JPH0631033A - Solenoid driving circuit - Google Patents

Abstract

PURPOSE:To prevent generation of inconvenience such as insufficiency, etc., of energizing force of a solenoid by starting quickly an electric conduction current and securing surely an electric conduction time of the solenoid, in the case of chopper-driving the solenoid. CONSTITUTION:In the solenoid driving circuit for applying a pulse signal to a control terminal of a main switching element provided between a solenoid connected to a terminal 1 and a driving DC power source and chopper-driving the solenoid, this circuit is provided with a signal source which is connected to a control terminal of a switching element Q10, and outputs a signal of a prescribed potential to this control terminal, a first capacitor C15 connected to the control terminal of the main switching element Q10, a sub-switching element Q9 which is connected to the control terminal of the main switching element Q10 in parallel to the signal source between the main switching element and a ground, opens and closes intermittently in accordance with an input signal and allows the control terminal to appear the pulse signal, and a second capacitor C17 connected to the main switching element Q10 on the signal source side from the sub-switching element Q9.

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 drive source for launching a game ball in a game ball launching device of a game machine such as a pachinko machine.

[0002]

2. Description of the Related Art In game machines such as pachinko machines, in recent years,
It is proposed to incorporate a rotary solenoid as a drive source into a game ball launching device. Such a game ball launching device is required to shoot a game ball at a predetermined cycle, for example, to shoot the game ball about 100 times per minute, and thus a pulse shape having a predetermined cycle corresponding to the game ball shooting cycle. Is applied to the solenoid, that is, the solenoid is applied intermittently.

Conventionally, as this type of solenoid drive circuit, the one described in Japanese Patent Application Laid-Open No. 60-41980 is known. The solenoid driving circuit disclosed in Japanese Patent Laid-Open No. 60-41980 is intended to secure a hitting force at the time of starting a hitting ball. The ball is not hit from the middle. As such a solenoid drive circuit, one having a configuration as shown in the 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). In this connector CN3, one terminal 1 is connected to a 24V DC power supply (not shown) via a transistor Q10 which is a switching element, and the other terminal 2 is grounded. The transistor Q10 has an emitter-collector interposed between the DC power supply and the terminal 1, a base grounded via a capacitor for voltage stabilization, 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 a base connected to a control device (not shown) via the transistor Q8 and the diode D12. The transistor Q10 is turned on and off by being driven by the output of the controller through the transistor Q8,
The signal line L is grounded in the ON state.

In this conventional solenoid drive circuit, the control transistor Q9 is turned on and off at the above-described predetermined period to change the voltage applied to the signal line L, that is, the base of the transistor Q10. Therefore, the transistor Q10 is turned on and off corresponding to the transistor Q9, and the terminal 1,
2, that is, a rectangular pulse current is applied to the rotary solenoid. In FIG. 16, resistors, diodes, zener diodes, etc. are R, D, and Z, respectively.
Symbols such as D are represented by adding numbers, and description thereof is omitted.

[0007]

However, in the above-mentioned conventional solenoid drive circuit, since the voltage stabilizing capacitor C15 is connected to the base of the transistor Q10, the transistor Q9 shifts from ON to OFF. Then, the electric charge of the signal line L flows into the capacitor C15, and the rise of the base voltage of the transistor Q10 becomes slow, that is, the rise time to the predetermined potential becomes long. 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 biasing force of the solenoid is affected, the flight distance of the game ball fluctuates, and the interest of the game is impaired. Be done. Note that, in FIG. 18b, the broken line indicates the desired ideal characteristic.

In particular, the rise of the above-mentioned base voltage is greatly affected by the power supply voltage, and since the gaming machine is installed in the island facility of a game shop where the fluctuation of the power supply voltage is large, the above-mentioned problem is also remarkable. The solution was strongly demanded.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a solenoid drive circuit capable of quickly raising a current supplied to a solenoid and stably driving the solenoid.

[0009]

In order to achieve the above object, the present invention provides a main switching element between a solenoid and a driving DC power source, and applies a pulse signal to a control terminal of the main switching element. A solenoid drive circuit for chopper-driving the solenoid, a signal source connected to a control terminal of the switching element and outputting a signal of a constant potential to the control terminal, and a first connected to a control terminal of the main switching element. A sub-switching element that is connected in parallel with the signal source between the control terminal of the main switching element and the ground and that opens and closes intermittently according to an input signal to cause a pulse signal to appear at the control terminal. A second capacitor connected to the control terminal of the main switching element on the signal source side with respect to the sub switching element is provided.

The solenoid drive circuit of the present invention is applied to a gaming machine in which fluctuations in the power supply voltage are unavoidable due to restrictions on the grounding environment, etc., and main switching is performed between the game ball launching device of the gaming machine and the DC power supply. It can be configured such that an element is interposed.

[0011]

In the solenoid drive circuit of the present invention, electric charge is accumulated in the second capacitor when the sub switching element is turned off, and the electric charge is released when the sub switching element is turned on and output from the signal source. It flows into the first capacitor together with the charge. Therefore, the potential of the signal line, that is, the potential applied to the control terminal of the first capacitor can be quickly raised, and the energizing current to the solenoid can be quickly raised, and the solenoid can be adapted to the pulse width of the pulse signal. It can be energized reliably during the period and can be driven properly.

The solenoid drive circuit of the present invention applied to a gaming machine can suppress the variation of the flight distance of the game ball even when the power source voltage of the gaming machine fluctuates, and adversely affect the voltage variation due to the ground environment. It is possible to provide proper and entertaining games by eliminating

[0013]

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

1, 2 and 3, 1 is a game machine, 2 is a ball lending machine for renting game balls, and these game machines 1
And the ball lending machine 2 are integrally assembled. Ball rental machine 2
Includes a ball lending control device 903 (see FIG. 11) and a card reader (not shown), and a card insertion / ejection port 21 on the front side.
1 and various display lamps 220 and 230 are provided. In this ball lending machine 2, the ball lending control device 903 is connected to the ball ejection control device 902 (see FIG. 11), and the ball lending control device controls the lending of game balls based on the data magnetically recorded on a pre-baid card or the like. Go and rent a game ball by the ball discharge device described later. Since the ball lending machine 2 is not directly related to the present invention, detailed description thereof will be omitted below.

In the gaming machine 1, the front frame 5 is hinged to the machine frame 4.
A frame 7 (see FIG. 2) is attached to the front frame 5 along the frame so that the frame 7 can be opened and closed in a single-opening manner. As shown in FIG. 2, on the back side of the front frame 5, the game board 8 is attached to the inside of the frame 7 so that the game board 8 can be exchanged by itself, and the storage tank 806 is provided at the center through the frame 7. Back mechanism 80 including a winning ball processing device 801 and a ball discharging device 804 in its part
0 is provided.

A detailed description is omitted, but the storage tank 80
6 stores the game balls before discharging, the ball discharging device 804 discharges the game balls under the control of the ball discharging control device 902, and the winning ball processing device 801 detects the winning balls that have won the winning holes of the accessory or the like. Take control. As shown in FIG. 11, the ball discharge control device 902 is connected to the ball lending control device 903 and the game board control device 901, and these control devices 901 and 903 are connected.
Exchanging data with each other and controlling 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 previously filed by the present applicant, and the description thereof will be omitted.

A guide rail 3 is provided on the front surface of the game board 8, and this guide rail 3 and a glass storage frame 5D described later.
A game area is set between the glass plate and the glass plate. Then, in the game area of the game board 8, a variable display device 8A for playing a variable display game of the right occurrence of a big hit game (special game), a variable winning device 8C opened during the special game, and the like are installed.
The winning holes are opened in each of the electric accessory 8B and the variable winning device 8C.

Although not explicitly shown in the figure, the variable winning device 8C and the like has a driving solenoid connected to the game board control device 901 and is driven by this solenoid to operate. In addition, each of the winning openings communicates with the above-described winning ball processing device 801 through the winning ball guide trough and the winning ball collecting trough, and these winning openings are provided with winning ball sensors for detecting the winning balls. The winning ball guide gutter and the winning ball gathering gutter guide the winning balls to the winning ball processing device 801, and the winning ball sensor is connected to the game board control device 901 to detect the winning and output a detection signal.

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

The front frame 5 is formed with an opening 5A facing the game board 8, an edge frame 5B for edging the opening 5A is screwed to the front part, and a lamp device 20 is provided above the edge frame 5B. There is. The edge frame 5B has an opening (not shown in the drawing), and is a single-opening type glass storage frame 5 that opens and closes the opening.
D is attached to the front upper part by a hinge (not shown). A transparent glass plate (reference numeral 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 rental ball discharge display lamp 22 and a completion lamp 23, which are connected to the ball discharge control device 902. The prize ball discharge display lamp 21 is lit when the prize ball is discharged, the loan ball discharge display lamp 22 is lit when the loan ball is discharged, and the completion lamp 23 is lit when the hit state occurs. Note that 5G is a key device provided in the right frame portion of the front frame 5, and the key device 5G locks the machine frame 4 of the front frame 5 and the edge frame 5B of the glass storage frame 5D.

An opening / closing panel 9 is attached to the front frame 5 below the glass housing frame 5D so as to be openable / closable by a hinge (not shown), and a saucer mounting plate 10A is attached below the opening / closing panel 9. A ball supply tray 9B is formed on the open / close panel 9, and the open / close panel 9 is formed integrally with the ball supply tray 9B by resin molding or the like. Saucer mounting plate 1
In 0A, a receiving tray 10 for storing game balls that have overflowed in the ball feeding tray 9B is provided on the front surface, an operation handle 10B is provided on the right side of the receiving tray 10, and a ball feeding unit 700 and a launching unit 400 are provided on the back surface. ing. As will be described later in detail, the operation handle 10B, the ball feeding unit 700 and the launching unit 400 constitute the game ball launching 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 converting a rental ball and a command for ejecting a card. A return button 32 is provided, and a balance indicator 33 and a ball lending indicator lamp 34 are also provided. As shown in FIG. 11, the balance indicator 33, the conversion button 31, the return button 32, and the ball lending possible indicator lamp 34 are connected to the ball lending controller 903, and the balance indicator 33 is output based on the output of the ball lending controller 903. Indicates the balance of the inserted card, the ball lending indicator 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 controller 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 installed on the frame board 12, and the launch rail 120 is also installed. The firing rail 120 is inclined at its terminal end toward the starting end of the guide rail 3 and is mounted at a distance from the starting end of the guide rail 3.
The launch rail 120 guides the game ball launched from the game ball launching device 70 to the game area of the game board 8 described above.

A foul ball collection gutter 121 is attached to the center of the front side of the frame board 12, and a foul sensor 122 for detecting foul balls is provided on the foul ball collection gutter 121. The foul ball collection gutter 121 is
The lower part communicates with the saucer 10, and the foul ball recovery port 126 on the upper part opens between the guide rail 3 and the launch rail 120. The foul ball collection gutter 121 collects the game balls, which have been launched from the game ball launching device 400, but did not flow into the game area, that is, the foul balls, from the foul ball collection port 126 and guides them to the tray 10. The foul sensor 122 is connected to the ball ejection control device 902, detects a foul ball flowing into the tray 10 and outputs a detection signal. Reference numeral 130 denotes a foul ball restricting protrusion provided on the guide rail 3, and the protrusion 130 interferes with a foul ball flowing back through the guide rail 3 to reduce the momentum of the foul ball.

As shown in detail in FIG. 4, the ball feeding unit 700 is provided with a launch ball sensor 701 at the end (left end) of a guide gutter 705 inclined to the lower left in the figure, and the launch ball sensor 701 is also provided. A ball feeding mechanism 706 is provided on the left side. The guide trough 705 has a communication port 704 opening from the ball supply tray 9B at the start end (right end), and the ball supply tray 9 via the communication port 704.
Align the game balls flowing from B to the top. The firing ball sensor 701 is composed of a light transmission type photo switch,
It is connected to the ball ejection control device 902. The launch ball sensor 701 blocks the 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 for ball control and a ball feed solenoid 706a for urging the ball control lever 706c. Regulation lever 706c
Has a left end rotatably supported by a shaft 706b in the drawing, an engaging portion 706e at an upper right end, and a housing portion 7 at a lower right end.
With 06d. This restricting lever 706c swings counterclockwise when the ball feeding solenoid 706a is energized to store the game ball in the storage portion 706d, and the ball feeding solenoid 7
When 06a is de-energized, it swings in the clockwise direction in the figure by its own weight to restrain the game ball by the engaging portion 706e and sends the game ball in the housing portion 706d to the launch position of the launch rail 120. The ball feed solenoid 706a is connected to a firing control drive device 650, which will be described later, and is intermittently energized at a timing equal to the timing of firing the game sphere.

As shown in FIGS. 5 to 8, the operating handle 10B is constructed by assembling a mounting member 601, a rotation operating member 602, a bearing disc 603, and a grip member 604, which are made of a non-conductive material. It is supported by the saucer mounting plate 10A. The attachment member 601 has a substantially cylindrical shape with an open front portion, and is fixed to the bracket 605. A plurality of bosses 605a, 605b, 605c, 605d having screw holes in the front portion are formed on the mounting member 601, and the bearing plate 603 is fixed by screws screwed into the screw holes of the bosses 605a to 605d. The terminal 610 is attached to the one boss 605b by the terminal plate 611. The terminal 610 is connected to the wiring 612 connected to the firing drive control device 650, and the touch plate 604a of the handle member 604, which will be described later, is connected.
Connected to.

As shown in detail in FIG. 7, the bearing disc 603 has a substantially disk shape with an insertion hole 603a formed in the central portion, and a variable resistor 640 is provided on the back surface side. In the variable resistor 640, the detection shaft 640a rotatably penetrates the insertion hole 603a, and the nut 613 and the washer 614 are provided.
It is fixed to the bearing disc 603 by. This variable resistor 64
0 has a built-in variable resistor whose resistance value changes according to the turning operation angle of the turning operation member 602, and this variable resistor is connected to the firing drive control device 650 via a connector CN4 and the like described later.

The bearing disc 603 has three shaft portions 603b, 603c, 603d and two support shafts 603e, on its surface.
603f and a hole 603g are further formed. A switch lever 615 for hitting ball stopping operation is swingably supported on one of the support shafts 603e and a micro switch 645 is fixed to the other support shaft 603f. The switch lever 615 operably projects to the outside from the notch 601f of the mounting member 601, and also engages with the detector of the micro switch 645 inside the mounting member 601. The micro switch 645 is connected to a connector CN5, which will be described later, by a wire (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 ball stop signal to the firing drive control device 650. Although detailed description is omitted, the three shaft portions 603b, 6
03c and 603d are loosely inserted into a later-described long hole of the rotation operation member 602 to regulate the maximum rotation angle of the rotation operation member 602, and the screw for fixing the terminal 610 described above is loosely inserted into the hole 603g.

The rotating operation member 602 is integrally rotatably connected to the detection shaft 640a of the variable resistor 640 described above,
The rotation angle is detected as a resistance value by the variable resistor 640. A boss 602a is provided at the center of the front surface of the rotary operation member 602, and a long hole 602b is formed around the boss 602a so as to correspond to the shaft portions 603b, 603c, and 603d. In this rotation operation member 602, a torsion spring 616 is loosely fitted around the outer periphery of the boss 602a, and as described above, each shaft portion 603 is inserted into the long hole 602a.
b, 603c and 603d are loosely inserted to regulate the maximum rotation angle. The torsion spring 616 has a boss 6 at one end.
It is locked to a locking part near the base of 02a, and the other end is fixed to the mounting member 601 with a screw together with the above-mentioned terminal. It should be noted that 602f is a locking portion formed on the outer peripheral portion of the rotation operation member 602, and the player can use this locking portion 6
The operator manipulates the operation angle of the rotary operation member 602 with his / her hand on 02f.

The handle member 604 is shown in FIGS. 5, 6 and 8.
As shown in FIG. 7, the mounting member 60 is formed into a substantially bowl shape having a substantially hemispherical outer surface, and a disc-shaped intermediate member 616 is interposed therebetween.
It is fixed at 1. A touch switch 604a is formed on the outer peripheral surface of the handle member 604 by vapor deposition of a conductive material,
As shown in FIG. 8, the touch switch 604a is connected to the above-mentioned terminal 610 via a screw or the like. As will be described later, this touch switch 604a is
A change in capacitance due to a player's contact is detected.

Firing unit 400 is shown in FIGS.
As shown in FIG.
It has a rotary solenoid 402 fixed to 0A and a launching punch 403 attached to a drive shaft of the rotary solenoid 402. The rotary solenoid 402 uses a firing control drive device 650 via a connector CN3 described later.
And is supplied with a pulsed direct current from the firing control drive device 650 to drive the firing punch 403 intermittently at a predetermined cycle. The launching rod 403 has a base end fixed to the drive shaft of the rotary solenoid 402 and a tip end provided with a buffer spring 404 so as to be able to contact the game ball. The launch pestle 403 is driven by the rotary solenoid 402 to launch the game ball at the launch position of the launch rail 126.

A box 410 is detachably attached to the above-mentioned bracket 401 on the back side by a plurality of fasteners 406, and a firing drive control device 650 is accommodated in the box 410. As shown in FIG.
This launch drive control device 650 is connected to the above-mentioned ball discharge control device 902, and this ball discharge control device 902 is connected to the ball lending control device 903 and the game board control device 901. Although a detailed description is omitted, the game board control device 901 controls a winning object, a winning ball, and the like, the ball lending control device 903 performs a game ball lending control, and the ball discharge control device 9
02 controls the payout of gaming balls.

The firing drive control unit 650, as shown in FIGS. 11 to 14, has a two-terminal connector CN0, CN1,
It has CN2 and three-terminal connectors CN3 and CN4. Each of the terminals 1 and 2 of the connector CN0 is a 24V DC power source, the same applies to the connector CN1 where the terminals 1 and 2 are the ball feeding solenoids described above, the connector CN2 is the terminals 1 and 2 are the rotary solenoids, and the connector CN3 is the terminal 1 , 2,
3 is connected to the variable resistor, terminal 1 of the connector CN4 is connected to the touch plate, and terminals 2 and 3 are connected to the microswitch.
To the connector CN3, a fixed resistance is connected between the terminals 1 and 3, and a resistance whose resistance value changes between the terminals 1 and 3 according to the rotation angle of the rotation operation member 602 is connected. In the description of the firing drive control circuit 650, the resistors R, C, D, and Z are referred to as resistors, capacitors, diodes, and zener diodes, respectively.
The symbol D is represented by adding a numeral, and the description thereof will be omitted if necessary.

As shown in FIG. 12, the connector CN0 is
The terminals 1 and 2 are connected to the input terminal of the diode rectifier circuit 651. The diode rectifier circuit 651 is composed of a known full-wave rectifier circuit in which diodes are connected in a bridge shape, one of the output terminals of which is a stabilized power supply circuit 652, and
The ball feed solenoid 706a is driven in parallel (first) with the driver circuit 653 and the rotary solenoid 402 is driven in (second) with the driver circuit 654 (see FIG. 15), and the other output terminal is grounded. The diode rectifier circuit 651 rectifies 24V alternating current to 24V direct current and supplies it 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) is connected between a constant power source and ground. In this stabilized power supply circuit 652, the output terminal has an integrated circuit U4 for controlling the firing interval (see FIG. 13), a diode D12 of the second driver circuit 654 and an integrated circuit U7 for PWM control (FIG. 1).
4), and applies a signal of a predetermined potential to them, as will be described later.

The first driver circuit 653 has a connector C.
This is connected to the terminals 1 and 2 of N1, the terminal 1 of this connector CN1 is grounded, and the terminal 2 is an npn-type transistor (all shown in the circuit diagram of this embodiment are npn-type) transistor Q7
Is connected to the above-mentioned rectifier circuit 651 via a diode and a surge suppressor diode D6 is provided between the terminals 1 and 2 from the terminal 1 to the terminal 2
Interpose as the forward direction. Transistor Q
7, the collector is the rectifier circuit 651 and the emitter is the terminal 2
In addition, the base is connected to the rectifier circuit 651 through the diode D2, and the base is connected to the ground by the capacitor C1.
4 is connected to the collector of the transistor Q6 on the diode D2 side of the capacitor C14. The transistor Q7 conducts between the emitter and collector when the transistor Q6 is off, that is, is on, and is off when the transistor Q6 is on.

The emitter of the transistor Q6 is grounded, the base is connected to the collector of the transistor Q5, and is connected to the output terminal of the rectifier circuit 651 together with the collector of the transistor Q5. The transistor Q6 is turned on when the transistor Q5 is turned off, and turned off when the transistor Q5 is turned on. The transistor Q5 has an emitter grounded and a base connected to the terminal Q1 of the integrated circuit U4. This 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 intermittent pulsed current is supplied to the terminals 1 and 2, that is, the ball feeding solenoid 706a.

Further, as shown in FIG. 13, the connector CN
4 is a touch input detection circuit 655 and a switch circuit 656.
And connect. The touch input detection circuit 655 includes 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 that calculates the NOR of two input signals and an AND gate U51 that calculates the AND of two inverted input signals, and the output end of the AND gate U51 is the transistor Q2 of the switch circuit 656. Connected to. 65
Reference numeral 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 resistor R8 and the resistor R22.
The AND gate U51 is connected to one input terminal of the AND gate U51 in a plow shape, and the other input terminal is connected to the output terminal of the AND gate U51 via an inverter (reference numeral is omitted in the figure). The AND gate U51 has one input terminal connected to the terminal Q1 of the integrated circuit U2 via an inverter and a variable resistor VR1 for sensitivity adjustment. The touch input detection circuit 655 receives a pulse signal of a predetermined frequency from the integrated circuit U2 at one input terminal of the AND gate U51 and outputs a NO signal.
A signal indicating a capacitance change is input to one input terminal of the R gate, and a high potential (when the player is in contact with the capacitance changes when the player touches the touch plate of the operation handle 10B described above) ( High level), a low potential (low level) signal is output during non-contact.

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

In the switch circuit 656, the transistor Q3 is turned off and the output of the touch input detection circuit 655 is turned on when the ball is hit when the terminals 2 and 3 are electrically connected and opened by a switch operation and the terminals 2 and 3 are opened. A signal that leads to the base of Q4 and becomes low level when the output of the touch input detection circuit 655 is high level is output to the terminal CE of the integrated circuit U2.
Output Q0. Further, when the ball is stopped in which the terminals 2 and 3 are electrically connected, the transistor Q3 is maintained in the on state and the transistor Q4 is turned off, that is, a high level signal is output from the constant power source to the terminal CE of the integrated circuit U4.

Further, in FIG. 13, reference numeral 658 denotes an oscillation circuit, and the oscillation circuit 658 is constructed by using the integrated circuit U1 as a main component, and the output terminal of the integrated circuit U1 is an integrated circuit for frequency division (hereinafter, frequency division). (Referred to as a circuit) U2. The oscillator circuit 658 generates a pulse signal having a predetermined frequency,
This pulse signal is output to the integrated circuit U2. Frequency divider U
2, the output terminal 1 is the touch input detection circuit 65 described above.
5, the other output terminal is connected to the timing matching circuit 659. The frequency dividing circuit U2 divides the output of the oscillation circuit 658 and outputs a pulse signal having a predetermined frequency.

The timing matching circuit 659 is composed of a transistor Q1, diodes D13, D14, D15, a latch circuit 659a, etc., and is connected to a terminal R of the integrated circuit U4.
Connect to ES, CE, Q7. The timing matching circuit 659 outputs a signal corresponding to the output signal of the frequency dividing circuit 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 the above-mentioned terminals. This integrated circuit (hereinafter,
U4 is called a counter) 100 from the terminal Q1 for 1 minute.
A pulse signal is output to drive the ball feeding solenoid, and the terminal Q6 connected to the stabilized power supply circuit 652 is used as a gate to open and close in synchronization with the output pulse signal from the terminal Q1. The counter U4 causes a signal having a predetermined phase to appear at its terminal Q6 in the same cycle as the terminal Q1 as shown in FIG. 17b.

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 source. As described above, the fixed resistor of the variable resistor 640 is provided between the terminals 1 and 3, the terminal 2 variably engages the resistance value with the fixed resistor, and the divided voltage is applied to the terminal 2. Occur. Operational amplifier U61 is PWM
It is connected to the integrated circuit U7 for (pulse width modulation) and has a resistance value, that is, a rotating operation member 602 of the operation handle 10B.
To the integrated circuit U7.

The integrated circuit U7 is connected to a constant power source and is grounded, and the voltage generating circuit 6 for initial setting of the flight distance.
60 is connected, and 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 forward direction of the diode D11 toward the output end. In the voltage generation circuit 660, the operational amplifier U62 generates a predetermined voltage according to the ratio of the resistors R27 and R28 that are interposed in series between the constant power source and the ground. The voltage generated by the voltage generation circuit 660 corresponds to the initial flight distance of the game ball.

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 used. A signal corresponding to FIG. This signal has a higher frequency than the signal generated at the terminal of the integrated circuit U4 described above, as is apparent from the figure.

Further, as shown in FIG. 15, the connector CN
2 is connected to the second driver circuit 654. The second driver circuit 654 connects the terminal 1 of the connector CN2 to the rectifier circuit 651 described above via the transistor Q10 which is a switching element, grounds the terminal 2, and connects the terminals 1 and 2 with the surge killer diode D8. To wear. 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, and is connected to the stabilized power supply circuit 652 via R30.

The base of the transistor Q10 is grounded via the capacitor C15 and is connected to the collector of the transistor Q9. Further, the stabilizing power supply circuit 652 side, more specifically, the connecting portion with the transistor Q9, is concretely described. , A capacitor C between the resistor R19 and the resistor R30.
It is grounded via 17 and further grounded via zener diodes ZD5 and D7. The transistor Q10 connects the terminal 1 to the stabilized power supply circuit 652 in the on state to energize the rotary solenoid 402, and disconnects the terminal 1 from the power source in the off state.

The transistor Q9 has an emitter grounded, a base connected to the collector of the transistor Q8, and a stabilized power supply circuit 65 together with the collector of the transistor Q8.
Connect to 2. The transistor Q9 receives a high level signal at its base (when the transistor Q8 is off).
The base potential of the transistor Q10 is lowered by conduction between the emitter and collector, and the base potential of the transistor Q10 is cut off by turning off the emitter and collector when the base is low potential, that is, the transistor Q10 is turned on.

In the transistor Q8, the emitter is grounded, and the base is the stabilized power supply circuit 652, the terminal Q5 of the integrated circuit U4 and the diode D12 in the integrated circuit U7.
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 is turned on during the high level period of this signal and turned off during the 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 terminals Q1 and Q6 to have a predetermined phase difference based on a signal of a predetermined frequency input from the oscillation circuit 658, and the predetermined frequency, for example, 1 minute. Generates a pulse signal of about 100 pulses (see FIG. A), and the integrated circuit U7 outputs a signal having a predetermined duty factor (see FIG. 17b) according to the rotation operation angle of the rotation operation member 602 of the operation handle 10B. Is output.

Then, the signal at the terminal Q1 of the integrated circuit U4 is output to the first driver circuit 653, and the first driver circuit 653 responds to the input signal by the ball feed solenoid 7
06a is energized and driven. That is, the transistor Q
Since 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, the transistor Q6 also turns on and off according to the base potential to change the base potential of the transistor Q7 and turn on the transistor Q7. , Turn it off. Therefore, the ball feed solenoid 706a is energized intermittently, and sends the game balls one by one to the launch position of the launch rail 126.

The output signals of the terminal Q6 of the counter U4 and 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 intermittently turned on 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 emitter-collector is electrically connected to change the base potential of the transistor Q10. Therefore, the transistor Q10 is turned on / off in response to the phase opposite to that of the transistor Q9, that is, corresponding to the superimposed signal, and the rotary solenoid 402 is supplied with the current corresponding to the superimposed signal. That is, since the transistor Q10 turns on and off at the same cycle as that of turning on and off the transistor Q7 described above 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.

The firing drive control device 650 is
The duty factor of the signal output from the integrated circuit U7 to the second driver circuit 654 is changed according to the rotation operation angle of the rotation operation member 602 of the operation handle 10B, and the PW is changed.
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
The heat generation of 02 can be suppressed to the minimum, and the thermal influence on other devices can be reduced.

The firing drive control device 650 changes the base potential of the transistor Q10, which is a switching element in the second driver circuit 654, to the transistor Q9.
When the transistor Q9 is off, the potential applied from the stabilized power supply circuit 652 is stably held by the capacitor C15. Therefore, as described in the above-mentioned conventional technique, when the transistor Q9 shifts from the ON state to the OFF state, electric charge flows into the transistor C15 and the base potential of the transistor Q10 rises slowly (see FIG. 18b). Rotary solenoid 40
2 is short of energization period, which tends to cause poor firing. .

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 of the connection portion with the transistor Q9, and the capacitor C17 is switched to the off state of the transistor Q9. The charges are discharged and flow into the capacitor C15 and the like. Therefore, the base potential of the transistor Q10 rises quickly, the rise time of the energizing current is shortened as shown in FIG. 18a, and an appropriate energizing period of the rotary solenoid 402, that is, a predetermined duty factor can be reliably ensured. Therefore, the game ball can be surely fired, and the occurrence of a firing failure can be prevented.

In particular, the gaming machine 1 cannot avoid fluctuations in the power supply voltage due to restrictions on the installation environment, such as being installed in an island facility of a gaming shop, and this fluctuations in voltage affect the rise of the base potential of the transistor Q10 described above. Exert. However,
By providing the capacitor C17 as in this embodiment, its influence can be suppressed to a minimum, and the game can be made appropriate and entertaining.

In the embodiment described above, 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 No. 4, the present invention can be applied to the first driver circuit 653, and can be applied to the solenoid drive circuits of various devices other than the gaming machine 1. In particular, the present invention is effective for PWM control in which the energization period greatly affects 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 connects and disconnects the control terminal of the switching element with the signal source by the switch to turn on and off the switching element to intermittently energize the solenoid. In the drive circuit, a capacitor is provided in the switching element in parallel with the capacitor for stabilizing the voltage of the control terminal on the signal source side rather than the switch. It was configured to discharge to the condenser. Therefore, the potential of the switching element can be quickly raised, and the energization period of the solenoid can be reliably ensured.

The present invention stabilizes the game ball by using it as a circuit for driving the rotary solenoid of the game ball launching device in a game machine such as a pachinko machine in which fluctuations in the power supply voltage cannot be avoided due to restrictions in the installation environment. It can be fired to, and a proper game and an entertaining game can be achieved.

[Brief description of drawings]

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

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

FIG. 3 is a front view of the gaming machine with a part thereof opened.

FIG. 4 is an enlarged back view of a ball feeding unit portion 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 operating 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 portion 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 part of the circuit of the firing drive control device.

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

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

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

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

FIG. 18 shows a waveform of a current supplied to a solenoid, a
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-Sub) Switching element) C15 capacitor (first capacitor) C17 capacitor (second capacitor)

Claims (2)

[Claims] 1. A solenoid drive circuit in which a main switching element is interposed between a solenoid and a drive DC power source, and a pulse signal is applied to a control terminal of the main switching element to drive the solenoid by a chopper, wherein the switching element is a switching element. A signal source connected to the control terminal of the main switching element for outputting a signal of a constant potential to the control terminal; a first capacitor connected to the control terminal of the main switching element; and a ground for the control terminal of the main switching element. A sub-switching element that is connected in parallel to the signal source between and that opens and closes a pulse signal at the control terminal intermittently in response to an input signal, and the control terminal of the main switching element, rather than the sub-switching element. A second capacitor connected on the signal source side, and a solenoid drive circuit. 2. The solenoid drive circuit according to claim 1, applied to a game machine, wherein the main switching element is interposed between a game ball launch drive solenoid of a game ball launch device and the drive DC power supply. A solenoid drive circuit characterized by being installed.