JP2881337B2 - Pachinko ball delivery device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a pachinko ball delivery device, and more specifically, is provided in a ball passage through which pachinko balls pass in tandem,
The present invention relates to a pachinko ball sending-out device that sends out a predetermined number of pachinko balls based on a winning signal.

[Prior art]

Conventionally, in this type of pachinko ball delivery device, pachinko balls collected in a ball passage and forming a tandem are temporarily stopped by a stopper, and the stopper is opened and closed by a solenoid or the like based on a signal from the control means, and the pachinko ball's own weight is used. Those that send out pachinko balls one by one were used. In such a configuration, the accuracy of ball counting and the speed of sending out are low,
In addition, there is a problem in that if a failure occurs while the stopper or the like is open, the ball is left out. Therefore, in order to solve this, a DC motor is used as a drive source, and a ball cutting disk provided with a cutout on the outer periphery of which a pachinko ball can be fitted is provided so that the outer periphery faces the ball passage, and this ball is provided in accordance with a winning signal. An apparatus has been proposed in which a required number of pachinko balls are sent out by rotating a contained disk at a predetermined angle (Japanese Patent Application Laid-Open No. 63-164977).

[Problems to be solved by the invention]

However, when a DC motor is used, there is a problem that the device configuration becomes larger as compared with a configuration using a conventional stopper. Generally, the pachinko ball delivery device is installed in a narrow place on the back of the pachinko machine, so that the degree of freedom for installing a bulky component such as a DC motor is small. On the other hand, if the DC motor is unnecessarily reduced in size, the torque becomes insufficient and an operation failure is likely to occur. In particular, when starting the rotation of the rotating member and sending out the first pachinko ball, a large torque is required due to static friction and inertia, so if a motor with a small starting torque is used, the rotating member will not rotate. Tends to occur. The pachinko ball delivery device of the present invention has been made to solve the above problems and to reduce the size and improve the reliability of the device. The configuration of the present invention that achieves the above object will be described below.

[Means for Solving the Problems]

In the pachinko ball delivery device of the present invention, a rotating member for passing pachinko balls one by one is provided in a ball passage through which pachinko balls pass in tandem at a position where the outer periphery faces the ball passage. In a pachinko ball delivery device that includes a control unit that drives a rotation mechanism that rotates a member based on an external instruction signal and that sends out a predetermined number of pachinko balls, the rotation mechanism includes a stepping motor as a drive source. And a low-speed exciting means for sequentially exciting the exciting coil of the stepping motor for a predetermined period at a timing lower than the mechanically achievable rotation speed of the rotor at least at the time of starting the stepping motor. .

[Action]

The pachinko ball delivery device of the present invention having the above configuration, a stepping motor as a drive source of the rotation mechanism,
Driven based on an instruction signal from outside by the control means,
Rotating the rotating member. The rotating member is provided at a position where its outer periphery faces the ball passage, and allows the pachinko balls in the ball passage to pass one by one. Therefore, when the stepping motor is rotated by a predetermined amount, a predetermined number of pachinko balls are sent out. Here, the pachinko ball feeder of the present invention sequentially switches the exciting coil of the stepping motor by the low-speed exciting means at a timing slower than the mechanically achievable rotation speed of the rotor at least at the time of starting the stepping motor. Excite. As a result, the rotor is gradually energized and the stepping motor eventually begins to move overcoming static friction and inertia. Once activated, the stepping motor rotates the rotating member under normal control and sends out a predetermined number of pachinko balls. In this pachinko ball feeding apparatus, the control means is provided with interval switching means for switching the interval of ball feeding by a stepping motor in response to a continuous instruction signal in two or more stages, so that a predetermined number of pachinko balls are sent out and the next predetermined time. Controlling the interval between sending out a number of pachinko balls is also effective in terms of balance between supply and discharge of pachinko balls.

【Example】

In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the pachinko ball delivery apparatus of the present invention will be described below. The pachinko ball delivery device according to the embodiment includes an electronic control device for controlling and a delivery mechanism which is a mechanism for actually delivering the pachinko balls. FIG. 1 is an electric circuit diagram of the electronic control unit 60, FIG. 2 is a rear view of a pachinko machine in which the delivery mechanism 20 is used, FIG. 3 is a perspective view showing the appearance of the delivery mechanism 20, and FIG. It is sectional drawing. First, a description will be given of a mounting relationship of the present apparatus on a pachinko machine. As shown in FIG. 2, the pachinko machine includes a machine frame 1 and a front frame 3 attached to the front of the machine frame 1 so as to be openable and closable.
And a game board 5 detachably attached to the back surface of the front frame 3. A mechanism plate 7 on which various mechanisms are mounted is rotatably mounted on the back surface of the game board 5, and the upper portion of the back surface of the mechanism plate 7 is fed from a pachinko ball feeding device (not shown). A premium ball tank 10 for storing pachinko balls is fixed. Below the prize ball tank 10, a lead-out gutter 12 for guiding pachinko balls serving as prize balls in two rows is formed, and a delivery mechanism 20 of the present embodiment is mounted at a lower end thereof. A ball replenishment interlock switch 21 is provided in the middle of the lead-out gutter 12 to detect when the number of pachinko balls operable by the delivery mechanism 20 is not accumulated. Further, a ball-jamming interlock switch 22 for detecting a ball-jamming or the like in the outlet gutter 12 is provided at the end of the outlet gutter 12 and immediately before the delivery mechanism 20. The delivery mechanism 20 delivers a prize ball only when the interlock switch 21 is turned off. The delivery mechanism 20 is for delivering a predetermined number of prize balls according to the winning balls. The winning ball is the winning ball outgoing path
Detected by a detector 24 provided in 23. In the present embodiment, the winning balls are classified into three according to the type of the winning accessory and the like, and three sets of detectors 24 are provided. This is called a first, second, and third start switch (24a, b, c) in the sense of a signal for starting the delivery of the pachinko ball. Below the delivery mechanism 20, there is provided a discharge gutter 26 for guiding the pachinko balls counted and released by the delivery mechanism 20 to an upper plate and a lower plate provided on the front surface of the front frame 3. In the vicinity of the connection between the discharge gutter 26 and the upper and lower plates,
An upper / lower plate interlock switch 27 for detecting that the pachinko balls are full on the upper plate and the lower plate is provided. Next, the configuration of the delivery mechanism 20 will be described. As shown in FIGS. 2 and 3, the feed-out mechanism 20 has a hollow rectangular cylindrical case 29 that is open vertically and has two rows at a position corresponding to the lower end of the lead-out gutter 12 therein. Ball passage 31, 32
Is provided. Further, inside the case 29, a horizontal shaft 35 whose both ends are supported on the wall surface of the case 29 is provided.
The two ball cutting disks 41 and 42 are integrated by the connecting cylinder 43 and the horizontal axis 3
It is rotatably supported with respect to 5. Each beading disc 41, 42 has a semicircular notch P at 13 places on the outer circumference.
a two sprockets 44 having a
4 comprises a bracket 45 fixed to both sides. As shown in FIG. 4, the ball cutting disks 41 and 42 are provided at positions where the outer periphery faces the insides of the ball passages 31 and 32. Also, since the diameter of the notch Pa provided on the outer periphery of the sprocket 44 is almost the same as that of the pachinko balls, when the ball cutting disks 41 and 42 rotate, the pachinko balls B in the ball passages 31 and 32 become one by one. , To the discharge gutter 26. In addition, the ball cutting disks 41 and 42 are exactly 1/2 of the pitch of the notch Pa.
The pachinko balls are sent out alternately by being fixed to each other at a rotational position shifted by only one. A worm gear 46 is fixed to the outer periphery of the connecting cylinder portion 43 connecting the two sets of ball cutting disks 41 and 42. A worm 47 that drives the worm gear 46 is meshed with the worm gear 46. One end of the shaft 49 to which the worm 47 is attached is rotatably supported by the outer wall of the case 29, and the other end is fixed to the rotating shaft 51 of the stepping motor 50. The stepping motor 50 is fixed to the outer wall of the case 29. When the stepping motor 50 rotates, the worm gear 46 rotates through the rotation of the worm 47 directly connected to the rotation shaft 51, and the ball cutting disks 41 and 42 also rotate. In order to detect the state of rotation of the ball cutting disks 41 and 42, a transmission type photodetector 55 using infrared light is provided at a position sandwiching one sprocket 44 of the ball cutting disk 42. The transmission-type photodetector 55 is provided by the notch Pa of the sprocket 44 every time light is transmitted or blocked.
That is, each time one pachinko ball is sent out, a pulse signal is sent out. Next, the configuration and operation of the electronic control unit 60 will be described. As shown in FIG. 1, an electronic control unit 60 that controls the pachinko ball delivery device includes an arithmetic logic unit, a ROM, a RA, and the like.
A one-chip microcomputer with a built-in M
Power unit 63, interface unit 6
5. It is composed of a setting section 67 and the like. The power supply unit 63 is a circuit that generates three types of power supplies VE, VD, and VCC by inputting a 24-volt alternating current from the outside. Power supply 63
Is a diode stack 71 that generates a power supply VE by full-wave rectification of a 24 volt AC, electrolytic capacitors C1 and C2 and a diode D1 that further smoothes this to generate a DC high-voltage power supply VD, and a DC high-voltage power supply. It comprises a regulator 73 for generating a stabilized 5 volt power supply VCC from VD. The interface unit 65 is a circuit that interfaces the input / output port Pi of the MPU 61 with an external detector, switch, lamp, motor, and the like. The level signal input units 81 to 85,
It comprises output sections 87 and 88, an integration input section 90, driver ICs 92 and 93, and the like. The level signal input sections 81 to 85 are connected to the interlock switches 27, 21, 22 and the first to third start switches 24.
a, 24b, and 24c are connected via a connector CN. The level signal input units 81 to 85 convert the voltage level of a signal of a switch or the like supplied with 24 VDC to a 5 VDC signal for the MPU 61, and connect an R-signal before and after the level converting transistor Tr1. A simple C-type integrator is provided to eliminate chattering of switches and the like. Power supply
The integrator on the VD side is composed of resistors R1, R2 and a capacitor C4, while the integrator on the stabilized power supply VCC side is composed of resistors R3 (for pull-up), R4, R5 and a capacitor C5. ing. Note that a diode D4 (indicated by a dotted line in FIG. 1) is provided in the level signal input sections 83 to 85 in parallel with the resistor R4. The diode D4 hastens the charging of the capacitor C5 to shorten the rise time when the start switch 24 is turned off. The output units 87 and 88 are interposed between the MPU 61 and the light emitting diode LD1 and the photocoupler PC1, and are connected to the transistor Tr2 and the bias resistors R11 and 12 connected to its base and the current limiter connected to the collector. And a resistor R13. When the ports P31 and P30 of the MPU 61 become high level, the transistor Tr2 is turned on, and the light emitting diode LD1 and the light emitting diode in the photocoupler PC1 are turned on.
The light emitting diode LD1 is
This indicates that there is a winning ball for which the discharge of the premium ball has not been completed. The transistor on the output side of the photocoupler PC1 is connected to a control device (not shown) for a motor for firing balls through a connector CN. The ball firing motor can be driven only when the light emitting diode of the photocoupler PC1 is turned on and the transistor is conducting. The integration input section 90 is connected to a transmission-type photodetector 55 provided on the outer periphery of the sprocket 44 of the ball cutting disk 42 of the ball feed mechanism 20. The integration input unit 90 converts the on / off of the output side transistor of the transmission type photodetector 55 into the signal level of the stabilized power supply VCC, and removes and takes in the noise. The resistor R23 (for pull-up) , R24, R25 and a capacitor C25. The driver IC 92 is a sink-type integrated circuit that draws current for driving a lamp or a solenoid through the resistors R31 to R34.When the ports P14 to P17 of the MPU 61 become high level, the output is made low level, and the connection is made. The current from the power supply VE is supplied to the driven lamps and the like to drive them. The light emitting diode LD2 is turned on when the lower plate is full, the lamp LP1 is turned on when the lower plate is stopped, and the lamp LP2 is turned on when a prize ball is paid out. In addition, the solenoid SR1 is driven when the ball delivery mechanism 20 for delivering prize balls is inoperable due to a shortage of balls or the like. The solenoid SR1 is provided in a stopper (not shown) provided inside the winning ball derivation path 23 and for preventing a winning ball from passing through the start switch 24. The driver IC 93 is the same as the driver IC 92, and is connected to the excitation coils ML1 and ML2 of the stepping motor 50. Note that the exciting coils ML1,
ML2 is a bifilar type as shown in the figure,
A power supply VE is connected to both centers via a resistor R40. The resistor R40 is used to make the holding torques of the one-phase excitation and the two-phase excitation in the 1-2-phase excitation substantially equal to each other so as to smooth the rotation of the stepping motor 50. The setting unit 67 sets the voltage level of the ports P20 to P23 to which the pull-up resistors R41 to R44 are connected.
This circuit is connected to P34 to P37, and includes a setter 94a, 94b, 94c, 96 that is set according to the state of the internal diode array DA, and a switch Sw1 for manually executing a prize ball payout. The MPU 61 connects to port P34 at predetermined intervals.
Through 37 to the low level sequentially, and the port P2 at that time
By reading the statuses 0 to 23, the set values of the setting devices 94a to 94c and 96 can be read. Bits to which the diode array DA is connected have a value of zero, and bits that are not connected have a value of one. The setting devices 94a to 94c correspond to the number of prize balls to be paid out by prize balls passing through the start switches 24a to 24c, respectively. For example, when the setting device 94a is "1101", the first start switch When the prize ball passes on 24a, the number of prize balls is set to 13. The first bit of the setting device 96 connected to the port P20 specifies the payout timing of the prize sphere. When the diode array DA is connected and the value is set to 0, the prize for consecutive prize balls is set. This is a setting to delay the timing of dispensing a plurality of sets of balls. The manner in which the premium balls are paid out for consecutive winning balls will be described later. The processing executed by the electronic control unit 60 having the above configuration will be described with reference to the flowcharts of FIGS. FIG. 5 shows a start signal input interrupt processing routine which is started each time a pachinko ball B passes through the start switches 24a to 24c and a start signal is input from the start switch 24. . When a start signal is input, first, the number of the port to which the start signal is input is read (step 100), and a process of incrementing a variable N as a winning ball counter by a value of 1 is performed (step 110). Subsequently, the port P15 is switched to a high level, and the lamp LP2 indicating a winning is lit for a predetermined time via the driver IC 92 (step 120).
Start switch 24 from the port number read in 100
Then, a process of setting a predetermined number of prize balls to the variable Si according to the start switch 24 is performed (step 130). In this embodiment, the start switch 24
Are provided, and three types of prize balls are prepared according to the winning prize. Thereafter, the variable i indicating the execution timing of this interrupt processing routine is incremented by 1 (step 140), the process exits to "RTN", and this interrupt processing routine ends. FIG. 6 is a flowchart showing an interlock signal interrupt processing routine.
The interlock signal from one of the interlock switches 21, 22, 27 is activated each time the interlock signal changes to ON or OFF. When the interrupt processing routine is started, it is first determined whether or not the interlock signal has just been turned on (step 200), and the change in the interlock signal is a change from the off state to the on state. When it is determined that the flag is set to 1, the flag FIL indicating the interlock state is set (step 210). Subsequently, it is determined whether or not the interlock signal indicates that the upper plate and the lower plate are full (step 22).
0) If both plates are full, the firing control signal for controlling the ball firing motor is turned off (step 230),
Thereafter, the process exits to "RTN" and ends the interrupt processing routine. On the other hand, when the change of the interlock signal is from the on state to the off state (step 200), it is determined whether or not all the interlock signals have been switched off by the change (step 240). If all the interlock signals are off, the flag FIL is reset to 0 (step 250), the firing control signal is turned on (step 260), and the interrupt processing routine is set to "RTN". And exit. In this case, the pachinko ball can be fired. If at least one of the interlock signals is not turned off (step 240), it is determined whether the upper and lower interlock signals are turned off (step 27).
0) If the signal is off, only the process of switching on the firing control signal (step 260) while keeping the value of the flag FIL unchanged. On the other hand, if the upper and lower tray interlock signal is not turned off, nothing is performed, the process directly goes to "RTN", and the interrupt processing routine is terminated. A pachinko ball delivery control routine shown in FIG. 7 is executed in parallel with the processing of these interrupt processing routines (FIGS. 5 and 6). This processing routine sets the flag FIL
Is determined to be a value 0 and whether the variable N indicating that there is an unprocessed winning ball is not a value 0 is repeated (steps 300 and 310), and FIL = 0 and N ≠ 0 When it does, the processing from step 320 on is started. That is,
In the interrupt routine shown in FIG. 6, when the flag FIL is set to a value of 0 due to a change in the interlock signal, and when a new winning ball is counted in the interrupt routine shown in FIG. The control to send out is started. In step 320, a low-frequency pulse is output to the exciting coils ML1 and ML2 of the stepping motor 50 via the driver IC 93, and as shown in FIG.
Perform the process of starting 50. This stepper motor 50
Is driven by 1-2 phase excitation as shown in FIG. 8 (B), but at the time of startup, is driven at a frequency considerably lower than the self-start frequency of the rotor. Stepping motor
When starting from rest, the 50 rotor must begin to move against the large static friction and moment of inertia experienced by the worm gear 46, worm 47, and ball cutting disks 41, 42 coupled to the rotor. . However, the rotor itself is free to rotate small by excitation because of the play of gears and the like. Therefore, the rotor rotated by the excitation of a certain phase once returns to the original rotation position while the ball cutting disks 41 and 42 are stationary. Also during this time, the phase of the excitation pulse applied to the excitation coil advances one after another, and the rotor repeats small rotation and swingback while slipping as seen from the excitation pulse. Then, it gradually starts to vibrate, and eventually starts moving the ball cutting disks 41 and 42 against the large static friction and the moment of inertia. This situation is similar to a locomotive with a small driving force repeatedly accelerating and stopping, and a large number of trains are finally launched with shaking off static friction and inertia. When the ball discs 41 and 42 rotate and release one pachinko ball fitted into the notch Pa into the discharge gutter 26, the ball discs
The transmission type photodetector 55 provided on the sprocket 44 of 42,
As shown in FIG. 8A, one pulse (hereinafter, referred to as a photo interrupt signal) is output. Wait until the photo interrupt signal is detected (step in FIG. 7).
330) When the photo interrupt signal from the photodetector 55 is detected, a value 1 is set to a counter C for counting the number of pachinko balls sent out (step 340). Subsequently, the excitation coils ML1 and ML2 of the stepping motor 50
The excitation pulse of the normal frequency is output to (step 350),
The determination as to whether or not a photo interrupt signal is input from the photodetector 55 is repeated (step 360). Once started to move, the discs 41 and 42 rotate sufficiently even with a small torque due to small dynamic friction and inertia. Therefore, the ball cutting disk 4
The pachinko balls 1 and 42 alternately send pachinko balls, and in response to this, a photo interrupt signal is output from the light detection switch 55 one after another. Each time the photo interrupt signal is input (step 360), the counter C is incremented by 1 (step 370), and the value of the counter C is set to the prize ball set in the interrupt routine shown in FIG. The process waits until the value (Si-1) is obtained by subtracting the value 1 from the variable Si indicating the number (step 380). The stepping motor 50 is driven by a normal pulse signal until C = Si-1, that is, the last one of the number of prize balls. When the last one is reached (step 380), the stepping motor 50 is again driven by the low frequency pulse. Drive 50 (step 39
0). As a result, as shown in FIG. 8 (A), the last one pachinko ball is sent out with some time, and when this is detected by the photo interrupt signal of the photodetector 55 (step 400), the stepping is performed. Stop the pulse signal to the motor 50 and stop the stepping motor 50 (step
410). In the present embodiment, only the last one is driven by the low frequency pulse. However, when the number of the remaining pachinko balls becomes about three, the pachinko ball is switched to the low frequency pulse to further improve the stopping accuracy. good. Since the sending of the premium ball to one winning ball is completed by the above processing, the variable N indicating the number of unprocessed winning balls is decremented by 1 (step 42).
0) Then, it is determined whether the variable N is not equal to the value 0 (step 430). If the variable N is not 0, then the setting unit 9
It is determined whether or not the first bit of 6 is 0 (step 440). If the first bit of the setting device 96 is 0, the process waits for the time T1 (so-called soft timer process)
(Step 450). If the value is not 0, the time T2 (T1
> T2) and then wait (step 46)
0), and return to step 300 of this routine. As a result, when the first bit of the setting unit 96 has a value of 0, as shown in FIG. 8A, there is a continuous winning ball (N ≠ 0), and it is necessary to continuously pay out the premium ball. Even if there is, a process of sending out the next plurality of pachinko balls will be executed after waiting for a predetermined time T1 instead of paying out the prize balls continuously. If the first bit is not the value 0, the payout of the prize ball for the consecutive winning balls is performed after waiting for a time T2 shorter than the time T1. According to the pachinko ball feeder of the present embodiment described above, the excitation applied to the excitation coils ML1 and ML2 when the stepping motor 50 is started and stopped while using the small stepping motor 50 to reduce the size of the device. By setting the frequency of the pulse sufficiently lower than the self-starting frequency, the stepping motor 50 can be reliably rotated and stopped using the vibration of the rotor. Therefore, it is possible to reliably feed the pachinko balls. Further, since the size of the apparatus can be reduced, it is possible to easily mount the apparatus in a narrow space behind the pachinko machine and to improve the degree of freedom in design. In the present embodiment, the size of the motor could be reduced to about 1/2 of the conventional one in volume ratio. Further, in the pachinko ball sending-out device of the present embodiment, the timing of paying out premium balls with respect to successive winning balls,
Switching can be made in two stages by setting of the setting device 96. A supply device for supplying pachinko balls is connected to the pachinko machine, but an optimum value may be selected according to the capacity of the ball supply device. As a result, the capacity of the supply device can be given a margin. Also, the optimal timing of paying out prize balls differs depending on the type of the accessory and the land pattern. Therefore, when the winning ball continues, if the player who appeals the prize ball without interruption is appealed to the player, the first bit of the setter 96 is set to the value 1 and the payout interval is set to a short time T2, while On a platform that appeals to a player who pays out a ball for a relatively long period, a long payout interval T1 may be used as in the embodiment. In this embodiment, the driving source is a stepping motor 50.
However, unlike a DC motor, a stepping motor is unlikely to cause a failure such as continuing to rotate due to a short circuit or the like, and is highly reliable as a pachinko ball delivery device. In the present embodiment, the stepping motor 50 is driven by a low-frequency pulse at the start and end of pachinko ball delivery, but when the stepping motor 50 is stopped due to a foreign object biting during rotation or the like. Can also be driven by a low-frequency pulse and restarted. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments at all.
A configuration using a multi-phase or higher-phase stepping motor, a configuration using a unifier type stepping motor,
Alternatively, the gist of the present invention includes a configuration in which a rotating member is provided in a direction perpendicular to a ball passage and a hole having a hole through which a pachinko ball can pass, a configuration used in a device for counting the number of pachinko balls such as a pachinko ball lending device, and the like. Of course, the present invention can be implemented in various modes without departing from the scope of the present invention.

【The invention's effect】

As described above in detail, according to the pachinko ball feeder of the present invention, at least at the time of starting the stepping motor, the exciting coil of the stepping motor is slower than the mechanically possible rotation speed of the rotor by the low-speed exciting means. At the timing, the magnets are sequentially excited for a predetermined period. As a result, the rotor is gradually energized, and the stepping motor reliably starts overcoming the static friction and inertia. The stepping motor rotates the rotating member and surely sends out pachinko balls. Therefore, the pachinko ball sending-out device of the present invention has an excellent effect of achieving both miniaturization and improvement in the accuracy of sending out pachinko balls.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a configuration of an electronic control unit 60 of a pachinko ball feeding device as one embodiment of the present invention, and FIG. 2 is a back view of a pachinko table to which a feeding mechanism 20 of the pachinko ball feeding device of the embodiment is attached. FIG. 3 is a perspective view showing the structure of the delivery mechanism 20, FIG. 4 is a sectional view of the same, FIG. 5 is a flowchart showing a start signal input interrupt processing routine executed by the electronic control unit 60, and FIG. 7 is a flowchart showing an interlock signal interruption processing routine, FIG. 7 is a flowchart showing a pachinko ball delivery control routine, FIG. 8 (A) is a timing chart showing operation timings of respective parts of the pachinko ball delivery device, FIG. 6B is a timing chart illustrating an excitation pulse of the stepping motor 50. DESCRIPTION OF SYMBOLS 1 ... Machine frame, 3 ... Front frame, 5 ... Game board 7 ... Mechanical plate, 10 ... Premium ball tank 12 ... Outlet gutter, 20 ... Delivery mechanism 21 ... Ball supply interlock switch 22 ... … Clogging interlock switch 24a to 24c… First to third start switch 26… Discharge gutter 27… Top and bottom plate interlock switch 31… Ball passage 41,42… Ball cutting disk 44… Sprocket 50… … Stepping motor 55 …… Transmission type photodetector, 60 …… Electronic control device 61 …… MPU 94a to 94c, 96 …… Setting device ML1, ML2 …… Exciting coil Pa …… Notch, SR1 …… Solenoid

Claims (2)

(57) [Claims] 1. A rotating member for passing pachinko balls one by one is provided in a ball passage through which pachinko balls pass in a cascade, at a position where the outer periphery faces the ball passage, and a rotating member for rotating the rotating member is provided. A pachinko ball feeding device including a control unit that drives a mechanism based on an instruction signal from the outside and sends out a predetermined number of pachinko balls, wherein the rotating mechanism uses a stepping motor as a driving source, A pachinko ball feeder characterized by comprising low-speed excitation means for sequentially exciting the excitation coil of the stepping motor at a timing lower than the mechanically possible rotation speed of the rotor for a predetermined period at least when the motor is started. . 2. The pachinko ball feeding device according to claim 1, wherein the control means includes an interval switching means for switching the interval of ball feeding by the stepping motor with respect to a continuous winning signal in two or more stages. Pachinko ball delivery device.