JPH08326389A - Lock for bicycle - Google Patents

Abstract

PURPOSE: To increase the slidable length of a movable hook bar and expand the length in which locking is possible in a lock provided with a fixed hook and a movable hook bar opposed thereto and incorporating a cylinder lock having a rack part provided in the movable hook side and latched by a check claw provided in a lock body. CONSTITUTION: A tubular lock body 1 is formed in the proximal end side with a fixed hook 3. A movable hook bar 8 provided on the outer end with a hook part 7 is fitted from an opening part 2 in the tip of the lock body so that a rack part 9 provided on one side of the movable hook bar meshes with a check claw piece 6 provided swingingly in the lock body. The check claw piece 6 is driven by the rotation of an operating pin 11 of a cylinder lock mechanism 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention locks a movable hook rod inserted between a rear tire and a rim of a rear tire between a fixed hook and a movable hook rod, for example, by hooking the hook on a rear hawk of a bicycle. With respect to the lock for a motorcycle as described above, the feature is that the movable hook rod is fixed to the locking position by the engagement of the check claw and the rack portion in the hollow lock body.

[0002]

2. Description of the Related Art A fixed hook portion and a movable hook rod, which face each other on the left and right sides, sandwich two lockable members so as to press each other, and a rack portion provided on the movable hook rod is provided in a lock body. A lock for a motorcycle of this type, which is fixed by a non-return pawl, is disclosed in, for example, Japanese Patent Application No.
-There is 330170.

[0003]

In the above-mentioned conventional lock, the handle grip and the brake lever of a motorcycle or a bicycle are mainly used as a locked body. However, this type of lock is hooked between the rear forks of the bicycle, for example. It has become desirable to be able to lock the rear tire non-rotatably.

In the conventional lock, since the fixed hook portion is integrally provided at the tip of the lock body and the movable hook rod is fitted from the base side of the lock body, the stance that can be locked by moving the movable hook rod is short. There was a drawback. Therefore, an object of the present invention is to lengthen a stance that can be locked by moving the movable hook rod so that the rear wheel of the bicycle can also be locked.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a lock main body which is formed in a tubular shape with an opening at the front end, and integrally provided on the base end side with a fixing hook for locking the locked body. A cylinder lock mechanism that is embedded in the lock body with the key hole facing the end face on the proximal end side, and is pivotally supported by a fulcrum shaft that is laid horizontally in the lock body so that it can swing freely along the length direction of the lock body. While being attached and being urged by a spring, the non-return pawl piece, which constantly swings in response to the operation of the cylinder lock mechanism, is brought into contact with the operation pin at the inner end of the cylinder lock mechanism at its base end. A rack portion provided at one end with a hook portion facing the fixed hook and hooking the other locked object, slidably fitted into the lock main body through the opening of the lock main body. A lock for a two-wheeled vehicle, comprising: a movable hook rod that engages with the above-mentioned check claw piece.

According to the lock of the present invention, a return traction spring having a fixed end portion on the base end side of the lock body is connected to the inner end of the movable hook rod so that the movable hook rod can be returned at the time of unlocking operation. In addition, it is possible to automatically press the locked object by the movable hook rod during the locking operation.

According to the lock of the present invention, the fixed hook and the hook portion of the movable hook rod have hook portions inwardly facing each other, and the rack portion of the movable hook rod and the non-return pawl engaging with the rack portion. Is provided with a rack and a non-return pawl that are inclined in a direction that allows sliding in the pushing direction of the movable hook rod that is slidably fitted in the lock body, or
The fixed hook and the hook portion of the movable hook rod are
The rack portion of the movable hook rod and the non-return pawl engaging with the hook portion are provided with hook portions that are bent back toward each other, and the movable hook rod that is slidably fitted in the lock body slides in the pulling-out direction. By providing a rack and a non-return pawl that are inclined in the direction that allows the lock, a lock that locks the two locked bodies in a direction in which they press each other, or a type that locks by locking the two locked bodies Can be a lock.

[0008]

In the lock of the present invention, the fixed hook is integrally formed on the base end side of the lock body, and the movable hook rod is fitted into the opening provided at the tip of the lock body formed into a tubular shape and slidable within the lock body. Since it is movable, the lockable length of the movable hook portion facing the fixed hook can be made larger than that of the lock of the prior application, so that it is not limited to the handle portion of the bicycle and the rear hawk of the bicycle. It has become possible to lock parts with relatively large intervals as shown in.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. As shown in the drawing, this lock has a tip (left side in the figure)
A lock body 1 formed in a tubular shape with an opening 2 on the bottom, a fixed hook 3 integrally formed below the base end side (right side in the figure) of the lock body 1, and a base end side of the lock body 1. A cylinder lock mechanism 4 embedded in the lock body with the lock hole 13 facing the end face,
A non-return pawl piece 6 that is pivotally supported by a fulcrum shaft 5 that is horizontally installed in the lock body and is swingably attached along the length direction of the lock body 1.
And a hook portion 7 at the outer end of the movable hook rod 8 slidably fitted into the lock body through the opening 2 and a rack portion 9 provided on one side surface of the movable hook rod 8 for non-return. While the check claw 10 provided at the tip of the claw piece 6 is engaged, the check claw piece 6
The base end of the operating pin 11 of the inner end of the cylinder lock mechanism 4
And a spring 12 that urges it so as to be pressed into contact with.

In the first embodiment shown in FIGS. 1 to 3, a fixed hook 3 hanging down to the base end side of the lock body 1 and a hook portion 7 of a movable hook rod 8 projecting from an opening 2 of the lock body 1 are inside each other. It is the one when facing each other.

As shown in FIG. 3, in the first embodiment, when the key 14 inserted into the key hole 13 opened on the outer end surface of the cylinder lock mechanism 4 is rotated by 90 °, the actuating pin 11 formed in a square shaft shape is released. By rotating, the base end of the non-return pawl piece 6 is pushed down against the spring 12 at the angle of the angular axis, and conversely, the non-return pawl 10 rises to release the hook of the rack portion 9 and the movable hook rod 8 It is possible to move (forward and backward).

Similarly, as shown in FIG. 3, while the key 14 is being rotated, the fixed hook 3 is hung on one of the locked bodies A to be locked, and the movable hook rod 8 extended from the lock body 1. Hang the hook 7 at the tip of the
When the key 14 is rotated 90 ° again, the base end of the check claw piece 6 is raised by the bias of the spring 12, and the check claw 10 at the tip of the check claw piece 6 is again moved to the rack portion 9 of the movable hook rod 8. And the movable hook rod 8 is prevented from further extending.

The rack portion 9 and the check claw 10 of the first embodiment are
Since the movable hook rod 8 has a sawtooth-like inclination (downward in the drawing) that allows sliding in the pushing direction, the lockable bodies A and B sandwiched between the fixed hook 3 and the movable hook rod 8 are provided.
Can be locked in a state in which they are compressed by pushing the movable hook rod 8.

FIG. 4 shows an example of use in which the rear wheel 15 of the bicycle C is locked in a non-rotatable manner using the first embodiment. In the same figure, the fixed hook 3 is hooked on one rear fork 16 and the rear wheel 1
The hook portion 7 of the movable hook rod 8 which has penetrated 5 laterally is hung on the other rear fork 17 to keep the gap between the hooks 3 and 7 so as not to fall off, and the movable hook rod 8 is pushed in and locked. There is.

In Embodiment 2 shown in FIG. 5, the fixed hook 3 and the hook portion 7 of the movable hook rod 8 are outwardly bent so as to be bent back, and the rack portion 9 of the movable hook rod 8 and the rack portion 9 are engaged with it. Check claw 10 at the tip of check claw piece 6
Also, contrary to the first embodiment, the fixed hook 3 and the movable hook rod 8 are formed to have a sawtooth-like inclination (rightward in the drawing) that allows the movable hook rod 8 to slide in the pulling direction. This is a case where the two locked bodies A and B can be locked in a tensioned state.

The construction of each of the other parts of the second embodiment is as follows.
With respect to the same aspect as that of the first embodiment, corresponding parts are denoted by the same reference numerals and detailed description thereof will be omitted.

As described above, in the second embodiment in which the movable hook rod 8 can be slid in the pulling-out direction, the fixed hook 3 is brought into contact with one of the lockable bodies A from the inside, and the lock body 1 is locked.
The hook portion 9 of the movable hook rod 8 extended from the above is also brought into contact with the other object to be locked B from the inside so that both hooks 3, 9
It is used to further extend the space.

In the cylinder lock mechanism 4 of the second embodiment, the rack portion 9 of the movable hook rod 8 is fixed to the check claw 10 at the time of the locking operation.
The key 14 can be used only when unlocking because it can be done while it is still engaged.

The movable hook rod 8 of the first and second embodiments is shown in FIG.
2 and FIG. 5, respectively, at the inner end, the lock body 1
By connecting the return traction spring 19 having the fixed end 18 to the base end side of the movable hook rod 8, it is possible to automatically return the movable hook rod 8 at the time of the unlocking operation. In the case of the first embodiment, the urging of the return traction spring 19 assists the compression between the locked bodies A and B, while the unlocking operation is performed.
It is necessary to slightly extend the movable hook rod 8 against the bias of the spring 19 to a position where the hook portion 7 disengages from the locked body B.

In the practice of the present invention, the orientation of the hook portions of the fixed hook and the movable hook rod and the corresponding inclination of the rack portion and the check claw are arbitrary. It is also optional to attach a return traction spring to the movable hook rod.

[0021]

As described above, according to the present invention, the fixed hook is integrally formed on the base end side of the lock body, and the movable hook rod having the movable side hook portion opposed to the fixed hook is formed in the cylindrical shape. The lock body is slidably inserted from the opening provided at the tip of the lock body, while the lock body is mounted with a cylinder lock mechanism embedded with the key hole facing the end face on the proximal side and a fulcrum shaft. It is mounted so that it can swing along the length of the lock body, and while being urged by a spring, the base end is always in contact with the operating pin at the inner end of the cylinder lock mechanism, and it is driven by the operation of the cylinder lock mechanism. And a rocking non-return pawl piece, and a rack portion provided on one side of the movable hook rod is engaged with the non-return pawl piece,
Since the movable hook rod is fixed at the locking position,
It was possible to increase the lockable length of locks of this type. For this reason, it has become possible to lock not only the handle portion of the bicycle but also a relatively large space such as a rear hawk of the bicycle. The present invention has excellent effects as described above.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view showing a first embodiment of the present invention.

FIG. 2 is a right side view of the first embodiment.

FIG. 3 is a partially longitudinal side view showing a locking operation state of the first embodiment.

FIG. 4 is a partially cutaway perspective view illustrating a usage state of the first embodiment.

FIG. 5 is a partially longitudinal side view showing Embodiment 2 of the present invention together with its locking operation state.

[Explanation of symbols]

 1 Lock Main Body 2 Opening Part 3 Fixed Hook 4 Cylinder Lock Mechanism 5 Support Point Shaft 6 Check Claw Piece 7 Hook Part 8 Movable Hook Rod 9 Rack Part 10 Check Claw 11 Working Pin 12 Spring 13 Keyhole 14 Key 15 Rear Wheel 16 Rear Hawk 17 Rear Hawk 18 Fixed End 19 Return Traction Spring A Locked Body B Locked Body C Bicycle

Claims (4)

[Claims] 1. A tubular shape having an opening at the tip,
On the base end side, a lock main body integrally provided with a fixed hook for locking the locked body, a cylinder lock mechanism embedded in the lock main body with the key hole facing the end face on the base end side, and inside the lock main body It is pivotally supported by a horizontally supported fulcrum shaft and is swingably attached along the length direction of the lock body.
A non-return pawl piece that abuts the operation pin at the inner end of the cylinder lock mechanism at its base end and swings in response to the operation of the cylinder lock mechanism, and an outer end portion of the other end opposite the fixed hook. A movable hook having a hook portion for locking the locked body, slidably fitted into the lock body through the opening of the lock body, and having a rack portion provided on one side engaged with the check claw piece. A motorcycle lock with a rod. 2. The lock for a motorcycle according to claim 1, wherein the movable hook rod has a return traction spring having a fixed end portion on the base end side of the lock body, which is connected to an inner end thereof. . 3. The fixed hook and the hook portion of the movable hook rod have hook portions facing each other inwardly, and the rack portion of the movable hook rod and the non-return pawl engaging with the rack portion are locked. 2. A rack and a non-return pawl that are inclined in a direction that allows sliding of the movable hook rod that is slidably fitted in the main body in the pushing direction.
Locks for motorcycles. 4. The fixed hook and the hook portion of the movable hook rod have hook portions that are bent back toward each other, and the rack portion of the movable hook rod and the check claw piece that engages with the rack portion, The lock for a motorcycle according to claim 1, further comprising a rack and a check claw that are inclined in a direction that allows sliding of the movable hook rod slidably fitted in the lock body in a pulling-out direction.