JPH0319910Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a fraud prevention device that guides the balls by bringing a strong magnet close to the play board of a pachinko machine, and prevents fraudulent acts such as illegally discharging prize balls. To provide a fraud prevention device in which a ball blocking plate is advanced into the supply port when a magnet approaches the ball supply port of the device to cut off the supply of balls to a firing position and prevent fraudulent acts. It is in.

Conventional fraud prevention devices for pachinko machines that have been commonly used all have a switch that turns on when fraud is committed using a magnet, and alerts the hall management with a buzzer, lamp, etc., or alerts the fraudulent player. There are devices that sound alarm buzzers to warn people, but if a fraudulent act is reported, the fraudulent act can still continue until the wrongdoer is warned and stopped. This has caused inconveniences such as causing problems such as disturbing the players and making other players around them feel uncomfortable.

This idea eliminates the drawbacks of the conventional technology, and its gist is that a solenoid can be used to operate the operating rod that moves the ball blocking plate that can freely slide against the ball supply opening in the ball supply device. established in
And the solenoid is turned on once when it detects the approach of the magnet.
Then, the state is associated with a magnetic detector that has the characteristic of connecting, and the detector is placed at the front and back of the pachinko machine at an appropriate location, and when the magnetic force is detected, the operating lever is moved up and down by the operation of a solenoid, and the lever is connected to the magnetic detector. This invention relates to an anti-tampering device for a pachinko machine in which a ball blocking plate is advanced into the supply port to block the supply of balls.

This invention will be explained below based on an embodiment shown in the drawings.

In Figures 1 and 2, 1 is a ball supply device that supplies balls from a ball tray at the front of the pachinko machine to a firing position, and includes a ball supply path (not shown) from the ball tray at the front.
A hit ball blocking plate 3 is slidably faced to the hitting ball supply port 2 communicating with the hitting ball blocking plate 3, and one end of an L-shaped operating rod 4 is connected to one end of the hitting ball blocking plate 3. The tip of the blocking plate 3 is moved forward and backward into the supply port 2 to open and close it, and its operating rod 4 is provided to be able to operate in conjunction with a solenoid 5 provided on the back side of the board 7. In the embodiment, a long hole 8 is drilled near one side of the ball blocking plate 3, and a shaft 9 fixed to the base plate is inserted and coupled to the ball blocking plate 3.
is slidable within the range of the elongated hole 8, and the shielding plate 3
One end of an L-shaped operating rod 4 pivoted by a shaft 10 is connected to the other end, and a lever is connected to the rear side through a through hole 12 of the board 7 through a long hole 11 at the other end of the operating rod 4. Rod 13
The connecting rod 14 at one end is inserted and connected, and the lever rod 13
is provided so that it can be actuated by the solenoid 5, and the solenoid 5
The lever lever 13 is actuated by the operation of the L-shaped operating lever 4.
One end of the is raised, and the operating rod 4 is used to advance the blocking plate 3 to the supply port 2.

6 is a magnetic detector that turns on when a magnetic field of a certain strength or higher is applied, detects the approach of a magnet, and once turned on, remains on even if the magnet moves away and the magnetic field weakens. placed at appropriate locations on the front and rear of the machine and associated with the solenoid 5;
When the magnet approaches and the magnetic force is detected by the detector 6, the solenoid is energized to operate the lever lever 13 to raise one end of the operating lever 4, and the other end causes the blocking plate 3 to enter the supply port 2. Cuts off the supply of balls to the firing position.

In the figure, 15 is a movable gutter that allows the balls to flow down one by one from the ball supply port 2, 16 is a ball waiting section that waits the balls at the firing position, and 17 is a movable gutter that receives the balls and moves them to the firing position. A swinging rod 18 for supplying balls to be transferred is connected to the swinging rod 17 at one end and has a hammer 1 at the other end.
This is a rotary operating rod that is associated with the operating rod 20 of No. 9. Further, although this embodiment shows the case of a manual handle, the present invention is not limited to this, and the provision can also be made for an electric handle.

FIG. 3 shows a circuit diagram that operates the solenoid 5 when the magnetic detector 6 detects the approach of a magnet. A resistive voltage divider circuit consisting of resistors R ₁ and R ₂ is connected to the output terminals a and b of the DC power supply A through a reset switch s, and a thyristor SCR and a relay Ry are connected in parallel to the series circuit of the magnetic detector 6. A series circuit is connected, and the solenoid 5 is connected to the magnetic detector circuit via the normally open contact 21. When the magnet approaches the magnetic detector 6 and a magnetic field acts, the detector turns ON and the voltage is transferred to the resistance voltage divider circuit. A DC voltage is applied, and a divided voltage is applied to the gate of the thyristor, which makes the thyristor conductive, energizes the relay Ry, closes the normally open contact 21, and excites the solenoid 5, which activates the ball striking plate 3. is advanced to the supply port 2 and shut off. To start playing pachinko again, the operator presses the reset switch S on the back of the game board, and the magnetic detector 6
The thyristor
There is no input to the gate of the SCR, and the thyristor is
OFF, the relay Ry is not energized and does not operate, so the normally open contact 21 is opened, the solenoid 5 is demagnetized, the ball blocking plate 3 is returned, and the supply port 2 is opened.

In the circuit diagram, _S1 is a command switch installed to short-circuit between the anode and cathode of the thyristor SCR, and is used as a relay when a predetermined number of prize balls are ejected and the game ends (commonly known as stopping).
Power is applied to Ry, the normally open contact 21 is closed, the solenoid 5 is energized, and the ball supply cutoff plate cuts off the ball. Also, D is a diode for preventing malfunction, and a thyristor.
Capacitor C ₁ and resistor R ₃ connected in parallel with SCR
The series circuit is a thyristor compensation and malfunction prevention circuit.

According to this device described above, when a player brings a magnet close to the game board surface, magnetic force is detected by magnetic detectors installed at appropriate positions in the front and rear of the pachinko machine, and the solenoid is immediately activated, and the operating rod moves the cutoff plate to the supply port. It is possible to advance the ball to block the flow of the ball and prevent the ball from being supplied to the ball firing position, so it is possible to operate the handle and fire the ball in a dry manner, which prevents fraud. In addition, the ball is reliably blocked, and once the magnet approaches and is turned on, it remains on even if the magnet moves away, completely preventing fraudulent activity.

Therefore, there is no need to monitor reports of fraudulent activities, and there are many practical benefits such as being able to avoid the hassle and trouble of warning and stopping fraudsters.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing the fraud prevention device for a pachinko machine of this invention, Fig. 2 is a rear view of the same, and Fig. 3
The figure is an electrical circuit diagram. 1...Battered ball supply device, 2...Battered ball supply port, 3...
...Ball blocking plate, 4...Operation rod, 5...Solenoid, 6...Magnetic detector.

Claims (1)

[Scope of utility model registration request] A hit ball blocking plate 3 is slidably faced to the hitting ball supply port 2 of the hitting ball supply device 1, and an operating lever 4 that is operated from the back side of the game board is connected to the blocking plate 3. The blocking plate 3 is provided so as to be moved forward and backward into the supply port 2 to open and close upon operation, and the operating rod 4 is provided so as to be operable in relation to the solenoid 5, and the solenoid 5
is associated with a magnetic detector 6 which has the characteristic of detecting the approach of a magnet and connecting the state once it is turned on,
The detectors are placed at the front and rear of the pachinko machine, and when a magnetic force is detected, a solenoid is activated to advance the ball blocking plate 3 into the supply port 2 to cut off the supply of balls to the pachinko machine. Prevention device.