JPS5848193B2 - Power storage device for launching pachinko balls - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power storage device for ejecting pachinko balls for applying a striking force for ejecting pachinko balls to a batting mallet for ejecting pachinko balls.

Conventionally, to apply impact force to a batting mallet in a pachinko machine, one end of a long tension coil spring was attached to the batting mallet, and the other end was attached to the back of the game board via a trigger, etc. Because of this, it required a long space in the horizontal direction of the game board, and it was difficult to arbitrarily readjust the striking force.

An object of the present invention is to provide a power storage device for firing pachinko balls that eliminates the above-mentioned drawbacks.

To explain the illustrated embodiment below, in FIGS. 1 to 3, a fixing member 1 attached to the back side of a pachinko machine
A support shaft 2 is rotatably attached to the support shaft 2, and a base portion of a ball hammer 30 is fixed to the support shaft 2.

The tip of the ball hammer 3 faces the firing section 4A at the lower end of the firing rail 4.

A cylindrical case 5 with a bottom is fixed near the batting mallet 3, a support shaft 6 is implanted in the center of the inner bottom surface of the case 5, and a coil spring 7 is disposed coaxially with the support shaft 6. An arm member 8 coaxial with the support shaft 6 is rotatably supported at the base of the support shaft 60 via a bearing 15, so that the arm member 8 is coaxial and fixed with respect to the coil spring 1. It is positioned so as to be rotatable relative to the member 1.

The arm member 8 has a notch 5A formed in the side wall of the case 5.
It has an arm portion 8A extending radially outward beyond the arm portion 8A, and is implanted at an intermediate portion between the pin 9 implanted in the arm portion 8A and the ball hammer 3 (preferably at a position near the support shaft 2). Both ends of the connecting rod 11 are pivotally connected to the pin 10.

A pin 12 is provided protruding from the ball hammer 3, and a cam 14 connected to a motor 13 drives the ball hammer 3 by striking this pin 12.

The motor 13 is fixed to the fixed member 1. A spring force adjustment plate 16 is fitted to the tip end side of the support shaft 6 so as to be rotatable and slidable in the axial direction, and the coil spring 7 is seated on the spring receiving portion 16A of the spring force adjustment plate 16. .

In this way, the coil spring 7 inserted between the arm part 8 and the spring receiving part 16 has each end connected to the arm member 8, for example.
Both 8 and 16A are inserted into the spring receiver 16A.
and are coupled so as to be non-rotatable relative to each other.

The boss portion 16B of the spring force adjusting plate 16 is connected to the coil spring γ.
is located on the opposite side of the boss portion 16B, and on the outer periphery of the boss portion 16B,
A reference member 17 is fitted so as to be relatively rotatable and slidable in the axial direction.

On opposing surfaces of the reference member 17 and the spring force adjustment plate 16 in the axial direction of the support shaft 6, a large number of pairs of ratchet teeth 16C, 17A that engage with each other are formed in the circumferential direction of the support shaft 6.

A handle portion 16D that can be gripped and operated from the outside is formed at the end of the spring force adjustment plate 16, and between the handle portion 16D and the reference member 17, there are ratchet teeth 16C and 17A. A spring 18 is inserted which biases the tooth in the biting direction.

A claw piece 19 is pivotally attached to the reference member 17 via a shaft 20, one end of a wire 21 is connected to the claw piece 19, and the other end of the wire 21 is connected to a pulley portion 23 of a grip 22.

A guide pulley 24 is provided between the claw piece 19 and the pulley portion 23.
, 2 5 are provided, and the fixed member 1 is provided with a guide pulley 2
A guide portion 26 is formed to prevent the wire 21 from separating from the wires 4 and 25.

A spring 21 is attached between the claw piece 19 and the fixing member 1 to assist the pulling force of the arm portion 17 by the grip 22.

As shown in FIG. 4A, the tip 19A of the claw 19 is formed to be able to engage with the case 5, and when adjusting the spring force of the coil spring 7, the tip 19A of the claw 19 is attached to the case 5.
to lock the spring force adjustment plate 16 to its handle portion 16D.
Turn it as shown in the opening in Figure 4.

Note that the position of the attachment part 21A of the wire 21 to the claw piece 19 is set at such a position that the claw piece 19 is biased counterclockwise as shown in FIG. 4C when the wire is indexed. Inconveniences such as the tip portion 19A getting caught on the case 5 do not occur.

In the electric ball launcher having the above configuration, when the grip 22 is rotated in the direction of the arrow in FIG. 3, the reference member 1T is rotated in the direction of the arrow via the wire 21, and the coil spring 7 is twisted in the winding direction.

Further, the rotation of the grip 22 turns on a motor switch (not shown), which activates the motor 13 and rotates the cam 14, which engages the pin 12 and moves the batting mallet 3 a certain amount in the direction of the arrow. Rotate.

As a result, repulsive energy is stored in the coil spring 7, and this repulsive energy is adjusted according to the relative rotation amount between the spring force adjustment plate 16 and the arm member 8.

When the cam 14 comes off the pin 12, the ball hammer 3 returns to its original position due to the repulsive force of the coil spring 7, and strikes the ball on the firing section 4A.

In this case, even when the coil spring is twisted, the areas near the winding core do not rub against each other like in a clockwork spring, so there is no variation in impact force due to friction, and a large instantaneous force can be obtained. It turns out.

In addition, using the handle 16D, the ratchet teeth 16B,
By changing the engagement position of 17A, it is possible to change the magnitude of the operating force, that is, the impact force relative to the amount of grip operation.

In the above embodiment, an example has been described in which the striking force is adjusted according to the amount of rotation of the grip 22. However, the grip 22 is simply connected to the motor 13.
In the case of an electric type or a manual type that only turns ON and OFF, the reference member 17 may be integrated with the case 5 (eventually, the case 5 becomes the fixed member 1).

As is clear from the above description, the present invention utilizes the torsion force of the coil spring as the impact force for launching pachinko balls, so the overall size is reduced.

Further, by simply operating the handle portion 16 of the spring force adjusting plate 16, it is possible to easily set the striking force to a desired magnitude.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view showing an embodiment of the present invention. FIG. 2 is a sectional view taken along line A-A in FIG. 1. Figure 3 is the first
FIG. 2 is an exploded perspective view of the entire device shown in the figure. FIGS. 4A, 4B, and 4C are perspective views of essential parts of the apparatus shown in FIG. 1, respectively. 3... Ball hammer, 5... Case, 6...
...Support shaft, 7...Coil spring, 8...
...Arm member, 16...Spring force adjustment plate, 1
6B...Boss part, 16C...Ratchet tooth, 16D...Nodle part 17...
・Reference member, 17A...Ratchet tooth.

Claims (1)

[Scope of Claims] 1. A casing, a support shaft protruding from the inner surface of the casing, an arm member rotatably held by the support shaft and to be linked to a batting mallet, and an arm member rotatable by the support shaft. and a spring force adjustment plate that is slidably held in the axial direction and has a handle portion that can be operated from the outside, and is inserted between the arm member and the spring force adjustment plate, and has one end attached to the arm member. On the other hand, a coil spring whose other end is connected to the spring force adjustment plate in a manner that the coil spring cannot rotate relative to the spring force adjustment plate, and which can be rotated and relatively displaced in the axial direction with respect to the boss portion of the spring force adjustment plate. A power storage device for launching pachinko balls, comprising: a fitted reference member; and a pair of ratchet teeth that are formed on opposing surfaces of the spring force adjustment plate and the reference member and mesh with each other.