JP2741504B2 - Pachinko machine launching equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko game machine.
It relates to a launching device. [0002] Interlocking with an operation handle provided on the front of a game board
The hammer is repeatedly driven by the launching motor to play the game ball.
Pachinko game machines that are continuously launched on the technical board surface
Launchers of this type are known, and in this type of launcher,
AC synchronous motor or
Uses an AC induction motor. A synchronous motor has a small step angle.
And the efficiency is low.
When using a small motor due to the limitation of the pace,
A reducer is provided to obtain output torque. Indushi
Low-speed rotation is difficult due to the motor configuration
Therefore, a speed reducer is used. [0004] By the way, a pachinko game machine has a game ball firing.
The number of times is generally 100 or less per minute according to laws and regulations.
Restricted below. In addition, the quotient that
The frequency of the power supply for the pachinko machine is 50 depending on the destination.
Since it is different from 60Hz or 60Hz,
Depends on the synchronous motor or induction motor
In conventional equipment equipped with a motor, the deceleration attached to the motor
Set the speed reduction ratio of the aircraft according to the required number of launch balls and the destination.
I have. [0005] Thus, the reduction ratio is set according to the destination.
The conventional launching device using a speed reducer that needs to
Production planning, inventory management, etc. are complicated, and product cost increases
Cause. The reduction gear is composed of mechanical parts.
5,000 hours of service life due to wear of components
Life is short due to the short number of parts and the large number of parts
Is also big. [0006] Also, a gear rotation noise is generated from the reduction gear.
And fill it with grease to reduce this noise.
Grease splatters over time and components
Vibration and noise gradually increase,
This vibration is transmitted to the player via the rotating handle of the
In combination with the generation of sound, it is a cause of impairing the game feeling. [0007] Further, the conventional launching device uses a reduction gear.
To the mechanical output of input power
Easy to generate heat due to low conversion efficiency, that is, motor efficiency
And the power consumption is large.
This is particularly problematic when installing hundreds of technical machines.
You. In addition, the rotation speed varies according to the load due to the operation principle.
When using an induction motor that operates,
Load caused by manufacturing variations in launchers including
The rotation speed and, consequently, the number of shot balls
There is a problem that a key is easily generated. [0009] Separately, a ball for launching a game ball is provided.
The hammer means and the hammer means are urged in the launch direction of the game ball.
Spring means and the output shaft of the firing motor
And move the hammer means in the anti-launch direction.
And a cam means which is freely detachable.
In both cases, the power output for the firing motor is different from the power output.
Frequency converter for converting to an energized power supply with
Different kinds of output or frequency converter output frequency
To select and supply a certain type of frequency to the firing motor.
Hitting of a pachinko machine with a hitting speed selection switch
The launching device is known as JP-A-53-102138.
You. This is a selection of a hitting speed selection switch.
Depending on the operation, the plurality converted by the frequency converter
One of the energized power output and power output at
By selectively supplying the firing motor, the firing motor
The rotation speed of the motor is switched between high speed, medium speed, and low speed.
You. [0011] Of these, the AC power supply is connected to the DC power supply.
A rectifier circuit that rectifies the pressure and the output of the rectifier circuit
Three thyristor inverters that change frequency and three
Provided for each gate of thyristor inverter
Frequency conversion device by the three gate signal generation circuits
A stepper motor as a launching motor,
Three outputs of the frequency converter, ie three thyristors
Turn off the step motor for each output line of the inverter.
A switchable connection is presented. [0012] This includes "easy changing the generated frequency.
Use a thyristor inverter that can
In addition, as a driving motor M of the hammer H, a pulsed voltage is used.
A stage that is driven to rotate and changes the number of rotations according to the pulse frequency
(See page 8, lower left column, No. 8)
Line to the same column, line 15), gate signal generation circuit GS1
Generates a gate signal at a relatively early cycle and
Give to the lister inverter T11 (page 5, lower right column, fifth row)
From the same page, the same column, line 7), the first thyristor
The data T11 converts the DC voltage to a pulsed
Pressure (from page 12, lower right column, line 12 to page 14, lower column, column 14)
Row), the stepping motor SM is provided with a hit ball selection switch PBS.
Of the thyristor inverter selected by pressing the
It is driven to rotate based on the output frequency.
Line to the same column, line 8). It is described. However, thyristor inverters are not
Thyristor, because it converts the flow into alternating current.
Data output from the gate signal generator.
AC voltage converted to a frequency corresponding to the signal
And not a pulsed voltage.
Therefore, each output of the three thyristor inverters
Motors are limited to AC motors.
According to the circuit configuration shown in FIG.
It is impossible to drive a step motor
Is, after all, a feasible launcher
It is not, it is simply a ball launcher for pachinko machines
Technical idea of using a stepper motor as a drive source
It merely disclosed the idea. SUMMARY OF THE INVENTION The object of the present invention is to
Pulse motors as launching motors for launching machines
And use a speed reducer without a reduction gear.
Determine the launch motor that operates the hammer that launches the ball
Stable, low speed, and smooth rotation at a controlled speed
Gear noise generated by the reducer.
Problems, reducing the frequency of failures in equipment, and
Motor vibration and noise reduction for players
Provide a launching device for pachinko gaming machines that can achieve deterrence
It is in. [0015] A pachinko game according to the present invention.
The launching device of the machine is a hammer means for launching a game ball
And a firing motor for driving the hammer means.
In order to solve the above-mentioned problem,
The pulse motor with a step angle of 1.8 degrees.
Selected from a crystal oscillator and a ceramic oscillator.
The pulse motor is driven based on the oscillating operation of the oscillator.
A pulse that generates a pulse signal for rotating the step
Generator and a pulse signal from the pulse generator.
For each of the plurality of stator coils of the pulse motor
An excitation signal is output for a predetermined time after a predetermined period
A pulse motor drive circuit for conducting magnetic current
And features. Embodiments of the present invention will be described below with reference to the drawings.
This will be described in detail with reference to FIG. FIG. 1 is a launching apparatus for a pachinko game machine according to the present invention.
FIG. 2 is a block diagram showing the overall configuration of the present invention.
Schematic configuration showing the game ball launching mechanism of the launching device according to the embodiment
FIG. The firing mechanism 1 includes a pulse motor as a firing motor.
With a single-blade cam 3 directly connected to the output shaft of the motor 2
I have. And hammer 4 for launching game ball 100
With its hitting part facing the end of the game ball rail 5.
The hammer 4 has a base end engaging portion that engages with the outer peripheral cam surface of the cam 3.
It is swingably supported so as to come off. A hammer 4 is punched in the middle of the hammer 4.
One of the wires 7 on which a spring 6 biasing in the
The ends are connected and the wire 7 is driven out of the hammer 4
Wound around pulleys 8 spaced apart from each other,
The end side of the operation handle 9 that can be rotated by the player
It is wound up by a pulley 10 fixed to a rotating shaft.
It is being done. Reference numeral 11 indicates a state when the handle 9 is not operated.
With a balance spring to determine the rotational position of pulley 8
is there. In FIG. 1, the voltage of a commercial power supply not shown
Power supply unit 2 for transforming the voltage to a predetermined voltage, for example, 24 V
1 and the DC power supply unit 23 for the motor
Power on / off control circuit (or simply
Switch circuit) 22 so as to be intermittent.
When the dollar 9 is not operated, it is cut off from each other to save power
It is supposed to be. The DC power supply unit 23 for the motor includes a rectifier circuit described later.
The output side includes a DC power supply unit 24 for a control circuit,
Motor 2 and for supplying each phase drive current to the motor
Connected to the pulse motor drive circuit 25 of the
21 is converted into DC power and supplied to these elements.
It has been like that. The control circuit DC power supply 24 is preferably
More preferably, it is composed of a stabilized power supply, and includes an oscillation circuit 26 and a frequency dividing circuit.
27 and the pulse motor drive circuit 25 and the player
Touch switch for detecting whether or not touching dollar 9
Switch circuits 28, respectively, and supplies the operating power of each circuit.
None, and the oscillation circuit 26 and the frequency dividing circuit 27
Generates a pulse for rotating the motor 2 in steps
It constitutes a pulse generator. In addition, pulse motor drive
The pulse motor 2 is connected to the output side of the driving circuit 25.
You. FIG. 3 shows a first embodiment of the circuit section of the launching apparatus 1.
The form is shown (however, AC power supply unit 21 and power on / off system
The control circuit 22 is not shown).
Wave rectifier circuit, alternating current by diodes D1 to D4
Full-wave rectification of the 24 V AC input from the power supply unit 21
V DC voltage is obtained, smoothed by the capacitor C1,
A voltage Vm as a data drive power supply is obtained. The control circuit DC power supply 24
A resistor R7 connected to the output side of the power supply unit 23 and a Zener die
It consists of a series circuit with an ode D5, a resistor R7 and a Zener
From the connection point with the diode D5, the Zener current of the diode
The stabilized voltage Vcc determined by the voltage is
It is designed to be taken out as operating power. The oscillation circuit 26 includes a crystal oscillator or a ceramic.
Mick oscillator X1 and connected in parallel to oscillator X1 respectively
Resistor R1, inverter U2-1 and oscillator X1
Each of the capacitors C2 and C3 connected in series
In order to make the number of rotations of the pulse motor 2 required,
Is controlled so that the oscillation frequency becomes 2.676 MHz, for example.
Road constants are selected. Further, after the oscillation circuit 26
Has a differentiating circuit 31 including a capacitor C4 and a resistor R2.
Through 15 flip-flop circuits (all shown)
(Omitted) is provided. The pulse motor drive circuit 25 is a unipolar type.
In the 2-2 phase excitation system, both input terminals are connected to the fourteenth
Output of the flip-flop circuit of the first stage and the fifteenth stage (final stage)
Exclusive OR connected to input side Q14, Q15 respectively
The circuit U2-2 has an input terminal connected to the output side of the circuit U2-2.
Connected to the inverter U2-3 and the input terminal is a frequency divider 27.
Connected to the output Q15 of the last flip-flop circuit
Inverter U2-4 and transistors T1 to T4
And diodes D6 to D9. And
The transistors T1, T3, and T4 connect the resistors R3, R4, and R6.
Exclusive OR circuit U2-2, inverter U2-
3, U2-4, and connected to the output side, respectively.
The resistor T5 is connected to the final stage of the frequency divider 27 via a resistor R5.
Connected to the output side Q15 of the flip-flop circuit.
Collector terminals of transistors T1 to T4 and DC power supply for motor
Diodes D6 to D9 are connected between 23 output sides
Have been. The pulse motor 2 is shown in FIGS.
Thus, a four-phase hybrid pulse motor is used. The model
The stator S of the motor 2 is a bifilar wound stator for each phase.
The coils φ1 to φ4 are wound, and the first phase coil φ1 and the third
Phase coil φ3, second phase coil φ2 and fourth phase coil
And φ4 each make a pair, these stator coils
The common side of φ1 to φ4 is the output of the DC power supply unit 23 for the motor.
And the other side of the stator coils φ1 to φ4 of each phase
Connected to the collector side of the corresponding transistor
(FIG. 3). The rotor R has a two-pole magnet MG and its
And rotor cores RC fitted on both sides of the rotor core. The row
Tacoa RC is a laminated silicon steel sheet. Iron-based sintered alloy, massive pure iron,
Although it can be composed of massive mild steel, it is preferable to use massive pure iron.
I have. In this case, an eddy current is generated in the rotor core RC.
The vibration of the rotor R is suppressed and the rotation becomes smooth. And
50 rotor poles are formed on both rotor cores RC.
Are shifted from each other by an angle of 3.6 ° and are equivalent
A 100-pole magnet is formed. Motor 2
The step angle is 1.8 °. Hereinafter, the pachinko game constructed as described above will be described.
The operation of the launching device of the technical machine will be described. The player grips the operation handle 9 to rotate the operation.
The power on / off control circuit 22 is turned on.
Accordingly, the AC power supply unit 21 is turned on, and the DC power supply for the motor is turned on.
The power is supplied to the source unit 23. This AC input 24V is
23 and converted into a DC voltage Vm of about 32 V
Of the stator coils φ1 to φ4 of the pulse motor 2.
Mon side, diode D6 of pulse motor drive circuit 25
D9 on the cathode side and DC power supply 24 for control circuit
And the voltage Vm is changed to the voltage Vc in the power supply unit 24.
Divided to c. Predetermined operation from DC power supply 24 for control circuit
When supplied to the voltage Vcc, the pulse motor drive circuit 25,
The oscillation circuit 26 and the frequency dividing circuit 27 are activated.
The oscillation circuit 26 emits a frequency of about 2.676 MHz.
The oscillation output is supplied to the frequency dividing circuit 27 via the differentiating circuit 31 (FIG. 3).
Supplied, and the last flip-flop circuit of the circuit 27
Is divided into a clock Q15 of 81.665 Hz. The fourteenth stage of the frequency dividing circuit 26 and the
Frequency-divided outputs Q14, Q from the last-stage flip-flop circuit
The exclusive OR signals of the 15 exclusive OR circuits U2-U2-
2 to the transistor T1 via the resistor R3.
The inverted output is output from the inverter U2-3 via the resistor R4.
The frequency is supplied to the transistor T3,
The pulse output Q15 from the last stage circuit of FIG.
The inverted output of the pulse output is input to the transistor T2.
The transistor T4 is connected from the inverter U2-4 via the resistor R6.
Supplied to As a result, the transistors T1 to T4
On / off operation is performed in the sequence shown in FIG.
The stator coil of the pulse motor 2 is
The winding current flows sequentially through the motor, and the pulse motor 2 rotates. As described above, the step angle of the motor 2 is
At 1.8 °, in other words, the motor 2 runs every minute without a reducer
It rotates at a low speed of 98 rotations. Also, the oscillation frequency
2.730 MHz, and similarly, the frequency divider circuit has 15 stages.
Then you can get exactly 100 revolutions per minute
You. Here, a 4-phase or 2-phase step angle of 1.8 °
Using a loose motor as an example, the oscillation frequency, the number of frequency division stages, and the pulse
The relationship with the motor speed will be described. As can be seen from the sequence of FIG.
In the case of phase excitation, the frequency of the divided output and the clock frequency
(Frequency for rotating the motor by 1.8 °) is 4.
And the number of revolutions per minute N (RPM) of the motor
The number of rotation steps is ns (20 if the step angle is 1.8 °).
0 step), the number of frequency dividing stages is 2 ⁿ (2 to the nth power), oscillation frequency
If the number is f (Hz), it can be calculated from the following equation. N = (f × 4 × 60) / (2 ⁿ Xns) (RPM) where 60 is to convert the number of revolutions per second to the number of revolutions per minute
Is the coefficient of The number of dividing stages is 15 and the oscillation frequency is
The motor rotation speed N at 2.676 MHz is 2 ⁿ = 2
^Fifteen = 32768 and f = 2676000 Hz
N = (2676000 × 4 × 60) / (32768 × 200)
Approximately 98 (RPM). The oscillation frequency is 2.
At 730 MHz, N = (2730000 × 4 × 60) /
(32768 x 200), which is almost 100 (RPM). The rotation speed of the motor 2 is mainly
Fluctuates depending on the oscillation accuracy of the oscillator X1 in the path 26,
Since the oscillation frequency of the oscillator is extremely stable,
The numbers do not fluctuate substantially. Moreover, the pulse motor driving circuit 26 is provided.
The motor rotation is circular due to the action of the diodes D6 to D9.
It is smooth. That is, the diodes D6 to D9 correspond.
It keeps the winding current even after the transistor is turned off
Therefore, the winding currents I1 to I4 are shown in FIG.
As shown by the reference sign Wf, the fall is gradual. Soshi
The torque generated by the first phase winding current and the third phase winding current
And the torque generated by the
The equivalent current waveforms I1 ″ and I3 ″ after the killing are as shown in FIG.
And the pulse motor 2 becomes a sinusoidal wave
It rotates with the smoothness equivalent to the laser drive system, and the self-start frequency range
Drive at the low frequency of about 82Hz corresponding to
Can sufficiently suppress the motor vibration. As described above, the driving of the motor at a low frequency is performed.
As a result, heat generation of the motor is mainly caused by copper loss due to coil resistance.
And the consequences of iron loss are virtually negligible,
Reduced. Note that, as described above, the pulse motor 2
When the data core RC is composed of massive pure iron,
The motor vibration is further suppressed by the generated eddy current. Soshi
Therefore, a high-efficiency pulse motor 2 was used as the firing motor.
As a result, a small motor can be used without using a reducer.
The required output torque can be obtained.
55mm, 1.5kg ・ cm torque can be obtained and outer diameter
Output torque of synchronous motor of 60mm, total length 60mm
Excellent compared to about 500g-cm. When the pulse motor 2 rotates, the motor
The cam 3 directly connected to the output shaft of the
3 presses the base engaging portion of the hammer 4 with the outer peripheral cam surface.
As a result, the hammer 4 is moved with the rotation of the operation handle 9.
The spring is provided against the elastic force of the extended spring 6 and
Swinging in the anti-launch direction while further extending the lug 6.
The cam 3 rotates over a predetermined rotation angle with the rotation of the motor.
, The engagement between the cam 3 and the hammer 4 is released, and the hammer 4
It is urged in the launching direction by the spring force of the pulling 6,
The game board of the pachinko game machine with the ball 100 along the rail 5
Fire on a surface. The operation handle 9 is operated by a predetermined operation.
As long as the angle is maintained, the rotation of motor 2 continues
The cam 3 and the hammer 4 repeatedly engage and disengage, and the game balls
Fired consecutively. FIG. 9 is a circuit diagram of a second embodiment of the launcher of the present invention.
In the second embodiment, a firing motor is used.
Of 2-phase HB type (2-phase hybrid type) pulse motor
Drive control by the pulse motor drive circuit of the bipolar excitation system
The first embodiment differs from the first embodiment in that the
By using the motor excitation method, the output torque of the firing motor
Power consumption and calorific value
You. Excitation of the pulse motor and the pulse motor drive circuit
The components of the launch device other than the magnetic circuit unit are the same as those of the first embodiment described above.
Since it is the same as that of the embodiment, illustration and description are omitted.
You. Excitation circuit section 25 'of pulse motor drive circuit
In FIG. 9, the stator coil φ of the pulse motor 2 ′
4 power transistors corresponding to each of 1 ′ and φ2 ′
T11, T12, T11 ', T12' and T13, T1
4, T13 'and T14', respectively,
The both ends of φ1 'are the collection of transistors T11 and T12'.
Between collectors and between transistors T11 'and T12
The stator coil φ
2 'are connected between the transistors T13 and T14' and
It is connected between the transistors T13 'and T14. Then, the transistors T11 to T14
The resistors R3 to R3 of the pulse motor drive circuit 25 in FIG.
Resistors R3 'to R6' corresponding to R6 are respectively connected.
ing. Further, the collection of the transistors T11 to T14 '
Diodes D11 to D14 'between the
And transistors corresponding to the transistors T11 to T14.
The cathode is on the cathode side and the transistor T11 '
The transistor corresponding to T14 'is a transistor on the anode side.
Connected to the collector side. C5 is the coil accumulation energy
One end of DC power supply for motor
The other end of the output side of the unit 23 is grounded. The operation of the circuit section of the launching apparatus having the above configuration is basically
This is basically the same as that of the first embodiment, but
The operation will be described. Excitation circuit 25 'of pulse motor drive circuit
Of pulses supplied to the resistors R3 'to R6'
Is similar to that of FIG. 6 and is based on the bipolar driving method.
If rewritten, it becomes as shown in FIG. That is, the stator
On the coil φ1 'side, a pair of transistors T1
1, T11 'and a pair of transistors T12, T12'.
Turns on alternately, even if it is on the stator coil φ2 'side.
The same is true. Then, the transistors T11 and T11 'are
When turned on, the excitation current from the motor DC power supply 23
However, as shown by an arrow I1 'in FIG.
1 'pulse motor 2' stator coil φ1 'and transformer
It flows to the ground terminal GND via the transistor T11. Ma
When the transistors T12 and T12 'are turned on,
As indicated by arrow I2 ', the exciting current is
12 ', coil φ1' and transistor T12
It flows to the ground terminal GND. Similarly, the stator coil φ
2 'corresponds to the on / off of the transistors T13 to T14'.
Excitation currents I3 'and I4' flow in the same direction. Then, a pair of transistors, for example, a transistor
When the transistors T11 and T11 'are turned off, the exciting current I1'
Decreases slowly as shown by reference numeral Wf 'in FIG.
You. That is, the transistors T11 and T11 'are turned off.
Immediately after the operation, the electric energy stored in the stator coil φ1 '
Gi, the stator coil φ1 '→ diode D12' → con
Capacitor C5 → ground terminal GND → diode D12 → fixed
Excited along closed loop (Fig. 9) consisting of child coil φ1 '
It flows as current Wf '. Thus, the stator coils φ1 ', φ
2 'is processed.
Each monofilament wound after the excitation signal is turned off
In these stator coils φ1 'and φ2', the stator coils
The bidirectional exciting current flowing through the
Excitation current supplied to each of the two-phase stator coils
Is shaped so that it gradually falls, and is shown in FIG.
As a result, the waveforms of the exciting currents I1 'and I2' are sinusoidal.
As a result, the pulse motor 2 'rotates smoothly. According to this bipolar driving method, copper loss,
When the calorific value and temperature rise are the same,
The required coil current can be reduced to 70% compared to the
Luk is about 1.4 times. In addition, the same generated torque is obtained.
In this case, the required current and the heat value are about 50
%. Unipolar drive is said to be low cost.
There are advantages. The bipolar drive circuit is a PM type
(Permanent magnet type) or (permanent magnet type)
And HB type (hybrid type) 2-phase to 5-phase pulse mode
Applicable to data. The present invention is not limited to the above embodiments, but
Various modifications are possible. For example, in the above embodiment, the DC
The source unit 23 is a capacitor input type rectifier circuit from the viewpoint of economy.
However, the choke input type rectifier circuit is also economical.
In order to suppress the fluctuation of the characteristics of the pulse motor 2,
Preferably, a stabilized power supply is used. The frequency of the oscillator of the oscillation circuit 26 is reduced.
Crystal oscillator or ceramic oscillation for better qualification
Using a piezoelectric tuning fork, which also has excellent frequency stability
A pendulum may be used. In addition, the temperature characteristics of components
Examining semiconductor devices, semiconductor integrated circuits, resistors,
Various combinations of capacitors and inductance coils
An oscillation circuit may be used.
Amplifier oscillation, UJT oscillation, transistor type unstable multi
Vibrator, oscillation by inverter IC, one-shot
Oscillation by IC, NE555 (trade name, Texas Instruments
Instrument), ISL8038 (trade name,
Oscillation by a dedicated IC such as Tarsil Corporation can be used.
Then, the frequency of the output of the oscillation circuit 26 is
It can be used when it is expensive, and is not essential. In the above embodiment, the motor current consumption, the motor
Output temperature as well as motor temperature rise and motor vibration.
Motor drive plays an important role in increasing power
The circuit is composed of unipolar and bipolar drive circuits
However, bipolar chopper sign wave drive,
Unipolar Chopper Sign Wave Drive or Emi
A tta follower drive type may be used. Chopper type
The drive circuit is connected to the coil when the chopper control element is turned off.
The stored energy is released as the excitation current while the
Since the supply of current from the DC power supply for
Power consumption can be reduced. In addition, emitter follower type drive
The circuit can be reduced in cost, and a sinusoidal excitation current waveform can be obtained.
Can be In the above embodiment, as shown in FIG.
Power on / off control circuit 22 for power saving
However, instead of this, it is launched into the pulse motor drive circuit 25.
A switch for exciting current cutoff in response to the touch switch of mechanism 1
A gate circuit 22a is provided to cut off the exciting current of each phase.
You may do it. In this case, the player
The power to the pulse motor 2 that consumes mainly power every time you release your hand
The power supply is cut off to save power and
Operation of the DC power supply unit 23 does not stop every time
When the operating handle is operated again,
There is no need to wait, and the game is highly responsive (see FIGS. 3 and
9). Further, in the above embodiment, the pulse motor is used.
HB type (hybrid type) was used, but VR type
(Variable reluctance type) or (variable reluctance
Service life, torque characteristics, vibration
Meeting various requirements such as motion, noise, heat generation, and power consumption.
it can. The full step angle is required due to the constant speed rotation of the motor.
It is desirable that the degree is 1.8 ° or less. In addition, the above embodiment
Bipolar drive type two-phase motor with excellent overall performance
Uses unipolar drive type 4-phase motor which is excellent in cost and cost
However, the present invention is not limited to this.
For example, a unipolar drive type three-phase
Data may be used. According to the launching apparatus for a pachinko game machine of the present invention,
If this is the case, the pachinko machine
Can be realized, and AC
Driving motor or AC synchronous motor
Hit the game ball without using a reducer compared to the one used
The launching motor that operates the hammer that emits at a specified speed
It can rotate stably at low speed and smoothly.
Gear noise generated by the reducer
Frequency of failures, reduction of installation space for equipment and
Realization of motor vibration and noise suppression for players
be able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an overall configuration of a launching device of a pachinko gaming machine of the present invention. FIG. 2 is a schematic configuration diagram showing a game ball launching mechanism of a launching device according to an embodiment of the present invention. FIG. 3 is a circuit diagram showing a first embodiment of a circuit section of the launching device. FIG. 4 is a longitudinal sectional view showing the pulse motor of FIG. 3 in detail. FIG. 5 is a cross section showing the pulse motor of FIG. 3 in detail. FIG. 6 is a waveform diagram showing an on / off sequence of a transistor of the pulse motor drive circuit of FIG. 3. FIG. 7 is a waveform diagram showing each phase drive current of the pulse motor. FIG. 8 is a first and a third phase after torque cancellation. FIG. 9 is a waveform diagram showing an equivalent current waveform of a driving current. FIG. 9 is a circuit diagram showing a second embodiment of a circuit section of the launching device. FIG. 10 is a waveform diagram showing an on / off sequence of the pulse motor driving circuit in FIG. Waves indicating drive currents of the respective phases of the pulse motor of FIG. [Description of Signs] 1 Game ball launching mechanism 2 Pulse motor 3 Cam 4 Hammer 6 Spring 9 Operating handle 23 DC power supply for motor 24 DC power supply for control circuit 25 Pulse motor drive circuit 26 Oscillator circuit 27 Divider circuit 31 Differentiator circuit

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Koji Noguchi               2-16-13 Hongo, Bunkyo-ku, Tokyo Japan Pal               Smotor Corporation (72) Inventor Atsushi Saito               1-22 Kamotsukicho, Nakamura-ku, Nagoya City, Aichi Prefecture               Location Daiichi Shokai Co., Ltd.

Claims (1)

(57) [Claims] In a launching device for a pachinko game machine having a hammer means for launching a game ball and a launch motor for driving the hammer means, the launch motor is constituted by a pulse motor having a step angle of 1.8 degrees, A pulse generator for generating a pulse signal for stepwise rotating the pulse motor based on an oscillating operation of an oscillator selected from a crystal oscillator and a ceramic oscillator, and based on a pulse signal from the pulse generator. A pulse motor drive circuit for outputting an excitation signal for a predetermined time at predetermined intervals sequentially to each of the plurality of stator coils of the pulse motor, and providing a pulse motor drive circuit for conducting the excitation current. Launcher.