JPS6237838Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to bicycle pedals.

Normally, this type of pedal is configured such that a pedal body is supported on a pedal shaft, and a pedal body is provided with a depression section on the upper surface, and the crank is rotated by placing the driver's foot on the depression section and depressing the pedal body.

However, when transmitting stepping force to the pedal body, generally the foot is placed so that the head side of the metatarsal bone is in contact with the stepping part, and the ankle joint and the phalangeal joint that connects to the head side of the metatarsal bone are connected to the pedal body. forming an arch between
In conventional pedals, when the head side of the metatarsal bone of the foot that is being stepped is brought into contact with the tread surface,
Because the finger part is removed from the depression part and does not come into contact with the depression part, not only is it difficult to control the depression angle with respect to the horizontal line of the pedal body, but also
When pushing the pedal backwards, the user could not use his fingers to push the pedal upward, resulting in poor pedal efficiency.

Conventionally, the pedals of cycling vehicles and competition bicycles are provided with a plurality of mountain-shaped anti-slip protrusions that protrude upward from the upper surface of the pedal body. This is intended to prevent the foot placed on the upper stepping part from slipping, but since the stepping part is only large enough to come in contact with the head side of the metatarsal bone as described above, it has no anti-slip effect. However, due to the vibrations caused when driving on a bumpy road or the shock caused by running over a pebble, the foot placed on the pedal body may slide forward or sideways relative to the pedal body, causing the foot to slide forward or to the side of the pedal body. There were times when I stepped out of line.

This invention was devised in consideration of the above points, and the purpose is to be able to easily control the depression angle of the pedal body using the toe of the foot that is depressed, and to efficiently press the pedal up. To provide a pedal that can improve the anti-slip effect and prevent the foot from sliding forward or sideways relative to the pedal body even when traveling on an uneven road or riding on a pebble. It is in.

However, the present invention supports the pedal body on a pedal shaft that has a shaft for attaching it to the crank at its base end.
near the axis of the pedal shaft of the pedal body,
and a first tread portion extending in the axial direction of the pedal shaft and in the front-rear direction of the pedal body and having a tread surface having a predetermined area on the surface of the base end side of the pedal shaft; On a surface at a position rearward of the depression part and offset toward the tip side of the pedal shaft, and isolated from the first depression part, a predetermined size extending in the axial direction of the pedal shaft and the front-rear direction of the pedal body is provided. The second one has a tread with an area of
While providing a treading part, an auxiliary treading part having an anti-slip protrusion is formed in front of the first and second treading parts of the pedal body, and stoppers projecting upward are provided on both sides of the auxiliary treading part in the width direction. It is characterized by:

Embodiments of the pedal of the present invention will be described below based on the drawings.

In the figure, 1 is a pedal shaft, and 2 is a pedal body rotatably supported on this pedal shaft 1. It consists of a support shaft part 12 extending axially outward from one end, a screw 13 is provided on the outer periphery of the mounting shaft part 11, and a ball bearing surface 14 is provided on the outer periphery of the base end of the support shaft part 12.
A screw 15 is provided on the outer periphery of each tip, and a ball pusher 3 having a ball receiving surface 31 is screwed onto the screw 15 portion.

Further, the pedal body 2 is connected to the support shaft portion 12.
It consists of a body piece 22 that is parallel to the axis of the pedal shaft 1 and has a through hole 21 for receiving the body piece 22, and a stepping part 23 provided on the upper surface of the body piece 22.
Bowls 4 and 5 having ball receiving surfaces 41 and 51 facing the ball receiving surfaces 14 and 31 are provided on the inner surface of the bowl 1, and a sphere 6 is provided between the ball receiving surfaces 14 and 41 and between the ball receiving surfaces 31 and 51, respectively. , 7 are interposed therebetween and are rotatably supported on the pedal shaft 1.

Further, on a surface of the pedal body 2 near the axis of the pedal shaft and at a position on the proximal end side of the pedal shaft 1, the surface extends in the axial direction of the pedal shaft 1 and the front-rear direction of the pedal body 2, and has a predetermined size. In addition to providing a first tread portion 23a having a tread area,
At the rear of the first depression part 23a and deviated toward the tip side of the pedal shaft 1, the first depression part 23a
A second tread portion 23b is provided on a surface at a position isolated from the pedal body 2, and has a tread surface extending in the axial direction of the pedal shaft 1 and the front-rear direction of the pedal body 2, and has a tread surface having a predetermined area. The part 23 is connected to a first stepping part 23a, which is in contact with the head part of the first metatarsal, and a second part, which is in contact with the head part of at least the fifth metatarsal among the second to fifth metatarsals. When the head portion of the first metatarsal is brought into contact with the first stepping portion 23a, at least the head portion of the fifth metatarsal is brought into contact with the second stepping portion 23b.
b, the finger portion is brought into contact with an auxiliary stepping part 26, which will be described later, and the tarsal side portion of the metatarsal bone is brought into contact with a rear stepping part 30, which will be described later.

An auxiliary pedal part 26 having a non-slip projection 25 on the upper surface is provided in front of the pedal part 23 of the pedal body 2 via support pieces 24, 24 extending forward from both sides of the pedal part 23 in the width direction. In addition to being integrally provided, on both sides of the auxiliary step-in portion 26 in the width direction,
Stoppers 27, 27 that protrude upward toward a position higher than the anti-slip protrusion 25 are integrally provided.

In the above configuration, the auxiliary stepping part 26 is
Although it is formed into a strip shape that is short in length in the front-rear direction and long in the width direction, its shape is not particularly limited. Moreover, this auxiliary stepping part 26 is
Although it is formed integrally with the pedal body 2, it may also be formed separately and attached using attachment means such as adhesive or set screws.

Also, the anti-slip protrusion 25 of this auxiliary stepping part 26
As shown in FIG. 1, the first anti-slip protrusion 25a is elongated and extends in the width direction, and the second anti-slip projection 25a extends in the front and back direction.
It is a combination of an anti-slip protrusion 25c and a third anti-slip protrusion 25b which is cut into a diamond, and the first anti-slip protrusion 25a is placed at a predetermined position in the front and back direction at an intermediate position of the auxiliary stepping part 26 excluding both ends in the width direction. A plurality of these first anti-slip protrusions 2 are provided at intervals.
5a prevents slipping in the front-rear direction, and a plurality of second anti-slip protrusions 25c, 25c are provided at both widthwise ends of the auxiliary stepping part 26 at predetermined intervals in the width direction, and the second anti-slip protrusions 25b,
25b to prevent sliding in the left and right direction, and furthermore, the first anti-slip protrusion 25a and the second anti-slip protrusion 25
c, 25c, the third anti-slip protrusion 25
b, 25b are provided, and the third anti-slip protrusions 25b, 25b assist in preventing slipping in the front-back direction and in the left-right direction, making sliding in the front-back direction and left-right direction even more effective. It will be accomplished as soon as it stops.

Further, the stoppers 27, 27 are formed integrally with the auxiliary depression portion 26, but they may be formed separately and attached using attachment means such as adhesive or set screws, or they may be attached to the pedal body 2 or It may be formed integrally with the step-in portion 23, or may be formed separately and attached by the above-mentioned attachment means. The stoppers 27, 27 are inclined inward in the left-right direction toward the front of the pedal body 2, as shown in FIG. 1, to prevent the stepping foot from sliding forward and to the left and right. However, it may also be possible to prevent only sliding in the left and right directions. or,
The stoppers 27, 27 may be formed of one piece or a plurality of pieces, and their shape is not particularly limited.

Note that the illustrated pedal body 2 includes a depression portion 23.
A stopper 28 that projects upward is provided at the outer end in the width direction, but this stopper 28 is not necessarily necessary. However, the provision of the stopper 28 has the advantage of more effectively preventing the stepping foot from sliding laterally.

In addition, the pedal body 2 has a stepping portion 23 rearwardly provided with:
A rear stepping portion 30 having an anti-slip projection 30a on its upper surface is provided integrally with the stepping portion 23 via support pieces 29, 29 extending rearward from both widthwise sides of the stepping portion 23, but this rear stepping portion 30 is not necessarily required. However, by providing this rear stepping portion 30, a very large stepping force can be transmitted to the pedal body 2 for a long period of time with little fatigue, which has the advantage of reducing foot fatigue when a high stepping load is applied.

In the figure, 8 is a weight for directing the depression portion 23 of the pedal body 2 upward, 9 is a reflector, and 10 is a lock nut.

The present invention is constructed as described above, and the head part of the metatarsal bone of the foot to be stepped is connected to the stepping part 2 of the pedal body 2.
3, the finger portion comes into contact with the auxiliary depressing portion 26, and the pedal body 2 is brought into contact with the metatarsal head portion in contact with the depressing portion 23 and the finger portion in contact with the auxiliary depressing portion 26, respectively. Step on the pedal, rotate the crank, and move the bicycle. At this time, the depression angle of the pedal body 2 relative to the horizontal line can be easily controlled using the finger portion that contacts the auxiliary depression part 26, and the pedal is depressed from the top dead center side of the crank to the bottom dead center side. The auxiliary stepping section 2 can be used to forcefully jump backward using the finger portion.
The anti-slip protrusion 25 provided at 6 can prevent the stepping foot from slipping forward or to the left and right sides. In addition, the stoppers 27, 27 provided on both sides of the auxiliary stepping part 26 in the width direction prevent the vehicle from running on a bumpy road or when running over a pebble.
It is possible to reliably prevent the stepping foot from sliding to the left or right side or to the front.

As described above, according to the present invention, a pedal body is supported on a pedal shaft having a crank attachment shaft at its base end, and the pedal body is connected to the pedal shaft near the axis of the pedal shaft and at the base end of the pedal shaft. A first tread portion extending in the axial direction of the pedal shaft and the front-rear direction of the pedal body and having a tread surface having a predetermined area is provided on the surface of the side position; A first step having a tread surface having a predetermined area and extending in the axial direction of the pedal shaft and the front-rear direction of the pedal body, on a surface of the pedal shaft at a position offset toward the tip side of the pedal shaft and isolated from the first tread portion. By providing the second stepping part, when the head of the first metatarsal of the stepping foot is brought into contact with the first stepping part, at least the head of the fifth metatarsal is always brought into contact with the second stepping part. Since the pedal force is transmitted to the pedal body from the entire bone head of the first metatarsal bone to the bone head of the fifth metatarsal bone, it is possible to reduce the fatigue of the pedal foot while transmitting a large pedal force. This is possible.

Further, an auxiliary tread-in part having an anti-slip protrusion is formed in front of the first and second tread-in parts of the pedal body, and stoppers projecting upward are provided on both sides of the auxiliary tread-in part in the width direction. By bringing the toes of the foot into contact with the auxiliary pedal, it is possible to easily control the depression angle of the pedal body with respect to the horizontal line, and the pedal can be pushed back with great force, increasing the efficiency of the pedal. Moreover, since the anti-slip protrusion of the auxiliary stepping part can prevent the stepping foot from sliding back and forth or left and right, the stepping efficiency can be improved accordingly.

Moreover, since upwardly protruding stoppers are provided on both sides of the auxiliary pedal body in the width direction, even when driving on a bumpy road or riding on a sidewalk, the foot that presses on the pedal body can be placed on one side or the front side in the left-right direction of the pedal body. It is possible to reliably prevent sliding, and the pedaling force can always be reliably transmitted from the above-mentioned pedaling portion.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the pedal of the present invention, FIG. 2 is a sectional view taken along the line of FIG. 1, FIG. 3 is a sectional view taken along the line of FIG. 1, and FIG. 4 is a side view. 2... Pedal body, 23... Depressing portion, 25...
...Anti-slip projection, 26...Auxiliary stepping part, 27...
Stopper.

Claims (1)

[Scope of utility model registration request] A pedal body is supported on a pedal shaft having a shaft for attaching to the crank at its base end, and the pedal body has a
A first depression having a tread surface having a predetermined area and extending in the axial direction of the pedal shaft and the front-rear direction of the pedal body, near the axis of the pedal shaft and on the surface of the base end side of the pedal shaft. At the same time, a portion is provided in the axial direction of the pedal shaft and the surface of the pedal body at a position rearward from the first depressing portion, offset toward the distal end side of the pedal shaft, and isolated from the first depressing portion. A second tread portion extending in the front-rear direction and having a tread surface having a predetermined area is provided, while an auxiliary tread portion having an anti-slip protrusion is formed in front of the first and second tread portions of the pedal body; A bicycle pedal characterized in that stoppers projecting upward are provided on both sides in the width direction of the auxiliary pedal.