JPH0363387B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applicable to control circuits for pachinko winning machines, especially when a switch for detecting a pachinko ball and controlling the winning machine malfunctions or is removed illegally. This relates to something that prevents malfunctions of the prize winning device when the prize winning device is

<Prior art> In a conventional pachinko machine, when a pachinko ball enters a specific winning hole, the winning ball is detected by a first detection means such as a switch, and
A special game means has been proposed that controls other winning devices and the like to shift to a special game based on a signal from a detection means. In this case, the second detection means detects balls that enter the winning device during the special game, and when this detection value reaches a predetermined value, for example 10, the winning device is changed to a disadvantageous state for players who have difficulty accepting balls. (reset) to give variety to pachinko games, and to balance the profits between players and game parlors.

<Problems to be Solved by the Invention> However, according to the conventional control circuit of the winning device of a pachinko machine, if the second detection means breaks down or is illegally removed by the player, the winning device cannot be activated. Even if a ball hits a prize, it will not be counted, so the prize-winning device will be continuously changed to a state where it can easily accept batted balls, which not only defeats the original purpose of the prize-winning device, but also causes great damage to the gaming parlor. . Also, if a regulation is imposed on a pachinko machine, it will be a violation of the regulation.

Therefore, it is an object of the present invention to prevent a player from receiving a ball when the winning device has difficulty accepting a ball or does not receive a ball at all if the switch that detects a winning ball from the winning device malfunctions or is illegally removed. The above-mentioned drawbacks are solved by providing an abnormality detection means for converting the state into an unfavorable state.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes a first detection means for detecting a pachinko ball that enters from a predetermined winning opening, and a first detection means for detecting a pachinko ball that enters from a predetermined winning opening, and a first detection means based on a signal from the first detection means. A special game means capable of creating a first state disadvantageous to the player and a second state advantageous to the player, a second detection means for detecting a batted ball winning a prize during the second state, and the second detection means and an abnormality detecting means based on a voltage change corresponding to a current change in the second detecting means. The special gaming means is set to a reset state based on the voltage output when the current becomes zero or close to zero.

<Function> When an accident such as a short circuit or disconnection occurs in the second detection means, the abnormality detection means is activated based on the current change of the second detection means, and the special game means is activated based on the output of the abnormality detection means. Reset.

<Example> Hereinafter, the present invention will be described with reference to an example shown in the drawings.

FIG. 1 is a circuit diagram showing an embodiment of the control circuit of the pachinko winning machine according to the present invention, in which the first detection unit sends a signal when a ball hits a winning opening provided on the game board of the pachinko machine. It has a first switch as means 1. The first detection means 1 described above may be configured to be normally open and generate a close signal when a batted ball is detected, or may be configured to be normally closed and generate an open signal when a batted ball is detected.

The first detection means 1 operates a special game means that creates a first state disadvantageous to the player and a second state advantageous to the player. This special game means includes a winning device that can be converted into a first state that is disadvantageous to players who cannot or have difficulty hitting balls, and a second state that is advantageous to players who can easily hit balls, and this winning device. It consists of a driving solenoid 2, etc., and the solenoid 2
is excited to convert the prize-winning device into a second state advantageous to the player who is more likely to accept the hit ball.

The first switch of the first detection means 1 is for controlling the voltage between the resistor 3 and the Zener diode 4 in the special gaming means, and when the first switch 1 is turned on now, this voltage is at the same level as the ground voltage. becomes "0", and this "0" signal, in other words, a low level signal, is supplied to the terminal 7 of the flip-flop 6 via the inverter and OR circuit 5, and the flip-flop 6 is thereby set in the set state. A high level signal, that is, a signal of "1" is output from the output terminal 8, which turns on the transistor 9 and energizes the solenoid 2, and the above-mentioned award device controlled by the solenoid 2 prevents the ball from entering. The first state, which is disadvantageous to players who have a very difficult time hitting the ball, is converted to the second state, which is advantageous to players who can easily hit the ball. Also, at this time, the lamp 10 is turned on to notify the player that the player is in an advantageous situation.

In FIGS. 1 and 2, 11 is a second switch as a second detection means, which is turned on when it detects a batted ball entering the above-mentioned award device, one end of which is grounded, and the other end of which is connected to the control circuit 12. is connected to terminal 13 of. A resistor 14 is connected in parallel to this second detecting means 11, and this resistor 14 is mechanically integrated with the second detecting means 11, for example, the second detecting means 11.
When the detection means 11 is removed from the terminal 13, the resistor 14 is also removed together. On the other hand, the voltage at the connection point between the resistor 15 and the Zener diode 16 is supplied to the terminal 13 on the special gaming means side, and this voltage is applied when the second switch 11 is turned on.
It changes between "0" and "1" as it turns off. This voltage is supplied to the input terminal 20 of the NAND circuit 19 via resistors 17 and 18. Incidentally, capacitors 21 and 22 are connected between the connection point between the resistor 17 and the resistor 18 and the ground, and between the connection point between the resistor 18 and the input terminal 20 and the ground.

Further, 23 in FIG. 1 is a PNP type transistor, whose emitter is connected to the power supply, whose base is connected via a resistor 24 to the connection point between the resistor 15 and the Zener diode 16, and whose collector is the resistor 2.
5 and is connected to the other input terminal 26 of the NAND circuit 19. Note that a capacitor 25a is connected in parallel to the resistor 25.

The collector voltage of the transistor 23 supplied to the input terminal 26 of the NAND circuit 19 changes in relation to the resistor 14. That is, the base current of the transistor 23 is
resistor 1 such that the collector voltage, ie the voltage supplied to the input terminal 26 of the NAND circuit 19, is greater than the threshold voltage for operating the NAND circuit 19.
Sizes such as 4, 24, 25, etc. are set in advance. Here, when the resistor 14 is removed together with the second detection means 11, the base current hardly flows, so that the collector voltage of the transistor 23 becomes small and the voltage supplied to the input terminal 26 of the NAND circuit 19 becomes The value is less than the stock hold voltage of No. 19, that is, "0".

The voltage from the output terminal of the NAND circuit 19 is supplied to the terminal 7 of the flip-flop 6 via the OR circuit 5, and also to the input terminal of the counter 27. The reset input terminal 28 of the counter 27 is supplied with the inverted output signal from the flip-flop 6.

The counter 27 counts the output pulses of the NAND circuit 19, and when this count reaches, for example, 10, it outputs a signal of "1" from the terminals 29a and 29b, and therefore a signal of "1" is output from the AND circuit 30. Therefore, a signal of "0" is output from the NOR circuit 31, and the flip-flop 6 is reset by this signal. Note that the input terminal 32 of the NOR circuit 31 is supplied with a signal from a power reset circuit consisting of a capacitor 33 and a resistor 34, and when the power is turned on, the power reset circuit outputs "1" to the terminal 32. '' signal is supplied, thereby initializing the flip-flop 6 to the reset state. When charging of the capacitor 33 is completed, the voltage at the terminal 32 becomes "0" and is maintained in this state thereafter. Therefore, the AND circuit 30
When a signal of "1" is output from the terminal 32, the signal at the terminal 32 is "0", so the output of the NOR circuit 31 becomes "0", and the flip-flop 6 is reset as described above.

In the above embodiment, the control circuit 12 and the like are constructed by combining individual circuit elements, but the control circuit can also easily be constructed using an integrated circuit in which a plurality of elements are arranged on a single substrate. It is.

Next, the operation of the control circuit of the pachinko winning machine configured as described above will be explained below.

First, when the first detection means 1 issues a signal while the second switch 11, which is the second detection means, is in a normal state, the solenoid 2 of the special game means is energized. As a result, the winning device (not shown) converts the first state, which is disadvantageous to players who cannot or cannot easily hit the ball, to the second state, which is advantageous to players who easily accept the ball, and the lamp 10 is turned on. to notify the conversion of the winning device. When a ball hits the winning device in the second state, the second switch 11 that detects the ball is turned on every time a ball is detected.
The voltage at the terminal 13 momentarily becomes "0".

On the other hand, since a voltage higher than the threshold voltage is supplied to the terminal 26 of the NAND circuit from the transistor 23 side, the output of the NAND circuit 19 momentarily becomes "1" at this time, and such a pulse is generated by the counter. 27. The counter 27 counts each time the second switch 11 detects a batted ball and turns on. When the count value reaches a set value, for example 10, a signal of "1" is output from the AND circuit 30, and the output side of the NOR circuit 31 A signal of "0" is output from the flip-flop 6, and the flip-flop 6 is reset. Therefore, solenoid 2 is demagnetized and lamp 10
goes out. Therefore, the prize-winning device changes the second state to the first state in which the ball is difficult to hit or does not hit at all.

Here, when the solenoid 2 of the special game means is energized and the winning device is converted to the second state in which it is easy to accept a batted ball, the second detection means 11 is removed from the terminal 13, and therefore the resistor 14 is also integrated. When the input terminal 26 of the NAND circuit 19 is removed based on the transistor 23, the voltage at the input terminal 26 of the NAND circuit 19 becomes a low level below the threshold voltage, that is, a signal close to "0".
It holds "1" regardless of the signal supplied to the flip-flop, and therefore, this "1" signal is supplied to the terminal 7 of the flip-flop 6 via the OR circuit 5.
The flip-flop 6 is brought into a reset state, and the winning device is transformed into a state in which it is difficult to accept a batted ball. Furthermore, if a failure occurs such as breakage of the lead wire on the terminal 13 side, the flip-flop 6 is similarly reset and the winning device is transformed into a state in which it is difficult to accept a batted ball.

On the other hand, if the terminal 13 and the ground are improperly short-circuited using a conductive wire or the like, or if the second detection means 11 fails and the switch cannot be turned back from on to off, the signal at the terminal 13 is “0”
As a result, the output signal of the NAND circuit 19 becomes "1", the flip-flop 6 is reset as described above, and the winning device is transformed into a state in which it is difficult to accept a batted ball.

Therefore, a disconnection failure of the second switch lead wire,
Alternatively, fraud based on removing the second switch can be prevented.

Further, in the present invention, as shown in FIG. 2, the second detection means 11 is composed of two switches 11a and 11b,
These detection means 11a, 11
Even if the resistor 14 connected in parallel to the resistor 14 is incorporated, it is possible to obtain the effect of preventing fraud due to disconnection of the lead wire of the second detecting means or removal of the second detecting means. Note that it is also easy to further provide a plurality of second detection means.

Although the present invention has been described above with reference to the illustrated embodiments, the present invention is not limited to the above-described embodiments, and can be implemented as appropriate without changing the configurations set forth in the claims. For example, in the embodiment, the solenoid of the winning device is directly controlled by the special game means, but a special game is performed in the special game means based on a signal from the first detection means, and the winning device is activated based on the result of this special game. It may be converted into two states. Further, it is also easy to replace part of the control circuit according to the present invention with the functions of a microcomputer and control it in a software manner. For example, when the second detection means continuously sends out a detection output for a predetermined period of time or more, the special game means can be reset.

<Effects of the Invention> As explained above, the present invention includes a first detection means for detecting a pachinko ball that enters from a predetermined winning opening, and a first detection means disadvantageous to the player based on a signal from the first detection means. special game means capable of creating a second state advantageous to the player; a second detection means for detecting a batted ball winning a prize during the second state;
It is composed of a reset means for ending the second state based on a signal from the detection means, and an abnormality detection means based on a voltage change corresponding to a current change in the second detection means, and the abnormality detection means is a second detection means. Since the special gaming means is set to a reset state based on the voltage output when the current in the terminal becomes zero or close to zero, there is no possibility of breakage of the lead wire of the second detecting means or removal of the second detecting means. It is possible to prevent fraud based on such matters.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing one embodiment of the control circuit for the pachinko winning device according to the present invention, and FIG. 2 is a diagram showing another embodiment of the control circuit for the pachinko winning device according to the present invention. 1... a first switch as a first detection means, 6
...a flip-flop constituting the reset means,
11...Second switch as second detection means, 1
4...Resistor provided in the second detection means, 23...Transistor constituting the abnormality detection means.

Claims (1)

[Claims] 1. A first detecting means for detecting a pachinko ball that enters from a predetermined winning opening, and creating a first state disadvantageous to the player and a second state advantageous to the player based on a signal from the first detecting means. a second detection means for detecting a winning ball during the second state; a reset means for terminating the second state based on a signal from the second detection means; and abnormality detection means based on a voltage change corresponding to a current change in the detection means, and the abnormality detection means detects the special game means based on the voltage output when the current in the second detection means becomes zero or close to zero. 1. A control circuit for a pachinko winning machine, characterized in that the control circuit sets the machine to a reset state.