JPH04252789A - Shoe fixing device for pedal of bicycle - Google Patents

Abstract

PURPOSE:To simply take off the cleat of the sole of a shoe quicker than a pedal main body even by a beginner, without getting hurt in his muscles. CONSTITUTION:The front part 16a of a cleat 16 is locked with a cleat holding part 6 to be unable to rotationally move, and the cleat 16 is held with the cleat holding part 6 to be able to take off from the inside part. A cleat engaging body 7 is engaged with the rear part of the cleat 16 through an elastic member 9. Further, a preventing projection 12 for disconnection of the cleat on the end part of a pedal main body 1 is contacted with the sole of a shoe to prevent disconnection of the cleat 16.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe fixing device for detachably fixing a cleat attached to a shoe sole to a bicycle pedal.

0002

2. Description of the Related Art A conventional device of this type is known, for example, as described in Japanese Patent Application Laid-open No. 197478/1983. That is, this shoe fixing device includes a fixing claw that rotatably engages the tip of the cleat, and a holding claw that engages the rear end of the cleat via an elastic member. In a shoe fixing device having such a structure, in order to remove the cleat, it is necessary to rotate the cleat while keeping the tip of the cleat engaged with the fixing claw, and remove the rear end of the cleat from the holding claw.

[0003] Other conventional shoe fixing devices are disclosed in Japanese Patent Application Laid-Open Nos. 2-53688 and 2-128987.
The device described in the above publication is known, and these devices similarly have a structure in which the cleat is rotated and removed.

0004

[Problems to be Solved by the Invention] In order to rotate the cleat, it is necessary to rotate the shoe to which the cleat is attached on the pedal, which requires the cyclist to twist his/her ankle. However, twisting the ankle is an unnatural motion for the human body, so beginners in particular need to adjust the retaining claws so that they come off easily, and repeatedly practice putting on and taking off the cleats. There is also a risk of injury.

[0005] Furthermore, when a cyclist lands with his or her foot off the pedal, conventional shoe fixing devices require two steps: (1) twisting the ankle to remove the cleat, and (2) removing the foot from the pedal and landing. operation is required. For this reason, if you run over an obstacle while riding your bicycle, it takes time for your feet to land on the ground, which is extremely dangerous, and can cause serious accidents such as broken bones, especially for beginners. There is a risk.

The present invention has been made to solve these problems, and provides a shoe fixing device for bicycle pedals that allows even beginners to remove their feet more quickly than from the pedals and without injuring muscles or the like. The purpose is to provide

[0007]

[Means for Solving the Problems] The present invention was developed as a result of research into how a cyclist removes his/her foot from the pedal when the shoe is placed directly on the pedal without a device. The front part of the cleat, which is provided on the pedal body of a bicycle pedal and corresponds to the tip side of the shoe, is unrotatably locked, and the cleat is removable from the inside part of the cleat, which corresponds to the inside of the shoe. a cleat holding part that holds the cleat; a cleat engaging body that is provided on the pedal body and removably engages with the rear part of the cleat via an elastic member; The shoe is characterized by a protrusion that comes into contact with the sole of the shoe when the cleat is fixed to prevent the cleat from coming off.

[0008]

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 and 2 are a plan view and a side view of a bicycle pedal equipped with a shoe fixing device according to the present invention, and FIG. 3 is a sectional view taken along line A-A in FIG. 1. Moreover, FIG. 4 is a front view of the same shoe fixing device. In these figures, reference numeral 1 indicates a pedal body, which has parallel flat surfaces 2, 2, and is rotatably attached to a pedal shaft 3. Further, inclined surfaces 5, 5 are formed at both ends of the pedal body 1. Note that the pedal shaft 3 is fixed to a crank arm 4 of a bicycle as shown in FIG.

Cleat holding parts 6, 6 are provided on each flat surface 2 of the pedal body 1 at a position close to the inclined surface 5. The cleat holding portion 6 is formed in a substantially U-shape with both ends open outward, and has a shape in which a cleat 16, which will be described later, can be fixedly locked therein. A cleat engaging body 7 is arranged at a position facing each cleat holding part 6. Cleat engagement body 7
is housed in a rectangular housing hole 1A provided in the pedal body 1, and has an engaging pawl 7a projecting toward the cleat holding portion 6 at its upper end. Cleat engagement body 7
The base 7b in the storage hole 1A is rotatably inserted into the support shaft 8. Both ends of the support shaft 8 are fixedly inserted into both sides of the pedal body 1.

As shown in FIG. 3, a stepped recess 7c is formed on the back surface of the cleat engaging body 7. As shown in FIG. This recess 7c
One end of a coil spring 9 is brought into contact with the coil spring 9, and the other end of the coil spring 9 is brought into contact with the tip of an adjustment bolt 10. The adjustment bolt 10 is screwed into a cylindrical portion 11 provided at the rear center of the flat surface 2 of the pedal body 1. Therefore,
By adjusting the screwing amount of the cylindrical portion 11 of the adjustment bolt 10, the pressing force of the coil spring 9 against the cleat engagement body 7 can be set.

At the rear of each flat surface 2, protrusions 12, 12 are provided on both sides of the cylindrical portion 11 to prevent the cleat from coming off. These protrusions 12 come into contact with the sole of the shoe and prevent the cleat from coming off from the cleat holding part 6, as will be described later. Incidentally, fixing protrusions 13, 13 are provided on both sides of the storage hole 1A of the flat surface 2 for fixing the cleat by coming into contact with the rear end surface of the cleat.

On the other hand, FIG. 5 shows the state in which the cleat is attached. In this FIG. 5, 14 indicates shoes, and the shoes 14
A cleat 16 is attached to approximately the center of the sole 15 of the shoe. The cleat 16 is fixed to the sole 15 via a screw 17, and its front part 16a is formed into a trapezoidal shape so as to be fixedly engaged with the cleat holding part 6, as shown in FIG. A protruding portion 16b is provided on the end surface of the rear portion. Note that the sole 15 is provided with an anti-slip protrusion 15a.

Next, the manner of use of the shoe fixing device of the present invention will be explained with reference to FIG. That is, first, as shown in FIG. 6A, the front portion 16a of the cleat 16 is brought into contact with the cleat holding portion 6 obliquely from above. Next, as shown in FIG. 6(B), the shoe 14 is pushed down onto the flat surface 2 of the pedal body 1. As a result, the inclined lower surface of the protrusion 16b of the cleat 16 presses the engagement pawl 7a of the cleat engagement body 7, so that the cleat engagement body 7 moves around the support shaft 8 as shown in the arrow 8, against the elastic force of the coil spring 9. The engaging claw 7a is rotated counterclockwise as shown by .

When the shoe 14 is further pushed down, the lower surface of the cleat 16 comes into contact with the flat surface 2, as shown in FIG. 6(C).
Since the engaging pawl 7a is located above the protruding portion 16b, the cleat engaging body 7 rotates in the clockwise direction shown by the arrow due to the elastic force of the coil spring 9, and the engaging pawl 7a engages with the protruding portion 16b.

When the cleat 16 is attached to the pedal body 1 in this way, as shown in FIG. Both end surfaces of the 16 protruding portions 16b contact opposing surfaces of the fixing protrusions 13, 13. Further, as shown in FIG. 8, the protrusions 12, 12 for preventing the cleat from coming off are
It is in contact with anti-slip protrusions 15a, 15a. Therefore, since the distal end side of the shoe 14 is prevented from separating from the pedal body 1 by the cleat detachment prevention protrusions 12, 12, the front portion 16a of the cleat 16 is prevented from detaching above the cleat holding portion 6. As a result, the cleat 16 can be attached and fixed to the pedal body 1.

[0016] By the way, the inventor of the present application investigated the operation of a cyclist who takes off his shoes from the pedals and lands them on the pedals when his shoes are placed directly on the pedals without using a shoe fixing device. , the following was found. That is, FIG. 13(a
), when the shoe 21 is placed directly on the pedal 20, as shown in (b), remove the sole from the pedal from the inside of the shoe 21, that is, from the crank arm side. 21 is moved on the pedal 20, and the shoe 21 is allowed to land as it is. Therefore, it can be seen that the pedalist simply moves the foot by turning the knee outward without twisting the ankle, and this movement is natural and allows the shoe to land with one movement.

Now, cleat 1 from the shoe fixing device of the present invention.
The operation of removing 6 will be explained. That is, as shown in FIG. 8, the knee is slightly bent outward, and the sole 15 is separated from the pedal body 1 from the inside of the shoe 14 (on the crank arm 4 side). As a result, the front part 16a and the protruding part 16b are separated from the flat surface 2 from the inner part 16c side of the cleat 16, and the protruding part 16
b causes the engagement claw 7a to retreat. Therefore, the cleat 16 comes off from the cleat holding portion 6 and the engaging claw 7a.

Next, the user lifts the foot, moves the shoe 14, and lands it on the ground. From the above, with the device of the present invention, the cleat 16 can be removed from the pedal body 1 with the natural movement of the foot, so the leg muscles will not be injured, and even beginners can easily remove the cleat 16. Can be done. Furthermore, since the user can land by a series of actions of bending the knees and moving the shoes 14, the landing action becomes quick and safety is improved.

9 and 10 are a plan view and a front view of a shoe fixing device according to another embodiment of the present invention, and FIG. 11 is a sectional view of the same device. In these figures, the same parts are given the same reference numerals and their explanations will be omitted. Now, a torsion spring 18 is attached to the support shaft 8. This torsion spring 1
8 is a coil portion 18a, 18a through which the support shaft 8 is penetrated.
and a cleat engaging portion 18b formed in a U-shape and located between the coil portions 18a, 18a. The upper portion of the cleat engaging portion 18b protrudes from the storage hole 1A. Both ends 18c, 18c of the torsion spring 18 are locked to the movable plate 19 while applying a pressing force. Moving board 1
The tip of an adjusting screw 10A is screwed into the center of the housing hole 9, and the adjusting screw 10A is rotatably held in a fixed position by a protruding plate 1B of the storage hole 1A. Therefore, by turning the adjustment screw 10A, the movable plate 19 moves up and down, so that the torsion spring 18
The elastic force of is adjusted.

[0020] In the shoe fixing device having the above configuration,
As shown in FIG. 12, the shoe 14 is attached to the flat surface 2 of the pedal body 1.
When pressed, the front portion 16a of the cleat 16 is unrotatably locked to the cleat holder 6, and the protruding portion 16b presses the cleat engaging portion 18b to retreat. Then, when the cleat 16 comes into contact with the flat surface 2, the cleat engaging portion 18b engages with the protruding portion 16b. In the above two embodiments, shoe fixing devices are provided on both flat surfaces 2 of the pedal body 1, so operations such as turning the pedal half a turn when attaching the shoe 14 to the pedal are not necessary, improving operability. . Note that both ends of the cleat holder 6 may be provided separately from the center,
In short, the shape of the cleat 16 may be made into a locking structure that cannot be rotated.

[0021]

[Effects of the Invention] As explained above, according to the present invention,
The front part of the cleat is unrotatably locked in the cleat holding part, the cleat is removably held from the inside of the shoe, and the cleat engaging body is removably engaged with the rear part of the cleat via an elastic member. Since the protrusion for preventing the cleat from coming off is brought into contact with the sole of the shoe, the cleat can be removed from the pedal body by a natural movement of separating the cleat from the inner side without making an unnatural movement of twisting the ankle or the like. Furthermore, the shoe (foot) can be quickly landed on the ground following the action of removing the cleat. Therefore, it is possible to provide a highly safe shoe fixing device that allows even beginners to easily remove the cleats without injuring their feet.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a shoe fixing device according to the present invention.

FIG. 2 is a side view of the shoe fixing device according to the invention.

FIG. 3 is a cross-sectional view taken along line AA in FIG. 1;

FIG. 4 is a front view of the shoe fixing device according to the present invention.

FIG. 5 is a sectional view showing how the cleat is attached to the shoe.

FIG. 6 is a cross-sectional view for explaining the cleat mounting operation of the shoe fixing device according to the present invention.

FIG. 7 is a plan view showing a state in which the shoe fixing device according to the present invention is attached to a cleat.

FIG. 8 is an explanatory diagram for explaining a cleat removal operation of the shoe fixing device according to the present invention.

FIG. 9 is a plan view of a shoe fixing device according to another embodiment of the present invention.

FIG. 10 is a front view of a shoe fixing device according to another embodiment.

FIG. 11 is a sectional view of a shoe fixing device according to another embodiment.

FIG. 12 is a cross-sectional view for explaining the cleat mounting operation of the shoe fixing device according to another embodiment.

FIG. 13 is a schematic explanatory diagram for explaining the operation from removing the shoe from the pedal to landing the shoe on the ground.

[Explanation of symbols]

1　Pedal body 2 Flat surface 6 Cleat holding part 7 Cleat engagement body 7a Engagement claw 8 Support shaft 9 Coil spring 10 Adjustment bolt 12.Protrusion to prevent cleat from coming off 15 Sole 16 Cleats 18 Torsion spring 18b Cleat engagement part 19 Moving board

Claims (1)

[Claims] 1. A device for removably fixing a cleat attached to the sole of a shoe to a bicycle pedal, the cleat being provided on a pedal body of the bicycle pedal and corresponding to the tip side of the shoe. a cleat holding part that locks the front part of the pedal in an unrotatable manner and holds the cleat removably from the inside part of the cleat that corresponds to the inside of the shoe; A cleat engaging body that is removably engaged via a member, and a protrusion for preventing cleat detachment that is protruded from an end of the pedal body on the side of the cleat engaging body and that comes into contact with the sole when the cleat is fixed. A bicycle pedal shoe fixing device comprising: