JP2839151B2 - Electric pachinko machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-voltage detection display device that lights up when a power supply voltage drops.

[Conventional technology]

2. Description of the Related Art Conventionally, there has been known an electric pachinko machine that turns on a lamp when a launching device is driven to determine whether the pachinko machine is operating. For example, Japanese Utility Model Application No. 54-9871
The device described in No. 6 electrically connects an electric switch provided on the launch operation unit, an electric drive source, and a pilot lamp provided on the front of the pachinko machine, and turns on the electric switch. By operating the electric drive source and the pilot lamp when the pachinko machine is operating, it is possible to grasp whether the pachinko machine is operating and whether power is supplied to the pachinko machine.

By the way, in recent electric pachinko machines, many electrically driven accessories and lamps are used, and the electric capacity tends to increase. For this reason, the power supply voltage is often lower than the rated voltage, and the operation of the accessory driven by the solenoid or the like becomes unstable, and there is a possibility that it cannot be distinguished from the failure of the accessory.

[Problems to be solved by the invention]

The present invention has been made based on the above circumstances,
It is an object of the present invention to provide an electric pachinko machine that can immediately determine whether a power supply voltage has dropped or a malfunction has occurred.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a low-voltage detection circuit attached to a circuit for supplying power, and a low-voltage alarm lamp that is driven to blink by an output from the low-voltage detection circuit. Features.

[Action]

When the power supply voltage drops, the low voltage detection circuit operates and the low power alarm lamp blinks.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

First, a pachinko machine according to an embodiment will be described with reference to FIG. 7 to FIG. FIG. 7 is a front view of the pachinko machine, FIG. 8 is a rear view of the pachinko machine, and FIG. 9 is a schematic view showing a winning ball processing mechanism and a full tank stopping device. In the figure, a metal frame 3 is provided around an opening of a front frame 2 formed in a frame shape of the pachinko machine 1.
The metal frame 3 has a glass door frame 4 having glass.
And a front plate 5 are provided to be freely opened and closed. Behind the glass door frame 4, a game board 6 detachably attached to a game board fixing frame 7 (see FIG. 8) fixed to the back surface of the front frame 2 is arranged. The game board 6 is provided with a fixture 7 provided on the game board fixed frame 7 with respect to the game board fixed frame 7.
It is firmly fixed by a and 7b (see FIG. 8; there is actually another one but not shown).

A guide rail 8 for guiding a hit ball is planted in a substantially circular shape on the front surface of the game board 6, and a range surrounded by the guide rail 8 constitutes a game area 9. In almost the center of the game area 9, a variable winning device 10 is provided. The variable winning device 10 has a pair of open / close wing pieces 12a and 12b,
a, 12b are opened until a certain time (for example, 20 seconds) elapses or until a certain number (for example, 10) is won, and such an open state is repeated several times (for example, 10 times), and a short time is obtained. A large number of winning balls are generated.
Further, below the variable winning device 10, a variable display 11 composed of a plurality of digital displays is formed. The variable display 11 is provided with a start winning port 13 provided below the game area 9.
The display mode starts to change when a hit ball is awarded in a to 13c, and the stop switch 16 provided on the front frame 2 is changed.
Is stopped when a predetermined time (for example, 5 seconds) elapses without pressing. Then, the display mode of the plurality of digital displays when stopped is determined in a predetermined display mode (for example,
(When the same number is displayed), the opening / closing wing pieces 12a and 12b are opened in the manner described above.

Further, in the game area 9, in addition to the above-mentioned prize apparatus, general prize ports 14a to 14d are provided. In addition, any of the above-mentioned prize apparatuses, or an out port to which a hit ball which does not win a prize port is guided. 15 are formed. Of the general winning ports 14a to 14d, the general winning ports 14c, 1
4d, when the opening and closing wing pieces 12a, 12b are open,
The hit ball that collides with the tip is guided to facilitate winning.

In addition, outside the game area 9 of the game board 6, on one upper side thereof, there is an acquisition ball payout lamp 17b for notifying a player that there is a winning ball, and a prize ball tank 50 described later. A supply ball out lamp 17a is provided for notifying that the number of prized prized balls has decreased. In this embodiment, the acquired ball payout lamp 17b
And the supply ball out lamp 17a are provided separately, but they may be shared.

On the surface of the front plate 5, there is attached an upper plate 18 for preferentially storing a prize ball paid out from a prize ball discharge device 56 described later due to generation of a winning ball, and guiding a hit ball to a firing position. I have.

At the top of the front frame 2, a metal frame security lamp switch 19 is provided.
, And a touch indicator lamp 2 that lights up when it comes into contact with a tentacle detection plate 24 described later.
0, and a big hit lamp 22 that blinks when the variable display 11 has a predetermined display mode. The metal frame security lamp switch 19 is mounted on the game board fixed frame 7.
Is fixed at a position facing the opening side of the glass door frame 4 and is activated when the glass door frame 4 is opened. Thereby, when the player illegally opens the glass door frame 4, the metal frame security lamp 21
Blinks to prevent illegal play. In addition, the metal frame security lamp 21 also functions as a display lamp for displaying a low voltage detection described later.

Below the front frame 2, a firing operation part (firing handle) 23, which constitutes a part of the firing device, is projected and fixed. An adjustment lever for adjusting the resilience of a hit ball is rotatably provided on the firing operation unit 23. In the illustrated embodiment, the adjustment lever and a tentacle detection plate (touch plate) 24 are provided.
And are also used. Of course, the adjustment lever and tentacle detection plate 24
May be formed separately. In short, it is only necessary that the arrangement is such that the adjustment lever can be naturally contacted with the tentacle detection plate 24. Further, a main switch 25 that is closed by rotating the tentacle detection plate 24 is provided in the firing operation unit 23. Further, the launch operation unit 23
A single-shot switch 26 is provided at a position where the switch can be touched while operating the switch.

Further, below the front frame 2 and beside the firing operation unit 23, a lower plate 27 for storing a prize ball that could not be stored in the upper dredge 18 is attached.

Next, the back structure of the pachinko machine 1 will be described with reference to FIG. 8. A winning ball set cover 28 is detachably attached to the back surface of the gaming board 6. The winning ball aggregate cover 28 is formed so as to cover the entire back surface of the game area 9 and guides the hit balls hitting the various winning devices described above to fall downward. A control board box 29 for accommodating a control board for controlling the operations of the variable winning device 10, the variable display 11, and the like is fixed to the back surface of the winning ball collecting cover 28.

On the other hand, a mechanism plate 30 is provided so as to cover the entire back surface of the game board 6.
Is attached to open and close freely. As is well known, the mechanism plate 30 forms a mechanism for processing a winning ball guided to the above-described winning device and paying out a predetermined number of premium balls. Therefore, the structure of the mechanism plate 30 will be described in detail.
An opening 31 slightly smaller than 28 is opened, and the mechanism plate
The control board box 29 penetrates the opening 31 when opening and closing the 30, so that the opening and closing operation of the mechanism plate 30 can be performed smoothly. Also the opening
A wiring storage portion 32 projects rearward from the periphery of one side of the mechanism plate 31, and stores wiring from various electrical components provided below the mechanism plate 30, and a rear surface of the mechanism plate 30. It is arranged so that extra wiring does not pop out. The mechanism plate 30
Are engaged integrally with the game board 6 by engaging fastening tools 44a to 44d provided at substantially four corners thereof with fastening pins (not shown) projecting from the game board fixing frame 7. It is supposed to be.

On the front side of the mechanism plate 30, a winning ball collecting space including the above-mentioned winning ball collecting cover 28 is formed, and a winning ball collecting trough 33 which receives a winning ball and guides it to one side at the bottom of the winning ball collecting space.
Are formed. A prize ball passage 34 is connected to the end of the prize ball collecting gutter 33, so that one prize ball is supplied to the prize processing mechanism 45. As shown in FIG. 9, the prize ball processing mechanism 45 has a prize ball placement portion 35 formed at an end of the prize ball passage 34, and a ball pushing portion is provided on one side of the prize ball placement portion 35. A lever 36 is provided rotatably. The ball pushing lever 36 has a rear end engaged with an engaging cam 38 rotated by a winning ball discharging motor 37. Then, by engaging the engagement cam 38 with the ball pushing lever 38, the ball pushing lever 36 is rotated to push the winning ball stopped on the winning ball placing portion 35 to the other side.
On the other hand, an operating lever 39 is rotatably supported on the other side of the winning ball mounting portion 35, and rotates in contact with the winning ball pushed out by the ball pushing lever 36. Further, the operating lever 39 is connected to a connecting rod 40 which is connected to a prize ball discharging device 56 described later, and the connecting lever 40 moves up and down by rotating the operating lever 39. Further, an acquisition ball payout lamp switch 41 for turning on the acquisition ball payout lamp 17 is disposed near the operating lever 39, and is operated by rotating the operating lever 39.

The winning ball whose actuation lever 39 is actuated is ejected from the winning ball placing section 35 to the winning ball discharging passage. At the lower end of the winning ball discharge passage 42, a winning ball detection switch 43 is provided to send winning ball information to a management computer (not shown) installed in the game arcade. The winning ball, for which the winning ball detection switch 43 is operated, is discharged from the pachinko machine 1 from the winning ball discharging passage 42 through a ball removal passage 62 described later.

On the other hand, a mechanism for paying out a predetermined number of prize balls is formed on the rear side of the mechanism plate 30, and these mechanisms will be described. First, a supply mechanism (not shown) is provided on the top of the mechanism plate 30. A prize ball tank 50 for storing a prize ball replenished from is provided. Below the prize ball tank 50, a guide gutter 51 for arranging the prize balls in two rows is provided so as to be inclined in the horizontal direction. At a position upstream of the guide gutter 51 and below the prize ball tank 50, a ball-break detecting plate 52 is pivotally supported so as to be swingable. In addition, at the position below the cutout detection plate 52,
Two switches are mounted in parallel in the front-rear direction, that is, a replenishment switch 53 and a replenishment switch switch 54 (only one switch is shown in FIG. 8). When the out-of-ball detection plate 52 swings due to the shortage of the prize ball, the supply switch 53 is operated to send a signal to the management computer, and the supply mechanism (not shown) is operated to move the supply switch 53 relative to the prize ball tank 50. Many prize balls are replenished. On the other hand, when the supply-supply-out lamp switch 54 is operated, the supply-supply-out lamp 17a is turned on to notify the player that the prize ball tank 50 is short of prize balls. In addition, an interlocking rod 52a, an operating piece 52b, a connecting rod 52
c, the lever 52d and the stopper 52e are connected, and when the ball-out detecting plate 52 swings, the stopper 52e enters the winning ball passage 34 to prevent the winning ball from flowing. Thereby, the payout of the prize ball is stopped.

On the bottom surface of the bent gutter 55 connected to the lower end of the guide gutter 51, a ball extraction lever 63 is provided so as to be swingable, and by releasing the locking state of the ball extraction lever 63, a prize ball is released. The pachinko machine 1 is discharged down the passage 62.

A prize ball discharging device 56 is connected to the bent gutter 55. The prize ball discharging device 56 includes a prize ball case 57 for accommodating a predetermined number of prize balls, an upper opening / closing valve 58 for opening / closing an upper opening of the prize ball case 57, and a lower portion for opening / closing a lower opening of the prize ball case 57. On-off valve 59, upper on-off valve 58 and lower on-off valve
59 and an operating member 60 alternately opened and closed with the connecting rod 40. The prize ball discharging device 56 is configured as described above, and the operating member 60 alternately opens and closes the upper opening and closing valve 58 and the lower opening and closing valve 59 in conjunction with the vertical movement of the connecting rod 40. Prize ball case that has flowed down
It is supplied or stopped in 57 and operates to pay out a predetermined number of prize balls. The prize ball discharged from the prize ball discharge device 56 flows down the discharge passage 61 and reaches a prize ball discharge port 64, and thereafter, from the prize ball discharge port 64, the upper plate 18
It is led to.

A communication passage 65 is formed on one side of the prize ball discharge port 64. When a prize ball is clogged in the upper plate 18 and the prize ball discharge port 64, the prize ball overflows naturally and flows down from the communication path 65. ing. Since the communication path 65 is connected to the preliminary discharge path 66 connected to the lower plate 27, the prize sphere overflowing from the prize ball discharge port 64 passes through the communication path 65 and the preliminary discharge path 66 to the lower plate.
Guided to 27.

A full tank detection plate 67 is pivotally supported on one side surface of the preliminary discharge passage 66 as shown in FIG. That is, the full tank detection plate 67 is provided with a spring 68 that constantly urges toward the center of the preliminary discharge passage 66, and when a prize ball is clogged in the preliminary discharge passage 66, the prize ball resists the urging force of the spring 68. The full tank detection plate 67 is swung by the ball pressure. Further, a full tank stop switch 69 is disposed outside the preliminary discharge passage 66 and at a position corresponding to the full tank detection plate 67, and operates when the full tank detection plate 67 is swung by the ball pressure. Thus, the winning ball discharging motor 37 is stopped so that the winning ball is not processed.

The mechanism plate 30 has, in addition to the above-described mechanisms, an input / output board A70 that receives power supply from the outside, and a metal frame security lamp for controlling the metal frame security lamp 21 and the metal frame security lamp switch 19 described above. A board 71, an input / output board B72 for interconnecting the various electrical devices described above and the input / output board A70, and a touch switch board (tentacle detection circuit) for determining the detection state of the tentacle detection plate 24 described above. 73 is installed.

At the lower part of the rear surface of the front frame 2, a launching motor 76 and a hitting / launching mechanism 77 including a hitting rod and a resilience adjusting device are mounted. Also, the launching device has a capacitor 75 for rotating the launching motor 76,
Main switch 25, single-shot switch 26, firing motor 76
An input / output board C74 for connecting to the like is included.

The circuit configuration of each input / output board provided as described above will be described with reference to FIGS. FIG. 1 is a block diagram of a circuit provided in a pachinko machine. In FIG. 1, the input / output board A70 includes connectors CONa to CONh and 2
I / O board B72 has connectors FCON
m, and the touch switch substrate 73 has connectors CONp to CON
The input / output board C74 has connectors CONs to CONv, and the metal frame security lamp board 71 has a flash circuit 79, a low voltage detection circuit 90, and the like. Thus, the connector provided on the input / output board A70 is applied as follows. AC power (24V) is connected to CONa. A connection line for supplying power to the control board housed in the control board box 29 is connected to CONb. CONc
Is connected to the management computer, and the supply switch
A supply signal from 53 is transmitted. The metal frame security lamp board 71 is connected to CONd. Some terminals of CONe
The replenishment switch 53 is connected, and the other terminal is connected to a replenishment ball out lamp switch 54. The supply ball out lamp 17a and the acquired ball payout lamp 17b are connected to CONf. CONg and CONh are connected to the winning ball detection switch 43 via CONi provided on the input / output board B72,
The information is transmitted to a management computer or the like. In addition,
CONg and CONh may be used as needed.

In the connector provided on the input / output board B72, first, as described above, the winning ball detection switch 43 is connected to CONi, and the winning ball discharging motor 37 is connected to CONj,
CONk is connected to a winning ball payout lamp switch 41, CONl is connected to a full tank stop switch 69,
The touch switch board 73 is connected to CONm.

In the connector provided on the touch switch board 73, CONp is connected to the CONm, and CONq is connected to the input / output board C74 via CONr.

In the connector provided on the input / output board C74, first, the single-shot switch 26 is connected to CONs, and
A tentacle detection plate (touch plate) 24 provided in the firing operation unit 23 and a main switch 25 are connected, and a capacitor is connected to CONu.
75 is connected, and a firing motor 76 is connected to CONv.

The flash circuit 79 provided in the metal frame security lamp board 71 is connected to the metal frame security lamp switch 19 via CONn and the metal frame security lamp 21 via CONo. Further, the touch display lamp 20 is connected to the metal frame security lamp board 71.
It is connected regardless of 79. The low-voltage detection circuit 90 is incorporated in the metal-frame security lamp board 71, and the low-voltage detection output is used as a contact output as a metal-frame security lamp switch 19.
And are connected in parallel.

Of the above connectors, CONc, CONg, CONh, CONi
All other connectors are supplied with the power taken in from CONa.
17a is connected in series, the obtained ball payout lamp switch 41 and the obtained ball discharge lamp 17b are connected in series, and the full stop switch 69 and the winning ball discharge motor 76 are connected in series. And the touch switch 78, the single-shot switch 26, the main switch 25, and the firing motor 76 are connected in series. Also,
The metal frame security switch 19 and the metal frame security lamp 21 are connected via a flash circuit 79. Further, the touch display lamp 20 is connected so as to be in series only with the touch switch 78.

The operation of the circuit configured as described above will be described. The player operates the tentacle detection plate (touch plate) 24
, The touch switch 78 is turned ON. Then
Since the circuit of the touch display lamp 20 is closed, the touch display lamp 20 is turned on. That is, the touch display lamp 20
Is configured to light only when the player is connected to the tentacle detection plate 24, and if a malfunction occurs in the touch switch board 73 and the same state as the touch switch 78 is turned on, , The touch display lamp 20 is turned on. Thus, in the pachinko machine 1 in which the touch display lamp 20 is lit, if a player is playing a game, the pachinko machine 1 indicates that it is operating, and conversely, if there is no player, , The touch switch board 73 of the pachinko machine 1
Is immediately noticeable. If the malfunction of the touch switch board 73 is in the same state as when the touch switch 78 is turned off, the firing motor 76 does not rotate at all and cannot be repelled, and as a result, the player plays an illegal game. In this case, touch switch board
73 must be replaced.

The detailed circuit diagram of the touch switch substrate 73 is shown in FIG.
As shown in the figure, it has a non-contact switching element, which will be briefly described.In a normal state, the thyristor SCR1 is not triggered because the oscillation circuit 80 is oscillating, so that the diode Bridge D4-2
The secondary side remains OFF, and the primary side of the diode bridge D4 does not conduct. On the other hand, when the tentacle detecting plate 24 comes into contact, the oscillation of the oscillation circuit 80 stops, so that the thyristor SCR1 is triggered, the secondary side of the diode bridge D4 is turned on, and the primary side of the diode bridge D4 is turned on. As a result, the circuit of the touch display lamp 20 is closed, and the touch display lamp 20 is turned on.

On the other hand, at the point in time when the player has just contacted the tentacle detection plate 24, the firing motor 76 has not been driven since the main switch 25 has not been turned ON yet, and therefore no hit ball has been hit. In this state, when the player rotates the tentacle detecting plate 24, which is an adjustment lever, the main switch 25 is turned on, the firing motor 76 is driven, and the ball can be hit to hit the game area 9. . Thus, when the player wants to hit one, pressing the single-shot switch 26, which is a normally-closed switch, opens the circuit, so that the rotation of the firing motor 76 is stopped and the bouncing can be stopped. Therefore, by hitting the single-shot switch 26 intermittently, one hit ball can be fired. Also, as a result of intermittent gaming,
When a large amount of prize balls are stored in the preliminary discharge passage 66, the full tank stop switch 69 is turned off, so the prize ball discharge motor 37 stops rotating and the prize ball is not processed,
The payout of the premium ball is stopped. At this time, in the illustrated embodiment, the rotation of the firing motor 76 is stopped by the operation of the full tank stop switch 69. However, regardless of this, the operation of the full tank stop switch 69 causes the winning ball discharge motor. Stop only 37 and launch motor 76
May be configured to continue driving as it is and continue the game.

When the supply ball out lamp switch 54 is operated, the supply ball out lamp 17a is turned on, and when the acquired ball payout lamp switch 41 is operated, the acquired ball payout lamp 17b is turned on. These operations are performed independently of each other.

FIG. 3 is a circuit diagram of a frame security device also serving as a low voltage detecting device of a pachinko machine according to the present embodiment, and FIG. 4 is a detailed diagram of a power supply circuit thereof. 3 and 4, reference numeral 19 denotes a metal frame security lamp switch which is closed when the metal frame 3 is opened;
Is a low voltage detection circuit, 131 is an initial prohibition circuit for preventing malfunction at power-on, and 133 receives an "H" signal, inverts an output signal to an "L" state, and outputs a signal with a predetermined time delay. A delay circuit 134 for returning the signal to the "H" state, a flicker circuit 134 that operates when the "H" signal is input and blinks the frame security lamp (also serving as a low voltage detection display lamp) 21; G a gate circuit; Is a resistor, C is a capacitor, Th ₁
The transistor, Vdd is the supply voltage for the IC, V ₀ with is an AC power supply (AC24V) power supply voltage for the metal frame security lamp 21 obtained by rectifying the supplied pachinko machine body, the voltage to be the voltage monitored It is. Note that the power supply circuit 100, the flash circuit 79, and the low-voltage detection circuit 90 are disposed on the metal frame security lamp board 71.

In the present apparatus, the metal frame security lamp 21 does not blink in a normal state, and the metal frame security lamp (low voltage detection display lamp) 21 blinks when the metal frame security lamp switch 19 or the low voltage detection circuit 90 is activated. It is what was constituted.

First, the operation of the frame security device for a pachinko machine configured as described above will be described. When the AC power is supplied to the connector CONd of the pachinko machine, the AC power is rectified by the rectifier D5 to a DC voltage (monitoring voltage) V ₀ , and the DC voltage V ₀
Is the power supply voltage Vd for IC through the Zener diode ZD.
d. When the initial prohibition circuit 131 to the voltage Vdd is applied to charge the capacitor C ₀ of the initial prohibition circuit 131, at both ends of the resistor R ₀ current flows due to the charging current, in the initial X-point charging "H" State. Accordingly, the output of the inverter gate G ₀ becomes "L" state, "L" signal is sent to the first input of the gate circuit G ₂ and the gate circuit G _4. Then, the gate circuit G ₄ are be either because a NAND circuit state of the second input of "L", "H", the output is "H"
A state, "L" signal is applied which is inverted by the inverter gate G ₅ to the input of the flicker circuit 134. However, as will be described later, the flicker circuit 134 does not operate unless an "H" signal is sent to the input.
21 does not blink.

On the other hand, by turning on the power, the inverter gate G ₁
Since the metal frame security lamp switch 19 is a normally open contact,
An "H" signal is applied and its output goes to an "L" state. Therefore, immediately after power-on applied both "L" signal to the two inputs of the gate circuit G _2, since the gate circuit G ₂ is a NAND circuit, the output thereof becomes "H" state. Further, "H" signal from the gate circuit G ₂ is the first input of the gate circuit G ₃ is also NAND circuit gate circuit G ₃ is, to the second input subjected to any "H" signal from the gate circuit G ₄ Because the gate circuit
The output of G ₃ are becomes "L" state, the "L" signal is applied to the second input of the gate circuit G _4, since the added is "L" signal to the first input of the gate circuit G ₄ as described above , Are in the “H” state.

Then, when the charging of the capacitor C ₀ ends, no current flows through the resistor R ₀ , and the point X becomes “L” state,
The output of the inverter gate G ₀ is the signal applied to the first input of the gate circuit G ₂ and the gate circuit G ₄ becomes "H" state from the "L" is changed to "H", the gate circuit G ₂ and the gate circuit G ₄ Since the "L" signal is added to the second input as described above,
The circuit remains stable with its output at the "H" state. That is, when the power is turned on, the output of the gate circuit G ₄ are charged early nor both its output upon completion of charging the capacitor C ₀ becomes "H" state. This "H" signal is the inverter gate
Since the inverted by G _5, the flicker circuit 134,
An "L" signal is added. Gate circuit G ₆ of flicker circuit 134
Is a NAND circuit, so that if one of the two inputs is in the "L" state, its output will always be in the "H" state regardless of the other input signals. The "H" signal is inverted by the inverter gate G _7, the output of the flicker circuit 34 becomes "L" state, current does not flow through the base of the transistor Th _1, the transistor Th ₁ is in the OFF state. As described above, in the present embodiment, the provision of the initial inhibition circuit 131 prevents the occurrence of erroneous operation at the time of power-on due to the influence of the capacitor C and the resistor R inserted in the circuit.

When the player is performing a game normally, contacts the metal frame security lamp switch 19 is in the open state, since the input of the inverter gate G ₁ being applied is "H" signal, as described above In addition, the gold frame security lamp 21 is turned off.

However, when the player opens the metal frame 3 in an attempt to cheat, the metal frame security lamp switch 19 detects this and closes the contact. Then, the input signal of the inverter gate G ₁ is changed from "H" to "L", the output signal is "L"
Changes to "H". As a result, the delay circuit 133 operates.

FIG. 5 is a waveform diagram of each part of the delay circuit. Hereinafter, the operation of the delay circuit will be described with reference to FIG. The gate circuit G ₂ is a NAND circuit, since the first input of the gate circuit G ₂ are joined by "H" signal from the initial prohibition circuit 31 as described above, the signal of the second input becomes "H" if, both the input becomes "H" signal, the output signal of the gate circuit G ₂ is changed from "H" to "L". Thereby, the gate circuit G ₃
Since the "L" signal is applied to the first input and the second input, the output changes from "L" to "H". That is, when the point A falls from “H” to “L”, the point B becomes “H” and charging of the capacitor C ₁ starts with this voltage.
C point voltage across the resistor R ₁ is generated becomes "H" state, "H" signal is applied to the second input of the gate circuit G _4. Since the first input of the gate circuit G ₄ are being applied is "H" signal from the initial prohibition circuit 31 as described above, "H" to the second input
If Kuwaware signal, its output becomes "L" state, the "L" signal is sent to the gate circuit G ₃ and the inverter gate G _5.

The gate circuit G ₃ is a NAND circuit, and if the “L” signal is applied to the second input, the output of the gate circuit G ₃ is in the “H” state even if the first input returns from “L” to “H”. It continues to charge the capacitor C ₁ to maintain. Thus, no matter how quickly the player opens and closes the metal frame 3 and commits a fraud, once the metal frame 3 is opened, an alarm operation is performed for a certain period of time. Of course, the alarm operation is performed for a certain period of time even in the open state. Furthermore, the voltage at the point C is reduced charging current and the charging progresses decreases, when this voltage falls below the thread and hold the level of the gate circuit G _4, the second input of the gate circuit G ₄ is changed from "H"" since changes to L ", the output signal of the gate circuit G ₄ are" L "
Changes to "H". Thus, the second gate circuit G ₃
It changes input from "L" to "H", the output of the gate circuit G ₃ returns to the "H" state. From the above, the width of the output pulse of the gate circuit G ₄ are independently of the width of the output pulse of the gate circuit G _2, a constant width determined by the capacitor C ₁ and resistor R _1.
Width T ₁ of the output pulse, when the Vth = Vdd 1/2 (where, Vth Threading hold voltage), and T ₁ = 0.7C ₁ R _1.

Here, assuming that C ₁ = 10 × 10 ⁻⁶ F and R ₁ = 1.5 × 10 ⁻⁶ Ω, the output pulse width T ₁ is T ₁ = (10 × 10 ⁻⁶ ) × (1.5 × 10 ⁻⁶⁾ ) = 15 seconds. Therefore, by changing the value of capacitor C ₁ and resistor R _1, arbitrary pulse width, ie it is possible to set the delay time.

FIG. 6 is a waveform chart in each part of the flicker circuit.
Hereinafter, the operation of the flicker circuit will be described with reference to FIG. When the power is turned on, the gate circuit
The output signal of the G ₄ "H" is sent to the inverter gate G _5, thus the first input of the gate circuit G ₆ of the flicker circuit 134 are joined by "L" signal. Since the gate circuit G ₆ is a NAND circuit, one of the inputs if "L", the output signal becomes "H". Further, the output signal “H” of the gate circuit G ₆ is connected to the second input of the gate circuit G _{6 by} the resistors R ₂ and R _3.
Added through.

Now, when the player opens the metal frame 3, the delay circuit 133
Falling pulse T ₁ is emitted is inverted by the inverter gate G ₅ is sent to the flicker circuit 134, a first input of the gate circuit G ₆ is changed from "L" to "H", the second input in advance " Since the “H” signal is added, the gate circuit G ₆
, Ie, the voltage at point E changes from “H” to “L”. Accordingly inverted output of the inverter gate G ₇ is F
Voltage at point changes from "L" to "H", it is charged capacitor C _2, at both ends of the resistor R ₂ voltage due to the charging current. As a result, the G point becomes "H" state in the initial charge, therefore, since the voltage is applied to the second input of the gate circuit G ₆ via the resistor R _3, the output of the gate circuit G ₆ is " circuit is stabilized with L "state, the capacitor C ₂ is continuously charged. Charging proceeds and the charge current will decrease., The voltage across the resistor R ₂ also decreases, its voltage falls below thread hold level of the gate circuit G _6, the output of the gate circuit G ₆ is inverted ""H" from L ", thereby the output of the inverter gate G ₇ is inverted from" H "to" L ". When the output of the gate circuit G ₆ becomes "H", the capacitor C ₂ begins to be charged in the opposite direction. In this case, the initial charge sufficiently large charging current, since the both ends of the resistor R ₂ voltage due to the charging current is generated, G point becomes "L" state, the circuit stable capacitor C ₂ by the reverse Although charging continues, the charging current decreases as charging progresses, and the resistance R ₂
Down voltage across is the voltage at the point G is equal to or greater than thread hold level of the gate circuit G ₆ rises, the output of the gate circuit G ₆ is inverted again becomes "L" state. This repetition continues while the "H" signal is applied to the first input of the gate circuit G _6. That is, the output pulse width T of the delay circuit 133
The output of _one hour inverter gate G ₇ is repeated and "L" state and a "H" state, oscillates. Its oscillation period T
₂ is T ₂ = 2.2C ₂ × R ₂ when Vth = Vdd 1/2 (where Vth is a threshold voltage).

Here, assuming that C ₂ = 0.1 × 10 ⁻⁶ F and R ₂ = 1 × 10 ⁻⁶ Ω, the oscillation cycle T ₂ of the flicker circuit is T ₂ = 2.2 (0.1 × 10 ⁻⁶ ) × (1 × 10 ⁶ ) = 0.22 seconds. Therefore, by changing the value of capacitor C ₂ and a resistor R _2, it is out to adjust the oscillation period T ₂ of the flicker circuit 134.

Then, when the output of the inverter gate G ₇ is "L" state, the transistor Th ₁ is in the OFF state, but the metal frame security lamp 21 is off, the "H" state output of the inverter gate G ₇ In this case, the transistor Th ₁ is turned on, a current flows through the transistor Th _1, and the
Current flows through 1. That is, the metal frame security lamp 21 is T ₁ = 15
Flashes every second for a period of T ₂ = 0.22 seconds.

By the way, in a game hall, generally, a plurality of clerks are always patrol in the store at all times. Therefore, once the player tries to cheat and opens the metal frame 3 once, the metal frame security lamp 21 arranged at the upper front of the pachinko machine frame blinks, so that such fraud can be easily found. Can be. When the metal frame 3 is opened, the metal frame security lamp 21 flashes, but automatically stops flashing after 15 seconds. Thus, even if the clerk opens the metal frame 3 when the game ball is caught on a nail, the metal frame security lamp 21 is automatically set after 15 seconds.
Is turned off, so that every time the metal frame 3 is opened and closed, there is no need to perform a reset operation for turning off the flashing metal frame security lamp 21, and it is possible to quickly process a game ball being caught.

As described above, when the player illegally opens the metal frame 3, the metal frame security lamp 21 flashes to notify a store clerk or the like of the game arcade that the illegal activity is being performed. Also,
When the clerk of the game hall opens the metal frame 3 to adjust the nails or catch the game ball, etc., the flashing of the metal frame security lamp 21 is automatically turned off after a predetermined time elapses. It is not necessary to perform a reset operation for stopping the blinking operation of the frame crime prevention lamp 21, and it is possible to quickly perform processing such as adjustment of a nail and catching of a game ball. The blinking time and blinking cycle of the metal frame security lamp 21 can be easily adjusted by changing the values of the capacitors and the resistors.

Next, the operation as the low voltage detection device will be described. Low-voltage detection circuit 90, as shown in FIG. 3, the input terminal is connected to the monitored voltage V _0, the output end is connected to the connector CONn. FIG. 7 is a detailed diagram of the low voltage detection circuit. In FIG. 7, CP is a comparator having an open collector output, IT is an interval timer using an astable multivibrator having an oscillation inhibiting function substantially the same as the flicker circuit 134, and M is a relay.

Now, when the monitoring voltage V ₀ is normal, the monitoring voltage V ₀ is equal to or higher than the breakdown voltage of the Zener diode ZD, so a reverse current flows through the Zener diode ZD in proportion to the monitoring voltage V ₀ , and the + input of the comparator CP Voltage applied to pin via pull-down resistor
V ₁ is added. Here, the comparator CP - pre voltages V ₁ lower than the reference voltage V _s is connected to the input terminal. Accordingly, the comparator CP is - compares the voltage V ₁ of the reference voltage V _s and + input terminal connected to the input terminal, V _1> V _s
Therefore, the output is in the OFF state. Therefore, the input side of the inverter G ₈ Vdd is applied through a pull-up resistor (i.e., the input side of the inverter G ₈ is "H" state.). The inverter G ₈ sends a "L" signal to the interval timer IT inverts the "H" signal. The interval timer IT is an astable /
Since a multivibrator is used and its operation is substantially the same as that of the above-described flicker circuit 134, a detailed description thereof will be omitted. When the input side of the interval timer IT is in the “L” state, the output side of the interval timer IT is also in the “L” state as in the case of the flicker circuit 134 described above. Therefore, the transistor Th ₂ has become OFF state, the contacts 91 of the relay M is in the open state. As a result, the input of the third diagram of the inverter gate G ₁ adds the "H" signal, since the output is inverted becomes "L" state, the low voltage detection display lamp 21 as described above will not blink.

On the other hand, when the monitor voltage V ₀ drops, in proportion to reverse current decreases the Zener diode ZD, the voltage is smaller than the reference voltage V _s applied through a pull-down resistor to the + input terminal of the comparator CP . Therefore, the output of the comparator CP becomes ON state, the current to flow from Vdd via a pull-up resistor, the input side of the inverter G ₈ becomes "L" state. The "L" signal is inverted by the inverter G _8, it is sent to the interval timer IT. When the input side of the interval timer IT is in the “H” state, the output side can also be in the “H” state as in the case of the flicker circuit 134 described above.
Thus, the transistor Th ₂ is changed to ON state, the relay M operates, the contact 91 is closed. Then
Input signal of the inverter gate G ₁ of FIG. 3 will change from "H" to "L", the output signal changes from "L" to "H". Accordingly, the delay circuit 133 operates similarly to the above-described metal frame crime prevention device, and the low voltage detection display lamp 21 blinks for 15 seconds via the flicker circuit 134. Monitor voltage even after 15 seconds
If V ₀ does not exceed the set value, the interval timer
IT repeatedly sends a pulse signal, and the contact 91 of the relay M is closed again. Therefore, as long as the monitored voltage V ₀ is less than a predetermined set value, the low voltage detection display lamp 21 flashes continuously.

According to the above embodiment, when the monitor voltage V ₀ is less than or equal to the specified value, indicating that the low-voltage detection display lamp 21 is flashing, the power supply voltage is lowered. Also, the low voltage detection circuit 90
Is provided with an interval timer IT, and unless the power supply voltage returns to a certain value or more, the low-voltage detection display lamp 21 continues to blink, so that it can be distinguished from the blinking of the metal frame security lamp 21.

Further, according to the above-described embodiment, since the interface between the flash circuit 79 and the low-voltage detection circuit 90 is configured by a contact switch, the low-voltage detection circuit 90 can be separately handled as an option.

In the above-described embodiment, the case where the contact switch is used as an interface between the flash circuit 79 and the low-voltage detection circuit 90 has been described. However, as the interface, a non-contact switching element may be used. In this case, it may be connected to the output of the low-voltage detection circuit 90 to inverter gate G ₁ instead of the NAND gate to an input terminal of the NAND gate.

Further, in the above embodiment, the case where the low voltage detection display lamp is used also as the metal frame crime prevention lamp 21 has been described, but the low voltage detection display device may be provided independently. Further, the low voltage detection circuit 90 may be provided on a control board or the like in the control board box 29.

〔The invention's effect〕

As explained above, the pachinko machine according to the present invention is:
It has a low-voltage detection circuit attached to the circuit to supply power, and a low-voltage alarm lamp that is driven to blink by the output from the low-voltage detection circuit. Since the display lamp blinks, when there is an abnormality in the operation of the accessory, it is possible to immediately grasp whether the power supply voltage has dropped or the accessory has failed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a circuit provided in a pachinko machine, FIG. 2 is a detailed diagram of a tentacle detection circuit (touch switch circuit),
FIG. 3 is a circuit diagram of a metal frame security device also serving as a low voltage detection device of a pachinko machine according to the present embodiment, FIG. 4 is a detailed diagram of the power supply circuit, FIG. 5 is a waveform diagram of each part of the delay circuit, FIG. 6 is a waveform diagram of each part of the flicker circuit, FIG. 7 is a detailed view of the low voltage detection circuit, FIG. 8 is a schematic front view of the pachinko machine, FIG. 9 is a rear view of the pachinko machine, and FIG. FIG. 4 is an enlarged sectional view showing a ball processing mechanism and a full tank stopping device. 1 ... pachinko machine, 21 ... metal frame security lamp (low voltage detection display lamp), 23 ... firing operation unit, 24 ... tentacle detection plate,
71: Metal frame security lamp board; 73: Touch switch board (tentacle detection circuit); 90: Low voltage detection circuit.

Claims (1)

(57) [Claims] An electric pachinko machine comprising: a low voltage detection circuit attached to a circuit for supplying power; and a low voltage alarm lamp which is driven to blink by an output from the low voltage detection circuit. Machine.