JPS5822790B2 - Vending machine change payout control circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Recent vending machines are equipped with a spare change barrel in addition to the regular coin barrel, which is called a coin knock, which is installed in the money handling mechanism. When the coins run out, a system is adopted in which coins are replenished as appropriate from this spare change cylinder.

However, when such a spare change tube for replenishment is attached to the coin knock, the coin knock becomes quite large, and there is a problem in that the placement of the coin knock is naturally limited in the configuration of the vending machine.

Therefore, if you install a spare change cylinder in the coin knock or separate from the coin knock, or if there are no coins left in the regular change cylinder, it will immediately receive an electrical signal from the control unit that performs the calculation and storage operations of the coin mech. If the spare change cylinder is configured to dispense the required amount of coins as change instead of the regular change cylinder, the spare change cylinder can be placed anywhere as long as it is connected to the coin dispensing passage, and the space of the vending machine can be used effectively.

The present invention provides a change dispensing control circuit for the dispensing operations of the regular change tube and the spare change tube when the spare change tube has such a configuration. It is a purpose.

An embodiment of the present invention will be described in detail below based on the drawings.

The present invention will be explained using a vending machine that handles both 50 yen coins and 10 yen coins.

The regular change tube and the spare change tube each have a 50 yen coin tube and a 10 yen coin tube, and each coin tube detects whether the stored coins have reached a specified number using a conventionally known empty switch consisting of a proximity switch or the like. There is.

In the figure, the first detection means 1 outputs a signal indicating that there are no 50 yen or 10 yen coins for change in the regular change cylinders when the number of coins in each of the regular change cylinders for 50 yen and 10 yen runs out to a specified number. 10
Yen coin out signal 10ETS1.50 yen coin out signal 50
ETS, respectively, and the second detection means 2 outputs a message indicating that there are no 50 yen and 10 yen coins for change in the spare change cylinders when the number of coins in each of the spare change cylinders for 50 yen and 10 yen runs out to a specified number. Signal, i.e. spare 10 yen coin out signal 10ETS2, spare 5
A 0 yen coin out signal 50 ET8.2 is output respectively.

The signals input from the control section of the coin knock to the control circuit of the present invention are 10 yen coin dispensing finger 4>10CHG, 50 yen coin dispensing finger 4>50CHG1, and a sales signal ■S indicating that the vending machine is in the selling operation state. and a reject signal ARJ for performing the well-known reject control in which an electromagnetic means is operated in the coin passage to project a pin during change calculation operation of the control section to reject the inserted coin.

The signals to be output are motor drive signals M, , M, ,
, M3, and Ml is the coin dispensing motor 1 of the regular change cylinder.
4 and M32M2 are respectively 50 yen coin cylinders of spare change cylinders, 1
This is a signal that causes the 50 yen coin dispensing motor 29 and the 10 yen coin dispensing motor 24 of the 0 yen coin cylinder to be driven once.

Further, drive signals M for these motors 14, 24, and 29 are output from the control section via an OR circuit 20.

As a storage means for reading and storing the contents of 10ETS1 and 10ETS2, for example, a delay flip-flop circuit DF is used.
F, and 50ETS, 50ETS2 are the same < DFF
I) FF1 and DFF2 start operating upon arrival of reading finger GA.

In order to generate the read command A at the time when the control section finishes the change calculation operation, the fall of the ARJ is generated via read command generating means consisting of an inverter 4 and a differentiating circuit 8.

Therefore, it is not limited to ARJ, and a change calculation end signal may be directly provided from the control unit.

■S is a set input, and the inverted output from ARJ's impark 4 is input to the R-S flip-flop circuit as a reset input. A coin return signal ES is provided if desired.

The pulse generating circuits 9゜10.1t each generate a pulse P having a time width necessary for the corresponding payout motor 14゜24.29 to pay out 1゜ coin when the corresponding payout motor 14゜24.29 is driven.
SW1. PSW2. PSW3 is sent to each motor drive signal M1. M2. Operates to maintain M3.

That is, the pulse generating circuits 9, 10, and 11 are self-holding circuits for the corresponding coin dispensing motors.

As mentioned above, <ARJ is set during the calculation operation period to prevent malfunctions caused by coins being inserted while the control section of the coin knock is calculating change after entering the sales operation. The middle is a command to reject the inserted coin, and in the construction of the present invention, ■S and ARJ rise at the same time, and fall so that the pulse width of ■s becomes narrower than the pulse width of ARJ.

In addition, the above-mentioned coin return refers to escrow in this technical field, and the escrow of this vending machine accepts all the inserted coins into the regular change tube, and in the case of escrow, the amount of coins inserted from this regular change tube is the same as the change payout. A system is adopted in which the coins are paid out using the following motions.

To explain the operation, in the initial state, the flip-flop circuit 6
is in the reset state with the inverted output of ARJ, and assuming that the regular and spare change cylinders contain more than the specified number of coins, it is assumed that DFF1 and DFF2 are not generating output, but this operation will be explained later. It becomes clear.

Even if a coin is inserted, unless the customer operates the sales signal generating means 3 such as a 2 selection switch, ■S is not generated and no sales operation is performed, and the flip-flop circuit 6 is in a reset state and outputs ES. .

Therefore, the outputs of AND circuits 15 and 17 are inhibited by ES=0 and DFF.

The output of 5DFF2 is also prohibited, but this will become clear later.

Then, while the ES is outputting, when the customer wishes to return the inserted coins and operates a return switch (not shown), M is output from the control section and the ES is input to the OR circuit 12, which is then input to the AND circuit. 13, Ml is output, and coins of the same type as the input coins are returned from the regular change cylinder.

When the customer operates the sales signal generating means 3, ■S is generated via the control section of the coin knock at the start of the sales operation, and ■
Since the rising edge of the S signal becomes a set signal via the differentiating circuit 7 and the flip-flop circuit 6 is set and outputs ES, the above-mentioned escro operation is no longer possible.

Start of selling operation 1 At the same time, the control unit of the coin MEC performs a change calculation operation and a product sending operation is started, and after the change calculation operation, the ν control unit transmits change amount information to the circuit of the present invention at 10CHG and 50CHG. do.

The control unit is 10CHG. When both 50CHG and 50CHG must be output, 50C) (G is output with priority.

Based on this information, the control circuit of the present invention determines from which change cylinder the change coins will be dispensed.

As described above, since both change cylinders contain more than the specified number of coins, Ml is outputted from the AND circuit 13 in order to dispense change coins from the regular change cylinder.

That is, when 10CHG is output from the control section of the coin knock, the AND circuit 15 performs a logical product of 10CHG and ES, and then outputs A through the AND circuit 16 and the OR circuit 12.
It is output to the ND circuit 13, and when 50CHG is output, the AND circuit 17 performs the logical product of 50CHG and ES, and the AND circuit 18 and the OR circuit 12 output the AND circuit 13.
is output to.

The motor drive signal M outputted by the control section after the change calculation operation is input to one gate of the AND circuit 13 via the OR circuit 20, so the AND circuit 13 performs a logical product and outputs Ml.

The coin dispensing motor 14 of the regular change cylinder starts driving in response to the M1 signal, but at the same time as the start, the pulse generating circuit 9 constituted by, for example, a cam switch operates, and the period PSW required to dispense one coin is activated. The output is outputted to the OR circuit 19, and during that period, the output of M1 is maintained to cause the coin dispensing motor 14 to self-hold.

When the dispensing of one coin is completed, the pulse generating circuit 9 becomes inactive and stops outputting PSW, but PSW remains O.
The calculation signal is outputted to the control unit via the R circuit 19, and the control unit calculates the remaining amount of change after the coin disbursement is completed and outputs the change information and motor drive signal M at 10CHG or 50CHG. Output.

Then, this operation is repeated until the control section calculates that the remaining change is 0 and 10C) (G or 50CHG) is no longer output.

When the delivery of the selected product and the payout of change are completed and one sales operation is completed, ARJ falls, but the rise via impark 4 becomes a reset signal in the differentiating circuit 8, and returns to the reset state again as described above. The escrow payment becomes possible.

Further, the positive potential signal output from the differentiating circuit 8 becomes the reading finger /+A and is output to DFF1 and DFF.

Here, the presence or absence of coins in both change tubes for the next sales operation is DF.
The determination is made using Fl and DFF2.

10 in the regular change tube when paying out change in the sales operation mentioned above.
When the number of stored yen coins is less than the specified number, 10ETS1 is output from the first detection means 1, and when the spare change cylinder contains more than the specified number of 10 yen coins, the second detection means 2 outputs 10ETS2. If not, the AND circuit 21 performs a logical product between l0ETS and the inverted output of 10ETS2, and outputs 10ETS1 to the DFF.

Therefore, when reading finger 4>A, DFFl is allowed to operate and 1
0ETS, that is, it memorizes that there is no 10 yen coin for dispensing change in the regular change cylinder, and outputs a signal to this effect to the AND circuit 22.

Next, when the customer inserts a coin and operates the sales signal generating means 3, the sales operation is performed again.

When the control section of the coin knock outputs 10CHG, the AND circuit 15 performs a logical product of 10CHG and ES and outputs it to the AND circuit 22.
A logical product is obtained with the output of the FF, and the signal M is generated as described above, and M2 is outputted via the AND circuit 23.

At this M2, the 10 yen coin dispensing motor 24 of the spare change cylinder is driven to dispense a 10 yen coin from the spare change cylinder, and the coin dispensing motor 24 dispenses one coin by the operation of the pulse generating circuit 10. As described above, the PSW2 is self-held for a necessary period of time, and the PSW2 is outputted as a calculation signal to the control section of the Coin Mech to calculate the remaining amount of change.

Note that the output of the AND circuit 22 is connected to the AN via the impark 25.
Ml is not generated because it is input to the D circuit 16 as an inhibition signal.

Also, to explain the case where the regular change cylinder runs out of the specified number of 50 yen coins, the first detection means 1 outputs 50 ETS via the AND circuit 26 and the DFF 2 is set by reading command A, it memorizes that the 50 yen coin is not in the regular change cylinder, and outputs a signal to this effect to the AND circuit 2γ.

1 and M3 is outputted via the AND circuit 28, and the 50 yen coin dispensing motor 29 of the spare change cylinder is driven at M3, and a 50 yen coin is dispensed.

In this case, the pulse generating circuit 11 operates, the coin dispensing motor 29 is self-held by the PSW 3, and one 50 yen coin is dispensed, and the PSW 3 becomes a calculation signal and is input to the control section as described above.

Incidentally, at this time, the output of the AND circuit 27 is input to the AND circuit 18 via the inverter 30 as an inhibition signal, so that Ml is not generated.

When there are no 10 yen or 50 yen coins in both the regular change tube and the spare change tube, the first detection means 1 detects 10ETS1.
and 50ETS1. The second detection means 2 outputs 10ETS1 and 50ETS2, respectively, and outputs AND outputs 31 and 32.
Since it is impossible to pay out 10 yen and 50 yen coins as change, it outputs 10 ETS and 50 ETS.

The control circuit of the present invention is characterized in that the flip-flop circuit 6 creates two states: an escro-enabled state and an escro-prohibited state.

As mentioned above, the escrow system of this vending machine stores all the inserted coins in the regular change tube, so if escrow is used, the inserted coins can be returned even if the number of coins stored in the regular change tube does not reach the specified number. It should be.

Therefore, it is only necessary to output the M1 signal, and when the flip-flop circuit 6 is in the reset state, that is, in the escrop possible state, the ES
=0 makes '10CHG or 50CHG A respectively
The signal cannot be output to the AND circuit 22 or 27 via the ND circuit 15 or 17, and the output of M2 or M3 is prohibited.

The present invention described in detail above relates to a control circuit when the coin knock and spare change are mechanically separated, and when coins run out in the regular change cylinder on the coin knock side, the coins are immediately dispensed from the spare change cylinder. The present invention provides such a control circuit.

However, even if the device decides to dispense change from the reserve change tube, it does not dispense change from the reserve change tube forever after that, and in the selling operation after the regular change tube reaches the specified number of coins again, regular change is returned. Since it has the flexibility to be dispensed from the tube, the stored coins can be effectively dispensed as change.

Such an effect is caused by the reading finger/! that occurs for each sales operation. At +A, a storage means is installed to grasp the state of coin storage in both change tubes, and this can be achieved by simply installing the necessary logic circuit in the subsequent stage to determine from which change tube the next selling operation should be made based on this information. can.

In addition, once the storage means grasps the coin storage state, stable operation can be expected because this information grasp will not be reversed until the reading command A is received in the next selling operation.

In other words, if there is no change left in the regular change cylinder during a sales operation and the storage means determines that there is no change, even if the regular change cylinder is replenished with coins in the next sale and there is change, the change will not be returned in this sales operation. It works without it.

[Brief explanation of the drawing]

The figure shows a control circuit diagram of the invention. Explanation of main drawing numbers, 1...First detection means, 2.
. . . Second detection means, 4, 8 . . . Read command generation means, DFF, , DFF2 . . . Storage means.

Claims (1)

[Claims] 1.Equipped with a regular change cylinder for storing inserted coins and a spare change cylinder for storing change coins in advance, first and second detection means for detecting the presence or absence of coins in both cylinders, and a part of the device. It consists of means for generating a read command after calculating change for a sales operation, and a storage means for storing the detection results of the first and second detection means in response to the read command, and based on the storage results of the storage means, the next step is performed. A change dispensing control circuit for a vending machine that determines whether to dispense change based on whether the regular change cylinder and the spare change cylinder fall during a vending operation.