JPS5914870Y2 - Vending machine control device - Google Patents

Description

[Detailed explanation of the invention] This invention is a vending machine (vending machine) that sells similar products at a single price.
The present invention relates to a control device for a vending machine (hereinafter referred to as a vending machine).

Some vending machines that sell products of the same type at a single price are equipped with two storage devices for the products being sold.

In conventional vending machines of this type, after all the products in one storage device have been sold, the products in the other storage device are sold.

For this reason, if a product is compensated when a certain number of products in one category are sold, sales of the products in the other category may not start easily, and there is a risk that the quality of the product may change.

The present invention was developed in view of these shortcomings, and its purpose is to provide a vending machine that has two storage devices for selling products and that sells the same type of product at a single price by alternating the products in both storage devices. To provide a vending machine that fulfills the so-called first-in, first-out principle in which products stored first in a storage device are sold first.

According to the present invention, this purpose is to provide a control device for a vending machine having two product unloading means which are connected in parallel between the power supply lines and which, when energized, perform the unloading operation of the product in the corresponding product storage device. two time-limited return relays each driven by a sales command signal and having contacts for respectively opening and closing paths of the two product delivery means; and a plurality of sets of switching operations that are opened and closed by the contacts belonging to these two time-limited return relays. One instantaneous relay having contacts is provided, and when one of the switching contacts of each set of instantaneous return relay is closed, the other is opened in the path of the two product carrying means and the path of the two time-limited return relays. It is configured by inserting the configuration like this.

The present invention will be described in detail below based on embodiments shown in the drawings.

In the circuit diagram of the control device shown in FIG. 1 when the vending machine is in a standby state, that is, when coins have not been inserted up to the set price, 1 to 4 are coin sorting and counting mechanisms (hereinafter referred to as coin knocking mechanisms) (not shown). ) terminal.

1 and 2 are power supply terminals, and 3 is a product sales command terminal, which can be supplied with power from the terminal 1 line through a path not shown.

4 is a coin acceptance stop command terminal.

Sl and S2 are product delivery means, such as product delivery solenoids, respectively corresponding to two product storage devices (not shown).

TA and TB are relays for transporting goods, and are of the time-limited return type.

XC is a relay for mutual sale and is an instant return type.

Each of these relays has contacts whose subscripts are shown with their subscripts turned down, and in the figure, the open contacts are the A contacts, and the closed contacts are the B contacts.

Also, the contacts connected by broken lines are interlocked.

L is open model sold out indicator lamp, 5S11, 5S12, 5S2
1,5S23 is a product sold-out detection switch.

There is no need to intentionally provide a push button for purchasing products.

The functions of each part will become clear from the description below.

Now, the operation of this control circuit will be explained with reference to the time chart of FIG.

First, while coins have not been inserted up to the set price, the contacts of the control circuit and the sold-out detection switch are in the positions shown in FIG.

When coins are inserted up to the set price (time to in Figure 2)
, a product sales command is issued from terminal 3 to the control circuit, l-3-B contact of
TA is energized through the path of contact-2, and contacts TA1. TA2.
TA3 works.

By closing the a contact TAI, l-3-TAL-T
Relay TA maintains its self-holding in the path of b contact-2 of A-TB2.

By opening the b contact of contact TA3, the 1-T
The signal that was being supplied to the coin knock via the path from contact b of A3 to NC side-4 of TB 3-3S 12 is cut off.

As a result, CoinMech stops accepting coins.

Also, by closing the a contact of contact TA3, 1-T
Relay XC is energized through the route from A3 contact A to XC to TB2 B contact 2, and contacts XC1, XC2, and XC3 operate.

By closing a contact XC2, relay XC becomes 1-X
One self is held in the path of b contact-2 of C2-XC-TB2.

In addition, by closing the a contact of contact XC3, 1-X
The solenoid S1 is energized in the path of the a contact point -3l of C5 and the contact point -2 of TA2, and in response to this, the product storage device takes out the product.

For example, the product sales command from terminal 3 is approximately 200 m5ec.
Set it to turn off later.

When this command expires (time tl), the power supply to the relay TA is stopped, and the relay TA is e.g.
After c, it is demagnetized and the contacts belonging to it are restored.

By opening the a contact of contact TA2, solenoid S1
When the current is cut off and the b contact of the contact TA3 is closed, a signal is again supplied from the terminal 4 to the coin knock, making it possible to accept coins.

This ends the product sale by the solenoid S1 (time t2).

Relay XC is still energized.

After an arbitrary period of time has elapsed from time t2, when coins are inserted up to the set price (time t3), a product sales command is issued from terminal 3.

As a result, the a contact of l-3-XC1 (closed because relay XC is self-holding) -NC side of 3S21-
Relay TB is energized in the path of contact b-2 of TB-TA2, and contacts TBI, TB2. TB3 works.

By closing the a contact TBI, 1-3-TB 1-
Relay TB is self-maintained through the path of b contact-2 of TB-TA2.

Further, by opening the b contact TB3, the signal from the terminal 4 to the coin mech is cut off, and the coin mech side stops accepting coins.

By opening the b contact of contact TB2 (at the same time, the a
(the contact closes), the relay XC is deenergized and immediately demagnetized, and the contact belonging to it is restored.

When the b contact of the contact XC3 is closed, the relay S2 is energized in the path from the b contact of 1-XC5 to the a contact of 32TB2, and the corresponding product is carried out in the product storage device.

At time t4) when the product sales command from terminal 3 is terminated, power supply to relay TB is stopped.

This allows the relay TB to be approximately 50 to 200 m5, for example.
After ec, it is demagnetized and the contacts belonging to it are restored.

By opening the a contact of contact TB2, solenoid S2
When the current is cut off and the b contact TB3 is closed, a signal is again supplied to the coin mech from the terminal 4, making it possible to accept coins.

This ends the product sale by the solenoid S2 (time t5).

This is also the end of one cycle of cross-selling of products.

By repeating this cycle, the products in the two product storage devices are sold alternately.

In addition, sold-out detection switches 5SII, 5S12. 5S21 and 5S22 are activated to prevent the relay from being energized when the products in the corresponding product storage devices are sold out, or when there are no products in any of the product storage devices, the terminal 4 is connected to the coin mech. By cutting off the signal, it gives a command to stop accepting coins and lights up the sell-out lamp L, but the details are omitted as they are outside the scope of this application.

As is clear from the above description, by using the control device according to the present invention, a vending machine that alternately sells products from two product storage devices can be obtained.

This prevents delays in the start of sales of the products in one of the product storage devices, and therefore reduces the quality deterioration of the products compared to conventional vending machines.

Furthermore, since there is no need to provide a push button for product purchase, this leads to cost reduction and is convenient for the customer.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a control device for a vending machine according to the present invention, and FIG. 2 is a time chart for explaining the circuit diagram of FIG. 1. TA, TB, XC...Relay, Sl, S2...
solenoid.

Claims (1)

[Scope of utility model registration request] In a vending machine having a second product discharging means which is connected in parallel between the power supply lines and carries out the discharging operation of the product in the corresponding product storage device by energizing each, the two products are each driven by a sales command signal. Two time-limited return relays having contacts for opening and closing paths of the product carrying means, respectively, and one instantaneous return relay having multiple sets of switching contacts that are opened and closed by the contacts belonging to these two time-limited return relays to perform switching operations, are provided. An automatic apparatus characterized in that switching contacts of each set of instantaneous return relays are inserted into each path of the two product delivery means and each path of the two time-limited return relays so that when one is closed, the other is opened. Vending machine control device.