JPH1015162A - Shooting device for pachinko game balls - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pachinko game ball shooting device capable of using a motor of small and relatively low power consumption type, and being manufactured inexpensively. SOLUTION: An arm 12 is directly turned in a game ball shooting direction by causing a motor 13 connected to the arm 12 via a coil spring 18 to rotate in a ball shooting direction. The hammer part 12a of the arm 12 is thereby caused to hammer the game balls for the shooting thereof. According to this construction, the arm 12 can be turned in a ball shooting direction at minimum torque, and a motor of small and low power consumption type can be used. At the same time, a drive can be made with a power supply of light weight and simple structure, and inexpensive type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a pachinko ball firing device.

[0002]

2. Description of the Related Art In a current pachinko machine, while a player grips a rotary operation knob with his / her hand and rotates it by a predetermined angle or more, the pachinko machine automatically has a strength corresponding to the rotation angle. The balls are fired one after another.

[0003] The pachinko ball firing device of such a pachinko machine intermittently fires pachinko balls one by one at a cycle equal to or less than an upper limit value stipulated by laws and regulations. The arm fixed to the output shaft of the motor is displaced in the opposite direction by the arm urged in the firing direction of the pachinko ball by a spring or the like, and then is returned to strike the pachinko ball, and the arm or the cam is moved. In response to this operation, only one pachinko ball is supplied to the striking position of the arm for each striking operation of the arm.

FIGS. 2 and 3 show the main mechanical parts of the above-mentioned conventional pachinko ball firing device. In the drawings, reference numeral 1 denotes a mounting board, 2 denotes an arm, 3 denotes a cam, 4 denotes a motor, and 5 denotes a motor. rod,
6 is a support drum, 7 is a lever.

The arm 2 has a hammer 2a for hitting a pachinko ball at one end thereof. The arm 2 is rotatably supported on the mounting substrate 1 about a shaft 6a of the support drum 6, and is indicated by an arrow a by a spring (not shown). The pachinko ball shown is urged in the firing direction. The cam 3 has a substantially round shape, and the mounting board 1
Output shaft 4 of motor 4 including a reduction gear attached to
a.

The motor 4 detects the contact of the player's hand with the above-mentioned rotary operation knob (not shown), and generates a predetermined drive signal during the contact with the drive from a drive control circuit. It is rotationally driven at a constant rotational speed by a signal. At this time, the cam 3 gradually displaces the arm 2 in a direction opposite to the urging direction thereof via a lever 7 extending from the support drum 6, and a certain amount of displacement as shown by a two-dot chain line in the drawing. After that, the pachinko ball (not shown) is returned at a stretch, and is hit with the hammer 2a and fired.

The rod 5 is held by a support structure (not shown) so as to be movable up and down.
By b, the ball supplying member (not shown) is pushed up in accordance with the hitting operation of the arm 2 so that only one pachinko ball is supplied to the hitting position of the arm 2.

[0008]

However, in the above-mentioned conventional device, the spring for biasing the arm in the firing direction of the pachinko ball has a considerably high repulsive force, and is displaced in the opposite direction via the lever and the cam. Requires a large torque, and requires continuous rotation in one direction, which requires a large motor with large power consumption, and the cam, support drum, lever, and other parts require this large torque. Therefore, there is a problem that the entire apparatus is heavy, the structure is complicated and expensive.

Aside from the above, there has been proposed a device in which a rotary solenoid is used to reciprocate an arm to reciprocate to fire a pachinko ball. However, since a rotary solenoid has a large inrush current, voltage fluctuations are caused. This is liable to occur, and is susceptible to voltage fluctuations, so that there is a problem in that a large and stable power supply, that is, an expensive power supply is required.

A first object of the present invention is to provide a pachinko ball launching apparatus which can use a small-sized motor with low power consumption.

A second object of the present invention is to provide a pachinko ball firing device which can have a lightweight and simple structure.

A third object of the present invention is to provide a pachinko ball firing device which does not require an expensive power supply.

[0013]

In order to achieve the above object, according to the present invention, a hammer portion for hitting a pachinko ball is provided at one end, and is rotatably supported within a predetermined angle range. Arm, a motor that can rotate forward and reverse and can control the speed, connecting means for connecting the output shaft of the motor and the arm, and a drive circuit for rotating the motor,
The present invention proposes a pachinko ball firing device that directly converts the rotational motion of the motor into a rotational motion of the arm in the firing direction of the pachinko ball and hits and fires the pachinko ball with a hammer.

According to the above construction, since the motor and the arm are connected by the connecting means, and the rotation of the arm itself in the firing direction of the pachinko balls is directly performed by the rotation of the motor, a large torque is required as in the prior art. Also, since there is no need to rotate continuously in one direction, a small and low power consumption motor can be used, and there is no need for a high-strength cam, support drum, lever, etc. as in the past, making it lightweight and simple. And an inexpensive device can be realized without requiring an expensive power supply unlike a rotary solenoid.

Further, according to the present invention, an arm having a holding portion for holding a pachinko ball at one end and rotatably supported within a predetermined angle range, a forward / reverse rotatable speed control A motor capable of connecting the output shaft of the motor to the arm; and a drive circuit for driving the motor to rotate. The rotation of the motor is directly rotated in the firing direction of the pachinko ball of the arm. The present invention proposes a pachinko ball firing device that converts the motion into motion and releases and fires the pachinko ball from the holding portion of the arm.

According to the above configuration, since the pachinko ball is released from the holding portion of the arm and fired, it is possible to use an arm having a lower strength and a simple structure.

Further, in the above structure, if a connecting means made of an elastic body is used, the pulsation of the motor can be suppressed by the damper function, and the arm can be rotated at a speed higher than the rotation speed of the motor by the energy storage function. And can accelerate and launch pachinko balls more smoothly. The same applies to the case where an arm made of an elastic body or an arm having an elastic body in a part thereof is used.

Further, in the above configuration, there is provided a pachinko ball supply mechanism for supplying only one pachinko ball for each firing operation of the pachinko ball in conjunction with the operation of the arm, and the motor is slowly supplied when the pachinko ball is supplied. If driven, pachinko balls can be reliably supplied.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 4 show the main mechanical parts of a pachinko ball firing device according to a first embodiment of the present invention. In the drawings, reference numeral 11 denotes a mounting board, and 12 denotes an arm. , 1
3 is a motor, 14 and 15 are stoppers, 16 is a rod,
7 is a bearing and 18 is a coil spring.

The arm 12 has a hammer portion 12a for hitting a pachinko ball at one end thereof.
Is supported so as to be rotatable about a shaft 17a. The motor 13 is mounted on the mounting board 11 such that its motor shaft, that is, the output shaft directly connected to the rotor is coaxial with the shaft 17a of the bearing 17, and is a motor capable of rotating forward and reverse and controlling the speed, here known. It is a stepping motor.

The stoppers 14 and 15 are made of an elastic body such as a rubber bush, and are mounted on the mounting board 11 at positions where the rotation range of the arm 12 is restricted within a predetermined angle. In this specification, the position at which the arm 12 contacts the stopper 14 is a stationary position,
The position in contact with the stopper 15 is referred to as a hitting position.

The rod 16 is held movably up and down by a support structure (not shown).
With b, the ball supply member (not shown) is pushed up with the operation of the arm 12 described later, and only one pachinko ball is supplied to a position corresponding to the hammer portion 12a in the hitting position of the arm 12.

The coil spring 18 transmits the rotation of the motor 13 to the arm 12, and is disposed between the arm 12 and the output shaft of the motor 13, and one end thereof is fixed to a disk 19 attached to the output shaft of the motor. And the other end is arm 12
The arm 12 is urged with a very weak force in the direction of the stopper 14, that is, in the direction opposite to the firing direction of the pachinko balls. Note that the arm and the motor may be connected by a block of silicon rubber or the like instead of the coil spring. Further, the arm 12 and the output shaft of the motor 13 may be directly connected without using an elastic body as described above.

In the above configuration, while the player holds the rotary operation knob with his / her hand and turns it by a predetermined angle or more, while the motor 13 is driven by a drive control circuit described later, the arm 12 is moved to the position shown in FIG. The following four sequence operations are repeated.

That is, the first operation means that the arm 12 at the stationary position shown by the two-dot chain line in FIG. The rotation in the positive direction)
This is a balling operation (PA) in which the pachinko ball is rotated in the firing direction of the pachinko ball at a constant angle at a speed corresponding to the operation rotation angle with respect to the operation knob.

The second operation is a first pause operation (P) in which the arm 12 is held at the hitting position shown by the solid line for a certain period of time until the vibration of the arm 12 ends.
B).

The third operation is the operation of the motor 1 in which the arm 12 at the striking position is transmitted via the coil spring 18.
3, a counterclockwise rotation (hereinafter, referred to as a reverse direction) rotates the pachinko ball at a predetermined angle at a predetermined angle in a direction opposite to the firing direction of the pachinko ball (a recovery / ball supply operation ( PC). At this time, the arm 12
The rod 16 is pushed up by the other end 12b of the arm 12, and a ball supply member (not shown) is pushed up, so that only one pachinko ball is supplied to a position corresponding to the hammer portion 12a in the hitting position of the arm 12.

In the fourth operation, the vibration of the arm 12 is terminated, and the next balling operation, that is, the next similar sequence is started at a period of less than 100 shots per minute as stipulated by law. The arm 12 is left in the rest position until the second
Is a pause operation (PD).

The speed in the ball-hitting operation is controlled so as to start slowly at first and gradually accelerate, that is, so-called slow-up control. This is particularly effective in preventing step-out and maintaining a constant rotation angle when a stepping motor is used as the motor 13 as in the present embodiment.
Even when another motor is used, it is effective for smoothly operating the arm as described later. The speed in the recovery / ball replenishment operation may be basically a slow constant speed, but is further divided into two periods as described later.
The speed in the second period can be made slower than the speed in the first period to reliably supply the balls.

FIG. 6 shows the positions (rotation angles) of the rotor and the arm of the motor during the above-described four sequence operation periods.
It shows.

In the initial stage of the ball-hitting operation, the coil spring 1
Due to the deformation of 8, the position of the arm 12 changes later than the rotor of the motor 13, and conversely, immediately before hitting, the arm 12 moves ahead of the rotor due to the restoring force of the coil spring 18. In the restoring / ball replenishing operation, the position of the arm 12 changes later than the rotor of the motor 13 for most of the period due to the deformation of the coil spring 18.

In addition, a ball hitting operation and a recovery / ball replenishing operation,
That is, the position of the rotor of the rotating motor 13 draws a wavy locus corresponding to the number of poles of the stator.
It can be seen that the arm 12 has a smooth trajectory absorbed by the deformation of FIG.

FIG. 7 shows a driving circuit according to the present invention. In the drawing, 21 is an operation knob, 22 is a speed control circuit section,
3 is an electrode, 24 is a touch sensor circuit, 25 is a sequence control circuit unit, 26 is a torque control circuit unit, 27 is a motor drive circuit, and 28 is a power supply circuit.

The speed control circuit section 22 generates a voltage for controlling the rotation speed of the motor during the above-described balling operation and during the recovery / ball replenishment operation, and corresponds to the operation rotation angle with respect to the operation knob 21 during the balling operation period. As a result, a gradually increasing voltage is generated, and a predetermined voltage is generated during the recovery / ball supply operation period.

FIG. 8 shows the details of the speed control circuit section 22, in which R1, R2, R3, R4, R5, R6, R
7 is a resistor, C1, C2 and C3 are capacitors, VR1 and V
R2, VR3 are variable resistors, SW1, SW2, SW3,
SW4 is a switch.

The variable resistor VR2 changes its resistance value in conjunction with the operation knob 21, and includes a variable resistor VR1 and a resistor R.
Along with 1, R2, R3 and the capacitor C1, while the switch SW1 is on, a voltage proportional to the operation rotation angle with respect to the operation knob 21 is supplied to the reference voltage point b. Also, resistors R4, R5, R6, capacitor C2 and variable resistor VR
Reference numeral 3 supplies a predetermined voltage to the reference voltage point B while the switch SW2 or SW3 is on.

The resistor R7 and the capacitor C3 constitute an integrating circuit, integrate the voltage at the reference voltage point b, and output it to the sequence control circuit 25. The switch SW4 discharges the capacitor C3 to make the output voltage zero.

The touch sensor circuit 24 outputs a firing permission signal, here a predetermined clock, to the sequence control circuit section 25 while the human body is in contact with the human body detecting electrode 23 attached to the operation knob 21.

The sequence control circuit 25 controls the switching of the above-mentioned four sequence operations and generates a drive pattern signal and a drive voltage switching signal necessary for driving the motor 13.

FIG. 9 shows the details of the sequence control circuit 25. In the figure, 31 is a pulse generation circuit, 32 is a pulse frequency dividing circuit, 33, 34, 35, 36, and 37 are timers (counters), and 38 is This is a phase counter circuit.

The pulse generation circuit 31 is a well-known voltage-controlled oscillator, and generates a drive pulse having a frequency corresponding to the voltage output from the speed control circuit section 22. Pulse dividing circuit 3
Reference numeral 2 denotes a pattern generation on / off (MK) signal output from the phase counter circuit 38 and a clockwise / counterclockwise (C) signal together with the drive pulse output from the pulse generation circuit 31.
A drive pattern signal is created according to a W / CCW) signal.

The timer 33 (TM1) is used to reduce the number of the above-described four sequence operations, that is, the number of balling operations, to less than 100 times per minute. Count the clock and
A basic trigger signal of 66 Hz is generated.

The timer 34 (TM2) is for keeping the rotation angle of the motor 13 in the first operation constant.
From the time when the trigger signal is generated from the timer 34,
A predetermined number of drive pulses output from the pulse generation circuit 31 are counted, here, 20, for example.

The timer 35 (TM3) is for measuring a predetermined time in the second operation, and counts a predetermined number of clocks from an oscillator (not shown) from the time when the timer 34 counts up.

The timers 36 (TM4) and 37 (T
M5) makes the rotation angle of the motor 13 in the third operation the same as the rotation angle of the motor 13 in the first operation (however,
When the timer 35 counts up, the timer 36 counts a predetermined number of drive pulses output from the pulse generation circuit 31, here eight, and counts the number of drive pulses. From the time when the timer 36 counts up, the timer 37 counts a predetermined number of drive pulses output from the pulse generation circuit 31, here 12 (total 20).

When a clock is input from the touch sensor circuit 24 in the fourth operation state, the phase counter circuit 38 controls each timer, and switches SW1 to SW5 and the motor drive signal in a predetermined order. Is turned on / off to switch between a clockwise / counterclockwise (CW / CCW) signal and a drive voltage switching signal.

That is, upon receiving the trigger signal from the timer 33, the switches SW1 and SW5 and the pattern generation signal are turned on, the clockwise / counterclockwise signal is clockwise, and the drive voltage switching signal is at the high level. Enter the operation. next,
In response to the count-up signal from the timer 34, the switches SW4 and SW5 and the pattern generation signal are turned on, and the drive voltage switching signal enters a low-level operation, that is, a second operation.

Next, in response to the count-up signal from the timer 35, the switches SW2 and SW5 and the pattern generation signal are turned on, the clockwise / counterclockwise signal is turned counterclockwise, and the drive voltage switching signal is at a low level. First of operation 3
Enter the period. Further, upon receiving the count-up signal from the timer 36, the switches SW3 and SW5 and the pattern generation signal are turned on, the clockwise / counterclockwise signal is turned counterclockwise, and the drive voltage switching signal is at a low level, ie, the third operation. Enter the second period.

Finally, in response to the count-up signal from the timer 37, all switches and signals are turned off, that is, the fourth operation is started. Thereafter, when a trigger signal is issued again from the timer 33, the same operation as described above is repeated.

The torque control circuit 26 switches the torque according to the difference between the motor torque required during the first operation and the motor torque required during the second and third operations.
Specifically, it changes the supply voltage to the motor drive circuit.

FIG. 10 shows the details of the torque control circuit 26. In the figure, REG is a voltage control regulator, SW5
Is a switch. The voltage control regulator REG outputs high-level and low-level drive voltages in response to a drive voltage switching signal from the sequence control circuit unit 25. The switch SW5 supplies the output of the voltage control regulator REG to the motor drive circuit 27,
ON / OFF according to the control by.

The motor drive circuit 27 includes the torque control circuit 2
Drive voltage and sequence control circuit 2 supplied from 6
The motor 13 is driven to rotate in accordance with the drive pattern signal from the control unit 5.

The power supply circuit 28 rectifies the AC power from the commercial power supply AC and outputs the smoothed DC power to the torque control circuit 26.
And the voltage value of the DC power is controlled to a predetermined constant voltage, and the smoothed DC voltage is supplied to other circuits.

FIG. 11 shows an example of the signal waveform of each section in the present embodiment, and the operation will be described below in accordance with this.

Initially, when the player is turned on without touching the electrode 23, the timer 33 starts counting a predetermined clock and outputs a trigger signal at 1.66 Hz.
Since the other circuits do not operate and the drive control for the motor 13 is in the off state, the fourth operation state, that is, the arm 12 waits at the stationary position.

Next, when the player touches the electrode 23, a predetermined clock is supplied from the touch sensor circuit 24 to the sequence control circuit 25. When the trigger signal is output from the timer 33 in this state, the operation shifts to the first operation sequence.

[0057] In the first operation sequence, the switch SW1 of the speed control circuit section 22 to become turned on, the reference voltage point B voltage V _{RE F} proportional to the operating angle of rotation with respect to the operation knob 21 is provided. This voltage V _REF is integrated by an integrating circuit composed of a resistor R7 and a capacitor C3, and becomes a voltage V _IN that gradually increases during the first operation sequence period, and is input to the pulse generation circuit 31 of the sequence control circuit unit 25. You. The pulse generating circuit 31 generates a driving pulse having a frequency proportional to the value of the voltage V _IN , here, a driving pulse that gradually changes from a low frequency to a high frequency.
Output to

At this time, since the pattern generation ON signal and the clockwise signal are also input to the pulse frequency dividing circuit 32, the motor 13 is started slowly at first, and gradually accelerates to a certain angle and clockwise. The drive pattern signal to be rotated is output to the motor drive circuit 27. Also, the motor drive circuit 27
Is supplied with a high-level drive voltage from the torque control circuit 26.

Accordingly, the arm 12 connected to the motor 13 via the coil spring 18 starts to rotate clockwise slowly from the rest position in contact with the stopper 14, gradually rotates at a high speed, and strikes the stopper 15. Reach the position. At this time, if a pachinko ball has already been supplied, the pachinko ball is hit and emitted by the hammer 12 a of the arm 12.

When the first sequence operation for rotating the arm 12 to the striking position is completed, the operation shifts to the second sequence operation.

In the second sequence operation, the switch SW4
Is turned on, the electric charge charged in the capacitor C3 is immediately discharged, the driving pulse from the pulse generation circuit 31 disappears, the pattern generation signal is turned off, and the driving pattern signal is not output from the pulse dividing circuit 32.
On the other hand, at this time, the drive voltage switching signal is switched to the low level, but since the switch SW5 remains on,
The motor drive circuit 27 continues to supply current to the motor 13,
The arm 12 remains held in the striking position.

When the second sequence operation corresponding to a predetermined time until the vibration of the arm 12 ends, the third sequence operation ends.
Shifts to the sequence operation.

In the third sequence operation, first, the switch SW2 of the speed control circuit section 22 is turned on in the first period, so that the preset voltage V is applied to the reference voltage point b.
_REF is supplied. This voltage V _REF is integrated in the same manner as described above, much smaller than V _REF during the first sequence operation, immediately saturate during the first period of the third sequence operation, a substantially constant voltage V _IN And input to the pulse generation circuit 31 of the sequence control circuit unit 25. The pulse generating circuit 31 outputs a driving pulse having a frequency proportional to the value of the voltage V _IN , that is, a driving pulse having a frequency lower than that in the first sequence operation, to the pulse dividing circuit 32.

At this time, since the pattern generation ON signal and the counterclockwise signal are also input to the pulse frequency dividing circuit 32, a driving pattern signal for rotating the motor 13 counterclockwise at a substantially constant speed is supplied to the motor driving circuit 27. Output. The motor drive circuit 27 is supplied with a low-level drive voltage from the torque control circuit 26. Therefore, the arm 12 rotates counterclockwise at a substantially constant speed from the striking position in contact with the stopper 15.

Next, since the switch SW3 of the speed control circuit unit 22 is turned on in the second period, the preset voltage V _REF lower than the voltage in the first period is supplied to the reference voltage point b. Is done. The voltage V _REF immediately saturates in the same manner as described above, and becomes a substantially constant voltage V _IN during the second period of the third sequence operation, and is input to the pulse generation circuit 31 of the sequence control circuit unit 25. The pulse generating circuit 31 has a driving pulse having a frequency proportional to the value of the voltage V _IN ,
That is, a driving pulse having a lower frequency than that of the first period is output to the pulse dividing circuit 32.

At this time, since the pattern generation ON signal and the counterclockwise signal are continuously input to the pulse dividing circuit 32, the motor 13 rotates the motor 13 counterclockwise at a substantially constant speed, which is slower than the first period. Is output to the motor drive circuit 27. Further, the total number of drive pulses output from the pulse generation circuit 31 to the pulse divider circuit 32 in the first and second periods is set to be equal to the number of drive pulses in the first sequence operation. The motor drive circuit 27 includes a torque control circuit 2
6, a low-level drive voltage is supplied.

Accordingly, the arm 12 rotates counterclockwise at a substantially constant speed, which is slower than the first period, and returns to the rest position in contact with the stopper 14. During this time, the rod 16 is slowly pushed up by the other end 12b of the arm 12, and a ball supply member (not shown) is pushed up, so that only one pachinko ball is surely supplied to a position corresponding to the hammer portion 12a in the striking position of the arm 12. Is done.

When the third sequence operation for rotating the arm 12 to the rest position is completed, the operation shifts to the fourth sequence operation.

In the fourth sequence operation, all the switches SW1 to SW5 and the pattern generation signal are turned off, the driving pattern signal is not output from the pulse frequency dividing circuit 32, and the motor driving circuit 27 is also turned off and the motor 13 is turned off. Does not supply current. Therefore, the arm 12 remains at the rest position.

Thereafter, if the player keeps touching the electrode 23, the same first to fourth sequence operations as described above are repeated from the time when the next trigger signal is output from the timer 33.

As described above, according to the present embodiment, the arm is rotated in the firing direction of the pachinko ball by the forward rotation transmitted from the motor to the arm via the coil spring, and is hit by the mallet to be pachinko ball. Is fired, it is sufficient if there is enough torque to rotate the arm, and a small-sized and low-power-consumption motor can be used, and the strength of each part can be reduced, and a lightweight and simple structure can be used. Can be.

Further, due to the deformation of the coil spring, the pulsation peculiar to the stepping motor is absorbed, so that the arm can be operated smoothly, and the speed at which the arm is struck can be higher than the rotation speed of the motor. Also,
In the first operation sequence, that is, in the ball-hitting operation, the arm is rotated by a so-called slow-up control in which the arm starts slowly and gradually accelerates, and in the third operation sequence, that is, the recovery / ball replenishment operation. Since the arm is rotated using its own weight, torque required for the motor can be further reduced, and power consumption can be reduced.

FIG. 12, FIG. 13, and FIG. 14 show a main part of the mechanism according to the second embodiment of the present invention. Here, in the first embodiment, a coil spring is used as a means for connecting a motor and an arm. An example in which a pin, an elastic body, and a support plate are used instead is shown.

That is, in the figure, reference numeral 41 denotes a columnar pin.
One end is fixed to the arm 12 such that its axis is orthogonal to the rotation surface of the arm 12.

Reference numeral 42 denotes an elastic body made of rubber or the like, and as shown in FIG.
and a bridge portion 42b which is continuous with the bridge portion and has a through hole in the center corresponding to the pin. The other end of the pin 41 is substantially parallel to the shaft through the through hole of the bridge portion 42b. It is held so that it can be displaced freely.

A support plate 43 has a substantially rectangular shape as a whole, and has one end fixed to the shaft of the motor 13 by a set screw 44 and the other end formed with a line through which the elastic body 42 passes through the bridge portion. It is mounted so that the axis of the motor 13 is orthogonal. Reference numeral 43a denotes a groove for allowing the other end of the pin 41 to be freely displaceable with the deformation of the elastic body 42.

In the above configuration, when the support plate 43 is rotated by the rotation of the motor 13, the arm 12 connected via the elastic body 42 and the pin 41 is rotated. Similarly, in the initial stage of the ball-hitting operation, the position of the arm 12 changes later than the rotor of the motor 13 due to the deformation of the elastic body 42. Conversely, immediately before the ball-hitting, the arm 12 moves due to the restoring force of the elastic body 42. Is advanced from the rotor, and the pachinko ball can be hit and fired at a speed higher than the rotation speed of the rotor. Also in the recovery / ball replenishment operation, the position of the arm 12 changes later than the rotor of the motor 13 due to the deformation of the elastic body 42. In addition, the deformation of the elastic body 42 causes the motor 1
The third embodiment can absorb the pulsation as in the first embodiment. On the other hand, since the elastic body has a faster convergence of vibration than the above-described coil spring, it can cope with higher-speed rotation and there is almost no possibility of causing natural vibration.

The driving circuit of the first embodiment can be used as it is, and other configurations and effects are the same as those of the first embodiment.

FIGS. 15 and 16 show a main part of a mechanism according to a third embodiment of the present invention. Here, in the second embodiment, the motor shaft and the rotation shaft of the arm are replaced by a motor shaft. And an example in which the distance between the rotation axis of the arm and the pin is shorter than the distance between the pins.

That is, reference numeral 45 denotes a support plate which is longer than the support plate 43 in the second embodiment, and has one end fixed to the shaft of the motor 13 It is arranged so that the distance seen from 41 becomes farther. In this case, the bridge portion of the elastic body 42 is attached so as to be located on a line connecting the pin 41 and the axis of the arm 12.

According to the present embodiment, the rotation angle of the motor can be made smaller than the angle required for the rotation of the arm, so that the operation time of the motor can be reduced and power consumption can be reduced.
The degree of freedom in assembling into a device is increased.

The driving circuit of the first embodiment can be used as it is except for setting the rotation angle of the motor (only changing the number of driving pulses). This is the same as in the second embodiment.

Further, the motor shaft and the rotating shaft of the arm can be arranged so as to be shifted so that the distance between the rotating shaft of the arm and the pin is longer than the distance between the motor shaft and the pin.
In this case, it is necessary to increase the rotation angle of the motor, but it is possible to use a motor with a smaller torque.

FIGS. 17 and 18 show a main part of a mechanism according to a fourth embodiment of the present invention. In this embodiment, a pachinko ball is held by an arm, and is discharged and fired by rotating the arm. An example is shown below. In the figure, 51 is a mounting board, 52 is an arm, 53 is a motor, and 54 is an arm holder.

The arm 52 is made of a leaf spring-like member and has a holding portion 52a for holding a pachinko ball at one end, and the other end is fixed to a motor shaft of a motor 53 via an arm holder 54. It is supported rotatably about an axis. The motor 53 is a motor that can rotate forward and reverse and can control the speed, that is, a stepping motor similar to the above, and is mounted at a predetermined position on the mounting board 51.
The arm holder 54 is a plate-like member having substantially the same thickness as the width of the arm 52, and a part thereof has a cam shape for operating a ball supply lever (not shown).

In the above configuration, the arm 52 initially has
At the position shown by the dashed line,
Pachinko balls are supplied to a. When the arm holder 54 rotates by the rotation of the motor 53, the arm 5
2 is also rotated, but at the beginning of the ball-hitting operation, one end of the arm 52, that is, the holding portion 52a of the pachinko ball, changes its position later than the rotor of the motor 53 due to the deformation of the arm 52 itself. Immediately before the ball is hit, the holding portion 52a of the arm 52 is actuated by the restoring force of the arm 52 itself.
Can advance from the rotor, and can release and fire the pachinko ball at a speed higher than the rotation speed of the rotor.

In the recovery / ball replenishing operation, the position of the holding portion 52a of the arm 52 changes later than the rotor of the motor 53 due to the deformation of the arm 52 itself. Further, the pulsation of the motor 53 can be absorbed by the deformation of the arm 52 itself.

According to the present embodiment, unlike the case of hitting a pachinko ball by hitting hitherto, a low-strength and lightweight arm can be used, and the arm including the arm holder can be directly connected to the motor shaft. A very simple configuration can be achieved.

Although the arm itself is made of an elastic body here, an elastic body may be interposed between the arm and the motor as in the first to third embodiments. Further, as the driving circuit, a circuit substantially similar to that of the first embodiment can be used, and other effects are also the same as those of the first embodiment.

In the embodiments described above, the arm is always in a predetermined position when the power is turned on (when the motor is started) by providing a stopper on the motor itself or a position detecting mechanism on the motor or the arm. By setting so as to come, it is possible to prevent undesired operations for the player, such as hitting the pachinko ball without hitting or hitting the ball twice.

Also, in any of the embodiments described above, a motor other than the stepping motor is used as the motor.
It is possible to use a DC motor or the like. Furthermore, if the motor itself has a damper function, it is not necessary to provide an elastic body between the arm or the arm and the motor as described above, and the arm itself can also serve as the connecting means.

[0092]

As described above, according to the first aspect of the present invention, the motor and the arm are connected by the connecting means, and the rotation of the arm itself in the firing direction of the pachinko ball is performed by the rotation of the motor. Since it does not require a large torque as in the conventional case and does not need to be continuously rotated in one direction, a small-sized and low-power-consumption motor can be used. Since a lever or the like is not required, a lightweight and simple structure can be achieved, and an inexpensive device can be realized without requiring an expensive power supply unlike a rotary solenoid.

According to the second aspect of the present invention, since the pachinko ball is released from the holding portion of the arm and fired, in addition to the effect of the first aspect of the present invention, the arm having a lower strength and a simple structure is provided. It can be used.

According to the third aspect of the present invention, the pulsation of the motor can be suppressed by the damper function of the connecting means made of an elastic body, and the arm can be rotated at a speed higher than the rotation speed of the motor by the energy storage function. The pachinko ball can be accelerated and fired more smoothly.

According to the fourth aspect of the present invention, the pulsation of the motor can be suppressed by the damper function of the arm made of an elastic body or the arm having the elastic body in a part thereof, and the motor can be controlled by the energy storage function. The arm can be rotated at a speed higher than the rotation speed, and the pachinko ball can be accelerated and fired more smoothly.

According to the fifth aspect of the present invention, in the pachinko ball supply mechanism for supplying pachinko balls in conjunction with the operation of the arm, the motor is driven slowly when the pachinko balls are supplied, so that the pachinko balls can be reliably supplied. Can be supplied to

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a mechanical main part according to a first embodiment of the present invention;

FIG. 2 is a configuration diagram showing a mechanical main part of a conventional apparatus.

FIG. 3 is a configuration diagram showing a mechanical main part of a conventional device.

FIG. 4 is a configuration diagram showing a mechanical main part according to the first embodiment of the present invention;

FIG. 5 is a diagram showing an outline of a sequence operation in the present invention.

FIG. 6 is a diagram illustrating positions of a rotor and an arm of a motor during each sequence operation period.

FIG. 7 is a configuration diagram showing a drive circuit according to the first embodiment of the present invention.

FIG. 8 is a circuit diagram showing details of a speed control circuit unit in FIG. 7;

FIG. 9 is a circuit diagram showing details of a sequence control circuit unit in FIG. 7;

FIG. 10 is a circuit diagram showing details of a torque control circuit unit in FIG. 7;

FIG. 11 is a waveform chart showing an operation state according to the first embodiment of the present invention.

FIG. 12 is a configuration diagram showing a mechanical main part according to a second embodiment of the present invention.

FIG. 13 is a configuration diagram showing a mechanical main part according to a second embodiment of the present invention.

FIG. 14 is a diagram showing details of an elastic body according to the second embodiment of the present invention.

FIG. 15 is a configuration diagram showing a mechanical main part according to a third embodiment of the present invention.

FIG. 16 is a configuration diagram showing a mechanical main part according to a third embodiment of the present invention.

FIG. 17 is a configuration diagram showing a mechanical main part according to a fourth embodiment of the present invention.

FIG. 18 is a configuration diagram showing a mechanical main part according to a fourth embodiment of the present invention.

[Explanation of symbols]

11, 51: mounting board, 12, 52: arm, 13, 5
3 ... motor, 14, 15 ... stopper, 16 ... rod, 1
7 ... bearing, 18 ... coil spring, 21 ... operation knob, 22
... speed control circuit section, 23 ... electrode, 24 ... touch sensor circuit, 25 ... sequence control circuit section, 26 ... torque control circuit section, 27 ... motor drive circuit, 28 ... power supply circuit, 41 ...
Pin, 42: elastic body, 43, 45: support plate, 54: arm holder.

Claims (5)

[Claims] 1. An arm having a hammer at one end for hitting a pachinko ball and rotatably supported within a predetermined angle range, a motor capable of normal / reverse rotation and speed control. Connecting means for connecting the output shaft of the motor to the arm; and a drive circuit for driving the motor to rotate, the rotary motion of the motor being directly converted into the rotational motion of the arm in the firing direction of the pachinko ball. A pachinko ball firing device characterized by hitting and firing a pachinko ball with a hammer. 2. An arm having a holding portion for holding a pachinko ball at one end and rotatably supported within a predetermined angle range, a motor capable of rotating forward and reverse and controlling the speed. Connecting means for connecting the output shaft of the motor and the arm; and a drive circuit for rotating the motor, wherein the rotational motion of the motor is directly converted into the rotational motion of the arm in the firing direction of the pachinko ball. A pachinko ball firing device, wherein a pachinko ball is released and fired from a holding portion of an arm. 3. The pachinko ball launching device according to claim 1, wherein a connecting means made of an elastic body is used. 4. The pachinko ball shooting apparatus according to claim 1, wherein an arm made of an elastic body or an arm having an elastic body in a part thereof is used. 5. One of the pachinko balls in conjunction with the operation of the arm.
The pachinko ball firing mechanism according to any one of claims 1 to 4, further comprising a pachinko ball feeding mechanism that supplies only one pachinko ball for each firing operation, wherein the motor is slowly driven when the pachinko ball is supplied. apparatus.