JPH0421509B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention uses magnets in pachinko machines to guide batted balls to the winning hole to fraudulently obtain prize balls, and to prevent unauthorized prize winning by opening the glass door unnecessarily. This invention relates to a device for preventing illegal acts such as stealing a ball.

[Prior art and its problems] One of the most powerful methods of cheating in pachinko machines is to place a magnet in front of a glass door to guide the ball to the winning slot. Therefore, effective preventive measures against such fraudulent acts have long been desired.

On the other hand, in a pachinko machine, a locking device is attached to the glass door that covers the front of the game board, so that if a ball gets stuck on the game board, the clerk opens the glass door with a key and takes care of it. However, there have been many cases of malicious acts in which players use duplicate keys to open the glass door without being seen by store staff, widen the distance between the nails near the winning hole, etc., to fraudulently obtain prize balls. Measures to prevent these problems are strongly desired.

In order to prevent fraud using magnets as described above, the fraud prevention device disclosed in Japanese Patent Application Laid-open No. 129084/1984 installs a magnetic detector in a pachinko machine, and when this detector detects magnetism, a relay is activated. The device was designed to prevent the game from continuing by turning off the power to the ball firing motor, but even though this fraud prevention device could prevent fraud using the magnets mentioned above, it did not allow the use of a duplicate key. We cannot deal with fraud in which the glass door is opened using a glass door.

[Object of the Invention] Therefore, the object of the present invention is to detect fraudulent acts using magnets and fraudulent acts using duplicate keys as described above at an early stage, and to prevent damage from occurring.

Another object of the present invention is to provide a device that can prevent such unauthorized use of magnets and duplicate keys; The purpose is to prevent this from occurring.

[Means for Achieving the Object] In order to achieve the object, the present invention provides a first reed switch that is turned on by detecting magnetic force near the winning opening on the game board, and a first reed switch that is turned on by detecting magnetic force. A micro switch that is turned on is provided, the first reed switch and the micro switch are provided in parallel to a self-holding circuit of the relay, and a relay contact that is turned off when the relay is self-held is provided in the power supply circuit of the batted ball firing motor; Furthermore, the present invention aims to provide a fraud prevention device for a pachinko machine, characterized in that a second reed switch for releasing the self-holding of the relay is provided at a position apart from the first reed switch within the opening of the glass door. It is something.

[Function] When the first reed switch detects magnetic force or the glass door is opened, the relay is self-retained, the batted ball firing motor stops, and this state remains the same as the second reed switch.
It will not be released unless the reed switch is activated.

[Example] In the figure, 1 is the pachinko machine main body, 2 is its front frame, 3 is a game board, 4 is a metal glass door fitted with glass that covers the front of the game board 3, and one side is the front frame 2. It is pivoted to the periphery of the window hole so that it can be opened and closed. Reference numeral 5 denotes a cylinder lock of a glass door locking device provided on the open side of the glass door 4. When a predetermined key is inserted from the front and rotated, the glass door 4 is opened. A prize opening 6 is provided on the front side of the game board 3, and a first reed switch 7 that is turned on by detecting magnetic force is provided on the back side of the game board 3 near the winning hole 6. Reference numeral 8 denotes a micro switch mounted on the game board 3 and located in the space between the inner side edge of the glass door 4 and the game board 3 on the pivoting side of the glass door 4. Turns on when is released. Fig. 3 shows the electrical circuit of this device. Numeral 9 is a switch that is turned on by operating a handle 10 for ejection and ejection protruding from one edge of the lower front of the pachinko machine, and numeral 11 is a motor for ejecting balls. be. Reference numeral 12 denotes an indicator lamp provided on the front upper curtain plate of the pachinko machine. 13 is a rectifying bridge circuit, and a self-holding relay 14 and a self-holding release relay 15 are provided in parallel on the secondary side thereof. In the self-holding circuit of one relay 14, a relay contact 16 that is turned on by excitation of the relay 14 is connected in parallel with the first reed switch 7 and the micro switch 8.
connected in series with the circuit. 17 is a second reed switch for self-hold release connected in series with the other relay 15, and the second reed switch is located at a position away from the first reed switch 7 on the back side of the game board It is provided in a place away from the prize opening, and when this second reed switch 17 is turned on and the relay 15 is energized, the normally closed relay contact 18 connected in series with the relay 14 is turned off and the relay 14 is turned off.
self-retention is released. Note that 19 is a normal relay contact that is connected in series to the power circuit of the indicator lamp 12 and turns on when the relay 14 is energized; It is a normally closed relay contact that turns off. Also, as shown in Fig. 4, the relay 14
A normally open relay contact 21 which is turned on by excitation is provided in the power circuit of the alarm buzzer 22 and the in-store announcement device 23. This announcement device can be used by pre-recording information such as "A fraud prevention device is currently operating. Please check the store." on a tape recorder or voice synthesis LSI, etc., and then turning the power on. When entering the store, a predetermined announcement is automatically broadcast into the store at the same time as an alarm buzzer sounds.

In the pachinko machine fraud prevention device configured in this way, when an unauthorized player brings a magnet close to the winning hole 6, the first reed switch 7 is turned on and the relay 14 is turned on.
is excited. Therefore, when the ball firing motor 11 is stopped and the ball cannot be fired, the display lamp 12 is turned on, the alarm buzzer 22 is sounded, and a predetermined message is broadcast in the store to prevent fraudulent acts.

Further, when the glass door 4 is opened, the micro switch 8 is turned on and the relay 14 is similarly excited. The excitation of the relay 14 is not released even if the glass door 4 is subsequently closed because its self-holding circuit is activated. In order to release the self-holding of the relay 14, it is necessary to bring a magnet (not shown) close to the surface of the game board 3 where the second reed switch 17 is hidden, and turn on the second reed switch 17 with its excitation. .
Then, the relay 15 is energized and its normally closed relay contact 18 is turned off, so that the self-holding of the relay 14 is released. In other words, when the glass door 4 is opened by an authorized clerk, the self-holding of the relay 14 can be immediately released by opening the glass door 4 and then bringing the magnet close to a predetermined position on the game board 4. However, if an unauthorized person opens the door, he or she does not know the procedure for releasing self-holding by the second reed switch 17, so the indicator lamp 12 continues to light up after the glass door is opened, and at the same time the batted ball firing motor 11 rotates. Since the game does not proceed properly, the game cannot be continued and cheating can be easily discovered.

[Effects of the Invention] As explained above, in the present invention, the self-holding of the relay for fraudulent display is not released unless the second reed switch is activated, so that fraud using a magnet and a duplicate key can be used to close the glass door. This has the effect of preventing unauthorized opening. Moreover, by providing the second reed switch for canceling self-hold in the opening of the glass door, the game cannot be continued unless the user knows the procedure for canceling self-hold. This has the advantage that a regular store clerk who knows the cancellation procedure can easily operate the game so that the game can be continued without much effort. Furthermore, since it is constructed with a simple circuit, it can be installed at low cost and fraud can be effectively prevented, making it very useful for pachinko parlors.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a front view of the pachinko machine, FIG. 2 is a partial sectional view of the pachinko machine, and FIGS. 3 and 4 are electrical circuit diagrams. 1...Pachinko machine body, 4...Glass door, 6...
...Winning port, 7...First reed switch, 8...Micro switch, 11...Battered ball launch motor, 1
4, 15...Relay, 16, 18, 19, 20,
21... Relay contact, 17... Second reed switch.

Claims (1)

[Claims] 1. A first reed switch that is turned on by detecting magnetic force is provided near the winning opening on the game board, and a micro switch that is turned on when the glass door is opened is provided, and the first reed switch and the micro switch are connected to a relay. A relay contact is provided in parallel with the self-holding circuit, and turns off when the relay is self-holding, in the power supply circuit of the batted ball firing motor, and a second reed switch that releases the self-holding of the relay is connected to the opening of the glass door. A tamper prevention device for a Pachinko machine, characterized in that it is provided at a position away from the first reed switch within the machine.