ITBO20130052A1 - DISTRIBUTOR OF BEVERAGES AND WATER SUPPLY TANK FOR SUCH DISTRIBUTOR - Google Patents

Description

DESCRIPTION

BEVERAGE DISTRIBUTOR AND WATER SUPPLY TANK FOR SAID DISTRIBUTOR.

The present invention relates to a beverage dispenser and a water supply tank for said dispenser.

The present invention therefore finds main application in the production of vending machines, both automatic and manual, and in the automatic distribution sector, so-called of vending.

The current market of beverage dispensers (home, office and small communities) is mainly divided into hot beverage dispensers (coffee, tea, etc ..) and water dispensers.

Hot drink dispensers (automatic and otherwise) are mainly characterized by the presence of dispensers that are fed by drawing water from â € œtinsâ €, which can be filled either with water from the aqueduct or with water with low mineral content.

On the contrary, water dispensers (automatic and otherwise) are mainly characterized by the presence of tanks (so-called â € œboccioniâ €) fed with low-mineral water or duly treated water from the aqueduct.

Disadvantageously, however, both distributors are lacking from the point of view of the possibility of maintaining excellent chemical and bacteriological characteristics of the feed water.

The distributors of the known art are in fact lacking from the hygienic point of view, as the conservation of the water inside the trays or tanks (so-called â € œboccioniâ €) can be guaranteed only for short periods, being the characteristics of the € ™ supply water to the dispensers changes from the moment they are stored.

For example, the stagnation associated with a low or unfriendly use and the thermal variations facilitate the proliferation of bacterial colonies already existing in the water itself, leading to a degeneration of the bacteriological level after a few days, even in a framework of normal cleaning and sanitization of the parts in contact with the environment.

As is known, in fact, water is an important vehicle of biological contaminants as even a water defined as `` drinkable '' has a content of bacteria (albeit low) which, in the temperature range in which the distributors object of this application operate, they find the ideal environment to proliferate.

These colonies of bacteria, spores and toxins could be brought to destruction only by bringing the water to a temperature> 121 ° (in 15 minutes, i.e. downstream of pasteurization), which however is in strong contrast also with the ™ use of hot drink dispensers.

In fact, the teachings are known according to which to ensure, in particular, excellent quality coffee, but generally all common hot drinks, the water temperature must be brought below the boiling point (generally the dispensers in use operate with values between 85 and 92 °), as the reaching of temperatures close to 100 ° C (boiling point of water at ambient pressure) would determine a bitter coffee, with unpleasant consequences to the taste . Furthermore, in the case of hot drink dispensers, both the water coming from the water mains and the low-mineral water are not suitable for making good coffee, also causing unpleasant consequences to the taste.

In fact, the water that flows from the taps of the water mains, even if it has very high purity and quality requirements, generally contains a high percentage of temporary hardness given by carbonates.

The picture does not change even when using low-mineral water commonly on the market, whose overall hardness values are also generally not compatible with good quality drinks.

Moreover, in the case of water that flows from our taps, the high presence of chlorine causes malfunctioning and damage to the internal parts of the regulators which limit their useful life and at the same time determine a high maintenance cost.

Alternatively, mainly with regard to water distributors, bottles or so-called c.d. are often used. â € œflowersâ € in PET and / or similar plastic materials which are turned upside down and connected to the vending machine frame so that the product is fed by gravity, in a necessarily â € œpressurizedâ € environment.

To solve the disadvantages listed above, to date various kits are marketed, proposed by the manufacturers of dispensing machines as well as by companies in the â € œvendingâ € sector, aimed at cleaning and filtering water, which in addition to complicating the maintenance of machinery and significantly increasing management costs, only marginally solves the problem related to bacterial contamination, â € œhardnessâ € and calcification of the water.

In this context, the technical task underlying the present invention is to overcome the aforementioned drawbacks of the known art.

In particular, the purpose of the present invention is to provide a beverage dispenser capable of maintaining the initial characteristics of the water used unaltered until it is dispensed, ensuring maximum safety in the field of food hygiene and product quality. disbursed.

Therefore, the purpose of the present invention is to provide a vending machine capable of dispensing high quality beverages, first of all from the chemical and bacteriological point of view, but also from the point of view of taste, without recognizable odors and aromas.

Furthermore, the object of the present invention is to make available a beverage dispenser with an increased useful life and reduced management and maintenance costs.

The specified technical task and the specified purposes are substantially achieved by an automatic beverage dispenser and a water tank for said dispenser comprising the technical characteristics set forth in one or more of the appended claims.

Further characteristics and advantages of the present invention will become clearer from the indicative, and therefore non-limiting, description of a preferred but not exclusive embodiment of a beverage dispenser and a water tank for said dispenser, as illustrated in the accompanying drawings in which:

Figure 1 illustrates a schematic view of a first embodiment of a tabletop-type beverage dispenser, object of the present invention, in which some parts are removed to highlight others;

Figure 2 shows a first alternative embodiment of a beverage dispenser according to the present invention;

Figure 3 shows a second alternative embodiment of a beverage dispenser according to the present invention;

- Figures 4 and 5 show two different operating configurations of a first embodiment of a water supply tank for a beverage dispenser according to the present invention;

- Figures 6 and 7 show two different operative configurations of a second embodiment of a water supply tank for a beverage dispenser according to the present invention.

With reference to the attached figures, the numbers 1, 21 and 41 indicate different embodiments of a beverage dispenser object of the present invention.

With the expression `` beverage dispenser '' we mean any beverage dispensing machine, both hot and cold, capable of dispensing the product both automatically and with manual control intended for large communities, offices, homes and small communities, do not feed directly to the water mains.

It should be noted that the expression `` beverage dispenser '' refers to both large and automatic beverage dispensers (such as the one illustrated in figure 3), and small dispensers (office & home, figure 1 and 2) not necessarily equipped with a multifunction mixer, typically â € œtabletâ €.

In this regard, it should be emphasized that figure 1 illustrates a hot drink dispenser, typically coffee, of the â € œtableâ € type.

Alternatively (figure 2) in the spirit of the present invention, both automatic and manual water dispensers are included, provided with a water tank placed, for example, on the top.

Again, figure 3 shows an automatic vending machine for hot drinks, such as coffee, cappuccino, coffee, milk, tea or chocolate, capable of autonomously mixing and infusing products following a selection by a user. Such distributors are typical inside offices or public places.

In general, the dispenser 1, 21, 41, object of the present invention comprises a support frame 2, 22, 42 which is associated with at least one dispenser 8 suitable for dispensing a drink.

This dispenser 1, 21, 41 also includes a tank 6, 26, 46 of water â € œWâ € that can be connected to the dispenser 8, 28, 48 to make the drink, either directly (if the drink is water) or subsequently mixing with infusion products, as will be better clarified below.

The tank 6, 26, 46 is associated with the frame 2, 22, 42, and can be rigidly connected to it or by means of suitable deformable ducts.

In this regard, the frame 2, 22, 42 is preferably provided with at least one support 9, 29, 49 equipped with a junction portion 9 which can be coupled to a water tank 6, 26, 46 â € œWâ €.

According to the invention, the tank 6, 26, 46 is of the disposable type, or c.d. â € œuse and throw awayâ €.

The term `` disposable '' in this text indicates a tank 6, 26, 46 that cannot be reused once emptied, unless a total and / or partial recovery, followed by a new filling cycle by the manufacturer (according to appropriate recycling procedures).

Therefore, the tank 6, 26, 46 can be removably connected to the support 9, 29, 49, in particular with the junction portion 9a, 29a, 49a thereof. In a preferred embodiment, the tank 6, 26, 46 extends along its own main direction â € œBâ € between a first end 6b, 26b, 46b, preferably leveled to allow the support of the tank 6, 26, 46 when It is not associated with the distributor, and a second end 6a, 26a, 46a, equipped with a water release (or dispensing) portion â € œWâ €. In the illustrated embodiments, the reservoir 6, 26, 46 is substantially shaped like a bottle or â € œnipâ € and the release portion defines a neck, or a terminal bottleneck into which the water about to escape is channeled.

Preferably, the release portion 6a, 26a, 46a can be connected to the aforementioned junction portion 9a, 29a, 49a of the support 9, 29, 49, preferably by means of quick coupling 13, 33, 53 (shown schematically).

Advantageously, in this way it is possible to maintain the seal between the tank 6 and the junction portion 9a, 29a, 49a of the support 9, 29, 49, without the external air contaminating the water â € œWâ € allâ €. € ™ inside of the tank 6, 26, 46.

Therefore, the quick coupling means 13, 33, 53 are configured to maintain the seal of the connection, both by means of gaskets and, possibly, valves.

The quality of the water circulating inside the dispenser 1, 21, 41 is thus guaranteed, making it possible to connect the pre-filled tank 6, 26, 46 with water with optimal characteristics for making beverages.

It should be noted that with the expression `` quick coupling means '' we can mean:

- flat face grafts,

- screw couplings,

- valve couplings,

- elastic interlocking organs,

or other known rapid connection means.

Preferably, to facilitate connection simplicity, the release portion 6a, 26a, 46a of the tank 6, 26, 46 and the junction portion 9a, 29a, 49a of the support 9, 29, 49 define a male-female coupling, in which the dispensing portion 6a, 26a, 46a defines the male and the junction portion defines the female.

It should be noted that the tank 6, 26, 46 has a structure predisposed to deform (ie collapsible) along at least one of its own development direction â € œBâ € in order to reduce its volume.

More precisely, the distributor 1, 21, 41 includes means 11, 31, 51 suitable for deforming said tank 6, 26, 46 along this direction of development â € œBâ € to reduce its volume in proportion to the quantity of residual â € œWâ € water inside the tank 6, 26, 46 itself.

Therefore, the distributor 1, 21, 41 is configured to reduce the volume of the tank 6, 26, 46 in proportion to the water consumption â € œWâ €, thus overcoming the need to introduce air (drawn from the environment) to the Inside the tank 6, 26, 46 to allow the water to escape (compensating for the atmospheric pressure).

In other words, the quantity of air inside the tank 6, 26, 46 (when the packaging of the latter is not `` under vacuum '') remains constant throughout its useful life, preventing it from being Introduction of air from the environment can contaminate its contents, favoring the proliferation of the bacterial load in the water â € œWâ €.

Therefore, to ensure the supply of the beverage dispensers according to the present invention, it is not necessary to have a pressurized tank (ie into which air at atmospheric pressure is introduced) to allow dispensing.

Preferably, the means 11, 31, 51 suitable for deforming said tank 6 are configured to bring the first end 6b, 26b, 46b closer to the second end 6a, 26a, 46a during said deformation of the tank 6, 26, 46. In other words, the means 11, 31, 51 adapted to deform said tank 6, 26, 46 contribute to deform the tank itself from an undeformed configuration, of maximum bulk, in which the first end 6b, 26b, 46b is distal from the second end 6a, 26a, 46a, to a deformed configuration, of minimal bulk, in which the first end 6b, 26b, 46b is proximal to the second end 6a, 26a, 46a.

In a first embodiment (illustrated in the figures), the means 11, 31, 51 suitable for deforming the tank 6, 26, 46 comprise a suction unit 11a, 31a, 51a operatively interposed between said tank 6, 26, 46 and the dispenser 8, 28, 48.

This suction unit 11a, 31a, 51a is configured to generate a depression in correspondence with the release portion 6a, 26a, 46a of the tank 6, 26, 46 in order to generate a flow of water from the tank 6, 26, 46 towards the dispenser 8, 28, 48, deforming the tank 6, 26, 46 along its development direction â € œBâ € to reduce its volume in proportion to the quantity of water â € œWâ € aspirated.

Therefore, the suction unit 11a, 31a, 51a is in fluid communication with the inside of the tank 6, 26, 46 and comprises means for generating the vacuum that can be operatively activated (following the selection of a beverage by the ™ user) to generate the aforementioned depression in proximity to the release portion 6a, 26a, 46a (neck of the tank) in order to suck water from the tank 6, 26, 46.

Preferably, the suction unit 11a, 31a, 51a comprises at least one volumetric pump 11b, 31b, 51b.

Alternatively, the suction assembly 11a, 31a, 51a could comprise (not shown) a vibration pump.

In embodiments not shown, the means 11, 31, 51 suitable for deforming the tank 6, 26, 46 are configured to mechanically act in compression on the tank 6, 26, 46, to reduce its volume. In these embodiments, therefore, the means 11, 31, 51 are mechanical compression means

More precisely, in these embodiments, the means 11, 31, 51 comprise a presser operatively associated with the first end 6b, 26b, 46b of the tank to compress it, bringing it closer to the second end in proportion to the water consumption â € œWâ €.

The presser can be defined by an active actuator, such as a hydraulic / electric cylinder, or by a weight associated with a guide developing along the â € œBâ € development direction.

This contrast â € œforceâ € must be sized to compress the tank 6, 26, 46 in the deformed configuration, with minimum bulk. Preferably, the tank 6, 26, 46 is made of a deformable material and preferably has a geometry such as to favor the collapse of the structure (ie the deformation) along a preferential direction.

In one embodiment, to favor the deformability of the tank 6 along the development direction â € œBâ €, it has a deformable bellows structure along a direction joining the ends 6a, 6b, corresponding to the development direction â € œBâ € itself.

Advantageously, this facilitates the deformation of the tank 6 during the action of the means 11, 31, 51 suitable for deforming it (suction unit or presser).

More precisely, the bellows structure of the tank 6 is defined by at least one side wall 6c, 26c, 46c developing with a succession of apexes and grooves. Preferably, each apex defines a cusp to facilitate its deformation.

Note that, even in the condition of minimum bulk (when the tank is not "vacuum packed"), it occupies a volume full of air. Consequently, in the undeformed configuration of maximum bulk it is filled with a quantity of water `` W '' equal to the difference between the volume of the tank in said non-deformed configuration and the volume of the tank in the deformed configuration (or of minimum bulk) .

In other words:

VW = Vmaxâ € “Vmin

In which:

- VW corresponds to the volume of water â € œWâ € inside the tank 6 before use;

- Vmax corresponds to the (internal) volume of the tank 6 in an undeformed configuration, or of maximum size;

- Vminc corresponds to the (internal) volume of the tank 6 in a deformed configuration, or of minimum bulk.

It should be noted that, in an alternative embodiment (Figures 6 and 7), to allow the deformability of the tank, it has a membrane 60 without its own stiffness, confined inside a rigid casing 61.

Therefore, in this embodiment, the tank is defined by a bag housed inside a rigid casing 61 and collapsible in all directions, being devoid of its own stiffness.

Preferably, for reasons of eco-sustainability, the tank is made of eco-friendly material (PET, Tetrapack, plastic and others on the market) of the â € œfood gradeâ € type, or with a composition such as not to release harmful agents or contaminants inside. of the water â € œWâ € contained in it.

Preferably, moreover, the dispenser 1, 21, 41 comprises a sterilizing device (not shown) operatively active near the dispenser 8, 28, 48 in order to eliminate the bacterial load during the dispensing of the beverage.

Such a device can for example comprise an irradiation member 14, 24, 54 of UV lights.

Preferably, the tank 6 comprises water â € œWâ € having optimal characteristics for making healthy and quality drinks.

In particular, this â € œWâ € water has, in the case of hot drink dispensers, in particular coffee:

- overall hardness between 5 and 14 ° dH, preferably between 7 and 12 ° dH, even more preferably about 9 ° dH, and / or

- carbon hardness between 2 and 5 ° kH, preferably between 3 and 4 ° kH, and / or

- pH between 6 and 8, preferably between 6.5 and 7.5.

Advantageously, water of this type is always fresh and pure, with no recognizable odors, for a richer coffee aroma of excellent quality. With reference to figure 1, we describe below a hot drink dispenser 1 of the â € œtableâ € type.

This distributor comprises a frame 2 provided with a base 2 to which the dispenser 8 is associated.

Below the dispenser 8 (in proximity to the base 2a), the frame 2 has an area 2b for receiving a cup, or dispensing area. Preferably, the presence of a sterilization device as described above is also provided.

The distributor 1 is also equipped with a water supply tank 6 â € œWâ € associated with the dispenser 8.

Preferably, the tank 6 is connected to the frame 2 at a support, provided with a junction portion 9a (to which the release portion 6a of the tank 6 is associated).

The tank 6 is of the type described above, that is disposable and deformable (yielding) along at least one of its own development direction â € œBâ €. In the illustrated embodiment (Figure 1), the tank 6 has a bellows structure. Alternatively, the bag / wrapper structure described above could be provided.

Preferably, between the dispenser 8 and the tank 6 there is provided the presence of means 11 suitable for deforming the tank along the aforesaid direction of development â € œBâ €.

In the illustrated embodiment, the means 11 are defined by a suction unit 11a, operatively interposed between the tank 6 and the dispenser, and configured in accordance with what has been previously described.

Therefore, the suction unit 11a is configured to generate a depression in correspondence with the delivery portion 6a in order to generate a flow of water from the tank 6 towards the dispenser 8, thus without the need to introduce air to the € ™ inside of said tank 6.

Therefore, the suction unit 11a is in fluid communication with the interior of the tank 6 and comprises means for generating the vacuum that can be operatively activated (following the selection of a drink by the user) to generate the aforementioned depression near the release portion 6a (neck of the tank) in order to suck water from the tank 6.

Preferably, the suction unit 11a comprises at least one pump 11b operatively interposed between a junction portion 9a of the support 9 and the dispenser 8 or, alternatively, mechanical devices.

It should be noted that the distributor 1 also comprises heating means 12 associated with the tank 6 for raising the temperature of the water â € œWâ €.

These heating means 12 are preferably associated with the support portion 9, in order to raise the temperature of the water â € œWâ € mainly in correspondence with the neck of the tank 6, ie where the water â € œWâ € is present. It is close to use.

Alternatively, or jointly, the distributor 1 (i.e. the heating means 12) comprises a heating chamber (not shown) interposed between the support 9 and the dispenser, upstream or downstream of the suction unit 11a, to locally perform the heating of water.

Furthermore, it is possible to provide for the presence of a coil (or other heating means) distributed along the connection duct between the tank 6 (ie the junction portion 9a of the support 9) and the dispenser 8. Advantageously, this solution it would allow small quantities of water to be heated (substantially equal to short sections of the duct) for the entire path taken between the tank 6 and the dispenser 8, allowing the correct temperature to be obtained in correspondence with the dispenser 8 itself.

With reference to figure 2, on the other hand, a water dispenser 21 is described, of the â € œbottle typeâ €.

In this embodiment, the tank 26 connected to the frame 22 of the distributor 21, preferably rigidly connected at a top of the same.

Unlike the hot drink dispenser, the dispenser 28 can be of the manual type, defined by a tap 28a that can be opened manually by the user.

Also in this case it is preferable that the means 31 suitable for deforming the tank are defined by a suction unit 31a as described previously).

However, the presser is also applicable to this type of distributor.

All the features previously described, both in the first part and in relation to the hot beverage dispenser (figure 1), where possible, are equally applicable to the water dispenser of figure 4.

In particular, the water dispenser 21 is equipped with the sterilization device (not shown) in correspondence with the dispenser 28.

Preferably, this sterilization device is defined by at least one UV ray irradiation member 24.

Furthermore, in the preferred embodiment, the water dispenser 21 is provided with a storage chamber (not shown) for a plurality of glasses, shaped so as not to be manually accessible by a user so as to keep the glasses sterilized.

In this regard, therefore, the storage chamber is equipped with dispensing means for at least one glass to position it in correspondence with the dispenser allowing the distribution of the drink.

With reference to Figure 3, we describe in the following a dispenser 41 for hot drinks, such as for example coffee, tea, caffelatte and the like.

In this embodiment, the frame 42 defines a receiving compartment 43. This frame 42, and therefore the housing compartment 43, develops mainly along its own main direction â € œAâ €, in substantially vertical use.

More precisely, the frame comprises a support structure 42a, defining a box-like body, and a door 42b hinged to the support structure 42a.

Said door 42b is preferably provided with a user interface 34, defined by a mouth 44a for withdrawing the drink and by one or more commands 44b (preferably keys) for selecting the drink itself. In the preferred embodiments, door 42b is associated with a system for receiving and detecting coins and / or banknotes.

Alternatively, this door can be associated with a system for reading electronic media (such as keys or the like).

It should be noted that it is possible that such systems can also be associated with the support structure 42a, without distinction, without any disadvantages relating to the present invention.

The dispenser 41 also comprises one or more containers 45 for infusion products C, T, S, M placed inside the compartment 43.

These containers are designed to contain granulated or powdered products, soluble in water to make the desired drink,

For example, the containers 45 may comprise:

- tea in soluble powder

- soluble milk powder

- sugar

- coffee.

This last one can already be ground, therefore in powder, or in grains. In the latter case, the dispenser is also provided with a grinder operatively placed downstream of the respective container 45 to grind the grains prior to infusion.

Furthermore, dosing devices are preferably provided (not shown) associated with each container 45 and configured to allow the dispensing of the correct quantity of infusion product C, T, S, M to be used to make the beverage selected by the user.

In this embodiment (figure 3), the water tank 46 â € œWâ € is placed inside the compartment 43, on the other hand (figures 1 and 2) the water tank 6, 16 â € œWâ € can be indiscriminately placed inside the machine body as well as outside.

In order to carry out the infusion, the distributor 41 comprises at least one mixing chamber 47 located inside the compartment 43 and in connection with said containers 45 and said tank 46 to carry out the infusion.

Therefore, the distributor comprises a plurality of connection pipes between said containers 45 and tanks 46 to guide the infusion products C, T, S, M and the water â € œWâ € inside the mixing chamber 47.

Consequently, the dispenser 48 is operationally located downstream of the mixing chamber 47.

In this regard, provision is made for the presence of means for supporting a glass, both in the form of a support surface and a gripping fork. Also in this case, the presence of a sterilization device as described above is also provided.

In order to avoid that, during use, the external air can contaminate the water inside the tank 6, the distributor 1 comprises a suction unit 51a, operationally interposed between the tank 46 and the chamber of mixing 47, and configured in accordance with what has been previously described.

Therefore, the suction unit 51a is configured to generate a depression in correspondence with the delivery portion 46a in order to generate a flow of water from the tank 46 towards the mixing chamber 47, without the need to introduce air to the Inside of said tank 46.

Therefore, the suction unit 51a is in fluid communication with the interior of the tank 46 and comprises means for generating the vacuum that can be operatively activated (following the selection of a drink by the user) to generate the aforementioned depression near the release portion 46a (neck of the tank) in order to suck water from the tank 46.

Preferably, the suction assembly 51a comprises at least one pump 51b operatively interposed between the junction portion 9a of the support 49 and the mixing chamber 47 or, alternatively, mechanical devices.

It should be noted that the distributor 41 also comprises heating means 52 associated with the tank 46 for raising the temperature of the water â € œWâ €.

These heating means 52 are preferably associated with the support portion 49, in order to raise the temperature of the water â € œWâ € mainly in correspondence with the neck of the tank 46, that is where the water â € œWâ € is present. It is close to use.

Alternatively, or jointly, the distributor 41 (i.e. the heating means 52) comprises a heating chamber (not shown) interposed between the support 49 and the mixing chamber 47, upstream or downstream of the suction unit 51a, to locally perform the water heating.

Furthermore, it is possible to provide for the presence of a coil (or other heating means) distributed along the connection duct between the tank 46 (ie the junction portion 49a of the support 49) and the mixing chamber 47. Advantageously, this solution it would allow small quantities of water to be heated (substantially equal to short sections of the duct) for the entire path taken between the tank 46 and the chamber 47, allowing the correct temperature to be obtained in correspondence with the mixing chamber 47 itself. As previously described, the tank 46 has a deformable bellows structure along the main direction â € œBâ € in such a way as to guide the volume reduction in proportion to the quantity of water sucked in by the suction unit 51a.

The present invention likewise solves all the technical problems represented above.

In fact, the use of an interchangeable disposable tank, in which the water has predetermined characteristics that are optimal for its consumption, in addition to maintaining intact purity and taste originally defined, eliminates health risks by excluding the degeneration of the bacteriological level .

Also in this case the presence of a deformable tank, and its coupling with the suction group (eg pump) ensures that the water inside the tank itself never comes into contact with external agents, thus remaining untouched.

Advantageously, the absence of additives, in particular chlorine, ensures the best efficiency of the dispensers, protects the delicate parts inside the dispenser, extending its useful life, while optimizing the taste of the water.

Claims (19)

CLAIMS 1. Beverage dispenser, comprising: - a frame (2, 22, 42); - at least one water supply tank (6, 26, 46) (W) associated with said frame; - at least one dispenser (8, 28, 48) associated with the tank (6, 26, 46) to deliver a drink containing said water (W); characterized in that the tank (6, 26, 46) is of the disposable type and has a structure designed to deform along at least its own development direction (B) to reduce its volume; said distributor comprising means (11, 31, 51) adapted to deform said tank (6, 26, 46) along said at least one direction of development (B) to reduce its volume in proportion to the quantity of water (W) residual inside of the tank (6, 26, 46) itself. 2. Distributor according to claim 1, characterized in that said tank (6, 26, 46) develops along its own direction of development (B) between its own first end (6b, 26b, 46b) and its own second end ( 6a, 26a, 46a) provided with a release portion; said means (11, 31, 51) adapted to deform said tank (6, 26, 46) being configured to bring said first end (6b, 26b, 46b) closer to said second end (6a, 26a, 46a) during said deformation of the tank (6, 26, 46). 3. Distributor according to claim 2, characterized in that said means (11, 31, 51) adapted to deform said tank (6, 26, 46) contribute to deform it from an undeformed configuration, of maximum bulk, in which said first end (6b, 26b, 46b) is distal from said second extremity (6a, 26a, 46a), to a deformed configuration, of minimal bulk, in which said first extremity (6b, 26b, 46b) is proximal to said second extremity (6a, 26a, 46a). 4. Distributor according to claims 2 or 3, characterized in that said tank (6, 26, 46) has a deformable bellows structure along a direction joining said ends (6a, 26a, 46a, 6b, 26b, 46b), corresponding to said development direction (B), in order to allow the deformation during the action of the means (11, 31, 51) adapted to deform the tank (6, 26, 46). 5. Distributor according to claim 4, characterized in that said bellows structure of the tank (6, 26, 46) is defined by at least one side wall (6c, 26c, 46c) of the tank developing with a succession of apexes and grooves , where each apex defines a cusp to facilitate its deformation. 6. Distributor according to claims 2 or 3, characterized in that said tank (6, 26, 46) comprises a membrane (60) without its own stiffness located inside a rigid casing (61), provided with a release portion; said means (11, 31, 51) adapted to deform said tank (6) being operatively active in suction on said membrane to deform it, reducing its volume in proportion to the quantity of water (W) residual inside the membrane (60) itself. 7. Distributor according to any one of the preceding claims, characterized in that said means (11, 31, 51) suitable for deforming the tank (6, 26, 46) comprise a suction unit (11a, 31a, 51a) operatively interposed between said tank (6, 26, 46) and said dispenser (8, 28, 48) configured to generate a vacuum at a release portion (6a, 26a, 46a) of the tank (6, 26, 46) in order to generate a flow of water from the tank (6, 26, 46) towards the dispenser (8, 28, 48) by deforming said tank (6, 26, 46) along said at least one direction of development (B) to reduce its volume in proportion to the quantity of water (W) sucked in. 8. Distributor according to claim 7, characterized in that said suction unit (11a, 31a, 51a) comprises at least one volumetric pump (11b, 31b, 51b). 9. Distributor according to any one of claims 1 to 6, characterized in that said means (11, 31, 51) suitable for deforming the tank (6, 26, 46) comprise a mechanical device for compressing the bellows structure of the tank , placed above or below the tank itself. 10. Dispenser according to any one of the preceding claims, characterized in that it comprises an operatively active sterilizing device near said dispenser (8, 28, 48) in order to eliminate the bacterial load during the dispensing of the beverage. 11. Dispenser according to any one of the preceding claims, characterized in that it comprises a storage chamber for a plurality of cups equipped with dispensing means for at least one cup to position it in correspondence with said dispenser in order to keep the cups isolated from the external environment. 12. Distributor according to any one of the preceding claims, characterized in that it comprises: - one or more containers (5, 35) of infusion products associated with the frame (); - heating means (12, 52) operatively interposed between the dispenser (8, 48) and said tank (6, 46) to raise the temperature of the water upstream of the mixing. 13. Distributor according to any one of the preceding claims, characterized in that said tank (6, 26, 46) can be connected to said frame (2, 22, 42) by means of quick coupling (13, 33, 53) provided with at least one sealing member able to seal the connection thereof. 14. Disposable water supply tank (6, 26, 46) for beverage dispensers, developing along its own development direction (B) between a first end (6b, 26b, 46b) and a second end (6a, 26a, 46a) provided with a water release portion (W) arranged to be connected to a corresponding junction portion (9a, 29a, 49a) of a beverage dispenser (1, 21, 41); characterized by the fact that it has a structure designed to deform along at least its own direction of development (B) to reduce its volume and compensate for the depression that is generated inside said tank (6, 26, 46) during the exercise 15. Disposable tank (6, 26, 46) according to claim 14, characterized in that it comprises a membrane (60) without its own stiffness located inside a rigid casing (61), provided with a release portion . Tank (6, 26, 46) according to claims 14 or 15, characterized in that it is designed to be deformed by approaching said first end (6b, 26b, 46b) to said second end (6a, 26a, 46a). Tank (6, 26, 46) according to claim 16, characterized in that it is deformable from an undeformed configuration, of maximum bulk, in which said first end (6b, 26b, 46b) is distal from said second end ( 6a, 26a, 46a), to a deformed configuration, of minimal bulk, in which said first end (6b, 26b, 46b) is proximal to said second end (6a, 26a, 46a). 18. Tank (6, 26, 46) according to claims 16 or 17, characterized in that it has a deformable bellows structure along a direction joining said ends (6a, 26a, 46a, 6b, 26b, 46b), corresponding to said development direction (B), in order to facilitate its deformation. 19. Tank (6, 26, 46) according to claim 18, characterized in that said bellows structure is defined by at least one side wall (6c, 26c, 46c) of said tank (6, 26, 46) developing with a succession of apexes and grooves, in which each apex defines a cusp to facilitate its deformation.