JP4385326B2 - Board case for gaming machines - Google Patents

Description

  The present invention relates to a pachinko machine, a slot machine, and other gaming machines, and more particularly to a security structure that protects a control board configured by a ROM included in the gaming machine by housing it in a case that cannot be taken out unless it is destroyed.

  For example, in a gaming machine such as a slot machine or a pachinko machine, various control boards composed of a CPU as an arithmetic processing unit, a ROM (Read Only Memory) and a RAM as storage elements, etc. The operation of the gaming machine is controlled by performing arithmetic processing by the CPU according to a system program stored in the board case and stored in the ROM.

  In such a gaming machine, in order to prevent the pachinko ball or the medal of the slot machine from colliding with the board case and being damaged, a main control board on which a ROM storing a program for controlling the game is mounted is used. It is housed in a substrate case comprising a case main body fixed to the machine and a case cover covering the case main body.

  In these gaming machines, game operations such as winning probability or the number of winning balls or payout medals are controlled via the CPU based on a program recorded in the ROM. Here, the ROM may need to be replaced due to damage to the recorded contents. In this case, the ROM itself can be easily attached / detached through a socket so that only the ROM can be replaced without replacing the substrate itself. It is mounted on the board.

  On the other hand, the act of fraudulently acting on the ROM has become a problem. For example, open a slot machine housing and install a regular ROM attached to the main control board with a program different from the program produced by the manufacturer. An illegal act of playing a game by exchanging the recorded illegally modified ROM may be performed. Conventionally, in order to prevent such illegal acts, the case cover is caulked to the case body and fixed in a sealed state so that the case cover cannot be opened unintentionally, and the ROM cannot be taken out unless the specific sealing portion is destroyed. I have to. The main control board and the ROM after opening are configured so that the opening history and the number of times of opening are visually determined, and a record is left on the opening recording paper provided on the main control board (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2000-14907

  However, when actually destroying a specific sealing part of the case cover and opening the main control board and ROM for inspection, in addition to performing a detailed check visually, it is possible to detect fraud without checking the X-rays and source contents of the ROM. In addition, there is a problem that inspection takes a lot of labor and time.

  The present invention has been made to solve such problems. In addition to the conventional caulking case, a ROM cover having a fitting structure that covers the ROM is provided, and the ROM cover is once fitted to the caulking case. After sealing in the crimped state, the ROM cannot be taken out unless the ROM cover is destroyed, so that even if an unauthorized person acts illegally on the main control board, for example, the inspector acts illegally on the ROM. It is an object of the present invention to provide a gaming machine board case in which it is possible to know at a glance whether a fraud has been done or where a fraud has been done elsewhere, and the gaming machine will not function.

In order to achieve the above object, the present invention is characterized by having the structure of claims 1 to 3 (A to C).
A. A control board on which a ROM storing a program for controlling a game is mounted, a ROM cover that covers the ROM, a case body that is fixed to the gaming machine, and a case cover that covers the case body, and the ROM is mounted. And a caulking case that contains the control board and the case cover is fixed to the case main body in a sealed state with a specific sealing portion, and a board case of a gaming machine comprising:
The ROM cover is provided with a pair of fitting projections connected to both sides of the ROM cover via connecting members,
In the vicinity of the area where the ROM is mounted on the control board , a pair of through-holes are formed to respectively penetrate the pair of snapping projections.
At locations corresponding to the pair of through holes formed in the control board of the listen over scan body before accommodating the control board where the ROM is mounted, the pair of the pair of fixed fitting projections are fitted respectively A fitting hole is formed,
Each passed through the pair of fixed fitting protrusion into the pair of through holes, and by fitting each of the pair of fitting holes, sealing the ROM, the ROM cover before listen over scan body Fixed in the crimped state,
When retrieving the control board where the ROM is mounted from the crimping case, unless cutting the connecting member in a state releasing the sealed state of the crimping case to break the particular sealing portion of said caulking case The structure cannot be taken out.

B. When the connecting member is made of a conductive material and energized between the pair of fitting protrusions and the ROM sealed with the ROM cover and the caulking case is taken out, the connecting member is cut, and the cut state is electrically Detect.
C. When a part of the CPU circuit of the gaming machine is disposed between the pair of energized projections that are energized , and the ROM and the control board are removed together with the ROM cover, a part of the CPU circuit is disconnected. CPU stops functioning.

I. According to the invention of claim 1, provide a separate ROM cover covering the ROM and caulking case, each passed through a pair of fixed fitting projections ROM cover a pair of through holes of the control board, or pickled over scan body of that is fitted to the pair of fitting holes, sealing the ROM, fixed with caulking state ROM cover against to case body, when taking out the ROM or the control board from the crimping case is caulked case This is a structure that cannot be removed unless the connecting member is cut in a state where the specific sealing portion is broken and the sealing state of the caulking case is released, so when the administrator tries to remove the ROM or the control board, the specific sealing of the caulking case taken out by cutting the connecting member by destroying the site while releasing the sealed state of the crimping case, fitted to the fitting hole of the to case body is covered with a new ROM cover ROM And it may be sealed by the fitted projections. If an unauthorized person tries to take out the ROM or the control board, the ROM cover will be destroyed. For example, even if an unauthorized person acts on the control board, the inspector has acted illegally on the ROM or misplaced it elsewhere. Can be discovered immediately.

B. According to the invention of claim 2 , the connecting member is made of a conductive material , energized between the pair of fitting projections, and the connecting member is removed when the ROM and the control board sealed by the ROM cover and the caulking case are taken out. when cutting, since detecting the disconnection state electrically, when the administrator attempts to retrieve the ROM and the control board is taken out by cutting the connecting member after releasing the energization of the connecting member, the new RO M The connecting member may be energized by covering the ROM cover, fitting it in the fitting hole of the caulking case, fitting the protrusion and sealing it. When an unauthorized person cuts the connecting member in an attempt to take out the ROM and the control board, it is detected by the electric signal that the connecting member has been disconnected, and the fraud can be immediately detected.

C. According to the third aspect of the invention, when the ROM and the control board are removed together with the ROM cover, the CPU circuit is disconnected and the CPU does not function. of CPU unless sealed by the ROM cover the RO M ceases to function, it can not be a bad person game.

    Hereinafter, a slot machine will be described as an example of a preferred embodiment of a gaming machine according to the present invention with reference to the drawings. 1 is a perspective view showing the external structure of the slot machine 1, and FIG. 2 is a development view showing the internal structure of the slot machine 1 in a state where the front door 3 is opened from the housing 2. As shown in FIG.

  In FIG. 1, a slot machine 1 includes a housing 2 formed of a substantially rectangular box, and a front door 3 attached to the housing 2 and a hinge mechanism so as to be opened and closed. The front side of the front door 3 is divided into an upper panel portion 4 and a lower panel portion 5, which are integrally formed of hard plastic as a so-called decorative board designed to enhance the visual effect. Further, below the lower panel portion 5, there is provided a tray unit 6 in which a tray portion 6a for storing medals (game media) to be paid out at the time of winning is integrally formed. In addition, an operation console 7 is integrally formed between the upper panel portion 4 and the lower panel portion 5 so as to protrude toward the player side and in which switches for performing a game operation are arranged. In addition, the upper panel part 4, the console 7, the lower panel part 5, and the saucer unit 6 face the player side, and these constitute a "front panel part".

  A panel surface 41 formed of a hard plastic plate or the like is provided at the center of the upper panel portion 4. A substantially rectangular transparent display window 42 is formed substantially at the center of the panel surface 41, and the three reels 101a, 101b, 101c of the reel unit 100 provided in the housing 2 are viewed through the display window 42. . Here, in the reel unit 100 installed in the housing 2, cylindrical reels 101a, 101b, and 101c are arranged in the rotation axis direction, respectively, and the outer circumferential surfaces of the reels 101a, 101b, and 101c are arranged in the circumferential direction. A plurality of types of symbols are drawn along. The player can visually recognize three symbols in the vertical direction drawn on three rows of reels through the display window 42.

  In addition, on the panel surface 41, by turning on a lamp (not shown) provided on the back surface side, for example, a gaming state display unit 43 that displays information relating to a gaming state such as internal winning for a winning combination, and a plurality of light emission Dot matrix display unit 44 that displays a dot image by turning on a diode, information such as the number of medals credited (stored) in the slot machine 1, the number of medals earned by winning, or the number of winning prizes Numerical information display sections 45 for displaying numerical values are provided around the display window 42, respectively. On the upper part of the upper panel part 4, there are arranged an effect lighting part 46 incorporating lamps such as high-intensity light emitting diodes and an effect sound emitting part 47a, 47b containing a speaker for generating sound effects relating to the game. Has been. In addition, a liquid crystal display unit 48 is disposed between the production sound emitting units 47a and 47b so as to face a display window formed by fitting a transparent hard plastic plate or the like. Note that the liquid crystal display unit 48 mainly displays images related to game effects.

  On the side of the upper panel portion 4 are provided lighting units 49a and 49b for production made of fluorescent lamps or high-intensity light emitting diodes. The plurality of effect lighting units 46, 49a, 49b and the like described above are turned on or blinking in accordance with the progress of the game, so that the visual effect in the game is enhanced. On the upper right side of the console 7, a medal insertion part 71 having an insertion slot for inserting medals is provided. In addition, on the left side of the upper surface of the console 7, three bet buttons 72, 73, 74 which are push button switches are provided. The bet buttons 72, 73, and 74 are button switches for presenting the number of medals to bet on one game of the slot machine. When the game is started, by pressing the bet button 72, one medal is bet on the game from the stored medals. Similarly, two medals are bet when the bet button 73 is pressed, and medals are bet on the three games when the bet button 74 is pressed. The bet button 74 is particularly called a “max bet button” because it bets the maximum number of medals.

  A start lever 75 is provided on the front left side of the console 7 to instruct the start of rotation of the reels 101a, 101b, and 101c. The start lever 75 is provided with a swingable operation rod having a spherical operation knob at the tip, and is turned on when the operation rod is tilted, and automatically when the hand is released from the operation rod by the biasing force of the spring. It is formed of a switch unit that returns to a position and is turned off. In the center of the console 7, stop buttons 76a, 76b, and 76c for instructing to stop the rotation of the reels 101a, 101b, and 101c are arranged in parallel corresponding to the arrangement of the reels. A key hole 77 into which a key for unlocking the front door 3 is inserted is provided on the right side of the front surface of the console 7. When an administrator or the like of the slot machine 1 inserts a predetermined key into the keyhole 77 and performs an unlocking operation, the front door 3 attached to the housing 2 can be opened forward by a hinge mechanism, and the front door 3 When these are closed to the housing 2 side, they are automatically locked.

  The lower panel portion 5 is provided with a panel 51 for displaying a picture of an appearing character or the like so that the player can recognize the model type of the slot machine 1. The saucer unit 6 disposed below the lower panel portion 5 includes a medal payout opening 61 for discharging medals at the time of winning a prize, a saucer portion 6a for storing the paid-out medals, and a speaker for generating an effect sound. Built-in production sound emitting units 62 are respectively arranged.

  Next, the internal structure of the housing 2 and the back surface structure of the front door 3 will be described with reference to FIG. In the figure, a main control board 20 housed in a hard plastic case is attached to the upper part of the housing 2 with a CPU (microcomputer) 201 (to be described later) that centrally controls the overall operation of the slot machine 1. . A reel unit 100 including reels 101a, 101b, and 101c is provided in the center of the housing 2. The reel unit 100 is positioned and attached to a predetermined frame so that the reels 101a, 101b, and 101c face the display window 42 of the front door 3 when the front door 3 is closed to the housing 2 side. Note that each of the reels 101a, 101b, and 101c is rotationally driven by a built-in stepping motor. Further, on the upper part of the reel unit 100, a spinning device board for sending a four-phase drive pulse signal to the stepping motor that rotationally drives each reel is attached, and the main control board 20 is rotated to the spinning device board. By sending drum drive (excitation) pulse data, each reel is controlled to rotate, brake and stop.

  Below the reel unit 100, a hopper device 21, an auxiliary storage unit 22 for storing medals overflowing from the hopper device 21, and a main power supply device 23 are provided. On the side surface of the main power supply device 23, a power supply device substrate 24 corresponding to a so-called switchboard is provided. Further, an external concentration terminal board 25 that can be connected to a management computer called a “hall computer” installed in the game hall is attached to the inner wall on the upper right side of the housing 2.

  A plurality of high-intensity light-emitting diodes 31 that are light sources of the effect lighting unit 46 are arranged on the back side of the front door 3, and the speakers 32a and 32b are opposed to the effect sound emitting units 47a and 47b. Is attached. Although not shown in FIG. 2, a liquid crystal display unit 48 is attached between the speakers 32a and 32b (see FIG. 1). Further, a sub-control board 30 formed of an electric circuit board is attached to the back side of the liquid crystal display unit 48. Note that the overall operation of the slot machine 1 is comprehensively controlled by the main control board 20 provided on the housing 2 side, and the sub control board 30 controls the display of effect video by the liquid crystal display unit 48 and effect lighting. Control mainly related to game effects, such as illumination control using the parts 46, 49a, 49b, and effect sound effect control using the effect sound emitting parts 47a, 47b, 62, is performed.

  Below the sub-control board 30, a panel plate having a transparent display window 42 for visually observing the reels 101a, 101b, 101c is disposed. Below the display window 42, a start lever 75 on the front side and A central display board 33 that functions as a relay board for transferring output signals of operation switches such as stop buttons 76a, 76b, 76c to the main control board 20 is provided. A medal sorting device 34 is attached below the central display substrate 33. The medal sorting device 34 is a device that determines and distributes the suitability of medals inserted into the medal insertion unit 71. Further, the medal sorting device 34 has a built-in medal sensor, and when a normal medal is inserted in a standby state of the game or the like, and the medal sensor detects this medal, a signal indicating acceptance of medal insertion is sent to the main control board. 20 to send.

  Below the medal sorting device 34, a guide member 35 that guides the regular medals sorted by the medal sorting device 34 to the hopper device 21 provided in the housing 2, and medals removed by the medal sorting device 34. A guide member 36 for guiding (or foreign matter) to the medal discharge port 61 is provided. In addition, a guide member 37 that guides medals discharged from the hopper device 21 to the medal discharge port 61 is provided at the lower part on the back side of the front door 3. Further, a speaker 38 is attached adjacent to the medal discharge port 61 so as to face the above-described effect sound emitting unit 62.

Next , a security structure of ROM (Read Only Memory ) will be described with reference to FIGS. A CPU as an arithmetic processing unit, a main control board 20 and the ROM and RAM or the like as a memory element is configured to be implemented, although not shown, is housed in a caulking case 220 which is fixed by crimping the casing 2 Is installed. Then, arithmetic processing is performed by the CPU in accordance with a system program stored in the ROM. Incidentally, FIG. 3, the caulking case 220 houses the main control board 20 R OM is mounted, and a side cross-sectional view of a fixed ROM cover 221 in the caulking state, FIG. 4, the ROM cover 221, ROM FIG. 3 is an exploded perspective view of a main control board 20 and a caulking case 220 that are mounted .

3 and 4, a ROM cover 221 that covers the ROM is provided. The ROM cover 221 has a pair of snapping projections 223 connected to each other via connecting members 222 on both sides thereof. Because killing protrusion 223 the is, with respect to a fitting hole 224 provided on both sides of the ROM accommodating region of the case body which houses the main control board 20 the ROM is mounted in the crimping case 220, ROM implementation of the main control board 20 After passing through the through hole 20a opened in the vicinity of the region, it is fitted in the crimped state, and the ROM is sealed in the crimped state. When the main control board 20 on which the ROM sealed in the crimped state is mounted on the crimping case 220 via the ROM cover 221 is taken out from the crimping case 220, the connecting member 222 is moved along the cutting line C. The main control board 20 on which the ROM is mounted together with a part of the ROM cover 221 that has been cut and destroyed is taken out. Therefore, when the main control board 20 on which the ROM is mounted is taken out from the caulking case 220, it cannot be taken out unless the ROM cover 221 is destroyed.

When a new ROM is sealed in the caulking case 220, the fitting protrusion 223 remaining in the fitting hole 224 and a part of the connecting member 222 are removed, and then the ROM cover 221 placed on the ROM is fitted. The protrusion 223 is inserted into the fitting hole 224 after passing through the through hole 20a of the main control board 20, and the ROM is sealed in a crimped state. Thus, when removing the main control board 20 mounted with the ROM from the caulking case 220, the ROM cover 221 must be destroyed, and when the ROM is newly sealed, the ROM cover 221 is required. For the administrator, there is no problem by preparing the ROM cover 221 in advance. However, an unauthorized person can destroy the ROM cover 221 and take out the main control board 20 on which the ROM is mounted. However, a new ROM cover 221 cannot be prepared. It cannot be sealed and the slot machine 1 will not function. Further, if the ROM cover 221 is destroyed, it can be easily found by an administrator.

Although not shown in FIGS. 3 and 4, the connecting member 222 is made of a conductive material, or a conductive member is attached to the connecting member 222 so that the connecting member 222 is energized. When the connecting member 222 is cut when the main control board 20 mounted with the ROM sealed by the ROM cover 221 and the crimping case 220 is taken out, the cut state is electrically detected and the warning lamp blinks. Or an alarm may be issued to notify the administrator so that fraud can be prevented.

Further, as shown in FIG. 5, a circuit 201a of the CPU 201 may be used as a means for preventing an unauthorized person from acting illegally. That is, a part of the circuit 201a of the CPU 201 is disposed in the process of sealing the ROM to the caulking case 220 with the ROM cover 221 (between the pair of projections on the ROM cover 221), and the main control board 20 on which the ROM is mounted. When the CPU 201 is removed together with the ROM cover 221, a part of the circuit 201 a of the CPU 201 is disconnected so that the CPU 201 does not function. When an unauthorized person breaks the ROM cover 221 and takes out the main control board 20 on which the ROM is mounted, the CPU does not function unless the main control board 20 on which the regular ROM is mounted is sealed with the ROM cover 221. Unauthorized persons cannot play games.

  Next, a control system provided in the slot machine 1 will be described with reference to the block diagram of FIG. In addition to the CPU 201, the main control board 20 is provided with a storage unit 203 composed of a semiconductor memory such as a ROM and a RAM. The CPU 201 executes arithmetic processing according to a system program 204 for a slot machine game stored in advance here. Thus, the overall operation of the slot machine 1 is comprehensively controlled. Operation switches such as bet buttons 72, 73 and 74, start lever 75, stop buttons 76a, 76b and 76c, and detection switches such as a medal sensor 34a of the medal sorting device 34 are connected to the main control board 20 with a wiring cable. Then, an operation related to the game is detected by output signals from these switches.

  In addition, a medal payout device such as a hopper device 21 and a sub control board 30 are connected to the main control board 20 by wiring cables. When winning is determined, the main control board 20 controls the hopper device 21 to pay out a predetermined number of medals to the tray 6a. The sub-control board 30 controls and drives the liquid crystal display unit 48, the effect lighting units 46, 49a, 49b, and the effect sound emitting units 47a, 47b, 62 based on a control signal from the main control board 20, thereby Productions that appeal to the visual and auditory sense of the person are performed as the game progresses. The main control board 20 is provided with a random number lottery unit 202, and a winning lottery table 205 is stored in the storage unit 203. For example, the CPU 201 activates the random number lottery unit 202 when the start lever 75 is operated, acquires a random number value, and refers to the winning lottery table 205 to thereby determine the winning combination or loser assigned to the obtained random number value. Lottery. If there is a winning combination corresponding to the random value, it is won as a winning combination of the game and stored in the internal lottery flag 206 of the storage unit 203. Here, the lottery method of winning combination is called “internal lottery”.

  The storage unit 203 stores non-rewritable reference data tables such as symbol arrangement data 207, reel stop position search table 208, and reel stop position selection table 209, and further includes a reel stop frame flag 210, a reel control flag 211, and the like. A rewritable data flag memory area is secured. These reference data table and data flag are used in the rotation and stop control of the reels 101a, 101b, and 101c, and details will be described later. Further, the main control board 20 includes a timer 212 that measures the time until the automatic stop control described later is started, and a pulse signal (rotary drive pulse data) that controls the stepping motors of the reels 101a, 101b, and 101c. A timer interrupt generation unit 213 for synchronizing is provided.

  Next, an outline of the game operation in the slot machine 1 will be described based on the flowchart shown in FIG. The slot machine 1 enters a standby state when a prize is won in a previous game and a medal payout is completed, or when a loss is confirmed in the previous game. In this standby state, a standby mode effect is provided that suggests the state to the player and prompts a game operation (step S101). When a player inserts a medal into the medal insertion unit 71 and presses one of the bet buttons 72, 73, 74, a predetermined number of medals are bet on the game from the medals (credits) stored therein, and the game is played. Preparation is made (step S102: YES).

  When the start lever 75 is tilted and the game is started in the game preparation state (step S103: YES), the main control board 20 starts to rotate the three reels 101a, 101b, 101c all at once (step S104). At the same time, the internal lottery described above is executed (step S105). The result of the internal lottery is stored in the internal lottery flag 206. Next, when one of the stop buttons 76a, 76b, 76c is pressed (stopped) by the player and the main control board 20 detects a reel stop operation (step S106: YES), the player is pressed. Control to stop the reel corresponding to the stop button is performed (step S107). When it is detected that all the reels 101a, 101b, and 101c have stopped (step S108: YES), the combination of the symbols displayed on each reel and the symbol related to the winning combination corresponding to the internal lottery flag 206 is one. It is determined whether it is correct (step S109).

  In the winning determination in step S109, for example, when three medals are bet on the game by pressing the bet button 74, each of the upper and lower reels 101a, 101b, and 101c viewed through the display window 42 is displayed. Of the three or nine symbols, three sets of symbols arranged in three horizontal rows along the upper, middle, and lower lines, diagonal lines along diagonal lines that descend to the right, and diagonal lines that descend to the left. Two sets of symbols arranged in a row are examined, and it is determined whether any one of the symbols matches the symbol combination related to the winning combination corresponding to the internal lottery flag 206. In addition, when the bet button 73 is pressed and two medals are bet, only the upper, middle, and lower stages are valid lines for determining the combination of symbols related to the winning combination. Further, when the bet button 72 is pressed and one medal is bet on the game, the combination of winning symbols is determined with only the center (middle) line as the effective line.

  When winning a winning combination is confirmed (step S109: YES), a medal with a predetermined number of payouts according to the type of the winning combination is paid out to the tray 6a (step S110). Alternatively, medals for the number of payouts may be added to the number of credits stored internally. The main control board 20 activates the timer 212 when detecting a game start operation by the start lever 75 in step S102, and any reel is rotating when the timer 212 indicates, for example, a predetermined time of 40 seconds. In this case (step S111), automatic stop control for automatically stopping the reel is performed (step S112). Also, for the reels 101a, 101b, and 101c that have been automatically stopped, a winning determination is made based on the symbols displayed on the respective reels in step S109.

  In this embodiment, the present invention is applied to a slot machine, but the present invention can be similarly applied to other gaming machines such as a pachinko machine.

According to the board case of the gaming machine of the present invention, when taking out the control board on which the ROM included in the gaming machine is taken out, the structure is such that the ROM cover cannot be taken out unless the ROM cover is destroyed. can do.

It is a perspective view showing the appearance structure of the slot machine according to the embodiment. FIG. 6 is a development view showing the internal structure of the slot machine according to the embodiment. FIG. 5 is a side sectional view in which a ROM cover containing a ROM and a control board is fixed in a crimped state to a board case of the slot machine according to the embodiment. 4 is an exploded perspective view of a ROM cover, a ROM, a control board, and a board case of the slot machine according to the embodiment. FIG. FIG. 3 is a CPU circuit diagram of the slot machine according to the embodiment. It is a block diagram of a control system in the slot machine according to the embodiment. 21 is a flowchart showing an outline of a game operation in the slot machine according to the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slot machine 2 Front door 3 Housing | casing 4 Upper panel part 5 Lower panel part 6 Receptacle unit 7 Console 100 Reel unit 101a, 101b, 101c Reel 20 Main control board 20a Through-hole 30 Sub control board
201 CPU 201a Part of CPU circuit 220 Substrate case (crimp case) 221 ROM cover 222 Connecting member 223 Fitting projection 224 Fitting hole C Cutting line

Claims (3)

A control board on which a ROM storing a program for controlling a game is mounted, a ROM cover that covers the ROM, a case body that is fixed to the gaming machine, and a case cover that covers the case body, and the ROM is mounted. A caulking case that houses the control board, and that the case cover is fixed to the case main body in a sealed state with a specific sealing portion, and a board case of a gaming machine comprising:
The ROM cover includes a pair of insertion protrusions connected to both sides of the ROM cover via connecting members,
In the vicinity of the area where the ROM of the control board is mounted, a pair of through-holes are formed through each of the pair of snapping projections.
At locations corresponding to the pair of through holes formed in the control board of the listen over scan body before accommodating the control board where the ROM is mounted, the pair of the pair of fixed fitting projections are fitted respectively A fitting hole is formed,
Each passed through the pair of fixed fitting protrusion into the pair of through holes, and by fitting each of the pair of fitting holes, sealing the ROM, the ROM cover before listen over scan body Fixed in the crimped state,
When retrieving the control board where the ROM is mounted from the crimping case, unless cutting the connecting member in a state releasing the sealed state of the crimping case to break the particular sealing portion of said caulking case A board case for a gaming machine characterized by a structure that cannot be taken out. When the connecting member is made of a conductive material and energized between the pair of fitting protrusions and the ROM sealed with the ROM cover and the caulking case is taken out, the connecting member is cut, and the cut state is electrically The gaming machine board case according to claim 1 , wherein the board case is detected. When a part of the CPU circuit of the gaming machine is disposed between the pair of energized projections that are energized , and the ROM and the control board are removed together with the ROM cover, a part of the CPU circuit is disconnected. claim 1 or 2 gaming machines substrate case described, characterized in that the CPU will not function Te.

Images