JPH08156856A - Lock for bicycle - Google Patents

Abstract

PURPOSE: To mount a lock to a locking part while keeping it in a tension condition without any slack and to facilitate locking operation in a lock which is installed in a handle or a wheel of a motorcycle or a bicycle. CONSTITUTION: A lock for a bicycle is provided with a lock body 1, in which a hook part 2 is provided in one end while a lock mechanism 10 is built in with a lock hole part, 4 faced to the other end and a slide guide groove 5 is arranged on the lower face, and a locking movable member 8, which is provided with a pressing part, 7 facing the hook part 2 and a rack member 6 and is fitted in the slide guide groove 5 in the lock body 1 freely slidably, and a part to be locked is clamped between the hook part 2 and the pressing part 7, and a stopper piece 13 driven by a locking action body 12 in a lock mechanism is hooked and stopped in the rack part, 6 in this clamping position, and consequently, the part to be locked is locked tensionally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock for a motorcycle, which is attached to a handlebar and a brake lever portion of a motorcycle or a bicycle, a body portion and a wheel portion or a wheel, and locks the motorcycle so that it cannot run. A lockable movable member with a rack part of an appropriate length is slidably fitted in the built-in lock body, and the sliding position of this lockable movable member is locked by the operation of the lock mechanism. And

[0002]

2. Description of the Related Art Among conventional locks for two-wheeled vehicles, locks for locking a handle and a brake lever are disclosed, for example, in Japanese Utility Model Publication No. 4-7293 and Japanese Utility Model Publication No. 6-51095. Also, before the lock to lock the car body and wheels,
For example, as in Japanese Utility Model Laid-Open No. 5-12568, which is integrally attached to a vehicle body to lock wheels by a locking rod, there are wire locks, for example, Japanese Utility Model Laid-Open No. 6-75372, which cannot rotate wheels. For example, Japanese Unexamined Utility Model Publication No. 6-39686 discloses a device to be locked.

[0003]

In both of the conventional locks for locking the handlebar and the brake lever, the brake lever is provided with a hole (the former) or the brake lever itself is provided with a ratchet (the latter). Therefore, there is a structural problem that it is difficult to attach it to a completed motorcycle and it is difficult to put it into practical use.

Further, the conventional locks for locking the vehicle body and the wheel portions or the wire locks have a problem that they have a large outer shape and are difficult to carry, and they cannot be used to tighten two objects to be locked. However, there is a problem that only a loose lock that allows a certain degree of movement within the annular closed space provided in the lock can be performed.

Further, the lock disclosed in Japanese Utility Model Laid-Open No. 6-39686, which is mounted on a wheel to prevent rotation during locking, has a narrow and constant interval between the clamping pieces closed by the lock rod. However, there is a drawback that it can be used only for a specific portion that fits within the space.

For this reason, it is not necessary to process the vehicle body equipped with a lock and the locked portion can be locked in a tightened state, and the locking operation can be facilitated. It was a problem to be solved in the lock.

[0007]

SUMMARY OF THE INVENTION Therefore, according to the present invention, at one end, a hook portion that curves from the lower side toward the front side is provided,
On the other side, the keyhole part of the built-in lock mechanism is exposed, and the lock device body with the slide guide groove opened along the lower surface and the rack part of an appropriate length on the upper surface are provided. The locker is provided so as to be fitted in the guide groove so as to be capable of advancing and retreating in opposition to the hook portion, and a locking movable member integrally hung on a lower portion of the pressure contact portion for blocking an open portion of the hook portion. A stopper piece that slidably engages and disengages the hooking claw provided at one end with the rack portion is slidably fitted into the body, and the locking operation body of the lock mechanism is attached to the fitting portion provided on the side surface of the stopper piece. A lock for a two-wheeled vehicle, characterized in that the lock is adapted to be engaged with and separated from the stopper piece and the rack portion by the operation of the locking operation body.

According to the lock of the present invention, a bar bar is provided at the press-contacting portion of the locking movable member so as to face the lower part of the hook part of the lock body, and the bar bar is provided at the lower part of the hook part at the time of locking. By providing a locking hole for fitting the lock bar, the bar bar protruding from the pressure contact part of the locking movable member that is brought close to the hook part of the lock body is fitted into the locking hole at the bottom of the hook part to lock By forming it in a ring shape, it is possible to form a stronger locked state.

Further, according to the lock of the present invention, the hook portion of the lock body having the front lock mechanism is formed on the large-diameter hook portion to which one of the bicycle body is fitted, and the lockable member having the rack portion is provided. By forming the press contact portion into a hook shape that is opposed to the large-diameter hook portion and fits the other side of the bicycle body,
It can be attached to a motorcycle such as a bicycle that has a relatively small body and tires to lock two parts of the body, or a large-diameter hook part and a hook-type pressure contact part on the locking movable member side. It is also possible to clamp the vehicle body, for example, a tire between them to prevent rotation.

[0010]

With the lock of the present invention constructed as described above, it is not necessary to perform special processing on the portion where the lock is mounted. In addition, since the pushing of the locking movable member that locks the two parts of the vehicle body at the distant positions while biasing them in the direction of pressing each other is guided by the fitting of the rack portion and the slide guide groove, the locking is performed. Operation can be done smoothly.

Further, when the locking actuating member reaches the desired tightening position while being guided by the slide guide groove, if the pushing is stopped, the rack portion can be hooked on the stopper piece at that position. Therefore, it is possible to always lock in a tight state without slack. As described above, the present invention has solved the above-mentioned conventional problems.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. As in the first embodiment shown in FIG. 1, the lock A of the present invention is provided with a hook portion 2 that bends from one side (left side in the drawing) toward the front side (right side in the drawing) at one end (left side in the drawing), and is incorporated in the other side surface 3. A lock body 1 in which a key hole portion 4 of a lock mechanism described later is exposed and a slide guide groove 5 is opened along the lower surface, and a rack portion 6 of an appropriate length is provided on the upper surface.
Is fitted in the slide guide groove 5 of the above and is capable of advancing and retreating in the left-right direction in the drawing so as to face the hook portion 2, and a pressure contact portion 7 that shuts off the open portion of the hook portion 2 is integrally hung at the lower portion to lock. The movable member 8 is provided.

In the lock body 1, the lock mechanism 10 is fitted in a cylindrical accommodating portion 9 opening on the other side surface 3, and an inner end portion facing the keyhole portion 4 is provided with a rotation operation of a key 11. The locking operation body 12 that is driven to rotate is projected. Reference numeral 13 denotes a plate-shaped stopper piece provided on both sides of the pair of left and right vertical grooves 14 formed on both sides of the inner end of the accommodating portion 9 so as to be slidable.
Fit the locking actuating body 12 into the fitting hole 15 opening on the side surface,
The lock actuating body 12 moves up and down by 90 ° rotation.

The stopper piece 13 has a hook claw 16 at a position where it engages with the rack portion 6 at the lower end, and is constantly urged in the descending direction by a compression spring 17 attached to the upper end surface. In the unlocked state, it is supported at the raised position by the locking actuating body 12. The locking actuating body 12 is provided with a long diameter portion a and a short diameter portion b by cutting a cylindrical shaft on two opposite side surfaces,
The locking actuating body 12 is pushed up to the raised position by the long diameter portion a and the short diameter portion b is positioned on the upper surface so that the stopper piece 13 can be lowered as shown in FIG. Incidentally, reference numeral 18 in the drawing denotes a pin for fixing the lock mechanism 10 in the housing portion 9.

When the locking movable member 8 is moved to the left side as shown in FIG. 2 from the unlocked state of FIG. 1, the open portion of the hook portion 2 which has been opened is narrowly cut off by the forward pressure contact portion 7. In this state, when the key 11 is rotated in the locking direction, the long diameter part a and the short diameter part b of the locking actuating body 12 in the fitting hole 15 are replaced with each other, and the stopper piece 13 lowered as shown in FIG. The latching claw 16 at the lower end is fitted into the rack portion 5, and the locked state in which the locking movable member 8 is prevented from retreating is obtained.
In the illustrated embodiment, the lock mechanism 10 uses a well-known cylinder lock mechanism that is used for a conventional lock, and the key 11 after the locking operation is a keyhole (not shown) as in the conventional lock. You can carry it out from the car.

When the handle and the brake lever of a motorcycle or a bicycle are locked by using the lock A having the above structure, the hook portion 2 of the lock body 1 is attached to the handle grip 19 as shown in FIG. The pressure contact portion 7 of the locking movable member 8 is fitted to the brake lever 20 fitted along the handle, and the locking movable member 8 is pushed to the grip 19 side against the repulsion of the brake lever 20. When the key 11 is locked and the key 11 is locked, the stopper piece 13 operates as described above to lock the brake.

Before pushing the locking movable member 8, the key 11 is pushed.
If the rack is rotated in the locking direction, the rack portion 6 that tilts in one direction moves forward while rubbing the tip of the hook 16 of the stopper piece 13 that has descended, and by stopping the pushing at the desired position, Since the rack portion 6 at the stop position and the latching claw 16 of the stopper piece 13 are engaged with each other to prevent the locking movable member 8 from retreating, it is possible to lock the key 11 first. The inner side surface of the hook portion 2 is an uneven surface, and is configured to be firmly fitted to the grip 19.

Next, a second embodiment will be described with reference to FIGS. The lock A2 according to the second embodiment has substantially the same structure as the lock A according to the first embodiment, but the pressure contact portion 7 of the locking movable member 8 is extended downward so that the lock portion A2 is located below the hook portion 2 of the lock body 1. The bar rods 21 projecting oppositely are provided, and the lower part of the hook portion 2 is shown in FIG.
As shown in FIG. 2, a locking hole 2 into which the bar bar 21 is fitted at the time of locking.
2 is provided so that the lock A of the present invention can be locked more firmly.

In the lock A of the first embodiment, the hook portion 2 and the pressure contact portion 7 of the locking movable member 8 are separated at the time of locking, but the bar bar 21 provided in the pressure contact portion 7 as in the second embodiment. By fitting the hook into the hooking hole 22 of the hook portion 2, the open portion of the hook portion 2 is completely blocked, and a stronger lock can be achieved, giving the user a sense of security. The retaining hole 22 may be a groove having an open inner surface or lower surface.

The lock of the present invention may be attached to the handlebar and the brake lever, and may be used to lock the bicycle tire and the vehicle body, or to be attached to the bicycle tire for locking.

As shown in FIG. 7, the tire 23 of the bicycle B is
In the lock A3 of the third embodiment for locking the vehicle body 24 and the vehicle body 24, the hook portion 2 of the lock body 1 is extended forward by an appropriate length so that the tire 23 can be fitted from the side surface, and the lock portion A3 has a large diameter hook portion. The pressure contact portion 7 of the locking movable member 8 formed to face the large-diameter hook portion 2 and to which the vehicle body 24 of the bicycle B is fitted allows the vehicle body 24 to be fitted from the same side as the hook portion 2. It is formed into a shape.

The lock A3 has a lock mechanism of the same structure as the lock A of the first embodiment, and operates in the same manner, though the explanation and detailed illustration thereof are omitted. The press-contact position of the hook-shaped press-contact part 7 with respect to the extended large-diameter hook part 2 is locked by locking a stopper piece and a rack part connected to a locking actuating body of a built-in lock mechanism (not shown).

Similarly, the lock A4 of Example 4 shown in FIG.
As shown, the large-diameter hook portion 2 is not extended, and the other structure is the same as the lock A3 of the third embodiment. The lock A4 is attached to the tire 23 of the bicycle B and locked. That is, the rear tire 23 is sandwiched from the side by the hook portion 2 on the locker body side and the hook-shaped pressure contact portion 7 on the locking movable member side, and the contact position of the locking movable member 8 is locked by the stopper piece and the rack portion. When locked, the lock A
4 supports rear hawk and blocks run.

The lock mechanism usable in the lock of the present invention is not limited to the cylinder lock mechanism described above, but the hook plate swings about the fulcrum shaft when the lock mechanism other than the lock mechanism, for example, a key is inserted. It is also possible to use a locking mechanism that slides or slides to convert the swinging or sliding stroke of the hook plate into the lifting stroke of the stopper piece 13 of the lock of the present invention. It may be an example of a design change of the invention. In this case, the exposed side surface of the keyhole of the lock mechanism may be different from the position in the embodiment.

[0025]

As is apparent from the above description, the hook portion is provided with the lock body provided with the hook portion and the locking movable member slidably fitted in the lock body provided with the rack portion. The body of the vehicle is tightly clamped between the lock contact part and the pressure contact part on the side of the locking movable member, and the hook part is prevented from retreating by the stopper piece connected to the lock actuating body of the lock mechanism built into the lock body. According to the lock of the present invention which is adapted to be locked, the pushing operation of the locking movable member is guided by the fitting of the rack portion and the slide guide groove into which the rack portion is fitted, so that the locking operation can be performed smoothly.

When the locking actuating member reaches the tightening position of the locking member while being guided by the slide guide groove,
When the pushing is stopped, the rack is locked by the stopper piece at that position and locked, so that the locking position can be fixed without slack.

The lock of the present invention used as described above has various types such as a lock for locking the handle and the brake lever, a lock for locking the vehicle body and the wheel, and a lock attached to the wheel to prevent rotation. It is expected to be used as most locks for motorcycles.
The present invention has extremely excellent effects as described above.

[Brief description of drawings]

FIG. 1 is a partially longitudinal side view showing an unlocked state of Embodiment 1 of the present invention.

FIG. 2 is a partially cutaway side view showing a locked state of the same as above.

3 is an enlarged cross-sectional view taken along line X-X 'of FIG.

FIG. 4 is a partially cutaway side view showing a usage state.

FIG. 5 is a partially cutaway side view showing a usage state of the second embodiment.

FIG. 6 is a partially cutaway side view showing an unlocked state of the second embodiment.

FIG. 7 is a perspective view showing Embodiments 3 and 4 of the present invention in use.

[Explanation of symbols]

 A lock (A2, A3, A4) 1 lock body 2 hook part 3 other side surface 4 key hole part 5 slide guide groove 6 rack part 7 pressure contact part 8 locking movable member 9 accommodating part 10 locking mechanism 11 key 12 locking actuating body a long diameter Part b Short-diameter part 13 Stopper piece 14 Vertical groove 15 Fitting hole 16 Latching claw 17 Compression spring 18 Pin 19 Grip 20 Brake lever 21 Bar bar 22 Latching hole B Bicycle 23 Tire 24 Body

Claims (3)

[Claims] 1. A locker having at one end a hook portion that bends from the lower side toward the front side, the key hole portion of a built-in lock mechanism is exposed at the other side surface, and a slide guide groove is opened along the lower surface. A body and a rack portion of an appropriate length are provided on the upper surface, and together with this rack portion, the rack portion is fitted in the slide guide groove of the locker body so as to be capable of advancing and retreating in opposition to the hook portion.
A lockable movable member that integrally hangs a pressure contact portion that shuts off the open portion of the hook portion is provided, and a stopper piece that causes a hook claw provided at one end to contact with and separate from the rack portion is slidable inside the locker body. The locking actuation body of the lock mechanism is fitted to the fitting portion provided on the side surface of the stopper piece, and the stopper piece and the rack portion are driven to contact and separate by the operation of the locking actuation body. A lock for a motorcycle, which is configured as described above. 2. A bar bar that protrudes to face the lower part of the hook part of the lock body is provided at the pressure contact part of the locking movable member, and the bar bar is fitted to the lower part of the hook part when locking. The lock for a motorcycle according to claim 1, wherein a lock hole is provided. 3. A hook portion of a locker body incorporating the lock mechanism is formed on a large-diameter hook portion into which one side of a bicycle body is fitted, and a press contact portion of a locking movable member including the rack portion. The lock for a two-wheeled vehicle according to claim 1, wherein the lock is formed in a hook shape so as to face the large-diameter hook portion and fit the other side of the bicycle body.