JP2003190562A - Ground connection mechanism of game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ground connection mechanism for simple ground connection. <P>SOLUTION: The game machine comprises a fixing member and an open/close member attached to the fixing member in such a way that it can be opened/ closed or attached to/detached from the fixing member and can be closed and held to the fixing member. The open/close member has an earth plate 63 and a ground connection member 81 on the open/close side electrically connected to the earth plate 63, and the fixing member has a ground connection member 82 on the fixing side electrically connected to a ground terminal. The potential charged in the earth plate 63 can be grounded to the earth potential as the ground connection member 81 on the open/close side and the ground connection member 82 on the fixing side abut and are electrically connected to each other while the open/close member is closed and held to the fixing member. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground connection mechanism for a gaming machine typified by a pachinko machine, and more specifically, a fixing member provided on the gaming machine and a fixing member which can be opened / closed or detachably attached and closed. The present invention relates to a ground connection mechanism provided between a holding member and an opening / closing member attached thereto.

[0002]

2. Description of the Related Art In a game machine represented by a pachinko machine, a metal material mainly composed of iron-based alloy is used as a game ball, while a path along which the game ball moves, for example, a game ball supply device on the side of a game facility. Since the resin gutters such as ABS resin, polyacetal resin, polycarbonate resin, etc. are often used for the supply gutter member, the tank member of the pachinko machine, the supply and discharge passage of the prize ball, the game ball comes into contact with these members and rubs against them. It has characteristics that it is likely to be charged with static electricity while moving together, and that once it is charged, its potential is easily retained.

On the other hand, in recent years, gaming machines called so-called microcomputer gaming machines and digital gaming machines have become mainstream in order to improve the taste of gaming, and main control with a microprocessor installed inside the gaming machine. A wide variety of circuit boards such as a board, prize ball control board, lamp / voice control board, image control board, etc. are mounted. The electronic circuits on these circuit boards are generally vulnerable to high peak voltage pulse noise, and if no measures are taken against static electricity, the static electricity accumulated in the game ball will be discharged in the air due to dielectric breakdown and become static electricity. There is a possibility that various troubles may occur, such as noise being generated, which may cause a malfunction in control or damage to an IC chip mounted on a circuit.

For this reason, in recent game machines, a grounding device is provided in the moving path of the game ball so as to discharge electric charges and prevent static electricity from accumulating before the potential of the game ball becomes too high. For example, the upper ball plate that stores and aligns prize balls (gaming balls) is also provided with a ground sheet metal at a position where it contacts the prize balls (gaming balls). Connect to the terminal. As a result, the potential of the charged prize ball (gaming ball) is grounded to the ground potential.

By the way, a ball feeding device, a launch rail, a hammer head part of a hitting ball launching device and the like are arranged on the back side of the upper ball dish, and it is necessary to inspect and adjust each part during or after the game. For this reason, the upper bowl is supported by a hinge mechanism provided on the left side portion of the front frame so that it can be swung open / closed and detached.
It is attached so that it can be closed and held by a locking device provided on the right side. As a result, inspection, adjustment, and the like can be performed in a state where the upper bowl is laterally opened and opened with respect to the front frame.

[0006]

However, since the length of the ground wire necessary for connecting the ground sheet metal and the ground terminal changes when the upper bowl is opened and closed, and when the upper bowl is opened and closed. It is necessary to give some margin to the length of the wire. Therefore, the ground wire may bend when the upper bowl is opened and closed, and when the upper bowl is closed with respect to the front frame, the ground wire may be caught between the upper bowl and the front frame and damaged. was there.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a grounding connection mechanism capable of making a simple grounding connection.

[0008]

In order to achieve such an object, the invention described in claim 1 is such that a fixing member (for example, the front frame 2 in the embodiment) and a fixing member can be opened and closed or detached, and In a gaming machine provided with an opening / closing member (for example, the upper bowl 6 in the embodiment) attached so as to be capable of being closed and held, and the opening / closing member is provided with a ground, the opening / closing member is grounded. Sheet metal (for example, the ball guide rail 63 or the gutter earth plate 6 in the embodiment).
6) and an open / close side ground connection member (for example, the connection plate 81 in the embodiment) electrically connected to the ground sheet metal, and a fixed side ground connection electrically connected to the ground terminal on the fixed member. A member (for example, the connection pin 82 in the embodiment) is provided, and in a state where the opening / closing member is closed and held by the fixing member, the opening / closing-side ground connection member and the fixed-side ground connection member come into contact with each other to be electrically connected. As a result, it is possible to ground the electric charge on the ground sheet metal.

Further, the invention according to claim 2 is such that a fixing member (for example, the front frame 2 in the embodiment) and an opening / closing member attached to the fixing member so as to be openable / closably attachable / detachable and capable of being closed and held (for example, In the gaming machine provided with the upper ball plate 6) of the embodiment and provided with the opening / closing member closed and held by the fixed member, the opening / closing member is provided with a ground sheet metal (for example, the ball guide rail 63 in the embodiment or A gutter ground plate 66) and an opening / closing-side ground connecting member (for example, the swinging member 181 in the embodiment) electrically connected to the ground sheet metal are provided, and the fixing member is electrically connected to the ground terminal. A fixed side ground connection member (for example, the connection pin 182 in the embodiment) to be connected is provided,
In a state where the opening / closing member is closed and held by the fixing member, the opening / closing side ground connection member and the fixed side ground connection member are brought into contact with each other and electrically connected to each other, whereby the electric charge of the charged game ball can be ground-faulted. In addition, the open / close side ground connection member and the fixed side ground connection member can be electrically connected / disconnected.

According to the earth connection mechanism of the gaming machine thus constructed, the opening-side ground connection member and the fixed-side ground connection member are brought into contact with each other and electrically connected to each other, so that the ground sheet metal and the ground terminal are connected to each other. Since it is electrically connected, it is not necessary to connect the ground wire to the ground metal plate provided on the opening / closing member to connect to the ground terminal, and the ground connection can be simply performed.

[0011]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the embodiments, a pachinko machine will be taken up as a typical example of the gaming machine according to the present invention for description. First, a schematic configuration of a pachinko machine PM to which the present invention is applied will be described with reference to FIGS. 1 to 3. Here, FIG. 1 is a front view of the pachinko machine PM viewed from the front, FIG. 2 is a rear view of the pachinko machine PM viewed from the back, and FIG. 3 is a pachinko machine in a state in which a glass door 5 and an upper bowl plate 6 described later are opened. The front view of machine PM is shown. In addition, in FIG. 2, the rear surface configuration of the game board is omitted.

In the pachinko machine PM, the front frame 2 for opening and closing is formed on the front surface of the opening of the outer frame 1 which is configured to have an outer rectangular frame size and forms a vertically oriented fixed holding frame, and which is configured to have a rectangular frame size corresponding thereto. Are opened and closed laterally by hinge members 3a and 3b arranged above and below the left side of each other, and detachably attached, and are engaged with the outer frame 1 using a locking device 4 provided on the right side of the front. Is used for games.

On the front side of the front frame 2, a rectangular glass door 5 which fits the front side surface region of the front frame 2 is assembled so that it can be opened / closed / removed sideways, and the locking device 4 is always used. Then, the front frame 2 is held in a closed state to cover the front surface thereof. Furthermore, the upper bowl plate 6 for storing and aligning the game balls is assembled so that the hinge mechanism (details will be described later) provided on the left side can be opened / closed sideways and attached / detached, and the upper bowl plate is always provided. The front side of the front frame 2 is held in a closed state by utilizing a locking device 70 provided on the right side of the front frame 6. At the lower part of the front frame 2, a lower ball plate 7 and an operation handle 8 for performing a shooting operation of a game ball are attached.

A rectangular frame-shaped accommodating frame (not shown) is integrally formed with the front frame 2 on the upper rear surface of the front frame 2 located behind the glass door 5, and the accommodating frame is set to a predetermined gauge. The configured game board 20 has a plurality of engaging levers 17, 17 ...
The detachable and replaceable set is held by the front surface of the glass door 5 facing the front area.

In the game board 20, a band-shaped outer rail 22a and an inner rail 22b are fixed in an arc shape on the front side of a decorative plate 21 having cells attached to the surface thereof, and a game area PA is defined inside this. It In the game area PA, a plurality of game nails, a plurality of wind turbines 23, general winning tools 24, starting winning tools 25, winning tools such as a special winning opening 26, and a pattern display device 28 having a decorative portion in the periphery are provided. Play area P
At the lower end of A, an outlet 27 is provided for discharging a game ball that has fallen without winning a prize. The game balls (called "safe balls") that have fallen into the prize winning device are detected by the prize winning ball detecting sensor provided in each prize winning device, and pass through the safe ball passage hole penetrating the decorative plate 21 and the back surface of the game board 20. Discharged to the side. Further, the out balls collected in the out port 27 are discharged to the back surface side of the game board 20 through the out ball passage hole penetrating the decorative plate 21.

On the back side of the front frame 2, a back set board BSP is equipped with upper and lower hinges 18, 18 so that it can be opened / closed sideways and attached / detached, and the closing levers 19, 19 ... It is held closed to cover the back side. The back set board BSP is equipped on the upper part of a window 31 for receiving an image control board (not shown) protruding from the game board 20 provided in the center of the back set board BSP, for storing and supplying game balls. A ball storage and supply mechanism 32 for performing and a prize ball mechanism such as a prize ball payout mechanism 33 that is installed on the right side of the window 31 and performs a process of paying out game balls guided from the ball storage and supply mechanism 32 are provided, and prize ball payout is performed. The prize ball payout path 3 for discharging the game balls (referred to as "prize balls") located below the mechanism 33 to the upper and lower ball plates 6 and 7
4. Out balls and safe balls (collectively referred to as "played balls") discharged below the window 31 and discharged to the back side of the game board 20 are collected and discharged to a collection bucket on the game facility side. Played ball discharge route (not shown)
Have been formed.

On the back side of the back set board BSP, a main control board 91 for integrally controlling the operation of the pachinko machine is provided.
A prize ball control board 92 for controlling the payout of prize balls, a lamp / sound control board 93 for controlling the operation of effect lighting and sound effects,
A power supply board 94 that supplies a predetermined amount of power to each control board or electronic component, a relay board 95 to which a plurality of connectors are attached to relay control signals and power, and to output the operating state of the gaming machine to the gaming facility side. Various circuit boards such as the terminal board 96 and electronic components such as the prize ball cassette 97 are attached, and each device is connected by a wire harness (not shown).

As shown in FIG. 3, a hitting ball launching device 9 is attached to the lower portion on the rear side of the front frame 2, and is located between the hitting ball launching device 9 and the game board 20, that is, immediately below the game board 20. At the middle portion of the front frame 2, a launch rail 41 for guiding the game ball launched by the ball launch device 9 toward the outer rail 22a of the game board 20, a speaker 44 for producing a sound effect, and the like are attached and launched. Rail 41
The foul mouth 42 that opens upward at the upper end side and is connected to the lower bowl plate 7 at the lower side, the lower ball dish outlet 43 that communicates with the ball passage of the foul mouth 42 and leads to the lower bowl plate 7, and the prize balls paid out from the back mechanism board. An outlet 45, which is an outlet, is provided. Front frame 2
These areas in are referred to as a game auxiliary board 40, and a rectangular upper spherical plate 6 is attached so as to open sideways and open and close so as to cover the front surface of the game auxiliary board 40.

Further, a recess 46 through which the cable 77 of the ground wire 75 passes is formed on the back side of the game auxiliary board 40 (see FIG. 2), and a cover plate 47 is attached to cover the recess 46. A central harness through 46a and a right harness through 46b through which the cable 77 of the ground wire 75 is inserted are formed at the center of the bottom surface and the right side surface of the recess 46.

The upper ball plate 6 is attached to the front side of the backing plate portion 61 and the backing plate portion 61 formed so as to cover the front surface of the game auxiliary board 40, and stores the game balls and the prize balls stored therein. (Game ball) tilt down (rightward in Figure 1)
And a ball disc portion 62 aligned in a line toward the front side of the ball disc portion 62.
Is attached. On the back surface side of the backing plate portion 61, a ball feeding device 69 for supplying the prize balls (game balls) arranged by the ball plate portion 62 onto the launch rail 41 one by one is attached, and also the ball removing lever. There is provided a ball return port (not shown) for ejecting the game balls to the lower ball plate 7 through the collecting and collecting port 43 when the 62a is operated. Patch plate 61
In the upper left part of the, there is formed a passage trough 65 aligned with the passage 45, and the prize balls discharged from the passage 45 are guided through the passage trough 65 to the bowl plate portion 62. Has been done.

The upper ball dish 6 is a game auxiliary board 40 in the front frame 2.
The lock device 70 that holds the front surface of the table in a closed state is provided on the right side portion of the upper ball plate 6 between the upper ball plate 6 and the game auxiliary board 40, and is a lock mechanism provided on the front frame 2 side. 71
And a lock metal fitting 72 that is attached to the right side of the back surface of the contact plate portion 61 in the upper bowl 6 and that engages with the lock mechanism 71.

The pachinko machine PM is used for a game in a state where the upper ball plate 6 and the glass door 5 are closed and locked (a state shown in FIG. 1), and the upper ball plate 6 stores game balls and the operation handle 8 is used.
The game is started by rotating the. When the operation lever of the operation handle 8 is rotated, the game balls stored in the upper ball dish 6 are sent one by one onto the launch rail 41 by the ball feeder provided in the ball dish, and the hit ball launching device 9 The game area PA of the game board 20 which is hit by the hammer of
The pachinko game is developed after that.

In the pachinko machine PM constructed as described above, a ground connection mechanism is provided between the front frame 2 and the upper bowl plate 6. Hereinafter, the earth connection mechanism 80 of the first embodiment will be described in detail with reference to FIGS. 4 to 6. 4 is a perspective view showing the ground connection mechanism 80 in a disassembled state, FIG. 5 is an enlarged plan view (partial cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism 80, and FIG.
FIG. 7 is an enlarged side view (partial cross-sectional view) showing the periphery of the attachment portion of the ground connection mechanism 80.

The earth connection mechanism 80 includes a connection plate 81 attached to the back side of the contact plate portion 61 and a connection pin 8 attached to the front surface of the game auxiliary board 40 so as to be able to contact the connection plate 81.
2, mounting screws 83 for fixing the connecting plate 81, and the connecting plate 8
1 is made up of a metal mounting washer 84 and an intermediate washer 85 that are attached together with a connecting plate 81 to facilitate fixing, and the connecting plate 81 is connected in a closed state in which the upper bowl plate 6 covers the front surface of the game auxiliary board 40. By contacting the pin 82, the connection plate 81 and the connection pin 82 are electrically connected.

The connecting plate 81 is made by cutting a metal plate having a predetermined thickness.
It is formed into a shape shown in each drawing by forming means such as bending and punching. A connection plate attachment hole 81a for the attachment screw 83 is formed in the upper end of the connection plate 81. Also,
A connection pin contact portion 81b that contacts the connection pin 82 is formed in a flat plate shape at the lower end of the connection plate 81, and the upper portion of this connection pin contact portion 81b is bent. Further, the connection plate 81 is pressed by the connection pin 82 and elastically deformed in a state where the contact plate portion 61 covers the front surface of the game auxiliary board 40, and the contact pressure with the connection pin 82 is maintained by the elastic force. It is configured to lean.

The connection pin 82 is formed by cutting a metal round bar into a screw shape, and at one end of the connection pin 82, a connection plate contact portion 82a that contacts the connection pin contact portion 81b of the connection plate 81 is projected. It is formed in a spherical shape. Also, the connection pin 8
At the other end of 2, a terminal connecting portion 82b is formed so that it can be connected to the cap-type terminal 76 of the ground wire 75.

The ground wire 75 is a cable 77 in which the surface of a metal conductor having a multi-strand twisted wire structure is coated with an insulating coating.
And a cap-type terminal 76 crimped and connected to one end thereof, the cap-type terminal 76 is connected to the terminal connecting portion 82b of the engaging pin 82, and the other end 78 of the cable 77.
Is connected to the ground terminal 98 of the terminal board 96 so that the connection pin 82 can be grounded to the ground potential. The cable 77 of the ground wire 75 is wired through the back surface side of the game auxiliary board 40 so as not to interfere with the opening / closing operation of the upper ball plate 6 with respect to the game auxiliary board 40 or hinder the flow of the game balls. The wiring route will be described later.

The mounting screw 83 is formed by cutting a metal round bar into a screw shape, and the mounting plate 83 is connected from the mounting screw 83 side.
Member mounting portion 63 of the connection plate mounting hole 81a provided in the intermediate portion, the intermediate washer 85, and the ball guide rail 63 provided in the bowl portion 62.
a, and the mounting washer 84 in that order
The fixing plate portion mounting boss 67 formed on the back side of 1 is fastened and fixed together.

The main portion of the bowl portion 62 is, for example, ABS.
It is formed by a molding means such as injection molding using a resin material such as a resin, and is fixed to the front side of the contact plate portion 61 with a screw or the like to store prize balls (gaming balls) and stored prize balls (gaming balls). The spheres) are aligned in a row toward the bottom of the tilt (to the right in FIG. 5). Then, along the upper edge portion of the ball plate portion 62, a ball guide rail 63 for receiving the electric potential of the prize ball (gaming ball) charged in the path until it is discharged from the passage 45 is attached.

The ball guide rail 63 is made of a thin metal plate having a predetermined plate thickness, is formed into a shape shown in each drawing by a forming means such as cutting, bending, and punching, and is subjected to a predetermined surface treatment if necessary. To be done. Further, the ball guide rail 63 is bent and formed in a U-shape in cross section so as to cover the upper edge portion of the ball dish portion 62, and is fitted into the upper edge portion of the ball dish portion 62 and fixed, or It is fixed with adhesive. And
With the ball guide rail 63 attached to the upper edge of the ball dish 62, the upper surface of the ball guide rail 63 is configured to be substantially flush with the bottom surface of the ball dish 62. Further, in order to be electrically connected to the connecting plate 81, the member connecting portion 63a is provided on the ball guiding rail 63.
It extends vertically from the middle of the part and is integrally bent, and the mounting screw 83 is inserted into the member connecting hole 63b formed at the tip of the member connecting part 63a to insert the contact plate part 61a.
The connecting plate 8 is attached to the contact plate mounting boss 67 formed on the rear surface side of the
It is fixed together with 1st grade.

The main part of the backing plate portion 61 is, for example, AB.
It is formed to cover the front surface of the game auxiliary board 40 by a molding means such as injection molding using a resin material such as S resin. A through hole 64 is formed in the center of the contact plate portion 61,
The member connecting portion 6 integrally formed with the ball guide rail 63 in a state where the ball dish 62 is attached to the front side of the pad plate 61.
3a passes through the through hole 64 and is located on the back surface side of the contact plate portion 61.

A passage trough 65 is formed in the upper left portion of the backing plate portion 61 so as to be aligned with the passage 45, and prize balls discharged from the passage 45 pass through the passage trough 65 to form a bowl plate portion. It is configured to be guided to 62. Further, a through gutter earth plate 66 is attached to the through gutter 65 to receive the potential of the prize ball (gaming ball) charged in the path until it is discharged from the outlet 45. The gutter earth plate 66 is a thin metal plate having a predetermined thickness, is formed by a forming means such as cutting and bending, and is formed by performing a predetermined surface treatment as necessary. The gutter earth plate 66 covers the inner bottom surface and the inner side surface of the gutter 65, and is formed to extend vertically downward from the inner bottom surface of the gutter 65 along the front side of the pad plate 61. In the state where the ball plate portion 62 is attached to the front side of the pad plate portion 61, the ball plate rail 62 is configured to come into contact with and electrically connect to the ball guiding rail 63.

A backing plate portion mounting boss 67 is formed in the center of the back side of the backing plate portion 61 with a screw hole. The backing plate portion mounting boss 67 has a connecting plate 81 as described above. The connection plate mounting hole 81a, the intermediate washer 85, the member connecting portion 63a, and the mounting washer 84 provided on the mounting plate 83 are fastened together with the mounting screw 83. The member connecting portion 63a formed integrally with the ball guiding rail 63 is constantly in contact with the intermediate washer 85, and the intermediate washer 85 is always in contact with the connecting plate 81. Therefore, the ball guiding rail 63 and the connecting plate 81 are electrically connected to each other. Connected.

A mounting hole 48 is formed in the central portion of the front surface of the game auxiliary board 40 with a screw hole.
A connection pin 82 is attached to the. Further, the attachment hole 48 is configured such that the terminal connection portion 82b projects into the internal space of the game auxiliary board 40 in a state where the connection pin 82 is attached to the attachment hole 48. Then, the cap type terminal 76 is connected to the terminal connecting portion 82b protruding into the internal space of the game auxiliary board 40. Further, a recess 46 through which the cable 77 of the ground wire 75 passes is formed on the back surface side of the game auxiliary board 40, and a cover plate 47 is attached to cover the recess 46. A central harness through 46a and a right harness through 46b through which the cable 77 of the ground wire 75 is inserted are formed at the center of the bottom surface and the right side surface of the recess 46.

With the contact plate portion 61 covering the front surface of the game auxiliary board 40, the connection pin contact portion 81b formed on the lower end portion of the connection plate 81 is connected to the connection plate contact portion formed on the head of the connection pin 82. It contacts the contact portion 82a. At this time, the connection plate 81 is pressed by the connection pin 82 and elastically deformed, and the elastic force maintains the contact pressure with the connection pin 82. As shown in FIG. 6, on the back surface side of the contact plate portion 61, a push pin 86 having a convex spherical tip is provided on the connection pin contact portion 81b with the contact plate portion 61 covering the front surface of the game auxiliary board 40. The connection plate 81 is integrally formed so as to contact the back surface, and the contact plate portion 61 covers the front surface of the game auxiliary board 40, and the connection plate 81 is the connection pin 82 and the push pin 86.
It may be configured to be sandwiched between and. Further, the push pin 86 may be separately provided on the back surface side of the contact plate portion 61.

From this, the connection plate 81 is in constant contact with the connection pin 82 while the contact plate 61 covers the front surface of the game auxiliary board 40, so that the connection plate 81 is electrically connected to the connection pin 82. Therefore, the connection pin contact portion 81b contacts the connection plate contact portion 82a, so that the ball guide rail 63
And the gutter ground plate 66 and the ground terminal 98 are electrically connected. As a result, the prize balls (game balls) charged in the route until being discharged from the outlet 45 are the ball guide rails 6.
In contact with the 3 and the gutter earth plate 66, the prize balls (gaming balls) are grounded to the earth potential in the process of being aligned with the ball dish 62 and reaching the ball feeding device 69, and the potential is stabilized. In this state, it is supplied onto the firing rail 41.

Therefore, according to the earth connection mechanism 80 having the above-described structure, the connection plate 81 and the connection pin 82 are brought into contact with each other to be electrically connected to each other, so that the ball guide rail 63 and the gutter ground. Since the plate 66 and the ground terminal 98 are electrically connected, the ball guide rail 6 provided on the upper ball dish 6
It is not necessary to connect the ground wire 75 to 3 and connect it to the ground terminal 98, so that the ground connection can be simply made.

In the above embodiment, the connecting plate 8
1 is attached to the back side of the backing plate portion 61, and the connection pin 82 is attached to the front surface of the game auxiliary board 40 so as to be able to contact the connection plate 81, and the upper ball dish 6 covers the front surface of the game auxiliary board 40. The connection plate 81 is configured to abut the connection pin 82 in this state, but the configuration is not limited to this.
For example, as shown in FIG. 7, in a closed state where the upper ball plate 6 covers the front surface of the game auxiliary board 40, the swing member 181 is set to the swing member 1
81 from the open position where the connection pin 182 is separated from the swing member 1
You may make it rock | fluctuate to the connection position which 81 and the connection pin 182 contact | abut. That is, the swinging member 181 has a support shaft hole (not shown) into which the support shaft 183 is inserted in its central portion, and a connection pin contact portion 181 that contacts the connection pin 182 at its left end portion.
b, and having an L-shaped finger hook 181c at the upper right end, it is formed into a shape shown in FIG. 7 by a forming means such as cutting, bending, and punching from a metal plate having a predetermined plate thickness, and is formed into a screw shape. Also, the swing member 181 pivotally connected together with the metal mounting washer 184, the intermediate washer 185, and the member connecting portion 63a by the metal supporting shaft 183 swings from the open position to the connecting position, and the connecting plate abuts on one end. 182a, a terminal connecting portion 182 formed at the other end so as to be connectable to the cap-type terminal 76
a metal connection pin 18 formed in a screw shape having b
The same effect can be obtained by making it contact with 2. Further, at the left end portion of the swinging member 181, an engagement port 181d is provided instead of the connection pin contact portion 181b.
May be configured to engage.

Further, in the above embodiment, the connecting plate 8
1 is attached to the back side of the backing plate portion 61, and the connecting pin 82
Is attached to the front surface of the game auxiliary board 40 so as to be able to contact with the connection plate 81, but is not limited to this, and the connection pin 82 is attached to the back side of the contact plate portion 61 so that it can contact with the connection plate 81. The connection plate 81 may be attached to the front surface of the game auxiliary board 40.

Next, a second embodiment of the ground connection mechanism will be described with reference to FIGS. Here, FIG. 8 is a perspective view showing a state in which the ground connection mechanism 280 is disassembled, and FIG. 9 shows the upper plate 6 around the mounting portion of the ground connection mechanism 280.
10 is an enlarged partial cross-sectional view showing the state viewed from the front side of FIG. 10, FIG. 10 is an enlarged partial cross-sectional view showing the periphery of the mounting portion of the ground connection mechanism 280 seen from the back side of the upper bowl 6, and FIG. 11 is the ground connection mechanism. FIG. 12 is an enlarged plan view (partial cross-sectional view) showing the periphery of the mounting portion of the 280, and FIG.
It is a side surface enlarged view (partial sectional view) which shows the mounting part periphery of 0. The ground connection mechanism 280 of the present embodiment is different only in the shape of the ground connection mechanism 80 of the above-described first embodiment, and the other device configurations are the same, and therefore, the same parts are denoted by the same reference numerals and redundant description will be omitted. To do.

The ground connection mechanism 280 in this embodiment.
Is a swinging member 281 that is swingably attached to the back side of the backing plate portion 61 within a vertical plane, and an engagement pin 28 that is attachable to the swinging member 281 on the front surface of the game auxiliary board 40.
2, a support shaft 283 that pivotally connects the rocking member 281, and a metal mounting washer 284 that is mounted together with the rocking member 281 to facilitate the rocking of the rocking member 281 about the central axis of the shaft 283. The intermediate washer 285 and the swing member 281 swing from the swing position to the vertical position to engage with the engaging pin 282, whereby the swing member 281 and the engaging pin 282 are electrically connected. It

The oscillating member 281 is formed into a shape shown in each drawing by forming means such as cutting, bending, and punching a metal plate having a predetermined plate thickness. A supporting hole 281a is formed in the center of the swinging member 281, and the supporting hole 281a is formed.
The support shaft 283 is inserted in. The lower end portion of the swinging member 281 has an engaging opening 281b for engaging the engaging portion 2 of the engaging pin 282.
It is cut out according to the shape of 82a. Further, an L-shaped finger hook 28 is provided on the upper end of the swinging member 281.
1c is bent and formed in the back side when viewed from the front of FIG. 9, and is configured so that an operator can easily swing the swing member 281 by putting his / her finger on the finger rest 281c. Note that a cap member formed of an insulating material such as a resin material may be attached to the finger hook 281c to prevent electric shock.

The engaging pin 282 is formed by cutting a metal round bar into a screw shape, and an engaging portion 282a having an H shape in side view is formed at one end of the engaging pin 282 at the lower end portion of the swinging member 281. It is formed so as to be able to engage with the engaged port 281b. Further, a terminal connecting portion 282b is formed at the other end of the engaging pin 282 so as to be connectable to the cap-type terminal 76 of the ground wire 75. The cap-type terminal 76 of the ground wire 75 is connected to the terminal connecting portion 284a of the engagement pin 284, the other end 78 of the cable 77 of the ground wire 75 is connected to the ground terminal 98 of the terminal board 96,
The ground wire 75 is configured to ground the engagement pin 284 to the ground potential.

The support shaft 283 is formed by cutting a metal round bar into a screw shape, and the mounting washer 28 is attached from the support shaft 283 side.
4, the rocking member 281, the intermediate washer 285, and the member connecting portion 63a that extends vertically from the middle of the ball guide rail 63 and is integrally bent to form the contact plate portion 61.
The rocking member 281 is swingably supported while being fastened and fixed together with a backing plate portion mounting boss 67 formed on the back side of the rocking member.
The member connecting portion 63a integrally formed with the ball guide rail 63 is always in contact with the intermediate washer 285, and the intermediate washer 285 is always in contact with the swing member 281, so that the ball guide rail 63 and the swing member 281 are always in contact with each other. Are electrically connected.

By the way, the upper part of the back surface of the backing plate portion 61 is provided with a harness retainer 6 for protecting a wire harness (not shown) wired on the back surface side of the backing plate portion 61.
8 is provided, and the swinging member 281 is attached to the support shaft mounting boss portion 67, the swinging member 281 passes through the gap between the harness retainer 68 and the contact plate portion 61, and the upper end portion of the swinging member 281 is provided. That is, the finger hook 281c is formed so as to be located at the upper end of the harness retainer 68. A notch 68a is formed at the upper end of the harness retainer 68 so that the finger rest 281c does not interfere with the upper end of the harness retainer 68, whereby the finger rest 281c swings without interfering with the harness retainer 68. The member 281 can be swung, and the swinging range of the swinging member 281 can be restricted to facilitate the swinging operation.

Further, the hinge mechanism for supporting the upper bowl 6 with respect to the front frame 2 so as to be openable and closable is attached to the left side portion of the front frame 2 at a vertically intermediate position as shown in FIGS. 3, 9 and 10. The upper hinge member 51, the lower hinge member 52 attached to the lower left part of the front frame 2, the shaft hole portion 53 formed on the upper left rear side of the contact plate 61, and the lower left lower side of the contact plate 61. The bearing 54 and the support shaft 55 supported by the bearing 54 and the like support the upper bowl 6 so that it can be opened and closed laterally and detachably.

When the rocking member 281 is rocked from the rocking position to the vertical position while the backing plate portion 61 covers the front surface of the game auxiliary board 40, the engaging opening 281b formed in the lower end portion of the rocking member 281. Engage with the engaging portion 282a formed on the head of the engaging pin 282. At this time, since the inner side surface of the engaging portion 282a formed in the H shape in side view serves as a guide for contacting both the front and back surfaces of the swing member 281 formed in a plate shape, the engaging opening 281b is engaged. The swinging member 281 is electrically connected to the engaging pin 282 while being engaged with the 282a. Therefore, the engagement opening 281b is formed in the engagement portion 282.
By engaging with a, the ball guide rail 63, the gutter earth plate 66, and the earth terminal 98 are electrically connected. As a result, the prize balls (game balls) charged in the path until being discharged from the outlet 45 come into contact with the ball guide rails 63 and the gutter earth plate 66, and the prize balls (game balls) are transferred to the ball plate portion 62. Are grounded to the earth potential in the process of being aligned with and reaching the ball feeding device 69, and are supplied onto the firing rail 41 in a potential stable state.

Therefore, according to the earth connecting mechanism 280 having the above-described structure, the swinging member 281 has the engaging pin 282.
Since the ball guide rail 63, the gutter ground plate 66, and the ground terminal 98 are electrically connected by engaging with the ball guide rail 63, the ground wire 75 is connected to the ball guide rail 63 provided on the upper bowl plate 6. It is not necessary to connect the ground terminal 98 to the ground terminal 98, and the ground connection can be simply made.

In the second embodiment of the ground connection mechanism, the engaging portion 2 having an H-shaped side view is attached to the head of the engaging pin 282.
The swinging member 2 has a plate 82a formed to be engageable with the engaging opening 281b, and the inner side surface of the engaging portion 282a is formed in a plate shape.
Although the guides are in contact with both front and back surfaces of 81, the guide is not limited to this, and guides may be provided on the swing member side. For example, as shown in FIG. 13, a guide 381d having a U-shaped cross section is further formed at an engaging opening 381b formed at the lower end of the swinging member 381.
The same effect can be obtained as long as the inner side surface of the contact portion is configured to have the engaging portion 382a and come into contact with both the front and back surfaces of the head of the engaging pin 382 formed by cutting in the shape of a screw.

In the second embodiment of the earth connection mechanism, the swinging member 281 is swingably attached to the back side of the backing plate portion 61 within the vertical plane, and the engaging pin 282 is provided on the front surface of the game auxiliary board 40. Although it is attached so as to be able to engage with the swinging member 281, it is not limited to this, and the engaging pin 2
82 may be attached to the back side of the backing plate portion 61 so as to be engageable with the swing member 281, and the swing member 281 may be swingably attached to the front surface of the game auxiliary board 40 within the vertical plane.

Next, a third embodiment of the ground connection mechanism will be described with reference to FIGS. Here, FIG.
4 is a perspective view showing a state in which the ground connection mechanism 480 is disassembled, and FIG. 15 is a part showing a state in which the upper bowl plate 6 is open around the mounting portion of the ground connection mechanism 480 and seen from the front side of the game auxiliary board 40. FIG. 16 is an enlarged side view (partial sectional view) showing the periphery of the mounting portion of the ground connection mechanism 480. The earth connection mechanism 4 of this embodiment
80 is different only in a part of the shape of the ground connection mechanism 80 of the first embodiment and the game auxiliary board 40, and other device configurations are the same, so the same parts are denoted by the same reference numerals and duplicate description will be omitted.

The ground connection mechanism 480 in this embodiment.
Is a vertical movement member 481 which is attached to the front surface of the game auxiliary board 40 so as to be vertically movable, and an engagement pin 482 which is attached to the back side of the contact plate portion 61 so as to be engageable with the vertical movement member 481.
And an upper screw 483 for fixing the vertically moving member 481 so as to be vertically movable and for restricting the lower moving range of the vertically moving member 481.
And a lower screw 484 that fixes the up-and-down moving member 481 so as to be able to move up and down and regulates the up-and-down range of the up-and-down moving member 481
And an upper washer 485 and a lower washer 486 made of metal, which are attached together with an upper screw 483 and a lower screw 484 for facilitating the vertical movement of the vertical movement member 481, and the vertical movement member 481 moves downward from the upper movement position. By engaging with the engaging pin 482, the vertical movement member 481 and the engaging pin 482 are electrically connected.

The up-and-down moving member 481 is formed into a shape shown in each drawing by forming means such as cutting, bending, and punching a metal plate having a predetermined plate thickness. An elongated hole 481a is formed in the center of the vertical movement member 481. The elongated hole 481a is formed.
The upper screw 483 and the lower screw 484 are inserted into the.
An engaging port 481b is formed at the lower end of the vertically moving member 481.
Is formed by being cut out in conformity with the shape of the engaging portion 482a of the engaging pin 482, and further, the engaging portion that serves as a guide when the engaging opening 481b is located at the engaging portion 482a and engaged. The guide 481d extends downward from the engagement opening 481b and is formed in a V shape. Further, an L-shaped finger hook portion 481c is formed on the upper end portion of the vertical movement member 481 by bending toward the front side when viewed from the front of FIG. 15, and an operator hooks his / her finger on the finger hook portion 481c to move the vertical movement member. It is configured to easily move the 481 up and down.
Note that a cap member formed of an insulating material such as a resin material may be attached to the finger hook 481c to prevent electric shock.

The engaging pin 482 is formed by cutting a metal round bar into a screw shape, and an engaging portion 482a is formed at the head of the engaging pin 482, and an engaging opening formed at the lower end of the vertically moving member 481. It is formed so as to be able to engage with 481b. The engaging pin 482 extends vertically from the middle of the ball guide rail 63 and is integrally bent to form the member connecting portion 63a.
Is fixed to a backing plate portion mounting boss 67 formed in the center portion on the back surface side of the backing plate portion 61. At this time, since the engagement pin 482 is always in contact with the member connecting portion 63a, the engagement pin 482 is
And the ball guide rail 63 are electrically connected.

The upper screw 483 is formed by cutting a metal round bar into a screw shape, and the vertically moving member 481 together with the upper washer 485 is fixed to the upper mounting boss 448 formed on the front side of the game auxiliary board 40 so as to be vertically movable. To do. Then, the lower screw 484 is cut out and formed in a screw shape from a metal round bar, and together with the lower washer 486, the vertically moving member 481 is vertically movably fixed to a lower mounting boss 449 formed on the front side of the game auxiliary board 40. . Further, a terminal connecting portion 484 a is formed at the tip of the lower screw 484 so as to be connectable to the cap-type terminal 76 of the ground wire 75. The cap-type terminal 76 of the ground wire 75 is connected to the terminal connecting portion 484 a of the lower screw 484, and the cable 7 of the ground wire 75 is connected.
The other end 78 of 7 is connected to, for example, the ground terminal 98 of the terminal board 96, and the ground wire 75 is configured to ground the lower screw 484 to the ground potential. Although the terminal connection portion 484a is formed on the lower screw 484 so that the terminal connection portion 484a can be connected to the cap-type terminal 76, the present invention is not limited to this. The terminal connection portion 484a is formed on the upper screw 483.
May be formed so that it can be connected to the cap type terminal 76.

In the center of the front surface of the game auxiliary board 40, instead of the mounting hole 48 in the above-mentioned embodiment, the upper mounting boss 44
8 and the lower mounting boss 449 are formed with screw holes. A vertical movement member 281 is fixed to the upper mounting boss 448 and the lower mounting boss 449 by an upper screw 483 and a lower screw 484 so as to be vertically movable. Further, the lower mounting boss 449 is
With the lower screw 484 attached thereto, the terminal connecting portion 484a is configured to project into the internal space of the game auxiliary board 40. Then, the cap-type terminal 76 is connected to the terminal connecting portion 484a protruding into the internal space of the game auxiliary board 40.

When the vertical moving member 481 is fixed by the upper screw 483 and the lower screw 484 so as to be vertically movable, when the vertical moving member 481 is moved upward, the lower end of the elongated hole 481a comes into contact with the lower screw 484, and When the moving member 481 is moved downward, the upper end portion of the elongated hole 481a comes into contact with the upper screw 483, whereby the vertical movement range of the vertical movement member 481 is regulated. In addition, the lower screw 484 is a metal lower washer 4
Since the lower washer 486 is in constant contact with the vertical movement member 481, the vertical movement member 481 and the lower screw 484 are electrically connected.

On the left and right sides of the upper mounting boss 448 and the lower mounting boss 449 in the center of the front surface of the game auxiliary board 40, there are formed restricting guides 450 for restricting the lateral movement of the vertical moving member 481. Moving member 48
Since the up-and-down moving member 481 does not move left and right when the up-and-down moving member 481 is moved up and down,
82 may be engaged.

When the vertical movement member 481 is moved downward from the upper movement position while the backing plate portion 61 covers the front surface of the game auxiliary board 40, the engagement opening 48 formed at the lower end portion of the vertical movement member 481.
1b is an engaging portion 482 formed on the head of the engaging pin 482.
Positioned at a and engaged. At this time, since the engaging port 481b and the engaging portion 482a are in contact with each other, the engaging port 48
The vertical movement member 48 with 1b engaged with the engaging portion 482a.
1 and the engagement pin 482 are electrically connected. for that reason,
By engaging the engaging port 481b with the engaging portion 482a, the ball guiding rail 63, the gutter earth plate 66, and the earth terminal 98 are electrically connected. As a result, the prize balls (game balls) charged in the path until being discharged from the outlet 45 come into contact with the ball guide rails 63 and the gutter earth plate 66, and the prize balls (game balls) are transferred to the ball plate portion 62. Is grounded and grounded to the earth potential in the process of reaching the ball feeding device 69.
It is supplied onto the firing rail 41 in a stable potential. In addition, the engaging portion guide 481d extending downward from the engaging opening 481b and formed in a V-shape is used as the vertical moving member 481.
Moves downward from the upper moving position, and the engaging port 481b is moved to the engaging portion 482.
The engagement port 481b can be smoothly engaged with the engagement portion 482a because it serves as a guide when it is positioned and engaged with a.

The earth connection mechanism 480 having the above configuration
According to the above, since the up-and-down moving member 481 engages with the engaging pin 482, the ball guide rail 63, the gutter earth plate 66, and the earth terminal 98 are electrically connected to each other. It is not necessary to connect the ground wire 75 to the sphere guide rail 63 thus formed and connect it to the ground terminal 98, so that the ground connection can be simply made.

In the third embodiment of the earth connection mechanism, the vertical moving member 481 is moved downward from the upper moving position to engage the engaging pin 482, but the present invention is not limited to this, and for example, as shown in FIG. As shown in FIG. 17, the swinging member 581 may be swung from the swinging position to the vertical position to be engaged with the engaging pin 582. That is, the swinging member 581
Has a support shaft hole (not shown) into which a support shaft 583 is inserted in its central portion, and an engagement port 581 which engages with an engagement pin 582 at its lower end portion.
b, and an L-shaped finger hook 581c at the upper end, which is formed into a shape shown in FIG. 17 by a forming means such as cutting, bending, and punching from a metal plate having a predetermined plate thickness, and a cap-type terminal at the tip portion. 76. A metal support shaft 5 formed in a screw shape having a terminal connecting portion 583a formed so as to be connectable to
By 83, the swing member 581 is made of a metal mounting washer 584.
The same effect can be obtained if the lower mounting boss 549 and the lower mounting boss 549 are pivotally connected.

Further, in the third embodiment of the ground connection mechanism, the vertically moving member 481 is attached to the front surface of the game auxiliary board 40 so as to be vertically movable, and the engaging pin 482 is provided with the contact plate portion 61.
It is attached to the back side of the so that it can be engaged with the vertical movement member 481, but it is not limited to this, and the engagement pin 482
May be attached to the front surface of the game auxiliary board 40 so as to be engageable with the vertical movement member 481, and the vertical movement member 481 may be attached to the back side of the contact plate portion 61 so as to be vertically movable.

Further, in each of the above-described embodiments, the gutter earth plate 66 is attached to the gutter 65, but as shown in, for example, FIG. The ground plate 45 for the prize hole formed so as to cover the inner bottom surface of the 45 and contact the ground plate 66 for the trout gutter.
a may be provided, and further, the inner bottom surface of the prize ball payout path 34 is formed so as to cover the inner bottom surface of the prize ball payout path 34 and to be in contact with the prize ball mouth earth plate 45a. The plate 34a may be provided. In this way, in addition to the ball guide rail 63 and the gutter earth plate 66,
Since the prize ball mouth ground plate 45a and the prize ball payout route ground plate 34a are electrically connected to each other, the chances that the prize ball (gaming ball) comes into contact with each ground plate increases, and the prize ball becomes more effective. (Game ball) can be grounded to ground potential.

In each of the above-mentioned embodiments, the front frame 2 of the pachinko machine PM is taken as a representative example of the fixing member,
Then, the upper bowl plate 6 of the pachinko machine PM is taken as a representative example of the opening / closing member, and the configuration example of the ground connection mechanism provided between the front frame 2 and the upper bowl plate 6 is shown. The gaming machine provided with the fixing member and the opening / closing member to which the connection mechanism can be applied is not limited to the pachinko machine PM provided with the front frame 2 and the upper bowl plate 6. For example, the present invention can be applied to various game machines such as a slot machine provided with a frame main body, a front mask located on the front side of the frame main body and capable of opening laterally forward, and a slot machine.

[0065]

As described above, according to the ground connection mechanism of the gaming machine according to the present invention, the opening / closing side ground connecting member and the fixed side ground connecting member are brought into contact with each other to be electrically connected to each other, so that the ground sheet metal is formed. Since it is electrically connected to the ground terminal, there is no need to connect the ground wire to the ground sheet metal provided on the opening / closing member to connect to the ground terminal, and the ground connection can be made simply.

[Brief description of drawings]

FIG. 1 is a front view of a pachinko machine shown as an example of a ball game machine according to the present invention.

FIG. 2 is a rear view showing the back side of the pachinko machine.

FIG. 3 is a front view showing a state in which a glass door and an upper bowl are opened in the pachinko machine.

FIG. 4 is an exploded perspective view showing the structure of the ground connection mechanism of the first embodiment.

FIG. 5 is a plan view (enlarged partial cross-section) showing the periphery of the mounting portion of the ground connection mechanism of the first embodiment.

FIG. 6 is a side view (enlarged partial cross section) showing the periphery of the mounting portion of the ground connection mechanism of the first embodiment.

FIG. 7 is an exploded perspective view showing another form of the ground connection mechanism of the first embodiment.

FIG. 8 is an exploded perspective view showing the structure of the ground connection mechanism of the second embodiment.

FIG. 9 is a front view (partially enlarged cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism of the second embodiment.

FIG. 10 is a rear view (enlarged partial cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism of the second embodiment.

FIG. 11 is a plan view (enlarged partial cross-section) showing the periphery of the mounting portion of the ground connection mechanism of the second embodiment.

FIG. 12 is a side view (partially enlarged cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism of the second embodiment.

FIG. 13 is a plan view (partially sectional enlarged view) showing another embodiment of the ground connection mechanism of the second embodiment.

FIG. 14 is an exploded perspective view showing the structure of the ground connection mechanism of the third embodiment.

FIG. 15 is a front view (partially enlarged cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism of the third embodiment.

FIG. 16 is a side view (partially enlarged cross-sectional view) showing the periphery of the mounting portion of the ground connection mechanism of the third embodiment.

FIG. 17 is an exploded perspective view showing another form of the ground connection mechanism of the third embodiment.

FIG. 18 is a side view (enlarged cross-sectional view) showing another embodiment of the ground sheet metal.

[Explanation of symbols]

BSP back set board PA game area PM Pachinko machine 1 outer frame 2 front frame 3a, 3b Hinge member 4 Locking device 5 glass doors 6 Upper bowl 7 lower bowl 8 operation handle 9 Ball launcher 17 Engagement lever 18 hinge 19 Closing lever 20 game board 21 Veneer 22a outer rail 22b Inner rail 23 windmill 24 General prizes 25 Starting prizes 26 Grand Prize Winners 27 Out mouth 28 symbol display device 30 base frame 31 window 32 ball storage supply mechanism 33 prize ball payout mechanism 34 prize ball payout route 34a Earth plate for prize ball payout route 40 game auxiliary board 41 launch rail 42 Foul mouth 43 Lower ball dish exit 44 speakers 45 exits 46 recess 46a Central harness through 46b right harness through 47 lid plate 48 mounting holes (first embodiment) 51 Intermediate hinge member 52 Lower hinge member 53 Shaft hole 54 Bearing 55 spindle 61 Patch plate 62 Ball Plate 62a Ball removing lever 63 ball guide rail 63a Member connection part 63b Member connection hole 64 through hole 65 Tsutsuke 66 Earthing plate for trough 67 Abutment plate mounting boss 68 Harness retainer 68a cutout 69 Ball feeder 70 Lock device 71 Lock mechanism (Lock device) 72 Lock fittings (lock device) 75 ground wire 76 Cap type terminal 77 cable 78 the other end 80 Earth connection mechanism (first embodiment) 81 Connection plate 81a Connection plate mounting hole 81b Connection pin contact part 82 Connection pin 82a Connection plate contact part 82b terminal connection part 83 Mounting screw 84 mounting washer 85 Intermediate washer 91 Main control board 92 prize ball control board 93 Lamp / Voice control board 94 power board 95 Relay board 96 terminal board 97 prize ball cassette 98 ground terminal 181 Rocking member (another form of the first embodiment) 181a Support hole 181b Connection pin contact part 181c Finger rest 181d Engagement port 182 connection pin (another form of the first embodiment) 182a Connection plate contact part 182b terminal connection part 184 mounting washer (another form of the first embodiment) 185 Intermediate washer (another form of the first embodiment) 280 Earth connection mechanism (second embodiment) 281 Swing member 281a Support shaft hole 281b Engagement port 281c Finger rest 282 Engagement pin 282a engaging part 282b terminal connection part 283 spindle 284 mounting washer 285 Intermediate washer 381 Swing member (another form of the second embodiment) 381b Engagement port 381d guide 382 engagement pin (another form of the second embodiment) 382a engagement part 448 Upper mounting boss (third embodiment) 449 Lower mounting boss (third embodiment) 450 Regulation Guide (Third Example) 480 Earth connection mechanism (third embodiment) 481 Vertical movement member 481a long hole 481b Engagement port 481c finger rest 481d Engagement part guide 482 engagement pin 482a engagement part 483 upper screw 484 lower screw 484a terminal connection part 485 upper washer 486 lower washer 581 Rocking member (another form of the third embodiment) 581b Engagement port 581c Finger rest 583 spindle (another form of the third embodiment) 583a terminal connection part 584 Mounting washer (another form of the third embodiment)

Claims (2)

[Claims] 1. A fixing member, and an opening / closing member attached to the fixing member so as to be capable of being opened / closed or detachably attached and capable of being closed and held, and provided for a game in a state where the opening / closing member is closed and held by the fixing member. In the gaming machine, the opening / closing member is provided with a grounding metal plate and an opening / closing side grounding connection member electrically connected to the grounding metal plate, and the fixing member is electrically connected to a grounding terminal. A side ground connection member is provided, and in a state where the opening / closing member is closed and held by the fixing member,
A game machine characterized in that the open / close side ground connection member and the fixed side ground connection member are in contact with each other and electrically connected to each other, so that an electric charge charged on the ground sheet metal can be ground-faulted. Ground connection mechanism. 2. A fixing member, and an opening / closing member attached to the fixing member so as to be opened / closed or detachable and capable of being closed and held, and provided for a game in a state where the opening / closing member is closed and held by the fixing member. In the gaming machine, the opening / closing member is provided with a grounding metal plate and an opening / closing side grounding connection member electrically connected to the grounding metal plate, and the fixing member is electrically connected to a grounding terminal. A side ground connection member is provided, and in a state where the opening / closing member is closed and held by the fixing member,
The opening / closing-side ground connection member and the fixed-side ground connection member are in contact with each other and electrically connected to each other so that the electric charge charged in the ground sheet metal can be ground-faulted, and the opening / closing-side ground connection member An earth connection mechanism for a gaming machine, which is configured so that connection / disconnection of an electric connection with the fixed side earth connection member can be switched.