JP3288435B2 - Solenoid drive circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solenoid drive circuit, and more particularly to a solenoid drive circuit suitable for driving a solenoid used as a game ball launch drive source for a game ball launching device of a game machine such as a pachinko machine.

[0002]

2. Description of the Related Art In gaming machines such as pachinko machines, in recent years,
A device incorporating a rotary solenoid as a drive source in a game ball launching device is proposed. Since such a game ball launching device is required to fire a game ball at a predetermined cycle, for example, to fire the game ball about 100 times per minute, a pulse-like shape having a predetermined cycle corresponding to the firing cycle of the game ball is required. Is supplied to the solenoid, that is, the solenoid is supplied intermittently.

Conventionally, a solenoid drive circuit of this type is known from Japanese Patent Application Laid-Open No. Sho 60-41980. The solenoid driving circuit disclosed in Japanese Patent Application Laid-Open No. Sho 60-41980 is intended to secure a hitting force at the start of a hitting ball. The ball was not hit in the middle. As such a solenoid drive circuit, a circuit configured as shown in a circuit diagram of FIG. 16 is usually used.

In FIG. 16, CN3 is a connector having two terminals 1 and 2, and the connector CN3 is connected to a rotary solenoid of a game ball launching device (not shown). The connector CN3 has one terminal 1 connected to a 24 V DC power supply (not shown) via a transistor Q10, which is a switching element, and the other terminal 2 grounded. The transistor Q10 has an emitter-collector interposed between the DC power supply and the terminal 1, a base grounded via a voltage stabilizing capacitor, and a base connected to a power supply (not shown) via a signal line L. Connected.

A control transistor Q9 is connected to the signal line L between the transistor Q10 and the constant voltage circuit. The transistor Q9 has an emitter-collector interposed between the signal line L and the ground, and has a base connected to a control device (not shown) via the transistor Q8 and the diode D12. The transistor Q10 is driven by the output of the control device via the transistor Q8 to turn on and off,
In the ON state, the signal line L is grounded.

In this conventional solenoid drive circuit, the control transistor Q9 turns on and off at the above-mentioned predetermined cycle, and changes the voltage applied to the signal line L, ie, the base of the transistor Q10. Therefore, the transistor Q10 turns on and off corresponding to the transistor Q9,
2, that is, a rectangular pulse-shaped current is supplied to the rotary solenoid. Note that, in FIG. 16, R, D, Z
Symbols such as D are indicated by numbers, and description thereof is omitted.

[0007]

However, in the conventional solenoid drive circuit described above, since the capacitor C15 for stabilizing the voltage is connected to the base of the transistor Q10, the transistor Q9 shifts from on to off. Then, the charge of the signal line L flows into the capacitor C15, and the rise of the base voltage of the transistor Q10 is slow, that is, the rise time to the predetermined potential is increased. As a result, as shown in FIG. 18b, the current supplied to the rotary solenoid also exhibits a slow characteristic at the time of rising, the energizing force of the solenoid is affected, the flying distance of the game ball fluctuates, and the interest of the game is spoiled. It is. In FIG. 18b, the broken line indicates a desired ideal characteristic.

In particular, the rise of the base voltage is greatly affected by the power supply voltage, and the gaming machine is installed on an island facility of a game store where the power supply voltage fluctuates greatly. The solution was strongly demanded.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a solenoid drive circuit capable of rapidly increasing a current supplied to a solenoid and stably driving the solenoid.

[0009]

According to the present invention, a main switching element is provided between a solenoid and a driving DC power supply, and a pulse signal is applied to a control terminal of the main switching element. In a solenoid drive circuit for chopper-driving the solenoid, a signal source connected to a control terminal of the main switching element, for outputting a signal of a constant potential to the control terminal, and a signal source connected to a control terminal of the main switching element. 1 capacitor, and a sub-switching element connected in parallel with the signal source between the control terminal of the main switching element and ground, and intermittently opened and closed according to an input signal to generate a pulse signal at the control terminal. A second capacitor connected to the control terminal of the main switching element on the signal source side of the sub switching element. And wherein the launch quickly the potential of the main switching element for a plurality of pulse signals relating to one operation of the solenoid by the chopper driving.

The solenoid drive circuit according to the present invention is applied to a game machine in which a power supply voltage cannot be changed due to a restriction of a grounding environment or the like, and a main switching device is provided between a game ball launching device of the game machine and a DC power supply. It can be configured in a mode in which an element is provided.

[0011]

In the solenoid drive circuit according to the present invention, electric charges are accumulated in the second capacitor when the sub-switching element is turned off, and this electric charge is released when the sub-switching element changes from off to on, and is output from the signal source. It flows into the first capacitor together with the electric charge. The inflow of the electric charge to the first capacitor is performed gradually with respect to a plurality of pulse signals related to one operation of the solenoid by the chopper drive. For this reason, the potential of the signal line, that is, the potential applied to the control terminal of the first capacitor rises quickly, and the current flowing to the solenoid can also rise quickly, so that the solenoid can respond to the pulse width of the pulse signal. Electricity can be reliably supplied during the period, and proper driving can be performed.

The solenoid drive circuit of the present invention applied to a game machine can suppress the fluctuation of the flight distance of a game ball even when the power supply voltage of the game machine fluctuates, and has an adverse effect such as a voltage fluctuation caused by a grounding environment. To provide appropriate and interesting games.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 15 show an embodiment in which the solenoid drive circuit according to the present invention is applied to a game ball launching device of a game machine, FIG. 1 is a front view of the game machine, FIG. 2 is a rear view of the game machine, 3 is a front view of the gaming machine with the openable panel and the glass storage frame opened, FIGS. 4 to 10 are diagrams showing mechanical configurations of the gaming machine, and FIGS. 11 to 15 are diagrams showing the electrical configuration. is there.

In FIGS. 1, 2 and 3, reference numeral 1 denotes a gaming machine, and 2 denotes a ball rental machine for renting a game ball.
And the ball rental machine 2 are integrally assembled. Ball rental machine 2
Incorporates a ball lending control device 903 (see FIG. 11) and a card reader (not shown), and has a card insertion / ejection
1 and various display lamps 220 and 230 are provided. In the ball lending machine 2, the ball lending control device 903 is connected to the ball discharge control device 902 (see FIG. 11), and the ball lending control device controls the lending control of the game ball based on data magnetically recorded on a pre-bayed card or the like. Then, a game ball is lent out by a ball discharge device described later. Since the ball rental machine 2 is not directly related to the present invention, a detailed description thereof will be omitted below.

In the gaming machine 1, a front frame 5 is attached to a machine frame 4 by a hinge 6.
And a frame 7 (see FIG. 2) is attached to the front frame 5 along the frame. As shown in FIG. 2, a game board 8 is attached to the back of the front frame 5 so that the game board 8 can be replaced as a single unit. The back mechanism 80 including the winning ball processing device 801 and the ball discharging device 804 in the section
0 is provided.

Although detailed description is omitted, the storage tank 80
6 stores the game balls before discharge, the ball discharge device 804 discharges the game balls under the control of the ball discharge control device 902, and the prize ball processing device 801 controls the prize balls that have won the prize port of the official item. Perform control. As shown in FIG. 11, the ball discharge control device 902 is connected to a ball lending control device 903 and a game board control device 901 and these control devices 901 and 903
And exchange data with each other to control the discharge of game balls. The details of these control devices 901, 902, and 903 are described in detail in each of the patent applications filed earlier by the present applicant, and thus the description thereof is omitted.

The game board 8 is provided with a guide rail 3 on the front surface, and a game area is set between the guide rail 3 and a glass plate of a glass storage frame 5D described later. In the game area of the game board 8, a variable display device 8A for performing a variable display game for generating a right of a big hit game (special game) and a variable prize device 8C opened at the time of the special game are provided.
And the like , and a variable display device 8 as an electric accessory.
A winning opening is opened in each of A and the variable winning device 8C.

Although not explicitly shown in the figure, the variable winning device 8C and the like have a driving solenoid connected to the game board control device 901, and are driven and operated by the solenoid. Each of the winning ports communicates with the above-described winning ball processing device 801 via a winning ball guide gutter and a winning ball collecting gutter, and a winning ball sensor for detecting a winning ball is provided in each of the winning ports. The winning ball guide gutter and the winning ball collecting gutter guide the winning ball to the winning ball processing device 801. The winning ball sensor is connected to the game board control device 901 to detect a winning and output a detection signal.

As shown in FIG. 11, the game board control device 901 is connected to a discharge control device 902, and also connected to a speaker SP. The game board control device 901 receives a request data signal from the ball discharge control device 902, and outputs a clock signal and a prize ball data signal to the ball discharge control device 902 according to the request data signal. The detailed configuration of the game area of the game board 8 is described in a patent application or the like previously filed by the present applicant, and a description thereof will be omitted.

The front frame 5 has an opening 5A facing the game board 8, a frame 5B for framing the opening 5A is screwed to the front, and a ramp device 20 is provided above the frame 5B. I have. The edge frame 5B has an opening (not explicitly shown in the figure), and a single-opening glass storage frame 5 that opens and closes the opening.
D is attached to the upper part on the front side by a hinge (not shown). A transparent glass plate (a reference number is omitted in the figure) is attached to the glass storage frame 5D.

The lamp device 20 is a prize ball discharge display lamp 2
1. A lending ball discharge display lamp 22 and a completion lamp 23 are provided, and these lamps 21, 22, and 23 are connected to a ball discharge control device 902. The prize ball discharge display lamp 21 is turned on when a prize ball is discharged, the lending ball discharge display lamp 22 is turned on when a lending ball is discharged, and the completion lamp 23 is turned on when a hit state occurs. Reference numeral 5G denotes a key device provided on the right frame portion of the front frame 5, and the key device 5G locks the front frame 5 to the machine frame 4 and locks the glass storage frame 5D to the edge frame 5B.

An opening / closing panel 9 is attached to the front frame 5 below the glass storage frame 5D so as to be openable and closable by a hinge (not shown), and a pan mounting plate 10A is attached below the opening / closing panel 9. A ball supply tray 9B is formed on the opening / closing panel 9, and the opening / closing panel 9 is formed integrally with the ball supply tray 9B by resin molding or the like. Pan mounting plate 1
At 0A, a saucer 10 for storing game balls overflowing from the ball supply tray 9B is provided on the front surface, an operation handle 10B is provided on the right side of the saucer 10, and a ball feed unit 700 and a launch unit 400 are provided on the back surface. ing. As will be described in detail later, the operation handle 10B, the ball feeding unit 700, and the firing unit 400 constitute a game ball firing device 70.

An operation panel 30 for operating the ball lending machine 2 is formed on the ball supply tray 9B. The operation panel 30 has a conversion button 31 for instructing a conversion to a lending ball, and a command for discharging a card. A return button 32 is provided, and a balance display 33 and a ball lending possible display lamp 34 are provided. As shown in FIG. 11, the balance display 33, the conversion button 31, the return button 32, and the ball lending possible display lamp 34 are connected to the ball lending control device 903, and the balance display 33 based on the output of the ball lending control device 903. Indicates the balance of the inserted card, the ball lending possible display lamp 34 indicates whether the conversion button 31 is valid or invalid, and the conversion button 31 and the return button 32 output an operation signal to the ball lending control device 903. .

As shown in FIG. 3, a frame board 12 is attached to the inside of the frame 7 on the back side of the opening / closing panel 9. The game board 8 described above is placed on the frame board 12, and a firing rail 120 is attached. The end of the firing rail 120 is inclined toward the starting end of the guide rail 3, and the firing rail 120 is attached to the starting end of the guide rail 3 with a space therebetween.
The firing rail 120 guides the game ball fired from the game ball firing device 70 to the game area of the game board 8 described above.

A foul ball collecting gutter 121 is attached to the center of the front side of the frame board 12, and the foul ball collecting gutter 121 is provided with a foul sensor 122 for detecting a foul ball. The foul ball collection gutter 121 is
The lower part communicates with the receiving tray 10, and the upper foul ball collecting port 126 opens between the guide rail 3 and the firing rail 120. The foul ball collection gutter 121 collects the game balls that have been fired from the game ball launch device 400 but have not flowed into the game area, i.e., the foul balls, from the foul ball collection port 126 and guides them to the receiving tray 10. The foul sensor 122 is connected to the ball discharge control device 902, detects a foul ball flowing into the tray 10, and outputs a detection signal. Reference numeral 130 denotes a foul ball regulating projection provided on the guide rail 3, and this projection 130 interferes with a foul ball flowing backward on the guide rail 3 to reduce the force of the foul ball.

As shown in detail in FIG. 4, the ball feeding unit 700 is provided with a shooting ball sensor 701 at the end (left end) of a guiding gutter 705 inclined downward and left in the figure. A ball feed mechanism 706 is provided on the left side. A communication opening 704 is opened from the ball supply tray 9B at the start end (right end) of the guiding gutter 705, and the ball supply tray 9 passes through the communication opening 704.
The game balls flowing in from B are aligned at the top. The shooting sphere sensor 701 is configured by a light transmission type photo switch,
The ball discharge control device 902 is connected. The launching ball sensor 701 detects light by the passing game ball, and detects the game ball by blocking the light by the game ball.

The ball feed mechanism 706 includes a ball control lever 706c and a ball feed solenoid 706a for urging the control lever 706c. Control lever 706c
In the figure, the left end in the figure is rotatably supported by a shaft 706b, the engaging portion 706e is provided at the upper right end, and the housing portion 7 is provided at the lower right end.
06d. When the ball feed solenoid 706a is energized, the regulating lever 706c swings counterclockwise to house the game ball in the housing part 706d, and the ball feed solenoid 7b.
At the time of non-energization of 06a, the ball swings in the clockwise direction in the drawing by its own weight, and the game ball is restrained by the engaging portion 706e and the game ball in the accommodation portion 706d is sent to the firing position of the firing rail 120. The ball feeding solenoid 706a is connected to a firing control drive device 650, which will be described later, and is energized intermittently at a timing equal to the timing at which game balls are fired.

As shown in FIGS. 5 to 8, the operating handle 10B is assembled with a mounting member 601 made of a non-conductive material, a rotating operating member 602, a bearing plate 603, and a handle member 604. It is supported by the received tray mounting plate 10A. The mounting member 601 has a substantially cylindrical shape with an open front, and is fixed to the bracket 605. A plurality of bosses 605a, 605b, 605c, and 605d having a screw hole at the front portion are formed on the mounting member 601. A terminal 610 is attached to one boss 605b by a terminal plate 611. The terminal 610 is connected to a wiring 612 connected to the firing drive control device 650, and a touch plate 604a (described later) of the handle member 604.
Connected to.

As shown in detail in FIG. 7, the bearing plate 603 has a substantially disk shape with an insertion hole 603a formed in the center, and a variable resistor 640 is provided on the back side. The variable resistor 640 has a detection shaft 640a rotatably penetrating through the insertion hole 603a, a nut 613 and a washer 614.
With this, it is fixed to the bearing plate 603. This variable resistor 64
Numeral 0 incorporates a variable resistor whose resistance value changes in accordance with the rotation operation angle of the rotation operation member 602, and this variable resistance is connected to the firing drive control device 650 via a connector CN4 described later.

The bearing board 603 has three shaft portions 603b, 603c, 603d and two support shafts 603e, 603e on its surface.
603f, and further, a hole 603g is formed. On this bearing disc 603, a switch lever 615 for hitting stop operation is swingably supported on one support shaft 603e, and a micro switch 645 is fixed on the other support shaft 603f. The switch lever 615 operably protrudes from the notch 601 f of the mounting member 601 to the outside, and engages with the detector of the microswitch 645 inside the mounting member 601. The microswitch 645 is connected to a connector CN5 described later by wiring (not shown), and is connected to the firing drive control device 650 via the connector CN5. The micro switch 645 is turned on (closes the contactor) by operating the switch lever 615 when the ball is stopped, and outputs a hitting stop signal to the firing drive control device 650. Although the detailed description is omitted, the three shaft portions 603b, 603b
Numerals 03c and 603d are loosely inserted into a slot (described later) of the rotary operation member 602 to regulate the maximum rotation angle of the rotary operation member 602, and a screw for fixing the terminal 610 described above is loosely inserted into the hole 603g.

The rotation operation member 602 is coupled to the detection shaft 640a of the variable resistor 640 so as to be integrally rotatable.
The rotation angle is detected by the variable resistor 640 as a resistance value. A boss 602a protrudes from the center of the front surface of the rotation operation member 602, and a long hole 602b is formed around the boss 602a in correspondence with the shaft portions 603b, 603c, and 603d. The rotary operation member 602 has a torsion spring 616 loosely attached to the outer periphery of the boss 602a.
b, 603c and 603d are loosely inserted, and the maximum rotation angle is regulated. One end of the torsion spring 616 is
The other end is fixed to the mounting member 601 by a screw together with the above-mentioned terminal together with the locking portion close to the base of 02a. Note that reference numeral 602f denotes a locking portion formed on the outer peripheral portion of the rotating operation member 602.
The operation angle of the rotation operation member 602 is operated by attaching a hand to 02f.

The handle member 604 is shown in FIGS.
As shown in FIG. 5, the attachment member 60 has a substantially bowl-like shape with a substantially hemispherical outer surface formed thereon, and has a disk-shaped intermediate member 616 interposed therebetween.
Fixed to 1. A touch switch 604a is formed on the outer peripheral surface of the handle member 604 by vapor deposition of a conductive material or the like.
As shown in FIG. 8, the touch switch 604a is connected to the terminal 610 via a screw or the like. As described later, this touch switch 604a
A change in capacitance due to contact of the player is detected.

The firing unit 400 is shown in FIGS.
As shown in the figure, a rotary solenoid 402 fixed to the front frame 5 via a bracket 401, and a firing punch 403 attached to a drive shaft of the rotary solenoid 402
And The rotary solenoid 402 is connected to a launch control drive unit 650 via a connector CN3 described later, and is supplied with a pulsed DC current from the launch control drive unit 650 to drive the launch punch 403 intermittently at a predetermined cycle. . The firing punch 403 has a rotary solenoid 4 at its base end.
02, which is fixed to the drive shaft and has a spring 4
04 is provided so as to be in contact with the game ball. This launching punch 40
3 fires a game ball at the firing position of the firing rail 126 driven by the rotary solenoid 402.

A box 410 is detachably mounted on the back surface of the bracket 401 by a plurality of fasteners 406, and a firing drive control device 650 is housed in the box 410. As shown in FIG.
The firing drive control device 650 is connected to the above-described ball discharge control device 902, and the ball discharge control device 902 is connected to the ball rental control device 903 and the game board control device 901. Although a detailed description is omitted, the game board control device 901 performs control of an accessory, control of a winning ball, and the like, the ball lending control device 903 performs lending control of a game ball, and the ball discharge control device 9.
02 controls payout of game balls.

As shown in FIGS. 11 to 14, the firing drive control device 650 includes two-terminal connectors CN0, CN1,
It has CN2 and three-terminal connectors CN3 and CN4. The connector CN0 has the terminals 1 and 2 connected to a 24V DC power supply, the connector CN1 has the terminals 1 and 2 connected to the above-mentioned ball feed solenoid, the connector CN2 has the terminals 1 and 2 connected to the rotary solenoid, and the connector CN3 has the terminal 1 connected. , 2,
Reference numeral 3 denotes a variable resistor, terminal CN1 of the connector CN4 is connected to the touch plate, and terminals 2 and 3 are connected to the microswitch.
A fixed resistor is connected between the terminals 1 and 3 and a resistor whose resistance value changes according to the turning angle of the turning operation member 602 is connected between the terminals 1 and 3 to the connector CN3. In the description of the firing drive control circuit 650, R, C, D, Z
A symbol is added to the symbol of D, and the description is omitted as necessary.

As shown in FIG. 12, the connector CN0 is
The terminals 1 and 2 are connected to the input terminals of the diode rectifier circuit 651. The diode rectifier circuit 651 is composed of a well-known full-wave rectifier circuit in which diodes are connected in a bridge form, and one of the output terminals is connected to the stabilized power supply circuit 652, and
The driver circuit 653 for driving the ball feed solenoid 706a (first) and the driver circuit 654 for driving the rotary solenoid 402 (second) (see FIG. 15) are connected in parallel, and the other output terminal is grounded. The diode rectifier circuit 651 rectifies 24 V AC to 24 V DC and supplies the rectified power to the stabilized power supply circuit 652 and the like.

The stabilized power supply circuit 652 has an integrated circuit U3 such as a three-terminal regulator, and has a predetermined potential (for example, 5
V) A constant power supply is generated between the power supply and the ground. The stabilized power supply circuit 652 has an output terminal which is an integrated circuit U for firing interval control.
14 (see FIG. 13), a diode D12 of the second driver circuit 654 and an integrated circuit U7 for PWM control (FIG. 14).
), And a signal of a predetermined potential is applied to these as described later.

The first driver circuit 653 includes a connector C
N1 is connected to terminals 1 and 2; terminal 1 of this connector CN1 is grounded; and terminal 2 is an npn-type transistor (all shown in the circuit diagram of this embodiment are npn-type) transistors Q7.
And a diode D6 for surge killer is connected between the terminals 1 and 2 from the terminal 1 to the terminal 2
The direction toward is set as the forward direction. Transistor Q
7 has a collector connected to the rectifier circuit 651 and an emitter connected to the terminal 2
The base is connected to the rectifier circuit 651 via the diode D2, and the capacitor C1 is connected between the base and the ground.
4 and the collector of the transistor Q6 are connected. The transistor Q7 has an emitter-
The collector is turned on, that is, turned on when the transistor Q6 is turned on.

The transistor Q6 has an emitter grounded, a base connected to the collector of the transistor Q5, and connected to the output terminal of the rectifier circuit 651 together with the collector of the transistor Q5. The transistor Q6 turns on when the transistor Q5 turns off, and turns off when the transistor Q5 turns on. The transistor Q5 has an emitter grounded and a base connected to the terminal Q1 of the integrated circuit U4. The transistor Q5 is turned on and off by inputting a pulse signal having a cycle corresponding to the feeding interval of the game ball from the terminal Q1 of the integrated circuit U4.
When the transistor Q5 is turned on and off, the transistor Q6
Similarly, the transistor Q7 is turned on and off, and an intermittent pulse-like current is supplied to the terminals 1 and 2, that is, the ball feed solenoid 706a.

Further, as shown in FIG.
4 includes a touch input detection circuit 655 and a switch circuit 656.
And connect. The touch input detection circuit 655 has a latch circuit 655a connected to the terminal 1 and connected to the terminal 1. The touch input detection circuit 655 connects the terminal 1 to the power input terminal 2 of the connector CN0 via the capacitor DSP. The latch circuit 655a includes a NOR gate U52 for calculating NOR of two input signals and an AND gate U51 for calculating AND of two inverted input signals. The output terminal of the AND gate U51 is connected to the transistor Q3 of the switch circuit 656. Connected to. Note that 65
7 is a high voltage input protection circuit composed of diodes D3 and D4.

The NOR gate U52 has one input terminal connected to the capacitor C8 via the resistors R9 and R8 and one input terminal connected to the one input terminal of the AND gate U51 via the resistor R22.
And the other input terminal is connected to the output terminal of AND gate U51. The AND gate U51 has one input terminal connected to the terminal Q1 of the integrated circuit U2 via the inverter and the variable resistor VR1 for sensitivity adjustment. In the touch input detection circuit 655a , a pulse signal of a predetermined frequency is input from the integrated circuit U2 to one input terminal of the AND gate U51, and a signal indicating a change in capacitance is input to one input terminal of the NOR gate U52. Outputs a high-potential (high-level) signal when the player makes contact, and outputs a low-potential (low-level) signal when the player does not touch it, in response to a change in capacitance caused by contact with the touch plate of the operation handle 10B described above.

The switch circuit 656 connects the terminal 2 to the transistor Q2 and the constant power supply, and grounds the terminal 3 to ground. The transistor Q2 has a base connected to the terminal 2, a collector connected to the constant power supply and the base of the transistor Q3, and an emitter grounded. The transistor Q3 has a collector connected to the touch input detection circuit 655 and the base of the transistor Q4, and an emitter grounded. Transistor Q4 is connected to a constant power supply and integrated circuit U4 via diode D5 with the collector going to the collector in the forward direction.

The switch circuit 656 turns off the transistor Q3 and outputs the output of the touch input detection circuit 655 when the ball is hit when the terminals 2 and 3 are turned on and off by a switch operation and the terminals 2 and 3 are opened. The signal which is guided to the base of Q4 and becomes low level when the output of the touch input detection circuit 655 is high level is supplied to the terminals CE and CE of the integrated circuit U4 .
Output to Q0 . Further, when the ball is stopped, the conduction between the terminals 2 and 3 is stopped, the transistor Q3 is kept on and the transistor Q4 is turned off, that is, the terminal CE of the integrated circuit U4.
Output a high-level signal from a constant power supply.

In FIG. 13, reference numeral 658 denotes an oscillating circuit. The oscillating circuit 658 has an integrated circuit U1 as a main component, and the output terminal of the integrated circuit U1 has an integrated circuit for frequency division (hereinafter, frequency dividing circuit). (Referred to as a circuit) U2. This oscillation circuit 658 generates a pulse signal of a predetermined frequency,
This pulse signal is output to the integrated circuit U2. Frequency divider U
The output terminal of Q1 is the touch input detection circuit 6 described above.
At 55, another output terminal is connected to the timing matching circuit 659. This frequency dividing circuit U2 frequency-divides the output of the oscillation circuit 658 and outputs a pulse signal of a predetermined frequency.

The timing matching circuit 659 comprises a transistor Q1, diodes D13, D14, D15, a latch circuit 659a and the like, and a terminal R of the integrated circuit U4.
Connect to ES, CK , Q7. This timing matching circuit 659 outputs a signal corresponding to the output signal of the frequency divider U2 according to the timing of the signal input from the integrated circuit U4. The integrated circuit U4 functions as a counter and outputs a predetermined signal to each terminal described above. This integrated circuit (hereinafter referred to as
U4 is connected to terminal Q1 at a rate of 100 per minute.
The counter U4 outputs a signal of about a pulse to drive the ball feeding solenoid.
A signal having a predetermined phase with the same cycle as the terminal Q1 as shown in FIG.

As shown in FIG. 14, the connector CN3 is
Terminal 1 is connected to ground, terminal 2 is connected to operational amplifier U61, and terminal 3 is connected to a constant power supply. As described above, the fixed resistor of the variable resistor 640 is provided between the terminals 1 and 3, and the terminal 2 variably engages with the fixed resistor, and the divided voltage is applied to the terminal 2. appear. The operational amplifier U61 is a PWM
(Pulse width modulation) integrated circuit U7, and the resistance value, that is, the rotation operation member 602 of the operation handle 10B.
And outputs a signal of a potential corresponding to the rotation angle to the integrated circuit U7.

The integrated circuit U7 is connected to a constant power source and is grounded.
60, the output terminal is connected to the stabilized power supply circuit 652 in parallel with the counter U4 and the second driver circuit 654 through the diode D11 in the forward direction toward the output terminal. In the voltage generation circuit 660, the operational amplifier U62 generates a predetermined voltage according to the ratio of the resistors R27 and R28 interposed in series between the constant power supply and the ground. The voltage generated by the voltage generation circuit 660 corresponds to the initial flight distance of the game ball.

The integrated circuit U7, as shown in FIG.
The output terminal is turned on and off with a duty factor corresponding to the potential of the signal input from the operational amplifier U62, and the line connecting the output terminal and the stabilized power supply circuit 652, that is, the input signal of the diode D12 of the second driver circuit 654 is A signal corresponding to FIG. This signal has a higher frequency than the signal generated at the terminal of the integrated circuit U4, as is apparent from FIG.

Also, as shown in FIG.
2 is connected to the second driver circuit 654. The second driver circuit 654 connects the terminal 1 of the connector CN2 to the above-described rectifier circuit 651 via a transistor Q10 as a switching element, grounds the terminal 2 and connects a surge killer diode D8 between these terminals 1 and 2. Dress. The transistor Q10 has an emitter connected to the terminal 1, a collector connected to the rectifier circuit 651, and a base connected to the resistor R1.
9, connected to the stabilized power supply circuit 652 via R30.

The base of the transistor Q10 is grounded via the capacitor C15 and connected to the collector of the transistor Q9. The base of the transistor Q10 is further connected to the stabilized power supply circuit 652 side, specifically, to the connection with the transistor Q9. , A capacitor C between the resistors R19 and R30.
17, and further grounded via a zener diode ZD5 and a diode D7. When the transistor Q10 is turned on, the terminal 1 is connected to a diode.
The rotary solenoid 402 is connected to the rectifier circuit 651 to energize, and the terminal 1 is cut off from the power supply in the off state.

The transistor Q9 has an emitter grounded, a base connected to the collector of the transistor Q8, and a diode rectifier circuit together with the collector of the transistor Q8.
651 . When a high level signal is input to the base of the transistor Q9 (when the transistor Q8 is turned off), the transistor Q9 conducts between the emitter and the collector and the transistor Q1 is turned on.
0, and if the base is at a low potential, the emitter-collector connection is cut off to turn off the transistor Q10.
High level, ie, the transistor Q1
Turn on 0.

The transistor Q8 has an emitter grounded, a base connected to the stabilized power supply circuit 652, the terminal Q6 of the integrated circuit U4, and the diode D12 connected to the integrated circuit U7.
Are connected in parallel via. This transistor Q8
A signal on which the above-described signal is superimposed, that is, the signal shown in FIG. 17C is input to the base, and turns on during a high level period of the signal and turns off during a low level period.

Next, the operation of this embodiment will be described. In the firing drive control device 650 of this embodiment, the integrated circuit U4 causes the terminal Q1 and the terminal Q6 to have a predetermined phase difference based on a signal of a predetermined frequency input from the oscillation circuit 658, and a predetermined frequency, for example, 1 A pulse signal of about 100 pulses per minute (see FIG. 17A ) is generated, and the integrated circuit U7 outputs a signal of a predetermined duty factor (FIG. 17B) in accordance with the turning operation angle of the turning operation member 602 of the operation handle 10B.
Output).

Then, the signal at the terminal Q1 of the integrated circuit U4 is output to a first driver circuit 653, and the first driver circuit 653 responds to the input signal by using a ball feed solenoid 7
06a is energized and driven. That is, the transistor Q
5 turns on during the high level period of the input signal and turns off during the low level period to change the base potential of the transistor Q6. Therefore, the transistor Q6 also turns on and off according to the base potential, changes the base potential of the transistor Q7, and turns on the transistor Q7. , Turn off. Therefore, the ball feeding solenoid 706a is intermittently energized, and sends out game balls one by one to the firing position of the firing rail 126.

The output signal of the terminal Q6 of the counter U4 and the output signal of the integrated circuit U7 are superimposed (AND operation) and output to the second driver circuit 654, and the second driver circuit 654 intermittently responds to the superimposed signal. The rotary solenoid 402 is energized and driven. That is, in the second driver circuit 654, the superimposed signal (see FIG. 17C) is input to the base of the transistor Q8, and the transistor Q8 is turned on intermittently in response to the high level (pulse width) period of the superimposed signal.

Therefore, the base potential of the transistor Q9 changes corresponding to the inverted phase of the superimposed signal, and the transistor Q9 conducts between the emitter and the collector to change the base potential of the transistor Q10. Therefore, the transistor Q10 turns on and off in response to the phase opposite to that of the transistor Q9, that is, in response to the superimposed signal, and supplies a current corresponding to the superimposed signal to the rotary solenoid 402. That is, the transistor Q10 turns on and off with the same cycle as the above-mentioned turning on and off of the transistor Q7 and with a predetermined phase difference.
The launch unit 400 can properly launch the game ball sent from the ball feed mechanism 706 by the rotary solenoid 402.

Then, this firing drive control device 650
The duty factor of the signal output from the integrated circuit U7 to the second driver circuit 654 is changed in accordance with the turning operation angle of the turning operation member 602 of the operation handle 10B.
A drive signal is generated by superimposing the M signal and a signal indicating the firing timing, and the rotary solenoid 402 is energized based on the drive signal, that is, the rotary solenoid 402 is chopper-driven. Therefore, the rotary solenoid 4
02 can be minimized, and the thermal effect on other devices can be reduced.

Here, the firing drive control device 650 sets the base potential of the transistor Q10, which is a switching element, in the second driver circuit 654 to the transistor Q9.
And the potential applied from the stabilized power supply circuit 652 is stably held by the capacitor C15 when the transistor Q9 is off. Therefore, as described in the above-described prior art, when the transistor Q9 shifts from the on state to the off state, charge flows into the transistor C15, and the rise of the base potential of the transistor Q10 becomes slow (see FIG. 18B). Rotary solenoid 40
2 is short of the energizing period, and is liable to cause poor firing and the like. .

However, in the present embodiment, the capacitor C17 is connected to the base of the transistor Q10 on the stabilized power supply circuit 652 side from the connection with the transistor Q9, and the capacitor C17 is connected when the transistor Q9 shifts to the off state. The charge is released and flows into the capacitor C15 and the like. Therefore, the base potential of the transistor Q10 rises quickly, and as shown in FIG. 18A, the rise time of the conduction current is shortened, and an appropriate conduction period of the rotary solenoid 402, that is, a predetermined duty factor can be reliably ensured. Therefore, the game ball can be reliably fired, and occurrence of poor firing can be prevented.

In particular, in the gaming machine 1, fluctuations in the power supply voltage are unavoidable due to restrictions on the installation environment, such as installation in the island facilities of a game arcade, and this voltage fluctuation affects the rise of the base potential of the transistor Q10 described above. Effect. However,
By providing the capacitor C17 as in this embodiment, the influence can be suppressed to a minimum, and the game can be made appropriate and interesting.

In the above-described embodiment, the second driver circuit 65 for driving the rotary solenoid 402 of the gaming machine 1 is used.
Although the present invention is applied to the fourth embodiment, the present invention can be applied to the first driver circuit 653, and can be applied not only to the gaming machine 1 but also to solenoid drive circuits of various devices. In particular, the present invention is effective for a device that performs PWM control in which the energization period has a large effect on the drive characteristics of the solenoid,
An appropriate energization period corresponding to the duty factor can be secured, and the reliability of the control can be significantly improved.

[0062]

As described above, according to the present invention, the solenoid for intermittently energizing the solenoid by turning on and off the switching element by connecting and disconnecting the control terminal of the switching element to and from the signal source by the switch. In the drive circuit, the sub-switching element and the sub-switching element are connected in parallel with the first capacitor for stabilizing the voltage of the control terminal to the main switching element.
When a second capacitor is provided on the signal source side with respect to the switching element , and the control terminal of the main switching element is shifted to a high potential, the charge of the second capacitor is transferred to the second terminal for stabilizing the power supply .
Due to the structure to release the first capacitor, Ji
Multiple related to one operation of solenoid driven by chopper
The potential of the main switching element with respect to the pulse signal of
Stand up crab. For this reason, the potential of the main switching element can be quickly raised, and the energization period to the solenoid can be reliably secured.

According to the present invention, a game ball can be stably used by using it as a circuit for driving a rotary solenoid of a game ball launching device in a game machine such as a pachinko machine in which a power supply voltage is unavoidable due to installation environment restrictions and the like. Can be fired, and can achieve appropriate games and interesting games.

[Brief description of the drawings]

FIG. 1 is a front view of a gaming machine to which an embodiment of the present invention has been applied.

FIG. 2 is a rear view of the gaming machine.

FIG. 3 is a front view showing a state where a part of the gaming machine is opened.

FIG. 4 is an enlarged rear view of a ball feed unit of the gaming machine.

FIG. 5 is a perspective view of an operation handle of the gaming machine.

FIG. 6 is a side view of the operation handle in a mounted state.

FIG. 7 is an exploded perspective view of the operation handle.

FIG. 8 is a sectional view of the operation handle.

FIG. 9 is an exploded perspective view of a launch unit of the gaming machine.

FIG. 10 is a perspective view of the firing unit.

FIG. 11 is a block diagram of an overall control system of the gaming machine.

FIG. 12 is a circuit diagram showing a partial circuit of a launch drive control device of the gaming machine.

FIG. 13 is a circuit diagram showing another partial circuit of the firing drive control device.

FIG. 14 is a circuit diagram showing still another part of the circuit of the firing drive control device.

FIG. 15 is a circuit diagram showing still another part of the circuit of the firing drive control device.

FIG. 16 is a circuit diagram showing a part of a conventional solenoid drive circuit.

FIG. 17 shows signals of the firing drive control device, where a is a pulse signal for firing timing, and b is PWM for flight distance adjustment.
The signal c is a signal input to the switching element.

FIG. 18 shows a current waveform supplied to a solenoid,
Is the present invention, and b is the conventional one.

[Explanation of symbols]

 1 Gaming Machine 400 Launch Unit 402 Rotary Solenoid 650 Launch Drive Control Circuit 652 Stabilized Power Supply Circuit (Signal Source) 653 First Driver Circuit 654 Second Driver Circuit 706a Ball Feed Solenoid Q10 Transistor (Main Switching Element) Q9 Transistor (Sub) Switching element) C15 capacitor (first capacitor) C17 capacitor (second capacitor)

Claims (2)

(57) [Claims] 1. A solenoid drive circuit for interposing a main switching element between a solenoid and a driving DC power supply, and applying a pulse signal to a control terminal of the main switching element to chopper-drive the solenoid. A signal source connected to a control terminal of the element and outputting a signal of a constant potential to the control terminal; a first capacitor connected to a control terminal of the main switching element; and a ground connected to a control terminal of the main switching element. A sub-switching element that is connected in parallel with the signal source and opens and closes intermittently in response to an input signal to generate a pulse signal at the control terminal; A second capacitor connected on the signal source side, and a single operation of the solenoid by the chopper drive Solenoid drive circuit characterized by rapidly raising the potential of the main switching element in response to a plurality of pulse signals related to (1). 2. The solenoid drive circuit according to claim 1, wherein the solenoid switch is applied to a game machine, and the main switching element is interposed between a game ball launch drive solenoid of the game ball launch device and the drive DC power supply. A solenoid drive circuit characterized by being provided.