JP2005348920A - Game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a game machine which can improve the workability in the inspection of the game control circuit boards while preventing the fraudulent attempt against the game control circuit boards. <P>SOLUTION: In the sealed position, not at the notched part 221, an anti-release protrusion 230 is located being covered with a cylindrical part of a turning seal member 220 . A turning tearing member 222 positioned near the carved seal of '1' is torn to let the turning seal member 220 turn and the turning seal member 220 is turned so that the notched part 221 moves to be positioned to enable the insertion of the anti-release protrusion 230 thereinto, hence made ready to unseal for the removal of the box-like body 190 and a cover body 210. In a fraudulent attempt against the main board 151, the turning tearing part 222 must be torn without leaving the tearing mark. Thus, it is impossible to release the fastening between the box-like body 190 and the cover body 210 simply, thereby blocking the fraudulence. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a gaming machine provided with a board storage box for storing a circuit board.

  As the gaming machines, there are a ball game machine, a slot machine, and the like that perform a game using a game medium, generate a specific gaming state when a predetermined display result is obtained by variably displaying identification information. The specific game state means a state advantageous for a player who is given a predetermined game value. Specifically, for example, a state in which a predetermined game value is given such as a state in which a right to be advantageous to the player has occurred, a state in which conditions for paying out premium game media are easily established, and the like State.

  Such a gaming machine is provided with many circuit boards. In particular, a microcomputer (for example, peripheral circuits such as a CPU, a ROM, a RAM, and an I / O port unit) is mounted on a game control circuit board that controls the progress of the game. In many cases, different game contents can be realized by exchanging the ROM storing the program for controlling the progress of the game of the microcomputer.

For this reason, the game control circuit board is usually provided in a sealed state in the circuit board box to prevent unauthorized actions such as ROM replacement. Many circuit board boxes are composed of a transparent synthetic resin box-like main body that supports the game control circuit board and a transparent synthetic resin cover body that covers the game control circuit board. Yes. In such a circuit board box, the box-shaped main body and the cover body are fixed by screwing with a one-way screw that can rotate only in one direction to the mounting portion provided on both the box-shaped main body and the cover body, As long as the attachment portion is not cut, the state in which the box-shaped main body and the cover body cannot be released can be released, and a game control circuit board that prevents fraud is proposed (for example, see Patent Document 1).
JP 2002-35374 A (page 7-11, FIG. 6)

  However, in the circuit board box described above, since a separate member such as a screw is used to fix the box-shaped main body and the cover body, there is a risk that the screw may be lost and a tool is used when fixing the screw or the like. In other words, since the box-shaped main body and the cover body are fixed by the mounting part itself screwed in with screws, the mounting part is required to have strength, and when the fixing part is released, there is another need to cut the mounting part. Tools etc. were necessary. Further, since the cutting part is formed integrally with the box-shaped main body and the cover body, when all the cutting parts are cut, the box-shaped main body and the cover body cannot be reused. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gaming machine that can prevent fraud with respect to the game control circuit board and improve workability when inspecting the game control circuit board. There is to do.

  In order to achieve the above object, according to the first aspect of the present invention, a gaming machine (for example, a ball game) including a circuit board storage box (for example, main board box 150) for storing a circuit board (for example, main board 151). In the machine 1), the board housing box includes a main body (for example, a box-shaped main body 190) on which the circuit board is supported and a lid (for example, a cover body 210) that covers at least the circuit board supported by the main body. And a bottomed cylindrical rotary sealing member (for example, the rotary sealing member 220) that can be rotated only in one direction on the outer surface of either the main body or the lid body. Is provided in an unremovable manner with the open side facing the outer surface, and when the main body and the lid are combined on the other outer surface, an opening prevention protrusion ( example , An opening prevention protrusion 230), and when the main body and the lid body are combined on the outer surface of either the main body or the lid body, the opening prevention protrusion 230) is rotated to a position outside the cylindrical portion of the rotary seal member. A movement prevention protrusion (for example, rotation prevention protrusion 231) is provided, and the rotation sealing member has an outer periphery between notches (for example, notches 221) provided at a plurality of locations on the outer periphery and the plurality of notches. And a plurality of artificially excisable rotational excision parts (for example, rotational excision part 222) that protrude outward from the base, and the opening prevention protrusion can be inserted when the main body and the lid are combined. In a state where the notch is at a position where it can be inserted (for example, the state shown in FIG. 9A), the opening prevention protrusion is inserted into the notch and positioned inside the cylindrical portion of the rotary seal member. After that, the opening preventive protrusion of the rotating sealing member is notched. It is not sealed and the lid can be removed with respect to the main body by turning to a position covered by the cylindrical part and making the opening prevention projection into a non-insertable position where the notch cannot be inserted. For example, the state shown in FIG. 9C) and after the rotational cutting portion is excised (for example, after the state shown in FIG. 9D), the rotational sealing member is rotated to The notch portion can be set as the insertion-possible position, and an openable state (for example, a state shown in FIG. 9E) in which the lid body can be removed from the main body can be obtained.

  According to a second aspect of the present invention, a reverse rotation prevention member (for example, the reverse rotation prevention cylinder member 224) in which a plurality of reverse rotation prevention claws are provided around either the inside of the rotation sealing member or the outside of the substrate storage box. ) And an engagement hook member (for example, a reverse rotation prevention hook 223) that engages with any of the plurality of reverse rotation prevention claws (for example, the reverse rotation prevention protrusion 225) on the other side. The rotation in one direction (for example, counterclockwise) is performed without the engagement hook member and the reverse rotation preventing claw being engaged, and the rotation is in the opposite direction (for example, clockwise) to the one direction. Is prevented by the engagement between the engagement hook member and the reverse rotation prevention pawl, and the engagement hook member and the reverse rotation prevention pawl are engaged when the notch is in the insertion position. (For example, FIG. 9 ( ), The rotation-preventing hook 223 and the reverse-rotation preventing protrusion 225 are engaged with each other, whereby the rotation sealing member is stopped in a state where the notch is in the insertion position. .

  According to a third aspect of the present invention, the rotation prevention protrusion is provided on one of the main body or the lid body provided with the opening prevention protrusion (for example, the opening prevention protrusion 230 and the rotation prevention protrusion 231 are provided). It protrudes from the cover body 210).

  According to a fourth aspect of the present invention, the rotating seal member is provided on the main body (for example, a rotating shaft portion 228 is formed projectingly on the box-shaped main body 190, and an engaging hook portion of the rotating shaft portion 228 is formed. 229a and the engaged portion 227 of the rotary seal member 220 are engaged to attach the rotary seal member 220 to the box-shaped main body 190).

  In the invention according to claim 1, the bottomed cylindrical rotary sealing member that can be rotated only in one direction on the outer surface of either the main body or the lid is in a state in which the open side of the cylindrical portion faces the outer surface When the main body and the lid are combined, the cylindrical portion of the rotary seal member is inserted into the cutout portion with the cutout portion in the insertion position where the release prevention projection can be inserted. The rotation sealing member is rotated to a position where the opening prevention protrusion is covered by the cylindrical portion that is not the notch, and the opening prevention protrusion is made into a non-insertable position where the notch cannot be inserted. After the lid is removed from the main body so that it cannot be removed, and the rotary excision part is excised, the rotary sealing member is rotated to bring the next notch into an insertable position. Circuit board to allow the body to be removed and opened In order to carry out fraudulent acts, the rotary excision part must be excised, and when the rotary excision part is excised, the trace remains, so it is not easy to release the fixed state between the main body and the lid It is not possible to suppress fraud, and when fraud is performed, it becomes easy to find the fraud. In addition, since the rotational cutting part is provided separately from the main body and the lid body, the main body and the lid body can be reused by exchanging the rotational sealing member even when all the rotational notch parts are excised. . Furthermore, after the rotational cutting part is excised, the rotational sealing member is rotated to be in the sealed state, so there is no need for a tool or the like when changing from the openable state to the sealed state. Since the lid body is not fixed to the main part at the part that is cut off or cut and destroyed when changing from the sealed state to the openable state, it becomes possible to make the part to be cut relatively fragile, and the openable state Therefore, a design that does not require a tool or the like is possible, so that workability is further improved.

  Further, in the invention according to claim 2, the rotation sealing member is rotated in one direction without the engagement hook member and the reverse rotation preventing claw being engaged, and in the reverse direction opposite to the one direction. Is prevented by the engagement of the engagement hook member and the reverse rotation prevention claw, and the engagement hook member and the reverse rotation prevention claw are engaged when the notch is at the insertion-possible position. Because the rotation sealing member is stopped in a state where the notch is in the insertion-possible position, it is possible to prevent the sealing state from being intentionally prevented when the opening state is enabled, and the workability in the opening state is possible. Will improve.

  In the invention according to claim 3, since the rotation prevention protrusion is provided on one side provided with the opening prevention protrusion, the opening prevention protrusion and the rotation prevention protrusion can be integrally formed, and the molding becomes easy. In addition, since the opening prevention protrusion and the rotation prevention protrusion are located relatively close to each other, the positional relationship between the opening prevention protrusion, the rotation prevention protrusion, and the rotation cutting portion during the operation of the rotation sealing member can be easily achieved. It can be grasped and workability is improved.

  Further, in the invention according to claim 4, in general, the main body on which the circuit board is supported is configured to be thicker in the depth direction than the lid to accommodate the board on which various ICs are mounted. Even if the sealing member is provided, it is not necessary to increase the thickness in accordance with the size of the rotating sealing member in order to attach the rotating sealing member. Therefore, the substrate box can be molded without increasing the thickness of the entire substrate box by providing the main body with the rotary sealing member.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. First, an overall configuration of a bullet ball gaming machine 1 which is an example of a gaming machine will be described. FIG. 1 is a front view of the ball game machine 1 as seen from the front. Note that, here, a ball game machine is shown as an example of the game machine, but the present invention is not limited to the ball game machine, for example, an image type game machine, a coin game machine, a slot machine, and the like. Also good.

  The bullet ball gaming machine 1 includes an outer frame 2 formed in a vertically long rectangular shape and a game frame attached to the inside of the outer frame 2 so as to be opened and closed. Further, the bullet ball gaming machine 1 has a glass door frame 5 formed in a frame shape provided in the game frame so as to be opened and closed. The game frame includes a front frame 4 that is installed to be openable and closable with respect to the outer frame 2, a mechanism plate 100 to which mechanical parts and the like are attached, and various parts (except for a game board 9 described later) attached thereto. Is a structure including

  As shown in FIG. 1, the ball game machine 1 has a glass door frame 5 formed in a frame shape. On the lower surface of the glass door frame 5 is a hitting ball supply tray (upper plate) 6. Below the hit ball supply tray 6, there are provided an extra ball receiving tray 7 for storing game balls that cannot be accommodated in the hit ball supply tray 6, and a hit ball operation handle (operation knob) 8 for firing the hit ball. A game board 9 is detachably attached to the back surface of the glass door frame 5. The game board 9 is a structure including a plate-like body constituting the game board 9 and various components attached to the plate-like body. In addition, a game area 10 is formed on the front surface of the game board 9 in which a game ball that has been driven can flow down.

  Near the center of the game area 10, a plurality of types of identification information (for example, special symbols 12a to 12c), each of which can be identified based on the establishment of a predetermined start condition (for example, a hitting ball enters the start winning opening 14). A variable display device 11 that performs variable display and derives and displays a display result is provided. In the present embodiment, the variable display device 11 is configured by a liquid crystal display device (LCD), and a display unit 12 that variably displays special symbols 12a to 12c is provided at the center thereof. In the display unit 12, identification information (for example, special symbols 12a to 12c) is displayed and controlled in three display areas of left, middle, and right.

  Note that the ball game machine 1 according to the present embodiment is a jackpot determination random number that is updated (counted up) at a predetermined period when the game control microcomputer starts a winning prize (for example, when a ball hits the starting prize opening 14). A random number for jackpot determination is extracted from the counter, and specified to the display unit 12 based on the fact that it is determined that it matches the jackpot determination value when the variable display 21 starts variable display of the special symbols 12a to 12c. After displaying the display result (big hit symbol), it has a function of controlling to a big hit gaming state as a specific gaming state advantageous to the player.

  On the upper and left sides of the display unit 12, a hold as a hold storage means for storing the extraction order of the random numbers for jackpot determination extracted when the start condition is satisfied (the hit ball wins the start winning opening 14) in an identifiable manner. Special symbol hold memory that displays the number of stored big hit determination random numbers (pending storage number) stored in a storage buffer (for example, a function for storing a big hit determination random number or the like by the RAM 55 mounted on the main board 151). A display 13 is provided. This special symbol hold memory display 13 is constituted by four LEDs and has an effective start prize (in this embodiment, a start prize when the number of numerical data stored in the hold memory buffer is less than 4). The LED is turned on every time, and the LED that is turned on is reduced by 1 every time variable display of the special symbols 12a to 12c is started.

  In this embodiment, the special symbol storage memory display 13 for displaying the number of numerical data stored in the storage buffer (the number of storage) is provided separately from the display unit 12. It is good also as a structure which provides the special symbol reservation memory | storage display area which displays the memory | storage number (holding memory count) of the numerical data memorize | stored in the storage memory buffer in the part 12. FIG. In this case, by providing the display unit 12 and the special symbol hold storage display area separately, the numerical values stored in the hold storage buffer in the special symbol hold storage display area even during variable display of the special symbols 12a to 12c. The number of stored data (the number of stored storage) can be displayed. In addition, a hold memory display area may be provided in a part of the display unit 12. In this case, during variable display, the number of numerical data stored in the hold memory buffer (the number of hold memories) is displayed. Just stop.

  Below the variable display device 11, a variable winning device 15 having a start winning port 14 through which a game ball can be won is provided. The winning ball that has entered the start winning opening 14 is guided to the back of the game board 9 and detected by the start opening switch 62. The variable winning device 15 is opened by a solenoid 66. When the variable winning device 15 is opened by the solenoid 66, it becomes easy for the game ball to win the start winning opening 14 (easy to start winning), which is advantageous to the player.

  Below the variable winning device 15, a special variable winning device 20 that is opened by a solenoid 67 in a specific gaming state (big winning gaming state) based on the specific display result (big winning symbol) being derived and displayed on the display unit 12. Is provided. The special variable prize-winning device 20 is a means that includes a big prize opening inside and opens and closes the big prize opening. Of the winning balls led from the special variable winning device 20 to the back of the game board 9, the winning ball that has entered one (V winning area) is detected by the V winning switch 64 and enters the other (10 count winning area). The winning ball is detected by the count switch 63. On the back of the game board 9, a solenoid 68 for switching the route in the special winning opening is also provided.

  On the right side of the special variable winning device 20, there is provided a normal symbol display 16 composed of a pair of LEDs marked with “O” and “X”. The normal symbol display 16 can variably display a plurality of types of identification information called normal symbols (for example, “◯” and “x”).

  When a game ball passes through the gate 28 and is detected by the gate switch 61, a random number for normal symbol determination is extracted from a counter updated at a predetermined cycle and stored in a normal symbol buffer of the RAM 55 mounted on the main board 151. . In this embodiment, the upper limit of the number of random numbers for determination per normal symbol that can be stored in the normal symbol buffer of the RAM 55 is four. If the number of random numbers for determination per normal symbol stored in the normal symbol buffer has not reached the upper limit, that is, the number of random numbers for determination per normal symbol stored in the normal symbol buffer has reached four. Otherwise, a random number for normal symbol determination is extracted. If the normal symbol display 16 can start the variable display in which the normal symbol display state changes ("◯" and "x" are alternately lit), the normal symbol display 16 can display the normal symbol variably. Is started. If the normal symbol display 16 is not in a state in which variable display in which the display state changes can be started, the number of stored random numbers for determination per normal symbol is increased by 1 by storing the random numbers for determination per normal symbol in the normal symbol buffer.

  Further, on the left side of the special variable winning device 20, there is provided a normal symbol holding storage display 17 having a predetermined number (four in this embodiment) of LEDs for displaying the number of random numbers for determination per normal symbol. ing. The normal symbol hold memory display 17 increases the number of LEDs that are turned on each time a game ball passes through the gate 28 and is detected by the gate switch 61. Each time the variable display of the normal symbols (for example, “◯” and “X”) is started on the normal symbol display 16, the number of LEDs that are lit is reduced by one. The special symbols 12a to 12c and the normal symbols can be configured to be variably displayed on the single display unit 12. In this case, the special symbol display area for variably displaying the special symbols 12a to 12c and the normal symbol display area for variably displaying the normal symbols are realized by one display unit 12.

  In this embodiment, on the normal symbol display 16, the upper and lower lamps marked with ○ and X (the symbols can be visually recognized when lit) are alternately lit, so that the normal symbol is variably displayed. The variable display continues for a predetermined time (for example, 29.2 seconds). Then, if the left lamp marked with ○ is turned on at the end of the variable display, it is a win. Whether or not to win is determined by whether or not the random number for normal symbol extraction extracted when the game ball passes through the gate 28 and the game ball is detected by the gate switch 61 matches the predetermined normal symbol determination value. It is determined by whether or not. If the display result of the variable display on the normal symbol display 16 is a win, the variable winning device 15 is opened for a predetermined number of times for a predetermined time, so that the game ball is likely to win the start winning opening 14. That is, the state of the variable winning device 15 changes from an unfavorable state (blocked state) to an advantageous state (open state) when the stop symbol of the normal symbol is a winning symbol.

  A decorative lamp 25 blinkingly displayed during the game is provided around the left and right of the game area 10 of the game board 9, and an out port 26 into which a hit ball that has not won a prize is taken in at the bottom. In addition, two speakers 27 that utter sound effects and sounds as predetermined sound outputs are provided on the left and right upper portions outside the game area 10. A top frame lamp 40, a frame lamp left 41, and a frame lamp right 42 provided on the front frame 4 are provided on the outer peripheral upper portion, the outer peripheral left portion, and the outer peripheral right portion of the game area 10. In addition, a prize ball lamp 51 that is turned on when there is a remaining number of prize balls is provided in the vicinity of the frame lamp left 41, and a ball break lamp 52 that is turned on when the supply ball is cut is provided in the vicinity of the frame lamp right 42. It has been.

  In addition, the ball game machine 1 is provided with a ball hitting device 87 that drives a driving motor by operating the hitting operation handle 8 and uses the rotational force of the driving motor to launch a game ball into the game area 10. (See FIG. 2). A game ball launched from the ball striking device 87 enters the game area 10 through a ball striking rail mounted in a circular shape so as to surround the game area 10 on the game board 9 and then descends the game area 10. . When the hit ball enters the start winning opening 14 and is detected by the start opening switch 62, if the variable symbols of the special symbols 12a to 12c can be started (for example, the end of the big hit game or the end of the previous variable display), the display unit 12, variable display (variable display) of special symbols 12 a to 12 c is started. If variable display of special symbols 12a-12c cannot be started, the number of numerical data stored in the reserved memory buffer (for example, random numbers for jackpot determination) is increased by 1, and the special symbol reserved memory display 13 is turned on. Add one more LED.

  The variable display of the special symbols 12a to 12c on the display unit 12 stops when a certain time has elapsed. When the special symbols 12a to 12c at the time of stop become a big hit symbol (specific display result), the game shifts to a big hit gaming state. In other words, the special prize winning device 20 is opened by the special variable prize winning device 20 until a predetermined time elapses or until a predetermined number (for example, ten) of hit balls wins the big prize winning opening. It should be noted that one round in the big hit gaming state is that until a certain period of time elapses after the special prize winning device 20 is opened and closed or until a predetermined number (for example, ten) of hit balls wins the big prize opening. It is. When the special variable prize winning device 20 opens the big prize opening, the hit ball enters the V winning area in the big prize winning opening, and when it is detected by the V prize winning switch 64, a continuation right is generated and the special variable prize winning device 20 generates a large amount. The prize opening is reopened. The generation of the continuation right is allowed a predetermined number of times (for example, 15 rounds).

In addition, the specific game state according to the present invention is not limited to the above, and may be a state in which any one of the following controls 1 to 5 or a combination of controls is executed.
1. A variable winning device that can change between a first state that facilitates winning of a hit ball and a second state in which the hit ball cannot win or that is difficult to win, is changed to the first state continuously or intermittently for a predetermined time. 1. Control to A variable winning device that can change between a first state that makes it easy to win a hit ball and a second state that makes it difficult or difficult to win a ball, with the detection of a hit ball in a specific winning or passing area. 2. Control for setting to the first state continuously or intermittently for a predetermined time. 3. Control to discharge a predetermined number of prize balls directly regardless of the winning of the hit ball. 4. Control for adding a valuable number to a storage medium (card, receipt, etc.) having a valuable value Control for assigning points to a ball game machine that can be played based on the presence of a score Next, a configuration provided on the back of the ball game machine 1 will be described with reference to FIG. On the back of the ball game machine 1, a mechanism plate 100 equipped with various mechanisms for paying out a predetermined number of prize balls based on the occurrence of winning balls is provided, and corresponds to the hitting ball operation handle 8 described above. A hitting ball launching device 87 that launches a game ball to the game area 10 by using the rotational force of the drive motor is fixed to the back surface, and the ball hitting device 87 flows down from the surplus ball passage of the mechanism plate 100 to the side. A connecting rod 93 that guides the balls that have come to the surplus ball tray 7 is fixed. Among the configurations described above, the hitting ball launcher 87 is provided with the launch control board 90 accommodated in the launch control board box 89, and the hitting ball launcher 87 is driven and controlled by the launch control board 90. ing.

  The mechanism plate 100 includes a storage tank 105 that stores balls, a ball alignment rail member 108 and a curve rail member 111 that guide the prize balls stored in the storage tank 105 while aligning them downstream, and a curve rail member 111. The ball path 114 for guiding the balls from the ball, the ball payout device 116 for paying out the winning ball based on the winning, and the processing mechanism for processing the hitting ball including the winning ball mainly driven into the game board 9 are provided. A ball break information switch 107 is provided on the upper upstream side of the ball alignment rail member 108. This out-of-ball information switch 107 is connected to an information terminal board 132, which will be described later, and outputs a out-of-ball signal to a management computer installed in the game hall when there is a shortage of balls in the storage tank 105. .

  Further, a ball leveling swinging member 109 is suspended from the upper part of the ball alignment rail member 108 so as to be swingable about a support shaft, and the ball that flows down on the ball alignment rail member 108 in two upper and lower stages. Is made one stage by the action of a weight (not shown) embedded in the ball leveling rocking member 109.

  An information terminal board 132 having an external connection terminal to which a signal line with the outside is connected is provided on the upper part on the downstream side of the ball alignment rail member 108. On the information terminal board 132, a signal line between the terminal (not shown) to which the above-described ball break information switch 107 is connected, the outside (for example, a management computer installed in the game hall), and the ball game machine 1 is provided. Ball connection information output connector (no code), ball lending information output connector (no code), payout prize ball number information output connector (no code), which are external connection terminals to be connected, and wiring from the payout control board 36 are connected. A terminal (not indicated) and a terminal (not indicated) to which wiring from the main board 151 is connected are configured, and an external connection terminal (not indicated) provided on the information terminal board 132 is connected to the outside (for example, a game hall). Out of ball information, ball rental information, and winning ball information indicating that there is a shortage of balls in the storage tank 105.

  Note that the input signal from the ball break information switch 107 connected to the information terminal board 132 is not input to the payout control board 36, and is directly sent from one connector of the external connection terminals to the external as ball break information. Output to the management computer. Further, the information terminal board 132 has an external connection terminal (not shown) composed of three connectors for outputting the payout prize ball number information, the ball piece information, and the ball lending information, and wiring (payout) from the main board 151. A connector for connecting a prize ball number information signal (not shown), a connector for connecting a wiring from the payout control board 36 (one receiving a ball rental information signal) (no code), and a ball A connector (without reference numeral) for connecting the wiring from the break information switch 107 (receiving the ball break information) is mounted.

  Further, the power cord 135 passes from an opening (not shown) formed below the information terminal board 132 to a lower part of the mechanism plate 100 along a wiring processing groove (not shown) formed on the back side of the mechanism plate main body 101. Then, it is pulled out from the opening to the front side of the mechanism plate main body 101 and connected to a power connector (not shown). Further, the voltage supplied by the power cord 135 is a voltage of AC 24 V, and a plurality of voltages are generated by the power unit board 137.

  Further, a ball passage member is provided on the downstream side of the curve rail member 111 in a vertical shape. Specifically, a ball passage member is constituted by two rows of ball passages 114 on the left and right sides, and in each of the two rows of ball passages 114, a ball break switch 115 is provided so as to face the passage. As shown in FIG. 3, the ball break switch 115 is connected to the main board 151, and when the ball break switch 115 no longer detects a ball, the ball dispensing device 116 is stopped and the ball dispensing is disabled. It is supposed to make it. The ball dispensing device 116 is housed in a case having a substantially rectangular parallelepiped shape and is detachably attached to the front side of the mechanism plate main body 101. The main board 151 outputs a prize ball prohibition signal to the payout control board 36 based on the input signal from the ball break switch 115, or the ball to the payout control board 36 based on the input signal from the ball cut switch 115. A loan prohibition signal is output.

  In addition, when the ball break switch 115 is turned on, the payout control board 36 is controlled based on a command from the main board 151 so that the driving of a motor (not shown) is stopped and a ball lending operation or a winning ball operation cannot be performed. To do. However, when a signal from the ball break switch 115 is input during the ball lending operation or the winning ball operation, control is performed so that the next payout operation is not performed after the payout operation is completed.

  A ball breakage detection lever (not shown) for detecting the presence or absence of a ball flowing down the ball alignment rail member 108 is pivotally supported on the downstream side of the ball alignment rail member 108 so as to be swingable. This ball break detection lever is provided with a micro switch type ball break switch 115 on the back side of the mechanism plate main body 101, and if there is a ball flowing down the ball alignment rail member 108, While the cut switch 115 is held in the OFF state, when there is no ball flowing down the ball alignment rail member 108 due to clogging or ball breakage, the ball cut detection lever jumps up and holds the ball cut switch 115 in the ON state. . The ON / OFF signal of the ball break switch 115 is input to the main board 151. Further, the ball switch 115 is not limited to the micro switch type, and other types of switches such as a proximity switch and a photo switch may be used. For example, a passing hole through which a prize ball passes is opposed to the ball alignment rail member 108. If a proximity switch or a flat proximity switch attached to the back surface of the ball alignment rail member 108 is used, a member such as a ball break detection lever becomes unnecessary, and the structure of the detection unit can be simplified.

  Further, a payout control board box 143 for housing the payout control board 36 for controlling the operation of the above-described ball payout device 116 is attached to the lower right side of the mechanism plate 100, and a power switch 172 (FIG. Control of the operation of gaming devices such as the variable display device 11 and the special variable prize-winning device 20 provided on the game board 9 and the power supply unit box 136 that accommodates the power supply unit board 137 that generates a plurality of power supplies having different voltages. A main board box 150 for housing the main board 151 is attached in a superimposed manner. On the front side of the lower component part of the mechanism plate 100 to which the payout control board box 143 is attached (the inner side facing the game board 9 of the mechanism plate main body 101), a driving ball discharge passage (not shown) for guiding the driving ball. Are formed on the rear side (outside of the mechanism plate main body 101) of the lower component of the mechanism plate 100, a prize ball passage (not shown), a communication passage (not shown), a surplus ball passage (not shown), and a beading Each of the downstream portions of the passages (not shown) is formed, and the above-mentioned payout control board box 143 is formed on the further rear side of the downstream portions of the prize ball passage, the communication passage, the surplus ball passage and the ball removal passage. It is attached to an attachment rib (not shown) as an attachment part of the box 143. The power supply unit board (power generation board) 137 generates five types of voltages of DC30V, DC21V, DC12V, DC5V, and AC24V, and supplies predetermined power to each control board.

  Further, the above-described full tank switch 129 is provided on the left side of the payout control board box 143. When a lot of prize balls based on winning a prize are paid out and the hitting ball supply tray 6 is filled with the prize balls, and the prize balls continue to be paid out, the prize balls are guided to the surplus ball passage through the communication passage, and the surplus balls It is discharged to the tray 7. When the award ball continues to be paid out, the surplus ball receiving tray 7 is also full, but when it reaches a full tank detection lever (not shown) provided on one side wall of the surplus ball passage, the full tank is detected. When the lever is pressed, the full switch 129 is turned ON, the driving of the ball dispensing device 116 is stopped to disable the award and rental ball dispensing operations, and the ball hitting device 87 is driven as necessary. Is also stopped. The full tank detection lever is pivotably supported with its upper end pivoted, and the full tank switch 129 actuator is positioned behind the full tank detection lever to detect the swing operation of the full tank detection lever. To do.

  Further, the back surface of the variable display device 11 is provided so as to protrude from the back surface of the game board 9 installed at the center of the back surface of the ball game machine 1. A display control board 75 is attached to the back surface of the variable display device 11 so as to be covered with a display control board cover 74. The display control board 75 drives and controls the variable display operation of the variable display device 11 according to the type of information signal from the main board 151.

  Further, a cover body 70 is attached around the back surface of the variable display device 11 described above, and a winning ball guiding cover body 71 is attached to the lower portion thereof so as to communicate with the cover body 70. A window hole 72 through which the back surface of the variable display device 11 passes is formed in the center of the cover body 70, and a mounting hole 153 drilled in the outer peripheral portion of the window hole 72 is screwed to the back surface of the game board 9. Can be attached.

  The gaming area 10 of the game board 9 is provided with a number of electrical components such as switches, solenoids, lamps and LEDs as described above, and these are connected to the main board 151 and the lamp driver board 80. It is like that. That is, as shown in FIG. 3, each switch 61-65, 115, 129 and each solenoid 66-68 provided in the game board 9 are connected to the main board 151, and the decoration lamp 25, glass provided in the game board 9 are provided. The frame lamps 40 to 42 provided on the door frame 5, the special symbol reservation storage indicator 13, and the normal symbol reservation storage indicator 17 are connected to the lamp driver board 80.

  A board relay board 76 and an information terminal board 78 are attached to one side rear face of the cover body 70, and a board relay board 77 is attached to one side rear face of the winning ball guiding cover body 71. The board relay board 76 attached to the cover body 70 and the board relay board 77 attached to the winning ball guiding cover body 71 are switches, lamps, solenoids, LEDs, etc. provided in the game area 10 of the game board 9 as described above. The information terminal board 78 attached to the cover body 70 is used for relaying the connection between the electrical component and the main board 151 or the lamp driver board 80. Game information necessary for business management of the ball game machine 1 (for example, One jackpot information that informs you that you are in a big hit gaming state, and two jackpot information that informs you that you are in a big hit gaming state with a probability variation symbol and that the jackpot state and the probability variation due to that jackpot are in progress (during the big hit and during the probability variation) A signal that continues to be output), probability variation information that indicates that the probability variation after the end of the big hit state by the probability variation symbol is in progress, Starting port information for reporting the number of hitting balls 62 turned on, symbol determination number 1 information for notifying the number of variable operations of the variable display device 11, symbol determination number 2 information for notifying the number of variable operations of the normal symbol display 16, And an accessory connection number 2 information for notifying the number of times the variable winning device 15 is opened and closed) is output to a management computer installed in the game hall, and the game information is stored on the main board. 151 is given. Furthermore, information such as which symbol has been a big hit and which symbol has been stopped may be output.

  The information terminal board 78 may be attached to the mechanism board 100 instead of the back surface of the game board 9. For example, the information terminal board 132 and the information terminal board 78 as the terminal board for the frame information and the information terminal board 132 as the frame information terminal board may be arranged on the rear upper part of the mechanism board 100. It is desirable that they be provided apart so as not to miswire. By arranging the information terminal groups in one place in this way, there is an advantage that maintenance is easy and confirmation of each connection is easy. The mounting position and arrangement order of the board relay board 76 and the information terminal board 78 are not particularly limited as shown in the figure, but the position that is easily visible from the back of the gaming machine is excellent in workability. There is an advantage that it is easy to detect even if it is illegally modified. Further, the board relay board 76 and the information terminal board 78 may be provided with symbols or information indicating functions on the respective boards in order to prevent erroneous wiring to each terminal (connector).

  A control board box 79 that houses the lamp driver board 80 and the audio output board 82 is attached to the rear side of the winning ball guiding cover body 71. As shown in FIG. 3, the lamp driver board 80 is provided in a game area 10 of the game board 9 (not necessarily provided in the game area 10, but may be provided in the game board 9). The LEDs and the lamps / LEDs provided on the front frame 4 and the glass door frame 5 are collectively controlled in accordance with information signals from the main board 151. The audio output board 82 drives and controls the speaker 27, and generates sound effects corresponding to game contents in accordance with information signals from the main board 151. Further, the sound output board 82 is provided with a sound changeover switch 83 for switching the sound volume.

  The configuration of the ball game machine 1 has been described above. Next, a circuit configuration connected by wiring will be described with reference to FIG.

  FIG. 3 is a block diagram showing an outline of the circuit configuration of the ball game machine 1 according to the present embodiment. A basic circuit 53 for controlling the ball game machine 1 according to a program is mounted on the main board 151. The basic circuit 53 transmits a control signal to a ROM 54 that stores a game control program, a RAM 55 that is used as a work memory, a CPU 243 that controls game signals in accordance with the program, a display control board 75, and the like. An I / O port unit 57 is included. In this embodiment, the ROM 54 and RAM 55 are built in the CPU 243. That is, the CPU 243 is a one-chip microcomputer. Note that since the CPU 243 executes control according to a program stored in the ROM 54, what the CPU 243 executes (or performs processing) hereinafter specifically means that the CPU 243 executes control according to the program. is there. The same applies to CPUs mounted on substrates other than the main substrate 151. The game control microcomputer used in this embodiment is a peripheral circuit such as a CPU 243, ROM 54, RAM 55, I / O port 57, etc. mounted on the main board 151.

  Also, a switch circuit 32 for supplying signals from the gate switch 61, the start port switch 62, the count switch 63, the V winning switch 64, the clear switch 65, the ball break switch 115, and the full tank switch 129 to the basic circuit 53, a variable winning device. A solenoid 66 that opens and closes 15, a solenoid 67 that opens and closes the special variable prize-winning device 20, a solenoid 73 that moves a seesaw provided in the big prize opening, etc., according to a command from the basic circuit 53, a solenoid circuit 33 when the power is turned on A system reset circuit (not shown) for resetting the basic circuit 53, and an information output signal such as a big hit information indicating the occurrence of a big hit gaming state in accordance with data supplied from the basic circuit 53 to an external device such as a hall computer. In order to output the game information to the information terminal board 78 Information output circuit 34 to force, is also mounted on the main board 151.

  The game control microcomputer (peripheral circuits such as the CPU 243 and the ROM 54 and RAM 55) provided on the main board 151 is provided on the card unit 50 and the game board 9 that allow ball lending by inserting a prepaid card or the like. A payout control signal is transmitted to a payout control board 36 that controls a ball payout device 116 that pays out a winning ball when a winning of a game ball is detected at a plurality of winning holes. Further, the game control microcomputer transmits a launch control signal to the launch control board 90 that controls the launch of the hitting ball launcher 87 by operating the hitting operation handle 8 and controls the launch of the game ball toward the game area 10. .

  Further, the game control microcomputer transmits an effect control command (effect control signal) to the display control board 75. A display control microcomputer (display control CPU (not shown), RAM (not shown), ROM (not shown), ROM (not shown)), I / O port unit (not shown) provided on the display control board 75 by receiving the effect control command. No.) and the like (peripheral circuits) control display of the display unit 12.

  The display control CPU operates in accordance with a program stored in the ROM, and when receiving an effect control command from the main board 151, performs display control of the display unit 12 according to the received effect control command. Specifically, display control of the variable display unit is performed by a VDP (not shown) having a display control function for performing image display and a high-speed drawing function. The display control CPU reads necessary data from a character ROM (not shown) in accordance with the received effect control command. The character ROM stores character image data that is frequently used among images displayed on the display unit 12, specifically, a person, a monster, a character, a figure, a symbol, or the like.

  Then, the display control CPU outputs the data read from the character ROM to the VDP. The VDP operates based on the data input from the display control CPU. In this embodiment, a VDP (not shown) that performs display control of the display unit 12 is mounted on the display control board 75. The VDP has a two-dimensional address space independent of the display control CPU, and a VRAM (not shown) is mapped there.

  The VDP generates image data to be displayed on the display unit 12 according to the character image data, and the VDP is developed in the VRAM. VRAM is a frame buffer memory for expanding image data generated by VDP. And it outputs to the display part 12.

  In this embodiment, the display control microcomputer provided on the display control board 75 outputs the drive signal of the speaker 27 to the audio output board 82 to control the audio output of the speaker 27, and the lamp driver board 80. The lamp / LED drive signal is output to the ball-ball game machine 1 to control the light emission of the lamp / LED. That is, the display control microcomputer mounted on the display control board 75 serves as command information related to the display control of the display unit 12, the lamp / LED lighting control, and the control of effects such as the generation of game sounds transmitted from the main board 151. This is an effect control microcomputer that controls the light emitters such as lamps and LEDs provided in the display unit 12, the speaker 27, and the ball and ball game machine 1 based on the effect control command (control signal).

  Next, the detailed structure of the main board box 150 constituting the main part of the present embodiment will be described. FIG. 4 is a perspective view showing an attached state of the power supply unit box 136 and the main board box 150 that are attached to the left side portion when viewed from the back of the lower component part of the mechanism plate 100.

  As shown in FIG. 4, the main board box 150 is attached to a conductive mounting base 250, and an engaging piece 255 formed on the bottom surface of the mounting base 250 is inserted into the horizontal projection plate 160 described above. 162 and the insertion groove 166 of the L-shaped projecting plate 165 can be easily engaged.

  The mounting base 250 is formed in a substantially rectangular shape by a substantially rectangular conductive metal plate (or conductive synthetic resin), and its periphery is bent to form reinforcing pieces 251 to 254. Engagement holes 257 into which engagement protrusions 205 protruding from the left and right of the box-shaped main body 190 are inserted are formed above and below the vertical reinforcing pieces 252 and 254 in the drawing. In addition, the substantially central portion of the other reinforcing piece 254 is a locking piece portion 258 that extends outward without being bent, and the locking piece portion 258 includes a locking member 258 (not shown). A locking hole 259 for locking the locking claw of the locking lever is formed. In order to reinforce the locking piece portion 258, a bead processing portion 260 is formed above and below the locking piece portion 258. Note that only the reinforcing piece 251 on the upper side is bent outward, and when the mounting base 250 is attached to the horizontal protruding plate 160 of the mechanism plate 100, the reinforcing piece 251 becomes the upper side portion of the horizontal protruding plate 160. It comes to contact with.

  Further, engagement pieces 255 are punched and formed at four locations on the top, bottom, left, and right of the mounting base 250, and elastic contact pieces 261 are punched and formed on the bottom left bottom surface and the top right bottom surface of the mounting base 250. For this reason, punching openings 256 and 262 (see FIG. 5) are formed on the bottom surface where the engagement piece 255 and the elastic contact piece 261 are formed. The engagement piece 255 is inserted into the insertion groove 162 formed in the horizontal projection plate 160 and the insertion groove 166 formed in the L-shaped projection plate 165, and the mounting base of the control board box 79 described above. The engaging piece (not shown) (not shown) and the insertion groove (not shown) of the winning ball guiding cover body 71 can be locked by the same action. By the way, the position where the elastic contact piece 261 is formed is the position where the lower end of the conductive screw for fixing the main board 151 to the box-shaped main body 190 comes into contact when the main board box 150 is attached to the mounting base 250. It has become. The elastic contact pieces 261 are each formed to have an upward slope toward the end of the mounting base 250.

  In order to mount the main board box 150 on the mounting base 250 configured as described above, the left side of the main board box 150 is obliquely downward and comes into contact with the mounting base 250, and then is slid in the left direction in the drawing to engage. The protrusion 205 is inserted into the engagement hole 257. At this time, the lower left portion of the main board box 150 pushes the lower left elastic contact piece 261 downward, and the elastic contact piece 261 has an upward slope with respect to the sliding direction. There is no hindrance to the insertion work into the joint hole 257. After the engagement protrusion 205 is inserted into the engagement hole 257, the right side of the main board box 150 is brought into contact with the mounting base 250, and then the main board box 150 is slid to the right side to bring the engagement protrusion 205 into the engagement hole 257. At the same time, the locking lever 206 of the locking lever 206 is engaged with the locking hole 259. As a result, the main board box 150 can be completely attached to the mounting base 250. Even when the main board box 150 is slid in the right direction, the upper right elastic contact piece 261 has an upward slope with respect to the sliding direction, so that the engagement protrusion 205 and the engagement hole 257 are engaged. The operation of engaging the locking lever 206 of the locking lever 206 with the locking hole 259 is not hindered.

  In the state where the main board box 150 is attached to the mounting base 250 as described above, the tip contact surface of the conductive screw 242 contacts the elastic contact piece 261 of the mounting base 250 formed of a conductive metal plate. It has become a state. Since the conductive screw 242 is in contact with the ground line of the main board 151, the noise that has entered the main board 151 is discharged to the outside through the conductive screw 242, the elastic contact piece 261, and the mechanism plate 100. be able to. For this reason, conventionally, since the main board box has been made transparent, it has become a board box that is difficult to use conductive members and is vulnerable to noise. However, if configured as in the present embodiment, it can sufficiently cope with noise. Is. In addition, the ground structure can be realized simply by mounting the main board box 150 on the mounting base 250 as compared with the conventional board box in which the ground wire is connected.

  When removing the main board box 150 from the mounting base 250, the entire lever is slid leftward while pressing the locking lever 206 toward the inside of the main board box 150, and the engagement protrusion 205 on the right side of the figure is engaged. The engagement with the engagement hole 257 is released, and the right side of the main board box 150 is lifted and slid to the right to release the engagement between the engagement protrusion 205 on the left side of the drawing and the engagement hole 257, thereby The main board box 150 can be easily removed from the mounting base 250. Further, the mounting of the main board box 150 to the mounting base 250 can be performed even when the mounting base 250 remains attached to the mechanism plate 100.

  Further, the region where the power supply unit box 136 is attached is formed in a concave shape toward the front side. In other words, the transparent side wall plate 178 constituting the side wall of the mounting space of the power supply unit box 136 is slightly deeper to the front side than the mechanism plate 100 of the lower right component part shown in FIG. 4 (position approaching the game board 9). Mounting bosses having a pair of mounting holes 175 are formed on the upper left and right sides of the transparent side wall plate 178, and a pair of engaging holes 167 are formed on the lower left and right sides of the transparent side wall plate 178. The engagement holes 167 are formed at the corners of the L-shaped projecting plate 165 projecting from the transparent side wall plate 178 at a right angle toward the back surface. An insertion groove 166 for detachably mounting a lower portion of a mounting base 250 for mounting the main board box 150 is formed at the tip of the L-shaped protruding plate 165. The insertion groove 166 will be described in detail later. A reinforcing rib 177 is provided on the rear surface of the transparent side wall plate 178 in a rectangular shape to reinforce the mounting space.

  Thus, in order to attach the power supply unit box 136 to the mounting space configured as described above, the power supply unit box 136 is inserted into the engagement holes 167 after protruding the engaging protrusions 173 projecting on both lower sides of the power supply unit box 136, and The mounting can be easily performed by fixing the screws 176 so that the mounting holes of the mounting pieces 174 projecting on both upper sides of the box 136 correspond to the mounting holes 175 described above. In this case, since the power unit box 136 is attached to the front side (side closer to the game board 9) than the mechanism plate 100 of the lower right component, the amount of projection of the power unit box 136 to the back side Can be suppressed. In particular, since the power supply unit board 137 is mounted with a heat sink or a large capacitor having a height (thickness) compared to other control boards, the power supply unit box 136 that houses the power supply unit board 137 is also thick. Even if the power supply unit box 136 having such a thickness is attached, the protruding amount on the back side can be suppressed. On the back side of the power supply unit box 136, a main board box 150 that houses a main board 151 that controls the game operation is detachably attached. As shown in FIG. 4, the attachment is made to attach to a laterally projecting plate 160 that is bridged over the lower side of the opening window 102 of the mechanism plate 100 slightly above.

  Next, the main board box 150 will be described with reference to FIGS. FIG. 5 is an exploded perspective view of the main board box 150, FIG. 6 is a front view of the main board box 150, and FIG. 7 is a diagram for explaining the engagement between the box-shaped main body 190 and the cover body 210. It is sectional drawing.

  The main board box 150 is configured by assembling a plurality of covering members. As the plurality of covering members, a box as a main body that covers the back surface of the main board 151 as a circuit board and supports the main board 151. A main body 190 and a cover body 210 as a lid body that covers at least the electronic component mounting area (surface) of the main substrate 151 that is covered and supported by the box-shaped main body 190. The box-shaped main body 190 and the cover body 210 are all formed of a non-conductive transparent synthetic resin whose inside can be visually recognized. Hereinafter, each covering member (the box-shaped main body 190 and the cover body 210) and the main substrate 151 constituting the main substrate box 150 will be described in detail.

  First, the box-shaped main body 190 will be described in detail. The box-shaped main body 190 is formed in a rectangular parallelepiped shape having an open upper surface, and positioning projections 192 and mounting bosses 193 for fixing and supporting the main board 151 are slightly inside the four corners on the inner side (upper surface) of the bottom plate 191. Is protruding. The positioning protrusion 192 protrudes from one diagonal end of the bottom plate 191, and the mounting boss 193 protrudes from the other diagonal end, and an attachment hole is formed at the center thereof. Thus, the positioning protrusions 192 are fitted with positioning holes 240 formed in one diagonal corner of the main board 151, and the mounting boss 193 is fitted in the other diagonal corner of the main board 151. The mounting holes 241 to be formed are made to correspond to each other and are fixed by conductive screws 242 described later. However, when the main substrate 151 is fixed as described above, a plurality of support protrusions 194 that support the back surface (solder surface) of the main substrate 151 are formed at appropriate intervals on the inner periphery of the side wall of the box-shaped main body 190. Yes.

  Further, projecting piece portions 208 project from the both sides of the upper side wall and the lower side wall of the box-shaped main body 190, and the projecting piece portions 208 are engaged with the engaging projecting pieces 217 of the cover body 210. A groove 195 is formed. The engagement step groove 195 has a first step groove 195a and a second step groove 195b formed in a crank shape. After the engagement protrusion 217 of the cover body 210 is first dropped into the first step groove 195a. Then, the box-shaped main body 190 and the cover body 210 are engaged by sliding toward the side (right side in FIG. 5) and dropping the engaging protrusion 217 into the second step groove 195b. The two-stage drop-in structure as described above is adopted because the connectors 151a to 151i mounted on the main board 151 are smoothly inserted into the connector through holes 213 of the pattern covering plate 212 described later, and the box-shaped main body 190 and the cover body are inserted. This is for engaging 210. Note that the engagement between the engagement protrusion 217 and the engagement step groove 195 and the action of the protrusion piece 208 will be described in detail later.

  Moreover, the rotation sealing member 220 which can be rotated only in one direction is provided in the outer side of the both side wall of the box-shaped main body 190 so that removal is impossible. The rotary sealing member 220 is formed of a bottomed cylindrical member, and is attached in a state where the open side of the cylindrical portion faces the lateral side wall of the box-shaped main body 190. Although the rotation sealing member 220 will be described later, the rotation sealing member 220 is formed of, for example, an opaque resin or the like, the notch portions 221 are formed at a plurality of locations on the outer periphery of the cylindrical portion, and further provided at a plurality of locations. Between the cutouts 221, a rotational cutting part 222 protruding outward from the outer periphery of the cylindrical part is provided in a state where it can be cut artificially.

  The rotation sealing member 220 is a fixing means for preventing the box-shaped main body 190 and the cover body 210 from being separated from each other, and an opening prevention protrusion 230 (described later) formed to protrude from the cover body 210 is notched on the rotation sealing member 220. The cylindrical portion of the rotational seal member 220 that is not the notch portion 221 of the rotational seal member 220 after the pivot seal member 220 is positioned inside the tubular portion of the rotational seal member 220 by being inserted through the portion 221. The box-shaped main body 190 and the cover body 210 are brought into a sealed state in which they cannot be removed. That is, even if the box-shaped main body 190 and the cover body 210 are to be removed in the sealed state, the opening prevention protrusion 230 positioned inside the rotary seal member 220 abuts the inside of the cylindrical portion of the rotary seal member 220. The sealing state between the box-shaped main body 190 and the cover body 210 cannot be released.

  Further, engaging projections 205 project outwardly from the upper and lower portions of both side walls in the vertical direction of the box-shaped main body 190, and are locked so as to be parallel to the side wall at the substantially center of the other side wall in the vertical direction. A lever 206 is formed. The engaging protrusion 205 is engaged with an engaging hole 257 formed in the mounting base 250 described later, and the locking lever 206 is locked in a locking hole 259 of the mounting base 250. . Therefore, a locking claw 207 is formed at the lower end of the locking lever 206. That is, the engagement protrusion 205 and the locking lever 206 are members for detachably attaching the main board box 150 to the attachment base 250.

  As shown in FIG. 5, the main board 151 mounted on the box-shaped main body 190 configured as described above is constituted by a rectangular printed wiring board, and most of its upper surface contains RAM and ROM. CPU 243 (CPU, RAM, ROM may be separately formed as a chip or a one-chip microcomputer), which is a so-called one-chip microcomputer formed into a single chip, and electronic components such as transistors and resistors are mounted. On the other hand, regions on both sides in the vertical direction are formed as connector mounting regions for mounting the plurality of connectors 151a to 151i. In addition, positioning holes 240 and mounting holes 241 are formed at the four corners of the main board 151. As described above, the positioning protrusions 192 and the mounting bosses 193 projecting from the inner four corners of the bottom plate 191 of the box-shaped main body 190 are formed. It is fixed with an engagement or conductive screw 242.

  The mounting hole 241 is formed in a portion where the ground line of the main board 151 is printed, and when the conductive screw 242 is fixed, the ground line and the conductive screw 242 are electrically connected. The conductive screw 242 has a flat tip contact surface at the tip, and when the main board 151 is fixed to the mounting hole 241, the tip is exposed on the back side of the bottom plate 191. Therefore, as will be described in detail later, when the main board box 150 is mounted on the mounting base 250, it comes into pressure contact with the elastic contact piece 261 of the mounting base 250.

  As described above, the cover body 210 as a lid body that covers the mounting surface side of the main substrate 151 supported by the box-shaped main body 190 is formed in a box shape with the bottom open, and both the side wall plates 211 in the vertical direction in the figure and Heat dissipation holes 214 are formed above and below the top plate. In addition, a pattern covering plate 212 as a cover plate in which a connector through hole 213 as an opening is formed protrudes outward from the lower ends of both side wall plates 211 (the side in contact with the main board 151). . Since the connector through hole 213 is formed in substantially the same size as each of the connectors 151a to 151i mounted on the main board 151, only the connectors 151a to 151i pass through the connector through hole 213 and are connected to the connectors 151a to 151i. The periphery of 151 a to 151 i is covered with a pattern covering plate 212. As a result, the wiring patterns around the connectors 151a to 151i are completely covered. Therefore, it is possible to prevent unauthorized wiring from being soldered to the wiring patterns around the connectors 151a to 151i. Foreign matter including wiring cannot be inserted from between the substrate 151 and the cover body 210, and in any case, illegal acts on the main substrate 151 cannot be performed.

  Further, the upper surface plate of the cover body 210 is formed with the heat radiation holes 214 in the upper and lower sides as described above, and is written when the model name sticker attaching part 215 for attaching the model name sticker therebetween and the main board 151 are inspected. A history sticker pasting portion 216 for pasting a history sticker describing items of “inspector” and “inspection date” is formed.

  On the other hand, at the center of the upper and lower side wall plates of the cover body 210 in the illustrated horizontal direction, when the box-shaped main body 190 and the cover body 210 are combined, the cover body 210 is inserted through the notch 221 of the rotary sealing member 220 described above and rotates When the opening prevention protrusion 230 located inside the cylindrical portion of the sealing member 220, the box-shaped main body 190, and the cover body 210 are combined, the rotational sealing is performed at a position outside the cylindrical portion of the rotational sealing member 220. A rotation preventing protrusion 231 that restricts the rotation of the rotation sealing member 220 by contacting the rotation cutting part 222 described above by rotating the member 220 is provided.

  Further, L-shaped engaging protrusions 217 are provided to protrude outward from both ends of the upper and lower side wall plates in the horizontal direction of the cover body 210, and the engaging protrusions 217 are engaged with the box-shaped main body 190. It can be dropped into the joint step groove 195. More specifically, as shown in FIG. 7A, the engaging protrusion 217 is formed by a vertical piece 217b in the vertical width direction and a horizontal piece 217a in the horizontal width direction on the upper and lower side walls of the cover body 210. It is L-shaped.

  Further, the first step groove 195a of the engagement step groove 195 described above has a lateral width dimension at the entrance thereof that is slightly larger than the horizontal piece 217a, and the dimension in the depth direction thereof is the same as that of the first step groove 195a. When the horizontal piece 217a is brought into contact with the bottom surface, the pattern covering plate 212 is located at a position higher than the upper ends of the connectors 151a to 151i and is not obstructed by the member of the box-shaped main body 190 constituting the engagement step groove 195. It is a dimension that can slide horizontally. The width of the second step groove 195b is substantially the same as that of the horizontal piece 217a, and the height dimension is such that the back surface of the pattern covering plate 212 is in contact with the upper surface of the main substrate 151. The height of the vertical piece 217b does not protrude from the upper end of the first step groove 195a. In the second step groove 195b shown in FIG. 7A, a notch 195c is formed slightly above the main substrate 151. However, the notch 195c is not necessarily required.

  7B, the horizontal piece 217a of the engagement protrusion 217 is dropped into the first step groove 195a of the engagement step groove 195 and brought into contact with the bottom surface of the first step groove 195a. In the abutted state, the pattern covering plate 212 is stopped at a position above the connectors 151 a to 151 i of the main board 151. Thereafter, as shown in FIG. 7C, by sliding the horizontal piece 217a to the right side, the horizontal piece 217a is dropped into the second step groove 195b and at the same time, the connector through hole 213 of the pattern covering plate 212 is formed. It is dropped so as to penetrate from above the connectors 151a to 151i. Thereby, the cover body 210 can be attached to the box-shaped main body 190. At this time, the vertical piece 217b of the engagement protrusion 217 closes the communication portion between the first step groove 195a and the second step groove 195b. It cannot be invaded. Conversely, when removing the cover body 210, the cover body 210 can be easily removed by lifting it upward, sliding it to the left, and further lifting it.

  However, as a premise that the cover body 210 can be separated from the box-shaped main body 190, it is necessary that the above-described notch portion 221 be located at a position where the opening prevention protrusion 230 provided on the cover body 210 can be inserted. Therefore, it is necessary to rotate the rotation sealing member 220 so that the position of the notch 221 can be inserted into the opening prevention protrusion 230. At this time, in a state in which the box-shaped main body 190 and the cover body 210 are combined, the position where the opening prevention protrusion 230 cannot be inserted through the notch 221, that is, the opening prevention protrusion 230 is inside the cylindrical portion of the rotary seal member 220. When the rotary seal member 220 is rotated to the position where the opening prevention protrusion 230 is covered with the cylindrical portion of the rotary seal member 220 that is not a notch, the rotary seal member 220 is rotated. Even so, the rotation cutting member 222 projecting from the outer periphery of the rotation sealing member 220 and the rotation preventing protrusion 231 provided on the cover body 210 come into contact with each other, and the rotation sealing member 220 cannot be rotated. The cover member 210 can be separated from the box-shaped main body 190 by rotating the rotary sealing member 220 by cutting the rotary cutting section 222 and moving the cutout section 221 to a position where the opening preventing projection 230 can be inserted. It becomes a state.

  In this embodiment, the rotation prevention protrusion 231 is formed to protrude from the cover body 210, but the rotation prevention protrusion 231 may be formed to protrude from the box-shaped main body 190. In this case, the rotation prevention protrusion 231 is formed to protrude at a position that prevents the rotation sealing member 220 from rotating so that the notch 221 is located at a position where the opening prevention protrusion 230 can be inserted. However, as in this embodiment, the rotation preventing projection 231 is formed to protrude from the cover body 210, and the opening preventing projection 230 and the rotation preventing projection 231 are located close to each other during the operation of the rotation sealing member 220. The positional relationship among the opening prevention protrusion 230, the rotation prevention protrusion 231, the cutout part 221, and the rotation cutting part 222 can be easily grasped, and workability is improved.

  Further, in this embodiment, the rotary cutout part 222 is formed to project at a position close to the open side outside the cylindrical part of the rotary seal member 220 and overlaps the notch part 221 in the thickness direction of the rotary seal member 220. However, the position where the protrusion is formed is not limited to this example, and any position that is located outside the cylindrical portion of the rotation sealing member 220 and between the notches 221 in the rotation direction may be used. You may project and form in a position. For example, the rotational cutting part 222 protrudes to a position that does not overlap the notch part 221 in the thickness direction of the rotational sealing member 220 at a position close to the bottom surface outside the cylindrical part of the rotational sealing member 220 (position far from the open side). In this case, when the cover body 210 and the box-shaped main body 190 are combined, the side surface of the rotation prevention protrusion 231 that protrudes from the cover body 210 (not opposed to the side surface of the cover body 210). The rotation prevention protrusion 231 having a size with which the surface and the side surface of the rotation cutting portion 222 (the surface not facing the outer side of the cylindrical portion of the rotation sealing member 220) abut may be formed. .

  Further, even when the cover body 210 is forcibly lifted from both side wall plates 211 in the illustrated vertical direction and a gap is created to attempt to tamper with it, the horizontal piece 217a abuts on the inner surface of the second step groove 195b, and the abutment Even if it is attempted to insert a foreign substance from the side face in this state, it cannot be inserted from the side of the main board box 150 by the side wall plate 211, so that it is possible to reliably prevent fraud. Further, by providing an engaging portion by the engaging protrusion piece 217 and the engaging step groove 195 as described above, a fastening portion that finally attaches (for example, the rotation sealing member 220 and the release prevention protrusion 230). Therefore, the cost can be reduced and the assembling work can be facilitated.

  In the state in which the box-shaped main body 190 opened at the upper side and the cover body 210 opened at the lower side are closed as described above, the entire peripheral side wall of the box-shaped main body 190 and the entire peripheral side wall of the cover body 210 are on the side. It is designed to overlap as seen from the side. This means that a gap is not formed between the box-shaped main body 190 and the cover body 210 when viewed from the side, and a gap is generated between the box-shaped main body 190 and the cover body 210. When viewed from the back side of the cover body 210 (when viewed from the right to the left in FIG. 5), in this case, since it is perpendicular to the main board 151, the box-shaped main body 190 and the cover body are temporarily Even if a thin wire-like foreign object is to be inserted through the gap with 210, it is not possible to reach the electronic component mounted inside the main board 151 unless the foreign object is bent at a right angle. The board box 150 has an advantage that it is difficult to cheat.

  Here, the rotation sealing member 220 provided in the main board box 150 comprised as mentioned above is demonstrated. FIG. 8A is a cross-sectional view seen from one side in a state where the rotary sealing member 220 is not attached to the box-shaped main body 190, and FIG. It is sectional drawing seen from the front and one side in the state attached to 190. FIG.

  As described above, the rotation sealing member 220 is a bottomed cylindrical member that can rotate only in one direction on the outer surface of the box-shaped main body 190, and the open side of the cylindrical portion faces the outer surface of the box-shaped main body. It is installed so that it cannot be removed. That is, the rotation sealing member 220 includes a cylindrical engaged cylinder 226 on the bottom surface of the cylindrical portion, and the distal end portion of the engaged cylinder 226 is smaller than the radius of the cylinder of the engaged cylinder 226. Thus, the engaged portion 227 bent inside is formed. Then, the engaged portion 227 and the engaging hook portion 229a are inserted into the engaged cylinder 226 by inserting the engaging hook portion 229a of the rotating shaft portion 228 protruding outward from the outer surface of the box-shaped main body 190. Engaged and cannot be removed.

  The rotating shaft portion 228 has a fitting flexible groove 229b. That is, as shown in FIG. 8A, the rotation shaft portion 228 is divided into four forks from a position separated from the outer surface to the outer surface of the box-shaped main body 190, and each is formed to have elasticity. For example, when the rotary seal member 220 is engaged with the rotary shaft portion 228 projecting from the box-shaped main body 190, the engagement hook portion 229 a formed at the distal end portion of the rotary shaft portion 228 is engaged. Inserted into the tube 226 and engaged by the engaged portion 227 and the engaging hook portion 229a provided at the tip of the engaged tube 226, when inserting the engaging hook portion 229a The distal end portions of the rotating shaft portions 228 having the respective engaging hook portions 229a are distorted in the direction approaching each other toward the opposed distal end portions, and can easily enter the engaged cylinder 226. Then, the distal end portion of the rotating shaft portion 228 that has been distorted when the engaging hook portion 229a enters the engaged portion 227 returns to its original shape due to elasticity, and is engaged with the engaging hook portion 229a. The rotary sealing member 220 is provided on the box-shaped main body 190 so that it cannot be removed.

  Further, the box-shaped main body 190 is provided with a cylindrical anti-reverse cylinder member 224 that allows the rotary seal member 220 to rotate only in one direction, and the outer periphery of the anti-reverse cylinder member 224 rotates outward. The sealing member 220 has a gentle inclination with respect to the rotatable direction (for example, a gentle angle of about 15 ° with respect to the outer surface of the reverse rotation preventing cylinder member 224) and the rotational sealing member 220 cannot be rotated. An anti-reverse protrusion 225 that protrudes so as to have a steep inclination with respect to the direction (for example, perpendicular to the outer surface of the anti-reverse cylinder member 224) is formed. The reverse rotation prevention protrusion 225 engages with a reverse rotation prevention hook 223, which will be described later, and allows the rotation sealing member 220 to rotate only in one direction.

  An anti-reverse hook 223 is formed to project from the inside of the cylindrical portion to the inside of the rotary sealing member 220. In this embodiment, the reverse rotation prevention hook 223 is formed to project from a predetermined position inside the cylindrical portion of the rotation sealing member 220 at a predetermined angle with respect to the direction in which the rotation sealing member 220 cannot rotate. As shown in FIG. 8 (B), when the rotary seal member 220 is attached to the box-shaped main body 190, the outer periphery of the reverse rotation prevention cylinder member 224 is moved from a predetermined position inside the cylindrical portion of the rotary seal member 220. Projecting in the direction of tangent. Further, by attaching the rotation sealing member 220 to the box-shaped main body 190, the reverse rotation prevention hook 223 comes into contact with the reverse rotation prevention protrusion 225, and the rotation sealing member 220 is moved only in the direction in which the reverse rotation prevention protrusion 225 has a gentle inclination. Make it pivotable.

  When the rotation sealing member 220 is rotated with the reverse rotation prevention hook 223 in contact with the reverse rotation prevention protrusion 225, the reverse rotation prevention hook 223 approaches the inner surface of the cylindrical portion of the rotation sealing member 220. After being distorted and moving in contact with a surface having a gentle inclination of the reverse rotation prevention protrusion 225 and reaching the top of the reverse rotation prevention protrusion 225, the rotation sealing member 220 is further rotated in the same direction. The surface that has a steep inclination moves to the front of the rotation direction and returns to its original state due to elasticity, and the surface that has a steep inclination with respect to the direction in which the reverse rotation prevention hook 223 and the reverse rotation prevention protrusion 225 cannot rotate. Together, the rotation of the rotary seal member 220 in the reverse direction is restricted, and the rotary seal member 220 can be rotated only in one direction.

  Further, the reverse rotation prevention hook 223 of the rotation seal member 220 and the reverse rotation prevention protrusion 225 formed on the reverse rotation prevention cylinder member 224 are locked to prevent the rotation seal member 220 from freely rotating. . That is, in a state where the rotation sealing member 220 is not rotated, a surface having a gentle inclination with respect to the rotation direction of the reverse rotation preventing protrusion 225, and a surface having a sharp inclination with respect to the direction in which the rotation prevention member 225 cannot rotate, The reverse rotation prevention hook 223 is positioned between the two, and by engaging with both surfaces, the rotation sealing member 220 is prevented from freely rotating. The reverse rotation prevention protrusion 225 in this embodiment engages with the reverse rotation prevention hook 223 when the notch 221 formed in the cylindrical portion of the rotation sealing member 220 is in a predetermined position, and rotates. The sealing member 220 is formed so that the rotation of the sealing member 220 can be stopped. For example, a surface having a gentle inclination with respect to the rotation direction of the reverse rotation preventing protrusion 225 when the notch 221 is in a predetermined position, and a surface having a sharp inclination with respect to the direction in which the notch rotation is impossible, An anti-reverse protrusion 225 is formed so that the anti-reverse hook 223 is positioned between the two.

  In addition, notches 221 are formed at a plurality of locations on the outer periphery of the cylindrical portion of the rotary sealing member 220. In this embodiment, as shown in FIG. 8B, four notches 221 are formed on the outer periphery of the cylindrical portion of the rotary sealing member 220 so as to have the same interval. Further, between each of the cutout portions 221, an artificially excisable rotational excision portion 222 that protrudes outward from the outer periphery of the cylindrical portion of the rotational seal member 220 is provided. As described above, in this embodiment, the rotation sealing member 220 is attached to the box-shaped main body 190 so as to be rotatable in only one direction. Further, in this embodiment, as shown in FIG. 8B, the reverse rotation prevention hook 223 and the reverse rotation prevention protrusion 225 are formed so that the rotation sealing member 220 can be rotated counterclockwise. A rotation excision part 222 is projected from the front side in the direction in which the rotation sealing member 220 can rotate with respect to the part 221.

  Further, as shown in FIG. 8A, the above-described rotation preventing protrusion 231 protrudes above the opening preventing protrusion 230 provided on the cover body 210. Further, as shown in FIG. 8B, when the box-shaped main body 190 and the cover body 210 are combined, the opening prevention protrusion 230 is prevented from being rotated at a position inside the cylindrical portion of the rotation sealing member 220. The protrusions 231 are provided so as to protrude from positions outside the cylindrical portion of the rotary sealing member 220. That is, when the box-shaped main body 190 and the cover body 210 are combined, the rotation sealing member 220 is rotated so that the position of the notch portion 221 and the position of the rotation prevention protrusion 231 coincide with each other. It can be set as the position which can insert the notch part 221. FIG.

  Therefore, when the main board box 150 is opened for inspection of the main board 151 (inspection of whether the ROM is genuine after delivery) in a game hall or the like, the rotary sealing member 220 is rotated and opened. In a sealed state in which the prevention protrusion 230 is covered with a cylindrical portion that is not the notch 221 of the rotation sealing member 220, the opening prevention protrusion 230 attempts to rotate the rotation sealing member 220 to a position where the notch 221 can be inserted. In addition, the rotation sealing member 220 cannot be rotated any further unless the rotation excision part 222 and the rotation prevention protrusion 231 come into contact with each other and the rotation excision part 222 is not excised. However, as shown in FIG. 8 (B), the cross-sectional shape of the rotational cutting portion 222 is a shape that widens from the outer periphery of the cylindrical portion of the rotational sealing member 220 toward the outside, and is artificial (for example, pressing Therefore, it is possible to excise the base of the rotary excision part 222 (removal by folding the side close to the cylindrical part of the rotary seal member 220). The rotary sealing member 220 can be rotated to a position where 230 can be inserted through the notch 221. That is, the box-shaped main body 190 and the cover body 210 can be separated.

  In addition, the cross-sectional shape of the rotation excision part 222 is not limited to the above-described one, but a portion of about 1 to 2 mm from the base of the rotation excision part 222 is made thinner than the other parts, and the outer side is made thicker than the root part. It may be a thing. By comprising in this way, when the rotation cutting part 222 is pressed from the side, stress concentrates on a thin root part, and a root part can be folded easily.

  Further, when the box-shaped main body 190 and the cover body 210 are combined, the opening preventing projection 230 is in an openable state where the cutout portion 221 can be inserted (for example, the cutout portion 221 of the rotary sealing member 220 is shown in FIG. In the state where the box-shaped main body 190 faces upward with respect to the bottom plate 191), the operation of combining the box-shaped main body 190 and the cover body 210 is performed. Then, by rotating the rotary sealing member 220, the box-shaped main body 190 and the cover body 210 are engaged with each other by bringing the sealing state in which the notch portion 221 is not present above the opening prevention protrusion 230 in the figure. The main substrate 151 can be sealed by the box 150.

  That is, as shown in FIG. 9, the box-shaped main body 190 and the cover body 210 are connected with the cutout portion 221 of the rotary sealing member 220 at a position where the opening prevention protrusion 230 can be inserted (FIG. 9A). When assembling, the opening prevention protrusion 230 is inserted into the notch 221 and the opening prevention protrusion 230 is positioned inside the cylindrical portion of the rotary sealing member 220 (FIG. 9B). Then, in this embodiment, the rotation sealing member 220 is rotated in the rotatable direction, in the counterclockwise direction, so that the opening prevention protrusion 230 is not the notch portion 221 but the cylindrical portion of the rotation sealing member 220. The box-shaped main body 190 and the cover are rotated by rotating to the position to be covered, that is, by rotating the rotation sealing member 220 until the cylindrical portion of the rotation sealing member 220 that is not the notch 221 is positioned above the figure. Even if the body 210 is separated from the body 210, the opening prevention protrusion 230 comes into contact with the inner side of the cylindrical portion of the rotary sealing member 220, and a sealed state that cannot be opened (FIG. 9C) is obtained.

  Further, as described above, in this embodiment, the rotation of the rotation sealing member 220 is stopped when the notch portion 221 reaches a predetermined position. That is, when any notch 221 is located in the upper part of the figure in FIG. 9A, and in the upper part of the figure in FIG. 9C, a cylindrical part that is not the notch 221 of the rotary sealing member 220 is formed. The reverse rotation preventing protrusion 225 is formed so as to stop the rotation of the rotation sealing member 220 when positioned.

  In addition, engravings “1” to “4” are formed in the vicinity of the rotational cutting portion 222 on the surface of the bottom plate portion of the cylindrical portion of the rotational sealing member 220. Further, even if the rotation sealing member 220 is further rotated in the same direction in the sealed state of FIG. 9C, the rotation cutting portion 222 and the rotation preventing protrusion 231 come into contact with each other, and the rotation sealing member 220 is rotated. It cannot be moved. Therefore, the rotation excision portion 222 that protrudes at the closest position on the opposite side (clockwise in this embodiment) to the rotation direction of the rotation sealing member 220 with respect to the rotation prevention protrusion 231 is excised. Thus, the rotation sealing member 220 can be rotated (FIG. 9D). That is, when the rotary excision part 222 is excised in FIG. 9C, the rotary excision part 222 located in the vicinity of the mark “1” is first excised and the rotary seal member 220 can be rotated. The state shown in FIG.

  When the box-shaped main body 190 and the cover body 210 are put in a sealed state without rotating the rotary sealing member 220 after cutting the rotary cutting portion 222 located in the vicinity of the mark “1”. In addition, in the case where the opening is again possible, the opening can be made by cutting the rotary cutting portion 222 located in the vicinity of the mark “2”. In this embodiment, the rotational excision part 222 is excised in the order corresponding to the markings indicating the order of excision of the rotational excision part 222 when the opening is made possible. If there is a rotational excision part 222 on the front side in the rotational direction (in this embodiment, the counterclockwise direction side of the notch part 221), the order of excision is made different from the order according to the marking. However, the number of times of excision of the rotational excision part 222 becomes clear by excising the rotational excision part 222 in the order according to the marking, and the opening prevention is performed when the box-shaped main body 190 and the cover body 210 are combined. After the protrusion 230 is inserted from the notch 221 into the inside of the cylindrical portion of the rotation sealing member 220, the same operation (for example, the rotation sealing member 220 is engaged only once (engaged with the reverse rotation prevention protrusion 225). Reversal prevention The operation of opening the main board box 150 and sealing are possible because the cover 223 moves by rotating the rotation sealing member 220 and then rotates) until it engages with the reverse rotation prevention protrusion 225. Operation becomes easier.

  Then, the rotation sealing member 220 is further rotated in the same direction, the notch portion 221 is positioned at a position where the opening prevention protrusion 230 can be inserted (FIG. 9E), the cover body 210 is lifted upward in the drawing, and the notch The box-shaped main body 190 and the cover body 210 can be separated by inserting the opening prevention protrusion 230 into the portion 221 and positioning it outside the cylindrical portion of the rotary sealing member 220 (FIG. 9F).

  After separating the box-shaped main body 190 and the cover body 210 in this manner, the box-shaped main body 190 and the cover body 210 are rotated by inserting the opening prevention protrusion 230 through the notch 221 and rotating the rotation sealing member 220. Can be in a sealed state. In this embodiment, there are four rotation excision parts 222 and four notch parts 221 provided on the outer periphery of the cylindrical part of the rotation sealing member 220, and FIG. 9 (A) to FIG. By performing the operation shown in F) four times, the box-shaped main body 190 and the cover body 210 cannot be sealed.

  Note that it is possible to easily increase the rotation excision portion 222 protruding from the rotation seal member 220 and the cutout portion 221 formed outside the cylindrical portion of the rotation seal member 220. In that case, the number of the reverse rotation prevention hooks 223 provided on the rotation sealing member 220 is twice the number of the cutout portions 221 and the rotation cutout portions 222, and positions where the opening prevention protrusions can be inserted into the cutout portions 221. The rotation sealing member 220 may be disposed at a position where the rotation of the rotation sealing member 220 can be stopped at a position where the insertion is impossible.

  Further, since the rotary seal member 220 is formed separately from the box-shaped main body 190 and the cover body 210, the tubular portion of the rotary seal member 220 is cut off to engage the engaged portion 227 of the rotary seal member 220. By disengaging the rotation shaft portion 228 from the engagement hook portion 229a, the rotation sealing member 220 is removed from the box-shaped main body 190, and a new rotation sealing member 220 is attached to the box-shaped main body 190. The box-shaped main body 190 and the cover body 210 can be reused. In this embodiment, the number of the rotational cutting portions 222 provided on the outer periphery of the cylindrical portion of the rotational sealing member 220 is four, but the present invention is not limited to this.

  Further, in the sealed state of the main board box 150, the main board box 150 cannot be opened unless a predetermined portion of the rotary sealing member 220 (the rotary cutting section 222 in this embodiment) is cut out. It has become. Therefore, when the rotary excision part 222 is excised other than the inspection of the main board 151, it is possible to immediately and reliably determine that the main board 151 has been fraudulent by this excision. Can improve the crime prevention effect.

  Further, in this embodiment, the rotation shaft portion 228 and the reverse rotation preventing cylinder member 224 are formed so as to protrude from the box-shaped main body 190 and are integrally formed with the box-shaped main body 190. It is configured to be rotatable only in the direction, and may be configured to be screwed to the box-shaped main body 190 by a non-removable one-way screw or the like. In this case, it is desirable that a positioning projection and a positioning hole are provided at a position where the rotation shaft portion 228 and the reverse rotation preventing cylinder member 224 are attached, and screwed after positioning. With this configuration, the box-shaped main body 190 can be easily molded.

  In this embodiment, the rotation shaft portion 228 is projected from the box-shaped main body 190 and the rotation seal member 220 is attached to the box-shaped main body 190. However, the rotation shaft portion 228 is covered. You may comprise so that the rotation sealing member 220 may be attached to the cover body 210 by protrudingly providing to the body 210. FIG. In this case, the opening prevention protrusion 230 and / or the rotation prevention protrusion 231 may be configured to protrude from the box-shaped main body 190. However, providing the rotating shaft portion 228 on the box-shaped main body 190 as in this embodiment has the following advantages. In general, the box-shaped main body 190 that supports the main board 151 is thicker (depth) than the cover body 210 to accommodate a board on which an IC or the like is mounted, and even if the rotary sealing member 220 is attached. It is not necessary to further increase the thickness in accordance with the size (outer diameter) of the rotary sealing member 220. Therefore, the main board box 150 can be molded without increasing the thickness of the entire main board box 150 by attaching the rotary sealing member 220 to the box-shaped main body 190.

  Further, in the above-described embodiment, the board containing box that contains the main board 151 for controlling the game operation is shown, but other control boards, for example, the lamp driver board 80, the audio output board 82, and the payout control board. 36, the configuration of the present invention may be applied to a substrate box that accommodates the power supply unit substrate 137 and the like. The board storage box only needs to cover the entire area of the circuit board other than the connector (for example, electronic component mounting surface, solder surface, connector pattern surface) with the main body and the lid. An extremely small opening with a clearance or a heat radiating hole may be formed. Therefore, even if a part of the ground line other than the connector or a part of the substrate on which the pattern is not formed is exposed to the outside from the box, it is sufficient that the essential data line pattern and mounting parts are not exposed. The number of connectors provided on the circuit board accommodated in the board accommodation box may be one or more.

It is a front view which shows the ball game machine which concerns on this embodiment. It is a rear view which shows a bullet ball game machine. It is a block diagram which shows the relationship between a main board | substrate, various control boards, and an electrical component. It is a perspective view which shows the attachment state of the power supply unit and main board box which are attached to the left part seeing from the back of the lower structure part of a mechanism board. It is a disassembled perspective view of a main board box. It is a front view showing a main board box. It is sectional drawing for demonstrating engagement with the box-shaped main body which comprises a main board | substrate box, and a cover body. (A) A cross-sectional view seen from one side when the rotary seal member 220 is not attached to the box-shaped main body 190, and (B) the front and one side when the rotary seal member 220 is attached to the box-shaped main body 190. It is sectional drawing seen from the direction. It is explanatory drawing which shows the rotation state of a rotation sealing member.

Explanation of symbols

1 Ball game machine (game machine)
DESCRIPTION OF SYMBOLS 9 Game board 150 Main board box 151 Main board 190 Box-shaped main body 210 Cover body 220 Rotation sealing member 221 Notch part 222 Rotation cutting part 223 Reverse rotation prevention hook 224 Reverse rotation prevention cylinder member 225 Reverse rotation prevention protrusion 226 Engagement cylinder 227 Engagement part 228 Rotating shaft part 229a Engaging hook part 229b Fitting groove for fitting 230 Opening prevention protrusion 231 Rotation prevention protrusion 250 Mounting base

Claims (4)

In a gaming machine equipped with a circuit board storage box for storing a circuit board,
The board storage box is composed of a main body on which the circuit board is supported, and a lid that covers at least the circuit board supported on the main body,
A bottomed cylindrical rotary sealing member that can be rotated only in one direction on the outer surface of either the main body or the lid body is provided so that it cannot be removed with the open side of the cylindrical portion facing the outer surface, When the main body and the lid are combined on the other outer surface, an opening prevention projection is provided at a position that is inside the cylindrical portion of the rotary sealing member, and further, on the outer surface of either the main body or the lid When the main body and the lid are combined, a rotation prevention protrusion is provided at a position that is outside the cylindrical portion of the rotation sealing member,
The rotating seal member includes notches provided at a plurality of locations on the outer periphery, and a plurality of artificially excisable portions projecting outward from the outer periphery between the plurality of notches. Prepared,
When the main body and the lid are combined, the opening portion is inserted into the cutout portion in a state where the cutout portion is in a position where the opening portion can be inserted, and the cylindrical portion of the rotary sealing member is inserted. After the rotation sealing member is positioned inside, the rotation preventing member is rotated to a position where the opening preventing projection is covered by the cylindrical portion which is not the notched portion, and the opening preventing projection cannot be inserted through the notched portion. While making it impossible to remove the lid with respect to the main body by making it impossible position,
After cutting off the rotary cutting part, the rotary sealing member is rotated to set the next notch to the insertion-possible position so that the lid can be removed from the main body. A gaming machine characterized by A reverse rotation prevention member having a plurality of reverse rotation prevention claws is provided on either the inside of the rotation sealing member or the outside of the substrate storage box, and the other is engaged with one of the plurality of reverse rotation prevention claws. An engagement hook member is provided,
The rotation sealing member is rotated in the one direction without the engagement hook member and the reverse rotation preventing claw being engaged, and the rotation in the reverse direction opposite to the one direction is the engagement. It is prevented by the engagement between the mating hook member and the reverse rotation preventing claw,
When the notch portion is in the insertion-possible position, the engagement hook member and the reverse rotation prevention claw are engaged with each other, so that the notch is in the insertion-possible position. The gaming machine according to claim 1, wherein the member is stopped.   The gaming machine according to claim 1 or 2, wherein the rotation prevention protrusion is provided on one of the main body or the lid body on which the release prevention protrusion is provided. The gaming machine according to any one of claims 1 to 3, wherein the main body is provided with the rotary sealing member.

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