JP2557028Y2 - Lock device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a lock device in which a casing has a ring shape.

[0002]

2. Description of the Related Art A so-called ring lock having a casing in a ring shape has been widely used as a lock device for bicycles and the like. As shown in FIG. 7, the lock device includes a ring-shaped casing a having a cylindrical portion having both open ends a1, a1 and a ring-shaped bar piece slidably disposed in the casing a. b, and a long groove a2 along the casing a is formed on the upper surface on the left side of the casing a, and a bar operating portion b1 connected to the bar b is disposed outside the casing a from the long groove a2. By sliding the bar operating portion b1 forward along the long groove a2, the leading end of the bar b is guided from one end a1 of the casing a and enters the other end a1. An endless annular locking portion is formed by the and the bar b, which is locked in this state, and is unlocked by operating the key c. When this lock device is mounted on a bicycle as a bicycle lock device, as shown in FIG. 8, the lock device is mounted on a pair of seat stays S of the bicycle J by mounting brackets d of the lock device, and the tabs enter and exit the casing. As a result, the spoke P of the rear wheel K is engaged and disengaged to lock and unlock.

[0003]

However, in this case, since a long groove a2 is formed in the casing a, the child or the like can lock the long groove a2 while locking.
There is a case that a mischief such as an object being inserted is performed. If an object is inserted into the long groove a2, the bar operating section b1 may not be able to move the long groove a2, and as a result, the bar b will not be unlocked without returning to the inside of the casing a. In this case, the lock device cannot be used anymore, and the lock device cannot be removed. When the bicycle lock device is mounted on a bicycle, the bar operating unit b1 must be operated from the upper side. Therefore, in a bicycle provided with a loading platform, the loading platform becomes an obstacle to operate the bar operating unit b1. There is a problem that it becomes difficult. Also, if the long groove a
It is also conceivable to provide the 2 or bar operating section b1 on the side of the casing a and move it from the side of the casing a.
A dress guard may be provided on both sides of the rear wheel of the bicycle to prevent the skirt or the like from getting caught in the rear wheel. In this case, the dress guard obstructs the operation of the bar-side operating portion b1. It will be difficult to do.

[0004] The present invention has been proposed in view of the above circumstances, and does not impair the locking / unlocking function due to the mischief of a third party. It is an object of the present invention to provide a lock device that can respond.

[0005]

By operating a ring-shaped bar 2 slidably disposed in a ring-shaped casing 1 having a cylindrical portion having both end surfaces 12 and 13 opened. The tip of the bar 2 is guided from the one end 12 of the casing 1 and enters the other end 13, and the casing 1 and the bar 2
An endless annular locking portion is formed by this and the lock device is locked in this state, and unlocked by pulling back the bar 2 into the casing 1 with the operation of the key 7, the present invention relates to the following: The above problem is solved by providing a device having the characteristics described above. The first lock device according to the present invention is a bar 2
Is provided with a long operation piece 3 for operating. One end of the operation piece 3 is locked at an appropriate position of the bar 2 in the casing 1. The other end of the operation piece 3 is guided to the outside from an appropriate position of the casing 1 so that an operation grip portion 32 capable of pulling the operation piece 3 is formed outside the casing 1. The operation piece 3 is disposed in the casing 1 so that the operation piece 3 can be sequentially pulled out of the casing 1 from the other end side in accordance with the pulling operation of the operation grip portion 32. (1) The casing 1 moves from the one end face 12 to the other end face 13 as it is pulled out.

[0006] The operation piece 3 of the second lock device according to the present invention is made of a bendable one. An appropriate portion from one end to the other end of the operation piece 3 comes into contact with the outer peripheral surface of the ring-shaped bar piece 2 when unlocking, so that the operation piece 3 is locked when the operation gripper 32 is pulled. It is arranged in the casing 1 so as to be sequentially unwound from the piece 2.

[0007]

In the first lock device according to the present invention, the elongated operation piece 3 is inserted into the casing 1 so that the operation piece 3 can be sequentially pulled out of the casing 1 from the other end as the operation grip portion 32 is pulled. When the operation piece 3 is pulled out of the casing (1), the bar 2 is moved so as to enter the casing 1 from one end surface 12 side to the other end surface 13 side. By doing so, the other end of the operation piece 3 can be guided outside the casing 1 without providing the casing 1 with a long groove for movable operation of the bar piece as in the related art, and the inside is completely formed by the casing 1. Can be covered. Therefore, it is possible to prevent a situation in which an object is inserted into the long groove and becomes unusable by a third party as in the related art. Moreover, in production,
It is not necessary to form a long groove in the casing 1, and the casing 1 can be easily manufactured at low cost. On the other hand, the bar 2 is connected to one end face 1 of the casing 1.
The locking operation from the 2 side to the other end surface 13 side may be performed by pulling out the operation piece 3 and pulling it out, without having to operate along the casing 1 as in the related art, and a bicycle provided with a carrier, a dress guard and the like. Even if they are attached to the, they can be easily operated without disturbing them.

In the second lock device according to the present invention, the operation piece 3 is made of a bendable one, and
An appropriate portion from one end to the other end of the operation piece 3 is brought into contact with the outer peripheral surface of the bar-shaped piece 2 having a ring shape in the casing 1 when unlocking, and the locking accompanying the pulling operation of the operation grip portion 32 is performed. At this time, since the wire pieces 30 are pulled out, the wire pieces 30 receive the pulling force by the wire pieces 30 and also receive the pressing force in the radial direction at the same time as the wire pieces 30 are pulled out. The bar 2 can be moved while rotating along the inner surface of the casing 1, and can be smoothly inserted from the one end 12 to the other end 13 of the casing 1.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a front view of an embodiment of the lock device of the present invention, and FIG. 2 is a rear view thereof.

The lock device according to the present embodiment is a lock device for a bicycle. As shown in FIGS. 1 and 2, a casing 1, a bar 2 that moves within the casing 1, and an operating piece 3 are provided. A lock body 4 for locking and unlocking, and a mounting bracket 5 for mounting on a bicycle.

In this embodiment, the casing 1 is
The upper casing 1a has a ring shape and the lower casing 1b is also made of a ring-shaped metal. The upper casing 1a and the lower casing 1b are fixed to each other so as to slide the bar 2 inside. A space is formed so that it can be disposed as much as possible. As shown in FIG. 3, the upper casing 1a is made of a metal casing 1c made of metal.
The cover member 1d made of synthetic resin is covered from above.

As shown in FIG. 1, both ends of the casing 1 constructed as described above are respectively opened, and a bar insertion hole 12 and a bar receiving hole 13 for inserting and removing the bar 2 are formed. Have. An operation piece insertion hole 14 formed by drilling the upper casing 1a is provided on the left side of the bar insertion hole 12.

The bar 2 has a U-shaped cross section as shown in FIG. 3 and is made of a metal rod having the same shape as the casing 1 as shown in FIG. As shown in FIG. 4, a locking hole 21 formed by cutting one side surface at a predetermined width is provided at substantially the center of the bar 2 in the front and rear directions. A locking plate 22 is provided slightly behind the locking hole 21. The locking plate 22 has a through hole 22a at substantially the center, and is fixed to the bar 2 so as to block the inside of the bar 2. The bar 2 thus formed is disposed in the casing 1 so as to be freely movable in the casing 1, and the bar 2 is always urged by a bar spring urging coil spring 8 connected to the rear end. It is urged to be pulled inward.

The operation piece 3 is for pulling the bar piece 2 and, in this embodiment, is composed of a wire piece 3 as shown in FIG. In the unlocked state shown in FIG. 4, the central portion of the operation piece 3 is disposed inside the casing 1 in a state of being wound so as to be wound along the front-rear direction of the outer surface of the bar 2. .

The rear end side of the wire piece 3 is guided into the inside of the bar 2 from the locking hole 21 of the bar 2 in the casing 1 and then passed through the through hole 22a of the locking plate 22. A locking piece 31 is attached to the rear end of the wire piece 3 passed through the operation piece insertion hole 14, and the range from the locking plate 22 inside the bar piece 2 to the rear end of the bar piece 2 can be freely adjusted. It is arranged to be able to move to.

On the other hand, the front end of the operation piece 3 is
Is guided through the operation piece insertion hole 14 formed in the casing 1 to the outside of the casing 1. An operation gripping member 32 is attached to the front end side guided to the outside of the casing 1,
By pulling the operation gripping member 32,
The wire pieces 3 are sequentially drawn out of the casing 1 from the front end side.

In this embodiment, the wire piece 3
Is provided with wire urging means. This wire urging means always urges the wire piece 3 inward of the casing 1 and is constituted by a coil spring. The wire biasing coil spring 6 includes a locking piece 31 of the wire piece 3 and a locking plate 22 of the bar piece 2 inside the bar piece 2.
And both ends thereof are a locking piece 31 and a locking plate 22.
It is urged to abut each of them to pull them apart.

The wire urging means 6 is not limited to the one using a coil spring, but may be any one which can urge the wire piece 3 inward of the casing 1 and can be changed as appropriate. Further, the wire urging means 6 is not necessarily provided, but may be provided as needed. When the wire urging means 6 is not provided, the locking piece 31 may not be provided at the rear end of the wire piece 3 but may be directly locked to the bar piece 2.

As shown in FIG. 4, the lock main body 4 has a bar-shaped locking member 41 projecting in the bar bar 2 direction at the lower end. The bar locking member 41 is constantly urged clockwise, and is in contact with the outer peripheral surface of the bar 2 in the unlocked state. Then, as shown in FIG. 5, the bar 2 is inserted into the locking hole 21 of the bar 2 while the bar 2 is inserted into the bar receiving hole 13 from the bar insertion hole 12 of the casing 1. Lock, thereby maintaining the locked state. The key piece 7 inserted into the lock body 4 from the top side of the lock body 4
By rotating in accordance with the rotating operation (shown in FIGS. 1 and 2), the bar locking member 41 is turned into the locking hole 2 a of the bar 2.
It can be unlocked from outside.

As shown in FIG. 2, the mounting brackets 5 are respectively mounted on a left portion and a right portion of the lower portion of the casing 1 and fixed to the bicycle seat stay, thereby fixing the lock device to the bicycle. It has been made.
In the case where the lock device of the present invention is not locked as a bicycle lock device, but locked by locking two articles such as gates,
What is necessary is just to use it in the state which removed this mounting bracket 5.

Next, a method of locking and unlocking the lock device will be described. In order to lock, the operation gripping member 32 of the wire piece 3 is first pulled forward from the unlocked state shown in FIG. The pulling direction is not limited to the forward direction (X direction in the figure), but may be obliquely forward (Y and Z directions in the figure). Thereby, the bar piece 2 connected to the wire piece 3 starts to move inside the casing 1, and the wire piece 3 is pulled out of the casing 1 from the tip end side. Further, as the wire piece 3 is pulled out, the bar piece 2 comes out of the bar piece insertion port 12 of the casing 1 and enters the bar piece receiving port 13 as shown in FIG. At this time, since the wire piece 3 is pulled so as to be unwound from the outer periphery of the bar piece 2, the bar piece 2 receives the pulling force in the forward direction by the wire piece 3 and also receives the pressing force in the radial direction. As a result, the bar 2 moves so as to rotate. Accordingly, the bar 2 can smoothly enter the bar receiving port 13 from the bar insertion opening 12 of the casing 1. When the locking hole 21 of the bar 2 and the bar locking member 41 of the lock body 4 match as shown in FIG. 5, the bar locking member 41 fits into the locking hole 21. This allows
The bar 2 is locked and is in a locked state.

In the locked state, the wire piece 3 that has been pulled is released. Thereby, the rear end side of the wire piece 3 is pulled back by the coil biasing coil spring 6, and only the wire piece 3 is stored in the casing 1 as shown in FIG.

To unlock, the key piece 7 of the lock body 4 is rotated. As a result, the bar engaging member 41 rotates counterclockwise to come off from the locking hole 2a of the bar 2 and the bar 2 is returned to the original position shown in FIG. It is pulled back to the state of. At this time, since the wire piece 3 has already been pulled back into the casing 1 as described above, only the wire urging coil spring 6 is contracted without being moved, and the state shown in FIG. 4 is obtained.

With the above configuration, when locking, the operation gripping member 32 may be pulled toward the front side of the casing 1, whereby the lock device of the present invention can be mounted on a bicycle provided with a carrier, a dress guard, and the like. Even if they are attached to the, they can be easily operated without disturbing them.

Further, since the lock can be locked by pulling out the wire piece 3, the casing 1 does not need to be provided with a long groove for the movable operation of the bar piece.
Can be completely covered by. Therefore, it is possible to prevent a situation in which a third party inserts an object into the long groove and becomes unusable as in the related art, and the reliability of the lock device can be improved. Also, in manufacturing, the casing 1 does not need to be provided with a long groove, and can be manufactured easily and at low cost.

In this embodiment, the operation piece 3 is made of a wire which can be freely bent. However, the present invention is not limited to this.
Any material having an appropriate tensile strength may be used. For example, a string-like material similar to a wire or a thin plate such as a steel plate may be used. Further, it is not necessary to be able to bend freely, and it may be constituted by a rod-shaped body. In the case of the rod-shaped body, the bar 2 is not wound around the bar 2 as in the above-described embodiment, and cannot be moved while rotating the bar 2 by the rotation force of the operation piece 3. To move from the bar insertion slot 12 of the casing 1 to the bar reception slot 13
Can be put in.

Further, in this embodiment, the operation holding portion 32 of the wire piece 3 is provided on the front side of the lock body 4 so that the wire piece 3 is pulled toward the front side. For example, a portion on the rear side of the lock body 4 (A in FIG. 4)
), And may be provided at an appropriate position of the casing 1 such as pulling the wire piece 3 to the side, and can be changed as appropriate. Further, a guide groove may be provided on the outer peripheral surface of the bar 2 so that the wire 3 may be inserted into the guide groove when the wire 3 is wound around the outer peripheral surface of the bar 2. At this time, the wire piece 3 can be securely wound.

Further, in the present embodiment, the rear end side of the wire piece 3 is guided into the inside of the bar 2 through the locking hole 21 using the locking hole 21. However, the present invention is not limited to this mode. Bar piece 2
It is sufficient to provide guidance separately by providing a hole at an appropriate position separately,
It can be changed as appropriate.

[0029]

[Effect of the Invention] As described above, the first lock device according to the present invention is:
Even if the casing does not have a long groove for the movable operation of the bar piece as in the conventional case, the other end of the operation piece may be guided outside the casing, and the inside can be completely covered by the casing. Can be prevented from being unusable by inserting an object into the long groove by a third party. In addition, even in the manufacture, it is not necessary to form a long groove in the casing 1, and the manufacture can be easily performed at low cost. On the other hand, the locking operation of inserting the bar piece from one end side of the casing to the other end side may be performed by pulling out the operation piece and pulling out the operation piece, which does not need to be operated along the casing as in the conventional case. Even when the bicycle is attached to a bicycle provided with a dress guard or the like, it can be easily locked without disturbing the bicycle and can be widely used as a bicycle lock device.

Further, the second lock device according to the present invention can be moved while rotating the bar piece along the inner surface of the casing as the wire piece is pulled out, so that the bar piece is smoothly moved to the casing 1. It can be inserted from the end face side to the other end face side.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the lock device of the present invention.

FIG. 2 is a rear view of one embodiment of the lock device of the present invention.

FIG. 3 is an end view along the line III-III in FIG. 1;

FIG. 4 is a bottom view of the unlocked state with the lower casing removed.

FIG. 5 is a bottom view of the locked state with the lower casing removed.

FIG. 6 is an explanatory view showing a state where a wire piece is pulled back into a casing.

FIG. 7 is a front view of a conventional example.

FIG. 8 is an explanatory view of a state in which the conventional example is attached to a bicycle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Bar piece 3 Wire piece 4 Lock body part 5 Mounting bracket 6 Coil spring 7 Key piece 14 Operating member insertion hole 21 Locking hole 32 Operation gripping part 41 Bar tab locking member

Claims (2)

(57) [Scope of request for utility model registration] A ring-shaped bar (2) slidably disposed in a ring-shaped casing (1) having a cylindrical portion with open both end surfaces (12, 13). As a result, the tip of the bar (2) is guided from the one end (12) side of the casing (1) and enters the other end (13), where the casing (1) and the bar (2) are endless. The lock is formed in this state,
In the lock device that is unlocked by pulling back the bar (2) into the casing (1) in accordance with the operation of (7), the lock device has a long operation piece for operating the bar (2).
(3), one end of the operating piece (3) is locked at an appropriate position of the bar (2) in the casing (1), and the other end of the operating piece (3) is
An operation gripper (32) that can pull the operation piece (30) is formed outside the casing (1) by being guided to the outside from an appropriate position of (1), and the operation piece (3) is operated by the operation piece (3). The bar (2) is arranged in the casing (1) so that it can be sequentially pulled out of the casing (1) from the other end side with the pulling operation of the grip (32).
Is moved from one end (12) of the casing (1) to the other end (13) of the casing (1) as the operating piece (3) is pulled out of the casing (1). And lock equipment. The operating piece (3) is formed of a bendable part, and an appropriate portion from one end to the other end of the operating piece (3) is formed by a bar-shaped piece (2) that forms a ring shape when unlocking. It is disposed in the casing (1) so as to be wound around the outer peripheral surface and to be sequentially unwound from the bar (2) when locking in accordance with the pulling operation of the operating grip (32). The lock device according to claim 1, wherein