JP2009039281A - Fraudulent action preventing structure of game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fraudulent action preventing structure of a game machine, which is capable of preventing fraudulent exchange to a control means mounted on a control board through a socket. <P>SOLUTION: The socket 201 includes ROM re-mounting prevention means 2010 having a slide member 201b capable of closing a fitting hole 201a by being slid and moved toward the fitting hole 201a to which the contact 200a of a ROM 200 is inserted from the horizontal center side of a socket short side part, and a pressing spring 201c for urging the slide member 201b to the fitting hole 201a at all times. When the contact 200a of the ROM 200 is removed from the fitting hole 201a of the socket 201, since the slide member 201b urged by the pressing spring 201d abutting on the contact 200a of the ROM 200 is slid so as to close the fitting hole 201a, the contact of the ROM can not be inserted to the socket 201 from which the contact 200a of the ROM 200 is removed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a fraud prevention structure for gaming machines such as pachinko and pachislot machines.

Conventionally, on a control board of a gaming machine such as a pachinko machine or a pachislot machine, a control means (hereinafter simply referred to as a ROM) related to the control of the basic operation of the gaming machine such as a ROM, a microcomputer chip, and a cassette ROM is provided. It is mounted via a socket that allows insertion and removal of contacts (foot, pin).
Such a ROM is likely to be a target of fraud because it is involved in the control of, for example, the payout rate and jackpot probability as a basic operation of the gaming machine. In other words, after the game hall (game hall) is installed, the legitimate ROM is removed from the control board, and instead, an illegal ROM in which the control program and control data are rewritten so as to be advantageous to an unauthorized player is attached. There is.
In view of this, there has been proposed a verification device for verifying whether or not the ROM mounted on the control board is a genuine product against illegal ROM replacement (see, for example, Patent Document 1).

JP 7-31737 A

  However, in the method of checking whether or not the ROM is a genuine product using such a collation device, it is necessary to check each gaming machine installed in the amusement hall, which takes time and labor. There is a problem. Further, Patent Document 1 proposes to check the ROM of a gaming machine installed in a game hall by a hall computer connected with such a verification device. When the game is started, the security check process is performed with the same control data stored in the original ROM, and when the game is started, the program is programmed to perform the process by switching to an unauthorized control program or control data. In such a case, an illegal ROM cannot be found.

  The present invention has been made in view of such circumstances, and provides a fraud prevention structure for a gaming machine capable of preventing unauthorized exchange of control means mounted on a control board via a socket. Objective.

In order to achieve the above object, the invention according to claim 1 is a fraud prevention structure for a gaming machine for preventing unauthorized exchange of control means inserted into and fitted to a fitting hole of a socket on a control board.
The socket is slidably moved toward the fitting hole from the left and right center side of the socket short side part, and the sliding member is always attached toward the fitting hole. And a control means re-mounting prevention means provided with a biasing means for energizing, wherein the control means re-mounting prevention means is in the state in which the contact of the control means is inserted into the fitting hole. The sliding movement of the slide member is regulated by the contact, and once the contact is removed from the fitting hole, the sliding member slides to close the fitting hole. This prevents the control means from being reattached to the socket.

  According to the first aspect of the present invention, once the contact of the control means is pulled out from the fitting hole of the socket, the control means remounting prevention means for sliding the slide member to close the fitting hole is provided in the socket. Provided. As a result, since the contact of the control means cannot be inserted again into the socket from which the contact of the control means has been removed, unauthorized exchange of the control means can be prevented in advance.

  In order to achieve the above object, according to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the control means remount preventing means is detachably inserted into the slide member via the socket. The release means regulates the slide movement of the slide member so that the contact can be inserted into the fitting hole, and when the release means is pulled out from the slide member, the slide movement restriction of the slide member is restricted. The re-mounting of the control means is prevented by the slide member released and slid toward the fitting hole.

  According to the second aspect of the present invention, the release means inserted into the slide member through the socket so as to be able to be pulled out can regulate the sliding movement of the slide member so that the contact can be inserted into the fitting hole. It has become. When the release means is pulled out from the slide member, the slide movement restriction of the slide member is released, and the control means is not remounted by the slide member slid toward the fitting hole. Thus, in addition to the operation and effect of the first aspect of the invention, the control means can be easily remounted by simply inserting the contact of the control means into the fitting hole of the socket and then removing the release means. Can be prevented.

  According to the gaming machine fraud prevention structure of the present invention, once the contact of the control means is pulled out from the socket, the slide member closes the fitting hole for inserting the contact, and the control means is remounted. Since the control means remounting prevention means for preventing is provided in the socket, it is possible to prevent unauthorized replacement of the control means.

  Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings, taking a slot machine (pachislot machine) as an example. FIG. 1 is a front view of the slot machine, FIG. 2 is a front view showing the internal structure of the slot machine with the front door opened, and FIG. 3 is an exploded perspective view of the internal structure of the slot machine. It should be noted that “left” and “right” follow the direction seen from the player.

  The configuration of the slot machine will be described. As shown in FIGS. 1 to 3, the slot machine 1 includes a rectangular box body (so-called cabinet, illustrated in FIGS. 2 and 3) 2 having an open front surface, and slide hinges 3 and 3 on the housing 2. And a front door (so-called front mask) 4 of a right opening (left hinge) attached so as to be openable and closable.

As shown in FIG. 2, the housing 2 includes a wooden upper plate portion 2a, left and right side plate portions 2b and 2c, a bottom plate portion 2d, and a back plate portion 2e.
A main control board 20 on which electronic components such as a CPU (microcomputer), ROM, and RAM for centrally controlling the main operations of the slot machine 1 are mounted in the board case 21 is located above the back plate 2e in the housing 2. It is attached in a sealed state. The details of the main control board 20 to which the present invention is applied will be described later together with the board case 21.

  In addition, an external output terminal for outputting predetermined information data (for example, jackpot, payout number, etc.) from the slot machine 1 to the hall computer is provided above the right side plate portion 2c in the housing 2. A concentrated terminal board 22 is attached.

  A reel unit 100 constituting a variable display device having reels 101a, 101b, and 101c is disposed in the center of the housing 2. The reel unit 100 is placed on the upper surface of a metal frame plate portion 2f supported by the left and right side plate portions 2b and 2c and the back plate portion 2e, and the front door 4 faces the housing 2 side. When closed, the reels 101a, 101b, and 101c on which identification information of a plurality of types of symbols and numbers are drawn are positioned in the display window 51 of the panel surface 50 of the front door 4.

  The reels 101a, 101b, and 101c are rotationally driven by a stepping motor built in each reel, and on the upper surface of the reel unit 100, a spinning device substrate that sends a four-phase drive pulse signal to the stepping motor. (Not shown) is fixedly attached to the substrate case 23 while being internally sealed. The main control board 20 sends rotation drive (excitation) pulse data to the rotation apparatus board, thereby controlling the rotation, braking, and stopping of the reels 101a, 101b, and 101c.

  In the lower side of the reel unit 100, that is, in the center of the upper surface of the bottom plate portion 2d in the housing 2, game media such as medals (hereinafter referred to as medals) inserted into the housing 2 are temporarily stored and necessary. A hopper device 24 is attached as a medal payout device for paying out accordingly. On the right side of the hopper device 24, a sub tank 25 for receiving medals overflowing from the hopper device 24 is attached and fixed. On the left side of the hopper device 24, a main power supply device 26 that receives power supply from the outside and supplies necessary power to the internal device is attached and fixed in a grounded state. The main power supply device 26 incorporates a power supply board corresponding to a so-called switchboard.

Next, the external configuration of the front door 4 will be described.
As shown in FIG. 1, the front side of the front door 4 is integrally formed of hard plastic as a so-called decorative board designed to enhance the visual effect as a “front panel portion” facing the player. Therefore, the upper panel part 5, the lower panel part 6, and the console 7 are substantially divided.

  A panel surface 50 is provided at the center of the upper panel portion 5. A substantially rectangular transparent display window 51 is provided substantially at the center of the panel surface 50, and the player can pass through the display window 51 and the three reel units 100 provided in the housing 2. The reels 101a, 101b, and 101c are visually observed.

  On the upper part and the left and right side parts of the upper panel part 5, there are provided an illumination effect device 52 and effect illumination parts 53a to 53h as illumination means incorporating a light source such as a fluorescent lamp or a high-intensity light emitting diode inside the lens panel. Has been. The lighting effects device 52 and the lighting units 53a to 53h for lighting are turned on or blinking according to the progress of the game, thereby enhancing the visual effect in the game. Further, the lighting effect device 52 as the lighting means functions as a means for notifying the gaming state of the slot machine 1.

  Below the lighting effect device 52, there are a pair of left and right effect sound emitting portions 54a and 54b incorporating speakers 42a and 42b (shown in FIG. 2) for generating sound effects related to the game, and a liquid crystal display effect device 55. It is arranged. The liquid crystal display effect device 55 is an effect device of the slot machine 1 formed by fitting a transparent hard plastic plate or the like, and mainly displays video and game (game) information related to game effects. It has become.

  The lower panel portion 6 is provided with a panel 61 for displaying the design of the appearance character and the like so that the player can recognize the model type of the slot machine 1. Below the panel 61, a sound receiving section 64a, 64b that incorporates a tray unit 62, a medal payout outlet 63 for discharging medals when winning, and speakers 49a, 49b (shown in FIG. 2) for generating effect sound effects. Etc. are arranged. Further, the tray unit 62 is integrally formed with a tray portion 62a for storing medals paid out from the medal payout outlet 63, and is provided with an ashtray member 65 for smoking by the player. .

  In addition, on both the left and right sides of the panel 61, effect lighting units 66a and 66b that incorporate a light source such as a high-intensity light emitting diode are disposed inside the lens panel. The effect lighting units 66a and 66b, like the lighting effect device 52 and the effect lighting units 53a to 53h, are turned on or blinking according to the progress of the game so as to enhance the visual effect in the game. It has become.

  The console 7 is provided with a medal insertion portion 71 and bet buttons 72 and 73 on the upper surface side, and a start lever 74, stop buttons 75a, 75b and 75c, an adjustment button 76, an eject button on the front surface side. 77 and a keyhole 78 are provided.

The medal insertion portion 71 is integrally formed with a medal insertion slot for inserting medals bet on the game into the housing 2.
The bet buttons 72 and 73 are button switches for presenting the number of medals to bet on one game of the slot machine 1. That is, when the bet button 72 is pressed once at the start of the game, one medal is bet on the game from the stored medals, and when the bet button 73 is pressed once. Three medals are bet on the game. Therefore, the bet button 72 is called a “1 bet button”, and the bet button 73 is called a “max bet button” because a maximum number of medals can be bet.

The start lever 74 is a lever switch for instructing the rotation start of the reels 101a to 101c.
The stop buttons 75a, 75b, and 75c are button switches for instructing to stop the rotation of the reels 101a, 101b, and 101c rotated by the start lever 74, and are arranged in parallel corresponding to the arrangement of the reels. ing.
The settlement button 76 is a button switch for instructing the payout of medals bet on the game and instructing the payout of medals internally held by a medal credit means (not shown).

The eject button 77 is a button switch for discharging a clogged medal after the medal is inserted.
The key hole 78 is a key hole used when unlocking the front door 4. When the key is inserted into the key hole 78 and a predetermined operation is performed, the front door 4 can be opened. The front door 4 is automatically locked when it is closed to the housing 2 side.

Next, the back surface structure of the front door 4 will be described.
As shown in FIG. 2, a sub-control board 40 formed of an electric circuit board is made of a transparent hard synthetic resin at a position on the back side of the front door 4, that is, a back side of the liquid crystal display effect device 55. It is disposed in a state of being sealed by the substrate case 41. The sub-control board 40 controls the display of effect video by the liquid crystal display effect device 55, the effect effect illumination control using the illumination effect device 52 and the effect illumination units 53a to 53h, 66a, 66b, and the effect sound emitting unit 54a, Control mainly related to game effects such as effect sound effect control using 54b, 64a, and 64b is mainly performed. A pair of left and right speakers 42a and 42b are disposed on the left and right sides of the sub-control board 40, that is, on the back side of the effect sound emitting portions 54a and 54b.

  A lamp accommodating a cold cathode fluorescent lamp for irradiating the outer peripheral surfaces of the reels 101a, 101b, and 101c to brightly display a pattern at a position below the sub-control board 40, that is, on the back side of the panel surface 50. The unit 43, an inverter 44 for driving the cold cathode fluorescent lamp, and a central control board 46 sealed by a central control board cover 45 made of transparent hard synthetic resin are attached in a united state.

  A medal sorting device 47 is disposed at a position corresponding to the lower side of the medal insertion portion 71 on the back side of the console 7. The medal sorting device 47 is a device that determines and distributes the suitability of medals inserted from the medal insertion unit 71. Further, the medal sorting device 47 has a built-in medal sensor, and when a normal medal is inserted and the medal sensor detects the medal in a game standby state or the like, a signal indicating acceptance of medal insertion is sent to the central control board. 46 is sent out.

Further, the medal sorting device 47 has a plan view J extending from the back side to the front side for guiding the regular medals discharged from the right side surface of the medal sorting device 47 to the hopper device 24 provided in the housing 2. The letter-shaped guide member 48a, the guide member 48b for guiding the medal (or foreign matter) removed by the medal sorting device 47 to the medal payout port 63 below, and the medal discharged from the hopper device 24 to the medal payout port 63 The guide member 48c to guide is connected.
In addition, a pair of left and right speakers 49a and 49b are disposed at the lower part of the rear side of the front door 4, that is, the position corresponding to the back side of the sound emitting parts 64a and 64b for effects.

Here, with respect to the main control board 20 on which the socket to which the present invention is applied is mounted, and the board case 21 and the bracket 21C that internally seal the main control board 20, the board case 21, the bracket 21C, and the main control board 20 This will be described with reference to FIGS.
4 is a perspective view of the substrate case 21 and the bracket member 21C in the same example, and FIG. 5 is an exploded perspective view of FIG.

  As shown in FIGS. 4 and 5, the substrate case 21 is an upper lid type, and includes an inner box 21A and an outer box 21B formed of a transparent hard synthetic resin (for example, ABS resin).

  As shown in FIG. 5, the upper portion of the inner box 21 </ b> A has a pair of left and right engaging claws 21 </ b> A <b> 1 extending toward the outer box 21 </ b> B so as to be used when engaging with the outer box 21 </ b> B, A plurality of insertion portions 21A2 into which cylindrical caulking caps (not shown) for caulking and coupling 21A and the outer box 21B are inserted are provided. In addition, a plurality of hinge portions 21A3 extending downward are formed at the lower portion of the inner box 21A so as to be used when engaging with the outer box 21B. Further, a positioning pin (not shown) facing the main control board 20 is provided to project from the right part of the inner box 21A so as to position the upper right part of the four corners of the main control board 20.

  As shown in FIG. 5, a pair of left and right projections 21B1 with which the locking claws 21A1 of the inner box 21A are engaged, and a caulking cap that crimps and joins the inner box 21A and the outer box 21B are formed on the upper part of the outer box 21B. A plurality of insertion portions 21B2 into which (not shown) are inserted are provided. In addition, an engaging portion (not shown) with which the hinge portion 21A3 of the inner box 21A is engaged is provided at the lower portion of the outer box 21B. A plurality of openings 21 </ b> B <b> 3 each opened for connector connection are provided on the left and right sides of the outer box 21 </ b> B. Further, a screw groove is formed on the left side of the outer box 21B on the surface facing the main control board so that screws (not shown) for fixing the upper left and lower left of the four corners of the main control board 20 are screwed together. There are provided two cylindrical fixing portions 21B4, and a protruding portion (not shown) protruding leftward so as to be inserted into the left-side opening 21C1 of the bracket member 21C. . In addition, in the right part of the outer box 21B, a pair of upper and lower insertions in which a locking part 21B5 to which the locking claw part 21C2 of the bracket member 21C is locked and a pair of upper and lower positioning pins 21C3 of the bracket member 21C are inserted. Hole 21B6 and a plurality of insertion portions 21C7 into which caulking caps (not shown) for caulking and coupling outer box 21B and the bracket member are provided.

  As shown in FIG. 5, the bracket member 21 </ b> C is an attachment member for attaching the substrate case 21 to the back plate portion 2 e of the housing 2, and like the substrate case 21, a transparent hard synthetic resin (for example, ABS) Resin). A rectangular opening 21C1 into which the protruding portion of the outer box 21B is inserted is provided on the left portion of the bracket member 21C. When attaching the outer claw portion 21B and the locking claw portion 21C2 extending toward the outer box 21B side (front side) so as to be locked to the locking portion of the outer box 21B, on the right side of the bracket member 21C And a pair of upper and lower positioning pins 21C3 projecting toward the outer box 21B (front side) and a caulking cap (not shown) for caulking and coupling the outer box 21B and the bracket member 21C are inserted. A plurality of cylindrical insertion portions 21C4 are formed uniformly. Further, two screw holes 21C5 for screwing and fixing the bracket member 21C to the back plate portion 2e are formed in the left and right portions of the back plate portion of the bracket member 21C (however, in the figure, In that case, only the left side is shown).

  Then, with a caulking cap (not shown) arranged at a predetermined position of the inner box 21A or the outer box 21B, the locking claw portion 21A1 of the inner box 21A is locked to the locking portion 21B1 of the outer box 21B, and the inner box 21A When the hinge portion 21A3 is engaged with an engaging portion (not shown) of the outer box 21B, a substrate case 21 that is caulked and joined by a caulking cap is formed (see FIG. 4). Furthermore, with a caulking cap (not shown) disposed at a predetermined position of the board case 21 or the bracket member 21C, a not-shown protruding portion of the board case 21 (outer box 21B) is inserted into the opening 21C1 of the bracket member 21C, and The locking claw portion 21C2 of the bracket member 21C is locked to the locking portion 21B5 of the board case 21 (outer box 21B), and the positioning pin 21C3 of the bracket member 21C is inserted into the insertion hole 21B6 of the board case 21 (outer box 21B). When inserted, as shown in FIG. 4, the substrate case 21 (outer box 21 </ b> B) and the bracket member 21 </ b> C are integrated with the caulking cap. As a result, destruction of the substrate case 21 and opening of a gap are prevented, and a trace is left when unauthorized access to the substrate case 21 is performed.

As shown in FIG. 5, the main control board 20 electrically connects a microcomputer chip (hereinafter referred to as ROM) 200 as control means for controlling the operation of the slot machine 1, and the main control board 20 and the ROM 200. And a plurality of connectors 202 for communication and communication with the sub-control board 40 and components, and other electronic components (not shown).
Reference numeral 203 in the figure is a board protection member having a flange formed so as to close the gap between the main control board 20 and the connector 202, and the wire inserted from the opening 21B3 contacts the main control board 20. To prevent it.

The socket 201 will be described with reference to FIGS.
6A is a plan view of the socket 201 in the same example, FIG. 6B is a plan sectional view showing the internal structure of the socket 201 in the same example, and FIG. 7A is a plan view in FIG. A cross-sectional view of the socket 201 before the ROM is mounted in the cross section taken along the line AA, FIG. 5B is a cross-sectional view of the socket 201 after the ROM is mounted, and FIG.

  As shown in FIG. 6A, a plurality of fitting holes 201a into which contacts 200a of the ROM 200 (shown in FIG. 7B) are inserted and mounted are formed in the left and right long sides of the socket 201. At the back of these fitting holes 201a, there are spring and conductive metal contacts (not shown) that are in contact with the contacts 200a of the ROM 200 inserted into the fitting holes 201a and penetrate downward. ) Is arranged.

  Furthermore, inside the socket 201, as shown in FIG. 6 (b), the fitting hole 201a can be closed by slidingly moving from the left and right center side of the socket short side portion toward the right and left fitting holes 201a. ROM remounting as control means remounting preventing means including a pair of left and right slide members 201b and a pressing spring 201c as a biasing means that constantly biases the slide member 201b toward the fitting hole 201a. Prevention means 2010 is provided. One end portion of the push spring 201c is engaged with the left and right center side of the socket 201, and the other end portion is engaged with the slide member 201b.

  Further, as shown in FIG. 6B, the socket 201 has a release means for positioning the slide member 201b on the left and right center side of the socket short side so as not to block the fitting hole 201a. The insertion pin 201d is provided so as to be freely inserted and removed. When the insertion pin 201d is inserted into the slide member 201b via the socket 201, the contact 200a of the ROM 200 is inserted and attached to the fitting hole 201a as shown in FIG. Is possible. Then, when the insertion pin 201 is extracted from the slide member 201b in this state, that is, in a state where the contact 200a of the ROM 200 is inserted into the fitting hole 201a, as shown in FIG. 7B, the slide member 201b. Slides from the left and right center side of the socket toward the fitting hole 201a, and comes into contact with the contact 200a of the ROM 200.

  7B, when the contact 200a of the ROM 200 is extracted from the fitting hole 201a of the socket 201, the slide member 201b that has been in contact with the contact 200a by the pressing spring 201 changes the fitting hole 201a. Slide to close. That is, the ROM remount prevention means 2010 is configured such that the sliding movement of the slide member 201b is restricted by the contact 200a when the contact 200a of the ROM 200 is inserted into the fitting hole 201a. Once the contact 200a is extracted from the fitting hole 201a, the slide member 201b slides to close the fitting hole 201a. Thereby, the contact 200a of the ROM 200 or another contact of the ROM 200 having the same mode (number of pins) as the contact 200a of the ROM 200 can be reinserted into the socket 201 from which the contact 200a of the ROM 200 is extracted. Therefore, illegal ROM exchange can be prevented in advance.

Note that the slide member 201b is configured to close the row of fitting holes 201a provided in one long side portion of the ROM 201, but is not limited to this, and is provided in a row provided in the long side portion. A part of the fitting hole 201a may be closed. Furthermore, it is not necessary to provide two slide members 201b, and one slide member 201b may be provided. Further, the biasing means is not limited to the push spring, and a winding spring or a leaf spring may be used. Then, the slide member may be horizontally rotated by a winding spring to close the fitting hole 201a.
The ROM 200 is a microcomputer chip here, but is not limited to this, and may be a ROM alone or a ROM cassette.

As described above, according to the gaming machine fraud prevention structure of the present invention, once the contact 200a of the ROM 200 is once extracted from the fitting hole 201a of the socket 201, the slide member 201b slides and the fitting hole 201a is moved. The ROM 201 is provided with a ROM remount prevention means 2010 for closing the socket 201. Thus, since the contact 200a of the ROM 200 cannot be inserted again into the socket 201 from which the contact 200a of the ROM 200 has been once extracted, it is possible to realize unauthorized prevention of ROM replacement at a low cost.
In addition, according to the present invention, the sliding movement of the slide member 201b is regulated by the insertion pin 201d inserted in the slide member 201b through the socket 201 so as to be extractable, and the contact 200a is inserted into the fitting hole 201a. Can be done. When the insertion pin 201d is removed from the slide member 201b, the slide movement restriction of the slide member 201b is released, and the ROM is prevented from being remounted by the slide member 201b slid and moved toward the fitting hole 201a. It will be. As a result, it is possible to easily prevent the ROM from being mounted again simply by inserting the contact 200a of the ROM 200 into the fitting hole 201a of the socket 201 and then removing the insertion pin 201d.

It is a front view of a slot machine. It is the front view which showed the internal structure of the slot machine in the state which open | released the front door. It is a disassembled perspective view of the internal structure of a slot machine. It is a perspective view of the board | substrate case and bracket member in the example. FIG. 5 is an exploded perspective view of FIG. 4. (A) is the top view of the socket in the example, (b) is the plane sectional view which showed the internal structure of the socket in the example. 6A is a cross-sectional view of the socket before the ROM is mounted in the cross section taken along the line AA in FIG. 6B, FIG. 6B is a cross-sectional view of the socket after the ROM is mounted, and FIG. It is sectional drawing of a back socket.

Explanation of symbols

1 ... Slot machine (game machine)
20 ... main control board 200 ... ROM (control means)
200a ... contact 201 ... socket 201a ... fitting hole 201b ... slide member 201c ... push spring (biasing member)
201d ... Insertion pin (release means)
2010: ROM remount prevention means (control means remount prevention means)

Claims (2)

In the fraud prevention structure for gaming machines to prevent unauthorized replacement of the control means inserted into the fitting hole of the socket mounted on the control board,
The socket is slidably moved toward the fitting hole from the left and right center side of the socket short side part, and the sliding member is always attached toward the fitting hole. A biasing means for biasing, and a control means re-mounting prevention means comprising:
The control means remount prevention means is configured such that, when the contact of the control means is inserted into the fitting hole, the sliding movement of the slide member is restricted by the contact. At the same time, once the contactor is pulled out from the fitting hole, the sliding member slides to close the fitting hole, thereby preventing re-mounting of the control means to the socket. Structure for preventing illegal acts of gaming machines.   The control means re-mounting prevention means is configured such that the sliding means can be inserted into the fitting hole by restricting the sliding movement of the slide member by the release means inserted into the slide member through the socket so as to be removable. In addition, when the release means is pulled out from the slide member, the slide movement restriction of the slide member is released, and the control means is prevented from being remounted by the slide member slid toward the fitting hole. The structure for preventing illegal acts of a gaming machine according to claim 1, wherein

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