KR20010026938A - Pedal of bicycle having instep cover - Google Patents

Abstract

PURPOSE: A bicycle pedal is provided to be conveniently used by actuating an instep support cover only through a simple manipulation of feet and supporting or decomposing an instep. CONSTITUTION: A pedal of a bicycle is comprised of a pedal shaft(2) is fixed on a crank arm of the bicycle; a pedal frame(10) installed to be freely rotatable around the pedal shaft; an instep support cover(20) freely movable between an instep support position for supporting the instep and an instep release position dislocated from the instep; a position converter for changing the position of the instep support cover between the instep support position and the instep release position by putting up and down the feet on the pedal frame; and a locking device for keeping or releasing the instep support cover in a state of being fixed at the instep support position. As the instep is firmly supported by the instep support cover, drive force is generated even when the pedal ascends. Thus, the forward drive force of the bicycle is continuously generated over the entire section of 360 degrees on both pedals so that a movement effect is improved.

Description

Bicycle pedal with foot cover {Pedal of bicycle having instep cover}

The present invention relates to a bicycle pedal, and more particularly, a bicycle pedal having a foot support cover that supports the instep during the rolling rolling motion of the pedal so that both pedals can continuously generate the forward driving force of the bicycle for 360 degrees. It is about.

In general, bicycle pedals are provided at the ends of pedal arms provided at both ends of a rotating shaft (crankshaft) of a driven sprocket connected to a chain by a driven sprocket wheel on the rear wheel side. When the forward movement force is generated by rolling downward, the other pedal rotates upward, so that the forward movement force of the bicycle can be continuously generated by rotating the pedals alternately on both sides.

Such a normal pedal cannot generate the forward driving force of the bicycle in the section in which the pedal rotates upward, and can generate the driving force of the bicycle only in the section in which the pedal rotates downward, and thus cannot increase the driving force of the bicycle. The effect will be less.

Therefore, by providing the foot support cover on the pedal, even when the pedal rotates upward, forward driving force is generated, which increases the driving power of the bicycle and at the same time increases the exercise effect (for example, Utility Model Notification 84- 836).

In other words, by fixing the L-shaped foot support cover to one side of the pedal, the horizontal portion of the foot support cover is configured to support the foot.

However, since the height between the upper surface of the pedal and the foot support cover is fixed, if the height between the upper surface of the pedal and the foot support cover is higher than the thickness of the passenger's foot, a clearance is formed between the foot and the foot support cover to firmly support the foot. As a result, forward driving force cannot be effectively generated. On the contrary, if the height is lowered, the foot can be firmly supported, but there is a problem that the foot is not easily inserted and removed between the pedal and the foot support cover.

On the other hand, the athlete's bicycle is also provided with a belt that binds the instep to increase the forward driving power of the bicycle. However, even with such a belt, it is possible to bind the instep firmly and to support it firmly, but it is difficult to apply it to a general bicycle because the binding and loosening of the belt is very cumbersome, and it is difficult to use it especially for a physically disabled person. It is also difficult to pull out a foot in an emergency, such as falling or an accident.

The present invention is to solve the conventional problems as described above, its purpose is to firmly support the instep so that both pedals can generate forward driving force 360 degrees across the country to increase the driving force of the bicycle and increase the exercise effect To provide a bicycle pedal.

It is another object of the present invention, the foot support cover is automatically operated by only a simple movement of raising and lowering the foot on the upper surface of the pedal and allowing the foot to be supported and released automatically, especially in the case of a physically disabled person. It is to provide a bicycle pedal that can be easily operated.

1 is a perspective view showing a bicycle pedal according to an embodiment of the present invention.

2 is an exploded perspective view showing the bicycle pedal of FIG.

3 is a cross-sectional view taken along line III-III of FIG. 1;

4 is an enlarged sectional view taken along line IV-IV of FIG. 1;

Figure 5 (a), (b) is a side view showing the operating state of the foot support cover in the bicycle pedal of the present invention.

Figure 6 (a), (b) is a sectional view of the main part showing the operating state of the locking means in the bicycle pedal of the present invention.

<Description of the code | symbol about the principal part of drawing>

2: Pedal Shaft 10: Pedal Frame

11,12: 1st and 2nd footrest 13,14: 1st and 2nd side plate

20: foot support cover 21, 24: first and second support frame

25 support shaft 28 buffer member

31: prime mover 32: driven gear

33: lever 34: push pin

35,48: coil spring 41: locking bar

42: locking projection 43: protrusion

44: operating part

In order to achieve the above object, the present invention provides a bicycle pedal comprising a pedal shaft having one end fixed to a pedal arm of a bicycle, and a pedal frame freely rotatable about the pedal shaft, the foot pedal being installed on a side plate of the pedal frame. An instep support cover freely movable between an instep support position supporting an insulator and an instep release position away from an instep, and the instep support cover being moved between an instep support position and an instep release position by an operation of raising and lowering the foot on the pedal frame; Provided is a bicycle pedal, characterized in that it comprises a position shift mechanism for shifting the position.

In addition, there is provided a bicycle pedal further comprising a locking means for maintaining or releasing the instep support cover fixed in the instep support position.

Hereinafter, the bicycle pedal according to the present invention will be described in detail with reference to the accompanying drawings. 1 and 2, the bicycle pedal of the present invention includes a pedal shaft 2 having one end fixed to the crank arm 1, and a pedal frame 10 freely rotatable about the pedal shaft 2. And a foot support cover 20 for supporting the foot, and a position shifting mechanism for switching the foot support cover 20 between the foot support position and the foot release position.

The pedal frame 10 has a rectangular frame shape and includes first and second footrests 11 and 12 parallel to the pedal shaft 2 and first and second perpendicular to the pedal shaft 2. It consists of the side plates 13 and 14. In addition, a support rod 15 is wrapped around the outside of the pedal shaft 2, and both ends of the support rod 15 are fixed to the first and second side plates 13 and 14 by welding. At an intermediate point between the first and second side plates 13 and 14, an intermediate support plate 16 is disposed in parallel with the first and second side plates 13 and 14, and the intermediate support plate 16 includes first and second foot plates 11 and 12. And fixed to the support bar 15 by welding to prevent deformation, such as distortion of the pedal frame (10). The pedal frame 10 includes a cylindrical boss shaft 18 that projects around the crank arm 1 and surrounds a part of the pedal shaft 2. The boss shaft 18 surrounds the large diameter portion 2b of the pedal shaft 2 described later.

The pedal shaft 2 is composed of a small diameter portion 2a in which the pedal frame 10 is freely installed as shown in FIG. 3, and a large diameter portion 2b inserted into the boss shaft 18. The screw portion 2c for fixing the pedal shaft 2 to the pedal arm 1 and the screw portion 2d for attaching the pedal frame 10 are respectively formed.

Therefore, the pedal frame 10 is installed on the pedal shaft 2 by attaching the pedal frame 10 to the small diameter portion 2a of the pedal shaft 2 and then fastening the nut 3 to the screw portion 2d. At this time, bearings 4 and 5 are interposed between the first and second side plates 13 and 14 of the pedal frame 10 and the small diameter portions 2a of the pedal shaft 2 so that the pedal frame 10 is interposed. The pedal shaft 2 is rotated smoothly.

The instep support cover 20 includes a first support frame 21 extending in a direction perpendicular to the pedal shaft 2 direction and a second support having a vertical portion 22 and a support portion 23 formed in a substantially 'A' shape. Frame 24. The first support frame 21 is freely installed around the support shaft 25 fixed to the first side plate 13 of the pedal frame 10, and the vertical portion 22 of the second support frame 24 is rotated. Is connected to the first support frame 21, each of the first support frame 21 is formed with a rectangular hole (21a) and fastened with two bolts 26 and nuts (27) fixed to the second support frame By doing so, the length in the vertical direction with respect to the pedal shaft (2) is connected to enable. The support portion 23 of the second support frame 24 is preferably formed in an arc shape so as to correspond to the instep, and a cushioning member 28 such as a sponge is attached to a surface in contact with the instep of the support part 23.

The position switching mechanism includes a drive gear 31 freely rotatable on the boss shaft 18 and a driven gear 32 freely rotatably installed on the support shaft 25. A lever 33 having a length protruding beyond the edge of the first side plate 13 of the pedal frame 10 is fixed to the drive gear 31, and a pedal shaft 2 is attached to the end of the lever 33. Push pins 34 protruding in a direction are formed. In addition, a coil spring 35, which is an elastic member, is installed between the drive gear 31 and the first side plate 13, and the coil spring 35 has the lever 33 always exposed upward of the pedal frame 10. The elastic force is imparted in the direction to be made (see FIG. 5 (a)), and the stopper 36a and 36b are formed in the drive gear 31 and the first side plate 13 to move the lever 33 to a predetermined position. It is supposed to stop at.

The driven gear 32 is fixed to the first support frame 21 of the instep support cover 20 by welding or the like, and is engaged with the drive gear 31. Accordingly, as shown in FIGS. 5A and 5B, when the pin 34 is pushed with the foot to rotate the lever 33 a predetermined angle in the direction of the arrow A, the driving gear 31 is rotated so that the driven member is engaged with it. The gear 32 is rotated a predetermined angle in the direction of the arrow B, whereby the foot support cover 20 fixed to the driven gear 32 is rotated by a predetermined angle.

At this time, as shown in Figure 5 (a) the lever 33 is exposed inclined upwardly of the pedal frame 10, the foot support cover 20 of the first and second footrest (11), 12 It is set to the instep release position which is in a state parallel to the upper surface, and as shown in Fig. 5 (b), the instep support is in a position where the lever 33 is pressed to be horizontal with the first and second footrests 11 and 12. The support part 23 of the cover 20 is set to the instep support position where the instep is firmly supported. The rotation angle of the lever 33 and the foot support cover 20 can be set by the diameter ratio of the drive gear 31 and the driven gear 32.

In addition, the bicycle pedal of the present invention further comprises a locking device for maintaining or releasing the instep support cover 20 in a fixed state in the instep support position. The locking means includes a locking bar 41 provided in the pedal shaft 2 direction, and a locking protrusion 42 fixed to the lever 33.

One end of the locking bar 41 is exposed to the through hole 13a of the first side plate 13 of the pedal frame 10 so that the engaging projection 42 of the lever 33 and the projection 43 selectively held therein are provided. It is formed, the other end is formed with the operating portion 44 so as to protrude from the upper surface of the first and second scaffold (11, 12). In addition, a stopper 45 is formed on the side of the protruding portion 43 so that the protruding portion 43 does not protrude more than a predetermined length through the through hole 13a of the first side plate 13, and the end of the operating portion 44 has a step. The jaw portion 46 is formed and the coil spring 48 is elastically installed between the fixing plate 47 fixed to the second side plate 14 by welding. At this time, the protruding position of the protruding portion 43 is set to the position of the engaging projection 42 formed on the lever 33 in the instep support state, and when the lever 33 rotates in the direction of arrow A, the engaging projection 42 and The inclined surfaces 42a and 43a are formed at portions where the protrusions 43 are in contact so that the locking bar 41 can be easily moved in the direction of arrow C during contact.

Therefore, when the lever 33 is rotated in the direction of arrow A and positioned at the foot support position, the locking protrusion 42 is held by the protrusion 43 to keep the foot support cover 20 fixed at the foot support position. When the moving part 44 of the locking bar 41 is slightly pushed to the side to move the foot as shown by the virtual line of FIG. 6 (b), the locking protrusion 42 is released and the instep support cover 20 ) Can be rotated to the instep release position.

The bicycle pedal configured as described above has a pedal frame 10 as the pedal frame 10 and the locking device are installed on one side of the pedal shaft 2 as shown in FIGS. 5 (a) and 5 (b). You will not be able to stay horizontal. Therefore, as shown in FIG. 2, the first scaffold 11 forms a cross-sectional structure in a substantially c-shape to reduce weight, and the second scaffold 12 increases the weight by making a cross-sectional structure in a substantially k-shaped shape, or It is preferable to fix the other metal member to the inner surface so that the left and right weight of the pedal shaft 2 is balanced to keep the pedal frame 10 horizontal.

Referring to the operation of the bicycle pedal configured in this way, as follows. As shown in FIG. 5A, the lever 33 is pulled in the opposite direction to the arrow A direction by the coil spring 35 elastically installed between the drive gear 31 and the first side plate 13. 33) and the instep support cover 20 are both in the instep release state.

When the foot is placed on the pedal frame 10 to ride the bicycle in this state, the push pin 34 of the lever 33 protruding upward of the pedal frame 10 is pressed against the sole of the coil spring (35). ) Is tensioned, and the lever 33 rotates in the direction of arrow A. FIG. As a result, when the drive gear 31 rotates in the direction of arrow A about the boss shaft 18 (pedal shaft 2), the driven gear 32 meshed with the drive shaft 31 interlocks with the arrow about the support shaft 25. Rotation in the B direction, the foot support cover 20 fixed to the driven gear 32 also rotates in the direction of the arrow B around the support shaft 25 in the instep support position as shown in Figure 5 (b) Since the lever 33 is fixed by the locking device, the support 23 of the second support frame 24 can firmly support the instep. Therefore, even when the pedal rotates upwards, it is possible to generate the forward driving force of the bicycle through the foot support cover 20 for supporting the foot.

Referring to the locking process in detail, as shown in FIG. 6A, the locking bar exposed through the through hole 13a of the first side plate 13 in the process of rotating the lever 33 to the instep support position. When reaching the projection 43 of the 41, the engaging projection 42 provided in the lever 33 is in contact with the projection 43 of the locking bar 41 by both inclined surfaces (42a) (43a) Since the downward movement of the lever 33 pushes the locking bar 41 in the direction of arrow C, the locking spring 41 moves in the direction of arrow C while the coil spring 48 is compressed.

Accordingly, as shown in FIG. 6B, the locking protrusion 42 passes through the protrusion 43, and the locking bar 41 is returned to its original position by the elastic restoring force of the compressed coil spring 48. As a result, the locking protrusion 42 is held by the protrusion 43 so that the lever 33 cannot rotate to the instep release position, thereby maintaining the instep support cover 20 fixed to the instep support position.

When the foot is to be released in the state supported by the foot support cover 20 as described above, the foot holding the push pin 34 is moved away from the push pin 34 by moving in the direction of the pedal shaft 2. 6, the moving part 44 of the locking bar 41, as shown in the virtual line state shown in Figure 6, the locking projection 42 of the lever 33 is released from the protrusion 43 is tensioned By the elastic restoring force of the coil spring 35, the lever 33 and the drive gear 31 rotate in the direction of arrow D as shown in FIG.

Accordingly, the driven gear 32 is rotated in the direction of arrow E in conjunction with this, and the foot support cover 20 is moved from the foot support position to the foot release position as shown in FIG. 5 (a) so that the foot can be easily removed from the pedal. Will be.

In addition, when the nut 27 holding the first support frame 21 of the instep support cover 20 and the vertical part 22 of the second support frame 24 is loosened, the first and second footrests 11 are removed. , The height from the upper surface of the (12) to the support 23 of the second support frame 24 can be adjusted. Therefore, by adjusting the height according to the user's foot, it is possible to effectively generate the driving force by firmly supporting the instep.

As described above, according to the bicycle pedal according to the present invention, since the foot is firmly supported by the foot support cover, a driving force is generated even when the pedal is lifted up, so that both pedals continuously drive the forward driving force of the bicycle over 360 degrees. This increases the driving power of the bicycle, and also increases the exercise effect.

In addition, it is very convenient to use because the foot support cover can be operated by simply operating the position change mechanism with the foot, and the foot support cover can be released by simply operating the locking device with the foot. have. In addition, the height of the foot support cover can also be adjusted to increase the driving force, high exercise effect without being limited to the foot height of each user.

Claims (6)

In a bicycle pedal comprising a pedal shaft fixed to one end of a crank arm of a bicycle, and a pedal frame freely rotated around the pedal shaft, An instep support cover 20 provided on the side plate 13 of the pedal frame 10 to move freely between an instep support position supporting the instep and an instep release position away from the instep; Bicycle pedal, characterized in that it comprises a position shifting mechanism for switching the foot between the foot support position and the foot release position by the foot support cover 20 by the operation of raising and lowering the foot on the pedal frame (10). The bicycle pedal of claim 1, further comprising a locking device for maintaining or releasing the instep support cover (20) in a fixed state at the instep support position. According to claim 1 or claim 2, The foot support cover 20 is installed on the side plate 13 of the pedal frame 10 freely rotated about the support shaft 25 is perpendicular to the direction of the pedal shaft (2) The first support frame 21 extending in the direction, To a vertical portion 22 connected to the support frame so that the length can be adjusted in a direction perpendicular to the pedal shaft 2, and a support portion 23 bent in a pedal shaft 2 direction perpendicular to the vertical portion 22. Bicycle pedal, characterized in that consisting of a second support frame (24) made. The method of claim 3, wherein the support portion 23 of the second support frame 24 is formed in an arc shape so as to correspond to the instep, and the cushioning member 28 is attached to the surface in contact with the instep of the support 23. Bicycle pedals. 3. The driving mechanism (31) according to claim 1 or 2, wherein the position shifting mechanism includes: a drive gear 31 freely rotated by a predetermined angle about the pedal shaft 2; A lever 33 having one end fixed to the drive gear 31 and the other end protruding upward of the pedal frame 10; Both ends are fixed to one side plate of the drive gear 31 and the pedal frame 10, the elastic member for imparting an elastic force so that the motive gear 31 and the lever 33 is always in the instep release position; Rotating freely around the support shaft 25 fixed to the pedal frame 10 is meshed with the motive gear 31 interlocked with the driven gear 32 fixed to the foot support cover 20 A bicycle pedal characterized in that configured. According to claim 5, wherein the locking means has a protrusion (43) extending in the direction of the pedal shaft (2) and exposed through the pedal frame 10, protruding from the upper surface of the footrest of the pedal frame 10 on the opposite side of the protrusion Locking bar 41 is provided with an operating unit 44, An elastic member for imparting an elastic force so that the protrusion 43 of the locking bar 41 is always exposed through the pedal frame 10; Bicycle pedal, characterized in that consisting of a locking projection 42 is fixed to the lever 33 is held on the protrusion 43 in the foot support position of the foot support cover (20).