JP5005301B2 - Slot machine - Google Patents

Description

  The present invention relates to a slot machine as a gaming machine, and in particular, a door for transferring operation signals of operation units such as a start switch and a stop switch to a control board on a housing side on the back side of a front door constituting a gaming surface. It relates to measures to prevent fraud when attaching a relay board.

  Generally, in a slot machine, a reel device having a plurality of rotating reels and a control board for controlling a game operation are arranged in a housing, and a front door that constitutes a game surface is formed in a front opening of the housing. It is attached. Further, on the front side of the front door, there are provided a reel display window through which each rotary reel of the reel device can be seen through, and operation units such as a start switch and a stop switch related to the rotation of each rotary reel of the reel device. A door relay board for transferring the operation signal of the operation unit to the control board is attached to the back side of the front door.

  Conventionally, in this type of slot machine, as a countermeasure for preventing unauthorized actions such as replacement of ROM, which is a mounted product of the control board, the control board is a box-like board composed of an upper case and a lower case. Various so-called sealing structures that are housed in a case and prohibit the opening of the substrate case have been proposed and put into practical use. For example, in Patent Document 1, a plurality of connecting portions for connecting an upper case and a lower case are formed on the peripheral portion of the upper case of a substrate case, and at one connection, at least one connecting portion is used for one way. Disclosed inseparably by fasteners such as screws, rivets or pins. According to this sealing structure, in order to tamper with the control board, it is necessary to destroy the connecting portion or its surroundings, and if the tampering is performed, a trace of destruction remains. It is possible to prevent or prevent unauthorized modification of.

The control board is usually provided with a connector for receiving a signal from another board (for example, a relay board or an electrical board) provided in the slot machine or sending a signal. For this reason, an opening is provided in the upper case of the board case for storing the control board so as to face the connector, and the cable side connector is connected to the board side connector through the opening. . In this case, an unauthorized player or the like removes the cable-side connector and connects an unauthorized device to the board-side connector to input an unauthorized signal to the control board housed in the board case. There is a risk that an illegal act of illegally acquiring game media may be performed. In order to prevent such illegal acts, for example, as disclosed in Patent Document 2, after connecting the connector on the cable side to the connector on the control board side, a connector cover that covers both the connectors is provided. Proposals have been made in which a protrusion is formed on the connector cover to engage with a connector on the control board side or a connector on the cable side so that it is difficult to remove the connector cover attached to the board case so as to cover both connectors. Incidentally, in Patent Document 3, even if a bonus flag is established by internal lottery, the bonus flag is stocked for the time being, and so-called stock in which gameability is enhanced by maintaining a predetermined number of games in a state where the bonus cannot be established. A slot machine having a function is disclosed.
Japanese Patent No. 2889529 JP 2006-34784 A JP 2004-24537 A (page 7)

  However, in the conventional slot machine, the door relay board attached to the back side of the front door is connected to the control board on the housing side via a cable and is more easily accessible than the control board on the housing side. Nevertheless, it is the actual situation that it is mounted in an exposed state without being stored in the storage case. For this reason, by disconnecting the cable connected to the door relay board and connecting an unauthorized device to this cable, an illegal signal is input to the control board housed in the board case to illegally acquire game media There is a risk of cheating.

  Therefore, in order to prevent such illegal acts, the door relay board is housed in a board case such as an upper case and a lower case, like the control board, and the opening of the board case is prohibited by a sealing structure. It is conceivable to configure as follows. However, the mounting location of the door relay board is the lower edge of the reel display window on the back side of the front door. When the door relay board is mounted in the board case at this mounting location, the structure including the board case is included. Since the overall thickness increases, it is necessary to move the internal structure of the reel device etc. to the back of the housing in order to avoid interference with the substrate case, which limits the degree of freedom in designing the internal structure, There is a problem that the dimension between the reel display window of the front door and the rotating reel of the reel device is increased accordingly.

  The present invention has been made in view of such various points, and the object of the present invention is to take appropriate measures against fraud against the door relay board attached to the back side of the front door, thereby mounting the reel device. Effectively prevent illegal acts of illegally acquiring gaming media by removing the cable connected between the door relay board and the control board on the housing side from the door relay board without moving it to the inside of the body. It is intended to provide a possible slot machine.

In order to solve the above-mentioned problem, the invention according to claim 1 is a slot machine in which a variable display device having a plurality of variable display units (for example, a reel device having a rotating reel) in a housing and control for controlling a game operation are provided. A front door that constitutes a game surface is attached to the front opening of the housing, and a display window through which the variable display of the variable display device can be seen through is provided on the front side of the front door. , An operation unit related to the variable display of the variable display device is provided, and a door relay board for transferring an operation signal of the operation unit to the control board is attached to the back side of the front door. Assuming Then, a plurality of connectors are mounted on the surface opposite to the mounting surface of the door relay board along the lower side, and the entire surface opposite to the mounting surface of the door relay board including the plurality of connectors is covered. A relay board cover is provided, and the relay board cover is formed by a substantially horizontally long rectangular plane facing the door relay board, a flange formed over substantially the entire circumference of the plane, and a fastener at a place to be arranged. A configuration is provided that includes a fixing portion for fixing, and trace display means for displaying the trace when the fixed state of the relay board cover is once released. In addition, a plurality of notches are provided in the flange portion of the relay board cover so as to pass cables connected to the connectors at portions facing the connectors, and the width dimensions of the notches are set to the corresponding cables. The structure is set to be smaller than the head length of the connector on the side.

In this configuration, the entire surface opposite to the mounting surface of the door relay board attached to the back side of the front door is covered with the relay board cover including a plurality of connectors mounted thereon, and this relay board cover Is fixed at the fixing part, and once the fixed state is released, the trace is displayed by the trace display means, so the cable connected to the connector on the door relay board side is removed and the control board on the chassis side is illegal It is possible to prevent or prevent fraudulent acts such as inputting a simple signal. Moreover, the door relay board remains attached to the back side of the front door as before, and the entire surface opposite to the mounting surface of the door relay board is only covered with the relay board cover. In order to avoid interference, it is not necessary to move the variable display device on the housing side to the back in the housing. Moreover, since the number of parts is small, the cost can be reduced and it is effective in implementation. Furthermore, the plurality of connectors mounted on the door relay board are provided along the lower side of the door relay board, and the cable is passed through the notch provided in the flange part of the relay board cover so as to face each connector. In addition, the cable can be easily wired, and the width dimension of each notch is set smaller than the head length of the corresponding cable-side connector. In the state of covering, the connector on the cable side cannot be pulled out through the notch, and the effect of preventing fraud can be further enhanced.

  Here, as a fraudulent act against a slot machine, in particular, a slot machine having a so-called stock function disclosed in Patent Document 3 exemplified in the background art section, a large number of games are digested in a short time without a player's operation. By connecting an unauthorized device having a function to do so, the stock game may be digested into a so-called flag release state, and a game may be illegally obtained by playing a game from this release state. In the case of a slot machine, a single game is completed by inserting a medal, operating a start switch, and operating a stop switch. Therefore, in order to digest the number of games in a pseudo manner, it corresponds to the player's operation. It is necessary to illegally input all of the medal insertion signal, the start switch operation signal, and the stop switch operation signal. Therefore, the door relay board receives at least the operation signal of the start switch, the operation signal from the switch board connected to the plurality of stop switches, and the medal insertion signal from the selector as the operation signal of the operation unit. In the case of transmission to the control board, in order to prevent the above-mentioned fraudulent acts, in addition to taking countermeasures against fraudulent acts on the door relay board in response to the output signal of the door relay board, the door relay board Of these three input signals, it is necessary to take measures to prevent fraud even for a substrate that outputs at least one signal.

In view of this point, the invention according to claim 2 is the slot machine according to claim 1, and in particular, the door relay board includes a plurality of operation units (for example, a plurality of operation units provided to complete one game operation). for those transfers an operation signal from the start, such as switches or stop switches) to the control board, one of the plurality of operation portions, a cover member for covering the transmitting section in at least one operating unit, the cover member, the A fixing part for fixing to the arrangement place with a fastener and a trace display means for displaying the trace when the fixed state of the cover member is once released are provided. In this configuration, of the plurality of operation units for completing one game operation, the transmission unit of one operation unit is covered by the cover member, and the cover member is fixed by the fixing unit, and the fixing is performed. Since the trace is displayed by the trace display means once the state is released, it is possible to prevent or prevent an illegal signal from being input to the control board through the door relay board from the transmission section of the operation section.

  According to a third aspect of the present invention, in the slot machine according to the second aspect, the cover member covers a switch substrate connected to a plurality of stop switches for individually stopping the variation display of each variation display unit of the variation display device. Make things. In this configuration, the switch board as the transmission part of the stop switch is covered with the cover member, and it is possible to prevent an unauthorized signal from being input from the switch board through the door relay board to the control board.

  According to a fourth aspect of the present invention, in the slot machine according to the first aspect, the trace display means of the relay board cover connects the fixing part of the relay board cover to another part of the relay board cover and makes it easy to cut. It is constituted by a weak part formed narrowly. In this configuration, since the trace is less likely to be concealed as compared with the case where the trace of release is simply displayed with a seal seal, the effect of preventing illegal acts can be enhanced accordingly.

  According to a fifth aspect of the present invention, in the slot machine according to the second or third aspect, the trace display means of the cover member is connected to the other part of the cover member and easily cuts the cover member fixing portion. It is constituted by a fragile part formed narrowly. Also in this case, as in the case of claim 3, the effect of preventing fraud can be enhanced.

  The invention according to claim 6 provides a preferable form of a fastener or the like in the slot machine according to claim 4 or 5. That is, the fastener is constituted by a one-way screw that can be operated only in the screwing direction, the fixing portion is substantially cylindrical having a stepped hole into which the one-way screw can be inserted, and the weak portion is defined as 1 A pair is provided for each of the fixed portions. In this configuration, the fixed portion of the relay board cover or the cover member can be easily fixed in a non-separable manner by a one-way screw as a fastener, and a pair of weak portions are each provided with a nipper or the like to release the fixed state. It is necessary to cut with, and the trace of cutting becomes clear at two places, and the effect of preventing fraud can be further enhanced.

  The invention according to claim 7 is the slot machine according to claim 6, wherein a slit is provided in a portion of the fixed portion sandwiched between the pair of weakened portions, and the inner surface of the large diameter hole portion of the stepped hole of the fixed portion. In addition, the head of the one-way screw and a non-slip portion for preventing slipping are formed. In this configuration, when the relay board cover or cover member is replaced with a new one after cutting the pair of weak parts and releasing the fixed state of the fixed part, the one-way screw is attached from the outer peripheral side of the fixed part with radio pliers or the like. The anti-slip portion bites into the head of the one-way screw when turning and sandwiching it so that the one-way screw can be easily turned.

As described above, according to the slot machine of the present invention, the entire surface opposite to the mounting surface of the door relay substrate mounted on the rear surface side of the front door is covered with the relay substrate cover including the plurality of connectors mounted thereon. And the relay board cover is fixed by the fixing part, and once the fixed state is released, the trace is displayed by the trace display means, so remove the cable connected to the connector on the door relay board side and remove the cable It is possible to prevent an illegal act such as inputting an illegal signal to the control board. Moreover, the door relay board remains attached to the back side of the front door as before, and the entire surface opposite to the mounting surface of the door relay board is only covered with the relay board cover. In order to avoid interference, it is not necessary to move the variable display device on the housing side to the back in the housing, and implementation can be effectively achieved. In addition, each notch provided in the flange part of the relay board cover can be easily wired for the cable connected to the connector mounted on the door relay board, and the width dimension of each notch is compatible. The cable side connector head length is set to be smaller than the cable side connector head so that the cable side connector cannot be pulled out through the notch when the relay board cover covers the door relay board. It can be further increased.

  In particular, in the invention according to claim 2, of the plurality of operation units for completing one game operation, the transmission unit of one operation unit is covered by the cover member, and the cover member is fixed by the fixing unit. Since the trace is displayed by the trace display means once the fixed state is released, it is possible to prevent an unauthorized signal from being input to the control board through the door relay board from the transmission part of the operation part, The effect of preventing fraud can be enhanced.

  In the invention which concerns on Claim 4, since the trace at the time of the fixed state of a relay board cover being cancelled | released is hard to be concealed, the prevention effect of cheating can be heightened that much.

  In the invention which concerns on Claim 5, since the trace when the fixing state of a cover member is cancelled | released is hard to be concealed, the prevention effect of cheating can be heightened to that extent.

  In the invention according to claim 6, the fixing portion of the relay board cover or the cover member can be easily fixed in a non-separable manner by a one-way screw as a fastener, and a pair of weak portions are provided to release the fixing state. Since it is necessary to cut each, and the trace of cutting becomes clear in two places, the effect of preventing fraud can be further enhanced.

  In the invention according to claim 7, when the relay board cover or the cover member is replaced with a new one after cutting the pair of weak parts and releasing the fixed state of the fixed part, the outer peripheral side of the fixed part with radio pliers or the like Since the non-slip portion can bite into the head of the one-way screw when the one-way screw is sandwiched and turned, the one-way screw can be easily turned, so that it is possible to contribute to smooth replacement work.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments that are the best mode for carrying out the present invention will be described below with reference to the drawings.

  1 to 3 show a slot machine according to an embodiment of the present invention. Reference numeral 1 denotes a front door that constitutes a front portion that is a gaming surface of the slot machine. It is attached to the opening so that it can be opened and closed with the left side as the hinge side from the front side.

  An upper lamp 3, a liquid crystal display unit 4, and two left and right speakers 5 a and 5 b are provided on the upper portion of the front door 1, and a central panel 6 and a central operation panel 7 are provided in the central portion of the front door 1. ing. The liquid crystal display unit 4 displays a character or the like on the screen in accordance with the progress of the game and performs a game effect. The central panel 6 is made of a transparent synthetic resin plate such as an acrylic plate, a tempered glass plate, or the like on the back surface by silk screen printing. The central panel 6 is transparent without silk screen printing. A rectangular reel display window 8 is formed as it is. The central operation panel 7 is provided with a medal slot 11, a start switch 12, three stop buttons 13, 13, 13 as a stop switch, a max bet button 14, a settlement button 15, and the like. A lower panel 16, a medal payout opening 17, and a medal tray 18 are provided at the lower portion of the lower front door 1.

  As shown in FIG. 2, a reel device 21 as a variable display device is arranged in the housing 2 so as to face the reel display window 8 of the front door 1. This reel device 21 has three rotating reels 22a, 22b, and 22c as side-by-side variable display portions that rotate independently, and a plurality of symbols (figure) are provided on the outer peripheral surfaces of these rotating reels 22a to 22c. In total, nine symbols, three for each of the rotating reels 22a to 22c, are visible to the outside through the reel display window 8 of the front door 1 with the front door 1 closed. Also, on the upper side of the reel device 21 in the housing 2, a main board case 23 that houses a main control board 45 (see FIG. 4) that controls the gaming operation of the slot machine is disposed on the back surface of the housing 2 with an attachment plate 24 interposed. The internal relay board 25 is fixed to the side wall of the housing 2 on the right side of the reel device 21 in the housing 2, and the reel device 21 in the housing 2 is disposed on the right side of the reel device 21 in the housing 2. On the lower side, a hopper device 26 and a power supply unit 27 are arranged.

  On the other hand, as shown in FIG. 3, a sub-board case 31 for housing a sub-control board 30 (see FIG. 4) for controlling the liquid crystal display unit 4 and the speakers 5a and 5b is attached to the back side of the front door 1. In addition, an inner frame panel 32 for attaching an alarm (not shown) for performing various notifications around the reel display window 8 of the central panel 6 is attached. Further, a door relay board 33 is attached from above. A stop button substrate 34 as a switch substrate connected to each stop button 13 is attached to the back side of the front door 1 and a selector 35 for selecting medals inserted from the medal insertion slot 11. The medal payout passage 36 and the inverter board storage case 37 are attached.

  FIG. 4 shows a block configuration of a control system of the slot machine. In this figure, the signal of the start switch 12, the signal of the stop button board 34, the signal of the selector 35 and the like related to the player's game operation are all transferred to the main control board 45 through the door relay board 33. In the main control board 45, a CPU (Central Processing Unit) 38 that controls the gaming operation of the slot machine, a ROM (Read Only Storage Device) 39 that stores information related to the gaming operation, and temporarily related to the gaming operation. A RAM 40 for storing information is mounted.

  The main control board 45 is configured to output a game effect command signal to the sub control board 30. The sub control board 30 receives the liquid crystal display unit 4 and the speaker 5a, based on the command signal. The game effect is executed by operating 5b and the like. Also, from the main control board 45, a signal for starting or stopping rotation is sent to the reel device 21 (specifically, the reel board) through the internal relay board 25 or paid out to the hopper device 26 according to the player's game operation. Send a signal. From the reel device 21, a signal indicating that the reel has stopped or a stop position is transmitted to the main control board 45 through the internal relay board 25. Then, in response to the operation of the start switch 12, the main control board 45 performs lottery by the CPU 38 and rotates the rotary reels 22a to 22c all at once. Thereafter, according to the operation of each stop button 13, the corresponding rotating reels 22 a to 22 c are stopped within a predetermined number of frames according to the result of the lottery and the operation timing of each stop button 13. To control. Further, when a predetermined winning symbol combination stops on the effective winning line of the reel display window 8, a predetermined number of medals as game media are paid out from the payout opening 17.

  In such a slot machine, the main control board 45 having the ROM 39 storing information related to the game operation as a mounted product is most likely to be fraudulent. Further, the slot machine of the present embodiment has a so-called stock function described by exemplifying Patent Document 3 in the background art section, and this type of slot machine is not accompanied by a player's operation as an illegal act. By connecting an unauthorized device with the function of digesting many games in a short time, the stock game is digested to a so-called flag release state, and a medal is obtained illegally by playing a game from this release state Sometimes. Such a fraudulent act is not noticeable because the cable connected to the door relay board 33 or the stop button board 34 attached to the back side of the front door 1 can be pulled out by opening the front door 1 a little. Since it is possible to connect an unauthorized device to the door relay board 33 or the like. In the case of a slot machine, a single game is completed by inserting medals, operating the start switch 12, and operating the stop button 13. Therefore, in order to digest the number of games in a pseudo manner, In response to this, all of the medal insertion (selector 35) signal, the start switch 12 operation signal, and the stop button 13 operation signal need to be input illegally. Therefore, in order to prevent the above-mentioned fraudulent acts, in addition to taking countermeasures against fraudulent acts on the door relay board 33 in response to the output signal of the door relay board 33, the door relay board 3 It is necessary to take measures to prevent fraud even for a substrate that outputs at least one of the input signals.

  In the present embodiment, in consideration of the above, each of the main control board 45, the door relay board 33, and the stop button board 34 has its own countermeasures for preventing illegal acts. The countermeasures will be described sequentially.

  5 and 6 show the main board case 23 used as a countermeasure against fraud against the main control board 45. FIG. In the main board case 23, an upper case 41 and a lower case 42 constitute a rectangular box-shaped case main body 43 as an accommodation space, and a connector 44a is provided in the case main body 43 in addition to the CPU 38, the ROM 39 and the like as described above. , 44b, 44c, 44d are accommodated. An attachment plate 24 for attaching the main board case 23 to the back surface of the housing 2 is fixed to the lower surface of the lower case 42.

  The upper case 41 and the lower case 42 are both made of a synthetic resin such as a transparent or translucent acrylic resin, and one of the two short sides facing each other of the lower case 42 extends outward. The engaging protrusion 46 is inserted into a slit (not shown) provided on the corresponding short side of the upper case 41, and the engaging protrusion 46 serves as a hinge point. The upper case 41 is opened and closed with respect to the lower case 42. Further, six connecting portions 47, 47,... For connecting the upper case 41 and the lower case 42 are formed side by side along the short side on the short side opposite to the open / close hinge point of the upper case 41. Yes. And at the time of one time coupling | bonding, the upper case 41 and the lower case 42 are couple | bonded by the fastener 48 with the at least 1 coupling | bond part 47 so that separation | separation is impossible.

  The fastener 48 is made of a synthetic resin such as acrylic resin like the upper case 41 and the lower case 42, and as shown in an enlarged detail in FIG. 7, a pin portion 52 having a first engagement claw 51 at the tip. A cylindrical head 53 that surrounds the outer periphery of the base end side of the pin portion 52, and a connection that connects the head portion 53 and the base end of the pin portion 52 at two locations across the axis of the pin portion 52. Part 54,54. The first engaging pawls 51 are formed on both sides of an inverted U-shaped groove 55 formed at the tip of the pin portion 52, and are inserted into locking holes 65 described later of the lower case 42. It is easily deformed and easily inserted. On the outer peripheral surface of the head 53, second engaging claws 57 are formed at two positions in the central portion in the axial direction and sandwiching the axial line, respectively, and at the distal end side in the axial direction and in the circumferential direction. However, the third engagement claws 58 are formed at two positions 90 degrees different from the respective second engagement claws 57. Each second engaging claw 57 can be elastically deformed by a U-shaped notch groove 59 formed on the three sides around it, that is, on both the left and right sides and the front end side. The notch grooves 60, 60 formed on both the left and right sides can be elastically deformed. Each connecting portion 54 is narrow and fragile over the entire length, and in particular, has a fragile portion 54 a having a smaller width dimension than other portions at a portion near the head 53.

  On the other hand, as shown in detail in FIGS. 8 and 9, each coupling portion 47 is formed in a cylindrical shape having a bottom portion 47 a into which the head portion 53 of the fastener 48 can be fitted. The length of the head 53 of the fastener 48 is set to be approximately the same as the length in the axial direction. When the head portion 53 of the fastener 48 is shallowly fitted in the coupling portion 13 at two locations sandwiching the axis near the opening on the inner peripheral surface of each coupling portion 47 as shown in FIG. A locking recess 61 for temporary fixing with which each of the third engaging claws 58 is engaged is formed, and the locking recess for temporary fixing is in the center in the depth direction and in the circumferential direction. Each of the second engaging claws 57 is engaged at two positions 90 degrees different from 61 when the head portion 53 of the fastener 48 is fitted in the connecting portion 47 as shown in FIG. An engaging recess 62 for coupling is formed. In addition, a through hole 63 through which the pin portion 52 of the fastener 48 passes is provided in the bottom portion 47a of each coupling portion 47 in the coupled state.

  The lower case 42 is provided with a fastening receiving portion 64 corresponding to each coupling portion 47 of the upper case 41. The fastening receiving portion 64 is of a pedestal type supported on the mounting plate 24, and the pin portion of the fastening receiving portion 64 has a pin portion when the head 53 of the fastener 48 is fitted into the coupling portion 47. 52 is provided with a locking hole 65 that engages the first engaging claw 51 at the distal end in a state of being prevented from coming off, so that the space between the coupling portion 47 of the upper case 41 and the fastening receiving portion 64 of the lower case 42 is provided. Thus, the cases 41 and 42 are connected to each other by the fastener 48 so as not to be separated. When releasing this joint state and opening both cases 41 and 42, if each weak part 54a of the two connection parts 54 and 54 of the fastener 48 is cut | disconnected with a nipper etc., as shown in FIG.10 (b). The head portion 53 of the fastener 48 remains in a state of being fitted into the coupling portion 47 of the upper case 41, and only the pin portion 52 of the fastener 48 passes from the through hole 63 of the coupling portion 47 of the upper case 41 to the lower case 41. The coupling receiving state is released by falling off to the fastening receiving portion 64.

  Further, as shown in FIGS. 5 and 6, the upper case 41 is formed such that both end portions in the longitudinal direction are one step lower than the central portion, and the main control board is disposed at both end portions in the longitudinal direction of the upper case 41. A plurality (four in the figure) of openings 66, 67, 68, 69 are provided so as to face the connectors 44a to 44d mounted on 45, and the main control board 45 side is provided through these openings 66-69, respectively. A cable-side connector (not shown) is connected to each of the connectors 44a to 44d. Here, of the connectors 44a to 44d on the main control board 45 side, the connector 44a is connected to the door relay board 33 on the back side of the front door 1 via the cable 81, and the connector 44b is connected to the front door 1. The connector 44c is connected to the sub-control board 30 housed in the sub-board case 31 on the back side via a cable (not shown), and the connector 44c is connected to the power supply unit 27 in the housing 2 with a cable (not shown). The connector 44d is connected to the internal relay board 25 in the housing 2 via the cable 82.

  The connectors 44a and 44d on the main control board 45 side are provided with connector covers 71 and 72 that cover both the connectors 44a and 44d and the cable-side connector connected thereto, respectively. Both the connector covers 71 and 72 are made of a synthetic resin such as an acrylic resin, and a cutout portion 73 for leading the cable 81 connected to the connector 44 a to the outside is formed on the inner side surface of the connector cover 71. On the other hand, a cutout portion 74 is also formed on the outer side surface of the connector cover 72 for leading out the cable 82 connected to the connector 44d to the outside.

  As shown in detail in FIG. 11, the connector cover 71 is formed so that its opening area is slightly larger than that of the opening 66 of the upper case 41. When the cover 71 is attached to the opening 66, the cover 71 is inserted into the insertion hole 75 provided in the vicinity of the opening 66 of the upper case 41 and the insertion hole 76 provided in the main control board 45, and the insertion hole 76 of the main control board 45 is inserted. A pair of arrowhead-shaped engaging portions 77, 77 extending forward and projecting inwardly or outwardly so as to be engaged with each other are formed, and each of the engaging portions 77 includes an upper case 41 and a lower case. 42 and the engagement state can be released only from the back side of the main control board 45 inside the case main body 43 by releasing the coupling with the main body 43.

  Further, although not shown in detail in the figure, the connector cover 72 is formed so that its opening area is slightly larger than that of the opening 69 of the upper case 41, as in the case of the connector cover 71. When the connector cover 72 is attached to the opening 69 on both sides in the longitudinal direction of the cover 72, it is inserted into the insertion hole provided in the vicinity of the opening 69 of the upper case 41 and the insertion hole provided in the main control board 45, respectively. A pair of arrowhead-shaped engaging portions extending forward and projecting inwardly or outwardly so as to engage with the insertion hole of the main control board 45 are formed. And the lower case 42 are released so that the engaged state can be released only from the back side of the main control board 45.

  FIGS. 12 to 16 show a mounting structure of the relay board cover 84 used as a countermeasure against fraud against the door relay board 33.

  The door relay board 33 is usually mounted on the lower portion of the inner frame panel 32 in an exposed state without being housed in a dedicated case. In the present embodiment, a plurality of door relay boards 33 are mounted on the door relay board 33. The entire surface opposite to the mounting surface of the door relay substrate 33 including the connectors 83a, 83b, 83c, 83d, 83e, 83f, and 83g is covered with the relay substrate cover 84. Here, of the connectors 83a to 83g mounted on the door relay board 33, the connector 83a is connected to the above-described main control board 45 via the cable 81, and the connector 83b is the back side of the front door 1 The stop button substrate 34 is connected via a cable 85a, and the connector 83c is also connected via the cable 85b to the selector 35 on the back side of the front door 1. The connector 83d is connected to the checkout button 15 via the cable 85c, the connector 83e is connected to the start switch 12 via the cable 85d, and the connector 83f is connected to the max bed button 14. The connector 83g is connected to a 1-bet button (not shown) and the cable 85f.

  The relay substrate cover 84 is preferably in a state in which the internal substrate is visible when attached, and is particularly preferably made of a material such as a transparent or translucent synthetic resin. This ensures the transparency of the internal state and produces an effect that can be easily found when an unauthorized modification is made. The relay board cover 84 includes a substantially horizontally long flat surface portion 84a facing the door relay substrate 33, and a flange portion 84b formed over substantially the entire periphery of the flat surface portion 84a. The relay board cover 84 has a flange 87 formed by extending the edge of the flat surface portion 84a so as to cover the entire connector 83a at a portion corresponding to the connector 83a on the door relay board 33 side. Four notches 95a, 95b, 95c, and 95d each having a notched flange 84 are provided at portions corresponding to the four connectors 83a, 83b, 83c, and 83d on the door relay board 33 side, and the cable 81, 85a to 85f are secured. As shown in FIG. 13, the width dimension W1 of the notch 95a is set to be smaller than the head length W2 of the connector 86a on the cable 81 side. The widths of the other notches 95b to 95d are also set smaller than the head length of the connectors 86b to 86d on the cables 85a to 85c side.

  Although not shown in the figure, the door relay board 33 has a setting value change switch for changing the setting value of the slot machine, a stop state setting switch for setting the game in a suspended state when a big hit comes, and a stop state In some cases, an automatic settlement setting switch or the like for setting to automatically pay out credits may be provided. When these switches are provided, it is preferable that the relay board cover 84 is provided with an opening for operating the switch, and it is necessary for the store clerk to remove the relay board cover 84 every time the setting state is changed. Disappears. In addition, when providing an opening for the switch, the fixed part of the switch is configured to protrude from the substrate, the shape of the part is substantially the same as the opening shape of the opening, and the relay around the periphery of the opening It is preferable to provide the wall surface of the substrate cover 84 so as to be lower than the fixed portion of the switch. In particular, it is preferable to provide the wall surface of the relay substrate cover 84 on the periphery of the opening so as to be close to the door relay substrate 33. In this case, it is possible to prevent an illegal act to be performed inside the relay board cover 84 by entering a foreign substance through a gap in the opening generated when the switch is pressed down, and the operation is facilitated. Further, an openable / closable door structure may be provided in the opening corresponding to the switch of the relay board cover 84.

  The relay board cover 84 is fixed to the inner frame panel 32 at two locations on the left and right sides on the upper edge side by normal screws 88, and protrudes downward from the flange portion 84b at the two left and right locations on the lower edge side. It is fixed by a one-way screw 90 with a fixing part 89 formed in this way. As shown in enlarged detail in FIG. 17, the fixing portion 89 has a cylindrical shape having a stepped hole 91 into which the one-way screw 90 can be inserted, and the fixing portion 89 and the flange portion 84 b of the substrate cover 84 are connected to each other. A pair of fragile portions 92 and 92 that are a pair of narrow connecting portions for connecting the both and making it easy to cut the fixing portion 89 from the relay board cover 84 are formed therebetween. Further, the fixing portion 89 is provided with a slit 93 at a portion sandwiched between the pair of weakened portions 92, 92, and the head of the one-way screw 90 is formed on the inner surface of the large-diameter hole portion of the stepped hole 91. A pair of saw blade-like non-slip portions 94 and 94 for preventing slippage with the portion 90a are formed.

  As shown in detail in FIG. 18, the one-way screw 90 is characterized by the shape of an engaging groove 90b that engages with the screw driver of the head 90a. The screw driver is provided so as to be operable only in the screwing direction. ing. That is, of the wall surfaces of the engagement groove 90b, the wall surfaces 90c and 90c that contact the screw driver when screwed by the screw driver intersect the groove bottom surface 90d at a substantially right angle, but the wall surfaces that contact the screw driver when loosening the screw. 90e and 90e are inclined with respect to the groove bottom surface 90d. Therefore, once the fixing portion 89 and thus the substrate cover 84 are fixed by the one-way screw 90, the relay substrate cover 84 cannot be separated unless both the pair of weak portions 92 and 92 are cut.

  19 to 21 show a mounting structure of the button board cover 100 as a cover member used as a countermeasure against fraud against the stop button board 34.

  The stop button board 34 is arranged in a state of being connected to the three stop buttons 13, 13, 13 on the back side of the central operation panel 7, and the connector 101 is mounted on the front side of the stop button board 34. Yes. The button substrate cover 100 is for covering the stop button substrate 34, and is formed over a substantially horizontally long flat surface portion 100a facing the rear surface of the stop button substrate 3 and the entire periphery of the flat surface portion 100a. The flange portion 100b extends to the front of the stop button substrate 34, that is, to the vicinity of the back surface of the central operation panel 7. A first fixing portion 103 for fixing to the central operation panel 7 with a normal screw 102 and a second fixing section for fixing to the central operation panel 7 with a one-way screw 104 are provided on the left and right side edges of the button board cover 100, respectively. The fixed portion 105 is formed.

  As shown in an enlarged detail in FIG. 22, the second fixing portion 105 has a cylindrical shape having a stepped hole 106 into which the one-way screw 104 can be inserted, and the second fixing portion 105 and the button board cover. Between the two flange portions 100b, there are formed weak portions 107a and 107b, which are a pair of narrow connecting portions for connecting the two and making it easy to cut the second fixing portion 105 from the button board cover 100. Yes. Further, the second fixing portion 105 is provided with a slit 108 at a portion sandwiched between the pair of weak portions 107a and 107b, and an inner surface of the large-diameter hole portion of the stepped hole 106 is provided with a one-way screw. A pair of saw blade-shaped non-slip portions 109 and 109 for making it difficult to slip with the head 104 a of 104 are formed.

  Although the one-way screw 104 is not shown in detail in the drawing, like the one-way screw 90 (see FIG. 18) described above, the one-way screw 104 is characterized by the shape of the engagement groove 104b that engages with the screw driver of the head 104a. The screwdriver is provided so that it can be operated only in the screwing direction. Once the second fixing portion 105 and thus the button substrate cover 100 are fixed by the one-way screw 104, the button substrate cover 100 cannot be separated unless the pair of weak portions 107a and 107b are cut together.

  Next, the door relay board will be described in order to explain the action and effect of the above embodiment, in particular, the action and effect on the prevention measures against fraud against the door relay board 33 and the stop button board 34 attached to the back side of the front door 2. 33, the entire surface opposite to the mounting surface of the door relay board 33, including the connectors 83a to 83g, which are mounted products, is covered by the relay board cover 84. Since the fixing portions 89 formed at the two positions on the edge side are fixed so as not to be separated by the one-way screw 90, the cable 81 is removed from the connector 83a on the door relay board 33 side after the relay board cover 84 is illegally removed. Unauthorized acts such as inputting an unauthorized signal to the main control board 45 on the housing 3 side can be prevented.

  Moreover, the door relay board 33 remains attached to the inner frame panel 32 on the back surface side of the front door 1 as in the past, and the entire surface opposite to the mounting surface of the door relay board 33 is relay board. Since it is only covered with the cover 84, it is not necessary to move the reel device 21 on the housing 2 side to the back in the housing 2 in order to avoid interference with the door relay substrate 33 and the relay substrate cover 84. Implementation can be effectively achieved.

  Further, the relay board cover 84 has notches 95a, 95b, 95c, and 95d for wiring the cables 81, 85a to 85f, respectively, at portions corresponding to the four connectors 83a to 83d on the door relay board 33 side. However, the width dimensions of the cutout portions 95a to 95d are set to be smaller than the head lengths of the connectors 86b to 86d on the cable 81, 85a to 85c side passing therethrough. The cables 81, 85a to 85c cannot be removed from the connectors 83a to 83d on the door relay board 33 side covered with 84 and pulled out from the notches 95a to 95d, and the effect of preventing fraud can be enhanced. Each of the cables 85d, 85e, and 84f passes through a notch 95a having a width that is larger than the head length of the connector, but the connector 83e on the door relay board 33 side to which these cables 85d to 85f are connected. ˜83g are provided on the side opposite to the notch 95a of the connector 83a, so that the cables 85d to 85f are not removed from the connectors 83e to 83g on the door relay board 33 side covered with the relay board cover 84. Can not.

  On the other hand, at the time of maintenance of the door relay board 33, the pair of weak parts 92, 92 that connect the fixing part 89 and the flange part 84b of the relay board cover 84 at each fixing part 89 of the relay board cover 84 are nippered. The relay board cover 84 can be removed by cutting the fixing portion 89 from the relay board cover 84 by cutting with a method such as the above, so that the maintenance work is not hindered and the implementation can be easily performed. . In order to attach a new relay board cover 84 after removing the relay board cover 84, it is necessary to remove the fixing portion 89 remaining on the inner frame panel 32 on the back side of the front door 1 together with the one-way screw 90. 89 is provided with a slit 93, and a pair of saw blade-shaped non-slip portions 94, 94 are formed on the inner surface of the large-diameter hole portion of the stepped hole 91 of the fixing portion 89. When the one-way screw 90 is turned from the outer peripheral side of the part 89, each of the anti-slip portions 94 can bite into the head 90a of the one-way screw 90 and the one-way screw 90 can be easily turned. This is advantageous for the purpose.

  The stop button board 34 is covered with the button board cover 100, and the button board cover 100 is not only fixed by the normal screws 102 at the first fixing portions 103 at the left and right side edges, but also left and right. Since the second fixing portions 105 on both side edges are fixed so as not to be separated by the one-way screws 104, the button board cover 104 is illegally removed and an illegal signal is sent from the stop button board 34 side through the door relay board 33. 45 can be prevented, and the effect of preventing fraud can be further enhanced.

  In addition, since the second fixing portion 105 has the same configuration as the fixing portion 89 of the relay board cover 84, it does not hinder maintenance work and can be easily implemented. There are also effects such as.

  In addition, this invention is not limited to the said embodiment, A various other form is included. For example, in the above embodiment, when the relay board cover 84 is fixed to the inner frame panel 32 of the front door 1, the left and right portions on the upper edge side of the relay board cover 84 are fixed with the normal screws 88, and the left and right sides on the lower edge side are fixed. The fixing portions 89 and 89 formed at the two locations are fixed by the one-way screws 90, respectively, but in the present invention, as shown in FIG. 23, a plurality of fixing portions are respectively attached to the lower edge and the left and right side edges of the relay board cover 84. .. Are formed, and at the time of one-time fixing, the left and right two portions on the upper edge side of the relay board cover 84 are fixed with ordinary screws 88 respectively, and the plurality of fixing portions 110, 110,. At least one may be fixed by a one-way screw. In this case, it is not necessary to replace the relay board cover 84 with a new one every time the relay board cover 84 is released, which is advantageous in terms of cost and convenience.

  In the above embodiment, when the relay board cover 84 is fixed to the inner frame panel 32 of the front door 1, the fixing part 89 of the relay board cover 84 is fixed by the one-way screw 90 so as not to be separated. Although the fragile portion 92 that is a narrow connecting portion for connecting and cutting the substrate cover 84 is provided, the present invention is not limited to this embodiment as the fixing structure of the substrate cover 84. Instead, it is sufficient if the trace remains when the substrate cover 84 is removed. For example, the substrate cover 84 may be composed of a seal and a fixing screw.

  Further, in the above-described embodiment, the liquid crystal display unit 4 and the speakers 5a and 5b on the front door 1 side are controlled based on the command signal of the main control board 45 separately from the main control board 45 that controls the gaming operation of the slot machine. However, the present invention is not limited to this case, and the present invention is not limited to this type, and includes a plurality of sub control boards separately from the main control board. Of course, the present invention can be similarly applied to a slot machine of a type including the above.

  Further, in the above-described embodiment, the case where the reel device 21 having the side and the three rotating reels 22a to 22c is applied to the popular type slot machine arranged in the housing 2 has been described. For example, a reel device having a plurality of rotating reels other than three is arranged in the housing, or a rotating belt is used instead of the rotating reel, and a design is provided on the outer surface of the rotating belt. The present invention can also be provided to a special slot machine in which a variable display device having a plurality of symbol variable portions subjected to the above is arranged in a casing.

It is a front view showing the appearance of the slot machine according to the embodiment of the present invention. It is a front view which shows the arrangement layout in the housing | casing seen by removing the front door from the said slot machine. It is a rear view which shows the back surface side of the said front door. FIG. 3 is a block configuration diagram of a control system of the slot machine. It is a perspective view of a main board case. It is the same top view. A fastener is shown, (a) is a top view, (b) is a front view, (c) is a perspective view. It is an expansion perspective view which shows the state by which the fastener was hold | maintained at each connection part of the main board case. It is sectional drawing in the XX line of FIG. (A) is sectional drawing which shows the combined state of the upper and lower cases in the YY line | wire of FIG. 8, (b) is sectional drawing which shows the isolation | separation state of an upper and lower case. It is an expanded sectional view in the ZZ line of FIG. It is a figure which shows the attachment state of the door relay board | substrate and relay board | substrate cover with respect to an inner frame panel. FIG. 13 is an enlarged view in which a central portion of FIG. 12 is partially cut away. It is an arrow view from the C direction of FIG. It is an expanded sectional view in the DD line of FIG. It is an expanded sectional view in the EE line of FIG. It is an enlarged view near F arrow of FIG. A one way screw is shown, (a) is a front view, (b) is a side view. It is a figure which shows the attachment state of the stop button board | substrate and button board cover with respect to a center operating panel. It is the arrow line view seen along the GG line of FIG. It is an expanded sectional view in the HH line of FIG. FIG. 20 is an enlarged view of the vicinity of the arrow I in FIG. 19. FIG. 13 is a view corresponding to FIG. 12 showing another embodiment.

Explanation of symbols

1 Front door 2 Case 7 Central operation panel 8 Reel display window 11 Medal slot (operation part)
12 Start switch (operation unit)
13 Stop button (stop switch, operation unit)
14 Max bet button (operation part)
21 Reel device (variable display device)
21a, 21b, 21c Rotating reel (variable display part)
32 Inner frame panel 33 Door relay board 34 Stop button board 35 Selector 45 Main control board 81, 85a to 85f Cable
83a to 83d door relay board side connector 84 relay board cover
84a plane part
84b flange part 86a-86d connector 89,110 fixing part on cable side 90,104 one-way screw (fastener)
92, 107a, 107b Vulnerable part (trace display means)
93, 108 Slit 94, 109 Non-slip part 95a to 95d Notch part 100 Button substrate cover (cover member)
105 Second fixing part

Claims (7)

A variation display device having a plurality of variation display portions and a control board for controlling a game operation are arranged in the housing, and a front door constituting a gaming surface is attached to the front opening of the housing. On the front side of the door, there are provided a display window through which the variable display of the variable display device can be seen through, and an operation unit related to the variable display of the variable display device. In the slot machine to which the door relay board for transferring the operation signal to the control board is attached,
A plurality of connectors are mounted along the lower side of the surface opposite to the mounting surface of the door relay board,
The relay board cover that covers the entire surface opposite to the mounting surface of the door relay board including the plurality of connectors is provided. The relay board cover has a substantially horizontally long flat surface facing the door relay board, and the flat surface. A flange part formed over substantially the entire periphery of the part, a fixing part for fixing to the arrangement place by a fastener, and a trace display means for displaying the trace when the fixed state of the relay board cover is once released Ri Na has a door,
The flange portion of the relay board cover is provided with a plurality of cutout portions for passing cables connected to the connectors at portions facing the connectors, and the width dimensions of the cutout portions correspond to each other. A slot machine characterized by being set smaller than the length of the cable-side connector head .   The door relay board transfers operation signals from a plurality of operation units provided to complete one game operation to the control board, and at least one operation unit among the plurality of operation units. Is provided with a cover member that covers the transmitter, and the cover member displays a trace when the cover member is once released from a fixing portion and a fixing portion for fixing the cover member to the arrangement portion. The slot machine according to claim 1, further comprising trace display means.   3. The slot machine according to claim 2, wherein the cover member covers a switch board connected to a plurality of stop switches for individually stopping the variation display of each variation display unit of the variation display device.   2. The slot machine according to claim 1, wherein the trace display means of the relay board cover comprises a weak part formed narrowly so that the fixing part of the relay board cover is connected to other parts of the relay board cover and can be easily cut. .   4. The slot machine according to claim 2, wherein the trace display means of the cover member comprises a weak portion that is narrowly formed so that the fixing portion of the cover member is connected to another portion of the cover member and can be easily cut.   The fastener includes a one-way screw that can be operated only in the screwing direction. The fixing portion has a substantially cylindrical shape having a stepped hole into which the one-way screw can be inserted. The slot machine according to claim 4 or 5, wherein a pair is provided for each part.   The fixing part has a slit at a portion sandwiched between a pair of weak parts, and the inner surface of the large-diameter hole part of the stepped hole of the fixing part slides with the head of the one-way screw to make it difficult to slip. The slot machine according to claim 6, wherein a stop is formed.