JP2014028115A - Board case unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a board case unit capable of more surely preventing fraudulent act to a storage element of a control board.SOLUTION: In a sub-board case unit 207 constructed by storing a sub-board 260 in the interior of a case formed by coupling a rear case 30 and a front case 220, a sub-main board 260A constituting a sub-board 260 includes: a sub-main printed board 261; a sub-ROM printed board 271 provided spaced from the sub-main printed board 261 on the surface of the sub-main printed board 261, electrically connected to the sub-main printed board 261 and smaller than the sub-main printed board 261; and a program ROM 274 provided on the surface of the sub-ROM printed board 271. The inner surface of the front case 220 is recessed at a part opposite to the program ROM 274 to cover the program ROM 274.

Description

  The present invention relates to a board case unit configured to house a control board on which a control circuit for controlling the operation of a device provided in a gaming machine is formed.

  Conventionally, a gaming machine such as a slot machine has a gaming device such as a rotating reel necessary for playing a game, a main control device having a control circuit that controls the operation of the gaming device, a liquid crystal display device that performs a game effect, etc. A sub-control device having a control circuit for controlling the operation of the effect device, and a power supply device for supplying power to the gaming device and the control board are provided. Among these, the control devices such as the main control device and the sub control device include a ROM that stores a program for controlling the game operation and a hardware such as a CPU that includes an LSI having a high-speed calculation function, and is stored in the ROM. Control is performed by executing software such as a program on a CPU. For this reason, if it is replaced with a ROM in which an illegal program that can easily acquire game media such as medals is written, a large amount of game media will be illegally acquired.

  In order to prevent such illegal acts, a box-shaped board case is provided to store a control board on which a control circuit, which is a main part of the control device, is formed, and the control board is placed inside and the closed board case is sealed. It is sealed with a stop pin or the like. Here, as a sealing pin for sealing the substrate case, there has been proposed a substrate case that employs a special pin whose management data is engraved on its head (see, for example, Patent Document 1). If such a special pin is used for sealing the substrate case, if the special pin is destroyed and the substrate case is opened, then the substrate case cannot be sealed with the broken special pin. If you use a pin to seal the board case, the head management data will be different, so if you check the suitability of the head management data, you can quickly confirm that the board case has been opened improperly. Can grasp.

  On the other hand, in the case of the substrate case as described above, a special pin is destroyed if a hole or the like is made in the bottom surface on the back side of the substrate case that is normally hidden and the sealing part on the substrate case side is destroyed from the back side of the substrate case. In this case, there is a problem that the substrate case can be opened, and if it is viewed from the front side, it is difficult to confirm the broken portion of the substrate case, and there is a possibility that the unauthorized opening of the substrate case may be overlooked. In order to solve this problem, a support shaft protrudes from the side surface of the substrate case, and a support arm that rotatably supports the support shaft is provided on the gaming machine side, and the substrate case is swingably supported by the support arm. By swinging the substrate case, the bottom surface of the back side of the substrate case is turned to the front side so that the back side of the substrate case can be directly seen, thereby making it possible to easily see the broken part formed on the back side of the substrate case. A gaming machine is known in which an unauthorized opening of a substrate case can be reliably detected (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 11-76569 JP 2010-240066 A

  However, there is a problem in that an improper deformation force is applied to the substrate case to form a gap between the case members constituting the substrate case, and the ROM (nonvolatile memory element) of the control board is illegally accessed from this gap. there were.

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

  To achieve such an object, a substrate case unit according to the present invention includes a first case member and a second case member coupled to the first case member, and the first case member and the second case. A board case unit configured by housing a control board in a case formed by being coupled to a member, wherein the control board is attached to the first case member or the second case member. A printed circuit board and a second printed circuit board that is spaced apart from the first printed circuit board and electrically connected to the first printed circuit board on the surface of the first printed circuit board, and is smaller than the first printed circuit board; A storage element provided on the second printed circuit board, and an inner surface of the case member facing the second printed circuit board among the first case member and the second case member is Recessed is formed so as to cover the second printed circuit board in the second printed circuit board portion facing the.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to prevent the unauthorized act with respect to the memory element of a control board more reliably.

It is an external front view of the slot machine. It is a front view showing the inside of the slot machine. It is a disassembled perspective view of a sub board | substrate case unit and a liquid crystal unit. It is a disassembled perspective view of a sub board | substrate case unit and a liquid crystal unit. It is a perspective view of a sub board | substrate case unit. It is a side view of the sub board | substrate case unit which raised the fastener. It is a perspective view of the sub board | substrate case unit which raised the fastener. It is a disassembled perspective view which shows the hinge of a sub board | substrate case unit. It is a perspective view which shows a connector cover. It is a perspective view which shows attachment of a connector cover. It is a top view of the sub board | substrate case unit which attached the connector cover. It is a perspective view of the liquid crystal unit which rotated the sub board | substrate case unit. It is a perspective view which shows the modification of a sub board | substrate case unit. It is a block diagram which shows the structural example of a sub board | substrate. It is a perspective view which shows the sub board | substrate case unit of 2nd Embodiment. It is a plane sectional view showing a sub board case unit of a 2nd embodiment. It is a disassembled perspective view which shows the sub board | substrate of 2nd Embodiment. It is a perspective view which shows the front case of 2nd Embodiment. It is a perspective view which shows the sub board | substrate case unit of 3rd Embodiment. It is a plane sectional view showing a sub substrate case unit of a 3rd embodiment. It is a disassembled perspective view which shows the sub board | substrate of 3rd Embodiment.

[Slot machine 1]
DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings, taking a slot machine as an example of a gaming machine. As shown in FIG. 1, the slot machine 1 has a plate-like front door 3 attached to the front side of a box-shaped housing 2 so as to be freely opened and closed. A reel unit 6 having a single rotating reel 6A, a hopper unit 8 for storing and paying out medals, a substrate case unit 7 containing a control board for controlling the operation of the slot machine 1, and a main power source of the slot machine 1 The power supply unit that turns on and off is housed and fixed.

  The front door 3 is attached through a hinge (not shown) so that the front opening of the housing 2 can be freely opened and closed. As shown in FIG. 1, the central portion in the height direction is related to the operation of the slot machine 1. The operation unit 5 is provided with operation switches and the like. A front panel 3A having a symbol display window 3F through which the rotary reel 6A can be viewed from the front side is provided above the operation unit 5. Further, below the operation unit 5, a lower panel 3 </ b> B displaying characters and the like corresponding to the model of the slot machine 1 is provided. Further, below the lower panel 3B and below the front door 3, a medal payout port 3E for discharging medals paid out from the hopper unit 8, and a medal discharged from the medal payout port 3E can be stored. A dish 3D is formed.

  In addition, the front door 3 is provided with an effect device 9 for performing various effects accompanying the game. As the effect device 9, a lamp 9A disposed at the top of the front door 3, a speaker 9B disposed on the back wall of the lower plate 3D, and a liquid crystal unit 9C disposed above the front panel 3A are provided. The operation unit 5 includes a medal insertion slot 5A for inserting medals, a bet switch 5B for replacing medals stored as credits with inserted medals, and a lever-like start switch for starting rotation of the rotating reel 6A. 5C, a stop switch 5D including three button switches for individually stopping the rotation of the rotary reel 6A, and a settlement switch 5E for paying out credited medals are provided.

  As shown in FIG. 2, a medal selector 4 for detecting a medal inserted from the medal insertion slot 5A is built in the back side of the front door 3. The board case unit 7 is composed of a circuit board having various electronic components such as ICs mounted on the surface thereof, and a case for housing the circuit board. As the substrate case unit 7, a main substrate case unit 7A and a sub substrate case unit 7B are provided. As shown in FIG. 2, the main board case unit 7A is disposed above the reel unit 6, and stores the main board 100 in the main board case. The main board 100 is a circuit board including various electronic components such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory), and the CPU reads a program stored in the ROM. Thus, it functions as a main control device for controlling the game of the slot machine 1.

  As shown in FIG. 2, the sub board case unit 7B is disposed above the back surface of the front door 3 and on the back side of the liquid crystal unit 9C, and the sub board case 110 is accommodated in the sub board case 10 ( (See FIGS. 7 and 8). Although not shown in the drawing, electronic components such as a CPU, ROM, and RAM are also mounted on the sub-board 110, and the CPU reads a program stored in the ROM based on an input signal from the main board 100, thereby producing an effect. It functions as a sub-control device for controlling the operation of the device 9.

[Outline of operation of slot machine 1]
The slot machine 1 having the above configuration is configured to be able to place (bet) a maximum of 3 medals in one game and store up to 50 medals inserted from the medal insertion slot 5A as credits. Has been. When a medal is credited, the numerical value is displayed on a credit display section (not shown), and every time the bet switch 5B is operated, a predetermined number of 1 to 3 is subtracted from the display of the credit display section. The medal is considered to be bet.

  Then, based on the operation of the start switch 5C, a winning lottery is performed and the rotation reel 6A starts to rotate. By operating the corresponding stop switch 5D while the rotating reel 6A is rotating, the rotating reel 6A stops rotating. Then, when all the three rotating reels 6A are stopped, if the symbols constituting the winning combination of each rotating reel 6A are displayed in an arrangement corresponding to the winning combination, the number of sheets corresponding to the winning combination is displayed from the hopper unit 8. It is formed so that medals can be paid out or shifted to advantageous games such as bonus games.

[First embodiment of sub-board case unit]
Next, the sub substrate case unit 7B provided in the liquid crystal unit 9C will be described in detail. Here, the liquid crystal unit 9 </ b> C is obtained by housing and fixing a liquid crystal display device 80 in a liquid crystal case 90 as shown in FIGS. 3 and 4. The liquid crystal display device 80 is a ready-made liquid crystal module housed in an outer case, and the liquid crystal case 90 functions as a fixed base for fixing the liquid crystal display device 80 to the front door 3 and fixing the sub-board case unit 7B. To do. The liquid crystal case 90 has side plates formed on the four sides of the surface plate 91 and has a box shape in which the opposite side of the surface plate 91 opens. Of the side plates of the surface plate 91, the side plates positioned on the left and right are provided with fixing portions 92 having screw holes for fixing the liquid crystal unit 9C to the front door 3, and the liquid crystal display device 80 is provided in the opening. The liquid crystal screen 81 is fixed from the back side of the front door 3 so that the liquid crystal screen 81 is visible from the front side of the front door 3 (see FIG. 1). Further, as shown in FIG. 3, at one side end portion of the surface plate 91, a bearing portion 93 as a hinge portion for supporting the sub substrate case unit 7B so as to be rotatable in the horizontal direction is provided in the vertical direction. Two are formed side by side, and a fastener 95 is attached to the other side end of the surface plate 91 (see FIGS. 5 to 7). One end of the fastener 95 is attached to a shaft support portion 96 formed on the surface plate 91 so as to be rotatable in the vertical direction, and the other end is locked to a locking piece 97 provided below the shaft support portion 96. Be able to. The operation of the fastener 95 will be described later.

  As shown in FIGS. 3 and 4, the sub board case unit 7 </ b> B is roughly composed of a sub board case 10, a sub board 110 and a shield plate 60 housed in the sub board case 10. ing. In the following embodiments, the sub-board case unit 7B is attached to the front door 3 unless otherwise specified in the directions of the top, bottom, left, right, and back (front side, back side) in the description of the constituent members of the sub-board case unit 7B. The direction when the front door 3 is viewed from the rear side in the attached state is shown. That is, in FIG. 3, the lower left side is the front, and in FIG. 4, the upper left is the front.

[Sub-board 110 and shield plate 60]
In the first embodiment, as shown in FIGS. 3 and 4, as the sub board 110, two boards, a sub main board 110 </ b> A and a sub sub board 110 </ b> B, are provided. The sub-main board 110A is for inputting an output signal from the main board 100 and performing effect determination processing such as effect lottery. The sub sub board 110B is for operating the effect device 9 such as the liquid crystal display device 80 based on an output command from the sub main board 110A.

  As shown in FIG. 3, a main connector 120 is provided at the upper right end of the sub main board 110A, and a connection connector 130 is provided at the left end of the sub main board 110A. The main connector 120 is electrically connected to the main board 100 by mounting a connector (not shown) connected to the main board 100 (see FIG. 2) and the main harness. As shown in FIG. 3, a connection connector 131 that can be connected to the connection connector 130 of the sub main board 110A is provided at the right end of the sub sub board 110B. By connecting the connector 130 and connector 131 to each other (or via a harness), the sub main board 110A and the sub sub board 110B are electrically connected. A sub connector 140 is provided at the left end of the sub sub board 110B, and a connector (not shown) connected to the stage device 9 such as the liquid crystal display device 80 by a harness is attached to the sub connector 140. By doing so, the sub connector 140 and the rendering device 9 are electrically connected.

  Further, the effect ROM board 150 and the sound board 155 are mounted substantially in parallel on the surface of the sub sub board 110B and are electrically connected to the sub sub board 110B. The effect ROM board 150 and the sound board 155 are together with the sub board 110. The sub board case 10 is housed inside. The effect ROM board 150 includes an image ROM 152 in which effect image data is stored, and an effect ROM printed board 151 on which the image ROM 152 is mounted. The effect ROM board 150 is supported by the first bracket member 154 (see FIG. 17) so as to be substantially parallel to the sub-sub board 110B, and is provided in the gap between the effect ROM board 150 and the sub-sub board 110B. A board connector (not shown) is covered with the first bracket member 154. The image ROM 152 is attached to a chip socket 153 (see FIG. 17) provided on the surface of the effect ROM printed board 151.

  The sound board 155 includes a sound IC 157 that outputs a sound signal (audio signal), a sound ROM 158 that stores sound signal data, and a sound printed board 156 on which the sound IC 157 and the sound ROM 158 are mounted. Is done. The audio board 155 is supported substantially in parallel with the second bracket member 160 (see FIG. 17) away from the sub-sub board 110B, and is connected to the board provided in the gap between the audio board 155 and the sub-sub board 110B. A connector (not shown) is covered with the second bracket member 160. The sound IC 157 is directly attached to the surface of the sound printed circuit board 156 by soldering or the like, and the sound ROM 158 is attached to a chip socket 159 (see FIG. 17) provided on the surface of the sound printed circuit board 156.

  The shield plate 60 is a metal plate to which the sub board 110 is attached and fixed to the back case 30, and is for preventing electrostatic noise of electronic components. As shown in FIG. 3, an opening 61 that penetrates in the front-rear direction is formed in the shield plate 60 where the sub-main board 110 </ b> A is fixed. A transparent film 70 is installed. That is, the opening 61 is closed from the back side by the conductive transparent film 70. Here, when the sub main board 110 </ b> A is fixed to the shield plate 60, the back side of the sub main board 110 </ b> A can be visually recognized from the back side of the shield plate 60 through the opening 61. Further, the attenuation of the shielding effect due to the formation of the opening 61 is offset by the conductive transparent film 70.

  The sub board 110 is fitted into the shield plate 60 in a state where the sub main board 110A and the sub sub board 110B are connected, and is set at an appropriate position of the back case 30 on which the conductive transparent film 70 is disposed, and the back case 30 and the front case 20 are placed. By fixing with screws, the shield plate 60 and the sub-board case 10 are fixed integrally. An external connector (connector connected to the main connector 120 or the sub connector 140) connected to the sub board 110 serves as a ground wire, and the sub board 110 is neutralized.

[Sub-board case 10]
The sub-board case 10 includes a transparent back case 30 attached to the surface plate 91 of the liquid crystal case 90 and a transparent front case 20 fixed to the front side of the back case 30. By combining them, a box-shaped case is formed as shown in FIG.

  The front case 20 has side plates formed on the four sides of the front plate 21 as shown in FIG. 3, and has a box shape with the back side opened as shown in FIG. A notch 22 is formed in the upper right corner of the front case 20, and a connector cover 50 is attached to the notch 22. The notch 22 is for allowing a main harness (not shown) to be connected to the main connector 120 of the sub-main board 110A, and when the front case 20 and the back case 30 are fixed, the sub-board case 10 An opening is formed at the upper right corner of the front (see FIG. 10B). Further, the front plate 21 of the front case 20 is formed with a plurality of recesses 23, and screw insertion holes 23 </ b> A (see FIG. 4) are formed in the bottoms of the recesses 23. The screw insertion hole 23 </ b> A is provided at a position that matches the screw hole 34 provided in the back case 30 when the front case 20 and the back case 30 are aligned at an appropriate position. Further, a connector opening 24 is formed at the left end of the front case 20. The connector opening 24 is for enabling connection of a sub harness (not shown) to the sub connector 140 of the sub sub board 110B.

  Also, the front plate 21 of the front case 20 is formed with a first cover portion 25A that covers the effect ROM substrate 150 and a second cover portion 25B that covers the audio substrate 155. The first cover portion 25 </ b> A is formed so as to protrude forward from the front plate 21, and the inner surface of the first cover portion 25 </ b> A is recessed from the inner surface of the front plate 21 so as to face the effect ROM substrate 150. The second cover portion 25 </ b> B is formed to protrude forward from the front plate 21, and the inner surface of the second cover portion 25 </ b> B is recessed from the inner surface of the front plate 21 so as to face the audio board 155.

  The back case 30 has side plates formed on the four sides of the back plate 31 as shown in FIG. 3, and has a box shape with the front side opened as shown in FIG. As described above, the back plate 31 is provided with the screw hole 34 that matches the screw insertion hole 23A of the front case 20. In addition, on the right side surface, which is one end portion of the back case 30, two hinge shafts 32 are arranged in the vertical direction as hinge portions that can be engaged with the bearing portions 93 provided on the surface plate 91 of the liquid crystal case 90. Is provided. Further, a fixing portion 35 for fixing the end portion of the back case 30 on the side opposite to the hinge portion to the liquid crystal case 90 is provided on the left side surface of the back case 30, that is, the other end portion on the opposite side of the one end portion. The fixing portion 35 is a bracket having a screw hole, and the surface plate 91 of the liquid crystal case 90 has a screw hole of the fixing portion 35 when the sub-board case unit 7B is rotated to a position parallel to the liquid crystal case 90. A matching screw hole 91A is provided.

  Here, as shown in FIG. 8, the bearing portion 93 is formed by forming a shaft hole 93 </ b> A in a projecting portion 93 </ b> B protruding from the front surface plate 91 of the liquid crystal case 90 to the front side, and the hinge shaft 32 is formed on the back case. A shaft portion 32A that hangs down from the lower surface is formed on a protrusion 32B that protrudes laterally from the left side plate of 30. The shaft portion 32A is inserted into the shaft hole 93A of the two overhang portions 93 from the upper side, whereby the bearing portion 93 and the hinge shaft 32 are engaged. The structure of the hinge portion is not limited to that shown in the figure, and a shaft portion may be provided on the liquid crystal case 90 side and a bearing portion may be provided on the back case 30 side. Further, as shown in FIG. 4, six cylindrical projections 33 are formed on the back surface of the back plate 31 of the back case 30, and the front plate 91 of the liquid crystal case 90 is shown in FIG. Thus, a substantially circular locking recess 94 having a larger diameter than the protrusion 33 is formed (see FIG. 12). The locking recess 94 is located at a position where the projection 33 can be inserted when the back case 30 is attached to the liquid crystal case 90 via the hinge portion and the back plate 31 of the back case 30 and the front plate 91 of the liquid crystal case 90 are joined. Is provided. This is because the protrusion 33 fits into the locking recess 94 to receive the load of the sub-board case 7B on the entire surface plate 91 and to prevent the hinge portion from being damaged by dispersing the force applied to the hinge portion. is there.

  The front case 20 and the back case 30 are in a state in which a shield plate 60 and a sub-board 110, which will be described later, are housed. Thus, the shield plate 60 and the sub-board 110 are integrally fixed. That is, the shield plate 60 and the sub board 110 are also provided with insertion holes through which screws can pass. Then, after screwing, the sealing cover 40 is further fitted into the concave portion 23 of the front case 20 so as to be unopenable. The sealing cover 40 has a claw portion that can be engaged with an engagement groove provided on the inner periphery of the recess 23. Once the claw portion engages with the engagement groove, the sealing cover 40 is moved to the front case. 20 is fixed in a non-removable manner. For this reason, the screws fixing the front case 20 and the back case 30 become inaccessible, and the front case 20 and the back case 30 are sealed.

  Here, from the back side of the sub-board case 10 containing the shield plate 60 and the sub-board 110, the back side of the sub-main board 110A is opened from the opening 61 of the shield plate 60 through the transparent back case 30 and the conductive transparent film 70. Can be seen. The connector cover 50 is also fixed to the board case 10 so as not to be removed, and the front case 20, the back case 30, the shield plate 60, and the sub board 110 are integrally fixed by screws for fixing the connector cover 50. This will be described later.

[Connector cover 50]
Next, the connector cover 50 will be described in detail. As described above, since the notch 22 is formed in the front case 20, the main connector 120 is exposed from the sub-board case 10 in which the sub-board 110 is accommodated (see FIG. 10B). . Therefore, the main connector 120 is protected from being inaccessible by fitting the connector cover 50 into the notch 22 and sealing it. As shown in FIGS. 3 and 9, the connector cover 50 is a block-like member that can be fitted into the notch 22 of the front case 20, and has a circular shape on the front side as shown in FIG. The recess 51 is formed. A screw insertion hole 51A is formed in the bottom of the recess 51 as shown in FIG. The screw insertion hole 51A is provided at a position that matches the screw hole 34 ′ (see FIG. 3) provided in the back case 30 when the connector cover 50 is fitted into the cutout portion 22 in a state where the sub-board case 10 is assembled. ing. When a screw is inserted from the screw insertion hole 51A, it reaches the screw hole 34 'through the screw insertion hole provided in the sub board 110 and the shield plate 60, and the connector cover 50 is fixed to the sub board case 10 by tightening the screw. Is done.

  Further, a sealing cover 41 can be fitted into the recess 51, and the connector cover 50 is fixed to the board case 10 by the sealing cover 41 so as not to be removed. As with the sealing cover 40, the sealing cover 41 has a claw portion that can be engaged with an engagement groove provided on the inner periphery of the recess 51, and once the claw portion engages with the engagement groove. The sealing cover 41 is fixed to the connector cover 50 so as not to be removed. For this reason, the main connector 120 is covered with the connector cover 50, and the board case 10 (back case 30) and the screw fixing the connector cover 50 are inaccessible. The main harness connected to the main connector 120 is led out of the case from the gap between the back surface of the connector cover 50 and the front side end portion of the back case 30.

  Further, a lock piece 52 that protrudes toward the back side is provided at the back side end of the connector cover 50. The lock piece 52 is a movement preventing portion, and when the connector cover 50 is attached to the sub-board case 10 attached to the liquid crystal case 90, as shown in FIG. 10 (A) and FIG. It is formed so as to be located below the portion 93. Further, as shown in FIG. 11 (B), the lock piece 52 maintains the lower position of the bearing portion 93 even when the sub substrate case 10 is rotated around the hinge portion. That is, the lock piece 52 is in contact with or close to the bearing portion 93 without hindering the rotation of the sub board case unit 7B, and in the hinge releasing direction (upward in the present embodiment) of the sub board case unit 7B. It is formed to be able to prevent movement. By attaching the connector cover 50, the bearing portion 93 is sandwiched between the lock piece 52 and the projection 32B of the hinge shaft 32, and the shaft portion 32A of the hinge shaft 32 is extracted from the shaft hole 93A of the bearing portion 93. I can't do that. For this reason, in a state where the connector cover 50 is attached, the sub board case unit 7B cannot be moved in the hinge releasing direction, and as a result, the sub board case unit 7B cannot be removed from the liquid crystal case 90.

[Installation and inspection of sub-board case unit 7B]
When the sub-board case unit 7B having the above configuration is attached to the liquid crystal case 90, the hinge shaft 32 of the back case 30 is locked to the bearing of the liquid crystal case 90 without the connector cover 50 attached. Then, as shown in FIG. 12, the sub-board case unit 7 </ b> B is rotated so that the back surface of the back case 30 and the surface plate 91 of the liquid crystal case 90 are aligned with the fastener 95 rotated upward. At this time, the locking protrusion 33 of the back case 30 is fitted into the locking recess 94 of the liquid crystal case 90. When the locking projection 33 is completely fitted in the locking recess 94, the back surface of the back case 30 and the front surface plate 91 of the liquid crystal case 90 come into contact with or close to each other and are in a parallel state. At this time, since the fixing portion 35 of the back case 30 and the screw hole 91A of the surface plate 91 of the liquid crystal case 90 match, they are fixed by a fixing screw. Then, the fastener 95 is rotated downward and locked to the locking piece 97 (see FIG. 5). As a result, the end portion of the sub-board case unit 7B on the side opposite to the hinge is fixed, the connector opening 24 of the front case 20 is covered, and the connection portion of the sub-connector 140 is covered. Further, by attaching the connector cover 50 and fixing the sealing cover 41, the connecting portion of the main connector 120 is covered with inaccessibility, and the hinge portion is locked with the lock piece 52 so as not to be removed. In order to remove the sub-board case unit 7B from the liquid crystal case 90, the sealing cover 41 must be destroyed and the connector cover 50 must be removed, or the hinge portion must be destroyed. Remain.

  When inspecting the back surface of the sub-board case unit 7B, the locking piece 97 is pushed down to release the locking with the fastener 95, and the fastener 95 is rotated upward. Then, the screw that fixes the fixing portion 35 is removed, and the sub-board case unit 7B is rotated in a direction in which the back surface of the back case 30 and the surface plate 91 of the liquid crystal case 90 are separated. As described above, from the back surface of the back case 30, the back surface of the sub-main board 110A can be visually recognized, and when an illegal part or the like is attached, it can be confirmed at a glance.

[Effect of the first embodiment]
As described above, according to the present embodiment, the sub-board case unit 7B is attached to the liquid crystal case 90 that is a fixed base via a hinge. Can be visually recognized, and it is easy to find attachment of an unauthorized board or an unauthorized part to the back side of the sub-board 110. Then, the attenuation of the shielding effect due to the provision of the opening 61 in the metal shield plate 60 in order to make the back side of the sub-board 110 visible can be eliminated by using the conductive transparent film 70.

  Further, in order to reduce the load applied to the hinge portion, the engagement protrusion 33 provided on the back case 30 of the sub-board case 10 and the engagement recess 94 provided on the surface plate 91 of the liquid crystal case 90 are engaged. ing. Thereby, it is possible to prevent the hinge portion from being damaged due to the weight of the sub-board case unit 7B, and to firmly fix the sub-board case unit 7B and the liquid crystal case 90. The back case 30 may be provided with a recess, and the surface plate 91 of the liquid crystal case 90 may be provided with a protrusion. The end portion of the sub-board case 10 on the side opposite to the hinge is locked by a fastener 95, and the connection portion of the sub-connector 140 can be protected by the fastener 95. Then, by providing the connector cover 50 for protecting the main connector 120 with a function as a lock of the hinge portion, in addition to unauthorized insertion / removal of the main connector 120 with a single component, the sub-board case unit 7B It is possible to prevent unauthorized removal of the device.

[Modification of sub-board case unit]
In the first embodiment described above, the notch 22 is provided in a part of the front case 20 to form the connector connection opening in the sub-board case 10, but the connector connection opening is the hinge portion. As long as it is located in the vicinity, it may be an opening provided on the front plate 21 of the front case 20 or an opening provided on a side plate of the front case 20 or the back case 30.

  Further, when the connector cover 50 is attached to the sub-board case 10, the lock piece 52 is positioned below the bearing portion 93 so that the shaft portion 32 </ b> A of the hinge shaft 32 cannot be removed from the shaft hole 93 </ b> A of the bearing portion 93. However, the function of the lock piece 52 is not limited to that. For example, in the hinge structure, the shaft portion 32A located on the lower side is inserted into the shaft hole 93A of the bearing portion 93 located on the lower side from the upper side, and the shaft portion 32A located on the upper side is inserted into the shaft of the bearing portion 93 located on the upper side. When the connector 93 is attached to the hole 93 </ b> A from the lower side, the lock piece 52 is positioned above the bearing portion 93 when the connector cover 50 is attached, and the shaft portion 32 </ b> A of the hinge shaft 32 is the bearing portion 93. The shaft hole 93A can be prevented from coming off. Further, the shape of the lock piece 52 is not limited to the illustrated shape, and can be appropriately changed according to the shape of the hinge portion. In short, by attaching the connector cover 50 to the sub-board case 10, a part of the connector cover 50 can come into contact with a part of the hinge portion, and the sub-board case unit 7 </ b> B can be rotated without hindering the rotation. The substrate case unit 7B may be formed so as to be prevented from moving in the hinge engagement release direction.

  Further, in the first embodiment described above, the anti-hinge side of the sub-board case unit 7B is fixed by the fastener 95 provided in the liquid crystal case 90. However, as shown in FIG. A fixing portion 35 to the liquid crystal case 90 is provided on the side surface of the back case 30, and a fixing portion 98 is provided at a position corresponding to the fixing portion 35 on the surface plate 91 of the liquid crystal case 90. You may make it fix with the crimping pin 45. FIG. In this case, when removing the sub-board case unit 7B or checking the back surface of the sub-board case unit 7B, the head of the caulking pin 45 must be destroyed and the caulking pin 45 must be removed. In the case of removal, a trace remains. Further, as shown in FIG. 13, a cooling fan 25 may be provided in the sub-board case 10.

  In the first embodiment described above, the effect ROM substrate 150 may be arranged such that the image ROM 152 is accommodated inside the first cover portion 25A. Thereby, the inner surface of the front case 20 is formed so as to be recessed and cover the image ROM 152 in a portion (first cover portion 25A) facing the effect ROM board 150 (effect ROM printed circuit board 151). Therefore, even if an inappropriate deformation force is applied to the sub-board case 10 and a gap is formed between the front case 20 and the back case 30, the image ROM 152 is covered by the first cover portion 25A. Unauthorized access to the image ROM 152 from the gap of the back case 30 can be prevented. At this time, the first bracket member 154 is formed so as to surround the gap between the effect ROM board 150 (effect ROM printed board 151) and the sub-sub board 110B, thereby producing the effect from the gap between the front case 20 and the back case 30. Unauthorized access to the back side of the ROM substrate 150 can be prevented.

  In the first embodiment described above, the sound board 155 may be arranged such that the sound IC 157 and the sound ROM 158 are accommodated inside the second cover portion 25B. As a result, the inner surface of the front case 20 is formed so as to cover the sound IC 157 and the sound ROM 158 in a portion (second cover portion 25B) facing the sound board 155 (the sound printed board 156). Therefore, even if an improper deformation force is applied to the sub-board case 10 and a gap is formed between the front case 20 and the back case 30, the sound IC 157 and the sound ROM 158 are covered by the second cover portion 25B. It is possible to prevent unauthorized access to the sound IC 157 and the sound ROM 158 from the gap between the case 20 and the back case 30. Further, at this time, the second bracket member 160 is formed so as to surround the gap between the audio board 155 (audio print board 156) and the sub-sub board 110B, so that the audio board 155 from the gap between the front case 20 and the back case 30. It is possible to prevent unauthorized access to the back side of the. In addition, since the sound IC 157 is provided along with the sound ROM 158 on the sound board 155 (the sound printed circuit board 156), if it is necessary to replace the sound IC 157 according to the (sound) specifications of the slot machine 1, it is necessary to replace the sound IC 157. Since only the substrate 155 needs to be replaced and it is not necessary to replace the entire sub-substrate 110, it is possible to reduce the replacement cost of each control substrate.

[Sub-board circuit configuration]
The sub board 110 is not limited to the above-described embodiment, but the circuit configuration of the sub board 110 will be described with reference to FIG. As described above, the sub-substrate 110 includes two substrates, that is, the sub-main substrate 110A and the sub-sub substrate 110B.

  The sub main board 110A includes electronic components (electronic elements) such as a CPU, ROM, and RAM, electrical parts such as the connection connector 130 and the main connector 120 described above, and a sub main printed circuit board 111 on which these are mounted (see FIG. 3). Reference). The sub-sub board 110B is electrically connected to the sub-main board 110A via connection connectors 130 and 131, and the main board 100 is electrically connected via the main connector 120. In addition, the speaker 9B, the power supply board 160, and the various lamp boards 165 are electrically connected to the sub main board 110A through a connection connector (not shown). The sub main board 110A includes a sub main CPU 112, an extended work RAM 113, a program ROM 114A, and a digital amplifier 115 as electronic components.

  The sub main CPU 112 incorporates a work RAM (not shown). An extended work RAM 113, a program ROM 114A, and the like are electrically connected to the sub main CPU 112. The extended work RAM 113 is supplied with backup power from a backup battery (not shown). A predetermined control program is stored in the program ROM 114A. The sub main CPU 112 performs processing based on a control program stored in the program ROM 114A. For example, the sub-main CPU 112 performs effect determination processing such as effect lottery based on output information (command data) from the main substrate 100, and emits a light emission control signal (such as the lamp 9A) according to the effect to the various lamp substrates 165. Output. The digital amplifier 115 amplifies the audio signal output from the audio board 155 and outputs it to the speaker 9B.

  The relationship between the data stored in the program ROM 114A and the address is set to be changeable for each slot machine 1. As a result, forgery of the program ROM 114A becomes difficult, so that illegal acts on the program ROM 114A can be prevented. Although not shown, the sub-main board 110A detects whether or not the real-time clock (not shown) for measuring time and whether the supply voltage from the power board 160 to the sub board 110 is lower than a predetermined voltage value. Power interruption detection circuit (not shown), an RTC interrupt circuit (not shown) that performs interrupt processing at the end of timing of a real-time clock (not shown), and an amplifier abnormality that detects an abnormality in the digital amplifier 115 and performs interrupt processing A detection circuit (not shown), a reset IC (not shown) that outputs a reset signal immediately after power-on, and the like are provided.

  The sub-sub board 110B includes electronic components (electronic elements) such as a CPU, a ROM, and a RAM, electrical parts such as the connection connector 131 and the sub-connector 140, and a sub-sub print board 116 on which these are mounted (see FIG. 3). It consists of. The sub main board 110A is electrically connected to the sub sub board 110B via the connection connectors 130 and 131, and the liquid crystal display device 80 is electrically connected via the sub connector 140 and the image display connection board 170. In addition, the effect ROM board 150 and the audio board 155 are electrically connected to the sub-sub board 110B via a board connector (not shown). The sub-sub board 110B includes a sub-sub CPU 117, a VRAM (Video RAM) 118, a VDP (Video Display Processor) 119, and a program ROM 114B as electronic components.

  The sub-sub CPU 117 includes a work RAM (not shown). The sub-sub CPU 117 is electrically connected to the VRAM 118 and VDP 119 and the program ROM 114B. A predetermined control program is stored in the program ROM 114B. The sub sub CPU 117 performs processing based on the control program stored in the program ROM 114B. For example, the sub sub CPU 117 outputs an image control signal corresponding to the effect to the VDP 119 based on the effect mode determined by the sub main CPU 112, and outputs an audio control signal corresponding to the effect to the audio board 155.

  A VRAM 118 and an effect ROM board 150 are electrically connected to the VDP 119. The VDP 119 outputs an image signal (video signal) to the image display connection board 170 in accordance with an image control signal from the sub sub CPU 117. The sub display substrate 110 </ b> B and the liquid crystal display device 80 are electrically connected to the image display connection substrate 170. The image display connection board 170 shapes the signal waveform of the image signal (LVDS signal) output from the sub-sub board 110 </ b> B into a desired signal waveform by an LVDS repeater (not shown), and outputs it to the liquid crystal display device 80.

  The sound IC 157 of the audio board 155 outputs an audio signal (audio signal) to the sub sub board 110B according to the audio control signal from the sub sub board 110B. The audio signal output from the audio board 155 to the sub sub board 110B is transmitted to the digital amplifier 115 of the sub main board 110A. As described above, the digital amplifier 115 amplifies the audio signal output from the sound IC 157 of the audio board 155 and outputs it to the speaker 9B.

  Of the sub main board 110A and the sub sub board 110B, the sub sub board 110B (and the effect ROM board 150 and the audio board 155) can be used in a gaming machine (for example, a pachinko machine) other than the slot machine 1. Has been. In this way, by using the sub-sub board 110B (and the production ROM board 150 and the audio board 155) in common, a reduction in manufacturing cost can be expected. In addition, the production ROM board 150 and the audio board 155 are electrically connected to the sub sub board 110B via a board connector (not shown) provided on the surface of the sub sub board 110B. As a result, the production ROM board 150 and the audio board 155 can be easily replaced in accordance with the change in the capacity of the image ROM 152 or the change in the specifications of the sound IC 157, and the electronic components (electronic components) used in accordance with the specifications of the slot machine 1 The element) can be easily changed.

[Second Embodiment of Sub-Board Case Unit]
Next, a second embodiment of the sub-board case unit will be described with reference to FIGS. The sub-board case unit 207 of the second embodiment has the same configuration as that of the first embodiment except for the sub-board and the front case, and the same reference numerals as those in the first embodiment are assigned to the respective parts. The detailed explanation is omitted. As shown in FIGS. 15 and 16, the sub-board case unit 207 of the second embodiment is provided in the liquid crystal case 90 (liquid crystal unit 9 </ b> C), and is housed in the sub-board case 210 and the sub-board case 210. A sub-board 260 and a shield plate 60 are included.

[Sub-board 260 and shield plate 60]
As shown in FIG. 17, the sub board 260 includes a sub main board 260A and a sub sub board 260B. The sub main board 260A performs an effect determination process such as an effect lottery based on output information (command data) from the main board 100. The sub sub board 260B performs an effect control process for operating the effect device 9 such as the liquid crystal display device 80 based on the output command from the sub main board 260A.

  The sub main board 260A includes electronic components (electronic elements) such as a CPU, a ROM, and a RAM, electrical parts such as a connection connector 263 and a main connector 264, and a sub main print board 261 and a sub ROM print board 271 on which these are mounted. It consists of. A circular first screw insertion hole 261A through which the screw 281 is inserted is formed at the right corner of the sub main printed circuit board 261. A semicircular screw escape portion 261B through which the screw 281 is inserted is formed at the left corner of the sub main printed circuit board 261. A circular first engagement hole 262A and a second screw insertion hole 262B are formed at the center of the sub-main printed circuit board 261.

  The connection connector 263 is provided at the front left center portion of the sub-main printed circuit board 261, and is fitted and connected to the connection connector 268 of the sub-sub circuit board 260B, so that the sub-sub circuit board 260B is electrically connected to the sub-main circuit board 260A. The main connector 264 is provided at the upper right portion of the front side of the sub main printed circuit board 261, and is fitted and connected to a connector (not shown) of a main harness that connects the main board 100 (see FIG. 2) and the sub board 260, The main board 100 is electrically connected to the sub main board 260A. Note that, similarly to the first embodiment, the speaker 9B, the power supply board 160, and the various lamp boards 165 are electrically connected to the sub main board 260A through a connection connector (not shown).

  In addition, a board connector 265 is provided at the center of the front side of the sub main printed board 261. The board connection connector 265 is fitted and connected to a board connection connector (not shown) provided on the back side of the sub ROM print board 271 so that the sub ROM print board 271 is electrically connected to the sub main print board 261. It has become so. The sub ROM printed circuit board 271 is smaller than the sub main printed circuit board 261, and is supported by the third bracket member 275 so as to be separated from the sub main printed circuit board 261 and substantially parallel to the sub ROM printed circuit board 261. The board connector 265 provided in the gap with the third bracket member 275 is covered. A circular second engagement hole 271A is formed in the left and right center of the sub ROM printed circuit board 271. In addition, circular screw insertion holes 271 </ b> B through which screws 282 are inserted are formed in the left and right lower portions of the sub ROM printed circuit board 271.

  The third bracket member 275 is formed in a block shape using a resin material. A connector insertion hole 276 into which the board connection connector 265 is inserted is formed at the center of the third bracket member 275. A first engagement pin 277A that can be engaged with the first engagement hole 262A of the sub-main printed circuit board 261 is formed on the back surface side of the third bracket member 275. On the surface side of the third bracket member 275, a second engagement pin 277B that can be engaged with the second engagement hole 271A of the sub ROM printed circuit board 271 is formed. A circular screw insertion hole 278 into which the screw 282 is inserted is formed in the left and right lower portions of the third bracket member 275.

  With the second engagement pin 277B of the third bracket member 275 engaged with the second engagement hole 271A of the sub ROM printed circuit board 271, the screw 282 is connected to the screw insertion hole 271B of the sub ROM printed circuit board 271 and the third bracket. The sub ROM printed circuit board 271 is attached to the third bracket member 275 by being inserted into the screw insertion hole 278 of the member 275 and fixed with a screw nut (not shown). Further, the first engagement pin 277 A of the third bracket member 275 is engaged with the first engagement hole 262 A of the sub main printed circuit board 261, so that the board connection connector 265 of the sub main printed circuit board 261 and the sub ROM printed circuit board 271 are connected. The sub-ROM printed circuit board 271 is attached to the sub-main printed circuit board 261 via the third bracket member 275 by fitting and connecting a board connection connector (not shown).

  The sub main board 260A includes, as electronic components, a sub main CPU 112, an extended work RAM 113, and a digital amplifier 115 (see FIG. 14) provided on the sub main print board 261, and a program ROM 274 provided on the sub ROM print board 271. And have. The sub-main CPU 112, the extended work RAM 113, and the digital amplifier 115 have the same configuration as in the first embodiment, and detailed description thereof is omitted. The program ROM 274 is attached to a chip socket 272 provided on the surface of the sub ROM printed board 271. The sub ROM printed circuit board 271 and the program ROM 274 form a sub ROM circuit board 270.

  The sub-sub board 260B includes electronic components (electronic elements) such as a CPU, a ROM, and a RAM, electrical parts such as a connection connector 268 and a sub-connector 269, and a sub-sub print board 266 on which these are mounted. A circular screw insertion hole 266A through which the screw 281 is inserted is formed in the left corner of the sub-sub printed circuit board 266. A semicircular screw escape portion 266B through which the screw 281 is inserted is formed at the right corner of the sub-sub printed circuit board 266.

  The connection connector 268 is provided at the right center portion on the surface side of the sub-sub printed circuit board 266, and is fitted and connected to the connection connector 263 of the sub main board 260A. The sub-connector 269 is provided in the left-side center portion of the front side of the sub-sub printed circuit board 266, and is fitted and connected to a connector (not shown) of a sub harness that connects the image display connection board 170 (see FIG. 14) and the sub board 260. Thus, the image display connection board 170 is electrically connected to the sub-sub board 260B. Note that the effect ROM board 150 and the audio board 155 are electrically connected to the sub-sub board 260B through a board connection connector (not shown) as in the first embodiment. Similarly to the first embodiment, the sub sub board 260B includes a sub sub CPU 117, a VRAM 118, a VDP 119, and a program ROM 114B as electronic components (see FIG. 14).

  Further, the effect ROM board 150 and the sound board 155 are mounted substantially in parallel on the surface of the sub sub board 260B, and are electrically connected to the sub sub board 260B. The effect ROM board 150 and the sound board 155 are together with the sub board 260. The sub board case 210 is housed inside. The effect ROM board 150 includes an image ROM 152 and an effect ROM printed board 151 as in the first embodiment. The effect ROM board 150 (effect ROM printed circuit board 151) is supported by the first bracket member 154 so as to be separated from the sub-sub board 260B (sub-sub printed circuit board 266) and substantially parallel to the effect ROM board 150 and the sub-sub circuit board 260B. A board connector (not shown) provided in the gap is covered with the first bracket member 154. The image ROM 152 is attached to a chip socket 153 provided on the surface of the effect ROM printed circuit board 151.

  Similar to the first embodiment, the sound board 155 includes a sound IC 157, a sound ROM 158, and a sound printed board 156. Further, the audio board 155 (audio print board 156) is supported by the second bracket member 160 so as to be separated from the sub-sub board 260B (sub-sub print board 266) and substantially parallel to the gap between the audio board 155 and the sub-sub board 260B. A board connector (not shown) provided on the second bracket member 160 is covered with the board connector. The sound IC 157 is directly attached to the surface of the voice printed circuit board 156 by soldering or the like, and the sound ROM 158 is attached to a chip socket 159 provided on the surface of the voice printed circuit board 156.

  As in the first embodiment, the shield plate 60 of the second embodiment is fixed to the back case 30 by mounting the sub-board 260. Moreover, the conductive transparent film 70 (not shown in FIGS. 15-18) is installed in the shield board 60 of 2nd Embodiment similarly to 1st Embodiment.

  The sub board 260 is fitted into the shield plate 60 in a state where the sub main board 260A and the sub sub board 260B are connected to each other, and is set at an appropriate position of the back case 30 on which the conductive transparent film 70 is disposed. By fixing the front case 220 with screws, the front case 220 is fixed to the inside of the sub-board case 210 integrally with the shield plate 60. An external connector (connector connected to the main connector 264 or the sub connector 269) connected to the sub board 260 serves as a ground wire, and the sub board 260 is discharged.

[Sub-board case 210]
As shown in FIGS. 15 and 16, the sub-board case 210 includes a back case 30 attached to the surface plate 91 of the liquid crystal case 90 and a front case 220 coupled to the front side of the back case 30. By combining 220 and the back case 30, a box shape as shown in FIG. 15 is formed. The back case 30, the connector cover 50, and the sealing covers 40 and 41 shown in FIG. 15 have the same configuration as that of the first embodiment, and detailed description thereof is omitted.

  As shown in FIG. 18, the front case 220 has a rectangular front plate 221 and side plates formed on four sides of the front plate 221, and has a box shape with an open rear side. A notch 222 is formed in the upper right corner of the front case 220, and the connector cover 50 is attached to the notch 222. The notch 222 is for connecting a main harness (not shown) to the main connector 264 of the sub main board 260A. When the front case 220 and the back case 30 are combined, the sub board case An opening is formed in the front upper right corner of 210. Further, as shown in FIG. 15, the front plate 221 of the front case 220 is formed with a plurality of recesses 223, and screw insertion holes 223 </ b> A (see FIG. 18) are formed at the bottoms of the recesses 223. ing. The screw insertion hole 223 </ b> A is provided at a position that matches the screw hole 34 provided in the back case 30 when the front case 220 and the back case 30 are aligned at an appropriate position. Further, a connector opening 224 is formed at the left end of the front case 220. The connector opening 224 is for enabling connection of a sub harness (not shown) to the sub connector 269 of the sub sub board 260B.

  Further, the front cover 221 of the front case 220 is formed with a first cover part 225A that covers the effect ROM board 150, a second cover part 225B that covers the audio board 155, and a third cover part 225C that covers the sub ROM board 270. Has been. The first cover portion 225 </ b> A is formed to protrude forward from the front plate 221, and the inner surface of the first cover portion 225 </ b> A is recessed from the inner surface of the front plate 221 so as to face the effect ROM substrate 150. The second cover portion 225 </ b> B is formed to protrude forward from the front plate 221, and the inner surface of the second cover portion 225 </ b> B is recessed from the inner surface of the front plate 221 so as to face the audio board 155.

  The third cover portion 225C is formed so as to protrude forward from the front plate 221, and the inner surface of the third cover portion 225C is recessed from the inner surface of the front plate 221 so as to cover the program ROM 274 of the sub ROM substrate 270. Yes. Inside the third cover portion 225C, a first surrounding portion 226A that extends from the surface of the sub ROM printed circuit board 271 to the inner surface of the third cover portion 225C and surrounds the program ROM 274 is formed. A second enclosing portion 226B is formed on the peripheral portion of the third cover portion 225C so as to extend from the surface of the sub main printed circuit board 261 to the inner surface of the front plate 221 and surround the sub ROM printed circuit board 271 and the third bracket member 275. The

  The front case 220 and the back case 30 are in a state where the shield plate 60 and the sub board 260 are accommodated, and the screw insertion hole 223A of the front case 220 and the screw hole 34 of the back case 30 (not shown in FIGS. 15 to 18). Are combined with the shield plate 60 and the sub-board 260 by screwing a screw (not shown) together. As described above, also in the sub-board 260, the first screw insertion hole 261A formed in the right corner (lower side) of the sub main printed circuit board 261 and the screw insertion hole 266A formed in the left corner of the sub sub printed circuit board 266. Etc. are provided. Then, after the screw is fixed, the sealing cover 40 is further fitted into the recess 223 of the front case 220, so that it is sealed so that it cannot be opened as in the first embodiment.

  In addition, the connector cover 50 is fixed to the board case 210 using screws (not shown) as in the first embodiment. Further, by inserting the sealing cover 41 into the recess 51 of the connector cover 50, the connector cover 50 is fixed to the board case 210 in a non-removable manner as in the first embodiment. As a result, the main connector 264 of the sub main board 260A is covered with the connector cover 50, and the screws (not shown) fixing the connector cover 50 to the board case 210 (back case 30) become inaccessible.

[Installation and inspection of sub-board case unit 207]
The sub-board case unit 207 of the second embodiment is rotatably attached to the liquid crystal case 90 in the same manner as the first embodiment. Then, as in the first embodiment, the fastener 95 provided on the liquid crystal case 90 is rotated downward to be engaged with an engagement piece 97 (not shown in FIGS. 15 to 18). As shown in FIG. 15, the end portion of the sub-board case unit 207 on the side opposite to the hinge is fixed, the connector opening 224 of the front case 220 is covered, and the sub-connector 269 of the sub-sub board 260B is covered.

  Further, the connector cover 50 is attached to the board case 210 and fixed with screws (not shown), and the sealing cover 41 is inserted into the recess 51 of the connector cover 50, thereby making the main connector 264 of the sub main board 260A inaccessible. The hinge portion of the sub-board case unit 207 is locked so as not to be removed. In order to remove the sub-board case unit 207 from the liquid crystal case 90, the sealing cover 41 must be destroyed and the connector cover 50 must be removed, or the hinge portion must be destroyed. Remains.

  When inspecting the back surface of the sub-board case unit 207, as in the first embodiment, the locking piece 97 is pushed down to release the locking with the fastener 95, and the fastener 95 is rotated upward. Then, similarly to the first embodiment, the sub substrate case unit 207 is rotated in a direction away from the surface plate 91 of the liquid crystal case 90. Thereby, from the back surface of the back case 30, the back surface of the sub main board 260 </ b> A can be visually recognized, and when an unauthorized part or the like is attached, it can be confirmed at a glance.

[Effects of Second Embodiment]
As described above, according to the present embodiment, the sub-board case unit 207 is attached to the liquid crystal case 90 that is a fixed base via a hinge. Can be visually recognized, and it is easy to find attachment of an unauthorized board or an unauthorized part to the back side of the sub-board 260. Then, the attenuation of the shielding effect due to the provision of the opening 61 in the metal shield plate 60 in order to make the back side of the sub-board 260 visible can be eliminated by using the conductive transparent film 70.

  Further, since the back case 30 of the sub-board case 210 has the same configuration as that of the first embodiment, the hinge portion can be prevented from being damaged due to the weight of the sub-board case unit 207 and the sub-board case can be prevented. The unit 207 and the liquid crystal case 90 can be firmly fixed. Further, the end of the sub-board case 210 on the side opposite to the hinge is locked by a fastener 95, which can protect the sub-connector 269 of the sub-sub-board 260B. Further, since the connector cover 50 has the same configuration as that of the first embodiment, as in the first embodiment, in addition to unauthorized insertion / removal of the main connector 264 of the sub main board 260A, the sub board case is made of a single component. Unauthorized removal of the unit 207 can also be prevented.

  Further, the inner surface of the front case 220 is formed so as to be recessed in a portion (third cover portion 225C) facing the sub ROM printed circuit board 271 so as to cover the program ROM 274. Therefore, even if an inappropriate deformation force is applied to the sub-board case 210 and a gap is formed between the front case 220 and the back case 30, the program ROM 274 is covered by the third cover portion 225C. Unauthorized access to the program ROM 274 from the gap in the back case 30 can be prevented. Further, by providing the first enclosure 226A surrounding the program ROM 274 on the inner surface of the front case 220, it is possible to more reliably prevent unauthorized access to the program ROM 274 through the gap between the front case 220 and the back case 30. it can. Further, the third bracket member 275 is formed so as to surround the gap between the sub ROM printed circuit board 271 and the sub main printed circuit board 261, so that the back surface of the sub ROM printed circuit board 271 is formed from the gap between the front case 220 and the back case 30. Side can be prevented from being illegally accessed.

[Modification of sub-board case unit]
In the second embodiment described above, the sub main CPU 112, the extended work RAM 113, and the digital amplifier 115 are provided on the sub main printed circuit board 261. However, the present invention is not limited to this, and the sub main CPU 112, the extended work RAM 113, At least one of the digital amplifier 115 and the digital amplifier 115 may be provided on the sub ROM printed circuit board 271. By providing electronic elements such as the sub-main CPU 112, the extended work RAM 113, and the digital amplifier 115 that are relatively likely to be replaced (fragile) in the sub-board 260, the sub-ROM printed circuit board 271 is provided. When the element needs to be replaced, only the ROM printed circuit board 271 provided with the electronic element to be replaced needs to be replaced, and it is not necessary to replace the entire sub-board 260, thereby reducing the replacement cost of each control board. It is possible.

  In the second embodiment described above, the effect ROM substrate 150 may be arranged such that the image ROM 152 is accommodated inside the first cover portion 225A. Thereby, the inner surface of the front case 220 is formed so as to be recessed and cover the image ROM 152 in the portion (first cover portion 225A) facing the effect ROM board 150 (effect ROM printed circuit board 151). Therefore, even if an inappropriate deformation force is applied to the sub-board case 210 and a gap is formed between the front case 220 and the back case 30, the image ROM 152 is covered with the first cover portion 225A. Unauthorized access to the image ROM 152 from the gap of the back case 30 can be prevented. At this time, the first bracket member 154 is formed so as to surround the gap between the effect ROM board 150 (effect ROM printed board 151) and the sub sub board 260B (sub sub print board 266), so It is possible to prevent unauthorized access to the back side of the effect ROM substrate 150 from the gap of the case 30.

  In this case, as in the second embodiment, the first enclosure 225A extends from the surface of the effect ROM printed board 151 to the inner surface of the first cover 225A and surrounds the image ROM 152. (Not shown) may be formed. Further, a second enclosing portion (not shown) is connected to the peripheral portion of the first cover portion 225A so as to extend from the surface of the sub-sub printed circuit board 266 to the inner surface of the front plate 221 and surround the effect ROM printed circuit board 151 and the first bracket member 154. ) May be formed. Thereby, unauthorized access to the image ROM 152 from the gap between the front case 220 and the back case 30 can be prevented more reliably.

  In the second embodiment described above, the sound board 155 may be arranged such that the sound IC 157 and the sound ROM 158 are accommodated inside the second cover portion 225B. As a result, the inner surface of the front case 220 is formed to be recessed in a portion (second cover portion 225B) facing the sound board 155 (voice print board 156) so as to cover the sound IC 157 and the sound ROM 158. Therefore, even if an inappropriate deformation force is applied to the sub-board case 210 and a gap is formed between the front case 220 and the back case 30, the sound IC 157 and the sound ROM 158 are covered by the second cover portion 225B. Unauthorized access to the sound IC 157 and the sound ROM 158 from the gap between the case 220 and the back case 30 can be prevented. At this time, the second bracket member 160 is formed so as to surround the gap between the audio board 155 (audio print board 156) and the sub-sub board 260B (sub-sub print board 266), so that the front case 220 and the back case 30 are formed. It is possible to prevent unauthorized access to the back side of the audio board 155 from the gap. In addition, since the sound IC 157 is provided along with the sound ROM 158 on the sound board 155 (the sound printed circuit board 156), if it is necessary to replace the sound IC 157 according to the (sound) specifications of the slot machine 1, it is necessary to replace the sound IC 157. Since only the substrate 155 needs to be replaced and it is not necessary to replace the entire sub-substrate 260, it is possible to reduce the replacement cost of each control substrate.

  In this case, as in the second embodiment described above, a first enclosing portion that surrounds the sound ROM 158 is connected to the inside of the second cover portion 225B from the surface of the sound printed circuit board 156 to the inner surface of the second cover portion 225B. (Not shown) may be formed. Further, a second enclosing portion (not shown) is connected to the peripheral portion of the second cover portion 225B so as to extend from the surface of the sub-sub printed circuit board 266 to the inner surface of the front plate 221 and surround the audio printed circuit board 156 and the second bracket member 160. May be formed. As a result, unauthorized access to the sound ROM 158 from the gap between the front case 220 and the back case 30 can be more reliably prevented.

  In the second embodiment described above, the program ROM 114B of the sub sub board 260B is separated from the surface of the sub sub print board 266 substantially in parallel with the bracket member (not shown), like the program ROM 274 of the sub main board 260A. It may be provided on a supported sub ROM printed circuit board (not shown) and covered with a cover portion (not shown) formed to protrude forward on the front plate 221 of the front case 220. Further, in this case, similarly to the program ROM 274 of the sub main board 260A, a first enclosure (not shown) and a second enclosure (not shown) may be formed. Thereby, the same effect as that of the program ROM 274 of the sub main board 260A can be obtained.

  In the second embodiment described above, the first to third cover portions 225A to 225C of the front case 220 are formed to protrude forward from the front plate 221, but the present invention is not limited to this, and the first to first covers The outer surface of the front plate including the third cover portion is planar, and the inner surfaces of the first to third cover portions are recessed from the inner surface of the front plate (that is, the program ROM 274 has a thickness of the front plate at least in the third cover portion. May be formed so as to be thin enough to accommodate.

  In the second embodiment described above, the notch 222 is provided in a part of the front case 220 to form the connector connection opening in the sub-board case 210. However, the connector connection opening is Similar to the first embodiment, it may be located in the vicinity of the hinge portion. Further, the lock piece 52 of the connector cover 50 can be appropriately changed according to the shape of the hinge portion, as in the first embodiment. That is, by attaching the connector cover 50 to the sub-board case 210, a part of the connector cover 50 can be brought into contact with a part of the hinge portion, and the sub-board can be prevented from obstructing the rotation of the sub-board case unit 207. The case unit 207 may be formed so as to be able to prevent the movement of the case unit 207 in the hinge engagement release direction.

  Further, in the above-described second embodiment, the anti-hinge side of the sub-board case unit 207 is fixed by the fastener 95 provided in the liquid crystal case 90. However, the back case 30 is the same as in the first embodiment. The fixing part 35 may be provided on the side surface of the liquid crystal case 90, and the fixing part 98 may be provided on the surface plate 91 of the liquid crystal case 90, and both the fixing parts 35 and 98 may be fixed by the caulking pin 45 (see FIG. 13). Further, similarly to the first embodiment, a cooling fan 25 may be provided in the sub-board case 210 (see FIG. 13).

[Third embodiment of sub-board case unit]
Next, a third embodiment of the sub-board case unit will be described with reference to FIGS. The sub-board case unit 307 of the third embodiment has the same configuration as that of the first embodiment except for the sub-board and the front case, and the same reference numerals as those in the case of the first embodiment are attached to the respective parts. The detailed explanation is omitted. As shown in FIGS. 19 and 20, the sub substrate case unit 307 of the third embodiment is provided in the liquid crystal case 90 (the liquid crystal unit 9 </ b> C), and is accommodated in the sub substrate case 310 and the sub substrate case 310. A sub-board 360 and a shield plate 60 are included.

[Sub-board 360 and shield plate 60]
As shown in FIG. 21, the sub board 360 includes a sub main board 360A and a sub sub board 360B. The sub main board 360A performs an effect determination process such as an effect lottery based on output information (command data) from the main board 100. The sub sub board 360B performs effect control processing for operating the effect device 9 such as the liquid crystal display device 80 based on the output command from the sub main board 360A.

  The sub main board 360A includes electronic components (electronic elements) such as a CPU, a ROM, and a RAM, electrical parts such as a connection connector 363 and a main connector 364, and a sub main print board 361 and a sub ROM print board 371 on which these are mounted. It consists of. A circular screw insertion hole 361A through which the screw 381 is inserted is formed in the right corner of the sub main printed circuit board 361. A semicircular screw escape portion 361B through which the screw 381 is inserted is formed at the left corner of the sub main printed circuit board 361.

  The connection connector 363 is provided at the front left center portion of the sub-main printed circuit board 361, is fitted and connected to the connection connector 368 of the sub-sub circuit board 360B, and the sub-sub circuit board 360B is electrically connected to the sub-main circuit board 360A. The main connector 364 is provided at the upper right portion on the surface side of the sub-main printed circuit board 361 and is fitted and connected to a connector (not shown) of a main harness that connects the main board 100 (see FIG. 2) and the sub-board 360, The main board 100 is electrically connected to the sub main board 360A. Note that, similarly to the first embodiment, the speaker 9B, the power supply board 160, and the various lamp boards 165 are electrically connected to the sub main board 360A through a connection connector (not shown).

  In addition, a support connector 365 is provided in the center portion on the surface side of the sub main printed circuit board 361. The support connector 365 is contact-fitted with a contact terminal 371A provided at an end of the sub ROM printed circuit board 371 so that the sub ROM printed circuit board 371 is electrically connected to the sub main printed circuit board 361. . The sub ROM printed circuit board 371 is smaller than the sub main printed circuit board 361 and is supported by the support connector 365 so as to extend substantially perpendicular to the sub main printed circuit board 361.

  The sub main board 260A includes, as electronic components, a sub main CPU 112, an extended work RAM 113, and a digital amplifier 115 (see FIG. 14) provided on the sub main print board 261, and a program ROM 374 provided on the sub ROM print board 371. And have. The sub-main CPU 112, the extended work RAM 113, and the digital amplifier 115 have the same configuration as in the first embodiment, and detailed description thereof is omitted. The program ROM 374 is attached to a chip socket 372 provided on the surface of the sub ROM printed circuit board 371. The sub ROM printed circuit board 371 and the program ROM 374 form a sub ROM circuit board 370.

  The sub sub board 360B includes electronic components (electronic elements) such as a CPU, a ROM, and a RAM, electrical parts such as a connection connector 368 and a sub connector 369, and a sub sub print board 366 on which these are mounted. A circular screw insertion hole 366A through which the screw 381 is inserted is formed in the left corner of the sub-sub printed circuit board 366. A semicircular screw escape portion 366B through which the screw 381 is inserted is formed at the right corner of the sub-sub printed circuit board 366.

  The connection connector 368 is provided at the right center portion on the surface side of the sub-sub printed circuit board 366, and is fitted and connected to the connection connector 363 of the sub main board 360A. The sub-connector 369 is provided at the left-side center portion of the sub-sub printed circuit board 366 and is fitted and connected to a sub-harness connector (not shown) that connects the image display connection board 170 (see FIG. 14) and the sub-board 360. Thus, the image display connection board 170 is electrically connected to the sub-sub board 360B. Note that the effect ROM board 150 and the sound board 155 are electrically connected to the sub-sub board 360B via a board connector (not shown), as in the first embodiment. Similarly to the first embodiment, the sub sub board 360B includes a sub sub CPU 117, a VRAM 118, a VDP 119, and a program ROM 114B as electronic components (see FIG. 14).

  Further, the effect ROM board 150 and the audio board 155 are mounted substantially in parallel on the surface of the sub sub board 360B, and are electrically connected to the sub sub board 360B. The effect ROM board 150 and the audio board 155 are together with the sub board 360. The sub board case 310 is housed inside. The effect ROM board 150 includes an image ROM 152 and an effect ROM printed board 151 as in the first embodiment. Further, the effect ROM board 150 (effect ROM printed board 151) is supported by the first bracket member 154 so as to be separated from the sub sub board 360B (sub sub print board 366) and substantially parallel to the effect ROM board 150 and the sub sub board 360B. A board connector (not shown) provided in the gap is covered with the first bracket member 154. The image ROM 152 is attached to a chip socket 153 provided on the surface of the effect ROM printed circuit board 151.

  Similar to the first embodiment, the sound board 155 includes a sound IC 157, a sound ROM 158, and a sound printed board 156. Further, the audio board 155 (audio print board 156) is supported by the second bracket member 160 so as to be separated from the sub sub board 360B (sub sub print board 366) substantially in parallel, and a gap portion between the audio board 155 and the sub sub board 360B. A board connector (not shown) provided on the second bracket member 160 is covered with the board connector. The sound IC 157 is directly attached to the surface of the voice printed circuit board 156 by soldering or the like, and the sound ROM 158 is attached to a chip socket 159 provided on the surface of the voice printed circuit board 156.

  As in the first embodiment, the shield plate 60 of the third embodiment is attached to the sub case 360 and fixed to the back case 30. Moreover, the conductive transparent film 70 (not shown in FIGS. 19-21) is installed in the shield board 60 of 3rd Embodiment similarly to 1st Embodiment.

  The sub board 360 is fitted into the shield plate 60 in a state where the sub main board 360A and the sub sub board 360B are connected, and is set at an appropriate position of the back case 30 on which the conductive transparent film 70 is disposed. By fixing the front case 320 with screws, the shield case 60 and the sub-board case 310 are fixed together. Then, external connectors connected to the sub board 360 (connectors connected to the main connector 364 and the sub connector 369) serve as a ground wire, and the sub board 360 is discharged.

[Sub-board case 310]
As shown in FIGS. 19 and 20, the sub-board case 310 includes a back case 30 attached to the surface plate 91 of the liquid crystal case 90 and a front case 320 coupled to the front side of the back case 30. By combining 320 and the back case 30, a box shape as shown in FIG. 18 is formed. The back case 30, the connector cover 50, and the sealing covers 40 and 41 shown in FIG. 19 have the same configuration as that of the first embodiment, and detailed description thereof is omitted.

  The front case 320 has a rectangular front plate 321 and side plates formed on four sides of the front plate 321 and has a box shape with an open rear side. A notch 322 is formed in the upper right corner of the front case 320, and the connector cover 50 is attached to the notch 322. The notch 322 is for allowing a main harness (not shown) to be connected to the main connector 364 of the sub main board 360A. When the front case 320 and the back case 30 are combined, the sub board case An opening is formed at the upper right corner of the front surface of 310. Further, the front plate 321 of the front case 320 is formed with a plurality of recesses 323, and screw insertion holes (not shown) are formed at the bottoms of the recesses 323. A screw insertion hole (not shown) is provided at a position that matches the screw hole 34 provided in the back case 30 when the front case 320 and the back case 30 are aligned at an appropriate position. Further, a connector opening 324 is formed at the left end portion of the front case 320. The connector opening 324 is for enabling connection of a sub harness (not shown) to the sub connector 369 of the sub sub board 360B.

  Further, the front cover 321 of the front case 320 is formed with a first cover part 325A that covers the effect ROM board 150, a second cover part 325B that covers the audio board 155, and a third cover part 325C that covers the sub ROM board 370. Has been. The first cover portion 325 </ b> A is formed to protrude forward from the front plate 321, and the inner surface of the first cover portion 325 </ b> A is recessed from the inner surface of the front plate 321 so as to face the effect ROM substrate 150. The second cover portion 325 </ b> B is formed to protrude forward from the front plate 321, and the inner surface of the second cover portion 325 </ b> B is recessed from the inner surface of the front plate 321 so as to face the audio board 155.

  The third cover portion 325C is formed so as to protrude forward from the front plate 321, and the inner surface of the third cover portion 325C is recessed from the inner surface of the front plate 321 to cover the sub ROM substrate 370 (sub ROM printed substrate 271). It is like that. An encircling portion 326 that extends from the surface of the sub-main printed circuit board 361 to the inner surface of the front plate 321 and surrounds the sub-ROM printed circuit board 271 is formed on the periphery of the third cover portion 325C. Inside the third cover portion 325C, a substrate support portion 327 that supports an end portion of the sub main printed circuit board 361 opposite to the contact terminal 371A is formed.

  The front case 320 and the back case 30 are a state where the shield plate 60 and the sub board 360 are accommodated, and a screw insertion hole (not shown) of the front case 320 and a screw hole 34 of the back case 30 (in FIGS. 19 to 21). (Not shown) and screws (not shown) are screwed and fixed to be integrally coupled to the shield plate 60 and the sub-board 360. As described above, the sub board 360 also includes a screw insertion hole 361A formed in the right corner (lower side) of the sub main printed board 361, a screw insertion hole 366A formed in the left corner of the sub sub printed board 366, and the like. Is provided. Then, after the screw is fixed, the sealing cover 40 is further fitted into the concave portion 323 of the front case 320, so that the unsealed sealing is performed as in the first embodiment.

  In addition, the connector cover 50 is fixed to the board case 310 using screws (not shown) as in the first embodiment. Further, by inserting the sealing cover 41 into the recess 51 of the connector cover 50, the connector cover 50 is fixed to the board case 310 in a non-removable manner as in the first embodiment. As a result, the main connector 364 of the sub main board 360A is covered with the connector cover 50, and the screws (not shown) fixing the connector cover 50 to the board case 310 (back case 30) become inaccessible.

[Installation and inspection of sub-board case unit 307]
The sub substrate case unit 307 of the third embodiment is rotatably attached to the liquid crystal case 90 in the same manner as in the first embodiment. Then, as in the first embodiment, the fastener 95 provided on the liquid crystal case 90 is pivoted downward and locked to a locking piece 97 (not shown in FIGS. 19 to 21). 19, the end of the sub-board case unit 307 on the side opposite to the hinge is fixed, the connector opening 324 of the front case 320 is covered, and the sub-connector 369 of the sub-sub board 360B is covered.

  Further, the connector cover 50 is attached to the board case 310 and fixed with screws (not shown), and the sealing cover 41 is inserted into the recess 51 of the connector cover 50, thereby making the main connector 364 of the sub main board 360A inaccessible. The hinge portion of the sub-board case unit 307 is locked so as not to be removed. In order to remove the sub-board case unit 307 from the liquid crystal case 90, the sealing cover 41 must be destroyed and the connector cover 50 must be removed, or the hinge part must be destroyed. Remains.

  When inspecting the back surface of the sub-board case unit 307, as in the first embodiment, the locking piece 97 is pushed down to release the locking with the fastener 95, and the fastener 95 is rotated upward. Then, similarly to the first embodiment, the sub substrate case unit 307 is rotated in a direction away from the surface plate 91 of the liquid crystal case 90. Thereby, from the back surface of the back case 30, the back surface of the sub main board 360 </ b> A can be visually recognized, and when an illegal part or the like is attached, it can be confirmed at a glance.

[Effect of the third embodiment]
As described above, according to the present embodiment, the sub substrate case unit 307 is attached to the liquid crystal case 90 that is a fixed base via a hinge. Can be visually recognized, and it is easy to find the attachment of an unauthorized board or an unauthorized part to the back side of the sub-board 360. The attenuation of the shielding effect due to the provision of the opening 61 in the metal shield plate 60 so that the back side of the sub-board 360 can be visually recognized can be eliminated by using the conductive transparent film 70.

  Further, since the back case 30 of the sub-board case 310 has the same configuration as that of the first embodiment, similarly to the first embodiment, the hinge portion can be prevented from being damaged due to the weight of the sub-board case unit 307 and the sub-board case can be prevented. The unit 307 and the liquid crystal case 90 can be firmly fixed. Further, the end of the sub-board case 310 on the side opposite to the hinge is locked by a fastener 95, which can protect the sub-connector 369 of the sub-sub-board 360B. Further, since the connector cover 50 has the same configuration as that of the first embodiment, in the same manner as in the first embodiment, in addition to unauthorized insertion / removal of the main connector 364 of the sub main board 360A, a sub board case is formed with a single component. Unauthorized removal of the unit 307 can also be prevented.

  Further, the inner surface of the front case 320 is formed so as to be recessed in a portion (third cover portion 325C) facing the sub ROM printed circuit board 371 so as to cover the sub ROM printed circuit board 371. Therefore, even if an inappropriate deformation force is applied to the sub-board case 310 and a gap is formed between the front case 320 and the back case 30, the program ROM 374 is covered by the third cover portion 325C. Unauthorized access to the program ROM 374 from the gap in the back case 30 can be prevented. Further, since the sub ROM printed circuit board 371 is provided so as to extend substantially at right angles to the surface of the sub main printed circuit board 361, it is possible to easily visually recognize the back surface side in addition to the front surface side of the sub ROM printed circuit board 371. Traces of fraudulent activity on the back side of the sub ROM printed circuit board 371 can be easily found. Further, by providing an enclosure 326 that surrounds the sub ROM printed circuit board 371 on the inner surface of the front case 320, it is possible to more reliably prevent unauthorized access to the program ROM 374 through the gap between the front case 320 and the back case 30. Can do. In addition, a support connector 365 for supporting and supporting the sub ROM printed circuit board 371 by being in contact with the contact terminal 371A of the sub ROM printed circuit board 371 is provided on the surface of the sub main printed circuit board 361, so that the third embodiment in the second embodiment. Without using a support member such as the bracket member 275, the sub ROM printed circuit board 371 can be electrically connected to and supported by the sub main printed circuit board 361 with a small number of parts.

[Modification of sub-board case unit]
In the third embodiment described above, the sub main CPU 112, the extended work RAM 113, and the digital amplifier 115 are provided on the sub main printed circuit board 361. However, the present invention is not limited to this, and the sub main CPU 112, the extended work RAM 113, At least one of the digital amplifier 115 and the digital amplifier 115 may be provided on the sub ROM printed circuit board 371. By providing electronic elements such as the sub main CPU 112, the extended work RAM 113, and the digital amplifier 115 that are relatively likely to be replaced (fragile) in the sub board 360 in the sub ROM printed circuit board 371, such electronic When the element needs to be replaced, only the ROM printed circuit board 371 provided with the electronic element to be replaced needs to be replaced, and it is not necessary to replace the entire sub-board 360, thereby reducing the replacement cost of each control board. It is possible.

  Further, in the third embodiment described above, the effect ROM board 150 is provided such that the effect ROM printed board 151 extends substantially at right angles to the surface of the sub-sub print board 366 and is accommodated inside the first cover portion 325A. May be arranged. Thereby, the inner surface of the front case 320 is formed so as to be recessed in a portion (first cover portion 325A) facing the effect ROM board 150 (effect ROM print board 151) to cover the effect ROM print board 151. Therefore, even if an inappropriate deformation force is applied to the sub-board case 310 and a gap is formed between the front case 320 and the back case 30, the image ROM 152 is covered by the first cover portion 325A. Unauthorized access to the image ROM 152 from the gap of the back case 30 can be prevented. In addition, since the production ROM printed circuit board 151 is provided so as to extend substantially at right angles to the surface of the sub-sub printed circuit board 366, it is possible to easily visually recognize the back side in addition to the front surface side of the production ROM printed circuit board 151. Traces of fraud on the back side of the ROM printed circuit board 151 can be easily found.

  In this case, as in the third embodiment described above, the surrounding portion of the first cover portion 325A extends from the surface of the sub-sub printed circuit board 366 to the inner surface of the front plate 321 and surrounds the effect ROM printed circuit board 151. (Not shown) may be formed. Thereby, unauthorized access to the image ROM 152 from the gap between the front case 320 and the back case 30 can be prevented more reliably. Also, in this case, a contact terminal (not shown) is provided at the end of the effect ROM printed circuit board 151, and the effect ROM printed circuit board 151 is brought into contact with the contact terminal of the effect ROM printed circuit board 151 on the surface of the sub-sub printed circuit board 366. A support connector (not shown) may be provided to support the. Thereby, the effect ROM printed circuit board 151 can be electrically connected to and supported by the sub-sub printed circuit board 366 with a small number of parts.

  Further, in the third embodiment described above, the audio board 155 is disposed so that the audio print board 156 extends substantially perpendicular to the surface of the sub-sub print board 366 and is accommodated inside the second cover portion 325B. May be. As a result, the inner surface of the front case 320 is formed so as to be recessed in the portion (second cover portion 325B) facing the audio board 155 (audio print board 156) to cover the audio print board 156. Therefore, even if an improper deformation force is applied to the sub-board case 310 and a gap is formed between the front case 320 and the back case 30, the sound IC 157 and the sound ROM 158 are covered by the second cover portion 325B. Unauthorized access to the sound IC 157 and the sound ROM 158 from the gap between the case 320 and the back case 30 can be prevented. In addition, since the audio printed circuit board 156 is provided so as to extend substantially perpendicular to the surface of the sub-sub printed circuit board 366, the back surface side in addition to the front surface side of the audio printed circuit board 156 can be easily visually recognized. Traces of fraud on the back side of 156 can be easily found. In addition, since the sound IC 157 is provided along with the sound ROM 158 on the sound board 155 (the sound printed circuit board 156), if it is necessary to replace the sound IC 157 according to the (sound) specifications of the slot machine 1, it is necessary to replace the sound IC 157. Since only the substrate 155 needs to be replaced and it is not necessary to replace the entire sub-substrate 360, it is possible to reduce the replacement cost of each control substrate.

  In this case, as in the third embodiment described above, an enclosure (see FIG. 5) is connected to the peripheral portion of the second cover portion 325B extending from the surface of the sub-sub printed circuit board 366 to the inner surface of the front plate 321 and surrounding the audio printed circuit board 156. (Not shown) may be formed. As a result, unauthorized access to the sound IC 157 and the sound ROM 158 from the gap between the front case 320 and the back case 30 can be more reliably prevented. Further, in this case, a contact terminal (not shown) is provided at the end of the voice printed circuit board 156, and the voice printed circuit board 156 is supported by being fitted in contact with the contact terminal of the voice printed circuit board 156 on the surface of the sub-sub printed circuit board 366. A support connector (not shown) may be provided. As a result, the audio printed circuit board 156 can be electrically connected to and supported by the sub-sub printed circuit board 366 with a small number of components.

  In the third embodiment described above, the program ROM 114B of the sub sub board 360B is connected to a support connector (not shown) so as to extend substantially perpendicular to the surface of the sub sub print board 366, like the program ROM 374 of the sub main board 360A. It may be provided on a supported sub ROM printed circuit board (not shown) and covered with a cover portion (not shown) formed to protrude forward from the front plate 321 of the front case 320. In this case, an enclosure (not shown) may be formed in the same manner as the program ROM 374 of the sub main board 360A. Thereby, the same effect as the case of the program ROM 374 of the sub main board 360A can be obtained.

  Further, in the above-described third embodiment, the first to third cover portions 325A to 325C of the front case 320 are formed to protrude forward on the front plate 321, but are not limited thereto, The outer surface of the front plate including the third cover portion is planar, and the inner surfaces of the first to third cover portions are recessed from the inner surface of the front plate (that is, the thickness of the front plate is at least the sub ROM in the third cover portion. The printed circuit board 371 may be formed thin enough to accommodate the printed circuit board 371.

  In the third embodiment described above, the notch 322 is provided in a part of the front case 320 to form the connector connection opening in the sub-board case 310. However, the connector connection opening is Similar to the first embodiment, it may be located in the vicinity of the hinge portion. Further, the lock piece 52 of the connector cover 50 can be appropriately changed according to the shape of the hinge portion, as in the first embodiment. That is, by attaching the connector cover 50 to the sub-board case 310, a part of the connector cover 50 can be brought into contact with a part of the hinge portion, and the sub-board can be prevented without obstructing the rotation of the sub-board case unit 307. The case unit 307 may be formed so as to be able to prevent the movement of the case unit 307 in the hinge engagement release direction.

  Further, in the third embodiment described above, the anti-hinge side of the sub-board case unit 307 is fixed by the fastener 95 provided in the liquid crystal case 90. However, as in the first embodiment, the back case 30 is fixed. The fixing part 35 may be provided on the side surface of the liquid crystal case 90, and the fixing part 98 may be provided on the surface plate 91 of the liquid crystal case 90, and both the fixing parts 35 and 98 may be fixed by the caulking pin 45 (see FIG. 13). Further, similarly to the first embodiment, the sub-board case 310 may be provided with a cooling fan 25 (see FIG. 13).

  In each of the above-described embodiments, the case where the sub-board case unit is installed on the back surface of the liquid crystal unit 9C has been described. However, the present invention is not limited to this. For example, as the board case unit, the main board 100 is used as the main board. It is also possible to apply to the main board case unit 7A configured to be accommodated in the case. Further, the fixed base for fixing the substrate case unit is not limited to the liquid crystal unit 9 </ b> C, and may be the back surface portion of the front door 3 or the back plate of the housing 2. The substrate case unit only needs to be rotatably attached to the fixed base, and the turning direction is not limited to the horizontal direction, but may be turnable in the vertical direction.

  In each of the above-described embodiments, the slot machine 1 has been described as an example of a gaming machine to which the present invention is applied. However, the present invention is not limited to this. For example, a sparrow ball gaming machine or an arrangement The same effect can be obtained by applying the same to a ball machine, a pachinko machine, and the like.

DESCRIPTION OF SYMBOLS 1 Slot machine 2 Case 3 Front door 4 Medal selector 5 Operation part 6 Reel unit 7 Substrate case unit 7B Sub board case unit 8 Hopper unit 9 Staging device 10 Sub board case 20 Front case (2nd case member) 21 Front plate 22 Notch portion 23 Recess portion 24 Connector opening 25 Fan 30 Back case (first case member) 31 Back plate 32 Hinge shaft (hinge portion) 33 Locking projection 34 Screw hole 35 Fixing portion 40 Sealing cover 41 Sealing cover 50 Connector cover 51 Recessed portion 52 Lock piece 60 Shield plate 61 Opening portion 70 Conductive transparent film 80 Liquid crystal display device 90 Liquid crystal case (fixed base) 91 Surface plate 92 Fixed portion 93 Bearing portion (hinge portion)
94 Locking recess 95 Fastener 100 Main board 110 Sub board 207 Sub board case unit (second embodiment)
310 Sub board case 220 Front case 225A to 225C First to third cover part 226A First enclosure 226B Second enclosure 260 Sub board 261 Sub main printed board 271 Sub ROM printed board 274 Program ROM 275 Third bracket member 307 Sub Substrate case unit (third embodiment)
310 Sub board case 320 Front case 325A-325C First to third cover part 326 Enclosure 360 Sub board 365 Support connector 361 Sub main printed board 371 Sub ROM printed board 374 Program ROM

Claims (4)

A first case member and a second case member coupled to the first case member, wherein the control board is accommodated in a case formed by coupling the first case member and the second case member. A board case unit configured as follows:
The control board is provided on the surface of the first printed circuit board and spaced apart from the first printed circuit board, the first printed circuit board attached to the first case member or the second case member, and the first printed circuit board. A second printed circuit board smaller than the first printed circuit board electrically connected to the substrate, and a storage element provided on the surface of the second printed circuit board,
Of the first case member and the second case member, an inner surface of the case member facing the memory element is formed so as to be recessed in a portion facing the memory element so as to cover the memory element. Board case unit.   2. The opposing case member has an enclosure portion that extends from and is connected to the inner surface of the opposing case member from the surface of the second printed circuit board inside the case and surrounds the memory element. Board case unit.   3. The substrate case unit according to claim 1, wherein among the electronic elements constituting the control board, an electronic element that is relatively likely to be replaced is provided on the second printed board. 4. A bracket member provided on the surface of the first printed circuit board to support the second printed circuit board away from the first printed circuit board;
4. The board case unit according to claim 1, wherein the bracket member is formed so as to surround a gap between the first printed board and the second printed board. 5.

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