JP2008055935A - Mounting device for bicycle pedal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a detachable mounting device for a pedal shaft eliminating a risk that a pedal comes off due to an accidental force. <P>SOLUTION: The pedal mounting device is constituted by combining a receiving tool attached to a pedal shaft attaching hole of a pedal crank, and a pedal shaft having a locking recessed portion wherein a locking element is locked to an outer periphery. The receiving tool is composed of a screw collar in which the pedal shaft is inserted, the locking element attached to a through-hole formed at the screw collar, and a stopper collar slidably attached to the outside of the screw collar, and locking and releasing the locking element to and from the pedal shaft. A spring is arranged between the screw collar and the stopper collar, and a protrusion formed on the screw collar and a groove formed on the stopper collar are positioned to fit with each other. The mounting device for the bicycle pedal is constituted so as to release locking between the locking element and the locking recessed portion by sliding the stopper collar. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bicycle pedal mounting apparatus.

In the conventional bicycle pedal, screws are provided on the pedal shaft and the pedal crank, and both screws are fastened and fixed.
In such a structure, only a person having a bicycle maintenance technique can attach a pedal. However, in recent years, the sales route of bicycles has shifted to so-called mass sales stores other than bicycle specialty stores, but the need for engineers in mass sales stores is desired. In addition, it is desired that a purchaser who is not a mail-order sales person or a person skilled in the art can attach the pedal and can ship it with the pedal removed.
Moreover, the heavy user of a bicycle may desire to use it by changing a pedal according to conditions. However, the conventional pedal requires a tool and time for attaching and detaching, and a pedal that can be easily attached and detached is desired.

In order to solve such problems, the applicant has previously proposed a pedal mounting device that does not require a tool (Japanese Patent Laid-Open No. 2000-289680).
The invention of the previous application has the following configuration.
A combination of a receiver mounted in a pedal shaft mounting hole of a pedal crank and a pedal shaft having an annular locking recess that is locked by a locking body on the outer periphery. A screw collar having an inner diameter equivalent to the outer shape of the shaft, a locking body attached to a through hole formed in the screw collar, and a stopper collar slidably attached to the outside of the screw collar. . The stopper collar has an annular stopper projection that presses the locking body toward the central axis of the screw collar and holds the locking body in a locked state in the locking recess of the pedal shaft,
A spring is disposed between the screw collar and the stopper collar. The spring biases the stopper collar in the crankshaft direction, and the stopper collar and the stopper are slid in the pedal direction. The locking with the locking recess is released.
JP 2000-289680 A

In the above invention, the stopper collar is biased to the crank side by the spring, and in this state, the locking body maintains the state of being locked to the pedal shaft, but the stopper collar is restricted from moving to the pedal side. Relying solely on the spring, the stopper collar moves to the pedal side due to unintentional force, and as a result, the pedal may come off.
This invention makes it a subject to eliminate the danger that a pedal will remove | deviate by accidental force, making the basic composition the same as previous invention.

The pedal mounting device according to the present invention is configured by combining a receiving member mounted in a pedal shaft mounting hole of a pedal crank and a pedal shaft provided with a locking recess that locks a locking body on the outer periphery.
The receptacle is a screw collar having an inner diameter equivalent to the outer shape of the pedal shaft, a locking body mounted in a through-hole formed in the screw collar, and a slidably mounted outside the screw collar. Consists of a stopper collar.
The stopper collar is provided with an annular stopper projection that presses the locking body toward the center axis of the screw collar and holds the locking body in the locking recess of the pedal shaft. A spring is arranged between the stopper collar. The spring is arranged so as to urge the screw collar and the stopper collar in the separating direction or the attracting direction and to apply a rotational force between them.
A protrusion is provided on the outer side of the screw collar, and an axial groove for moving the protrusion is provided on the peripheral wall of the stopper collar, the stopper collar is rotated to align the groove and the protrusion, and the stopper collar is The bicycle pedal mounting device is configured so that the locking between the locking body and the locking recess is released by sliding.
The locking body is preferably a sphere (claim 2).

The locking body is preferably a sphere, but may be adopted as long as it can enter and exit from a through hole formed in the screw collar and can be locked in the locking recess of the pedal shaft. The number of through-holes or locking bodies is preferably plural, particularly 4 or more when the locking body is a sphere, but the number is not limited.
Further, the axial groove formed in the stopper collar may not be formed into a slit shape, but a concave groove through which a screw collar protrusion can pass may be formed inside the peripheral wall of the stopper collar.
The rotation angle between the screw collar and the stopper collar by the spring is considered to be about 90 degrees, but is not limited to this.
And as an urging | biasing direction of the axial direction of a spring, as shown to embodiment, there exist the aspect which urges | biases a screw collar and a stopper collar in a separation direction, and the aspect which urges | biases both in an attraction direction. In the latter case, the state where the locking body is locked in the locking groove of the pedal shaft while the stopper collar is attracted to the screw collar side is maintained, and when the pedal is attached or detached, the stopper collar is pulled toward the pedal side, Release the lock.

The pedal mounting device according to the present invention is used in a state where the receiving member is mounted in the screw hole of the crankshaft. That is, at the time of shipment from a bicycle factory or the like, a receiver is attached to the crankshaft, and a pedal is attached in a state where the receiver is previously attached to the crankshaft at a store or the like.
The stopper collar of the receiver is rotated so that the groove is aligned with the protrusion of the screw collar, and then the stopper collar is slid. At this time, since the locking body is released from the concave pressure of the stopper convex portion, the pedal shaft can be inserted into the receiving member without being blocked by the locking body. Then, when the hand is released from the stopper collar, the stopper collar moves to the pedal side by the force of the spring, the locking body is pressed by the stopper convex portion to the locking concave portion of the pedal shaft, and the pedal is fixed.
Therefore, the pedal is fixed under the same conditions without using a tool and with or without technology. Moreover, the latch of a latching body is cancelled | released by sliding a cap, and a pedal can be removed. Therefore, it becomes a pedal attachment device that does not require a technique for attachment and can be easily attached and detached.
Also, the stopper collar is held in a locked state by a spring, and the stopper collar cannot move unless the stopper collar is rotated against the spring. The risk of losing is resolved.

1 to 6, a locking recess 2 is formed in an annular shape on the pedal shaft 1 of the pedal A, and this locking recess 2 is detachably locked to a receiver 4 fixed to the pedal crank 3. Thus, the pedal A is fixed to the pedal crank 3.

The specific configuration of the locking body is as follows.
A mounting hole for mounting the pedal shaft is provided at the tip of the pedal crank 3, and a thread groove is formed in the inner wall of the mounting hole, and a screw collar 5 which is a cylindrical body is formed in the thread groove. The screw groove 5a provided in the above is screwed and attached.
The peripheral wall of the screw collar 5 is formed with four through holes 7 for mounting the locking bodies 6 at equal intervals on the same circumference, and the through holes 7 are respectively formed as spheres. Body 6 is attached.

A stopper collar 8 is attached to the outside of the screw collar 5. On the pedal side of the stopper collar 8, a stopper projection 9 having a small diameter is formed in an annular shape so as to press the locking body 6 toward the locking recess 2 of the pedal shaft 1. On the pedal side, the large-diameter portion 10 is provided to allow the locking body 6 to escape from the locking recess 2 and escape.
The large diameter portion 10 has such a size that the locking body 6 does not fall out from the through hole 7 of the screw collar 5 when the stopper collar is slid to the crank side.
The receiving collar 4 is constituted by the screw collar 5, the locking body 6, and the stopper collar 8.

A protrusion 11 is provided on the screw groove side of the screw collar 5, and a groove 12 on which the protrusion 11 can move so that the stopper collar 8 can move in the crank direction on the crank side peripheral wall of the stopper collar 8. Are provided in the axial direction.
A coil spring 13 is disposed between the screw collar 5 and the stopper collar 8. The spring 13 biases the screw collar 5 and the stopper collar 8 away from each other, and a rotational force (90 degrees) is applied between them. Then, due to the force of the spring, in the normal state, the stopper collar 8 has its stopper projection 9 positioned at a position corresponding to the latching body 6 and pushes down the latching body 6. The projection 11 of the screw collar 5 is locked to the crank side end edge of the stopper collar 8.

  By rotating the stopper collar 8 by 90 degrees, the groove 12 formed on the peripheral wall of the stopper collar 8 is aligned with the position of the stopper pin 11, and the stopper collar 8 is pushed in the crank direction so that the stopper collar 8 is moved in the axial direction. The concave pressure of the locking body 5 is released by the movement of the stopper projection 9 from the position corresponding to the locking body.

Hereinafter, the usage method of the attachment apparatus of this embodiment is demonstrated.
When attaching the pedal A, when the stopper collar 8 is rotated against the spring 13 and the protrusion 11 and the groove 12 are aligned and pushed into the crank side, the stopper step 9 of the stopper collar 8 moves toward the crank side. And the press of the latching body 5 by the stopper step part 9 is cancelled | released. When the pedal shaft 1 is inserted into the screw collar 5 in this state, and then released from the stopper collar 8 and returned to the original position by the force of the spring 13, the locking body 5 is pressed by the stopper convex portion 9 to be pedaled. Lock in the locking recess 2 of the shaft.
When the pedal A is removed, the pedal shaft 1 may be pulled out after the stopper collar 8 is pushed in to release the pressing of the locking body 5 as described above.

  In the above, the locked state cannot be released unless a two-step operation of rotating and pushing the stopper collar 8 is performed by the attached pedal. Axial and rotational forces are required. And since it is difficult to assume that the forces in both directions are inadvertent, it is unlikely that the pedal attached by this device will be disengaged by inadvertent forces during use.

  According to the present invention, the spring mounted between the screw collar and the stopper collar applies an axial force and a rotational force between the two, so when removing the mounted pedal It is necessary to apply the forces in the two directions simultaneously. Therefore, the danger that the pedal will come off due to unintentional force is eliminated as much as possible, and it has industrial applicability as a pedal attachment device that is easy to attach and detach and is safe.

It is a disassembled perspective view of this embodiment. It is a perspective view at the time of fixation similarly. It is a perspective view of a receiver similarly. It is a partial cross section figure of a receiver in a locked state similarly. It is a partial cross section figure of the receiving device in a latching release state similarly.

Explanation of symbols

A Pedal 1 Pedal shaft 2 Locking recess 3 Crank 4 Receptor 5 Screw collar 6 Locking body 7 Through hole 8 Stopper collar 9 Stopper projection 10 Large diameter portion 11 Protrusion 12 Groove 13 Spring

Claims (2)

It is composed of a combination of a receiver mounted in the pedal shaft mounting hole of the pedal crank and a pedal shaft provided with a locking recess that locks the locking body on the outer periphery,
The receptacle is
Consists of a screw collar having an inner diameter equivalent to the outer shape of the pedal shaft, a locking body attached to a through hole formed in the screw collar, and a stopper collar slidably attached to the outside of the screw collar. And
The stopper collar has a stopper projection that presses the locking body in the direction of the central axis of the screw collar and holds the locking body in a locked state in the locking recess of the pedal shaft,
A spring is disposed between the screw collar and the stopper collar,
The spring is arranged so as to urge the screw collar and the stopper collar in the separating direction or the attracting direction, and to apply a rotational force between them,
A protrusion is provided on the outer side of the screw collar, and an axial groove for moving the protrusion is provided on the peripheral wall of the stopper collar.
The stopper collar is rotated to align the groove and the projection, and the stopper collar is slid to release the locking between the locking body and the locking recess.
Bicycle pedal mounting device 2. The bicycle pedal mounting device according to claim 1, wherein the locking body is a sphere.

Images