JP2006158850A - Connector connection structure in control circuit board for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector connection structure in a control circuit board for the game machines which achieves sorts of the exact prevention of the access to the control circuit board committed, for example, by penetrating a wire between the connector and the board case. <P>SOLUTION: In the connector connection structure, the harness side connector (410) is connected to the board side connector (110) mounted on the main control board (100) of a slot machine through an opening part (310) formed in the case (300). A closure member (500) gets a cable (420) inserted and closes the opening part secured. This achieves the exact prevention of the dishonest act committed, for example, by penetrating the wire or the like through the opening part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a connector connection structure in a control circuit board provided in a gaming machine such as a pachinko machine, a slot machine or the like when connected to another control circuit board or a built-in device via a harness.

  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, a control circuit board such as a main control board of the gaming machine is accommodated in a board case formed of, for example, a transparent resin material and installed in the housing. In general, a board case that houses a control circuit board for a gaming machine is composed of a pair of opposing body cases and an upper lid case, and both cases are placed so that even if one of the cases is opened, the trace remains. Sealing structures that are coupled in a crimped state are provided at a plurality of locations (see, for example, Patent Document 1).

  Further, in order to electrically connect the control circuit board to another control circuit board or the electronic device unit via the harness, the board case has an opening for inserting the harness side connector and connecting to the board side connector. It is formed. In this case, even if it is attempted to eliminate the gap between the connector and the opening, in reality, it is necessary to take clearance in consideration of various manufacturing errors. There has been a risk of unauthorized access such as malfunctioning of the formed control circuit.

  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 is provided to partition the connector mounting area and the electronic component mounting area inside the board case. (For example, refer to 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 conventional problems, and is a control circuit for a gaming machine that reliably prevents unauthorized access to a control circuit board such as a wire entering from between a connector and a board case. An object of the present invention is to provide a connector connection structure on a board.

  In order to solve the above-described problem, the invention according to claim 1 is directed to a board-side connector mounted on a control circuit board for a gaming machine through a connector opening formed in a board case that accommodates the control circuit board. A connector connection structure for connecting a harness side connector, having a flat plate portion capable of closing the connector opening, and having a through hole through which a cable connected to the harness side connector can be inserted in the flat plate portion. It is characterized by including a member, and the closing member is inserted in the insertion hole to close the connector opening in a closed state.

  The invention according to claim 2 is the connector connection structure according to claim 1, wherein the closing member has an opening in at least one direction of the connector opening on a side of the flat plate portion facing the connector opening. A pair of locking portions that are separated by a width are formed, the pair of locking portions can be elastically shifted inward along the flat plate portion, and have a claw shape that protrudes outwardly opposite to each other, Each of the locking portions is pressed and inserted into the connector opening, and the claw portion is locked to the inner surface of the peripheral edge of the connector opening, thereby closing the connector opening in a closed state.

  According to the connector connection structure of the first aspect, since the closing member closes the connector opening in a state where the harness cable is inserted through the insertion hole, the gap between the board case and the connector opening can be eliminated. Moreover, since the closing member closes the connector opening in a closed state, the closing member cannot be opened from the outside. For these reasons, unauthorized access such as the entry of a wire into the board case through the gap between the board case and the connector opening is reliably prevented. Further, such an unauthorized access prevention function can be realized with a simplified structure.

  According to the connector connection structure of claim 2, each locking portion of the closing member is pressed and inserted into the connector opening, and the claw portion is locked to the inner surface of the peripheral edge of the connector opening, so that the connector opening is fitted and killed. Block in state. As a result, the closing member cannot be opened from the outside, and unauthorized access such as entry of a wire or the like into the board case through the gap between the board case and the connector opening is reliably prevented.

  As described above, according to the connector connection structure of the present invention, since the closing member that closes the connector opening in a state where the harness cable is inserted is provided, the gap between the board case and the connector opening can be eliminated. Moreover, since the closing member closes the connector opening in a closed state, the closing member cannot be opened from the outside. For these reasons, unauthorized access such as the entry of a wire into the board case through the gap between the board case and the connector opening is reliably prevented. Further, such an unauthorized access prevention function can be realized with a simplified structure.

  Preferred embodiments of the present invention will be described below with reference to the drawings. First, a schematic configuration of a gaming machine to which the connector connection structure of the present invention is applied will be described taking a slot machine as an example. 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 so as to be openable and closable with respect to an opening side of a housing which is a substantially rectangular box. 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 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 is connected to the sub-control board SBA and the above-described sub-control board SBA via a harness having a predetermined length provided with connectors at both ends (hereinafter referred to as “harness with connector”). Enables communication of control signals, operation signals, etc. to control circuit boards such as 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 the required 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 main control board 100 detects a tilting operation of the start lever STL by the player 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 pressing operation of the stop buttons STP1, STP2, and STP3 is detected while the reels R1, R2, and 3 are rotating, 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 a gaming machine to which the present invention is applied. Next, as an embodiment to which the connector connection structure according to the present invention is applied, the main control board 100 is accommodated in a board case. The structure of the control board assembly MBA that is assembled 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 connection medium of a sealing mechanism that couples the upper lid case 300 and the main body case 200. The connecting member 800 is used. 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 has board-side connectors 110, 120, 130 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. There are multiple implementations.

  The main body case 200 is integrally formed of transparent plastic as a substantially rectangular box that opens on the front side, and the main control board 100 is coupled and fixed to the inner side of the back plate via a small screw. 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. The lower side wall has two locking arms 202 having locking holes 202a extending forward, and four sealing cylinders 205 constituting a sealing mechanism for coupling and sealing the upper lid case 300. Is formed.

  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. Stop cap portions 306 are respectively 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.

  In addition, the upper lid case 300 is formed with connector openings 310, 320, and 330 that are aligned with the above-described board-side connectors 110, 120, and 130 and have substantially the same shape and dimensions as the corresponding board-side connectors. ing. As shown in FIG. 4, for example, a harness 400 with a connector for electrically connecting to other control circuit boards or electronic devices in the slot machine SM is connected to the board-side connector 110 through a connector opening 310. . At this time, the connector 410 is connected to the board-side connector 110 in a state where the cable 420 of the connector-attached harness 400 is inserted into the cable insertion hole 502 formed in the closing member 500, and then the connector opening 310 is closed with the closing member 500. To do. Details of the connector connection structure will be described later.

  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. Thus, these case members are joined together. At this time, since the connection member 800 is confined in the sealing cylinder portion 205 and the sealing cap portion 305 and engaged inside, the engagement state cannot be released from the outside. That is, when any sealing mechanism is coupled, the upper lid case 300 cannot be opened from the main body case 200 unless the sealing cap portion 305 of the sealing mechanism is separated from the main body of the upper lid case 300. . This makes it difficult to open the upper lid case 300 and leaves a trace if it is opened. Note that a state in which such sealing mechanisms are combined is referred to as a “crimped state” in this specification.

  Next, as an embodiment of the connector connection structure according to the present invention, details of the connector connection structure for connecting the connector 410 of the harness 400 to the board-side connector 110 through the connector opening 310 will be described. Here, FIG. 5 is a cross-sectional view illustrating the structure of the board-side connector 110 to which the connector-attached harness 400 is connected and the peripheral portion thereof, with the YZ plane shown in FIG. FIG. 6 is a cross-sectional view showing the structure of the board-side connector 110 and its peripheral part with the YX plane as the cut surface, and FIG. 6 (a) shows the state before the connector-attached harness 400 is connected, FIG. 5B shows a state after the connector-attached harness 400 is connected to the board-side connector 110.

  Referring to these drawings, the closing member 500 includes a flat plate portion 501 that can close the connector opening 310 and a rectangular shape that fits loosely into the connector opening 310 on the side facing the connector opening 310 (Y direction in the drawing). A frame-like fitting frame portion 505 and, for example, four locking portions 503a protruding outward on the side surface of the fitting frame portion 505 (the locking portions 503a and 504a in FIG. 5 and the locking portions in FIG. 6) Part 503a and 503b).

  The flat plate portion 501 of the closing member 500 has a size that is slightly larger than that of the connector opening 310, and is approximately the same as the cable so that the cable 420 of the harness 400 with connector can be inserted through the approximate center thereof. A cable insertion hole 502 having the same diameter is formed. The fitting frame portion 505 has an outer shape having a size and shape that is slightly smaller than the connector opening 310, and has an inner space.

  Each of the pair of locking portions 503a and 503b is formed by leaving one side of the base end side (connector opening 310 side) and separating the other side from the fitting frame portion 505 main body by a U-shaped groove. . Thereby, each latching | locking part 503a, 503b can be elastically shifted to the inner side direction along the flat plate part 501 within a fixed range. Further, each of the locking portions 503a and 503b has an outer inclined surface that increases in thickness toward the flat plate portion 501 from each base end side, and locking surfaces 503aa and 503ba that face the flat plate portion 501. . The locking surfaces 503aa and 503ba and the flat plate portion 501 are separated from each other by an amount corresponding to the thickness of the upper lid case 300. Thereby, each latching | locking part 503a, 503b is formed in the hook (key) nail | claw shape which protrudes in the respectively opposite direction (refer the enlarged view shown in the circle | round | yen of FIG. 4).

  In addition, since a pair of latching | locking part 503a, 503b is formed in the opposing side surface of the fitting frame part 505, it will be arrange | positioned mutually apart only by the width | variety of the X direction of the connector opening part 310 in the figure. . In this embodiment, as shown in FIG. 5, for example, pairs of locking portions having such a shape are provided at two locations in the longitudinal direction of the closing member 500.

  The harness 400 with connector is connected to the board-side connector 110 by the following procedure. Here, as shown in FIG. 6, the board-side connector 110 is, for example, a socket-type connector in which a predetermined number of socket terminals 111 are arranged, while the harness-side connector 410 is the socket terminal 111 described above. For example, it is a plug type connector in which pin plug terminals 411 corresponding to the above are arranged.

  As shown in FIG. 6A, the cable 420 of the harness 400 with the connector is inserted into the cable insertion hole 502 formed in the closing member 500, and in this state, the connector 410 is inserted into the connector opening 310 and the board side Connect to connector 110. At this time, the socket terminal 111 of the board-side connector 110 contacts the pin terminal of the harness-side connector 410.

  Further, when the fitting frame portion 505 of the closing member 500 is pressed and inserted into the connector opening 310, the outer inclined surfaces of the locking portions 503a and 503b are elastically shifted inward while abutting against the edge of the opening. Then, in the state where the flat plate portion 501 closes the opening, as shown in FIG. 6B, the locking portions 503a and 503b return to their original positions, and the engagement portions 503a and 503b return to the inner surface (back surface) of the opening periphery. The locking surface (claw portion) of the stop portion is locked and closed in a so-called “fitting-off state”. Here, the “fitting-off state” refers to an engaged state that cannot be released by an external operation once it has been fitted due to the structure of engaging inside the case member.

  As described above, after the cable 420 of the harness 400 with the connector is inserted into the cable insertion hole 502 of the closing member 500 and the connector 410 is connected to the board-side connector 110, the closing member 500 is used to insert the connector opening 310 in a killed state. Block. By providing the closing member 500, the board-side connectors 110, 120, and 130 and the connector openings 310, 320, and 330 that have occurred in the manufacturing process between the main body case 200, the upper lid case 300, and the main control board 100 are provided. It is possible to eliminate the gap between the main control board 100 and the like, and to prevent unauthorized access to the main control board 100 such as a wire entering the inside from the gap. Further, the unauthorized access prevention function can be realized with a simplified board case and connector connection structure.

  The closing member 500 for closing the connector opening (310) according to the present invention may have the shape shown in FIG. When the blocking member 500 of this embodiment closes the flat plate portion 501 in which the cable insertion hole 502 for inserting the cable (420) of the harness with connector (400) and the connector opening (310) are closed, Locking portions 506a, 506b, 507a, and 507b are formed on the surface side of the flat plate portion 501 facing the opening.

  The pair of locking portions 506a and 506b are formed so that the base end portions on the flat plate portion 501 side are spaced apart by a width corresponding to the opening width in one direction (X direction) of the connector opening (310). It can shift elastically in the inner direction. Each of the locking portions 506a and 506b has an outer inclined surface that increases in thickness from the end side toward the flat plate portion 501 and a locking surface 506aa that faces the flat plate portion 501. The locking surface 506aa and the flat plate portion 501 are separated from each other by an amount corresponding to the thickness of the upper lid case 300. Thereby, each latching | locking part 506a, 506b is formed in the claw shape which protrudes on the opposite mutually opposite, respectively.

  In addition, the other pair (507a, 507b) of the other locking portions provided at different positions in the longitudinal direction (Z direction) of the flat plate portion 501 has the same shape as the above-described pair (506a, 506b), And it forms in the flat plate part 501 with the same space | interval.

  According to the blocking member 500 having such a shape, the cable (420) of the harness (400) with the connector is inserted into the cable insertion hole 502 formed in the flat plate portion 501. In this state, the harness-side connector (410) is opened to the connector opening. It is inserted into the part (310) and connected to the board side connector (110). Then, when the locking portions 506a, 506b, 507a, and 507b of the closing member 500 are pressed and inserted into the connector opening (310), the outer inclined surface of each locking portion is elastically biased inward while contacting the edge of the opening. The locking surface (claw portion) of each locking portion is locked to the inner surface (back surface) of the peripheral edge of the connector opening. Thereby, the said connector opening part is obstruct | occluded in a fitting state.

  As described above, according to the connector connection structure of the present embodiment, the connector-attached harness is connected to the board-side connector, and then the connector opening is closed in a closed state by the closing member 500. Therefore, it is possible to eliminate a gap between the board-side connector and the connector opening, which has occurred in manufacturing among the main body case 200, the upper lid case 300, and the main control board 100. Further, since the closing member 500 closes the connector opening (310) in the fitted state, the closing member cannot be opened from the outside. For these reasons, unauthorized access to the main control board 100, such as the entry of a wire into the board case through the gap in the connector opening, can be reliably prevented. Further, such an unauthorized access prevention function can be realized with a simplified 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 of the control board assembly to which the harness with connector is connected and the peripheral part thereof, with the YZ plane shown in FIG. 4 as a cut surface. FIG. 6 is a cross-sectional view of the board-side connector and its peripheral portion, showing the state before and after connecting the harness with connector. FIG. 7 is a perspective view illustrating an appearance shape of a closing member according to another embodiment.

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 ... Socket terminal,
120, 130 ... Board side connector,
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, 320, 330 ... connector opening,
400 ... harness with connector,
410 ... Connector, 411 ... Pin plug terminal,
420 ... cable,
500 ... Occlusion member,
501 ... Flat plate part, 502 ... Cable insertion hole,
503a, 503b ... locking portion, 503aa, 503ba ... locking surface,
504a ... Locking part, 505 ... Fitting frame part,
506a: locking portion, 506aa: locking surface,
506b, 507a, 507b ... locking portion,
800 ... Connection member

Claims (2)

A connector connection structure for connecting a harness-side connector to a board-side connector mounted on a control circuit board for a gaming machine through a connector opening formed in a board case for housing the control circuit board,
A flat plate portion capable of closing the connector opening, and a closing member formed with an insertion hole through which the cable connected to the harness-side connector can be inserted in the flat plate portion,
The connector connecting structure, wherein the closing member is inserted in the insertion hole to close the connector opening in a closed state. In the closing member, a pair of locking portions spaced apart by an opening width in at least one direction of the connector opening is formed on a side of the flat plate portion facing the connector opening,
The pair of locking portions can be elastically shifted inward along the flat plate portion, and have a claw shape protruding outwardly opposite to each other,
2. The connector opening is closed in a fitted and killed state by pressing each locking portion into the connector opening and locking the claw portion with an inner surface of the peripheral edge of the connector opening. The connector connection structure described.

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