JPH11179000A - Mounting structure of ball shooting control circuit board in pachinko game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a mounting structure of ball shooting control circuit board provided in a motor for shooting balls of a pachinko game machine to be readily attached and removed for repairing, exchanging, etc., to reduce the production cost by using a space in the backside of the motor for shooting balls effectively, simplifying the wiring and facilitating the assembling. SOLUTION: A cylindrical guide 19 is integrally formed with a plastic board case 16; an engaging hole 20 is formed on the inner bottom of the cylindrical guide 19; a ball shooting control circuit board 25 including a touch switch circuit and a phase control circuit is housed in the board case 16; and an engaging element 15 is formed in the backside of the casing 14 of a cylindrical ball shooting motor 2. The cylindrical guide 19 is fitted on the casing 14 from the backside, and the board case 16 is rotated, whereby the engaging element 15 is engaged with an engaging hole, and the substrate case 16 is removably mounted on the back of the ball shooting motor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a hit ball firing control circuit board attached to a hit ball firing motor of a pachinko game machine.

[0002]

2. Description of the Related Art In general, a pachinko game machine is configured such that a player hits a steering wheel to operate a motor for firing a ball, so that 100 game balls are fired per minute in a game area of a game board. I have. Therefore, a phase control circuit for controlling the number of revolutions of the hitting ball launching motor (stepping motor) and an electronic circuit board such as a touch switch circuit are provided at the lower portion of the back of the front frame of the pachinko game machine, or at the launching device mounting base plate or the like. Are screwed at appropriate positions.
Alternatively, in some cases, the touch switch circuit is provided in a handle protruding from the front of the pachinko gaming machine.

[0003]

However, especially in the vicinity of the ball launching device on the back of the pachinko game machine, there is not enough space, and with the above configuration, the wiring connecting the circuit boards is complicated. Assembly becomes complicated,
In addition to the disadvantage of increasing the manufacturing cost, the board case is fixed with screws, so if you want to attach or remove the board case for repair, replacement, etc., you need tools such as a screwdriver, which makes the work cumbersome. It was something.

Further, Japanese Patent Application Laid-Open Nos. Hei 7-250947 and Hei 4
In the ball launching device of a pachinko game machine disclosed in Japanese Patent Publication No. 272781, JP-A-5-27725, etc., a phase control circuit board and a touch switch circuit board are separately provided, and wiring is provided between the board cases. It is complicated and complicated, so many connectors are required and assembly is difficult.In addition, there is no space for mounting each board case, and the board case is fixed with screws, so repair, replacement, etc. However, there were drawbacks, such as difficulty in carrying out.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hitting and launching control circuit board mounting structure in which a cylindrical guide is formed integrally with a plastic board case. An engagement hole is formed in the inner bottom of the guide, and a hit ball launch control circuit board including a touch switch circuit and a phase control circuit is housed in the substrate case, and a cylindrical hit ball launch is fixed to the lower back surface of the pachinko game machine. An engagement piece is formed on the back surface of the casing of the motor, and the cylindrical guide is fitted onto the casing from the back surface to rotate the board case, whereby the engagement piece is engaged with the engagement hole, and The case is characterized in that the case is detachably attached to the back of the hit ball firing motor.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a hit ball launching device attached to the lower portion of the back of the front frame of the pachinko gaming machine, FIG. 2 is a plan view thereof, FIG. 3 is a longitudinal sectional view showing the mounting structure of the hit launch control circuit board, FIG. Is an exploded perspective view thereof. In the drawing, reference numeral 1 denotes a mounting board of the hit ball launching device, and 2 denotes a mounting board 1
A stepping motor, which is a motor for firing a ball, fixed to a screw 3 on the ball, a ball hammer 4 swingably supported by a shaft 5 on the mounting substrate 1, and a biasing hammer 6 for the ball hammer 4. A coil spring, 7 is an initial tension adjusting device of the coil spring, 8 is a stopper of the ball hitting hammer, 9 is a handle projecting from the front of the pachinko game machine, and the handle 9 has a conductive ring 10 and a lever 11 and a single-shot switch 12. Is provided. By rotating the lever 11, the wire 34 is wound up, the tension of the coil spring 6 is adjusted, and the rotation of the motor 2 for hitting and firing is related to the pin 33 provided on the shaft 5 of the ball hitting hammer 4. A matching cam 32 is provided, and when the player touches the conductive ring 10 of the handle 9, the ball firing hammer 4 is operated to reciprocate the ball hitting hammer 4 and the game ball on the firing rail of the pachinko game machine. At the game area of the game board.

The hitting ball launching motor 2 has a metal cylindrical casing 14 and has a plurality of hook-shaped engaging pieces 15 whose tips bend in one circumferential direction protruding toward the outer peripheral edge of the rear surface thereof. . Reference numeral 13 is provided on the outer peripheral surface of the casing 14 to generate a rotating magnetic field around a rotor in the casing and rotate the rotating shaft at 100 rpm.
A plurality of power supply lines 12 for supplying an alternating power supply current slightly shifted in phase are connection terminals from which the power supply lines 12 are led out.

Reference numeral 16 denotes a plastic rectangular substrate case comprising a case body 17 and a base plate 18.
A cylindrical guide 19 whose inner diameter is slightly larger than the outer diameter of the casing 14 is integrally formed on the surface of the cylindrical guide 19.
As shown in FIG. 5, an engagement hole 20 with which the engagement piece 15 can be engaged is formed in the inner bottom portion. Reference numeral 21 denotes a notch formed in a part of the cylindrical guide 19 so as to match the connection terminal 13. Reference numeral 22 denotes a rib formed on the inner peripheral surface of the cylindrical guide 19 for both reinforcement and sliding, and reference numeral 23 denotes a small protrusion protruding from the inner bottom of the cylindrical guide 19.

Reference numeral 25 denotes a hit ball firing control circuit board in which a touch switch circuit including an IC chip, a capacitor, a diode, a transistor, a resistor, and the like and a phase control circuit are mounted on a single printed circuit board. The board 25 is fixed between the case body 17 and the base plate 18 by tightening a screw 26 between the case body 17 and the base plate 18. 27 is a power supply wiring connector provided on the hit ball launch control circuit board 25, and 28 is a hit launch control circuit board 2
5 is a connector provided for wiring a signal line 29 to the conductive ring 10 and the single-shot switch 12 of the handle 9, and 30 is provided on the hit ball launch control circuit board 25 for connecting the feed line 12. Connectors, 3
1 is a ventilation hole provided in the case body 17.

The board case 16 has an engagement piece 15 formed by engaging a cylindrical guide 19 from the back of the casing 14 of the motor 2 for hitting and firing so that the notch 21 matches the connection terminal 13. 20 fits loosely. In this state, by rotating the board case 16 in a predetermined manner, the tip of the engagement piece 15 is engaged with the engagement hole 20. As a result, the board case 16 cannot be pulled out only by pulling it backward, but can be pulled out only by rotating in the opposite direction to the time of engagement to disengage the engagement piece 15 from the engagement hole 20 and then pulling it. As a result, it can be securely fixed without being unnecessarily dropped off due to vibration or the like, and can be easily attached and detached by hand when required replacement or the like.

A signal line 29 to the conductive ring 10 of the handle 9 and the single-shot switch 12 and a power supply line 12 to the hit ball firing motor 2 are provided from the board case 16 in which the hit ball firing control circuit board 25 is housed. Wiring is completed only by wiring and connecting the power cord to the power wiring connector 27, so that the configuration is very simple and the assembly is easy.

[0012]

As described above, the mounting structure of the hit ball launching control circuit board in the pachinko gaming machine of the present invention is such that the cylindrical guide formed integrally with the board case is fitted externally to the hitting launch motor from the rear side. Is rotated to engage the engagement piece, and the substrate case is detachably attached to the back of the hit ball firing motor. Therefore, tools such as a screwdriver are unnecessary, and the substrate case is used for repair, replacement, and the like. Can be easily attached and detached, the workability is improved, and the space on the back side of the hit ball firing motor can be used effectively. Moreover, since the hit ball launch control circuit board including the touch switch circuit and the phase control circuit is housed in the board case, the wiring required is simplified, the assembly is easy, and the production cost can be reduced. .

[Brief description of the drawings]

FIG. 1 is a perspective view of a hit ball launching device of a pachinko gaming machine according to the present invention.

FIG. 2 is a plan view of the hit ball launching device of FIG. 1;

FIG. 3 is a longitudinal sectional view showing a mounting structure of a hit ball launch control circuit board of the hit ball launch device of FIG. 1;

FIG. 4 is an exploded perspective view of a hit ball launch control circuit board of the hit ball launch device of FIG. 1;

FIG. 5 is a perspective view of a substrate case of the hit ball firing device of FIG. 1;

[Explanation of symbols]

 2 Motor for hitting and launching 4 Ball hitting hammer 9 Handle 10 Conductive ring 11 Lever 12 Single switch 14 Casing 15 Engaging piece 16 Board case 17 Case body 18 Base plate 19 Cylindrical guide 20 Engaging hole 25 Hitting launch control circuit board

Claims (1)

[Claims] 1. A hitting / launching control circuit board comprising a touch switch circuit and a phase control circuit, wherein a cylindrical guide is integrally formed in a plastic substrate case, an engagement hole is formed in an inner bottom portion of the cylindrical guide. Is stored in the substrate case,
By forming an engagement piece on the back surface of the casing of the cylindrical hit ball firing motor fixed to the lower back surface of the pachinko gaming machine, fitting the cylindrical guide to the casing from the back surface and rotating the board case. 2. A mounting structure for a hit ball launch control circuit board of a pachinko game machine, wherein the engaging pieces engage with an engaging hole so that the board case is detachably mounted on a back portion of a hit ball firing motor.