JPS5822791B2 - Vending machine common control circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control circuit for a vending machine, and in particular to a common control circuit for a vending machine that can be easily applied to the sale of products with a single price to the sale of products with multiple different prices. It is.

In general, some vending machines can only sell products of the same price, while others can sell multiple types of products with different prices.As the types of products that can be sold by vending machines increase, the latter People tend to prefer vending machines that can sell products at multiple prices.

On the other hand, in a vending machine, a coin control mechanism called a coin mechanism is indispensable in order to compare the amount of coins inserted with a set amount and control the payout of change.

With such a coin control mechanism, it is necessary to perform different controls depending on the number of set amounts, and therefore, the coin control mechanism must be selected depending on the price and number of products to be sold.

Further, in addition to the coin control mechanism described above, a vending machine requires a control circuit that receives various signals from the coin control mechanism and controls a motor, solenoid, etc. for dispensing the product.

Conventionally, this type of control circuit has a circuit configuration suitable for each coin control mechanism, and the control circuit for single price product sales cannot be transferred to coin control mechanisms for other 2-price or 3-price products. is normal.

However, not only selecting the coin control mechanism but also designing and storing the control circuit separately depending on the number of sales prices is not only incapable of dealing with a large number of sales prices, that is, multi-prices, but also requires a lot of labor. It is a heavy burden, and
It is not desirable in terms of inventory management to always have control circuits for models with low demand.

The purpose of the present invention is to be commonly applicable to various coin control mechanisms,
Another object of the present invention is to provide a common control circuit that does not cause horizontal errors even when connected to coin control mechanisms that are far apart.

Another object of the present invention is to use the same relay interchangeably when selling products at a single price and when selling products at multiple prices.

To provide a common control circuit that can be used as a relay with very different functions.

Another object of the present invention is to provide a common control circuit that can prevent mischief or malfunction.

Still another object of the present invention is to provide a common control circuit that can set states corresponding to various coin control mechanisms simply by switching a slide switch.

According to the present invention, in a control circuit for selling products with a single price, a sold-out relay that only recovers when all products are sold out or during product removal is used, and in a control circuit for selling products with multiple prices, a reset signal for the coin control mechanism is used. A common control circuit with a simple circuit configuration can be obtained by restoring the delivery relay by means of the contacts of the slow and slow restoring relay which is used for supplying and which starts restoring by the operation of the selection relay.

The present invention has a configuration in which the sold-out relay, the selection push button switch, the sold-out switch of each column, and the self-holding contact of the selection relay are connected in series to the power supply. When the product is sold out in the RAM, the sold out relay is restored.

Therefore, the recovery condition for this sold-out relay is set to the coin return mechanism (
In addition, the other contact (break contact) of the sold-out relay can be used as a reset condition for the coin control mechanism for selling multiple-priced products.

Furthermore, if the sold-out relay, the selection push button switch of each column, and the sold-out switch of each column are connected in series, when the products in all columns except one column are sold out, the sold-out relay will select only one. The operation is maintained by a push button switch and one sell-out switch.

Therefore, the state in which the amount of coins input has not reached the set amount,
That is, if the selection push button switch is pressed while the delivery IJ relay is not operating, the sold-out relay is restored.

For this reason, the amount of coins inserted is reset before it reaches the set amount.

In order to prevent such malfunctions, a diode is inserted between the make side of the selection pushbutton switch and the sold-out switch, so that the sold-out relay does not operate unless all the products are sold out.

Furthermore, in the present invention, by inserting a diode between each terminal of the coin control mechanism that sends a detection signal when the input coin amount reaches a set amount and the delivery IJ IJ relay, erroneous coin control can be prevented. A common control circuit that will not be damaged even when mechanisms are connected can be obtained.

The present invention will be described below with reference to the drawings.

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

Referring to FIG. 1, this embodiment is an AC power supply PS.

It has a coin control mechanism CM connected to the power source PS and a control circuit CON according to the present invention that receives various signals from the coin control mechanism CM and controls various operations of the vending machine.

To explain the bad coin control mechanism CM, it is common to all coin control mechanisms CM that power supply PS is supplied between terminals 1 and 2 and that a change out signal is sent to terminal 5.

Next, in the single price coin control mechanism (hereinafter simply referred to as the single or single coin control mechanism), when the amount of coins inserted reaches the set amount, a detection signal of approximately 500m5e is output to the terminal 3.
Only c is sent out sporadically.

In addition, a coin return electromagnet (clem) is internally connected to the terminal 6, and in the standby state when the amount of coins inserted does not reach the set amount, this crem attracts the protrusion protruding into the coin passing path, allowing the coin to pass through. power supply so as not to disturb the PS
It is necessary to supply

On the other hand, with the coin microswitch, if the coin microswitch is caught when a coin is inserted, the signal at terminal 7 is cut off, but a non-contact switch is used instead of the coin microswitch. Since this is normal, this terminal 7 is not normally used when the unit is single.

On the other hand, in the coin control mechanism for two prices (hereinafter simply referred to as dual or dual coin control mechanism), when coins of an amount equal to the set amounts of low price and high price are inserted, terminals 3 and 4 are used for low price and high price, respectively. A high price detection signal will be sent and this signal will continue until a reset signal is applied to the odd paper.

In addition, in the case of dual, a change circuit is connected to terminal 7, and if a signal is given to this terminal 7 during sales, it is determined that a high-priced product is being taken out and change is paid out for the high-priced product. However, when the signal at terminal 7 is cut off, change is paid out for low-priced products.

Next, in the case of a three-price coin control mechanism (hereinafter simply referred to as triple or triple coin control mechanism), when a coin of an amount equal to the set amount is inserted, terminals 3, 4, and 7 are connected to low, medium, and High price detection signals are sent out and these signals continue until a reset signal is applied to terminal 6.

Furthermore, in the case of a coin control mechanism with 4 prices or more, the price signal terminal only increases according to the number of selling prices, and the basic operation is the same as in the case of triple coins. It is described as a price sale coin control mechanism, that is, a multi-coin control mechanism.

The control circuit CON of the present invention that can be used in common with the coin control mechanism CM described above includes a 4-contact delivery relay
It has a 1-contact slow recovery relay RE, a 1-contact discrimination relay LH that is inserted in the case of dual, and a 3-contact selection relay A to E that operates when carrying out products, and a column containing selection relays has been added.

By doing so, you can sell more products.

Furthermore, solenoids 5LA-8LE for carrying out products corresponding to each column, push button selection switches PA to PE for specifying products in each column, J sold-out switches 5OA-8OE for detecting sold-out of products in each column, and Indicator lamp LA-L that indicates that the product in the column is sold out
E is provided.

Next, three slide switches SS1 to SS3 that can be switched simultaneously are installed to form circuit states suitable for single, dual, and multi.
Terminals S, D, and M of each slide switch correspond to single, dual, and multi, respectively.

Further, the terminals S, L, H, and M in the price setting section SP correspond to single, dual, low price, high price, and multi, respectively.

Here, to explain the connection relationship between each relay and the contacts in this circuit, the slow recovery relay RE is connected in series with the self-holding contacts e3 to a3 of the selection relay E-A with respect to the power supply PS, and the contact re It can be seen that is inserted into the self-holding circuit of Deliver IJ IJ RayX.

Therefore, during the slow and slow operation period of the slow and slow recovery relay RE, the delivery IJ and IJ relays are self-held.

Since terminals T1 and T2 are shorted, the sold-out relay S
O is connected in series with the break sides of selection pushbutton switches PA to PE in each column, the break sides of sell-out switches 5OA to 8OE in each column, and the break sides of contacts e3 to a3 of selection relay E-A.

Further, the contacts 5O2tSO3 of the sold-out t-SO form a signal sending circuit to the terminal 6 of the coin control mechanism CM.

The operation shown in FIG. 1 will be explained below for single, dual, and multi cases.

First, when using the single coin control mechanism CM, the slide switches SSI to SS3 are set to the terminal S1, and the price setting part SP is set to the terminal S, respectively.

Note that the discrimination relay used in the dual case has been removed.

In the standby state when the amount of coins input does not reach the set amount,
Sold out relay SO and slow recovery relay RE are contacts e3~
Operation is maintained by a circuit passing through the break side of a3.

When the input coin amount reaches the set amount, delivery I is sent from the terminal 3 of the coin control mechanism CM through the diode DX1 contact X3.
A detection signal is instantaneously supplied to the J IJ Ray.

Since the time constant of the delivery IJ and IJ relay X is selected to be relatively small, it is operated by the detection signal that arrives instantaneously, and is self-maintained at the contact X3.

When the delivery IJ IJ relay X maintains its operation, its contact x
1, the power supply to the terminal 6 of the single coin control mechanism CM is cut off, the coin is reset, and subsequent insertion of coins is refused.

Next, when one of the selection pushbutton switches PA-PE, for example PA, is pressed down, the selection relay A connects the contact , operates on the break side path of contacts e3 to a3, and contacts X1. a
l, held by making selection relay A1 contact a3.

In this way, when selection relays A-E operate, sold-out relay SO and slow recovery relay R connected in series to the break side of contacts a3 to e3 of these selection relays A-E
E starts recovery.

First, when the sold-out relay SO is restored, its contact so1
and solenoid SLA through contact a2 of selection relay A.
Electricity is applied from the power source PS, and the products are carried out from the corresponding column.

If the time constant is selected so that the slow-slow recovery relay RE recovers after the products are removed by solenoids 5LA-8LE, the contact re will open when the slow-slow recovery relay RE recovers, and the delivery IJ IJ Self-holding circuit is disconnected.

As a result, if Deliver IJ IJ RayX is restored,
By opening the contact X, the self-holding circuit of the selection relays A-E is cut off and restored, and the contacts a3-e of the selection relays A-E are opened.
3 returns to the standby state.

Therefore, the sold-out relay SO and the slow recovery relay RE
operates again, and the power supply PS is connected to the terminal 6 of the single coin control mechanism CM via the contact X1°s02.

For this reason,. The internal clock connected to the terminal 6 operates, and the vending machine returns to a state in which it can accept inserted coins.

In addition, in the control circuit CON shown in Fig. 1, when the vending machine runs out of change, the lamp L is turned on by a signal from the terminal 5 of the coin control mechanism CM, and when each Koshiram product is sold out, the sold-out switch SOA~ The SOE operates and the lamps LA-LE of each column are lit.

Furthermore, when the products in all the columns are sold out, the sold-out relay SO operates to release Clem's operating state and return all the coins that have been inserted.

Now, let's consider a case where all the products in the other columns are sold out, leaving only the ■ column.

In this case, the sold-out relay SO is energized through only the sold-out switch (for example, 5OA) of one column that can sell the product, so if there is no bypass circuit using the diode DA, the sold-out relay SO is activated by pressing the selection pushbutton switch PA. will be restored.

Here, a state without a bypass circuit will be explained.

Restoration of the sold-out relay SO is performed regardless of the operation of the delivery relay X.

Therefore, if there is no diode DA, the sold-out relay SO will be restored even if the selection push button switch PA is pressed before the amount of coins inserted does not reach the set amount.

Therefore, the power supply to the terminal 6 of the coin control mechanism CM is cut off.
The internal Clem operates and accepts the coins just inserted.

In order to eliminate this inconvenience, sold out relay SO
A bypass circuit including diodes DA-DE is provided between the push button selection switches PA-PE and the make sides of the push-button selection switches PA-PE.

Therefore, even if the push button selection switch PA-PE is pressed in the sales state of only one column, the sold-out relay SO is energized from the diode through the make side of the selection switch PA-PE. S
O will never recover.

Next, the dual case will be explained. Since the dual coin control mechanism CM has a function to return the inserted coin, there is no need to separately provide a sold-out relay SO as in the single case.

Therefore, in this control circuit CON, the sold-out relay SO is used to supply a reset signal to the terminal 6 of the dual coin control mechanism CM.

In addition, in the case of dual, low price and high price signals are sent from terminals 3 and 4, and the price setting section SP of the control circuit CON receives t corresponding to the price of the sales product in each column.
dL) or high (b) state is set.

Now, if the slide switches SS1 to SS3 are set to dual D and the discrimination relay LH, which discriminates whether the price of the sold product is high or low, is connected, the standby state will be the same as in the single case. , the sold-out relay SO and slow recovery relay RE are operating.

When the amount of coins inserted reaches the set amount of the low or high price, a price detection signal is continuously sent from the terminal 3 or 4.

This price detection signal is supplied to delivery relay X via diode DX1 or DX2, and delivery relay X maintains itself through contact X3 and waits for the user to select a product through contact X1.

Note that even if a price detection signal is sent to terminal 3, diodes D and D2 are connected to both ends of discrimination relay LH in opposite directions.
is connected, discrimination relay LH does not operate.

Here, if the user presses the push button selection switch PA and the price setting part SP corresponding to this switch PA is set to low price, the selection relay A is connected to the terminal 3,
Diode D1, terminal L1 selection relay A1 diode da of price setting section SP.

Break contacts of selection switch PA1, sold-out switch SOA, contacts a3 to e3 of selection relays A-E. and power supply PS
It operates on the following route.

Next, the selection relay A is the make side of the power supply PS1 contact X1 and the make side of the power supply PS1 contact
Self-preservation through this route.

Due to the operation and self-holding of the selection relay A, the sold-out relay SO and the slow recovery relay RE start recovery by cutting off their operating circuits through the contact a3, as in the case of the single relay.

When the sold-out relay SO is restored, the contact so1. Solenoid SLA operates via a2 to carry out the delivery of the product.

Since the slow and slow recovery relay RE performing the slow and slow recovery has a delay time sufficient to operate the solenoids 5LA-8LE, the delivery IJ, IJ, and selection relays A are held during the delivery of the goods.

During the operation of delivery IJ IJ relay
Since it is connected to the power supply terminal 1 through the path, the discrimination relay LH located in this path operates and opens its contact g.

Therefore, if a low-priced product is selected for terminal 7 of the dual coin control mechanism CM, the power supply PS from terminal 1
is blocked and the customer is instructed to pay out the change corresponding to the low-priced item.

On the other hand, when the high price (b) is set in the price setting section SP, the circuit of the discrimination relay LH described above is not configured and the power supply PS remains connected to the terminal 7.
Dispense change equivalent to high-value items.

When the goods are carried out and the slow recovery relay RE is restored, delivery relay X is activated by its contact re.

The holding circuit of is cut off, the delivery IJ IJ relay X is restored, and its contacts X1, t, and X3 break.

In this state, the sold-out relay SO is restored and its contact S
Since 02 is broken, contact X and SO2
A reset signal is supplied to the terminal 6 through the break side of the switch and the terminal of the slide switch SS2, and the dual coin control mechanism CM is reset.

On the other hand, due to the braking of contact x1 of delivery relay
Since the self-holding circuit of selection relay A is disconnected, selection relay A is restored and contacts a1 to a3 break.

When the contact a3 breaks, the operation circuits of the sold-out relay SO and slow recovery relay RE are configured, each relay SO and RE are operated, and the vending machine is restored to the standby state.

Furthermore, in the case of triple or more multi, the three slide switches SS1 to SS3 are set to terminal M, and the discrimination relay LH inserted in the case of dual is removed.

Next, the three slide switches SS1 to SS3 are connected to the terminal M
, and the price setting section SP is set to terminals H and M.
is set to one of the following.

Although only one terminal M of the price setting section SP is shown as a representative, these terminals 3' and the price detection signal terminal (for example, 3') of the coin control mechanism CM correspond to the terminal M of the price setting section SP.
By increasing the number of lines connecting the lines and the terminal M of the price setting section M, and by connecting a diode DX to the price detection signal terminal 3', it can be easily applied to a coin control mechanism CM with four prices or more.

Here, in order to simplify the explanation, the operation will be explained using a triple case as an example.

In this case, low, medium and high price detection signals are sent from the terminals 3, 4 and 7 of the coin control mechanism CM, respectively, and the change is determined by determining the loop formed at the terminals 3, 4 and 7. It is determined within the control mechanism CM.

First, in the standby state, the sold-out relay SO and the slow recovery relay RE are in an operating state.

When the amount of coins inserted reaches the set amount, a price detection signal is output from terminals 3, 4, or 7 to diode DX1. DX2. It is supplied to delivery relay X through DX3.

When Deliver IJ IJ Ray X operates, its contact x1.
x2.degree.

In this embodiment, push button selection switches PA, PB and PC are used.
The price setting section SP corresponding to
, and the selection switch PA is pressed first.

When the selection switch PA is pressed down, the terminal 3 is connected to the diode D1, and the terminal L1 selection relay A1 diode da of the price setting section SP.

A path is formed that passes through the break side of the holding contacts e3 to a3 of the selection switch PA, the sold-out switch 5OA1 and the selection relay EA to the power supply PS.

As a result, selection relay A operates, and contact alla3
The slow recovery relay RE and the sold-out relay SO start recovery.

Each relay is configured to recover in the order of sold-out relay SO2 slow recovery relay RE, delivery relay X1 selection relay AE.

Contact X2 is connected to the beam set signal terminal 6 in the coin control mechanism CM.
, contact so3. After receiving the reset signal via M of the switch S82 and stopping sending out the price detection signal, there is a connection between the price detection signal terminal 3 and the terminal 2 of the coin control mechanism CM.
Diode D1 price setting part SP (L corresponding to column "A"), self-holding contact a1 of selection relay A, contact X1 of delivery relay X, contact re1 of slow recovery relay RE, delivery IJ contact X3 of IJ relay, delivery A loop is formed by the IJ IJ circuit 1 power supply PS and the terminal 2 path.

The triple or multi-coin control mechanism CM includes terminals 2, 3, 4 . Detection circuits for determining the presence or absence of loop formation are provided between the circuits and 7, respectively.

When this detection circuit detects that a loop is formed between terminals 2 and 3, the coin control mechanism CM prepares change for the low set amount.

On the other hand, when the selection relay A operates, the solenoid SLA is activated and the goods are carried out, and then the slow recovery relay RE is activated.
, then Deliver IJ IJ Shire is restored.

When the delivery IJ IJ relay is restored, the sold-out relay S is set so that the sold-out relay SO is still in the recovery state.
If a time constant of O is selected, a reset signal is supplied to terminal 6, and the vending machine returns to the standby state.

Further, when the push button selection switch PB connected to the terminal H of the price setting section SP is pressed, a loop is formed from terminal 4: through the terminal H of the price setting section SP, and the coin control mechanism CM identifies this loop. and pay out the change.

Since the operations other than this are the same as those described above, the explanation will be omitted here.

Next, when the push button selection switch PC is pressed, the price setting section SP of this column is set to the terminal M.

Therefore, a circuit is formed that runs from the terminal 7 to the terminal M of the slide switch SS1 and the terminal M of the price setting section SP.
When the selection relay C operates, the closure of the loop passing through the terminal 7 is identified within the coin control mechanism JCM to control the payout of change.

Delivery IJ IJ relay 1 sold out relay S01 slow recovery relay RE, selection relay A-E and solenoid SLA~
The SLE operation and recovery conditions are the same as those described above.

Furthermore, in the embodiment shown in FIG. 1, the sold-out relay SO is brought back slowly and slowly, but by bringing the sold-out relay SO back slowly and slowly, the two selection switches are pressed at the same time, and the two selection relays are activated. Even if an operating circuit is formed, one solenoid can be driven by the contact S01 after waiting for the selection relay with a higher priority to be self-held.

Therefore, contact s01 and selection relay contacts a3 to e
The series circuit formed by 3 is the circuit necessary to reliably operate one solenoid.

- As described above, according to the present invention, the delivery relay is connected to the price detection signal terminal of the coin control mechanism via a diode and a changeover switch, and the self-holding circuit of this delivery relay has a contact point, and , a slow-slow recovery relay that starts recovery by the operation of the self-holding contact of the selection relay, and a reset signal corresponding to each coin control mechanism can be supplied to each reset terminal of the single, dual, and multiple coin control mechanisms. A vending machine is obtained, which is equipped with a sold-out relay having a sold-out contact point.

Furthermore, in the present invention, it is possible to prevent input coins that do not reach the set amount from being stored by pressing the push button selection switch in the sales state of a single column, and also to prevent malfunctions caused by pressing two selection switches at the same time. Is possible.

In the embodiment, a case has been described in which a solenoid is used as the delivery mechanism, but the present invention can also be applied to a case where a motor is used by connecting a cam switch in series to the self-holding circuit of the delivery relay.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing an embodiment of the present invention. Explanation of symbols, PS... AC power supply, CM...
・・Coin control mechanism, CON・・・・Common control circuit,
SS1~SS3...Slide switch, X...
...Delivery relay, RE...Slow recovery relay, SO...Sold out relay, LH...
・Discrimination relay, SP...Price setting section, A-E・
...Selection relay, 5LA-8LE ...Solenoid, PA-PE ...Push button selection switch,
SO'A-8OE・・・Sold out switch, LA-
LE: Out of stock lamp, L: Out of change lamp, DA-DE: Bypass diode.

Claims (1)

[Claims] 1. An automatic system that can be used in conjunction with multiple types of coin control mechanisms that detects when the amount of coins inserted has reached a set amount and sends out a price detection signal, and returns to a standby state after a user's selection. In the common control circuit of the vending machine, a delivery IJ that operates upon detecting the price detection signal from the coin control mechanism and is self-maintained, a selection switch that is pressed when the user makes a selection, and a selection switch that is pressed at both ends. A selection relay comprising first and second self-holding contacts, which operates when the selection switch is pressed during self-holding operation and becomes inoperable when the delivery relay is restored; is connected in series to a series circuit constituted by an unloading means that is in a standby state for unloading, and a break side of the second self-holding contact of the selection relay, and after the selection relay is activated, the unloading means is in a non-operating state and the unloading unit is in a standby state. In addition to having the function of operating the means,
When the coin control mechanism is for a single price, it becomes inactive when all products are sold out and has a function of stopping sales, and when the coin control mechanism is for a single price, the delivery IJ A sold-out relay that has a function of instructing the coin control mechanism to be connected to reset according to the self-holding of the selection relay during the period until the IJ relay is restored, and a sold-out relay between the sold-out relay and each selection switch. a bypass circuit for preventing malfunction of the sold-out relay due to depression of the selection switch in a predetermined state; and a bypass circuit for selectively connecting the price detection signal terminal and the selection relay. A common control for a vending machine, characterized in that it is equipped with a price setting unit that can be switched in response to a desired price detection signal terminal, and a slide switch that can set a state in accordance with the coin control mechanism. circuit.