Adjustable gas spring, height adjustable support with gas spring and furniture with height adjustable support


A47B9/10 - with vertically-acting fluid cylinder

FIELD: machine engineering.

SUBSTANCE: table (101) contains a table top and supports (104, 105). The lower supporting element and upper supporting element are movable relative to each other. An adjustable gas spring comprises a gas spring section (91, 92), a gas accumulator. The gas accumulator and the gas spring section are fluidly connected to each other by connecting means (94). It is possible to adjust by equalizing the pressure by the gas accumulator and/or by external pressure. At least one synchronizing means (106, 107) synchronizes the adjustment cooling fluid of the table supports. One of supports is equipped with adjustable gas spring.

EFFECT: expanded range of operating means.

15 cl, 5 dwg

 



 

Same patents:

Pneumatic spring // 2535380

FIELD: machine building.

SUBSTANCE: invention relates to machine building. A pneumatic spring includes container (1), installed in it stock (4) with piston (6) and sealing element (5) of the stock. The piston creates in the container the above piston (8) and under piston (9) cavities. The piston has a set of circular grooves on side surface. In some grooves the O-rings are installed, in other grooves - piston hydraulic seal. The piston has first groove (7) and additional ring groove (21). Each groove has: fluid chamber (13, 24), resilient cylindrical sleeve (10, 22), bushing (11, 25), and valve (19, 30) to charge the fluid chamber. Each fluid chamber is connected with channels (14, 27) with ring groove (15, 28) with piston hydraulic seal. Each bushing locks the elastic cylindrical sleeve in the groove and has set of through holes (12, 26) on the side surface. The through channel (20) connects the above piston and under piston cavities of the pneumatic spring.

EFFECT: decreasing of the probability of breakdown under impact loads.

1 dwg

Pneumatic spring // 2531795

FIELD: machine building.

SUBSTANCE: invention refers to machine building industry. A pneumatic spring includes container (1), stock (4) with piston (6) and sealing element (5) of the stock. Piston (6) forms above-piston (7) and below-piston (8) cavities in container (1), which are connected via through channel (11). Piston (6) is provided on its side surface with a set of annular grooves with sealing rings (9) and two internal annular grooves (12, 13). One internal annular groove (12) is interconnected with above-piston cavity (7) by means of two opposite check valves (20, 21). The other internal annular groove (13) is connected to the below-piston cavity (8) by means of two other opposite check valves (22, 23). Both internal annular grooves (12, 13) are interconnected via channels at least with one of its annular groove (15, 18) on side surface of piston (6). In each of such grooves there is elastic piston ring (16, 19) and an expander in the form of a gaseous phase.

EFFECT: achieving reduction of probability of breaks-through at impact loads due to abrupt increase of forces of resistance to movement of the piston on ends of both strokes acting near breakthrough zones.

1 dwg

Pneumatic spring // 2526544

FIELD: machine building.

SUBSTANCE: pneumatic spring comprises thin-wall cylinder (1) to accommodate rod (2) with its seal (3) and piston (4) to make head end chamber (6) and rod end chamber (7). Said cylinder (1) has lengthwise cut-out (8) made over its entire length and is fitted coaxially in body (9). Piston (4) has through channel (10). Two air chambers (11, 12) are arranged between cylinder (9) body and thin-wall cylinder (1) walls to envelop said cylinder (1) in zones of said head end chamber (6) and rod end chamber (7). Air chamber (11) is connected via channels (13) with head end chamber (6). Air chamber (12) is connected via channels (14) with rod end chamber (7).

EFFECT: ruled out puncture at impact loads.

2 dwg

Adaptive bumper // 2506471

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Bumper consists of polyurethane body to accommodate circular chambers. Metallic fastening plates are secured to said body from below and from above. Mounting union is attached to lower fastening plate by threaded joint to secure adaptive bumper to bearing structure and to feed compressed air into bumper central chamber.

EFFECT: permanent stiffness in mounting different-weight assemblies, automation variation of stiffness.

3 dwg

Gas spring // 2489621

FIELD: machine building.

SUBSTANCE: gas spring includes slide (2) located inside cylinder (1) housing. Guide sleeve (3) has an axial section at the main end section of cylinder (1) housing with the passage through which slide (2) is installed. Dust-proof seal (4) has projection (4a) being in sliding contact with slide (2). End seal (1b) at an open end section of cylinder (1) housing is in contact with an external end of guide sleeve (3). Dust-proof seal (4) is built inside guide sleeve (3) as its integral part on its external end section with possibility of being moved of floated in radial direction inside guide sleeve (3).

EFFECT: higher sealing reliability.

4 cl, 5 dwg

FIELD: machine building.

SUBSTANCE: pneumatic damper consists of case and hollow piston forming closed working volume for working medium and of fasteners of device or system. A free of fastening edge of the case is equipped with a device consisting of brake shoes and a drive pressing them at a proper moment to external surface of the hollow rod with required force. The first and the second additional closed volumes are communicated with working volume by means of valve units and are made as separate tanks of high and low pressure with devices of automatic inlet and outlet of working medium from closed working volume. A processor controls operation of devices for inlet and outlet and also operation of a drive of the brake shoes. By means of sensors the processor continuously tracks specified working parametres of the damper according to one or a rank of programmed damping characteristics. The tanks can be replaceable, while the processor is common for several dampers.

EFFECT: simplified design, upgraded quality of damping and reliable contact of vehicle wheel with road bed.

4 cl, 1 dwg

Gas-mechanic damper // 2409778

FIELD: machine building.

SUBSTANCE: damper consists of case, of cylinder enclosed in it, of rod with piston, of valve unit and also of valve of compression stroke in lower end. In an internal cavity of the case there is fixed an immobile elastic cylinder with ball bodies of small diametre arranged therein; these bodies envelope a tip. The tip has a front and back cones with rated angles of resistance. The tip is rigidly coupled with a hollow rod resting on the central guide. The sealed cavity between the elastic cylinder and internal surface of the case is continuously under rated gas pressure.

EFFECT: increased stability, service life and simplified design of damper.

1 dwg

FIELD: transport.

SUBSTANCE: spring comprises air spring 1, unloader vessel 2, compressor 3, pickup of pressure difference between unloader vessel 2 and air spring 1, unloader valve 7, pickup of position C of spring connection with receiver of oscillations relative to point A of spring connection with oscillation source, air pump 9 with outlet 10 and inlet 11 valves. Tube 5 communicates compressor 3 and unloader vessel 2. Tube 6 communicates air spring 1 and unloader vessel 1. Tube 12 communicates inlet valve 11 with intake tank 14. Tube 13 communicates unloader valve 7 with intake tank 14. Air spring 1 is additionally communicated via tubes 5 and 6 with unloader vessel 2 and compressor 3. Pressure difference pickup is communicated with sir spring 1, unloader vessel 2 and unloader valve 7. Position pickup 8 is communicated with compressor 3 and unloader valve 7.

EFFECT: ruling out transport facility body vibrations.

1 dwg

Pneumatic damper // 2406895

FIELD: machine building.

SUBSTANCE: device consists of pneumatic chamber with movable wall and throttle orifice in wall of pneumatic chamber. The throttle orifice is designed for throttling gas motion caused by motion of parts of the device in at least one direction of motion subjected to damping. The device consists of valve arrangement with a valve element suspended by means of a flexible elastomer suspension restricting the throttle orifice. At pressure rise it increases the throttle orifice between sides of the valve arrangement owing to elastic extension of the elastomer suspension. The valve element is made as a whole with the flexible elastomer suspension.

EFFECT: simplified design of pneumatic damper.

9 cl, 15 dwg

FIELD: machine building.

SUBSTANCE: pneumatic spring consists of tank (1), and of rod (4) with piston (6) and packing element (5) of rod (4) installed therein. Piston (6) forms above-piston (8) and sub-piston (9) cavities in the working cavity of tank (1). Piston (6) has a set of circular grooves (15) on side surface. Packing rings (18) are positioned in one grooves (15), while other grooves are filled with liquid packing. Cylinder cartridge (10) and sleeve (11) with through orifices (12) on side surface are installed inside recess (7). Chamber for liquid (13) communicates with grooves (15) on side surface of piston (6) by means of channels (14). Fixture element (16) with the central orifice fixes elastic cylinder cartridge (10) and sleeve (11) in recess (7). Additional valve (17) on piston (6) from the side of rod (4) charges chamber (13) with liquid.

EFFECT: raised efficiency of damping oscillations and reliability of pneumatic spring operation under continuous high loads.

1 dwg

Universal table // 2094007
The invention relates to office equipment, in particular to the tables, which can be widely used for various devices, equipment storage, equipment for various jobs engineers, engineers, installers and t

FIELD: machine engineering.

SUBSTANCE: table (101) contains a table top and supports (104, 105). The lower supporting element and upper supporting element are movable relative to each other. An adjustable gas spring comprises a gas spring section (91, 92), a gas accumulator. The gas accumulator and the gas spring section are fluidly connected to each other by connecting means (94). It is possible to adjust by equalizing the pressure by the gas accumulator and/or by external pressure. At least one synchronizing means (106, 107) synchronizes the adjustment cooling fluid of the table supports. One of supports is equipped with adjustable gas spring.

EFFECT: expanded range of operating means.

15 cl, 5 dwg

FIELD: designs of dampers.

SUBSTANCE: the invention is pertaining to the field of production of dampers, in particular, to the designs of dampers. The resiliently-frictional damper consists of a cylinder mounted with its base on the surface accepting the impact loadings and a crown cylinder entering with its split end into the cylinder, on the other end of which there is a plug with a sliding valve contacting with the surface transmitting the impact loadings. Between the cylinder and the crown cylinder there is a mounted resilient component made out of the urethane material. The resilient urethane component is made in the form of a pipe with one blanked off end fixed on the bottom of the cylinder with the help of a liquid filled threaded joint, the open end of which is fixed between the crown cylinder butt surface and the plug. The inner surface of the resilient urethane component has a wave shape. The technical result of the invention is development of the damper possessing a simple and reliable design, a stable characteristic at reception of the impact loadings, not dependent on a degree of the frictional surfaces wearing.

EFFECT: the invention ensures development of the damper possessing a simple and reliable design, a stable characteristic at reception of the impact loadings, not dependent on a degree of the frictional surfaces wearing.

4 cl, 1 dwg

FIELD: means for damping vibrations.

SUBSTANCE: device comprises positively buoyant member arranged on the surface of liquid. The member is made of the flat spiral spring whose diameter is larger than at least one of the sizes of the vessel when the spring is not deformed. The outer end of the flat spiral spring is free. The inner end of the spring is secured to the round flat float positioned in the central section of the spring. The outer side of the turn of the spring is provided with coating made of flexible material. The flat spiral spring is set in the vessel with interference.

EFFECT: improved damping and simplified structure.

2 dwg

FIELD: transport.

SUBSTANCE: air spring assembly comprises flexible sleeve secured to air spring piston assembly. Air spring piston assembly comprises outer shell with face and side walls and structural insert fitted therein. Said structural insert consists of multiple inserts. Said inserts have central sections that, when jointed together, form central part of said structural insert, and support walls running from central sections towards outer shell sidewall. To secure structural insert to outer shell, said inserts are furnished with clips while outer shell face wall has mating holes. Said inserts can be made from plastic or metal sheet steel.

EFFECT: higher strength and ease of manufacture.

12 cl, 25 dwg

FIELD: machine building.

SUBSTANCE: pneumatic spring consists of tank (1), and of rod (4) with piston (6) and packing element (5) of rod (4) installed therein. Piston (6) forms above-piston (8) and sub-piston (9) cavities in the working cavity of tank (1). Piston (6) has a set of circular grooves (15) on side surface. Packing rings (18) are positioned in one grooves (15), while other grooves are filled with liquid packing. Cylinder cartridge (10) and sleeve (11) with through orifices (12) on side surface are installed inside recess (7). Chamber for liquid (13) communicates with grooves (15) on side surface of piston (6) by means of channels (14). Fixture element (16) with the central orifice fixes elastic cylinder cartridge (10) and sleeve (11) in recess (7). Additional valve (17) on piston (6) from the side of rod (4) charges chamber (13) with liquid.

EFFECT: raised efficiency of damping oscillations and reliability of pneumatic spring operation under continuous high loads.

1 dwg

Pneumatic damper // 2406895

FIELD: machine building.

SUBSTANCE: device consists of pneumatic chamber with movable wall and throttle orifice in wall of pneumatic chamber. The throttle orifice is designed for throttling gas motion caused by motion of parts of the device in at least one direction of motion subjected to damping. The device consists of valve arrangement with a valve element suspended by means of a flexible elastomer suspension restricting the throttle orifice. At pressure rise it increases the throttle orifice between sides of the valve arrangement owing to elastic extension of the elastomer suspension. The valve element is made as a whole with the flexible elastomer suspension.

EFFECT: simplified design of pneumatic damper.

9 cl, 15 dwg

FIELD: transport.

SUBSTANCE: spring comprises air spring 1, unloader vessel 2, compressor 3, pickup of pressure difference between unloader vessel 2 and air spring 1, unloader valve 7, pickup of position C of spring connection with receiver of oscillations relative to point A of spring connection with oscillation source, air pump 9 with outlet 10 and inlet 11 valves. Tube 5 communicates compressor 3 and unloader vessel 2. Tube 6 communicates air spring 1 and unloader vessel 1. Tube 12 communicates inlet valve 11 with intake tank 14. Tube 13 communicates unloader valve 7 with intake tank 14. Air spring 1 is additionally communicated via tubes 5 and 6 with unloader vessel 2 and compressor 3. Pressure difference pickup is communicated with sir spring 1, unloader vessel 2 and unloader valve 7. Position pickup 8 is communicated with compressor 3 and unloader valve 7.

EFFECT: ruling out transport facility body vibrations.

1 dwg

Gas-mechanic damper // 2409778

FIELD: machine building.

SUBSTANCE: damper consists of case, of cylinder enclosed in it, of rod with piston, of valve unit and also of valve of compression stroke in lower end. In an internal cavity of the case there is fixed an immobile elastic cylinder with ball bodies of small diametre arranged therein; these bodies envelope a tip. The tip has a front and back cones with rated angles of resistance. The tip is rigidly coupled with a hollow rod resting on the central guide. The sealed cavity between the elastic cylinder and internal surface of the case is continuously under rated gas pressure.

EFFECT: increased stability, service life and simplified design of damper.

1 dwg

FIELD: machine building.

SUBSTANCE: pneumatic damper consists of case and hollow piston forming closed working volume for working medium and of fasteners of device or system. A free of fastening edge of the case is equipped with a device consisting of brake shoes and a drive pressing them at a proper moment to external surface of the hollow rod with required force. The first and the second additional closed volumes are communicated with working volume by means of valve units and are made as separate tanks of high and low pressure with devices of automatic inlet and outlet of working medium from closed working volume. A processor controls operation of devices for inlet and outlet and also operation of a drive of the brake shoes. By means of sensors the processor continuously tracks specified working parametres of the damper according to one or a rank of programmed damping characteristics. The tanks can be replaceable, while the processor is common for several dampers.

EFFECT: simplified design, upgraded quality of damping and reliable contact of vehicle wheel with road bed.

4 cl, 1 dwg

Gas spring // 2489621

FIELD: machine building.

SUBSTANCE: gas spring includes slide (2) located inside cylinder (1) housing. Guide sleeve (3) has an axial section at the main end section of cylinder (1) housing with the passage through which slide (2) is installed. Dust-proof seal (4) has projection (4a) being in sliding contact with slide (2). End seal (1b) at an open end section of cylinder (1) housing is in contact with an external end of guide sleeve (3). Dust-proof seal (4) is built inside guide sleeve (3) as its integral part on its external end section with possibility of being moved of floated in radial direction inside guide sleeve (3).

EFFECT: higher sealing reliability.

4 cl, 5 dwg

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