JP2007229231A - Pinball game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pinball game machine capable of securely preventing entry of a foreign object onto a game board against a belligerent fraudulent act such as opening of a glass frame by force. <P>SOLUTION: A movable shielding wall member 201, energized to project toward the glass frame 4, is disposed at a side edge of a front frame 3, and the distal end of the shielding wall member 201 abuts to the rear face of the glass frame 4 closed to the front frame 3. Accordingly, even if the glass frame 4 is forced open, the shielding is retained if the range of opening is within the movable range of the shielding wall member, and therefore, the fraudulent entrance of the foreign object onto the game board 20 can be securely prevented. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a ball game machine capable of preventing unauthorized access to a game board.

  For example, a pachinko machine, which is one of the ball game machines, is provided with a plastic front frame in which a game board and a plurality of ball passages are formed in a wooden frame that is a rectangular vertically long outer frame so as to be openable and closable. A glass frame to which a transparent pair glass facing the board surface of the game board is attached is attached to the front of the front frame by a hinge so as to be opened and closed.

  In addition, the lower part of the front frame is provided with a dish unit having an upper dish part for receiving and storing prize balls, rental balls, and the like, and further, a game ball to the game board is provided at the lower right part of the dish unit. There is provided a rotary launch handle for launching.

  A pachinko machine plays a game while launching the game ball onto the game board according to the turning operation of the launching handle. A predetermined number of game balls enter the winning hole such as a chucker provided on the game board. The game balls are paid out to the dish unit as prize balls.

  By the way, goto acts such as intruding foreign matter such as wire and piano wire through a slight gap between the glass frame joined by the hinge and the front frame and hooking it on a nail near the entrance of a chucker etc. to expand the entrance ( Fraud) has been a problem for some time.

  In order to solve such a problem, for example, in Patent Document 1, an inner wall member is formed on both side edges of the front frame, and a rib along the inner wall member is provided on the back side of the glass frame, so that a gap between the frames is provided. A structure for preventing intrusion of foreign substances by eliminating the above is disclosed.

  FIG. 8 is a cross-sectional view showing a conventional anti-fraud structure in a pachinko machine. 8A, a glass frame 905 having a transparent plate 904 is attached to the front frame 902 via a hinge portion 906, and in a state where the glass frame 905 is closed to the front frame 902, the transparent plate 904 and The game board 901 faces the game board 901. A guard plate 903 is fixed to a side edge portion of the front frame 902, thereby preventing foreign matter from entering the game board 901.

JP 2002-28329 A

  However, in recent years, there has been a problem with the goto action that attempts to gain unauthorized access to the game board by opening a gap between the glass frame and the front frame using a harder means such as a bar. For example, in the conventional anti-fraud structure shown in FIG. 8, when a metal bar such as a bar B is used as shown in FIG. 8B, a frame member such as a glass frame 905 or a front frame 902 made of plastic. Is deformed, and a gap is generated between the guard plate 903 and the glass frame 905. For this reason, it has not been possible to reliably prevent unauthorized intrusion against such a strong fraud.

  The present invention has been made in view of such conventional problems, and can reliably prevent the entry of foreign objects into the game board even for hard illegal acts such as prying using a bar or the like. An object of the present invention is to provide a ball game machine equipped with a fraud prevention structure.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a front frame that supports a game board having a gauge formed on a board surface, and is pivotally supported by the front frame so as to be openable and closable. In a ball game machine comprising a glass frame to which a transparent plate that defines a game space for colliding and dropping the game ball launched on the gauge is opposed to the board surface of the game board, the glass frame is pivoted The front frame of the front frame to be supported is always urged in the direction of projecting toward the glass frame at least on the front side edge of the shaft support side or the open side, and the glass frame is closed and applied to the back side edge of the glass frame. A movable shielding wall member that is in contact is provided.

  According to the ball game machine of the first aspect, when the glass frame is closed to the front frame, the movable shielding wall member provided at the front edge of at least one of the shaft support side and the open side of the front frame is provided. It is urged toward the glass frame and comes into contact with the back side edge. Thereby, the clearance gap between a glass frame and a front frame is shielded, and the penetration | invasion of the foreign material to game space is prevented.

  Further, even if the glass frame is strongly pry open and deformed, the shielding state is maintained as long as the deformation amount is within the movable range of the shielding wall member, and foreign matter can be reliably prevented from entering the game space. .

  According to a second aspect of the present invention, there is provided a front frame that supports a game board having a gauge formed on the board surface, and a game ball that is pivotally supported by the front frame and that can be opened and closed and that is launched on the game board. A ball game machine comprising a glass frame to which a transparent plate that defines a game space to be collided and dropped against a gauge is opposed to the board surface of the game board, and at least the pivot side or the back side of the glass frame. A movable shielding wall member that is always urged in a direction protruding toward the front frame and is in contact with the front side edge of the front frame in a state in which the glass frame is closed is provided at the edge.

  According to the ball game machine according to claim 2, when the glass frame is closed to the front frame, the movable shielding wall member provided on at least one of the back side edge portions on the pivot side or the open side of the glass frame is provided. It is urged toward the front frame and comes into contact with the front edge. Thereby, the clearance gap between a glass frame and a front frame is shielded, and the penetration | invasion of the foreign material to game space is prevented.

  Further, even if the glass frame is strongly pry open and deformed, the shielding state is maintained as long as the deformation amount is within the movable range of the shielding wall member, and foreign matter can be reliably prevented from entering the game space. .

  According to the bullet ball game machine of the present invention, the movable shielding wall member shields the gap between the glass frame and the front frame while the glass frame is closed to the front frame. Even if the glass frame is pry open, the shielding state is maintained by the elastically biased shielding wall member, so that it is possible to reliably prevent an illegal act such as adjusting the gauge by inserting a wire or the like into the game board surface.

  Hereinafter, as a preferred embodiment of the present invention, a pachinko machine which is a typical example of a ball game machine will be taken and its configuration will be described with reference to the drawings. Here, FIG. 1 is a front view showing the external structure of the pachinko machine 1 according to the embodiment. FIG. 2 is a view showing the internal structure of the pachinko machine 1 in a state where the glass frame 4 and the upper ball tray unit 5 are opened, and mainly shows the front side structure of the game board 20 and the front frame 3. FIG. 3 is a perspective view of the pachinko machine 1 with the gaming board 20 removed and the glass frame 4 opened.

  The pachinko machine 1 is attached to a rectangular vertically long wooden frame 2 as an outer frame for fixing and holding the main body to the game island, and to the wooden frame 2 so as to be opened and closed by a hinge member 3a. And a front frame 3 for closing the front opening. On the front side of the front frame 3, a glass frame 4 formed of two transparent glass plates and attached with a transparent plate called a pair glass 410, and an upper ball tray unit integrally formed of hard plastic, respectively. 5 and the lower ball tray unit 7 are attached to the front frame 3 so as to be openable and closable.

  The front frame 3 is automatically locked by closing the front frame 3 to the wooden frame 2 side, and the glass frame 4 is moved to the front frame 3 side together with the upper ball tray unit 5 and the lower ball tray unit 7. A locking device (not shown) that automatically locks even when closed is provided, and a predetermined key is inserted into the key hole 6 formed in the right front portion of the front frame 3 to perform unlocking operation. Can be done.

  A glass frame opening switch 42 is provided at one position on the front surface of the front frame 3 and facing the back surface portion of the glass frame 4. In addition, a front frame opening switch 41 (see FIG. 6) is provided at one position on the back surface side of the front frame 3 and facing the front surface portion of the wooden frame 2. The glass frame opening switch 42 is turned off when the glass frame 4 is closed with respect to the front frame 3, and is turned on when the glass frame 4 is opened, thereby closing and closing the glass frame 4. Detect open state. The front frame opening switch 41 is turned off when the front frame 3 is closed with respect to the wooden frame 2 and is turned on when the front frame 3 is opened. Detects closed and open states.

  First, the front side structure of the pachinko machine 1 will be described in detail with reference to FIGS.

  On the front upper part of the glass frame 4, there is provided an effect lighting unit 4a that incorporates lamps such as high-intensity light emitting diodes. The effect lighting unit 4a also functions as a notification lamp for notifying an opening error of the glass frame 4 by light, for example.

  The upper ball tray unit 5 provided below the glass frame 4 so as to be openable and closable on the front frame 3 is formed with an upper plate portion 5a for storing and aligning paid-out game balls (prize balls and rental balls). Yes. And the ball removal lever 8 for performing operation which discharges the game ball stored in the upper plate part 5a to the lower plate part 7a of the lower ball plate unit 7 is provided in the right part of the upper plate part 5a. ing.

  On the left side of the front surface of the upper ball tray unit 5, there is provided an effect sound emitting unit 5 c including a speaker 11 for guiding the sound effect relating to the game of the pachinko machine 1 or the progress of the game by voice.

  The lower ball tray unit 7 provided below the upper ball tray unit 5 is formed with a lower plate portion 7a, and a game ball or upper ball removed from the upper ball tray unit 5 by operating the ball removal lever 8 is operated. The game balls overflowing from the dish unit 5 are discharged to the lower dish part 7a through the ball outlet 7b.

  A launching handle 9 for performing an operation of launching a game ball stored in the upper plate part 5 a toward the game board 20 is disposed on the right side of the front surface of the lower ball dish unit 7. The firing handle 9 has a turning operation portion 9a that is constantly urged counterclockwise by a built-in spring, and the player operates the turning operation portion 9a against the urging force while touching the turning operation portion 9a. When a clockwise rotation operation is performed, the ball launching device 50 is activated and a game ball is launched into the game board 20 with a striking force corresponding to the rotation angle of the rotation operation unit 9a.

  The front frame 3 includes a frame portion having substantially the same size and shape as the wooden frame 2 and a hard plastic back set board 30 in which a ball passage and a ball passage are integrally formed inside the frame portion. A game board accommodating portion 31 that opens to detachably accommodate the game board 20 is formed at the approximate center of the back set board 30 that faces 4.

  The game board 20 is attached to a plastic frame 25 having a substantially circular opening at the center so as to close the opening, and the edge of the plastic frame 25 is connected to the back side of the front frame 3 by a plurality of engagement levers 10. (See FIG. 7).

  When the glass frame 4 is closed to the front frame 3 side, the transparent pair glass 410 attached to the glass frame 4 is opposed to the board surface of the game board 20 at a predetermined interval, and these opposed pairs are arranged. A game area space in which the game ball is dropped and moved is defined by the glass 410 and the board surface.

  Here, FIG. 4 is a cross-sectional view showing the structure of the anti-fraud mechanism 200 according to the present invention formed in the portion indicated by the arrow IV in FIG.

  In the embodiment of FIG. 4, a fraud prevention mechanism 200 is provided on the front edge of the front frame 3 on the side where the glass frame 4 is hinged. The fraud prevention mechanism 200 includes a plate-shaped shielding wall member (guard plate) 201 that is constantly urged by a spring 202 in a direction protruding toward the glass frame and moves with a predetermined stroke in the front-rear direction. The shielding wall member 201 has substantially the same length as the height dimension of the game board 20, is located on the side thereof, and the wall surface is disposed orthogonal to the board surface of the game board 20.

  That is, as shown in FIG. 4A, when the glass frame 4 is opened from the front frame 3, the shielding wall member 201 of the fraud prevention mechanism 200 is biased by the spring 202 and protrudes forward. As shown in FIG. 4B, when the glass frame 4 is closed to the front frame 3 side, the tip of the shielding wall member 201 comes into contact with the fitting groove 4b formed in the rear side edge of the glass frame 4, and the spring The mating is slightly degenerated while resisting the elastic force of 202. As a result, it is possible to prevent unauthorized access by inserting a foreign object such as a wire through the gap between the glass frame 4 and the front frame 3 and entering the board surface of the game board 20.

  Moreover, you may provide a fraud prevention mechanism in the back side edge part of the glass frame 4, and the hinge coupling | bonding side like the Example shown by FIG. According to this embodiment, when the glass frame 4 is closed to the front frame 3 side, the movable shielding wall member 401 provided on the glass frame 4 side is brought into contact with the fitting groove 3b while being biased by the spring 402. To do. Further, such a fraud prevention mechanism may be provided on the open side of the front frame 3 or the glass frame 4 (the side facing the shaft support side).

  The game board 20 has a board surface formed by affixing a cell with a pattern on the surface of a laminated plywood having a predetermined thickness, and a stainless steel plate or the like on the left side (the side on which the glass frame 4 is hinged). A belt-like outer rail 71 is attached. Further, an inner rail 72 having a predetermined length is provided so as to protrude from the board surface of the game board 20 so as to sandwich the launch road surface along the outer rail 71. The board surface area further inside than the inner rail 72 is a game area for pachinko games.

  Gauges in which a plurality of nails are driven in a predetermined arrangement pattern are formed on the surface of the game board 20 defined as the game area, and the game balls launched to the game board 20 collide with the plurality of nails. However, it is configured to fall in the game area space by accidentally changing its direction.

  In addition, on the board surface of the game board 20, a chucker 21 that receives a prize when a game ball enters the prize opening, and a lottery to activate a special game state such as a jackpot by similarly entering the prize opening are started. A winning combination such as an attacker 23 and the like that are released until a game ball enters the chucker 22 and in a special game state until the game ball enters for a certain time or a certain number of times, is placed in an appropriate position. Has been placed.

  A winning ball sensor that detects a game ball that has entered a ball is attached to the winning port of the chucker 21. This winning ball sensor is formed from a proximity sensor that detects the passage of a game ball in a non-contact manner by, for example, magnetic, optical, or electrical means.

  The starter chucker 22 is a so-called electric tulip winning component, and is configured such that the probability of winning can be varied by opening and closing the left and right wing members. A winning ball sensor similar to the above-described chucker 21 (starting opening winning ball sensor) is also provided in the winning opening of the starting chucker 22, and when a ball entering the starting chucker 22 is detected, the pachinko machine 1 will be described later. For example, the main control board 60 performs a lottery to open the attacker 23 and shift to a special gaming state in which a game can be played under conditions that are more advantageous than usual, such as a jackpot (probable hit).

  Near the center of the board surface of the game board 20, there is provided a decorative member 28 that allows the liquid crystal display unit 53 to be seen through and constitutes, for example, a center accessory. The result of the above lottery is displayed by the liquid crystal display unit 53, and for example, by winning a special game state such as jackpot by directing and displaying specific symbols.

  The attacker 23 has a large winning opening consisting of a horizontal rectangular opening at the center, and an open / close door is attached to enable opening / closing of the large winning opening by a solenoid (large winning opening solenoid). In the normal gaming state, this door is closed, and when the special game state such as a big hit is established as a result of the lottery performed when entering the starting chucker 22 described above, the door is opened forward and opened. .

  In addition, when game balls drop into the big winning opening of the attacker 23, more game balls are paid out than other winning combinations. For this reason, in the special gaming state, the player can play the game with a higher winning probability than usual. There are two winning holes on the left and right inside the grand prize winning opening, and one of the winning openings forms a special area. For example, when winning a big hit, as long as the game ball falls into the winning area in this special area The special gaming state can be continued up to the maximum number of times that is scheduled. Note that each winning opening of the attacker 23 is also provided with a winning ball sensor and a specific area winning ball sensor that are similar to the chucker 21 as proximity sensors.

  In the lower part of the board surface of the game board 20, there is provided an out port 24 that collects and discharges out balls that have fallen without entering any of the winning ports.

  A game auxiliary board 20a is formed below the front frame 3 to which the game board 20 is attached, and a ball launcher 50 is provided on the right side thereof. The ball launching device 50 is a device that launches game balls stored in the upper plate portion 5 a of the upper ball tray unit 5 one by one into the game area of the game board 20 in accordance with the turning operation of the launch handle 9.

  In the ball launching device 50, the arm of the hitting hammer 502 is connected to the ball launching motor 501, and by driving the ball launching motor 501, the buttocks of the hitting hammer 502 rotate to hit and launch the game ball. .

  In addition, the game assisting board 20a includes a launch rail that launches a game ball toward the outer rail 71 in the game area in alignment with the batting hammer 502 of the ball launcher 50, a speaker 11 that produces a production effect sound, and the like. It is attached. The game assisting board 20a is located on the back side of the upper ball tray unit 5 and is covered with the upper ball tray unit 5 that is always kept closed.

  Next, the structure of the back side of the pachinko machine 1 will be described with reference to FIGS. 6 is a rear view of the pachinko machine 1, and FIG. 7 is a view showing the rear structure of the pachinko machine 1 in a state where various electronic circuit boards and cover members are removed.

  On the back side of the front frame 3, a back set board 30 to which various devices such as a prize ball payout device 52 are attached is detachably attached via an engagement lever 10. The back set board 30 is provided with a preliminary ball tank 51 in which a preliminary ball is stored, and a preliminary prize ball passage 32 for guiding the preliminary ball from the preliminary ball tank 51 to the prize ball payout device 52; A prize ball passage 33 for guiding the prize balls or rental balls paid out from the prize ball dispensing device 52 to the upper dish portion 5a of the upper ball dish unit 5 or the lower dish part 7a of the lower ball dish unit 7 and the prize entrance A ball passage such as a ball discharge passage 34 is formed for collecting the game balls and the out balls collected through the out port 24 and discharging them to a storage tank (not shown) on the lower game facility side.

  A back cover is fixed to the back side of the game board 20 at a predetermined interval, and a game ball dropped into each winning opening is a ball set formed between the back side of the game board 20 and the back cover. Fall through the fence. Then, the game ball dropped from the back side of the game board 20 and the out ball discharged from the out port 24 merge, and these game-completed balls are stored through the ball discharge passage 34 formed in the back set board 30. It is configured to be collected into a ball tank.

  As shown in FIG. 7, the back set board 30 attached to the front frame 3 by the upper and lower hinge members 36 so as to be openable and closable is always closed and held on the back side of the game board 20 via the closing lever 37.

  The preliminary prize ball passage 32 formed in the upper part of the back set board 30 is connected to the preliminary ball tank 51 and has an inclined flange part 321 which gently slopes downward toward the prize ball payout device 52 side, and S which is bent in a substantially S shape. It is roughly divided into a character rail portion 322.

  A rib-shaped partition wall is provided at the center of the bottom surface of the inclined flange 321 along the direction in which the game balls flow down, thereby forming two rows of ball passages. Further, the ball leveling member protrudes into the inclined flange portion 321 and is suspended so as to be rotatable along the flow-down direction of the game ball. With this configuration, the game balls (preliminary prize balls) that flow down from the bottom surface of the inclined saddle member 321 at a certain height or more are leveled almost uniformly by moving while colliding with the ball leveling member, and the rib-shaped partition walls Aligned in two rows and efficiently transferred to the S-shaped rail portion 322. The S-shaped rail portion 322 is formed from a ball passage that is bent in two stages while facing downward, thereby relieving the heavy pressure applied to the prize ball payout device 52 by the game balls stacked in the preliminary prize ball passage 32 and waiting. is doing.

  In the vicinity of the end of the inclined flange 321, a ball stop mechanism 38 that manually closes the ball passage as necessary to stop the flow of the preliminary prize ball, and a preliminary prize ball to be paid out by the prize ball payout device 52. Is mounted on a ball break switch 39 for detecting whether or not is sufficiently held in the S-shaped rail portion 322. In addition, on the upper part of the ball break switch 39, a pseudo ball presence state creation mechanism 40 that artificially creates a ball presence state in the S-shaped rail portion 322 is provided.

  Further, in the vicinity of the end of the inclined flange portion 321, a ball removal gate for forcibly discharging a preliminary prize ball waiting on the upstream side of the S-shaped rail portion 322 to the outside of the pachinko machine 1 through the ball removal passage 35. 43 is formed so that rotation is possible. That is, when the ball removal operation lever 44 is tilted backward, the ball removal gate 43 opens in conjunction with this, and the preliminary prize ball in the inclined flange 321 is guided to the ball removal passage 35 side.

  A prize ball payout device 52 is attached to the S-shaped rail portion 322 of the preliminary prize ball passage 32. The prize ball payout device 52 is connected to the end of the S-shaped rail portion 322 at the upper center and receives a preliminary prize ball, and the payout outlet for paying out the prize balls and the rental balls to the left and right of the lower part respectively. And a two-stage impeller in the front and rear, a ball payout motor for rotating these impellers, and the like. Then, the ball payout motor is operated in accordance with a payout command signal output from the payout control board 62 under a predetermined condition, and the impeller is rotated clockwise or counterclockwise, so that a number of game balls (awards) based on the payout command signal are obtained. A ball or a rental ball) from the right or left payout exit to the prize ball passage 33. The left and right payout outlets are provided with count sensors, and the payout game balls are detected by the count sensors.

  The prize ball passage 33 has an upper ball tray passage portion 331 that communicates with the upper plate portion 5a of the upper ball tray unit 5 and a lower ball tray passage portion 332 that communicates with the lower plate portion 7a of the lower ball tray unit 7. Has been. Both passage portions are substantially divided by a partition wall 333 provided so as to close the substantially lower half of the prize ball passage 33, and communicate with each other above the partition wall 333 and connect to a payout opening of the prize ball payout device 52. is doing.

  That is, an upper ball tray passage port 334 that is an inlet of the upper ball tray passage portion 331 is formed at an upstream position adjacent to the partition wall 333 so that a game ball paid out from the prize ball payout device 52 is It enters from the upper ball tray passage port 334, falls on the upper ball tray passage portion 331, and is paid out to the upper plate portion 5 a of the upper ball tray unit 5.

  On the other hand, in the vicinity of the entrance of the lower ball tray passage portion 332, a linear detour groove 335 slightly inclined to the lower left at the upper position of the partition wall 333 is formed on the wall surface of the back set board 30 and the other side of the prize ball passage 33. Openings are formed in cover members (not shown) that form the wall surfaces. That is, when the game balls stored in the upper ball tray unit 5 are full and the game balls are filled up to the upper end of the partition wall 333, the game balls newly paid out from the prize ball payout device 52 are blocked by the partition wall 333. The game ball that has been filled up is overcome and overflows into the lower ball tray passage portion 332, and efficiently flows down to the lower ball tray passage portion 332 through the bypass groove 335 above the partition wall 333.

  In addition, the ball bucket 336 provided in the lower part of the game auxiliary | assistant board 20a is connected to the exit of the lower ball tray channel | path part 332. Further, the lower front portion of the ball bucket 336 communicates with the ball outlet 7b of the lower plate portion 7a. As a result, the winning ball flowing down the lower ball tray passage 332 and reaching the ball bucket 336 is discharged to the lower plate portion 7a of the lower ball tray unit 7 through the ball outlet 7b on the front surface.

  Further, the opening at the front upper portion of the ball bucket 336 is connected to a ball collecting passage (not shown) formed between the game auxiliary board 20a and the lower ball tray unit 7. The ball collecting passage is connected to the ball outlet of the upper plate portion 5a of the upper ball tray unit 5, and when the ball release lever 8 is operated, the ball outlet is opened and stored in the upper plate portion 5a. The game ball is formed so as to be discharged from the ball outlet through the ball collecting passage and the ball bucket 336 to the lower plate part 7 a of the lower ball plate unit 7.

  Further, the ball collecting passage communicates with a foul ball collecting passage for collecting the foul balls and other ball collecting passages for collecting the spilled balls, and the game balls collected by these ball collecting passages also pass through the ball bucket 336 to the lower ball dish. The unit 7 is discharged to the lower plate part 7a.

  The ball discharge passage 34 has a bent portion formed in multiple stages, and the upper end of the ball discharge passage 34 is formed on a back cover provided on the back side of the game board 20 in a state where the back set board 30 is closed to the front frame 3. It is connected to the end of the ball assembly cage and the out port 24. As a result, the game balls that have entered the respective winning holes and collected in the ball assembly cage and the out balls that have entered the out port 24 are received by the ball discharge passage 34 and collide with the bent portions, thereby reducing the speed. While falling, it falls to the ball discharge port 341 that opens at the end.

  Then, the already played game balls discharged from the ball discharge port 341 are collected into the storage tank through a duct (bellows) on the game island side (not shown).

  An integral cover member (not shown) is attached to the back side of the back set board 30 so as to block the preliminary prize ball passage 32, the prize ball passage 33, the ball discharge passage 34, the ball removal passage 35, etc. A back wall of the ball passage is formed.

  As shown in FIG. 6, on the back set board 30, the main control board 60 that comprehensively controls the operation of the pachinko machine 1, the speaker 11, the light emitting diode, and the like are driven to perform effect control by sound and light. A sub-control board 61, a payout control board 62 that controls payout of prize balls and rental balls, a launch control board 67 that functions as a control board for the ball launcher 50 and the launch handle 9, a power supply board 63, and a plurality of power supply boards 63 In order to output the operating state of the pachinko machine 1 or gaming machine information to the central management device of the hall (game store), for example, a hall computer. The external terminal board 65 and the image control board 66 for controlling the image display by the liquid crystal display unit 53 are attached, and these various devices and electronic circuit boards are wired. It is electrically connected by harness or the like.

  Next, operations of various devices controlled by a control board provided in the pachinko machine 1 will be described.

  The main control board 60 is equipped with a CPU as an arithmetic unit and electronic components such as a ROM and a RAM, which are semiconductor memories, and the CPU performs a winning combination and effects lottery according to a system program stored in the ROM in advance. A pachinko game is developed by executing arithmetic processing. In addition, each control board such as a sub control board 61, a payout control board 62, and a game board relay board 64 is connected to the main control board 60 by a wire harness, and a command signal is transmitted to these control boards to control each control board. The overall control of the pachinko machine 1 is controlled by causing the substrate to perform distributed control.

  Here, the sub control board 61 performs control for displaying an image such as a pattern on the liquid crystal display unit 53 via the image control board 66 in accordance with an effect control signal from the main control board 60, and an effect sound effect for the speaker 9. And the control of turning on and blinking lamps such as the lighting unit for effect 4a.

  The image control board 66 includes a ROM for storing compressed image data, and a video signal processing circuit (VDP: Video Display Processor) having a frame memory, a video RAM, or the like. Control for displaying various effect images based on the command signal of the substrate 60 is performed.

  In addition, winning ball sensors provided in the chucker 21, the starter chucker 22 and the like are connected to the main control board 60 via the game board relay board 64, and when the CPU of the main control board 60 detects these operations, A command signal indicating that a predetermined number of prize balls should be paid out is sent to the payout control board 62. Further, when the main control board 60 detects the operation of the start opening winning ball sensor of the start chucker 22, the main control board 60 activates the hardware lottery circuit and draws a winning combination. At this time, the main control board 60 sends an effect control signal to the sub-control board 61 so that the liquid crystal display unit 53 provided on the decoration member 28 displays a plurality of symbols in a variable manner, or the effect sound emitting section 5c. An effect that raises the expectation of winning is performed by generating a sound effect related to winning on the speaker 11 or lighting or blinking the lighting unit for effect 4a.

  When a winning combination such as a jackpot is won, the main control board 60 shifts the processing of the game to a special game state, controls the game board relay board 64 and operates the big prize opening solenoid, and the attacker 23 under certain requirements. Open the door. As a result, in the special game state, it is possible to enter the attacker 23, and the main control board 60 detects that the winning ball sensor provided in the attacker 23 or the specific area winning ball sensor detects entering the winning opening. Each time, a command signal indicating that a predetermined number of prize balls should be paid out is sent to the payout control board 62.

  The payout control board 62 is connected with a ball payout motor of the prize ball payout device 52 and a count sensor. When the payout control board 62 receives a command signal indicating that a predetermined number of prize balls should be paid out from the main control board 60, the payout control board 62 operates the ball payout motor of the prize ball payout device 52 to actually pay out the prize balls. A predetermined number of award balls are paid out while the count sensor counts.

  Further, the payout control board 62 inputs a ball break detection signal from the ball break switch 39 provided in the spare ball tank 51 via the external terminal board 65, and the ball breaks in the spare ball tank 51 and the spare prize ball passage 32. When the state continues for a predetermined time or more, the control of the prize ball payout device 52 is stopped.

  Further, a lower pan full tank switch is connected to the payout control board 62, and when the lower pan full tank switch detects that the game ball held in the lower pan portion 7a of the lower base plate unit 7 is full, Even if the launch handle 9 is operated, the launch control board 67 regulates the operation of the ball launcher 50. Thereby, when the lower ball tray unit 7 is full, the game is interrupted to prevent the newly-paid prize balls and the like from overflowing from the lower plate portion 7a.

  The firing control board 67 is a control board that controls the operation of the ball launching device 50 in accordance with the operation of the launching handle 9, and includes a touch sensor, a potentiometer, a stop switch, and the ball launching device 50 built in the launching handle 9. The ball launch motor 501 and the like are connected.

  The touch sensor provided in the firing handle 9 is formed of, for example, a capacitance type sensor, and sends a detection signal (ON signal) to the firing control board while the player or the like touches the rotation operation unit 9a of the firing handle 9. To 67. The electric resistance of the potentiometer changes depending on the rotation angle at which the rotation operation unit 9a is rotated. For this reason, for example, by supplying a constant current to the potentiometer, the firing control board 67 can obtain a voltage signal corresponding to the rotation operation amount of the firing handle 9. The stop switch is a push-type switch provided on the firing handle 9 in order to stop the launch of the game ball.

  While the player or the like touches the launch handle 9 and the touch sensor detects the launch control board 67, the launch control board 67 has a torque corresponding to the turning angle of the turning operation unit 9a detected by the potentiometer. The ball firing motor 501 is operated. Thereby, a game ball is launched to the game board 20 with a striking force corresponding to the amount of rotation of the launch handle 9.

  In addition, when the firing control board 67 detects the operation of the stop switch of the firing handle 9, the firing control board 67 regulates the operation of the ball firing motor 501 even if a player or the like touches the firing handle 9 during that time. The launch control board 67 also regulates the operation of the ball launcher 50 even when the lower tray full switch connected to the payout control board 62 detects a full state of the game ball held in the lower dish portion 7a. Interrupt the game.

  The external terminal board 65 is connected to a hall computer such as a hall computer with a wiring cable, and mainly functions as an output terminal board for notifying the hall computer of the operating state of the pachinko machine 1 and the like.

  The main control board 60 and the payout control board 62 described above are connected to the external terminal board 65, and the current gaming machine information in the pachinko machine 1 is, for example, jackpot (special game) state, prize ball from these control boards Information such as the operating state of the payout device 52 (whether or not a game ball is being paid out) is acquired and output to the hall computer described above for notification.

  According to the pachinko machine 1 configured as described above, the above-described fraud prevention mechanism 200 related to the present invention is provided, and the operation thereof will be described below.

  The shielding wall member (guard plate) 201 of the fraud prevention mechanism 200 is always urged by the spring 202 and protrudes forward as shown in FIG. 4A when the glass frame 4 is in an open state. When the glass frame 4 is closed, the tip of the shielding wall member 201 comes into contact with the fitting groove 4b on the back surface of the glass frame 4 and is slightly retracted to fit. As a result, it is possible to prevent unauthorized access by inserting a foreign object such as a wire through the gap between the glass frame 4 and the front frame 3 and entering the board surface of the game board 20.

  Furthermore, even if the glass frame 4 and the front frame 3 are pry open using a bar or the like, if the amount of deformation of the frame member is within the movable range of the shielding wall member 201, the tip of the shielding wall member 201 However, no gap is generated while fitting in the fitting groove 4b. Therefore, it is possible to reliably prevent the entry of foreign matter into the game board 20 in which the game area is formed even for such a hard fraud.

It is a front view showing the appearance structure of the pachinko machine by one embodiment of the present invention. It is a figure showing an internal structure in the state which opened the glass frame and upper ball tray unit of the pachinko machine shown in FIG. It is a perspective view in the state where the game board of the pachinko machine shown in FIG. 1 was removed and the glass frame was opened. It is a cross-sectional view showing the structure of the anti-fraud mechanism shown in FIG. It is a cross-sectional view showing the structure of a fraud prevention mechanism according to another embodiment. It is a rear view of the pachinko machine shown in FIG. It is a rear view in the state which removed various electronic circuit boards etc. of the pachinko machine shown in FIG. It is a cross-sectional view showing the structure of a fraud prevention mechanism according to a conventional example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pachinko machine 2 ... Wooden frame 3 ... Front frame 3a ... Hinge member 3b ... Fitting groove 4 ... Glass frame 4a ... Illumination part 4b ... Fitting groove 5 ... Upper ball tray unit 5a ... Upper plate part 5c ... Production Sound emitting part 6 ... Keyhole 7 ... Lower ball tray unit 7a ... Lower plate part 7b ... Ball outlet 8 ... Ball release lever 9 ... Launching handle 9a ... Rotating operation part 10 ... engaging lever 11 ... Speaker 20 ... Game board 20a ... Game auxiliary board 21 ... Chucker 22 ... Starter chucker 23 ... Attacker 24 ... Out port 25 ... Plastic frame 28 ... Decoration member 30 ... Back set board 31 ... Game board housing part 32 ... Preliminary prize ball path 33 ... Prize ball path 34 ... Ball discharge passage 35 ... Ball removal passage 36 ... Hinge member 37 ... Closing lever 38 ... Ball stop mechanism 39 ... Ball break switch 40 ... State creation mechanism with pseudo ball 41 ... Front frame opening switch 42 ... Glass frame opening switch 43 ... Ball removal 44 ... Ball ejecting lever 50 ... Ball launching device 51 ... Spare ball tank 52 ... Prize ball dispensing device 53 ... Liquid crystal display unit 60 ... Main control board 61 ... Sub control board 62 ... Discharge control board 63 ... Power supply device board 64 ... Game board relay board 65 ... External terminal board 66 ... Image control board 67 ... Launch control board 71 ... Outer rail 72 ... Inner rail 200 ... Tamper prevention mechanism 201 ... Shielding wall member 202 ... Spring 321 ... Inclined collar 322 ... S-shaped Rail part 331 ... Upper ball dish path part 332 ... Lower ball dish path part 333 ... Partition wall 334 ... Upper ball dish path port 335 ... Detour groove 336 ... Ball bucket 341 ... Ball discharge port 401 ... Shielding wall member 402 ... Spring 410 ... Pair glass 501 ... Ball launch motor 502 ... Blow hammer

Claims (2)

A front frame that supports a game board having a gauge formed on the board surface, and a game space that is pivotally supported by the front frame and that can be opened and closed and that causes a game ball launched on the game board to collide and drop onto the gauge. In a ball game machine equipped with a glass frame to which a transparent plate defined to face the board surface of the game board is attached,
At least the front edge of the front frame that pivotally supports the glass frame or the front edge of the open side is always urged in a direction protruding toward the glass frame, and the glass frame is closed with the glass frame closed. A bullet ball game machine comprising a movable shielding wall member that comes into contact with a rear edge. A front frame that supports a game board having a gauge formed on the board surface, and a game space that is pivotally supported by the front frame and that can be opened and closed and that causes a game ball launched on the game board to collide and drop onto the gauge. In a ball game machine equipped with a glass frame to which a transparent plate defined to face the board surface of the game board is attached,
Movable that is constantly urged in a direction protruding toward the front frame at least on the back support edge or the open side edge of the glass frame and abuts on the front edge of the front frame with the glass frame closed. A ball game machine comprising a shielding wall member.

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