JPH09131430A - Ball bouncing apparatus for pachinko machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable curtailing of a space by consolidating a device mounted on a substrate of a ball bounding apparatus. SOLUTION: A coil spring type spring 7 for bouncing balls is provided on the outer circumference of a rotating shaft 4 of a ball bouncing hammer 3. A slide shaft 11 having a second ratchet plate 12 for adjusting a spring force of the spring 7 for bouncing balls is assembled on the same shaft of the rotating shaft 4. While the second ratchet plate 12 is meshed with a first ratchet plate 10 on the side of the rotating shaft 4, the spring force can be adjusted by changing a meshing position. The spring force adjusting mechanism thus arranged is provided on the same shaft of the rotating shaft 4 of the ball bouncing hammer 3 thereby allowing the curtailing of the space on the substrate 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ball-and-ball apparatus for a pachinko machine using a winding spring as a ball-and-ball spring.

[0002]

2. Description of the Related Art An electric pachinko machine incorporates a spring force adjusting mechanism operable at a pachinko parlor in addition to a ball force adjusting mechanism operated by a player using a handle. In the case of a pachinko machine in which the winding spring is a ball spring, the ball force adjusting mechanism connects the drum on which the ball spring is mounted to the handle side with a wire or the like, and when the handle is rotated, this drum rotates. It has a structure that changes the strength of the spring for bullets. The spring force adjustment mechanism is provided between the handle and the drum, and can change the rotation angle of the drum with respect to the rotation angle of the handle by using a ratchet mechanism.

However, conventionally, the spring force adjusting mechanism on the pachinko parlor side including the ratchet mechanism is provided separately at a position away from the rotation axis of the ball hammer. In addition to the rotary shaft and the ball-and-ball motor, many devices such as a spring force adjusting mechanism and a handle must be incorporated, and there is a problem that a large space is required. Further, conventionally, these devices are connected via gears and wires, so that there is a problem that the number of parts is large and the product cost is high.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and provides a pachinko machine capable of reducing space and reducing product cost by integrating equipment mounted on a board of a ball-and-ball apparatus. This was made to provide a ball-and-ball device.

[0005]

SUMMARY OF THE INVENTION The present invention, which has been made to solve the above-mentioned problems, provides a winding spring type spring for a ball on the outer circumference of a rotary shaft of a mallet and coaxially with the rotary shaft. It is characterized in that a slide shaft equipped with a ratchet plate for adjusting the spring force of a ball spring is incorporated in the.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a ball-and-ball device of a pachinko machine according to the present invention as viewed from a board side, FIG. 2 is a perspective view as viewed from a back side, and FIG. 3 is a rear view. FIG. 4 is a plan view showing a main part cut away, and FIG. 5 is an enlarged sectional view of the main part.

1 to 3, reference numeral 1 is a substrate of a ball ball device directly attached to a base of a pachinko machine, 3 is a ball hammer,
Reference numeral 4 denotes a rotating shaft on which a ball hammer is integrally fixed, 5 denotes a ball motor, and 6 denotes a ball cam. The ball device of the present invention also rotates the ball hammer 3 to the position shown by the imaginary line in FIG.
Further, when the ball cam 6 rotates and comes off from the end of the ball hammer 3, the ball motion is performed by the spring force of the ball spring 7, which will be described later, as in the conventional one.

As shown in FIGS. 4 and 5, the rotary shaft 4 of the ball hammer 3 is rotatably supported by bearings 9 in a short cylindrical portion 8 projecting from the surface of the substrate 1. . A first ratchet plate 10 having ratchet pawls is fixed to one end of the rotary shaft 4. Therefore, the bullet mallet 3, the rotary shaft 4, and the first ratchet plate 10 always rotate integrally.

A slide shaft 11 is provided coaxially with the rotary shaft 4 so as to be slidable in the axial direction of the rotary shaft 4.
The first ratchet plate described above is provided at one end of the slide shaft 11.
A second ratchet plate 12 that meshes with 10 is integrally provided. Then, a knob 13 provided on the other end of the slide shaft 11
The compression spring 14 between the rotary shaft 4 and the rotary shaft 4 always pulls the slide shaft 11 to bring the second ratchet plate 12 into close contact with the first ratchet plate 10. However, by pushing the knob 13 against the compression spring 14, the second ratchet plate 12 can be relatively rotated away from the first ratchet plate 10.

A wire winding drum 15 is rotatably provided on the outer circumference of the short tube portion 8 described above. A wire 16 for adjusting the ball force is wound around the outer periphery of the wire winding drum 15, and the other end of the wire 16 is wound around a drum 18 of a handle 17. Also, the wire winding drum 15
The base end of a wound spring type ball spring 7 provided on the outer periphery of the short cylindrical portion 8 is fixed inside the base. The tip of the ball spring 7 is fixed to the second ratchet plate 12 described above. ing. For this reason, when the player operates the handle 17, the wire 16 is pulled, the wire winding drum 15 rotates, and the position of the base end of the ball spring 7 changes, so that the strength of the ball spring 7 is reduced. The ball force is adjusted to change.

Since the first ratchet plate 10 and the second ratchet plate 12 are always in mesh with each other in the ball-ball device of the pachinko machine of the present invention thus constructed, the base end of the ball-spring 7 is operated by operating the handle. When the spring force is changed by changing the position of, the spring force is transmitted from the second ratchet plate 12 through the first ratchet plate 10 to the rotary shaft 4 as it is, and the elastic force is adjusted.

When the pachinko parlor side wants to adjust the spring force, the knob 13 is pushed against the compression spring 14 to rotate the second ratchet plate 12 away from the first ratchet plate 10 and relatively rotate. As a result, the second ratchet plate
Since the relative angle between 12 and the first ratchet plate 10 changes, the spring force can be adjusted.

[0013]

As described above, in the ball-ball device of the pachinko machine of the present invention, the spring force can be adjusted in the same manner as in the conventional product, and the spring-force adjusting mechanism, which is separately provided in the prior art, can be used for the ball-ball adjustment. Since it is provided coaxially with the rotation axis of the mallet, there is an advantage that the mounting space on the substrate can be reduced. Further, according to the present invention, the springs for the spheres directly connected to the wire winding drum via gears and wires do not need to be rotated as in the prior art, so that there are no parts attached to them and the product cost is reduced. There is an advantage that it can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a ball-and-ball device of a pachinko machine according to the present invention as viewed from a board side.

FIG. 2 is a perspective view of the ball-ball device of the pachinko machine of the present invention seen from the back side.

FIG. 3 is a rear view of the ball and ball device of the pachinko machine according to the present invention.

FIG. 4 is a plan view in which main parts are cut away.

FIG. 5 is an enlarged sectional view of a main part.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 board 3 bullet hammer 4 rotating shaft 5 bullet ball motor 6 bullet ball cam 7 bullet ball spring 8 short cylinder 9 bearing 10 first ratchet plate 11 slide shaft 12 second ratchet plate 13 knob 14 compression spring 15 wire Winding drum 16 Wire for adjusting the ball force 17 Handle 18 Drum

Claims (1)

[Claims] 1. A slide provided with a coil spring type spring for a ball on the outer periphery of a rotary shaft of a ball hammer, and a ratchet plate for adjusting the spring force of the ball spring coaxially with the rotary shaft. A ball device for a pachinko machine characterized by incorporating a shaft.