JPH0226538Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a fraud detection device in a ball lending machine.

(Prior Art) Conventionally, as related to this type of device, for example, there is a device for preventing abnormal ball rental outflow of a ball lending machine described in Japanese Patent Application Laid-open No. 54-54979, and a device for preventing abnormal ball rental outflow of a ball lending machine described in Japanese Patent Application Laid-Open No. 54-51899. There are also automatic ball lending machines.

These conventional devices detect falling coins at two locations, upper and lower, and detect fraud based on the time difference.

(Problem that the invention aims to solve) However, since the conventional device detects the falling coins as they are without controlling the falling speed of the coins ejected from the coin sorting device, there is a difference in the time between the two points detected at the top and bottom for each coin. Considerable deviations and widths occur.

Therefore, the fraud detection device is likely to malfunction.

(Means for Solving the Problems) Therefore, in order to solve the above technical problems, a replenishing device is operated in a coin cutter that drops continuously inserted coins one after another every time the replenishing device finishes its operation. a first detection arm that is activated by a locked coin when the device is in use; and a second detection arm that is activated when the locked coin falls after the replenishment device has finished operating. and a first detection arm and a second detection arm are disposed in close proximity to each other, and an alarm circuit that is closed after the operation of the first detection arm is activated when the second detection arm is activated. We have devised a fraud detection device for ball lending machines that is configured to reset at the following times.

(Example) The embodiments shown in the drawings will be described below.

First, for the convenience of explanation, I will explain the entire ball rental machine. As shown in the schematic diagram of FIG.
Below this flow gutter, a pachinko ball constant supply device 2, a coin flow gutter 4 connected to a coin input slot 3, a coin sorting device 5, and a coin cutting device 6 are arranged vertically in this order.

Reference numeral 7 is a switch for checking the presence or absence of balls installed in the pachinko ball flow gutter 1, and when there are balls in the flow gutter, the lamp 8 does not light up and the shutter 9 of the coin slot 3 is opened. There is. However, when there are no more balls in the gutter 1, the lamp 8 lights up to notify the customer that there are no more balls, and the coin slot 3
shutter 9 closes to prevent coins from being inserted.

Further, the shutter 9 is operated by a solenoid 11 which is operated by a switch 7.

The inserted coins are then sorted by a known coin sorting device 5, and only suitable coins are picked up by a coin cutting device 6.
This activates the constant replenishment device 2, and a predetermined number of pachinko balls are discharged from the tank into the ball storage tank 10 through the zigzag-shaped gutter 1 described above. Note that 12 is a straight pachinko ball flow gutter connected to the ball storage tank 10 and the zigzag pachinko ball flow gutter 1.

Coin cutting device 6 used in the above ball lending machine
As for the coin sorting device 5, the coin flow gutter 13 connected to the appropriate coin discharge port is sandwiched between the first
The swing lever 14 and the second swing lever 15 are configured to interlock with each other via a coupling link 16.
The first swing lever 14 and the second swing lever 15 are
The ends of each constitute stoppers 14a, 15a, which are designed to alternately move in and out of the gutter 13 at a fixed interval, for example, one coin, in the front and back. The coupling link 16 is connected to the second swing lever 1
5 and the middle of the first swinging lever 14, and 17 and 18 indicate pivot points between both ends of the link 16 and each of the levers 15 and 14. , the long hole 16a of the link 16 is engaged with the pin 14b of the lever 14. Further, the lever 14 is pivoted 19 to the frame at its lower end, and has doglegged links 20 and 21 extending further downward from the frame.

22 is a pivot portion of the upper link 20 of the dogleg-shaped link relative to the lever 14, and is composed of a pin and an elongated hole that fits into the pin.

Reference numeral 23 denotes a pivot support of the links 20 and 21 relative to the frame. Therefore, the lower end hole 2 of the lower link 21
4 and the pin 25 of the lever 14.
6 is hung.

As described above, the doglegged links 20, 21, the spring 26, the elongated hole 16a of the coupling link 16, and the pin 14b of the lever 14 are integrated into one body for fast forwarding.
It constitutes a slow return mechanism.

That is, when the lever 14 moves from the position shown by the solid line to the position shown by the imaginary line, the pivot portion 22 of the upper link 20 relative to the lever 14 moves to the left, and accordingly, the doglegged links 20 and 21 become integrated. and swings around the pivot support 23.

Thus, until the spring 26 passes over the pivot portion 19 of the lever 14, the elongated hole 16 of the coupling link 16
The left end of the pin 14a contacts the pin 14b, and the lever 14 is forcibly moved by the solenoid 30 to the connecting link 1.
6, and when it crosses the pivot point 19, the force of the spring 26 is further applied, causing it to rapidly tilt to the left.

On the other hand, when the lever 14 returns to the solid line position,
Initially, the right end of the elongated hole 16a and the pin 14b are not engaged, so a spring 29, which will be described later, is applied to the link 1.
6 moves to the left by the length of the elongated hole 16a.

Only when the pin 14b moves leftward and reaches the right end of the elongated hole 16a does the lever 14 release the spring 29.
The lever 14 will swing to the left, and the lever 14 will swing only by the force of the spring 29 against the force of the spring 26 until the spring 26 passes the pivot portion 19 of the lever 14, so it will return slowly. That's what happened. When the spring 26 passes over the pivot portion of the lever 14, the lever 14 is locked by the spring 26.

If the above mechanism is used, the stopper 14a
This will allow you to receive the coin faster, and when you release the coin, you will release it more slowly.
A reliable coin cutting operation will be performed.

The lever 15 is pivoted 27 to the frame at its intermediate portion.
The arm 1 protrudes from the lever 15 in a T-shape.
A spring 29 is stretched between the end 5b and the pin 28 of the frame, and a core punch 31 of a solenoid 30 is pivoted 32 in the middle of the arm 15b. When the lever 15 returns to its original position, the stopper 59 restricts the position. 33 is a micro switch whose detection arm 34 is always energized toward the original position by a spring (not shown).
The tip of the pipe faces into the gutter 13.

Note that this detection arm 34 constitutes the first detection arm in the present invention.

The above is a coin cutting device, but since this operates in transmission with the constant supply device, it is one of the constant supply devices.
To explain an example, the one shown is from the 1980s.
This is a constant replenishment device that has already been published as application No. 21106, and after the ratchet wheel facing the gutter has rotated a certain amount, the ratchet wheel is automatically stopped and a fixed number of pachinko balls can be replenished.

That is, when the first detection arm 34 detects one coin, the microswitch 33 energizes the solenoid coil 35 of the constant supply device 2 .

As a result, when the core punch 36 is being pulled down, the swinging lever 37 swings counterclockwise, the pawl 38 comes off the groove 40 of the stopper cam 39, and the ratchet wheel 41 becomes free and the gutter 12 It is rotated by the pachinko balls flowing inside, and a passive gear 43 is driven from the drive gear 42.

In this case, as the swing lever 37 rotates counterclockwise, the guide lever 44 is also pulled up, and its pawl 44a comes out of the groove 46 of the cylindrical cam 45 and moves to the sixth position.
The three-dimensional cam 4 is pulled up to the notch step A side shown in the figure.
Since it will slide on 7, passive gear 4
3 is freely driven.

When the passive gear 43 rotates, the guide lever 44
The pawl 44a falls into the groove 46 from the notch step 46a, and thus descends to a position where the pawl 38 at the tip of the swing lever 37 contacts the outer periphery of the stopper cam. Thereafter, the claw 38 falls into the groove 40 from the outer periphery of the stopper cam, and the rotation of the ratchet wheel 41 is stopped, making it possible to stop supplying a certain number of pachinko balls.

Note that 48 is a fulcrum of the swinging lever 37, and 48a is a projecting piece extending from the lower end of the swinging lever 37, which engages with the locking groove 36a of the core punch 36 of the solenoid 35 attached to the base plate 49. do.

Further, 50 is a protrusion erected on the passive gear 43 that is engaged with a pawl 52 provided on the stop plate 51 of the swing lever 37, and 53 is a reversal prevention pawl of the ratchet wheel 41. Furthermore, 54 is a pivot shaft for the guide lever 44, and 55 is a spring that urges the guide claw 44a toward the guide cam side.

The constant replenishment device as described above includes a micro switch 5 that opens and closes as the core punch 36 moves up and down.
There are 6. 56a is an operating piece of the micro switch 56, which is operated by the head of the core punch 36.

Now, to explain the operation of the coin cutter,
The first detection arm 34 receives a replenishment signal when the micro switch 33 is activated, and the core punch 36 is pulled down by the excitation of the solenoid coil 35, and the ratchet wheel 41 becomes free based on the above-described operation, replenishing a certain number of balls. starts operating.

At this time, the head of the core punch 36 separates from the operating piece 56a, so the micro switch 56 is turned on, sending a signal to the solenoid 30 of the coin cutting device and energizing it.

Then, the core punch 31 is pulled down, and the second swinging lever 15 moves from the fulcrum 2 against the force of the spring 18.
7 in the clockwise direction on the diagram.

The stopper 15a is therefore retracted from the gutter 13, whereas the stopper 14a protrudes into the gutter 13.

This operation releases one coin that has been supported by the stopper 15a and causes it to fall from the gutter 13 through the stopper 15c, which will be described later, into a coin box (not shown), while the coin is continuously dropped from the coin slot by the stopper 14a. It catches subsequent coins and prevents them from falling.

The first detection arm 34 released from the fallen coin is returned to its original position by a spring (not shown), and the micro switch 33 is turned OFF.
As a result, the solenoid coil 35 in the constant supply device is de-energized and the core rod 36 rises.

Here, while the coin is received by the stopper 15a, the first detection arm 34 is in a position where the micro switch 33 is kept turned on by the coin.

Next, as the core punch 36 rises as described above, the operating piece 56a of the micro switch 56 is pushed up and the micro switch 56 is turned off.
The solenoid coil 30 is de-energized and the second swing lever 15 is returned to its original position with the stopper 59 by the spring 29.

Therefore, the first swing lever 14 is also connected to the connecting link 1.
The coin at the forefront, which was stopped by the stopper 6, falls and is caught by the stopper 15a, but in the middle of the fall, the first detection arm 34 is activated, so the same operation as before is repeated and a certain number of pachinko balls are picked up. to the customer.

However, when replenishing a fixed number of balls, the claw 44a of the guide lever 44 of the swing lever 37 in the constant replenishment device rides on the three-dimensional cam 47 and does not fit into the groove 46. The operating piece 56a is not pushed up by the head of the core punch 36, the micro switch 56 remains on, and the solenoid 30 of the coin cutter remains energized.

When a certain number of supplies are completed, the swing lever 3
Since the claw 44a of No. 7 falls into the groove 46, the protruding piece 48
Pull up the core punch 36 with a and press the micro switch 5.
6 is set to OFF. Therefore, the solenoid 30 of the coin cutter is de-energized and the second swing lever 15
returns to its original position, and its stopper 15a receives the coin released from stopper 14a. In any case, the coin falls until it is taken over by the stopper 15a, and in the middle of the fall, the first detection arm 34 is actuated, the solenoid 30 is energized, the coin that was received by the stopper 15a is released, and the coin is received by the stopper 14a. It is.

Due to the above operation, it is possible to release a predetermined number of balls to the customer for each coin, and no matter how many coins are continuously inserted, it is possible to separate the coins one by one and distribute the number of balls according to the number of coins. can be released.

Now, the fraud detection circuit and the lamp blinking circuit will be explained based on FIG.
When SW 5 is energized, its core rod 36 separates from the actuating piece 56a of the micro switch 56 and the micro switch 56 turns ON. SW ₁ refers to the micro switch 56, and is normally on the Nc side. , this is the contact X ₁ that moves to the ON or No side
Relay RYX ₁ , which is self _- held at
This turns on each of X ₁ ′.

Further, SW ₂ is a micro switch 58 having a second detection arm 57 provided below and close to the first detection arm 34 so as to face the gutter 13 shown in FIG. Normally closed, that is, the coin is turned ON in the NC position, but when the coin loses support from the stopper 15a and falls, it is immediately supported by the stopper 15c and is turned OFF by pushing the second detection arm 57 downward. This is designed to release the self-holding of relay RYX ₁ .

Further, the contacts X ₂ and X ₂ ′ are contacts that are turned ON by the operation of the relay RYX ₂ , which is self-held by the contact X ₂ .

Switch SW ₃ is a reset switch for canceling the alarm output, and is normally closed or normally closed.
Closed in NC position.

Also, Switch SW ₄ when a coin is inserted
This is a switch that turns on and refers to the micro switch 33.

The fraud detection circuit described above is a circuit that is opened by the contact _X2 of the lamp blinking device, and the lamp 8 is made to blink by a known oscillation circuit and inverter circuit Z. Also, the contact
The line A established by X ₂ ' is wired to an alarm circuit (not shown) like the lamp blinking circuit
For example, an alarm system installed in Hall's office,
It is used for wiring to lamps etc. placed on the top of the island.

As mentioned earlier, the switch 7 is a switch to check the presence or absence of balls, and it does not turn on the lamp 8 of the ball lending machine when there are balls, but turns it on when there are no more balls. On the other hand, you can turn on the light when there are balls and not turn on the lights when there are no balls.

Now, to explain the operation of the present device, when the first detection arm 34 detects one coin, the micro switch 33 is activated and the switch is activated.
SW ₄ turns ON and sends a replenishment signal to solenoid coil 3.
5 to excite it. The core punch 36 is pulled down by the excitation of the solenoid coil 35, and the ratchet wheel 41 becomes free based on the above-described operation, and the operation of replenishing a certain number of balls is started.

At this time, the micro switch 53 is also turned on, so a signal is sent to the solenoid 30 of the coin cutter 6 to energize it.

Then, the core punch 31 is pulled down, and the second swinging lever 15 moves from the fulcrum 2 against the force of the spring 29.
7 in the clockwise direction on the diagram.

With this rocking, the first
The swing lever 14 also swings in the same direction to cut coins.

As described above, the micro switch 56, that is,
SW ₁ being ON means that the switch is turned on in Figure 9.
When SW ₁ moves from the N _c side to the N _p side, this causes relay RYX ₁ to work and contact X ₁ to close the relay.
RYX ₁ is self-maintaining.

In this case, 1 was stopped by stopper 15a.
The two coins are released from the stopper 15a as the second swing lever 15 swings, and immediately after that, the lower stopper 15c of the second swing lever 15 is released.
This causes the second detection arm 57 to continue operating. Then, the micro switch 58, that is, SW ₂ is activated by this detection arm 57.
Since the relay RYX ₁ is released from the N _c position, the self-holding state of the relay RYX 1 is released, and the contacts X ₁ and X ₁ ' are turned OFF. Since the core punch 36 remains pulled down, the switch SW ₁ continues to be located on the N _c side.

Therefore, the solenoid coil 30 continues to be energized,
The stopper 15c continues to receive coins.

When a certain number of balls have been replenished, the core punch 36 is raised by the swing lever 37 from the solenoid coil 35 which has not been energized, and the micro switch 56 is activated.
As the actuating piece 56a is pushed up, the micro switch 56, that is, SW ₁ moves from the N _p side to the N _c side,
The solenoid coil 30 is de-energized. Therefore, the coins held by the stopper 15c are released and fall into a coin box (not shown).

Then, the second swing lever 15 is moved again by the spring 2.
9 protrudes into the gutter 13, and the first swing lever 14 gutter 1
3. Retreat from within.

Then, the first detection arm 34 is activated again with the next coin, and the coin is received by the stopper 15a.

From the above, the second swing lever 15 receives coins twice.

The above is normal operation, and even if the micro switch 56, that is, SW ₁ moves to the N _c side, the relay
Since RYX ₁ is not activated, contact X ₁ ′ is
OFF, so relay RYX ₂ will not operate.

However, if a wire or the like is inserted into the coin slot and only the first detection arm 34 is activated but the second detection arm 57 is not activated, the fraud detection circuit will work and notify the hall that the customer has committed fraud. .

That is, the first detection arm 34 turns on the micro switch 33, ie, SW ₄ , which further turns on the micro switch 56, ie, SW ₁ .
moves to the N _p side, activates the constant supply device, and excites the solenoid coil 30 to move the second swing lever 1
Even if the coin is not used, the second detection arm 57 will be inactive and its micro switch 58, ie, SW ₂ , will remain in the N _c position, and the constant supply device will not operate. When the operation of switch SW ₁ is moved from the N _p side to the N _c side, the self-holding of relay RYX ₁ is still operating without being released, so contact X ₁ and
Both X ₁ ′ will continue to be ON, so relay RYX ₂ will work to turn on contact X ₂ and contact X ₂ ′, and close the lamp blinking circuit by contact X ₂ .
In addition, the relay RYX ₂ is self-held, the lamp 8 is blinked, and an alarm output is also issued to the line A.

From the above, even if a certain amount of money is released due to customer fraud, the alarm will notify the hall that the customer has committed fraud, so fraud can be prevented and fraud will not be committed. The lamp on the ball rental machine will flash, so you can immediately tell where the fraud occurred.

(Effects of the invention) In any case, the present invention achieves the following effects due to the above characteristic configuration.

The coin cutter can detect coins one by one, and will not malfunction even if a plurality of coins are inserted in succession.

Since the first detection arm detects a coin in a locked state, no detection is missed.

After the operation of the replenishing device is completed, the coin in a stationary state falls and activates the second detection arm, so the coin always has a constant falling motion and the detection by the first detection arm and the detection by the second detection arm. Detection is always performed at a constant time difference. Moreover, since the first detection arm and the second detection arm are close to each other, the time difference between them is very small. Therefore, the first
Immediately after the second detection arm finishes operating, the second detection arm always operates at a constant timing.

Therefore, if the second detection arm is not activated immediately after the operation of the replenishing device is completed, the alarm circuit is activated, so that fraudulent activity using a wire or the like can be reliably detected. In other words, if a wire or the like is inserted into the coin slot and only the first detection arm is activated, but the second detection arm is not activated, the alarm circuit will close and notify the hall that the customer has committed fraud. It is. In addition, as mentioned above, when there are no malfunctions or omissions in detection, and there is no fraudulent activity, the alarm circuit that is closed after the first detection arm is activated can be reliably reset by the second detection arm. It has the characteristic that it can be done.

[Brief explanation of the drawing]

Figure 1 is a schematic explanatory diagram of the ball lending machine, Figure 2 is a front view of the coin cutting device, Figure 3 is a cutaway plan view of the same as above, Figure 4 is a front view of the pachinko ball constant supply device, and Figure 5 is the front view of the coin cutting device. Figure 4 is a cross-sectional view taken along line A-A, Figure 6 is a front view of the three-dimensional cam, Figure 7 is a cross-sectional view taken along line B-B in Figure 6, and Figure 8 is a portion showing the relative relationship between the three-dimensional cam and the guide lever. The cross-sectional view, FIG. 9, is a circuit diagram of a lamp blinking device in the event of unauthorized use. 2... Pachinko ball constant supply device, 5... Coin sorting device, 6... Coin cutting device, 13... Coin flow gutter,
14...First swing lever, 15...Second swing lever, 33, 58...Micro switch, 34...
First detection arm, 57... second detection arm.

Claims (1)

[Scope of utility model registration request] In a coin cutter that sequentially drops continuously inserted coins each time the operation of the replenishment device is completed, the first detection arm is actuated by a coin that is locked when the replenishment device is in operation; , a second detection arm is provided which is activated when the locked coin falls after the operation of the replenishing device is completed, and the first detection arm and the second detection arm are placed close to each other. and configured to reset an alarm circuit that is closed after the end of the operation of the first detection arm by the operation of the second detection arm.
Fraud detection device for ball lending machines.