JPH0779873B2 - Ground wiring structure for pachinko machines - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground wiring structure in a pachinko machine having a mechanism controlled by an electronic circuit.

(Prior Art) Recently, many pachinko machines equipped with a mechanism for controlling the operation of a winning device for a pachinko ball by an electronic circuit.

By the way, a lot of pachinko balls are flowing inside the pachinko machine during the game. The pachinko balls are charged by the contact with the passage walls and the collision between the balls as they move in the passage.
Eventually, the pachinko ball is charged with a high potential of static electricity, but since the capacity of the pachinko ball is limited, the pachinko ball causes a discharge phenomenon, and the electric circuit may be affected by noise due to this discharge, and the electronic circuit may malfunction.

In order to prevent this, conventionally, in such a pachinko machine, a resin containing conductive carbon is used for the box of the electronic circuit board, or a metal cover or a conductive board is used for the mechanism plate having a ball passage or the back of the game board. I used to attach a plastic plate.

(Problems to be Solved by the Invention) However, when the pachinko balls come to flow frequently, the static electricity amount of the pachinko balls also sharply increases as a whole,
The metal cover or the like as described above cannot prevent the discharge phenomenon of the pachinko ball. Therefore, it is unavoidable that noise occurs and the electronic circuit malfunctions.

On the other hand, JP-A-61-29377 discloses that "at least a part of a ball passage through which a pachinko ball passes, a conductive member provided so as to be in contact with the pachinko ball, and the conductive member is electrically connected. And a grounding means that is connected and releases the electric potential of the conductive member. " In this device, the static electricity carried by the pachinko ball is taken away by the conductive member and released through the grounding means which is a lead wire.

Similarly, as a conventional technique for discharging a charged pachinko ball to the outside, Japanese Utility Model Publication No. 56-30975 and Japanese Utility Model Publication No. 60-1 are available.
Those described in Japanese Patent No. 3174 and Japanese Utility Model Laid-Open No. 60-102075 are known.

However, these things will provide a way to escape the static electricity of the charged pachinko balls, so there is a temporary effect, but it is not possible to prevent the discharge phenomenon between the pachinko balls, therefore noise occurs, It was not possible to completely eliminate the malfunction of the electronic circuit.

The present invention has been made in view of such circumstances, and is provided in various places such as an outer frame that is a component of a pachinko machine, a front frame openably and closably attached to the outer frame, or a mechanism plate having a ball passage. By using the conductor that has the function of discharging static electricity, it is possible to prevent the electric discharge between the pachinko balls flowing in the ball passage to suppress the generation of noise and to quickly discharge the static electricity charged on the pachinko balls to the outside. It is intended to provide a ground wiring structure in a pachinko machine.

(Means for Solving Problems) That is, according to the present invention, a metallic stopper provided on a prize ball cylinder to which a replenishing ball is replenished and a metal pin for opening and closing provided on a mechanism plate are lead wires. , The pins are fitted to a metal boss portion provided on the frame of the front frame, and the metal plate is attached to the boss portion and the surface of the lower game board, and the metal launch rail is screwed to the metal plate. Is connected by a lead wire, the stopper that the replenishing ball contacts and the launch rail that the hitting ball contacts are electrically connected, and further provided around the frame of the front frame from the metal plate. The ground wiring structure of the pachinko machine is characterized in that the wiring is grounded to the conductor of the outer frame through the metal frame.

(Effect of the Invention) In this ground wiring structure, various conductor lead wires made of metal provided on the mechanism plate, the front frame and the lower game board are connected, and provided on the prize ball cylinder to which the supply balls are supplied. Since the metal stopper and the metal launch rail screwed to the metal plate attached to the surface of the lower game board are electrically connected, it is a pachinko ball that contacts the stopper. It is possible to eliminate the potential difference between a certain supply ball and a hitting ball that is a pachinko ball that contacts the launch rail, and it is possible to prevent the generation of noise due to spark discharge between the pachinko balls.

Then, the static electricity charged on the pachinko ball is discharged from the metal plate to the outside through a metal frame provided around the frame of the front frame to a conductor of the outer frame.

(Examples) Hereinafter, specific examples of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of a pachinko machine disassembled into its constituent parts. The pachinko machine has a wooden outer frame (1) and front frame (2), a front plate (4) having a ball saucer (41), and It is composed of respective components of a metal frame (3) into which a glass plate is fitted, a lower game board (6), and a mechanism plate (5) having a ball passage. An iron plate (11) is attached to the outer frame (1) by screwing the upper and lower portions of one side edge. A boss portion (12) is provided on the iron plate (11), and a metal pin (21) is provided at the upper and lower portions of one side edge of the front frame (2) so as to correspond to the boss portion (12).
Is provided. The front frame (2) is attached to the outer frame (1) in an openable and closable manner by fitting the pin (21) and the boss (12). A lower game board (6) is screwed to the rear surface of the front frame (2) together with a frame body (7) into which an upper game board (not shown) is fitted. On the surface of the front frame (2), a front plate (4) having a ball tray (41) and a metal frame (3) into which a glass plate is fitted are attached by a hinge structure so as to be openable and closable. Further, a frame body (7) screwed to the back surface of the front frame (2).
A mechanism plate (5) having a ball passage that can be attached and detached by a lever (not shown) is attached to this.
Further, the frame body (7) is provided with a metal boss portion (71), and the mechanism plate (5) is provided with a metal pin (51). The pin (51) and the boss portion (71) are provided. The mechanism plate (5) is attached to the frame body (7) so as to be openable and closable by fitting with the.

Of these components, the frame (7) into which the upper game board is fitted is made of synthetic resin, and the surface of the lower game board (6) and the launch rail (8) screwed to this are made of metal conductor. Has been done. The front plate (4) having the ball tray (41) is made entirely of a conductor made of metal except for the ball tray (41) made of synthetic resin. Further, the metal frame (3) into which the glass plate is fitted is made of a conductor made of metal. As shown in FIG. 2, an outer peripheral frame (22) serving as a metal conductor is attached to the front surface of the front frame (2) around the metal frame (3) and the front plate (4). This perimeter frame (22)
The metal frame (3) and the front plate (4) are electrically connected at the hinge. The mechanism plate (5) having a ball passage is made of synthetic resin, but the ball tank (52) for storing pachinko balls and the ball passage cover (53) for discharging prize balls contain carbon. The synthetic resin or synthetic resin plate is used.

Now, the conductors of the components of the pachinko machine are connected as follows.

First, as shown in FIG. 3, one end of the lead wire (9a) is attached to the metal measuring stopper (55) attached to the prize ball cylinder (54) which is a part of the ball passage of the mechanism plate (5). Is connected,
The other end of the lead wire (9a) is connected to the lower pin (51) of the mechanism plate (5). As a result, the lower pin (51) is electrically connected to the lower boss portion (71) of the frame body (7) fitted to the back surface of the front frame (2). Next, the fourth
As shown in FIG. 5 and FIG. 5, one end of the lead wire (9b) is connected to the lower boss portion (71) of the frame body (7), and the metal plate (61 attached to the surface of the lower game board (6). ) Is connected to the left end (Fig. 5) of the lead wire (9b). further,
As shown in FIG. 5 and FIG. 6, one end of the lead wire (9c) is connected to the right end (FIG. 5) of the metal plate (61) attached to the surface of the lower game board (6), and the front frame The other end of the lead wire (9c) is connected to the metal frame (23) around the frame body (7) attached to the back surface of (2). Next, as shown in FIG. 7, one end of the lead wire (9d) is connected to the metal frame (23), and the lead wire (9d) is connected to the opening / closing lever (31) of the metal frame (3).
The other end of is connected. The open / close lever (31) is an outer peripheral frame (22) attached to the surface of the front frame (2) (Fig. 2).
Is electrically connected to. Further, the outer peripheral frame (22), the metal frame (3) and the front plate (4) are electrically connected at the hinge portion. On the other hand, the metal frame (23) is locked to the mounting bracket (13) of the outer frame (1) as shown in FIG.
It is electrically connected to the outer frame (1).

In this ground wiring structure, the mechanism plate (5),
Lead wires (9a) to (9c) are connected to various metal conductors provided on the front frame (2) and the lower game board (6),
Metal launching screwed to a metal stopper (55) provided on the prize ball cylinder (54) to which the supply balls are supplied and a metal plate (61) attached to the surface of the lower game board (6) It has a structure in which the rail (8) is electrically connected. Therefore, the electric potential is adjusted to be the same between the supply ball, which is a pachinko ball that contacts the stopper (55), and the hit ball, which is a pachinko ball that contacts the launch rail (8).

Then, the metal plate (61) is further grounded to the mounting bracket (13) of the outer frame (1) through the metal frame (23) provided around the frame body (7) of the front frame (2). Therefore, the static electricity charged in the pachinko ball is released to the outside and adjusted so that the electric potential of the pachinko ball does not rise.

(Effects of the Invention) As described above, according to the present invention, the metal stopper provided on the prize ball cylinder to which the supply balls are supplied and the metal plate attached to the surface of the lower game board are screwed to each other. Since it is configured to be electrically connected to the metal launch rail, the potential difference between the supply ball, which is a pachinko ball that contacts the stopper, and the hit ball, which is a pachinko ball that contacts the launch rail, is It is possible to prevent the noise from occurring due to the spark discharge between the pachinko balls and prevent the malfunction of the electronic circuit due to the noise.

In addition, the static electricity charged on the pachinko ball can be quickly released to the outside by using the conductor that has the action of releasing static electricity used in various places such as the outer frame, front frame, and mechanism plate of the pachinko machine. Have an effect.

[Brief description of drawings]

1 is an exploded perspective view showing components of a pachinko machine, FIG.
The figure shows the front view of the pachinko machine, and Figs. 3 to 7 show an example of the electrical connection structure between the conductors provided in the components of the pachinko machine. Fig. 3 shows the conductors on the back surface of the mechanism board. Partial front view showing the connecting structure between each other, FIG. 4 is a partial perspective view showing the connecting structure between the conductors from the mechanism plate to the lower game board, and FIG. 5 is each connecting from the mechanism plate to the lower game board front frame. Partial front view showing the connection structure of the conductors, FIG. 6 is a partial front view showing the connection structure of the conductors from the lower game board to the front frame, and FIG. 7 is the front frame to the metal frame and front plate. It is a partial perspective view which shows the connection structure of each conductor. Explanation of symbols 1 ... outer frame, 2 ... front frame, 3 ... gold frame, 4 ... front plate,
5 ... Mechanism board, 6 ... Lower game board, 9a, 9b, 9c, 9d ......
Lead.

Claims (1)

[Claims] 1. A metal stopper provided on a prize ball cylinder to be supplied with a supply ball and a metal pin for opening and closing provided on a mechanism plate are connected by a lead wire, and the pin is connected to a frame of a front frame. The supply ball is fitted to the provided metal boss part, and the boss part and the metal plate attached to the surface of the lower game board and to which the metal launch rail is screwed are connected by a lead wire. Is electrically connected to the launch rail, which is in contact with the ball, and the grounding wire is further connected from the metal plate to the conductor of the outer frame through the metal frame provided around the frame body of the front frame. The ground wiring structure of the pachinko machine, which is characterized in that