JP2003334370A - Illegal opening preventing apparatus for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent such an illegal behavior as releasing a locked state by forcedly moving a locking member with such an illegal means as putting a wire into the game machine in an illegal opening prevention apparatus for preventing the game machine such as a pachinko game machine, a slot machine installed in a game hall from being opened illegally by using a duplicate key, etc. <P>SOLUTION: The game machine is provided with an opening and closing door 2 which can be opened with a prescribed key 13, and the locking member 23 which keeps the opening and closing door in a close state on the rear side of the opening and closing door. The locking member is made movable via transmission mechanisms 25 and 26 by energizing an electrical drive source 24 provided on the rear side of the opening and closing door so as to release the locked state of the opening and closing door. A slight play, which prevents the movement of the driven side 26 of the transmission mechanisms from being transmitted to a driving side even though the driven side 26 is moved, is formed in the transmission mechanisms. Thus, when the driving side 25 is not moved due to the play but only the following side is moved in a lock releasing direction, the driven side abuts on a stopper part 35 formed in the transmission mechanisms to block a transmission in an inverse direction. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unauthorized opening preventing device for preventing a gaming machine such as a pachinko gaming machine or a slot machine installed in a gaming hall from being illegally opened by using a duplicate key or the like. is there.

[0002]

2. Description of the Related Art For example, in a pachinko game machine installed in a pachinko game arcade, an opening / closing door may be opened for an unauthorized purpose by using a matching key. To prevent this, conventionally, a lock member operated by an electric drive source such as a solenoid is provided on the back side of the opening / closing door, and the lock state is released by operating the electric drive source by remote control from a central control room. By making it possible to open it for the first time, it is possible to prevent fraudulent activity using a key.

[0003]

However, in the above-mentioned unauthorized access prevention device, even if the lock device is in the locked state, a wire or the like is inserted into the gaming machine to move the lock member to release the locked state, and the lock key is locked. There was a problem that we could not deal with the work of using and opening it. Therefore, the present invention intends to provide a device capable of surely preventing such a tricky act.

[0004]

To this end, an unauthorized opening prevention device for a gaming machine according to the present invention is provided with an opening / closing door that can be opened by a predetermined key, and the opening / closing door is closed on the back side of the opening / closing door. And a lock member for keeping the open / close door locked by energizing an electric drive source provided on the back side of the open / close door so that the lock member is unlocked. In the gaming machine described above, the transmission mechanism is provided with a slight play in which the motion is not transmitted to the driving side even when the driven side moves, and when the driven side moves in the unlocking direction without the driving side moving due to the play. The driven side comes into contact with a stop formed on the transmission mechanism to prevent transmission in the opposite direction, so that the locked state is not released without energizing the electric drive source. To do. Further, the present invention is characterized in that, in the unauthorized opening prevention device, the electric drive source is a solenoid and the transmission mechanism is a link mechanism. Further, the present invention is characterized in that, in the unauthorized opening prevention device, means for detecting the state of the lock member by an electric signal is provided.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings for a pachinko gaming machine. In the figure, 1
Is an underframe, 2 is a bearing fitting 3 on the upper and lower portions of one side edge of the underframe 1,
3 is an opening / closing door (front frame) pivotally attached to the front so as to be opened and closed. Reference numeral 4 denotes a locking mechanism provided on the back side of the opening / closing door 2. The locking mechanism 4 is a plate-like movable hook-shaped piece on the upper and lower portions of a mounting board 5 having a longitudinal cross-section with an L-shaped cross section by supporting shafts 6 and 6, respectively. 7 and 7 are rotatably supported in a vertical plane, the upper and lower portions of the connecting rod 8 are connected to the rear ends of the movable hook-shaped pieces 7 and 7 by supporting shafts 9 and 9, and an opening / closing door is also provided. An action piece 11 of a cylinder lock 10 provided in a penetrating manner in 2 is engaged with the connecting rod 8. Reference numeral 12 is a coil spring that urges the connecting rod 8 downward. For this reason, by inserting the key 13 into the cylinder lock 10 from the front surface of the opening / closing door 2 and rotating the cylinder lock 10 in a predetermined direction, the action piece 11 moves the connecting rod 8 upward against the elasticity of the coil spring 12 and the movable hook-shaped pieces 7, 7 are formed. Rotate upward. The movable hook-shaped pieces 7, 7 have a shape in which a tip portion 7a has a gooseneck shape, and an engagement groove 7b is formed after the enlarged top portion thereof.

Reference numerals 14 and 14 denote projecting pieces fixed to the inside of the underframe 1 by screws 18, and when the opening / closing door 2 is closed, the movable hook-like pieces 7,
The tip portion 7a of 7 abuts on the upper edge of the projecting piece 14, and the movable hook-shaped pieces 7 and 7 once rotate upward against the elasticity of the coil spring 12 to engage the engaging groove 7b with the projecting piece 14b. , 14 hold the open / close door 2 in the closed state. Then, the key 13 is rotated to move the connecting rod 8 upward so as to rotate the movable hook-shaped pieces 7 and 7 upward, so that the engagement is released and the opening / closing door 2 can be opened. Reference numeral 15 is a mechanism plate provided on the back side of the opening / closing door 2, 16 is a hitting ball launching motor, and 17 is a plastic case accommodating a game control board having a ROM and the like mounted therein.

Therefore, the case 2 in which the lock mechanism according to the present invention is incorporated on the back side of the underframe 1 so as to correspond to the projecting piece 14.
0 is fixed by screws 19. In this lock mechanism, a plate-shaped lock member 23 is slidably provided on the bottom plate of the case 20, and the tip of the lock member is moved from the through hole 22 formed in the side wall of the case 20 to the movable hook-shaped piece. I can appear in the upper part of 7. Further, a solenoid 24 as an electric drive source is provided in the case 20, and the solenoid 24 and the lock member 23 are provided via a transmission mechanism (link mechanism) including a rotary link 25 and a rotary link 26.
And are connected. In the solenoid 24, the operation piece 30 is fixed to the tip of the plunger, and the coil spring 21 is demagnetized.
The elasticity causes the plunger to project and the operating piece 30 to move downward. Further, the rotary link 25 and the rotary link 26 are rotatably supported by shafts 27 and 28 which are horizontally installed in the case 20, respectively, and the rotary link 25 has a U-shaped portion 29 formed at one end thereof. The tip portion is loosely fitted, and the other end of the rotary link 25 forms a forked portion 31,
A pin 32 integrally formed at one end of the rotary link 26 is loosely fitted in the bifurcated portion, and a bifurcated portion 33 is formed at the other end of the rotary link 26, and the lock member 23 is formed in the bifurcated portion. A pin 34 protruding from the upper surface of the pin is loosely fitted. Reference numeral 35 denotes a stop portion integrally formed with the rotary link 26 so as to be adjacent to one side of the pin 32 at one end of the rotary link 26.

Further, a sub case 36 is provided on the back surface of the case 20.
Is detachably attached, and an interlocking piece 37 facing the rear end of the lock member 23 is slidably provided in the sub case, and the interlocking piece is biased forward by a coil spring 38, A mechanical switch 41 is provided so that the tentacle 40 abuts on the protrusion 39 provided on the upper surface, and when the lock member 23 moves backward, the interlocking piece is pressed and moves backward against the elasticity of the coil spring 38. Since the mechanical switch 41 is operated, the state of the lock member 23 can be detected by an electric signal by the mechanical switch.

In the unauthorized opening prevention device thus constructed, when the solenoid 24 is demagnetized, the device shown in FIGS.
As shown in FIG. 6, since the tip of the lock member 23 projects above the movable hook-shaped piece 7, the movable hook-shaped piece 7 is kept in a locked state in which the movable hook-shaped piece 7 is engaged with the protruding piece 14. Therefore, the opening / closing door 2 cannot be opened even if the cylinder lock 10 is illegally operated using a duplicate key or the like.

When the solenoid 24 is energized to excite the solenoid by an operation from a central control room or the like, the operating piece 30 is moved upward as shown in FIGS.
Is rotated and the rotation is transmitted to the rotation link 26 to retract the lock member 23, whereby the locked state is released. Therefore, by unlocking the cylinder lock 10 with the key 13 and moving the connecting rod 8 upward, the engagement between the movable hook-shaped piece 7 and the protruding piece 14 is released, and the opening / closing door 2 can be opened. In addition,
When the rotation of the rotary link 25 is transmitted to the rotary link 26, an inevitable play is caused between the forked portion 31 and the pin 32 so that the rotary link 25 slightly rotates and then the rotary link 26. Since the rotation is transmitted to, the collision between the stopper 35 and the bifurcated portion 31 is avoided by the slight rotation, and the rotation is smoothly transmitted. That is, the transmission from the driving side to the driven side is performed smoothly regardless of the presence of the stop portion 35. When the solenoid 24 is demagnetized and the operating piece 30 moves downward due to the elasticity of the coil spring 21, the rotary link 25 rotates in the opposite direction and the rotary link 26 moves.
Is rotated in the opposite direction, the tip of the lock member 23 is projected again onto the movable hook-shaped piece 7 to bring it into a locked state.

Then, when the solenoid 24 is demagnetized, if someone tries to forcibly retract the lock member 23 by using a wire or the like in an attempt to release the locked state, the rotary link 25 on the driving side is provided. Since the rotation link 26 on the driven side tries to rotate first without rotating, the stopping portion 35 hits the tip of the forked portion 31 and cannot rotate as shown in FIG. Therefore, the lock member 23
Cannot be forcibly retracted, and since the lock state is maintained, such fraudulent acts cannot be performed.

In this embodiment, the stopper is provided at the transmission part from the rotary link to the rotary link. However, the present invention is not limited to the transmission part between the rotary links, but may be, for example, a member having a linear motion and a rotary motion. It is also possible to prevent the transmission in the opposite direction by providing a stop portion at the transmission portion with the member for controlling the rotation. For example, FIG. 9 shows an embodiment in which a stop portion is provided at the transmission portion between the lock member 23 that makes a linear motion and the rotary link 26, and the pin 34 can be fitted into the inner surface of the forked portion 33 of the rotary link 26. The enlarged diameter portion 45 is formed, and in this embodiment, as shown in FIG.
As shown in FIG. 0, when the lock member 23 moves in the unlocking direction, the pin 34 abuts on the stop portion 35 which is the outer wall of the hook-shaped enlarged diameter portion 45, so that the power transmission from the driven side to the driving side is performed. Be blocked. Further, although not shown, a stopper may be provided at a transmission site between the operating piece 30 and the rotary link 25. Further, in this embodiment, the solenoid 24 and the lock member 23 are
Although a plurality of transmission members (rotational links 25, 26) are interposed between and, it goes without saying that the number of transmission members can be increased or decreased.

Although this embodiment has been described for a pachinko gaming machine, the present invention can also be applied to prevent unauthorized opening of other gaming machines such as slot machines.

The mechanical switch 41 monitors the state of the lock member 23 in a centralized control room or the like, and manages the presence or absence of fraud by counting and storing the number of times the lock state is released and the time in a computer. It can be used for

[0015]

As described above, the illegal opening preventing device for a gaming machine according to the present invention is provided with an opening / closing door which can be opened by a predetermined key, and a lock for keeping the opening / closing door closed on the back side of the opening / closing door. A game machine is provided with a member, and the lock member is configured to move through a transmission mechanism by energizing an electric drive source provided on the back side of the opening / closing door to unlock the opening / closing door. In the transmission mechanism, a slight play is provided in which the motion is not transmitted to the driving side even if the driven side moves, and the driven side moves when the driven side moves in the unlocking direction without moving the driving side. Since the transmission in the opposite direction is blocked by contacting the stop formed on the transmission mechanism, and the locked state is not released without the electric drive source being energized, the electric drive source is Locked without power Was released eliminated can turn so as to release the illegally door action is effective to allow more reliably prevented unauthorized opening.

[Brief description of drawings]

FIG. 1 is a perspective view of a gaming machine according to the present invention when an opening / closing door is opened.

FIG. 2 is a perspective view of an unauthorized opening prevention device for a gaming machine according to the present invention.

FIG. 3 is a vertical cross-sectional view of the unauthorized opening prevention device according to the present invention.

FIG. 4 is an operation state diagram of FIG.

FIG. 5 is an enlarged perspective view of a main part of the unauthorized access prevention device according to the present invention.

FIG. 6 is an enlarged view of a main part of FIG.

FIG. 7 is an operation state diagram of FIG. 6;

FIG. 8 is an operation state diagram of FIG. 6;

FIG. 9 is an enlarged view of a main part showing another embodiment of the unauthorized opening prevention device according to the present invention.

10 is an operation state diagram of FIG. 9.

[Explanation of symbols]

1 frame 2 open / close door 4 lock mechanism 7 Movable hook-shaped pieces 13 keys 14 Projection 23 Lock member 24 Solenoid (electric drive source) 25 Rotating link (motor side) 26 rotating link (driven side) 31 Bifurcated part 32 pins 35 Stop 41 mechanical switch

Claims (3)

[Claims] 1. An opening / closing door which can be opened by a predetermined key is provided, a lock member for keeping the opening / closing door closed is provided on the back side of the opening / closing door, and the locking member is provided on the back side of the opening / closing door. In a gaming machine configured to move through a transmission mechanism and release the locked state of the opening / closing door by energizing the electric drive source, even if the driven side of the transmission mechanism moves, the motion is the driving side. A slight play that is not transmitted to the drive mechanism is provided, and when the driven side moves in the unlocking direction without the driven side moving due to the play, the driven side comes into contact with the stop portion formed in the transmission mechanism and moves in the opposite direction. A device for preventing unauthorized opening of a game machine in which transmission is blocked and the locked state is not released without the electric drive source being energized. 2. The unauthorized opening prevention device for a gaming machine according to claim 1, wherein the electric drive source is a solenoid, and the transmission mechanism is a link mechanism. 3. The unauthorized opening preventing device for a gaming machine according to claim 1, further comprising means for detecting the state of the lock member by an electric signal.