JPS6325791B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and device for detecting fraud in a pachinko ball lending machine, and particularly to ensuring detection of fraud by electrical means.

As is well known, in normal pachinko parlors,
Because it is necessary to install ball lending machines between relatively narrow pachinko machines in a row of pachinko machines, there is a constraint that ball lending machines must be narrow in width and approximately the same height as pachinko machines. The structure cannot be made too complicated.

Therefore, in general, a coin detector configured as a micro switch is installed in the coin guide gutter communicating with the coin slot, and the pachinko ball supply mechanism is operated based on the detection output. It is designed to discharge.

In this way, the pachinko ball is ejected immediately when the coin detector is turned on, making it susceptible to fraud. It was also common for pachinko balls to be ejected illegally by operating the machine.

Therefore, the present invention proposes a fraud detection method and device that can electrically reliably detect and issue an alarm when such fraud occurs.

An example of the present invention will be described in detail below with reference to the drawings.
An embodiment of a pachinko ball rental machine 1 to which the present invention can be applied has a configuration shown in FIG.

Reference numeral 2 denotes a pachinko ball passing gutter provided between the upper side plate 4 position of the narrow case 3 and the rental ball discharging device 6 provided on the front plate 5, in which pachinko balls supplied from the pachinko ball supply gutter 7 The ball is made to flow down by its own weight.

A pachinko ball supply section 10 is provided in the middle of the passageway 2, and discharges a predetermined number (for example, 25) of pachinko balls to a rental ball discharging device 6 for each inserted coin. The specific configuration of the pachinko ball supply section 10 is as follows. That is, the passing gutter 2 is provided with a star wheel 11 for counting passing balls, which has, for example, 10 notches on its outer circumference so that the notches protrude into the gutter 2. 10 pachinko balls are discharged into the rental ball discharging device 6 while counting each time the ball is played. This star wheel 11
is connected to the rotating cam 13 via the reduction gear 12, and when the star wheel 11 counts 25 pachinko balls and rotates two and a half times, the rotating cam 13
It is designed to rotate only once.

A thin groove-shaped cam surface 14 is provided on the cam surface of the rotating cam 13, and the lever 1 is attached to this groove-shaped cam surface 14.
When the claw 16 provided at the tip of the rotating cam 13 falls down, the rotating cam 13 is locked by the lever 15 and cannot rotate. At this time, the star wheel 11 becomes unable to rotate, thereby stopping the ejection of pachinko balls to the rental ball ejector 6.

The lever 15 is rotatably supported by a fixed shaft 17, and is biased by a spring 18 provided at one end so as to press the claw 14 at the other end against the cam surface of the rotating cam 13, thus rotating. Cam 13
When the pawl 16 falls into the grooved cam surface 14 of the rotary cam 13, the rotary cam 13 is stopped at this predetermined position.

For example, at the end of the lever 15 on the spring 18 side, there is an operating rod 22 of a plunger 21 for starting pachinko ball supply.
is connected, and when the solenoid is energized, by rotating the lever 15 clockwise against the spring 18, the pawl 16 of the lever 15 is separated from the rotating cam 13, and thus the rotating cam 13 and the star wheel 11 is brought into a free rotation state, the pachinko ball discharge stop state is switched to the supply state.

This pachinko ball supply state is detected by a pachinko ball supply detector 25 having a micro switch configuration, for example, and a detection output _K1 is sent out. This pachinko ball supply detector 25 is provided facing the rear side of the plunger 21, and its operating rod 22 is connected to the spring 1.
When the plunger 21 is energized and the operating rod 22 is retracted, the plunger 21 is turned on by its rear end.

The above is the configuration of the pachinko ball supply section, and the coin receiving mechanism portion is configured as follows.

A coin 32 inserted into the coin slot 31 is guided to the identification device 3 through the guide gutter 33, and after being judged by the identification device 34 as to whether it is genuine or not, the coin 32 is inserted into the coin slot 31 and is then inserted into the designated coin (for example, a 100 yen coin). If any coins are found, they are stored in a safe 36 through the take-in gutter 35 or dropped onto a conveyor installed along the line of pachinko machines, and if they are invalid, they are returned through the return gutter 37 to the return slot 3.
It is designed to be returned on the 8th.

However, the coin intake confirmation section 40 is installed in the intake gutter 35.
is provided, thereby allowing the coin 32 to enter the intake gutter 35.
The pachinko ball supply unit 10 is driven each time the pachinko ball supply unit 10 is checked to confirm that the balls have been fed one by one.
Thereafter, the coins are taken one by one into the safe 36 or dropped onto a conveyor. Intake gutter 35
is provided with a take-in rotator 43 which has a lower protruding piece 41 that protrudes largely into the gutter 35 and an upper protruding piece 42 that protrudes slightly into the gutter 35 at its lower and upper ends, respectively. It is rotatably connected to a fixed shaft 45 by a connecting vertical piece 44. However, the rotator 43 is normally a vertical piece 44.
The lower protruding piece 41 is in a state of being pulled clockwise by a spring 46 connected to the upper end thereof to protrude into the take-in gutter 35, and at this time, the coins fed into the take-in gutter 35 are pulled clockwise. 32. Here, the vertical piece 44 is made approximately equal in diameter to the coin 32, and thus holds the lowermost coin 32 between the lower protruding piece 41 and the upper protruding piece 42.

A coin detector 47 configured as, for example, a micro switch is disposed above the lower protruding piece 41 in this state, and is adapted to send out a detection output K ₂ when the coin 32 is held by the rotator 43. There is.

On the other hand, an operating rod 49 of a coin-taking plunger 48 is connected to the lower end of the vertical piece 44, and when the solenoid is energized, the rotor 43 is rotated counterclockwise against the spring 46. . At this time, the lower protruding piece 41 escapes outward from the take-in gutter 35 and releases the held coin 32 downward to the safe 36.
Store it in. However, since the coin 32 fell downward, the coin detector 47 outputs a detection output K ₂
Returns to the state of not sending. At the same time, the upper protruding piece 42 and the lower protruding piece 41 remove the coin 32 that has been held until now, and the coins stacked above it (this is what happens when a large number of coins are inserted in succession). This holds the upper stack of coins.

From this state, when the plunger 48 is demagnetized and the rotor 43 is returned to the clockwise rotating position by the spring 46, the upper protruding piece 42 retreats outward from the intake gutter 35, and at the same time the lower protruding piece 41 protrudes into the intake gutter 35, and thus the stacked coins 32 move from the upper protruding piece 42 position to the lower protruding piece 41.
falling upwards and thus the coin 32 on the bottom layer
is newly held between the lower protruding piece 41 and the upper protruding piece 42.

In this manner, the rotator 43 separates the coins 32 that have been sequentially inserted into the take-in gutter 35 one by one and stores them in the safe 36 or drops them onto the conveyor below.

The pachinko ball supply section 10 and the coin acceptance confirmation section 40 shown in FIG. 1 are connected by a control circuit 51 shown in FIG.

Coin intake confirmation unit 40 for DC power supply 52
Pachinko ball supply unit 1 via coin detector 47
The solenoid of the plunger 21 for starting pachinko ball passage of No. 0 is connected, and similarly the solenoid of the coin taking plunger 48 of the coin taking confirmation part 40 is connected via the pachinko ball supply detector 25 of the pachinko ball supply part 10. has been done.

In the above structure, when the coin 32 is not inserted, the lever 15 is in a state where the claw 16 is thrust into the grooved cam surface 14 of the rotary cam 13 and the wheel 11 is stopped and locked. Therefore, the pachinko balls in the passageway 2 are prevented from falling by the teeth of the wheel 11.

In this state, when a coin 32 is inserted from the coin slot 31 at time t ₁ in FIG. It is held by the mover 43. When the coin detector 47 detects this and sends out a detection output _K2 (FIG. 3A), the plunger 21 for starting pachinko ball supply is energized, thereby rotating the lever 15 clockwise. Therefore, when the pawl 16 comes off the cam surface 14, the wheel 11 becomes rotatable, and the pachinko balls flow down to the ejector 6 while rotating the wheel 11.

When the pachinko ball supply detector 25 detects that the plunger 21 has operated in this way and its detection output K ₁ turns on at time t ₂ after time T ₁ path (FIG. 3B), coins are taken in. The solenoid of plunger 48 is energized. Therefore, the rotor 43 rotates and releases only one coin 32 held into the safe 36. At this time, the coin detector 47 returns to off at time t ₃ when time T ₂ has elapsed from time t ₂ (third
Figure A) Plunger 21 for starting pachinko ball supply
is demagnetized, whereby the claw 16 of the lever 15 comes into sliding contact with the cam surface 19 of the rotary cam 13 other than the grooved cam surface 14 by means of the spring 18.

Eventually, when 25 pachinko balls pass the wheel 11 position, the grooved cam surface 14 comes to the pawl 16 position, and the pawl 16 falls into this cam surface 14 by the spring 18, thus locking the rotation of the cam 13. . At this time, the pachinko ball supply detector 25 is turned off at time t ₄ after time T ₃ has elapsed from time t ₃ (FIG. 3B), and the coin taking-in plunger 48 is demagnetized. Therefore, the rotor 43 is rotated to the clockwise rotation position by the spring 46, and a new coin 32 is received and held in the rotor 43.

In this way, one cycle of confirming the intake of one coin and supplying this number of pachinko balls is completed, and thereafter, this cycle of operations is repeated every time the coin detector 47 is turned on.

In addition, in FIGS. 1 and 2, 53 is a pachinko ball detector provided on the upper side of the wheel 11 of the passage gutter 2, and 54 is a coin stopper provided in the coin slot 31. Therefore, when it is detected that there are no pachinko balls above the wheel 11, the coin stopper 54 is operated to prevent coins from being inserted into the slot 31. Note that 55 is an indicator lamp indicating that the ball lending operation is in progress.

In addition to the above configuration, in the present invention, a fraud detection circuit 61 is provided in conjunction with the control circuit 51 shown in FIG.

As shown in FIG. 4, the fraud detection circuit 61 receives the detection output K ₂ (FIG. 3A) of the coin detection switch 47 at a terminal 62, and detects the first fraud detection circuit 63 having a timer circuit configuration based on the rising edge of the detection output K 2 (FIG. 3A). trigger. This timer normally measures the time from when the coin lending machine accepts the coin until it is taken into the safe, that is, at the time shown in Figure 3.
It is set to the time from t ₁ to _{t 3} (=T ₁ +T ₂ ), and when the detection output K ₂ continues to arrive for more than this time, it is determined that a fraudulent act has occurred and the output timer 64 is triggered.

This is because the coin detector 47 continues to send out the detection output K2 for longer than the normal operating time, and the coin detector 47 continues to send out the detection output _K2 from the coin slot 31 to the identification device 3.
This is because there is a high possibility that a fraudulent act is being carried out, for example, by inserting a metal wire through the coin detector 47 to activate the coin detector 47.

In addition, as the setting value of the timer 63, the time T ₁ (that is, the time from when the detector 47 detects the acceptance of a coin until the plunger 21 operates) is set to approximately
The time T ₂ (i.e. plunger 2
After 1 operates, the coin moves from the rotating element 43 to the safe 3.
6) is about 80 mS, and select it to be about 100 mS.

The output timer 64 is triggered when it receives the fraudulent act determination output, and immediately sends out an alarm output AL via the output relay 65. If the fraudulent act is stopped after this time limit (for example, about 30 seconds) has elapsed, the sending of the alarm output is automatically resumed. However, if the fraudulent activity continues at the time of this return, the timer 64 will be triggered again, and the alarm will continue to be sent out.

Further, the fraud detection circuit 61 has a second fraud determination circuit 66 having a two-input AND circuit configuration, and inverts the coin detection output K ₂ received at the terminal 62 in a negation circuit 67, and its inverted output ₂ (third C) is applied to the determination circuit 66 as a first condition signal. In addition, the fraud detection circuit 61 receives the detection output K ₁ of the pachinko ball supply detector 25 at the terminal 69 and supplies it to the reference signal formation circuit 68 having a timer configuration, and the output SD is sent to the determination circuit 66 to determine the second condition. Give as a signal. However, the reference signal forming circuit 68 outputs the detected output K ₁ at time t ₂
The third pulse is triggered at the rising edge of , and falls at the elapsed time point t _' 3 of a time limit T ₄ that is slightly shorter than the time from t ₂ to t ₃ (=T ₂ ), for example, when T ₂ is 80 mS, for example, about 70 mS). A reference signal SD as shown in Figure D is generated.

In this way, the second fraud determination circuit 66 detects that the actual arrival time of the detection output _K2 of the coin detector 47 is shorter than the normal scheduled operating time ( _T1 = 100mS) and is earlier than the falling edge of the reference signal SD. When I fell down,
The output timer 64 is triggered when a fraudulent act occurs. To do this, coin detector 4
The reason why the detection output K ₂ of 7 is abnormally short is that the coin detector 47 was once fraudulently operated from the coin slot 31 with a metal wire, and the plunger 21 for starting pachinko ball supply was driven. This is because the coin detector 47 is considered to have become inoperable earlier than normal.

For example, normally, since a coin is held in the rotator 43, no fraud determination output is output, but in the case of fraud, a fraud determination output is output because no coin is held.

In addition, the second fraud determination circuit 66 detects that the pachinko ball supply detector 25 detects the detection output K ₁ even though the detection output K ₂ from the coin detector 47 has not arrived.
When this occurs, the output timer 64 is triggered as a fraudulent act. The reason why this is done is that if the detection output K ₁ arrives from the pachinko ball supply detector 25 even though no coin is held in the rotator 43, the lever 15 can be activated using a metal wire from the pachinko ball ejector 6, for example. This is because there is a high possibility that the rotation operation is being performed illegally.

Furthermore, the fraud detection circuit 61 is the output of a safe sampling detector 71 (FIG. 1) provided in connection with the safe 36.
K ₃ is received via the terminal 72 and the output timer 64
trigger. If the safe is illegally removed in this way, an alarm can be immediately raised. However, if the intake gutter 35 faces the collection conveyor installed inside along the row of pachinko machines, the detector 7
1 is unnecessary.

As described above, according to the present invention, when the actual arrival time of the detection output of the coin detector is longer or shorter than the scheduled time, this is detected as fraud, so that the coin detector 47 can be detected as fraudulent. To be able to reliably detect and alert you to acts of unauthorized manual operation. Incidentally, although the operating time of a machine is usually approximately constant, it is almost impossible to match the manual operation time to the scheduled time, which makes it possible to clearly determine fraudulent activity.

Further, according to the present invention, the pachinko ball supply detector 2
5 can be reliably determined in relation to the presence or absence of the detection output _K2 from the coin detector 47.

Therefore, according to the present invention, the present invention can be implemented without changing the mechanical structure of any ball lending machine equipped with the detectors 25 and 47, and fraudulent activity can be reliably determined. .

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing a pachinko ball rental machine to which the present invention can be applied, Fig. 2 is a schematic connection diagram showing its control circuit, and Fig. 3 is a signal waveform diagram for explaining its operation. , FIG. 4 is a schematic connection diagram showing an example of a fraud detection circuit according to the present invention. 1... Ball rental machine for pachinko balls, 2... Pachinko ball passing gutter, 6... Ball rental ejector, 10... Pachinko ball supply section, 21... Plunger for starting pachinko ball supply, 25... Pachinko ball Supply detector, 34...
Identification device, 35...Intake gutter, 36...Safe, 40
... Coin intake confirmation section, 47 ... Coin detector,
48... Plunger for taking in coins, 61... Fraud detection circuit, 63... First fraud determination circuit, 64...
...Output timer, 66...Second fraud determination circuit,
68...Reference signal forming circuit, 71...Safe extraction detector.

Claims (1)

[Scope of Claims] 1. A coin inserted from the slot of a pachinko ball rental machine is received and held once, and a coin detector detects the holding state of the held coin until it falls. A planned number of pachinko balls are started to be supplied to the discharge port based on the coin acceptance confirmation unit and the detection output of the coin detector, and the supply state of the pachinko balls is detected by the pachinko ball supply detector. and a pachinko ball supply section configured to do so, and the coin acceptance confirmation section drops the held coin when a detection output is obtained in the pachinko ball supply detector, and When the scheduled number of pachinko balls has been supplied to the pachinko ball supply detector and the pachinko ball supply detector no longer receives a detection output, the system returns to a state in which it can accept and hold the next coin. The time from when a coin detector detects a coin detector outputs a detection output to when the coin detector no longer outputs a detection output becomes longer or shorter than the normal operating time of the coin lending machine. A method for detecting fraud in a pachinko ball rental machine, characterized by determining whether a fraud has occurred based on the following. 2 Coin intake confirmation in which a coin inserted from the slot of a pachinko ball rental machine is accepted and held once, and the coin holding state is detected by a coin detector until the held coin falls. and a pachinko ball supply unit configured to start supplying a predetermined number of pachinko balls to the discharge port based on the detection output of the coin detector, and to detect the supply state of the pachinko balls using a pachinko ball detector. The coin acceptance confirmation unit causes the held coin to drop when a detection output is obtained from the pachinko ball supply detector, and causes the pachinko ball supply unit to supply the planned number of pachinko balls. When the above-mentioned pachinko ball supply detector no longer receives a detection output after the above-mentioned pachinko ball supply detector has finished, it returns to a state in which it can accept and hold the next coin.Furthermore, there is also a coin detection device that detects the state in which the above-mentioned coins are held under normal conditions. The arrival time from when a detection output is obtained to the coin detector until the detection output from the coin detector is no longer obtained is set as a time limit, and when a detection output exceeding this time limit arrives from the coin detector, fraud is determined. A first determination circuit having a timer configuration that sends out an output and a reversal detection output of a coin detector that detects the holding state of the coin are received as first condition inputs, and the supply state of the pachinko ball is detected. The detection output of the pachinko ball supply detector is received as the second condition input, and the
1. A fraud detection device for a pachinko ball lending machine, comprising a second determination circuit configured as an AND circuit configured to send out a logical product output of condition inputs as a fraud determination output. 3. The fraud detection device in a pachinko ball rental machine according to claim 2, wherein the output of the safe extraction detector is used as the third fraud determination output.