JP2006158849A - Control board assembly for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a control board assembly for the game machines which achieves sorts of more exact prevention of the dishonest access to the control circuit board committed, for example, by penetrating a wire or the like between the connector and the board case. <P>SOLUTION: An opening part (310) through which the harness side connector (410) is inserted is formed in an upper lid case (300) for housing the main control board (100) and moreover, a cylindrical partition wall part (311) is formed surrounding the periphery of the opening part. With the main control board housed, the tip of the partition wall part is kept in contact with a base member (111) of the board side connector (110) to tightly close the electronic component mounted area within the board case. This achieves the exact prevention of the dishonest act committed, for example, by penetrating the wire or the like through the opening part for the connectors. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a control board assembly for a gaming machine that is provided in a casing of a gaming machine such as a slot machine and accommodates a control board for controlling the operation of the gaming machine, and in particular, measures for preventing illegal acts have been taken. The present invention relates to a control board assembly.

  Conventionally, in gaming machines such as slot machines and pachinko machines, there is a control method for controlling and managing the gaming state of the gaming machine by using a control circuit board that is mounted with electronic parts such as MPU, ROM, and RAM and is formed based on a microcomputer. It has been adopted.

  For example, in the case of a slot machine, a control circuit board called a main control board is provided in the housing, and when the player's start / stop operation is monitored to control the reel rotation operation or when a winning combination is established The main operation of the gaming machine is controlled so as to pay out a predetermined number of medals. In addition, the main control board changes the winning probability for each game in accordance with a lottery of winning combinations, a jackpot (bonus), or assists the player to give an opportunity to win more medals. It also controls the operation control.

  By the way, in gaming machines having gambling characteristics such as slot machines and pachinko machines, there has been a problem of fraudulent acts called “goto acts”. In particular, since the main control board plays a central role in the gaming machine as described above, the read-only memory (ROM) in which the control program is stored is replaced with another ROM that has been illegally modified, a wire, etc. It was the target most targeted for fraudulent acts such as shorting the control circuit and causing malfunctions.

  Therefore, in order to protect the control circuit from such illegal acts, the main control board of the gaming machine is installed in the housing as an assembly (control board assembly) accommodated in a board case formed of, for example, a transparent resin material. ing. In general, a board case of a control board assembly is composed of a pair of opposing main body case and upper cover case. Even if one of the cases is opened, both cases are joined in a crimped state so that a trace remains. Stop structures are provided at a plurality of locations (see, for example, Patent Document 1).

  In addition, in order to electrically connect the control circuit board to another control circuit board or the electronic device unit via the harness, an opening for inserting the harness side connector into the board side connector is formed in the board case. Is done. In this case, in order to eliminate the gap between the connector and the opening, in reality, it is necessary to take a clearance in consideration of various manufacturing errors, so that a wire or the like enters from the gap, There has been a risk of unauthorized access such as malfunctioning of a control circuit formed on the substrate.

  In order to deal with such unauthorized access, a countermeasure has been proposed in which a wiring member in the connector mounting area is covered and a partition member that partitions the connector mounting area and the electronic component mounting area inside the board case is provided (for example, , See Patent Document 2).

JP 2004-209238 A JP 2003-265815 A

  However, in the conventional board case disclosed in Patent Document 2 or the like, for example, a tool or the like is inserted between the case and the connector, and the case is bent and pry open, so that the space between the partition member and the back of the case can be reduced. In some cases, an illegal access is made without leaving a trace on the internal control circuit board. For this reason, this fraudulent act could not be surely prevented.

  The present invention has been made in view of such a conventional problem. In a control board assembly for a gaming machine in which a control circuit board is accommodated in a board case with a connector (board side connector) exposed to the outside, a connector is provided. An object of the present invention is to provide a control board assembly that more reliably prevents unauthorized access to the control circuit board, such as a wire entering from between the circuit board and the board case.

  In order to solve the above-described problem, the invention described in claim 1 is that a required electronic component and a board-side connector are mounted on a control circuit board having a wiring surface on which a wiring pattern is formed. A control board assembly for a gaming machine that accommodates the control circuit board in a board case in a state exposed to the board, wherein a harness side connector is inserted into the board side connector mounted on the control circuit board. In the state in which an opening for connection is formed, a cylindrical partition that surrounds the periphery of the opening toward the control circuit board is formed, and the board case accommodates the control circuit board The board-side connector is inserted into the space in the cylindrical partition wall, and the tip of the partition wall is in contact with the peripheral edge of the board-side connector, thereby removing the board-side connector. The electronic component mounting area of the control circuit board, characterized in that occluded within the board case.

  A second aspect of the present invention is the control board assembly for a gaming machine according to the first aspect, wherein the board-side connector is formed to have a pin terminal penetrating perpendicularly to a plate-like base member. In the state in which the wiring surface is covered with the base member and the board-side connector is mounted on the control circuit board, and the board case accommodates the control circuit board, the tip of the cylindrical partition wall portion is the base By contacting the peripheral edge of the member, the electronic component mounting area of the control circuit board excluding the board-side connector is closed in the board case.

  The invention according to claim 3 is the control board assembly for gaming machines according to claim 1 or 2, wherein the harness-side connector connected to the board-side connector has at least two predetermined positions on its side surface. A flexible locking piece is provided which extends in a belt shape and has a tapered protrusion formed at the tip, and the tip of the locking piece is connected to the harness side in a state where the harness side connector is connected to the board side connector. It is inserted into a gap between the connector and the opening, and the edge of the opening and the tapered convex portion of the locking piece are locked to restrict the harness side connector from being pulled out.

  According to a fourth aspect of the present invention, a required electronic component and a board-side connector are mounted on a control circuit board having a wiring surface on which a wiring pattern is formed, and the control is performed with the board-side connector exposed to the outside. A control board assembly for a gaming machine that accommodates a circuit board in a board case, wherein the board case is in contact with the control circuit board in a state in which the control circuit board is accommodated, thereby mounting the board-side connector. A partition wall portion that isolates the electronic component mounting region from the substrate and closes it in the substrate case is formed.

  According to the control board assembly for a gaming machine according to claim 1, in the state in which the board case accommodates the control circuit board, the tip of the cylindrical partition wall portion formed at the periphery of the opening through which the harness side connector is inserted is By contacting the peripheral edge of the board-side connector, the electronic component mounting area excluding the board-side connector is closed in the board case. In other words, the partition wall portion separates the board-side connector area from the other electronic component mounting area, so that the wire or the like cannot enter the electronic component mounting area in the board case from the opening. In addition, the partition portion functions as a rib that reinforces the rigidity of the substrate case such as bending, and it becomes extremely difficult to open the substrate case by inserting a tool or the like in the vicinity of the opening. Therefore, it is possible to reliably prevent unauthorized access to the control circuit board such as opening a gap in the opening and allowing a wire or the like to enter the board case therefrom. Further, the function of preventing such unauthorized access can be realized with a simplified substrate case structure.

  According to the control board assembly for a gaming machine according to claim 2, in a state where the board case accommodates the control circuit board, the tip of the cylindrical partition wall portion comes into contact with the peripheral edge of the base member of the board side connector. The electronic component mounting area excluding the board-side connector is closed in the board case. That is, since the board-side connector area and the electronic component mounting area are blocked by the partition wall, unauthorized access to the wire or the like from the opening into the electronic component mounting area in the board case is prevented.

  According to the control board assembly for a gaming machine according to claim 3, the taper convex portion of the locking piece provided on the harness side connector connected to the board side connector is engaged with the edge of the opening for inserting the connector. Since it has stopped, the harness which has the said harness side connector cannot be pulled out easily. As a result, it is possible to make the fraudulent person hesitant to act such as unjustly removing the harness and taking away the entire control board assembly, and to check such illegal acts.

  According to the control board assembly for a gaming machine according to claim 4, in the state in which the board case accommodates the control circuit board, the tip of the partition wall comes into contact with the control circuit board, so that the board-side connector of the control circuit board The electronic component mounting area is isolated from the mounting area and closed in the board case. That is, the partition wall portion blocks the board-side connector area from the other electronic component mounting area, so that the wire or the like cannot enter the electronic component mounting area in the board case. Further, the partition wall functions also as a rib that reinforces rigidity such as bending of the substrate case, and it becomes extremely difficult to pry open the substrate case by inserting a tool or the like. Therefore, unauthorized access to the control circuit board, such as a wire entering the board case from the gap of the board case, can be reliably prevented. Further, the function of preventing such unauthorized access can be realized with a simplified substrate case structure.

  As described above, according to the control board assembly for a gaming machine of the present invention, it is a control board assembly for a gaming machine that houses a control circuit board in a board case with the board side connector exposed to the outside. The electronic component mounting area excluding the connector is blocked by the partition wall and closed in the board case. As a result, the wire or the like cannot enter the electronic component mounting area in the board case. Further, the partition wall functions also as a rib that reinforces rigidity such as bending of the substrate case, and it becomes extremely difficult to pry open the substrate case by inserting a tool or the like. Therefore, unauthorized access to the control circuit board, such as a wire entering the board case from the gap of the board case, can be reliably prevented. Further, the function of preventing such unauthorized access can be realized with a simplified substrate case structure.

  Preferred embodiments of the present invention will be described below with reference to the drawings. First, a schematic configuration of a slot machine will be described as an example of a gaming machine to which the present invention is applied. FIG. 1 is a front view showing the external structure of the slot machine SM. In the slot machine SM, a front door FD forming a so-called front mask is attached to a housing that is a substantially rectangular box so as to be opened and closed. The front door FD is roughly divided into an upper panel portion UP and a lower panel portion LP, which are designed to enhance the visual effect and are integrally formed of hard plastic. In addition, a tray unit TU in which a tray portion for storing medals is formed is provided below the front door FD.

  An upper lamp UL and side lamps SL, SL having a built-in high-intensity light emitting diode are disposed on the peripheral portion of the upper panel unit UP. In addition, sound emitting units SAL and SAR for production that have built-in speakers and generate sound effects related to games are arranged on the left and right of the upper panel unit UP, respectively. Further, a liquid crystal display unit FPD is disposed between the sound emission units for production SAL and SAR. Note that the liquid crystal display unit FPD mainly displays images related to game effects.

  A panel unit PU is attached to the center of the upper panel unit UP, and a substantially rectangular transparent display window FW is formed in the center thereof. Then, cylindrical reels R1, R2, and R3 provided in the housing through the display window FW are visually observed. The reels R1, R2, and R3 are arranged in the horizontal direction along the respective rotation axes, thereby forming a reel unit RU. In addition, a plurality of types of symbols are arranged at substantially equal intervals on the outer peripheral surface of each reel R1, R2, and R3, and three vertical and three horizontal rows of symbols displayed on the outer peripheral surface of the reel are viewed through the display window FW. .

  Between the upper panel portion UP and the lower panel portion LP, an operation console OP in which switches for performing a game operation are arranged is integrally formed. The console OP is provided with a medal insertion part MD having an insertion slot for inserting medals, a bet button BET, a start lever STL, and stop buttons STP1, STP2, and STP3.

  The bet button BET is a button switch for presenting the number of medals to bet on one game of the slot machine SM. The slot machine SM rotates the reels R1, R2, and R3 all at once when a bet is placed on the game by pressing any bet button BET and the start lever STL is tilted. At this time, the slot machine SM performs winning lottery by internal processing (internal lottery). Then, the corresponding reels R1, R2, and R3 are stopped by pressing the stop buttons STP1, STP2, and STP3, respectively. When all the reels are stopped and the combination of symbols displayed on the active line set in the display window FW matches the combination related to the winning winning in the above-described internal lottery, the winning is determined.

  The lower panel LP is provided with a display panel DP for displaying a picture of an appearing character and the like so that the player can recognize the model type of the slot machine SM. The saucer unit TU arranged below the lower panel portion LP has a medal payout port MEX for discharging medals to the saucer portion at the time of winning, etc., and an effect sound emitting portion SAB that has built-in speakers and produces effect sound effects. Are arranged respectively.

  Next, the internal structure of the slot machine SM will be described with reference to FIG. FIG. 2 is a front view showing the internal structure of the slot machine SM in a state where the front door FD is opened from the housing MB.

  First, the internal structure on the housing MB side will be described with reference to FIG. A control board assembly MBA according to the present invention that houses a main control board 100 that performs overall control of the overall operation of the slot machine SM is attached to the upper part of the housing MB. The main control board 100 includes MPU (Micro Processor Unit), ROM (Read Only Memory), RAM (Random Access Memory), and other electronic components such as an interface circuit having a function of matching control signals to communicate with peripheral devices. It is a control circuit board formed on the basis of a microcomputer.

  A reel unit RU having a unit structure in which reels R1, R2, and R3 are arranged in the rotation axis direction is provided in the center of the housing MB. The reel unit RU has a predetermined height in the housing MB so that when the front door FD is closed on the housing MB side, the reels R1, R2, and R3 face the display window FW formed in the panel unit PU. It is positioned and attached to a fixed frame. Each reel R1, R2, R3 is rotationally driven by a stepping motor connected to the respective central axis. At the top of the reel unit RU, a spinning device substrate (not shown) for sending a four-phase drive pulse signal to each stepping motor is attached, and the main control substrate 100 applies a spinning drive (excitation) pulse to the spinning device substrate. By sending data, the reels are controlled to rotate, brake and stop.

  Below the reel unit RU, medals inserted from the medal insertion unit MD are stored, and a hopper device HPU that discharges medals from a discharge port at the time of winning a prize, and spilled medals overflowing from the hopper device HPU are accommodated. The auxiliary storage unit MST and a main power supply device PWU that distributes power to each device built in the slot machine SM are provided.

  Next, the internal structure on the back side of the front door FD will be described. Speakers SPL and SPR are attached to the upper surface of the rear surface of the front door FD so as to face the sound emitting portions SAL and SAR for effects described above. Further, a sub-control board SBA for controlling and driving the liquid crystal display unit, the speakers SPL, SPR, and the like is attached to the back surface of the liquid crystal display unit FPD (not shown) disposed between the speakers SPL, SPR. Sub-control board SBA, display control of effect video by liquid crystal display unit FPD, illumination control using upper lamp UL, side lamp SL, etc., effect sound effect control using effect sound emission parts SAL, SAR, SAB, etc. This is a control circuit board for mainly performing control related to the effect of the game.

  Below the sub-control board SBA, a panel unit PU having a transparent display window FW for viewing the reels R1, R2, and R3 on the front surface is attached. Operation of the cold cathode fluorescent lamp CFL for irradiating the outer peripheral surface of the reels R1, R2, and R3 to brightly display the design, the start lever STL, the stop buttons STP1, STP2, and STP3 on the back side of the panel unit PU A central display board CBA that functions as a relay board for transferring output signals of the switches to the main control board 100 is provided and formed as a unit.

  A medal sorting device MSU is attached below the panel unit PU. The medal sorting device MSU is a device that determines and distributes the suitability of medals inserted into the medal insertion unit MD. The medal sensor built in the medal sorting device MSU detects a regular medal inserted in the medal insertion unit MD and sends a detection signal to the main control board 100.

  Below the medal sorting device MSU, a guide member G1 for guiding regular medals distributed by the medal sorting device MSU to the hopper device HPU provided in the housing MB, and medals excluded by the medal sorting device MSU. A guide member G2 for guiding (or foreign matter) to the medal discharge port MEX is provided. In addition, a guide member G3 that guides medals discharged from the discharge port of the hopper device HPU to the medal discharge port MEX is provided at the lower part on the back side of the front door FD. Further, a speaker SPB is mounted adjacent to the medal discharge port MEX so as to face the above-described effect sound emitting unit SAB.

  Although not shown in FIG. 2, the main control board 100 according to the present invention is connected to the above-mentioned sub via a harness having a predetermined length provided with connectors at both ends (hereinafter referred to as “harness with connector”). Communication of control signals and operation signals to control circuit boards such as the control board SBA and the spinning device board, relay boards such as the central display board CBA, electronic equipment units such as the hopper device HPU, and the main power supply device PWU. It is electrically connected so that necessary power can be supplied.

  The slot machine SM configured as described above generally operates as follows. That is, the slot machine SM enters a standby state when winning in the previous game and the payout of medals are completed, or when losing is confirmed in the previous game. In this standby state, when a player inserts a medal into the medal insertion unit MD, and presses the bet button BET to place a prescribed number of medals on the game from medals (credits) stored therein, the game starts. It becomes a state.

  When the start lever STL is tilted in the game start state, the main control board 100 starts to rotate the three reels R1, R2, and R3 all at once. At the same time, the winning combination is internally drawn, and the result is stored in a flag (internal lottery flag).

  Next, when the player presses the stop buttons STP1, STP2, and STP3 in an arbitrary order, the main control board 100 performs control to sequentially stop the reels accordingly. Then, by detecting the stop of all the reels R1, R2, and R3, it is determined whether or not the symbol displayed by each reel matches the symbol combination related to the winning combination corresponding to the flag.

  When the winning winning combination is displayed on the active line and the winning is confirmed, a medal with a predetermined number of payouts is added to the number of credits according to the type of the winning combination or the hopper device HPU is driven. Then, the medal of the number of dividends is paid out to the tray part of the tray unit TU.

  The outline of the slot machine SM has been described above as an example of the gaming machine to which the present invention is applied. Next, the configuration of the control board assembly MBA according to the present invention in which the main control board 100 is accommodated in the board case will be described. Here, FIG. 3 is an exploded perspective view of the control board assembly MBA, and FIG. 4 is a perspective view showing a state in which the control board assembly MBA is attached to the housing MB via the bracket member BR.

  Here, as shown in FIG. 3, the bracket member BR includes a flat plate portion 10 that faces the back surface of the control board assembly MBA, an L-shaped rib portion 11 that stands forward from the left edge to the lower edge, and It is formed integrally with a support base portion 12 erected forward at the right edge and a support protrusion portion 13 that protrudes further forward from the support base portion 12. Engagement recesses 11a are formed in two upper and lower portions on the inner wall of the rib portion 11, and a pair of upper and lower locking arms 14 extending forward are formed on the right edge of the flat plate portion 10. The control board assembly MBA main body is held by the bracket member BR by the engagement recess 11 a and the locking arm 14. For example, four sealing cylinder portions 15 constituting a sealing mechanism are formed in the flat plate portion 10 adjacent to the inside of the support base portion 12. The bracket member BR is coupled and fixed to the back plate of the housing MB by screws inserted into a plurality of screw holes 10a formed in the flat plate portion 10.

  As is apparent from FIG. 3, the control board assembly MBA includes a main control board 100, a main body case 200, and an upper lid case 300, and a sealing mechanism that couples the upper lid case 300 and the main body case 200 in a crimped state. The connection member 800 is used as the connection medium. The connecting member 800 is also used in common for the sealing mechanism between the control board assembly MBA main body and the bracket member BR.

  A conductive wiring pattern made of copper (Cu) is printed on both sides of the main control board 100, and electronic parts such as the MPU 101, the ROM 102, and the RAM 103 described above are mounted on one side (front side). The control circuit is formed. In addition, the main control board 100 includes a plurality of board-side connectors 110 and 120 for electrical connection with other control circuit boards built in the slot machine SM such as the sub-control board SBA and electronic devices at predetermined positions. Has been implemented.

  In the present specification, both surfaces of the main control board 100 on which the above-described wiring pattern is formed are referred to as “wiring surfaces”, and an area where electronic components such as the MPU 101 and the ROM 102 are mounted is referred to as an “electronic component mounting area”. It is called.

  3, the board-side connector 110 has a plurality of pin plug terminals 112 penetrating through a flat base member 111 and arranged orthogonally to the base member 111 (on the board). The other connectors 120 and the like have the same structure). Although not shown in the drawing, the tip of the pin plug terminal 112 on the board side passes through a through hole formed in the main control board 100 and is soldered to a wiring pattern formed on the back surface of the board. Connected. Accordingly, the board-side connectors 110 and 120 cover the wiring surface of the main control board 100 and are mounted at predetermined positions.

  The main body case 200 is integrally formed of transparent plastic as a substantially rectangular box whose front surface is open, and the main control board 100 is coupled and fixed to the bottom plate portion via small screws. On the upper side wall of the main body case 200, hinge shaft portions 201 for hinge coupling with the upper lid case 300 are formed at three positions with a predetermined interval. Further, two locking arms 202 having a locking hole 202a extending forward and sealing cylinders 205 constituting a sealing mechanism for caulking and coupling the upper lid case 300 are formed at four locations on the lower side wall. ing.

  The upper lid case 300 is a substantially rectangular lid integrally formed of transparent plastic, and a hinge bearing portion 301 is formed on the upper side wall in alignment with the hinge shaft portion 201 of the main body case 200. The sealing cap portion 305 and the control board assembly MBA are attached to the bracket member BR in alignment with the sealing cylinder portion 205 of the main body case 200 and aligned with the sealing cylinder portion 15 of the bracket member. A stop cap portion 306 is formed.

  In addition, a rectangular frame portion 302 extending around the sealing cap portion 306 and engagement protrusions 303 on the left side wall of the upper lid case 300 are formed at two positions on the right side of the upper lid case 300.

  Further, the upper lid case 300 is formed with connector openings 310 and 320 that are aligned with the above-described board-side connectors 110 and 120 and open to have substantially the same shape and dimensions as the board-side connectors 110 and 120. As shown in FIG. 4, a harness 400 with a connector for electrically connecting to another control circuit board or an electronic device is inserted into the connector openings 310 and 320 and connected to the board-side connectors 110 and 120. . Further, cylindrical partition walls 311 and 321 that surround the peripheral edges of the connector openings 310 and 320 toward the main control board 100 are integrally formed on the back side of the upper lid case 300.

  The main body case 200 and the upper cover case 300 are fitted with a hinge shaft portion 201 and a hinge bearing portion 301 so that they can be opened and closed and swung. When the main control board 100 is accommodated and the upper lid case 300 is closed, as shown in FIG. 4, the locking projections formed at the locking holes of the locking arm 202 on the main body case 200 side and the lower end of the upper lid case 300. 304 engages. At this time, the end portions of the peripheral walls of the main body case 200 and the upper lid case 300 are fitted and adhered to each other.

  If the upper lid case 300 is simply closed on the main body case 200, the locking arm 202 is merely engaged with the locking projection 304 by its elastic deformation force. If the engagement state is released, the upper lid case 300 can be easily obtained. Can be opened. Therefore, when the upper lid case 300 is closed, the connecting member 800 is inserted into and engaged with any one of the sealing mechanisms constituted by the sealing cylinder portion 205 of the main body case 200 and the sealing cap portion 305 of the upper lid case 300. As a result, these case members are sealed in a crimped state (in a coupled state that cannot be released by an external operation once engaged or fitted). As a result, it is difficult to open the upper lid case 300, and the sealing mechanism coupled in the crimped state cannot be released unless the sealing cap portion 305 is separated from the main body of the upper lid case 300. Left behind.

  Here, FIG. 5 is a cross-sectional view showing the structure of the board-side connector 110 portion to which the YZ plane shown in FIG. As shown in FIG. 5, in a state where the main control board 100 is accommodated in the main body case 200 and the upper lid case 300, the board-side connector 110 is inserted into the inner space of the partition wall 311, and the tip of the partition wall 311 Is in contact with the peripheral edge of the base member 111 of the board-side connector 110.

  With this structure, the above-described electronic component mounting area excluding the board-side connector 110 is hermetically closed in the upper lid case 300 and the main body case 200. That is, since the partition wall portion 311 disposed so as to surround the board side connector 110 blocks the board side connector 110 from other electronic component mounting regions, the wire or the like is transferred from the connector opening 310 to the electronic inside the board case. It becomes impossible to enter the component mounting area. In addition, partition portions 311 and 321 surrounding the connector openings 310 and 320 are integrally formed on the upper lid case 300 toward the substrate, and the partition portions 311 and 321 enhance rigidity such as bending of the upper lid case 300. It also functions as a rib. For this reason, in the vicinity of the connector openings 310 and 320, it is extremely difficult to insert a tool or the like and bend and pry up the upper lid case 300.

  From the above, it is possible to reliably prevent unauthorized access to the main control board 100, such as opening a gap in the connector opening 310 and allowing a wire or the like to enter the board case therefrom. Further, the unauthorized access prevention function can be realized with a simplified substrate case structure.

  Further, the base member 111 of the board-side connector 110 (120) may have elastic characteristics. In this case, the base member 111 is elastically compressed by setting the thickness of the base member 111 to be slightly thicker than the distance between the tip of the partition wall 311 (321) and the surface of the main control circuit 100, and the tip of the partition wall 311. Abut. Therefore, it is possible to absorb the mutual manufacturing errors of the upper lid case 300 and the main control board 100 and close the electronic component mounting area in the board case while having more adhesiveness. For the same purpose, an elastic member may be attached to the tip of the partition wall 311 (321).

  As shown in FIG. 5, the harness 400 with connector includes a harness 420 that is a bundle of a plurality of signal lines and a harness-side connector 410 that is provided at the tip of the harness 420. In the harness-side connector 410, socket terminals 412 that are in contact with the pin plug terminals 112 of the board-side connector 110 are respectively disposed in box-shaped connector cases 411 that open on the connection side. That is, the harness 400 with a connector is inserted into the connector opening 310 from the Y direction shown in the figure, and each socket terminal 412 of the harness side connector 410 contacts the corresponding pin plug terminal 112 and is connected to the board side connector 110. .

  Moreover, the harness 400 with a connector may be provided with a measure for preventing pulling out from the main control board 100 as shown in FIG. Here, FIG. 6 is a cross-sectional view showing the structure of the board-side connector 110 portion in a state where the YZ surface is a cut surface and the connector-attached harness 400 is connected. In the present embodiment, the connector opening 310 of the upper lid case 300 is formed with a partition wall 311 having an inner diameter dimension slightly larger than the opening and surrounding the periphery. As a result, the connector opening 310 of the upper lid case 300 is formed with a locking surface having a predetermined width on the back surface side of the periphery thereof.

  Moreover, the harness 400 with a connector of this embodiment is provided with flexible strip-like locking pieces 430 at both side positions of the harness-side connector 410. A tapered protrusion 431 having a barb shape is formed at the tip of each locking piece 430. In a state where the harness side connector 410 is connected to the board side connector 110, the taper convex portion 431 of the locking piece 430 is folded back so as to face outward, and the leading end of the locking piece 430 is connected to the harness side connector 410 and the connector opening 310. Is inserted into the gap formed between the two and the tapered convex portion 431 of the locking piece 430 is locked to the locking surface described above. As a result, even if the connector-attached harness 400 connected to the board-side connector 110 is pulled from the outside, the locking piece 430 is locked to the peripheral edge portion of the connector opening 310, and thus cannot be easily pulled out. Therefore, according to the present embodiment, it is possible to make an act of fraud such as removing the connector-attached harness 400 and taking away the control board assembly MBA, and to check such an illegal act.

  As shown in FIGS. 3 and 4, the control board assembly MBA assembled to accommodate the main control board 100 has the engaging protrusions 303 formed on the left side wall of the upper lid case 300 with the engagement protrusions 303 of the bracket member BR. By inserting the support projection 13 of the bracket member BR into the inner space of the rectangular frame portion 302 while engaging with the engagement recess 11a, the engagement arm 14 on the bracket member BR side is elastically deformed, and the engagement projection at the tip end 14a and the corner | angular part of the rectangular frame part 302 engage. As a result, the control board assembly MBA is stably supported with respect to the bracket member BR. At this time, the control board assembly MBA is inserted by inserting the connecting member 800 into any one of the sealing mechanisms constituted by the sealing cylinder portion 15 of the bracket member BR and the sealing cap portion 306 of the upper lid case 300. The main body is sealed against the bracket member BR in a crimped state. This makes it difficult to remove the control board assembly MBA from the housing MB (bracket member BR) and leaves a trace when it is removed.

  Next, still another embodiment of the control board assembly according to the present invention will be described with reference to FIGS. Here, FIG. 7 is an exploded perspective view of the control board assembly MBA according to the present embodiment, and FIG. 8 is a view of the board-side connectors 150 and 160 of the control board assembly MBA with the XY plane shown in FIG. It is sectional drawing showing a structure. In these drawings, the same or corresponding parts as those of the control board assembly MBA according to the embodiment described above are denoted by the same reference numerals. In the present embodiment, the above-described detailed description is referred to for parts common to the control board assembly MBA according to the above-described embodiment, and the description thereof is omitted.

  A conductive wiring pattern is printed on both surfaces of the main control board 100, and electronic components such as the MPU 101, the ROM 102, and the RAM 103 are mounted on one surface (front surface). The area of the main control board 100 on which the electronic component is mounted is referred to as an electronic component mounting area 180 for convenience. In addition, adjacent to the electronic component mounting region 180, in the vicinity of both ends of the main control board 100, board-side connectors 150 and 160 for electrically connecting to external control circuit boards such as the sub-control board SBA and electronic devices. , 170, etc. are mounted. The area where the board-side connectors 150, 160, and 170 are mounted is called a connector mounting area 190 here.

  The upper lid case 300 is formed with connector openings 350, 360, 370, etc. that are aligned with the above-described board-side connector 150 and the like and open to have substantially the same shape and dimensions as the board-side connector. As shown in FIG. 8, harnesses 500 and 600 with connectors for connecting to other control circuit boards and the like are attached to the board-side connectors 150 and 160 through the connector openings 350 and 360. For example, the board-side connector 150 is a socket-type connector, and a plug-type harness-side connector 510 provided at the end of the harness 520 is inserted through the connector opening 350 and connected. At this time, the pin terminals of the harness-side connector 510 are inserted into the socket terminals of the board-side connector 150, thereby making contact. Further, for example, the board-side connector 160 is a plug-type connector, and a socket-type harness-side connector 610 provided at the end of the harness 620 is inserted through the connector opening 360 and connected. That is, the pin terminals of the board-side connector 160 are inserted into the socket terminals of the harness-side connector 610 so that they contact each other.

  Further, a partition wall portion 390 toward the main control board 100 is integrally formed on the back surface side of the upper lid case 300. When the main control board 100 is accommodated, the tip of the partition wall 390 comes into contact with the front surface of the main control board 100, and the electronic component mounting area 180 and the connector mounting area 190 are cut off.

  With such a structure, the electronic component mounting region 180 described above is hermetically closed in the upper lid case 300 and the main body case 200, and a wire or the like is transferred from the connector openings 350, 360, 370, etc. to the electronic component mounting region 180 in the board case. It cannot be invaded. In addition, the partition wall portion 390 formed on the back surface of the upper lid case 300 also functions as a rib that reinforces the rigidity of the upper lid case 300 such as bending. Therefore, a tool or the like is inserted from the connector openings 350, 360, and 370. Thus, it is extremely difficult to bend and open the upper lid case 300.

  From the above, it is possible to reliably prevent unauthorized access to the main control board 100, such as opening a gap in the board case from the connector opening 350 or the like and causing a wire or the like to enter the inside. Further, the unauthorized access prevention function can be realized with a simplified substrate case structure.

  Although the embodiment of the control board assembly according to the present invention has been described by taking the main control board of the slot machine as an example, it may be applied to a control board assembly that accommodates other control boards such as sub-control boards. The present invention is applicable not only to slot machines but also to pachinko machines and other gaming machines.

FIG. 1 is a front view showing an external structure of the slot machine. FIG. 2 is a view showing the structure inside the slot machine housing with the front door opened. FIG. 3 is an exploded perspective view of a control board assembly according to an embodiment of the present invention. FIG. 4 is a perspective view showing a state in which the control board assembly according to the embodiment of the present invention is attached to the housing of the slot machine via the bracket member. FIG. 5 is a cross-sectional view showing the structure of the board side connector portion of the control board assembly to which the harness with connector is connected, with the YZ plane shown in FIG. FIG. 6 is a cross-sectional view illustrating a structure of a board-side connector portion of a control board assembly to which a harness with connector according to another embodiment is connected. FIG. 7 is an exploded perspective view of a control board assembly according to still another embodiment. FIG. 8 is a cross-sectional view showing the structure of the board-side connector portion of the control board assembly with the XY plane shown in FIG. 7 as a cut surface.

Explanation of symbols

SM ... slot machine,
FD ... Front door, UP ... Upper panel, LP ... Lower panel,
TU ... Tray unit, UL ... Upper lamp, SL ... Side lamp,
SAL, SAR, SAB ... Sound emission part for production, FPD ... Liquid crystal display unit,
PU ... Panel unit, FW ... Display window,
RU ... reel unit, R1, R2, R3 ... reel,
OP ... console, MD ... medal insertion part, BET ... bet button,
STL ... Start lever,
STP1, STP2, STP3 ... Stop button,
MEX ... medal payout exit,
MB: Housing,
MBA: Control board assembly,
HPU ... Hopper device, MST ... Auxiliary storage unit MST, PWU ... Main power supply device,
SBA: Sub-control board, MSU: Medal sorting device, CBA: Central display board,
CFL: Cold cathode fluorescent lamp, G1, G2, G3: Guide member,
BR: Bracket member,
10 ... Flat plate part, 10a ... Screw hole,
11 ... rib part, 11a ... engagement recessed part,
12 ... Support base part, 13 ... Supporting projection part,
14 ... locking arm, 14a ... locking protrusion, 15 ... sealing cylinder,
100 ... main control board,
101 ... MPU, 102 ... ROM, 103 ... RAM,
110 ... Board side connector, 111 ... Base member, 112 ... Pin plug terminal,
150, 160, 170 ... board side connector,
180 ... Electronic component mounting area, 190 ... Connector mounting area,
200 ... body case,
201 ... Hinge shaft, 202 ... Locking arm, 202a ... Locking hole,
205 ... Sealing cylinder part,
300 ... upper lid case,
301 ... Hinge bearing part 302 ... Rectangular frame part 303 ... Engagement convex part,
304: locking projection, 305, 306 ... sealing cap,
310 ... Connector opening, 311 ... Bulkhead,
320 ... Connector opening, 321 ... Bulkhead,
350, 360, 370 ... connector opening, 390 ... partition wall,
400 ... harness with connector,
410 ... harness side connector, 411 ... connector case,
412 ... socket terminal, 420 ... harness,
430 ... locking piece, 431 ... tapered taper,
500 ... harness with connector,
510 ... Harness side connector, 520 ... Harness,
600 ... harness with connector,
610 ... Harness side connector, 620 ... Harness,
800 ... Connection member

Claims (4)

A game in which required electronic components and a board-side connector are mounted on a control circuit board having a wiring surface on which a wiring pattern is formed, and the control-circuit board is accommodated in a board case with the board-side connector exposed to the outside. Control board assembly for a machine,
The board case is formed with an opening for inserting and connecting the harness-side connector to the board-side connector mounted on the control circuit board, and surrounds the periphery of the opening to control the circuit board side A cylindrical partition toward the
In the state in which the substrate case accommodates the control circuit board, the board-side connector is inserted into the space in the cylindrical partition wall, and the tip of the partition wall comes into contact with the peripheral edge of the board-side connector. A control board assembly for a gaming machine, wherein an electronic component mounting area of the control circuit board excluding the board-side connector is closed in the board case. The board-side connector is formed having pin terminals that penetrate perpendicularly to a plate-like base member, covers the wiring surface with the base member, and mounts the board-side connector on the control circuit board,
In the state in which the substrate case accommodates the control circuit board, the tip of the cylindrical partition wall abuts on the periphery of the base member, so that the electronic component mounting area of the control circuit board excluding the board-side connector can be reduced. The control board assembly for a gaming machine according to claim 1, wherein the board is closed in the board case. The harness-side connector connected to the board-side connector is provided with a flexible locking piece that extends in a belt shape from a predetermined position on at least two sides of the side surface and has a tapered protrusion formed at the tip.
With the harness-side connector connected to the board-side connector, the tip of the locking piece is inserted into the gap between the harness-side connector and the opening, and the edge of the opening and the locking piece taper The control board assembly for a gaming machine according to claim 1 or 2, wherein the harness side connector is restricted from being pulled out by locking the convex portion. A game in which required electronic components and a board-side connector are mounted on a control circuit board having a wiring surface on which a wiring pattern is formed, and the control-circuit board is accommodated in a board case with the board-side connector exposed to the outside. Control board assembly for a machine,
A partition wall portion that isolates the electronic component mounting area from the mounting area of the board-side connector and closes the board case in the board case by contacting the control circuit board in a state in which the control circuit board is accommodated in the board case A control board assembly for gaming machines, characterized in that is formed.

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