JP2001032583A - Variable lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To promote simplification and compaction of a construction in a variable lock capable of changing a key code and, at the same time, to accomplish smoothness of key code changing work. SOLUTION: A cylinder constitution has a double cylinder structure consisting of a circumferential cylinder 20 and an interior circumferential cylinder 30, the interior circumferential cylinder 30 and an output shaft 40 are capable of making joint lock or lock release through a reset mechanism, the interior circumferential cylinder 30 and output shaft 40 is monolithically pivoted to make locking and unlocking when they are connected to each other, at the same time, the interior circumferential cylinder 30 and output shaft 40 are separated from each other by the reset mechanism when key code change is required, and after the height of a pin of a driver pin 231 spreading over the interior circumferential cylinder 30 and circumferential cylinder 20 is adjusted, a reset state is released to connect the interior circumferential cylinder 30 and output shaft 40, and the key code is changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a variable lock used for a pachinko machine or the like, and more particularly, to a variable lock whose structure is simplified and compact.

[0002]

2. Description of the Related Art Normally, locks attached to the front frame of a pachinko machine installed in an amusement park are used in a unified manner for each manufacturer, and the key shape corresponding to the lock is easily known to an outsider. There is a danger, and the clerk must have the key corresponding to the lock for each manufacturer, the number of keys increases,
The problem that management is troublesome is pointed out.

In order to solve this problem, a variable lock that can handle a plurality of keys has been proposed and implemented. The configuration of a conventional variable lock will be briefly described with reference to Japanese Patent Application Laid-Open No. 3-234275. As shown in FIG. 10, a variable lock 1 includes an outer cylinder 2 fixed in a fixed state and an outer cylinder 2. And an inner cylinder 4 which is slidably mounted on the inner peripheral surface of the intermediate cylinder 3 and which is slidably mounted on the inner peripheral surface of the intermediate cylinder 3.

When a key (not shown) having a predetermined key groove pattern is inserted into the key hole 4a of the inner peripheral cylinder 4, the driver pin 5 housed in the through hole 4b of the inner peripheral cylinder 4 is inserted into the key groove pattern. , The driver pins 5 and the springs 5a are formed in the pockets 2a, 3a provided in the outer peripheral cylinder 2 and the intermediate cylinder 3.
Is located on the sliding surface X between the outer cylinder 2 and the intermediate cylinder 3, and the intermediate cylinder 3 is driven to rotate with respect to the outer cylinder 2, Locking and unlocking becomes possible.

The reset mechanism 6 of the variable lock 1 shown in FIG. 10 includes a reset pin 6b and a first auxiliary block in a pocket 6a formed through the outer cylinder 2, the intermediate cylinder 3, and the inner cylinder 4. 6c,
The second auxiliary block 6d and the coil spring 6e are housed therein, and an operation section 6f is provided at the tip of the reset pin 6b.

The boundary surface between the reset pin 6b and the first auxiliary block 6c is formed between the outer cylinder 2 and the intermediate cylinder 3.
And the joint between the first auxiliary block 6c and the second auxiliary block 6d is displaced from the sliding surface Y between the intermediate cylinder 3 and the inner peripheral cylinder 4. In normal key operation, the intermediate cylinder 3 and the inner peripheral cylinder 4 rotate integrally to perform locking and unlocking.

In order to change the key code of the variable lock 1, the operating portion 6f of the reset mechanism 6 is depressed, and the joint between the first auxiliary block 6 and the second auxiliary block 6d, the intermediate cylinder 3 and By aligning the sliding surface Y with the inner peripheral cylinder 4, the inner peripheral cylinder 4 becomes rotatable in the intermediate cylinder 3, and the key is inserted into the keyhole 4a, and
After rotating the key by 0 ° and pulling out the key, a new key to be changed is inserted into the keyhole 4a and rotated by 180 ° in the opposite direction, so that the driver pin 5 and the base body 5b are The setting spacer 7 can be increased or decreased according to the shape of the new key groove pattern, and the code is changed according to the key groove pattern of the new key by changing the pin height.

[0008]

However, since the conventional variable lock 1 has a three-cylinder structure of the outer cylinder 2, the intermediate cylinder 3, and the inner cylinder 4, the cylinder diameter is increased and the outer cylinder is increased. Since it has a first divided surface that matches the contact surface between the intermediate cylinder 3 and the intermediate cylinder 3 and a second divided surface that matches the contact surface between the intermediate cylinder 3 and the inner peripheral cylinder 4, the through hole 4b and the pocket portions 2a, 3a are provided. It has been pointed out that the setting spacer 7 is not smoothly moved within the inside, and the code setting operation is likely to be hindered.

Further, since the driver pin 5 moves in the through hole 4b of the inner peripheral cylinder 4, a load is easily applied when a key is inserted, the driver pin 5 is easily caught in the through hole 4b of the inner peripheral cylinder 4, and the key cannot be inserted. Things are possible. Further, since the rotary operation is performed on the two divided surfaces, the number of the setting spacers 7 is required to be equal to or larger than the set number, and the number of parts is increased. There is a problem that the structure is complicated because it is used as a moving pocket.

As described above, since the conventional variable lock 1 employs the three-cylinder structure, the diameter of the cylinder is increased, and since it has two divided surfaces, the setting spacer 7 and the like are easily caught. In addition to the drawback that the code setting operation cannot be performed smoothly, the reset pin 6b and the like constituting the reset mechanism 6 are provided along the radial direction of the variable lock 1 between the outer cylinder 2, the intermediate cylinder 3, and the inner cylinder 4. In addition, the cylinder length becomes longer, which is a factor that hinders downsizing.

The present invention has been made in view of such a conventional problem, and by using a two-cylinder structure for the cylinder structure, the structure can be simplified and compact, and the code at the time of reset operation can be improved. An object of the present invention is to provide a variable lock in which setting work can be performed smoothly.

[0012]

In order to achieve the above object, an invention according to claim 1 of the present application comprises an outer peripheral cylinder mounted in a fixed state and an inner peripheral surface of the outer cylinder slidably and rotatably housed. An inner cylinder having a keyhole, an output shaft in contact with the rear end surface of the inner cylinder and slidably and rotatably accommodated in the inner peripheral surface of the outer cylinder, for performing locking and unlocking operations, and an inner cylinder. And a reset mechanism disposed between the output shaft and the output shaft. The reset mechanism locks the inner peripheral cylinder and the output shaft to perform locking and unlocking operations by a predetermined key operation. To release the connection between the inner cylinder and the output shaft,
A new key code can be set by making the pin height of a driver pin provided between the outer cylinder and the inner cylinder different.

Therefore, according to the first aspect of the present invention,
It has a two-cylinder structure with an outer cylinder and an inner cylinder. During locking and unlocking operations, the output shaft on the output side is connected to the inner cylinder, and during a reset operation, the connection between the inner cylinder and the output shaft is released. With this configuration, the cylinder diameter can be reduced as compared with the conventional three-cylinder structure, and the dividing surface is one of the sliding surfaces of the outer cylinder and the inner cylinder. The spacer can be moved smoothly.

According to a second aspect of the present invention, there is provided a reset mechanism, comprising: a reset pin which is housed along the axial direction on the inner cylinder side and the output shaft side across the joint surface between the inner cylinder and the output shaft; The reset pin includes a pressing spring that urges the reset pin in the locking direction. Normally, the reset pin straddles between the inner cylinder and the output shaft, and locks the inner cylinder and the output shaft. The reset pin is pushed into the inner cylinder side by a driver's operation through the operation hole of the output shaft to release the connection between the inner cylinder and the output shaft, thereby bringing the reset state.

Therefore, according to the second aspect of the present invention,
The connection between the inner cylinder and the output shaft, and the release of the connection,
By operating the reset pin accommodated along the axial direction between the inner cylinder and the output shaft, it is possible to switch between the normal locking and unlocking state and the reset state accompanying the new code setting, Unlike the conventional case, there is no need to provide pockets such as through holes and recesses in the outer cylinder, the intermediate cylinder, and the inner cylinder, and the cylinder length can be reduced.

According to a third aspect of the present invention, a cover for covering the outer surface of the output shaft and a locking arm attached to the output shaft have a reset operation opening for externally resetting a reset pin. It is provided on the extension of the operation hole of the output shaft.

Therefore, according to the third aspect of the present invention,
With the adjustable lock attached, the reset pin can be easily reset by pushing the reset pin with a screwdriver or the like through the reset operation opening provided in the locking arm and cover body, and the key code setting work can be quickly performed. I can do it.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a variable lock according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing the structure of an embodiment of the variable lock according to the present invention, FIG. 2 is a sectional view showing the structure of an embodiment of the variable lock, and FIG. 3 is shown in FIG. 4 to 8 are sectional views showing a code setting operation, and FIG. 9 is a sectional view showing a configuration of the variable lock changed to a new code.

1 and 2, a variable lock 10 according to the present invention comprises an outer cylinder 20 and an inner cylinder 30 slidably mounted on the inner surface of the outer cylinder 20.
And an output shaft 40 that comes into contact with the rear end face of the inner peripheral cylinder 30 to be locked (connected) or disconnected, and a reset mechanism 50 that connects and disconnects both.

More specifically, the outer peripheral cylinder 20 is provided with a flange 21 extending up and down on the mounting side.
A cylinder chamber 22 is formed at the center of the outer cylinder 20 so that the inner cylinder 30 can be slidably and rotatably accommodated in the center of the outer cylinder 20. And, the cylinder chamber 22
Through holes 23 are formed at predetermined pitch intervals along the axial direction from the inner peripheral surface to the upper end surface of the outer peripheral cylinder 20. Similarly, a through-hole 24 is formed on the extension of the through-hole 23 from the inner peripheral surface to the lower end surface of the cylinder chamber 22, and a lock mechanism component is accommodated in the through-holes 23, 24.

The lock mechanism components housed in the through hole 23 on one side include a driver pin 231, a spacer 232, a driver base 233, and a pressing coil spring 234 housed in each through hole 23, and a cover plate 235 is attached thereto. Fixed.

On the other hand, a spacer 241, a driver base 242, a pressing coil spring 24
3 are inserted in this order, and the cover plate 244 is attached and fixed.

Next, the cylinder chamber 2 of the outer peripheral cylinder 20
The inner peripheral cylinder 30 housed in the inner cylinder 2 has a keyhole 31 for inserting a key formed in the center, and the inner peripheral cylinder 30 is housed in a regular position in the cylinder chamber 22 of the outer cylinder 20. The through-hole 23 of the outer cylinder 20
A through hole 32 penetrating between the keyhole 31 and the outer peripheral surface is provided at a position corresponding to 24. Therefore, the through-hole 32 of the inner cylinder is in the normal rotation position.
Communicates with the through hole 23 on one side of the
In a state where the rotation operation is performed at an angle of 80 °, it communicates with the through hole 24 on the other side of the outer peripheral cylinder 20.

Therefore, the cylinder chamber 2 of the outer peripheral cylinder 20
2, the through-hole 23 of the outer cylinder 20 and the through-hole 32 of the inner cylinder 30 communicate with each other, and as shown in FIG. Penetrates into the through hole 32 of the inner peripheral cylinder 30 and is urged by the pressing coil spring 234 so that the tip of the driver pin 231 faces the inside of the key hole 31.

Next, the output shaft 40 attached to the rear end of the inner peripheral cylinder 30 comprises a disk-shaped flange portion 41 and a shaft portion 42 having substantially the same diameter as the inner peripheral cylinder 30. After the inner cylinder 30 is accommodated in the cylinder chamber 22, the flange portion 41 of the output shaft 40 is
0 is accommodated in the cylinder chamber 22 of the outer peripheral cylinder 20 so as to slide with the rear end face 33, and is supported by the cover body 60.
The cover body 60 is provided with the flange 21 of the outer peripheral cylinder 20.
After being fitted in the cover body accommodating concave portion 212 formed in the above, it is fixed with screws.

Further, the shaft portion 42 of the output shaft 40 projects outside from the insertion hole 61 of the cover body 60,
2 is attached to the mounting hole 71 of the locking arm 70.

The variable lock 10 according to the present invention comprises:
The connection and disconnection between the inner cylinder 30 and the output shaft 40 are easily performed, so that switching between the locked state, the unlocked state, and the reset state can be performed with a simple and compact configuration. is there.

That is, the inner peripheral cylinder 30 and the output shaft 40
The relationship between the inner peripheral cylinder 30 and the rear end surface 33
Are formed in the axial direction, and a pressing spring 51 and a reset pin 52 are inserted in the concave portion 34.
4, a stepped hole 43 is formed in the surface of the flange portion 41 of the output shaft 40 facing the inner peripheral cylinder 30. As shown in FIG. When the reset pin 52 straddles the sliding surface between the inner peripheral cylinder 30 and the output shaft 40, the inner peripheral cylinder 30 and the output shaft 40 are connected. I have.

To release the connection between the inner peripheral cylinder 30 and the output shaft 40, a driver is inserted through the small diameter portion 43b of the stepped hole 43 of the output shaft 40, and the reset pin 52
Is retracted into the inner peripheral cylinder 30 so that the connection between the inner peripheral cylinder 30 and the output shaft 40 can be released.

The cover body 60 and the locking arm 70 are provided with reset operation openings 62 and 72 on the extension of the stepped hole 43 of the output shaft 40.

Next, based on FIG.
When the current key 80 is inserted into the key hole 31 of the variable lock 10, the through-hole 3 of the inner cylinder 30 is formed along the key groove pattern 81 of the key 80.
2. A driver pin 2 is inserted in the through hole 23 of the outer peripheral cylinder 20.
31 moves, and in the key groove 81 pattern of the key 80, for the four driver pins 231 from the left side in FIG. 3, the boundary surface between the driver pin 231 and the driver base 233 is And the remaining four driver pins 23 located on the sliding surface between the
For No. 1, the driver base 233 and the spacer 232
Is located on the sliding surface between the outer cylinder 20 and the inner cylinder 30. If the key 80 is rotated while inserted into the keyhole 31, the inner cylinder is integrated with the key 80. 30 can be rotated together.

Further, since the reset pin 52 straddles both joint surfaces of the inner cylinder 30 and the output shaft 40, and the inner cylinder 30 and the output shaft 40 are connected, the key 8
By the rotation operation of 0, the output shaft 40 also rotates in the same direction,
Locking or unlocking operation by the locking arm 70 can be performed.

Next, an operation of newly changing the key code of the variable lock 10 according to the present invention will be described with reference to FIGS. Note that the key code of the current key 80 determines the pin height of the driver pin 231 by the presence or absence of the spacer 232.
Defined as a key code (00002222). First, as shown in FIG. 4, with the current key 80 inserted, the driver 53 is externally inserted into the locking arm 70 and the reset operation openings 72 and 62 of the cover body 60 into the stepped hole 43 of the output shaft 40. And the reset pin 52 housed therein is pushed into the concave portion 34 of the inner peripheral cylinder 30.

Thus, the inner cylinder 30 and the output shaft 4
Even if the connection with the key 0 is released and the turning operation is performed with the key 80 inserted, the inner peripheral cylinder 30 turns, but the output shaft 40 is not output.

Then, as shown in FIG. 5, while the reset pin 52 is pressed by the driver 53 from the outside, the rotary operation is performed by 180 ° with the current key 80 inserted. At this time, the spacer 232 whose height has been set by the key groove pattern 81 of the current key 80 moves to the through hole 24 on the lower side. Thereafter, when the current key 80 is pulled out, the through hole 32 of the inner cylinder 30 and the lower through hole 24 of the outer cylinder 20 communicate with each other as shown in FIG. The driver pin 231 is housed.

Next, as shown in FIG. 7, when a key 90 of another code to be newly set is inserted into the key hole 31, the key groove pattern 91 of the new key 90 causes the through hole 32 of the inner peripheral cylinder 30 to be set. And the driver pin 231 and the spacer 23 along the inside of the through hole 24 below the outer peripheral cylinder 20.
2, 241 and the like move up and down, and according to the key groove pattern 91 of the new key 90, the pin height of the driver pin 231 from the left becomes the key code (10100212).
In this state, the driver 53 still resets the reset pin 52
Is pressed, the connection between the inner peripheral cylinder 30 and the output shaft 40 is released.

Thereafter, as shown in FIG.
After performing a 180 ° rotation operation with the
3 is removed, the reset pin 52 is
Is pushed outward, the reset pin 52 straddles the joint surface between the inner peripheral cylinder 30 and the output shaft 40, and the inner peripheral cylinder 30
And the output shaft 40 are connected.

Then, when the new key 90 is pulled out, FIG.
As shown in the figure, the variable lock 10 is changed to a new key code (10
100212).

[0040]

As described above, the variable lock according to the present invention has a two-cylinder structure of an outer cylinder and an inner cylinder, and the inner cylinder and the output shaft can be connected and disconnected so that the lock can be locked. Can be switched between the unlocked state and the reset state, so that the structure can be simplified and downsized, and the spacers and the like can be smoothly moved at the time of new code setting work, thereby facilitating the new code setting work. It has the effect of being able to.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a configuration of an embodiment of a variable lock according to the present invention.

FIG. 2 is a cross-sectional view showing a configuration of the variable lock shown in FIG.

FIG. 3 is a sectional view showing a locked and unlocked state of the variable lock shown in FIG. 2;

FIG. 4 is an explanatory diagram showing an operation state of a reset mechanism in a code setting operation of the variable lock according to the present invention.

FIG. 5 is an explanatory diagram showing a rotation operation using a current key in a code setting operation of the variable lock according to the present invention.

FIG. 6 is an explanatory diagram showing a reset state in the code setting operation of the variable lock according to the present invention.

FIG. 7 is an explanatory diagram showing a state in which another key is inserted in the variable lock according to the present invention.

FIG. 8 is an explanatory diagram showing a state in which code setting in the code setting operation of the variable lock according to the present invention is completed.

FIG. 9 is a cross-sectional view showing an initial state in which a key code is changed in the variable lock according to the present invention.

FIG. 10 is a sectional view showing a configuration of a conventional variable lock.

[Explanation of symbols]

 Reference Signs List 10 Variable lock 20 Outer cylinder 23, 24 Through hole 231 Driver pin 232, 241 Spacer 233, 242 Driver base 234, 243 Press spring 235, 244 Cover plate 30 Inner cylinder 31 Key hole 32 Through hole 33 Rear end face 34 Depression 40 Output Shaft 41 Flange part 42 Shaft part 43 Stepped hole 50 Reset mechanism 51 Press spring 52 Reset pin 60 Cover body 61 Insertion hole 62 Reset operation opening 70 Locking arm 71 Mounting hole 72 Reset operation opening 80 Current key 90 New key

Claims (3)

[Claims] An outer peripheral cylinder fixedly mounted, and slidably housed in an inner peripheral surface of the outer cylinder;
An inner cylinder having a keyhole, an output shaft that contacts the rear end surface of the inner cylinder and is slidably and rotatably accommodated on the inner peripheral surface of the outer cylinder, and performs locking and unlocking operations; And a reset mechanism disposed between the shaft and
The inner cylinder and the output shaft are locked by the reset mechanism, locking and unlocking operations are performed by a predetermined key operation, and the reset mechanism is unlocked to release the connection between the inner cylinder and the output shaft. A variable lock characterized in that a new key code can be set by making the pin height of a driver pin provided between an outer cylinder and an inner cylinder different. 2. A reset mechanism, comprising: a reset pin that is housed along the axial direction on an inner cylinder side and an output shaft side across a joint surface between an inner cylinder and an output shaft; Normally, the reset pin straddles between the inner cylinder and the output shaft to lock the inner cylinder and the output shaft, while operating the driver through the operation hole of the output shaft from outside. 2. The variable lock according to claim 1, wherein the reset pin is pushed into the inner peripheral cylinder side to release the connection between the inner peripheral cylinder and the output shaft, thereby setting a reset state. 3. A resetting opening for resetting a reset pin from outside is provided on a cover body covering an outer surface of the output shaft and a locking arm attached to the output shaft, on an extension of an operation hole of the output shaft. The variable lock according to claim 2, wherein the lock is set.