JP2014128427A - Board case unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board case unit capable of preventing a fraudulent activity to a control board.SOLUTION: A board case unit 100 where a main control board 41 has a printed circuit board 102, and a game machine control chip 104 arranged on the printed circuit board 102, and a plurality of board insertion holes 103, 103,... are formed around the game machine control chip 104 in the printed circuit board 102 includes: a plurality of protection wall parts 151, 151,... which are provided so as to vertically extend to inside a lid side bottom 131 of a case lid 130, and are inserted into a plurality of the board insertion holes 103, 103,... of the printed circuit board 102 to surround the periphery of the game machine control chip 104; and a fixation receiving part 122 which is provided inside a body side bottom 121 of a case body 120 and to which the tip parts of a plurality of the protection wall parts 151, 151,...are fixed.

Description

  The present invention relates to a board case unit that houses a control board used for controlling a gaming machine.

  A gaming machine such as a pachinko gaming machine is provided with a control board that controls the operation of an electronic component mounted on the gaming machine. For example, a control board called a main control board or a main control board is equipped with a ROM in which game machine control software is written, and plays a role as a central control device for comprehensively controlling the operation of the game machine. ing. Therefore, the control board of the gaming machine is likely to be a target of fraudulent acts such as replacement with a counterfeit ROM or addition of an illegal circuit.

  In order to prevent such dishonest act and provide a fair game, the control board is a board case comprising a case body formed of a transparent resin material and a case lid that can be opened and closed in front of the case body. Is housed inside. In addition, when the case lid is attached to the case body in a closed state, the engagement portion formed on the case body side and the engagement portion formed on the case lid side are engaged and connected to the board case. To prevent the circuit board case from being opened unless it is locked using a tool such as a nipper to lock the circuit board case in a closed state and the connecting part that connects the case lid (or the case body) and its engaging part. A mechanism is provided (see, for example, Patent Document 1).

JP 2004-65280 A

  However, fraudulent acts on control boards are becoming more sophisticated, and there is a need for measures to prevent such fraudulent acts more reliably.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a board case unit that can more reliably prevent an illegal act on a control board.

  In order to achieve such an object, a substrate case unit according to the present invention includes a box-shaped first case member having an opening, and a box coupled so as to close the opening with respect to the first case member. A second case member having a shape, and a control board is accommodated in a case formed by joining the second case member to the first case member so as to close the opening. The control board includes a printed circuit board attached to the bottom inside of either the first case member or the second case member, and a predetermined electronic component disposed on the printed circuit board. A plurality of board insertion holes are formed around the predetermined electronic component on the printed circuit board, and extend vertically to the inner side of one of the first case member and the second case member. A plurality of protective wall portions that are inserted into the plurality of board insertion holes of the printed circuit board and surround the periphery of the predetermined electronic component, and the other bottom portion of the first case member and the second case member A fixing portion provided on the inner side, to which tip ends of the plurality of protective wall portions are fixed.

  According to the present invention, it is possible to more reliably prevent fraudulent acts on the control board.

It is a perspective view of the pachinko game machine provided with the main control board case unit concerning this embodiment. It is a rear view of a pachinko gaming machine. It is a disassembled perspective view of a main control board case unit. (A) is a perspective view of the main control board case unit, (b) is a side sectional view of the main control board case unit. It is side sectional drawing which shows the process of attaching a case cover with respect to a case main body in order of (a)-(c). It is side sectional drawing which shows the process of inserting an upper plate and a lower plate in order of (a)-(c).

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. As a representative example of a gaming machine provided with a substrate case unit according to the present embodiment, a perspective view and a rear view of a pachinko gaming machine PM are shown in FIGS. 1 and 2, and first, referring to this figure, the pachinko gaming machine The overall configuration of PM will be described.

[Overall configuration of pachinko machines]
First, the basic structure of the front side of the pachinko gaming machine PM will be described with reference to FIG. As shown in FIG. 1, the pachinko gaming machine PM is configured with a rectangular frame size adapted to the front of the opening of the outer frame 1 which forms a vertically fixed holding frame configured in an outer rectangular frame size, and can be opened and closed. The front frame 2 that forms a frame is attached to the front left side edge portion of the front left and right hinge mechanism 3 so that it can be opened and closed sideways and detachable, and is called a double lock provided on the front right side edge portion. The device 4 is always held in a closed state engaged and connected to the outer frame 1.

  On the front frame 2, a rectangular glass frame 5 fitted to the upper front area of the front frame 2 is assembled so as to be opened and closed laterally and detachable using the upper and lower hinge mechanisms 3, and using the locking device 4 It is always kept in a closed state covering the front surface of the front frame 2. In the front frame 2, the game board 10 is detachably set and held, and the game area PA in front of the game board 10 is faced through the multi-layer glass 5a of the glass frame 5 that is always held closed. ing.

  Upper and lower ball trays (upper ball tray 6a and lower ball tray 6b) for storing game balls are provided below the glass frame 5, and a launch handle 7 for performing a game ball launch operation on the front right side of the lower ball tray 6b. Is provided. On the front side of the glass frame 5, there are provided an electrical decoration device 8 such as a light emitting diode (LED) or a lamp, and a speaker 9 for generating a sound effect according to the developed state of the game.

  Although the detailed illustration is omitted in FIG. 1, the game board 10 is a board with a decorative board that is molded by attaching a cell on which a predetermined pattern is printed to a rectangular laminated plywood that has been subjected to router processing or the like. A substantially circular game area PA is formed surrounded by upper and lower rail decorations. The game area PA is provided with game components such as a large number of game nails, windmills, central decorations, an effect display device that displays a predetermined image according to the progress of the game, and various winning holes. At the lower end of the game board, an out port is formed through the game board 10 in the front-rear direction for discharging the game ball that has fallen to the back side without falling into the winning port.

  Next, the basic structure of the back side of the pachinko gaming machine PM will be described with reference to FIG. On the back side of the front frame 2, there is a back set board 30, which has a window that communicates with the front and rear in the center and is based on a base frame that is formed in a rectangular frame shape somewhat smaller than the front frame 2. Via the hinge mechanism 3, it is connected to the back of the front frame 2 so that it can be opened, closed, and detached. A back set cover 30C having a rectangular box shape with an open front is detachably attached to the back set board 30 and is always disposed to cover the back side of the game board 10 attached to the front frame 2. (The main control board 41 and the effect control board 42 described later are thereby covered by the back set cover 30C).

  Each part of the back set board 30 includes a ball storage tank 31 for storing a large number of game balls, a tank rail 32 extending from the ball storage tank 31 with a gentle downward slope to the right, and a right end portion of the tank rail 32. A ball supply passage member 33 extending downward from the connection, a prize ball payout unit 34 for paying out a game ball guided by the ball supply passage member 33, and a game ball paid out from the prize ball payout unit 34 for guiding the game ball to the upper ball tray 6. A prize ball passage member 35 and the like are provided.

  On the back side of the game board 10, there are a main control board 41 (main control board case unit 100) that comprehensively controls the operation of the pachinko gaming machine PM, an image display according to game development, effect lighting, sound effects, etc. An effect control board 42 (effect control board case unit 200) for controlling the overall effects is attached. On the other hand, on the back side of the back set board 30, a payout control board 43 (payout control board case unit 300) that performs control related to the launch and payout of game balls, various control boards that receive power from the game facility side, A power supply board 44 (power supply board case unit 400) for supplying power to the electric / electronic components is attached. These control boards and electrical / electronic components of each part of the pachinko gaming machine PM are connected by a harness (connector cable) so that the pachinko gaming machine PM can be operated.

  The pachinko gaming machine PM is used for a game in which the outer frame 1 is fixedly installed on the gaming island (installation frame base) of the gaming facility, the front frame 2, the glass frame 5 and the like are closed and locked, and is placed on the upper ball tray 6a. The game is started by storing the game ball and rotating the launch handle 7. When the firing handle 7 is turned, the game balls stored in the upper ball tray 6a are sent to the launching mechanism one by one by the ball feeding mechanism disposed on the back side of the glass frame 5, and the launching mechanism 7 After being launched into the game area PA, a pachinko game is developed thereafter.

[Configuration of main control board case unit]
Next, the main control board case unit 100 according to the present embodiment will be described with additional reference to FIGS. In the following description, for convenience of explanation, the vertical and horizontal directions are defined with reference to the state of FIG. 3 as directions in the state of attachment to the pachinko gaming machine PM. The directions of the arrows shown in FIG. 3 is an exploded perspective view of the main control board case unit 100, FIG. 4A is a perspective view of the main control board case unit 100, and FIG. 4B is a side sectional view of the main control board case unit 100. is there.

  The main control board case unit 100 is mainly configured by the main control board 41 that plays a central role in the pachinko gaming machine PM and the board case 110 that accommodates the main control board 41 therein. The main control board 41 includes a rectangular printed board 102 and electronic / electrical components such as a gaming machine control chip 104, resistors, capacitors, and connectors mounted on the printed board 102. The printed circuit board 102 is substantially parallel to the lid-side bottom portion 131 (and the main body-side bottom portion 121) of the substrate case 110 with a boss-shaped substrate mounting portion 105 formed inside the lid-side bottom portion 131 of the substrate case 110. Screw fixed. Further, in the peripheral portion of the gaming machine control chip 104 in the printed circuit board 102, six rectangular board insertion holes 103, 103,... Through which the protective wall portions 151, 151,. They are formed side by side so as to surround the chip 104.

  The board case 110 holds a case main body 120 attached to and detached from the back surface of the game board 10, a case lid 130 attached to and coupled to the case main body 120, and a closed state in which the case lid 130 is coupled to the case main body 120. The closing holding mechanism 140 and the chip cover 150 surrounding the gaming machine control chip 104 are configured. The case main body 120 and the case lid 130 are formed in a box shape by a molding means such as injection molding using a transparent resin material (for example, thermoplastic resin), and the inside of the substrate case 110 can be visually recognized from the outside. .

  The case main body 120 is formed in a rectangular box shape having an opening H1 on the rear surface side, and has a rectangular main body side bottom 121 viewed from the opening H1 side, an upper outer wall portion 124 that surrounds the upper, lower, left, and right sides of the opening H1. It has an outer wall portion 125, a left outer wall portion 126, and a right outer wall portion 127. On the inner surface side (rear surface side) of the main body side bottom portion 121, a concave and convex groove-shaped fixing receiving portion 122 for receiving and fixing the tip portions of the protective wall portions 151, 151,. Has been. On the inner side (lower side) of the upper outer wall portion 124, an upper inner wall portion 128 extending substantially parallel to the upper outer wall portion 124 is formed so as to be connected to the main body side bottom portion 121 substantially perpendicularly. A lower inner wall portion 129 extending substantially parallel to the lower outer wall portion 125 is formed on the inner side (upper side) of the lower outer wall portion 125 so as to be connected to the main body side bottom portion 121 substantially perpendicularly. Notch portions for receiving the left wall portion 136 and the right wall portion 137 of the case lid 130 between the left and right end portions of the upper inner wall portion 128 and the lower inner wall portion 129 and the left outer wall portion 126 and the right outer wall portion 127, respectively. 128a and 129a are formed.

  The case lid 130 is formed in a rectangular box shape having an opening H2 on the front side, and has a rectangular lid side bottom portion 131 as viewed from the opening H2 side, an upper side wall portion 134 that surrounds the upper, lower, left, and right sides of the opening H2. It has a side wall part 135, a left side wall part 136, and a right side wall part 137. On the outer surface side (rear surface side) of the lid side bottom portion 131, a cover attaching portion 132 for receiving and fixing the plate portion 152 of the chip cover 150 is formed in a rectangular shape. Further, six rectangular board insertion holes 103, 103,... Through which the protective wall parts 151, 151,. The upper side wall part 134 and the lower side wall part 135 are adjacent to the outside of the upper inner wall part 128 and the lower inner wall part 129 of the case main body 120 in a state where the case lid 130 is coupled to the case main body 120, respectively. Yes.

  On the outer side (upper side) of the upper side wall part 134, an upper guide wall part 138 extending substantially parallel to the upper side wall part 134 is formed so as to be connected to the left side wall part 136 and the right side wall part 137. An upper gap S1 is formed between the upper side wall 134 and the upper guide wall 138 so as to penetrate in the front-rear direction, and the upper side wall 134 is formed between the upper inner wall 128 and the upper outer wall 124 of the case body 120. And the upper receiving space T1 which can receive the upper guide wall part 138 is formed. A lower guide wall portion 139 extending substantially parallel to the lower wall portion 135 is formed outside the lower wall portion 135 (downward) so as to be connected to the left side wall portion 136 and the right side wall portion 137. A lower gap S2 is formed between the lower side wall 135 and the lower guide wall 139 in the front-rear direction, and the lower side wall 135 is provided between the lower inner wall 129 and the lower outer wall 125 of the case body 120. And the lower receiving space T2 which can receive the lower guide wall part 139 is formed. The upper guide wall portion 138 and the lower guide wall portion 139 are adjacent to the inside of the upper outer wall portion 124 and the lower outer wall portion 125 of the case main body 120 in a state where the case lid 130 is coupled to the case main body 120, respectively. It is like that.

  The closing holding mechanism 140 includes an upper locking hole 141 and a lower locking hole 142 formed in the case body 120, an upper locking claw 143 and a lower locking claw 144 formed in the case lid 130, and an upper plate. 145 and a lower plate 146. Six upper locking holes 141 are formed in the case body 120 in the vicinity of the edge of the upper inner wall 128 in the left-right direction (the extending direction of the upper inner wall 128). Six lower locking holes 142 are formed in the case body 120 in the vicinity of the edge of the lower inner wall portion 129 in the left-right direction (the extending direction of the lower inner wall portion 129). Six upper locking claws 143 are formed on the edge of the upper side wall portion 134 of the case lid 130 in the left-right direction (the extending direction of the upper side wall portion 134). When the is attached, it is configured to be locked in the upper locking hole 141. Six lower locking claws 144 are formed on the edge of the lower side wall portion 135 of the case lid 130 in the left-right direction (the extending direction of the lower side wall portion 135). When the is attached, it is configured to be locked in the lower locking hole 142.

  The upper plate 145 is formed in a plate shape that uses a transparent resin material (for example, thermoplastic resin) to close the upper gap portion S1 by molding means such as injection molding. The lower plate 146 is formed in a plate shape that uses a transparent resin material (for example, thermoplastic resin) to close the lower gap portion S2 by a molding means such as injection molding. The upper plate 145 and the lower plate 146 are configured to lock the upper locking claw 143 and the lower locking claw 144 in the upper locking hole 141 and the lower locking hole 142, respectively, and then the upper gap S1 and the lower gap. Each is inserted into S2 and welded to the case lid 130. Further, the cross-sectional shapes of the upper plate 145 and the lower plate 146 are formed in a two-layer plate shape in which one end is coupled and the other end side is separated by a predetermined interval, and the thicknesses of the upper plate 145 and the lower plate 146 are reduced. The upper plate 145 and the lower plate 146 are inserted into the upper gap portion S1 and the lower gap portion S2, respectively, using an elastic force corresponding to the elastic deformation in the direction.

  The chip cover 150 includes six protective wall portions 151, 151,... Surrounding the gaming machine control chip 104 and a plate portion 152 that holds the respective protective wall portions 151, 151,. The plate portion 152 is formed integrally with each of the protective wall portions 151, 151,... And is fixedly attached to the cover attaching portion 132 of the case lid 130. Each of the protection wall portions 151, 151,... Is formed in a plate shape extending perpendicularly to the plate portion 152, and is arranged in a rectangular shape on the back side (front side) of the plate portion 152. .. With the plate portion 152 attached to the cover attaching portion 132, and the protective wall portions 151, 151,... Are inserted into the case insertion holes 133, 133,. It extends vertically inward from the (cover attachment portion 132).

[Operation of main control board case unit]
Next, the operation when assembling the main control board case unit 100 will be described with additional reference to FIGS. Here, FIG. 5 is a side sectional view showing the process of assembling the case lid 130 to the case body 120 in the order of (a) to (c), and FIG. 6 shows the process of fitting the upper plate 145 and the lower plate 146 (a It is a sectional side view shown in order of ()-(c). To assemble the main control board case unit 100, first, as shown in FIG. 5A, the printed board 102 is attached to the board attaching portion 105 of the case lid 130 and fixed with screws. Thus, the main control board 41 (printed board 102) is attached to the inside of the lid side bottom 131 of the case lid 130 so that the gaming machine control chip 104 faces the lid side bottom 131.

  Next, as shown in the order of FIGS. 5A to 5C, the case lid 130 is assembled and coupled to the case main body 120. At this time, as shown in FIGS. 5A and 5B, when the case lid 130 approaches the case main body 120, the upper locking claw 143 and the lower locking claw 144 of the closing holding mechanism 140 are moved to the case main body 120. The upper inner wall portion 128 and the lower inner wall portion 129 are in contact with each other and pressed outward, and the upper side wall portion 134 and the lower side wall portion 135 of the case lid 130 are elastically deformed toward the upper gap portion S1 and the lower gap portion S2. And elastically displaced outward. Then, as shown in FIG. 5C, when the upper guide wall 138 and the lower guide wall 139 of the case lid 130 come into contact with the main body side bottom 121 of the case main body 120, the upper locking claw of the closing holding mechanism 140. The upper locking hole 141 and the lower locking hole 144 formed in the case main body 120 are oscillated and displaced inward using the elastic force of the upper and lower side wall portions 134 and 135. It latches to each part 142.

  Thereby, the case lid 130 is locked and held in a state of being coupled to the case main body 120 by the upper locking claw 143 and the lower locking claw 144 of the closing holding mechanism 140. At this time, the upper side wall part 134 and the lower side wall part 135 of the case lid 130 are adjacent to the outside of the upper inner wall part 128 and the lower inner wall part 129 in the case main body 120, and the upper guide wall part 138 and the lower guide wall part of the case lid 130. 139 is adjacent to the inside of the upper outer wall portion 124 and the lower outer wall portion 125 in the case main body 120. In this state, an upper gap portion S1 and a lower gap portion S2 are formed between the upper side wall portion 134 and the lower side wall portion 135 of the case lid 130 and the upper guide wall portion 138 and the lower guide wall portion 139.

  Next, as shown in the order of FIGS. 6A to 6C, the upper plate 145 and the lower plate 146 of the closing holding mechanism 140 are fitted into the upper gap portion S1 and the lower gap portion S2. Next, a solvent is applied to weld the upper plate 145 and the lower plate 146 to the case lid 130. At this time, for example, as shown in FIG. 6C, an upper welded portion 147 is formed at the end (rear end) of the upper plate 145 by the dissolution of the resin by the solvent, and the upper plate 145 moves the upper welded portion 147. To the upper side wall portion 134 and the upper guide wall portion 138 of the case lid 130. Similarly, a lower welded portion 148 is formed at the end (rear end) of the lower plate 146 by the dissolution of the resin by the solvent, and the lower plate 146 passes through the lower welded portion 148 and the lower side wall portion 135 of the case lid 130 and It is welded to the lower guide wall portion 139. Accordingly, the upper plate 145 and the lower plate 146 that block the upper gap portion S1 and the lower gap portion S2 restrict the displacement toward the upper gap portion S1 and the lower gap portion S2 of the upper locking claw 143 and the lower locking claw 144. Is done.

  Then, as shown in FIGS. 6C and 4B, the chip cover 150 is attached to the case lid 130 and fixed. At this time, the protective wall portions 151, 151,... Of the chip cover 150 are inserted into the case insertion holes 133, 133,... Of the case lid 130 and the board insertion holes 103, 103,. The plate portion 152 of the chip cover 150 is received in the cover attaching portion 132 of the case lid 130. Further, at this time, a solvent is applied to the tip of each protective wall 151, 151,... And welded to the fixing receiving portion 122 of the case body 120, and a solvent is applied to the back side (front side) of the plate portion 152. It is made to weld to the cover attaching part 132. FIG. As a result, the main control board 41 is accommodated inside the board case 110, and the gaming machine control chip 104 is further surrounded by the protective wall portions 151, 151,. Assembled.

  Since the conventional unauthorized opening prevention mechanism is provided on the outside of the substrate case, the substrate case is easily opened illegally even though it is easily accessible and traces of opening remain. On the other hand, in the main control board case unit 100 of the present embodiment, the upper side wall part 134 and the lower side wall part 135 of the case lid 130 and the gap part (upper gap) between the upper guide wall part 138 and the lower guide wall part 139. The upper plate 145 that is inserted into the portion S1 and the lower gap portion S2) and restricts the displacement of the upper locking claw 143 and the lower locking claw 144 toward the gap portions (upper gap portion S1 and lower gap portion S2); A lower plate 146 is provided. As a result, the locking portions of the upper locking claw 143 and the lower locking claw 144 are blocked by the upper plate 145 and the lower plate 146 and are not exposed to the outside, so that the case lid 130 is coupled to the case body 120. Access to the upper locking claw 143 and the lower locking claw 144 holding the state from the outside becomes difficult. Therefore, unauthorized opening of the substrate case 110 can be prevented more reliably, and unauthorized acts on the main control board 41 can be more reliably prevented.

  In order to open the inside of the substrate case 110, it is necessary to remove the upper locking claws 143 and the lower locking claws 144 from the upper locking holes 141 and the lower locking holes 142 formed in the case body 120. is there. For that purpose, it is necessary to displace the upper locking claw 143 and the lower locking claw 144 outward (toward the upper gap portion S1 and the lower gap portion S2), and the upper plate 145 and the lower plate 146 are blocked. A gap corresponding to the upper gap portion S1 and the lower gap portion S2 must be provided by prying up the portion. On the other hand, in this embodiment, the upper plate 145 is fixed to the upper side wall portion 134 and the upper guide wall portion 138 of the case lid 130 via the upper welded portion 147, and the lower plate 146 is fixed to the case via the lower welded portion 148. The lid 130 is fixed to the lower side wall part 135 and the lower guide wall part 139. As a result, when the portion blocked by the upper plate 145 and the lower plate 146 is tried to be opened, the upper welded portion 147 or the lower welded portion 148 is destroyed and the trace remains, so that unauthorized access to the main control board 41 is prevented. Can be easily discovered.

  In the present embodiment, the upper locking hole portion 141 and the lower locking hole portion are formed inside the upper outer wall portion 124 and the lower outer wall portion 125 corresponding to the long side of the rectangular main body side bottom portion 121 in the case main body 120. The upper inner wall portion 128 and the lower inner wall portion 129 formed with 142 are formed, and the upper side wall portion 134 and the lower side wall portion 135 corresponding to the long side of the rectangular lid side bottom portion 131 in the case lid 130 are the upper inner wall portion 128. The upper locking claw 143 and the lower locking claw 144 formed on the upper side wall part 134 and the lower side wall part 135 are adjacent to the outside of the lower inner wall part 129 and the upper locking hole part 141 and the lower locking hole part. 142 is engaged. As a result, the upper locking hole 141 and the lower locking hole 142, and the upper locking claw 143 and the lower locking claw 144 are provided on the long side of the rectangular shape, so that the upper plate 145 and the lower plate 146 are provided. The range in which can be inserted can be made as long as possible. Therefore, unauthorized opening of the substrate case 110 can be prevented more reliably, and unauthorized acts on the main control board 41 can be more reliably prevented.

  Further, in the present embodiment, in the case lid 130, the upper side wall part 134 and the lower side wall part 135 adjacent to the outside of the upper inner wall part 128 and the lower inner wall part 129 and the inner side of the upper outer wall part 124 and the lower outer wall part 125 are adjacent. Between the upper guide wall portion 138 and the lower guide wall portion 139, an upper gap portion S1 and a lower gap portion S2 are formed. Thereby, since the thickness of the wall part adjacent to the upper plate 145 and the lower plate 146 can be increased, it becomes difficult to pry the part blocked by the upper plate 145 and the lower plate 146. Therefore, unauthorized opening of the substrate case 110 can be prevented more reliably, and unauthorized acts on the main control board 41 can be more reliably prevented.

  In this embodiment, a plurality of upper locking holes 141 and lower locking holes 142 are formed side by side in the extending direction of the upper inner wall 128 and the lower inner wall 129, and the upper locking claws 143 and the lower locking claws are formed. A plurality of 144 are formed side by side in the extending direction of the upper side wall part 134 and the lower side wall part 135. Thereby, in order to open the inside of the substrate case 110, it is necessary to remove the upper locking claw 143 and the lower locking claw 144 from the upper locking hole 141 and the lower locking hole 142 multiple times. In order to open the inside of the substrate case 110, a lot of labor is required and many traces remain. Therefore, unauthorized access to the main control board 41 can be easily found.

  Further, the conventional board case unit has a configuration in which the gaming machine control chip cannot be lifted from the printed circuit board by recessing a part of the case lid to reduce the gap between the gaming machine control chip and the gaming machine control chip. This can prevent an illegal act of exchanging the gaming machine control chip, but there has also been a demand to prevent unauthorized access to the gaming machine control chip. On the other hand, the main control board case unit 100 of the present embodiment is provided so as to extend vertically inside the lid side bottom 131 of the case lid 130, and has a plurality of board insertion holes 103, 103,. And a plurality of protective wall portions 151, 151,... Surrounding the gaming machine control chip 104, and inside the main body side bottom 121 of the case body 120, and a plurality of protective wall portions 151, 151,. An anchor receiving part 122 to which the tip is fixed is provided. Thereby, since the periphery of the gaming machine control chip 104 is surrounded by a plurality of protective walls 151, 151,..., Unauthorized access to the gaming machine control chip 104 can be more reliably prevented, and the main control Unauthorized acts on the substrate 41 can be prevented more reliably. In addition, since the front ends of the protective wall portions 151, 151,... Are fixed to the fixing receiving portion 122 provided in the case main body 120, it is possible to more surely prevent unauthorized opening of the substrate case 110. Unauthorized acts on the main control board 41 can be prevented more reliably.

  Moreover, in this embodiment, the plate part 152 holding several protective wall parts 151, 151, ... is attached to the cover attaching part 132 of the case cover 130 from the outside. Are inserted into the plurality of case insertion holes 133, 133,..., So that each of the protection wall portions 151, 151,. 41 can be easily provided inside the lid-side bottom portion 131 to which 41 is attached.

  In the present embodiment, the printed circuit board 102 is attached to the inside of the lid-side bottom portion 131 so that the gaming machine control chip 104 faces the lid-side bottom portion 131 of the case lid 130, and a plurality of protective wall portions 151, 151, Is attached to a cover attaching portion 132 that is recessed outside the lid-side bottom portion 131. As a result, it is difficult to lift the gaming machine control chip 104 from the printed circuit board 102 by recessing a part of the case lid 130 and reducing the gap between the gaming machine control chip 104 and the gaming machine control chip 104. Unauthorized access to the gaming machine control chip 104 can be prevented while preventing unauthorized access.

  In the present embodiment, the plate portion 152 is fixedly attached to the cover attaching portion 132. As a result, the protective wall portion 151 and the plate portion 152 are fixed to the case main body 120 and the case lid 130 at a plurality of locations. Therefore, it takes much time to remove the chip cover 150 in order to access the gaming machine control chip 104. Many traces will remain. Therefore, unauthorized access to the gaming machine control chip 104 can be easily found.

  In the above-described embodiment, the six protective wall portions 151 of the chip cover 150 are provided. However, the present invention is not limited to this, and according to the size of the gaming machine control chip 104, It suffices if a plurality are provided so as to surround. .. May be formed integrally with the lid-side bottom 131 of the case lid 130. Further, the protection wall portions 151, 151,... May be formed on the body-side bottom 121 of the case body 120, and the fixing receiving portion 122 may be formed on the lid-side bottom 131 of the case lid 130.

  In the above-described embodiment, six upper locking holes 141 and lower locking holes 142, and six upper locking claws 143 and lower locking claws 144 are provided. However, the present invention is not limited to this. Instead, a plurality of cases may be provided according to the sizes of the case main body 120 and the case lid 130.

  In the above-described embodiment, the upper locking hole 141 and the lower locking hole 142 are provided in the upper inner wall 128 and the lower inner wall 129 of the case body 120, and the upper wall 134 and the lower wall 135 of the case lid 130. The upper locking claw 143 and the lower locking claw 144 are provided in the case, but the present invention is not limited to this, and the locking claw is provided on the upper inner wall portion 128 and the lower inner wall portion 129 of the case body 120, and the case lid Locking holes may be provided in the upper wall portion 134 and the lower wall portion 135 of 130.

  In the above-described embodiment, the upper locking hole 141 and the lower locking hole 142 are formed inside the upper outer wall 124 and the lower outer wall 125 (on the long side of the rectangular shape) of the case body 120. An upper inner wall portion 128 and a lower inner wall portion 129 are formed, and an upper side wall portion 134 and a lower side wall portion 135 (on which an upper locking claw 143 and a lower locking claw 144 are formed) of the case lid 130 are formed. Although it is configured to be adjacent to the outside of the inner wall portion 129, the present invention is not limited to this. For example, the left inner wall portion and the right inner wall (with the upper locking hole portion and the lower locking hole portion formed) inside the left outer wall portion 126 and the right outer wall portion 127 (on the short side of the rectangular shape) of the case body 120 Part (not shown) is formed, and the left side wall part 136 and the right side wall part 137 (on which the upper locking claw and the lower locking claw are formed) of the case lid 130 are outside the left inner wall part and the right inner wall part. You may comprise so that it may adjoin. In this case, the left guide wall portion and the right guide wall portion that are adjacent to the inside of the left outer wall portion 126 and the right outer wall portion 127 of the case main body 120 on the outside of the left wall portion 136 and the right wall portion 137 of the case lid 130 (see FIG. (Not shown), and an upper gap portion and a lower gap portion (not shown) are formed between the left side wall portion 136 and the right side wall portion 137 of the case lid 130 and the left guide wall portion and the right guide wall portion. The

  In the above-described embodiment, the case lid 130 includes the upper guide wall portion 138 and the lower guide wall portion 139, but is not limited thereto, and includes the upper guide wall portion 138 and the lower guide wall portion 139. You don't have to. In this case, the upper side wall part 134 and the lower side wall part 135 of the case lid 130 adjacent to the outside of the upper inner wall part 128 and the lower inner wall part 129 of the case main body 120, and the upper outer wall part 124 and the lower outer wall part 125 of the case main body 120. The upper gap portion and the lower gap portion are formed between the upper plate 145 and the lower gap portion, and the upper plate 145 and the lower plate 146 are inserted into the upper gap portion and the lower gap portion.

  In the above-described embodiment, the upper plate 145 and the lower plate 146 are formed in a two-layered plate shape, but the present invention is not limited to this, and can be fitted into the upper gap portion S1 and the lower gap portion S2. For example, it may be formed in a single plate shape.

  In the above-described embodiment, the upper plate 145 and the lower plate 146 are welded to the case lid 130. However, the present invention is not limited to this. For example, the upper plate 145 and the lower plate 146 may also be welded to the body-side bottom 121 of the case body 120. Any configuration may be used as long as it is fixed to at least one of the case main body 120 and the case lid 130. Moreover, when the fitting of the upper plate 145 and the lower plate 146 is strong, the welding may not be performed.

  In the above-described embodiment, the upper plate 145 and the lower plate 146 are welded to the case lid 130 by applying a solvent. However, the present invention is not limited to this. Further, a solvent is applied to the tips of the protective wall portions 151, 151,... Of the chip cover 150 and welded to the fixing receiving portion 122 of the case body 120, and a solvent is applied to the back side (front side) of the plate portion 152. Although it is welded to the cover attachment portion 132 of the case lid 130, the present invention is not limited to this. For example, the welding may be performed using other welding means such as heat welding. Further, as a fixing means other than welding, for example, a phenol resin-based, epoxy-based, or ethylene-based adhesive may be used for bonding.

  In the above-described embodiment, in addition to the closing holding mechanism 140, the board case 110 has an engaging portion (on the side of the case main body 120 when the case lid 130 is coupled to the case main body 120 in the closed state). (Not shown) and an engaging portion (not shown) formed on the case lid 130 side are engaged and connected to lock the substrate case 110 in a closed state, and the case lid 130 (or the case main body 120) and its engagement. A (conventional) unauthorized opening prevention mechanism may be provided that makes the substrate case 110 unopenable unless the connecting portion that connects the joint portion is separated using a tool such as a nipper.

  In the above-described embodiment, the main control board case unit 100 includes the closing holding mechanism 140 and the chip cover 150. However, the main control board case unit 100 may be configured to include either the closing holding mechanism 140 or the chip cover 150. Good. As the substrate case having only the chip cover 150 out of the closing holding mechanism 140 and the chip cover 150, for example, a slide opening / closing type substrate case in which the case lid is slidably moved with respect to the case body, or a case body On the other hand, the present invention can also be applied to a hinged open / close type substrate case in which the case lid is pivoted about the hinge axis to be attached / detached.

  In the above-described embodiment, the main control board case unit 100 has been described as an example of the board case unit according to the present invention. However, the present invention is not limited to this, and the production control board case unit 200, the payout control board case unit 300, etc. You may apply to. In this case, the chip cover (protective wall portion and plate portion) is not limited to a gaming machine control chip in which a CPU (Central Processing Unit), a ROM (Read Only Memory), etc. are integrated, It is possible to have a configuration surrounding a predetermined electronic component such as a ROM.

  In the above-described embodiment, the pachinko gaming machine PM has been described as an example of the gaming machine provided with the board case unit according to the present invention. However, the gaming machine PM is not limited to this example. The same effect can be applied to the slot machine and the like, and the same effect can be obtained.

PM Pachinko machine 41 Main control board (control board)
100 Main control board case unit (board case unit)
102 Printed Circuit Board 103 Board Insertion Hole 104 Game Machine Control Chip (Electronic Component)
110 Substrate case 120 Case body (first case member)
121 Main body side bottom 122 Adherence receiving part (adhering part)
124 Upper outer wall portion 125 Lower outer wall portion 126 Left outer wall portion 127 Right outer wall portion 128 Upper inner wall portion 129 Lower inner wall portion 130 Case lid (second case member)
131 Cover side bottom part 132 Cover attachment part (plate attachment part)
133 Case insertion hole 134 Upper side wall part 135 Lower side wall part 136 Left side wall part 137 Right side wall part 138 Upper guide wall part 139 Lower guide wall part 140 Closure holding mechanism 141 Upper locking hole part (first locking part)
142 Lower locking hole (first locking part)
143 Upper locking claw (second locking part)
144 Lower locking claw (second locking portion)
145 Upper plate (displacement prevention member)
146 Lower plate (displacement prevention member)
150 chip cover 151 protective wall 152 plate H1 opening S1 upper gap S2 lower gap

Claims (4)

A box-shaped first case member having an opening, and a box-shaped second case member coupled so as to close the opening with respect to the first case member; A board case unit that houses a control board inside a case formed by coupling the second case member so as to close the opening,
The control board includes a printed circuit board attached to the bottom inside of any one of the first case member and the second case member, and a predetermined electronic component disposed on the printed circuit board. A plurality of board insertion holes are formed around the predetermined electronic component on the board,
A plurality of first case members and second case members are provided so as to extend vertically inside one bottom portion, and are inserted into the plurality of board insertion holes of the printed circuit board to surround the predetermined electronic component. A protective wall of
A board case unit, comprising: a fixing portion provided inside the other bottom portion of the first case member and the second case member, to which tip ends of the plurality of protective wall portions are fixed. It further comprises a plate-like plate portion that holds the plurality of protective wall portions,
The one bottom portion of the first case member and the second case member is formed in the plate attachment portion and a plate attachment portion that is recessed from the one bottom portion and the plate portion is attached from the outside. The substrate case unit according to claim 1, further comprising a plurality of case insertion holes through which the plurality of protective wall portions held by the plate portion are inserted into the case. The printed circuit board is attached to the inside of the bottom of the second case member so that the predetermined electronic component faces the bottom of the second case member,
The plurality of protective wall portions are provided inside the bottom portion of the second case member,
The adhering portion is provided inside the bottom of the first case member;
The bottom portion of the second case member has the plate attachment portion recessed outside the bottom portion of the second case member, and the plurality of case insertion holes formed in the plate attachment portion. The substrate case unit according to claim 2.   4. The substrate case unit according to claim 2, wherein the plate part is fixedly attached to the plate attaching part.

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