JP2006198257A - Circuit board housing case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an illegal behavior carried out by inserting a foreign matter such as a wire from a gap between an opening for a connector and the connector. <P>SOLUTION: A circuit board housing case consists of a front case 50, a rear case 51 and a cover 52. At the periphery part of an opening 55 provided at the front case 50, a peripheral wall 56 provided with an fastening claw 57 is provided. In the case of electrically connecting a game control circuit board 40 with another apparatus or another circuit board, a cable-side connector 70 provided at the end of a cable 65 is connected to a board-side connector 49, and thereafter the cover 52 assembled to the cable 65 is slid to the cable-side connector 70. The cover 52 is provided with a housing part for housing the peripheral wall 56 and when the peripheral wall 56 is inserted to the housing part, a wall surface 57b constituting the fastening claw 57 and an inner wall surface 67g constituting the housing part abut on each other. Thus, the opening 55 of the front case 50 is covered with the cover 52, and the cover 52 is fixed to the front case 50. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a circuit board storage case for storing a circuit board such as a control circuit board.

  Pachinko machines such as pachinko machines and slot machines that are installed and used in game halls such as pachinko parlors are given a certain value to game media such as pachinko balls and medals, and the game media acquired by playing games It can be exchanged for various prizes. The gaming machine includes various drive devices such as a lamp device and a sound generation device that are operated based on supply of game media, and a control circuit device including a control circuit board that controls these drive devices. The game is filled with interest by appropriately operating these when playing the game. In recent years, a reel display device capable of variably displaying predetermined identification information (symbol) and a variable symbol display device such as a liquid crystal image display device have been incorporated, and after the identification information has been varied when a predetermined condition is satisfied. The mainstream is to operate the variable symbol display device so as to stop display. These devices are controlled by a control circuit board.

  A control circuit board provided in a recent gaming machine is generally one in which a CPU (Central Processing Unit) provided on the board performs electronic control according to a control program. The control program is stored as data in a memory chip such as a mask ROM (Read Only Memory) mounted on the substrate, and the CPU sequentially reads out and executes the control program data from the memory chip according to the gaming state. Control is done by

  In addition, the gaming machine installed in the amusement hall is managed so that the control program is not tampered with, and the control circuit board is stored in the board storage case, and the board storage case is stored in the casing or a predetermined member of the main body base. Consideration has been made so that the control program is not tampered with by, for example, assembling it into the system (Patent Document 1). Furthermore, the memory chip storing the control program data should not be tampered with and altered by improperly replacing the control program by attaching a seal sticker, etc., so that it cannot be easily removed from the mounted substrate. Consideration has been made. Such high security is required for gaming machines.

On the other hand, the control circuit board stored in the board storage case is generally electrically connected to other control circuit boards and driving devices by cables or the like. Thus, when electrically connecting with a cable or the like, it is necessary to connect the board side connector provided on the control circuit board and the connector provided at the end of the cable. An opening (hereinafter referred to as a connector opening) is formed. The opening has a size provided with a predetermined clearance so that the work for connecting the board-side connector and the cable-side connector can be easily performed.
JP 2001-276388 A

  However, when the opening is formed by providing the clearance as described above, a gap is generated between the opening and the connector, and a foreign object such as a wire is inserted into the gap and the control circuit stored in the circuit board case. There is a problem that an illegal act of short-circuiting the substrate is performed. For example, if the clearance is reduced, it is possible to prevent such an illegal act, but the workability when connecting the board side connector of the control circuit board housed in the circuit board case and the cable side connector is improved. The problem is that it will be worse, and it is not just a matter of reducing the clearance.

  The present invention has been made in order to solve the above-described problem. Even when the clearance between the connector opening and the connector is increased, a foreign object such as a wire is inserted through the gap between the connector opening and the connector. It is an object of the present invention to provide a circuit board storage case capable of preventing an action.

  In order to achieve the above object, the circuit board storage case of the present invention has a structure in which the circuit board is accommodated in the case, and the cable side connector is connected to the board side connector provided on the circuit board. In a circuit board storage case having a connector opening through which the connector is inserted, a peripheral wall provided at the peripheral edge of the connector opening and projecting toward the outside of the case, and a locking claw provided on the peripheral wall And a cover that has an insertion hole through which a cable having the cable-side connector is inserted and covers the connector opening by engaging with the locking claw.

  Moreover, it is preferable that the said cover is provided with the insertion part by which the said surrounding wall is inserted in the inside, and the engaging part by which the said engaging claw is engaged with this insertion part is provided.

  Moreover, it is preferable that the peripheral part of the said connector opening is equipped with the isolation wall which protrudes toward the said circuit board accommodated.

  According to the circuit board storage case of the present invention, when the circuit board is stored inside the case and the cable side connector is connected to the board side connector provided on the circuit board, the connector for the cable side connector is inserted. In a circuit board storage case having an opening, a peripheral wall provided to protrude toward a peripheral portion of the connector opening and to the outside of the case, a locking claw provided on the peripheral wall, and the cable side connector And a cover that covers the connector opening by engaging with the locking claw, so that the gap formed between the connector opening and the connector is provided. Further, it is possible to prevent an illegal act of inserting a foreign object such as a wire to short-circuit the circuit board stored in the circuit board storage case. Also, with this configuration, it becomes possible to increase the clearance between the opening and the connector, and connect the board-side connector and the cable-side connector, or connect the board-side connector and the cable-side connector. It is also possible to improve workability when canceling.

  Further, the cover includes an insertion portion into which the peripheral wall is inserted, and an engagement portion with which the engagement claw is engaged is provided at the insertion portion. If the size of the part is slightly smaller than the size of the peripheral wall, it will be difficult to assemble and remove the cover, so the effect of suppressing unauthorized actions such as removing the cover and illegally replacing the circuit board There is.

  In addition, since the peripheral edge of the connector opening is provided with an isolation wall protruding toward the circuit board to be stored, the board-side connector exposed from the connector opening and other circuits disposed on the circuit board Even if a foreign object such as a wire can be inserted from a gap generated between the cover and the cable, it is possible to isolate the component parts, and other circuits arranged on the control circuit board by this peripheral wall The arrival of foreign objects such as wires can be prevented up to the component parts.

  As shown in FIG. 1, the slot machine 2 includes a first reel 10 and a second reel, which will be described later, inside a housing 3 including a storage box 4 and a front door 5 provided on the front surface of the storage box 4. 11, the third reel 12, a power supply device 35 (see FIG. 2), a hopper device 36 (see FIG. 2), and the like.

  The front door 5 is composed of two doors, an upper door 6 and a lower door 7. A display window 8 is provided on the upper door 6. A first reel 10, a second reel 11, and a third reel 12 are disposed at the back of the display window. As is well known, on the outer peripheral surfaces of the first reel 10, the second reel 11, and the third reel 12, for example, a plurality of types of symbols are arranged in a plurality. When the first reel 10, the second reel 11, and the third reel 12 are stopped, three symbols of the first reel 10, the second reel 11, and the third reel 12 are displayed from the display window 8, and the symbols are displayed through the display window 8. Nine symbols are displayed.

  Various operation buttons such as a single bet button 20, a MAX bet button 21, and a payout button 22 that are operated at the start of the game are provided on the upper portion of the lower door 7.

  The single bet button 20 is a button that is pressed when a game is played using one inserted medal. The MAX bet button 21 is pressed when a game is played using the maximum number of used medals (for example, three). The inserted medals include medals that have been credited in addition to directly inserting medals from the medal insertion slot 28.

  In the vicinity of these buttons, a start lever 23, a first stop button 25, a second stop button 26, and a third stop button 27 are provided. The start lever 23 is operated when a game is executed. The first stop button 25 is a button that is pressed when stopping the rotating first reel 10. Similarly, the second stop button 26 and the third stop button 27 are buttons that are pressed when the rotating second reel 11 and the third reel 12 are stopped.

  The lower door 7 is provided with a medal slot 28 for inserting medals when playing a game. A selector is incorporated in the back of the medal insertion slot 28, and inappropriate medals are discharged to the medal tray 30 through the medal payout opening 29. In addition, when the medal is inserted at an improper timing such as when the selector is inserted in the middle of a game or in a state where various operation buttons are pressed, the selector receives the inserted medal as the medal tray 30. To discharge. In addition, since the number of medals to be inserted prior to the start of the game is limited to 1 to 3, medals inserted after the fourth one are discharged to the medal tray 30 when the credit function is not used.

  On the other hand, when the credit function is on, medals inserted in the fourth and subsequent sheets are detected by a medal sensor (not shown) provided in the selector, and then, for example, up to 50 sheets are placed inside the slot machine 2. Stored. When this credit function is used, a medal insertion operation is performed by operating the one-bet button 20 or the MAX bet button 21 described above, and the bet number is sequentially subtracted from the credit number. Further, when a winning is obtained as a result of the game, a medal that becomes a payout is also credited, and a medal credited when the payout button 22 is operated is paid out to the medal tray 30.

  As shown in FIG. 2, inside the storage box 4 constituting the housing 3, a power unit 35, a hopper device 36, a reel unit 37 including a first reel 10, a second reel 11, a third reel 12, and the like. Is assembled. In FIG. 2, a plurality of symbols arranged on the outer periphery of the first reel 10, the second reel 11, and the third reel 12 are omitted in order to prevent the drawing from being complicated. The power supply device 35 is for supplying power to the slot machine 2.

  The hopper device 36 is provided in the lower part of the storage box 4. The hopper device 36 operates when a game is obtained in the slot machine 2 and a winning is obtained, and medals for the winning are continuously paid out to the medal tray 30. A storage tank 37 for storing medals for payout is provided at the top of the hopper device 36. In the storage tank 37, medals inserted from the medal insertion slot 28 are stored. The overflow storage box 38 stores medals discharged from the storage tank 37 when the number of medals stored in the storage tank 37 of the hopper device 36 exceeds a predetermined amount.

  A game control circuit board (circuit board) 40 is disposed in an upper part of the storage box 4 in a state of being stored in a circuit board storage case 41. As shown in FIG. 3, the game control circuit board 40 includes a circuit 45 such as a CPU (Central Processing Unit) 46, a ROM (Read Only Memory) 47, and a RAM (Random Access Memory) 48 on a circuit board 45 provided with a circuit pattern. It has a control circuit formed by assembling components. In addition to this, a board-side connector 49 for electrical connection with other control circuit boards disposed in the slot machine 2 and other devices constituting the slot machine 2 such as the power supply device 35 is arranged. It is installed. Hereinafter, a case where one board-side connector 49 is provided on the game control circuit board 40 will be described.

  As shown in FIGS. 3 and 4, the circuit board storage case 41 includes a front case 50, a rear case 51, and a cover 52. The front case 50 has a substantially box shape with a rear surface opened. An opening (connector opening) 55 is formed in the front lower portion of the front case 50. The opening 55 is provided to expose the board-side connector 49 provided on the game control circuit board 40.

  A substantially cylindrical peripheral wall 56 is provided at the periphery of the opening 55 so as to protrude from the front surface of the front case 50. A locking claw 57 is provided at the tip of the peripheral wall 56 over the entire periphery of the peripheral wall 56. The locking claw 57 is formed so as to become thinner toward the tip of the peripheral wall 56. When the width in the longitudinal direction of the peripheral wall 56 is D1, the maximum width D3 of the locking claw 57 is provided to be D1 + 2D4 (D4: the width of the wall surface 57b orthogonal to the peripheral wall 56). When the width in the short direction of the peripheral wall 56 is D2, the maximum width D5 of the locking claw 57 is provided to be D2 + 2D4. The inner wall surface of the peripheral wall 56 is provided so as to be flush with the inner wall surface of the opening 55.

  Further, a substantially cylindrical peripheral wall (separation wall) 58 that protrudes to the rear surface side of the front case 50 is provided at the peripheral portion of the opening 55. The peripheral wall 58 is disposed on the board-side connector 49 provided on the game control circuit board 40 and the game control circuit board 40 when the game control circuit board 40 is accommodated by the front case 50 and the rear case 51. It is provided to isolate other circuit components. The inner wall surface of the peripheral wall 58 is provided so as to be flush with the inner wall surface of the opening 55.

  The rear case 51 is formed in a box shape whose front surface is opened. The game control circuit board 40 is assembled to the opened portion with, for example, screws. The rear case 51 is assembled with the front case 50 so that the opened part faces the opened part of the front case 50. The method of assembling the front case 50 and the rear case 51 is, for example, by providing an engagement hole on one of the front case and the rear case and an engagement claw on the other, and connecting the engagement hole and the engagement claw. By engaging, the front case 50 and the rear case 51 can be assembled together, or the front case 50 and the rear case 51 can be assembled together using an appropriate method such as fixing with screws. is there.

  As shown in FIG. 5, the cover 52 is provided to cover the opening 55 provided in the front case 50 described above. The cover 52 is made of, for example, plastic such as vinyl chloride, and is used for electrical connection with the game control circuit on the game control circuit board 40 and other control circuits or devices constituting the slot machine 2. The cable 65 is assembled. For example, the cover 52 has a shape in which a substantially rectangular parallelepiped and a truncated pyramid are integrally formed. Through holes 66 a to 66 m through which the cables 65 are inserted are formed from the upper surface to the bottom surface of the cover 52. These through-holes 66a to 66m are shaped to match the cross-sectional shape of the cable. In this embodiment, an example in which a through hole is provided corresponding to each of the cables will be described. However, the present invention is not limited to this, and the shape of the cable 65 is such that the through hole has a long hole shape. It is possible to form them together. In these cases, it is preferable that the size of the cross section perpendicular to the central axis of the through hole is smaller than the cross section perpendicular to the longitudinal direction of the cable 65.

  As shown in FIG. 6, a storage portion (insertion portion) 67 is provided in the approximate center of the lower surface of the cover 52. The storage portion 67 is a space in which the peripheral wall 56 and the locking claw 57 provided in the front case 50 described above are stored. A space 67a above the storage portion 67 has a substantially rectangular parallelepiped shape, and a space 67b at the bottom thereof is formed in a truncated pyramid shape. A width D7 in the longitudinal direction of the space 67a is formed to satisfy D7 ≦ D1. Further, the width D8 in the short direction of the space is formed so as to satisfy D8 ≦ D2.

  Note that the side wall surfaces 67c, 67d, 67e, 67f forming the truncated pyramid-shaped space 67b are composed of inclined surfaces having the same inclination as the inclined surfaces 57a of the locking claws 57. By inserting a locking claw 57 provided on the peripheral wall 56 into the truncated pyramid-shaped space 67b, a wall surface 57b constituting the locking claw 57 and a wall surface forming a truncated pyramid-shaped space 67b ( (Engagement portion) 67g abuts, and the cover 52 is engaged with the front case 50. The maximum width D9 in the longitudinal direction of the truncated pyramid-shaped space 67b is formed such that D9 ≧ D3, and the maximum width D10 in the short direction is D10 ≧ D5.

  Next, the operation of this embodiment will be described. First, as shown in FIG. 3, after the game control circuit board 40 on which circuit components are arranged is assembled to the rear case 51, the front case 50 and the rear case 51 are assembled together. As shown in FIG. 7, when the front case 50 and the rear case 51 are assembled together, the board-side connector 49 of the game control circuit board 40 housed therein is inserted into the peripheral wall 58 of the front cover 50. The The peripheral wall 58 is provided so as to protrude to the rear surface side of the front cover 50, and the front end of the peripheral wall 58 is held in a state of being in contact with the game control circuit board 40. Thereby, the board-side connector 49 is isolated from other circuit components arranged on the game control circuit board 40. The game control circuit board 40 is disposed above the storage box 4 in a state of being stored in the front case 50 and the rear case 51.

  After that, as shown in FIGS. 7 to 9, the game control circuit board 40 is stored in another device disposed in the storage box 4 or another board storage case in order to function as the slot machine 2. It is electrically connected to a control circuit board or the like. For example, when an electrical connection is made using the cable 65 or the like, the cable side connector 70 provided at the end of the cable 65 is connected to the board side connector 49 of the game control circuit board 40. Since the cover 52 is assembled to the cable 65, after the cable side connector 70 and the board side connector 49 are connected, the cover 52 is slid toward the cable side connector 70 (in the F direction in FIG. 7).

  When the cover 52 is slid toward the cable-side connector 70, the locking claw 57 is inserted into the space 67 a of the storage portion 67 provided in the cover 52. The locking claw 57 has a shape that narrows toward the tip, and the maximum widths D3 and D5 of the locking claw 57 are larger than the widths D7 and D8 of the space 67a of the storage portion 67 of the cover 52, respectively. Since it is widely formed, the cover 52 is distorted in the G direction in FIG. 8 by inserting the locking claw 57 into the space 67 a of the storage portion 67. And if the latching claw 57 is inserted to the space 67b of the accommodating part 67, the cover 52 will return to an original shape with the restoring force. At this time, the inner claw 67g constituting the space 67b of the storage portion 67 and the wall surface 57b of the engagement claw 57 come into contact with each other, so that the locking claw 57 is engaged with the cover 52.

  When the locking claw 57 is engaged with the cover 53, the opening 55 of the front case 50 is covered with the cover 52. For example, by forming the inner diameters of the through holes 66a to 66m of the cover 52 smaller than the outer diameter of the cable, the end portions of the through holes 66a to 66m are pulled against the sliding direction. Thereby, generation | occurrence | production of the clearance gap between the through-holes 66a-66m and the cable 65 can be prevented. For example, a foreign object such as a wire cannot be inserted from the gap between the cable 65 and the cover 52 or from the gap between the cover 52 and the peripheral wall 56, so the circuit on the game control circuit board 40 is short-circuited using the wire or the like. Etc. can be prevented. Even if a foreign object such as a wire can be inserted from the gap between the cable 65 and the cover 52 or from the gap between the cover 52 and the peripheral wall 56, the peripheral wall 58 protruding rearward of the front case 50 Since the connector 49 and the other circuit components disposed on the game control circuit board 40 are isolated from each other, an illegal act on the circuit components can be prevented using a wire or the like.

  When the cable-side connector 70 is removed from the board-side connector 49, first, the cover 52 is disengaged between the locking claw 57 and the cover 52 using a tool or the like, and is slid in the direction G in FIG. Let Thereafter, the connection between the cable side connector 70 and the board side connector 49 is released. As a result, for example, even if the gap between the board-side connector 49 and the peripheral wall 56 of the front case 50 is increased, the opening 55 is covered with the cover 52, and the cable-side connector 70 can be removed and attached. be able to.

  In addition, as shown in FIG. 10, when the clearance gap between the through-holes 67a-67m provided in the cover 52 and the cable 65 is made, the approach prevention piece 80 is provided in the inner wall surface of the through-holes 67a-67m. Is also possible. In this case, when the cover 52 is slid toward the front case 50, the intrusion prevention piece 80 slides while slidingly contacting the cable 65, and the gap between the through hole and the cable can be eliminated. Thereby, it can prevent inserting foreign materials, such as a wire, from the clearance gap between the cable 65 and the through-holes 67a-67m.

  In the present embodiment, an example in which one board-side connector is provided on the game control circuit board is taken up, but it is not necessary to be limited to this, and for a game control circuit board in which a plurality of board-side connectors are arranged, It is possible to use the present invention. Moreover, although the example of the game control circuit board was taken up, it is not necessary to limit to this, and it is possible to implement this invention if it is a control circuit board accommodated in a board | substrate storage case.

  In the present embodiment, the inner wall surfaces of the peripheral walls 56 and 58 are provided so as to be flush with the inner wall surface of the opening 55. However, the present invention is not limited to this, and the peripheral walls 56 and 58 are formed on the peripheral edge of the opening 55. The inner wall surfaces of the peripheral walls 56 and 58 need not be provided so as to be flush with the inner wall surface of the opening 55.

  In the present embodiment, the peripheral wall projecting toward the circuit board to be accommodated is provided at the peripheral edge of the opening of the front case, but it is not necessary to limit to this, and the engagement between the cover and the locking claw is reliable. And there is no gap between the through hole provided in the cover and the cable inserted through the through hole, or the gap is such that no foreign matter can be inserted into the gap even if there is a gap. It is not necessary to provide this peripheral wall.

  In this embodiment, an example of a slot machine is taken as an example of a gaming machine. However, the present invention is not limited to this, and the present invention can be implemented in a pachinko machine or other gaming machines.

It is a perspective view which shows the external appearance of the slot machine of this invention. It is a perspective view which shows the structure inside a slot machine. It is a perspective view which shows the structure of a game control circuit board and a circuit board storage case. It is a perspective view which expands the part of A shown in FIG. 3, and shows a part of opening vicinity from a cross section. It is a perspective view which shows the structure of the upper surface of a cover. It is a perspective view which shows the structure of the bottom face of a cover. It is sectional drawing which shows the opening vicinity provided in the front case at the time of inserting a cable side connector in a board | substrate side connector. It is sectional drawing which shows the opening vicinity provided in the front case when a cover is slid toward the front case. It is sectional drawing which shows the opening vicinity provided in the front case when a cover is assembled | attached to the front case. It is sectional drawing which shows the opening vicinity provided in the front case when an approach prevention piece is provided in the inner wall surface of the opening provided in the cover.

Explanation of symbols

2 slot machine 40 game control circuit board 41 circuit board storage case 50 front case 51 rear case 52 cover 55 opening (opening for connector)
56 Perimeter wall 57 Locking claw 58 Perimeter wall (isolation wall)
66a-66m Through-hole 67 Storage part (insertion part)
67g Wall surface (engagement part)

Claims (3)

In the circuit board storage case having a connector opening through which the cable side connector is inserted when the circuit board is stored inside the case and the cable side connector is connected to the board side connector provided on the circuit board.
A peripheral wall provided to protrude toward the outside of the case at the peripheral edge of the connector opening;
A locking claw provided on the peripheral wall;
A circuit board storage case, comprising: a cover that has an insertion hole through which a cable having the cable-side connector is inserted, and covers the connector opening by engaging with the locking claw.   2. The circuit according to claim 1, wherein the cover includes an insertion portion into which the peripheral wall is inserted, and an engagement portion with which the engagement claw is engaged is provided in the insertion portion. PCB storage case. The circuit board storage case according to claim 1, further comprising an isolation wall projecting toward the circuit board to be stored at a peripheral edge of the connector opening.

Images