JP2007050230A - Board case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a board case which has a simple structure and facilitates the attachment of a lid member to a main body member. <P>SOLUTION: A main board case 100 which houses a main control board 31 inside is constituted of a case body member 50 having a lid member attaching groove 54 which is formed to have an L-shaped cross section on the opening section, and a case lid member 60 having a fastening protrusion section 62 which is formed in a manner to project from the side section of the opening section. With the main control board 31 attached inside of the case lid member 60, the opening section of the case body member 50 and the opening section of the case lid member 60 are adjusted, and the fastening protrusion section 62 is inserted in the lid member attaching groove 54. Then, the case lid member 60 is slid to the case body member 50, and a closed state is presented. In this case, the right end sides of the case body member 50 and the case lid member 60 are provided with a main body side temporary fixing section 55 and a lid side temporary fixing section 63, and when the case lid member 60 is attached to the case body member 50 by sliding, the temporary fixing sections 55 and 63 are engaged, and the case body member 50 and the case lid member 60 are fixed and held. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a substrate case in which a substrate is held and attached to the back side of a game board.

  In gaming machines such as pachinko machines and slot machines, a control board for controlling the operation of the gaming machine is provided. For example, in a pachinko gaming machine, a game board or the like is mounted on a storage frame on the back side of a front frame that is assembled to be openable and closable with respect to an outer frame, and a control board is attached to the game board. Similarly, in the slot machine, a control board is attached to the back surface of the opening / closing cover.

  These control boards are boards that control the operation of pachinko games or slot machines, such as prize ball or medal payout control, opening / closing control of electric accessories, reel rotation control, symbol combination occurrence probability control, etc. A ROM in which the control software is recorded is mounted and has a role as a central control device for controlling the operation of the gaming machine. For this reason, the control board is housed in a board case to prevent unauthorized modification such as replacement with a counterfeit ROM, and the board case is illegally opened so that its trace remains when the case is opened ( Alternatively, a means for preventing unauthorized attachment / detachment is provided (see, for example, Patent Document 1). For example, the substrate case is configured to be openable and closable by swinging the lid member with respect to the main body member, and configured so that the closed main body member and the lid member cannot be illegally opened by fastening with a special screw. .

JP 2004-283443 A

  However, if the substrate case is composed of a main body member and a lid member and is configured to open and close by swinging the lid member relative to the main body member, the structure of the substrate case becomes complicated, and these are assembled. There was a problem that the work was complicated.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a substrate case that has a simple structure and that allows easy attachment of a lid member to a main body member.

  In order to solve the above-mentioned problems, a substrate case according to the present invention (for example, the main substrate case 100 in the embodiment) accommodates a substrate (for example, the main control substrate 31 in the embodiment) inside, and is provided in the opening. A main body member (for example, the case main body member 50 in the embodiment) in which a lid member mounting groove, which is a L-shaped groove, is formed, and a locking protrusion that is a protrusion protruding from the side of the opening is formed. The lid member (for example, the case lid member 60 in the embodiment) is inserted into the lid member mounting groove so that the opening of the body member and the opening of the lid member are aligned with each other, and the body The lid member is slid and attached to the member so as to be in a closed state.

  At this time, the substrate is preferably configured to be inserted from the opening and attached to the inside of the lid member, and the lid member is preferably attached to the main body member in a state where the substrate is attached.

  Moreover, it is preferable to have a fixing mechanism (for example, the main body-side temporary fixing portion 55 and the lid-side temporary fixing portion 63 in the embodiment) that holds the closed state when the lid member is attached to the main body member.

  When the substrate case according to the present invention is configured as described above, the attachment structure can be simplified and the attachment of the lid member to the main body member can be performed with a simple operation, thereby improving the efficiency of the attachment work. be able to. Further, by configuring the lid member to be attached to the main body member in a state where the substrate is attached to the lid member, the work of attaching the substrate to the lid member is facilitated, and the work efficiency can be further improved. Similarly, when the lid member is slid and attached to the main body member, the fixing operation for fixing and holding them is facilitated, and the fixing operation of the main body member and the lid member is facilitated.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, a pachinko machine PM is shown in FIG. 1 as a representative example of the gaming machine according to the present invention, and the overall configuration of the pachinko machine PM will be described with reference to this drawing. Here, FIG. 1 is a front view of the pachinko machine PM.

  In the pachinko machine PM, a front frame 2 that is configured to have a rectangular frame size and forms an open / close mounting frame is formed on the front surface of the outer frame 1 that forms a vertical fixed holding frame that is configured to have an outer rectangular frame size. The upper and lower hinge mechanisms 3a and 3b arranged on the left edge of the frame are attached so as to be openable and detachable laterally and are always closed and locked to the outer frame 1 using the locking mechanism 4 provided on the right edge. It is held in the state.

  Each part of the front frame 2 has a hinge mechanism 7a provided with a square glass door 5 and a ball tray 6 on the left side of the front as a game development member for developing a pachinko game. 7b and 7c are used so as to be able to open / close and detach from the side, and an operation handle 8 for performing a game ball launching operation is provided at the lower right side of the ball tray 6. A rectangular frame-shaped storage frame (not shown) that protrudes rearward from the center to the top of the front frame 2 is formed integrally with the front frame 2, and the game board is configured with a predetermined gauge setting in the storage frame. 10 is detachably set and held, and the game area PA in front of the game board 10 faces the glass door 5 that is normally held closed.

  The game board 10 has a decorative board (also referred to as a veneer board) 11 in which a laminated plywood having a thickness of about 19 mm is cut into a predetermined shape and processed with a router, and a predetermined design cell is attached to the surface. Configured as In addition, a belt-shaped guide rail 12 is fixed to the front frame 2 in an arc shape, and the above-described game area PA is partitioned on the inner side surrounded by the guide rail 12.

  The game area PA includes a large number of game nails, a windmill 21 such as a lamp windmill and a general windmill, a general prize-winning tool, a starter, and a prize-winning tool 22 such as an attacker with a big prize opening, and the progress of the game. An image display device 23 for displaying a predetermined image is attached, and a game ball (referred to as an “out ball”) that has fallen without winning the winning tool 22 is discharged to the back of the game board 10 at the lower end of the game area PA. An out port 24 is provided. A game ball (referred to as a “safe ball”) dropped into each winning device 22 is detected by a winning port switch and a start port switch provided in these winning devices 22 and passes through a safe ball passage penetrating the decorative board 11. And discharged to the back of the game board 10. Further, the out balls collected at the out port 24 are discharged to the back side of the game board 10 through the out ball passage hole penetrating the decorative board 11.

  The pachinko machine PM configured as described above is used in a game in which the front frame 2, the glass door 5, and the ball tray 6 are all closed and locked, and the game ball is stored in the ball tray 6 and the operation handle 8 is stored. The game is started by rotating the. When the operation handle 8 is turned, the game balls stored in the ball tray 6 are shot one by one into the game area PA of the game board 10 by the hitting ball launcher, and the pachinko game is developed thereafter.

  On the back side of the game board 10, a main board assembly 30 that houses a main control board that controls the entire pachinko machine PM and an image control board that controls images displayed on the image display device 23 are housed. An image control board assembly 40 is attached. The main board assembly 30 and the image control board assembly 40 attached to the game board 10 will now be described with reference to FIGS. 2 and 3. 2 is a rear view of the game board 10, and FIG. 3 is a perspective view of the game board 10 as viewed from the rear. In the following description, front and rear, right and left, and top and bottom are defined based on the states of FIGS. 2 and 3 (see FIG. 3).

  An opening 13 for attaching the image display device 23 is formed at the center of the game board 10, and image assembly attachment parts 14 a, 14b is arranged. A total of four mounting projections 40a and 40b are formed above and below the left and right side portions of the image control board assembly 40. These mounting projections 40a and 40b are attached to the image assembly mounting portions 14a and 14b by screw fastening or the like. Then, the image control board assembly 40 is fixed to the game board 10.

  Further, main board mounting portions 15a and 15b are disposed on the left and right edges on the back side of the lower part of the game board 10, and the main board assembly 30 is mounted on the main board mounting portions 15a and 15b. The main board attaching portions 15a and 15b are formed so as to protrude rearward from the image assembly attaching parts 14a and 14b, and the upper part of the main board assembly 30 is the lower part of the image control board assembly 40 in the rear view. Is attached to the game board 10 so as to cover from behind.

  In this way, the main board assembly 30 is arranged so as to cover a part of the image control board assembly 40 (partly overlap in the rear view), thereby increasing the size of the image control board assembly 40. These assemblies 30 and 40 can be arranged on the back side of the game board 10 without increasing the vertical dimension.

  Next, the main substrate assembly 30 will be described with reference to FIGS. 4 is an exploded perspective view of the main board assembly 30, FIG. 5 is an explanatory view showing a method for closing the main board case 100 constituting the main board assembly 30, and FIG. 6 shows the main board assembly 30. As shown in FIG. 7 is a view showing a case main body member 50 constituting the main board case 100, FIG. 8 is a view showing a case lid member 60 constituting the main board case 100, and FIG. It is the rear view to which the principal part of was expanded.

  The main board assembly 30 includes a main control board 31 that comprehensively controls the operation of the pachinko machine PM, and a main board case 100 that houses the main control board 31 therein. Further, the main board case 100 includes a case body member 50 that is attached to and detached from the back side of the game board 10 and a case lid member 60 that is detachably attached to the case body member 50. The main board assembly 30 is configured such that the case lid member 60 can be attached to the case body member 50 in a state where the main control board 31 is attached to the inner surface side of the case lid member 60.

  As shown in FIG. 4, the main control board 31 includes electronic components such as a CPU 32 disposed at the center and connection connectors 33 disposed on the left and right. Substrate mounting holes 34 are formed at the four corners of the main control board 31, and board mounting screws 61 are inserted into the board mounting holes 34, with respect to the board mounting portion 67 of the case lid member 60 shown in FIG. It is configured to be screwed and fastened.

The case body member 50 has a rectangular box shape with an opening on the front side, and is integrally molded by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). Is done. Reinforcing ribs 52 are formed vertically and horizontally on the inner surface side bottom 51 of the case body member 50 to improve the strength of the case body member 50.

  A plurality of lid member attachment grooves 54 are formed in each of the side wall portions (side wall portions extending forward from the upper and lower edge portions of the bottom portion 51) 53, 53 of the case main body member 50. Describing in detail with reference to FIG. 5, the side wall 53 has a first wall 53 a extending forward from the bottom 51, a thickness smaller than the first wall 53 a, and further extending forward from the first wall 53 a. It consists of the 2nd wall part 53b, and the inner surface side of the case main body member 50 is formed in the step shape. The lid member attaching groove 54 is formed in the second wall portion 53b and is formed so that the front side and the inner surface side of the case main body member 50 are opened. As shown in FIG. 5, the lid member mounting groove 54 includes an insertion groove portion 54a that opens forward, a locking portion 53c that extends from the second wall member 53 on the front side, and a first wall portion 53a. It is comprised from the latching groove part 54b enclosed by.

  The case lid member 60 has a rectangular box shape covering the opening of the case main body member 50, and is integrally formed by a molding means such as injection molding using a transparent resin material such as ABS resin or polycarbonate (PC). To be molded. A plurality of locking projections 62 projecting outward (vertical direction in FIG. 4) are formed on the side wall 69 positioned at the vertical edge of the case lid member 60. The locking projections 62 are formed in the same number as the lid member mounting groove 54 described above, and the arrangement interval thereof also corresponds to the lid member mounting groove 54. Therefore, as shown in FIG. 5C, when attaching the case lid member 60 to the case main body member 50, the locking protrusion 62 is inserted into the insertion groove 54a of the lid member attachment groove 54 from the front, Thereafter, the case lid member 60 is slid in the left-right direction (leftward in this embodiment) and the locking projection 62 is inserted into the locking groove 54b, whereby the locking projection 62 and the lid member mounting groove 54 are inserted. And fit. Therefore, the case lid member 60 is restricted from moving backward with respect to the case main body member 50 (moving to remove the case lid member 60 from the case main body member 50). When the locking projection 62 is inserted into the insertion groove 54a, the lower end of the side wall 69 of the case lid member 60 is supported by the upper end of the first wall 53a (the step of the side wall 53).

  Here, a main body side temporary fixing portion 55 is formed on the left end side of the case main body member 50, and a lid side temporary fixing portion 63 is formed on the left end side of the case lid member 60. When the case lid member 60 is attached to the case body member 50, that is, when the case lid member 60 is slid and attached to the case body member 50 in the left direction, these body side temporary fixing portions 55 are attached. And the lid-side temporary fixing portion 63 are engaged with each other, and the case lid member 60 is restricted from sliding to the right with respect to the case body member 50. Note that the case body member 50 and the case lid member 60 are formed of a resin material as described above, and the body side temporary fixing portion 55 and the lid side temporary fixing portion 63 are formed thin, so that it is easy. Can be bent. Therefore, by engaging the left end side of the lid side temporary fixing part 63 away from the main body side temporary fixing part 55, the engagement between the main body side temporary fixing part 55 and the lid side temporary fixing part 63 is released, and the case main body member 50, the case lid member 60 can be slid rightward to remove the case lid member 60 from the case main body member 50.

  In this way, the main board case 100 in which the main control board 31 is accommodated is divided into the case main body member 50 and the case lid member 60 that can be separated from each other, thereby attaching the main control board 31 to the case lid member 60. In some cases, since the opening of the case lid member 60 can be placed on a work desk or the like with the opening facing upward, the attachment work is facilitated and the assembly efficiency is improved. Also, when attaching the case lid member 60 to the case main body member 50, the case lid member 60 can be attached only by sliding movement, so this operation is also easy. Further, when the case lid member 60 is slid and attached to the case body member 50 in this manner, the lid member attachment groove 54 is formed on the case body member 50 side, and the locking projection 62 is formed on the case lid member 60. By doing so, the mounting structure can be made, so that the structure of the main board case 100 can be simplified.

  As described above, since the main control board 31 is stored in the main board case 100 (the case main body member 50 and the case lid member 60), an illegal act on the main control board 31 can be prevented. However, when the case lid member 60 is attached to the case body member 50, the body side temporary fastening portion 55 and the lid side temporary fastening portion 63 are merely engaged, and the case body member It is easy to remove the case lid member 60 from 50. Therefore, in order to prevent the case lid member 60 in the closed state from slidingly moving with respect to the case body member 50 and preventing unauthorized operation, the main substrate assembly 30 is provided with an unauthorized opening prevention mechanism 70. Therefore, the unauthorized opening prevention mechanism 70 provided in the main board assembly 30 will be described in detail below with reference to FIGS.

  10 and 11 are perspective views of the stopper member 71, FIG. 12 is a perspective view of the outer member 80 constituting the stopper member 71, and FIG. 13 is a perspective view of the inner member 90 constituting the stopper member 71. 14 is an enlarged view of a main part showing a case where the case lid member 60 is locked and held on the case body member 50 using the stopper member 71. FIG. 15 is a case lid on the case body member 50 using the stopper member 71. FIG. 16 is an essential part enlarged view showing a case where the member 60 is not locked and held, FIG. 16 is an XVI-XVI sectional view of FIG. 6, and FIG. 17 is an XVII-XVII sectional view of FIG.

  As shown in FIG. 4 and the like, the unauthorized opening prevention mechanism 70 is connected to the left end side of the case lid member 60 and the four main body side engaging portions 56 integrally formed by connecting to the left end side of the case main body member 50. The four lid-side engaging portions 64 are formed, and the four stopper members 71 are inserted into the lid-side engaging portion 64 and hold the case lid member 60 on the case body member 50.

  As shown in FIG. 7, the main body side engaging portion 56 includes an engaging bottom portion 56a covered with each of the lid side engaging portions 64 when the case lid member 60 is attached to the case main body member 50, and this engagement. An engagement wall portion 56b that extends forward from the vertical edge and the left edge of the bottom portion 56a and covers the periphery of the opening of the lid-side engagement portion 64 when the case lid member 60 is attached to the case body member 50. A concave engagement concave portion 56c and a concave nail retracting concave portion 56f are formed side by side in the left-right direction at a substantially central portion of the engagement bottom portion 56a. Engaging grooves 56d and 56d are formed in the left-right direction so as to sandwich the engaging recess 56c and the claw retracting recess 56f. Furthermore, an engagement holding portion 56e that holds the lid-side engagement portion 64 when the case lid member 60 is attached to the case body member 50 is formed at the right end portion of the engagement wall portion 56b. On the other hand, the lid side engaging portion 64 is formed in a rectangular box shape having an open front side (a side facing the main body side engaging portion 56 when the case lid member 60 is attached to the case main body member 50). Yes. Note that a lid side coupling portion 66 connects the left side wall portion 65 and the lid side engaging portion 64 that form a region for housing the main control board 31 in the case lid member 60. The lid side connecting portion 66 is configured to be cuttable, and the lid side engaging portion 64 can be separated from the case lid member 60. Further, on both side portions in the vertical direction, engagement protrusions 64b that protrude outward and fit with the above-described engagement holding portion 56e are formed.

  The stopper member 71 is made of a resin or the like and is formed in a rectangular box shape, and is configured by combining a rectangular box-shaped outer member 80 and a rectangular box-shaped inner member 90. The outer member 80 has an outer opening 81 that is open on one surface, and an engaging claw 83 that is cut in a tongue shape is formed on a surface 82 that faces the outer opening 81. The engaging claw portion 83 has an inclined surface 83 a whose base end side is gently inclined outward from the surface 82, and the distal end side has an engaging surface 83 b substantially perpendicular to the surface 82. The surface 82 is formed with guide portions 82 a and 82 a that protrude outward so as to sandwich the engaging claw portion 83 and extend substantially parallel to the extending direction of the engaging claw portion 83. In addition, a mounting hole 84a is formed in a substantially central portion of each of the surfaces 84 and 84 parallel to the extending direction of the engaging claw 83, and each of the surfaces 84 and 84 is cut off from the opening 81 side. A groove 84b is formed. Similarly, a groove 85a is formed in the surface 85 on the proximal end side of the engaging claw 83, and the surface 85 is cut off from the outer opening 81 side. A groove 86a is formed by cutting the surface 86 from the outer opening 81 side.

  One side of the inner member 90 is opened to form an inner opening 91. Of the side surfaces forming the inner opening 91, one of the opposing surfaces 92, 92 is formed with a mounting claw portion 92 a that protrudes outward. Further, one of the other opposing surfaces 93 has a base end portion 93a formed on the side opposite to the inner opening 91, cut into a tongue shape, and a locking projection protruding outward. A portion 93b is formed. Further, of the edge portion of the surface 94 facing the inner opening 91, the portion in contact with the surface 92 where the attachment claw portion 92 a is formed and the portion in contact with the surface 95 where the locking projection 93 is not formed are Flange portions 94a and 94b that are located in the same plane as the surface 94 and project outward are formed.

  When the inner member 90 is inserted into the outer opening 81 of the outer member 80 configured as described above from the inner opening 91 side, the flange portions 94a and 94a of the inner member 90 are inserted into the groove portion 84b of the outer member 80. The flange portion 94b is combined so as to close the outer opening 81a side of the groove portion 86a, and the attachment claw portion 92a engages with the attachment hole 84a so that the inner member 90 is fixed to the outer member 80, thereby stopping the stopper member 71. Is assembled. At this time, the locking projection 93b of the inner member 90 protrudes outward from the groove 85a of the outer member 80.

  Thus, by configuring the stopper member 71 with the outer member 80 and the inner member 90 having one surface opened, the outer member 80 and the inner member 90 can be easily manufactured by injection molding or the like. Moreover, since the stopper member 71 can also be assembled only by combining the outer member 80 and the inner member 90 as described above, the manufacturing cost can be reduced.

  As shown in FIGS. 14 and 15, the stopper member 71 is used by being inserted into the lid side engaging portion 64. First, in order to restrict the rightward sliding movement of the case lid member 60 attached to the case body member 50 (referred to as “locking state”), as shown in FIG. The lid is such that the engaging claw 83 faces downward and the inclined surface 83a of the engaging claw 83 is located to the left (the direction in which the case claw member 60 is slid and moved when attached to the case body member 50). The stopper member 71 is inserted into the side engaging portion 64 (the state of the stopper member 71 is referred to as “locked state”). When the stopper member 71 is inserted into the lid side engaging portion 64, the locking projection 93b of the stopper member 71 is pressed against the inner wall of the lid side engaging portion 64 and elastically biased. Even if the opening of the lid side engaging portion 64 is directed downward, the stopper member 71 does not easily fall off.

  In this state, when the locking projection 62 of the case lid member 60 is inserted into the lid member mounting groove 54 of the case body member 50, the engaging claw 83 of the stopper member 71 is positioned in the claw retracting recess 56f. The engaging claw portion 83 is not pushed upward, and as a result, the lid side engaging portion 64 is also not pushed up. When the case lid member 60 is slid leftward with respect to the case body member 50, the engaging claw portion 83 of the stopper member 71 is formed on the right end side of the claw waiting recess 56f along the inclined surface 83a. The locking claw 83 moves to the left while being pushed up by the inclined surface. At this time, the engaging protrusion 64b formed on the lid side engaging portion 64 is inserted into the engaging holding portion 56e formed on the main body side engaging portion 56 from the right end portion at the same time. Even if 83 is pushed up, the lid side engaging portion 64 is not pushed up.

  Then, when the lid side engaging portion 64 and the main body side engaging portion 56 are overlapped, the positions of the engaging claw portion 83 and the engaging concave portion 56c coincide with each other, and the pushed engaging claw portion 83 is The engaging recess 56c is elastically engaged, the engaging recess 56c and the engaging claw 83 are engaged, and the guide portions 82a and 82a of the stopper member 71 are engaged with the engaging grooves 56d and 56d of the main body side engaging portion 56. Further, the engagement protrusion 64b and the engagement holding portion 56e are fitted, and the main body side engagement portion 56 and the lid side engagement portion 64 are engaged. In this state, even if the case lid member 60 is slid to the right, the engagement surface 83b of the engagement claw 83 is engaged with the engagement recess 56c, and this engagement surface 83b is engaged. Since it extends along the wall of the recessed portion 56, the engaging claw portion 83 is not pushed upward, and the engaging protrusion 64b and the engaging holding portion 56e are fitted, so that the lid side engagement is achieved. The mating portion 64 cannot be pulled away from the main body side engaging portion 56, and the engaging claw 83 is not detached from the engaging recess 56c. Therefore, the main body side engaging portion 56 and the lid side engaging portion 64 are fixed, and the case lid member 60 can be fixedly held (locked) with respect to the case main body member 50.

  On the other hand, as shown in FIG. 15, when the engaging claw 83 is inserted into the lid side engaging portion 64 so as to be positioned in the lid side engaging portion 64 (the engaging claw portion 83 is located at the upper side). When the main body side engaging portion 56 and the lid side engaging portion 64 are not engaged with each other, the case main body member 50 is inserted. On the other hand, the case lid member 60 can be slid rightward (this state is referred to as a “released state”).

  In this way, when the case lid member 60 is slid relative to the case body member 50 so that the lid side engaging portion 64 overlaps the body side engaging portion 56, the engagement claw portion 83 and the engaging claw portion 83 are engaged. The main body side engaging portion 56 and the lid side engaging portion 64 are latched and held by engaging the mating concave portion 56c, and the sliding movement of the case lid member 60 in the right direction relative to the case main body member 50 is restricted. Therefore, the state where the case lid member 60 is attached to the case body member 50, that is, the locked state is maintained. Thereby, the main body side engaging portion 56 and the lid side engaging portion 64 can be easily coupled via the stopper member 71, and the case main body member 50 and the case lid member 60 are easily coupled and held in the closed state. can do.

  If the case main body member 50 and the case lid member 60 are coupled and held in a closed state by the unauthorized opening prevention mechanism 70, the engagement with the stopper member 71 engaged with the main body side engaging portion 56 is released. In order to open the main board case 100 (the main board assembly 30), it is necessary to cut the lid side connecting portion 66 and separate the lid side engaging portion 64 from the case lid member 60. . Therefore, after the main board case 100 is opened, the cutting trace of the lid side connecting portion 66 remains clearly, so that unauthorized opening can be detected at an early stage and fraud can be effectively suppressed. Further, in order to change the unauthorized opening prevention mechanism 70 from the released state to the locked state, the direction of the engaging claw 83 of the stopper member 71 is changed with respect to the lid side engaging portion 64 (the lid side engagement in the unlocked state). It is only necessary to take out the stopper member 71 inserted in the portion 64 and replace it in the locked state), so that the operation is very easy.

  In the present embodiment, the unauthorized opening prevention mechanism 70 has four sets of the main body side engaging portion 56, the lid side engaging portion 64, and the stopper member 71. In order to be coupled and held by the unauthorized opening prevention mechanism 70, any one stopper member 71 is inserted in a locked state, that is, with the engaging claw portion 83 protruding downward with respect to the lid side engaging portion 64. It should be. Therefore, for example, even if the main board case 100 in the closed state (locked state) is opened in order to inspect the main control board 31, the closed state (locked state) is used by using another set of the unauthorized opening prevention mechanism 70. ). Moreover, it can be confirmed how many times the main board case 100 is opened by the number of the lid-side engaging portions 64 cut out.

  Further, by forming the outer member 80 and the inner member 90 constituting the stopper member 71 with resins of different colors (for example, the outer member 80 is white and the inner member 90 is red), the case lid member 60 is Since it is molded with a transparent resin, the stopper member 71 is inserted in a locked state (the inner member 90 is on the upper side and the red color is seen through the lid side engaging portion 64) or faced upward. It can be easily identified whether it is in the unlocked state (the outer member 80 is on the upper side and white is seen through the lid side engaging portion 64). Alternatively, by displaying a character such as “lock” on the surface 94 of the inner member 90, the character can be confirmed through the transparent lid side engaging portion 64 in the locked state, and the locked state is identified. can do. At this time, of the four sets of unauthorized opening prevention mechanisms 70, the main body side engaging portion 56 can be visually confirmed as to which number is used (or what number is cut). A main body side number display portion 56e is formed on the right end side. Similarly, the lid-side number display portion 64c on which the number corresponding to the body-side number display portion 56e of the body-side engagement portion 56 is displayed is the engagement protrusion on the back side of the lid-side engagement portion 64 of the case lid member 60. It is formed in the vicinity of the portion 64b. Thereby, it can be easily determined which stopper member 71 is to be locked.

  As is clear from FIG. 11 and the like, a flange portion 94b is formed on the inner member 90 constituting the stopper member 71. When the stopper member 71 is inserted into the lid-side engaging portion 64 in the unlocked state, the surface 94 on which the flange portion 94b is formed is on the opening side of the lid-side engaging portion 64. When the stopper member 71 is taken out from the joint portion 64, a finger can be put on the flange portion 94b and can be easily taken out, so that the lock / unlock state can be easily switched.

  Further, as described above, a transparent resin material is used as the material of the main substrate case 100 (the case body member 50 and the case lid member 60). Among them, it is preferable to use an ABS resin. As a result, when the cutting operation is performed on the member as described above, the butadiene, which is a component of the ABS resin, has a rubber property, and the member is easily whitened without being cracked. The effect is easy. Further, even if the main board case 100 is forcibly opened, an effect is obtained in which the member is similarly whitened and the trace is easily left clearly. At this time, as described above, the periphery of the opening of the lid side engaging portion 64 is covered with the engaging wall portion 56b of the main body side engaging portion 56, and the engaging claw portion 83 of the stopper member 71 is on the main body side. Since it is sandwiched between the guide portions 82a and 82a inserted into the engaging grooves 56d and 56d of the engaging portion 56, it is difficult to operate the engaging claw portion 83 when trying to pry open the locked state. The lid side connecting portion 66 is configured to easily whiten when it is forced to operate.

  Finally, a method of attaching and removing the main board assembly 30 and the image control board assembly 40 from the game board 10 will be described with reference to FIG. Here, FIG. 18 is a perspective view when the main board assembly 30 is swung and tilted with respect to the game board 10.

  Main board attachment portions 15a and 15b attached to the back surface of the game board 10 are provided with U-shaped bearing portions 16a and 16b that protrude rearward and open upward. In addition, the case body member 50 of the main board case 100 is provided with mounting shafts 57a and 57b that protrude in the left-right direction from the lower portions of the left and right side portions and extend coaxially. When the main board assembly 30 is attached to the game board 10, as shown in FIG. 14, the main board assembly 30 is inclined with respect to the main board attachment portions 15a and 15b, and the attachment shafts 57a and 57b are attached to the bearing portion 16a from above. , 16b, the main board assembly 30 is swung forward about the mounting shafts 57a, 57b.

  The main board assembly 30 is fixed to the main board mounting portions 15 a and 15 b by fixing the left ny latch 36 attached to the left fixing portion 58 extending outward from the left side portion of the case body member 50 and the right side of the case lid member 60. A right ny latch 37 attached to a right fixing part 68 extending outward from the part is used. For example, as shown in FIG. 12, when the left and right ny latches 36 and 37 are pushed down on the operating portion 36a located at the upper part of the left ny latch 36, the projecting part 36b located at the lower part projects in the outer peripheral direction and the diameter thereof increases. Thus, when the operation portion 36a is pulled upward, the overhanging portion 36b is stored in the inner peripheral direction and is a locking member configured so that the diameter thereof is reduced (the right ny latch 37 has the same structure).

  As described above, when the main board assembly 30 is swung upward about the mounting shafts 57a and 57b in the state where the operation parts (36a) of the left and right ny latches 36 and 37 are pulled up, the main board mounting parts 15a and 15a, Fitting holes 17a and 17b are formed at positions facing the left and right nai latches 36 and 37 of 15b, and the overhang portions (36b) of the left and right ny latches 36 and 37 are inserted into the fitting holes 17a and 17b. In this state, when the operating portions (36a) of the left and right ny latches 36, 37 are pushed down, the overhanging portion (36b) protrudes and the main board assembly 30 is fixed to the main board mounting portions 15a, 15b.

  At this time, support projections 18a and 18b projecting rearward are formed on the main board mounting portions 15a and 15b. The support projections 18a and 18b are ribs formed on the back side of the case body member 50. In order to fit into the grid formed by 59, the load of the main board assembly 30 is configured to be supported by the support protrusions 18a and 18b in addition to the mounting shafts 57a and 57b and the left and right ny latches 36 and 37.

  As described above, when the main board assembly 30 is swung backward by swinging the bearing portions 16a and 16b around the mounting shafts 57a and 57b, a work space is provided on the rear side of the image control board assembly 40. Can be formed. Therefore, even if the main board assembly 30 is attached so as to cover the image control board assembly 40 from the rear, the image control board assembly 40 can be attached to and detached from the game board 10 using this work space. Work becomes easy. In particular, since the image control board assembly 40 and the image display device 23 may require replacement and maintenance work, the main control board assembly 30 can be easily swung in this manner, thereby improving the efficiency of these work. Can be achieved.

  In the embodiment of the present invention described above, the main effects achieved can be summarized as follows.

  First, the attachment structure of the case main body member 50 and the case lid member 60 is formed by forming a lid member attachment groove 54 having an L-shaped cross section on the side portion (side wall portion 53) of the opening of the case main body member 50. A locking projection 62 projecting outward is formed on the side wall 69 of the member 60, and the locking projection 62 is inserted into the lid member mounting groove 54 to slide the case lid member 60 to the case body member 50. Since the installation work can be done with, the structure and work becomes simple.

  Secondly, the main board case 100 in which the main control board 31 is accommodated is divided into a case main body member 50 and a case lid member 60 that can be separated from each other, thereby attaching the main control board 31 to the case lid member 60. In some cases, since the opening of the case lid member 60 can be placed on a work desk or the like with the opening facing upward, the attachment work is facilitated and the assembly efficiency is improved.

  Third, the main body side temporary fixing part 55 and the lid side temporary fixing part 63 are formed on the left end side of the case main body member 50 and the case cover member 60, and the case cover member 60 is slid relative to the case main body member 50. The case main body member 50 and the case lid member 60 can be fixed and held with a simple structure and operation by engaging the temporary fixing portions 55 and 63 when attached.

It is a front view of the pachinko machine shown as an example of the gaming machine according to the present invention. It is a rear view of the game board provided in the pachinko machine. It is a perspective view of the back side of the said game board. It is a disassembled perspective view of the main board | substrate assembly provided in the said pachinko machine. FIG. 5 is an enlarged view of a main part of FIG. 4 for explaining an attachment state of a case main body member and a case lid member constituting the main board assembly, and FIG. (B) is the figure which looked at the principal part of the case main body member from the side, (c) is a figure which shows the motion of the principal part when a case cover member is attached to a case main body member. It is a top view of the main board assembly. It is a figure which shows a case main body member, (a) is a top view, (b) is a bottom view. It is a figure which shows a case cover member, (a) is a top view, (b) is a bottom view. It is the rear view which expanded the principal part of the case cover member. It is a figure which shows a stopper member, (a) is the perspective view seen from the engagement nail | claw part side, (b) is the perspective view seen from the opposite side of (a). It is the perspective view which looked at the stopper member from a different direction. It is a figure which shows an outer side member, (a) is the perspective view seen from the engagement nail | claw part side, (b) is the perspective view seen from the opposite side of (a). It is a figure which shows an inner member, 8a) is the perspective view seen from the inner side opening part side, (b) is the perspective view seen from the other side of (a). It is a principal part enlarged view explaining when a case main body member and a case cover member are in the latching state by an unauthorized opening prevention mechanism. It is a principal part enlarged view explaining when a case main body member and a case cover member are in an open state by an unauthorized opening prevention mechanism. It is XVI-XVI sectional drawing of FIG. It is XVII-XVII sectional drawing of FIG. It is a perspective view of the back view of the said game board, Comprising: It is a figure which shows the state which rock | fluctuated the main board assembly.

Explanation of symbols

31 Main control board (board)
50 Case body member (main body member)
54 Lid member mounting groove 55 Main body side temporary fixing portion (fixing mechanism)
60 Case lid member (lid member)
62 Locking projection 63 Lid side temporary fixing part (fixing mechanism)
100 Main board case (board case)

Claims (3)

A substrate case for accommodating a substrate therein,
A body member in which a lid member mounting groove that is a groove having an L-shaped cross section is formed in the opening;
The lid member is formed with a locking projection that is a projection protruding from the side of the opening,
The locking projection is inserted into the lid member mounting groove so that the opening of the body member and the opening of the lid member are aligned, and the lid member is slid and attached to the body member. A substrate case characterized by being in a closed state. The substrate is configured to be inserted from the opening and attached to the inside of the lid member,
The substrate case according to claim 1, wherein the lid member is attached to the main body member in a state where the substrate is attached. The substrate case according to claim 1, further comprising a fixing mechanism that holds the closed state when the lid member is attached to the main body member.

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