JPH0499578A - Hit ball discharge device for motor-driven game machine - Google Patents

Abstract

PURPOSE:To form the hit ball discharge device for a motor-driven game machine whose noise is small, and which is small in size, light in weight and low in cost by using a solenoid for driving a discharge hammer for discharging a hit ball, and also, executing the ball discharge of 100 shots/minute, and the control of the ball discharge by a frequency dividing circuit and a timer circuit. CONSTITUTION:When a touch switch 7 detects a touch, a frequency dividing circuit 5 starts to count a pulse signal from a waveform shaping circuit 4. Subsequently. when a pulse is counted for a period corresponding to T0=0.6 second, that is, in the case of 50Hz. when 60 pulses are counted, a frequency division pulse is outputted. The frequency dividing circuit 5 is reset immediately by this frequency division pulse, and executes counting again, therefore, pulses of 100 shots in one minute can be outputted exactly. Next, an output pulse of the frequency dividing circuit 5 is converted to pulse width T1 by a timer circuit 10, amplified by a power amplifying circuit 11 and conducted electrically to a solenoid 12, and allows it to operate. By the electric conduction to this solenoid 12, a discharge hammer of a pinball discharger is attracted, and by this attracting force, one piece of pinball, is discharged.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a ball launcher for a pachinko board and an electric game machine.

(b) Conventional technology Conventional ball launchers for electric game machines such as pachinko machines are
It is equipped with a motor such as a synchronous motor or an induction motor, a drive blade, a firing mechanism, a cam, a handle, etc. As the motor rotates, the cam attached to the motor shaft rotates, causing the firing. The object is moved to the opposite side of the firing direction against the elastic force of the drive blade. Eventually, the cam comes out of the firing position, and the firing position returns to its original position due to the elastic force of the drive spring, at which time the ball is hit and fired. The strength of this pressing force is determined by the elastic force of the drive huff, and can be set in conjunction with the rotation angle of the handle.

(c) Problems to be Solved by the Invention In the conventional ball launcher of the electric game machine described above, the geared motor rotates continuously, making a lot of noise.
In addition, since there are many mechanical parts, the weight and size are large, the installation space is required, and the price is extremely high. In addition, when installing in Japan, the commercial frequency is 5
Since there are two types, 0 Hz and 60 Hz, it is necessary to make two special models, one for the 50 Hz area and one for the 60 Hz area, which cannot be shared and makes handling complicated in production and maintenance. was there. Furthermore, even if the stop switch is pressed, there is a problem in that the motor often does not stop due to the inertia of the motor.

This invention has been made in view of the above-mentioned problems, and provides an electric game machine that eliminates the use of a motor, is small, lightweight, and inexpensive, and can be easily adapted to use in 50Hz/60Hz regions. The purpose is to provide a ball launcher.

(d) The ball firing device for an electric game machine according to the invention of the means and operation port for solving the problem includes a detection circuit for detecting a commercial frequency alternating current signal, and a waveform shaping circuit for shaping the output of the detection circuit. , depending on the frequency of the commercial frequency AC signal,
A frequency selection circuit that selects either 50Hz or 60Hz, and a frequency divider circuit that receives the pulse signal from the waveform shaping circuit and divides the frequency into pulses per minute and outputs the pulses according to the frequency selection. and a prohibition circuit that prohibits pulses from being output from the frequency divider circuit when the touch switch is not pressed or when the firing stop switch is operated, and a prohibition circuit that prohibits the output pulse width of the frequency divider circuit. It is equipped with a timer circuit that sets a predetermined value, and a solenoid that operates with the output pulse of this timer circuit and drives the ball launcher.

In the ball launcher of this electric game machine, a commercial frequency alternating current signal is detected by a detection circuit, further shaped by a waveform shaping circuit, and converted into a pulse signal. Naturally, the frequency of this pulse signal is 50 in the case of a 50 ru area, for example. on the other hand,
For example, in the case of a 50Hz area, the frequency selection circuit is selected and designated as 507, so the frequency divider circuit receives a 50Hz pulse signal and divides it into K [≦100] pulses per minute, for example, 1 minute. Outputs 100 pulse signals. This pulse signal is further converted into a signal with a predetermined short pulse width by a timer circuit, and during the period of this pulse width, the solenoid operates to drive the firing mallet of the ball launcher.

(e) Examples The present invention will be explained in more detail with reference to Examples below.

FIG. 1 is a circuit block diagram of a pachinko ball launching device showing one embodiment of the present invention, and FIG. 2 is a specific circuit connection diagram of the same pachinko ball launching device.

This embodiment of the pachinko ball launcher includes a commercial frequency AC power source 1
, the detection circuit 2, the noise absorption integration circuit 3, the waveform shaping circuit 4, the frequency division circuit 5, the frequency selection circuit 6, the touch switch 7, the emission stop switch 8, and the reset circuit B9.
, a timer circuit 1°, a power amplification circuit 11, a solenoid 12, and a firing intensity switch 13.

AClooV (50/6
0)1z) stepped down to 24V is used. The detection circuit 2 is composed of a diode bridge and detects a commercial frequency signal. The noise absorbing and integrating circuit 3 is provided to remove noise superimposed on the commercial frequency signal in order to prevent the noise component from being input to the frequency dividing circuit 5 and malfunction. The waveform shaping circuit 4 shapes the pulsating current waveform output from the detection circuit 2, converts it into a pulse waveform, and inputs the pulse waveform to the frequency dividing circuit 5. The frequency selection circuit 6 includes a selection switch 6a, and can input either 50Hz or 60Hz. The frequency dividing circuit 5 counts the pulse signals from the waveform shaping circuit 4, and in the case of a 50-cell commercial frequency AC signal, when it counts 2×50×60/100=60 pulses, it outputs a frequency-divided pulse. For 60Hz commercial frequency AC signal, 2X6
When 0x60/100-72 pulses are counted, a frequency-divided pulse is output. In either case, the output pulses of the frequency dividing circuit 5 are 100 pulses/minute. The evening switch 7 is provided so that its operation is prohibited if it is not touched by a person, and the firing stop switch 8 is provided to stop the firing of pachinko balls from now on when it is operated. The touch switch 7 and firing stop switch 8 are required to be installed in pachinko machines by law, and are connected to a reset circuit 9. The reset circuit 9 resets the frequency divider circuit 5 each time the frequency divider circuit 5 outputs an output pulse, and continues to reset the frequency divider circuit 5 while not receiving a touch signal from the touch switch 7. Furthermore, even if the firing stop switch 8 is operated, in response to this, the frequency dividing circuit 5 is reset and subsequent output is prohibited. The timer circuit 10 is composed of a one-shot multi-pipe break, and when it receives a pulse from the frequency divider circuit 5, it starts for a short period of time (for example, 20m5).
ec) outputs a pulse signal. The longer this pulse width is, the longer the time for which the solenoid 12 is energized, and the more powerfully the firing mode of the pachinko ball launcher is driven. The power amplification circuit 11 is provided to amplify the pulse signal from the timer circuit 10 for driving the solenoid.

The solenoid 12 is provided to drive a firing pattern (not shown), and when energized by the operation of the power amplification circuit 11, solenoid 12 attracts the firing pattern against the elastic force of the firing pattern return spring. It has become. The switch 13a of the firing strength switch 13 is turned off when the ball hitting force for firing is within a predetermined range, and the frequency dividing circuit 5 is not reset in this state. However, if it falls outside the predetermined range, the switch 13a
is turned on and the output of the input signal 13b becomes high, resetting the frequency dividing circuit 5 and inhibiting its output. In other words, it does not drive the firing mode.

Next, the overall operation of the pachinko ball launching device of this embodiment will be explained.

When the power is turned on, a commercial frequency AC signal is input from the commercial frequency power supply 1 to the detection circuit 2. This commercial frequency AC signal is usually superimposed with noise (waveform a in Figure 3).
reference). The commercial frequency alternating current signal is detected by the detection circuit 2, and the positive polarity signal (see the waveform in Figure 3) is input to the noise absorption and integration circuit 3, where the noise component is removed, and the signal is input to the waveform shaping circuit 4. (See waveform C in Figure 3). The waveform is then shaped by the waveform shaping circuit 4 and converted into a pulse signal (see waveform d in FIG. 3). This pulse signal is transmitted to the frequency dividing circuit 5
is input. The frequency dividing circuit 5 is initial reset, and when the touch switch 7 detects a touch, the frequency dividing circuit 5 starts counting pulse signals from the waveform shaping circuit "4. Then, T o - When pulses are counted for a period corresponding to 0.6 seconds, that is, 60 pulses for 507 and 72 pulses for 607, a frequency-divided pulse (see waveform e in Figure 3) is output. .

The frequency dividing circuit 5 is immediately reset by this frequency dividing pulse and starts counting again, so that it can accurately output 100 pulses per minute. Next, the output pulse of the frequency dividing circuit 5 is converted into a pulse width T1 by the timer circuit 10 (see waveform f in FIG. 3), amplified by the power amplifier circuit 11, and energized to the solenoid 12 to operate it. By energizing this solenoid 12, the firing mode of the pachinko ball launcher is attracted, and one pachinko ball is emitted by the second attraction force. Each time the solenoid 12 is energized, the firing pattern is attracted, and the pachinko balls are struck and fired, so that 100 balls are reliably released per minute.

(F) Effects of the Invention According to the present invention, a solenoid is used instead of a motor to operate the firing mallet for firing a batted ball, and the ball can be fired at a rate of 100 shots per ball.
To obtain a ball firing device for an electric game machine that is small, lightweight, and low in price and has low noise because a frequency dividing circuit and a timer circuit are used to regulate the firing of balls and the firing of balls. I can do it.

In addition, it is equipped with a frequency selection circuit that can switch between commercial frequencies 50 and 60 Hz, for example, so it can be used in any area, eliminating the need to prepare a model specifically for the area. Capable of providing equipment. In addition, commercial frequency AC signals, detection circuits, waveform shaping circuits, and frequency dividing circuits do not require an oscillation circuit and can accurately meet the regulation values ≦
An output of 100 pulses/min is obtained. Since it does not use a motor, you can press the stop switch to ensure a reliable stop without having to worry about inertia. Furthermore, since the reset or prohibition is performed before the timer circuit, the solenoid operation always operates with a constant strength, and has various advantages.

[Brief explanation of the drawing]

FIG. 1 is a circuit block diagram of a pachinko ball launching device showing an embodiment of the present invention, FIG. 2 is a circuit connection diagram showing a specific circuit of the same pachinko ball launching device, and FIG. 3 is a circuit block diagram of the same pachinko ball launching device. FIG. 3 is a waveform diagram for explaining the operation of the device. 1: Commercial frequency AC power supply, 2: Detection circuit, 4: Waveform shaping circuit, 5: Frequency division circuit, 6: Frequency selection circuit, 7: Touch switch, 8: Emission stop switch, 9: Recenote circuit, 10:
Timer circuit, 12: Solenoid. Patent applicant: OMRON Corporation (and 1 other person)

Claims (3)

[Claims] (1) A detection circuit that detects a commercial frequency AC signal, a waveform shaping circuit that shapes the output of this detection circuit, and 50Hz or 60H depending on the frequency of the commercial frequency AC signal.
a frequency selection circuit that selects one of z, a frequency dividing circuit that receives the pulse signal from the waveform shaping circuit and divides the frequency into K pulses per minute and outputs the frequency, and a touch switch. a prohibition circuit that prohibits the frequency dividing circuit from outputting pulses when the firing stop switch is not touched or when the firing stop switch is operated; and a timer circuit that sets the output pulse width of the frequency dividing circuit to a predetermined value. A ball firing device for an electric game machine, characterized in that it is operated by the output pulse of this timer circuit and is equipped with a solenoid that drives a ball firing device. (2) The ball firing device for an electric game machine according to claim 1, further comprising a firing intensity switch to apply a pulse within a predetermined width range to the solenoid. (3) Claim 1 characterized in that a short-time integration circuit for removing noise is provided on the output side of the detection circuit.
A ball launcher for the electric game machine described above.