JP2001198322A - Locking device of front frame in pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device of a front frame to prevent unlocking a hook piece purposely without using a key of a cylinder lock by changing part of a locking device installed on a conventional pachinko machine. SOLUTION: When an elevating bar 16 of the locking device 10 is purposely moved upward without using the key of the cylinder lock 20, the movement of the elevating bar 16 is prevented by the upper edge 17b of an unlocking piece 17 provided on the elevating bar 16 contacting a stopper piece 26 of a can member 22, thus holding a locked state of the hook piece 14 onto an engaging piece 3.

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 locking device for a front frame in a pachinko machine.

[0002]

2. Description of the Related Art In a pachinko hall, a lock device is provided so that when a front frame of a pachinko machine is closed, the front frame is automatically locked so that a player other than an employee cannot open the front frame without permission. For example, the front frame locking device a shown in FIG. 5 of the present applicant has a vertically long mounting plate b fixed to the back of a front frame ii provided to be openable and closable on a main body frame i, and provided inside the main body frame. Hook pieces c for engaging with the attached hook pieces iii are supported at both ends of the rising pieces of the mounting plate b so as to be vertically swingable, and the free ends of the hook pieces c are locked by locks. A cam member i is attached to a rotating portion h of a cylinder lock g fixed to a mounting plate b, and a cam member i is connected to each other by an elevating rod d biased by a spring in a direction in which the cam member i is applied. The piece j is arranged so as to contact the lower end of the unlocking piece e provided on the lifting rod d. Then, the cam member i is rotated by the key inserted into the cylinder lock g to move the elevating rod d upward, thereby releasing the locked state of the hook piece c and the hook piece iii and opening the front frame ii. It is configured to be able to. In addition, a known metal frame x provided with a glass frame y on which glass (not shown) is mounted is freely openable and closable is attached to the front frame ii.

[0003]

In the above-mentioned pachinko machine equipped with the conventional front frame locking device a, a malicious player inserts a thin plate or the like into a slight gap between the front frame ii and the main frame i. The locked state of the hook piece c is released by inserting and moving the elevating rod d upward, and the front frame ii is opened to perform a wrongdoing. Of course, such illegal acts should not be tolerated, but on the pachinko hall side, measures to improve the front frame locking device a have been demanded in order to prevent such acts.

[0004] An object of the present invention is to prevent a locked state of a hook piece from being intentionally released without using a key of a cylinder lock by changing a part of a lock device installed in a conventional pachinko machine. A locking device for the front frame.

[0005]

According to the first aspect of the present invention, there is provided a vertically long mounting plate having an L-shaped cross section fixed to the back surface of a front frame provided on a main body frame so as to be openable and closable. And a hook piece for engaging with a hook piece attached to the inside of the main body frame is supported at both ends of the rising piece of the mounting plate so as to be vertically swingable, and each hook piece is free to swing. The ends are connected by a lifting rod urged by a spring in the direction in which the lock is applied, and a cam member is attached to a rotating portion of a cylinder lock fixed to a substantially central portion of the mounting plate, and the cam member is attached to the rotating member. The formed protrusion is disposed so as to contact the lower end of the unlocking piece provided on the lifting rod,
A lock of a front frame in a pachinko machine configured to release a locked state of the hook piece and the latch piece by rotating a cam member by a key inserted into the cylinder lock and moving a lifting rod upward. In the device,
A stopper piece is formed on the cam member and the stopper piece is provided so as to face the upper end of the unlocking piece, and when the elevating rod is intentionally moved upward without using the key of the cylinder lock, The lock state is not released by bringing the upper end of the lock release piece into contact with the stopper piece of the cam member.

[0006]

When the key is inserted into the cylinder lock and rotated clockwise as viewed from the front side of the front frame, the cam member rotates in the same direction to move the elevating rod upward, and the hook piece moves downward. To release from the latching piece, and the locked state is released.

However, in the case where the lifting rod is intentionally moved upward without using the key of the cylinder lock,
Since the upper end of the unlocking piece provided on the lifting rod comes into contact with the stopper piece of the cam member to prevent the movement of the lifting rod, the locked state of the hook piece on the hooking piece is maintained as it is.

[0008] According to the front frame locking device of this pachinko machine, a malicious player can deliberately release the locked state of the hook pieces and open the front frame without using the key of the cylinder lock. It is possible to prevent this from happening. In addition, by replacing only the cam member provided on the cylinder lock of the existing lock device,
There is a great advantage that the conventional locking device can be used as it is.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 is an explanatory view showing a state in which a locking device for a front frame is attached to a pachinko machine, FIG. 2 is a side view of the locking device, FIG. 3 is a rear view of a part of the locking device, and FIG. 4 is a perspective view of a cam member. is there.

In FIG. 1, a front frame 2 is pivotally supported at one side (not shown) at the front of a main body frame 1 of the pachinko machine and can be opened and closed. A front frame lock device 10 is provided with a hook piece 14 that engages from below with a latch piece 3 attached to the inside of the frame 1.

The vertically long mounting plate 11 of the front frame locking device 10 is formed by bending a fixed piece 12 and a rising piece 13 fixed to the other side back surface 2a of the front frame 2 into an L-shape. It is formed in a cross section. At both ends of the rising piece 13,
Upward hooks 14, 14 are pivotally supported by pins 15 so as to be swingable in the vertical direction, and free ends of each hook 14 are locked by a downwardly extending spring 18 which is urged downward by a spring 18. 1
6 respectively. Reference numeral 20 denotes a cylinder lock fixed to a substantially central portion of the fixing piece 12 of the mounting plate 11,
A key insertion hole (not shown) of the cylinder lock 20 is provided so as to be exposed on the front surface of the front frame 2. Reference numeral 22 denotes a cam member in which a square hole 24 is fitted to a rotating part 21 located at the center of the cylinder lock 20 and attached by a screw 27.

As shown in FIG. 4, the cam member 22 is
A protruding piece 25 and a stopper piece 26 are integrally formed on the periphery of a plate piece 23 having a rectangular hole 24 formed at the center. As shown in FIG. 3, the protruding piece 25 is disposed so as to contact the lower end portion 17a of an unlocking piece 17 integrally provided on the side of the elevating rod 16, while the stopper piece 26 releases the lock. It is provided so as to face the upper end 17 b of the piece 17. Reference numeral 28 denotes a glass frame elevating piece which is interposed between the rising piece 13 and the elevating rod 16 and urged upward by a spring 29.

The front frame lock device 10 rotates the cam member 22 clockwise as viewed from the front side of the front frame by the key inserted into the cylinder lock 20 to raise and lower the lifting rod 1.
By moving the hook 6 upward, the hook piece 14 is separated from the hook piece 3 to release the locked state, and the front frame 2 can be opened.

A known metal frame 35 having a glass frame 36 on which glass (not shown) is mounted is provided on the front frame 2 so as to be freely opened and closed.
Is attached. On the inner surface of the metal frame 35 on the side of the lock device 10, a lock piece 4 having an engagement groove 41 for engaging a piece 37 protruding from the back surface of the glass frame 36 is formed.
The second lock device 39 provided with 0 is provided. The second
The lock device 39 is provided so that the lock piece 40 is always urged upward by a spring (not shown) to maintain the locked state between the piece 37 and the engagement groove 41.
By pressing down an opening piece 42 projecting rearward from the rear, the locked state is released and the glass frame 36 can be opened. The upper end of the opening piece 42 is arranged on the lower surface of the glass frame elevating piece 28.

As described above, in the front frame locking device 10 having such a configuration, the player inserts a thin plate or the like into a small gap between the front frame 2 and the main body frame 1 and intentionally moves the lifting rod 16 upward. The upper end portion 17b of the unlocking piece 17 provided on the lifting rod 16 contacts the stopper piece 26 of the cam member 22 to prevent the lifting rod 16 from moving. The locked state of 14 is maintained to prevent unauthorized opening of the front frame 2.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state in which a lock device is attached to a pachinko machine.

FIG. 2 is a side view of the locking device.

FIG. 3 is a rear view of a part of the locking device.

FIG. 4 is a perspective view of a cam member.

FIG. 5 is an explanatory view showing a state in which a conventional front frame lock device is attached to a pachinko machine.

FIG. 6 is a rear view of a part of a conventional front frame locking device.

[Explanation of symbols]

1 → Main body frame 2 → Front frame 3 → Hanging piece 10 → Front frame locking device 11 → Mounting plate 13 → Rising piece 14 → Hook piece 16 → Elevating rod 17 → Lock release piece 17a → Lower end
17b → upper end 20 → cylinder lock 21 → rotating part 22 → cam member 25 → protruding piece 26 → stopper piece

Claims (1)

[Claims] 1. A vertically long mounting plate having an L-shaped cross-section fixed to the back surface of a front frame openably and closably provided on a main body frame,
Hook pieces for engaging with the hook pieces attached to the inside of the main body frame are supported at both ends of the rising piece of the mounting plate so as to be swingable in the vertical direction, and the free ends of the hook pieces are connected to each other. A cam member is attached to a rotating portion of a cylinder lock fixed to a substantially central portion of the mounting plate, and a cam member is formed on the cam member by being connected by an elevating rod urged by a spring in a direction in which the lock is applied. The projecting piece is arranged so as to contact the lower end of the unlocking piece provided on the elevating rod, and the cam member is rotated by a key inserted into the cylinder lock to move the elevating rod upward so that the hook is moved. In a locking device for a front frame in a pachinko machine configured to release a locked state between a piece and a latching piece, a stopper piece is formed on the cam member and the stopper piece is placed on the unlocking piece. The upper end of the unlocking piece is brought into contact with a stopper piece of a cam member when the lifting rod is intentionally moved upward without using the key of the cylinder lock. A locking device for a front frame in a pachinko machine, wherein the locking state is not released.