JPH04325174A - Circuit box of pinball machine - Google Patents

Abstract

PURPOSE:To provide the circuit box capable of shielding a circuit board and detecting easily an illegal alteration of the circuit board. CONSTITUTION:A game control circuit box 31 is constituted of the transparent upper case 44 and the lower case 45, and in the inside of the upper case 44, a shielding member 46 provided with an observation port 51 is provided additionally, and on the rear side of the lower case 45, a shielding plate 59 is provided additionally so as to be freely attachable and detachable, so that the inside can be viewed from the observation port 51 and the rear side of the lower case 45, and a second connector 65 of a relaying part 43 being freely attachable and detachable to and from a base frame member 42, and a first connector 48 of a circuit board 30 are freely attachable and detachable.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko machine, and more particularly to a circuit box housing control means for controlling various electronic devices installed in the pachinko machine or collecting various data.

0002

[Prior Art] As is well known, pachinko machines in recent years have become increasingly computerized, including controlling the accessories, firing balls, discharging and replenishing prize balls, displaying various information, emitting sound effects, etc. The collection of various data such as the number of pitches driven in and the number of pitches thrown out is performed by electronic control means centered on a microprocessor. This electronic control means is usually housed in a circuit box that can be electromagnetically shielded to avoid the influence of external noise, and is further sealed to prevent unauthorized modification such as changing the jackpot probability.

Various types of circuit boxes as described above have been developed. For example, in Japanese Patent Laid-Open No. 2-142580, a visible window is formed with a clear plate attached so that the inside can be seen through, and modifications can be made through this visible window. There is a device that allows you to check the presence or absence of.

[0004] Furthermore, in order to facilitate the work of attaching the circuit box to the game board and the work of connecting the electronic control means inside the box to the electrical equipment outside the box, a mounting member having a connector means is fixed to the game board. In addition, a circuit box is also provided with a connector means, and when the circuit box is attached to a mounting member, both connector means are electrically connected. It has been proposed in Publication No.-122681 and the like.

[0005]

[Problems to be Solved by the Invention] However, in the conventional structure of a circuit box in which a visible window is formed, a blind spot of the visible window occurs, and modifications made within this blind spot or on the back side of the circuit board cannot be discovered. In addition, with conventional connector means, poor contact may occur during connection, or accidents may occur where the circuit box is removed while the power is connected and the circuit board is damaged. It wasn't.

[0006]

[Means for Solving the Problems] The present invention has been proposed in view of the above, and provides a pachinko machine that controls various electrical devices using electrical control means, including a circuit board constituting the electrical control means. , the circuit box is housed in a circuit box having a shielding means, the circuit box is provided with a transparent part covering at least almost the entire surface of the flat plate part so that the inside can be seen through, and the circuit box is fixed to the first connector provided on the circuit board and the game board. By electrically connecting a second connector provided on the mounting member, the mounting member and the circuit box can be detachably attached.

[0007]

[Operation] By housing the circuit board in a circuit box equipped with a shielding means, the influence of external noise is blocked, and the first connector on the circuit box side and the second connector on the mounting member side are electrically connected. By doing so, the circuit box and the mounting member can be detachably attached.

[0008]

[Embodiment] The present invention will be described below with reference to the drawings. FIG. 1 is a front view of a pachinko machine 1, in which one side of a frame-shaped front frame 2 having a window portion is attached to an outer frame 3. A metal frame 4 is provided on the window portion, a glass frame 5 equipped with glass is pivotally attached to the upper part of the metal frame 4 so as to be openable and closable, and the outer frame 3 and the glass frame 5 is locked with the locking device 6. Further, an upper saucer set 9 consisting of a front plate 8 and the like provided with an upper saucer 7 is provided in the lower part of the glass frame 5, and a lower saucer set 11 including a lower saucer 10 is provided in the lower part of the front frame 2. Then, the game board 12 is faced from behind the window so as to cover the window. A game section 14 surrounded by a guide rail 13 is formed on the surface side of the game board 12, and inside the game section 14 there is a variable display device 15, a variable prize winning device 16, a starting port 17, various prize winning devices 18..., a windmill, etc. 19…,
Alternatively, various indicator lights 20, etc. are provided, and an out port 21 is provided at the lowest position. Furthermore, an operating handle 22 is provided on the front side of the set of lower trays 10 for adjusting the flight distance of the ball hit into the game section 14.

On the other hand, FIG. 2 is a rear view of the front frame 2. On the back side of the front frame 2, there is a rear plate 23 (mechanism plate) made of a plate-shaped metal plate that houses the game board 12. attached,
A mechanism frame such as a base body 24 is provided on the back side of the rear plate 23. Note that this mechanism frame is a general term for members for attaching the main components on the back side of the pachinko machine 1 to the back side of the front frame 2. Therefore, the above rear plate 2
A movable frame body 26, which is a part of the mechanism frame body, is hinged to the mechanism frame body 3 via a hinge 25 so as to be openable and closable. This movable frame body 26 is a separable member consisting of an upper frame body part 26a and a lower frame body part 26b, and a prize ball dispensing device 27 is formed in the upper frame body part 26a. A prize ball release path 29 and the like are formed. The movable frame body 26 is made of a conductive member, and the static electricity charged on the ball is transferred to the rear plate 23 via the hinge 25.
I'm missing out.

[0010] On the back side of the game board 12, there is a game control circuit board 3 formed with a game control circuit that mainly controls the game board 12 side, such as a variable display device 15 and a variable prize winning device 16.
A game control circuit box 31 containing a circuit board 30 (hereinafter referred to as a circuit board 30) is removably installed. Further, the lower frame body portion 26b is provided with a safe ball passage, a safe ball detection device, etc., and a ball collection cover 32 facing the rear of the game board 12 is provided on both frame body portions 26a, 26b. A fixed frame body 33 is provided on the rear plate 23 at a lower position separated from both frame body parts 26a and 26b, and a ball launching device, winning ball processing device, prize ball dispensing device 27, etc. are mainly installed on the side of the pachinko machine main body. A main body control box 34 is provided to accommodate a circuit board on which a main body control circuit for performing control processing is formed. Furthermore, below the fixed frame 33, there are provided a drive section of the batted ball launcher and a gutter 35 for guiding balls overflowing from the upper tray 7 to the lower tray 10. Incidentally, this downflow gutter 35 is made of a conductive material, and the screw 36
It is preferable that the static electricity charged on the bulb be released to the rear plate 23 by fixing the bulb to the rear plate 23 at a position.

The above-mentioned base body 24 is provided with an upper tank 37 for storing prize balls to be paid out to the player, and a prize ball guide gutter 38 is removably provided below the upper tank 37, and the above-mentioned upper frame Prize ball guide path 2 housed within the body portion 26a
Connect to 8. Therefore, the balls in the upper tank 37 flow from the prize ball guiding trough 38 to the prize ball guiding path 28, and the balls in the prize ball dispensing device 27
The balls are paid out from the prize ball outlet 39 to the upper tray 7 through the upper tray inlet 40 provided in the rear plate 23.

In the present invention, as described above, the circuit box 31 is removably fixed to the game board 12 via the mounting member 41.
As shown in FIG. 2, a mounting member 41 is constituted by a base frame member 42 fixed to the game board 12 and a relay member 43 removably provided on the base frame member 42. There is.

As shown in FIGS. 3 to 5, for example, the circuit box 31 consists of an upper case 44 shaped like a deep dish and a lower case 45 shaped like a shallow dish. It is made of transparent synthetic resin. Further, in order to impart an electromagnetic shielding effect to the circuit box 31, a shield member 46 made of a conductive member, such as a metal plate, is attached inside the upper case 44 as a shielding means. Specifically, in the illustrated embodiment, the upper case 44
When attached to the game board 12, the shape in the rear view (the front view when looking at the pachinko machine 1 from the front) is a vertically elongated substantially rectangular shape, and each side wall portion extends from the middle to the flat plate portion 44a.
The flat plate part 4 passes through the slope part 44b whose diameter is slightly reduced toward
Connects to 4a. Note that a plurality of ventilation holes 47 are provided in the slope portion 44b for heat radiation. Further, one side wall portion is provided with a cutout portion 49 through which a first connector 48, which will be described later, faces. Furthermore, an inward locking pawl 44' is provided at an appropriate position on the inner edge of the side wall portion to lock the end edge of the shield member 46 fitted into the upper case 44.

The shield member 46 may be made of any material as long as it has conductivity as described above, but a metal plate such as an iron plate or an aluminum plate is preferable from the viewpoint of workability and cost. It is molded into a similar shape and fitted onto the inner surface of the upper case 44. The shield member 46 also has a ventilation hole 5 at a position corresponding to the ventilation hole 47 of the upper case 44.
0 is set. Further, the bottom plate portion of the shield member 46 has an observation port 51 opening in the shape of a cutout, and this observation port 51 forms a see-through portion that covers almost the entire surface of the flat plate portion 44a of the circuit box 31. Further, a support portion 52 for supporting the circuit board 30 is formed on the inner surface side of the short side of the shield member 46,
Screw holes with female threads are formed at the four corners. In this embodiment, the support portion 52 and the screw hole are formed by welding an auxiliary metal fitting 52' having a substantially L-shaped cross section to the inner surface of the shield member 46. A part of the auxiliary metal fitting 52' is formed to be able to electrically contact the ground bus bar provided on the circuit board 30, and when in a fixed state, the ground bus bar of the circuit board 30 and the shield member 46 are electrically connected. .

On the other hand, the lower case 45 is also made of transparent synthetic resin, and is provided with a notch-shaped connector insertion portion 54 for the first connector 48 on one side of the flat main body portion 53, and has a notch-shaped connector insertion portion 54 on the inner side (
A rib piece 55 that fits inside the upper case 44 is raised on the periphery of the inner surface of the circuit box 31. Note that this rib piece 55 is provided with a notch as necessary. Furthermore, mounting portions 56 are provided at the four corners of the flat main body portion 53, which are formed thick and have mounting holes (see FIG. 8).

Further, the lower case 45 is provided with guide bosses 57 and guide pieces 58 for positioning and guiding the circuit box 31 with respect to the mounting member 41, which will be described later. The guide boss 57 is formed by extending one of the attachment parts 56 of the lower case 45 into a cylindrical shape, and the guide piece 58 is formed into a bar-like protrusion at the lower part of the lower case 45. is provided with a hook 58a.

A flat shield plate 59 for shielding the back side of the circuit board 30 is detachably attached to the outer surface side of the flat main body portion 53 of the lower case 45 (the surface that becomes the outside of the circuit box 31). Provided for. That is, a relatively low edge piece 60 having a thickness approximately equal to the thickness of the shield plate 59 is provided on the outer peripheral edge of the lower case 45 . A locking piece 61 capable of locking the shield plate 59 is provided at an appropriate position of the edge piece 60, for example, on a part of the edge piece 60 formed along the long side where the connector insertion portion 54 is not provided, and a locking piece 61 that can lock the shield plate 59 is provided. A locking member 62 is provided at the corner on the 54 side, and the shield plate 59 is fixedly attached by the locking piece 61 and the locking member 62. The locking member 62 is a member having a substantially L-shaped cross section and having a finger hook portion 62a and a pressing portion 62b, and has a screw 63 inserted through a mounting hole to securely attach the lower case 45 and the upper case 44.
is screwed into a screw hole of the auxiliary fitting 52' via a washer 62', and is rotatably attached to the lower case 45. Although not shown, the pressing portion 62 of the locking member 62
b is provided with a locking protrusion, a locking recess or a locking hole corresponding to the locking protrusion is provided in the shield plate 59, and the locking member 62 is adjusted to a position where the locking member 62 is perpendicular to the edge of the shield plate 62 and pressed. It is supposed to stop.

A shield plate 5 is attached to the lower case 45 as described above.
9, one side of the shield plate 59 is inserted under the locking piece 61 and locked, and the locking member 62 is rotated to press the shield plate 59 with the pressing part 62b. It is. That is, the shield plate 59 is fixed in the same manner as the back cover of the picture frame is fixed. The screws 63 serve not only to fix the lower case 45 and the upper case 44, but also to electrically conduct each member.
3 into the screw hole, the shield member 46 of the upper case 44 is brought into close contact with the ground bus bar of the circuit board 30, and the shield plate 59 is connected to the locking member 62 and the screw 6.
3 to the shield member 46, and eventually the shield plate 59 is also electrically connected to the ground bus bar of the circuit board 30. Then, the circuit board 30 is connected to the structural material of the island of the pachinko parlor through the ground wire.

Although not shown in the drawings, a stopper piece is provided near the first connector 48 on the outer surface of the lower case 45 to ensure a distance from the relay member 43 (relay terminal board) to be described later. It has been done.

The circuit board 30 housed in the circuit box 31 as described above forms a game control circuit, etc., and the circuit board 30 is provided with, for example, a female multi-pin connector as the first connector 48. This connector has a release lever 64, and the release lever 64 has rotating parts 64a at both ends pivoted to the connector base part 48a.
4, the rotating portion 64a acts to push out a male connector as a second connector 65 provided on a relay terminal board, which will be described later. In addition, the release lever 64
A protrusion 66 is formed in the first
It faces the front of a power connector 67 provided adjacent to the connector 48, and the release lever 64 cannot be operated unless the power connector 67 is removed. Therefore, when power is being supplied to the game control circuit, etc., the first connector 48 cannot be removed from the second connector 65 of the mounting member 41, which will be described later, and the game control circuit is electrically disconnected. Protecting.

The circuit box 31 is detachably attached to the game board 12 via a mounting member 41, but in this embodiment, the mounting member 41 is composed of a base frame member 42 and a relay member 43. . For example, as shown in FIG. 4, the base frame member 42 is used to raise the circuit box 31 from the game board 12 and attach it so as not to interfere with other members, such as the set plate 69 that forms the winning ball passage 68. , a leg wall 71 is erected from the outer edge of the holding plate 70, which is formed into a substantially rectangular shape in front or rear view, toward the game board 12, and a flange-shaped mounting piece 72 is attached to the tip of the leg wall 71. will be established. A positioning means such as a positioning boss 73 is protruded from the mounting piece 72 at an appropriate position, and the positioning boss 73 is connected to the game board 12.
The position is regulated by fitting into a positioning recess 74 provided at an appropriate position. In the illustrated embodiment, the upper positioning recess 74a is formed in the shape of a long hole to enable fine adjustment. Further, mounting holes 75 are opened at appropriate positions in the mounting piece 72, and screws or the like passed through the mounting holes 75 are fixed to the game board 12. Further, the leg wall portion 71 is provided with a notch or a notch groove for passing the wiring, if necessary. Note that the leg wall portion 71 in the illustrated embodiment is formed on the left side, the bottom surface, and the left half of the top surface when viewed from the back side of the pachinko machine 1, and the right side and the upper right half are opened. It is positioned so as to straddle the set plate 69 at some points.

The holding plate section 70 is provided with a holding section 76 for detachably holding a relay member 43, which will be described later. According to the illustrated embodiment, this holding part 76 consists of an upper holding part 76a horizontally suspended near the upper edge, and a lower holding part 76b horizontally suspended at a position slightly raised from the lower edge, and both holding plate parts 76a, 7
The attachment tongue piece 77 of the relay member 43 is fitted into the rear surface side of the relay member 6b. Therefore, the holding plate part 70 has a recessed part 78 which is slightly recessed as a whole, and the upper holding part 76a has a recessed part 78 which is slightly recessed.
The holding plate base 80 is suspended horizontally between a retaining plate base 80 that is connected to a rib portion 79 that stands up on the side edge of the holding plate 8 . The upper edge of the upper holding part 76 is chamfered so that the mounting tongue 77 can be easily inserted therein, and the inner corner of the upper edge of the retaining plate base 80 is also chamfered.

The recessed portion 78 is appropriately provided with a rib portion 79 for reinforcement, and an opening region 81 is also formed. This opening area 81 is for replacing light emitting means such as indicator lamps or LEDs facing the front side of the game board 12. Further, a fixing area 82 is formed adjacent to the opening area 81 for fixing a support (not shown) raised from the set plate 69 of the game board 12, and this fixing area 82 has a fixing area 82 for fixing a support post (not shown) raised from the set plate 69 of the game board 12. A plurality of fastening parts 83 are provided to correspond to the supports provided for each model. Each fastening part 83 consists of a through hole 83a through which a screw or the like is passed, and a circular protrusion (not shown) centered around this through hole, and a support is fitted into the circular protrusion. Fix the screws passed through the holes mentioned above to the end faces of the pillars. In this way, by forming the fastening area 82 in advance, even if there is a design change depending on the model, the designer only has to place the support within the range of the fastening area 82, which increases versatility. and is practical.

The relay member 43 consists of a relay terminal board 84 provided with a second connector 65 corresponding to the first connector 48 of the circuit box 31, and an attachment plate 85 to which this relay terminal board 84 is attached. The attachment plate 85 is provided with a mounting tongue piece 77 that engages with the holding plate portion 70 of the base frame member 42. Further, the relay terminal board 84 is
4 and the various wiring connectors 8
6... are connected by printed wiring. The wiring connectors 86a, 86d to 86i are connected to various electrical parts of the game board 12, and the wiring connectors 86b, 86c are connected to the gaming external relay terminal section 9 provided at the upper corner of the game board 12.
Connected to connector terminal 6.

On the other hand, the attachment plate 85 is provided with a rising piece 87 on the outer edge of the main body, and a mounting portion 88 is provided at an appropriate position to hang between the rising piece 87 and the attachment plate 85. In addition, an engagement piece 89 is provided on the rising piece 87 on one side, and the relay terminal board 84 is sandwiched between it and the above-mentioned mounting portion 88, and a screw 90 or the like is screwed into the fixing portion provided at the corner. The substrate 84 is fixed to the attachment plate 85. Incidentally, instead of the screw 90 described above, a claw piece may be provided on the rising piece 87 for locking.

The attachment tongue 77 provided on the other side of the attachment plate 85 has a substantially L-shaped protrusion and has a rounded tip for easy insertion. An engaging protrusion 91 is provided at the center of the tip end portion, and this engaging protrusion 91 can be fitted into an engaging recess 92 provided at the edge of the recessed portion 78 of the base frame member 42 described above.

On the other hand, a guide piece 58 provided on the lower case 45 of the circuit box 31 is placed on the surface side of the lower edge of the attachment plate 85 to guide the circuit box 31 to a proper position. A fence 93 is provided. That is, this guide fence 93
The horizontal width of the guide piece 58 is formed to be approximately equal to the horizontal width of the guide piece 58 to regulate the left and right position of the circuit box 31, and the hooking claw 58a of the guide piece 58 is hooked to a hooking edge 93a provided at the front edge of the guide fence 93. The height position can be regulated by stopping. Further, a cylindrical receiving portion 94 corresponding to the guide boss 57 of the circuit box 31 is provided extending from the upper edge corner. Therefore, when the guide piece 58 of the circuit box 31 is placed on the guide fence 93, the vertical and horizontal positions of the circuit box 31 are automatically determined, so if the circuit box 31 is pressed toward the game board 12 in this state, Since the first connector 48 and the second connector 65 are fitted together, and the guide boss 57 is fitted into the cylindrical receiving part 94, the circuit box 31 can be attached to an appropriate position very easily. Further, during this installation work, the first connector 48 and the second connector 65 will not be damaged due to careless movement of the circuit box 31. At this time, the release lever 64 is pressed by the end of the second connector 65 and returns to its original position.

Next, the circuit box 3 having the above configuration
1 and the removal of the relay member 43 will be explained.

For example, when inspecting whether unauthorized modification has been carried out, open the front frame 2 of the pachinko machine 1 and look at the back side of the game board 12. If it is added, it can be discovered through the transparent part of the circuit box 31, that is, the observation port 51 of the shield member 46.

[0030] Also, the state of the sealing paper that is pasted to the lower case 45 and the upper case 44 can be verified from the side of the circuit box 31, and the release lever 64 can be rotated to separate the first connector 48 and the second connector. If the circuit box 31 and the relay member 43 are separated from each other by disconnecting the circuit box 65 and the circuit box 31 is turned over, the sealed state can be more clearly confirmed.

Furthermore, when the locking member 62 is rotated and the shield plate 59 is removed, the back side of the circuit board 30 can be checked through the transparent lower case 45 without disassembling the circuit box 31. Note that the seal is made by pasting sealing paper from the lower case 45 to the side wall of the upper case 44 from the notch 59a provided in the shield plate 59, so even if the shield plate 59 is removed, the seal cannot be broken. There is no. Furthermore, in this example,
Since the edge piece 60 at the position where the paper seal is pasted is cut, the seal paper will not be lifted up by the edge piece 60 and the paper seal will not be easily torn.

On the other hand, the installation of the circuit box 31 can be done in the reverse order as described above, by placing the guide piece 58 on the guide fence 93 of the relay member 43 and pressing the circuit box 31 toward the relay terminal board 84 in this state. , the first connector 48 and the second connector 65 may be coupled together, and the guide boss 57 and the cylindrical receiving portion 94 may be fitted together. In addition, since the locking edge 93a of the guide fence 93 and the catch claw 58a of the guide piece 58 are locked, the circuit box 31 will not slip.

Furthermore, according to this embodiment, the relay member 43 can be replaced. That is, when each wiring connector 86 is removed and the attachment plate 85 is slid upward, the attachment tongue piece 77 and the holding part 76 are disengaged, so the relay member 43 can be removed from the base frame member 42. Can be done. Therefore, if the relay terminal board 84 is replaced when changing the model, etc., various wirings can be easily changed.

Although not explained in this embodiment, the game control circuit board 30 housed in the circuit box 31, the main body control box 34, and the game board 12 each have a relay terminal board 84. The main body external relay board 95 provided at the upper corner of the rear plate 23 and the gaming external relay terminal section 96 provided at the upper corner of the game board 12 are connected to external devices such as a power supply and a management computer. It is connected via. Various signal lines and various electrical devices can be individually removed without affecting the others.

Although the present invention has been described above with reference to the embodiments shown in the drawings, the present invention is not limited to the above-described embodiments, and can be carried out as appropriate without changing the configurations set forth in the claims. For example, although the shielding means is provided separately from the case, the case may be made of transparent conductive resin to provide the shielding effect to the case itself. Further, although the relay member is made detachable from the base frame member, the relay member may be fixedly formed on the base frame member. Further, although the shield member 46 is fixed to the inner surface of the upper case 44, the upper case 44 may be fixed to the inner surface of the shield member 46, or a transparent plate may be fixed to the inner surface of the observation port 51. You may. Further, if a conductive opening/closing lid is provided on the shielding member so as to be able to be opened and closed using a hinge so as to cover the observation port 51, the shielding effect will be further enhanced. In this way, the lid can be opened and observed when necessary.

[0036]

[Effects of the Invention] In summary, the present invention provides a pachinko machine in which various electrical devices are controlled by electrical control means, in which a circuit board constituting the electrical control means is housed in a circuit box having shielding means. , the circuit box is provided with a transparent part covering at least the entire surface of the flat plate part so that the inside can be seen through, and a first connector provided on the circuit board and a second connector provided on a mounting member fixed to the game board are connected. Since the mounting member and the circuit box are removably attached by electrical connection, the inside of the circuit box can be observed from the outside to every corner, and unauthorized modification to the circuit board can be prevented. Since it is possible to easily discover illegal games, it is possible to prevent illegal games. Furthermore, since a sufficient shielding effect is obtained, the circuit board is not affected by external noise, so there is no risk of malfunction. Furthermore, the circuit box and the mounting member can be attached and detached by the first connector means and the second connector means, and the attachment and detachment operation is extremely easy and reliable.

[Brief explanation of drawings]

FIG. 1 is a front view of a pachinko machine.

FIG. 2 is a rear view of the front frame with the movable frame body opened.

FIG. 3 is a partially cutaway side view of the circuit box attached to the game board.

FIG. 4 is a cross-sectional view of the same as above.

FIG. 5 shows the circuit box, (A) is a rear view, (B)
(C) is a partially cutaway side view, and (C) is a front view.

FIG. 6 shows the mounting member, (A) is a rear view, (B) is a rear view with the relay member attached, and (C) is a vertical cross-sectional view with the relay member attached.

FIG. 7 is an explanatory diagram of a release lever.

FIG. 8 is an explanatory diagram of a state in which a circuit board, a circuit box, a shield plate, etc. are attached.

[Explanation of symbols]

1 Pachinko machine 30 Circuit board 31 Circuit box 41 Mounting parts 42 Base frame member 43 Relay member 44 Upper case 45 Lower case 48 First connector 65 Second connector

Claims (1)

[Claims] Claim 1: In a pachinko machine in which various electrical devices are controlled by an electrical control means, a circuit board constituting the electrical control means is housed in a circuit box having a shielding means, and the circuit box includes: A transparent part covering at least almost the entire surface of the flat plate part is provided so that the inside can be seen through, and a first connector provided on the circuit board is electrically connected to a second connector provided on a mounting member fixed to the game board. A circuit box for a pachinko machine, characterized in that a mounting member and a circuit box are detachably attached to each other by means of the above.