JPH0319911Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a fraud prevention device for a Pachinko machine that prevents players from playing illegally by breaking open the glass door of the Pachinko machine.

Prior Art Conventionally, in a pachinko machine, the glass door was pried open with a wire, etc., and the wire was inserted into the game board surface to manipulate the game balls.As a measure to prevent illegal play, the shape of the frame of the glass door was used to break open the glass door with a wire, etc., and insert the wire into the game board. An extremely negative approach was taken, such as creating a shape that would not allow penetration. Therefore, when such fraudulent acts are about to take place, the administrator cannot foresee it and has no choice but to patrol each pachinko machine to ensure that such fraudulent acts are not carried out.

Purpose This invention was made to solve the above problems, and its purpose is to be able to predict fraudulent acts related to glass doors and prevent them before they occur.
Furthermore, it is an object of the present invention to provide a fraud prevention device for pachinko machines that can save the administrator's time and effort in monitoring to prevent fraud.

Structure of the invention In order to achieve the above-mentioned purpose, the structure of this invention is to make a glass door attached to the door frame provided in the front of the machine frame in a pachinko machine so as to be openable and closable come into contact with the door frame. An unauthorized opening detection switch is provided to detect when the contact state is released.
The unauthorized opening detecting switch is connected in series with a drive switch for a ball hitting motor provided in a pachinko machine, and fraud reporting means is provided which operates when both switches are in the on state.

Embodiment An embodiment embodying this invention will be described below with reference to the drawings.

In the drawing, 1 is a machine frame that constitutes the external shape of the pachinko machine 1, 2 is a door frame attached to the front of the machine frame 1 via a hinge 3 so that it can be opened and closed, 4 is a window formed in the door frame 2, and 5 is a window formed in the door frame 2. A metal frame attached to the periphery of the window 4, 6 a glass door hinged to one side edge of the metal frame 5 so as to cover the upper part of the window 4 so that it can be opened and closed, and 7 a lower part of the window 4 that can be opened and closed. The front door is hinged to one side edge of the metal frame 5 so as to cover the front door. Although not shown, a machine mounting frame housing a game board is attached to the back of the door frame 2, and a ball supply device for supplying pachinko balls to the ball hitting mechanism is attached to the front door 7. It is provided.

Reference numeral 8 denotes a mounting step portion formed along the inner peripheral edge of the metal frame 5, and is fixed to the door frame 2 with a plurality of fixing screws (not shown). 9 is door frame 2
A hollow protrusion formed on the entire outer periphery of the metal frame 5 so as to extend along the periphery of the window 4 on the front surface of the window 4, and for hingedly attaching the glass door 6 and the front door 7. It can be used as a housing for hinge pins, etc.

Reference numeral 10 denotes an elastic body adhesively fixed to substantially the entire circumference of the mounting step 8 of the metal frame 5, and is made of a resin material with high heat resistance, vibration absorption, or elasticity. Reference numeral 11 designates a pair of upper and lower cylindrical portions formed on the side edges of the glass door 6, into which locking pins (not shown) provided on the metal frame 5 side are removably engaged;
A glass door 6 is rotatably supported with respect to a door frame 2. When the glass door 6 is in the closed state, the engagement protrusion 12 at the rear of the open end of the glass door 6 is pressed into engagement with the elastic body 10.

Reference numeral 13 denotes a pair of front and rear glass plate storage grooves formed at appropriate intervals on the inner circumferential surface of the glass door 6, and their upper ends are open. Reference numeral 14 denotes a pair of front and rear glass plates that are inserted into each housing groove 13 from the open upper end, and are arranged at appropriate intervals in the front and rear direction, and are protected against unauthorized operation by a magnet from the front side of the front glass plate 14. It is designed to prevent you from being exposed.

Reference numeral 15 denotes a micro switch as an unauthorized opening detection switch attached to the rear surface of the door frame 2 via a support plate 16, and its plunger 15a projects forward. Micro switch 15 is the second
As shown in the figure, when the glass door 6 is in the closed state, the plunger 15a is pressed against the open rear surface of the glass door 6 and turns off. It is designed to turn on when the pressure on 15a is released even slightly. Therefore, if the player forcibly pries open the glass door 6 with a wire or the like, the glass door 6 opens to the extent that the player pries it open and the micro switch 15 is turned on.

Next, there is a fraud prevention device for a pachinko machine configured as described above. The fraud notification circuit will be explained with reference to FIG.

20 is a ball hitting motor drive switch which detects the ball hitting operation position (rotation position) of the ball hitting handle;
When the handle is rotated by the player to the ball hitting operation position, it turns on and the ball hitting motor 21 receives AC24V.
The drive power source 22 is supplied. Therefore, the ball hitting operation of the pachinko ball is performed based on the drive of the ball hitting motor 21. Reference numeral 23 denotes an alarm buzzer as a means of informing of fraud, and in this embodiment, it is provided at an upper position of the pachinko machine, and is connected in series with the micro switch 15, and its series circuit is connected to the ball hitting motor 21. connected in parallel. Therefore, when the micro switch 15 is turned on while the ball hitting motor 21 is being driven, that is, when a pachinko ball is being hit, the buzzer 23 will sound to alert the player of any fraudulent activity. Reference numeral 24 denotes a warning lamp which also serves as a means for notifying unauthorized persons, and is provided at a position adjacent to the warning buzzer 23.
3 is connected in parallel.

Next, the operation of the fraud prevention device configured as described above will be explained.

Now, operate the ball hitting handle and drive the ball hitting motor 21.
When a player is driving a pachinko ball to hit a pachinko ball, when the player forces the wire between the metal frame 5 and the glass door 6 and pries open the glass door 6, the open end of the glass door 6 The edges are pushed open. Based on this slight opening, the plunger 15a of the micro switch 15, which has been pressed against the glass door 6, is released from its pressing force, and as a result, the micro switch 15 is turned on. When the micro switch 15 is turned on, an alarm buzzer 23 and an alarm lamp 24
activates and alerts the administrator that fraudulent activity is about to occur.

Therefore, the administrator can immediately know that fraudulent activity is occurring, and can save the trouble of visiting each pachinko machine to monitor fraudulent activity. Moreover, in this case, if the glass door 6 is opened while the ball is not being hit, the warning buzzer 23 and the warning lamp 2 will be activated if the ball is hit.
4 is activated, the player is completely unable to perform a ball-hitting motion while cheating.

It should be noted that this invention is not limited to the above-mentioned embodiment, and for example, the alarm buzzer 23, the alarm lamp 2
Use only one of 4 as an alarm device,
Further, as shown in FIG. 4, the alarm buzzer 23, the alarm lamp 24, and the motor drive power source 22 may be operated by a dedicated power source 25 for the alarm.

Furthermore, as shown in FIG. 1, a switch 27 such as a micro switch that is turned off only when the lock 26 of the glass door 6 provided on the right side of the door frame 2 is opened with a key by the administrator is connected in series with the micro switch 15. When the administrator opens the glass door 6 for maintenance and inspection, the alarm buzzer 23 and alarm lamp 24 may not be activated. With this configuration, maintenance and inspection work can be carried out quickly without the need for the administrator to turn off the micro switch 15 when opening the door for inspection. In this case, the switch 27 can be turned on and off by the rotation of the lock (cylinder lock) 26, or can be turned on and off based on the operation of a glass door opening mechanism that is linked based on the unlocking operation of the lock 26. Good too.

Effects As explained in detail above, this invention makes a glass door attached to the door frame provided in front of the machine frame come into contact with the door frame so as to be openable and closable, and the contact state of the glass door with respect to the glass door is controlled. An unauthorized opening detection switch 15 is provided to detect whether the switch has been released, and the unauthorized opening detection switch 15 is connected in series with a drive switch for a ball hitting motor provided in a pachinko machine, and the unauthorized opening detection switch 15 is activated when both switches are in the on state. By providing a means, it is possible to predict fraudulent acts related to the glass door of pachinko machines and prevent them from occurring, and it also saves administrators the trouble of monitoring fraudulent acts.
The tamper alarm means does not turn on when no ball is being hit, so when the administrator opens the door for inspection, there is no need to turn off the tamper opening detection switch, allowing quick maintenance and inspection work. It has the following effects.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of the pachinko machine, Fig. 12 is a partially enlarged cross-sectional view, Fig. 3 is an electric circuit diagram of the anti-tampering device, and Figs. 4 and 5 are anti-tampering devices showing other examples of this invention. FIG. 3 is an electrical circuit diagram of the device. Machine frame 1, door frame 2, glass door 6, micro switch 15, ball hitting motor drive switch 20, ball hitting motor 21, warning buzzer 23, warning lamp 24.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A glass door 6 attached in an openable/closable manner is brought into contact with a door frame 2 provided on the front side of a machine frame 1, and the state of contact with the glass door 6 is made. A drive switch 20 for a ball hitting motor 21 is provided with an unauthorized opening detection switch 15 for detecting that the unauthorized opening detection switch 15 is released, and the unauthorized opening detection switch 15 is provided in a pachinko machine.
false alarm means 23, 2 which are connected in series with the switch 15, 20 and operate when both switches 15, 20 are in the on state.
4. A fraud prevention device for a pachinko machine, characterized by having the following features: 2. The unauthorized opening detection switch 15 is a micro switch, and is connected in series with a micro switch 27 that disables notification of unauthorized opening by unlocking the lock 26 of the glass door 6 provided in the pachinko machine, and both switches 15, The fraud prevention device for a pachinko machine according to claim 1, which is configured to operate the fraud notification means 23 and 24 which are activated when the device 27 is in the on state.