JP2002136751A - Antistatic structure for pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily prevent the generation of various faults due to static electricity by easily conducting a game panel and a glass plate holding frame and surely releasing the static electricity. SOLUTION: A conductive member 20 in contact with the game panel 4 and the glass plate holding frame 5 is provided on the inner peripheral surface of a front surface frame 1 moldedly using plastics.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic structure for preventing a pachinko game machine from being charged with static electricity.

[0002]

2. Description of the Related Art A front frame of a pachinko game machine to which a game board made of plywood is detachably mounted is generally formed of plastic, and a glass plate holding frame and an upper plate are hinged to the front of the front frame so as to be openable and closable. This constitutes a pachinko gaming machine.

As is well known, a belt-shaped stainless steel firing rail is nailed on the front of the game board, and a number of nails are arranged inside the firing rail. And the like are mounted on the game board, and a hit ball flows violently on the front face of the game board during the game. For this reason, static electricity is likely to be generated, and this static electricity may accumulate and cause a high voltage current to flow to a game control circuit or the like, which may cause malfunction. Therefore, countermeasures against static electricity, such as connecting a ground wire to the game board, have conventionally been taken.

[0004]

However, since the game board is detachably mounted on the front frame by a clamp so that it can be replaced, if the ground wire is pulled out from this board, the connection becomes ambiguous. There is a problem in that it is easy to take countermeasures against static electricity in many cases. An object of the present invention is to provide an antistatic structure of a pachinko gaming machine which can solve the above-mentioned problem and can naturally take measures against static electricity by mounting a game board on a front frame.

[0005]

For this purpose, an antistatic structure of a pachinko game machine according to the present invention comprises a conductive member which is in contact with a game board and a glass plate holding frame on an inner peripheral surface of a front frame formed of plastic. Is provided.
Further, the present invention is characterized in that in the above antistatic structure, the conductive member comes into contact with a firing rail of the game board by mounting the game board. Further, the present invention is characterized in that in the above antistatic structure, the conductive member elastically comes into contact with a firing rail of the game board by mounting the game board. Further, the present invention is characterized in that in the above antistatic structure, the conductive member comes into contact with the metal frame portion of the glass plate holding frame by closing the glass plate holding frame. Further, the present invention is characterized in that in the above antistatic structure, the conductive member elastically comes into contact with a metal frame portion of the glass plate holding frame by closing the glass plate holding frame.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a pachinko gaming machine according to the present invention, wherein 1 is a front frame hinged to one side of an outer frame 2 so as to be openable and closable by a bearing 3, and 4 is a game board mounted on the front frame from the back side. Reference numeral 5 denotes a glass plate holding frame hinged so as to be openable and closable by a bearing piece 6 provided on one side edge of the front surface of the front frame, and 7 is provided below the glass plate holding frame 5 on the front surface of the front frame 1. An upper plate 8 is a lower plate provided further below the upper plate on the front surface of the front frame 1, and 9 is a hitting / launching handle provided at a lower corner of the front surface of the front frame 1.

The front frame 1 is made of plastic and, as shown in the horizontal sectional view of FIG. 2, is formed in a frame shape with an enlarged rear side so that the game board 4 can be attached to the inside. . Reference numeral 10 denotes a clamp provided for fixing the game board 4. The game board 4 is made of plywood, a belt-like stainless steel firing rail 11 is nailed on the front surface, and a number of nails 12 are arranged inside the firing rail 11.
3, electrical components such as a display 14, a ball detection sensor and the like are mounted.

The glass plate holding frame 5 is formed by attaching a resin decorative plate 17 to the surface of an iron plate 16 and forming a metal frame portion 18 having a U-shaped cross section on the inner peripheral edge of the iron plate 16. The plate glass 19 is held by the portion. Reference numeral 15 denotes a key member for keeping the glass plate holding frame 5 in a closed state.

In this embodiment, the conductive member 20 is fixed to the inner peripheral surface of the front frame 1 and the conductive member is fixed to the outer surface of the firing rail 11 of the game board 4 and the metal frame of the glass plate holding frame 5. 18 outer surface. The conductive member 20 has a pair of elastically bent pieces 22 and 23 integrally formed on both side edges of a substrate portion 21 made of a stainless steel thin plate. When the game board 4 is mounted on the front frame 1, one of the elastically bent pieces is formed. The piece 22 elastically contacts the outer surface of the firing rail 11 and the other elastic bent piece 23 elastically contacts the outer surface of the metal frame 18 of the glass plate holding frame when the glass plate holding frame 5 is closed. The contact can make electrical connection between the game board 4 and the glass plate holding frame 5. In addition,
The conductive member 20 is fixed to the inner peripheral surface of the front frame 1 by a double-sided adhesive tape 24 attached to the back surface of the substrate 21.

As described above, the game board 4 and the glass plate holding frame 5
Is conducted, the static electricity generated on the game board 4 is released to the glass plate holding frame 5 and the potential difference is eliminated, so that various troubles such as malfunctions caused by the static electricity are eliminated.

The bearing 3 and the glass plate holding frame 5
Is further conducted, and a ground wire is connected to the bearing 3 so that a more thorough countermeasure against static electricity can be obtained. In addition, if the plastic plate (so-called cell plate) stuck on the entire surface of the game board 4 is made conductive, the firing rail 11 and other mounted components are electrically connected, and the static electricity of the game board 4 is reduced. Can be more completely escaped.

In this embodiment, the game board 4 is mounted from the back side of the front frame 1, but the game board 4 is mounted from the front side of the front frame 1 as shown in FIG. Is also good. In this case, by forming the notch 25 in a part of the game board 4, collision between the conductive member 20 and the game board 4 can be avoided, and the firing rail 11 and the elastic bent piece 22 can be brought into contact. Becomes Also, the shape of the conductive member 20 is not limited to this embodiment.

The front frame 1 may be made of a plywood as well as a plastic, so that the measures of the present invention are effective because the front frame 1 has an insulating property.

In the above embodiment, the conductive member 20 is provided with the elastic portions (elastic bent pieces 22 and 23). However, since the glass plate holding frame 5 and the firing rail 11 have elasticity by nature, they are not necessarily conductive. The elastic member 20 need not be provided with such an elastic portion.

In another embodiment of the present invention shown in FIGS. 5 and 6, a chevron-shaped conductive member 20 is fixed by screws 26. In this case, the glass plate holding frame 5 and the firing rail are provided on both slopes of the chevron. 11 are electrically connected to each other by making elastic contact with each other, and the charging is smooth.

FIG. 7 shows a wedge-shaped conductive member 2 which is suitable for mounting the game board 4 from the front side of the front frame 1.
In this case, the glass plate holding frame 5 and the firing rail 11 are in elastic contact with each other on the slope. Also, as shown in FIG.
By providing the notch 27 near the edge which does not affect the firing of one ball, this portion increases elasticity, and it is also possible to make the conductive member 20 elastically contact.

[0017]

As described above, the antistatic structure of a pachinko game machine according to the present invention is characterized in that a plastic member is provided on the inner peripheral surface of the front frame by providing a conductive member in contact with the game board and the glass plate holding frame. By simply mounting the game board while sandwiching the front frame made of steel, the game board and the glass plate holding frame can be conducted without difficulty and static electricity can be reliably released, so it is easy to generate various obstacles caused by static electricity Has a beneficial effect that can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a pachinko gaming machine according to an embodiment of the present invention when a glass plate holding frame is opened.

FIG. 2 is a horizontal sectional view showing an embodiment of the pachinko gaming machine of the present invention.

FIG. 3 is an enlarged view of a main part of FIG. 1;

FIG. 4 is a horizontal sectional view showing another embodiment of the pachinko gaming machine of the present invention.

FIG. 5 is a perspective view of a main part showing another embodiment of the pachinko gaming machine of the present invention.

FIG. 6 is a horizontal sectional view showing another embodiment of the pachinko gaming machine of the present invention.

FIG. 7 is a horizontal sectional view showing another embodiment of the pachinko gaming machine of the present invention.

FIG. 8 is a front view of a firing rail of a game board showing the embodiment of the pachinko gaming machine of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front frame 4 Game board 5 Glass plate holding frame 6 Bearing piece 11 Launch rail 18 Metal frame part 19 Sheet glass 20 Conductive member 22, 23 Elastic bending piece

Claims (5)

[Claims] 1. An antistatic structure for a pachinko game machine, wherein a conductive member is provided on an inner peripheral surface of a front frame to contact a game board and a glass plate holding frame. 2. The antistatic structure of a pachinko game machine according to claim 1, wherein the conductive member comes into contact with a firing rail of the game board by mounting the game board. 3. The antistatic structure of a pachinko game machine according to claim 1, wherein the conductive member elastically comes into contact with a firing rail of the game board by mounting the game board. 4. The antistatic structure of a pachinko game machine according to claim 1, wherein the conductive member comes into contact with a metal frame portion of the glass plate holding frame by closing the glass plate holding frame. 5. The antistatic device of a pachinko game machine according to claim 1, wherein the conductive member elastically contacts the metal frame of the glass plate holding frame by closing the glass plate holding frame. Construction.