JPH0641578Y2 - Ground wiring structure for pachinko machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) The present invention relates to a ground wiring structure provided in a pachinko machine having a mechanism controlled by an electronic circuit.

(Prior Art) Recently, many pachinko machines have been provided with a mechanism for controlling the operation of a winning device or the like 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 with static electricity due to contact with the partition walls of the ball passage and collision of the pachinko balls with each other as the pachinko balls move within the ball passage. Eventually, the pachinko ball is charged with a high potential of static electricity, causing a discharge phenomenon. Due to the discharge from the pachinko ball, the electronic circuit sometimes receives noise and malfunctions.

In order to prevent electric discharge to the electronic circuit by such a pachinko ball, in the conventional pachinko machine, the box of the electronic circuit board is formed of a conductive resin containing carbon, a mechanism plate having a ball passage or a game. A metal cover or a conductive resin plate was attached to the back of the board.

(Problems to be solved by the invention) However, when the pachinko balls frequently flow in the pachinko machine, the static electricity amount of the pachinko ball also sharply increases as a whole, and depending on the metal cover as described above, the electronic information generated by the pachinko balls may be increased. It is not possible to prevent discharge to the circuit, and thus it is not possible to prevent malfunction of the electronic circuit due to noise.

On the other hand, Japanese Patent Laid-Open No. 61-29377 discloses, "In a ball game machine that includes a ball passage for guiding a pachinko ball and an electronic circuit used for game control, to hit and play a pachinko ball, At least a part of the ball passage is provided with a conductive member provided so as to be in contact with the pachinko ball, and a grounding means electrically connected to the conductive member and releasing the potential of the conductive member. Characteristic, ball game machine. "Is described. In this pachinko machine, static electricity charged on a pachinko ball is discharged to a conductive member and escaped via a grounding means composed of 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. 60-131 are disclosed.
Those described in Japanese Patent Publication No. 74 and Japanese Utility Model Publication No. 60-102075 are known.

The present invention pays attention to the potential difference between the exit ball and the supply ball for a charged pachinko ball, effectively prevents the malfunction of the electronic circuit due to noise, and easily adopts the structure for completely discharging the static electricity charged in the pachinko ball. An object of the present invention is to provide a grounding wiring structure for a pachinko machine that can be used.

(Means for Solving the Problems) In order to solve the above problems, the means adopted by the present invention is
As shown in FIG. 3 to FIG. 3, “A metal rotating lid (13) provided on the prize ball cylinder (12) to which the supply balls are replenished in order to equalize the potentials of the supply balls and the exit balls. And the metal plate (16) provided on the ball receiving portion (14) of the mechanism plate (10), which is the discharge part of the ball, are directly electrically connected, and the mechanism plate (10) is attached to the frame body. This is an adhesive wiring structure for a pachinko machine characterized in that the mounting metal fitting (15) for this is grounded.

(Operation) The present invention has the following operations by adopting the above-mentioned means.

The rotary lid (13) and the metal plate (16) are electrically directly connected to each other, and the ball coming out of contact with the metal plate (16) of the ball receiving portion (14) and the rotary lid (13) are contacted with each other. It is possible to eliminate the potential difference from the replenishing ball, and it is possible to prevent the generation of noise due to the spark discharge between the pachinko balls.

Then, the pachinko ball is moved from the prize ball tank (18) to the ball passage (1
Static electricity charged on the pachinko ball while moving to the prize ball cylinder (12) through 1) is discharged to the rotary lid (13) when the pachinko ball comes into contact with the rotary lid (13), and is attached. It flows to the metal fitting (15). Moreover, the static electricity charged on the pachinko ball while the pachinko ball falls from the prize ball cylinder (12) to the ball receiving part (14) causes the pachinko ball to contact the metal plate (16) of the ball receiving part (14). Is discharged to the metal plate (16) of the ball receiving part (14) and flows to the mounting bracket (15).

(Embodiment) Hereinafter, the present invention will be described in detail according to an embodiment shown in the drawings.

However, the shape of the components described in this example,
Unless specifically stated, the relative position and the like are not intended to limit the scope of the present invention thereto, but are merely illustrative examples.

FIG. 4 is an exploded perspective view of the pachinko machine disassembled into its respective components. The pachinko machine is a front frame (30) having a wooden outer frame (20), a lower game board (31) and a frame body (32). ), A metal frame (42) in which a glass plate is fitted, a front plate (40) having a ball tray (not shown), and a mechanism plate (1) having a ball passageway (11).
It is composed of each component of (0).

As shown in FIGS. 1 to 3, the mechanism plate (10) includes a rotating lid (13) made of metal and attached to a prize ball cylinder (12) which is a part of the ball passageway (11), and a ball. Ball passage (1
1) has a ball receiving portion (14) and a mounting bracket (15) provided with a pin (15a) for mounting the mechanism plate (10) on the frame body (32) in an openable and closable manner. There is.

One end of the rotating lid (13) is axially mounted above the prize ball cylinder (12) so that the claw portion (13a) can move back and forth into the entrance of the prize ball cylinder (12). One end of the drive shaft (13b) is attached to the mechanical plate (1
It is designed to slightly project to the back surface of (0). In addition,
The turning shaft (13b) is made of metal similarly to the turning lid (13), and the turning shaft (13b) and the turning lid (13) are electrically connected.

The rotating lid (13) is for ejecting a predetermined number of prize balls, for example, 13 each together with a stopper (18) having a protrusion (19) provided below the prize ball cylinder (12). The pachinko balls flowing into the prize ball cylinder (12) from the prize ball tank (18) provided above the mechanism plate (10) are stopped at a predetermined number. In the rotating lid (13), the claw portion (13a) is usually retracted outside the entrance of the prize ball cylinder (12), and the stopper (13) is projected so as to project into the prize ball cylinder (12). 18) is suppressed, so the pachinko balls are prize balls (1
It flows into 2), and 13 pachinko balls can be stored in the prize ball cylinder (12). On the other hand, when winning, the claw (13a) rotates so as to project into the entrance of the prize ball cylinder (12), and the rotation lid (13) rotates, so that the stopper (18) is released from the restrained state. The candy, the protrusion of the stopper (19) is pushed out of the prize ball cylinder (12) by the weight of the pachinko ball, so that only the 13 pachinko balls stored in advance in the prize ball cylinder (12) are discharged. Has become.

The ball receiving part (14) is provided so as to communicate with the ball receiving plate of the front plate (40), and a metal plate (16) is attached to the surface thereof. The metal plate (16) has its claw portion (16a) folded along the partition wall of the ball receiving portion (14) to form a ball receiving portion (1).
4), and a slight gap is formed between the metal plate and the partition wall of the ball receiving portion (14) on the back surface side of the mechanism plate (10).

The mounting bracket (15), as shown in FIG. 4, is a mechanism plate (10).
It is mounted above and below one side. The mounting bracket (15) attached to the mechanism plate (10) is a frame (32).
The pin (15a) is inserted into the insertion holes of the metal fittings (33) attached above and below the mechanism plate (10) on the frame (323) with the pin (15a) as an axis. On the other hand, it can be opened and closed. In addition, in this embodiment, the outer frame (20), the front frame (30), the front plate (40)
Etc. are provided with a conductive member, and the conductive member and the mounting bracket (15) are electrically connected,
By increasing the capacity that can accept the static electricity discharged from the pachinko ball, the static electricity charged in the pachinko ball can be completely released. That is, in the present embodiment, the mounting bracket (15) serves as a relay point through which the static electricity discharged from the pachinko ball escapes to the conductive member provided on the outer frame (20) or the like.

The body (17a) of the earth member (17) is formed by bending a band-shaped metal plate, and one end of the body is fixed to a mounting bracket (15) attached to one lower side of the mechanism plate (10) with screws. The other end is fitted into a slight gap between the metal plate (16) attached to the ball receiving portion (14) and the partition wall of the ball receiving portion (14). Also, one end of the lead wire (17b) is fixed to the main body (17a) by soldering, and the lead wire (17b) is
On the other end (free end) of b), a metal fitting (17c) attached to the end of the rotary shaft (13b) slightly protruding from the back surface of the mechanism plate (10) is fixed. This ground member (17)
Is the other end of the main body (17a) is screwed to the mounting bracket (15) so that one end of the main body (17a) is fitted into the gap between the partition of the ball receiving section (14) and the metal plate (16). Also lead wire (17b)
The metal plate (16) of the ball receiving part (14) can be very easily attached only by attaching the metal fitting (17c) to the rotating shaft (13b) of the rotating lid (13).
Also, the rotating lid (13) and the mounting fitting (15) can be electrically connected.

Next, the flow of static electricity charged on the pachinko ball in the pachinko machine to which the earth member (17) is attached will be described.

From the prize ball tank (18) through the ball passage (11), the prize ball cylinder (1
The pachinko sphere charged with static electricity while moving to 2) has a claw portion (13a) of the rotating lid (13) protruding into the entrance of the prize ball cylinder (12) when the rotating lid (13) is rotated. ) Contact. At this time, the static electricity charged on the pachinko ball is discharged to the rotating lid (13). At this time, static electricity is discharged because the rotating lid (1
3) Not only the pachinko ball that comes into direct contact with the rotating lid (1
The pachinko ball in contact with the pachinko ball that is in contact with 3) also has static electricity that rotates through the pachinko ball that is the conductor.
3) is discharged.

The static electricity discharged to the rotating lid (13) is passed through the lead wire (17b) connected to the rotating shaft (13b) to the earth member (17).
Flow to the main body (17a) of the outer frame (20) from this main body (17a)
Flows to the mounting metal fitting (15) which is a relay point to the conductive member provided on the other side. The static electricity that has flowed to the mounting metal fittings flows to a conductive member provided on the outer frame (20) and the like, and the static electricity that has been charged on the pachinko ball is surely released.

Further, the pachinko balls that are discharged from the prize ball cylinder (12) and are charged with static electricity while falling from the prize ball cylinder (12) to the ball receiving portion (14) fall to the ball receiving portion (14), and the metal plate. Contact (16).
At this time, the static electricity charged on the pachinko ball is generated by the metal plate (16).
Is discharged to.

The static electricity discharged to the metal plate (16) flows through the main body (17a) to the mounting bracket (15) which is a relay point to the conductive member provided in the outer frame (20) and the like. The static electricity that has flowed to the mounting metal fittings flows to a conductive member provided on the outer frame (20) and the like, and the static electricity that has been charged on the pachinko ball is surely released.

The entrance of the prize ball cylinder (12) provided with the swivel lid (13) is the pachinko ball that has passed through the prize ball tank (18) and the ball passageway (11) where contact with the partition wall and collision of the pachinko balls are severe. A ball receiving part (14) which is a passage point of a ball and is provided with a metal plate (16)
Is a passing point of a pachinko ball falling from the prize ball cylinder (12) while violently contacting the partition wall and violently colliding with each other. By discharging the static electricity charged in the pachinko balls at two places where the pachinko balls are very easily charged, the static electricity can be released very efficiently.

(Effects of the Invention) According to the present invention as described above, according to the above configuration, the rotating lid and the metal plate are electrically directly connected to each other, and the ball coming out of contact with the metal plate of the ball receiving portion and the rotating plate. It is possible to eliminate the potential difference between the replenishing ball that comes into contact with the moving lid, and to prevent generation of noise due to spark discharge between the pachinko balls.

Then, the mounting bracket that can discharge the static electricity charged on the pachinko ball to the rotating lid when the pachinko ball contacts the rotating lid and serve as a relay point to the conductive member provided on the outer frame or the like. Can escape to. Further, when the pachinko ball comes into contact with the metal plate of the ball receiving portion, it is possible to discharge the static electricity to the metal plate of the ball receiving portion and quickly dissipate the static electricity to the mounting bracket that can serve as a relay point.

[Brief description of drawings]

FIG. 1 is a partially enlarged rear view showing a mechanism plate of a pachinko machine to which a ground wiring structure according to the present invention is applied, FIG. 2 is a partially enlarged front view of the mechanism plate of FIG. 1, and FIG. 3 is FIG. FIG. 4 is a partially enlarged perspective view showing the mechanism plate and the grounding member of FIG. 4, and FIG. 4 is an exploded perspective view showing the pachinko machine. Explanation of reference numerals 10 …… Mechanism plate, 11 …… Ball passage, 12 …… Award ball cylinder, 13 …… Rotating lid, 13a …… Claw portion, 13b …… Rotating shaft, 14 …… Ball receiving portion, 15
...... Mounting bracket, 15a ...... Pin, 16 …… Metal plate, 16a …… Claw part, 17 …… Grounding member, 18 …… Award ball tank, 17a …… Main body, 17b …… Lead wire, 17c …… Metal fitting , 18 …… stopper, 19 …… projection, 20 …… outer frame, 30 …… front frame, 31 …… lower game board, 32 …… frame body, 33 …… metal fittings, 40 …… front plate, 41…
… Ball saucer, 42 …… Gold frame.

Claims (1)

[Scope of utility model registration request] 1. A metal rotating lid provided on a prize ball cylinder to which a replenishing ball is replenished and a mechanism plate serving as a discharging portion for the replenishing ball in order to make the electric potentials of the replenishing ball and the outgoing ball the same. A grounding wiring structure for a pachinko machine, characterized in that it is electrically connected directly to a metal plate provided in the ball receiving portion, and is grounded to a mounting bracket for mounting the mechanism plate to the frame.