JP3858161B2 - Bicycle lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bicycle lock, and is characterized in that a locking / unlocking operation of a circle lock attached to a bicycle seat pipe and a bicycle stand standing and releasing operation can be performed simultaneously.
[0002]
[Prior art]
The conventional bicycle includes a stand for holding the bicycle in an upright state on the rear wheel axle separately from the bicycle lock that locks the tire, and the lock unlocking operation and the stand operation for the lock are performed separately. Examples of bicycle locks that can be remotely operated for locking and unlocking operations at the handle portion and the like include, for example, Japanese Utility Model Publication No. 6-29179 and Japanese Utility Model Publication No. 7-6442.
[0003]
[Problems to be solved by the invention]
The conventional bicycle in which the opening / closing operation of the lock attached to the vehicle body and the stand operation are separately performed is complicated in operation. For this reason, it has been a problem to be solved to develop a bicycle lock that can perform a lock unlocking operation and a stand operation at the same time as a bicycle lock.
[0004]
[Means for Solving the Problems]
Therefore, in order to solve the above-mentioned problem, the present invention has a case integrally provided with a circle lock fixed to the bicycle seat pipe along the length direction and locking the rear tire of the bicycle at an intermediate portion. With a rack part, the operation part protrudes from the case, and the lock operating rod fitted in the case so that it can be raised and lowered, and the lower part of the opened case is fitted so that it can be raised and lowered. An eccentric spring is stretched between the link member and the link member connected to the lower end of the operation rod while being always urged in the upward direction together with the locking operation rod. A stand member pivotally attached to the lower end portion of the link member so that the upper end portion can be slightly swung, and the stand member is pushed out from the lower end of the case to the link member that descends with the lowering operation of the locking operation rod. In this case, a pinion that meshes with a rack portion on one side of the operation rod is rotatably provided in the case, and the pinion is rotatably provided in the circle lock. By engaging with a rack portion provided at the lower edge of the arc-shaped lock rod, the lifting and lowering of the locking operation rod and stand rod and the reciprocating rotation of the arc-shaped lock rod of the circle lock are interlocked with each other. It is configured so that the restoration of the stand member and the unlocking of the lock are held by the lock of the circle lock, and the unlocking operation of the key provided in the circle lock is restored to the unlocked position and the non-use position, respectively. A bicycle lock is provided.
[0005]
According to the present invention configured as described above, the stand can be raised and restored at the same time as the bicycle is locked and unlocked.
That is, as shown in FIG. 2, when the locking operation rod protruding to the side of the case fixed to the bicycle seat pipe is pushed down against the traction spring, it is pushed out by the descending link member and the stand member is lowered together. In the middle of the lowering, the stand member acting on the eccentric spring is slightly inclined with the pivot point of the link member as a fulcrum and contacts the lower part of the seat pipe. On the other hand, when the locking operation rod is pushed down, the pinion that meshes with the rack portion rotates, and the arc-shaped lock rod fitted to the circle lock through the rack portion is moved to the illustrated locking position against the restoring spring. Move forward. The lock rod advanced to the lock position is automatically locked in the locked state by the operation of the lock mechanism provided in the circle lock.
[0006]
When the lock rod is locked as described above, the locking operation rod connected through the pinion is prevented from rising, and the stand member is maintained in the grounded state.
Needless to say, the repositioning of each member is performed by an unlocking operation of a key provided in a circle lock for locking the lock rod.
[0007]
【Example】
As shown in the figure, a bicycle lock according to the present invention includes a case 1 fixed to a seat pipe b of a bicycle B, a locking operation rod 2 fitted up and down in the case, and a lower end of the locking operation rod 2. The stand member 4 that is connected to the portion through the link member 3 so as to be slightly swingable and expands and contracts below the seat pipe b, the eccentric spring 5 for tilting the stand member, and the case 1 And a circle lock 6 provided so as to lock the rear tire t of the bicycle.
[0008]
As shown in FIG. 2, the case 1 has a cylindrical shape along the length direction of the seat pipe b, with the lower end appropriately widened and opened, and is integrally provided with a circle lock 6 at a substantially right angle in the middle.
The locking operation rod 2 has an operation portion 7 extending to the side of the upper end protruding outside the case, is formed in a U-shaped cross section and is fitted in a rectangular case, and is provided on one side edge 8 is engaged with a pinion 9 rotatably supported in the case, and the rack portion 8 is driven to move up and down the locking operation rod 2 to rotate the pinion 9 forward and backward.
[0009]
The locking operation rod 2 is always pulled upward by the urging force of the traction spring 10 having one end attached to the upper back surface of the case 1 and the other end attached to the upper portion of the link member 3.
[0010]
The stand member 4 is connected via a fulcrum shaft 11 and an eccentric spring 5 to a link member 3 that fits in the lower part of the case 1 that is formed wider, and the link member 3 is the lower end of the U-shaped locking operation rod 2. The urging force of the traction spring 10 is transmitted to the urging force of the operating rod 2 by fitting the flat upper end thereof.
Then, the stand member 4 has the fulcrum shaft 11 as a fulcrum by the pulling action of the eccentric spring 5 during the descending process of the link member 3 descending from the lower end of the case 1 when the locking operation rod 2 is lowered by pushing down the operation portion 7. It swings slightly at the lower end of the slightly wider case 1 and changes to a tilted posture to make contact with the ground.
[0011]
The circle lock 6 has a conventionally known lock mechanism having a key 12, for example, a lock mechanism (not shown) similar to that disclosed in Japanese Patent Application Laid-Open No. 8-120994. Decorated with.
[0012]
In this embodiment, the arc-shaped lock rod 13 is provided with a rack portion 14 at the lower edge that is the outer side of the arc, and the rack portion 14 is engaged with the pinion 9 so that the locking operation rod is interposed via the pinion 9. Advancing and retreating as 2 moves up and down. The lock rod 13 is engaged with a hook plate (not shown) provided in the locking mechanism and a latching portion (not shown) provided on the side of the lock rod 13 in the same manner as a conventionally known circle lock. The locked position shown in FIG. 2 is held. Next, when the latching by the cover plate is released by the unlocking operation of the key 12, the restoring spring 15 is returned to the unlocked position by the pulling action.
[0013]
When the circle lock 6 is locked as described above, the rotation of the pinion 9 and the return of the locking operation rod 2 by the traction spring 10 are prevented by the lock rod 13 that is prevented from being retracted by the locking mechanism of the circle lock 6. The grounding of the member 4 is maintained in use (see FIG. 3a). Further, when the circle lock 6 is unlocked, the locking operation rod is raised in conjunction with the retraction of the returning lock rod 13 and the reverse rotation of the pinion 9, and the stand member 4 is returned to the non-use state simultaneously. (See FIG. 3b).
[0014]
It should be noted that aspects of the case 1, the locking operation rod 2, the link member 3, the stand member 4, the circle lock 6, and the like are not limited to the illustrated embodiment, but are in accordance with the gist of the present invention. Needless to say, the design will be changed.
[0015]
【The invention's effect】
As described above, according to the present invention in which the stand stand and the return to the non-use state can be simultaneously performed by one operation together with the locking operation and the unlocking operation, the use of the bicycle becomes much simpler and more comfortable. Become. In addition, by moving the position of the stand from the rear wheel to the position of the seat pipe, the bicycle can be stably stopped and the pedal cannot be rotated during locking. In addition, when not in use, the stand is lifted into the case and does not interfere with travel.
The present invention has excellent effects as described above.
[Brief description of the drawings]
FIG. 1 is a side view showing an embodiment of the present invention together with its use state. FIG. 2 is a partially cutaway enlarged perspective view schematically showing the structure of the embodiment. Is explanatory drawing of a locked state, (b) is explanatory drawing of an unlocked state.
[Explanation of symbols]
B bicycle b seat pipe t rear tire 1 case 2 locking operation rod 3 link member 4 stand member 5 eccentric spring 6 circle lock 7 operation portion 8 rack portion 9 pinion 10 traction spring 11 fulcrum shaft 12 key 13 lock rod 14 rack portion 15 restoration Spring

Claims (1)

A case with a circle lock that is fixed to the bicycle seat pipe along the length and has a circle lock that locks the rear tire of the bicycle in the middle, and a rack part on one side, and the operation part comes out of the case The locking operation rod fitted in the case so as to be movable up and down, and the above-mentioned locking operation rod is pulled up by a traction spring stretched between the lower end portion of the opened case and stretched between the case and the locking operation rod. At the same time, the link member connected to the lower end portion of the operation rod is urged in the upward direction, and an eccentric spring is stretched between the link member so that the upper end portion can be slightly swung so that the link member is free. And a stand member pivotally attached to the lower end of the lock, and the link member that descends with the lowering operation of the locking operation rod is pushed out from the lower end of the case so as to be grounded below the seat pipe. On the other hand, a pinion that meshes with the rack portion on one side of the operation rod is rotatably provided in the case, and the pinion is provided at the lower edge of the arc-shaped lock rod that is rotatably provided in the circle lock. By engaging the provided rack portion, the lifting and lowering of the locking operation rod and the stand rod and the reciprocating rotation of the arc-shaped lock of the circle lock are interlocked with each other, and the repositioning and locking of the stand member are performed. A bicycle lock configured to hold the bag unlocked by the lock of the circle lock and to return to the unlocked position and the non-use position by the unlocking operation of the key provided in the circle lock.

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