Bicycle pedal

FIELD: transport.

SUBSTANCE: pedals are supplied with devices fastening footwear and are installed on cranks with possibility to automatically change crank length. Pedal frame (1) contains rectangular horizontal plate (2) having on its upper surface devices (5, 6) fastening bicyclist footwear and girdle (3) on one of its longitudinal edges with pedal axle (4) secured on crank. Plate (2) is connected with girdle (3) so that its upper surface is located below pedal axle (4) at distance (a) and axis (7) of footwear support on plate (2) of pedal located in frontal plane crossing bicyclist metatarsus of hallux when bicyclist revolves pedal is placed in front of pedal axle (4) at distance (b) so that axis (7) of footwear support circumscribes circle with centre (O') and radius (r') displaced below at distance (a) and at distance (b) forward in respect of circle with centre (O) circumscribed by pedal axle (4), where (O) is axis of carriage unit with radius (r).

EFFECT: acceleration of dead points passing and increase of torque.

17 cl, 16 dwg

 

The invention relates to a pedal bike, designed for both road and mountain bikes, and allows to increase the efficiency of pedaling.

Among the structures rental are well-known pedals, containing essentially rectangular case pedal made with the possibility of free rotation around an axis, called the axis of the pedal and configured to secure the free end of the connecting rod, and the said body of the pedal is mounted with one of its sides and has tulips and strap for the foot. Thus, the cyclist places the toe of his Shoe on the body of the pedal in tulips to transfer forces from the foot to the body of the pedal by pressing his foot on the body of the pedal, and by tightening up when picked up legs cyclist thus, to create a continuous movement of the pedal. For example, in French patent 2.432.970 described tulips bike, containing, on the one hand, the housing made in the form of an oblong plate, bent forward in the middle part for the formation of the curved part when the first and second end parts, respectively, extend backward from the two ends of the curved part of the plate, and on the other hand, the buckle located on the free end of the first end portion and designed to hold the strap tulips.

Cu is IU, well-known pedal called automatic pedals and containing a capture connected to the sole of the Shoe of the cyclist and made interoperable with locking element located on the upper surface of the pedal, which is similar to the above construction, essentially rectangular case pedal made with the possibility of free rotation around an axis, called the axis of the pedal and attached to the free end of the rod.

These automatic Bicycle pedals typically include front fixing element, representing a retainer forming a stop for fixing the front ledge of the castle, mounted on the sole of the Shoe of the cyclist, as well as locking the rear protruding element formed by a hinged clamp for fixing the rear ledge of the castle on the Shoe of the cyclist. The back lock is configured to rotate around a transverse axis and is pre-biased by means of elastic elements in the direction of the locked position, while maintaining mobility under the influence of locks on the Shoe of the cyclist between an open position to allow insertion of the anterior and posterior projections of the castle in the retention arm, and a closed locked position, in which the castle on the Shoe is connected to the pedal. These elastic the e elements, consisting of cylindrical springs and hinged rear latch can be displaced under the influence of efforts against the force of the spring, in the direction of the open position to release the locking plate of the grip formed between the retainers. Hinged rear latch is configured to rotate under the action of the rear ledge of the castle on the Shoe of a cyclist, which interacts with vertical walls hinged rear retainer forming Cams, which during rotation of the Shoe inward or outward for connection or disconnection of the Shoe and pedal shift lock back.

All of these devices, although providing satisfactory connection of the Shoe of the cyclist to pedal, not effectively transmit the energy generated by the cyclist on the wheel.

One of the aims of this invention is to eliminate this drawback by creating a pedal bike simple design, which is cost-effective and efficiency-enhancing pedaling cyclist.

With this purpose in accordance with this invention features a pedal of a Bicycle, comprising a housing pedal, which is essentially a rectangular horizontal plate with its upper surface e the cops to lock the Shoe of a cyclist and on one of its longitudinal edges of the housing containing the axle of the pedal, designed for attachment to the free end of the connecting rod, which is characterized by the fact that this plate is connected with the yoke so that its upper surface is located below the axis of the pedal at a distance a, and the bearing axis of the Shoe on the platform pedals, which lies in the frontal plane passing through the metatarsal of the big toe biker, when the last pedalling passes in front of the pedal spindle at a distance b so that the axis of the bearing pedals describes a circle with center O′ and a radius of r′shifted by distance and down and the distance b is forward with respect to a circle with centre O, described by the axis of the pedal, where the center O is the axis Dobby unit to the Bicycle frame, and radius r, and the fact that the fixation means include, on the one hand, the front locking mechanism designed to interact with the front part of the castle, connected to the sole of the Shoe of the cyclist, and on the other hand, active rear locking mechanism, designed for interaction with the back of the castle on the Shoe, and a movable rear locking mechanism is moved under the influence of the rear part of the castle on the Shoe, called fixed, open position to insert or remove the rear h is the terrain of this castle on the Shoe, and back to return to the locked position under the influence of the efforts of the elastic elements.

On the other hand, there are pedals that have a bearing axis of the Shoe on the plate pedal coincides with the axis of the pedal, and the said bearing axis passes below the axis of the pedal at a distance and in front of the pedal spindle at a distance b, thereby increasing the lever arm of the pedal when the crank is leading, and the reduction mentioned lever when the rod is the slave.

Other advantages and characteristic features become clearer from the following description, made in the form of not limiting the scope of the invention example a Bicycle pedal according to this invention and with reference to the accompanying drawings, on which:

- Figure 1 is a perspective view of the Bicycle pedal according to this invention,

- Figure 2 is a schematic illustration of the movement of the pedal, made according to this invention, during the rotation of the connecting rod,

- Figure 3 is a longitudinal section of a Bicycle pedal according to this invention, shown in figure 1, in position, when the front part of the castle on the Shoe of a cyclist inserted in front retainer pedal

- Figure 4 is a longitudinal section of a Bicycle pedal according to this invention, shown in figure 1, in position, when the back cha is th castle on the Shoe of a cyclist is inserted in the hinge of the rear latch pedal

- Figure 5 is a longitudinal section of a Bicycle pedal according to this invention, shown in figure 1, with the lock on the Shoe of the cyclist, recorded in front and rear retainer pedal

- Fig.6 is a perspective view of the first alternative implementation of the Bicycle pedal according to this invention,

- Fig.7 is a side view of a second alternative implementation of the pedal according to this invention, having tulips,

- Fig is a top view of an alternative implementation of the Bicycle pedal according to this invention, shown in Fig.7,

- Figure 9 is a perspective view of a third alternative implementation of the Bicycle pedal according to this invention,

- Figure 10 is a perspective view of a castle on the Shoe of the cyclist, designed to interact with the front latch Bicycle pedal in accordance with an alternative embodiment of the invention, shown in Fig.9,

- 11 represents a view in longitudinal section of a rod equipped with a pedal of a Bicycle in accordance with another alternative embodiment of the present invention,

- Fig is a perspective view of an alternative implementation of the pedal on this izobreteny the rod,

- Fig is a view of longitudinal section of the rod with the pedal according to this invention, shown in Fig,

- Fig is a side view of the last alternative implementation of the Bicycle pedal according to this invention,

- Fig is a longitudinal section of an alternative implementation of the pedal shown in Fig,

- Fig is a schematic illustration of the trajectory of the pedals in accordance with an alternative embodiment of the invention and shown in Fig and Pig during the rotation of the rod.

Referring to Figure 1, the pedal of a Bicycle in accordance with the invention includes a housing 1 pedal, which is essentially a rectangular horizontal plate 2, having at one of its ends to the yoke 3, containing the axis 4 of the pedal, designed for attachment to the free end of the connecting rod not shown in the drawing, and on the upper surface of the front 5 and rear 6 means for fixing the Shoe of the cyclist.

It goes without explanation that the axis 4 pedals installed on ball bearing, located in the holder 3 of the housing 1 pedals to ensure rotation of the horizontal plate 2 around the axis 4 of the pedal during the rotation of the pedals.

Plate 2 is connected to a holder 3 in such a way that its top surface location is on the lower axis 4 pedals at a distance and which is shown in figure 1, the dash-dotted line is the axis 7 of the support Shoe on the plate 2 pedals, which lies in the frontal plane passing through the metatarsal of the great toe biker, when the latter rotates the pedal is located in front with respect to the axis 4 of the pedal at a distance b. Thus, this axis 7 of a support Shoe on the plate pedal describes as shown in figure 2, when the rotation of the pedals in a clockwise direction, as shown by the arrow f, the circle With′ center′ and a radius of r′shifted by distance and down and the distance b is forward with respect to a circle with centre O, which describes the axle of the pedal, where the center O is the axis Dobby unit to the Bicycle frame with radius r.

It should be noted that the curve C corresponds to the movement of the pedals of known construction, which is a pedal, in which the upper surface of the plate and the axis 7 of the support Shoe on the plate 2 pedals, coincides with the axis 4 of the pedal attached to the remote free end of the rod. In addition, it should be noted that near the upper dead point, which is near the top of the curve′this axis 7 of a support Shoe on the plate 2 pedal is in front with respect to an axis of a support Shoe for well-known pedal that provides a more rapid passage of the upper dead point. In addition, at the upper front quadrant, and most of the lower front quadrant of the curve With′ axis 7 of a support Shoe on the plate pedal is located in front of the axis of the bearing shoes on the plate is known pedals. Thus, there is a greater lever arm than in the known pedal, making it easier pedaling cyclist and contributes to the production of large moments at equal applied to the pedal effort. And finally, near the bottom dead point, which is the point of the passage axis of the bearing shoes on the plate 2 pedal at the lowest point of the curve With′similarly the upper dead point, the axis 7 of the support Shoe on the plate of the pedal 2 is located in front of the axis of support for the famous pedal, it does not change the efficiency of rotation of the pedal according to this invention, since between the lower dead point and the upper dead point the cyclist does not make virtually no effort to pedal.

As shown in figure 1, Figure 3, Figure 4 and Figure 5, the pedal of a Bicycle according to this invention has on the upper surface of the plate 2 front 5 and rear 6 tools for fixing shoes 8 cyclist (Fig.3-5). These means 5 and 6 for fixing shoes 8 include, on the one hand, the cutting mechanism 5 fixation, designed for interaction with the front part of the castle 9 connected to the sole 10 of the Shoe 8 cyclist, and on the other hand, active rear locking mechanism 6, which is designed for engagement with the rear part of the lock 9 on the Shoe 8 and the movable rear locking mechanism 6 is arranged to move under the influence of effort on the part of the rear part of the lock 9 on the Shoe 8, called locked in the open position to insert or remove the rear part of the lock 9 on the Shoe 8, and to return to the locked position under the influence of effort on the part of the elastic elements, which will be described later.

The cutting mechanism 5 fixation is a neck 11, is made in the front part of the upper surface plate 2 and in which is placed the clamp 12, slightly protruding beyond the upper surface of the plate 2 and intended for the introduction of means for locking tongue 13 protruding from the front of the lock 9 on the Shoe of a cyclist 8. This latch 12 is, for example, U-shaped metal element, the legs of which are attached to the inner walls of the recess 11 in the top surface of the plate 2, so that the base of this U-shaped element extends essentially parallel to the top surface of the plate 2, speaking slightly from the last.

In addition, the movable rear retaining element 6 represents a second latch 14, hinged to the transverse axis 15 located on the rear side of the plate 2. Mentioned transverse axis 15 extends parallel to the axis 4 of the cage 3 pedals, the bottom of which rests against the spherical bearing 16 located at the free end of the rod 17 extending in PR the longitudinal direction under transverse axis 15 of the hinge retainer 14. This rod 17 is connected to the plunger 18 that slides within the longitudinal cavity 19, made in the plate 2 and open at the rear end of the said plate 2, and referred to the plunger 18 is supported by a cylindrical spring 20 located in said longitudinal cavity 19. The rod 17 is preferably a threaded rod forming a connection with the thread 21, made in the plunger 18 sliding along the longitudinal cavity 19. In addition, the free end of the swivel bearing 16 has a head 22 of the screw, which is a hole 23 made in the lower part of the retainer 14 and facing the back surface. Rotary support 16 rests in the notch 24, the radius of curvature of which is equal to the radius of the swivel bearing 16.

The following describes attaching a Shoe to a Bicycle pedal according to this invention with reference to Fig.3-5.

The tongue 13 extending from the front of the lock 9 on the Shoe 8 is inserted into the slot 11 until such time as the said tongue 13 will not go under the front clamp 12 (Fig 3). Then the rider presses the heel down until the rear part of the lock 9 on the Shoe 8, mainly with the bevel rests on the retainer 14 of the second rear mechanism 6 fixation made with the possibility of turning the latter around the axis 15. It should be noted that when the latch 14 is rotated, the rotary bearing 16 causes the rod 17 plunger 18 in motion in a straight line in the longitudinal cavity 19, compressing coil spring 20 (Figure 4). Then if you continue pressing the heel lock down 9 rests on the upper surface of the plate 2 pedals and the rear 9 falls under the retainer 14 of the rear fixation mechanism 6, which returns to its initial position, called fixed, under the force of the cylindrical spring 20, which moves the plunger 18 and the rod 17, the free end of which is mounted a rotary bearing 16, turning the latch 14 to until it reaches its initial locked position. Usually the introduction of the castle 9 between the front mechanism 5 fixation and posterior fixation mechanism 6 is performed by the rotation of the foot at the ankle joint, releasing the rear 9 of the rear mechanism 6 engages.

In accordance with the first alternative embodiment of a Bicycle pedal according to this invention, shown in Fig.6, the plate 2 includes a movable plate 25 on its upper surface, is made with a possibility of longitudinal slip. On its upper surface are front 5 and rear 6 means for fixing the Shoe of the cyclist, such as described above for the adjustment of the longitudinal position of the mentioned front 5 and rear 6 means for fixing the Shoe to the Shoe size of a cyclist or also to t the th, to adjust the distance b from the axis 4 of the pedal to the axis 7 of the support Shoe on the plate 2 pedals. The upper surface of the plate 2 has a U-shaped cross section with a longitudinal groove 26, in which slides a U-shaped cross section with a longitudinal guideway 27 located below the movable plate 25 containing the front 5 and rear 6 locking mechanisms. Plate 2 also includes four longitudinal oblong holes 28 located on both sides of the longitudinal groove 26, in which are inserted the bolts 29, designed for installation into the corresponding threaded holes made in the bottom surface of the movable plate 25.

Of course, the platform 2 may have only two longitudinal oblong holes 28 without going beyond the scope of the invention.

In accordance with a second alternative embodiment of a Bicycle pedal according to this invention, shown in Fig.7 and Fig, plate 2 includes, as in the previous embodiment, on the upper surface of the sliding plate 25 made with the possibility of longitudinal slip. On its upper surface has means for fixing the Shoe of the cyclist. The upper surface of the plate has a longitudinal recess 30, an open front in which the movable plate 25 slides so that the upper surface of the said plate 25 is located flush with the upper surface of the plate 2. The longitudinal edges of the movable plate 25 are notched elements 31 for engagement with mating gear elements 32, performed on the longitudinal edges of the notches 30 of the plate 2 to provide a fixing plate 25 in the recess 30. Means for fixing the Shoe of the cyclist are tulips 33, forming one piece with the front part of the movable plate 25. In addition, to regulate the longitudinal position of the means for fixing the Shoe, combined with a movable plate 25, according to the size of the Shoe of the cyclist upper surface of the plate 2 mainly has a pointer 34, intended to align with digital labels 35, indicating the size of the Shoe of the cyclist and located on the upper surface of the movable plate 25 of the pedal.

In accordance with another alternative embodiment of the pedal according to this invention, shown in figures 9 and Figure 10, the cutting mechanism 5 fixing the pedal can be a pin 37, protruding vertically from the upper surface of the front plate 2 and includes retaining means on the upper end, formed by the flange 38. Mentioned pin 37 comes into the notch 39, made in the tongue 13, which protrudes from the front of the castle 9 shoes biker 8 and has a V shape, at the base of which is made essentially on okragly response cutout 40, the diameter of which is slightly greater than the diameter of the pin 37.

Of course, this holding means located at the upper end of the pin 37 may be a radial ribs without going beyond the scope of the invention.

In addition, it is obvious that the yoke 3 of the housing of the pedal can be connected to the free end of the rod 41 by means of the ball bearing 42 mounted on the free end of the said connecting rod 41, as shown in figure 11. When the holder 3 does not contain the axis 4 pedals mounted on ball bearing located in the ferrule 3.

In accordance with another embodiment of the pedal according to this invention, shown in Fig and Fig, the node 41 pedal/rod includes a belt 43 passing along the rod 41 between the drive pulley 44 connected with Dobby node to the Bicycle frame, and a driven pulley 45 which is connected with the yoke 3 pedals so that rotation of the rod 41 causes the rotation of the plate 2 pedal through the axle of the pedal. Driven pulley 45 is connected with the yoke 3 of the pedal by means of a cylindrical spring 46 located in an annular groove 47, made in the slave pulley 45 so that the axis of this spring is coaxial with the axis of rotation of the secondary pulley 45, and the ends of the cylindrical springs 46 are connected respectively to the slave pulley 45 and the yoke 3 pedals.

Of course, the Vedas, the range of the pulley 45 may be connected with the yoke 3 pedals by any resilient means, well-known specialists in this field of technology.

Preferably provides a protective cover 48, made with possibility of installation on the rod 41 to protect the belt 43, the lead 44 and the driven pulleys 45.

Finally, in accordance with the latest alternative embodiment of the pedal according to this invention, shown in Fig-16, the latter contains a movable plate 25, is made slidable in the longitudinal direction on the upper surface of the plate 2 pedals, and mobile platform 25 is equipped with a front 5 and rear 6 means for fixing the Shoe of the cyclist. This pedal also includes a connecting rod 49, the first end of which is made with the possibility of free rotation around the eccentric 50 of the holder 51, which is connected with the outer end of the rod 41, and the second end has a transverse axis 52 around which can freely rotate the front part of the movable plate 25 of the pedal and the rear plate 2 pedals can rotate freely around the axis of the free end of the rod 41 on ball bearing 53.

This arrangement enables the change of the distance b between the pedal spindle and the axle 7 of a support Shoe on the plate of the pedal during a complete revolution of the pedals during the rotation of the pedals. Thus, as shown in Fig, in the process of turnover pedal counterclockwise, as shown by arrows is th g, plate 2 pedal remains essentially horizontal during the turnover of the pedal, and the distance b between the pedal spindle and the axle 7 of a support Shoe on the plate of the pedal is increased in the front and rear upper quadrants, i.e. between positions in which the connecting rod 41 is located essentially horizontally and is directed forward and back, and then decreases in the front and rear of the lower quadrants. It should be noted that the distance b between the pedal spindle and the axle 7 of a support Shoe on the plate pedal is maximum when the pedal is essentially horizontally in the forward position, i.e. when the force applied by the leg of the cyclist, is also the maximum that provides more torque during the rotation of the pedals in comparison with the known pedals.

And finally, it goes without explanation that the examples are only illustrative and in no case do not limit the scope of the invention.

1. The pedal of a Bicycle, comprising the body of the pedal (1), which is an essentially rectangular horizontal plate (2) with its upper surface means (5, 6) for fixing the Shoe (8) cyclist, and at one of its longitudinal edges of the clip (3)containing the axis (4) pedal mounted on the free end of the rod (41), characterized in that the plate (2) is attached to about the IME (3) thus, that its upper surface is located below the axis (4) of the pedal at a distance (a)and the axis (7) bearing shoes on the plate (2) pedal, which lies in the frontal plane passing through the metatarsal of the big toe biker, when the latter rotates the pedal is located in front of the axis of the pedal at a distance (b) in such a way that the axis (7) bearing shoes on the plate pedal describes a circle with center (About′) and radius (r′)shifted by a distance (a) down and the distance (b) forward with respect to a circle with center (H), described by the axis (4) of the pedal, where the center (O) is the axis Dobby unit to the Bicycle frame and radius (r), as well as the fact that the means (5, 6) for fixing contain from one side of the front clamping mechanism (5), made with the possibility of interaction with the front part of the castle (9)connected to the sole (10) shoes (8) cyclist, and on the other hand, the movable rear locking mechanism (6), made with interaction with the rear part of the castle (9) shoes (8)and movable rear locking mechanism (6) is arranged to move under the influence of effort on the part of the rear part of the castle (9) shoes (8), called fixed, open position, allowing you to insert or pull out the rear (9) on the Shoe, and back to return to the fixed position on the impact of effort on the part of the elastic means (20).

2. The pedal according to claim 1, characterized in that the plate (2) has a movable plate (25) on its upper surface, is made slidable in the longitudinal direction, on the upper surfaces of which are means (5, 6) for fixing the Shoe of a cyclist (8) in order to adapt the longitudinal position mentioned means (5, 6) for fixing the Shoe (8) to the size of the Shoe of the cyclist or also in order to adjust the distance (b) between the axis (4) of the pedal and the shaft (7) bearing shoes on the plate of the pedal.

3. The pedal according to claim 2, characterized in that the plate (2) has at least two longitudinal openings (28), into which are inserted the two bolts (29), intended for installation in the two threaded holes made in the bottom surface of the movable plate (25).

4. The pedal according to claim 1, wherein the front clamping mechanism (5) is a cutout (11)made in the front part of the upper surface plate (2), and that contains the latch (12), slightly protruding from the upper surface of the plate (2)and the fact that the latch (13) protrudes from the front of the castle (9) shoes (8) of the cyclist.

5. The pedal according to claim 1, wherein the front clamping mechanism (5) is a pin (37), protruding vertically from the upper surface of the front plate (2) and containing the retaining means is o (38) on the upper end, as mentioned pin (37) enters the notch (39)made in the tongue (13)that protrudes from the front of the castle (9) Shoe of a cyclist (8) and has the shape of a letter V, the base of which is made essentially semicircular response cutout (40), the diameter of which is slightly greater than the diameter of the pin (37).

6. The pedal according to claim 5, characterized in that the retaining means (38) is a collar.

7. The pedal according to claim 5, characterized in that the retaining means (38) represent the radial ribs.

8. The pedal according to claim 1, characterized in that the movable rear fixing element (6) is a latch (14)is hinged to the transverse axis (15)located on the rear side of the plate (2), the lower edge of which rests in a spherical bearing (16)located at the free end of the rod (17)mounted in the longitudinal direction under transverse axis (15) of the hinge retainer (14)and rod (17) is connected with a plunger that slides within the longitudinal cavity (19)made in the plate (2) and open from the rear end of the said plate (2)and the said plunger (18) is supported by a cylindrical spring (20)located in said longitudinal cavity (19).

9. The pedal of claim 8, characterized in that the rod (17) is a threaded rod, which forms the connection with thread (21)made in the plunger (18), scorseseno longitudinal cavity (19).

10. The pedal according to claim 9, characterized in that the free end of the swivel bearing (16) has a head (22) of the screw, which is a hole (23)made in the lower part of the retainer (14) and extending to the back surface.

11. The pedal of claim 8, characterized in that the rotary bearing (16) rests on the notch (24), the radius of curvature of which is equal to the radius of the swivel bearing (16).

12. The pedal according to claim 2, characterized in that it includes means for changing the distance b between the axis (4) of the pedal and the shaft (7) bearing shoes on the plate of the pedal during a complete revolution of the pedals during the rotation of the pedals.

13. The pedal on item 12, characterized in that it comprises a connecting rod (49), the first end of which is made with the possibility of free rotation around the eccentric (50) of the casing (51), which is connected with the free end of the connecting rod (41)and the second end has a transverse axis (52)around which can freely rotate the front part of the movable plate (25), is made slidable in the longitudinal direction on the upper surface of the plate (2)and the rear part of the said plate (2) pedal can rotate freely around the axis of the free end of the connecting rod (41).

14. The pedal according to claim 1, characterized in that it includes a belt (43), passing along the rod between the drive pulley (44)connected with Dobby the frame, and a driven pulley (45)connected to the output with the yoke (3) pedal so that rotation of the rod (41) causes the rotation of the plate (2) around the axis (4) of the pedal.

15. Pedal through 14, characterized in that the driven pulley (45) is connected with the yoke (3) pedals with elastic means (46).

16. Pedal through 15, characterized in that the driven pulley (45) is connected with the yoke (3) of the pedal by means of a cylindrical spring (46)located in the annular groove (47)made in the slave pulley (45) so that the axis of this spring is coaxial with the axis of rotation of the secondary pulley (45), and the ends of the cylindrical spring (46) is connected respectively with the driven pulley (45) and a holder (3) pedals.

17. The pedal on item 16, characterized in that it comprises a protective cover (48), made with possibility of installation on the rod (41) to protect the belt (43), leading (44) and slave (45) pulleys.



 

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