JP5240712B2 - Board case unauthorized opening detection structure - Google Patents

Description

  The present invention relates to a control board for detecting that a board case containing a control board for controlling a gaming machine is illegally opened, a board case unauthorized opening detection structure, and a gaming machine.

  A gaming machine such as a pachinko machine or a slot machine is provided with a control board for controlling the operation of the gaming machine. The control board is composed of a CPU as arithmetic processing means, a ROM (Read Only Memory) as a storage element, a RAM (Random Access Memory), etc. Control the operation of the gaming machine, such as image control of the display device, lottery for special games.

  In recent years, there has been a problem of an unauthorized act of performing an unauthorized operation on the ROM of the control board. For example, the ROM of the control board is replaced with an unauthorized ROM and the gaming machine is illegally controlled to pull out a prize ball. Has been done. In order to prevent such illegal acts, the control board is accommodated in a board case, and when the case is opened, a trace is left in the board case to detect that the case has been opened. An opening detection means is provided.

  However, even if an opening detection means is provided and a trace is left in the substrate case when the substrate is opened, it is impossible to detect whether the substrate case has been opened or not unless the substrate case is visually confirmed. Therefore, there is a possibility that it cannot be detected at an early stage that it has been illegally opened.

  Patent Document 1 describes a substrate case made in view of such a problem. The board case includes a caulking case and a ROM cover that covers the ROM and the control board in a caulking state with respect to the caulking case, and is configured so that the ROM and the control means cannot be taken out unless the ROM cover is destroyed. Yes. The crimping state of the crimping case and the ROM cover is realized by fitting the fitting protrusions connected to both ends of the ROM cover via connecting members and the fitting holes formed at both ends of the crimping case. In the substrate case configured as described above, the connecting member is cut when the ROM cover is opened. The connecting member is formed of a conductive member and is energized. When the connecting member is cut, the cutting state is electrically detected to detect that the substrate case is opened.

JP 2006-34671 A

  However, when the connecting member is disconnected in a state where the power of the gaming machine is not turned on, it cannot be detected that the connecting member is disconnected. Furthermore, in this power-off state, the connection member is returned to the original state and the power-on state is restored, so that it may not be possible to detect that the substrate case has been opened improperly when the power is turned on.

  The present invention has been made in view of the above circumstances, and more reliably detects that a board case has been illegally opened in a board case containing a control board for controlling a gaming machine. An example of the present invention is to provide a structure for detecting the unauthorized opening of a control board and a substrate case.

  In order to solve the above problems, a control board as an exemplary aspect of the present invention is housed in a board case in which a first housing member and a second housing member are engaged, and controls to control a gaming machine It is a board | substrate, The fixing | fixed part fixed to a 1st accommodating member, The latching | locking part latched by the 2nd accommodating member by being accommodated in a board | substrate case, Between a fixing | fixed part and a latching | locking part The fixed portion is fixed to the first storage member, and the locking portion is locked to the second storage member, whereby the first storage member and the second storage member are The movement of the 1st accommodating member and the 2nd accommodating member to the direction which cancels | releases engagement is controlled, and a weak part is destroyed by the external force of the direction which cancels | releases engagement of a 1st accommodating member and a 2nd accommodating member. It is formed so that.

  The fixing portion of the control board is fixed to the first housing member, and the control board is housed inside the board case in which the first housing member and the second housing member are engaged. The latching portion of the control board is latched to the second housing member by being housed inside the board case. While the fixing portion is fixed to the first housing member and the locking portion is locked to the second housing member, the engagement between the first housing member and the second housing member is released. The movement of the first housing member and the second housing member is restricted.

  When an external force is applied to the method for releasing the engagement between the first housing member and the second housing member in a state where the control board is housed inside the substrate case, the control board is moved to the first housing member side via the fixing portion. While being pulled, it is pulled to the second accommodating member side through the locking portion. That is, a force pulled in different directions via the fixing portion and the locking portion acts on the control board. A fragile portion is formed between the fixed portion and the locking portion, and a pulling force acts in a different direction on the control board across the fragile portion.

  The fragile portion is configured to be broken by an external force in a direction to release the engagement between the first storage member and the second storage member, and forms a part of the control board by the external force to release the engagement. The part is destroyed. Because part of the control board will be destroyed, the control function of some or all of the control board will not be performed when the control board is attached to the gaming machine, ensuring that the board case has been opened illegally. Can be detected. Furthermore, it is effective to stop illegal games by destroying the vulnerable part of the control board or to notify that it has been illegally released. Can be prevented.

  The control board is a control board for performing various controls of gaming machines such as pachinko gaming machines and slot machines. For example, a main control board that controls a game such as a special game lottery, an image control board that controls an image presentation in an image display device that displays a rendering image and a lottery result of a special game, and payout of game media according to a winning mode The payout control board for controlling the game and the launch control board for controlling the launch of the game medium to the game area can be exemplified.

  The fixing portion is a portion fixed to the first housing member constituting the substrate case, and may be configured to be directly fixed to the first housing member, or indirectly through the component. You may comprise so that it may be fixed. As a specific configuration of the fixing portion, for example, a hole formed in the control board, and a configuration in which a protrusion formed on the first storage member is inserted and fixed to the first storage member, and An example of the configuration is a hole formed in the control board, which is fixed to the first housing member by being fastened by the fastening member together with the hole formed in the first housing member.

  The latching portion is a portion that is latched to the second housing member constituting the substrate case by being housed in the substrate case, and may be configured to be latched directly to the second housing member. You may comprise so that it may latch indirectly to a 2nd accommodating member via etc. A specific configuration of the locking portion is, for example, a protrusion protruding from the control board. When the control board is received in the board case, the claw portion of the second receiving member is hooked on the protrusion. A structure for engaging with the second housing member, and a hole formed in the control board, and the control board is housed in the board case so that it is fitted together with the hole formed in the second housing member. A configuration in which the protrusion is inserted and locked to the second housing member can be exemplified.

  The fragile portion is a portion that is disposed between the fixing portion and the locking portion of the control board and is broken by an external force in a direction in which the engagement between the first housing member and the second housing member is released. The fragile portion is configured to have a lower strength than other portions of the control board. By applying an external force in a direction to release the engagement between the first housing member and the second housing member, the weakened portion having a lower strength than other portions of the control board is destroyed. When the weak part which comprises a part of control board destroys, all or a part of game control by this control board stops functioning. Specific examples of the configuration of the fragile portion include a configuration in which the thickness is formed thin, and a configuration in which perforations are formed by a large number of through holes.

  Further, it is desirable that the control board is configured so that the control function of the gaming machine is not exhibited when the fragile portion is destroyed. With this control board attached to the gaming machine, when the board case is illegally opened, the control function of the game can be stopped immediately, and illegal continuation of illegal games such as payout of illegal prize balls is effective. Can be prevented. In addition, a gaming machine in which the board case is illegally opened has a game control function stopped, which is different from other gaming machines. Therefore, even if there is no notification means for notifying that the board case has been opened illegally, it is possible to notify that the board case has been opened illegally by viewing the gaming machine. .

  Moreover, it is desirable that the weak part is a thin part formed on the front surface or the back surface of the control board. The weak part should just be formed low intensity | strength by differing in the intensity | strength of a material and the intensity | strength of a structure compared with the other part of a control board, and can employ | adopt various structures. For example, by making the fragile part a thin part formed on the front surface or the back surface of the control board, the plate thickness can be made smaller than other parts of the control board, and the strength can be lowered. In addition, since the depth, length, etc. of the thin portion can be adjusted as appropriate, the thin portion is adjusted according to the external force for releasing the engagement, and the substrate case is opened illegally. In addition, it is possible to configure the fragile portion to be surely destroyed. In addition, since the thin portion is formed on the front surface or the back surface, it is not necessary to attach new parts to the control board, and the increase in the number of parts can be suppressed, and it can be easily formed on the conventional control board. Is possible.

  According to another embodiment of the present invention, there is provided an illegal opening detection structure for a substrate case for accommodating a control substrate for controlling a gaming machine by engaging a first accommodation member and a second accommodation member. A tamper-release detection structure in which a first housing member is disposed on one side of the front or back surface of the control board, and a second housing member is disposed on the other side, and the control housed in the board case Since the substrate is fixed to the first housing member and locked to the second housing member, movement in the direction of releasing the engagement between the first housing member and the second housing member is restricted, and the first A fragile portion that is broken by an external force in a direction to release the engagement between the one housing member and the second housing member is provided on the control board.

  The control board accommodated in the substrate case is fixed to the first accommodation member and locked to the second accommodation member, and movement in a direction to release the engagement between the first accommodation member and the second accommodation member is restricted. Has been. The first housing member is disposed on one side of the front or back surface of the control board, and secondly, the housing member is disposed on the other side, and the first housing member and the second housing are sandwiched between the front and back surfaces of the control board. The members are arranged to face each other. When an external force is applied to the substrate case in the direction of releasing the engagement between the first housing member and the second housing member, the control board is pulled toward the first housing member and the force pulled toward the first housing member. Force is applied, and the weak part of the control board is destroyed.

  That is, according to the unauthorized opening detection structure for a substrate case, when an external force is applied to the substrate case in a direction to release the engagement between the first housing member and the second housing member in an attempt to open the substrate case illegally, the external force As a result, the weak part which is a part of the control board is destroyed. Therefore, even if the board case is disengaged, a part of the control board is broken, so that the control function of part or all of the control board is not exhibited, and the board case is illegally opened. Can be detected more reliably.

  Further, the unauthorized opening detection structure of the board case is configured such that the control board can be accommodated in the opening by engaging the board case so that the opening of the first housing member and the opening of the second housing member are aligned. The first housing member or the second housing member is supported so as to be swingable about one side surface of the substrate case, and the first housing member or the second housing member swings to The state in which the storage member and the second storage member are engaged and the state in which the engagement of the first storage member and the second storage member is released may be configured to be feasible.

  According to the thus configured substrate case, the substrate case is accommodated in the opening defined by the first accommodation member and the second accommodation member, and the first accommodation member or the second accommodation centering on one side surface of the substrate case. By swinging the housing member, it is possible to realize a state in which the first housing member and the second housing member are engaged and a state in which the engagement is released by opening and closing the opening. The control board is fixed to the first housing member and locked to the second housing member.

  When an external force in a direction to release the engagement is applied to the substrate case, a force that is pulled toward the first housing member and a force that is pulled toward the second housing member are applied to the control board. The first housing member or the second housing member moves in the rotational direction about the axis, and when the amount of movement is small, a force pulled in a direction substantially perpendicular to the front surface or the back surface acts on the control board. The first housing member is disposed on one side of the front or back surface of the control board, the second housing member is disposed on the other side, and the first housing member and the second housing member are front and back surfaces of the control board. Are placed opposite to each other. Therefore, a shearing force in a direction substantially perpendicular to the surface is applied to the control board, and the fragile portion is destroyed by the shearing force.

  Since an external force in a direction for releasing the engagement is applied to the substrate case, a shearing force in a substantially vertical direction acts on the surface of the control substrate, so that the fragile portion can be broken by a relatively small external force. Even when a relatively small external force is applied so that the substrate case is not opened improperly, it is possible to detect whether the unauthorized opening has not been performed by destroying the control substrate.

  Further, the unauthorized opening detection structure of the board case is configured such that the control board can be accommodated in the opening by engaging the board case so that the opening of the first housing member and the opening of the second housing member are aligned. The first housing member and the second housing member are engaged by sliding the first housing member or the second housing member along one side surface of the substrate case, and the first housing member And the state in which the engagement of the second housing member is released, and the fragile portion is engaged with the fixed portion in a direction from one side surface of the substrate case to the opposite side surface with the opening portion interposed therebetween. You may be comprised so that it may arrange | position between stop parts.

  According to the substrate case configured in this way, the substrate case is accommodated in the opening defined by the first accommodation member and the second accommodation member, and the first accommodation member or the second accommodation member is disposed along one side surface of the substrate case. By sliding the housing member, it is possible to realize a state where the first housing member and the second housing member are engaged and a state where the engagement is released by opening and closing the opening. When an external force is applied in the direction of engagement, a force that is pulled toward the first housing member and a force that is pulled toward the second housing member are applied to the control board. Since the first housing member and the second housing member slide, the force pulled in the opposite direction along the surface acts on the control board, and the fragile portion is destroyed by the shearing force along the surface. Since the direction of the external force for releasing the engagement and the direction of the shearing force acting on the control board are the same direction, the external force for releasing the engagement can be configured to easily act as a shearing force for breaking the fragile portion without attenuating the external force. .

  In addition, the substrate case unauthorized opening detection structure maintains the engagement state between the first housing member and the second housing member, and the trace remaining portion that leaves the trace when the engagement is released is the substrate. It is desirable to be provided in the case.

  An external force is applied to the board case in a direction to release the engagement between the first housing member and the second housing member, thereby detecting that the fragile portion of the control board is destroyed and the board case is illegally opened. it can. However, a part of the control board is broken, and it is necessary to replace it with a new control board. In addition, the control board that is partially destroyed cannot be reused because the circuit is cut, and is discarded.

  In order to reduce the number of such control boards to be discarded, it is preferable to provide a trace remaining portion for leaving a trace of disengaged. The trace remaining part holds the engagement state between the first housing member and the second storage member, and the release state of the residual trace part needs to be released to release the engagement state. Accordingly, it is possible to take time and labor for the operation of releasing the engagement of the substrate case, and it is possible to prevent unauthorized opening of the substrate case. Further, due to the presence of the trace remaining portion, the person who opens the substrate case illegally can recognize that the trace remains even when the engagement is released. In other words, by providing the remaining trace portion, it is possible to effectively suppress the illegal act of releasing the engaged state, prevent the substrate case from being opened illegally, and reduce the number of control boards to be discarded.

  A gaming machine as another exemplary aspect of the present invention includes a gaming device body that realizes a game, a gaming machine frame that contains the gaming device body, the control board, and a control board that accommodates and controls the gaming machine body. And a board case for detachably attaching the board to the gaming apparatus body or the gaming machine frame.

  According to this gaming machine, the fragile portion of the control board is destroyed by the external force that releases the engagement of the board case containing the control board, so that at least a part of the game control by the control board can be stopped. By stopping the game or turning off the power based on the stop of the control function, it is possible to effectively prevent illegal prize payout in the illegally opened gaming machine. Further, when a part of the control board is destroyed, it is possible to detect at an early stage that the board case has been opened illegally by notifying with a speaker or the like.

  Note that the gaming device body is a game for a gaming machine. For example, if it is a pachinko gaming machine, it is a gaming board that realizes a game by the flow of gaming media, and if it is a slot machine, it depends on a combination of pictures. The reel which implement | achieves a game can be illustrated. The control board case may be configured to be mounted on the gaming device body or the gaming machine frame, and may be configured to be directly mounted on the gaming device body or the gaming machine frame. A member may be arrange | positioned between game machine frames, and the structure which can be mounted | worn indirectly with respect to a game device body or a game machine frame may be sufficient.

  The gaming machine frame is a frame member or a group of frame members that encloses the gaming apparatus body and surrounds the side and front of the gaming apparatus body. For example, when the gaming machine is a pachinko gaming machine, a housing frame, a machine frame, a front frame, or a combination of these that includes a gaming board as a gaming device body corresponds to the gaming machine frame, and the gaming machine is a slot. In the case of a machine, a cabinet (casing frame and / or front frame) containing a reel (rotating device) as a gaming apparatus body corresponds to the gaming machine frame. Of course, in a gaming machine other than a pachinko gaming machine or a slot machine, a frame member that includes a gaming device body (for example, a gaming board in a coin gaming machine or a game image display device in an arcade machine) that realizes gaming in those gaming machines. Etc. correspond to this gaming machine frame.

  Further objects and other features of the present invention will become apparent from the preferred embodiments described below with reference to the accompanying drawings.

  According to the present invention, since the control board is provided with the fragile portion that is broken by the external force in the direction of releasing the engagement of the board case containing the control board, the control is performed by the external force that releases the engagement of the board case. The weak part of a board | substrate is destroyed and a part or all of the control function by a control board can be stopped. By partially destroying the control board, it is possible to more reliably detect that the board case has been opened illegally. Further, the game can be stopped or the power supply can be turned off based on the destruction of the control board, so that it is possible to effectively prevent illegal payout of the illegally opened gaming machine.

[Embodiment 1]
Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a pachinko machine 2 as a gaming machine according to Embodiment 1 of the present invention. FIG. 2 is a rear view of the pachinko machine shown in FIG. The pachinko machine 2 includes a frame (game machine frame) 3, a game board unit, a front glass (front transparent plate) 10, a launch unit (not shown), and a storage tray 14, and the game board unit includes a game medium. As a result, a game area for realizing a game by flowing down a ball is formed.

  In the pachinko machine 2, when a player operates a launching handle 15 described later, a ball is launched toward the game area 16 by a launch unit, and a game by the flow of the ball is realized. In addition to the pachinko machine 2, the gaming machine can be an arcade machine such as a pachinko slot machine or a coin game machine, and various game machines. In short, a gaming area that realizes a game by the flow of gaming media. Any gaming machine you have is included. In addition, in the pachinko machine, any pachinko machine such as a combination pachinko machine such as an arrangement ball machine or a sparrow ball machine, a so-called digipachi type (one type) or a honey mono type (two types) pachinko machine can be conceptualized. In this embodiment, a so-called one-type pachinko machine that realizes a digipachi game (also referred to as a one-type game or a symbol variation game) will be described as an example. The symbol variation game will be described later.

  The frame 3 of the pachinko machine 2 is for holding a game board unit to be described later, and is configured to surround the periphery and the front of the pachinko machine 2 or in addition to the rear. In addition to the game board unit, various mechanical components such as various electronic boards and paths for game media, which are described later, are arranged on the inner side of the frame 3. Unauthorized access to the inside of the pachinko machine 2 is prevented.

  A frame 4 surrounding the periphery of the pachinko machine 2, a machine frame 9 that is swingably supported by a hinge part (swing support part) 22 inside thereof so as to be openable and closable, and holds a game board unit. The frame body 3 is configured by including a decorative frame 12 that is supported by the hinge portion 22 so as to be able to be opened and closed forward and holds the front glass 10 and a decorative member 32 that decorates the front glass 10. The front glass 10 is a transparent member for allowing the player to visually recognize the game board 6 held inside the frame 3 from the front.

  The storage tray 14 is a tray member disposed on the front surface of the pachinko machine 2 to store the player's ball, and has an upper tray 14a and a lower tray 14b in the present embodiment. The upper plate 14a has a ball discharge button 14c and is disposed below the game board 6, that is, a lower portion of the decorative frame 12, and the lower plate 14b is disposed further below the upper plate 14a.

  The game board unit has a game board 6 in which a center accessory 7 is arranged at substantially the center on the game board surface (front surface) 6a side, and a large number of game nails are also arranged on the game board surface 6a. A symbol display device 7a is disposed at the center of the center accessory 7, and an opening 7d for exposing a display screen (video display surface) 7b of the symbol display device 7a is formed.

  The symbol display device 7a is composed of, for example, a liquid crystal display device, an organic EL display, an LED, etc., and is arranged so that the player can see from the game board surface 6a side, and displays a video on the display screen 7b. It is. On the display screen 7b, for example, a display symbol 7c composed of three-digit numbers or characters is displayed as an image so as to rotate or stop. In addition, for example, an effect image as a story tailoring image by a character or the like is also displayed on the display screen 7b.

  The game board 6 is a game apparatus body for configuring a game area 16 for realizing a game by flowing down a ball (game medium) 23 on the game board surface 6a side, and the player sees the game board surface 6a from the front. It is held by the frame 3 (in this embodiment, the machine frame 9 as a part of the frame 3) so as to be possible. A rail ornament is attached to the game board surface 6a so as to surround the periphery in a substantially circular shape, and the inner peripheral surface of the rail ornament is disposed so as to stand up with respect to the game board surface 6a. A substantially circular region defined by the inner peripheral surface and facing the inner peripheral surface is a game region 16.

  The game nails collide with the sphere 23 flowing down the game area 16 and change the flow direction thereof, and many of them are arranged in the game area. Further, the game area 16 is provided with a normal winning port 28, a central starting port 29, a central large winning port 31, and the like, and a ball 23 flowing down flows into each inflow port or collides with a game nail. By doing so, it is possible to enjoy the downstream game by the ball 23.

  When the ball 23 is launched by a ball launching device (not shown), the ball 23 travels along the inner peripheral surface of the rail decoration and reaches the upper part in the game area 16. Thereafter, the ball 23 moves along a plurality of passing trajectories and flows down the game area 16 while colliding with the game nail. Some will flow into the regular winning opening 28 and trigger a certain number of prize ball payouts, some will pass through the pass gate 33, and some will not flow into any winning opening at the bottom of the game area. It flows into the out port 30 located and is discharged to the outside of the pachinko machine 2 as an out ball.

  When the ball 23 passes through the passage gate 33, lottery is performed by a state change lottery means (not shown) due to the passage of the passage gate 33. When the lottery result is a win, the opening / closing blades of the central starting port 29 Is opened, and a state where the ball is easy to enter is realized. When it flows into the central starting port 29, the display symbol 7c of the symbol display device 7a starts to rotate due to the inflow, and the display symbol 7c is a predetermined symbol (for example, “7, 7, 7”). If the stop display is made, a big hit in the symbol variation game occurs. The central grand prize opening 31 is opened to accept a large amount of winning balls, and a large amount of prize balls are paid out to the storage tray 14.

  On the back side of the game board 6, there is a main control board case 35 that houses a main control board 34 that controls the entire pachinko machine 2, and an image control board (not shown) that controls the image effect of the symbol display device 7a. ), A payout control board case 37 containing a payout control board (not shown) for controlling the payout of prize spheres, and a power supply board case 38 containing a power supply board (not shown). And are arranged. A game is realized by each control board accommodated in each control board case. Furthermore, an external output terminal plate 39 for outputting game information such as the gaming state of the pachinko machine 2 to the outside is provided on the back side of the game board 6.

  Next, the structure of the main control board 34 and the main control board case 35 will be described in detail with reference to FIGS. In the first embodiment, the main control board 34 is described as an example, but the same structure can be adopted for other control boards. In the following description, up, down, front, back, left, and right are directions when the main control board case 35 is viewed from the back side of the game board 6, and the directions are shown in FIG.

  FIG. 3 is a plan view of the main control board case 35, and FIG. 4 is an exploded perspective view of the main control board 34 and the main control board case 35. The main control board case 35 includes a body member 35a as a second housing member that is detachably fixed to the back side of the game board 6, and a lid as a first housing member that is detachably fixed to the body member 35a. And a member 35b. The main control board 34 is accommodated in the main control board case 35 by being fixed to an opening formed on the inner surface side of the lid member 35b and engaging the lid member 35b and the main body member 35a. In this accommodated state, the main control board 34 cannot be contacted from the outside.

  The main control board 34 has electronic devices such as ROM and RAM, and electronic components such as connection connectors. The main control board 34 has a fixing hole 34a as a fixing portion. By inserting a fixing screw 35c into the fixing hole 34a from the rear side of the main control board 34 and screwing the fixing screw 35c and a screw hole (not shown) of the lid member 35b, the main control board 34 is covered with the lid. It is fixed to the member 35b.

  A hinge portion is provided on the left side of the main control board case 35. The hinge portion includes a shaft portion 35d along the left wall surface of the main body member 35a, and an arcuate arcuate claw portion 35e that is engaged with the shaft portion 35d. The shaft portion 35d is formed on the main body member 35a and is arcuate. The claw portion 35e is formed on the lid member 35b. The lid member 35b is supported so as to be swingable with respect to the main body member 35a with the hinge portion as an axis, and the opening portion of the main control board case 35 is opened as the lid member 35b rotates relative to the main body member 35a. An open state and a closed state are realized.

  Further, a locking hole 34b as a locking portion is formed on the right side of the fixing hole 34a disposed at the approximate center in the left-right direction of the main control board 34. A thin portion 34c as a weak portion is formed between the fixing hole 34a and the locking hole 34b of the main control board 34. The fixing hole 34a, the locking hole 34b, and the thin-walled portion 34c constitute an unauthorized opening detection structure. Further, the main body member 35 a is formed with a protruding locking portion 35 f that can be locked in the locking hole 34 b of the main control board 34 accommodated in the main control board case 35. Further, the lid member 35b is formed with a boss 35r as a restricting portion that comes into contact with the main control board 34.

  The protruding locking portion 35f has a larger diameter portion that is larger than the diameter of the locking hole 34b, and has a tapered shape such that the diameter decreases from the large diameter portion toward the distal end side. The protruding locking portion 35f can be inserted into the locking hole 34b from the tapered shape at the tip of the protruding locking portion 35f when the lid member 35b is rotated so that the main control board case 35 changes from the open state to the closed state. Thus, when the main control board case 35 is in a closed state, the large diameter portion is configured to penetrate the locking hole 34b. The large diameter portion of the protruding locking portion 35f is larger in diameter than the locking hole 34b, and the large diameter portion of the protruding locking portion 35f penetrates the locking hole 34b, whereby the main control board 34 is attached to the main body member 35a. The movement of the main control board 34 in the direction away from the main body member 35a is restricted by locking.

  The boss 35r is in contact with the main control board 34 in a state where the main control board 34 is fixed to the lid member 35b, and is configured to suppress the main control board 34 from being bent toward the lid member 35b. Yes. Accordingly, when the protruding locking portion 35f is inserted into the locking hole 34b of the main control board 34, even if the main control board 34 is pressed to the lid member 35b side by the protruding locking portion 35f, the boss 35r remains on the main control board. The main control board 34 is restrained from being bent. By providing such a boss 35r, it is possible to suppress bending of the main control board 34 when the protruding locking portion 35f is inserted into the locking hole 34b, and cracking of the main control board accompanying it.

  The restricting portion only needs to be configured so as to prevent bending of the main control board 34 fixed to the lid member 35b, and is not limited to the boss, and is configured by a rib formed integrally with the lid member 35b. Also good. In the present embodiment, the two bosses 35r are provided for the locking hole 34b. However, the two bosses 35r are appropriately set according to the strength of the main control board 34, the shapes of the locking holes 34b and the protruding locking portions 35f, and the like. It is possible to provide only one piece or to surround the locking hole 34b.

  The main control board 34 is fixed to the lid member 35b through a fixing hole 34a. Therefore, when the main control board 34 is fixed to the main control board case 35 and the main control board case 35 is closed, the main control board 34 is moved away from both the main body member 35a and the lid member 35b. Be regulated.

  The thin portion 34 c is formed on the front and back surfaces of the main control board 34 along the vertical direction of the main control board 34. The thin portion 34 c is a depression that reduces the thickness of the main control board 34, and has a lower strength than other parts of the main control board 34. A fixing hole 34a and a locking hole 34b are disposed across the thin portion 34c, a fixing hole 34a is disposed on the right side of the thin portion 34c, and a locking hole 34b is disposed on the left side of the thin portion. When an external force is applied in a direction in which the main control board case 35 is opened, a forward force drawn to the lid member 35b side through the fixing hole 34a acts on the right side of the thin portion 34c in the main control board 34, A backward force that is pulled toward the main body member 35a via the locking hole 34b acts on the left side of the thin portion 34c. Therefore, a force acts in the opposite direction across the thin portion 34c, and a shearing force in the front-rear direction acts on the thin portion 34c, thereby cutting the thin portion 34c.

  In the present embodiment, the thin portion 34c is formed on the front surface and the back surface of the main control board 34. However, the present invention is not limited to this configuration, and it may be arranged on either the front surface or the back surface of the main control board 34. Good. It can be set as appropriate according to the strength of the main control board 34, the arrangement of the locking holes 34b and the fixing portions 34a, and the like. In addition, it is preferable that the main control board 34 is formed on a surface that is easily destroyed among the front surface and the back surface. In the present embodiment, the surface that is easily destroyed is a surface opposite to the side of the locking projection 35f inserted into the locking hole 34b, and is a surface on the side of the lid member 35b. Since the main control board 34 is pulled toward the lid member 35b while being pressed toward the main body member 35a by the protruding locking portion 35f, the surface on the lid member 35b side is more easily broken than the surface on the main body member 35a side. .

  A sealing portion as a trace remaining portion is formed on the right side portion of the main control board case 35. The sealing portion includes a main body caulking portion 35g formed to protrude from the right side wall surface of the main body member 35a, a lid caulking portion 35k connected to the right side wall surface of the lid member 35b via a connecting member 35h, and a main body caulking portion. 35m and a sealing piece 35m that can be accommodated between the lid crimping portion 35k. The main body caulking portion 35g and the lid caulking portion 35k are disposed so as to protrude laterally from the right wall surface of the main body member 35a. Four main body caulking portions 35g and four lid caulking portions 35k are provided, and a sealing piece 35m is accommodated in each caulking portion.

  The sealing piece 35m is accommodated in each caulking portion in a first state in which the surface on which the characters “LOCK” are printed is positioned forward or in a second state in which the surface is positioned rearward. On the side wall surface of the sealing piece 35m, a sealing claw portion 35n is formed to protrude. An inner wall hole 35p into which the sealing claw portion 35n of the sealing piece 35m in the first state can be inserted is formed on the inner wall surface of each caulking portion.

  When the locking claw portion 35n is disposed in the main body caulking portion 35g in the first state and the substrate case is closed, the sealing piece 35m is fitted to the main body caulking portion 35g and the lid caulking portion 35k. In this state, the sealing claw portion 35n of the sealing piece 35m is fitted in the inner wall hole 35p of the main body caulking portion 35g and the inner wall hole 35p of the lid caulking portion 35k. The thickness of the sealing claw portion 35n is formed such that the front end side in the insertion direction with respect to each crimping portion is small and the rear end side is large, and the rear end of the sealing claw portion 35n is stepped from the side wall surface of the sealing piece 35m. Is formed. Therefore, when the sealing piece 35m in the first state is accommodated in the main body caulking part 35g and the lid caulking part 35k, the sealing claw part 35n is fitted into the inner wall hole 35p, and the closed state of the main control board case 35 is maintained. It will be in the sealing state.

  On the other hand, when the sealing piece 35m is disposed in the main body caulking part 35g in the second state and the substrate case is closed, the sealing claw part 35n and the inner wall hole are different from the first state in the position of the sealing claw part 35n. 35p does not fit, and the closed state of the substrate case is not maintained.

  Therefore, when the main control board case 35 is sealed in the closed state, one of the sealing pieces 35m is placed in each crimping portion as the first state, and the other sealing piece 35m is placed in the second state as each crimping portion. Place the board case in the closed state. As a result, the main control board case 35 is fitted with the sealing piece 35m in the first state and the inner wall hole 35p to be in a sealed state.

  It is difficult to release the sealed state by sealing the main control board case 35 with such a sealing portion. In order to open the main control board case 35, the sealing piece in the first state is used. It is necessary to cut | disconnect the connection member 35h connected with the lid crimping part 35k which accommodated 35m, and to cut | disconnect this lid crimping part 35k from the lid member 35b. Therefore, after opening the main control board case 35, it is possible to detect that the main control board case 35 has been opened illegally by leaving a trace of cutting the connecting member 35h.

  However, the trace of cutting the connecting member 35h cannot be detected unless the main control board case 35 is visually recognized, and there is a possibility that it cannot be detected early that the main control board case 35 has been illegally opened. As a countermeasure, the main control board case 35 according to the first embodiment is provided with an unauthorized opening detection structure together with the sealing portion.

  Next, the unauthorized opening detection structure of the main control board case 35 will be described in detail along with a method for housing the main control board 34 using the main control board case 35 and a method for releasing it. 5, 6, and 8 are cross-sectional views of the main control board case 35 that houses the main control board 34, and all show the AA arrow view in FIG. 3. FIG. 7 is a partially enlarged view of a portion B shown in FIG.

  When the main control board 34 is accommodated in the main control board case 35, the main control board 34 is fixed to the lid member 35b by the fixing screw 35c. And after arrange | positioning the sealing piece 35m in the main body crimping | crimp part 35g so that it may be in a 1st state, the cover member 35b is rotated and moved to the direction which makes the main control board case 35 a closed state. FIG. 5 shows a state where the lid member 35b is rotationally moved.

  Furthermore, the main control board case 35 is closed by rotating and moving the lid member 35b, so that the main body caulking portion 35g of the main body member 35a and the lid caulking portion 35k of the lid member 35b are fitted to the sealing piece 35m. The main control board case 35 is in a sealed state. FIG. 6 shows the main control board case 35 in a sealed state. In this state, the protruding locking portion 35 f of the main body member 35 a passes through the locking hole 34 b of the main control board 34. Therefore, the main control board 34 is fixed to the lid member 35b via the fixing hole 34a, is locked to the main body member 35a via the locking hole 34b, and is separated from the main body member 35a and the lid member 35b. Directional movement is restricted.

  The main control board case 35 sealed in this way is kept in a sealed state by the sealing portion, and the connecting member 35h must be cut to release this sealed state. Therefore, it takes time and effort for the opening operation, and even after opening, the trace remains, so that unauthorized opening can be suppressed. Nevertheless, when the connecting member 35h that connects the lid member 35b and the lid caulking portion 35k is cut, the lid member 35b is movable in a direction to open the main control board case.

  FIG. 8 shows the opened state of the main control board case 35 whose sealing has been released. When an external force is applied to move the lid member in the direction to open the main control board case 35, a forward force is applied to the right side of the thin portion 34c through the fixing hole 34a toward the lid member 35b, and the thin portion 34c is applied. On the left side, a backward force is applied to the main body member 35a side through the locking hole 34b. Accordingly, a force acts in the opposite direction across the thin portion 34c, and a shearing force in the front-rear direction acts on the thin portion 34c to cut the thin portion 34c.

  As described above, when the connecting member 35h that connects the lid member 35b and the lid caulking portion 35k is cut to open the main control board case 35, the main control board 34 housed in the case is destroyed, and the main control board 34 is destroyed. The control function of a part or all of the game 34 is not exhibited, and it is possible to more reliably detect that the main control board case 35 is illegally opened. Further, by stopping the game by destroying the thin portion 34c of the main control board 34, for example, it is possible to effectively prevent the continuation of illegal games such as illegal payout of prize balls. .

  In the first embodiment, the thin portion 35c is provided on the sealing portion side from the approximate center in the left-right direction of the main control board case 35. More preferably, the main control board case 35 has an opening / closing operation axis. It is desirable to provide on the shaft portion 35d side. By providing the thin portion 35c on the shaft portion 35d side, the force applied to the thin portion 35c can be increased, and the thin portion 35c can be easily broken.

[Embodiment 2]
The structure of the board case provided with the unauthorized opening detection structure according to the present invention is not limited to the main control board case 35 according to the first embodiment, and a modification can be conceptualized. FIG. 9 is an exploded perspective view of the substrate case 41 according to the second embodiment. The substrate case according to Embodiment 2 is a substrate case that can realize an open state and a closed state by slidingly moving the first accommodation member and the second accommodation member.

  The substrate case 41 has a main body member 41 a as a second housing member and a lid member 41 b as a first housing member, and a fixing hole 40 a is formed in the control board 40. A fixing screw 41e is inserted into the fixing hole 40a from the rear side of the control board 40, and the fixing screw 41e and a screw hole (not shown) of the lid member 41b are screwed to fix the control board 40 to the lid member 41b. Is fixed. The control board 40 is accommodated inside the board case 41 by the lid member 41 b and the main body member 41 a engaging with each other.

  A slide mechanism is formed on the upper and lower side wall surfaces of the substrate case 41. The slide mechanism includes a slide groove 41c formed in the main body member 41a and a slide piece 41d formed in the lid member 41b. The slide groove 41c is a groove formed from the upper wall surface and the lower wall surface of the main body member 41a toward the rear and inward. The opening portion located in front of the slide groove 41c is closed on the left half and opened on the right half. The slide piece 41d protrudes from the lid member 41b so as to face the slide groove 41c of the main body member 41a.

  When the substrate case 41 is closed, the slide piece 41d of the lid member 41b is inserted into the opening of the slide groove 41c of the main body member 41a, and the lid member 41b is slid leftward. Thereby, the slide groove 41c of the main body member 41a and the slide piece 41d of the lid member 41b are fitted, and the substrate case 41 is closed. On the other hand, when changing from the closed state to the open state, the lid member 41b is slid to the right with respect to the main body member 41a, and the fitting between the slide groove 41c and the slide piece 41d is released.

  Further, the control board 40 is formed with a locking hole 40b as a locking part above the fixing hole 40a arranged on the upper side of the control board 40, and between the fixing hole 40a and the locking hole 40b in the vertical direction. A thin-walled portion 40c is formed as a fragile portion. The fixing hole 40a, the locking hole 40b, and the thin portion 40c constitute an unauthorized opening prevention structure. In addition, the main body member 41a can be inserted into the locking hole 40b when the control board 40 is accommodated in the substrate case 41, but the protrusion member is configured to be immovable in the direction of coming out of the locking hole 40b. A stop 41f is formed.

  The protrusion locking portion 41f is formed with an inclined surface that is inclined in the left-right direction, is arranged so that the right side is higher, and is configured to bend to the rear side when pressed from the front side. When the lid member 41b is slid with respect to the main body member 41a, the control board 40 slides in the left direction along the inclined surface of the protruding locking portion 41f. During this sliding movement, the protrusion locking part 41 f is pressed backward by the control board 40 arranged on the front side, and the protrusion locking part 41 f is arranged on the back surface of the control board 40. When the slide groove 41c and the slide piece 41d slide and move to a position where the slide groove 41c and the slide piece 41d are fitted, the apex of the inclined surface of the protruding locking portion 41f is inserted into the locking hole 40b. In this state, the protruding locking portion 41f is inserted into the locking hole 40b of the control board 40 and is not pressed backward by the control board 40, so the protruding locking portion 41f is not bent backward. Therefore, when the slide groove 41c and the slide piece 41d are fitted, the protruding locking portion 41f is inserted into the locking hole 40b, and the movement of the control board 40 in the direction away from the main body member 41a is restricted.

  Further, the control board 40 is fixed to the lid member 41b through the fixing hole 40a. Therefore, when the control board 40 is fixed to the board case 41 and the board case 41 is closed, the control board 40 is restricted from moving away from both the main body member 41a and the lid member 41b.

  The thin portion 40 c is formed on the front surface and the back surface of the control board 40 along the left-right direction of the control board 40. The fixing hole 40a and the locking hole 40b are disposed across the thin portion 40c, the fixing hole 40a is disposed below the thin portion 40c, and the locking hole 40b is disposed on the left side of the thin portion 40c. The external force in the direction to open the substrate case 41 is a force in a direction to slide the lid member 41b to the right with respect to the main body member 41a. Therefore, when an external force for opening is applied to the substrate case 41, a rightward force applied to the lid member 41b side through the fixing hole 40a acts on the lower side of the thin portion 40c, and the upper side of the thin portion 40c. In this case, a leftward force is applied to the main body member 41a via the locking hole 40b. Therefore, a force acts in the left-right direction across the thin portion 40c of the control board 40, and a shearing force in the left-right direction acts on the thin portion 40c, thereby cutting the thin portion 40c.

  Further, at the left end portion of the substrate case 41, a main body caulking portion 41g provided on the main body member 41a, a lid caulking portion 41k provided on the lid member 41b via a connecting member 41h, a main body caulking portion and a lid caulking portion. And 41 m of sealing pieces accommodated in between. Four main body crimping portions 41g and four lid crimping portions 41k are provided, and a sealing piece 41m is accommodated in each crimping portion.

  41 m of sealing pieces are accommodated in each crimping part in the 1st state in which the surface where the character of "lock" was printed is located ahead, or the 2nd state where the surface is located in the back. A sealing claw portion 41n is formed on the back surface of the sealing piece 41m. An inner wall hole (not shown) into which the sealing claw portion 41n of the sealing piece 41m in the first state can be inserted is formed on the inner wall surface of each caulking portion.

  When the sealing piece 41m is arranged in the first state in the main body caulking portion 41g and the substrate case 41 is closed, the sealing piece 41m is fitted with the main body caulking portion 41g and the lid caulking portion 41k, and the substrate case 41 The closed state is maintained in a sealed state. On the other hand, when the sealing piece 41m is arranged in the second state in the body crimping portion 41g and the substrate case is closed, the sealing piece 41m, the body crimping portion 41g and the lid crimping portion 41k are not fitted, and the substrate case 41 The closed state is not maintained.

  Next, the unauthorized opening detection structure of the substrate case 41 will be described in detail along with a method for housing the control substrate 40 using the substrate case 41 and a method for releasing it.

  When the control board 40 is accommodated in the board case 41, the control board 40 is fixed to the lid member 41b by the fixing screw 41e. And after arrange | positioning the sealing piece 41m in the main body crimping part 41g so that it may be in a 1st state, the slide piece 41d of the cover member 41b is inserted in the slide groove | channel 41c of the main body member 41a. The protruding locking portion 41f is located on the back side of the control board 40 and is not inserted into the locking hole 40b.

  The lid member 41b is slid to the left with respect to the main body member 41a, and the substrate case 41 is closed, whereby the main body caulking portion 41g of the main body member 41a, the lid caulking portion 41k of the lid member 41b, and the sealing piece 41m. Are fitted, and the substrate case 41 is in a sealed state. The protruding locking part 41f passes through the locking hole 40b. Therefore, the control board 40 is fixed to the lid member 41b via the fixing hole 40a, is locked to the main body member 41a via the locking hole 40b, and is away from the main body member 41a and the lid member 41b. Movement is regulated.

  The lid member 41b of the substrate case 41 thus sealed and the connecting member 41h of the lid caulking portion 41k are cut, so that the lid member 41b can slide to the right with respect to the main body member 41a. When an external force is applied to move the lid member 41b in the direction to open the substrate case 41, a force pulled toward the lid member 41b via the fixing hole 40a acts on the lower side of the thin portion 40c, and the upper side of the thin portion 40c. A leftward force applied to the main body member 41a acts on the main body member 41a via the locking hole 40b. Therefore, a force acts in the opposite direction across the thin portion 40c, and a shearing force in the left-right direction acts on the thin portion 40c, thereby cutting the thin portion 40c.

  As described above, also in the substrate case 41 according to the second embodiment, when the connection member 41h that connects the lid member 41b and the lid caulking portion 41k is cut to open the substrate case 41, the control accommodated in the case is contained. The substrate 40 is destroyed. When a part of the control board 40 is destroyed, a part or all of the game control functions of the control board 40 are not exhibited, and it is possible to more reliably detect that the board case 41 has been opened illegally. .

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these, A various deformation | transformation and change are possible within the range of the summary. For example, an abnormal signal can be generated when the control board is destroyed, and the abnormal signal can be notified to the outside such as a hall clerk via the external output terminal board 39. In this way, by providing the notification means for notifying that it has been illegally opened, it is possible to detect that it has been illegally opened earlier.

  Furthermore, the structure of the substrate case is such that the main body member and the lid member move in the rotational direction as in the first embodiment, and the main body member and the lid member slide and move as in the second embodiment. In addition to the structure, the structure may be such that the main body member and the lid member are separated without using a shaft or the like and opened and closed by being separated from each other.

It is a front view of the pachinko machine concerning Embodiment 1 of the present invention. It is a rear view of the pachinko machine shown in FIG. FIG. 3 is a plan view of a main control board case according to the first embodiment. FIG. 4 is an exploded perspective view of the main control board case shown in FIG. 3. FIG. 4 is a cross-sectional view taken along the line AA of the main control board case shown in FIG. FIG. 4 is a cross-sectional view taken along line AA of the main control board case shown in FIG. 3, showing a closed state. FIG. 7 is an enlarged view of part B of the main control board case shown in FIG. 6. FIG. 4 is a cross-sectional view taken along line AA of the main control board case shown in FIG. 3, showing a closed state. 5 is an exploded perspective view of a substrate case according to Embodiment 2. FIG.

Explanation of symbols

2: Pachinko machine (game machine)
3: Frame (game machine frame)
4: Housing frame (part of the frame)
6: Game board (game device body)
6a: Game board surface (surface)
7: Center character 7a: Symbol display device 7b: Display screen (video display surface)
7c: Display pattern 7d: Opening 9: Machine frame (part of the frame)
10: Front glass (front transparent plate)
12: Decoration frame (part of the frame)
14: Storage tray 14a: Upper tray 14b: Lower tray 14c: Ball discharge button 15: Launch handle 16: Game area 22: Hinge (swing support)
23: Ball (game media)
28: Normal winning opening 29: Central start opening 30: Out opening 31: Central large winning opening 32: Decoration member 33: Passing gate 34: Main control board (control board)
34a: fixing hole (fixing part)
34b: Locking hole (locking part)
34c: Thin part (fragile part)
35: Main control board case (control board case)
35a: Main body member (second housing member)
35b: Lid member (first housing member)
35c: Fixing screw 35d: Shaft portion 35e: Arc-shaped claw portion 35f: Projection locking portion 35g: Main body caulking portion 35h: Connecting member 35k: Lid caulking portion 35m: Sealing piece 35n: Sealing claw portion 35p: Inner wall hole 35r: Rib (Regulation Department)
36: Image control board case 37: Discharge control board case 38: Power supply board case 39: External output terminal board 40: Control board 40a: Fixing part 40b: Locking hole 40c: Thin part 41: Board case 41a: Main body member 41b: Lid member 41c: Slide groove 41d: Slide piece 41e: Fixing screw 41f: Projection locking part 41g: Main body crimping part 41h: Connecting member 41k: Lid crimping part 41m: Sealing piece 41n: Sealing claw part

Claims (1)

A board case unauthorized opening detection structure for housing a control board for controlling a gaming machine by engaging a first housing member and a second housing member,
The first housing member is disposed on one side of the front or back surface of the control board, and the second housing member is disposed on the other side,
The control board housed in the board case is fixed to the first housing member at a fixing portion and locked to the second housing member at a locking portion , whereby the first housing member and the control board Movement in the direction of releasing the engagement of the second housing member is restricted,
A fragile portion that is broken by an external force in a direction to release the engagement between the first housing member and the second housing member is provided on the control board ,
The substrate case is configured to engage the opening portion of the first housing member and the opening portion of the second housing member so that the control substrate can be housed in the opening portion,
The first housing member or the second housing member slides along one side surface of the substrate case, so that the first housing member and the second housing member are engaged with each other. The state of releasing the engagement between the housing member and the second housing member is configured to be feasible,
The board case unauthorized opening detection structure, wherein the weakened portion is disposed between the fixed portion and the locking portion in a direction from one side surface of the substrate case toward a side surface facing the opening portion. .

Images