JP6269287B2 - PCB case unit - Google Patents

Description

  The present invention relates to a board case unit that houses a control board used for controlling a gaming machine.

  A gaming machine such as a pachinko gaming machine is provided with a control board that controls the operation of an electronic component mounted on the gaming machine. For example, a control board called a main control board or a main control board is equipped with a ROM in which game machine control software is written, and has a role as a central control device for overall control of the game machine operation. doing. For this reason, the control board of the gaming machine is likely to be a target of action such as replacement with a counterfeit ROM or addition of an illegal circuit.

  In order to prevent such dishonest act and provide a fair game, the control board is a board case comprising a case body formed of a transparent resin material and a case lid that can be opened and closed in front of the case body. Is housed inside. Further, when the case lid is attached to the case body in a closed state, the engagement portion formed on the case body side and the engagement portion formed on the case lid side are engaged and connected to the board case. The board case is locked in a closed state, and the board case cannot be opened unless the connecting part that connects the case lid (or the case body) and its engaging part is separated using a tool such as a nipper. A prevention mechanism (lock mechanism) is provided (see, for example, Patent Document 1).

JP 2004-65280 A

  However, fraudulent acts on control boards are becoming more sophisticated, and there is a need for measures to prevent such fraudulent acts more reliably.

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

  In order to achieve such an object, a substrate case unit according to the present invention includes a first case member (for example, the bottom case 120 in the embodiment) and a second case member (for example, detachably attached to the first case member). The second case member is held in the closed state by the first case member by moving the second case member relative to the first case member in the closing direction. The control board is housed in a case formed by being surrounded by the first case member and the second case member. In addition, a band-shaped band portion in which an engaged structure (for example, a wavy lock groove of the band portion 171 in the embodiment) and an engagement structure (for example, a lock claw of the engagement hole 172a in the embodiment) are provided. A lock portion provided at the base end of the band portion with the formed engagement hole, and when the band portion is inserted into the engagement hole from the distal end side, the engaged structure becomes the engagement structure; Two band members (for example, the lock band 170 in the embodiment) configured to be engaged and not to be pulled out of the engagement hole, and the first and second case members are formed respectively. The first and second engaging portions (for example, the bottom side engaging portion 150 and the top side engaging portion 160 in the embodiment) that engage with each other in the closed state, and the first and second engaging portions are covered. Before Cover members (for example, the lock cover 180 in the embodiment) attached to the first and second case members, and inserted into the first and second engaging portions from the front end side of the band portion, respectively. First and second band attachment portions (for example, implementations) to which the band member is attached in a state where the lock portion is accommodated in the engagement portion and the front end side of the band portion protrudes outside the engagement portion. Band attachment portions 151, 161) in the form are formed. And the 1st band formed in the said cover member attached to the said 1st and 2nd case member by the front end side of the said band part of the said band member attached to the said 1st and 2nd band attachment part respectively The cover member is protruded to the outside of the cover member through an insertion hole, and the band part is inserted into the engagement hole of the lock part through a second band insertion hole formed in the cover member from the tip side. A lock mechanism is provided that is fixed to the first and second case members and restricts relative movement of the second case member in the opening direction with respect to the first case member.

  According to the present invention, it is possible to more reliably prevent fraudulent acts on the control board.

It is a perspective view of the pachinko game machine provided with the main control board case unit concerning this embodiment. It is a rear view of the pachinko gaming machine. It is a disassembled perspective view of the said main control board case unit. It is a figure which shows the bottom side engaging part which comprises the lock mechanism in the said main control board case unit, (a) is a perspective view, (b) is a back side view, (c) is a left side view. It is a figure which shows the top side engaging part which comprises the said locking mechanism, (a) is a perspective view, (b) is a back side view, (c) is a right side view. It is a figure which shows the lock band which comprises the said locking mechanism, (a) is a perspective view, (b) is a side view. It is a figure which shows the lock cover which comprises the said lock mechanism, (a) is a perspective view, (b) is a top view, (c) is the side view seen from back. (A) is a perspective view which shows the state before mounting | wearing with the lock band in the said top side engaging part, (b) is a perspective view which shows the state which mounted | wore the lock band. (A) is sectional drawing which shows the state before mounting | wearing with the lock band to the said bottom side engaging part, (b) is sectional drawing which shows the state which mounted | wore the lock band. It is a perspective view which shows the state before mounting | wearing the lock cover to the said bottom side and top side engaging part. It is sectional drawing which shows the state before mounting | wearing the lock cover to the said bottom side and top side engaging part. (A) is a perspective view which shows the state before mounting | wearing with the lock cover in the said bottom side and top side engaging part, and inserting a lock band, (b) is a perspective view which shows the state which inserted the lock band. . (A) is sectional drawing which shows the state before mounting | wearing with the lock cover in the said bottom side and top side engaging part, and inserting a lock band, (b) is sectional drawing which shows the state which inserted the lock band. . It is sectional drawing which shows the state which attached the lock cover to the said bottom side and top side engaging part, and inserted one lock band. It is a figure which shows the state before cut | disconnecting a lock band in order to open the said main control board case unit, (a) is a perspective view, (b) It is sectional drawing. (A) is sectional drawing which shows the state which cut | disconnected the lock band in order to open the said main control board case unit, (b) is sectional drawing which shows the state in the middle of removing a lock cover. It is sectional drawing which shows a structure at the time of arrange | positioning the case side lock part in the inside of the said bottom side and top side engaging part. It is a perspective view which shows the structure at the time of arrange | positioning the crimping mechanism in the inside of the said bottom side and top side engaging part.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. As a representative example of a gaming machine provided with a board case unit according to the present invention, a perspective view and a rear view of a pachinko gaming machine PM are shown in FIGS. 1 and 2, and first, referring to these drawings, the pachinko gaming machine The overall configuration of PM will be described.

[Overall configuration of pachinko machines]
First, the basic structure of the front side of the pachinko gaming machine PM will be described with reference to FIG. As shown in FIG. 1, the pachinko gaming machine PM is configured with a rectangular frame size adapted to the front of the opening of the outer frame 1 which forms a vertically fixed holding frame configured in an outer rectangular frame size, and can be opened and closed. The front frame 2 that forms a frame is attached to the front left side edge portion of the front left and right hinge mechanism 3 so that it can be opened and closed sideways and detachable, and is called a double lock provided on the front right side edge portion. The device 4 is always held in a closed state engaged and connected to the outer frame 1.

  On the front frame 2, a rectangular glass frame 5 fitted to the upper front area of the front frame 2 is assembled so as to be opened and closed laterally and detachable using the upper and lower hinge mechanisms 3, and using the locking device 4 It is always kept in a closed state covering the front surface of the front frame 2. In the front frame 2, the game board 10 is detachably set and held, and the game area PA in front of the game board 10 is faced through the multi-layer glass 5a of the glass frame 5 that is always held closed. ing.

  Upper and lower ball trays (upper ball tray 6a and lower ball tray 6b) for storing game balls are provided at the lower portion of the glass frame 5, and a launch handle 7 for performing a game ball launch operation on the front right side of the lower ball tray 6b. Is provided. On the front side of the glass frame 5, there are provided an electrical decoration device 8 such as a light emitting diode (LED) or a lamp, and a speaker 9 for generating a sound effect according to the developed state of the game.

  Although the detailed illustration is omitted in FIG. 1, the game board 10 is a board with a decorative board that is molded by attaching a cell on which a predetermined pattern is printed to a rectangular laminated plywood that has been subjected to router processing or the like. A substantially circular game area PA is formed surrounded by upper and lower rail decorations. The game area PA is provided with game components such as a large number of game nails, windmills, central decorations, an effect display device that displays a predetermined image according to the progress of the game, and various winning holes. At the lower end of the game board, an out port is formed through the game board 10 in the front-rear direction for discharging the game ball that has fallen to the back side without falling into the winning port.

  Next, the basic structure of the back side of the pachinko gaming machine PM will be described with reference to FIG. On the back side of the front frame 2, there is a back set board 30, which has a window that communicates with the front and rear in the center and is based on a base frame that is formed in a rectangular frame shape somewhat smaller than the front frame 2. Via the hinge mechanism 3, it is connected to the back of the front frame 2 so that it can be opened, closed, and detached. A back set cover 30C having a rectangular box shape with an open front is detachably attached to the back set board 30 and is always disposed to cover the back side of the game board 10 attached to the front frame 2. (Thus, the main control board case unit 100 and the effect control board case unit 200 described later are covered by the back set cover 30C).

  Each part of the back set board 30 includes a ball storage tank 31 for storing a large number of game balls, a tank rail 32 extending from the ball storage tank 31 with a gentle downward slope to the right, and a right end portion of the tank rail 32. A ball supply passage member 33 extending downward from the connection, a prize ball payout unit 34 for paying out a game ball guided by the ball supply passage member 33, and a game ball paid out from the prize ball payout unit 34 for guiding the game ball to the upper ball tray 6. A prize ball passage member 35 and the like are provided.

  On the back side of the game board 10, there are a main control board 41 (main control board case unit 100) that comprehensively controls the operation of the pachinko gaming machine PM, an image display according to game development, effect lighting, sound effects, etc. An effect control board 42 (effect control board case unit 200) for controlling the overall effects is attached. On the other hand, on the back side of the back set board 30, a payout control board 43 (payout control board case unit 300) that performs control related to the launch and payout of game balls, various control boards that receive power from the game facility side, A power supply board 44 (power supply board case unit 400) for supplying power to the electric / electronic components is attached. These control boards and electrical / electronic components of each part of the pachinko gaming machine PM are connected by a harness (connector cable) so that the pachinko gaming machine PM can be operated.

  The pachinko gaming machine PM is used for a game in which the outer frame 1 is fixedly installed on the gaming island (installation frame base) of the gaming facility, the front frame 2, the glass frame 5 and the like are closed and locked, and is placed on the upper ball tray 6a. The game is started by storing the game ball and rotating the launch handle 7. When the firing handle 7 is turned, the game balls stored in the upper ball tray 6a are sent to the launching mechanism one by one by the ball feeding mechanism disposed on the back side of the glass frame 5, and the launching mechanism 7 After being launched into the game area PA, a pachinko game is developed thereafter.

[Configuration of main control board case unit]
Next, the configuration of the main control board case unit 100 according to the present embodiment will be described with reference to FIGS. 4, 5, and 8 to 16, in order to facilitate understanding of the explanation, only these are taken out from the main control board case unit 100 and illustrated. . In the following description, for convenience of explanation, the up, down, front, back, and left and right directions are defined with reference to the state of FIG. 3, and the directions of the arrows shown in FIG. Will be described.

  As shown in FIG. 3, the main control board case unit 100 includes the main control board 41 that plays a central role in the pachinko gaming machine PM, and a substantially rectangular box-like board case 110 that houses the main control board 41 therein. And a lock mechanism 140 that locks the substrate case 110 in the closed state.

  Although not shown in detail, the main control board 41 is configured by mounting various semiconductor devices, electronic / electrical components such as resistors, capacitors, connectors and the like using a rectangular printed wiring board as a board. The main control board 41 is fixed by screws to the inner surface of the board case 110 (top case 130 described later).

  The board case 110 includes a bottom case 120 that is attached to and detached from the back surface of the game board 10, and a top case 130 that is detachably attached to the bottom case 120. The bottom case 120 and the top case 130 are formed by a molding means such as injection molding using a transparent resin material (for example, polycarbonate or the like), and are configured so that the inside of the substrate case 110 can be seen from the outside.

  The bottom case 120 has a rectangular base wall 120a and front and rear side walls 120b erected from the periphery of the base wall 120a, and is formed in a rectangular box shape with the left surface opened as a whole. A plurality of mounting grooves 121 are formed on the outer surfaces of the upper and lower side walls 120b. The mounting groove 121 includes an insertion groove 121a that opens to the left and a locking groove 121b that extends rearward from the right (back) portion of the insertion groove 121a, and is formed in an L shape when viewed in the vertical direction. ing.

  The top case 130 has a rectangular plate-like base wall 130a and front and rear side walls 130b erected from the periphery of the base wall 131a, and is formed in a rectangular box shape whose right surface is opened as a whole. On the inner surfaces of the upper and lower side walls 130b, attachment protrusions 131 having the same number and the same arrangement interval as the attachment grooves 121 of the bottom case 120 are formed. The top case 130 inserts the attachment protrusion 131 into the attachment groove 121 (insertion groove portion 121a) of the bottom case 120 to cover the opening of the bottom case 120, and then the rear case (reverse direction) of the top case 130 with respect to the bottom case 120. The mounting protrusion 131 is inserted into the locking groove 121b of the mounting groove 121 by being slid to the bottom case 120 so as to be mounted (held) in the closed state.

  The substrate case 110 is configured so that the top case 130 is attached to the bottom case 120 in a closed state as described above, and the main control substrate 41 is accommodated in a case formed by being surrounded by the bottom case 120 and the top case 130. ing. A lock mechanism 140 that restricts the top case 130 from sliding forward (in the opening direction) relative to the bottom case 120 and locks the substrate case 110 in the closed state in a state where the main control board 41 is accommodated in this manner. Is provided.

  The top case 130 is formed with a connector insertion / extraction opening (not shown) penetrating front and back corresponding to the mounting position of the connector (not shown) of the main control board 41. The main control board 41 is connected to the board case 110. In the state accommodated in the connector, the connector of the main control board 41 is exposed to the outside through the connector insertion / extraction opening, and can be electrically connected to the effect control board 42, the payout control board 43, etc. via a harness (connector cable).

  As shown in FIGS. 3 and 10, the lock mechanism 140 is formed on the bottom side engaging portion 150 formed on the rear side wall 120 b of the bottom case 120 and the rear side wall 130 b of the top case 130. When the case 130 is attached to the bottom case 120, the top side engaging portion 160 that engages with the bottom side engaging portion 150, the two lock bands 170, the bottom side and top side engaging portions 150, 160 And a lock cover 180 to be attached.

  As shown in FIG. 6, the lock band 170 includes a band-shaped band portion 171 and a rectangular parallelepiped-shaped lock portion 172 that is integrally provided at the base end of the band portion 171. A wave-like lock groove (not shown) is formed on the surface of the band portion 171. The lock portion 172 is formed with an engagement hole 172a penetrating in a direction orthogonal to the direction in which the band portion 171 extends. The engagement hole 172a is formed in a size that allows the band portion 171 to be inserted, and a lock claw (not shown) is provided inside the engagement hole 172a. When the band portion 171 is inserted into the engagement hole 172a from the distal end side, the lock band 170 engages with the lock groove on the surface of the band portion 171 and the lock claw in the engagement hole 172a, thereby engaging the band portion 171 with the engagement hole 172a. It is configured not to be pulled out from.

  As shown in FIGS. 3 and 4, the bottom side engaging portion 150 is erected from a rectangular plate-like base wall 150 a that is integrally connected to the base wall 120 a of the bottom case 120, and from the periphery of the base wall 150 a. It has upper and lower and rear side walls 150b integrally connected to the rear side wall 120b. A band attaching portion 151 to which the lock band 170 is attached is formed inside the bottom side engaging portion 150.

  The band attaching portion 151 is opened at a substantially central position of the rear side wall 150b of the bottom side engaging portion 150, and has an accommodating portion 151a having an internal space large enough to accommodate the lock portion 172 of the lock band 170; The band insertion portion 151b extends upward from the internal space of the accommodating portion 151a and opens to the upper side wall 150b. A band insertion hole 152 having a size capable of inserting the band portion 171 of the lock band 170 is formed in the front inner surface (the inner surface facing the opening of the side wall 150b) of the accommodating portion 151a. A communication hole 153 that opens to the rear side wall 150b and communicates with the band insertion portion 151b is formed above the housing portion 151a.

  A slit-like cover mounting recess 154 extending in the vertical direction is formed on the base wall 150a of the bottom side engaging portion 150. The upper end portion of the cover mounting recess 154 extends to the upper side wall 150b of the bottom side engaging portion 150 and opens upward.

  As shown in FIGS. 3 and 5, the top side engaging portion 160 is erected from a rectangular plate-like base wall 160 a that is integrally connected to the base wall 130 a of the top case 130, and the peripheral edge of the base wall 160 a. The upper and lower and rear side walls 160b are integrally connected to the rear side wall 130b. Inside the top side engaging portion 160, similarly to the bottom side engaging portion 150, a band attaching portion 161 to which the lock band 170 is attached is formed.

  The band attaching portion 161 is configured in the same manner as the band attaching portion 151 described above, and opens at a substantially central position of the side wall 160b on the rear side of the top side engaging portion 160 and can accommodate the lock portion 172 of the lock band 170. The housing portion 161a has an internal space of a large size, and the band insertion portion 161b extends upward from the internal space of the housing portion 161a and opens in the upper side wall 160b. A band insertion hole 162 sized to allow the band portion 171 of the lock band 170 to be inserted is formed in the front inner surface (the inner surface facing the opening of the side wall 160b) of the housing portion 161a. A communication hole 163 that opens to the rear side wall 160b and communicates with the band insertion portion 161b is formed above the housing portion 161a.

  Similar to the base wall 150a of the bottom side engaging portion 150, a slit-like cover mounting recess 164 extending in the vertical direction is formed on the base wall 160a of the top side engaging portion 160. The upper end portion of the cover mounting recess 164 extends to the upper side wall 160b of the top side engaging portion 160 and opens upward.

  As shown in FIG. 7, the lock cover 180 has a rectangular plate-like upper wall 180a, left and right walls 180b and 180b, and a rear wall 180c, and is formed in a rectangular box shape whose front and lower surfaces are opened as a whole. . Mounting protrusions 181 extending in the vertical direction are formed on the inner surfaces of the left and right walls 180b and 180b (see FIG. 11). These mounting convex portions 181 are formed in a convex shape having a size that can be inserted into the cover mounting concave portions 154 and 164 of the bottom side and top side engaging portions 150 and 160. In the state where the bottom side engaging portion 150 and the top side engaging portion 160 are engaged, the lock cover 180 is configured so that the two mounting convex portions 181 are inserted into the cover mounting concave portions 154 and 164 from above, It is attached to the top side engaging portions 150 and 160. At this time, the base walls 150a and 160a of the bottom side and top side engaging portions 150 and 160 are sandwiched from the outside by the left and right walls 180b and 180b, and the base walls 150a of the bottom side and top side engaging portions 150 and 160 are sandwiched by the lock cover 180. 160a and rear and upper side walls 150b and 160b (see FIGS. 12 and 14).

  In the upper wall 180a of the lock cover 180, two first band insertion holes 182 penetrating vertically are formed side by side. In the rear wall 180c, two second band insertion holes 183 penetrating in the front-rear direction are formed side by side. In a state where the lock cover 180 is mounted on the bottom side and top side engaging portions 150 and 160, the two first band insertion holes 182 are respectively connected to the upper end openings of the band insertion portions 151b and 161b of the band attachment portions 151 and 161, respectively. It is formed in a communicating position. The two second band insertion holes 183 are formed at positions communicating with the rear end openings of the accommodating portions 151a and 161a of the band attaching portions 151 and 161, respectively.

  The inner surface of the rear wall 180c below the two second band insertion holes 183 is formed in a shape that extends rearward from the other part of the rear wall 180c. That is, in a state where the lock cover 180 is attached to the bottom side and top side engaging portions 150 and 160, the inner surface of the rear wall 180c below and the rear side walls 150b and 160b from the two second band insertion holes 183. The gap is larger than the other part of the rear wall 180c (see FIG. 16).

[Operation of main control board case unit]
Next, the operation of the main control board unit 100 configured as described above will be described with reference to FIGS. 3 and 8 to 16. To assemble the main control board case unit 100, first, the main control board 41 is screwed and fixed to the inner surface side of the top case 130 and the main control board 41 is attached to the top case 130.

  Then, as shown in FIG. 3, the mounting protrusion 131 of the top case 130 is inserted into the mounting groove 121 (insertion groove portion 121a) of the bottom case 120 from the left side, and the top case 130 covers the opening of the bottom case 120, and then The top case 130 is slid rearward (in the closing direction) with respect to the bottom case 120, and the mounting protrusion 131 is inserted into the locking groove 121 b of the mounting groove 121. As a result, the top case 130 is held (attached) to the bottom case 120 in a closed state, and the main control board 41 is housed inside the case formed by being surrounded by the bottom case 120 and the top case 130. At this time, as shown in FIG. 8, the bottom side engaging portion 150 and the top side engaging portion 160 are engaged.

  Next, as shown in FIGS. 8 and 9, the two lock bands 170 are attached to the band attaching portions 151 and 161 of the bottom side and top side engaging portions 150 and 160, respectively. At this time, in the bottom side engaging portion 150, the band portion 171 of the lock band 170 is inserted from the distal end side in the order of the accommodating portion 151a of the band attaching portion 151 and the band insertion portion 151b, and the lock portion 172 of the lock band 170 is accommodated in the accommodating portion. The lock band 170 is attached to the band attaching portion 151 while being housed in 151 a and the front end side of the band portion 171 is projected from the upper end opening of the band insertion portion 151 b to the outside of the bottom side engaging portion 150. Similarly, the lock band 170 is attached to the band attaching portion 161 in the top side engaging portion 160. The lower end portions of the band insertion portions 151b and 161b (portions connected to the receiving portions 151a and 161a) are opened in the side walls 150b and 160b on the rear side, and the lock band 170 is inserted into the band mounting portions 151 and 161 through this opening. It is easy to install. Note that before attaching the top case 130 to the bottom case 120, the lock band 170 may be attached to the bottom side and top side engaging portions 150 and 160, respectively.

  When the lock band 170 is attached to the bottom side engaging portion 150 in this way, as shown in FIG. 9B, the rear end opening of the engaging hole 172a of the lock portion 172 passes through the rear end opening of the accommodating portion 151a. And the front end opening of the engagement hole 172a is in communication with the band insertion hole 152 formed in the front inner surface of the accommodating portion 151a. Similarly, in the lock band 170 attached to the top side engaging portion 160, the rear end opening of the engaging hole 172a is exposed to the outside through the rear end opening of the accommodating portion 161a, and the front end opening of the engaging hole 172a is exposed. Is in a state of being opposed to and communicated with the band insertion hole 162 formed on the front inner surface of the accommodating portion 161a.

  Next, as shown in FIGS. 10 and 11, the lock cover 180 is attached to the bottom side and top side engaging portions 150 and 160. At this time, the band portions 171 of the two lock bands 170 attached to the bottom side and top side engaging portions 150 and 160 are inserted into the two first band insertion holes 182 of the lock cover 180 from the distal end side. Further, the two mounting convex portions 181 of the lock cover 180 are inserted into the cover mounting concave portions 154 and 164 of the bottom side and top side engaging portions 150 and 160 from above, respectively, so that the lock cover 180 is engaged with the bottom side and top side. It is attached to the parts 150 and 160.

  When the lock cover 180 is thus attached to the bottom side and top side engaging portions 150 and 160, as shown in FIG. 12, the front end side of the band portion 171 of the lock band 170 is the first band insertion hole 182 of the lock cover 180. It passes through the lock cover 180 and passes through. Further, as shown in FIG. 14, the base walls 150 a and 160 a of the bottom side and top side engaging portions 150 and 160 are sandwiched from the outside by the lock cover 180, and the bottom side and top side engaging portions 150 and 160 are held by the lock cover 180. The 160 base walls 150a and 160a and the upper and lower and rear side walls 150b and 160b are covered.

  Subsequently, as shown in FIGS. 12 and 13, the band portions 171 of the two lock bands 170 are respectively bent downward, and the band portions 171 are inserted into the two second band insertion holes 183 of the lock cover 180 from the distal end side. Each is inserted and inserted into the engagement hole 172a of the lock portion 172 accommodated therein. At this time, as shown in FIG. 13 (b), in the bottom side engaging portion 150, the front end side of the band portion 171 inserted into the engaging hole 172 a of the lock portion 172 is the band of the accommodating portion 151 a of the band attaching portion 151. It will be in the state which protruded to the internal space of the bottom side engaging part 150 through the insertion hole 152. FIG. Further, as shown in FIG. 14, similarly, in the top side engaging portion 160, the front end side of the band portion 171 passes through the band insertion hole 162 of the accommodating portion 161 a of the band attaching portion 161, and the top side engaging portion 160. It will be in the state which protruded into the interior space.

  Thus, by inserting the band portions 171 of the two lock bands 170 into the lock portions 172, the lock cover 180 is fixedly attached to the bottom side and top side engaging portions 150 and 160. Then, the lock cover 180 fixed in this way restricts the top case 130 from moving relative to the bottom case 120 forward and to the left (opening direction) (sliding movement). As a result, the bottom case 120 and the top case 130 are integrated in a closed state and a locked state, and the main control board case unit 100 is assembled.

  Next, in order to open the substrate case 110, first, the two lock bands 170 exposed to the outside of the lock cover 180 are each cut using a tool such as a cutter. In the present embodiment, a case will be described in which a portion of the lock band 170 in the vicinity of the second band insertion hole 183 of the lock cover 180 (a portion indicated by an ellipse in FIG. 15) is cut at one place. In addition, the cutting | disconnection location of the lock band 170 may cut | disconnect parts other than the 2nd band penetration hole 183 vicinity, and may cut | disconnect a several part. When the two lock bands 170 are cut in this way, the locked state of the lock cover 180 with respect to the bottom side and top side engaging portions 150 and 160 is released.

  Then, as shown in FIG. 16, the lock cover 180 is slid upward and removed from the bottom side and top side engaging portions 150 and 160. At this time, as shown in FIG. 16B, since the inner surface below the second band insertion hole 183 of the lock cover 180 is formed in a shape expanding rearward, the cut end of the lock band 170 is the lock cover. The movement of the lock cover 180 is prevented from interfering with the lock 180, and the lock cover 180 can be easily removed (see the part indicated by an ellipse in FIG. 16B). When the lock cover 180 is removed in this way, the top case 130 is slidable in the opening direction with respect to the bottom case 120, and the substrate case 110 is opened by sliding the top case 130 in the opening direction. .

  As described above, according to the main control board case unit 100 according to the present embodiment, the lock cover 180 is formed by the two lock bands 170 in which the lock portions 172 are accommodated in the bottom side and top side engaging portions 150 and 160, respectively. It is fixedly attached to the bottom side and top side engaging portions 150 and 160. The lock cover 180 fixed in this manner restricts the top case 130 from moving relative to the bottom case 120 forward and to the left (in the opening direction) (sliding movement). Therefore, it is possible to prevent unauthorized opening of the substrate case 110 and to prevent unauthorized modification to the main control board 41. In addition, since the lock portions 172 of the two lock bands 170 are attached in the state of being accommodated in the accommodating portions 151a and 161a of the bottom side and top side engaging portions 150 and 160, respectively, It is difficult to release the lock band 170 by performing an unauthorized operation. Therefore, in order to open the substrate case 110, the lock band 170 must be cut as described above, and the lock band 170 cannot be reused. Accordingly, the same type of substrate case (110) is taken out from a plurality of used machines, etc., and the case components are extracted from these in an intact state, and are combined as appropriate, so that one new substrate case (110) is obtained. It is possible to prevent a so-called fraudulent act called “Nikoichi” that duplicates and replaces this with a genuine product.

  In addition, the inner surface of the lock cover 180 below the second band insertion hole 183 (on the rear side in the removal direction) is formed in a shape that extends rearward. Therefore, when the lock cover 180 is removed, when the portion near the second band insertion hole 183 of the lock cover 180 in the lock band 170 is cut, the cut end of the lock band 170 interferes with the lock cover 180 and locks. Preventing the movement of the cover 180 in the removal direction can be prevented, and the lock cover 180 can be easily removed.

  In addition, this invention is not limited to the said embodiment, If it is a range which does not deviate from the summary of this invention, it can improve suitably. For example, in the above-described embodiment, as shown in FIG. 17, an engagement structure similar to the lock portion 172 of the lock band 170, that is, an engagement hole having a size that allows the band portion 171 to be inserted and the inside of the engagement hole. The case side lock part 190 having a lock claw is passed through the band insertion holes 152, 162 of the accommodating parts 151a, 161a in the bottom side and top side engaging parts 150, 160, and the bottom side and top side engaging parts 150, You may make it each provide in the position where the front end side of the band part 171 which protruded in the internal space of 160 is inserted. With this configuration, after the lock band 170 is cut and the lock cover 180 is removed, it is difficult to remove the lock band 170 from the bottom side and top side engaging portions 150 and 160 (band attaching portions 151 and 161). Can do.

  In the above-described embodiment, as shown in FIG. 18, the bottom case 120 and the top are regulated by restricting the top case 130 from sliding in the opening direction inside the bottom side and top side engaging portions 150 and 160. It is good also as a structure provided with the crimping mechanism 200 which makes the case 130 a closed state and a locked state. If comprised in this way, the above-mentioned locking mechanism 140 (two lock bands 170 and the lock cover 180) and the caulking mechanism 200 can multiplex an unauthorized opening prevention mechanism, and the unauthorized opening of the substrate case 110 can be further improved. It can be surely prevented.

  In the above-described embodiment, the two lock bands 170 and the lock cover 180 may be managed with a common serial number. If comprised in this way, the above-mentioned fraudulent act called the so-called two (Nikoichi) can be prevented more reliably.

  In the above-described embodiment, the case where the board case unit according to the present invention is applied to the main control board case unit of the pachinko game machine is described as an example, but the present invention is not limited to this, and the production control board It may be applied to other board case units such as a case unit and a payout control board case unit, and further, the same effect can be obtained when applied to a gaming machine other than a pachinko gaming machine, for example, a board case unit of a slot machine. It is possible to obtain.

41 Main control board 100 Main control board case unit 110 Substrate case 120 Bottom case (first case member)
130 Top case (second case member)
140 Lock mechanism 150 Bottom side engaging portion (first engaging portion)
151 Band mounting part (1st band mounting part)
160 Top side engagement part (second engagement part)
161 Band mounting part (second band mounting part)
170 Rock band (band member)
171 Band part 172 Lock part 172a Engagement hole 180 Lock cover 182 First band insertion hole 183 Second band insertion hole 190 Case side lock part

Claims (3)

The second case member includes a first case member and a second case member that is detachably attached to the first case member, and the second case member is moved relative to the first case member in a closing direction. Is held in the first case member in a closed state, and a board case unit that houses a control board inside a case formed by being surrounded by the first case member and the second case member,
A band-shaped band part formed with an engaged structure and an engagement hole formed with an engagement structure; and a lock part provided at a base end of the band part, and the band part is Two band members configured such that when the engagement structure is inserted into the engagement hole, the engaged structure engages with the engagement structure and the band portion cannot be pulled out from the engagement hole;
First and second engaging portions respectively formed on the first and second case members and engaged with each other in the closed state;
A cover member that covers the first and second engaging portions and is attached to the first and second case members;
Each of the first and second engaging portions is inserted from the front end side of the band portion to house the lock portion inside the engaging portion, and the front end side of the band portion is outside the engaging portion. First and second band attaching portions to which the band member is attached in the protruded state are formed,
A first band insertion hole formed in the cover member attached to the first and second case members on the front end side of the band member attached to the first and second band attaching portions, respectively. Through the second band insertion hole formed in the cover member from the front end side, and the band member is inserted into the engagement hole of the lock portion. A substrate case unit, comprising: a lock mechanism that is fixed to the first and second case members and that restricts relative movement of the second case member in the opening direction with respect to the first case member.   2. The substrate case unit according to claim 1, wherein the cover member is formed in a shape in which an inner surface on the rear side in the removal direction of the cover member extends outward from the second band insertion hole. A case-side lock portion having an engagement hole in which an engagement structure similar to the lock portion of the band member is formed passes through the second band insertion hole of the cover member, and the engagement hole of the lock portion The board case unit according to claim 1, wherein the band portion inserted into the base plate is provided at a position inside the first engaging portion and the second engaging portion inserted from the front end side.

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