JPS5920158B2 - coin handling equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coin processing device used in a vending machine and the like, and its purpose is to confirm that genuine coins have been inserted and to detect coins that are stuck.

Conventionally, especially in electronic coin verification type coin processing devices, after coins are verified, the coins are classified into return slots and storage slots based on the results of determining whether the coins are genuine or false. If the coin processing device malfunctions, even if the coins identified as genuine coins are sent to the return slot, the coin handling device will accumulate them as genuine coins, and if a genuine hardened coin suspended by a thread is inserted, the coin sorting device will not function normally. Even if the coins pass through the coin verification section, there are no obstacles, so once the coins have been verified, they can be easily moved to the return slot or returned to the input slot. In the coin processing device, there has been an inconvenience that the input coins are accumulated as genuine coins.

The present invention aims to eliminate these disadvantages.

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a coin passage portion of a coin processing device according to an embodiment of the present invention, and in FIG. It passes through a coin validator 9 consisting of coin validating sensors 6, 7, and 8.

At this time, the moment the coin passes the coin verification sensor 8, the coin verification device 9 determines whether the inserted coin 1 is a genuine coin or a fake coin, and if it is a genuine coin, what value of the genuine coin it is. At this time, the gate 11 separating the storage passage 12 and the return passage 13 is normally closed, and the inserted coin 1 is guided in the direction of the return passage 13. 1
It opens for a certain period of time only when the coin is determined to be a genuine coin.
Among the inserted coins 1, only genuine coins are led to the storage passage 12. FIG. 2 shows a block circuit of the main part of the device, and the coin storage detection block 14 detects the passage time of the inserted coin 1 by the passage time detection sensor 10 provided on the gate 11. Determine whether the inserted coin has been led to the storage passage 12 side by determining whether the passing time is the time when it naturally fell into the storage passage 12 or the time when it fell into the return passage 13, Then insert 1 coin into the storage passage 12.
At the same time as it detects that the coin 1 has entered, it generates a signal to close the gate 11, waits for a certain period of time, and after detecting that the inserted coin 1 is not a threaded coin, generates a coin storage signal.

Further, the integration command circuit 15 causes the integration device 16 to integrate the value of the inserted genuine coins based on signals from both the coin validator 9 and the coin storage detection block 14. . Next, the coin storage detection block 14 will be explained in detail with reference to FIG.

First, in FIG. 1, the gate 11 opens and coins 1 are inserted.
When the coin is guided to the storage passageway 12 by natural fall, the time it takes to pass through the passage time detection sensor 10 is TA, and the input coin 1 collides with the gate 11, its speed is reduced, and the coin passes through the return passageway 1.
If TB is the time taken to pass the passage time detection sensor 10 when turning to the third side, then TA<I'B.

In addition, in FIG. 3, the time constant T1 of the first time limit circuit 17
is set so that TA<T1×TB. now,
When the inserted coin 1 passes through the coin validator 9 and is determined to be a genuine coin, the gate 11 is opened and the inserted coin 1 passes through the passage time detection sensor 10 and is guided to the storage passage 12.

At this time, when the inserted coin 1 passes the passing time detection sensor 10, a signal is generated from the passing time detection sensor 10.
The length of that signal is TA. Then, at the rising edge of the signal from the passing time detection sensor 10, the first timer circuit 1
7 operates, and the output A of the D circuit 21 is ANDed between the output of the first time limit circuit 17 and the signal obtained by inverting the signal from the passing time detection sensor 10 by the inverter 20.
As shown in the figure, only (T1-TA) becomes logic 1. Further, the signal of the output A is input to the gate control circuit 25, and the gate 11 is closed by the gate control circuit 25. That is, if the inserted coin 1 is a normal inserted coin, it is detected by the signal of the output A that the inserted coin 1 has entered the storage passage 12. By the way, when a genuine coin suspended by a thread is inserted, the moment the threaded coin passes through the transit time detection sensor 10 and enters the storage passage 12, the thread may be pulled up and pulled back into the slot 2 again. Also, if the length of the string is adjusted to an appropriate length, the stringed coin will make a pendulum movement using the tip of the guide rail 5 as a fulcrum even though the gate 11 is open, and will be sent to the return path 13. Sometimes you are guided.

That is, in order to provide an accurate coin processing device, it is necessary to prevent malfunctions caused by the stringed coins. In FIG. 3, in order to detect the movement of the threaded coin, the second timer circuit 18 is activated by the rising edge of the output A signal. Then, if the time constant of the output B of this two-time limit circuit 18 is T2, the presence or absence of a signal from the transit time detection sensor 10 is detected during T2, and if there is a signal, it is stored in a storage circuit 23 using a flip-flop. Further, the third time limit circuit 19 is operated at the falling edge of the output B of the second time limit circuit 18, and the output C of the third time limit circuit 19 (with a time constant of T
3) and the negative logic output C of the memory circuit 23 by an AND circuit 24. Here, when a genuine coin with no thread is inserted, the AND circuit 24
The output D becomes the same as the output C of the third timer circuit 19, and the signal is inputted to the totalization command circuit 15 as a signal that the inserted coin 1 has entered the storage passage 12, and is then inputted to the signal from the coin validator 9. Therefore, integration is commanded, and the integration circuit 16 integrates the value of the inserted coin 1.

On the other hand, when a genuine coin is inserted, the output D remains at logic 0, so no integration command signal is issued and the coins inserted are not integrated.

The memory circuit 23 is reset by a signal from the coin validator 9 when the next coin is inserted. In addition, when the inserted coin 1 is determined to be a counterfeit coin by the coin validator 9, the gate 1
1 remains closed, so the inserted coin 1 is returned to the return path 13.
, the output A of the coin storage detection block 14 is logic 0.
The state is maintained and output D is not output. FIG. 5 shows another embodiment of the coin storage detection program 14. In FIG. 5, resettable time circuits are used as the second time limit circuit 18 and the third time limit circuit 19.

In the program circuit shown in FIG. 5, when a genuine coin suspended by a thread is inserted, the second timer circuit 18 and The third time limit circuit 19 is reset at the same time, and the output of the coin storage detection block 14 becomes zero. In this case as well, the same effects as in the above embodiment can be obtained. In the figure, 26 is an AND circuit. As described above, according to the present invention, gate failure and threaded coins can be detected without using any moving parts, resulting in highly reliable and stable operation, and the configuration is simple and inexpensive. It has the following advantages and is of great industrial value.

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram showing an embodiment of the coin processing device of the present invention, Fig. 2 is a block diagram of the same device, Fig. 3 is a concrete block diagram of the main parts, and Fig. 4 is the same main part. FIG. 5 is a block diagram of another embodiment of the same main part. 1... Coin, 9... Coin validator, 10...
... Passage time detection sensor, 11 ... Gate, 12 ... Storage passage, 13 ... Return passage, 14 ... Coin storage detection block, 16...
...Integrator.

Claims (1)

[Scope of Claims] 1. A coin validator disposed in a coin passage and for determining whether an inserted coin is a genuine coin or a counterfeit coin; Therefore, there is provided a gate through which the inserted coins are classified into a storage passage and a return passage, and a passage time detection sensor disposed in the passage between this gate and the coin validator, and the inserted coins pass through this sensor. It is determined whether the inserted coin was led to the storage aisle side by detecting the time when the inserted coin was guided to the storage aisle side and determining whether the passing time was the time when it naturally fell into the storage aisle or the time when it fell into the return aisle. A coin processing device comprising a coin storage detection block and an integrator driven by a coin storage signal from the coin storage detection block. 2 As a coin storage detection block, the first coin passage signal from the passage time detection sensor is held for a certain period of time in a time limit circuit, and during the signal holding period, the coin passage signal is detected by the passage time detection sensor, so that the coin storage detection block is activated. 2. The coin processing device according to claim 1, wherein the output is not applied to the integrator.