JP4878115B2 - Control board assembly for gaming machines - Google Patents

Description

  The present invention relates to a control board assembly that is provided in a gaming machine such as a slot machine and accommodates a control board for controlling the operation of the gaming machine.

  Conventionally, a slot machine is known as a revolving game machine. In general, a slot machine operates a start lever to rotate a plurality of reels on which symbols are drawn, and stops a corresponding reel by pressing a stop button. In addition, the slot machine is provided with a lottery means for drawing a winning combination, and draws a winning combination with a predetermined probability in each game. When a winning combination is won and a symbol related to the winning combination is displayed on a predetermined active line by the player's attention, the winning is confirmed and a medal is paid out.

  In the slot machine, a control circuit board called a main control board is provided in the housing. The main control board performs overall control of the reel unit including a reel and a stepping motor that rotationally drives the reel, and an internal device such as a hopper device that pays out medals, and performs the above-described lottery. It plays a central role in controlling gaming operations. For this reason, the main control board is sealed in a crimped state and housed in a board case having a sealing mechanism in which a trace remains when opened, thereby replacing, for example, a counterfeit ROM with a changed lottery probability It is hard to receive illegal acts such as. Further, in order to enable visual inspection to find an unauthorized modification of the main control board without opening the board case, the board case for accommodating the main control board is formed of a transparent plastic (for example, Patent Document 1). reference).

  Visual inspection of the main control board to check whether the main control board of the gaming machine operating in the gaming store has been illegally modified or whether its operation is legally compatible, And the operation inspection is performed at any time by removing from the substrate case. Then, the inspection history such as the inspection date and time, the name of the person in charge of the inspection, and the symbol of the caulking mechanism that reseals the substrate case is recorded on the inspection sticker attached to the surface of the substrate case.

JP 2004-209238 A

  However, since the inspection seal for recording the above-described inspection history is attached to the surface of the substrate case, the inspection seal becomes an obstacle when performing a visual inspection of the main control board through the substrate case. It was not possible to visually inspect the state of the substrate surface located at 1.

  The present invention has been made in view of such a conventional problem, and provides a control board assembly for a gaming machine that can easily and sufficiently perform a visual inspection of a control board accommodated in a board case having an inspection seal. It is intended to provide.

To solve the problems described above, a first aspect of the present invention, and yield capacity be interposed between the desired pair of transparent case cover and the case body which faces the control board equipped with electronic components A control board assembly for a gaming machine, wherein a pedestal portion including a side wall rising from a surface of the case lid and a front surface having a peripheral edge connected to each upper end of the side wall is provided on the surface of the case lid. are integrally formed with, the said front surface of said base portion, the inspection seal for recording the inspection history of the control board is attached, the side wall of the base portion is a transparent, rear side of the inspection seal The surface state of the control board located at a position is formed so as to be visible from the entire periphery of the side wall of the pedestal portion.

According to the control board assembly for a gaming machine of the present invention, a pedestal portion including a side wall rising from the surface of the case lid, and a front surface to which a peripheral edge is connected to each upper end of the side wall and an inspection seal is attached. and thereby formed to case lid integrally, the side wall of the base portion, a transparent, the surface state of the control board located on the back side of the inspection seal visible from the entire periphery of the side wall of the base portion forming Therefore, the surface state of the control board located on the back side of the inspection seal can be seen through the side wall of the pedestal portion. Therefore, the surface state over the entire area of the control board can be easily and sufficiently visually inspected without being disturbed by the inspection seal.

  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 panel 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. Cylindrical reels R1, R2, and R3 provided in the housing are viewed through the display window FW. 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. 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 one of the bet buttons BET and the start lever STL is tilted. At this time, the slot machine SM performs winning lottery by internal processing (hereinafter referred to as “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 stop 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 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 shows the internal structure of the slot machine SM with the front door FD opened from the housing MB. In the figure, a control board assembly MBA according to the present invention is mounted on the upper part of the housing MB. The control board assembly MBA accommodates a main control board 100 that controls the overall operation of the slot machine SM. The main control board 100 is formed from a control circuit board formed based on a microcomputer including an MPU, a ROM, a RAM, and the like. The control board assembly MBA will be described later.

  A reel unit RU including reels R1, R2, and R3 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, speakers SPL and SPR are attached to the upper part on the rear surface side of the front door FD so as to face the above-described sound emission sections SAL and SAR for production. Further, although not shown in FIG. 2, the speakers SPL, during SPR, the liquid crystal display unit FPD is mounted, the sub-control board SBA for controlling driving the liquid crystal display unit FPD or the like to the rear surface side of the liquid crystal display unit FPD It is attached. 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. Primarily performs control related to game effects.

  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.

  The slot machine SM configured as described above enters a standby state when a prize is won in the previous game and the payout of medals is completed, or when a loss is confirmed in the previous game. In this standby state, by pressing the bet button BET, a medal is bet on the game from the medal (credit) stored inside, and the game starts.

  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, an internal lottery is selected for the winning combination, 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. When it is detected that all the reels R1, R2, and R3 have stopped, it is determined whether or not the symbol displayed on 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.

  Next, the configuration of the control board assembly MBA that houses the main control board 100 will be described below. 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 that houses the main control board 100 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 facing the back surface of the control board assembly MBA, an L-shaped rib portion 11 erected from the left edge to the lower edge, and a right edge. The support base 12 that is erected and the support protrusion 13 that protrudes from the support base 12 are mainly formed integrally. 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. On the flat plate portion 10 adjacent to the inside of the support base portion 12, for example, four sealing cylinder portions 15 that constitute a sealing mechanism described later are formed. 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.

  The control board assembly MBA includes a main control board 100, a case base 200, and a case cover 300, and a connection member 500 as a connection medium of a sealing mechanism that joins the case cover 300 and the case base 200 in a crimped state. use. The connecting member 500 is also used in common for the sealing mechanism between the control board assembly MBA main body and the bracket member BR.

  The case base 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 case base 200, there are formed three hinge shaft portions 201 for hinge coupling with the case cover 300 at predetermined intervals. Further, two locking arms 202 having locking holes 202a extending forward and sealing cylinder portions 210 constituting a sealing mechanism for caulking and joining the case cover 300 are formed on the lower side wall at four locations. ing.

The case cover 300 is a substantially rectangular lid that is integrally formed of a transparent plastic, for example, by a manufacturing technique that does not cause a hole during die cutting by slide molding, and the hinge shaft of the case base 200 is formed on the upper side wall. A hinge bearing portion 301 is formed in alignment with the portion 201. Further, the sealing cap part 310 and the control board assembly MBA are aligned with the sealing cylinder part 15 of the bracket member BR in a state where the sealing cap part 310 and the control board assembly MBA are attached to the bracket member BR. A sealing cap part 320 is formed.

  In addition, a rectangular frame portion 302 extending around the sealing cap portion 320 is formed on the right side portion of the case cover 300, and engagement convex portions 303 are formed on the left side wall of the case cover 300 at two upper and lower portions.

The case base 200 and the case cover 300 are attached to each other so that the hinge shaft portion 201 and the hinge bearing portion 301 are fitted to each other so that the case base 200 and the case cover 300 can be opened and closed. When closing the case cover 300 housing the main control board 100, formed in the manner, the lower end of the locking hole 202a and the case cover 300 of the locking arm 202 of the case body 200 side shown in FIG. 4 the locking The protrusion 304 is engaged. At this time, the case base 200 and the case cover 300 are fitted with the end portions of the respective peripheral walls in close contact with each other, thereby preventing an illegal act on the main control board 100 using a wire from the outside.

  If the case cover 300 is simply closed to the case base 200, the locking arm 202 is merely engaged with the locking projection 304 by its elastic deformation force, and the case cover 300 can be easily released by releasing these engagement states. Can be opened. Therefore, when the case cover 300 is closed, the connection member 500 is inserted into and engaged with any one of the sealing mechanisms constituted by the sealing cylinder portion 210 of the case base 200 and the sealing cap portion 310 of the case cover 300. Thus, these case members are sealed in a crimped state. As a result, it is difficult to open the case cover 300, and the sealing mechanism coupled by crimping cannot be released unless the sealing cap portion 310 is separated from the case cover 300 main body, so that traces such as opening are left. It becomes like this.

  Further, as shown in FIGS. 3 and 4, a transparent and rectangular base 350 is integrally formed on the surface of the case cover 300, and an inspection seal 450 is bonded to the front surface thereof. Thus, the surface area of the case cover 300 to which the inspection seal 450 is bonded is extended from the surface of the case cover 300 to the front.

  Note that each time the main control board 100 is removed from the case and the operation check is performed, the inspection seal 450 indicates the date when the inspection person performed the inspection, the name of the inspection person, and the location of the caulking mechanism where the case was resealed. This is for entering the inspection history such as a symbol to indicate.

  The control board assembly MBA assembled to accommodate the main control board 100 has the rectangular frame portion 302 while engaging the engaging convex portion 303 formed on the left side wall of the case cover 300 with the engaging concave portion 11a of the bracket member BR. By inserting the supporting projection 13 of the bracket member BR into the inner space of the bracket, the locking arm 14 on the bracket member BR side is elastically deformed, and the locking projection 14a at the tip and the corner of the rectangular frame 302 are engaged. To do. As a result, the control board assembly MBA is stably supported with respect to the bracket member BR. At this time, by inserting and engaging the connection member 500 into any of the sealing mechanisms similar to those described above configured from the sealing cylinder portion 15 of the bracket member BR and the sealing cap portion 320 of the case cover 300, The control board assembly MBA main body is sealed with respect to 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, details of the above-described sealing mechanism will be described with reference to FIGS. The slot machine SM according to the present embodiment includes a sealing mechanism that seals the case cover 300 with respect to the case base 200 and a sealing mechanism that seals the case cover 300 with respect to the bracket member BR. However, since both mechanisms have basically the same structure, the former will be described as an example here. 5 is an enlarged partial sectional view showing a sealing mechanism between the case cover 300 and the case base 200, FIG. 6 is a sectional view of the sealing cylinder portion 210 along the line VI-VI in FIG. 5, and FIG. FIG. 8 is a perspective view showing an external structure of the connecting member 500 used when the sealing mechanism is caulked and joined, along with a VII-VII line in FIG. is there.

  As shown in FIGS. 5 and 6, the sealing cylinder portion 210 is a bottomed cylindrical portion that is formed integrally with the case base 200 and opens toward the case cover 300, and is connected at two locations. The case base 200 is connected to the main body side via the portion 212. Engagement recesses 213 that face each other are formed on the inner wall of the sealing cylinder part 210, and rotation regulation protrusions 214 that face each other and extend short toward the radial center are formed at the bottom of the inner wall of the sealing cylinder part 210. . Further, a fitting inner edge portion 215 that fits with the opening periphery of the sealing cap portion 310 is formed on the opening periphery of the sealing cylinder portion 210.

  As shown in FIG. 5 and FIG. 7, the sealing cap portion 310 on the case cover 300 side is a bottomed cylindrical portion that opens toward the case base 200 side, and the case cover via the connecting portion 312. It is connected to the 300 main body. Engaging recesses 313 facing each other are formed on the inner wall of the sealing cap part 310, and rotation restricting protrusions 314 that face each other and extend short in the radial center direction are formed at the bottom of the inner wall of the sealing cap part 310. . Further, a fitting outer edge portion 315 that fits with the opening periphery of the sealing cylinder portion 210 is formed on the opening periphery of the sealing cap portion 310.

  The structure of the connection member 500 will be described with reference to FIG. The connecting member 500 has a shape of a substantially hollow cylindrical body penetrating in the axial direction. The rotation restricting groove 501 is a pair of notch grooves facing each other in the radial direction on one end side in the axial direction, and the other end is also the same. A pair of rotation restricting grooves 502 facing in the radial direction on the side is formed. The rotation restricting grooves 501 and 502 are in a positional relationship in which the phase is shifted by about 90 degrees around the rotation axis.

  Further, a pair of engaging protrusions 503 that are opposed to each other in the radial direction in the vicinity of one end side of the connection member 500 and a pair of engaging protrusions 504 are also formed in the vicinity of the other end side, and the respective engaging protrusions 503 and 504 are formed. Is in a positional relationship about 90 degrees out of phase with respect to the rotation axis. Further, the engagement protrusions 503 and 504 are separated from the main body by surrounding U-shaped grooves 503b and 504b, leaving the base portions 503a and 504a, and swinging in the radial direction by elastic deformation with the base portions 503a and 504a as fixed ends. It is possible. Furthermore, the engagement protrusions 503 and 504 have a triangular cross-section that gradually protrudes outward from each end side of the connection member 500 toward the center, and corners in the counterclockwise direction when viewed from the end side of the connection member 500. Tapered surfaces 503c and 504c are cut out obliquely.

  The sealing operation of the control board assembly MBA by the sealing mechanism having such a configuration will be described. When sealing the case cover 300 to the case base 200 in a caulking connection state, as shown in FIG. 5, first, one end side of the connection member 500 is inserted into the hollow portion of the sealing cylinder portion 210 of the case base 200. . At this time, when the engagement protrusion 504 on one end side is aligned and inserted so as to enter the engagement recess 213 of the sealing cylinder portion 210, the engagement protrusion 504 is elastically deformed inward and the original at the position of the engagement recess 213. The rotation restricting protrusion 214 of the sealing cylinder part 210 enters the rotation restricting groove 502 of the connecting member 500. As a result, the connection member 500 is engaged and held by the sealing cylinder portion 210 of the case base 200.

  When the case cover 300 is closed to the case base 200 in this state, the other end side of the connection member 500 is inserted into the hollow portion of the sealing cap portion 310, and the engagement protrusion 503 is elastically deformed inward to engage with the engagement recess 313. Engage. At this time, the rotation restricting protrusion 314 of the sealing cap part 310 enters the rotation restricting groove 501 of the connecting member 500, and the sealing cap part 310 and the sealing cylinder part 210 are caulked and joined using the connecting member 500 as an engaging medium. The Thus, the case cover 300 is sealed with respect to the case base 200 in a crimped state by inserting and closing the connecting member 500 into the sealing cylinder portion 210 and the sealing cap portion 310. This makes it difficult to open the case cover 300 from the case base 300, prevents unauthorized modification to the main control board 100, and the case cover 300 cannot be opened unless the sealing cap portion 310 is separated from the case cover 300 main body. The trace of the opening of the case cover 300 can be left by the cut connecting portion 312. Note that the connecting member 500 may be inserted into the sealing cap portion 310 of the case cover 300 first and then closed and sealed.

Next, the inspection seal 450 and the pedestal portion 350 to which the inspection seal 450 is attached will be described. Here, FIG. 9 is a diagram showing the external structure of the control board assembly MBA in the upper part of the housing MB in a state where the front door FD is opened, and FIG. 10 is an enlarged view of the structure of the pedestal 350 to which the inspection seal 450 is attached. FIG.

  With reference to these drawings, a pedestal 350 integrally formed on the surface of the case cover 300 is transparent and has a rectangular shape (a rectangular parallelepiped), and is formed on its front surface by, for example, chemically synthesized paper. A rectangular inspection seal 450 is attached by bonding or the like. Here, as shown in FIG. 10, the length ω of the pedestal 350 extending from the surface of the case cover 300 is longer than at least 1/2 of the minimum outer diameter W of the inspection seal 450. It is desirable to set dimensions. As a result, when tilted at least 45 degrees or more from the line of sight Ea facing (orthogonal to) the surface of the case cover 300, the main control board 100 is visually observed along the lines of sight Eb and Ec that are seen through the side wall of the pedestal 350. The surface portion of the substrate located on the back side of the inspection seal 450 can also be visually observed without being obstructed by the inspection seal 450.

  Next, an operation of opening and resealing the control board assembly MBA in order to check the operation of the main control board 100 will be described. FIG. 11A illustrates the sealing state of the control board assembly MBA when the slot machine SM is shipped from the factory, and FIG. 11B illustrates the control board after the first opening inspection (on-site inspection) is performed. It is a figure which illustrates the sealing state of an assembly.

  Referring to FIG. 11A, the control board assembly MBA at the time of shipment from the factory arranges the main control board 100 that has passed the final inspection in the case base 200, and the sealing cap portions at both ends of the lower sealing mechanism. 310, 310 and the corresponding sealing cylinder portion 210 on the case base 200 side are inserted into the connection member 500, and the case base 200 and the case cover 300 are sealed in a crimped state by the sealing mechanisms CL1, CL2. . Further, the connecting member 500 is inserted into the sealing cap part 320 positioned at the bottom of the right sealing mechanism and the corresponding sealing cylinder part 15 on the bracket member BR side, and is controlled by the sealing mechanism BL1. The substrate assembly MBA is attached in a caulking state in the housing MB. Note that the inspection seal 450 at the time of factory shipment includes a date and time of shipment inspection of the main control board 100, a person in charge of inspection in a column with, for example, alphabetical characters indicating the sealing mechanisms CL1, CL2, and BL1 in a sealed state. The name of the person is entered and sealed.

  After the factory shipment, when the first on-site inspection is performed by removing the main control board 100 from the case member, the sealing state of the sealing mechanisms CL1, CL2, and BL1 is released and the case cover 300 is opened. That is, by cutting the connecting portions 312 and 322 of the sealing mechanisms CL1, CL2, and BL1 using a tool such as a nipper, the sealing cap portions 310, 310, and 320 are separated from the main body portion of the case cover 300 and the sealed state is maintained. Canceled. As a result, the case cover 300 can be opened from the case base 200, and the main control board 100 can be taken out of the case for inspection.

  The sealing mechanism once the sealing cap part is separated does not have the function, but the inserted connecting member 500 can be taken out and used for another sealing mechanism. As an example of this, a case where the connecting member 500 is taken out from the sealing mechanism BL1 opened in the first on-site inspection will be described with reference to FIG. 12A is a cross-sectional view of the case cover 300 in which the sealing cap part 320 constituting the sealing mechanism BL1 is cut, and FIG. 12B is a sealing part constituting the sealing mechanism BL1 in the bracket member BR. It is the cross-sectional view which cut | disconnected the cylinder part 15. FIG.

  First, as described above, the connecting portion 322 of the sealing cap portion 320 is cut and separated from the case cover 300 main body. Thereafter, the sealing cap part 320 is picked with a finger and rotated counterclockwise (in the direction of the arrow P1). At this time, for example, as shown in FIG. 12A, the taper surface 503 c of the engagement protrusion 503 of the connection member 500 is in contact with the side wall surface of the engagement recess 323 of the sealing cap portion 320 while moving in the radial center direction (arrow). It is elastically deformed in the Q1 direction) and the engagement state between the engagement protrusion 503 and the engagement recess 323 is released. When the sealing cap part 320 is further rotated counterclockwise in this state, the rotation restricting protrusion (not shown) formed on the bottom of the sealing cap part 320 and the side face of the rotation restricting groove 501 of the connecting member 500 are brought into contact with each other. Rotate together in contact. At this time, as shown in FIG. 12B, the tapered surface 504c of the engagement protrusion 504 is elastic in the radial center direction (arrow Q2 direction) while contacting the side wall surface of the engagement recess 153 of the sealing cylinder portion 15. In order to deform | transform, the engagement state of the engagement protrusion 504 and the engagement recessed part 153 is cancelled | released. If the sealing cap part 320 is pulled forward (in the axial direction) in this state, the connecting member 500 can be removed together with the sealing cap part 320.

  Note that the engagement strength (engagement between the engagement projection 503 and the engagement recess 323) on the sealing cap portion 320 side is the engagement strength (engagement between the engagement projection 504 and the engagement recess 153) on the engagement cylinder portion 15 side. If it is greater than (engagement), when the sealing cap part 320 is rotated, the engagement on the engaging cylinder part 15 side is first released. In either case, the sealing cap part 320 is rotated counterclockwise. Further engagement is released by rotating further.

  The connecting member 500 thus taken out from the sealing mechanism BL1 is used for the adjacent sealing mechanism BL2, and the inspected main control board 100 is sealed in the case member, and the control board assembly MBA is bracketed. It attaches in the crimping | crimped state in housing | casing MB via member BR. At this time, the person in charge of the inspection enters the inspection history such as the date and time of the inspection, the name, etc. in the column of the inspection seal 450 to which the alphabet character symbol indicating the resealed sealing mechanism BL2 is attached.

  According to the control board assembly MBA of this embodiment, the transparent and rectangular base 350 is formed on the surface of the case cover 300, and the inspection seal 450 is attached to the front surface thereof. If the side wall of the pedestal 350 is seen through, the portion of the main control board 100 located on the back side of the inspection seal 450 can also be seen, so that the entire main control board 100 can be seen through the board case without being obstructed by the inspection seal 450. Can be visually inspected.

  The control board assembly according to the present invention can be applied not only to a control board of a slot machine but also to a control board of other gaming machines that operate based on a microcomputer such as a pachinko machine.

FIG. 1 is a front view showing the 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 the control board assembly provided inside the slot machine housing. FIG. 4 is a perspective view showing a state in which the control board assembly is provided inside the slot machine housing. FIG. 5 is an enlarged partial sectional view showing the structure of the sealing mechanism of the control board assembly. FIG. 6 is a cross-sectional view of the sealing cylinder portion of the sealing mechanism taken along line VI-VI in FIG. 7 is a cross-sectional view of the sealing cap portion of the sealing mechanism taken along line VII-VII in FIG. FIG. 8 is a perspective view showing an external structure of a connection member used for the sealing mechanism. FIG. 9 is a view showing the external structure of the control board assembly inside the housing with the front door opened. FIG. 10 is an enlarged perspective view showing the structure of the pedestal portion of the case cover to which the inspection seal is attached. FIG. 11A is a view illustrating a sealed state of the control board assembly when the slot machine is shipped from the factory. FIG. 11B is a diagram illustrating a sealed state of the control board assembly after the first opening inspection is performed. FIG. 12A is a cross-sectional view of a sealing cap portion constituting a sealing mechanism of the control board assembly. FIG. 12B is a cross-sectional view of a sealing cylinder portion that constitutes a sealing mechanism in the bracket member.

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,
STL ... Start lever,
STP1, STP2, STP3 ... Stop button,
MEX ... medal payout exit,
MB: Housing,
MBA: Control board assembly,
HPU ... Hopper device, SBA ... Sub control board,
BR: Bracket member,
CL1, CL2 ... sealing mechanism,
BL1-BL4 ... sealing mechanism,
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 part,
100 ... main control board,
200: Case base,
201 ... Hinge shaft, 202 ... Locking arm, 202a ... Locking hole,
210 ... Sealing cylinder part, 212 ... Connection part, 213 ... Engagement recessed part,
214 ... rotation restricting projection, 215 ... fitting inner edge,
300 ... Case cover,
301 ... Hinge bearing part 302 ... Rectangular frame part 303 ... Engagement convex part,
304 ... locking projection, 310 ... sealing cap part, 312 ... coupling part,
313: Engagement recess, 314: Rotation restricting protrusion 315: Fitting outer edge,
320 ... sealing cap part, 322 ... coupling part, 323 ... engagement recess,
350 ... pedestal, 450 ... inspection seal,
500 ... connecting member,
501, 502 ... rotation restricting groove,
503, 504 ... engaging protrusions,
503a, 504a ... base, 503b, 504b ... groove,
503c, 504c ... taper surface

Claims (1)

A gaming machine control board assembly that yield capacity be interposed between the desired pair of transparent case cover and the case body which faces the control board equipped with electronic components,
On the surface of the case lid, a pedestal portion including a side wall rising from the surface of the case lid and a front surface with a peripheral edge connected to each upper end of the side wall is formed integrally with the case lid,
An inspection seal for recording an inspection history of the control board is attached to the front surface of the pedestal portion ,
A side wall of the pedestal portion is transparent, and a surface state of the control board located on the back side of the inspection seal is formed so as to be visible from the entire periphery of the side wall of the pedestal portion. Control board assembly.

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