JPS584533Y2 - Pachinko machine ball guide rail - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a ball guiding rail that extends along the playing surface of a pachinko machine from the inlet end of a backflow ball receiving gutter provided at the bottom of the gaming board.

Conventional rails of this type have a flat cross section.

For this reason, while the pachinko ball fired from the firing section moves along the rail, it may touch left and right and come into contact with the playing surface of the game board or the glass surface on the opposite side, resulting in irregular ball speed. This was causing the problem to occur.

In particular, in the ball guide rail that extends along the playing surface from the entrance end of the backflow ball receiving trough, the ball moves almost vertically along the rail, so the ball speed is greatly affected by contact resistance. Even in pachinko machines, this has caused difficulty in adjusting the ball falling position.

In particular, when a pachinko ball that has been driven into the surface of a game board first comes into contact with a nail that has been driven into the surface of the game board, care must be taken to ensure that it does not bounce off, especially since this first nail is targeted by the player. In addition, it is desired that the rail should come into contact with the intermediate part without contacting the base or the head, but conventional rails have not been able to fully satisfy this requirement.

The purpose of this invention is to eliminate the above drawbacks.
By forming an arcuate groove with a radius larger than the radius of a pachinko ball on the ball rolling surface of the ball-hitting guide rail body that extends from the inlet end of the backflow receiving gutter along the playing surface of the game board, the balls can be drawn into the rail itself or the ball rolling surface. It is characterized by preventing two-point contact between the rail and the game board, glass surface, etc., and equalizing the ball speed by one-point contact.

The present invention will be described in detail below with reference to the illustrated embodiments.

In FIG. 1, 1 is a pachinko machine main body, a game board 2 is removably attached to the main body 1, a ball firing band 3 is disposed below the game board 2, and a ball firing band 3 is provided at the upper end of the band 3. is connected to an inlet portion 5A of a backflow method receiving gutter 5 for returning the backflow method to the receiving tray 4 and the like.

At the left end of the entrance portion 5A in the figure, there is a gaming surface 2A of the gaming board 2.
A ball guiding rail main body 6 is disposed that extends in a substantially arc shape along the ball.

On the game surface 2A of the game board 2, an inner rail 7 for guiding a falling ball, a prize winning tool 8, an exit opening 9, an obstacle nail 10, etc. are arranged.

The rail body 6 is attached to the game board 2, and the lower end portion of the rail body 6 is connected to the inlet portion 5A of the backflow method receiving gutter 5 when the game board 2 is attached to the pachinko machine body 1.

As shown in FIG. 2, the rail main body 6 is made of a metal band member here, and has a nail 11 that engages with its base 6A.
It is fixed to the game board 2 by.

The ball rolling surface of the rail body 6 is formed with an arcuate groove 6B in cross section in the longitudinal direction.

The arc radius of this arc groove portion 6B is set larger than the radius of the pachinko ball.

Due to the above configuration, the pachinko ball contacts the rail main body 6 itself at one point and approaches the center of the arcuate groove 6B due to the centrifugal action when the ball moves, resulting in the rail main body 6, the game board 2, and the front glass. Two-point contact with 12th mag is also impossible.

Therefore, each pachinko ball is guided by the rail main body 6 in a one-point contact state and is supplied to the upper part of the game board 2 at a uniform speed.

Although one embodiment has been described above, the present invention is not limited to the above, and includes, for example, the following modifications.

■ As shown in Fig. 3, if the radius of the arcuate groove 6B is larger than the radius of the pachinko ball, the shape of the arcuate groove 6B is
It may be set so that the entire shape is arcuate from the tip toward the tip 6B.

(2) As shown in FIG. 4, the rail body 6 itself may be made of plastic.

In this case, the rail body 6 extends from its tip 6C to the game board 2.
You can also nail it towards the.

(2) The arcuate groove portion 6B may be formed over the entire length of the rail body 6, but the upper limit may be set to the position where the pachinko ball leaves the rail body 6, that is, at least to the upper end of the inner rail.

■ The rail body may have an inner and outer rail integrally.

■ The game board may be fixed to the pachinko machine body.

Since the present invention has the above-mentioned configuration, since the cross section is arcuate, the ball moves toward the center of the rail body due to centrifugal action, and contacts the rail body and the playing surface or the rail body and the glass surface at two points respectively. This will no longer happen.

This prevents variations in ball speed due to two-point contact as the pachinko ball swings from side to side, and when the pachinko ball hits the nail for the first time, it hits the middle of the nail. Accurate repelling can be achieved with iron nails.

Furthermore, since the ball does not make two-point contact with the rail body itself, the influence of changes in contact resistance due to oil, dirt, etc. adhering to the contact portion can be halved.

Moreover, the effect of contact resistance on ball speed is greatest on the ball rolling surface where the ball rises almost vertically from the inlet of the backflow receiving gutter to the top of the game board. Since an arcuate groove with a radius larger than the radius of the pachinko ball is formed in the part, the influence of contact resistance on ball speed can be minimized, and balls can be smoothly fed to the top of the game board. .

Therefore, it is possible to provide a pachinko machine with good ball supply stability.

[Brief explanation of the drawing]

Fig. 1 is a partial front sectional view of a pachinko machine showing one embodiment of the present invention, Fig. 2 is a sectional view taken along the line II-II in Fig. 1, and Figs. FIG. 2 is a cross-sectional view taken along line II-II showing the embodiment. 2...Game board, 2A...Game surface, 6.
...Battered ball guide rail body, 6B...Circular groove part.

Claims (1)

[Scope of utility model registration request] On the ball rolling surface of the ball guiding rail body extending from the artificial end of the backflow ball receiving gutter provided at the bottom of the game board along the playing surface of the game board, at least the inlet end of the ball rolling surface along the ball guiding rail body. A ball-hitting guide rail for a pachinko machine, characterized in that an arcuate groove is formed across the upper end of the rail, and the radius of the arcuate groove is larger than the radius of a pachinko ball.