JP3319933B2 - Gaming machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is, for example, relates to Yu technique machine that will be represented by the pachinko game machine or the like and, more particularly, to Yu Technical machine game, Ru is performed by implanting hitting ball to the game area.

[0002]

BACKGROUND OF THE INVENTION This type Yu technique machine, to what has been known generally, for example, with a given area such as the starting winning regions in the game region is formed, the balls such as proximity switches A ball detecting means comprising a detector and a switch input circuit for processing a detection signal of the ball detector and inputting the processed signal to a game control means such as a microcomputer is provided. In the normal state where the ball detector does not detect the ball, a signal of a first potential such as a low level is output from the ball detection means to the game control means, and the hit ball that has entered the predetermined area is detected by the ball detector. At the time of detection, a signal of a second potential such as a low level is output from the ball detection means to the game control means.

[0003]

In THE INVENTION It is an object of this conventional Yu technique machine, there is a case where the ball detector is abnormal state disconnected or short. The following can be considered as a method of determining the maintenance state by the game control means.

That is, when the ball detector is disconnected or short-circuited, a signal having a different potential from the first potential and the second potential output from the ball detector is sent from the ball detector to the game controller. Is output to the game control means.
Is determined to be an abnormal potential different from both the potential of the second potential and the second potential, and it is determined that an abnormality has occurred.

[0005] In the case of such a configuration, the abnormality of the ball detector can be determined, but in the game control means, the potential input from the ball detection means is different from the first potential and different from the second potential. The level of the input potential, which is an abnormal potential, must be determined, and the operation control for determining the abnormality is complicated, and there is a disadvantage that the abnormality determination becomes difficult.

[0006] The present invention has been devised in view of such circumstances, and its object is to provide a Yu technique machine that can easily detect <br/> abnormality of the ball detector.

[0007]

SUMMARY OF THE INVENTION The present invention as set forth in claim 1 is a Yu technique machine game, Ru performed by implanting hitting ball to the game area, detecting a hitting ball, upon detection and non Different from when detecting
Ball detector that outputs a signal of a potential which has been detected, and a non-detection of the ball detector.
At the time of output, a signal of the first potential is input, and the detection of the ball detector is performed.
At the time of output, a signal of a second potential is input, and the signal of the first potential is
A threshold between the first potential and the second potential;
When a signal is input, a first level signal is output, and the second level signal is output.
Output a signal of the second level when a signal of the potential is input
And logic gate means, is inputted an output signal of the logic gate means, before and a game control means for controlling a playing state Ki遊 skill machine, said logic gate means, disconnection or short circuit occurs in the ball detector the described abnormality, the second level of <br/> signals continue to the output, the game control means, said logic
The input signal from the gate means is equal to or higher than a predetermined period the second Les
Based on the fact that a bell, to detect that an abnormality in the ball detector has occurred, mixing of noise due to radio wave
Sometimes, the output signal of the ball detector is biased toward the first potential side.
Characterized in that it place.

[0008]

According to the first aspect of the present invention, a hit ball is detected.
Due to the action of the ball detector
The signal of the potential is output. When the ball detector is not detected
A signal of the first potential is input to the logic gate means,
The signal of the second potential is supplied to the logic gate means upon detection of the ball detector.
And a threshold between the first potential and the second potential.
The logic gate means has
The stage has a first level when the first potential signal is input.
And outputs a second signal when the second potential signal is input.
Output level signal. Control the gaming state of gaming machines
The output signal of the logic gate means is input to the game control means.
It is.

The logic gate means is operable to disconnect the second ball detector when a disconnection or short circuit occurs in the ball detector.
The level signal is output continuously. Game control means, before
Based on the fact that the input signal from the logic gate has been at the second level for a predetermined period or longer, it is detected that an abnormality has occurred in the ball detector. In addition, by radio wave
When the noise is mixed, the output signal of the ball detector
1 to the potential side.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a pachinko gaming machine will be described as a ball game machine according to an embodiment of the present invention. In this embodiment, a pachinko game machine is shown as an example of a ball game machine. However, the present invention is not limited to this, and for example, a micro switch or a proximity The present invention can be applied to any gaming machine that may use a ball detector such as a switch.

FIG. 1 is a front view of a game board of a pachinko game machine as an example of a ball game machine according to the present invention. Referring to FIG. 1, a variable display device section 6 capable of variably displaying a plurality of types of symbols and a ball receiving member 12a, 1
A gaming machine in which a variable winning prize ball unit 11 that changes between a first state in which the ball is easily won by opening and closing the ball 2b and a second state in which the ball is hard to win or does not win is integrally mounted. 2 are provided. Below the gaming machine 2, a start winning port 15 is provided. A ball entrance 3 is provided at an upper portion of the gaming machine 2, and a specific winning opening 4 at which a game ball entering the ball entrance 3 stops is provided at a central portion of the gaming machine 2.
The symbol stop switch 5 is provided below the specific winning opening 4. The variable display device section 6 includes variable displays 6a to 6c each capable of variably displaying a plurality of types of symbols and a decorative LED (Light Emitting Diode).
e) 20 are provided. Below the specific winning opening 4, a ball receiving portion 8 for receiving a ball passing through the specific winning opening 4 and a ball received by the ball receiving portion 8 are displayed as display results when the variable display device 6 stops. A distributing device 7 for distributing right or left according to the content; and a distributing device 7 when the result displayed on the variable display unit 6 is a specific content (for example, a so-called "random"). A winning / disappearing winning port 9 for inducing a game ball by the player and a normal winning port 10 for inducing a game ball when the display result of the variable display unit 6 is otherwise. Below the distribution device 7, a remaining number display portion 14 for indicating how many times the variable prize ball device portion 11 can be opened later is provided, and around the distribution device 7, a winning number display 13 is provided. Is arranged.

In the game area 1, a side lamp 1 is further provided.
6, a windmill lamp 17, chucker lamps 18, 19 and the like are arranged.

FIG. 2 is a rear view of the game board shown in FIG. Referring to FIG. 2, the above-mentioned symbol stop switch 5 is arranged at the center of the back surface of gaming machine 2. The symbol stop switch 5 is a proximity switch. Symbol stop switch 5
The solenoid 21 for opening and closing the ball receiving members 12a and 12b (see FIG. 1), the motor 22 for driving the distribution device 7 (see FIG. 1), and the right generation / disappearance prize A right generation / destruction switch 23 composed of a micro switch for detecting a game ball having won the mouth 9 (see FIG. 1), and a variable winning ball device unit while the ball receiving members 12a and 12b (see FIG. 1) are opened. A count switch 24, which is an example of a ball detector composed of a proximity switch, for counting the number of game balls that have won the prize 11, and a micro switch for detecting a game ball that has won the start winning prize port 15 (see FIG. 1). A starting port switch 25 comprising a switch is provided.

Usually, a micro switch is used as a switch attached to the cover body on the back surface of the gaming machine.
A proximity switch is often used as a switch in a device that is integrally mounted on a game board surface as described above. This is because the microswitch is inexpensive but has a large volume, while the proximity switch has a small volume but is slightly more expensive. However, these uses are not necessarily fixed, and other uses may be made in some cases.

The outline of the operation of the pachinko gaming machine shown in FIGS. 1 and 2 is as follows. The pachinko ball fired and fired by the player is driven into the game area 1 shown in FIG. During this time, the symbols on the variable indicators 6a to 6c are constantly changing. When a game ball enters the ball entrance 3, the game ball stops at the specific winning opening 4 and is detected by the symbol stop switch 5. In response to the symbol stop switch 5 detecting a game ball, the displays of the variable displays 6a to 6c stop in order from the left. If the display result of the variable display unit 6 at the time of stoppage is “random”, the distribution device 7 is rotated clockwise in FIG. 1 by the motor 22, and the ball receiving unit 8 receives the game ball. It leads to the right generation / disappearance winning opening 9. If not, the distribution device 7 is rotated counterclockwise in FIG. 1 by the motor 22, receives the game ball in the ball receiving portion 8, and guides the game ball to the normal winning opening 10. The ball guided to the winning / disappearance winning opening 9 is detected by the right / disappearing switch 23.

The gaming machine control computer changes the control to a state called "right generation" in response to the right generation / destruction switch 23 detecting the game ball. When a game ball wins in the start winning port 15 during the right generation, the start port switch 25 detects the game ball. In response to this, the ball receiving members 12a and 12b are opened by the solenoid 21, and a state in which a game ball can be easily won from an opening 99 as an example of a predetermined region is established. The opening of the ball receiving members 12a and 12b is ended after a lapse of 10 seconds after the opening or when 10 or more game balls are won in the variable winning ball device section 11, whichever is earlier.
The winning of the game ball to the variable winning prize ball unit 11 is performed by the count switch 24 shown in FIG. During the generation of the right, the game ball is guided to the right generation / deletion winning prize port 9 in the same manner as described above, and the right is deleted by being detected by the right generation / deletion switch 23. Or start winning opening 1
The right is extinguished by winning 16 game balls in 5. When the right is generated, the remaining number display 14 displays “16”. Thereafter, every time a game ball wins in the starting winning opening 15, the value is decremented by one and displayed.

When a game ball wins in each winning opening, a predetermined number of game balls are paid out according to the type of each winning opening. In addition, the number of game balls that have won the variable prize ball device 11 while the variable prize ball device 11 is being opened is displayed by the winning number display 13.

As described above, the control of the gaming machine is performed by the switches 5,
23, 24, 25. For this reason, it is necessary to avoid situations in which information from each switch contains errors. Therefore, the switch input circuit described in this embodiment is particularly configured to be less susceptible to noise interference caused by electromagnetic waves such as radio waves easily generated by an electronic writer or the like.

FIG. 3 is a block diagram of a control circuit and peripheral circuits used in the pachinko gaming machine. Referring to FIG. 3, the control circuit of the pachinko gaming machine detects a game state according to a program for controlling various devices, and collects information necessary for game control (hereinafter referred to as “microcomputer”). ), An initial reset circuit 30 for applying a reset pulse to the basic circuit 27 when power is turned on, and a clock signal reset by the initial reset circuit 30 and supplied from the basic circuit 27. Periodically (for example, 1m
(per second), a periodic reset circuit 31 composed of a pulse dividing circuit for giving a reset pulse to the basic circuit 27
And the symbol stop switch 5, the right generation / destruction switch 23, the count switch 24, and the start port switch 2.
5. A photosensor 26 for detecting a stop position of the distribution device 7 (see FIG. 1), a switch circuit connected to the diode and for supplying a signal from a switch selected by an applied address signal to the basic circuit 27 And an address decode circuit 29 connected to the basic circuit 27 and the switch circuit 28 for decoding an address signal supplied from the basic circuit 27 and supplying the decoded signal to the switch circuit 28.
An LED circuit 34 as display means controlled by the basic circuit 27; a lamp circuit 35 controlled by the basic circuit 27 to drive and display lamps; a solenoid circuit 36; A jackpot information output circuit 37 for receiving jackpot information and outputting a jackpot information to the outside; a sound circuit 32 for receiving a sound signal from the basic circuit 27 and driving a speaker (not shown) to generate a game sound effect; A motor circuit 33 for controlling the motor 22 for driving the distribution device 7. The pachinko gaming machine further includes a power supply circuit 38 that is connected to an AC 24 V AC power supply and generates DC 5 V, 12 V, 21 V, and 30 V voltages.

The solenoid 21 shown in FIG. 2 is connected to the solenoid circuit 36. The side lamp 16, the windmill lamp 17, the chucker lamps 18, 19, and the like are connected to the lamp circuit 35. LED circuit 34
Has a symbol display 6a to 6c and a winning number display 13
, The remaining number display 14 and the decorative LED 20 are connected.

The basic circuit 27 and peripheral circuits shown in FIG. 3 operate as follows. The initial reset circuit 30 supplies an initial reset pulse to the basic circuit 27 at the same time when the power is turned on. The basic circuit 27 initializes itself in response to the initial reset pulse, generates a clock signal, and provides the clock signal to the periodic reset circuit 31. Periodic reset circuit 31
Divides the clock signal supplied from the basic circuit 27, generates a periodic reset pulse at predetermined time intervals, and supplies the reset pulse to the basic circuit 27. The basic circuit 27 repeatedly starts and executes a predetermined control program from its head each time a periodic reset pulse is given.

The game information given to the game machine control program in the basic circuit 27 is given via the switch circuit 28 from the symbol stop switch 5, the right generation / destruction switch 23, the count switch 24, the starting port switch 25 and the like. The basic circuit 27 responds to various kinds of control information given from the switch circuit 28, and operates as described above with reference to FIGS.
It controls a lamp circuit 35, a solenoid circuit 36, and the like.

The switch circuit 28 includes switches 5, 2
3 to 25, each of which includes a plurality of switch input circuits for converting the output of each switch into a pulse and providing the pulse to the basic circuit 27. FIG. 4 shows a switch input circuit 28A which is an example of the switch input circuit 28 according to the present invention.
ＣC are shown. Referring to FIG. 4A, a switch input circuit 28A according to the present invention includes a capacitor 40 having one electrode plate connected to the ground potential, a resistor 39 connected in parallel with the capacitor 40, and a Inverter 41 whose input is connected at contact A to a non-grounded electrode plate
And a resistor 42 connected between a contact B with the output of the inverter 41 and a + 5V power supply. The output of inverter 41 is also connected to the control circuit. The capacitor 40 and the resistor 39 form a time constant circuit.

The switch input circuit 28A has the configuration shown in FIG.
As shown in (A), the proximity switch 5 can be connected. Referring to FIG. 4A, the proximity switch 5 has a contact A
And + 12V power supply. Proximity switch 5
Is connected to the +12 V power supply, and the-terminal of the proximity switch 5 is connected to the contact A.

Referring to the lower part of FIG. 4A, in another switch input circuit 28B according to the present invention, one of the pole plates is connected to the ground potential, and the other
A capacitor 43 connected to the terminal and a resistor 43 connected in parallel with the capacitor 44 between the contact A and the ground potential.
A resistor 47 having one end connected to the contact A, one end on the contact A side of the resistor 43, and a contact C on the opposite side of the contact A of the resistor 47.
And the inverter 46 whose input is connected to the contact C.
8 and a resistor 49 having one end connected to the contact B on the output side of the inverter 48 and the other end connected to a + 5V power supply. The output of the inverter 48 is provided to the control computer. The capacitor 44, the resistors 43 and 47, the Zener diode 45, and the inverter 46 form a time constant circuit.

The Zener diode 45 is connected to the inverter 4
6 is to adjust the level of the input voltage of the inverter 46 so that the circuit 6 can operate properly. However, the zener diode 45 becomes unnecessary by appropriately selecting other circuit constants. It is possible.

Referring to FIG. 4 (B), a switch input circuit 28C according to an embodiment of the present invention in which the present invention is applied to a right generation / destruction switch 23 or a starter switch 25 comprising a microswitch is as follows. Having a configuration. The switch input circuit 28C includes a resistor 50 connected to one terminal of the switches 23 and 25 at a contact A, the other connected to a power supply potential of +12 V, and a resistor 51 connected at one end to the contact A.
One electrode plate is connected to the other end of the resistor 51 at the contact C, the other electrode plate is connected to the ground potential, and the capacitor 52 is connected to the contact C. The output of 53 includes a resistor 54 whose other end is connected to a power supply potential of + 5V. The output of the inverter 53 is provided to a gaming machine control computer. The other terminals of the switches 23 and 25 are grounded. The resistor 51 and the capacitor 52 form a time constant circuit.

FIG. 5 is a waveform diagram showing the operation of the switch input circuit 28A when the proximity switch 5 is connected to the switch input circuit 28A as shown in FIG.
Normally, the impedance of the proximity switch 5 is low. A current flows from the power supply + 12V to the ground potential via the proximity switch 5 and the resistor 39. The capacitor 40 has a resistor 39
The electric charge corresponding to the voltage between both ends is stored. Therefore, the potential of the contact A is at a high level as shown by time t1 in FIG. Inverter 41 inverts its input. Therefore, the potential of the contact B is at a low level as shown by time t1 in FIG.

Consider a case where a winning ball is passing through the passage hole of the proximity switch 5. As the switch impedance increases, the potential of the negative terminal of the proximity switch 5 decreases. The electric charge stored in the capacitor 40 is
9 is discharged. Therefore, the potential of the contact A is
As shown by time t1 to t2 in FIG. When the potential of the contact A becomes lower than the threshold voltage of the inverter 41, the output of the inverter 41, that is, the contact B
Is at a high level near time t2 as shown in FIG.

When the game ball completely passes through the through hole of the proximity switch 5, the potential of the negative terminal of the proximity switch 5 increases again. Assuming that the time when the game ball passes through the passage hole is t3, the charge starts to be accumulated in the capacitor 40, and the potential of the contact A slowly changes to the high level. When the potential of the contact A rises and exceeds the threshold value of the inverter 41, FIG.
As shown in (A), at time t4, inverter 4
1 returns to a low level. The control computer can detect that the game ball has passed the proximity switch 5 by detecting a pulse from the switch input circuit as shown in B of FIG. 5A.

Referring to FIG. 5B, a signal input from proximity switch 5 to switch input circuit 28A of FIG.
Consider a case where noise due to radio waves is mixed. Prior to this, until time t1, as shown in FIG. 5B, the potential of the contact A is at the high level and the potential of the contact B is at the low level, as usual. It is assumed that the noise due to the radio wave is mixed into the input signal at time t1, and this state continues until time t2. However, in this case, the potential of the contact A is deviated to a higher level than the normal state by the radio wave. Only the potential of the contact A, which is originally at a high level, is further increased. In order for the potential of the contact B to become high level, the contact A
Needs to be lower than a predetermined threshold value. Therefore, even when such noise is mixed in the input signal, the potential of the contact B remains at the low level. That is, when noise due to radio waves is mixed in the input signal, there is no possibility that this noise is erroneously determined to be due to a ball passing through the switch.

The switch input circuit 2 shown in FIG.
8A is further characterized in that disconnection of a used proximity switch can be easily detected. FIG.
The principle will be described below with reference to FIG.

The operation of the switch input circuit 28A when the proximity switch 5 is in a disconnected state will be described below. Referring to FIG. 5C, it is assumed that proximity switch 5 is disconnected at time t1. Since the contact A is connected to the ground potential via the resistor 39, the capacitor 40 is discharged after time t1. As shown at time t2 in FIG. 5C, the potential of the contact A becomes lower than the threshold value of the inverter 41. Therefore, as shown in B of FIG.
, That is, the potential of the contact B changes from the low level to the high level after time t2. Since the disconnection occurs in the switch, the potential of the contact A is kept at a low level, and the potential of the contact B is kept at a high level. By detecting that the output from the switch input circuit 28A is at the high level for a predetermined time or more, the gaming machine control computer can know that the proximity switch 5 has been disconnected.

Next, the operation of the switch input circuit 28B shown in the lower part of FIG. 4A will be described in the order of a normal winning, the entry of noise by radio waves, the disconnection of the switch 24, and the occurrence of a short circuit in the switch 24. Will be described.

Normally, the impedance of the switch 24 is low. Since the contact A is connected to a power supply of +12 V via the switch 24, its potential is high. Capacitor 44
Has accumulated therein charges corresponding to the potential of the contact A. The input of the inverter 46 is at a low level, and the potential of the contact C is at a high level. Therefore, the output of the inverter 48, that is, the potential of the contact B is at a low level (first potential).

When a game ball wins the switch 24, the impedance of the switch 24 increases while the game ball passes. Part of the electric charge stored in the capacitor 44 is discharged to the ground potential via the resistor 43, and the potential of the contact A decreases. As the potential of the contact A decreases, the potential of the contact C also decreases. When the potential of the contact C becomes equal to or lower than the threshold voltage of the inverter 48, the potential of the contact B becomes a high level. When the game ball passes through the switch 24, the potential of the contact B becomes low level again. That is, the potential of the contact B changes so as to output only one high-level (second potential) pulse to the game control computer in response to the game ball passing through the switch 24.

It is assumed that a signal input to the switch input circuit 28B contains noise due to radio waves or the like. In this case, similarly to the switch input circuit 28A shown in FIG.
Is initially at a high level. If the noise due to the radio wave is mixed in the input signal, the potential of the contact A only further increases. Therefore, normally, even if noise is mixed in the input signal, the input voltage of the inverter 48 does not fall below the threshold voltage of the inverter 48. Therefore, when noise due to radio waves or the like is mixed in the input signal, the potential of the contact point B does not become high level, and there is no possibility that an erroneous signal is given to the game control computer.

When a disconnection occurs, the occurrence of an abnormality can be known as follows. Normally, the contact A of the switch input circuit 28B is at a high level, and the contact B is at a low level. A predetermined charge is stored in the capacitor 44. If the switch 24 is disconnected, the electric charge stored in the capacitor 44 is discharged to the ground potential via the resistor 43. The potential of the contact A decreases. The potential of the contact A, that is, the contact C
Becomes lower than the threshold value of the inverter 48, the potential of the contact B becomes high level. In the case of disconnection, the potential of the contact A does not go to the high level again, so that the contact B remains at the high level. Therefore, when the ball detector is disconnected, the game control computer detects that the signal input from the switch input circuit 28B is at a high level for a predetermined time or more, and detects that some abnormality has occurred in the switch 24. Can be.

Referring to FIG. 6, consider a case where proximity switch 24 is short-circuited at time t1. Switch input circuit 2
Since the contact A of 8B is connected to the + 12V power supply via the switch 24, its potential gradually increases. The potential of the contact C also increases accordingly. When the potential of the contact A exceeds the threshold voltage between the Zener diode 45 and the inverter 46, the output of the inverter 46, that is, the potential of the contact C is inverted to a low level. As shown in FIG. 6B,
Since the input of the inverter 48 changes to the low level, the output of the inverter 48, that is, the potential of the contact B is changed at time t2.
Changes to a high level. Since the switch 5 is short-circuited, this state is maintained after time t2.
The gaming machine control computer can know that an abnormality has occurred in the proximity switch 5 by detecting that the output of the switch input circuit 28B is at a high level for a predetermined time or more. As described above, even when the proximity switch 5 is disconnected, the potential of the contact B is at the high level. Accordingly, the gaming machine control computer cannot know either the disconnection or the short circuit, but can know that some abnormality has occurred.

The switch 24 and the switch input circuit 28
B, has a ball detector that detects a hit ball that has entered a predetermined area provided in the game area, and outputs a signal of the first potential at normal times when the ball detector does not detect a ball. ,
A ball detecting means for outputting a signal of the second potential when the ball detector detects a ball is configured. The detection signal of the ball detecting means is input by the gaming machine control microcomputer, and a gaming control means for controlling a gaming state of the ball game machine is constituted. The ball detecting means continuously outputs the signal of the second potential when an abnormality occurs in the ball detector when a disconnection or a short circuit occurs, and the game control means outputs an input signal from the ball detecting means. Has a function of detecting that an abnormality has occurred in the ball detector based on the fact that the second potential has been kept for a predetermined period or longer.

Next, the operation of the switch input circuit 28C shown in FIG. 4 (B) will be described in the order of normal winning, when noise is mixed in by radio waves, and when a short circuit occurs.

Referring to FIG. 4B, the micro switches 23 and 25 are normally open. Therefore, as shown by time t1 in FIG.
Are at a high level, and the potential at the contact B is at a low level.

It is assumed that a game ball has passed the switches 23 and 25 at time t1. When the micro switches 23 and 25 are closed, the contact A is connected to the ground potential. Due to the swing of the micro switches 23 and 25, the connection between the contact A and the ground potential is intermittently repeated several times. During this time, the electric charge stored in the capacitor 52 is
Is discharged to the ground potential through time t1 to time t1 in FIG.
As shown by t2, the potentials of the contacts A and C decrease. When the potential of the contact C becomes lower than the threshold voltage of the inverter 53, the output of the inverter 53 is inverted, and the potential of the contact B becomes a high level. When the game ball completely passes through the switches 23 and 25 and the switches 23 and 25 are opened again, the capacitor 52 is charged by the +12 V power supply and the contact C
Rises again. The potential of the contact C is
Exceeds the threshold voltage, the potential of the contact B becomes low level again. In this way, one high-level pulse is given to the gaming machine control computer in accordance with the winning of the game ball.

Referring to FIG. 7B, consider a case where noise due to radio waves is mixed in an input signal. With the noise due to the radio wave, the potential of the contact A is shifted to the high level side as shown in FIG. Thus, the potential of the contact C further increases from the original high-level potential. Since the input voltage of the inverter 53 was originally higher than the threshold voltage, the output does not invert to the high level.
That is, a signal for detecting a passing ball is not supplied from the switch input circuit 28C to the gaming machine control computer, and malfunction due to radio waves can be prevented.

The switches 23 and 25 shown in FIG.
Is short-circuited. Referring to FIG. 7 (C),
It is assumed that a short circuit has occurred at time t1. Due to the short circuit, the potential of the contact A immediately becomes the ground potential. The charge stored in the capacitor 52 is discharged to the ground potential by short-circuiting the switches 23 and 25. Therefore, as can be seen from the graph C of FIG. 7C, the potential of the contact C gradually decreases. At time t2, the potential of the contact C becomes lower than or equal to the threshold voltage of the inverter 53, so that the output of the inverter 53, that is, the potential of the contact B is inverted to a high level. Since switches 23 and 25 are short-circuited, contacts A and C
Are kept at a low level, and the potential of the contact B remains at a high level. The gaming machine control computer can detect that a short circuit has occurred in the switch input circuit 28C by detecting that the signal from the switch input circuit 28C has been at a high level for a certain period of time or more.

As is clear from the above description, the input signal from the switch is once input to the time constant circuit, and the output of the time constant circuit is given to the output of the inverter. Normally, the input signal of the time constant circuit is regulated by a predetermined positive voltage, so that the output of the switch input circuit is always at a low level. In response to the winning of the game ball, a high-level pulse appears at the output of the inverter in response to the potential of the input signal temporarily becoming low. When noise due to radio waves is mixed into the input signal, the potential of the input signal only further increases, so that the input voltage to the inverter does not fall below the threshold value. Therefore, there is no fear that such noise caused by the radio wave is erroneously recognized as passing of the game ball and a detection signal is given to the gaming machine control computer.

The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

The ball detector detects a hit ball and detects a hit ball.
And output signals of different potentials. The inverter 4
1, 48 , the first electric potential when the ball detector is not detected.
(High level) signal is input and the ball detector detects
Sometimes a second potential (low level) is input,
A threshold between a first potential and a second potential;
When a signal of a first potential is input, a first level (low level) is input.
), And when the signal of the second potential is input,
Discussion game that outputs a second level (high level) signal
Means are configured. The game control micro mentioned above
The output signal of the logic gate means is generated by a computer
A game control hand which is inputted and controls a game state of the gaming machine
A step is configured. The logic gate means is as described above.
Disconnection or short circuit occurred in the ball detector
In the event of an abnormality, continuously output the second level signal
(FIG. 5 (C), FIG. 6). As described above, the game control
Means for inputting a signal from the logic gate means for a predetermined period;
Based on the above second level,
It detects that an abnormality has occurred in the ball detector. I mentioned earlier
Thus, when the jamming radio wave is emitted, the output signal of the ball detector is shifted to the first potential side .

Effects of the Invention According to the present invention as set forth in claim 1, can be detected game control unit when an abnormality occurs a disconnection or short circuit occurs in the ball detector, moreover, as a detection method, the logic gate
The input signal from the second level means for a predetermined period or more.
In order to detect an abnormality based on the input period length of the input signal that the input signal is at a low level , the potential level of the input signal at which the input signal is different from the first level and the second level is determined. And it is possible to easily detect the disconnection or short-circuit abnormality. And nothing
Since the output signal of the ball detector shifts to the first potential side when noise due to linear radio waves is mixed , the logic gate means
Since the output signal is maintained at the first level and does not reach the second level , the signal of the second level is not output from the logic gate means, and erroneous detection due to jamming radio waves can be prevented as much as possible. Becomes

[Brief description of the drawings]

FIG. 1 is a plan view of a game machine of a pachinko game machine which is a ball game machine according to an embodiment of the present invention.

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

FIG. 3 is a circuit block diagram showing a circuit for controlling the gaming machine shown in FIG.

FIG. 4 is a circuit diagram showing a connection example of a switch input circuit according to the embodiment of the present invention.

5 is a waveform chart showing an operation of the switch input circuit 28A shown in FIG.

6 is a waveform chart showing an operation of the switch input circuit 28B shown in FIG.

7 is a waveform chart showing an operation of the switch input circuit 28C shown in FIG.

[Explanation of symbols]

 5 Symbol stop switch (proximity switch) 23 Right generation / destruction switch (micro switch) 24 Count switch (proximity switch) 25 Starter switch (micro switch) 28A-C switch input circuit 39,43 resistor 40,44,52 capacitor 41 , 48,53 Inverter

Claims (1)

(57) [Claims] 1. A Yu TECHNICAL machine that Re <br/> performed game is implanted punch ball in the game area, to detect the hitting balls, or receive different between the detection time and the non-detection period potential
A ball detector that outputs a signal, and a signal of a first potential is input when the ball detector is not detected,
A signal of a second potential is input at the time of detection of the ball detector,
A threshold between said first potential and a second potential,
When the signal of the first potential is input, the signal of the first level is
Output the second level when the signal of the second potential is input.
And logic gate means for outputting a signal, is input the output signal of the logic gate means, and a game control means for controlling the game state before Ki遊 skill machine, said logic gate means, said ball detector In the event of a disconnection or a short circuit, the signal of the second level is output continuously, and the game control means keeps the input signal from the logic gate means at the second level for a predetermined period or more. Based on this, it is detected that an abnormality has occurred in the ball detector
However, when noise due to radio waves is mixed, the output of the ball detector
Wherein the signal is deviated to the first potential side .
Yu technique machine.