FR2785601A1 - Automatic gravity feed fresh drinks vending machine, with integral cooler - Google Patents

Abstract

The dispenser comprises a container that is mounted such that the outlet is inverted and the flow of liquid is gravity fed. The drinks are dispensed from a container having a breakable seal. The device includes supports (64,66) which hold the container (2) upside down. and centered on a container seal piercing part (8). This part (8) has a pipe (10) which communicates between the container contents and a coil (22) which feeds the drink to be dispensed through a secondary heat exchanger (20), whose heat transfer agent has previously cooled in a primary heat exchanger (26). The cooling agent is fed to the secondary heat exchanger (20) by a pump (36) whose operation is controlled by a thermostat (38) which monitors the temperature of the agent in the heat exchanger (20). The primary heat exchanger (22) has a heat source (42) for maintaining a continuous passage of the heat transfer agent through a closed circuit connecting the two heat exchangers (20,22), including the pump (36) when it is inoperative.

Description

AUTONOMOUS DISPENSER BY GRAVITY OF FRESH BEVERAGE IN
CUP FROM A CANDY BOTTLE WITH PERCUTABLE ORIFICE.

 The invention is in the field of devices for dispensing beverages by gravity from a storage container, and it relates to an autonomous dispenser of fresh drink in a cup, in particular from a bottle with a removable storage neck.

 Beverage dispensers are known which are intended to be installed in a collective space, place of work or visit in particular. Among these dispensers are more particularly known those which include a reserve of drink packaged in a neck bottle, which is supported under load by the dispenser in the upside-down position, for a gravity distribution of the drink that it contains. The bottle is removable for replacement when it is empty, and the dispenser includes means for percussion of a cover for closing the installed bottle. The cover being perforated, the drink flows by gravity towards a pipe for bringing the drink to a dispensing tap, after it has passed through cooling means to cool it. Currently, the cooling means comprise an exchanger formed by a coil conveying a liquid refrigerated by a cold source. The coil is wound around a capacity interposed between the percussion means and the beverage dispensing tap, inside which capacity transits the beverage and where the exchange of calories takes place between the beverage and the liquid. cooling. It will be noted that often such dispensers further include a second beverage supply conduit which communicates with the percussion means and a tap, for additional distribution of the beverage at room temperature, that is to say without intermediate passage of the drink in the cooling means.

 To know a technological environment close to the invention, reference may be made to patent applications FR2769610 (MISTRAL DISTRIBUTION AS) or EP0581491 (EBAC ltd).

 A first problem to be solved resides in the fact that the cooling means must offer a capacity for refreshing the drink capable of responding to consumption peaks, which are moreover all the more important as the ambient temperature, and therefore that of the drink in reserve, are high.

 However and conversely, it is not desirable that the power of these cooling means induce disproportionate operating costs of the dispenser, taking into account the maintenance in operation of these means during periods when the consumption of fresh drink is sporadic and irregular.

 Another problem is that the distribution of beverages by cylinder involves frequent maintenance with regard to hygiene, with the ensuing consequences on the maintenance costs of these devices, due to the possible presence of bacterial strains. likely to develop in the beverage distribution circuit and the stagnation of the beverage flows in retention areas of the dispenser. Finally, in the case of unexpected pollution of the device by a soiled cylinder, the spontaneous evacuation of the soil is not guaranteed by the simple flow by gravity of the drink through its distribution circuit, all the more so as said caloric exchange capacity, shaped in a container or in a bag, is conducive to the retention of drink within certain zones of its useful volume containing the drink being refreshed.

 Also known in the field of beverage distribution, a prior art distant from the previous consisting of a device for dispensing a plurality of beverages from individual reserves kept under pressure, for a beverage outlet counter for example. To avoid providing each of these reserves with a source of clean cold generation, it has been proposed by GB2204670 (MK REFRIGERATION) a distributor of the kind comprising a cold generator source common to all the beverage reserves, to cool in a first cooling stage a coolant, which is then brought to second cooling stages mounted in parallel on a closed circuit comprising a pump for the circulation of the coolant. Each of the drinks, kept under pressure in the corresponding reserve, circulates inside a coil through a cooling chamber of a second respective cooling stage. Thermostatic means, assigned to each of said second cooling stages for measuring the temperature of the drink, control if necessary the operation of a valve for admitting the heat transfer liquid into the cooling chamber of the corresponding drink.

 The object of the present invention is to provide a gravity dispenser for fresh drink from a removable storage bottle, which bases its competitiveness on a reduction in maintenance costs, with regard to hygiene more particularly, both by reduction in the frequency of maintenance interventions only by a reduction in the number of operations to be carried out during these, and on a satisfactory cooling capacity of the drink during peak periods, with latent operating costs nevertheless low.

 The present invention will be described in relation to the figure of the appended plate which schematically illustrates a beverage dispenser according to a preferred embodiment of the invention.

 According to the invention and on the basis of the abovementioned findings of the problems to be solved, findings which in themselves fall within the inventive approach of the designers with the corresponding arbitrary choices that they offer, a beverage dispenser has the following characteristics, taken alone or in combination.

1.-the distributor being a distributor of fresh drink by gravity From a removable storage container 2, this is mainly composed:
a) a chassis 4 with vertical extension,
b) support means under load in the inverted position of a removable container 2, the latter being conformd in a bottle neck,
c) means for percussion of a cover 6 for closing the cylinder 2, comprising a striker 8 with vertical extension comprising at least one channel 10 for discharging the beverage out of the cylinder 2, the said striker 8 comprising at in addition to an air intake duct 12 inside the cylinder 2 in compensation for the volume of beverage withdrawn, air intake duct 12 in communication with the outside via a check valve 14 -return of the drink and of an air filter 16,
d) a device for cooling the beverage, comprising a cold source 18 for refrigerating a caloric transfer agent maintained in equilibrium between its liquid and solid phase, a chamber 20 for refreshing the beverage, in which the caloric exchange between said agent and the beverage, and a conduit 22 for distributing fresh beverage in communication with said channel 10 for evacuating the beverage, conduit 22 provided with at least one tap 24 for withdrawing the refreshed beverage ,
e) means for supplying electrical energy (not shown in the figure).

2.-The cooling device is made up of:
a) a primary exchanger 26, in which the cooling of the caloric transfer agent takes place, said primary exchanger 26 comprising a primary exchange chamber 28 containing said caloric transfer agent, intended to be in equilibrium with its solid phase, and the said source 18 of cold,
b) a secondary exchanger 30, comprising a secondary exchange chamber 20 containing the said transfer agent and at least in part the said cool drink distribution duct 10-22, the latter being shaped as a serpentine 22 with extension vertical, of the order of two to five times the diameter of the coil in particular,
c) of a closed hydraulic circuit, comprising the primary chamber 26 and the secondary chamber 30, connected to each other by said lines of supply 32 and return 34 respectively, for conveying between the primary exchangers 26 and secondary 30 the said transfer agent, by means of a pump 36 placed on the circuit, on the return line 34 for example,
d) thermostatic means 38 located in the secondary chamber 20 for measuring the temperature of the transfer agent present, said thermostatic means 38 constituting control means for activating or stopping the pump 36, in order to cause circulation, or no, of the agent in the said closed circuit, and
e) means for ensuring the coexistence of the liquid and solid phases of the caloric transfer agent, comprising, preferably in combination, thermostatic means 40 placed in the primary chamber for activating or stopping the production of cold from said source of cold 18, and a heat source 42, advantageously static, or ambient, if not produced from an electrical auxiliary power source in particular, said heat source 42 constituting means for ensuring continuity in the circuit of a liquid transfer agent.

 These provisions are such that the pump is not permanently activated but only to meet the specific needs of users, its implementation being dependent on the temperature of the transfer agent inside the secondary chamber, allowing '' obtain fresh drinks at any time, including during peak periods, without, however, causing untimely operating costs during periods when the fresh drink is not drawn off.

 In addition, the preferred configuration of the cold serpentine drink distribution circuit 22 with a significant axial extension of at least twice its diameter, gives the drink that it conveys a dynamic capable of evacuating contamination unexpectedly or accidentally present. in the beverage distribution circuit, which allows the sanitary controls of the dispenser and the cleaning operations of the latter to be spaced over time, with a reduction in the related maintenance costs.

 Finally, it will be noted that the arrangement of said closed circuit 28,32,20,36,34 and the primary 26 and secondary 30 exchangers, with their operating means, and in particular with or without activation of the pump 36 according to the temperature of the transfer agent inside the secondary chamber 20, and with maintenance of the continuity in the circuit of a liquid passage of the caloric transfer agent by static means 42 of ambient heat source, arrangement of the closed circuit associated with the serpentine conformation 22 of the cold beverage distribution duct disposed in the secondary exchange chamber 20, with a significant axial extension of at least twice its diameter, give the secondary exchanger 30 a small operational inertia between the transition from a punctual or episodic operation and the transition between a peak operation, and participate in a good result obtained from refreshment of the drink during periods of po inte while providing satisfactory operating competitiveness.

 It will be understood that according to one aspect of the invention aimed at reducing the operating costs of the device, it is proposed to place the pump 36 under the dependence of control means 38 causing it to stop as soon as the desired temperature of the heat transfer is achieved inside the secondary chamber 20, and to associate with these control means 38 first of all thermostatic means 40 placed inside the primary chamber 28 to stop the production of cold as soon as 'a low temperature threshold is reached, between-1 C and -5 C in particular, and secondly said heat source 42 for maintaining a continuous liquid passage in the circuit of the caloric transfer agent, to remedy to the inertia linked to the passage of the agent between its liquid and solid phases, which risks interrupting said continuity notwithstanding the stopping of the production of cold controlled by the thermostatic means 40 of the primary chamber 28 .

 It will thus be understood that thanks to the presence of the heat source 42 and to the continuity of passage of the transfer liquid inside the closed circuit, a lowering of the temperature inside the primary exchanger is authorized, including included until a solid phase transformation of the transfer agent, in order to respond satisfactorily to a peak period of withdrawal of cold drink, without having to maintain a permanent circulation of the transfer agent at the inside the closed circuit. Furthermore, it results from the ability to lower the temperature of the transfer agent, an obstacle to the development of bacterial strains inside the coil transporting the drink inside the secondary exchanger.

 It will be noted that according to a usual embodiment in the field of exchangers, said cold source is for example constituted by a coil 44 forming the evaporator of a refrigerating source.

 According to an exemplary embodiment of said static heat source, it is constituted by an extension in the primary chamber 28 of at least one of the supply and return pipes 32 of the caloric transfer agent , which connect the primary 28 and secondary 20 chambers to each other, said conduits 32 and 34 drawing their heat from the ambient air. Incidentally in addition, but preferably as a substitute for the said extensions of the supply and return lines 32, the said static heat source is constituted by a circuit 42 derived from the heat transfer agent, for maintaining outside the chamber. primary 28 of a quantity of heat transfer agent inside said closed circuit, quantity therefore not subjected to cooling in the primary exchanger 26 and thereby remaining in the liquid state.

 According to an advantageous embodiment, said derivative circuit 42 constitutes with the primary chamber 28 a one-piece assembly, molded "by blowing" from a plastic material around rigid inlet 46 and outlet 48 conduits of the coil 44, and around a tube 50 housing the corresponding thermostatic means 40, the coil 44 being disposed inside the primary chamber 28 which contains the heat transfer agent. Note the preferred elliptical conformation of the section of the primary chamber 28, aiming to move said derivative circuit 42 away from the middle zone of the primary chamber 28 where the coil 44 is located. It will be noted in this connection that the secondary chamber is manufactured in a similar manner, namely by maintaining the coil 22 disposed between the two shells of a mold comprising indentations for the passage of said supply and return conduits 32 and 34 of the heat transfer agent, as well as a tube 52 for receiving the thermostatic means 38, inside which mold is "blown" a plastic cylinder. Note also the presence inside the secondary chamber of a body 54, inserted between the turns of the coil before "blowing", which occupies the interior space of the coil 22 for the flow of the drink in order to limit the capacity of the secondary chamber 20 reserved for the caloric transfer agent.

 According to another aspect of the invention aimed at simplifying maintenance operations, and in particular the replacement and / or an additional contribution of the heat transfer agent, and aiming at reducing the operating costs linked to the pump 36, the said closed circuit is made up of primary 28 and secondary 20 chambers, as well as said supply and return lines 34, the pump being placed on any one of these, and the closed circuit 28,32,20,34,36 is maintained at atmospheric pressure, the pump 36 constituting only a fluid circulator offering the advantage of being silent, as well as reduced wear and energy consumption. For this and advantageously, at least any one of the primary 28 and / or secondary 20 chambers is provided with a filling plug 56, provided with a semi-permeable membrane for communication with the ambient air. It will be noted in the figure that the interior volume of the secondary chamber 20 is not completely occupied by the said agent, but comprises a part occupied by the ambient air to absorb the variations in volume of the heat transfer agent. Note also that the appropriate caloric transfer agent is water.

 3.-The cylinder 2 is supported under load by the chassis 4 in the inverted position via its neck 58 which rests on a seat 64,66 of the striker 8, on which striker 8 the neck 58 is threaded for the centering of the cylinder 2 on the chassis 4 via its neck. The body 60 of the cylinder is in contact with the chassis 4 by means of flexible members 62, which constitute means for absorbing the tolerances and the geometric imperfections of the body 60 of the cylinder 2.

 Such an arrangement of the support means 64,66 and centering 8,62 of the cylinder 2 on the dispenser by means of its neck 58 tends to reduce the risk of leaks, by a spontaneous prohibition against damaging lopsidedness. of the cylinder 2 on the striker 8 and by a repercussion of the weight of the cylinder 2 on the chassis 4 in a concentrated axial zone thereof, limiting the repercussions of the weight of cylinder 2 on peripheral zones of the chassis 4 which would have for consequence of damaging its stability. Furthermore, it results from the rest of the cylinder on the chassis by means of its neck, the possibility of using a striker of short length which is completely covered by the cylinder, whatever the dimensions of the latter, and finally that the striker is in all cases preserved from the external environment when a cylinder is placed on the dispenser, which tends to reduce the risks of pollution.

 It will be noted that it also results from these provisions, firstly a reduction in the risk of pollution caused by a stagnation of drink in the dispenser, thanks to said reduction of the risk of leakage, secondly an appropriate emptying of the bottle thanks to its centering through its neck, and thirdly the possibility of using with the same distributor of cylinders from any supplier, thanks to the elastic support of the body of the cylinder by the chassis making it possible to accept , to some extent, the differences in dimensions of the cylinder from one supplier to another.

 Said flexible members 62 are for example constituted by at least one cushion of elastic material which forms an elastic seat for the body 60 of the cylinder 2, preferably in conical bearing.

 According to a preferred embodiment, the neck 58 of the cylinder 2 axially bears against a monobloc plate 64 of the striker 8, forming the said seat, by means of studs 66 with which the latter is provided, so that the cylinder 2 is maintained in the inverted position by means of at least three points, preferably with a spherical bearing, for supporting its neck 58 on the plate 64 of the striker 8.

 Furthermore, the neck 58 is preferably housed in floating contact inside a sleeve 68 for protecting and guiding the neck 58 when the carboy 2 is placed on the chassis 4. The funnel-shaped configuration will be noted. of the inner surface of the sleeve 68, to facilitate the introduction of the neck 58. Finally, the said cushion 62 at least comprises four equally distributed pads at the periphery of the body 60 of the cylinder 2, preferably supported by vertical feet 70 taking support axial on a central column of the chassis 4 and thereby favoring the said axial repercussion of the load of the cylinder 2 on the chassis 4.

 4.-The cylinder 2 preferably being centered by means of its neck 58, the dispenser preferably comprises shock-absorbing means of the impact of the impact of the cap 6 of the cylinder 2. These means, interposed between the cylinder 2 and the chassis 4, comprise a flexible pad 72 of elastomer interposed between the plate 64 and the chassis 4.

 5.-The dispenser comprises means 80-82-84-76-74 for draining an unexpected flow of the beverage which may occur in the vicinity of the striker 8 during the withdrawal of the cylinder for its replacement, towards a basin 74 of collection, preferably arranged in the lower zone of the dispenser, that is to say under the cooling means 26.30, to avoid any stagnation of the drink likely to cause pollution. The drainage and the bringing of said drink flows to the basin 74 is preferably carried out naturally by gravity, by means of a drainage conduit 76, which connects said drainage means to the basin and which extends over the height of the chassis 4.

 It will also be noted that the dispenser preferably comprises a drainage channel 94 for beverage overflows in the tap area at least 92 for withdrawing the beverage, leading to said drainage conduit 76.

 The collection basin 74 is advantageously disposed above the cold source 18, for the purpose of the evaporation of said beverage flows under the effect of the heat produced by the cold generating means. Preferably, however, the collection basin 74 incorporates a heating resistor 78, known as a dehydrator, of low power but of permanent operation to ensure the evaporation of the flows of collected drinks, even in the event of prolonged stopping of the cold source 18, optionally controlled shutdown by the thermostatic means 40 of the primary exchanger 26.

 It will be noted that the said drainage means 80-82-84-76-74 and the coil 22, the conformation of which even avoids the areas of retention of the drink, and the above indicative proportions of which result in a flow of the beverage with a dynamic conducive to spontaneous cleaning of the internal surfaces of the coil 22, constitute in combination overall sanitation means of the dispenser aiming to space maintenance operations. It will be understood that this combination of means is preferably supplemented by all of the abovementioned provisions aimed at limiting the stagnation of lost flows of drink, or of leakage, and the presence of inopportune retention zones thereof, at least in the vicinity of the distribution channel.

 According to the illustrated embodiment of the drainage means, these comprise a channel 80-82-84 communicating on the one hand with the internal volume of the sleeve 68 for protecting the neck 58, at the base of the seat 64-66 on which the neck 58 rests and more particularly at the base of the plate 64 overhung by the neck 58 which rests on the support pads 66, and communicating on the other hand with said drainage conduit 76.

 Incidentally and in addition to the previous arrangement, the said drainage channel 80-8284 is also communicating with a space 82 confined between the outer surface of the sleeve 68 and the inner surface of a housing 86 of the chassis 4 which receives it, the so-called space 82 forming a complementary channel for capturing beverage flows to avoid its stagnation in a space separating the sleeve 68 from the chassis 4.

 Note the advantageous double function of the sleeve 68, which at the same time constitutes a member for protecting and guiding the neck 58 during the installation of the cylinder 2, and which participates in the means 80-82-84- 76-74 for draining beverage flows.

 6.- The zones of the conduits 10.88 conveying the drink which are arranged in an atmosphere at ambient temperature, are equipped with decontamination means constituted by means 90 for heating the conduits to a temperature of the order of at least 80, so that the cleaning of the conduits 10,88 at least in the abovementioned zones is carried out quickly and simply from programmed control means of the autonomous implementation at regular intervals of the heating means 90, whereby the maintenance operations are reduced, with the ensuing economic consequences. These heating means are for example constituted by at least one resistor 90 disposed in the vicinity, or even wound around, of said duct zones.

 It will be noted that the combination between the sanitation means 80-82-84-76-74 and 22, and the sterilization means 90 contribute overall to reduce the maintenance costs of the apparatus of the invention.

 7.-The distributor further comprises at least any one of the following provisions: a) a cup distributor fixed or even incorporated into the chassis (not shown in the figure), b) a second distribution conduit 88, in communication, upstream of the cooling means, with said beverage evacuation channel 10, the second distribution conduit being provided with a tap 92 for withdrawing the beverage at room temperature, c) an electronic clock (not shown in the figure), the implementation of which is placed under the dependence of a sensor for the presence of the cylinder 2, to indicate, by means of a visual signal for example, the exceeding of a predetermined installation time d 'same bottle 2 on the dispenser.

 Thus, to reduce the inventive step of the present invention to a general definition as concise as possible, a cool drink dispenser by gravity from a neck bottle with a percolable lid, includes means for supporting the bottle in position overturned, preferably supported by its neck which is advantageously centered on a striker of the dispenser, said striker comprising a draining channel for the carboy which communicates with a coil to conduct the drink through a secondary exchanger, the l caloric transfer agent is cooled beforehand in a primary exchanger and is brought to the secondary exchanger by means of a pump, the implementation of which is controlled by thermostatic means for measuring the temperature of the transfer agent in the secondary exchanger, the primary exchanger comprising a heat source to maintain a continuous passage of the transfer agent inside the closed circuit connecting the primary and secondary exchangers with each other, including when the pump is stopped.

 However, it will be noted that in general, said cooling means, in particular those 18,26,30,32,34,36,38,40,42 as defined 2 of this description, constitute cooling means for equip a beverage dispenser, both by gravity by means of a storage reserve and from the water distribution network, or even from a pressurized beverage distribution, by means of a pump where a reserve of drink contained under pressure was. It will thus be understood that, according to these latter cases, the means of supplying beverage described in 1 of this description, and in particular the means of percussion of a bottled bottle with the relative distribution channel, are replaced by means of corresponding connection.

Claims (1)

CLAIMS 1.-Distributor of cold drink by gravity from a neck bottle with a percolable cover, characterized: in that it includes support means (64, 66) of the bottle (2) in the inverted position on a striker (8), which comprises a channel (10) for emptying the carboy (2) communicating with a coil (22) to conduct the drink through a secondary exchanger (20), the caloric transfer agent of which is previously cooled in a primary exchanger (26) and is brought to the secondary exchanger (20) by means of a pump (36), the operation of which is controlled by thermostatic means (38) for measuring the temperature of the transfer agent in the secondary exchanger (20), the primary exchanger (22) comprising a heat source (42) to maintain a continuous passage of the transfer agent inside the closed circuit connecting the exchangers primary (26) and secondary (20) therebetween, including lo rsque the pump (36) is stopped 2.-Beverage dispenser according to claim 1, characterized: in that it comprises: a) a frame (4) with vertical extension, b) support means under load in the inverted position of a removable container (2), the latter being shaped into a bottle neck,  c) means of percussion of a sealing cap (6)  of the cylinder (2), comprising a striker (8) to  vertical extension comprising at least one channel (10)  for evacuating the drink from the bottle (2), the  said striker (8) further comprising a conduit (12)  air intake inside the cylinder (2) in  compensation for the volume of beverage withdrawn, conduit (12)  air intake in communication with the outside by  through a check valve (14) of the  beverage and an air filter (16), d) a beverage cooling device, comprising a cold source (18) for refrigerating a caloric transfer agent maintained in balance between its liquid and solid phase, a chamber (20) for refreshing the beverage, in which the caloric exchange takes place between said agent and the beverage, and a conduit (22) for distributing fresh beverage in communication with said evacuation channel (10) of the beverage, conduit (22) provided with at least one tap (24) for withdrawing the refreshed beverage, e) means for supplying electrical energy, and  the cooling device being composed: a) of a primary exchanger (26), in which the cooling of the caloric transfer agent takes place, said primary exchanger (26) comprising a primary exchange chamber (28) containing said caloric transfer agent and said source (18) of cold, b) a secondary exchanger (30), comprising a secondary exchange chamber (20) containing said transfer agent and at least in part the said cool drink distribution duct (10-22), this being shaped as a serpentine (22) with vertical extension, c) of a closed hydraulic circuit, comprising the primary chamber (26) and the secondary chamber (30) , connected to each other by so-called supply (32) and return (34) pipes, respectively, for conveying between the primary (26) and secondary (30) exchangers said transfer agent, by the intermediate of a pump (36) placed on the circuit, d) thermostatic means (38) located in the a secondary chamber (20) for measuring the temperature of the transfer agent present, the said thermostatic means (38) constituting control means for activating or stopping the pump (36), in order to cause circulation, or not, of the agent in said closed circuit, and  e) means to ensure the coexistence of the phases  liquid and solid of the caloric transfer agent,  comprising thermostatic means (40) placed in the  primary chamber to activate or stop the production of  cold of said cold source (18), and a source of  heat (42) which constitutes means for ensuring the  continuity in the circuit of a liquid passage from  the caloric transfer agent. 3. A drink dispenser according to claim 2,  characterized:  in that said heat source  static is constituted by a circuit derived (42) from  the heat transfer agent, to keep out of the room  primary (28) of an amount of heat transfer agent to  inside the said closed circuit. 4. Beverage dispenser according to claim 3,  characterized:  in that said derivative circuit (42)  together with the primary chamber (28)  monobloc, blow molded from plastic  around rigid intake ducts (46) and  evacuation (48) of a coil (44) constituting  the cold source evaporator (18), and around a  tube (50) housing the thermostatic means (40)  corresponding, the coil (44) being arranged at  the interior of the primary chamber (28) which contains  the heat transfer agent. 5. Beverage dispenser according to claim 2,  characterized:  in that the said closed circuit is  maintained at atmospheric pressure and is composed of  primary (28) and secondary (20) and so-called chambers  supply (32) and return (34) lines, pump (36)  being placed on any of these. 6. Beverage dispenser according to claim 2,  characterized:  in that the cylinder (2) is  supported under load by the chassis (4) in position  overturned via its neck (58) which  rests on a seat (64,66) of the striker (8), on  which striker (8) the neck (58) is threaded for the  centering of the cylinder (2) on the chassis (4) by  through its neck, the body (60) of the  cylinder being in contact with the chassis (4) by  through flexible organs (62). 7. A drink dispenser according to claim 6,  characterized:  in that it includes means  shock absorbers of the percussion of the cover (6)  of the cylinder (2), including the said flexible members  and a flexible pad (72) interposed between the seat  (64) of the neck (68) and the chassis (4). 8. A drink dispenser according to claim 6,  characterized:  in that it includes means of  drainage of an unexpected flow of the drink to the  neighborhood of the striker (8), towards a basin (74) of  collection, drainage and supply of said flows from  drink to the pool (74) occurring naturally  by gravity, via a conduit (76) of  drainage which connects the said means of drainage to the basin. 9. A dispenser according to claim 8, characterized:  in that the collection basin (74)  incorporates a low heating resistance (78)  power but continuous operation to ensure  evaporation of the flows of collected beverages, even  in case of prolonged shutdown of the cold source (18)  controlled by thermostatic means (40) of  the primary exchanger (26). 10. Beverage dispenser according to claims 6 and 8,  characterized:  in that the means of drainage  include a channel (80-82-84) communicating on the one hand  with the interior volume of a protective sleeve (68)  neck (58), at the base of the seat (64-66) on  which rests the neck (58), and communicating other  leaves with the said drainage conduit 76. 11. Beverage dispenser according to claims 6 and 8,  characterized:  in that the areas of the conduits  conveying the drink which are arranged in a  atmosphere at room temperature, are equipped with  decontamination means constituted by means of  heating of conduits consisting of at least one  resistance (90) wound around said zones of  drove.