JPH045186Y2 - - Google Patents

Description

[Detailed description of the invention] Technical field This invention relates to a ball launcher for a pachinko machine.

Prior Art As shown in FIG. 1, a conventional ball firing device for a pachinko machine is equipped with a metal firing rail 1, and has a mallet opening 2 and a V-groove formed on the rear wall of the base end of the firing rail 1. The ball 4 is supported at four points a to d of No. 3, and the ball 4 is launched by the ball hitting motion of the mallet 5. In addition, in order to prevent the balls 4 supplied from a ball supply section (not shown) provided in front of the firing rail 1 from jumping over the firing rail 1 and going to the mallet 5 side, the base end of the firing rail 1 is A mallet cover 6 was provided.

However, since the launch rail 1 is manufactured by press molding from a metal plate, burrs and distortions occur simultaneously during punching and bending of the hammer opening 2, and as a result, it takes time for the balls 4 supplied to the relevant part to come to rest. This caused the ball 4 to be hit by the mallet 5 before it came to rest, resulting in poor firing. Further, as shown in FIG. 1, if there is even a slight distortion in the base end of the launch rail 1, there is a drawback that the support of the ball 4 becomes unstable.

Therefore, in view of the above problems, a launch rail with an improved four-point support is disclosed in Japanese Utility Model Application Publication No. 53-45345, but since it is made by bending the end of a metal plate, it is still similar to the previous model's hammer opening 2. Problems such as burrs and distortions that occur in the process could not be resolved.

Furthermore, the collision position of the mallet tip against the ball 4 when the mallet 5 hits the ball cannot be adjusted once the device is assembled, and it is difficult to optimize the collision position of the mallet tip against the ball 4. It was also impossible to adjust the batting force.

Purpose This invention was made to eliminate the above-mentioned drawbacks of the conventional technology.The purpose of this invention is to quickly bring the supplied ball to a standstill, prevent defective shots, and further improve the resting position of the ball. The object of the present invention is to provide an adjustable ball launcher for a pachinko machine.

Embodiment An embodiment embodying this invention will be described below with reference to the drawings. A launch rail 11 made from a metal plate by press molding is fixed to a predetermined position on the base of a pachinko machine so as to face forward. . The distal end of the firing rail 11 is bent downward to form a guide wall 12 for guiding the Far ball, and the base end is bent upward at a substantially right angle to form a proximal end wall 13. A ball guide groove 15 having a V-shaped cross section that gradually becomes shallower from the base end to the tip end is formed in the rail portion 14 of the launch rail 11, and the tip end of the rail portion 14 is flat. As shown in FIG. 3, the proximal wall 13 has a notch 13a formed on one side of its upper part, and a mounting piece 16 having an elongated hole 16a formed on the other side. A hammer opening 17 is formed by punching in the lower center of the base end wall 13. Further, a mounting piece 18 having a mounting hole 18a is formed on the lower surface of one side of the rail portion 14 and on the side of the guide wall 12.

The mallet cover 19 attached to the base end of the launch rail 11 is integrally formed of synthetic resin, and covers the front upper part of the former base end wall 13 as well as the diagonal upper part from the mounting plate 20 attached to the machine base (not shown). A cover wall 21 extending rearward is formed to protrude at right angles. A side wall 22 extending rearward in parallel with the mounting plate 20 is formed on the cover wall 21, and a boss 23 having a stopper hole 23a is provided on the inner surface of the side wall 22.

A stopper 24 having a semicircular cross section is provided on the front surface of the lower end of the cover wall 21, and support plates 31 are integrally formed from both left and right ends of the stopper 24 toward the rear. An elongated hole 32 extending in the front-rear direction is provided in approximately the center of the support plate 31, and the elongated hole 32
An adjustment screw 33 is inserted through 2, and the stopper 24 is supported by the adjustment screw 33 so that it can be slid back and forth. The support plate 31, the elongated hole 32, and the adjustment screw 33 constitute an adjustment means. Therefore, the stopper 24 is integrally constructed with the mallet cover 19 by being supported by the mallet cover 19 by the adjustment screw 33. The ball 25 supplied to the firing rail 11 is statically supported by the ball guide groove 15 and the stopper 24 without contacting the mallet port 17.

A rotatably supported ball hitting rod 26 is provided below the firing rail 11, and the hammer tip 27 of the mallet 27 is provided below the firing rail 11.
a is located near the former hammer opening 17. The ball hitting rod 26 is always urged in the ball hitting direction (X arrow direction) by a spring 28.

Next, the operation of the ball launcher constructed as above will be explained.

In this ball launcher, the ball 25 supplied to the launch rail 11 descends along the ball guide groove 15 and reaches three contact points between a stopper 24 provided in front of the base wall 13 and both slopes of the ball guide groove 15. It is gaining support. Therefore, the distorted portion of the base end of the ball guide groove 15 and the hammer opening 1 that occur when the ball guide groove 15 is manufactured by press molding are
Since the burr on the periphery of the ball 25 does not come into contact with the ball 25, the supplied ball 25 is quickly stationary and supported at the firing standby position, and defective firing is prevented. Also, the 11th
As shown in the figure, by loosening the adjusting screw 33 and slidingly adjusting the stopper 24 in the front-back direction, it is easy to set the collision position of the hammer tip 27a against the ball 25 at the optimum position when hitting the ball, and the ball hitting force can also be adjusted. It becomes easier.

Furthermore, the stopper 24 can be easily replaced together with the mallet cover 19, and in this embodiment, only the stopper 24 can be replaced.

Note that this invention is not limited to the above-mentioned embodiment, and instead of adjusting the stopper 24 by sliding it relative to the mallet cover 19 as an adjustment means, for example, as shown in FIGS. 12 and 13, A support plate 34 extending from the stopper 24 is rotatably provided with respect to the mallet cover 19 using a screw 29, and a presser screw 30 that abuts the stopper 24 is provided so as to be adjustable, so that the firing standby position of the ball 25 can be adjusted. It is. In addition, the firing rail 11 and the stopper 24 are not provided with the hammer opening 17.
It is also possible to arbitrarily change the shape, structure, etc. of each part without departing from the spirit of this invention, such as by combining it with the following.

Effects As described in detail above, this invention includes a launch rail 11 in which ball guide grooves 15 that come into contact with two points of the ball 25 are formed along the launch direction of the ball 25, and
A mallet cover 19 made of synthetic resin is detachably attached to the base end of the ball, and a stopper 24 is integrally formed with the mallet cover 19 and comes into contact with one point on the top of the ball 25 on the ball guide groove 15. , the stopper 2
Adjustment means 31 to 33 for adjusting the distance from the base end of the launch rail 11, and adjusting means 31 to 33 for adjusting the distance from the base end of the launch rail 11. 2
9, 30, and 34, the stopper 24 is made of synthetic resin and the mallet cover 19 is made of synthetic resin.
Because it is an integrated structure, even if it repeatedly collides with or comes into contact with pachinko balls, it is not a metal body, so it can absorb shock without becoming fatigued or damaged.

To prevent variations in the elastic force applied to a pachinko ball due to the occurrence of rust or the like that makes the standby or holding state of the pachinko ball unstable.

The mallet cover 19 and stopper 24 are made of synthetic resin and can be optimally molded and handled, making it possible to smoothly perform attachment and assembly work to the main body of the firing rail 11.

The stopper 24 releases the ball 1 from the firing rail 11 at an intermediate position in front of the base end of the firing rail 11.
Since it is provided at a height within the height of the hammer, it can be quickly supported stationary at the firing standby position without coming into contact with the burrs around the periphery of the mallet mouth 17, and defective firing can be prevented.

Stopper 24 that contacts one point above the ball 25
This makes it less likely to wobble compared to a four-point support.

The stopper 24 stops the ball 25 at a position forward of the base end of the firing rail 11.
There is no need to form a hammer opening 17 at the base end of the firing rail, and the firing rail can be manufactured easily.

Since the mallet cover 19 is manufactured separately, there is no need to press-form the mallet cover 19 on the firing rail 11, and since it is made of resin, it can be produced in large quantities at a lower cost than press processing. Further, since the mallet cover 19 is manufactured separately, there is no need to replace the entire firing rail 11 even if a problem occurs with it. Further, the production of the firing rail is facilitated, and since the mallet cover 19 is detachable, its replacement is easy.

Since the distance between the stopper 24 and the base end of the firing rail 11 can be adjusted, the resting position of the ball 25 can be adjusted, so that the collision position of the hammer tip 27a with the ball 25 when hitting the ball can be set to the optimal position. This provides various excellent effects, such as making it easier to adjust the ball hitting force.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a main part showing a conventional example, Fig. 2 is a perspective view showing an embodiment embodying this invention, and Fig. 3 is a perspective view showing an embodiment of this invention.
The figure is an enlarged perspective view of the base end of the firing rail, Figure 4 is a front view of the mallet cover, Figure 5 is a rear view, Figure 6 is a top view, Figure 7 is a bottom view, and Figure 8 is a bottom view. Similarly, FIG. 9 is a right side view, FIG. 10 is a partially cutaway front view showing the operation, FIG. 11 is a front view, and FIGS. 12 and 13 are front views showing modified examples. be. Launch rail...11, Base end wall...13, Ball guide groove...15, Hammer mouth...17, Hammer cover...19,
Stopper...24, Ball...25, Hammer...27,
Hammer tip...27a, screw as adjustment means...2
9, Holding screw...30, Support plate...31, Long hole...
...32, Adjustment screw...33, Support plate...34.

Claims (1)

[Claims for Utility Model Registration] The ball guide groove 15 that contacts two points of the ball 25 is
a firing rail 11 formed along the firing direction; a synthetic resin mallet cover 19 detachably attached to the base end of the firing rail 11; and a ball guide groove integrally formed with the mallet cover 19. 1
5, the stopper 24 is provided at a position halfway forward of the base end of the firing rail 11 and within a height of one ball from the firing rail 11. A ball firing device for a pachinko machine, characterized in that adjustment means 31 to 33, 29, 30, and 34 are provided for adjusting the distance from the base end of a firing rail 11.