JPH11267324A - Game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent, using a simple structure, any illegal acts on a control board or an intermediate board and its wiring or the like in a game machine such as a pachinko machine. SOLUTION: A control board mounting base 50 for a control board 60 is openably and closably assembled to a predetermined position of a game machine 1 and held closed by a holding means 70, and a back cover body 81 covering the control board 60 and the control board mounting base 50 is openably and closably assembled. The back cover body 81 is provided with a disconnection prevention means which non-releasably holds the holding means 7 when closing the cover body 81.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a game machine such as a pachinko machine and a throttle machine, and more particularly to a novel back cover device for covering a control board mounting base of a pachinko machine together with a control board.

[0002]

2. Description of the Related Art Conventionally, for example, in a pachinko machine as a game machine, a control board mounting base is mounted on the back of the game board so as to be openable and closable so as to cover a relay board, and is held in a closed state by holding means. ing. Also,
A control board storage box that houses the control board is mounted on the control board mounting base. In order to prevent unauthorized modification of the control board, for example, replacement of unauthorized ROM, various measures have been taken on the control board storage box. In general,
By pasting a seal between both the box body and the box cover of the control board storage box, the opening itself of the box cover is prohibited, thereby preventing unauthorized acts such as unauthorized modification of the control board. . In the unlikely event that the box cover is accidentally opened and a wrongdoing is performed on the control board, confirm that the sealing seal has been cut or peeled off to confirm the fact that the wrongdoing was performed. It was easy to recognize.

[0003]

By the way, in the above-mentioned conventional structure, the box cover can be opened only by removing the sealing seal. For this reason, if the seal is peeled off, the box cover is opened, and illegal control such as unauthorized modification of the control board is performed, then if the seal is cleverly pasted again, it is necessary to discover the fact of the fraud. However, there has been a problem that the illegal operation of the control board is performed unexpectedly. In addition, the control board mounting base can be opened by removing the holding means. For this reason, since the holding means is removed and the control board mounting base is opened, there has been a problem that the wrongdoing is unexpectedly performed on the relay board on the back surface of the game board, its wiring, and the like.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gaming machine capable of reliably preventing improper acts on a control board or improper acts on a relay board or its wiring with a simple structure. That is.

[0005]

According to a first aspect of the present invention, there is provided a gaming machine in which a control board mounting base for a control board is mounted at a predetermined position of the gaming machine so as to be openable and closable. While being held in the closed state by the holding means, a back cover body that covers the control board and the control board mounting base is assembled so as to be openable and closable, and the back cover body is closed when the back cover body is closed. Disengagement prevention means for holding the holding means undetachably is provided. Therefore, since the control board and the control board mounting base are covered by the back cover body, an illegal act on the control board is prevented. Further, when the back cover body is in the closed state, the holding means of the control board mounting base is irremovably held by the back cover body detachment preventing means, so that the control board mounting base is prevented from being accidentally opened. Is done. further,
Since the detachment prevention means is provided on the back cover body, the holding means can be held when the back cover body is assembled.

According to a second aspect of the present invention, in the gaming machine according to the first aspect, the holding means includes an elastic locking portion and an engaging portion which are elastically removably engaged. The disengagement prevention means includes a restraining portion for restraining the elastic locking portion and the engaging portion in an engaged state. Therefore, the holding means can easily hold the control board mounting table, and the detachment preventing means can easily hold the holding means.

[0007]

(Embodiment 1) Embodiment 1 of the present invention will be described with reference to FIGS. In FIG. 1 in which a substantially central portion of the pachinko machine is shown in a cross section viewed from the bottom side and in FIG. 2 in which the pachinko machine is viewed from the back side, the pachinko machine 1 as a gaming machine has a front frame 3 in front of a wooden frame 2. It is installed so that it can be opened and closed. At the front side of the opening of the front frame 3, a door frame 8 of a glass door is assembled. A base frame 4 is attached to the back surface of the front frame 3 at the periphery of the opening. A game board 20 is detachably fitted in the frame of the base frame 4. The game board 20 is provided with a prize ball device, an accessory device, a display device, and the like (not shown). Further, a ball guide case 31 having a ball back guide path 30 and an accessory substrate (not shown) for the accessory device are attached to a central portion of a back surface of the game board 20. On the back side of the ball guiding case 31, a relay board 32 connected by a connection cable 33 to electric parts (solenoids, motors, lamps, etc.) incorporated in the prize ball device, the accessory device, and the display device. It is assembled. The relay board 32 is connected by a connection cable 35 to a control board 60 housed in a control board housing box 61 described later. The game board 20 is held by being pressed against the support surface 5 of the base frame 4 by a back set plate 10 which is a main part of a back set mechanism 9 provided on a peripheral portion of the back surface.

The back set plate 10 which is the main part of the back set mechanism 9 is formed in a frame shape so as to surround the control board mounting base 50 described below. The back set plate 10 is attached to one side (the right side in FIGS. 1 and 2) of the base frame 4 by a back set hinge 6 so as to be openable and closable. Further, the back set plate 10 is removably fastened to the base frame 4 by a plurality of fasteners 7 on its free end side (left side in FIGS. 1 and 2). Thus, the back set plate 10 is held in a closed state with respect to the base frame 4. Further, a ball tank 11, a tank rail 12, a prize ball discharging device 13 and the like are disposed on the back set plate 10, and the back set mechanism 9 is configured by these.

At the center of the back surface of the game board 20, a control board mounting base 50 is mounted so as to cover the ball guide case 31, the accessory board (not shown), the relay board 32 and the like. As shown in FIGS. 1 and 4A to 4C, the control board mounting base 50 is formed by injection molding of a synthetic resin, opens toward the back surface of the game board 20, and has a peripheral wall portion 51.
And a base plate portion 52 are formed in a box shape. The base board portion 52 of the control board mounting base 50 includes the relay board 3
A cable insertion hole (not shown) through which a connection cable 35 connecting the control board 2 and the control board 60 is inserted is formed. The peripheral wall 51 of the control board mounting base 50 is formed in a plurality of steps with a wide opening side and a narrow base plate 52 side. Further, in the vertical direction of one side wall (left side in FIG. 4) of the peripheral wall portion 51, a thin and integrated mounting table hinge 4 is provided.
The mounting part 53 joined by the 0 is integrally formed. The mounting portion 53 has a bottomed cylindrical boss portion 53a formed near the upper and lower ends thereof, and is fixed to the back surface of the game board 20 by a screw 55 at the boss portion 53a. The control board mounting base 50 has a peripheral wall portion 51 and a base plate portion 52 assembled so as to be openable and closable about the mounting base hinge 40. The mounting base hinge 40 is generally provided on the opposite side of the wall portion adjacent to the prize ball discharge device 13 as in the present embodiment, and the control board mounting base 50 is provided.
Is prevented from interfering with the prize ball discharging device 13 at the time of the opening and closing rotation.

As shown in FIGS. 3 and 4 (A) to 4 (C), there is a gap between the upper and lower portions of the other side of the control board mounting table 50 and the back surface of the game board 20 opposed thereto. , Gaming board 20
A holding means 70 for detachably holding the control board mounting base 50 in a closed state is provided on the back surface of the base. The holding means 70 includes an elastic locking portion 71 attached to the back surface of the game board 20 by a screw 77, and an engaging portion 75 formed on the upper and lower portions on the other side of the control board mounting base 50. The elastic locking portion 71 is formed in a bottomed cylindrical shape having a center hole 72 opened at the distal end side, and has a required number of split grooves formed so as to be elastically openable. Further, the elastic locking portion 7
A locking claw 74 having a triangular cross section is formed on the outer periphery of the distal end of the first member.

On the other hand, the engaging portion 75 is formed in a stepped cylindrical shape having both ends opened centering on an engaging hole into which the elastic locking portion 71 is elastically inserted. Then, as shown in FIG. 4B, the elastic locking portion 71 is inserted into the engaging hole of the engaging portion 75 to a predetermined position while being elastically reduced, thereby engaging the elastic locking portion 71. The stop claw 74 engages with the step-like locking portion 76 of the engagement hole. The control board mounting base 50 is held in a closed state on the back surface of the game board 20 based on the engaging force between the locking claws 74 and the step-shaped locking portions 76.

As shown in FIGS. 1 and 4B, a control board storage box 61 in which a control board 60 is stored is mounted on the base plate portion 52 of the control board mounting base 50 by an appropriate mounting means. Have been. The control board storage box 61 includes a box body 62 on which the control board 60 is mounted,
And a box cover 63 mounted so as to close the opening of the box main body 62. The box cover 63 is sealed to the box main body 62 by box sealing means such as a sealing seal or a sealing screw provided between the two. Note that a large number of through holes 65 and 66 for heat radiation are formed in the peripheral wall portion and the cover plate portion of the box cover 63.

As shown in FIG. 1, on the back side of the game board 20, a back cover 8 covering the control board storage box 61 is provided.
1 is provided. In the first embodiment, the back cover body 81 is formed by injection molding of a synthetic resin, and is formed in a box shape large enough to cover the control board mounting base 50 together with the control board mounting base 50. The back cover body 81 is open toward the back surface of the game board 20 and includes a peripheral wall portion 82 and a cover plate portion 84. The peripheral wall portion 82 of the back cover body 81 is formed in a stepped shape having a plurality of steps with a wide opening side and a narrow lid plate portion 84 side. As a result, as shown in FIG.
Are formed so as to be vertically stackable with a predetermined fitting allowance, and handling such as transportation, storage, and storage is easy. Note that the control board mounting base 50 is also formed in a plurality of cross-section steps so that it can be stacked up and down with a predetermined fitting margin.

As shown in FIG. 7 and FIG. 8, a cross-section is formed at a leading edge of a substantially central portion of one side (right side in FIGS. 1 and 3) of the peripheral wall portion 82 of the back cover body 81. A hook hook 86 is formed. As shown in FIGS. 7 and 8, on the side of the peripheral wall portion 51 of the control board mounting base 50 corresponding to the locking hook 86, an engagement that is removably engaged with the locking hook 86. A part 45 is formed. Further, a first flange portion 88 projects from upper and lower portions on one side of the peripheral wall portion 82 of the back cover body 81, and a second flange portion 89 projects from upper and lower portions on the other side. As shown in FIGS. 3 and 4B and 4C, on the front surface of the first flange portion 88 of the back cover body 81, a restraining portion 101 to be fitted into the center hole 72 of the elastic locking portion 71 is provided. It is protruding. The restraining portion 101 constitutes a disengagement preventing means 100 for holding the control board mounting base 50 so as not to be detached from the back surface of the game board 20. As shown in FIGS. 3 and 5, the control board mounting base 50 is attached to the second flange 89 of the back cover body 81.
A closing hole 91 into which a closing hook 90 projecting from the mounting portion 53 is detachably inserted is formed. Further, on the front surface of the second flange portion 89 of the back cover body 81, a boss 53 a of the mounting portion 53 of the control board mounting base 50 is fitted to position the back cover body 81 with respect to the control board mounting base 50. A mating projection 105 is provided in a protruding manner.

That is, the back cover body 81 is
The restraining portion 101 on the front surface of the first flange portion 88 is fitted into the center hole 72 of the elastic locking portion 71 formed on the control board mounting base 50. At this time, as shown in FIG. 7, the engaging hook 86 of the back cover body 81 is positioned diagonally below the engaging portion 45 of the control board mounting base 50, and the back cover body 81 is attached to the control board mounting base 50. Take a leaning posture. And the elastic locking portion 71
When the back cover body 81 is rotated toward the back surface of the game board 20 while the restraining portion 101 is fitted in the center hole 72 of FIG.
As shown in FIG. 7, the engaging hook 86 of the back cover body 81 is engaged with the engaging portion 45 of the control board mounting base 50. By the subsequent rotation of the back cover body 81, the fitting projection 1
The back cover body 81 is positioned with respect to the control board mounting base 50 by inserting the locking hooks 05. At substantially the same time, the closing hooks 90 are inserted into the closing holes 91 and elastically engaged.
Thus, as shown in FIGS. 1 and 4C, the back cover body 81 is attached to the control board mounting base 50 so as to be openable and closable, and the control board storage box 61 of the control board mounting base 50 is mounted on the back. It is configured to be covered by a cover body 81.

The control board mounting base 50 and the back cover body 81
Sealing means 110 for sealing the back cover body 81 so that it cannot be opened is provided between the two. Embodiment 1
In FIG. 3, as shown in FIG.
A sealing lock 111 and a sealing member 120 are provided, and the back cover body 81 is double-sealed. The sealing lock 111 and the sealing member 120 are formed on the upper surface of the peripheral wall portion 82 of the back cover body 81 near the side of the intermediate step portion 83 of one side wall portion and the base plate portion 52 of the control board mounting base 50 opposed thereto. It is arranged between each.

That is, as shown in FIGS. 9A and 9B, a loop-shaped locking projection 115 is provided on the upper surface of the control board mounting base 50 near one side of the base plate 52. Have been. On the other hand, a locking hole 114 into which the locking protrusion 115 is removably inserted is formed in the intermediate step 83 on one side wall of the back cover body 81. Then, the locking protrusion 115 is inserted into the locking hole 114, and the lock hook 113 extending from the lock body 112 of the sealing lock 111 is locked to the lock body 112 through the locking protrusion 115, The back cover body 81 is sealed to the control board mounting base 50.

Also, as shown in FIG.
In a state where the back cover body 81 is sealed with respect to the control board mounting base 50, the sealing lock 111 is arranged in a direction intersecting the opening / closing locus of the back setting mechanism 9 centering on the back setting hinge 6. Has become. Then, as shown by the two-dot chain line in FIG. 1, the opening of the back setting mechanism 9 is restricted to a slight opening angle by the sealing lock 111.

As shown in FIGS. 3, 10, and 11A and 11B, the sealing member 120 is provided on the back cover body 8.
1 between the intermediate step portion 83 and the upper surface of the base plate portion 52 of the control board mounting base 50 facing the one side near the one side, so that the back cover body 8 is attached to the control board mounting base 50.
1 is sealed. The sealing member 120 integrally includes a rectangular plate-shaped base 121 and a leg 122 projecting from one side surface of the base 121 at a right angle.
Is formed with a locking portion 123 having a triangular cross section. The surface of the intermediate step 83 of the back cover body 81 has a recess 13 into which the base 121 of the sealing member 120 is fitted.
1 is formed, and the mounting seat 1
The leg 1 of the sealing member 120 is located at the center of the
An insertion hole 132 through which 22 is inserted is penetrated. Further, a leg section 122 of the sealing member 120 is inserted into the upper surface of the control board mounting base 50 near one side of the base plate section 52 and is engaged with the locking section 123 to prevent the sealing member 120 from coming off. A tapered locking hole 135 is provided.

That is, the locking portion 123 at the tip of the leg portion 122 of the sealing member 120 is pushed into the locking hole 135 through the insertion hole 132 of the concave portion 131 of the mounting seat portion 130 so that the locking hole 135 is formed. It passes through the locking portion 123 while elastically expanding. Then, when the locking portion 123 at the tip of the leg 122 of the sealing member 120 passes through the locking hole 135, the locking hole 135 is elastically returned to the original state, whereby the locking portion 123, the locking hole 135 and The back cover body 81 is engaged with the control board mounting base 50 based on the engaging force.
Is to be sealed.

In Embodiment 1, FIG.
As shown in (B), when the back cover body 81 is sealed to the control board mounting base 50 by the sealing member 120, the leg 122 of the sealing member 120 is easily cut by a cutting tool such as a nipper. So that the back cover body 8
1 has a length dimension protruding outward by a predetermined length (to the rear side). Also, as shown in FIG. 11B, the leg 122 of the sealing member 120 is
Is pushed into the locking hole 135 through the one insertion hole 132,
When the base 121 of the sealing member 120 is pushed to the pushing end position where it comes into contact with the bottom surface of the recess 131, the base 1
The thickness of the base 121 and the depth of the recess 131 are appropriately set so that the surface of the base 21 is substantially flush with the surface of the mounting seat 130. Then, the sealing seal 140 is easily attached as necessary, with the surface of the base 121 straddling the surface of the mounting seat 130.

In the first embodiment, as shown in FIGS. 1 and 3, the cover plate portion 84 of the back cover body 81 includes
A heat dissipation opening window 85 is formed at a position corresponding to the box cover 63 of the control board storage box 61.
The box cover 6 of the control board storage box 61
The heat dissipating action of the large number of heat dissipating through-holes 66 provided in the cover plate portion 3 is preferably performed through the heat dissipating opening window 85 without being hindered by the back cover body 81.

The back cover device of the pachinko machine control box according to the first embodiment is configured as described above. Therefore, on the back side of the game board 20, a back cover body 81 is provided so as to cover the control board storage box 61 of the control board mounting table 50, and the back cover body 81 is sealed in a closed state by the sealing means 110. . This prevents the box cover 63 of the control board storage box 61 from being unexpectedly opened. The sealing means 110 for the back cover body 81 includes a sealing lock 111 and a sealing member 120, and double seals the back cover body 81. Therefore, even if the sealing lock 111 is unexpectedly unlocked, the back cover body 81 can be kept in the sealed state by the sealing member 120. When the sealing member 120 is damaged, the back cover body 81 is unexpectedly opened by confirming the damage of the sealing member 120, and an illegal act is performed on the control board 60 of the control board storage box 61. It can be assumed that it was done. For this reason, it is possible to prevent the illegal replacement of the components of the control board 60 and the improper conduct.

The control board 60 of the control board storage box 61
When the inspection, maintenance and inspection are performed, the sealing lock 111 is unlocked using a key managed by a predetermined manager. As shown in FIGS. 11A and 11B, in the sealing member 120, first, the sealing seal 140 is peeled off. Next, the sealing member 1
By pulling out the legs 122 of the 20 by a predetermined length to the outside of the back cover body 81, the drawn-out portions of the legs 122 are easily cut by a cutting tool such as a nipper. Accordingly, the unsealing of the sealing lock 111 and the sealing member 120 is easily and quickly performed. Then, after the back cover body 81 is opened and removed, the control board storage box 61 is removed.
When the box cover 63 is opened, inspection, maintenance, and the like of the control board 60 stored in the control board storage box 61 are performed.

Also, as shown in FIG.
When the back cover body 81 is sealed with respect to the control board mounting table 50, the sealing lock 111 is arranged in a direction intersecting the opening / closing locus of the back setting mechanism 9 centering on the back setting hinge 6. For this reason, the opening of the back setting mechanism 9 can be restricted to a slight opening angle by the sealing lock 111. Thereby, a fraudulent act performed through a gap between the game board 20 and the control board mounting base 50, for example, a fraudulent act of connecting the connection cable 33 of the relay board 32 to a fraudulent component or an accessory board (not shown) or the like. Fraud is prevented.

In the first embodiment, as shown in FIG. 4C, an elastic member projecting from the back surface of the game board 20 is provided on the front surface of the first flange portion 88 of the back cover body 81. A restraining portion 101 that is fitted into the center hole 72 of the stop portion 71 is provided in a protruding manner. Therefore, the engagement between the elastic locking portion 71 of the game board 20 and the engaging portion 75 of the control board mounting base 50 is held by the restraining portion 101. That is, the elastic locking portion 71
The engagement portion 75 is reliably prevented from being detached while elastically contracting. Therefore, the control board mounting base 50 is not opened around the mounting base hinge 40 unless the back cover body 81 is removed.

As shown in FIG. 4C, on the front surface of the second flange portion 89 of the back cover body 81, the control board mounting base 5 is fitted into the boss 53a of the control board mounting base 50.
The fitting projection 10 that positions the back cover body 81 with respect to 0
5 are protrudingly provided. Therefore, the control board mounting table 50
Of the back cover body 81 with respect to the back side of the game board 20 by the fitting action between the boss portion 53a and the fitting projection 105 of the back cover body 81 and the fitting action between the elastic locking portion 71 and the restraining portion 101. In addition to preventing misalignment and rattling in the left and right directions, the back cover body 81 is accurately positioned and held at a predetermined position on the back side of the game board 20.

(Embodiment 2) Next, Embodiment 2 of the present invention will be described with reference to FIGS. 12 to 14. In Embodiment 2, the sealing member 12 of the back cover body 81 is described.
At 0, an overhang 124 extends from one side of the base 121 in a direction intersecting the opening / closing trajectory of the back setting mechanism 9 about the back setting hinge 6. The opening of the back setting mechanism 9 is restricted to a slight opening angle by the projecting portion 124 of the sealing member 120. This prevents fraudulent acts performed through the gap between the game board 20 and the control board mounting base 50, for example, fraudulent acts of connecting the connection cable 33 of the relay board 32 to fraudulent parts or fraudulent acts on the accessory board or the like. Is done. The other configuration is the same as that of the first embodiment, and a description thereof will be omitted.

(Embodiment 3) Next, Embodiment 3 of the present invention will be described with reference to FIGS. 15 to 17. In Embodiment 3, as shown in FIG. The holding means 70 for holding the control board mounting base 50 which can be opened and closed in a closed state is also covered by a part of the back cover body 81 so that the holding means 70 is accidentally removed from the outside. It is configured so that there is no. In the third embodiment,
As shown in FIGS. 16 and 17, a flange portion 56 projects from one end of the peripheral wall portion 51 of the control board mounting base 50. A locking hole 57 into which a holding member 78 as a holding means 70 is inserted is formed in the flange portion 56.
A detachable hole portion 58 is formed in the diameter direction of the locking hole 57 so that a pressing piece 79 for the holding member 78 can be inserted and removed.

On the other hand, the holding member 78 as the holding means 70 is formed in a cylindrical shape having a stepped mounting hole for the mounting screw 73 at the center thereof. It is rotatably mounted.
In the diameter direction of the outer peripheral surface of the holding member 78, a pressing piece 79 that also serves as a knob for pressing the flange portion 56 of the control board mounting base 50 against the back surface of the game board 20 is provided in a protruding manner. Then, as shown by a two-dot chain line in FIG. 16, the pressing piece 79 also serving as a knob of the holding member 78 is disposed at a detached position corresponding to the detached hole 58 of the locking hole 57 of the flange 56 of the control board mounting base 50. In this state, the control board mounting base 50 can be opened and closed with respect to the back side of the game board 20. Also,
As shown by the solid line in FIG. 16, when the pressing piece 79 also serving as a knob of the holding member 78 is disposed at a holding position rotated by about 90 degrees from the release position, the pressing piece 79 serving as a knob is also provided.
Engages with the locking hole 57 of the flange portion 56 and presses the flange portion 56 against the back surface of the game board 20. As a result, the control board mounting base 50 that is openably and closably mounted on the back surface of the game board 20 is held in a closed state.

On the other hand, as shown in FIG. 15 and FIG. 16, a lock portion 102 which forms a disengagement prevention means 100 protrudes from an inner wall surface of the opening of the back cover body 81 at a position corresponding to the holding member 78. . The lock portion 102 is formed with a lock groove 103 for inserting a pressing piece 79 for the holding member 78 disposed at the holding position and also for locking the pressing piece 79 so that it cannot rotate. This prevents the holding member 78 from being unexpectedly rotated toward the detached position, thereby preventing a problem that the control board mounting base 50 is opened and an illegal act is performed. As the holding means 70 for holding the control board mounting base 50 in a closed state, there is a holding means such as a screw or the like other than the structure described in each of the first and third embodiments.

In the first to third embodiments, the case where the control board 60 is housed in the control board storage box 61 and mounted on the control board mounting base 50 is exemplified, but the present invention is not limited to this. . For example, the control board mounting table 5
For 0, the control board 60 may be directly mounted.
In the first to third embodiments, the case where the back cover body 81 is assembled to the control board mounting base 50 so as to be openable and closable has been exemplified, but the present invention is not limited to this. For example, the back cover body 81 may be directly openable and closable on the back surface of the game board 20. In addition, the first embodiment
3, the back cover body 81 with respect to the back side of the game board 20.
Although the case where the sealing means 110 for sealing the container so as to be unable to be opened is provided with the sealing lock 111 and the sealing member 120 respectively, the sealing means 110 is constituted by only one of the sealing lock 111 and the sealing member 120. May be done.

Further, the control board mounting base 50, the back cover body 8
1 may be mounted on a main body other than the game board 20 of the pachinko machine 1. Further, in the back setting mechanism 9, a general structure having a rectangular frame shape surrounding the four peripheral portions of the control board mounting base 50 is exemplified, but the present invention is not limited to this. For example, a back-setting mechanism configured in an inverted L-shape along the upper part and one side of the control board mounting base 50, and a U-shaped set-up mechanism configured in a U-shape along the upper and lower parts and one side along the control board mounting base 50. Can also be adopted. However, in this case, it goes without saying that the sealing means is provided at a position where the opening of the back setting mechanism is regulated. Further, the present invention can be applied to a gaming machine such as a throttle machine other than the pachinko machine 1.

[0034]

As described above, according to the present invention,
An extremely simple structure in which the back cover body is openably and closably assembled so as to cover the control board storage box can reliably prevent improper acts on the control board. Further, by holding the holding means of the control board mounting base so as not to be detached by the back cover body detachment preventing means, it is possible to prevent the control board mounting base from being accidentally opened. Therefore, for example, in the case where the gaming machine is a pachinko machine, it is possible to reliably prevent an illegal act on the relay board, the wiring, and the like on the back surface of the gaming board.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view taken along the line II of FIG. 2 and viewed from the bottom surface showing a back cover device of a control board for a pachinko machine according to Embodiment 1 of the present invention.

FIG. 2 is a rear view showing the entire pachinko machine.

FIG. 3 is an enlarged rear view of the back cover device.

FIG. 4 is an explanatory view sequentially showing a state in which a control board mounting base is mounted on the back side of the game board and then a back cover body is mounted.

FIG. 5 is a cross-sectional view showing a locking portion between the control board mounting base and the back cover body.

FIG. 6 is an explanatory view showing a state in which the back cover bodies are similarly stacked.

FIG. 7 is an explanatory view showing a state before the locking hook of the back cover body is engaged with the engaging portion of the control board mounting base.

FIG. 8 is an explanatory view showing a state in which a locking hook of a back cover body is engaged with an engaging portion of the control board mounting base.

FIG. 9 is an explanatory view showing a sealing lock for sealing the control board mounting base and the back cover body.

FIG. 10 is a perspective view showing a sealing member for sealing the control board mounting base and the back cover body.

FIG. 11 is a sectional view showing a state in which a sealing member is assembled between the control board mounting base and the back cover body.

FIG. 12 is a perspective view showing a sealing member according to Embodiment 2 of the present invention.

FIG. 13 is a rear view showing a state where a sealing member is similarly assembled between the control board mounting base and the back cover body.

FIG. 14 is a cross-sectional view showing a state where a sealing member is assembled between the control board mounting base and the back cover body.

FIG. 15 is an explanatory diagram illustrating a back cover device of a control box for a pachinko machine according to Embodiment 3 of the present invention.

FIG. 16 is a sectional view based on the line XVI-XVI of FIG. 15;

FIG. 17 is a perspective view showing the relationship between a retaining hole of a flange portion of the control board mounting base and a holding member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pachinko machine (game machine) 3 Front frame 4 Base frame 9 Back setting mechanism 20 Game board 50 Control board mounting stand 60 Control board 61 Control board storage box 70 Holding means 81 Back cover body 110 Sealing means 111 Sealing lock 120 Sealing member

Claims (2)

[Claims] At a predetermined position of a gaming machine, a control board mounting base for a control board is openably and closably mounted and held in a closed state by holding means, and covers the control board and the control board mounting base. A gaming machine, wherein a back cover body is assembled so as to be openable and closable, and the back cover body is provided with detachment prevention means for holding the holding means irreversibly when the back cover body is closed. 2. The gaming machine according to claim 1, wherein the holding means includes an elastic locking portion and an engaging portion which are elastically and removably engaged with each other, and the detachment preventing means includes the elastic locking portion. A game machine comprising a restraining portion for restraining the and the engaging portion in the engaged state.