JPH0351495Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a bicycle key number combination lock that is unlocked by a push button.

[Conventional technology]

Conventionally known key number combination locks for bicycles have rotary key number combination locks attached to both ends of a wire, which is inconvenient as the wire must be removed and attached to the bicycle body each time it is used.

It was also used as a push-button bicycle lock in the 1970s.
- There is a method disclosed in Publication No. 8480, but when unlocking, it is troublesome to have to press multiple push buttons at the same time, and at the same time, it is impossible to change the combination of key numbers for the same part. There were flaws.

[The problem that the idea attempts to solve]

Therefore, this invention aims to provide a push-button type key number combination lock that uses a locking rod and is fixed to the vehicle body, and allows the combination of key numbers to be easily changed.

[Means to solve the problem]

In order to solve the above problems, this invention sequentially includes, from top to bottom, a suitable number of automatic return type unlocking push buttons, an anti-deciphering plate with a passage hole that matches the push buttons when locking, and the push buttons. A pin board having a pin insertion hole at a position corresponding to the push button, and a lock board having a pin insertion hole and a subsequent pin movement prevention hole portion at a position corresponding to the push button are stacked, and the lock board A press plate is placed at a distance below the pin board, and a pin with a concave portion offset toward the body is movably inserted into the pin insertion hole of the pin board and lock plate. The pins that are not inserted as key pins are inserted with the concave portion facing downward, and the anti-deciphering plate and the lock plate are provided to be slidable, and the anti-deciphering plate is interlocked with the lock plate so that the passage hole of the anti-deciphering plate is inserted. The passage hole of the anti-deciphering plate is moved to a position that does not coincide with the push button, and in conjunction with the press plate, the passage hole of the decoding prevention plate moves to a position that coincides with the push button.

〔Example〕

Embodiments of this invention will be described below based on the drawings.

Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is an enlarged sectional view taken along the line A-A' in Fig. 1, and Fig. 3 is an enlarged sectional view taken along the line B-B' in Fig. 1. The upper container frame 1 is provided with ten automatic return type unlocking push buttons P ₁ to P ₁₀ by return springs 15.
As shown in FIGS. 2 and 3, below the upper case frame 1, there are a pin board 7 and a sixth pin board 7 having pin insertion holes 7a at the same positions as the unlocking push buttons _P1 to _P10 . As shown in the figure, locks 5 each having a lock-like pin insertion hole consisting of a pin insertion hole 5a followed by a small pin movement prevention hole 5b are arranged one on top of the other, and the pin board 7 is fixed to the upper container frame 1. The lock plate 5 is attached to the upper container frame 1.
It is attached so as to move against the spring 14. 7' is an auxiliary pin board fixed to the upper container frame 1.

Each pin insertion hole formed by pin insertion holes 7a, 5a, 7, and a of these pin board 7, lock plate 5, and auxiliary pin board 7' has a position offset downward as shown in FIG. A pin 8 having a narrow diameter portion 8a (recessed portion) is inserted into each.

FIG. 8 is an enlarged cross-sectional view taken along line F-F' in FIG.
A plastic pipe 8b is bonded to the outer periphery of the large diameter portion of the pin, and its friction holds the pin 8 in any pressed position within the pin insertion hole.

Reference numeral 2 denotes a lower frame fixed to the vehicle body by a vehicle body mounting bracket 11, and a lever 6 is pivotally mounted on the inner surface of the frame by a shaft 6a.When one end 6b of the lever 6 protruding from the lower frame 2 is pushed, The other end 6c is the spring 1
6 (see FIG. 3), move the locking press plate 10 until it touches the auxiliary pin board 7'. Note that the upper container frame 1 is attached to the lower container frame 2 with screws 4.

FIG. 4 is an enlarged sectional view taken along line C-C' in FIG.
A moving shaft 18 is fixed to the lock plate 5, and when the lock plate 5 moves, the deciphering prevention plate 9 is pushed by the moving shaft 18 and moves to the right. Further, when the pressure 10 is increased, the decoding prevention plate 9 is pushed in the opposite direction via the cam 12 and moves.
The decoding prevention plate 9 is configured to be held in the moved position by a leaf spring 17.

FIG. 5 is an enlarged sectional view taken along the line D-D' in FIG.
The anti-deciphering plate 9 is provided with push button passage holes 9a at the same positions as the unlocking push buttons _P1 to _P10 , and is slidably attached to the upper container frame 1.

The usage method is as follows.

First, to explain how to set the key number, remove the screws 4 and remove the upper case frame 1 from the lower case frame 2. Since the screw 4 is covered by the screw cover portion 3a of the lock rod 3 when the lock is locked, it can be removed only when the lock is unlocked.

FIG. 9 is an enlarged plan view of the back side of the upper container frame 1 when the upper container frame 1 is removed, and the pins 8 are inserted into the respective pin insertion holes 7'a. Then, select which number from 1 to 0 will be the key number, insert pin 8 in the direction of the key into the pin insertion hole of the number to be the key, and insert the pin of the number not to be the key. Setting of the key number is completed by inserting the pin 8 into the insertion hole with the pin 8 facing in a direction other than the key. If the pin 8 is inserted with the narrow diameter portion 8a (recessed portion) first, the pin 8 becomes a keyed pin, and if inserted in the opposite direction, the pin 8 becomes a non-keyed pin.

That is, in FIG. 2, the pin 8 corresponding to the push button P ₆ is inserted in the direction of the key, and the push buttons P ₇ ,
The pins 8 corresponding to P ₈ , P ₉ , and P ₁₀ are inserted in a non-keyed direction.

After inserting the key and setting the key number, and attaching the upper case frame 1 to the lower case frame 2, press the push button P set to the key number, and the narrow diameter parts 8a (recesses) of all the pins will be removed. Since the lock plate 5 is located at the position of the pin insertion hole 5a of the lock plate 5, the lock plate 5 becomes movable in the direction of the arrow X in FIG.

The narrow diameter portions 8a (concave portions) of all the pins in FIG. 6 are in a state opposite to the small hole portions 5b of the pin insertion holes 5a of the lock plate 5, so that they protrude from the upper case frame 1 of the lock plate 5. When the protrusion 5d is pulled against the spring 14, the protrusion 5c of the lock plate 5 is disengaged from the recess 3c of the lock rod 3, and the lock rod 3 is moved to the left by the spring 13 to unlock.

However, when the pushbutton P, which is not used as a key, is pressed, the lock plate 5 cannot be moved in the X direction because the small hole 5b of the lock plate 5 is obstructed by the large diameter part of the pin, so the lock rod 3 is moved to the lock plate. 5, it remains locked and cannot be unlocked.

When the lock plate 5 moves during the above-mentioned unlocking, the decoding prevention plate 9 moves by the moving shaft 18, and the push button passage hole 9a of the decoding prevention plate 9 is inserted into the push button.
Push button P ₁ because it is removed from the position of P ₁ to P ₁₀
~P ₁₀ can no longer be pressed. Therefore, it is not possible to search which push button corresponds to the key number when unlocking.

For locking, press the screw cover part 3a of the lock lever 3 with the spring 13.
push against. Then, the protrusion 5c of the lock plate 5 engages with the recess 3c of the lock lever 3 by the spring 14, and the lock lever 3
Lock it in the locked state.

When the externally protruding end 6b of the lever 6 is pushed against the spring 16, the pin 8 protruding from the auxiliary pin board 7' is moved upward via the pressing plate 10, thereby holding the lock plate 5 in the locked state. do. At the same time, the cam 12 of the decoding prevention plate 9 is operated by the pressing plate 10 to move the decoding prevention plate 9 to the position shown in FIG.
Match positions P ₁ to P ₁₀ .

That is, the unlocking pushbuttons P ₁ to P ₁₀ can be pressed only in the locked state.

Therefore, there is no search for key buttons when the door is unlocked.

In this manner, to unlock, press each key button and pull the lock plate 5, and to lock, press the lock rod 3 and push the lever 6 to lock. To change the key, simply change the direction of the pin 8 and insert it into the pin insertion hole.

The total number of key number combinations in this example is:
2 ¹⁰ -1 (1023), but of course the total number of combinations can be increased by increasing the number of push buttons.

Although only the surface of the pin 8 used in the above embodiment is made of plastic as described above, the entire pin may be made of plastic.

The pin may also be plate-shaped as shown in FIGS. 10 and 11. That is, a cushion rubber 21 is bonded between a plate-shaped pin 20 and an auxiliary pin 21', and the cushion rubber 21 holds the pin 20 in a pressed position within the pin insertion hole. Further, a cutout portion 20a is provided on one side of the pin 20 at a position offset to one end.

FIG. 12 is an enlarged sectional view of the lock plate portion when the pin 20 is used, and the lock plate 22 is provided with an L-shaped pin insertion hole 22a.

[Effect of idea]

As described in detail above, unlocking and locking operations are easy and key conversion is easy. Moreover, it is possible to manufacture a small size and the manufacturing cost is low.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of this invention, Fig. 2 is an enlarged sectional view taken along line A-A' in Fig. 1, and Fig. 3 is an enlarged sectional view taken along line BB' in Fig. 1. , FIG. 4 is an enlarged sectional view taken along line C-C' in FIG. 1, FIG. 5 is an enlarged sectional view taken along line D-D' in FIG. 2, and FIG.
Fig. 7 is an enlarged plan view of the pin used; Fig. 8 is an enlarged sectional view taken along line F-F' in Fig. 7; Fig. 9 is an enlarged sectional view of the upper vessel frame. 10 is an enlarged plan view of the pin, FIG. 11 is an enlarged sectional view taken along line G-G' in FIG. 10, and FIG. 12 is an enlarged plan view of the back side.
The figure is an enlarged sectional view of the lock plate portion. P ₁ to P ₁₀ are push buttons for unlocking, 1... upper container frame,
2...Lower device frame, 3...Lock rod, 3a...Mounting screw cover part, 3b...Spring stopper part, 3
c...Recess of lock lever, 4...Front frame mounting screw, 5...
...Lock plate, 5a...Pin insertion hole, 6...Lever, 6
a... Lever shaft, 7... Pin board, 7'...
Auxiliary pin board, 7a...Pin insertion hole, 7'a...
...Pin insertion hole, 8...Pin, 8a...Pin small diameter part, 8b...Outer circumference of pin large diameter part, 9...Decoding prevention plate, 9a...Push button passage hole, 10...
Pressing plate, 11... Vehicle body mounting bracket, 12... Cam of decoding prevention plate, 12a... Cam shaft of decoding prevention plate, 1
2b...cam bearing of decoding prevention plate, 13...return spring of lock lever, 14...return spring of lock plate, 15...return spring of push button, 16...return spring of press plate, 17...decoding Leaf spring of the prevention plate, 18... Movement axis of the decoding prevention plate, 19... Axis of the pressing plate, 20...
Pin, 20'... Auxiliary pin, 20a... Pin notch, 21... Cushion rubber, 22... Lock plate, 22a... Pin insertion hole.

Claims (1)

[Scope of utility model registration request] Sequentially from top to bottom: an appropriate number of automatic return type unlocking push buttons, a deciphering prevention plate with a passage hole that matches the push buttons when the lock is locked, and a pin with a pin insertion hole at a position corresponding to the push button. The board is provided with overlapping lock plates each having a pin insertion hole and a subsequent pin movement prevention hole at a position corresponding to the push button, and a press plate is arranged below the lock plate at a distance from the lock plate. Insert the pins, which have recesses offset toward the body, into the pin insertion holes of the pin board and lock plate so that they can move freely.Pins that will be used as key pins are inserted with the recesses at the top, and pins that will not be used as key pins are inserted with the recesses at the bottom. At the same time, the anti-deciphering plate and the lock plate are provided to be slidable, and the anti-deciphering plate is moved in conjunction with the lock plate so that the passage hole of the anti-deciphering plate does not coincide with the push button, and the anti-deciphering plate is inserted in a position where the passage hole of the anti-deciphering plate does not coincide with the push button. A push-button type key number combination lock for a bicycle, characterized in that the passage hole of the decoding prevention plate moves in conjunction with the push button to a position that coincides with the push button.