JPH10249003A - Pachinko ball shooting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pachinko ball shooting device with which spring force for returning a pachinko shooting hammer can be precisely adjusted, attachment work can be simplified by reducing the number of parts and cost down can be attained. SOLUTION: One end part of return spring 5 is linked to one part of arm 4a to be turned integrally with a pachinko shooting hammer 4 with a supporting shaft 4b as a center, the other end part of that return spring 5 is linked to one end part of wire 6, and the other end part of wire 6 is linked through a roller 7a and a roller 8 for relay to a handle part roller 9. The roller 7a for guiding the move of wire 6 is attached on a pedestal, which can be slid in the direction of arrow F or antiarrow F direction toward a base member 2, so as to be freely rotated. Thus, by moving the roller 7a in the arrow F direction, the spring power of return spring 5 can be increased and by inversely moving the roller in the anti-arrow F direction, the spring power of return spring 5 can be decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball firing device used for a pachinko machine.

[0002]

2. Description of the Related Art Conventionally, in this type of pachinko ball shooting device, as shown in Japanese Utility Model Laid-Open Publication No. 6-15686, for example, a cam rotated in one direction by a motor is used.
After rotating the pachinko ball firing hammer in one direction against the spring force of the return spring, the pachinko ball firing hammer disengaged from the cam is vigorously returned in the other direction by the return spring. The pachinko ball that hits the mallet of the pachinko ball launching hammer is fired. Then, when the player operates the operation handle, the spring force of the return spring changes in conjunction with the movement of the operation handle, thereby changing the firing strength of the pachinko ball by hammering. Separately, a spring force adjuster using a ratchet mechanism is provided to adjust the firing strength variation due to dimensional error or assembly error of each part, so that the spring force of the return spring can be adjusted stepwise. I have to.

[0003]

However, in the structure of the conventional spring force adjuster, since the ratchet mechanism is used, the spring force can be adjusted only in a stepwise manner. Can't do it. In addition, there are many mechanical parts constituting the spring force adjuster, and there is a problem that simplification of the assembling work and cost reduction cannot be achieved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and enables fine adjustment of a spring force and simplification of assembly work and cost reduction by reducing the number of parts. It is an object of the present invention to provide a pachinko ball launching device capable of performing the following.

[0005]

In order to achieve this object, a pachinko ball shooting device according to claim 1 is provided with a motor and a pachinko ball shooting hammer that rotates in one direction in conjunction with the motor. A cam that engages and rotationally drives the pachinko ball firing hammer in one direction, a return spring for returning the pachinko ball firing hammer disengaged from the cam in the other direction, and a return thereof. A stopper member for engaging and stopping the pachinko ball firing hammer returned by the spring,
A wire for changing the spring force of the return spring in conjunction with the movement of the operation handle, a spring force adjuster for adjusting the spring force of the return spring, and a base member for disposing each component In the pachinko ball firing device provided with, the spring force adjuster includes a roller portion for guiding the wire, and positions the roller portion in a direction in which the wire is stretched with respect to the base member or in a direction opposite thereto. It is characterized in that it is configured to be adjustable so that the spring force of the return spring can be adjusted.

According to the pachinko ball shooting device of the first aspect, the roller for guiding the wire is installed so as to be adjustable in the direction in which the wire is stretched with respect to the base member or in the opposite direction. By adjusting the position of the roller with respect to the base member, the spring force of the return spring can be easily adjusted. Accordingly, the spring force can be finely adjusted, and the structure is extremely simple, so that the number of parts can be reduced to simplify the assembling work and reduce the cost.

[0007] A pachinko ball firing device according to a second aspect is the pachinko ball firing device according to the first aspect.
The roller portion is mounted on a base slidably installed in a direction in which the wire is stretched with respect to the base member or in a direction opposite thereto, and the base is a screw portion extending in the sliding direction. By operating, the position with respect to the base member can be adjusted steplessly.

According to the pachinko ball shooting apparatus of the second aspect, the base on which the roller is mounted is slid in the direction in which the wire is stretched by the operation of the screw or in the direction opposite thereto, whereby the base is slid. The position of the roller unit with respect to the member can be adjusted steplessly and easily. Therefore, it is possible to finely adjust the spring force.

Further, the pachinko ball firing device according to claim 3 is the pachinko ball firing device according to claim 1 or 2, wherein the wire has one end connected to the operation handle and the other end connected to the operation handle. A portion is connected to one end of the return spring.

According to the third aspect of the present invention, since the pachinko ball firing device has a simple configuration, one end of the wire is connected to the operation handle, and the other end is connected to one end of the return spring. It is not necessary to interpose a special motion transmitting member between the operation handle and the return spring. Therefore,
The spring force of the return spring can be precisely changed in conjunction with the movement of the operation handle, and the number of parts can be reduced to make it inexpensive.

According to a fourth aspect of the present invention, in the pachinko ball firing apparatus according to the first or second aspect, the wire has one end connected to the operation handle and the other end connected to the operation handle. A portion is connected to one end of the return spring via a member rotatably installed on the base member.

According to the pachinko ball shooting device of the present invention, one end of the wire is connected to the operation handle, and the other end of the return spring is connected via a member rotatably mounted on the base member. Since it is configured to be connected to one end, for example, a return spring can be configured using a torsion coil spring or the like.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 6 are views showing the configuration of the pachinko ball firing device 16 according to the first embodiment.
A known stepping motor 1 covered with a is screwed (fixed) to a base member 2 and a motor drive circuit (control circuit) 1b is integrally attached to the back of the motor 1. As shown in FIG. 4, a drive gear 1d is attached to an output shaft 1c of the stepping motor 1. The driven cam gear 3, which is driven to rotate by meshing with the driving gear 1c, is rotatably attached to the base member 2, and is integrally formed with a crescent-shaped cam 3a. The pachinko ball shooting hammer 4 is attached to the base member 2 so as to be rotatable around a support shaft 4b, and is capable of engaging with the crescent-shaped cam 3a of the driven cam gear 3 and an arm 4a for hitting the pachinko ball 15. A hammer 4c is provided.

A return spring 5 composed of a tension coil spring is wound around the arm 4a. One end of the return spring 5 is connected (fixed) to a part of the arm 4a, and the other end has flexibility. The wire 6 is connected to one end of the wire 6.
The other end of the wire 6 is connected to a handle roller 9 via a roller (roller part) 7 a attached to the spring force adjuster 7 and further via a relay roller 8.

Here, the handle roller 9 is locked by a stopper pin 2a projecting from the base member 2,
In the state shown in FIG. 4, rotation in the direction of the arrow D is not allowed any more. Thereby, the return spring 5
Urges the pachinko ball firing hammer 4 in the direction of arrow B shown in FIGS. 1 and 2 so that the upper and lower arms of the pachinko ball firing hammer 4 always contact the two stopper members 10, 10. At the same time, the handle portion roller 9 is resiliently held at a position where the handle portion roller 9 is in contact with the stopper pin 2a via the wire 6.

The stopper members 10 and 10 are formed, for example, by covering hard rubber with leather. When the stopper members 10 and 10 collide with the pachinko ball shooting hammer 4 rotated in the direction of arrow B, the impact is alleviated. It has the function of holding the pachinko ball firing hammer 4 at a certain standby position. The stopper member 10 is screwed (fixed) to the base member 2 by the holder 11.

When the stepping motor 1 is driven, the driving cam gear 3 which rotates integrally with the output shaft 1c rotates in the direction of arrow A shown in FIGS. Accordingly, when the crescent-shaped cam 3a engages with the arm 4a, the pachinko ball shooting hammer 4 is rotated about the support shaft 4b in the direction of arrow C in FIG. Further, when the crescent-shaped cam 3a rotates in the direction of arrow A, and the cam 3a comes off the arm 4a, the pachinko ball firing hammer 4 causes the return spring 5 wound around the arm 4a to act as shown in FIG. , 2 and return to the original standby position. At this time, the pachinko ball firing hammer 4 abuts against the stopper members 10 and 10 and is prevented from rotating further, and at the same time, the pachinko ball firing hammer 4
The pachinko ball 15 hits the pachinko ball 15, and the pachinko ball 15 is fired along the rail 12 by the momentum of the rotation of the pachinko ball firing hammer 4.

The handle roller 9 is connected so as to rotate integrally with an operation handle (not shown) provided on the front surface of the pachinko board, and the handle roller 9 is moved together with the operation handle by the player as shown in FIGS. 4, the wire 6 having one end connected to the handle roller 9 is wound around the outer periphery of the handle roller 9 and the return spring 5 connected to the other end. Pull. Then, the spring force of the return spring 5 increases, and the rotation speed of the pachinko ball firing hammer 4 receiving the spring force increases.
The pop-out force of the pachinko balls 15 increases.

At the time of assembling the pachinko ball shooting device 16, the amount of projection of the pachinko ball 15 relative to the amount of rotation of the operating handle (handle roller 9) is reduced due to dimensional errors of the return spring 5 or other assembled parts. The spring force adjuster 7 for suppressing the variation as much as possible and adjusting the firing device to be substantially uniform is provided for the wire 6 connecting the return spring 5 and the handle roller 9 to each other. More specifically, it is provided along with a roller 7a for guiding the movement of the wire 6.

FIG. 5 is an exploded perspective view showing the spring force adjuster 7, in which a roller 7a as a guide for guiding the movement of the wire 6 passes through the through hole 2b of the base member 2 from the rear side. Projection part 7e of adjuster base 7b projected to the front side
It is rotatably mounted on a screw 7f. The adjuster base 7b has a screw 7h provided on one side thereof inserted into a hole 7g of an upright wall 7i protruding from one side of the adjuster fixing cover 7c. The fixed cover 7c is screwed (fixed) to the base member 2 with four mounting screws 13 so as to be slidable in the axial direction of the screw portion 7h. Further, a spring force adjusting knob 7d having a female screw portion screwed to the screw portion 7h of the adjuster base 7b is provided outside the upright wall 7i provided on one side of the adjuster fixing cover 7c. ing.

The operation of the spring force adjuster 7 will be described with reference to FIGS. 3 and 4. When the spring force adjusting knob 7d is rotated in the direction of the arrow E, the knob 7d is screwed through the screw portion 7h. The adjuster base 7b slides in the direction of arrow F. Accordingly, the roller 7a rotatably attached to the protrusion 7e of the adjuster base 7b also moves in the arrow F direction. At this time,
The handle roller 9 connected to one end of the wire 6 is
By contacting the stopper pin 2a of the base member 2, in the state shown in FIG. 4, the wire 6 cannot be further rotated in the direction of the arrow D, so that the wire 6 is moved along with the movement of the roller 7a in the direction of the arrow F. It is not pulled in the direction of the handle roller 9.

However, the other end of the wire 6 is connected to the arm 4 of the pachinko ball shooting hammer 4 via the return spring 5.
Since the pachinko ball firing hammer 4 is connected (fixed) to the pachinko ball firing hammer 4 and is in contact with the stopper members 10, 10, the arm 4a that rotates integrally with the pachinko ball firing hammer 4 is also shown in FIG. In the state shown, rotation in the direction of the arrow C cannot be performed any more. Accordingly, when the roller 7a moves in the direction of arrow F, the return spring 5 is accordingly moved by the arrow F through the wire 6.
Direction, and the spring force increases. Moreover, the spring force increases in accordance with the amount of movement of the roller 7a in the direction of arrow F.

Also, the spring force adjusting knob 7d is turned
When rotated in the direction, the return spring 5 is returned in the direction opposite to the arrow F, and the spring force is reduced.

As shown in FIGS. 1 and 2, the adjuster base 7b and the adjuster fixing cover 7c are provided with one side (here, the sliding position of the adjuster base 7b with respect to the base member 2). A scale 7j is provided on the adjuster fixing cover 7c), and an index 7k is provided on the other (here, the adjuster base 7b). For this reason, the operator who adjusts the spring force can accurately grasp the sliding position of the adjuster base 7b, and can easily perform the adjustment operation of the spring force using this as a guide.

In the above embodiment, one end of the wire 6 is connected to the handle roller 9 and the other end of the wire 6 is connected to one end of the return spring 5 composed of a tension coil spring via the relay roller 8 and the roller 7a. However, the present invention is not limited to this. For example, as shown in FIGS. 7 and 8 as a second embodiment, a rotation base 25 rotatably supported about a support shaft 4b.
Is attached between the rotation base 25 and the arm 4a.
A return spring 26 composed of a torsion coil spring may be provided. That is, while one end of the return spring 26 is connected (fixed) to the rotation base 25 and the other end is connected to the arm 4a, the other end of the wire 6 whose one end is connected to the handle roller 9 is connected to the rotation base. 25 and connected (fixed) around the outer periphery of 25.

The location where the return spring 6 is provided is not limited to between the roller 7a and the arm 4a. For example, between the handle roller 9 and the relay roller 8, or between the relay roller 8 and the roller 7a. The same effect as described above can be obtained by providing a wire between the return spring 6 and the handle roller 9 or between the return spring 6 and the arm 4a.

[0028]

As described above, according to the pachinko ball shooting apparatus of the first aspect, the position of the roller for guiding the wire is adjusted in the direction in which the wire is stretched with respect to the base member or in the direction opposite thereto. Because it is installed freely,
By adjusting the position of the roller with respect to the base member, the spring force of the return spring can be easily adjusted.
Accordingly, the spring force can be finely adjusted, and the structure is extremely simple, so that the number of parts can be reduced to simplify the assembling work and reduce the cost.

Further, according to the pachinko ball shooting device of the second aspect, the base on which the roller portion is mounted is slid in the direction in which the wire is stretched by the operation of the screw portion or in the opposite direction. The position of the roller portion with respect to the base member can be easily and quickly adjusted steplessly. Therefore, it is possible to finely adjust the spring force.

Further, according to the pachinko ball shooting device of the third aspect, the wire is connected to one end of the wire to the operation handle, and the other end is simply connected to one end of the return spring. Therefore, it is not necessary to interpose a special motion transmitting member between the operation handle and the return spring. Therefore, the spring force of the return spring can be accurately changed in conjunction with the movement of the operation handle, and the number of parts can be reduced and the device can be manufactured at low cost.

According to the pachinko ball firing device of the present invention, one end of the wire is connected to the operation handle, and the other end is returned via a member rotatably mounted on the base member. Since it is configured to be connected to one end of the spring, it is also possible to form a return spring using, for example, a torsion coil spring.

[Brief description of the drawings]

FIG. 1 is a perspective view of a pachinko ball firing device according to a first embodiment of the present invention, viewed from the back side.

FIG. 2 is a rear view of the pachinko ball firing device.

FIG. 3 is a perspective view of the pachinko ball firing device as viewed from the front side.

FIG. 4 is a front view of the pachinko ball firing device.

FIG. 5 is an exploded perspective view of the pachinko ball firing device in which a spring force adjuster is exploded.

FIG. 6 is a side view of the pachinko ball firing device.

FIG. 7 is a side view of a pachinko ball firing device according to a second embodiment.

8 is a front view of the pachinko ball firing device shown in FIG.

[Explanation of symbols]

 Reference Signs List 1 stepping motor 1a case 1b motor drive circuit 1c output shaft 1d drive gear 2 base member 2a stopper pin 2b through hole 3 driven cam gear 3a crescent cam 4 pachinko ball firing hammer 4a arm 4b support shaft 4c hammer 5 return spring 6 wire 7 Spring force adjuster 7a Roller (roller part) 7b Adjuster base 7c Adjuster fixing cover 7d Spring force adjusting knob 7e Projection 7f Screw 7g Hole 7h Screw 7i Standing wall 7j Scale 7k Index 8 Relay roller 9 Handle roller 10 Stopper member 11 Holder 12 Rail 13 Mounting screw 15 Pachinko ball 16 Pachinko ball firing device 25 Rotation base 26 Return spring

Claims (4)

[Claims] 1. A motor, comprising: a motor that rotates in one direction in conjunction with the motor to engage with a pachinko ball firing hammer to rotate the pachinko ball firing hammer in one direction; A return spring for returning the disengaged pachinko ball firing hammer in the other direction, a stopper member for engaging and stopping the pachinko ball firing hammer returned by the return spring, and an operation handle A wire for changing the spring force of the return spring in conjunction with the movement of the return spring, a spring force adjuster for adjusting the spring force of the return spring, and a base member for disposing the components. In the pachinko ball firing device, the spring force adjuster includes a roller portion that guides the wire, and the roller portion is directed in a direction in which the wire is stretched with respect to the base member or in a direction opposite thereto. Position adjustably by installing the back pachinko ball launching apparatus characterized by being configured to be able to adjust the spring force of the spring. 2. The roller unit is mounted on a base slidably mounted in a direction in which the wire is stretched with respect to the base member or in a direction opposite to the direction in which the wire is stretched. The pachinko ball shooting device according to claim 1, wherein a position with respect to the base member can be adjusted steplessly by operating a screw portion extending in the direction. 3. The wire according to claim 1, wherein one end of the wire is connected to the operation handle, and the other end is connected to one end of the return spring. Pachinko ball launcher. 4. The wire has one end connected to the operation handle, and the other end connected to one end of the return spring via a member rotatably installed on the base member. The pachinko ball shooting device according to claim 1 or 2, wherein