JP4819758B2 - Game machine - Google Patents

Description

  The present invention relates to a gaming machine in which trouble does not occur even if the gaming board is replaced without disconnecting a power switch.

  A ball game machine such as a pachinko machine is configured by being divided into a game board on which game parts such as an electric tulip and a symbol start port are arranged, and a main body frame having a central opening. And a game machine will be in a completion state by making a game board fit in a center opening.

  The game board is provided with a symbol display section for displaying a series of symbol variation modes by a plurality of display symbols, a grand prize opening for opening and closing the opening and closing plate, and the like. When the detection switch provided at the symbol start port detects the passage of the game ball, the winning state is entered, and after the game ball is paid out as a prize ball, the display symbol is changed for a predetermined time in the symbol display section. Thereafter, when the symbol is stopped in a predetermined manner such as 7-7-7, a big hit state is established, and the big winning opening is repeatedly opened to generate a profit state advantageous to the player.

  This type of pachinko machine is divided into a game control member provided on the back side of the game board and an electric control member provided on the main body frame side. When changing the model, only the game control member is of the new model. I try to replace it. The game control members include a main control unit that centrally controls game operations and an effect control unit that executes sound effects and symbol effects. On the other hand, the electric control member includes a launch control unit that launches a game ball onto the game board, a payout control unit that pays out the game ball to the player, and a power supply unit that supplies a necessary power supply voltage to each unit. .

  However, since the electric control member and the game control member are connected by a large number of power supply lines and a large number of signal lines, the replacement work at the time of replacement of the gaming machine is complicated. That is, prior to removing the game board from the central opening of the main body frame, a complicated separation work for separating a large number of wiring cables connecting the electric control member and the game control member is required. After that, after a new game board is fitted into the central opening of the main body frame, it is necessary to connect the new game control member and the electric control member with a number of wiring cables, which is very complicated. there were.

Therefore, in order to eliminate the complexity of the replacement work, the invention described in Patent Document 1 has been proposed. In the present invention, a male connector fixed to the gaming board and a female connector attached to the gaming machine main body are coupled to each other so that the gaming board can be mounted from the front surface of the gaming machine main body. By adopting such a configuration, there is a great advantage that even a game hall clerk who does not know the connection method of the wiring cable can definitely finish the replacement operation of the gaming machine.
Japanese Patent Laid-Open No. 2005-95201

  However, the above-described invention is not configured in consideration of the danger of technical amateurs exchanging a large number of gaming machines all at once. In other words, because the technical amateur performs replacement work, the basic work procedure of turning off the power switch after turning off the power switch and then turning on the power switch after installing the game board may not be observed. There is.

  For this reason, for example, the connector contact where a direct current actually flows may be separated relatively slowly, which causes a contact failure due to continuing arc discharge. This point is the same not only when removing the game board but also when installing the game board. Contact and separation may be repeated, and as a result, the electronic device may be damaged.

  In particular, in a gaming machine in which the gaming board is removed from the front side of the gaming machine and the gaming board is installed from the front side, the power switch arranged on the back side of the gaming machine may be forgotten to be turned off, and the replacement work is completed quickly. Therefore, the possibility of not turning off the power switch is not low.

  Here, even if an attempt is made to remove the gaming board without turning off the power switch, there is a risk of trouble during replacement of the gaming machine if a configuration in which the power switch is automatically turned off prior to connector separation can be realized. It will be resolved. Similarly, even if an attempt is made to attach the game board with the power switch on, the above-described trouble may be eliminated if a configuration in which the power switch is not turned on until the connector is securely connected can be realized.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a gaming machine that prevents a power supply trouble when replacing a gaming board.

In order to achieve the above object, the present invention provides a main control unit that mainly plays a game control operation including a lottery process executed due to a player's operation or a winning state of a game medium, and a main control A sub-control unit provided with a computer circuit that individually executes a control operation based on a control command output from the control unit, and a main control unit and a sub-control unit that generate a DC voltage based on an AC input voltage received from the outside A power supply unit that outputs a DC voltage to each part of the device, including whether or not a game state advantageous to the player is generated based on a lottery result of a lottery process executed by the main control unit. A game machine to be determined, which is divided into a game board having various game parts arranged on the front side and a main body frame having an opening for receiving the game board and a power supply unit, and is centrally arranged at appropriate positions on the back of the game board First connector group and book When the second connector group arranged on the frame is fitted, the electrical connection between the game board side circuit and the main body frame side circuit is completed, and the main body frame side includes the first connector group and the second connector group. AC input voltage from the outside in a closed circuit that includes a detection switch that operates ON / OFF according to the mating state with the connector group, a relay coil, and a power switch that operates ON / OFF based on manual operation AC input voltage received from the outside via an open / close switch that is turned on when the energizing current flows through the first circuit configured to receive the current and the relay coil of the first circuit. According to whether or not the first and second connector groups are in the fitted state even when the power switch is in the ON state. Open / close switch is ON And OFF operation, a DC voltage is configured to be up / down to be supplied to the circuit of the game board side from the power supply unit.

  The first circuit is preferably configured by connecting a plurality of detection switches in series. In this case, since a plurality of detection switches function in the AND logic, when any one detection switch reacts to the OFF state, the relay coil is de-energized, and until all the detection switches react to the ON state, the relay coil It is possible to realize a configuration that does not restore the energization.

  The detection switch is preferably configured to have an elastic piece projecting from the main body, and the detection switch is pressed when the elastic piece is pressed due to attachment of the game board to the main body frame. Is configured to operate ON. Further, it is effective that the detection switch is disposed on the inner peripheral surface of the opening of the main body frame. Alternatively, it is effective that the detection switch is disposed in the vicinity of the second connector group. In this case, when the first and second connector groups are fitted, a part on the back side of the game board presses the elastic piece of the detection switch, so that the detection switch is turned on. Is preferred.

  In any of the above aspects, the detection switch is in an OFF state when the game board is not attached to the opening of the main body frame, and the first connector group and the second connector group are completely fitted. Preferably, the detection switch is arranged to change to an ON state before and after the electrical connection between the first connector group and the second connector group is established.

  In any of the above aspects, the detection switch is in an ON state when the game board is mounted in the opening of the main body frame, and the first connector group and the second connector group are separated from each other. It is preferable that the detection switch is arranged to change to the OFF state before the general connection is canceled.

  The second connector group is preferably disposed at the end of the opening that is separated from the pivot point for attaching / detaching the gaming machine. Typically, the second connector group is located at the right end of the opening in the front view of the gaming machine. It is common to arrange. However, as described in the embodiment, the present invention is not limited to using either the left or right end portion of the game board as a rotation fulcrum, and for example, the lower end portion of the game board may be used as the rotation fulcrum.

  In addition, the detection switch is disposed at a position where the game board can come into contact with the game board while being separated from the rotation fulcrum in the game board attaching / detaching operation, while the second connector group is disposed from the position where the detection switch is arranged. It is also suitable to arrange at a position shifted in the direction of the rotation fulcrum. Typically, the game board is disposed at a position farthest from a rotation fulcrum in the mounting operation of the game board and where the game board can come into contact. In addition to the ball and ball game machines, the spinning machine is typical as the game machine of each of the above inventions.

  Since the present invention automatically performs an ON / OFF operation corresponding to the fitting state of the first connector group and the second connector group, a gaming machine that prevents power supply troubles at the time of game board replacement is realized. it can.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a perspective view showing a pachinko machine GM of the present embodiment. This pachinko machine GM includes a rectangular frame-shaped wooden outer frame 1 that is detachably mounted on an island structure, and a front frame 3 that is pivotably mounted via a hinge 2 fixed to the outer frame 1. It is configured. A game board 5 is detachably attached to the front frame 3 from the front side, not from the back side, and a glass door 6 and a front plate 7 are pivotally attached to the front side so as to be openable and closable. The portion excluding the game board 5 corresponds to the main body frame of the present invention.

  On the outer periphery of the glass door 6, an electric lamp such as an LED lamp is arranged in a substantially C shape. An upper plate 8 for storing game balls for launch is mounted on the front plate 7, and a lower plate 9 for storing game balls overflowing from or extracted from the upper plate 8 and a launch handle 10 are mounted at the bottom of the front frame 3. And are provided. The launch handle 10 is interlocked with the launch motor, and a game ball is launched by a striking rod that operates according to the rotation angle of the launch handle 10.

  A chance button 11 is provided on the outer peripheral surface of the upper plate 8. The chance button 11 is provided at a position where it can be operated with the left hand of the player, and the player can operate the chance button 11 without releasing the right hand from the firing handle 10. The chance button 11 does not function normally, but when the game state becomes the button chance state, the built-in lamp is turned on and can be operated. The button chance state is a game state provided as necessary.

  On the right side of the upper plate 8, an operation panel 12 for ball lending operation with respect to the card-type ball lending machine is provided, a frequency display unit for displaying the remaining amount of the card with a three-digit number, and a ball of game balls for a predetermined amount A ball lending switch for instructing lending and a return switch for instructing to return the card at the end of the game are provided.

  As shown in FIG. 2, the game board 5 is provided with a guide rail 13 formed of a metal outer rail and an inner rail in an annular shape, and a liquid crystal color display DISP is provided at the approximate center of the game area 5a inside. Has been placed. In addition, at a suitable place in the game area 5a, a symbol starting port 15, a big winning port 16, a plurality of normal winning ports 17 (four on the right and left sides of the big winning port 16), and a gate 18 serving as two passing ports are arranged. Has been. Each of these winning openings 15 to 18 has a detection switch inside, and can detect the passage of a game ball.

  The liquid crystal display DISP is a device that variably displays a specific symbol related to a big hit state and displays a background image and various characters in an animated manner. This liquid crystal display DISP has special symbol display portions Da to Dc in the center portion and a normal symbol display portion 19 in the upper right portion. And, in the special symbol display parts Da to Dc, a reach effect is executed that expects a big hit state to be invited, or in the special symbol display parts Da to Dc and the surroundings, a notice effect that informs the result of the success / failure is executed. Is done.

  The normal symbol display unit 19 displays a normal symbol. When a game ball that has passed through the gate 18 is detected, the normal symbol fluctuates for a predetermined time, and the lottery extracted at the time when the game ball passes through the gate 18 is extracted. The stop symbol determined by the random number for use is displayed and stopped.

  For example, the symbol start port 15 is configured to be opened and closed by an electric tulip having a pair of left and right opening and closing claws 15a. When the stop symbol after fluctuation of the normal symbol display unit 19 displays a winning symbol, it is opened and closed. The claw 15a is opened only for a predetermined time or until a predetermined number of game balls are detected.

  When a game ball wins the symbol start port 15, the display symbols of the special symbol display portions Da to Dc change for a predetermined time and are determined based on the lottery result corresponding to the winning timing of the game ball to the symbol start port 15. Stop at the stop symbol. In addition, in special symbol display parts Da-Dc and its circumference, a notice effect may be performed between a series of symbol effects.

  The big winning opening 16 is controlled to open and close by, for example, an opening / closing plate 16a that can be opened forward, but when the stop symbol after the symbol change of the special symbol display portions Da to Dc is a big hit symbol such as “777”, the “big hit game” Is started, and the opening / closing plate 16a is opened.

  After the opening / closing plate 16a of the big prize opening 16 is opened, the opening / closing plate 16a is closed when a predetermined time elapses or when a predetermined number (for example, 10) of game balls wins. In such an operation, the special game is continued up to 15 times, for example, and is controlled in a state advantageous to the player. In addition, when the stop symbol after the change of the special symbol display parts Da to Dc is a specific symbol of the special symbols, a privilege that the game after the end of the special game is in a high probability state is given.

  FIG. 3 illustrates the relationship between the game board 5 and the main body frame BY. A central opening HO is formed in the main body frame BY, and the pachinko machine GM of this embodiment is completed simply by fitting the game board 5 into the central opening HO.

  At the left end of the central opening HO, a rotation axis PR protrudes vertically inward from the upper and lower inner peripheral surfaces. In addition, a frame side connector group WC is fixed to be exchangeable at the lower part of the right end of the central opening HO. On the other hand, on the upper and lower sides of the left end surface of the game board 5, an arc groove GV that can receive the rotation axis PR is formed. A board-side connector group BC is fixed to the lower side of the right end of the game board 5 on the back side.

  The frame-side connector group WC and the panel-side connector BC constitute a female connector and a male connector of a floating connector, respectively. The floating connector is a connector that can absorb the displacement of the fitting position of the male connector and the female connector. In this embodiment, one of the connector groups, for example, the female frame side connector group WC is orthogonal. It is configured to absorb a deviation of ± 1.5 mm in the direction. As will be described later with reference to FIG. 7, the male and female connectors WC and BC are for centrally connecting the frame side member GM1 and the panel side member GM2 at one location. It is divided into CN4.

  As shown in FIG. 4A, the first detection switch SW1 is disposed at the position of the frame side connector group WC. Further, a second detection switch SW2 is disposed at a position where it can be detected that the game board 5 is mounted on the upper right portion of the central opening HO (FIGS. 4A and 4B). As shown in FIG. 5A, the detection switches SW1, SW2 are formed by projecting an elastic lever LVR made of a leaf spring material from a substantially rectangular parallelepiped body BDY.

  In the illustrated natural state, the detection switches SW1 and SW2 are in the OFF state. However, when the elastic lever LVR is pressed and approaches the main body BDY, the detection switches SW1 and SW2 change to the ON state. When the pressed state is released, the elastic lever LVR automatically returns to the original posture, and the detection switches SW1 and SW2 return to the OFF state.

  In the present embodiment, the detection switch SW2 is arranged so that the open end of the elastic lever LVR faces the rear of the central opening HO (FIG. 4B). On the other hand, the detection switch SW1 is arranged so that the open end of the elastic lever LVR is directed to the right side in the front view of the gaming machine (FIGS. 4A and 5C). This corresponds to rotating the game board 5 with the left side of the game board 5 as a fulcrum when the game board 5 is mounted, and each detection is performed when the mounting operation shown in FIG. 4B is completed. This is to turn on the switches SW1 and SW2.

  As shown in FIG. 4A, in this embodiment, the detection switch SW1 is disposed in the female connector group WC on the frame side. Accordingly, a substantially rectangular parallelepiped-shaped pressing plate PUSH is It is arranged in the male connector group BC on the panel side. However, the pressing plate PUSH is not an essential member, and the pressing plate PUSH can be omitted if the attachment position of the detection switch SW1 is set higher by the thickness of the pressing plate PUSH.

  As shown in FIG. 5B, a large number of columnar connection terminals Tm protrude from the male connector of the panel-side connector group BC. On the other hand, as shown in FIG. 5A, the female connectors of the frame side connector WC group are provided with the same number of connection holes Hf as the connection terminals Tm, and the connection terminals Tf are provided in the connection holes Hf. Has been placed.

  When the game board 5 is mounted, when the game board 5 is turned to the limit position with the left side of the game board 5 as a fulcrum, the male connector is externally fitted to the female connector, and thus connected to the connection terminal Tm. Electrical connection is realized by contact with the terminal Tf. At this time, the pressing switch PUSH disposed in the panel-side connector group BC presses the elastic lever LVR of the pressure switch SW1, so that the detection switch SW1 is turned on. In this embodiment, the positional relationship between the elastic lever LVR and the pressing plate PUSH is such that the detection switch SW1 is turned on at the final position where the frame side connector group WC and the panel side connector group BC are securely fitted. Is set.

  Further, when the gaming board 5 is mounted, the upper end surface of the gaming board 5 presses the elastic lever LVR of the detection switch SW2, so that the detection switch SW2 is also turned on (FIG. 4B).

  On the other hand, when the game board 5 is rotated toward the front of the central opening HO in order to replace the game board 5, the detection switches SW1 and SW2 are turned from the ON state to the OFF state based on the elastic force of the elastic lever LVR. To return to nature. In this embodiment, the detection switch SW1 is set so that the frame-side connector group WC is turned on at the final position where the board-side connector group BC is reliably received. The detection switch SW1 is turned off slightly before the switch SW2.

  In the illustrated example, the game board 5 is rotated while being positioned by engaging the arc groove GV of the game board 5 with the rotation axis PR protruding from the main body frame BY (FIG. 3C). This configuration is not always essential. For example, the game board 5 may be positioned and rotated by fixing small contact plates PT above and below the left end of the central opening HO (see FIG. 3D). The contact plate PT may be fixed to the rear surface instead of the front surface of the central opening HO. Furthermore, even a configuration without any positioning member can be appropriately positioned due to the floating effect of the floating connector, and such a configuration is simply adopted.

  FIG. 6 is a block diagram showing an overall circuit configuration of the pachinko machine GM of the present embodiment. A dashed line in the figure mainly indicates a DC voltage line.

  As shown in the figure, this pachinko machine GM includes a power supply board 20 that receives AC 24V and outputs various DC voltages, a system reset signal SYS, etc., a main control board 21 that plays a central role in game control operations, and a main control board. An effect control board 22 that executes a lamp effect and a sound effect based on the control command CMD received from the control board 21; a liquid crystal control board 23 that drives the liquid crystal display DISP based on the control command CMD ′ received from the effect control board 22; Based on a control command CMD "received from the main control board 21, a payout control board 24 for controlling the payout motor M to pay out the game ball, and a launch control board 25 for firing the game ball in response to the player's operation, , It is structured around.

  However, in this embodiment, the control command CMD output from the main control board 21 is transmitted to the effect control board 22 via the command relay board 26 and the effect interface board 27. Further, the control command CMD ′ output from the effect control board 22 is transmitted to the liquid crystal control board 23 via the effect interface board 27, and the control command CMD ″ output from the main control board 21 is set to the main board relay board 28. Is transmitted to the payout control board 24. The effect interface board 27 and the effect control board 22 are directly connected by a connector without using a cable.

  The main control board 21, the effect control board 22, the liquid crystal control board 23, and the payout control board 24 are each equipped with a computer circuit including a one-chip microcomputer. Accordingly, the circuits mounted on the control boards 21 to 24 and the operations realized by the circuits are collectively referred to as a function. In this specification, the main control unit 21, the effect control unit 22, and the liquid crystal control unit 23 are used. , And the payout control unit 24. All or part of the effect control unit 22, the liquid crystal control unit 23, and the payout control unit 24 is a sub-control unit.

  By the way, this pachinko machine GM is roughly divided into a frame side member GM1 surrounded by a broken line in FIG. 6 and a board side member GM2 fixed to the back of the game board 5. The frame side member GM1 includes a front frame 3 on which a glass door 6 and a front plate 7 are pivotally attached, and a wooden outer frame 1 on the outside thereof. Is fixedly installed. On the other hand, the board side member GM2 is replaced in response to the model change, and a new board side member GM2 is attached to the frame side member GM1 instead of the original board side member. All except the frame side member GM1 is the panel side member GM2.

  6, the frame-side member GM1 includes a power supply board 20, a payout control board 24, a launch control board 25, a frame relay board 32, an external terminal board 33, and a ball lending machine UT. Interface board 34, and these circuit boards are respectively fixed at appropriate positions of the front frame 3. Here, the external terminal board 33 is disposed in the upper right part of the back of the gaming machine (FIG. 3B). On the other hand, on the back of the game board 5, a main control board 21, an effect control board 22, and a liquid crystal control board 23 are fixed together with a liquid crystal display DISP and other circuit boards.

  And as shown in FIG. 3, the frame side member GM1 and the board | substrate side member GM2 are electrically connected by the connection connectors CN1-CN4 concentratedly arranged in one place. As shown in FIG. 3A, in this embodiment, the connection connectors CN1 to CN4 are centrally arranged at the lower right of the central opening HO when viewed from the front. Then, with the glass door 6 open, the left end of the game board 5 is locked to the front frame 3 from the front side of the front frame 3 to secure a rotation fulcrum, and the game board 5 is rotated around the secured rotation fulcrum. By doing so, the game board 5 is fitted inside the front frame 3 (see FIGS. 3C and 3D). When the game board 5 is fitted, all the connection connectors CN1 to CN4 are connected, and the connection between the frame side member GM1 and the board side member GM2 is completed, and the pachinko machine GM is operable. .

  As shown in FIG. 6, the power supply board 20 is connected to the main board relay board 28 through the connection connector CN2, and is connected to the power supply relay board 30 through the connection connector CN3. The main board relay board 28 outputs the system reset signal SYS, the RAM clear signal, the voltage drop signal, the backup power supply, DC12V, and DC32V received from the power board 20 to the main controller 21 as they are. Similarly, the power supply relay board 30 also outputs the system reset signal SYS received from the power supply board 20 and the AC and DC power supply voltages to the effect interface board 27 as they are. The production interface board 27 outputs the received system reset signal SYS to the production control unit 22 and the liquid crystal control unit 23 as they are.

  On the other hand, the payout control board 24 is directly connected to the power supply board 20 without going through the relay board, and receives the same system reset signal SYS, RAM clear signal, voltage drop signal, backup power supply as the main control unit 21 receives. Directly with other power supply voltages.

  Here, the system reset signal SYS output from the power supply board 20 is a signal indicating that the AC power supply 24V is supplied to the power supply board 20, and the one-chip microcomputer or other IC element of each of the control units 21 to 24 by this signal. The power is reset. The RAM clear signal received from the power supply board 20 by the main control unit 21 and the payout control unit 24 is a signal that determines whether or not to initialize all areas of the built-in RAM of the one-chip microcomputer of each control unit 21 and 24. Thus, it has a value corresponding to the ON / OFF state of the initialization switch operated by the staff.

  The voltage drop signal received from the power supply board 20 by the main control unit 21 and the payout control unit 24 is a signal indicating that the AC power supply 24V has started to drop. By receiving this voltage drop signal, each control unit 21, In 24, a necessary termination process is started prior to a power failure or business termination. The backup power source is a DC 5V DC power source that retains data in the built-in RAM of the one-chip microcomputer of the main control unit 21 and the payout control unit 24 even after the AC power source 24V is shut off due to business termination or power failure. Therefore, the main control unit 21 and the payout control unit 24 can resume the game operation before power-off after power-on (power backup function). This pachinko machine is designed to retain the stored contents of the RAM of each one-chip microcomputer for at least several days.

  On the other hand, the effect control unit 22 and the liquid crystal control unit 23 are not provided with the power supply backup function described above. However, as described above, the system reset signal SYS is commonly supplied to the effect control unit 22 and the liquid crystal control unit 23 via the power relay board 30 and the effect interface board 27, and other controls are performed. The power supply reset operation is realized at a timing substantially synchronized with the units 21 and 24.

  As shown in FIG. 6, the main control unit 21 is connected to each game component of the game board 5 via the game board relay board 29. And while receiving the switch signal of the detection switch built in each winning opening 16-18 on a game board, solenoids, such as an electric tulip, are driven. Although not shown in FIG. 2, game parts driven by solenoids are also arranged on the game board. The switch signal includes a winning switch signal transmitted from the symbol start port 15.

  The main control unit 21 outputs the control command CMD ”and 8-bit game information INF to be transmitted to the management computer (hall computer) to the payout control unit 24 via the main substrate relay board 28. Here, the payout control board 24 and the main board relay board 28 are connected by the connection connector CN1, and the payout control section 24 receives the control command CMD "received from the main control section 21 through the connection connector CN1. Based on this, a specified number of prize balls are paid out. Specifically, the required prize ball motion is realized by rotating the payout motor M.

  On the other hand, the payout control board 24 sends a prize ball counting signal indicating the payout operation of the game balls and a status signal CON related to abnormality of the payout operation via the connection connector CN1 and the main board relay board 28. Is sending to. Note that the status signal CON includes, for example, a replenishment signal, a payout shortage error signal, and a lower plate full signal.

  Further, the payout control unit 24 outputs an AC voltage AC24V and a launch control signal CTL to the launch control board 25. The launch control signal CTL is a condition for operating the launch solenoid. When the launch control signal CTL is at the L level, the launch operation of the game ball is prohibited.

  Furthermore, the payout control unit 24 outputs a prize ball signal, a door signal, and game information INF to the external terminal board 33. The game information INF is an 8-bit signal output from the main control unit 21, and a total of 10-bit data including a prize ball signal and a door signal is transmitted from the payout control board 24 to the external terminal board 33. The external terminal board 33 is connected to a management computer that centrally manages all the gaming machines in the gaming hall, and the management computer grasps the operating state of the gaming machine based on a prize ball signal received from each gaming machine. is doing.

  As shown in FIG. 3B, a total of 10-bit data including the game information INF is transmitted along with a DC voltage of +12 V in a considerable length so as to crawl the outer periphery of the game board 5. Therefore, it is relatively easy for noise to be superimposed on the + 12V power supply line and the 10-bit signal line.

  The payout control unit 24 is also connected to a ball lending machine (prepaid card unit) UT via an interface board 34, and transmits and receives various control signals (BRDY, BRQ, EXS, PRDY) related to the ball lending operation. is doing. Further, the payout control unit 24 outputs AC 24V to the interface board 34. This AC 24V is transmitted to the ball lending machine UT as it is.

  The frame relay board 32 is connected to a speaker group that realizes an audio effect and an LED group that realizes a lamp effect. A switch signal from the chance button 11 is received. The frame relay board 32 is connected to the frame relay board 31 on the game board side through the connection connector CN4, and is further connected to the effect control unit 22 via the effect interface board 27.

  The effect control unit 22 executes a sound effect and a lamp effect synchronized with each other based on the control command CMD received from the main control unit 21, and the speaker group and the LED group are substantially the effect control unit. It is driven based on the control 22. An audio signal for driving the speaker group is generated by a voice synthesis IC mounted on the effect control unit 22 and transmitted via a digital amplifier mounted on the effect interface board 27 → the frame relay board 31 → the frame relay board 32. The As illustrated, the data is transmitted from the game board side to the frame side via the connection connector CN4. On the other hand, the lamp signal for driving the LED group is transmitted via the effect control unit 22 → the effect interface board 27 → the lamp connection board when the LED group on the game board side is driven. Further, when driving the LED group on the frame side, transmission is performed via the effect control unit 22 → the effect interface board 27 → the frame relay board 31 → the frame relay board 32.

  The effect control unit 22 transmits a control command CMD ′ to the liquid crystal control unit 23 via the effect interface board 27. The control command CMD ′ is the control command CMD itself received from the main control unit 21. is there. However, the effect control unit 22 may execute the effect lottery based on the control command CMD, further subdivide the effect contents, and transmit the control command CMD ′ for specifying the effect contents. In this case, it goes without saying that the design effect on the liquid crystal display is consistent with the sound effect and the lamp effect.

  By the way, the effect interface board 27 transmits DC 32V received from the power board 20 via the power relay board 30 to the inverter board 33. The inverter circuit mounted on the inverter board generates a high-voltage AC voltage based on DC32V and supplies it to the backlight unit of the liquid crystal display DISP. The backlight unit is composed of a cold cathode ray tube, but a large liquid crystal display DISP emits light brightly and brightly to realize a powerful design effect.

  FIG. 7 is a circuit diagram showing a power supply circuit of the power supply substrate 20. The power supply circuit according to the embodiment includes an automatic opening / closing unit 40 that automatically opens and closes the power input lines PW, PW, an AC input unit 41 that receives an AC voltage of 24 V when the automatic opening / closing unit 40 is in an ON state, 41, a rectifying unit 42 that converts the AC voltage output from the pulsating current into a pulsating current, a smoothing circuit 43 that smoothes the pulsating current voltage, and stabilized power supply units 44 to 46 that receive the pulsating voltage and output various DC voltages. The power storage unit 47 that generates the backup power supply, the AC cutoff unit 48 that shuts off the AC power supply line Lac when receiving an excessive AC voltage, and the DC generation circuit 49 that rectifies the AC voltage output from the AC input unit 41. And a level monitoring unit 50 that turns on when an excessive AC voltage is received and drops the output voltage of the DC generation circuit 49, and a DC blocking unit that performs ON / OFF operation according to the output voltage level of the DC generation circuit 49. 1, and a power source monitoring circuit 52 for generating a power reset signal SYS and the voltage drop signal ABN. The power reset signal is nothing but the system reset signal SYS.

  The automatic opening / closing unit 40 includes a blow fuse Fu1 that blows one of the power input lines PW, a manual power switch SWn that is manually operated, an electromagnetic open / close switch RLY that automatically cuts both the power input lines PW and PW, and a frame side. And detection switches SW1 and SW2 (FIGS. 4 and 5) that are opened and closed corresponding to the connection / disconnection of the male and female connectors WC and BC on the panel side. The electromagnetic open / close switch RLY includes a relay coil L and an automatic open / close switch SW that is turned on when the relay coil L is energized and turned off when the energization is released.

  In this embodiment, the manual power switch SWn, the relay coil L of the electromagnetic opening / closing switch RLY, and the detection switches SW1 and SW2 constitute an upstream first circuit, and the automatic opening / closing switch SW constitutes a downstream second circuit. A circuit is configured. Further, the detection switches SW1 and SW2 themselves are arranged not on the power supply board 20 but on the main body frame BY (FIG. 4).

  As shown in the figure, the manual power switch SWn, the relay coil L, and the two detection switches SW1 and SW2 are connected in series to form a closed loop for the AC power supply of AC24V. Therefore, when all three switches SWn, SW1, and SW2 are in the ON state, an alternating current flows through the path of the fusing fuse Fu1, the manual power switch SWn, the relay coil L, the detection switch SW1, and the detection switch SW2. Then, the automatic opening / closing switch SW is turned on, and AC 24V is supplied to the AC input unit 41.

  On the other hand, if any one of the power switch SWn, the detection switch SW1, and the detection switch SW2 is in an OFF state, no current flows through the relay coil L. 24V is not supplied to the AC input unit 41.

  Here, the operation at the time of replacement of the game board 5 will be described. Originally, when the game board 5 is replaced, the manual power switch SWn is turned off in advance, but here, it is assumed that the game board 5 is mistakenly removed while the manual power switch SWn is turned on.

  As described with reference to FIG. 4, when the game board 5 is to be removed, the detection switch SW1 and the detection switch SW2 quickly return spontaneously from the ON state to the OFF state based on the elasticity of the elastic lever LVR. However, at this time, all the connectors BC and WC maintain the male-female connection.

  When either the detection switch SW1 or the detection switch SW2 is turned off, the energization of the relay coil L is interrupted. As a result, the automatic opening / closing switch SW is turned off, and the power supply to the power supply circuit is automatically performed. To be stopped. Accordingly, power supply from the power supply board 20 to the circuit boards 28, 30, and 31 is reliably stopped in a state where all male and female connector groups are connected. Thereafter, the male and female connector groups BC and WC are separated. At this time, since the current is already cut off, arc discharge or the like does not occur and there is no possibility of deteriorating the connection terminals of the connector.

  Next, the operation when a new game board 5 is mounted will be described. Here, it is assumed that the game board 5 is mounted while the manual power switch SWn is in the ON state.

  When the game board is not mounted, the detection switches SW1 and SW2 are both in the OFF state. For example, even if the manual power switch SWn is in the ON state, no current flows through the relay coil L. The power supply board 20 is in a non-powered state where no DC voltage or the like is output.

  If the game board 5 is to be mounted on the main body frame BY in this state, one of the detection switches SW1 and SW2 (normally the detection switch SW2) is turned on first. However, since the two detection switches SW1 and SW2 connected in series function in the AND logic, the non-power supply state is maintained until all the detection switches are turned on.

  As described above, in this embodiment, the detection switch SW1 and the pressure plate PUSH are turned on so that the detection switch SW1 is turned on after the male and female connector groups WC and BC are securely fitted and electrical connection is completed. The position of is set. Therefore, finally, the detection switch SW1 is turned on and energization of the relay coil is started. After a short time delay, the open / close switch SW is turned on, and the power supply board 20 starts supplying power to each circuit board. Sometimes, all the connectors CN1 to CN4 are securely connected. Therefore, there is no possibility that arc discharge or the like will occur at the start of power feeding, and the connection terminal of the connector will not deteriorate. In addition, even if contact and separation of the connector contact are repeated by a loose fitting operation, there is no possibility of damaging the electronic element.

  As described above, in this embodiment, when the plurality of detection switches SW1 and SW2 function in the AND logic and any one of them is turned off, the power supply from the power supply board 20 is automatically stopped immediately and all are turned on. The power supply from the power supply board 20 is not resumed until the state is restored. In particular, in this embodiment, the detection switch SW1 is turned on after a start of connection of the male and female connectors WC and BC, and is turned off before the separation of the male and female connectors WC and BC. If you forget to switch off SWn, no trouble will occur. Therefore, for example, a direct connection configuration without the manual power switch SWn or a normally closed contact manual power switch SWn can be employed.

  Next, other configurations of the power supply substrate 20 will be described. The AC input unit 41 includes a line filter (L1, C1 to C3, R1) for preventing noise inside the device from leaking to the outside, and an antistatic unit (Sa, VR1 to VR3) for discharging static electricity such as a game ball. It consists of and. The line filter is connected to each power supply input line PW, PW between a pair of coils L1 connected in series, a pair of capacitors C1 connecting both ends of the pair of coils L1, and between each power supply input line PW, PW and ground. Capacitors C2 and C3 and a resistor R1 connected between power input lines PW and PW.

  The antistatic unit includes a surge absorber Sa connected to a conductive plate provided in a game ball tank (not shown) for storing game balls, a varistor VR1 connected between the power input lines PW and PW, and each power source. The varistors VR2 and VR3 are connected between the input lines PW and PW and the ground. The connection point between the tank conductive plate and the surge absorber Sa is connected to the frame ground FG.

  The rectifier 42 is configured by three bridge-type full-wave rectifier circuits. That is, the diodes D1, D2, D3, and D4 constitute a first rectifier circuit, the diodes D1, D2, D5, and D6 constitute a second rectifier circuit, and the diodes D1, D2, D7, and D8 constitute a third rectifier circuit. It is configured.

  The smoothing circuit 43 includes a capacitor C4 that smoothes the pulsating current output from the first rectifier circuit, and a blow fuse Fu2 that blows the DC power supply line. The + 32V DC voltage output from the smoothing circuit 43 is supplied to the solenoids via the main control board 21 and the effect interface board 27 (FIGS. 6 and 9). When an excessive current flows through the + 32V DC power supply line, the blow fuse Fu2 is blown.

  The stabilized power supply unit 44 includes a smoothing capacitor C5 and a chopper type DC-DC converter, and outputs a DC voltage of + 12V. A + 12V DC voltage is supplied to the main control board 21, the payout control board 24, and the liquid crystal control board 23 (FIG. 9).

  The stabilized power supply unit 45 includes a smoothing capacitor C6 and a chopper type DC-DC converter, and outputs a DC voltage of + 15V. The + 15V DC voltage is supplied only to the digital amplifier mounted on the effect interface board 27 (FIG. 9). As described above, in this embodiment, since the power circuit 45 dedicated to the digital amplifier is provided, the magnitude of the current load adversely affects other circuits even if a powerful sound production with a large volume is executed. There is no. Incidentally, in the present embodiment, two digital amplifiers that receive two-channel audio signals are mounted on the effect interface board 27 to realize powerful audio effects including heavy bass.

  The stabilized power supply unit 46 includes a smoothing capacitor C6 and a chopper type DC-DC converter, and outputs a + 5V DC voltage. The + 5V DC voltage is supplied to the liquid crystal control board 23 and the effect interface board 27. The DC 5V voltage required for the main control board 21 and the payout control board 24 is generated by stepping down the DC 12V voltage received by the control boards 21 and 24 (FIG. 9).

  The power storage unit 47 includes a diode D9 and a capacitor C7. This DC voltage of +5 V serves as a backup power source for holding data in the built-in RAM of the one-chip microcomputer of the main control unit 21 and the payout control unit 24 (FIG. 9).

  The AC blocking unit 48 includes two diodes D13 and D14 connected to an AC power supply line Lac1 and Lac2 of AC 24V, a series circuit of a Zener diode ZD2 and a resistor R7 connected to a connection point of the diodes D13 and D14, a diode On the upstream side of D13 and D14, a fusing fuse Fu3 connected in series to one AC power supply line Lac1, and on the downstream side of the diodes D13 and D14, a fusing fuse Fu4 connected in series to one AC power supply line Lac1; It consists of

  The two diodes D13 and D14 are connected in series in a direction that prevents the intrusion of current so that an alternating current does not enter from the AC power supply lines Lac1 and Lac2. The Zener diode ZD2 is connected in a direction in which a breakdown current flows from the AC power supply line Lac2 on the other side toward the connection point of the diodes D13 and D14.

  The Zener diode ZD2 is normally in an OFF state, but when an excessive AC voltage (for example, AC 100V) is applied to the AC power supply lines Lac1 and Lac2, the Zener diode ZD2 enters a breakdown state. In this breakdown state, since the breakdown current of the Zener diode ZD2 flows through the path of the AC power supply line Lac2, the resistor R7, the Zener diode ZD2, the diode D13, and the AC power supply line Lac1, the fusing fuse Fu3 is blown. The resistor R7 is a protective resistor that prevents the Zener diode ZD2 and the diode D13 from being damaged.

  By the way, the AC 24V of the AC power supply lines Lac1 and Lac2 is also supplied to the ball lending machine UT via the payout control unit 24 and the interface board 34. Therefore, the possibility that an excessive AC voltage is fed back from the ball lending machine UT through this AC power supply line cannot be denied. However, even in such an abnormality, the breakdown current of the Zener diode ZD2 flows through the path of the AC power supply line Lac2, the resistor R7, the Zener diode ZD2, the diode D13, and the AC power supply line Lac1, so that the fusing fuse Fu4 is blown. Therefore, abnormal situations can be prevented.

  The fusing operation of the above-described fusing fuses Fu3 and Fu4 can be realized even if no excessive current flows from the power supply substrate 20 to the discharge control unit 24 that receives AC 24V, and in short, based on the excessive voltage of the power supply input lines PW and PW. It has great significance in that it functions instantaneously. Further, since the AC interrupting section 48 is arranged in a branch that branches off from the main current of the AC power supply line, the operating current of the blowing fuses Fu3 and Fu4 is set smaller than the operating current of the blowing fuse Fu1. The AC power line can be maintained without interrupting the main current. That is, the AC power line main stream is not interrupted even if there is an abnormal operation such as a short circuit in the launch control board 25 or the ball lending machine UT on the output side of the AC 24V, so the other control boards 21 to 24 operate normally. Can continue.

  The operation content of the AC cut-off unit 48 is as described above. When the voltage across the AC power supply lines Lac1 and Lac2 exceeds the limit value, the AC cut-off unit 48 functions to cut off the AC power supply line Lac1 on one side. On the other hand, when the voltages at both ends of the AC power supply lines Lac1 and Lac2 are normal, the diodes D13 and D14 and the Zener diode ZD2 are in the OFF state, and thus do not affect the AC power supply lines Lac1 and Lac2.

  The DC generation circuit 49 is a double-wave rectification circuit provided between two AC power supply lines Lac1 and Lac2 and the frame ground FG. Then, two diodes D10 and D11 connected in series between the two AC power supply lines Lac1 and Lac2, a current limiting resistor R4, a smoothing capacitor C9, and a load resistor in which resistors R5 and R6 are connected in series. Has been. The two diodes D10 and D11 have their anode terminals connected to the AC power supply lines Lac1 and Lac2, while the cathode terminals are commonly connected to the current limiting resistor R4 and the Zener diode ZD1. The resistor R4 is a current limiting resistor for the level monitoring unit 50, and the resistors R5 and R6 connected in series are also bias resistors for the power transistor Q2 that performs switching operation.

  Since the DC generation circuit 49 is configured as described above, the smoothing capacitor C9 is charged to a value close to the peak value of the AC voltage of the AC power supply lines Lac1 and Lac2. The voltage across the resistors R5 and R6 that function as load resistors is a smoothed DC voltage.

  The level monitoring unit 50 includes a bias circuit (R2, R3, C8) and a switching transistor Q1, and monitors whether any of the AC power supply lines Lac1 and Lac2 is at an abnormal level. Two diodes D10 and D11, a Zener diode ZD1, and bias resistors R2 and R3 are connected in series between the AC power supply lines Lac1 and Lac2 and the frame ground FG. A Zener diode ZD1 is connected in series to the connection point of the diodes D10 and D11 in the direction opposite to the diodes D10 and D11, that is, in the direction of blocking current.

  Further, a capacitor C8 is connected in parallel to both ends of the bias resistors R2 and R3 connected in series. The base terminal of the transistor Q1 is connected to a connection point between the bias resistors R2 and R3 connected in series. The collector terminal of the transistor Q1 is connected to the connection point between the current limiting resistor R4 and the smoothing capacitor C9, and the emitter terminal of the transistor Q1 is connected to the frame ground FG.

  On the other hand, the DC cut-off unit 51 includes a power transistor Q2 having a large current capacity and resistors R5 and R6 connected in parallel to the smoothing capacitor C9. The two resistors R5 and R6 are connected in series, and the connection point is connected to the base terminal of the powered transistor Q2. The resistor R6 is connected between the base terminal and the emitter terminal of the powered transistor Q2. These two resistors R5 and R6 function as a bias resistor for the powered transistor Q2. The collector terminal of the power transistor Q2 is connected to the ground, and the emitter terminal is connected to the frame ground FG.

  In a normal state, a predetermined level of DC voltage is generated across the smoothing capacitor C9 of the DC generation circuit 49. For this reason, the power transistor Q2 is turned on by receiving a sufficient positive voltage at the base terminal, and the collector terminal and the emitter terminal are brought into conduction. Therefore, the frame ground FG and the ground are also conductive.

  As shown in the equivalent circuit of FIG. 8, the collector terminal and the emitter terminal of the transistor Q2 are arranged at a position where the rectifier 42 and the smoothing circuit 43 are connected, and the smoothing is performed on the condition that the transistor Q2 is in the ON state. The circuit 43 and the stabilized power supply units 44 to 46 function.

  Here, it is assumed that the potential difference between one of the AC power supply lines Lac1 and Lac2 and the frame ground FG exceeds the breakdown voltage of the Zener diode ZD1. At the time of such an abnormality, current flows in the direction of the diode D10 or the diode D11 → the Zener diode ZD1 → the bias resistors R2 and R3, and raises the base potential of the transistor Q1. Therefore, the transistor Q1 transitions from the OFF state to the ON state, and the voltage across the smoothing capacitor C9 is suddenly dropped.

  Then, since the base potential of the power transistor Q2 also drops, the power transistor Q2 changes from the ON state to the OFF state. And power transistor Q2 will be in an open state, power supply to smoothing circuit 43 and stabilization power supply parts 44-46 will be stopped, and each circuit will be in a non-operating state.

  The configuration of the power supply circuit according to the embodiment is as described above, and in addition to the four blow fuses Fu1 to Fu4, the AC cut-off unit 48 and the DC cut-off unit 51 are characteristically provided. Therefore, even when AC 100V is accidentally applied to the AC 24V AC power supply line, damage to the IC and other electronic elements is effectively prevented. In other words, the excessive voltage of AC100V causes the transistor Q1 to be turned on via the bias resistors R2 and R3, so that the transistor Q2 is immediately turned off, the ground line is cut, and the stabilized power supply units 44 to 46 are protected. In addition, the ICs and electronic elements on each control board that are supplied with DC power are protected. Moreover, when the AC voltage returns to a normal value, the transistor Q2 also returns to the ON state, and the power supply circuit resumes normal operation.

  In this regard, the fusing fuse Fu1 cannot be spontaneously restored once it is blown. In addition, the blow fuse Fu1 does not react to the voltage level, but operates based on heat loss (amount of electric power), so it cannot react instantaneously, and the electronic element is caused by an excessive current flowing before the blow fuse Fu1 is blown. There is a possibility of breaking.

  Further, even if an excessive voltage of AC 100V is applied to the power supply line, for example, an excessive current may be prevented due to burning of some electronic elements. In such a case, the fusing fuse Fu1 may not be blown. There is also sex. In such a case, if only the fusing fuse Fu1 is present, AC100V is continuously supplied to the AC24V line of the dispensing control unit. However, in the present embodiment, since the AC cutoff unit 48 functions to cut the AC power supply line, troubles in which AC 100V is continuously supplied are prevented.

  FIG. 8A illustrates an equivalent circuit of the above-described power supply circuit, and FIG. 8B is a comparison circuit for explaining the operation of the present embodiment. In the present embodiment, an overvoltage detection mechanism A is provided on the AC voltage line on the upstream side of the bridge-type full-wave rectifier circuit 42 (FIG. 8A). As described above, the overvoltage detection mechanism A includes the DC generation circuit 49, the level monitoring unit 50, and the DC cutoff unit 51. In addition, the voltage detection mechanism B is configured by an AC cutoff unit 48.

  On the other hand, in the comparison circuit shown in FIG. 8B, an overvoltage detection mechanism is provided on the DC voltage line on the downstream side of the bridge-type full-wave rectifier circuit 42. Therefore, when an excessive voltage is supplied to the AC power supply line, an excessive current flows through the four rectifier diodes of the full-wave rectifier circuit and the two rectifier diodes for overvoltage detection in the comparison circuit. This point is irrelevant whether or not the overvoltage detection mechanism functions. Therefore, all rectifier diodes must withstand the excessive current described above.

  On the other hand, in the present embodiment, even when the blow fuse Fu1 is not blown, the overcurrent flows only to the diodes D1, D2, D10, and D11, so that it is not necessary to make the other diodes special. In this embodiment, there are a total of five systems of DC 32V, DC12V, DC15V, DC5V, and backup power supply DC5V as DC power supply lines, but it is only necessary to arrange two diodes D10 and D11 for overvoltage detection.

  FIG. 9 shows the relationship between the above-described power supply board 20 and the control boards 21 to 25 and 27 and the inverter board 33 that receive power supply from the power supply board 20. As shown in the figure, a DC voltage of +12 V is supplied to the main control board 21, the payout control board 24, and the liquid crystal control board 23. In each of the control boards 21, 23, 24, DC12V is stepped down to a predetermined voltage (for example, DC5V, 3.3V, etc.) by a stabilized power supply circuit inside the board, and used as a power supply voltage for a computer circuit including a CPU. Therefore, the power supply noise is not transmitted through the connection of the computer circuit of each control board through the DC12V power supply line. The DC 12V transmitted to the main control board 21 is also supplied to an input unit that receives a winning switch signal of the symbol start port 15, so that a large ON / OFF level of the winning switch signal can be secured.

  On the other hand, a DC voltage of +5 V is supplied from the power supply board 20 to the effect interface board 27 and the liquid crystal control board 23. Then, the liquid crystal control board 23 steps down the received DC5V to 1.5V and 2.5V by the stabilized power supply circuit inside the board, and the power supply voltage of the computer circuit including the VDP (Video Display Processor) and the one-chip microcomputer. It is said.

  Similarly, the effect interface board 27 steps down the received DC5V to 3.3V by the stabilized power supply circuit inside the board to obtain the power supply voltage of the computer circuit including the CPU, and transmits it to the effect control board 22 as it is. . As described above, the effect interface board 27 and the effect control board 22 are directly connected by a connector without accompanying a wiring cable, and can be evaluated to be substantially a single board.

  Therefore, the computer circuit of the effect control board 22 and the liquid crystal control board 23 is not coupled through the DC5V power supply line and power noise is not transmitted. In addition, since the power supply board 20 is provided with the DC blocking unit 51, even if an AC voltage of AC 100V is supplied to the power supply board 20, a DC voltage higher than the set value is supplied to the control boards 21 to 24, for example. It is never done. The + 12V DC power is also supplied to the external terminal board 33. However, since the DC blocking unit 51 is provided on the power board 20, there is a possibility that an excessive DC voltage is supplied to the external terminal board 33. Absent.

  The + 32V DC voltage is supplied from the power supply board 20 to the main control board 21 and the effect interface board 27. The DC 32V supplied to the main control board 21 is distributed to the solenoid of the game board via the game board relay board 29 and used as a power source for driving the electric chew chip and the reciprocating game parts. On the other hand, the DC 32V supplied to the effect interface board 27 is supplied to the inverter board 33 as it is. Then, it is converted into a high-voltage AC voltage by the inverter circuit and drives the backlight unit of the liquid crystal display DISP.

  Further, DC32V is also supplied to the launching solenoid for launching the game ball. This DC voltage is based on the AC24V supplied from the power supply board 20 to the launch control board 25 via the payout control board 24. Has been generated. Therefore, the electromagnetic noise of the firing solenoid is not transmitted to the main control board 21 through the power line.

  In this embodiment, since the large liquid crystal display DISP is driven brightly and brightly, the power consumption of the backlight unit is increased by that much, and the current value of the + 32V power supply line is also large. Moreover, electromagnetic noise is also superimposed on the + 32V power supply line as the solenoid is turned ON / OFF. However, the + 32V DC voltage is generated by a circuit different from the + 12V or + 5V DC voltage, and the power supply line is also a separate path, so that electromagnetic noise is not directly transmitted to other power supply lines. In particular, the power supply voltage (5V, 3.3V, 2.5V, 1.5V) of the computer circuit is generated by the stabilized power supply circuit of each circuit board as described above, and the computer circuit malfunctions. The possibility of doing is very low.

  By the way, there is a possibility that an excessive current flows through the power supply line of +32 V for some reason. However, when such an abnormality occurs, the current capacities of the two blow fuses Fu1 and Fu2 are set so that the blow fuse Fu2 installed on the power supply board 20 is blown quickly. There is no possibility that the game control operation is stopped.

  That is, for example, even if an excessive current flows due to an abnormality of the inverter board 33, the backlight of the liquid crystal display is simply turned off by the blow of the blow fuse Fu2, and the power supply of the other power supply lines (5V, 12V, 15V) is maintained. Therefore, the game control operation is maintained without any problem.

  On the other hand, when an excessive current flows in power supply lines (5V, 12V, 15V) other than the + 32V power supply line, the fusing fuse Fu1 is blown, so that the electronic elements of each control unit may be burned out. To be prevented.

  Furthermore, since the AC circuit breaker 48 is provided on the power supply board 20, if an excessive current flows through the firing control board 25 or the ball lending machine UT, the fusing fuse Fu3 is blown. Note that, even when an AC voltage of AC 100 V is supplied to the power supply board 20, the AC cutoff unit 48 functions, so that an AC voltage higher than the set value may be supplied to the launch control board 25 and the ball lending machine UT. Absent. On the other hand, as described above, even if an excessive voltage is fed back from the ball lending machine side, the fusing fuse is blown, so that the electronic elements of the power supply board 20 are not damaged.

  As mentioned above, although embodiment of this invention was described concretely, the concrete description content does not limit this invention at all, and various modifications are possible. For example, in the above description, the two detection switches SW1 and SW2 are used. However, one detection switch may be used, and conversely, three or more detection switches may be used. The specific configuration of the detection switches SW1 and SW2 can also be changed as appropriate. For example, the switch contact is exposed to the frame side, and the switch contact is short-circuited by a short-circuit piece provided on the back side of the game board. It may be. Furthermore, the arrangement position of the detection switch is not limited to the exemplified positions, and may be appropriately changed. Of course, the arrangement positions and structures of the frame-side connector group WC and the board-side connector group BC may be changed as appropriate.

  By the way, in the above-described embodiment, the male and female connector groups WC and BC are exclusively arranged at a point farthest from the rotation fulcrum in the mounting operation of the game board 5. However, conversely, the connector groups WC and BC may be arranged at a position close to the rotation fulcrum.

  FIG. 10A illustrates this embodiment, in which a frame-side connector WC is arranged at the lower part of the left end of the central opening HO. Correspondingly, a board-side connector group BC is arranged on the back side of the lower left end of the game board 5. In such an embodiment, when the game board 5 is mounted, the male and female connectors WC and BC are in a connected state at an early stage, and finally, the right end of the game board 5 is received by the main body frame BY.

  Therefore, in this embodiment, it is sufficient to arrange a single detection switch SW3 at the right end of the central opening HO (FIG. 10B). In FIG. 10B, the detection switch SW3 is arranged at the right end of the central opening HO so that the open end of the elastic lever LVR faces inward of the central opening HO. The arrangement position is not limited to the upper part or the lower part, but may be arranged anywhere on the right end of the central opening HO.

  As described above, when the connector groups WC and BC are arranged at a position close to the rotation fulcrum of the game board 5, the connector groups WC and BC are first connected when the game board 5 is attached. When the game board 5 is removed, the connector groups WC and BC are finally separated. Therefore, the arrangement position of the detection switch SW3 is not particularly limited and may be anywhere as long as it is on the right side of the connector groups WC and BC.

  On the other hand, if the detection switch SW3 is arranged at the right end of the central opening HO, the connector groups WC and BC do not necessarily need to be arranged at the left end of the central opening HO, as shown in FIG. If it is on the left side of the detection switch SW3, it can be arranged appropriately.

It is a perspective view of the pachinko machine which shows the embodiment of the present invention. It is the front view which illustrated in detail the game board of the pachinko machine of FIG. It is the schematic which shows the whole structure of the pachinko machine of FIG. It is drawing explaining the fitting state of a frame side connector and a board side connector. It is drawing explaining a male and female connector, a detection switch, and a press board. It is a block diagram which shows the whole structure of the pachinko machine of FIG. It is a circuit diagram which shows the power supply circuit of a power supply board. A part of FIG. 7 is shown by an equivalent circuit. It is the schematic which shows the power supply line which connects a power supply board and each control board. It is drawing which illustrates another arrangement position of a frame side connector and a board side connector.

Explanation of symbols

GM gaming machine 20 power supply 5 game board HO opening BY main body frame BY
BC first connector group WC second connector group SW1 detection switch SW2 detection switch L relay coil SW automatic open / close switch

Claims (9)

Based on the control commands output by the main control unit and the main control unit that is responsible for game control operations including the lottery process that is executed due to the player's operation or the winning state of the game media A sub-control unit provided with a computer circuit that executes control operations, and a power source that generates a DC voltage based on an AC input voltage received from the outside and outputs the DC voltage to each unit including the main control unit and the sub-control unit A game machine that determines whether or not to generate a gaming state advantageous to a player based on a lottery result of a lottery process executed by the main control unit,
It is divided into a game board in which various game parts are arranged on the surface side, and a main body frame having an opening for receiving the game board and a power supply part.
The first connector group that is centrally arranged at an appropriate position on the back of the game board and the second connector group that is arranged on the main body frame are fitted together so that the electrical connection between the circuit on the game board side and the circuit on the main body frame side is completed. And
On the body frame side,
A closed circuit including a detection switch that performs ON / OFF operation corresponding to the fitting state of the first connector group and the second connector group, a relay coil, and a power switch that performs ON / OFF operation based on manual operation A first circuit configured to receive an external AC input voltage;
It is configured to transmit an AC input voltage received from the outside to the main circuit of the power supply unit via an open / close switch that operates when the energizing current flows through the relay coil of the first circuit , and turns off when the energizing current stops. A second circuit is provided, and
Even if the power switch is in the ON state, the open / close switch is turned on / off depending on whether the first and second connector groups are in the fitted state, and is supplied from the power supply unit to the circuit on the game board side. A gaming machine characterized in that a direct current voltage to be turned on / off is configured.   The gaming machine according to claim 1, wherein the first circuit is configured by connecting a plurality of detection switches in series. The detection switch has an elastic piece protruding from the main body,
The gaming machine according to claim 1 or 2, wherein the detection switch is turned on when the elastic piece is pressed due to the mounting of the game board on the main body frame.   The gaming machine according to claim 1, wherein the detection switch is arranged on an inner peripheral surface of the opening of the main body frame.   The gaming machine according to any one of claims 1 to 3, wherein the detection switch is disposed in proximity to the second connector group.   The gaming machine according to claim 5, wherein when the first and second connector groups are fitted, a part of the back side of the game board presses an elastic piece of the detection switch, so that the detection switch is turned on. The detection switch is in the OFF state when the game board is not attached to the opening of the main body frame,
The detection switch changes to the ON state before the first connector group and the second connector group are completely fitted and after the electrical connection between the first connector group and the second connector group is established. The gaming machine according to any one of claims 1 to 6, wherein the gaming machine is arranged to perform. The detection switch is in the ON state when the game board is mounted in the opening of the main body frame,
The gaming machine according to any one of claims 1 to 7, wherein the detection switch is arranged to change to an OFF state before the first connector group and the second connector group are separated and the electrical connection is canceled. .   The gaming machine according to any one of claims 1 to 8, wherein the sub-control unit is disposed on the game board side except for a payout control unit that pays out game media.