JPS6216154Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bicycle pedal, and more particularly to a pedal in which a pedal body having a tread surface is rotatably supported by a crank via a pedal shaft.

Normally, this type of pedal has a pair of support plates rotatably attached to both ends of the pedal shaft via spheres, and between these support plates is a cover for the pedal shaft and a shaft that is centered around the axis of the pedal shaft. The pedal body is configured to support a pedal body having tread surfaces at the front and rear, and to rotate the crank by placing the foot on the front and rear tread surfaces of the body and stepping on the pedal body.

However, with this conventional pedal, the pedal body may be inverted and the tread surface of the body may face downward, so when the pedal is depressed, the pedal body is inverted and the tread surface of the body is directed upward. It was a hassle to have to do it.

By the way, in order to eliminate the above-mentioned inversion of the pedal body, it is sufficient to attach a balance weight to the body, but in this case, the pedal body should be structured so that a balance eight can be attached, or if there is no such thing, the pedal body should be Since it is necessary to provide a special attachment part for attaching the balance weight, the structure of the pedal body becomes complicated, which, together with the need for a special balance weight, increases the cost.

The present invention was devised in view of the above points, and its purpose is to make it possible to always direct the tread surface of the pedal body upward without providing a special balance weight, and to provide a simple and inexpensive structure. The point is to provide pedals that can.

Therefore, in the present invention, support walls protruding downward are provided on both sides in the left and right direction on the lower side of a pedal body having a tread surface on the upper surface, and bearings are attached to each of these support walls. The pedal shaft is rotatably supported between the support walls, and the pedal shaft is rotatably supported between the support walls.
The present invention is characterized in that a cover serving as a balance weight is attached so as to be in contact with the pedal body, thereby closing the downwardly open space between the support walls.

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

In the figure, 1 is a pedal body, 2 is a pedal shaft supported by this body 1, and the pedal body 1 includes a first body piece 11 extending in the axial direction of the pedal shaft 1, Second and third body pieces 12 and 13 arranged on both sides with the piece 11 in between, and fourth and fifth body pieces that connect the left and right ends of these first to third body pieces 11 to 13.
The first body piece 11 has an intermediate tread 11a on the upper surface, the second body piece 12 has a front tread 12a on the upper surface, and a third
A rear tread 13a is provided on the upper surface of the body piece 13, and a left tread 14a and a right tread 15a are provided on the upper surfaces of the fourth and fifth body pieces 14 and 15, respectively.
Incidentally, this pedal body 1 is made of aluminum alloy and is molded by a die-casting method.

The pedal shaft 2 includes a mounting shaft portion 21 that is attached to a bicycle crank, and a support shaft portion 22 that extends axially outward from one end of the mounting shaft portion 21. A screw 23 is provided, and a ball receiving surface 24 is provided on the outer periphery of the base end of the support shaft portion 22.
A screw 25 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 25 portion.

Therefore, on the lower side of the pedal body 1, support walls 16, 16 protruding downward from the first body piece 11 are provided in opposing directions on both sides in the left and right direction,
These support walls 16, 16 are provided with through holes 17, 17 for receiving the support shaft portion 22 of the pedal shaft 2,
The ball receiving surfaces 24, 3 are provided on the inner surfaces of the through holes 17, 17.
Ball bearing surfaces 18, 18 facing the pedal shaft 2 are provided, and spheres 4, 4 are interposed between the ball bearing surfaces 18, 24 and between the ball bearing surfaces 18, 31, respectively, to support the pedal shaft 2 freely in rotation. On the other hand, a cover 5 serving as a balance weight of the pedal body 1 is disposed between the support walls 16 and 16.
The cover 5 is attached so as to be in contact with the pedal body 1 to close the downwardly open space between the support walls 16, 16, and the cover 5 allows rainwater, mud, etc. to be removed from between the support walls 16, 16 from the sphere 4. ，
This prevents water from penetrating into the four parts, and also ensures that the treads 11a to 15a of the body 1 are always facing upward.

The cover 5 is made of a metal such as stainless steel, which is heavier than aluminum alloy, and includes a narrow bottom wall 51 extending in the axial direction of the pedal shaft 2, and a front and rear wall of the bottom wall 51, as shown in FIG. A front wall 52 and a rear wall 5 projecting upward from both end edges.
3, and is attached to the lower surface of the support walls 16, 16.

The attachment of this cover 5 can be carried out, for example, by
Receptacles 16a, 16a for receiving the bottom wall 51 of the cover 5 are provided on the lower surfaces of the receptacles 16, 16.
a, 16a are provided with pins 6, 6 that protrude downward, while through holes 54, 54 for receiving the pins 6, 6 are provided in the bottom wall 51 of the cover 5,
The bottom wall 51 of the cover 5 is connected to the seats 16a, 16.
a, and insert the pins 6, 6 into the through holes 54, 54.
It is attached by fitting the pins 6, 6 into the pins and biting the tips of the pins 6, 6. In addition, the cover 5
may be attached to the first body piece 11 in addition to being attached to the support walls 16, 16. Further, in addition to fixing with the pin 6, it may be attached by an attaching means such as a set screw or a locking means, and the attaching means is not particularly limited.

Further, reflectors 7, 7 are attached to the front wall 52 and rear wall 53 of the cover 5 as shown in the figure.

Further, the illustrated pedal body 1 is provided with opposing ribs 19, 19 that protrude downward from the first body piece 11 to reinforce the pedal body 1, and the left tread surface 14a and the right tread surface 15a are provided with non-slip surfaces. Spikes 8, 8 for stopping are provided.

In the figure, 9 is a cap, and 10 is a lock nut.

As described above, the present invention first protrudes downward on both sides in the left and right direction on the lower side of the pedal body which has a tread surface on the upper surface, and attaches bearings to each of these support walls, so that the pedal shaft can freely rotate between the support walls. Since the pedal shaft is supported by the support wall, the space into which the pedal shaft is inserted, that is, the space between the support walls is opened.

Therefore, when molding the pedal body using a mold, the mold is simple, and mass production can be performed easily and at low cost.

Next, a cover serving as a balance weight was attached between the support walls so as to make contact with the body to close the downwardly open space between the support walls. Not only does this cover prevent rainwater and mud from entering the installed bearing, protecting it and extending the life of the pedal, but it also serves as a balance weight, so there is no need to install a special balance weight as a separate member. There is no need to provide any mounting means for mounting. Furthermore, by using the outer surface of this cover, a reflector can be attached to it to aid safety when driving at night.

[Brief explanation of the drawing]

The drawing shows an example of the pedal of the present invention.
Figure 1 is a plan view, Figure 2 is a rear view, Figure 3 is a
4 is a sectional view taken along the line in FIG. 1, FIG. 5 is a bottom view with the cover removed, and FIG. 6 is a perspective view of only the cover. 1...Pedal body, 11a to 15a...Tread surface, 16...Support wall, 5...Balance weight.

Claims (1)

[Scope of utility model registration request] At the bottom of the pedal body having a tread on the upper surface, support walls protruding downward are provided on both sides in the left and right directions, and bearings are attached to each of these support walls, and the pedal shaft is rotated between the support walls. A bicycle, characterized in that the bicycle is freely supported, and a cover serving as a balance weight is attached between the support walls so that the cover contacts the body, thereby closing a downwardly open space between the support walls. pedal.