DE1774010A1 - Device for the delivery of goods or objects, which is set in activity by at least one piece of money or a machine coin - Google Patents

Description

Device for the delivery of goods or objects through at least a coin or a machine coin is put into action The invention relates one that can be put into operation by inserting a coin or a coin Device for dispensing goods.

The device can be used for the delivery of any goods or objects be used, these being in solid or liquid form granules. In the following description specifically uses the device as an example shown for dispensing different amounts of beverages. In your In the most general embodiment, the device described first offers the following Possibilities: - You can add a certain number of drinks to different ones Deliver prices.

- The price of any drink can go through in a very simple way the designer or the contractor can be changed. - You can be one or more of delivering drinks free of charge. - You can have coins or tokens of different kinds Record categories.

It has a device for signaling the inserted coins or tokens with a visual display of the total value.

- It has a system of pre-payment, which enables the reimbursement of the inserted coins or tokens if their total value - downwards or upwards - does not correspond to the price of the selected drink, - It has a device for signaling the consumed goods or products , and the pre-payment scheme guarantees the repayment of the corresponding tokens or coins without having to hand over the other products beforehand. The pre-payment system enables the user of the device to make a different choice and to effect the reimbursement of his or her already inserted coin or coins, provided that he has not pressed the button or button corresponding to the choice of a product.

It is equipped with a device for dispensing water free of charge which, under certain conditions, is put into operation by pressing any button to select the goods, without the need to operate any additional organ. - It enables the delivery of a freely selected product to prevent the delivery of the other products is not disturbed.

An example of a possible one is given below with reference to FIGS Embodiment of a dispensing device or a machine explained which the prayers mentioned above.

To simplify the drawing and the corresponding description consider as an example a device which delivers beverages, their price a multiple of ten centimes is and the two different drinks can deliver. Of course, such a device can also be used by others Values be trained and deliver a different number of beverages.

It is also assumed in the example under consideration. that the statement the absence of one of the products results in the actuation of a switch that is controlled by an organ such as an altitude or weight indicator "while the The absence of the other product is determined by means of a counter that the number of quantities counts.

In the device described is to display the price of a Each product uses a group of rotary switches to control the working of the device to signal the total value of the inserted coins or tokens and to prevent a product from being dispensed. if this value does not match the price is equivalent to.

FIG. 1 shows the pre-collection method used in the example under consideration, which is referred to as the "lfizuzeinrichtung". This coin mechanism can accept coins of three different categories, namely coins of ten centimes, twenty gentimes and 1f2 fraric.

The coin device has a funnel 1 for .urfing the coins or tokens, which leads to a siet. @ E leads, which has a locking device 2, which can be retracted or sunk by means of a normally excited electromagnet 3. This selector also has several devices for checking the coins or tokens, these being checked with regard to the weights, the diameter, the strengths or the magnetic or non-magnetic properties of the metal. The coins can also be checked on the basis of their rebound.

At the exit of the selector there are three corridors or channels 4a, 4b, 4c, which are designed in such a way that they only have coins or tokens one given category. In the present case, gear 4a is for the coins of ten centimes, gear 4b for the coins of twenty centimes and the course 4c is intended for the coins of 1/2 franc.

In these channels contact tongues are arranged in the path of the coins, which come into action for a short time when each coin passes and then enter corresponding relay control: A first relay 5, the control tongue 51 of which extends into corridors 4a (10 centimes) and 4b (20 centimes), receives during passage one impulse for each coin of 10 and / or 20 centimes; a second relay 6 is arranged in such a way that it is only due to the action of the contact tongue 61 @ a Impulse received when coins of 20 centimes pass through aisle 4b; Finally, a third relay 7 only receives an impulse when coins of 1/2 Franc in corridor 4c pass contact tongue 71.

At the exit of the aisles or channels 4a, 4b, 4c, the coins fall into organ called "Aufrhmer", in which they remain on hold.

This sensor consists of a kind of antechamber, which consists of two side walls 91 and 92, which are articulated at 101 and 102, respectively. The two side walls are at their lower part by means of two springs 111 and 1'12 in mutual Contact held so that the antechamber 8 is normally closed. Will however, when solenoid 121 is energized, side wall 91 is attracted and removed from the side wall 92, whereby an opening of the antechamber 8 takes place and the coins contained in the antechamber are directed into the cash box 13. Will in contrast, if another electromagnet 122 is energized, the side wall is removed 92 from the side wall 91, wherein the antechamber 8 is also opened, but the Coins contained in it are directed into an IMckzahlrutgche 14, at the exit The user can receive them again from the customer.

Referring to FIG. 2, the mode of operation will now be described the Overall device described.

First of all, the device is intended to set and display prices of the various drinks are explained.

For each commodity or each product, the device has a manually controllable switch that can be operated by the designer or entrepreneur and has as many connections as different prices can be set for the product. In the present case, ten connections correspond to prices that differ from one another by ten centimes and go from ten centimes to one franc, with a "free" connection G and a "zero" connection 0 being provided. The entrepreneur is the lever of this switch in the purchase he contract or contact that indicates the price at which the talking drink wants to sell.

In the drawing there is only one such switch '15, the first Product I corresponds, and a second switch 16 is shown, which has a second Product II corresponds.

With the exception of the "zero" contact, all contacts of the same name with one another and with the contacts of a rotary switch 17, which is the only switch of this type for the entire device, and whose step-by-step switching is controlled by an electromagnet 18. Finally, there are the contacts of another rotary step switch 19, of whose Ai-t only one is also present in the entire device and whose sliding contact is mechanical with that of 1? is connected, each connected with light indicators like 20, which show the prices from 10 to 10 centimes. The device according to the invention furthermore has an element, referred to as a "combiner" and shown in FIG. 2a, which consists of a motor 20a which sets a cam 21 in rotation. The control roller 22 of a microcontact rests on the circular protruding part of the cam for the entire duration of the dispensing cycle. The contact 22a is kept closed during this entire time, while the contact 22b is kept open. At the end of the dispensing cycle, the roller falls into the recess of the cam, causing the cycle to stop due to the opening of the contact @ 2a. That Closing the contact 22b makes it possible to feed the motor again immediately, s6 that the cam is driven further, whereby the roller can again assume its starting position on the projecting part of the cam which is formed in the shape of a circle.

The Blektromagaet 3, which is used to lock the coin mechanism, is normally energized and lets the coins or tokens thrown in the 5 times higher than the coin mechanism through. Finally, a relay 23 called a "cycle relay" controls the various processes in accordance with the dispensing cycle of a beverage.

A drink is selected by pressing a corresponding one Button or a corresponding button. Each of these buttons is special Relay and a detector that detects the presence of the corresponding beverage assigned. Further organs and arrangements of the device are based on the following Description of various examples of operational cases explained.

First, consider an example where the price of Product I is set at twenty centimes. The lever of the switch 15 is thus of the or the entrepreneur set to the second contact marked with twenty centimes.

The user will insert either a twenty gentimes piece or two ten centimes pieces into the funnel 1 of the coin mechanism (FIG. 1). In the first case, the following processes will take place: The coin falling through the "20 Centimes" slot first hits the contact tongue 51 of the relay 5 (Figures 1 and 2) and activates it, whereupon the relay 5 receives an impulse and briefly makes its contact 5a ( Figure 2) closes. This has the consequence that a pulse is sent into the electromagnet 18, which the step switch 1? and 19-controls. The contact arm of these two switches thus advances one step and reaches the first contact. This creates the following circle: - Terminal A of the supply source, - Indicator "10 Centimes" that lights up - Contact arm and first contact of switch 19! = Indicator 24, which displays a display such as "the device has recorded the sum of ..." ? connects, via contact 1 of this switch to contacts 1 of switches 15 and 16, which are not connected to anything, since the lever of this switch 15 is on contact 2 (20 centimes) after acceptance. It could now be that the lever of the switch 16, which corresponds to the unselected product, is set to the "10 centimes" contact, but in this case the circle would be interrupted by the open normally closed contact IIa of the button 1I, as it is also assumed this button was not pressed.

In the further course of its fall through the slot assigned to it in the coin device, the coin then hits the contact tongue 61 of the relay 6 and actuates this relay. The contact 6a (Figure 2) of this relay is closed and sends a new pulse to the electromagnet 18, which switches the rotary switches 17 and 19 again by one step. the contact arms of these switches to the Contact twenty centimes corresponding wak @ arrive. If you follow the circle that has now been built up, you can see that indicator 20 "10 centimes" goes out and indicator "20 centimes" lights up, while indicator 24 "the device has recorded the sum of ..." lights up.

From the exit of this latter indicator, the circle runs via contact 2 of 17 to contacts 2 (20 gene from 15 and 16.

The He $ el, or the contact arm of 15, was set to this contact, as already mentioned, since the price of drink I was set at 20 centimes. As for the contact arm of the switch 16 corresponding to drink II, if the price of this drink is not 20 gentimes, it is on a different contact than 2, and in this case the circuit at the entrance of this switch is broken, or it can are also on contact 2 if the price of drink I2 is the same (20 centimes) "4 as that of drink I, but in this case the circuit at the output of switch 16 will be broken due to the assumption made, that the user of the device has not pressed button II, so that contact IIa of this button is open.

If the user had inserted two 20 centimes coins instead of a 20 gentimes coin, so the contact tongue 51 of the relay 5 would have been actuated twice and the electromagnet 18 would also have received two impulses. called switch '!? and 19 would be in the same position as in the previous case.

From the output of the contact arm of the switch 15 "to that of the user corresponds to selected product I by pressing button I, the circle runs over the closed contact 23b of the relay 23x which is in the rest position the Contact Ia of the pressed cap I to relay 25, which indicates the delivery of the selected product, or the selected goods I must control.

In order for this relay to be effectively energized, however, another one must be used Condition must be met. This condition is that the product I in the device must be available and must not be used up. This condition is enforced by the The counter 26 actuating the switch 27 and performing a count is realized. A number is displayed on the counter 26 which corresponds to the number of dosed quantities, which the container of this material contains when it is substantially full. For each pulse received from relay 25, this counter subtracts one unit, and when it reaches zero, it opens the contact 27, whereby the circuit of the relay 25 is interrupted, and also causes the normally open contact Ib of button I the lighting of the indicator 28, which makes the display appear "Iaas von The drink you selected is no longer available. Please make another choice or have the amount paid back ".

If this is not the case, i.e. the button I corresponds to Product not run out, the feed circuit of the relay 25 is fed. The relay 25 is thereby through its contact 25b and the one in the rest position Contact 29b held in working position. The one in rest position, i.e. open Contact 29b belongs to relay 29, which corresponds to the other product II, this being Contact thus prevents the delivery of the product II during the delivery of the product I.

At the same time, the one in the working position causes. ie closed contact 25a of 25 via the idle contact 22a of the cam 21 the supply of the cycle relay 23 and the electromagnet effecting the acceptance of money .12. This electromagnet opens the antechamber 8 of the coin mechanism (FIG. 1) and guides the coins located in this chamber into the cash register housing 13. The relay 23 opens its corks 23b and 23c to cause the switches 15 and 16 to be released and passes through its cork 23a, 1 feeds the motor 20a of the combiner. This starts and drives the cam 2't. At the end of the cycle, the roller 22 opens the contact 23a, whereby the supply of the motor 20a is interrupted. The contact 23a2 goes back to 23a1, but at the same time the cam 21 closes the contact 22b, whereby the supply of the motor via the normally closed contact 23a1 is maintained so that the roller can again take up its starting position.

The contacts of all relays such as 25, 29, the different beverages correspond and arigeordered in series with the cycle relay 29 are, are all connected in parallel so that the Cycle independently of the selected drink.

The selection buttons all have an additional contact such as Ic, IIc on, all in parallel and together via a switch 'l3 with a solenoid valve 31 are connected in series, which controls a water delivery. By means of this device can be done for free by pressing any key without any other manipulation chilled water can be obtained. By opening the switch 30, this possibility can be eliminated if the device is only to deliver something against payment of 44: e.

The price selection switches such as 15, 16 can have a contact G which is directly connected to the power source of the device, whereby it is possible, if desired, to set the contact lever of one of the switches to the contact in question free of charge and without inserting a coin dispense the appropriate drink by simply pressing the button. he These switches can be the same with a "zero" contact be provided that is not connected to anything. If the contact arm is set to this contact, the corresponding beverage cannot be dispensed because the circle of the selection key is interrupted. However, this does not affect the delivery of the other beverages in any way.

The rotary switch 17 sets the automatic return of the coins or make sure to the user in the event that this is in the device Mainzen or has inserted stamps of an amount greater than the price of the most expensive of the drinks offered for selection. For this purpose, the contacts are the one such a high amount corresponding order directly to the electromagnet Money return 122 (Figures 1 and 2b) connected in this way! that when the rotary switch When scanning arrives at such contacts, this electromagnet is excited.

In addition, the rotary indexing switches are controlled by another electromagnet 32, which ensures that they turn down to zero. This electric magnet is fed via a working contact of a second cam which, like cam 21, is attached to the shaft of the motor 20a, the combination mandrel. However, this cam 33 is angularly displaced with respect to the cam 21 in this way! that its normally open contact 33a is closed at the beginning of the ZT cycle while the normally closed contact 22a is still closed . The "setting of 17 and 19 to zero causes the BahauaeiOhan na # 20 and 24. The device according to FIG. 2 is equipped with a special system relating to the use of ½ franc coins. For reasons of Working time, a device is used in this special system which, when every 1/2 franc coin is inserted, emits a sequence of five pulses which actuate the drive electromagnet 18 of the rotary switches 17 and 19. This device consists of a motor 34 which has a cam 35 with five lugs or arms (in the example under consideration) and another cam 36 drives.

This device works as follows: When a 1/2 franc coin the contact tongue 71 has actuated and thus energized the relay 7, the contact is made 7a closed and the motor 34 fed via the normally closed contact 36a. The engine opens its connector 36a, but is fed on via its contact 36b. Simultaneously the cam 35 makes one revolution and actuates the contact 35a five times, whichever five pulses in the electromagnet 18 sends. The cam 35 then returns to spring the rest position back, and the motor 34 stops.

The device according to the invention can also have various additional devices have, as ü.B. a hand control button 37, which runs parallel to the Coin contacts is arranged and it thus allows the device without inserting of coins to try out.

It can also be provided a button 38, the direct The motor 20a of the combiner can be fed without using the cam contacts and which is used to regulate the latter.

Likewise, a button 39 can be provided which makes it possible to to repay the coins contained in the antechamber 8 manually, provided the relay 23 is not energized by pressing one of the buttons I or II. The the Repayment corresponding circle is replaced as follows: - Terminal B the power source, - button 39, - electromagnet `I22 for returning money, - terminal A the source of food.

In order to prevent the subsequent consumer receives no Gratisabgebe, each performed manually repayment process is accompanied by a process of resetting the respective contact arms of the switches 17 and 19 to zero, the two transactions in question are caused by making contact. 39 The circuit for resetting to zero is then structured as follows: - Terminal B of the supply source, - Button 39, - Position 33b of contact 33, - Electromagnet 32 for resetting to zero, - Terminal A of the supply source.

It is easy to see that the device works in a similar manner would work if the user pressed the button II corresponding to the product II instead the key I would have pressed, as was assumed in the example described. In this case, the switch '16 would ensure the supply of the relay 29.

With reference to FIGS. 3 to 4b, a simplified embodiment of a dispensing device or a machine will now be described, which was designed primarily, but not exclusively, for dispensing different products that were sold at the same price.

This embodiment differs from the one above, among other things described embodiment by the AuUu their coin mechanism. figure 3 shows an overall circuit diagram of the dispensing device and FIGS. 4a and 4b Views of the coin device represent: The machine, or the dispensing device according to Figure 3 shows, for example, two electric pumps EPA and EP2! the different Deliver products. The user can choose one of these two products by calling either on the push button PI which controls a relay S, or on a relay S2 presses the control button P2.

Devices for determining the presence of the product in the container are assigned to the containers containing the two products. These devices control switches SSi and SS2, which assume a position SS1a, SSlb when there is a sufficient amount of the corresponding product in the container, and move into another position SS1b, SS2b when the product is no longer available in sufficient amount . Such facilities, or. Detectors are known per se and can be designed in different ways and work either as a function of the weight of the product or as a function of its height in the respective container . One of the main purposes of the invention is to get the coin only in the Kasrierf »b of the tlfatti = iobtur4 fall let when the wetting device dos counted by the user Products indicates9 that the product is pre-eminently yes . For this purpose, the coin mechanism shown in FIGS. 4a and 4b is used in the machine according to the invention. This coin device consists of two substantially flat side walls 43 and 44 which are connected to one another at their upper part by an elastic member 45 in such a way that a downwardly inclined chute is formed in which the coin can roll in order to then enter the Cash box 46 to drop. However, when one of the side walls is removed from the other, the chute opens and the coin falls directly into a funnel 50 which returns it to the user or customer.

A coin device constructed in this way is known. The further development of such a device according to the invention consists in additionally using two electromagnets. One magnet, which is designated in its entirety with EYM (electromagnet for locking the coin mechanism), has a movable .Anker 47, which is provided with a finger 48, which engages in the slide when the electromagnet is not excited, via an in the side wall 43 (Figure 4a) provided hole. In this way, the finger 48 forms a stop which stops the coin and prevents it from continuing its course to the box 46. When the solenoid BM is energized and its movable armature attracts 47 (Figure 4b), this Binger 48 is retracted and released the piece of money, which then falls into the box 46 and then temporarily While of passing a "Münzkontakt" 02 (Figure 3) mentioned contact operated. The EM (electromagnet for return of money) designated other electric magnet has a plunger core 49, which is mechanically connected to the movable side wall 44 in such a way that the side wall 44 moves away from the side wall 43 when the electromagnet is energized and also the coin from the slide in a TricbSar 50 drops from which it is returned to the user.

The dispensing device according to FIG. 3 is fed by a current source which is connected to terminals 41 and 42. It is equipped with a revolving device MG called the "combiner" which makes one complete revolution to control the operations of a cycle for dispensing beverages. At the end of the rotation, this combiner actuates a roller 0 "which then opens a contact 01 and closes a contact 0lb. A relay RC called a" cycle relay "is fed from the power source via a make contact from OB and the break contact 01 from 01. This Relay RC locks itself through its normally open contact RCa and through its contact RCb closes the feed circuit of the combiner MG, which begins to run.

The dispenser also has a relay 8Y connected in series with the normally closed contacts Flb and P 2b of the selection Press studs 2, and P2 is connected in series in such a way that it immediately ceases to excite is when any of these buttons is pressed. Through its normally closed contact RV a, this relay then closes the feed circuit of the electromagnet EVM for locking the Münzemrichtung, in such a way that the coin contained in this is released will.

One of the following circuits is set up: Terminal 41 of the supply source, normally open contact RC2 of relay RC, normally open contact Sla or S 2a of relay Sloder S2, contact SS la or SS 2a of the devices for determining the presence of products, terminal 42 of the supply source.

Furthermore, one of the following circuits is set up: Terminal 41 of the supply source, normally open contact RGc of relay RC, normally open contact from Sla or S 2a, pump EP1 or E'2, contact SSla or SS 2a9 terminal 42 of the supply source. In the following, the mode of operation of this device is wrote. w It is intended to explain the normal operation of the priority in the sunlivhst way verde4 ie the case, four containers sew the selected product is normally filled / and consequently the corresponding contact 881 and SS2 assumes the position SSla or SS2a. The user inserts a coin into the coin mechanism! and this is done by cbn finger 48 dea. at rest located electromagnet EM stopped, and in Waiting; ellun held. It is now assumed that the user presses the PI presses. The following circuit is then closed: Terminal 42 the supply source, contact SS.,, relay 8 ,, normally open contact Pla, Normally closed contact Slb, normally closed contacts S2a and 81 a, normally open contact RCc, Terminal 42 of the supply source. The relay Q31 then opens; its Normally closed contacts and closes its normally open contacts; uröd especially special his contact 8l a, on the one hand the maintenance of the hxt this relay in the operating position and on the other hand the connection connection of a clamp of the pump EPI with the clamp. 4r1 of the food well guaranteed, whereby. the other terminal of the pump terminal 42 of the source through contact 881. is. The pump g'1 thus delivers the one selected by the user Liquid. About this prevents the fact that the contacts Sla and SIh are brought into working position, the supply of the relay . S2 even if the user had / on button P, 22; dxÜKT- te. The actuation of a button thus electrically locks all other buttons. At the same time the normally closed contact ;; P 1b opens and interrupts the supply of the relay RV, whose in the rest position coming contact RV a closes the excitation circuit of the electromagnet EVM, which releases the coin so that it falls into the cashier box 46.

Let it now be assumed that the one selected by the user The container containing the beverage, corresponding to the pressing of the button P1, is empty. In this case, the contact of the corresponding detector SS1 takes the position SS 1b a. Neither the relay S1 nor the pump EP1 can now be fed because their connection to terminal 42 of the supply source at SS 1a is interrupted.

The supply of the relay RV is as in the previous case by interrupted, causing the coin / excitation of the electrical magnet EVM is released, but at the same time the electromagnet ERM is excited by the following greis: Terminal 41 of the supply source, electromagnet FM, normally open contact Plb, contact SS 1b, terminal 42 of the supply source.

The electromagnet ERM thus works by spreading the side walls the opening of the chute of the coin mechanism and the coin falls into the funnel 50 and will be refunded to the user. The organs of the mint are thus arranged in such a way that the coin falls through before she would have had time to roll to the end of the slide. At the same time lights up an indicator connected in parallel to the electromagnet ERM on and illuminated a display such as `` 3as the drink you selected is no longer available. To meet Please make another choice '.

Claims (2)

P atentans pr ü c he 1. Device for the delivery of products or objects, which is put into operation by throwing at least one coin or an atomic coin into an organ called "Münzein-direction", wherein a cycle of operations for the selection and delivery of the Product or object is triggered, characterized in that the coin device has means which make it possible to keep the coin or token on hold for a period of time while the other organs of the device check the actual presence of the product or object selected by the user, so that the coin or token is refunded to the user in the event that this product or object is missing. 2. Device according to claim 1, characterized in that when the device is designed to receive coins of different categories, the coin device has a funnel common to all coins, followed by a selection device consisting of a certain number of channels, which can only accommodate a single coin category, and that these channels each have at least one contact which briefly actuates an electromagnet when the corresponding coin passes through. 3. Apparatus according to claim 2, characterized geke n. N draws that at the output of the selection device a "pickup" called organ is arranged, which consists of an antechamber in which the coins or tokens are held in waiting and controlled their opening can be used to direct the coins or tokens either into a cash register case or into a refund chute. 4. Apparatus according to claim 3, characterized in that the transducer consists of two side walls which are articulated at their upper part and are normally in contact at their lower part, and that these side walls in an independent manner under the action of one together special electromagnet / can be removed to the Realize redirection of the coins or tokens in the cashier housing or in the return slot. 5. Apparatus according to claim 1, characterized in that the coin mechanism has a guide chute for the coin, and that the organ that puts this coin on hold consists of a finger that is connected to the armature of an electromagnet and almost m # can be inserted into the path of the coin in the slide. 6. Apparatus according to claim 5, characterized -NET GEK ennzeich 9 that the chute consists of two side walls, which can be under control of a second electromagnet away from each other. Device according to Claim 4, characterized in that the electromagnet guiding the coin to the return chute is fed via a detector for determining the absence of the product selected by the user. B. Vomi.rhtung according to claim characterized in that the detector for determining the lack of a product consists of a device for determining the weight or the height. 9. Apparatus according to claim?, Characterized in that the detector for determining the lack of a product consists of a subtracting product or quantity counter. 10. The device according to claim 1, characterized in that an indicator is provided which lights up in the event of a product being missing in order to encourage the user to make another choice. 11. Apparatus according to claim 1, characterized gekennze ichnet that is for each category of dispensed products a manually adjustable marking switch is provided, the different dene contacts correspond to the consecutive integer Bettingen multiples of the smallest value that can be accepted by the device, wherein the contact arms the switches are each connected to the corresponding product selection buttons. 12. The device according to claim 1'1, characterized gekennzeic hn et that the manually operable switches have a Korfakt that enables the triggering of the dispensing operations without the Kotakte of the coin mechanism are passed through, so that it is possible to choose and free of charge to deliver all or part of these products. 13. The apparatus according to claim 11, characterized in that the manually operable switches have a dead contact in order to enable the dispensing of one or more products to be blocked without the dispensing of the other products being affected. 14. Device according to claims 1 and 11! The fact that the coin mechanism has at least one contact which is briefly actuated when a coin passes and then feeds a relay, these relays supplying a control electromagnet of a stepping shell as many successive impulses as those received and in the receiver Coins held in waiting position represent a multiple of the minimum value according to claim 11. 15. Vom.chtung according to claim 14, characterized in that devices are provided which ensure that coins of a relatively large value cause a direct switching of the step switch by a corresponding number of steps that these devices consist of an auxiliary motor, which is fed by the through contact of the coin in the coin device and drives a cam which is designed in such a way that it causes a corresponding number of closings of the feed circuit of the control electromagnet of the stepping motor. 16. A device according to .Ansprüchen 11 and 14, characterized ge -kennzeichnet, that means are provided to control the energization to prevent a particular for a product selection relay when the step switch and the manually operable switch are not on the corresponding contacts. 17. Device according to claims 11 and 14, labeled in characterized -zeichnet that a group is provided by signaling chart characters that are designated by successive multiples of the minimum value and that these show signs are connected to the successive contacts of a contact plate of the step switch in a way that gradually the value of the coins finally put on hold in the coin mechanism is displayed. 18. The device according to claim 1 ?, characterized in that the group of indicators is assigned a flag which provides a display such as "The device has recorded the sum of ...". 19. Device according to claims 2 and 14, characterized in that the step switch has at least one contact connected to the electromagnet for the return of money in order to refund the coins when the total amount of these coins exceeds the value of the product with the highest price. 20. The device according to claim 2, characterized in that a button operable by the user is provided, which allows the money return - to feed the electromagnet as long as the cycle of dispensing a product has not yet started. 21. Device according to claim 2, characterized et gekennzeic hn that an interrupter is provided which allows the passage of the coins contacts to short-circuit, in order to permit testing of the device without inserting coins. 22. Vorri ch i; ung according to claim 11, characterized in that the various operations of the dispensing cycle are controlled by a set of cams which is driven by a motor. 23. Device according to claim 22, characterized i gekennze -NET that the start of the engine and the power is the Geldaunahmerelais controlled by pressing a product selection key after the operations for verification of compliance with the eingestel7ben price and the presence of the product were carried out. 24. Device according to claims 10, 11 and 18, characterized in that a cam which is becoming sampled at the beginning of each dispensing cycle causes the step switch to be reset to zero and the indicator characters to be deleted. 25. Apparatus according to claim 11, characterized -NET gekennzeich that a contact is provided. is, which feeds a water dispensing solenoid valve via contacts connected in parallel and to all product selection buttons in such a way that it is possible to receive chilled water free of charge by pressing any button before each throw.