in the axial direction of the shaping element adjustable channel adjustable channel is only connecting groove, i.e. the cross-sectional area of the adjustable channel decreases. In addition, since the end face, facing the other side in the axial direction of the shaping element adjustable channel, optionally compressed after contact and pressed against the annular elastic element, the annular elastic element is not introduced into strong pressure contact and undergoes large elastic deformation. Due to the fact that under the action of the large elastic deformation of the annular elastic element is pressed into the connecting groove, the cross-sectional area of the adjustable channel becomes even less. Thus, there is strong resistance in the flow of viscous fluid medium in the chamber on one side in the axial direction of the reservoir into the chamber on the other side in the axial direction of the tank through an adjustable channel and the connecting hole. As a result, the final damping force, i.e. the reaction force to make linear motion, takes a value that is caused by the compression resistance of the viscous fluid medium in the chamber in one axial direction and the hydraulic resistance of flow of a viscous fluid through an adjustable channel, the cross-sectional area of which is reduced. Thus, in the case of giving the line the CSO movement at a low speed, not exceeding a specified amount at which the blow is weak, the impact is absorbed gently, then as in the case of imparting linear motion with high speed, exceeding a specified amount at which the blow is strong, the shock absorber becomes hard to force to keep experiencing the impact object. Consequently, it is possible to satisfactorily inhibit linear motion in the axial direction of the partition relative to the tank.

In one additional preferred embodiments of the absorber mass element adjustable channel has a plate section with a connecting groove, a stem, one end of which is made in one piece on the plate section and inserted into the connection hole, and the hook, made in one piece on the other end of the leg to prevent the leg out from the connecting hole. In addition, the partition has a truncated conical surface on the side going in one direction around the axis, forming an element of the controlled channel has a truncated conical surface complementary to the truncated conical surface of the walls and opposite the truncated conical surface, and an adjustable channel has a truncated conical channel formed by the truncated conical surface is ergorace and the truncated conical surface of the shaping element of the controlled channel. In addition, when the camera is on the other side in the axial direction creates an internal pressure of the viscous fluid in excess of a specified amount, subject to the linear displacement of the septum to the other side in the axial direction relative to the reservoir, the end face facing the other side in the axial direction of the shaping element adjustable channel is removed from the annular elastic element. In addition, when the camera is on one side in the axial direction creates an internal pressure of the viscous fluid in excess of a specified amount, subject to the linear displacement of the septum to one side in the axial direction relative to the reservoir, an annular elastic element is elastically deformed, filling the connecting groove and reducing the cross-sectional area of the controlled channel.

The absorber is able to inhibit linear motion in the axial direction of the partition relative to the tank, can additionally have an elastic means of the elastic force of the displacement of the partition to the other side in the axial direction relative to the reservoir.

In any of these absorbers annular elastic element is preferably formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low elastic modulus at high the temperature (annular elastic element becomes soft and high modulus at low temperature (annular elastic element becomes solid). The annular elastic element in the form of a ring with a circular cross section is exposed to a high elastic deformation at high temperature and small elastic deformation at low temperature. As a result, in combination with a synergistic effect with a viscous fluid medium, having a positive temperature characteristic from the viewpoint of fluidity, in which fluidity increases at high temperatures and decreases at low temperature, it is possible to reduce the temperature dependence of the hydraulic resistance of the viscous fluid flowing through the adjustable channel, the cross-sectional area of which is determined by the elastic deformation of the annular elastic element. Thus, it is possible to reduce the differences between, for example, on the one hand, the rigidity of the shock absorber in the direction around the axis or axial direction in the case of imparting rotation or linear movement with high speed, exceeding a specified amount when the shock becomes strong at high temperatures, and, on the other hand, the stiffness of the shock absorber in the direction around the axis or axial direction in the case of imparting rotation or linear movement with high speed, exceeding a specified amount when the shock becomes strong at low temperature. Therefore, it becomes possible to forcibly hold the experience which would strike an object with hardness, which was not significantly different at high temperature and at low temperature in the direction around the axis or axial direction. The annular elastic element according to the invention is not limited to the ring with a circular cross section of natural rubber or synthetic rubber and may be made of elastic material such as polyurethane rubber, acrylic rubber, silicone rubber, complex polyester elastomer, etc. in Addition, the annular elastic element can be a ring or similar element having a square cross-section, Y-shaped, U-shaped or X-shaped.

As the viscous fluid medium in the invention may be used silicone oil with a viscosity grade 100 to 1000 cSt, the use of which is not limited in the invention.

In addition, in the present invention proposed an automotive seat having a seat back; a headrest supported on the backrest can be moved in the direction of motion of the vehicle; coercive means of enforcing the headrest to move in the direction of motion of the vehicle; and a delay mechanism for delaying movement of the headrest in the direction of motion of the vehicle; and canceling means for canceling the retaining retarding mechanism for moving the headrest in the direction of the control movement of the vehicle, when the speed of the efforts applied to the backrest in the direction opposite to the direction of movement of the vehicle exceeds the preset value, thus abolishing the tool has a mechanism of transformation of a load in the rotation for converting a load applied to the supporting part of the backrest, the turning effort transmitting mechanism for transmitting the inhibiting mechanism of the effort applied to the backrest in a direction opposite to the direction of travel of the vehicle under the condition that the speed of movement exceeds a specified amount, while the transmitting mechanism has a shock absorber according to any one of items 1 to 15, in which one of the elements comprising the reservoir and the wall of the shock absorber is connected with the mechanism of transformation of a load in the rotation, and the other of the elements, including the tank and the wall of the shock absorber is connected with a check mechanism.

In the automobile seat according to the described features of the invention canceling means which cancels the retention delay mechanism for moving the headrest in the direction of movement of the vehicle when the speed of the efforts applied to the backrest in the direction opposite to the direction of movement of the vehicle exceeds the preset value, has a transmitting mechanism for transmitting delay mechanism at the Elijah attached to the seat back in a direction opposite to the direction of travel of the vehicle under the condition that the speed of movement exceeds a specified amount. In addition, since the transmitting mechanism has a shock in any of the above forms, you can force to move the headrest in the direction of motion of the vehicle only, for example, at the moment of collision by a corresponding recognition of the moment, for example, collision and no collision, the shock absorber, etc. may be compactly installed in the back seat, etc.

The conversion mechanism of the load in the rotation may be carrying the load plate can be rotated based on the frame of the backrest and is located in the supporting part of the seat backrest. In addition, the headrest can lean on the backrest with the possibility of rotation or linear movement in the direction of movement of the car, forcing the tool can force the headrest to rotate or linearly move in the direction of movement of the vehicle, and retarding mechanism may delay the rotation or the linear movement of the headrest in the direction of movement of the car.

Advantages of the invention

In the proposed invention the shock absorber, able to gently absorb shock when the shock is weak, and stanovits is hard and forced to keep experiencing the impact object, for example the head, when the strike is strong. In addition, the proposed car seat, equipped with a shock absorber, is able to force the headrest in the direction of motion of the vehicle only, for example, at the moment of collision by the corresponding detection point, for example, collision and no collision and which can be compactly installed in the back seat, etc.

Brief description of drawings

Figure 1 shows an explanatory view in cross-section in the direction of the arrows along the line I-I of figure 3 one of the preferred embodiments of the invention,

figure 2 shows an explanatory view in cross-section in the direction of the arrows along the line II-II of figure 3 variant implementation, shown in figure 1,

figure 3 shows an explanatory view in cross-section in the direction of the arrows along the line III-III variant implementation, shown in figure 1,

figure 4 shows an explanatory partial enlarged view of a variant of implementation, shown in figure 1,

figure 5 shows an explanatory partial image variant implementation, shown in figure 4,

figure 6(a) shows an explanatory view in the direction of the arrows along the line VIa-VIa in figure 5, and figure 6(b) shows an explanatory view in the direction of the arrows along the line VIb-VIb in Phi is .5 in both cases, a variant implementation, shown in figure 5,

7 shows the right vertical side view of the shaping element adjustable channel, shown in figure 5,

on Fig shows a diagram illustrating an implementation option, shown in figure 1,

figure 9 shows a diagram illustrating an implementation option, shown in figure 1,

figure 10 shows a diagram illustrating an implementation option, shown in figure 1,

figure 11 shows an explanatory vertical side view of one of the embodiments in which an implementation option, shown in figure 1, used in car seat,

on Fig shows an explanatory front view of a variant of implementation, shown at 11,

on Fig shows an explanatory partial diagram of another preferred variant of the invention,

on Fig shows an explanatory partial image area shown in Fig,

on Fig shows an explanatory enlarged view of a shaping element of the controlled channel, shown in Fig,

on Fig shown right vertical side view of the shaping element adjustable channel shown in Fig,

on Fig(a) shows an explanatory view in the direction of the arrows along the line XVIIa-XVIIa in Fig, and Fig(6) shows an explanatory view in the direction of the arrows along the line XVIIb-XVIIb in Fig, about what the options implementation shown in Fig,

on Fig shows a diagram illustrating an implementation option, shown in Fig,

on Fig shows a diagram illustrating an implementation option, shown in Fig,

on Fig shows an explanatory diagram of another preferred variant of the invention,

on Fig shows a diagram illustrating an implementation option, shown in Fig,

on Fig shows an explanatory vertical side view of one of the embodiments in which an implementation option, shown in Fig, used in car seat, and

on Fig shows an explanatory front view of a variant of implementation, shown in Fig.

The best option of carrying out the invention

What follows is a more detailed description of the present invention and the method of its implementation with reference to the preferred embodiments of shown on the drawings. It should be noted that the present invention is not limited to these options for implementation.

Figure 1-7 shows the shock absorber 1 according to the considered variant of implementation, with tank 4, in the inner space 2 which is a viscous fluid 3 and which has an axis About; at least one of the inhibiting wall, in this embodiment, two retention walls 5 and 6, which are located is received in the inner space 2 of the tank 4 and the delay viscous the fluid 3 in the direction R1 and the direction R2, which are both the direction R around the axis Of the tank 4; a partition wall 11 whereby each of the inner parts 7 and 8, is divided into two corresponding directions R1 and R2 delaying walls 5 and 6 in the inner space 2 of the tank 4, which is a viscous fluid 3, the flow of which delay delay walls 5 and 6, is divided into two chambers 9 and 10 in the directions R1 and R2, and the partition wall 11 is located in the internal space 2 of the tank 4 can be rotated in the directions R1 and R2 relative to the tank 4; a connecting hole 13 made in the partition 11 and allows the two chambers 9 and 10 in the inner space 2 of the tank 4 to communicate with each other by means of an adjustable channel 12 with variable cross sectional area; a limiter 14 flow to prevent the flow of the viscous fluid 3 in the chamber 9 in the direction R1 into the chamber 10 in the direction R2, which is the other direction around the axis O through the connecting hole 13, when the internal pressure of the viscous fluid 3 in the chamber 9 in the direction R1 exceeds a predetermined value under the condition of rotation of the partition 11 in the direction R1, which is one direction around the axis O relative to the tank 4; and elastic means 15 to the elastic force offset the partition 11 in the direction R2 relative to the reservoir 4.

The tank 4 has a hollow cylindrical part 21; the lower part 22, which is made in one piece at one end of the hollow cylindrical part 21 facing in the direction of A1, i.e. one axial direction and which closes the open plane of the hollow cylindrical part 21 in the direction A1, and the outer peripheral flange part 23, which is made in one piece at one end facing in the direction of A2, i.e. the other direction around the axis A; and an annular sealing element 25, which is attached to the flange part 23 by rivets or screws 24 and closes the open plane of the hollow cylindrical part 21 in the direction A2.

The hollow cylindrical portion 21 has an annular recess 28, is made on the annular end face 26 facing in the direction A2 to accommodate a sealing ring 27, which represents a ring with a circular cross section. The lower portion 22 includes a housing 29 in the form of a disc, made in one piece to the hollow cylindrical part 21; a shaft 31, made in one piece on the housing 29 and passing from the middle part of the side surface 30 in the direction A2 of the housing 29 in the inner space 2 in the direction of A2; and the hole 33 with a bottom made in the Central part of the body 29 and the middle part of the shaft 31, which includes and which has a supporting shaft, a connecting element or a similar element of the holes in the sides of the second surface 32, passing in the direction A1 of the body 29. In one piece with the sealing element 25 is made of a ring portion 34, the hollow cylindrical portion 36 extending in the direction A1 from the inner peripheral side held in the direction A1 side surface 35 of the portion 34, and a hollow cylindrical portion 37 extending in the direction A1 from the outer peripheral side held in the direction A1 side surface 35 of the portion 34, thus sealing element 25 is attached to the flange part 23 by rivets or screws 24 with the outer peripheral side parts 34 and the hollow cylindrical portion 37. The annular end face 38 presses the sealing ring 27 mounted in the slots 28 in the direction A1 of the hollow cylindrical portion 37.

Check the walls 5 and 6, which for one is made on the cylindrical inner peripheral surface 41 of the hollow cylindrical part 21, away from the inner peripheral surface 41 in the direction of the axis O and are in the direction around the axis And, at the same time they are located opposite each other in the radial direction and have respective end faces 42 and 43 of the slide with the inner radial side. Check the wall is not limited to two retention walls with equiangular intervals of 180° are in the direction R, as in the present embodiment, when the fact may be one wall, or three or more walls, which preferably equiangular intervals are in the direction of R.

The partition 11 has a columnar main part 45, which passes through the sealing element 25; two blade parts 47 and 48, which one performed on a cylindrical outer peripheral surface 46 of the main part 45 and away from the outer peripheral surface 46 to the outside in the radial direction, are in the direction around the axis a and located opposite each other in the radial direction symmetrically around the axis Of; the flange portion 49, which is made in one piece to the main body 45 and blade parts 47 and 48 located in the inner space 2; and a hollow cylindrical part 51, which for one performed on the side surface 50, passing in the direction A2 of the flange portion 49, departs from the side surface 50 in the direction A2 has a larger diameter than the hollow cylindrical part 36 and surrounds the hollow cylindrical part 36.

In the end 55 of the main portion 45 in the direction A1 of the bore of the cylindrical hole 56 with the bottom, which can be rotated includes a shaft 31 and the end face 57 in the direction A2 of the bore hole 59 with the bottom, which has a rotary shaft 58. The outer peripheral surface 46 of the main part 45 is impervious to liquids contact with the end surfaces 42 and 43 is calgene on the inner radial side of the inhibiting walls 5 and 6 are slidable in the directions R1 and R2. Each of the end surfaces 61 and 62 slide on the respective radial outer sides of the blade portions 47 and 48 is impervious to liquids contact with the inner peripheral surface 41 of the hollow cylindrical part 21 slidable in the directions R1 and R2. Between the hollow cylindrical portion 51 and the hollow cylindrical part 36 is a sealing ring 63.

The partition 11, which is made in one piece with the main part 45, a blade parts 47 and 48, the flange part 49 and the hollow cylindrical part 51, draws its main part 45 on the sealing element 25 and the shaft 31 can be rotated in the directions R1 and R2 and is able to rotate in the directions R1 and R2 relative to the reservoir 4. Therefore, as the rotary shaft 58 mounted in the bore 59 with the bottom rotates in the directions R1 and R2, the partition 11 ways to turn in the same direction.

In this embodiment, the inner space 2 is divided in two retention walls 5 and 6 on the two inner parts 7 and 8 in the direction R around the axis, and each of the internal parts 7 and 8 is divided in the directions R1 and R2 blade parts 47 and 48 into two chambers 9 and 10, respectively, located in the inner parts 7 and 8. However, when the flow of the viscous fluid 3 in the inner space is nste 2 in the direction of R1 and R2 is delayed one late wall, the inner space 2 can be divided one blade part into two chambers 9 and 10 or the inner space 2 can be divided by many blade parts on three or more cameras. In addition, when the flow of the viscous fluid 3 in the direction R1 in the direction R2 is delayed by two or more delaying walls, the inner space 2 can be divided into two or more internal parts, and each of the internal parts may be two or more blade portions which divide the inner part into three or more chambers.

Since in this embodiment, the side blade portion 47 and the side blade portion 48 are of identical construction, hereinafter is described in detail side blade portion 47, and the side blade portion 48 will be described as needed.

Blade portion 47 has a plate portion 65, the outer radial free end which has an end surface 61 of the slide, and its radial inner end made in one piece to the main body 45. In particular, as shown in detail in figure 4-6, a blade portion 47 in addition to the plate portion 65 in addition has made in one piece part 67 in the form of a disc, which departs from the side surface 66 in the direction R1 of the plate part 65; made in one piece truncated conical portion 70 to the I moves in the direction R1 from the end face 68 in the direction R1 part 67 in the form of a disc and has a truncated conical surface 69; made in one piece columnar protrusion 71, which departs from the speaker end in the direction R1 of the truncated conical portion 70, a pair of through holes 72, which pass through the plate part 65 and part 67 in the form of a disc and are located opposite each other in the radial direction; and a circular opening 74, one end of which is communicated with the through-hole 72 and the other end, i.e. on the side surface 73, passing in the direction R2 of the plate parts 65 communicates with the chamber 10 and goes to her. Thus, on passing in the direction R1 side surfaces 75 of the partitions 11, i.e. the blade portion 47 are lateral surface 66, the end face 68 and a truncated conical surface 69, and a pair of through holes 72 and a circular opening 74 to form the connecting hole 13 of the partition 11.

In particular, as shown in detail in figure 4-7, the limiter 14 thread, is able to inhibit the rotation of the partitions 11 relative to the reservoir 4 in the direction R, is the formative element 85 adjustable channel with a through hole 82, the end face 81 which faces the direction R1, enters into the chamber 9 in the direction R1, thus forming element 85 adjustable channel movably installed on the blade portion 47 so that its end face 84, facing in the direction R2 that is opposite the side on which ernesti 66, end 68 and a truncated conical surface 69 for passing in the direction R1 side surfaces 75 a blade portion 47, resulting in adjustable channel 12, one side of which is communicated with a through hole 82, and the other side communicates with the pair of through holes 72 of the connecting holes 13 communicating with the end face 68 and a truncated conical surface 69 of the side surfaces 75, passing in the direction R1 blade portion 47; and an annular elastic element 86, representing a ring with a circular cross section or a similar element and the surrounding portion 67 in the form of a disc and an adjustable channel 12 the annular elastic element 86 is located between the flange 84, facing in the direction R2 shaping element 85 regulated channel, and a side surface 75, passing in the direction R1 blade portion 47.

The formative element 85 adjustable channel has a circular plate section 91 with a through hole 82, which is a columnar protrusion 71; a pair of legs 92, one ends of which are made in one piece on the plate section 91 and respectively inserted into the through holes 72; and the hooks 94, which are respectively made in one piece on the other ends of the legs 92, extending from the other ends of the through holes 72, and is geared for the annular stepped poverhnosti blade portion 47 at the other ends of the through holes 72, to prevent the legs 92 out of the through holes 72.

The end 84 has a flat annular surface 100, which is a single unit made of one ends of the legs 92, and which is in contact with the end face 68 and an annular elastic element 86 radially outside of the legs 92; and a truncated conical surface 101, which is surrounded by the planar surface 100, complements the truncated conical surface 69 of the partition 11, is located in front of this truncated conical surface 69 and is in contact with the truncated conical surface 69.

Adjustable channel 12 has a truncated conical channel 105 formed by the truncated conical surface 69 of the partition 11 and the truncated conical surface 101 shaping element 85 adjustable channel; an internal annular channel 106 which is connected with a truncated conical channel 105 and formed by the end face 68 of the partition 11 and the flat surface 100 shaping element 85 adjustable channel radially inside of the leg 92; and an external annular channel 107 (figure 10), is connected with the inner annular channel 106 and formed by the end face 68 of the partition 11 and the flat surface 100 shaping element 85 adjustable channel radially outside of the legs 92. The truncated conical channel 105 communicates with the chamber 9 through the annular gap between the columnar protrusion 71, located in SLE the EIT hole 82, and plate section 91 in the through hole 82, the inner annular channel 106 communicates with a pair of through holes 72 of the connecting holes 13, and the outer radial edge of the outer annular channel 107 communicates with the chamber 9 when the elimination of contact between the flat surface 100 with the annular elastic element 86, as shown in figure 10.

The annular elastic element 86 is formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low elastic modulus at high temperature (annular elastic element becomes soft and high modulus at low temperature (annular elastic element becomes solid). The side surface 108 of the annular elastic element 86, passing in the direction R2, in contact with the side surface 66 and the radial inner side of the inner peripheral surface 109 of the annular elastic element 86 is elastically fitted to the cylindrical outer peripheral surface 110 with a radial outer side portion 67 in the form of a disc, and an annular elastic element 86 is partially departs from the end face 68 in the direction R1.

Elastic means 15 has a spring (helical spring) 111, on which is wound the plate is elongated, one end of which is attached to the outside of the tank 4 to the annular portion of the sealing element 25 and the other end attached to the main body 45 of the partition 11. In this design, due to the elasticity of the coil spring 111, the partition 11 is rotated in the direction R2, and thereby returns to its original position.

When turning the partitions 11 in the direction R1 with low speed at which the internal pressure of the viscous fluid 3 in the chamber 9 is not very high relative to the internal pressure of the viscous fluid 3 in the chamber 10, i.e. when making relative rotation-side rotary shaft 58 with a low speed in the direction of R1 against the elastic resistance of the coil spring 111, the limiter 14 flow enters the flat surface 100 in pressure contact with the annular elastic element 86 in contact with the side surface 66, in such a way that the annular elastic element 86 are not subjected to large elastic deformation in the diameter of its cross cross-section under the action of the internal pressure of the viscous fluid 3 in the chamber 9, as shown in figure 4, and thereby blocks the external annular channel 107 and prevents the message camera 9 camera 10 through the outer annular channel 107. At the same time, the chamber 9 communicates with the chamber 10 by means of a truncated conical channel 105 and the inner annular channel 106, the cross-sectional area of each of which is given by the diameter of the cross section of the annular elastic element 86, which is not all rhaesa large elastic deformation in the diameter of its cross section, and through the annular gap between the columnar protrusion 71 and the plate section 91 in the through hole 82 and through the connecting holes 13. Thus, during rotation of the partition 11 with a low speed in the direction R1 creates a small resistance force due to the fact that the viscous fluid 3 can flow from the chamber 9 into the chamber 10 by means of the described messages, as shown in Fig.

When turning the partitions with high speed in the direction R1, in which the internal pressure of the viscous fluid 3 in the chamber 9 becomes extremely high relative to the internal pressure of the viscous fluid 3 in the chamber 10, i.e. when making relative rotation-side rotary shaft 58 with a high speed in the direction R1, the limiter 14 flow causes the plate section 91 shaping element 85 adjustable channel to move toward the annular elastic element 86 under high internal pressure in the chamber 9 and causes the plate section 91 against the annular elastic element 86 so that through this move, the annular elastic element 86 has been a large elastic deformation in the diameter of its cross section and thus decreased the area of the cross-sections of a truncated conical channel 105 and the inner annular channel 106. Consequently the nutrient, the chamber 9 communicates with the chamber 10 by means of a truncated conical channel 105 and the inner annular channel 106, the area of cross-sections which respectively decreased. Thus, during rotation of the partition 11 with high speed in the direction R1 creates a large resistance force due to the fact that the viscous fluid 3 from the high resistance comes from the chamber 9 into the chamber 10 by means of the described messages. In addition, during rotation of the partition 11 in the direction R1 in the case of imparting relative rotation-side rotary shaft 58 with an even higher speed in the direction R1 of the annular elastic element 86 is subjected to further crushing and elastic deformation in the diameter of its cross section due to elastic buckling of circular elastic element 86 of the plate section 91 shaping element 85 of the controlled channel. Therefore, the truncated conical surface 101 is introduced into contact with the truncated conical surface 69 and thereby closes the truncated conical channel 105. At the same time, sets the minimum value of the cross-sectional area of the inner annular channel 106, which mainly reduces the flow of the viscous fluid 3 from the chamber 9 into the chamber 10 and preferably terminates above the turn with partitions 11 high MSE of the awn. Consequently, stops the rotation struck by an object, resulting in the rotation of the rotary shaft 58 with high speed, allowing force to keep experiencing the stroke object.

When attached on the side of the rotary shaft 58 relative rotation in the direction R2 is terminated, the partition wall 11 in the limiter 14 flow starts relative rotation in the opposite direction in the direction of R2 due to the elastic resistance of the coil spring 111. During this rotation of the shaping element 85 adjustable channel moves away from the wall 11, as shown in figure 10. As a result, the outer annular channel 107 is opened again, restores the communication between the chamber 9 and the connecting hole 13 through the outer annular channel 107, and are formed truncated conical channel 105 and the inner annular channel 106, each of which has a greater cross-sectional area, whereby the flow of the viscous fluid 3 with a small resistance comes from the chamber 9 into the chamber 10. Therefore, the partition 11 is rapidly rotated in the direction R2 with such a small force and returns to its original position, in which the side surface 73 is in contact with the late wall 5.

The annular elastic element 86 from natural rubber or synthetic rubber with low module in which rugosity at high temperature and high modulus at low temperatures is experiencing a large elastic deformation at high temperature and small elastic deformation at low temperature when the compaction plate section 91. Thus, in combination with a synergistic effect with a viscous fluid medium 3 having a positive temperature characteristic from the viewpoint of fluidity, in which fluidity increases at high temperatures and decreases at low temperature, it is possible to reduce the temperature dependence of the hydraulic resistance of the viscous fluid 3 flowing through the adjustable channel 12, the cross-sectional area of which is determined by the elastic deformation of the annular elastic element 86. Thus, it is possible to reduce the differences between, for example, on the one hand, the rigidity of the shock absorber 1 in the direction R1 in the case of imparting rotation with high speed, exceeding a specified amount when the shock becomes strong at high temperatures, and, on the other hand, the stiffness of the shock absorber 1 in the direction R1 in the case of imparting rotation with high speed, exceeding a specified amount when the shock becomes strong at low temperature. Therefore, it becomes possible to forcibly keep experiencing the impact of the object with hardness, which was not significantly different at high temperature and at low temperature in the direction R1.

Described the shock absorber 1, which is able to brake the rotation direction R about the axis Of the partitions 11 relative to the reservoir 4 can primantis is in the car seat 201, as shown in figure 11 and 12. In particular, car seat 201 according to this variant implementation has a seat 203 installed on the floor 202 of the vehicle to control its position in the forward-backward and the inclined position; a backrest 204 mounted on the seat 203 with adjustable inclined position, the headrest 205, based on the backrest 204 seats with the ability to move in the direction of movement of the vehicle, i.e. can be rotated in the direction R3 of the vehicle in this embodiment; rotary coercing means 206, forcing the headrest 205 to move in the direction R3 of the vehicle is in motion; delaying mechanism 207 for keeping the rotation of the headrest 205 in the direction of R3; and canceling means 208 to cancel retaining delaying mechanism 207 move the headrest 205 in the direction of R3, when the speed of the efforts applied to the backrest 204 seats in the direction opposite to the direction of movement of the vehicle exceeds a specified amount.

Because the mechanism of installation seat 203 on the floor 202 with the ability to regulate its position in the forward-backward and the inclined position and the installation mechanism of the backrest 204 on the seat 203 with adjustable tilt position are known, the detailed description is omitted.

The headrest 205 has a body 211 and the supporting element 213, which is attached to the housing 211 and is supported on the frame (not shown) of the backrest 204 of the seat can be rotated in the direction of R3 through the shaft 212. The rotation of the support element 213 in a direction opposite to the direction of R3, prevents the limiter 214 attached to the frame of the backrest 204 seats.

Turning coercing means 206 which serves as a means of forced displacement has a coil spring 215, one end of which is attached to the frame of the backrest 204 of the seat and the other end attached to a supporting element 213 in order to constantly force the headrest 205 rotatable to move in the direction R3 due to the elastic resistance of the coil spring 215.

Delaying mechanism 207 has a hook 217, which rests on the frame of the backrest 204 of the seat by means of shaft 216 to rotate in the direction of R4, pressed to the front end of the support element 213 and geared for it in order to prevent rotation of the support element 213 in the direction of R3, and the limiter 218 and coil spring 219 to install the hook 217 pressed in and meshed condition with the front end of the support element 213.

Abolishing the means 208 has a mechanism 222 conversion load in rotation, which is displaced under the action of the load applied to the supporting part 221 of the backrest 20 on the side occupying the seat 203 passenger and the transmitting mechanism 223, which passes delaying mechanism 207, the force applied to the supporting part 221 of the backrest 204 in a direction opposite to the direction of travel of the vehicle, provided that its speed exceeds the preset value, but does not transmit delay mechanism 207, the force applied to the supporting part 221 of the backrest 204 provided that its speed equal to a specified value or smaller.

Mechanism 222 conversion load in rotation has a rotary shaft 58, which can be rotated based on the frame of the backrest 204, and the bearing load plate 225 attached to the rotary shaft 58 and is located in the support part 221 of the backrest 204. Carrying the load plate 225, which can be rotated based on the frame of the backrest 204 through the rotary shaft 58, pressed into the pillow in the supporting part 221 of the backrest 204.

The transmitting mechanism 223 has a supporting shaft 226, based on the frame of the backrest 204, the lever 227, based on the supporting shaft 226 can be rotated in the directions R1 and R2, the shock absorber 1 is attached to the lever 227 and the cable 228, with one end attached to the lever 227 and the other end attached to the hook 217. The lever 227 is made in one piece, not illustrated flange which is attached to the absorber 1 through the installation hole 33 with the bottom of the absorber 1. Thus, the lever 227, i.e. cutting the storage tank 4 of the shock absorber 1, based on the frame of the backrest 204 of the seat can be rotated around the supporting shaft 226 in the directions R1 and R2 via a lever 227. At the same time, due to the elastic resistance of the coil spring 219 tank 4 shock absorber 1 prosepective during rotation in the direction R1 by means of a cable 228 and hook 217.

When the seat 203 is employed and to the backrest 204 is applied normal load from the weight of passengers in the direction opposite to the direction of movement of the vehicle, or to the backrest 204 additionally, the load is applied from the weight of passengers in the direction opposite to the direction of movement of the vehicle due to normal acceleration of the vehicle, these loads on the back 204 of the seat attached with a low speed which is equal to a specified value or less. As a result, load bearing plate 225, which takes such a load from the weight of passengers, slowly rotates around the rotary shaft 58 in the direction R1, without causing rotation in the direction R1 of the tank 4, which is due to the elastic resistance of the coil spring 219 prosepective during rotation in the direction R1. This slow rotation of the load-bearing plate 225 creates a slow flow of the viscous fluid 3 from the chamber 9 into the chamber 10 through the truncated conical channel 105 and the inner annular channel 106, the cross-sectional area of each of the cat is, which is set by the diameter of the cross section of the annular elastic element 86, which does not undergo large elastic deformation, and through the annular gap between the columnar protrusion 71 and the plate section 91 in the through hole 82, the through hole 72 and a circular opening 74. Consequently, the load bearing plate 225 and thus the backrest 204 seats are moderate impact. In addition, at such slow rotation of the load-bearing plate 225 partition 11 is not rotated in the direction R1 relative to the tank 4, as shown in Fig, which is set to a disconnected state of the partition 11 and the reservoir 4 relative to the rotation direction R1. As a result, the cable 228 through the tank 4 is not generated tensile stress, causing rotation in the direction of R4 hook 217 to cancel the abutment and engagement with the front end of the support element 213. Thus, the inhibiting mechanism 207 delays the rotation of the headrest 205 in the direction R3 of the vehicle and thereby supports the headrest 205 in the normal position.

On the other hand, when the rear shock on occupying the seat 203 passenger operates a high speed exceeding a specified amount in the direction opposite to the direction of movement of the vehicle and carrying the load plate 225 suddenly rotates around the rotary shaft 58 in the direction R1, the rotation of the rotary shaft 58 in the direction of the tion R1 with speed, exceeding the preset value, restricts the flow of the viscous fluid 3 from the chamber 9 into the chamber 10 through the truncated conical channel 105 and the inner annular channel 106, the cross-sectional area of each of which is given by the diameter of the cross section of the annular elastic element 86, which had been subjected to a large elastic deformation. As a result, sets a bound state of the reservoir 4 and the partitions 11 for rotation in the direction R1. Therefore, the rotation of the rotary shaft 58 in the direction R1 at a rate greater than a predetermined value, causes the reservoir 4 to rotate around the supporting shaft 226 in the direction R1 by means of a partition 11, overcoming the elastic resistance of the coil spring 219. Thus, in the cable 228 creates a tensile force that causes the rotation of the hook 217 in the direction of R4 to cancel the abutment and engagement with the front end of the support element 213. Therefore, the hook 217 inhibiting mechanism 207 is rotated around the shaft 216 in the direction of R4 to cancel the connection and engagement with the front end of the support element 213, causing the headrest 205 forcibly rotated in the direction of R3 under the action of the coil spring 215 in order to hold the head of the passenger.

Car seat 201 is transmitting mechanism 223, equipped with a shock absorber 1 serving fur the switching mechanism, whereby the force applied to the backrest 204 seats in the direction opposite to the direction of movement of the vehicle at a speed exceeding a predetermined value is transmitted delaying mechanism 207 in order to cancel the retention delay mechanism 207 of rotation of the headrest 205 in the direction R3 movement, while the force applied to the backrest 204 seats at a speed equal to a specified value or less, is not transmitted delaying mechanism 207 for the preservation of delaying delaying mechanism 207 of rotation of the headrest 205 in the direction R3 of the vehicle. Thus, it is possible to forcibly move the headrest 205 in the direction R3 of the vehicle only, for example, at the moment of collision by the corresponding detection point, for example, collision and no collision.

If after moving the headrest 205 in the direction R3 of the vehicle headrest 205 forcibly turned in the opposite direction R3, in the described example of the vehicle seat 201 can be implemented to reinstall the abutment and engagement of the forward end of the support element 213 with hook 217 to the front end of the support element 213 smoothly moved along the inclined surface of the hook 217, and the hook 217 turned in the opposite direction. Slidetoplay, although in the described embodiment uses a wire 228, alternatively, can be used gears, gear rack, etc.

Instead of the described construction may be used in the design shown in Fig and 14. In particular, on the side surface 66 of the plate portion 65 made in one piece annular protrusion 112, surrounded by part 67 in the form of a disc and which is concentric with a portion 67 in the form of a disc. The side surface 108 of the annular elastic element 86 is in contact with the side surface 66, his inner peripheral surface 109 is elastically installed on the outer peripheral surface 110 part 67 in the form of a disc, and it is located in an annular groove 113 formed by the protrusion part 112 and 67 in the form of a disk, thereby to partially extend to the outside of this ring grooves 113. In addition, the plate portion 65 of the blade portion 47 is made one round hole 115, a limited annular inner peripheral surface 114 of the part 67 in the form of a disc and plate part 65 and communicates with a circular hole 74. In this case, the connecting hole 13 of the partition 11 is formed a round hole 115 and a round hole 74.

In addition, instead of the above-described limiter 14 thread can use the limiter 116 of the flow shown in Fig-17. what aka the limiter 116 flow has a formative element 122 of the adjustable channel which is movably mounted on the plate portion 65 of the partition 11, and on its end face 118, facing in the direction R2 in the direction of the side surface 66, made many radial coupling grooves 121 (in this embodiment, two), one end 119 of which respectively extends into the chamber 9 and the other end 120 in a round hole 115 of the connecting hole 13; and an annular elastic element 86, which in the radial direction is held between one end 119 and the other end 120 of each of the connecting grooves 121 and installed on the side surface 66 of the plate portion 65 in the blade portion 47 partitions 11, resulting by contact pressure of the contact and without contact of the annular elastic element 86 with the end 118 facing in the direction R2 shaping element 122 of the adjustable channel with connecting grooves 121 formed adjustable channel 123 (see Fig), including connection groove 121 for mutual communication of the two chambers 9 and 10 of the reservoir 2 through the connecting holes 13, allowing the chamber 9 communicates with the connecting hole 13.

The formative element 122 of the adjustable channel has a circular plate section 125 with an end face 118 and the connecting grooves 121, symmetrically made on the end face 118 about an axis; a pair of legs 126, one ends of which are respectively done the us in one piece on the plate section 125, while the legs are moving away from some of these ends and inserted into the circular hole 115 of the connecting hole 13; and the hooks 127, which are respectively made in one piece on the other ends of the pair of legs 126 and is geared for the annular stepped surface 93 between the round hole 115 and a round hole 74, so as not to give the legs 126 out of round holes 115 of the connecting holes 13.

The formative element 122 of the adjustable channel is installed on the blade portion 47 of the partition 11 so that the outer peripheral surface 131 a pair of its legs 126 are movable in sliding contact with the inner peripheral surface 114 of the plate part 65 and part 67 in the form of a disc, bounding round hole 115.

Adjustable channel 123 formed annular channel 133, which is located between the end plate 118 section 125 shaping element 122 of the adjustable channel and the circular external peripheral surface 132 of the annular elastic element 86 and the cross-sectional area which varies as the end face 118 of the plate section 125 approaches the outer peripheral surface 132 and is removed from the outer peripheral surface 132; and coupling grooves 121, the cross-sectional area which varies as due to the elastic deformation is elastic ring element 86 of its deformable portion is pressed under the action of pressure contact with the external peripheral surface 132 with the end plate 118 plot 125, and as the indentation is cancelled in case of cancellation of the clamping contact.

At slow rotation of the partition 11 in the direction R1 with low speed at which the internal pressure of the viscous fluid 3 in the chamber 9 is not very high relative to the internal pressure of the viscous fluid 3 in the chamber 10, i.e. when making relative rotation-side rotary shaft 58 with a low speed in the direction R1, the limiter 116 flow enters the end face 118 shaping element 122 of the adjustable channel in contact with the outer peripheral surface 132 of the annular elastic element 86 to such an extent that the annular elastic element 86 are not subjected to large elastic deformation under the action of the internal pressure of the viscous fluid 3 in the chamber 9, as shown in Fig, and thereby blocks the annular channel 133 and delays the message camera 9 camera 10 through the annular channel 133. At the same time, the chamber 9 communicates with the chamber 10 through the connecting grooves 121 and the connecting hole 13. Thus, in the slow rotation of the partition 11 in the direction R1 creates a small resistance force, and the flow of the viscous fluid 3 can flow from the chamber 9 into the chamber 10 by means of the described messages.

When turning the partitions 11 in the direction R1 with high speed, where VL is the internal pressure of the viscous fluid 3 in the chamber 9 becomes extremely high relative to the internal pressure of the viscous fluid 3 in the chamber 10, i.e. when making relative rotation-side rotary shaft 58 with a high speed in the direction R1, the limiter 116 flow causes the annular elastic element 86 to be high elastic deformation diameter of its cross section due to the pressure contact of the end face 118 shaping element 122 of the adjustable channel with the outer peripheral surface 132 of the annular elastic element 86 due to the high internal pressure in the chamber 9, as shown in Fig. As under the action of the elastic deformation of the deformable portion of the annular elastic element 86 is pressed into the connecting grooves 121, the area of the cross-sections of the connecting grooves 121 decreases. Consequently, the chamber 9 communicates with the chamber 10 through an adjustable channel 123, the cross-sectional area of which is correspondingly decreased, and through the connecting hole 13. Thus, during rotation of the partition 11 with high speed in the direction of R1 leads to a large resistance force due to the involuntary admission of a flow of the viscous fluid 3 from the chamber 9 into the chamber 10 with high resistance described by the message. In addition, during rotation of the partition 11 in the direction R1 as a result of making relative rotation-side rotary shaft 58 with even more in the high speed in the direction R1 of the annular elastic element 86 is subjected to further crushing and elastic deformation due to elastic buckling of plate section 125 shaping element 122 of the adjustable channel the outer peripheral surface 132 of the annular elastic element 86. Therefore, the cross-sectional area of each of the connecting grooves 121 are further reduced due to the strong imprint of the deformable part of the annular elastic element 86 in the connection groove 121, resulting in a crumpled as a result of deformation of the annular elastic element 86 specifies a very small value of the cross-sectional area of the adjustable channel 123 and thereby mainly minimizes the flow of the viscous fluid 3 from the chamber 9 into the chamber 10 through the connecting hole 13 and preferably terminates described rotation at high speed by means of a partition 11. Consequently, stops the rotation struck by an object, which tends to rotate the rotary shaft 58, which allows force to keep experiencing the stroke object.

After the partition 11 is turned in the direction R1, as shown in Fig, at the termination of imparting relative rotation-side rotary shaft 58 in the direction R2 in the limiter 116 flow partition 11 starts to rotate in the opposite direction in the direction of R2 due to the elastic resistance of the coil spring 111. At the twist of a forming element 122 of the adjustable channel moves in the direction R1 relative to the re shall ordci 11. As a result, the indentation of the deformable part of the annular elastic element 86 in the connection groove 121 is canceled, the annular channel 133 is opened again, the flow of the viscous fluid 3 with a small resistance comes from the chamber 9 into the chamber 10 through the connecting grooves 121 and the annular channel 133. Therefore, the partition 11 is rapidly rotated in the direction R2 with such a small force and returns to its original position.

As described above, when the camera 9 creates internal pressure of the viscous fluid 3 in excess of a specified amount under the condition of rotation of the partition 11 in the direction R1, the annular elastic element 86 is elastically deformed as a result of entering into pressure contact with the end face 118 shaping element 122 of the adjustable channel after the disappearance of the annular channel 133 provided relative movement shaping element 122 of the adjustable channel, resulting in its provideproperty part of the fill coupling grooves 121 and reduce the cross-sectional area of the adjustable channel 123. In that time, when the camera 10 generates the internal pressure of the viscous fluid 3 in excess of a specified amount under the condition of rotation of the partition 11 in the direction R2, the end 118 shaping element 122 of the adjustable channel slowly drifting away to lavage elastic element 86, in the resulting annular channel 133.

In addition, the limiter 116 flow, which is able to brake the rotation of the partitions 11 relative to the reservoir 4, the annular elastic element 86 from natural rubber or synthetic rubber with a low elastic modulus at high temperature and high modulus at low temperatures is experiencing a large elastic deformation at high temperature and small elastic deformation at low temperature in the case of a shear plate section 125. Thus, in combination with a synergistic effect with a viscous fluid medium 3 having a positive temperature characteristic from the viewpoint of fluidity, in which fluidity increases at high temperatures and decreases at low temperature, it is possible to reduce the temperature dependence of the hydraulic resistance of the viscous fluid 3 flowing through the adjustable channel 123, including the connecting grooves 121, the cross-sectional area of which is determined by the amount of elastic deformation of the annular elastic element 86. Thus, it is possible to reduce the differences between, for example, on the one hand, the rigidity of the shock absorber 1 in the direction R1 in the case of imparting rotation with high speed, exceeding a specified amount when the shock becomes strong at high temperature, and on the other the part, the stiffness of the shock absorber 1 in the direction R1 in the case of imparting rotation with high speed, exceeding a specified amount when the shock becomes strong at low temperature. Therefore, it becomes possible to forcibly keep experiencing the impact of the object with hardness, which was not significantly different in direction R1 at high temperature and at low temperature.

In case of application of the shock absorber 1 having a limiter 116 flow in the described car seat 201, shown at 11 and 12, the shock absorber 1 is similar.

Described the shock absorber 1 having described the limiter 14 thread or the limiter 116 flow, in each case able to inhibit rotation of the partitions 11 relative to the reservoir 4. However, alternatively, the absorber may be able to inhibit the linear displacement of the septum relative to the tank, as shown in Fig and 21.

In particular, the shock absorber 1 shown in Fig and 21 and having a limiter 14 thread includes, for example, the cylinder 152 that serves as a reservoir for a viscous fluid 3 that fit in its inner space 2; the piston 153, located in the inner space 2 of the cylinder 152 with the possibility of linear movement in the direction A, i.e. the axial direction, and serves as a partition for blocking in the morning space 2 cylinder 152 with a viscous fluid medium 3 into two chambers 9 and 10 in the direction A; the connecting hole 13 in the piston 153 that allows the two chambers 9 and 10 in the inner space 2 of the cylinder 152 to communicate with each other by means of an adjustable channel 12 with variable cross sectional area; and elastic means 154 to the elastic force of the piston 153 in the direction A2 relative to the cylinder 152. When in the chamber 9 in the direction A1, which is one direction And creates internal pressure of the viscous fluid 3 in excess of a specified amount, assuming a linear movement of the piston 153 in the direction A1, the limiter 14 flow can limit the flow of the viscous fluid 3 from the chamber 9 into the chamber 10 through the connecting hole 13 in the direction A2, which is another direction A.

The cylinder 152 has a hollow cylindrical body 163, in one piece with the hollow cylindrical portion 161 of small diameter hollow cylindrical portion 162 of large diameter; an annular bearing element 164 is installed and fixed to the inner peripheral surface of the open end of the hollow cylindrical part 161 of small diameter; an annular cap 165, through thread fixed to the inner peripheral surface of the open end of the hollow cylindrical part 161 of small diameter and adjacent to the bearing element 164; and an annular sealing element 167, the plant and secured to the open end of the hollow cylindrical part 162 of large diameter and having made in one piece with him an installation element 166. Between the outer peripheral surface of the sealing element 168 167 and the cylindrical inner peripheral surface 169 of the hollow cylindrical part 162 of large diameter is located a sealing ring 171 installed in the annular groove 170, which is made in the circular external peripheral surface 168 of the small diameter of the sealing element 167.

The piston 153 is a hollow cylindrical lower portion 176 with a bottom, which passes through the bearing element 164 and the cover 165 with the possibility of linear movement in the direction a and to which is attached one end of the rod 175, the other end of which outside of the cylinder 152 is an installation element 174; and a ring portion 178, which is made in one piece on the outer peripheral surface of the lower portion 176 and its circular outer peripheral surface 177 is in contact with the inner peripheral surface 169 of the hollow cylindrical part 162 of large diameter, with the possibility of linear movement in the direction A. the Annular portion 178 is executed in the same manner as and a blade portion 47 or 48, there are two constraints 14 stream.

Accordingly, each of the pair of limiters 14 thread, located in the annular portion 178 has a formative element 85 adjustable channel with a through hole 82, the end 81 of which, about ewenny in the direction A1, goes into the chamber 9 in the direction A1, thus forming element 85 adjustable channel set on the ring part 178 to move in the direction of And relative to the ring portion 178 so as to be opposite to the side surface 75 of the ring portion 178 on the end face 84, facing in the direction A2, resulting in adjustable channel 12, one side of which is communicated with a through hole 82, and the other side with a connecting hole 13 communicating with the side surface 75, passing in the direction A1 of the ring portion 178; an annular elastic element 86 surrounding an adjustable channel 12 and located between the flange 84, facing in the direction A2 shaping element 85 regulated channel, and a side surface 75, passing in the direction A1 of the ring portion 178.

Elastic means 154 has a coil spring 181 which one end facing in the direction And attached to the bearing element 164 and the other end facing in the direction And attached to the ring portion 178 and surrounds the rod 175. In the same way as a spiral spring 111, the elastic means 154 can linearly move the piston 153 in the direction of A2 due to the elastic resistance of the coil spring 181 to return to its original position.

In the shock absorber 1 shown nafig and 21, instead of limiter 14 flow can be used are described limiter 116 flow. In this case, the limiter 116 flow has a formative element 122 of the adjustable channel, which is movably mounted on the annular portion 178 and the end 118 of which, facing the side surface 75 of the ring portion 178, connecting grooves 121, one end 119 which respectively extend into the chamber 9, and the other ends 120 extend into the connection hole 13; an annular elastic element 86, which is held between one end 119 and the other end 120 of each of the connecting grooves 121 in the radial direction and is installed on the side surface 75, passing in the direction A1 of the ring portion 178, resulting in by contact pressure of the contact and without contact of the annular elastic element 86 with the end 118 facing in the direction A2 shaping element 122 of the adjustable channel with connecting grooves 121 formed adjustable channel 123, including connection groove 121 for mutual communication of the two chambers 9 and 10 of the reservoir 2 through the connecting holes 13, allowing the chamber 9 communicates with the connecting hole 13.

In the shown Fig and 21 of the shock absorber 1 having a limiter 116 of the flow shaping element 122 of the adjustable channel has a flat plate section 125 with connection to nakami 121; a pair of legs 126, one corresponding ends of which are made in one piece on the plate section 125 and inserted into the connection hole 13; and the hooks 127, respectively, for which one made in other parts of the pair of legs 126 and does not give the legs 126 out of the connecting hole 13. When the camera 10 in the direction A2 creates an internal pressure of the viscous fluid 3 in excess of a specified amount, subject to the linear displacement of the ring portion 178 in the direction A2, the end 118 facing in the direction A2 shaping element 122 of the adjustable channel moves away from the annular elastic element 86. At the same time, in the chamber 9 in the direction A1 creates an internal pressure of the viscous fluid 3 in excess of a specified amount, subject to the linear displacement of the ring portion 178 in the direction A1, the annular elastic element 86 is elastically deformed and thereby fills the connecting grooves 121 and reduces the cross-sectional area of the adjustable channel 12.

Shown in Fig and 21 of the shock absorber 1 can also be used in car seat 201, as shown in Fig and 23. In this case, car seat 201 used in the absorber 1, which expands and contracts in the direction of And at the expense of linear movement in the direction of a cylinder 152 relative to Porsche what I 153 and, with the help of mounting elements 166 and 174 is installed in the middle of the cable 228. The rotary shaft 58 is attached to the lever 227, on which he leans, together with the supporting shaft 226 can be rotated in the directions R1 and R2.

Car seat 201, provided with a shock absorber 1 shown in Fig and 21, also has a transmitting mechanism 223, which has a shock absorber 1 that serves as a switching mechanism, when the force applied to the backrest 204 seats in the direction opposite to the direction of movement of the vehicle at a speed exceeding a predetermined value is transmitted delaying mechanism 207 to cancel retaining delaying mechanism 207 of rotation of the headrest 205 in the direction R3 of the vehicle is in motion, and the force applied to the backrest 204 seats at a speed equal to a specified value or less, is not transmitted delaying mechanism 207 to save the retaining delaying mechanism 207 of rotation the headrest 205 in the direction R3 of the vehicle. Thus, it is possible to forcibly move the headrest 205 in the direction R3 of the vehicle only, for example, at the moment of collision by the corresponding detection point, for example, collision and no collision.

1. The absorber containing:
the tank, in the inner space of which is a viscous fluid
at least one of the inhibiting wall in Berlin is defined in the inner space above the tank and check the flow of viscous fluid medium in the direction around the axis of the above-mentioned tank,
a partition for blocking the internal space above the tank, which is a viscous fluid stream which delays mentioned retention wall, at least two cameras in the direction around the axis, with said partition wall is located in the interior space above the tank can be rotated in the direction around the axis relative to that of the tank,
at least one connecting hole made in the above-mentioned partition and enabling both cameras in the inner space of the above-mentioned tank to communicate with each other by means of an adjustable channel with variable cross-sectional area, and
the flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the direction around the axis in the chamber on the other side in the direction around the axis through the aforementioned connection hole when the camera is on one side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation of the said partition in one direction around the axis relative to that of the tank,
these flow limiter has a formative element of the controlled channel having a through hole, the end of which is Oh, turned in one direction around the axis mentioned shaping element adjustable channel opens into the chamber on one side in the direction around the axis referred to the formative element of the controlled channel movably mounted on said partition in such a way that its end face facing in the other direction around the axis mentioned shaping element adjustable channel that is opposite the side surface, passing in one direction around the axis of the said partitions, resulting in a regulated channel, one side of which is communicated with a through hole, and the other side with a connecting hole communicating with the side surface held in one side in the direction around the axis of the said partition wall; and an annular elastic element surrounding the adjustable channel and located between the end face facing in the other direction around the axis mentioned shaping element adjustable channel, and a side surface, passing in one direction around the axis of the said walls, thereby to inhibit rotation of the said partition in the direction around the axis relative to that of the tank.

2. The shock absorber according to claim 1, in which the aforementioned molding element re is wireimage channel has a plate section with a through hole, leg, one end of which is made in one piece on the plate section and inserted in said connecting hole, and the hook, made in one piece on the other end of the leg to prevent the leg out of the aforementioned connecting holes.

3. The shock absorber according to claim 1 or 2, in which said partition has a truncated conical surface on the side going in one direction around the axis, these formative element of the controlled channel has a truncated conical surface which is complementary truncated conical surface of the said partition and located in front of the truncated conical surface, and an adjustable channel is a truncated conical channel formed by the truncated conical surface of the said partitions and the truncated conical surface mentioned shaping element of the controlled channel.

4. The shock absorber according to claim 1 or 2, further having an elastic means of the elastic force of the bias mentioned partitions in the other axial direction relative to that of the tank.

5. The shock absorber according to claim 1 or 2, in which the mentioned annular elastic element is formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low modulus UE shall treat at high temperature and at low temperature.

6. The absorber containing:
the tank, in the inner space of which is a viscous fluid
at least one of the inhibiting wall located in the interior space above the tank and check the flow of viscous fluid medium in the direction around the axis of the above-mentioned tank,
a partition for blocking the internal space above the tank, which is a viscous fluid stream which delays mentioned retention wall, at least two cameras in the direction around the axis, with said partition wall is located in the interior space above the tank can be rotated in the direction around the axis relative to that of the tank,
at least one connecting hole made in the above-mentioned partition and enabling both cameras in the inner space of the above-mentioned tank to communicate with each other by means of an adjustable channel with variable cross-sectional area, and
the flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the direction around the axis in the chamber on the other side in the direction around the axis through the aforementioned connection hole when the camera is on one side in the direction around the axis is created inside the pressure of the viscous fluid, in excess of a specified amount, subject to a rotation of the said partition in one direction around the axis relative to that of the tank,
these flow limiter has a formative element of the controlled channel, which is movably mounted on said partition and at the end of which, passing in the other direction in the direction about the axis and facing the side surface, passing in one direction around the axis of the said partitions, connecting groove, one end of which opens in said chamber in the direction around the axis, and the other end extends in said connecting hole; and an annular elastic element, which is held in the radial direction between the one end and the other end of the connecting groove is installed on the side surface, passing in one direction in the direction around the axis of the septum, resulting by contact pressure of the contact and without contact mentioned annular elastic element with an end face facing in the other direction around the axis mentioned shaping element adjustable channel with connecting groove is formed adjustable channel for mutual communication of the two cameras mentioned tank through the aforementioned connecting holes, allowing the UE is mentioned chamber to communicate with the connecting hole in the direction around the axis with the in order to brake the rotation direction around the axis of the said partition relative to that of the tank.

7. The shock absorber according to claim 6, in which the aforementioned molding element adjustable channel has a plate section with a connecting groove, a stem, one end of which is made in one piece on the plate section and inserted in said connecting hole, and the hook, made in one piece on the other end of the leg to prevent the leg out of the aforementioned connecting holes.

8. The shock absorber according to claim 6 or 7, wherein, when in said chamber on the other side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation mentioned partitions in the other direction around the axis relative to that of the tank, the end face facing in the other direction around the axis mentioned shaping element adjustable channel moves away from the annular elastic element.

9. The shock absorber according to claim 6 or 7, wherein, when in said chamber on one side in the direction around the axis creates an internal pressure of the viscous fluid in excess of a specified amount, subject to a rotation of the said partition in one direction around the axis on the said tank, the aforementioned annular elastic element is elastically deformed, filling the connecting groove and reducing the cross-sectional area of the controlled channel.

10. The shock absorber according to claim 6 or 7, optionally having elastic means, the elastic force of the bias mentioned partitions in the other direction around the axis relative to that of the tank.

11. The shock absorber according to claim 6 or 7, in which the mentioned annular elastic element is formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low elastic modulus at high temperature and at low temperature.

12. The absorber containing:
the tank, in the inner space of which is a viscous fluid
partition, disposed in the internal space above the tank with the possibility of linear movement in the axial direction relative to the above-mentioned tank for blocking the internal space above the tank, which is a viscous fluid at least two cameras in the axial direction;
at least one connecting hole made in the above-mentioned partition and enabling both cameras in the inner space of the above-mentioned tank to communicate with each other through an adjustable channel with variable cross-sectional area,
the flow limiter for limiting the possible flow of viscous fluid medium in the chamber on one side in the axial direction into the chamber on the other side in the axial direction through the aforementioned connection hole, when the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction exceeds a specified amount, subject to linear movement of the said partition in one axial direction relative to the above-mentioned tank,
these flow limiter has a formative element of the controlled channel having a through hole, the end of which, facing in one axial direction mentioned shaping element adjustable channel opens into the chamber on one side in the direction around the axis referred to the formative element of an adjustable bandwidth with linear movement set on said partition in such a way that its end face facing in the other axial direction mentioned shaping element adjustable channel that is opposite the side surface, passing in one axial direction mentioned partitions, resulting in a regulated channel, one side of which is communicated with a through hole, and the other side with said connecting hole communicating with the side surface held in one axial direction, the said partitions; and an annular elastic element surrounding the adjustable channel and located between the end face facing in the other axis is upravlenii mentioned shaping element adjustable channel and a side surface, passing in one axial direction of the said walls, thereby to inhibit the linear displacement of the said partition in the axial direction relative to that of the tank.

13. The shock absorber according to item 12, which referred to the formative element of the controlled channel has a plate section with a through hole, a stem, one end of which is made in one piece on the plate section and inserted in said connecting hole, and the hook, made in one piece on the other end of the leg to prevent the leg out of the aforementioned connecting holes.

14. The shock absorber according to item 12 or 13, in which said partition has a truncated conical surface on the side surface held in one axial direction, these formative element of the controlled channel has a truncated conical surface which is complementary truncated conical surface of the said partition and located in front of the truncated conical surface, and an adjustable channel is a truncated conical channel formed by the truncated conical surface of the said partitions and the truncated conical surface mentioned shaping element of the controlled channel.

15. The absorber at para.12 Il is 13, equipped with elastic means, the elastic force of the bias mentioned partitions in the other axial direction relative to that of the tank.

16. The shock absorber according to item 12 or 13, in which the mentioned annular elastic element is formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low elastic modulus at high temperature and at low temperature.

17. The absorber containing:
the tank, in the inner space of which is a viscous fluid
partition, disposed in the internal space above the tank with the possibility of linear movement in the axial direction relative to the above-mentioned tank for blocking the internal space above the tank, which is a viscous fluid at least two cameras in the axial direction,
at least one connecting hole made in the above-mentioned partition and enabling both cameras in the inner space of the above-mentioned tank to communicate with each other through an adjustable channel with variable cross sectional area;
the flow limiter to limit the flow of viscous fluid medium in the chamber on one side in the axial direction into the chamber on the other side in the axial napravleniya mentioned connecting hole, when the internal pressure of the viscous fluid medium in the chamber on one side in the axial direction exceeds the preset value, assuming a linear movement of the said partition in one axial direction relative to the above-mentioned tank,
these flow limiter has a formative element of the controlled channel, which is movably mounted on said partition and at the end of which, facing in the other axial direction toward the side surface held in one axial direction mentioned partitions, connecting groove, one end of which opens in said chamber in one axial direction, and the other end extends in said connecting hole; and an annular elastic element, which is held in the radial direction between the one end and the other end of the connecting groove is installed on the side surface held in one axial direction mentioned partitions, resulting in by contact pressure of the contact and without contact mentioned annular elastic element with an end face facing in the other axial direction mentioned shaping element adjustable channel with connecting groove is formed adjustable channel for mutual communication of the two cameras mentioned tank through the om mentioned fixing holes, allowing mentioned chamber to communicate with the connecting hole in one axial direction in order to slow down the linear displacement of the said partition wall in the axial direction relative to that of the tank.

18. The shock absorber according to 17, in which the aforementioned molding element adjustable channel has a plate section with a connecting groove, a stem, one end of which is made in one piece on the plate section and inserted in said connecting hole, and the hook, made in one piece on the other end of the leg to prevent the leg out of the aforementioned connecting holes.

19. The absorber at 17 or 18, wherein, when in said chamber on the other side in the axial direction creates an internal pressure of the viscous fluid in excess of a specified amount, subject to linear movement of the said partitions in the other axial direction relative to that of the tank, the end face facing in the other axial direction mentioned shaping element adjustable channel moves away from the annular elastic element.

20. The absorber at 17 or 18, wherein, when in said chamber on one side in the axial direction creates an internal pressure of the viscous fluid exceeding a specified amount when the service is under linear mentioned partitions in one axial direction relative to the above-mentioned tank, mentioned annular elastic element is elastically deformed, filling the connecting groove and reducing the cross-sectional area of the controlled channel.

21. The absorber at 17 or 18, further having an elastic means of the elastic force of the bias mentioned partitions in the other axial direction relative to that of the tank.

22. The absorber at 17 or 18, in which the mentioned annular elastic element is formed by a ring with a circular cross section of natural rubber or synthetic rubber with a low elastic modulus at high temperature and at low temperature.

23. Car seat containing:
the backrest of the vehicle seat,
the headrest based on the backrest can be moved in the direction of movement of the car,
coercive means, forcibly moving the said headrest in the forward direction of the vehicle,
retention mechanism for retaining the move mentioned headrest in the direction of movement of the car and
canceling means for canceling the retaining mentioned delaying the transfer mechanism referred to the headrest in the direction of movement of the vehicle when the speed of the efforts made to the said seat back in a direction opposite is UPRAVLENIE the vehicle is in motion, exceeds the preset value,
these abolishing the tool has a mechanism of transformation of a load in the rotation for converting a load applied to the supporting part of the said seat backrest, in the turning effort transmitting mechanism for transmitting delay mechanism, efforts to mentioned the backrest in the direction opposite to the direction of movement of the vehicle, provided that the speed exceeds the preset value,
referred to the transmitting mechanism has a shock absorber according to any one of claims 1 to 20,
in which one of the elements comprising the said reservoir and the said wall of the shock absorber is connected to the conversion mechanism of the load in the rotation, and the other of the elements comprising the said reservoir and the said wall of the shock absorber is connected with the said retarding mechanism.

24. Car seat according to item 23, in which the said conversion mechanism of the load during rotation of the carrier has a load plate that can be rotated based on the frame referred to the backrest and is located in the supporting part of the said backrest.

25. Car seat according to item 23 or 24, in which the said headrest is based on the backrest with the possibility of rotation or linear movement in which upravlenii the vehicle is in motion, these forcing means forces the said headrest to rotate or linearly move in the direction of movement of the vehicle, and the delay mechanism delays the rotation or linear motion referred to the headrest in the direction of movement of the car.



 

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1 dwg

FIELD: automotive industry.

SUBSTANCE: hydraulic shock absorber comprises hydraulic cylinder (1) and rod with piston (2). The piston is provided with throttle openings (3) and receives the relief compression valve (4) and relief delivery valve (5). The shock absorber receives outer pipeline (6) for communication the top and bottom spaces of hydraulic cylinder (1), step motor (11) provided with mechanical drive (12) for control of compression (8) and delivery (10) cock-throttles, and control unit (13) connected with step motor (11). The pipeline receives, connected in parallel, the unit composed of by-pass valve (7) and compression cock-throttle (8) connected in series and unit composed of by-pass valve (9) and delivery cock-throttle (10) connected in series.

EFFECT: improved shock absorbing.

1 dwg

FIELD: transport engineering; suspensions.

SUBSTANCE: proposed suspension hydraulic shock absorber has hydraulic cylinder, rod with piston, throttling holes made in piston, and compression valve and rebound valves. Sock absorber contains additionally external liquid flow main line secured between upper and lower spaces of hydraulic cylinder, with compression bypass spring valve and rebound bypass spring valve installed in parallel with external main line and device to adjust compression ratio of springs of bypass valves. Said device includes step motor and worms with floating nuts installed in compression and rebound valve housings, worms being mechanically coupled with step motor. Worms with floating nuts are set into rotation by step motor simultaneously, owing to corresponding arrangement of bypass valves, and provide synchronous adjustment of compression ratio of valve springs owing to translational displacements of floating nuts along worms. Shock absorber has control unit electrically coupled with step motor.

EFFECT: provision of adjustment of resistance of shock absorber depending on required smoothness, accuracy and operative control within required range owing to adjustment of are of cross section of throttling holes.

1 dwg

FIELD: transport.

SUBSTANCE: hydraulic damper comprises high-pressure tube 10. Piston 14 divides tube 10 into compression chamber CC and draft chamber CT communicated via piston 14. Hydraulic fluid tank 14 communicates with compression chamber CC. Control valve VC communicates draft chamber CT with tank 20 and comprises tubular case 40 with radial channel open toward tubular case inner chamber and tank 20. Locking rod 60 displaces axially in tubular case 40 between control valve open and closed position to communicate draft chamber CT with tank 20. Actuator A displaces locking rod 60 in tubular case 40.

EFFECT: higher tightness, fine adjustment.

23 cl, 12 dwg

Hydraulic damper // 2457375

FIELD: machine building.

SUBSTANCE: proposed device comprises hollow case accommodating hydraulic cylinder to make working fluid chamber. Hydraulic cylinder piston and rod are arranged to produce piston and rod ends. Damping device is arranged between case and cylinder and furnished with cover coupled with structural element accommodating restrictor and safety valve to communicate said piston and rod ends with said chamber. Cover has annular groove with seal fitted therein and is arranged to make drain chamber communicated with aforesaid chamber. Annular groove with support and sealing elements fitted therein is arranged at structural element on rod side. Safety valve is made up of plunger with flanges and cylindrical guide housing locking element to move relative plunger flange for contact with seat arranged on structural element for communication of rod en with drain chamber and, further, with aforesaid chamber. Cover seal is made up of sealing scraper. Annular grooves in cover and structural elements are open toward drain chamber wherein adjusting washer with annular ledge is arranged to lock sealing scraper. Said locking element has toroidal grooves on working fluid flow path at safety valve open.

EFFECT: simplified design, expanded operating performances.

4 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: pneumatic suspension contains rubber-cord casing (1) with cover (2) forming main working cavity (3), additional cavity (4) and partition (5) positioned between them. On partition (5) there is secured a cylinder with the central axial orifice inside of which there is installed valve device (6). A shaped partition with an opening on a side facet is made inside the cylinder. At the side of the cylinder there is arranged winding of an electro-magnet covered with a cover and connected to control system (7) of the valve device. The valve device consists of a hollow shut-off element in form of a cube controlled with the electro-magnet and shutting-off the opening.

EFFECT: increased reliability of suspension operation at impact actions.

3 dwg

Hydraulic damper // 2409777

FIELD: machine building.

SUBSTANCE: damper consists of case, of enclosed in it cylinder, of rod installed in cylinder, of stop and piston with relief orifices arranged successively on rod, and of valve unit made as packages of disks of various diametre, upper of which interacts with stop. The stop has circular grooves on external surface, whereon there are loosely fit compressed disks of the valve unit; notably, the package of disks of smaller diametre interacts with the end of the grooving, while the package of the disks of bigger diametre interacts with the end of the piston. On the circular working face at the upper end of the piston there is installed the working package of flexible disks centred along external diametre in the central cavity of the fixed cover, positioned in side slots of the rod. The spring-loaded valve is loosely fit with its internal diametre on external surface of the rod, while with its lower end it overlaps internal diametre of the package of the flexible disks, thus facilitating a calculated gap between the lower end of the valve and the central stop of the piston.

EFFECT: increased stability of rebound valve operation.

4 dwg

Damper // 2408804

FIELD: machine building.

SUBSTANCE: damper consists of cylinder chamber filled with fluid, of piston installed inside cylinder chamber, of rod connected to piston and of accumulator. The accumulator facilitates generation of damping force produced by the piston rod due to fluid flow from the side of compression in the cylinder chamber. One coil of spiral damping groove is formed on internal periphery of the cylinder chamber within the ranges of piston stroke. Width of the damping groove is constant along its whole length. Depth of the damping groove is gradually diminishes along the spiral in the direction whereto the piston rod is pushed out. The length of the piston along axial line is less, than pitch of the damping groove.

EFFECT: simplified design and more efficient control of damping force of damper.

6 cl, 7 dwg

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry, particularly to automotive shock absorbers. Proposed shock absorber comprises casing, cylinder, compensating chamber communicating, via throttling orifices, with the cylinder chamber, rotary controlled-from-outside ring to vary throttling orifice cross section, push rod, piston with bypass valve and blow-back valve, compression spring and guide bushing. Aforesaid rotary ring is fitted in the rod end and fixed to the compression spring end. The spring other end faces the piston and is fastened to the push rod. Ring surface in contact with the throttling orifice surface have various-cross section calibrated orifices. Turning the push rod in the guide bushing allow the channels to form, together with throttling orifices, through orifices with different cross section area.

EFFECT: increased shock absorber damping ability, possibility to adjust aforesaid ability.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: invention relates to automotive machine building, particularly, to automotive cushioning systems. The proposed shock absorber comprises hydraulic cylinder filled with working fluid and accommodating piston and rod, and hydraulic accumulator. The rod lower part is furnished with radial throttling orifices and spring-loaded control plunger with edge covering aforesaid orifices. The said radial throttling orifices are spaced along the rod length so that the said control plunger jumps the orifices in turn, thus gradually varying the total flow section. The control plunger is fitted in the piston, outside the working fluid flows, and can deviate from its normal position only under gravity.

EFFECT: higher comfort and controllability of vehicle in running over irregular road coat.

3 dwg

FIELD: automotive industry.

SUBSTANCE: controlled hydraulic shock absorber comprises telescopic hydraulic two-tube shock absorber. The rod of the shock absorber is made of a hollow rod provided with the flange having a groove for roller thrust bearing and vertical slots from the other side. The hollow of the rod receives the hollow rod of by-pass valve for permitting vertical movement. The top section of the rod is provided with trapezium right thread, and the bottom section is provided with the stop for the spring of the valve. The driven pinion is screwed on the threaded part of the rod of the by-pass valve. The bottom of the driven pinion abuts against the roller thrust bearing that is mounted in the groove in the flange of the hollow rod. The second driven pinion is screwed on the threaded part of the valve rod. The top side of the pinion abuts against the roller thrust bearing. The third roller thrust bearing is interposed between the driven pinions. The driven pinions engage the driving gears mounted on the shaft of the electric motor. The control unit is connected with the electric motor and receives the signal from the pickups of suspension vibration and velocity pickup.

EFFECT: improved shock absorbing.

FIELD: transport engineering.

SUBSTANCE: invention can be used in suspensions of vehicles. proposed hydraulic damper consists of reservoir with eye plate, cylinder with intake valve, piston with relief valve of extension/rebound - compression stroke, rod provided with throttling hole and return valve, guide with adjustable throttling hole and set of guides and sealing cups and rings, and upper eye plate. Ball bearings are installed in eye plates. Guide and cover are assembled into one base part - guide, in which sealing cups and rings, guide polymeric rings and needle are installed. Said needle is designed to adjust resistance at throttling mode of extension/rebound stroke directly on test stand without disassembling of said damper. Damper contains additional polymeric ring installed in scraper. Said ring prevents contact of chromium coating of rod with metal of scraper and getting of hard foreign finely divided particles into sealing unit.

EFFECT: improved serviceability of hydraulic telescopic damper under unfavorable conditions, provision of convenience in its adjustment.

8 dwg

Shock absorber // 2288387

FIELD: transport mechanical engineering.

SUBSTANCE: shock absorber can be used as hydraulic telescopic shock absorber for transportation vehicles, mainly for rail rolling stock. Non-differential-type shock absorber has reservoir, cylinder with bottom, which is mounted coaxially inside the reservoir to form recuperative cavity. Cylinder has damper and back and safety valves. Piston, provided with damper and compression and straining strokes safety valves, is disposed in cylinder; the damper is mounted onto recess of rod and it is connected with thread. There is also guide with opening for letting rod pass. The guide closes cylinder and reservoir. Shock absorber is provided with compression and straining stokes overflow valves which valves have static characteristics corresponding to inclination of operational characteristic of shock absorber to kink point. Onto cylindrical surface of piston at its both ends there are pairs of opposite flats, which are opened at ends of piston; pair of through holes is made in perpendicular to plane of flats. One pair goes through spring cavities of overflow and safety valves of straining stroke, and the other one goes through spring cavities of overflow and safety valves of compression stroke.

EFFECT: improved reliability of operation.

3 cl, 4 dwg

FIELD: machine building.

SUBSTANCE: damper comprises cylinder with piston and hollow rod. Piston is provided with L-shape channels. Spherical body of revolution displaces in said rod. Rod cavity consists of different-diameter intercommunicated channels. Said channels are arranged stepwise along rod length. Smaller-diameter channel is located at push rod top while larger-diameter channel is located at attachment of piston to rod.

EFFECT: higher efficiency of control.

4 dwg

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