EP0339110A1 - Distributeur automatique de boissons - Google Patents

Distributeur automatique de boissons Download PDF

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Publication number
EP0339110A1
EP0339110A1 EP88106770A EP88106770A EP0339110A1 EP 0339110 A1 EP0339110 A1 EP 0339110A1 EP 88106770 A EP88106770 A EP 88106770A EP 88106770 A EP88106770 A EP 88106770A EP 0339110 A1 EP0339110 A1 EP 0339110A1
Authority
EP
European Patent Office
Prior art keywords
liquids
hoses
beverage dispenser
pump
hose
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88106770A
Other languages
German (de)
English (en)
Other versions
EP0339110B1 (fr
Inventor
Markus Eugster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Frismag AG
Original Assignee
Frismag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Frismag AG filed Critical Frismag AG
Priority to DE88106770T priority Critical patent/DE3885447D1/de
Priority to EP88106770A priority patent/EP0339110B1/fr
Priority to ES198888106770T priority patent/ES2013582T3/es
Priority to AT88106770T priority patent/ATE96926T1/de
Publication of EP0339110A1 publication Critical patent/EP0339110A1/fr
Application granted granted Critical
Publication of EP0339110B1 publication Critical patent/EP0339110B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/10—Pump mechanism
    • B67D1/108—Pump mechanism of the peristaltic type
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F13/00—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs
    • G07F13/06—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs with selective dispensing of different fluids or materials or mixtures thereof
    • G07F13/065—Coin-freed apparatus for controlling dispensing or fluids, semiliquids or granular material from reservoirs with selective dispensing of different fluids or materials or mixtures thereof for drink preparation

Definitions

  • the invention relates to an automatic beverage dispenser, in particular an automatic cocoa dispenser, in which two liquids are mixed together in a predetermined quantity ratio and which dispenses a predetermined amount of the beverage mixed from these liquids.
  • Some drinks such as cocoa in particular, only have a special pleasant taste when they are drunk freshly prepared.
  • Vending machine for dispensing drinks which are intended to deliver such beverages freshly prepared and which are intended, for example, for use in canteens, self-service restaurants or the like, must therefore be able to dispense the basic liquid, for example hot water, and the beverage substance to be added to it, for example an extract or cocoa paste to mix with each other in a predetermined ratio and to deliver in precisely measured total quantity.
  • Simple flow control valves are not very suitable for the quantity adjustment of the beverage components, since the flow rate of the beverage components depends very much on the viscosity of the same.
  • the use of piston pumps, with which an exact quantitative dosage per se would be possible, is not recommended, since in them the beverage components can come into contact with lubricants for the moving parts and their taste is thereby impaired apart from restrictions imposed by food regulations.
  • Piston pumps of this type also require a considerable amount of maintenance and tend to fail, particularly if there are longer downtimes between individual beverage removal processes, in which beverage constituents can settle on pump parts and possibly solidify.
  • a device for the metered delivery of milk which contains a roller hose pump, with which milk is sucked out of a storage container and delivered to a receptacle, which stands on a scale that is reached when it is reached of a weight corresponding to a predetermined amount of milk stops the pump operation.
  • a peristaltic pump avoids moving parts that come into contact with the milk and enables the milk in the device to be kept germ-free.
  • This device is, however, neither suitable nor intended for the mixing of two liquids with one another in a predetermined ratio and is also relatively expensive since it requires a balance with which the weight of the container intended for the intake of the milk must first be determined, so independently of the exact one Weight of this receptacle always equal amounts of milk are released when the device is actuated.
  • the invention has for its object to provide a beverage dispenser of the type mentioned, with which two liquids of very different viscosities can be mixed together in a ratio which differs greatly from 1 and which is a predetermined amount of dispenses mixed liquids into these liquids without the weight of the vessel holding the liquid quantity having to be determined.
  • the invention is based on the fact that liquid quantities can be dosed relatively precisely with peristaltic pumps. It is also based on the knowledge that the speed with which the hose of a peristaltic pump is able to regain its original shape after being compressed by a pressure roller and thus exert a suction effect in a liquid that is largely supplied without pressure from the viscosity of this liquid depends.
  • the present invention makes use of this knowledge, because with it it becomes possible to use hoses of identical cross-sections and material properties for the conveyance of two liquids which have very different viscosities, because the hose which conveys the more viscous liquid, less quickly its original shape after compression, assumes than the other hose, which for example promotes water.
  • the rotor in the pump which carries the pressure rollers, has to rotate several times, so that by means of the speed of the pump rotor Means are available that are able to stand up in a suitable manner, taking into account the speed at which the pump hoses are able to straighten up again after being compressed are can be selected.
  • FIG. 1 shows a storage container 1 for a cocoa paste and a storage container 2 for hot water.
  • the two aforementioned storage containers 1 and 2 are provided with a hose pump, designated overall by 5, which contains two pump hoses 6 and 7, which are arranged parallel to one another on the inner circumference of a cylinder 8.
  • the two lines 3 and 4 are connected to the inlets of the pump tubes 6 and 7, while the outlets of these pump tubes are connected to lines 9 and 10 which lead to a mixing container 11 in which a stirrer 12 is arranged.
  • the mixing container 11 has an outlet line 13 in which a valve 14 is located.
  • the outlet of the valve 14 is the outlet of the beverage dispenser, under which a receptacle 15 can be arranged.
  • the hose pump 5 has a rotating rotor inside, consisting of a shaft 16 which is driven by a motor 17 and which carries an arm 18, on each end of which a roller-shaped pressure roller 19 is rotatably mounted.
  • the pressure rollers 19 are in engagement with the pressure hoses 6 and 7 such that they can compress the inner cross section almost or completely without damaging the hoses 6 and 7 (see Fig. 2 above).
  • the pump tubes 6 and 7 consist of a material with good resilience, for example of silicone rubber.
  • control device 20 which can be manually excited by means of a push button 21, for example.
  • the control device 20 acts on the electric motor 17 in such a way that it actuates the electric motor 17 for a predetermined period of time when the pushbutton 21 is actuated once. This period of time is dimensioned such that a predetermined total amount of liquid is dispensed by the peristaltic pump 5.
  • the control device 20 is connected to the stirrer 12 in order to operate it for a predetermined period of time when liquids are dispensed from the pump 5 to the mixing container 11.
  • the control device 20 is also connected to the outlet valve 14 in order to open it in a suitable timing with the operation of the stirrer 12.
  • temperature sensors 22 and 23, which are connected to the control device 20, are arranged on the storage containers 1 and 2.
  • Both storage containers 1 and 2 have temperature control devices 24 and 25 which can be controlled by the control device 20 and ensure that predetermined temperatures are maintained in the storage containers 1 and 2.
  • a peristaltic pump For dispensing a cocoa drink made from hot water and a cocoa paste in a ratio of 5: 1 is mixed together, a peristaltic pump has proven to be advantageous in which the cylinder 8 has an inner diameter of approximately 7 cm, the pump hoses consisting of silicone rubber each having an outer diameter of 9.5 mm and a wall thickness of approximately 1.75 mm and have an arc of about 320 ° in each cylinder. At speeds of the shaft 16 with the arm 18 attached to it in the range between 50 and 100 rpm, the aforementioned mixing ratio of five parts water to one part cocoa paste could be achieved with this peristaltic pump.
  • the mixing container 11 For the operation of the device, it is not necessary that the total amount to be dispensed per portion is taken up by the mixing container 11, rather the mixing container can be operated in continuous operation, at least for part of the operating time. Possibly. the outlet valve 14 can also be omitted.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Tea And Coffee (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Vending Machines For Individual Products (AREA)
EP88106770A 1988-04-27 1988-04-27 Distributeur automatique de boissons Expired - Lifetime EP0339110B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE88106770T DE3885447D1 (de) 1988-04-27 1988-04-27 Getränkespendeautomat.
EP88106770A EP0339110B1 (fr) 1988-04-27 1988-04-27 Distributeur automatique de boissons
ES198888106770T ES2013582T3 (es) 1988-04-27 1988-04-27 Maquina automatica expendedora de bebidas.
AT88106770T ATE96926T1 (de) 1988-04-27 1988-04-27 Getraenkespendeautomat.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP88106770A EP0339110B1 (fr) 1988-04-27 1988-04-27 Distributeur automatique de boissons

Publications (2)

Publication Number Publication Date
EP0339110A1 true EP0339110A1 (fr) 1989-11-02
EP0339110B1 EP0339110B1 (fr) 1993-11-03

Family

ID=8198921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106770A Expired - Lifetime EP0339110B1 (fr) 1988-04-27 1988-04-27 Distributeur automatique de boissons

Country Status (4)

Country Link
EP (1) EP0339110B1 (fr)
AT (1) ATE96926T1 (fr)
DE (1) DE3885447D1 (fr)
ES (1) ES2013582T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995033677A1 (fr) * 1994-06-08 1995-12-14 The Coca-Cola Company Distributeur economique de boissons
EP0575382B1 (fr) * 1991-03-14 1996-01-24 Schenk, Helga Agencement pour le pompage et la distribution de liquides hautement visqueux
US5803312A (en) * 1994-06-08 1998-09-08 The Coca-Cola Company Manually operable postmix juice dispenser and disposable concentrate package therefor
US6655931B2 (en) * 1998-12-23 2003-12-02 Centre National De La Recherche Scientifique Cnrs Peristaltic compressors suitable for relaxation-free compression of polarized gas

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654505A (en) * 1947-09-05 1953-10-06 Elmer O Gerth Automatic vending machine
US2832510A (en) * 1955-01-20 1958-04-29 Practical Ind Inc Vending machine
FR1331167A (fr) * 1962-08-16 1963-06-28 Behringwerke Ag Pompe à liquides et à fonctionnement continu
DE3309603A1 (de) * 1983-03-17 1984-09-20 Rhein-Ruhr-Milchhof e.G., 4300 Essen Vorrichtung fuer die dosierte abgabe von milch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654505A (en) * 1947-09-05 1953-10-06 Elmer O Gerth Automatic vending machine
US2832510A (en) * 1955-01-20 1958-04-29 Practical Ind Inc Vending machine
FR1331167A (fr) * 1962-08-16 1963-06-28 Behringwerke Ag Pompe à liquides et à fonctionnement continu
DE3309603A1 (de) * 1983-03-17 1984-09-20 Rhein-Ruhr-Milchhof e.G., 4300 Essen Vorrichtung fuer die dosierte abgabe von milch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575382B1 (fr) * 1991-03-14 1996-01-24 Schenk, Helga Agencement pour le pompage et la distribution de liquides hautement visqueux
WO1995033677A1 (fr) * 1994-06-08 1995-12-14 The Coca-Cola Company Distributeur economique de boissons
US5803312A (en) * 1994-06-08 1998-09-08 The Coca-Cola Company Manually operable postmix juice dispenser and disposable concentrate package therefor
US6655931B2 (en) * 1998-12-23 2003-12-02 Centre National De La Recherche Scientifique Cnrs Peristaltic compressors suitable for relaxation-free compression of polarized gas

Also Published As

Publication number Publication date
EP0339110B1 (fr) 1993-11-03
ES2013582A4 (es) 1990-05-16
DE3885447D1 (de) 1993-12-09
ATE96926T1 (de) 1993-11-15
ES2013582T3 (es) 1994-02-01

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