JP5062665B2 - Game machine board case - Google Patents

Description

  The present invention relates to a board case that accommodates and holds a control board for controlling the operation of a gaming machine and is attached to the gaming machine.

  In a gaming machine such as a pachinko machine or a slot machine, in order to prevent a fraudulent act against the control board that controls the operation of the gaming machine and to provide a fair game, when a fraudulent act is made on the control board, for example, a game program It is transparent so that the state can be visually inspected from the outside when it is replaced with a fraudulent ROM that has been tampered with, or a fraudulent modification is performed such as adding a fraudulent circuit by blowing a so-called jumper wire on the back side of the control board It is attached to the gaming machine in a state of being accommodated in a simple board case.

  And for electronic components mounted on the control board, a seal sticker using hologram technology or an irreversible seal sticker by delamination is pasted on the board surface across the ROM, and a game facility staff sees through the board case. By visually confirming the sticking state of the seal sticker, it is possible to inspect whether or not the ROM has been illegally exchanged (see, for example, Patent Document 1). In addition, regarding the structure of the board case, a plurality of locking mechanisms with a structure in which the case cannot be opened unless the board case is partially broken (the control board cannot be accessed) are provided at easy-to-view parts. Various unauthorized opening prevention mechanisms configured to be able to inspect the presence or absence of fraud by visually checking the state of the mechanism have been proposed and put into practical use (see, for example, Patent Document 2).

JP 2007-332 A Japanese Patent No. 3693113

  However, even if the countermeasures for preventing illegal acts as described above are provided, for example, the surface of the substrate case facing the electronic components (for example, CPU, ROM, RAM) to be illegally attached / detached may be cut by a cutter or a soldering iron. Can be easily cut out by using a computer, etc., and if there is a risk that fraudulent activity is likely to be discovered later by visual confirmation by a staff member of the game facility, the genuine electronic parts mounted on the control board can be used as game data or winning probability data. There is a problem in that it can be easily replaced with an illegal electronic component that has been illegally altered.

  The present invention has been made in view of such problems, and a substrate that makes it difficult to illegally replace electronic components on a control board housed inside the substrate case by an unauthorized operation from the outside of the substrate case. The purpose is to provide a case.

In order to solve the above-described problems and achieve the object, a board case according to the present invention (for example, the main board case 100 in the embodiment) is for controlling the operation of a gaming machine (for example, the pachinko machine PM in the embodiment). A control board (e.g., main control board 31 in the embodiment) on which electronic components (e.g., the electronic device 32 in the embodiment) are mounted and a transparent resin material that accommodates and holds the control board inside the game. A case member (for example, a case body member 50 and a case lid member 60 in the embodiment) attached to the machine, and a sheet member (for example , a transparent resin material) formed between the control board and the case member The tamper-proof sheets 80 and 91) in the embodiment are provided, and the sheet member is placed in the case member before Configured to cover the entire surface of the electronic component of the control board is mounted side.

In the board case of the gaming machine according to the present invention, the control board on which electronic parts for controlling the operation of the gaming machine are mounted, and the control board formed of a transparent resin material is accommodated and held inside and attached to the gaming machine. A sheet member made of a transparent resin material is provided between the control board and the case member, and the sheet member is an electronic component of the control board housed inside the case member. It is configured to cover the entire surface of the mounted side. For this reason, when trying to cut the surface of the case member from the outside using a cutter or a soldering iron, the sheet member must also be cut, so that extra time is required. The act of illegally attaching and detaching electronic components from the control board can be effectively suppressed.

  Since the sheet member is configured to cover the entire surface of the control board on which the electronic components are mounted, there is a risk of damaging the control board by a cutter or a soldering iron when cutting the sheet member, The act of cutting the surface of the case member and illegally attaching and detaching the electronic component can be prevented with high deterrence. Moreover, even if the control board is changed and the mounting position of the electronic component is changed, the board case can be used as it is, and an increase in manufacturing cost can be prevented.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. As an example of a gaming machine to which the present invention is applied, a front view, a rear view, and a rear perspective view of a pachinko machine PM are shown in FIG. 1, FIG. 2 and FIG. 3, respectively. An outline will be described.

  The pachinko machine PM has a front frame 2 having an open / close mounting frame configured in a rectangular frame size in accordance with a rectangular frame size corresponding to the front of the opening of the outer frame 1 configured in a predetermined frame size of the outer rectangle and forming a vertically fixed holding frame. Are attached to the front by means of the upper and lower hinge mechanisms 3a, 3b arranged at the front left edge of each other so that they can be opened / closed and attached / detached forward, and always using the locking mechanism 4 provided at the front right edge. The outer frame 1 is held closed and locked.

  On the front side of the front frame 2, a rectangular glass door 5 and a ball tray unit 6 adapted to the front side area are laterally opened / closed and detached using hinge mechanisms 7 a, 7 b, 7 c provided on the left side of the front side. And is always held in a closed state on the outer frame 1 using the locking mechanism 4. An operation handle 8 for performing a game ball launching operation is provided at the lower right side of the ball tray unit 6, and a speaker 9 for generating sound effects is provided to the left of the operation handle 8. A rectangular frame-shaped storage frame (not shown) that protrudes rearward from the center to the top of the front frame 2 is formed integrally with the front frame 2, and the game board is configured with a predetermined gauge setting in the storage frame. 10 is detachably set and held, and the game area PA on the front side of the game board 10 can be faced through the glass door 5 which is always closed and held.

  The game board 10 is configured with a decorative board 11 (also referred to as a veneer board) in which cells of a predetermined design are attached to the surface of a laminated plywood, and inner and outer guide rails 12 are formed in an arc shape on the front side of the decorative board 11. A substantially circular game area PA in which a game ball launched from a game ball launcher (not shown) can roll is defined on the inner side that is fixedly surrounded by the guide rail 12.

  In the game area PA, in addition to a large number of game nails and windmills 13, a general winning tool, a starting tool, a winning tool 14 such as an attacker with a large winning opening, and a predetermined image are displayed according to the progress of the game. An image display device 15 is provided. At the lower end of the game area PA, there is provided an out port 16 through which a game ball (referred to as “out ball”) that has fallen to the lower end of the game area PA without winning the winning device 14 is discharged to the back surface of the game board 10. Yes. A game ball (referred to as a “safe ball”) dropped into each winning device 14 is detected by a winning port switch or a start port switch provided in these winning devices 14 and passes through the decorative board 11 (see FIG. It is discharged to the back surface of the game board 10 through (not shown). Further, the out balls collected at the out port 16 are discharged to the back side of the game board 10 through an out ball passage (not shown) penetrating the decorative board 11. Each part of the glass door 5 and the game board 10 is provided with an electrical decoration device 17 using a light source such as an LED or a lamp for visually producing game development.

  The pachinko machine PM configured as described above is used for a game in which the front frame 2, the glass door 5, and the ball tray unit 6 are closed and locked, and the ball ball unit 6 stores the game ball and operates. A game is started by rotating the handle 8. When the operation handle 8 is rotated, the game balls stored in the ball tray unit 6 are shot one by one into the game area PA of the game board 10 by a game ball launching device (not shown), and thereafter the pachinko game is played. Be expanded.

On the back side of the front frame 2 located behind the game board 10 is a main board assembly 30 in which a main control board 31 (see FIG. 4) for comprehensively controlling the operation of the pachinko machine PM is accommodated, and a main control board An image control board (not shown) for controlling an image displayed on the image display device 15 provided in the game board 10 in accordance with the game development in 31
Is attached to the image control board assembly 40. In the following description, front and rear, right and left, and top and bottom are defined based on the states of FIGS. 2 and 3 (see FIG. 3).

  An opening 18 for attaching the image display device 15 is formed at the center of the game board 10, and the image assembly attachment part 19 a is provided on the left and right edges on the back side of the game board 10 so as to sandwich the opening 18. , 19b are disposed. A total of four mounting projections 40a and 40b are formed above and below the left and right side portions of the image control board assembly 40, and these mounting projections 40a and 40b are attached to the image assembly mounting portions 19a and 19b by screw fastening or the like. Then, the image control board assembly 40 is fixed to the game board 10.

  Further, main board mounting portions 20a and 20b are disposed on the left and right edge portions on the back side of the lower part of the game board 10, and the main board assembly 30 is mounted on the main board mounting portions 20a and 20b. The main board mounting portions 20a and 20b are formed so as to protrude rearward from the image assembly mounting portions 19a and 19b, and the upper portion of the main board assembly 30 is the lower portion of the image control board assembly 40 in the rear view. Is attached to the game board 10 so as to cover from behind. In this way, the main board assembly 30 is arranged so as to cover a part of the image control board assembly 40 (partly overlap in the rear view), thereby increasing the size of the image control board assembly 40. These assemblies 30 and 40 can be arranged on the back side of the game board 10 without increasing the vertical dimension.

  Next, the main substrate assembly 30 will be described with reference to FIGS. The main board assembly 30 includes a main control board 31 that comprehensively controls the operation of the pachinko machine PM, a main board case 100 (see FIG. 6) that accommodates the main control board 31, and the main control board 31 and the main board. It is comprised from the fraud prevention sheet | seat 80 provided between cases 100. FIG. Further, the main board case 100 includes a case body member 50 that is attached to and detached from the back side of the game board 10 and a case lid member 60 that is detachably attached to the case body member 50. In FIG. 6, in order to clearly explain the structure of the main board assembly, the anti-fraud sheet 80 and the electronic device 32 housed in the main board case 100 are illustrated by two-dot chain lines.

  The main board assembly 30 is configured such that the case lid member 60 can be attached to the case body member 50 in a state where the main control board 31 is attached to the inner surface side of the case lid member 60. The main board assembly 30 is fixed to the main board attaching portions 20a and 20b by a left Nylatch (registered trademark) 36 attached to a left side fixing part 58 extending outward from the left side part of the case body member 50, and a case lid. A right Nylatch (registered trademark) 37 attached to a right side fixing part 68 extending outward from the right side part of the member 60 is used (see FIGS. 2 and 3).

  As shown in FIG. 4, the main control board 31 has a rectangular plate shape, and a ROM and a RAM arranged at the center are arranged on the rear surface on the electronic device 32 such as a built-in CPU and on the left and right. .. And the like, and a plurality of wiring patterns (not shown) arranged on both sides. .. Are formed at the four corners of the main control board 31, and board mounting screws 35, 35,... Are inserted into the board mounting holes 34, and the case lid member 60 shown in FIG. The board mounting portions 67, 67,... Are screwed to be fastened with screws.

  The case body member 50 has a rectangular box shape having an opening on the rear surface side in a state where the main board case 100 is attached to the game board 10, and is a transparent resin material such as ABS resin or polycarbonate (PC). It is molded using. Reinforcing ribs 51 a are formed in a lattice shape vertically and horizontally on the inner surface side bottom 51 of the case body member 50, thereby improving the strength of the case body member 50.

  A plurality of lid member mounting grooves 54 are formed in each of the main body member side wall portions (in FIG. 4, side wall portions extending rearward from the upper and lower edge portions of the bottom portion 51) 53, 53 of the case main body member 50. The lid member mounting groove 54 includes an insertion groove portion that opens rearward and on the inner surface side of the case body member 50, and a locking groove portion that extends to the left side and opens on the inner surface side of the case body member 50. When viewed from below or above, the main body member side wall 53 is formed as an L-shaped groove. Further, a lid member pressing wall 52 is formed to extend rearward from the bottom portion 51 in a plate shape so as to face each of the lid member mounting grooves 54 in parallel with the inner wall surface of the main body member side wall portion 53. The lateral width of the lid member pressing wall 52 is formed to be substantially the same as the lateral width of the lid member mounting groove 54. When viewed from above or below in the state of FIG. The wall 52 and the lid member mounting groove 54 are disposed so as to overlap.

  The case lid member 60 has a rectangular box shape covering the opening of the case body member 50, and is integrally formed using a transparent resin material such as ABS resin or polycarbonate (PC). As shown in FIG. 5, the lid member side wall 66 extending forward from the upper, lower, left and right edges of the case lid member 60 has a plurality of locking projections 62 protruding outward (vertical direction in FIG. 4). Is formed. The same number of the locking projections 62 as the lid member mounting grooves 54 are formed, and the arrangement interval thereof also corresponds to the lid member mounting grooves 54. Further, on the inner side surface of the lid member side wall portion 66, a pressing projection portion 61 that protrudes inward corresponding to each locking projection portion 62 is formed. The pressing protrusion 61 is formed so as to deviate in the direction opposite to the sliding direction when the case lid member 60 is attached to the case body member 50 with respect to the locking protrusion 62.

  Therefore, when attaching the case lid member 60 to the case body member 50, the locking projection 62 is inserted into the insertion groove portion of the lid member attachment groove 54 from the rear in the state of FIG. By sliding and moving in the left-right direction (leftward in this embodiment) and inserting the locking projection 62 into the locking groove of the lid member mounting groove 54, the locking projection 62 and the lid member mounting groove 54 are moved. Fit.

  At this time, in a state where the locking projection 62 is inserted into the insertion groove of the lid member mounting groove 54, the pressing projection 61 is located on the right side of the lid member pressing wall 52. From this state, the case lid member 60 is moved. In a state where the case main body member 50 is slid leftward with respect to the case main body member 50 and the engaging protrusion 62 is inserted into the engaging groove portion of the lid member attaching groove portion 54, the outer surface of the lid member side wall portion 66 and the main body member side wall portion 53. The pressing projection 61 is sandwiched between the body member side wall 53 and the lid member pressing wall 52.

  When the case main body member 50 and the case lid member 60 are configured as described above, when the case lid member 60 is attached to the case main body member 50, the locking projection 62 is fitted to the lid member attachment groove 54. The case lid member 60 is restricted from moving rearward relative to the case body member 50 (movement for removing the case lid member 60 from the case body member 50). Further, since the lid member side wall portion 66 is pressed against and closely contacts the inner surface of the case body member 50 by the pressing protrusion 61 and the lid member pressing wall 52, the lid member side wall portion 66 can be pushed inward. Therefore, the locking projection 62 cannot be removed from the lid member mounting groove 54.

  The fraud prevention sheet 80 has a rectangular sheet shape that is substantially the same as the inner surface side bottom portion 69 of the case lid member 60 (see FIGS. 5 and 6), and is a transparent resin material such as ABS resin or polycarbonate (PC). As will be described later, it is molded with appropriate rigidity and electrical insulation. When the case cover member 60 is attached to the case main body member 50 and the main control board 31 is accommodated therein, the fraud prevention sheet 80 (the electronic device 32) Is inserted between the bottom surface 69 of the case lid member 60 and the inner surface side bottom portion 69 of the case lid member 60 so as to cover almost the entire surface including the electronic device 32 of the main control board 31. . Since the fraud prevention sheet 80 is formed of a transparent resin material as described above, the notation portion 32a (the surface facing the inner surface side bottom portion 69 of the case lid member 60) of the electronic device 32 is provided. This infringement fact is shown when the description content (company name, serial number, etc.) of FIG. 6) is visible and the electronic device 32 has been replaced with another unauthorized electronic component by an unauthorized player. Can be found.

  A body-side temporary fixing portion 55 is formed at the left end portion of the case main body member 50, and a lid-side temporary fixing portion 63 is formed at the left end side of the case lid member 60. When the case lid member 60 is attached to the case body member 50, that is, when the case lid member 60 is slid and attached to the case body member 50 in the left direction, these body side temporary fixing portions 55 are attached. And the lid-side temporary fixing portion 63 are engaged with each other, and the case lid member 60 is restricted from sliding to the right with respect to the case body member 50. Note that the case body member 50 and the case lid member 60 are thinly formed of a resin material as described above, and can be easily bent. Therefore, by bending the left end side of the lid side temporary fixing part 63 away from the main body side temporary fixing part 55, the engagement between the main body side temporary fixing part 55 and the lid side temporary fixing part 63 is released, and the case body The case lid member 60 can be removed from the case body member 50 by sliding the case lid member 60 to the right with respect to the member 50.

  In this way, the main board case 100 in which the main control board 31 is accommodated is divided into the case main body member 50 and the case lid member 60 that can be separated from each other, thereby attaching the main control board 31 to the case lid member 60. At this time, since the opening of the case lid member 60 can be mounted on a work desk or the like with the opening facing upward, the mounting work is facilitated and the assembly work efficiency is improved. Also, when attaching the case lid member 60 to the case main body member 50, the case lid member 60 can be attached only by sliding movement, so this operation is also easy. Further, when the case lid member 60 is slid and attached to the case body member 50 in this way, the lid member attachment groove 54 is formed on the case body member 50 side, and the locking projection 62 is formed on the case lid member 60. Since the mounting structure can be formed by forming, the structure of the main board case 100 can be simplified.

  As described above, since the main control board 31 is stored in the main board case 100 (the case main body member 50 and the case lid member 60), an illegal act on the main control board 31 can be prevented. However, when the case lid member 60 is attached to the case body member 50, the body side temporary fastening portion 55 and the lid side temporary fastening portion 63 are merely engaged, and the case body member It is easy to remove the case lid member 60 from 50. Therefore, in order to prevent the case lid member 60 in the closed state from slidingly moving with respect to the case body member 50 and preventing unauthorized operation, the main substrate case 100 of the main substrate assembly 30 is provided with an unauthorized opening prevention mechanism 70. ing.

  As shown in FIGS. 4 and 6, the unauthorized opening prevention mechanism 70 is connected to the left end side of the case main body member 50 and integrally formed with four main body side engaging portions 56, and the case lid member 60 on the left end side. Four lid-side engaging portions 64 (connected to the lid-side engaging portion 64 can be separated from the case lid member 60) formed by being connected via a severable connecting portion 65, and inserted into the lid-side engaging portion 64 Thus, the case body member 50 includes four stopper members 71 for fixing and holding the case lid member 60.

  When the case lid member 60 is slid relative to the case main body member 50 so that the lid side engaging portion 64 overlaps the main body side engaging portion 56, the stopper member inserted into the lid side engaging portion 64 The engaging claw provided in 71 and the engaging recess provided in the main body side engaging portion 56 are engaged, and the main body side engaging portion 56 and the lid side engaging portion 64 are latched and held. The rightward sliding movement of the case lid member 60 with respect to the main body member 50 is restricted. Therefore, the state where the case lid member 60 is attached to the case body member 50, that is, the locked state is maintained. Thereby, the main body side engaging part 56 and the lid side engaging part 64 can be easily connected via the stopper member 71, and the case main body member 50 and the case cover member 60 are easily connected and held in the closed state. can do.

  If the case main body member 50 and the case lid member 60 are coupled and held in the closed state by the unauthorized opening prevention mechanism 70, the engagement with the stopper member 71 engaged with the main body side engaging portion 56 is released. In order to open the main substrate case 100 (main substrate assembly 30), it is necessary to cut the connecting portion 65 and separate the lid side engaging portion 64 from the case lid member 60. Therefore, after the main board case 100 is released, the cutting trace of the connecting portion 65 remains clearly, so that unauthorized opening can be detected at an early stage and illegal acts can be effectively suppressed.

  However, in the state where the case main body member 50 and the case lid member 60 are coupled and held in the closed state by the unauthorized opening prevention mechanism 70, as shown in FIGS. When the electronic device 32 is to be detached from the main control board 31 by cutting the portion (dotted line A) with a cutter, a soldering iron, etc., the fraud prevention sheet 80 in addition to the bottom on the outer surface side of the case lid member 60. Furthermore, the anti-fraud sheet 80 is formed with an appropriate rigidity and is deformed by a force applied by a cutter, a soldering iron, etc. during cutting, so that the anti-fraud sheet is difficult to cut. Extra time for cutting 80 is required, and such illegal acts can be suppressed.

  Further, when trying to cut the bottom of the case lid member 60 and the fraud prevention sheet 80, the fraud prevention sheet 80 and the main control board 31 are close to each other, and the fraud prevention sheet 80 has appropriate rigidity. 7, the anti-fraud sheet 80 is deformed in the direction close to the main control board 31 by the force applied by the cutter and the soldering iron from above in the state of FIG. 7. There is a risk that the main control board 31 may be damaged by a soldering iron or the like. At that time, even if the electronic device 32 is replaced with an illegal electronic device in which game data, winning probability data, etc. are illegally altered, It will not work, and such cheating can be effectively deterred without meaning.

  The fraud prevention sheet 80 is formed on the outside of the main board case 100 from a cutting hole (for example, a portion indicated by a dotted line A in FIG. 6) when the outer surface side bottom portion of the case lid member 60 is cut using a cutter, a soldering iron, or the like. It is formed with such a rigidity that it cannot be pulled out, and a rigidity that can be deformed by the force applied when it is cut by a cutter, a soldering iron or the like as described above. Further, the anti-fraud sheet 80 is provided close to the main control board 31 and is electrically insulated so that the main control board 31 does not short-circuit when the main control board 31 and the anti-fraud sheet 80 come into contact with each other. Has been molded. Further, since the anti-fraud sheet 80 is formed in substantially the same shape as the inner surface side bottom portion 69 of the case lid member 60, it comes close to the inner surface of the lid member side wall portion 66 of the case lid member 60, thereby causing the main control board 31. The movement in the direction along the surface on which the electronic device 32 is disposed is restricted, and the main control board 31 can move in the direction perpendicular to the surface on which the electronic device 32 is disposed (up and down direction in FIG. 7). ing.

  The fraud prevention sheet 80 can be pulled out from the main board case 100 by cutting the outer surface side bottom portion of the case lid member 60 in a wide range (for example, a portion wider than the portion indicated by the dotted line A in FIG. 6). Therefore, the fraud prevention sheet 80 is also effective in suppressing the act of illegally attaching / detaching the electronic device 32 to / from the main control board 31. Further, since the anti-fraud sheet 80 is provided so as to cover almost the entire surface including the electronic device 32 of the main control board 31, for example, by changing the main control board 31 (legitimate replacement by a staff member of a game facility). Even if the mounting position of the electronic device 32 changes, the main substrate case 100 and the fraud prevention sheet 80 can be used as they are, so that an increase in manufacturing cost can be prevented. Furthermore, by using the anti-fraud sheet 80 also in a board case attached to an existing gaming machine, it is possible to easily take measures to prevent such fraud.

  Next, the main substrate assembly 90 according to the second embodiment will be described with reference to FIGS. The configuration of the main substrate assembly 90 according to the second embodiment is basically the same as the configuration of the main substrate assembly 30 according to the first embodiment described above, and therefore the same members are denoted by the same reference numerals. Detailed description is omitted. Further, in FIG. 8, in order to clearly describe the structure of the main board assembly 90, the tamper-proof sheet 91 and the electronic device 32 housed in the main board case 100 are illustrated by two-dot chain lines.

  The main board assembly 90 includes a main control board 31 that comprehensively controls the operation of the pachinko machine PM, a main board case 100 that houses the main control board 31, and a space between the main control board 31 and the main board case 100. The fraud prevention sheet 91 is provided. A total of four plate-like locking ribs 92 extending toward the main control board 31 in a state where the main control board 31 is housed inside the main board case 100 are provided on the inner surface side bottom 69 of the case lid member 60. The case lid member 60 is formed integrally with a transparent resin material such as resin or polycarbonate (PC). (In this embodiment, four locking ribs 92 are formed in pairs in the vertical and horizontal directions in the state of FIG. 3). When the case lid member 60 is attached to the case main body member 50 and the main control board 31 is housed inside the locking rib 92, the locking rib 92 is used to hold the electronic device 32 and the tamper-proof sheet 91 disposed on the main control board 31. It is formed so as to be close to the rear surface of the main control board 31 (the surface facing the inner surface side bottom portion 69 of the case lid member 60) at the enclosing position.

  The fraud prevention sheet 91 has a rectangular sheet shape, and is molded with a suitable rigidity and electrical insulation as described later using a transparent resin material such as ABS resin or polycarbonate (PC). The When the case cover member 60 is attached to the case main body member 50 and the main control board 31 is accommodated therein, the fraud prevention sheet 91 is an electronic device 32 of the main control board 31 (a target electronic component that is replaced and performs an illegal act). Is provided at a position between the surface on which the electronic device 32 is disposed and the inner surface side bottom 69 of the case lid member 60 so as to cover a predetermined range including the electronic device 32 of the main control board 31. Since the fraud prevention sheet 91 is formed of a transparent resin material as described above, the fraud prevention sheet 91 has the notation portion 32a described on the surface of the electronic device 32 (the surface facing the inner surface side bottom portion 69 of the case lid member 60). The description contents (company name, serial number, etc.) are visible, and if the electronic device 32 is replaced by another unauthorized electronic component by an unauthorized player, this unauthorized fact can be detected. It has become.

  With the case main body member 50 and the case lid member 60 being joined and held in a closed state by the unauthorized opening prevention mechanism 70, the bottom portion (for example, the portion indicated by the dotted line B) of the case lid member 60 is removed by a cutter or a soldering iron. When the electronic device 32 is to be removed from the main control board 31 by cutting with the use of, etc., the fraud prevention sheet 91 must be cut in addition to the bottom portion on the outer surface side of the case lid member 60, and further fraud prevention The sheet 91 is formed with an appropriate rigidity and is deformed by a force applied by a cutter, a soldering iron, or the like at the time of cutting, so that it is difficult to cut and an extra time is required for cutting the anti-fraud sheet 91. Thus, such an illegal act can be suppressed.

  Further, when trying to cut the bottom of the case lid member 60 and the fraud prevention sheet 91, the fraud prevention sheet 91 and the main control board 31 are close to each other, and the fraud prevention sheet 91 has an appropriate rigidity. 9, since the anti-fraud sheet 91 is deformed in the direction approaching the main control board 31 by the force applied by the cutter and the soldering iron from above in the state of FIG. 9, when cutting the anti-fraud sheet 91, There is a risk that the main control board 31 may be damaged by a soldering iron or the like. At that time, even if the electronic device 32 is replaced with an illegal electronic device in which game data, winning probability data, etc. are illegally altered, It will not work, and such cheating can be effectively deterred without meaning.

  The tamper-proof sheet 91 is formed on the outside of the main board case 100 through a cutting hole (for example, a portion indicated by a dotted line B in FIG. 8) when the outer surface side bottom portion of the case lid member 60 is cut using a cutter, a soldering iron, or the like. It is formed with such a rigidity that it cannot be pulled out, and a rigidity that can be deformed by the force applied when it is cut by a cutter, a soldering iron or the like as described above. Further, the anti-fraud sheet 91 is provided in the vicinity of the main control board 31 and is electrically insulated so that the main control board 31 does not short-circuit when the main control board 31 and the anti-fraud sheet 91 come into contact with each other. Has been molded. Further, the fraud prevention sheet 91 is positioned close to each locking rib 92 formed on the case lid member 60, so that the movement in the direction along the surface on which the electronic device 32 of the main control board 31 is disposed is prevented. Regulated and movable in a direction (vertical direction in FIG. 9) perpendicular to the surface on which the electronic device 32 of the main control board 31 is disposed.

  The fraud prevention sheet 91 can be pulled out from the main board case 100 by cutting the outer surface side bottom of the case lid member 60 in a wide range (for example, a portion wider than the portion indicated by the dotted line B in FIG. 8). Therefore, the anti-fraud sheet 91 is also effective in suppressing the act of illegally attaching / detaching the electronic device 32 to / from the main control board 31.

  In addition, this invention is not limited to said embodiment, The surface by which the electronic device 32 of the main control board 31 is arrange | positioned and the inner surface side bottom part 69 of the case cover member 60 are the fraud prevention sheet 80 (91). Various modifications are possible within the scope of the gist of being provided between the two. For example, the fraud prevention sheet 80 (91) is provided by being affixed to the inner surface side bottom portion 69 of the case lid member 60, and the inner surface when the outer surface side bottom portion of the case lid member 60 is cut by a cutter or a soldering iron. The electronic device 32 may be configured to be peeled off from the side bottom 69. Further, in this embodiment, the fraud prevention sheet 80 (91) is used in the main control board 31 (electronic device 32), but the fraud prevention sheet 80 (91) is similarly provided in other boards and other electronic devices. Therefore, it is preferable to suppress such illegal acts.

It is a front view of the pachinko machine shown as an example of the gaming machine according to the present invention. It is a rear view of the pachinko machine. It is a back perspective view of the pachinko machine. It is a disassembled perspective view of the main board | substrate assembly provided in the said pachinko machine. It is a figure which shows a case cover member, Comprising: (a) is a top view, (b) is a bottom view. It is explanatory drawing which shows the structure of the main board case, the fraud prevention sheet, and the main control board in the main board assembly which concerns on this invention. It is VII-VII sectional drawing of FIG. It is explanatory drawing which shows the other structural example of the said main board | substrate assembly. It is the IX-IX surface view of FIG.

Explanation of symbols

PM Pachinko machine (game machine)
31 Main control board (control board)
32 Electronic devices (electronic parts)
50 Case body member (case member)
60 Case lid member (case member)
80 Fraud prevention sheet (sheet member)
91 Fraud prevention sheet (sheet member)
100 Main board case (board case)

Claims (1)

A gaming machine comprising a control board on which electronic parts for controlling the operation of the gaming machine are mounted, and a case member that is formed of a transparent resin material and is housed and held inside the control board and attached to the gaming machine Board case,
A sheet member formed of a transparent resin material is provided between the control board and the case member,
The board case of a gaming machine, wherein the sheet member covers the entire surface of the control board housed in the case member on the side where the electronic component is mounted.

Images