JPS6325788B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a game ball launching device that can be applied to game machines using game balls, such as pachinko machines and smart balls.

<Prior art> Conventional game ball launching devices include, in addition to a general launching device that rotates a firing rod by a cam provided on the output shaft of a motor, devices that use a plunger type solenoid, for example, those using a plunger type solenoid. Publication No. 49-149088 and Actual Publication No. 42
It is known from the publication No.-22163.

<Problems to be Solved by the Invention> A conventional firing device that rotates a firing rod by a cam provided on the output shaft of a motor is operated by a player against the bias of an elastic spring connected to the firing rod. Since you have to turn the dial, your wrists will get tired if you play the game for a long time.

Furthermore, the firing device described in Japanese Utility Model Application Publication No. 49-149088 cannot take a long stroke of the firing mallet, so the direction of the ball is thrown out of order, and the spring force for each shot is not stable. Therefore, the so-called uneven flight phenomenon tends to occur, and the flight distance of the ball becomes unstable, making it extremely difficult to put it to practical use.

Furthermore, although the firing device described in Japanese Utility Model Publication No. 42-22163 can adjust the flight distance of the batted ball by adjusting the excitation force of the solenoid using a variable resistor, the push button switch is not turned on and off each time. Since the ball does not fly far, your wrist will get tired if you play the game for a long time, and since the firing rod is rotated by the solenoid's striking center, the firing force becomes unstable, making it impossible to put it to practical use. .

<Means for Solving the Problems> The present invention has been provided in view of the above, and includes a movable rod that has a resilient portion at its tip and can move along the firing direction of the firing rail, and a movable rod that can move along the firing direction of the firing rail. A magnetism generating mechanism having a plurality of excitation coils arranged along a direction, and a control circuit having a pulse power supply control means for intermittently operating this magnetism generating mechanism and controlling the excitation timing of each excitation coil to be staggered. Configured.

<Operation> The control circuit excites the excitation coil of the magnetism generating mechanism while shifting the timing to generate a moving magnetic field, and this moving magnetic field causes the movable rod to move instantaneously, and the elastic part at the tip of the rod causes the game ball to be struck. fire.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, 1 is a pachinko machine, and game balls supplied from a ball supply tray 2 to a firing device 3 are as follows:
The ball is launched into the game section of the game board 6 via the guide rail 5 by the firing device 3 whose strength can be adjusted using the flight distance adjustment dial 4.

The firing device 3 is driven and controlled via a control circuit 8 by, for example, a start operation switch 7 provided on a part of the adjustment dial 4.

As shown in FIG. 2, the launcher 3 is constructed as a unit on a board 12 on which a launch rail 11 is formed. That is, the board 12 has a vertical plate part 13 and a firing rail 11 extending diagonally upward at the upper front part of the vertical plate part 13.
The lower end 11A of the firing rail 11 is bent rearward and upward to form a firing position, and is configured to receive game balls supplied from the ball supply tray 2 at this firing position.

A through hole 11B is closed at the above-mentioned firing position, and the firing portion 15 of the firing device main body 14 projects from the rear through the through hole 11B, so that the game ball at the firing position is fired. . Launcher body 1
4 has a movable rod 17 made of a magnetic material and has a spring 16 at a spring 15 at the tip, and this movable rod 17 is connected to guides 18A and 18B provided at front and back positions on the rear extension line of the launch rail 11. It is supported so that it can move freely back and forth.

An abutment plate 19 is provided at the rear of the movable rod 17, and a return spring 21 inserted between a stopper 20 fixed to the rear end of the movable rod 17 and the rear guide 18B causes the movable rod 17 to move toward the stopper 20. It returns to the standby position where it abuts against the abutting plate 19. Note that 22 is a sound deadening rubber attached to the abutting plate 19.

A movable rod 1 is located between the guides 18A and 18B.
As a magnetic generation mechanism that generates magnetism acting on the movable rod 17, a pair of excitation coils 31A and 31B are connected to the movable rod 17 with a partition plate 32 made of a non-magnetic material in between.
along the direction of movement. These pair of excitation coils 31A, 31B are wound on a sleeve made of a non-magnetic material that is inserted into and extended inside the movable rod 17 so as not to come into contact with it.

The excitation coils 31A and 31B are supplied with excitation currents whose phases are shifted by the control circuit 8, and are thus configured to generate a moving magnetic field in the direction in which the movable rod 17 projects forward. That is, as shown in FIG. 3, the control circuit 8 causes the pulse oscillation section 35 to oscillate using the start operation switch 7, and supplies the oscillation output axis to the intermittent circuit 37 as its control input via the pulse amplifier 36. .

The intermittent circuit 37 receives the output of the sine wave oscillator 34 and inputs this output as a control input from the pulse amplifier 36.
Intermittent by COL. Here the control input COL is
For example, with a repetition frequency of 100 pulses per minute,
The frequency is selected so that one game ball is fired for each pulse.

Intermittent sine wave signal SIG obtained in the intermittent circuit 37
is adjusted in the voltage amplitude adjustment circuit 38 to an amplitude according to the adjustment position of the flight distance adjustment variable resistor 39, and outputs an excitation current to the excitation coils 31A and 31B. The output current of the voltage amplitude adjustment circuit 38 is directly supplied to the rear excitation coil 31A, and is also supplied to the front excitation coil 31B through the phase advancing capacitor 40.

In the above configuration, the player operates the start operation switch 7 to put the control circuit 8 into operation, and causes the excitation current to flow intermittently through the excitation coils 31A and 31B. At this time, the front excitation coil 31
The excitation current B is advanced in phase by 90 degrees from the excitation current of the rear excitation coil 31A due to the phase advance capacitor 40. Therefore, the combined magnetic field Φ _t generated by the excitation coils 31A, 31B as a whole moves from the rear excitation coil 31A side to the front excitation coil 31B side, and as a result, the movable rod 17 is affected by this moving magnetic field Φ _t. Move forward instantly. Therefore, the springing portion 15 of the movable rod 17 projects from the rear side of the through hole 11B onto the shooting rail 11 to spring the game ball at the shooting position.

As mentioned above, in this embodiment, the sine wave oscillator 3
4. A control circuit 8 having a pulse power supply control means consisting of a pulse oscillator 35, a pulse amplifier 36, an intermittent circuit 37, a voltage amplitude adjustment circuit 38, a phase advancing capacitor 40, etc. intermittently applies an excitation current to the excitation coils 31A and 31B. The movable rod 17 is instantaneously moved to fire one game ball at a time.

The elastic force at this time can be arbitrarily adjusted by adjusting the variable resistor 39 of the control circuit 8 using the adjustment dial 4 and changing the excitation currents of the excitation coils 31A and 31B.

After the movable rod 17 bounces the game ball in this way, when the excitation current stops flowing to the excitation coils 31A and 31B, the rear end of the movable rod 17 hits the abutting plate 19 due to the bias of the return spring 21. Return to the contact position.

In the above embodiment, the excitation current to the front excitation coil 31B is applied via the phase advance capacitor 40 to obtain two-phase currents with phases different by 90 degrees, but the pulse power supply control of the present invention The means may be of any configuration as long as the excitation timing of each excitation coil can be shifted. For example, as shown in FIG. The excitation current supplied to the 31A side is 90
It may also be delayed.

Further, in the above description, the excitation coils 31A, 31
When the excitation current to B is cut off, the return spring 21 is used to return the movable rod 17, but instead of this, as shown in FIG. By connecting a capacitor 53 (or a coil) between the fixed contacts a and b of the changeover switch 52, when the movable rod 17 protrudes, the advanced phase current is transferred to the rear excitation coil 31A. You may also give it to With this configuration, the return spring 21 can be omitted, and the structure can be further simplified.

Further, in the embodiment, a pair of excitation coils 31
A and 31B constitute the magnetism generating mechanism, but this magnetism generating mechanism is not limited to a pair of excitation coils, but can generate a moving magnetic field by disposing a plurality of excitation coils along the moving direction of the movable rod 17. Any configuration may be used as long as it is suitable.

<Effects of the Invention> As explained above, according to the present invention, a moving magnetic field is generated by a magnetic generation mechanism consisting of a plurality of excitation coils, and the moving magnetic field instantaneously moves the movable rod to shoot game balls. I did it like this,
Compared to a conventional firing device using a plunger type solenoid, the movable rod can take a longer stroke, thereby stabilizing the firing direction of the ball and also stabilizing the flight distance. Therefore, it is possible to eliminate the so-called uneven jump phenomenon that could not be solved with the conventional firing device using a plunger type solenoid, and this makes it possible to put it into practical use.

Further, according to the present invention, since the configuration is simple, assembly work and maintenance/inspection work are much easier than in conventional launching devices.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of a pachinko machine, FIG. 2 is a perspective view of a game ball launcher, FIG. 3 is a block diagram of a control circuit, and FIG.
5 and 5 are block diagrams of other embodiments of the control circuit. In the figure, 1 is a pachinko machine, 3 is a firing device, 8 is a control circuit, 14 is a firing device main body, 15 is a firing part, 1
7 is a movable rod, 18 is a guide, 31 is an exciting coil, 35 is a pulse oscillator, 37 is an intermittent circuit, 38
39 is a variable resistor for adjusting flight distance, 40 is a phase advance capacitor, and 45 is a coil.

Claims (1)

[Claims] 1. A movable rod having an elastic portion at the tip and movable along the firing direction of the firing rail, a magnetism generating mechanism having a plurality of excitation coils arranged along the moving direction of the movable rod, and this magnetism generating mechanism. and a control circuit having a pulse power supply control means that operates intermittently and controls the excitation timing of each excitation coil to be staggered, and the control circuit sequentially excites and moves the excitation coils of the magnetism generating mechanism. A game ball launching device characterized in that a movable rod is instantaneously moved by generating a magnetic field, and a game ball is launched from a springing portion at the tip.