JP2008022900A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine provided with a control board protected from both of common mode noise and noise generated in a game machine frame body turned to a ground potential. <P>SOLUTION: The game machine comprises: the control board 300 where a control means for controlling the execution of games is mounted; and a main body frame 12 provided with the control board 300 in the inside. The control board 300 has: an inductor 319 and a capacitor 314 for eliminating the common mode noise by leading it out through a short-circuiting electric wire 312 to the main body frame 12; and a bead core 310 provided on the short-circuiting electric wire 312 for eliminating noise flowing through the short-circuiting electric wire 312. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a gaming machine having a control board that is protected from both common mode noise and noise generated in a gaming machine frame that is at a ground potential.

  Conventionally, on a control board used in a gaming machine such as a pachinko machine, an electronic circuit that controls processing of the game is formed. Various driving devices are electrically connected to the electronic circuit. For example, in a pachinko machine, there is a driving device such as a big prize opening that is opened when a big hit called an attacker occurs and a large number of pachinko balls can be won. In the above-mentioned attacker, static electricity is likely to be generated due to friction between a large amount of metal pachinko spheres or friction between the attacker and the pachinko sphere, and noise caused by the generated static electricity (so-called normal mode noise) reaches the electronic circuit of the control board. In some cases, the control processing of the game by the control board may cause a malfunction.

  In Patent Document 1, for example, a normal mode generated by an attacker is connected to a housing or the like through a capacitor having an impedance for passing a signal in a frequency band of normal mode noise caused by static electricity from between the connection between the attacker and the control board. Noise is almost eliminated by this capacitor.

JP 2003-236210 A

  However, in Patent Document 1, for example, current flows from the electronic circuit to the ground through the stray capacitance between the windings of the transformer, so that common mode noise generated between each positive and negative line and the ground, for example, a housing, etc. Static electricity is generated in the ground, and noise removal measures against noise flowing into the electronic circuit from the ground due to the generated static electricity are not taken, and those noises reach the electronic circuit of the control board, and the control processing of the game by the control board There is a problem that causes malfunction.

  Therefore, an object of the present invention is to provide a gaming machine having a control board that is protected from both common mode noise and noise generated in a gaming machine frame that is at a ground potential.

Means and effects for solving the problems

  In order to achieve the above object, the present invention comprises a control board on which a control means for controlling the execution of a game is mounted, and a gaming machine frame body in which the control board is provided, and the control board has a common mode noise. And a filter circuit that is removed by being led out to the gaming machine frame through the short-circuited wire, and a noise filter member that is provided on the short-circuited wire and removes noise flowing through the short-circuited wire.

  According to said structure, the common mode noise which generate | occur | produced in the control board is derived | led-out by the filter circuit via a short circuit wire to a gaming machine frame, and is removed by a noise filter member. Further, when noise due to static electricity or the like is generated in the gaming machine frame and this noise enters the control board via the short-circuited wire, it is removed by the noise filter member. Thus, a control board that is protected from both common mode noise and noise generated on the ground side of the gaming machine frame can be provided, so that a highly reliable gaming machine can be obtained.

  The noise filter member in the present invention may be a bead core that absorbs a high frequency noise component and removes it as heat.

  According to said structure, since noise can be removed using a general bead core, the cost increase of a game machine can be prevented.

  Further, according to the present invention, the control board includes a printed board, a holding hole formed in the printed board, and a filter holding member that is formed to be able to fit into the holding hole and holds the noise filter member.

  According to the above configuration, after the noise filter member is held by the filter holding member, the noise filter member is integrated with the printed board by fitting the filter holding member into the holding hole formed in the printed board. Can do. Accordingly, since the noise filter member can be provided in advance on the printed board, the noise filter member can be easily attached to the short-circuited wire when the control board is assembled to the gaming machine frame body and wiring work is performed.

  Hereinafter, preferred embodiments of the present invention will be described. In the embodiments described below, a case where the present invention is applied to a first type pachinko gaming machine (also referred to as “digital pachi”) is shown as a preferred embodiment for a gaming machine according to the present invention.

(Control board 300)
First, a control board 300 mounted on the gaming machine of the present embodiment will be described with reference to FIGS. As shown in FIG. 1, the control board 300 is a flexible printed circuit board 301 (hereinafter referred to as FPC) on which surface mount components including an IC chip 302, a capacitor 303, a resistor 304, a connector 305, and the like are mounted. The FPC 301 is made of a flexible substrate made of a resin film such as polyimide having heat resistance and flexibility by a casting method, a plating method, a thermoplastic polyimide method, etc., and copper or a copper alloy provided so as to cover the surface thereof. And a conductor. In the FPC 301, one surface is a surface on which the components are mounted, and the other surface is a surface on which a wiring pattern is formed. Note that the wiring pattern may be formed on both surfaces of the FPC 301.

  Further, a so-called through hole (not shown) is formed in the FPC 301. In this through hole, the cylindrical conductor is provided at a position corresponding to the lead L (terminal) of the surface mount component, and electrically connects the conductor on the wiring pattern side and the conductor on the component side. Then, the surface mounting component is mounted on the FPC 301 by inserting the lead L through the through hole and placing the surface mounting component on the FPC 301 and soldering the lead of the surface mounting component and the FPC 301.

  Further, as shown in FIG. 1, a holding hole 308 is formed in the FPC 301. The holding hole 308 is a through hole that penetrates the FPC 301 in a columnar shape. Further, a bead core holding rubber 309 fitted with a bead core 310 is fitted into the holding hole 308. The bead core 310 uses a mixed ferrite called soft ferrite whose main component is iron as a magnetic core of a toroidal core. When this bead core 310 is attached to a cable in which a noise current flows, the spatial magnetic field generated by the noise current flowing in the cable is converged by the permeability of the bead core 310 and converted to thermal energy by the loss principle of the bead core. That is, the bead core 310 has a function of changing the current energy of noise into thermal energy via magnetic energy. The bead core holding rubber 309 is a heat-resistant rubber and can withstand the heat generated by the bead core 310. Further, the bead core holding rubber 309 is a rubber having an electrical disconnection property so as not to affect the mounted components of the control board 300.

  Further, the bead core 310 is substantially cylindrical. The bead core 310 has an insertion hole 311 passing through the upper surface and the lower surface on the central axis. In addition, the insertion hole 311 is inserted with a short-circuit wire 312 that connects a line connecting capacitors 314 and 314 described later and a main body frame 12 having a ground potential described later. The bead core holding rubber 309 has a conical shape whose outer shape is cut off at the tip, and the cut-off side is the lower side. The bead core holding rubber 309 has a bead core fitting hole 313 on the central axis. The bead core fitting hole 313 is substantially cylindrical and penetrates the upper surface and the lower surface of the central axis of the bead core holding rubber. Here, the bead core fitting hole 313 substantially matches the outer shape of the bead core 310, and the bead core 310 can be fitted into the bead core fitting hole 313. Further, the outer diameter of the bead core holding rubber increases as it goes from the lower surface to the upper surface of the bead core holding rubber 309. Thus, as shown in FIG. 2, when the bead core holding rubber 309 is inserted into the holding hole 308, the bead core holding rubber 309 is fitted into the holding hole 308 during insertion.

(Mechanical structure of gaming machine)
Next, a gaming machine having the control board 300 will be described with reference to FIGS. FIG. 4 is a perspective view showing an overview of the pachinko gaming machine 10 in the present embodiment. FIG. 5 is a back view of the pachinko gaming machine 10 shown in FIG.

  As shown in FIG. 4, the pachinko gaming machine 10 includes a main body frame 12 having an opening on the front surface, various components disposed inside the main body frame 12, and a shaft that can be opened and closed in front of the main body frame 12. It is composed of a worn door 11. This door 11 is for closing an opening from the front, and a game is normally performed in the closed state. Further, on the front surface of the main body frame 12, an upper plate 13a, a lower plate 13b, and a firing handle 14 for storing game balls are arranged.

  A protective plate 19 having transparency is disposed on the door 11. The protection plate 19 is disposed so as to face the front surface of a game board (not shown) in a state where the door 11 is closed.

  The firing handle 14 is provided so as to be rotatable with respect to the main body frame 12. On the back side of the firing handle 14, a firing solenoid (not shown) as a driving device is provided. Further, a touch sensor (not shown) is provided on the peripheral edge of the firing handle 14. When the touch sensor is touched by the player, it is detected that the firing handle 14 is gripped by the player. When the firing handle 14 is gripped by the player and is rotated clockwise, power is supplied to the firing solenoid, and the game balls stored in the upper plate 13a are sequentially fired onto the game board. The game board is provided with a winning opening and the like, and a game is advanced by entering a game ball into the winning opening.

  In addition, an effect image related to the game is displayed on a liquid crystal display device (not shown) arranged behind the game board (on the back side). For example, for each of a plurality of symbol strings (three columns in the present embodiment), symbols (which are also identification information for production. For example, numbers from “0” to “9”) are displayed in a variable manner. The

  Further, as shown in FIG. 5, a prize ball tank 70 or the like for temporarily storing game balls is provided on the back surface of the pachinko gaming machine 10, and the control board 300 described above is attached. The control board 300 includes, for example, an external connection terminal board 100A for electrically connecting a prepaid card unit (not shown) that processes information related to a prepaid card outside the pachinko gaming machine 10 and the main body of the pachinko gaming machine 10, and a prize opening. It includes a CR prize ball payout control board 100B and the like on which a circuit that causes a predetermined number of prize balls to be paid out by a prize ball payout mechanism (not shown) according to the type of the winning ball is mounted.

  Although not shown, the short-circuit wire 312 is connected to the main body frame 12 that is at ground potential.

(Electric configuration of gaming machine)
A control circuit of the pachinko gaming machine 10 in this embodiment will be described with reference to FIG. FIG. 3 is a schematic diagram showing a control circuit of the pachinko gaming machine 10 in the present embodiment.

  As shown in FIG. 3, the main control circuit 60 includes a main CPU 66, a main ROM (read only memory) 68, and a main RAM (read / write memory) 70. The main control circuit 60 controls the progress of the game. The main CPU 66 is connected to a main ROM 68, a main RAM 70, and the like, and has a function of executing various processes according to a program stored in the main ROM 68.

  A program for controlling the operation of the pachinko gaming machine 10 by the main CPU 66 is stored in the main ROM 68. In addition, a jackpot determination table and special symbols that are referred to when a jackpot determination is made by random lottery. Various tables such as a variation pattern table for determining a variation pattern are also stored.

  In the present embodiment, the main ROM 68 is used as a medium for storing programs, tables, and the like. However, the present invention is not limited to this, and any other storage medium can be used as long as it is a computer-readable storage medium. For example, it may be recorded on a storage medium such as a hard disk device, a CD-ROM, a DVD-ROM, or a ROM cartridge. Further, these programs may not be recorded in advance, but may be downloaded and recorded in the main RAM 70 after the power is turned on. Furthermore, each program may be recorded on a separate storage medium. In this embodiment, the main CPU 66, the main ROM 68, and the main RAM 70 are provided separately. However, a one-chip microcomputer in which these are integrated may be used.

  The main RAM 70 has a function of storing various flags and variable values as a temporary storage area of the main CPU 66.

  The main control circuit 60 also has a command for a reset clock pulse generating circuit 62 that generates a clock pulse of a predetermined frequency, an initial reset circuit 64 that generates a reset signal when the power is turned on, and a sub-control circuit 200 described later. A serial communication IC 72 for supplying the lamp and a lamp control circuit 76 for controlling the lamp. The reset clock pulse generation circuit 62, the initial reset circuit 64, the serial communication IC 72, and the lamp control circuit 76 are connected to the main CPU 66.

  Also, various devices are connected to the main control circuit 60. For example, as shown in FIG. 3, the V / count sensor 102, the count sensor 104, the general winning ball sensors 106, 108, 110, 112, and the passage A ball sensor 114, a start winning ball sensor 116, a normal electric accessory solenoid 118, a big prize opening solenoid 120, and a seesaw solenoid 122 are connected.

  The V / count sensor 102 is provided in a specific area in the special winning opening. The V / count sensor 102 supplies a predetermined detection signal to the main control circuit 60 when the game ball passes through a specific area in the special winning opening.

  The count sensor 104 is provided in a general area different from the specific area in the special winning opening. The count sensor 104 supplies a predetermined detection signal to the main control circuit 60 when the game ball passes through the general area at the special winning opening.

  The general winning ball sensors 106, 108, 110, and 112 are provided at a general winning opening (not shown). The general winning ball sensors 106, 108, 110, and 112 supply a predetermined detection signal to the main control circuit 60 when a game ball passes through each general winning port.

  The passing ball sensor 114 is provided in a ball passing detector (not shown). The passing ball sensor 114 supplies a predetermined detection signal to the main control circuit 60 when a game ball passes through the ball passing detector.

  The start winning ball sensor 116 is provided at a start port (not shown). The start winning ball sensor 116 supplies a predetermined detection signal to the main control circuit 60 when a game ball wins a start opening.

  The ordinary electric accessory solenoid 118 is connected to a blade member (not shown) via a link member (not shown), and the blade member is opened or closed in accordance with a drive signal supplied from the main CPU 66. State.

  The special winning opening solenoid 120 is connected to a shutter (not shown), and drives the shutter according to a drive signal supplied from the main CPU 66 to make the special winning opening open or closed.

  The seesaw solenoid 122 has a plate shape and is connected to a seesaw provided inside the shutter. The seesaw solenoid 122 displaces the seesaw according to a drive signal supplied from the main CPU 66 and changes the inclination of the seesaw. As a result of tilting the seesaw, the seesaw is switched so as to easily pass through the specific region or to pass through the general region.

  Further, the sub-control circuit 200 is connected to the serial communication IC 72. The sub control circuit 200 performs display control, audio control, and the like according to various commands supplied from the main control circuit 60.

  In the present embodiment, the main control circuit 60 is configured not to supply commands to the sub control circuit 200 and to prevent signals from being supplied from the sub control circuit 200 to the main control circuit 60. Not limited to this, the sub control circuit 200 may be configured to transmit a signal to the main control circuit 60.

  A DC power supply device (not shown) that changes the AC power supply 318 to a DC power supply is provided in the main body frame 12. The DC power supply device includes a transformer 315, a rectifier 316, and a smoothing unit 317 shown in FIG. 3. By changing the AC power supply 318 to a DC power supply, power is supplied to the main control circuit 60 and the sub control circuit 200. Supply. The AC power supply 318 and the transformer 315, the transformer 315 and the rectifier 316, the rectifier 316 and the smoother 317 are connected by two power lines (+ side and-side), respectively. Further, the smoothing unit 317 is connected to the main control circuit 60 and the sub control circuit 200, respectively.

  The transformer 315 is an electronic component that converts the voltage level using electromagnetic induction. The alternating current of the input winding (primary winding) generates a changing magnetic field, which is transmitted to the output winding (secondary winding) coupled with the mutual inductance, and converted back into current, thereby reducing the voltage step-down. To do.

  The rectifying unit 316 is a diode and has a rectifying action because it allows current to flow only in one direction. As a result, the rectified voltage can be output.

  The smoothing unit 317 can smooth the ripple voltage with waves output from the rectifying unit 316 to a state close to direct current using a capacitor or a choke coil.

  In addition, an inductor 319 is provided in each of the two power lines connecting the transformer 315 and the rectifier 316 of the DC power supply device, and two capacitors 314 are provided between the two power lines. Connected by line. Each connection point is on the rectifying unit 316 side of the inductor 319. Further, a short-circuited wire 312 extends from between the two capacitors 314 and is connected to the main body frame 12 that is at the ground potential through the bead core 310 described above.

(Manufacturing process of control board 300)
Next, a manufacturing process of the control board 300 included in the gaming machine will be described. On the control board 300, a wiring pattern is printed on the FPC 301 by an apparatus (not shown) and a through hole (not shown) is formed. Then, a holding hole 308 is formed in the FPC 301. Thereafter, the surface mount component is soldered to the FPC 301. Further, as shown in FIG. 2, the bead core holding rubber 309 fitted with the bead core 310 is fitted into the holding hole 308 and fixed. As a result, the bead core 310 and the FPC 301 can be integrated, and the bead core 310 can be provided in advance in the FPC 301. Therefore, when the control board 300 is assembled to the main body frame 12 and wiring work is performed, the bead core 310 is provided. Can be easily attached to the short-circuited wire 312. Then, the shorted wire 312 connected to the line between the capacitors 314 and 314 is inserted into the bead core insertion hole 311 of the bead core 310. Further, the inserted short-circuited wire 312 is connected to the main body frame 12 having a ground potential.

(Operation of control board 300)
Next, the operation of the control board in the above configuration will be described with reference to FIG. First, in the transformer 315, the voltage from the AC power supply 318 is stepped down to a voltage that can be used by the control board 300. Then, the rectifying unit 316 rectifies the stepped down voltage and outputs a ripple voltage. Further, the smoothing unit 317 smoothes the ripple voltage to a state close to a DC voltage. Thereafter, power is supplied to the main control circuit 60 and the sub control circuit 200 connected from the smoothing unit 317.

  Further, the common mode noise generated in the control board 300 or the like flows from the AC power supply 318 to the rectification unit 316 through the power supply transformation unit 315 on the two connected power supply lines. Although the current from the AC power supply 318 also flows on these two power supply lines, it is filtered by an LC filter circuit composed of an inductor 319 and a capacitor 314, and only common mode noise passes through the capacitor 314. The common mode noise that has passed through the capacitor 314 is bypassed to the short-circuited wire 312 and led to the main body frame 12 that is at the ground potential. Thereby, common mode noise can be removed.

  Furthermore, static electricity or the like is generated in the main body frame 12, and noise may enter the control circuit 300 from the main body frame 12 that is at the ground potential via the short-circuit wire 312. In this case, noise is removed by converting noise energy into heat by the bead core 310 provided in the short-circuited wire 312.

(Outline of this embodiment)
As described above, the pachinko gaming machine 10 according to the present embodiment includes a control board (control board 300) on which control means for controlling the execution of a game is mounted, and a gaming machine frame body (main body frame 12) provided with a control board therein. The control board is provided with a filter circuit (inductor 319, capacitor 314) for removing the common mode noise by deriving the common mode noise to the gaming machine frame through the short circuit wire (short circuit wire 312), and the short circuit wire. And a noise filter member (bead core 310) for removing noise flowing through the short-circuited wire.

  According to said structure, the common mode noise which generate | occur | produced in the control board is derived | led-out by the filter circuit via a short circuit wire to a gaming machine frame, and is removed by a noise filter member. Further, when noise due to static electricity or the like is generated in the gaming machine frame and this noise enters the control board via the short-circuited wire, it is removed by the noise filter member. Accordingly, since it is possible to provide a control board that is protected from both common mode noise and noise generated in the gaming machine frame that is at the ground potential, it is possible to obtain a highly reliable gaming machine.

  Further, the pachinko gaming machine 10 of the present embodiment is configured such that the noise filter member is a bead core that absorbs a high-frequency noise component and removes it as heat.

  According to said structure, since noise can be removed using a general bead core, the cost increase of a gaming machine can be prevented.

  Further, according to the present embodiment, the control board is formed so as to be able to fit into the printed board (FPC 301), a holding hole (holding hole 308) formed in the printed board, and the holding hole, and holds the noise filter member. And a filter holding member (bead core holding rubber 309).

  According to the above configuration, after the noise filter member is held by the filter holding member, the noise filter member is integrated with the printed board by fitting the filter holding member into the holding hole formed in the printed board. Can do. Accordingly, since the noise filter member can be provided in advance on the printed board, the noise filter member can be easily attached to the short-circuited wire when the control board is assembled to the gaming machine frame body and wiring work is performed.

  In addition, in this embodiment, although demonstrated using the pachinko gaming machine 10 as an example of a gaming machine, it is not limited to this, For example, a pachislot machine and an amusement machine may be used.

(Modification)
Moreover, although this invention was demonstrated based on suitable embodiment, this invention can be changed in the range which does not exceed the meaning. That is, in this embodiment, an LC filter circuit composed of an inductor 319 and a capacitor 314 is used as a circuit for removing common mode noise. However, a circuit that can remove common mode noise, for example, a resistor and a capacitor. An RC filter circuit configured may be used.

  Further, in the present embodiment, the short-circuited wire 312 is merely inserted through the bead core 310, but is not limited thereto. For example, the impedance of the bead core 310 may be increased by inserting the short-circuit wire 312 into the bead core 310 and then inserting the short-circuit wire 312 from above the bead core 310. In that case, the shape of the bead core fitting hole 313 of the bead core holding rubber 309 for fitting the bead core 310 also changes.

  In the present embodiment, the bead core 310 has a substantially cylindrical shape, but is not limited thereto. Further, the shape of the bead core fitting hole 313 of the bead core holding rubber 309 for fitting the bead core 310 also changes in accordance with the shape of the bead core 310.

  In this embodiment, the outer shape of the bead core holding rubber 309 is a conical shape with the tip cut off, and is a substantially cylindrical shape of the holding hole 308. However, the present invention is not limited to this. Any shape can be used as long as it is held in the shape.

  Further, in this embodiment, as the material for the bead core holding rubber 309, rubber having an electrical disconnection property and heat resistance is used, but the present invention is not limited to this.

  Although the present invention has been described in the preferred embodiments above, the present invention is not so limited. It will be understood that various other embodiments may be made without departing from the spirit and scope of the invention. Furthermore, in this embodiment, although the effect | action and effect by the structure of this invention are described, these effect | actions and effects are examples and do not limit this invention.

In this embodiment, the perspective view which shows a mode that a bead core is fitted to a filter holding member, and a mode that a filter holding member is fitted to a printed circuit board. In this embodiment, the perspective view which shows a mode that the short circuit wire was penetrated to the bead core in a control board. In this embodiment, the schematic showing the control circuit of a pachinko game machine. The perspective view of a pachinko machine. The perspective view of the back surface of a pachinko gaming machine.

Explanation of symbols

10 Pachinko machines (game machines)
12 Body frame (game machine frame)
300 Control board 301 FPC (printed circuit board)
308 Holding hole (holding hole)
309 Bead core holding rubber (filter holding member)
310 Bead core (noise filter member)
312 Short circuit wire 314 Capacitor (filter circuit)
319 Inductor (filter circuit)

Claims (3)

A control board mounted with control means for controlling the execution of the game;
And a gaming machine frame provided with the control board inside,
The control board is
A filter circuit for removing common mode noise by deriving the gaming machine frame through a short-circuited wire;
A game machine comprising: a noise filter member provided on the short-circuited wire and configured to remove noise flowing through the short-circuited wire.   The gaming machine according to claim 1, wherein the noise filter member is a bead core that absorbs a high-frequency noise component and removes it as heat. The control board is
A printed circuit board,
A holding hole formed in the printed circuit board;
The game machine according to claim 1, further comprising: a filter holding member that is formed so as to be fitted in the holding hole and holds the noise filter member.

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