EP0418927B1 - Dispensing device for metered quantities of liquids - Google Patents

Dispensing device for metered quantities of liquids Download PDF

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Publication number
EP0418927B1
EP0418927B1 EP90118208A EP90118208A EP0418927B1 EP 0418927 B1 EP0418927 B1 EP 0418927B1 EP 90118208 A EP90118208 A EP 90118208A EP 90118208 A EP90118208 A EP 90118208A EP 0418927 B1 EP0418927 B1 EP 0418927B1
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EP
European Patent Office
Prior art keywords
piston pump
pump system
container
dispensing
stock container
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.)
Expired - Lifetime
Application number
EP90118208A
Other languages
German (de)
French (fr)
Other versions
EP0418927A1 (en
Inventor
Karlheinz Dipl.-Ing. Färber (FH)
Anton Dipl.-Ing. Deininger (Fh)
Heinz-Werner Dipl.-Ing. Giefer
George Plester
Frederick D. Dipl.-Ing. Schorr
Georg Dipl.-Ing. Troska
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.)
Coca Cola Co
Original Assignee
Coca Cola Co
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
Priority claimed from US07/410,882 external-priority patent/US5058780A/en
Priority claimed from DE19893940877 external-priority patent/DE3940877A1/en
Application filed by Coca Cola Co filed Critical Coca Cola Co
Priority to AT90118208T priority Critical patent/ATE97636T1/en
Publication of EP0418927A1 publication Critical patent/EP0418927A1/en
Application granted granted Critical
Publication of EP0418927B1 publication Critical patent/EP0418927B1/en
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
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • 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
    • B67D1/1202—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed
    • B67D1/1204—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed for ratio control purposes
    • B67D1/1231—Metering pumps
    • 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
    • B67D1/0042—Details of specific parts of the dispensers
    • B67D1/0078—Ingredient cartridges
    • B67D1/0079—Ingredient cartridges having their own dispensing means
    • 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
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0019—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes using ingredient cartridges

Definitions

  • the present invention relates to a device for the metered dispensing of liquids with a storage container in which the liquid is stored and a piston pump system connected to it as a fixed component, through which the liquid can be pumped out of the storage container.
  • Highly precise dosing devices are preferably suitable and necessary for vending machines with which carbonated water with beverage concentrates be mixed with a soft drink, to provide the beverage concentrates in a quantity-controlled manner from a storage container for the mixing process.
  • This mixing ratio should reach the standard that the comparable finished drinks put on the market have in bottles. In particular, it must be taken into account in such devices that the mixing ratio between different beverage concentrates and the added carbonated water is different.
  • Dosing chamber dispensers for dispensing beverage concentrates have become known for use in vending machines (DE-A-25 44 671, DE-A-34 09 142, DE-A-36 22 745). In their operating position, these metering chamber dispensers are arranged on a storage container with the dispensing opening directed downwards. By means of a magnet system, a control slide within this metering chamber dispensing device is lifted from a lower position, in which the outlet-side flow opening is closed, to an upper position, in which the inlet-side flow opening is closed, so that the metering chamber contents are released by gravity the reservoir was filled, can also flow out of the metering chamber dispenser by gravity. The respective dispensing volume of the beverage concentrate is compensated for by a counter-flowing air volume. With metering chamber dispensing devices of this type, relatively low-volume dispensing quantities can be provided with low control forces to be used - conveying forces are not required.
  • the known metering chamber dispensing devices can be reduced in size extremely problematically due to the technical circumstances with regard to their size and thus the dispensing volume.
  • the object of the present invention is now to provide a device for the metered dispensing of liquids, in which the guarantee is given to the maximum extent that the liquid stored in a storage container with respect to the dispensing volume is dispensed in a liquid-specific manner by a standardized dispensing drive system.
  • the device should meet the requirements for simple and functionally reliable handling.
  • a device that meets these requirements is characterized in accordance with the invention in that for the connection of the device to a device with a standardized drive device both on the actuating member of the piston pump system and on the piston pump housing, a mounting and coupling counterpart for the front, plug-in and interlocking connection are arranged on a stationary counterpart of a device housing and on a counterpart of an actuating member of the stationary device drive device.
  • the measure that the piston pump system is attached to it as an integral part of the storage container and is designed to be liquid type-specific with regard to the dispensing volume per working stroke is achieved in that the dispensing container storing the dispensing liquid can be connected with its piston pump system to a standardized drive device, whereby it is ensured that that the liquid-type-specific quantity is output per working cycle via this standardized drive device.
  • This measure is particularly and of great importance when the device according to the invention for dispensing in storage containers
  • Stocked beverage concentrates are used in vending machines in which these beverage concentrates are mixed with a basic liquid, eg carbonated water, to prepare a beverage in the ratio specified by the beverage concentrate used.
  • the piston pump system has plug connections for a stationary (device-fixed) mounting of the piston pump housing and for a coupling to an actuating member of a stationary (device-fixed) drive device serves for functionally simple handling by operators.
  • the corresponding mounting and coupling counterparts are expediently arranged in the device housing in such a way that the piston pump system with the storage container arranged thereon can be used as far as possible from the front.
  • the device according to the invention is characterized in that the storage container contains a film bag which surrounds the stored liquid in a volume-adapted manner.
  • the film sack of the storage container is closed off by a cuboid-shaped container with shape-retaining container walls, allowing atmospheric compensation to the interior.
  • a piston pump system it is even possible to use a film bag without interior ventilation, since the suction force transmitted to the stored liquid via the piston pump system ensures a reliable dispensing volume, even if different opposing forces are caused by the walls of the in the different folding situations when the film bag is folded Foil bags are caused.
  • the device according to the invention is characterized in that the piston pump system is connected to the reservoir via a conical, elastic intermediate piece, which holds the piston pump system in its working position outside the shape-retaining reservoir limitation and in the transport and storage position within the shape-retaining reservoir limitation.
  • a storage container 1 for receiving a beverage concentrate 2 made up of an inner container with flexible walls 3 and a box-shaped container enclosing this inner container 3 with essentially dimensionally stable and thus essentially the outer contours of the container walls 4.
  • the flexible Walls 3 of the inner container can be compared to the stored output volume - shown additionally by the dashed line - or the respective remaining volume - shown as a solid line - of the beverage concentrate 2. It is important that air can get between the walls 4 and the walls 3 through cracks, openings or through porosity in the areas of the walls 4, so that the walls 3 can follow the decreasing volume of the beverage concentrate 2.
  • the dispensing device 7 is firmly connected to the walls 3 and to the walls 4 of the storage container 1 via a cone 6 made of elastic material.
  • the connection of the cone 6 to the walls 4 leads to an expedient and desired handling stability.
  • the cone 6 'with the dispensing device 7' is placed inside the storage container 1, as the dash-dotted representation of the cone 6 'is intended to illustrate.
  • the cone 6 with the dispensing device 7 is as shown with solid lines, turned outwards.
  • the arrangement described with reference to FIG. 2 is part of a vending machine for dispensing beverage concentrate 2 from a storage container 1, this beverage concentrate being miscible with a carbonated water to give a soft drink. Furthermore, one or more storage containers 1 for beverage concentrates 2 are arranged in a storage space 9 of the drinks machine appliance housing 8. In order to ensure the desired mixing ratio with the further beverage component, namely the carbonated water, a piston pump system is used as the dispensing device 7, by means of which the stocked beverage concentrate 2 is dispensed and quantitatively dispensed.
  • the piston pump system 7 consists of a housing 13, which is held in the dispensing area of the vending machine in the device housing 8 so that it can be inserted from the front.
  • the housing 13 of the piston pump system 7 has a groove 14 into which a shoulder 15 of the device housing 8 engages in a horseshoe shape.
  • a delivery piston 16 is arranged to be axially displaceable between limit stops. These stops determine the delivery stroke, which determines the delivery volume for the beverage concentrate 2 to be dispensed per work cycle.
  • An inflow opening 17 in the housing 13 of the piston pump system 7 extends to the storage container 1, which is only indicated, and is concentrically aligned with a central passage 18 in the delivery piston 16, so that a shaft of a control piston 19 can be axially displaceably guided therein.
  • the axial movement between the control piston 19 and the delivery piston 16 is in turn limited by stops 27.
  • the control piston 19 is driven via a lever 20, which engages with its one lever end 21 in a fork-shaped manner in a groove 22 of the control piston 19.
  • the lever 20 is mounted about an axis 23 arranged in the device housing 8 and is driven by an eccentric drive 24, which is gripped by the second lever arm 25 of the lever 20, by rotation in the direction of the arrow.
  • the working piston 16 is also moved downward via the stop region 26, so that the beverage concentrate 2 is sucked out of the reservoir 8 into the piston pump system 7 via the inflow opening 17 .
  • the upper shaft of the control piston 19 initially reaches the area of the inflow opening 17 and closes it.
  • the stop areas 27 between the control piston 19 and the delivery piston 16 are brought together, so that the delivery piston 16 is now moved upward with the control piston 19.
  • the beverage concentrate volume originally sucked into the piston pump system 7 is conveyed via lateral channels 28 in the control piston 19 to a central delivery channel 29 in the control piston 19.
  • the beverage concentrate reaches the outside in an area in which it is mixed with carbonated water, which is also supplied, to form a beverage.
  • Any number of work cycles can be started immediately series and counting, for which an extremely precise determination and assignment of the output quantity of the individual work cycles as well as the total of the work cycles can be carried out.
  • the fixed assignment of the dispensing device 7 to the respective storage container 1 and thus to the beverage concentrate stored in this container 1 serves to ensure that the beverage concentrate volume to be dispensed by the dispensing device per working cycle or working cycles is directly related to the type of the respective beverage concentrate and thus the mixing ratio for what is to be provided Soft drink can be designed.
  • the parts of the dispensing device 1 are preferably made of plastic.

Abstract

In the device for dispensing metered quantities of liquids, a piston pump system is fixed to the storage container as a rigid component thereof, the piston pump system having plug-type connections for fixed mounting of the piston pump housing and for coupling to an actuating member of a fixedly arranged drive mechanism. <IMAGE>

Description

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zur dosierten Ausgabe von Flüssigkeiten mit einem Vorratsbehälter, in welchem die Flüssigkeit bevorratet ist, und einem an diesen als fester Bestandteil angeschlossenen Kolbenpumpensystem, durch das die Flüssigkeit aus dem Vorratsbehälter abpumpbar ist.The present invention relates to a device for the metered dispensing of liquids with a storage container in which the liquid is stored and a piston pump system connected to it as a fixed component, through which the liquid can be pumped out of the storage container.

Es ist bekannt, Flüssigkeiten über eine Verschlußkappe mit Kolbendosiervorrichtungsfunktion auszugeben, wobei diese Verschlußkappe fest oder lösbar dem die auszugebende Flüssigkeit beinhaltenden Vorratsbehälter zugeordnet wird (FR-A-1 064 626). Die Vorrichtung läßt sich aufgrund der gewählten Konzeption zum Zwecke der Flüssigkeitsausgabe über den Kolbenstößel zusammendrücken, wobei die Druckkräfte einerseits auf diese Kolbenstößel und andererseits über den Vorratsbehälter ausgeübt werden. Zugkräfte zur gegenläufigen Bewegung des Kolbenstößels sind zum einen entbehrlich, da der Kolben in dieser Richtung durch innenliegende Druckfedern bewegt wird, und zum anderen mangels entsprechend vorgesehener Maßnahme präzise auch nicht möglich. Neben anderen eignet sich auch aus diesen Gründen eine derartige Dosiermaßnahme nicht besonders zur Dosierung z.B. von Getränkekonzentraten mit einer weiteren Substanz zur Erzielung einer hohen Mischgenauigkeit.It is known to dispense liquids via a closure cap with a piston metering device function, this closure cap being permanently or detachably assigned to the storage container containing the liquid to be dispensed (FR-A-1 064 626). The device can be compressed due to the chosen concept for the purpose of dispensing liquid via the piston tappet, the pressure forces being exerted on the one hand on these piston tappets and on the other hand via the storage container. Tractive forces for the opposing movement of the piston tappet are dispensable on the one hand, since the piston is moved in this direction by internal compression springs, and on the other hand precisely not possible due to the lack of a correspondingly provided measure. For these reasons, among other things, such a metering measure is not particularly suitable for metering e.g. of beverage concentrates with another substance to achieve high mixing accuracy.

Hochgenaue Dosiervorrichtungen sind bevorzugt dazu geeignet und erforderlich für Getränkeautomaten, mit denen karbonisiertes Wasser mit Getränkekonzentraten zu einem Erfrischungsgetränk vermischt werden, die Getränkekonzentrate mengenkontrolliert aus einem Vorratsbehälter für den Mischvorgang zur Verfügung zu stellen. In diesem Zusammenhang ist es besonders wichtig, unter Verwendung möglichst einfacher Mittel neben der genauen Dosierung des karbonisierten Wassers auch die abzugebenden Getränkekonzentrate genau zu dosieren, um das gewünschte Mischungsverhältnis für das bereitzustellende Getränk mit der erforderlichen Genauigkeit zu erzielen. Dieses Mischungsverhältnis soll den Standard erreichen, welchen die vergleichbaren, in Flaschen auf den Markt gebrachten Fertiggetränke aufweisen. Insbesondere ist bei derartigen Vorrichtungen zu berücksichtigen, daß das Mischungsverhältnis zwischen unterschiedlichen Getränkekonzentraten und dem zugemischten karbonisierten Wasser unterschiedlich ist.Highly precise dosing devices are preferably suitable and necessary for vending machines with which carbonated water with beverage concentrates be mixed with a soft drink, to provide the beverage concentrates in a quantity-controlled manner from a storage container for the mixing process. In this context, it is particularly important to use the simplest possible means, in addition to the exact metering of the carbonated water, to precisely meter the beverage concentrates to be dispensed in order to achieve the desired mixing ratio for the beverage to be provided with the required accuracy. This mixing ratio should reach the standard that the comparable finished drinks put on the market have in bottles. In particular, it must be taken into account in such devices that the mixing ratio between different beverage concentrates and the added carbonated water is different.

Für den Einsatz in Getränkeautomaten sind zur Ausgabe von Getränkekonzentraten Dosierkammer-Ausgabeeinrichtungen bekannt geworden (DE-A-25 44 671, DE-A-34 09 142, DE-A-36 22 745). In ihrer Betriebslage sind diese Dosierkammer-Ausgabeeinrichtungen an einem Vorratsbehälter mit der Ausgabeöffnung nach unten gerichtet angeordnet. Durch ein Magnetsystem wird ein Steuerschieber innerhalb dieser Dosierkammer-Ausgabeeinrichtung aus einer unteren Lage, in der die ausgangsseitige Durchflulßöffnung verschlossen ist, in eine obere Stellung, in der die eingangsseitige Durchflußöffnung verschlossen ist, gehoben, so daß der Dosierkammer-Inhalt, der durch Schwerkraft aus dem Vorratsbehälter aufgefüllt wurde, ebenfalls durch Schwerkraft aus der Dosierkammer-Ausgabeeinrichtung herausfließen kann. Das jeweilige Ausgabevolumen des Getränkekonzentrats wird durch ein entgegenströmendes Luftvolumen ausgeglichen. Mit derartigen Dosierkammer-Ausgabeeinrichtungen lassen sich bei geringen aufzuwendenden Steuerkräften - Förderkräfte werden nicht benötigt - relativ volumengenaue Ausgabemengen bereitgestellt.Dosing chamber dispensers for dispensing beverage concentrates have become known for use in vending machines (DE-A-25 44 671, DE-A-34 09 142, DE-A-36 22 745). In their operating position, these metering chamber dispensers are arranged on a storage container with the dispensing opening directed downwards. By means of a magnet system, a control slide within this metering chamber dispensing device is lifted from a lower position, in which the outlet-side flow opening is closed, to an upper position, in which the inlet-side flow opening is closed, so that the metering chamber contents are released by gravity the reservoir was filled, can also flow out of the metering chamber dispenser by gravity. The respective dispensing volume of the beverage concentrate is compensated for by a counter-flowing air volume. With metering chamber dispensing devices of this type, relatively low-volume dispensing quantities can be provided with low control forces to be used - conveying forces are not required.

Die bekannten Dosierkammer-Ausgabeeinrichtungen sind aufgrund der technischen Gegebenheiten bezüglich ihrer Größe und damit des Ausgabevolumens äußerst problematisch verkleinerbar. Um auf zugeführte Förderkräfte verzichten zu können, ist es für eine zuverlässige dosierte Volumenausgabe auch erforderlich, daß das ausgegebene Getränkekonzentrat-Volumen durch Luftvolumen zumindest in etwa ausgeglichen wird.The known metering chamber dispensing devices can be reduced in size extremely problematically due to the technical circumstances with regard to their size and thus the dispensing volume. In order to be able to dispense with supplied conveying forces, it is also necessary for reliable metered volume dispensing that the volume of beverage concentrate dispensed is at least approximately compensated for by air volume.

Es ist auch bekannt (US-A-3 667 499) aus einem flexiblen Vorratsbehälter Flüssigkeit mit Hilfe eines Pumpsystems zu entnehmen und auszugeben. Mit Hilfe einer derartigen Maßnahme kann ein Vorratsbehälter mit flexiblen Wandungen entleert werden, ohne daß zum Volumenausgleich im Vorratsbehälter Luft nachströmen kann oder muß. Als brauchbare Dosiereinrichtung, beispielsweise für Getränkekonzentrate zur Erzielung, ist diese bekannte Anordnung jedoch nicht geeignet und auch nicht vorgesehen. Neben den erwähnten Dosierkammer-Ausgabeeinrichtungen bieten entsprechend ausgestaltete Kolbenpumpensysteme die Gewährleistung für eine volumengenaue Dosierung bei der Förderung und Ausgabe von Flüssigkeiten.It is also known (US-A-3 667 499) to withdraw and dispense liquid from a flexible reservoir using a pump system. With the help of such a measure, a storage container with flexible walls can be emptied without air being able to or having to flow in to the volume compensation in the storage container. However, this known arrangement is not suitable and is also not intended as a usable metering device, for example for beverage concentrates to achieve this. In addition to the metering chamber dispensing devices mentioned, appropriately designed piston pump systems guarantee the exact metering of volume when conveying and dispensing liquids.

Die Aufgabe der vorliegenden Erfindung liegt nunmehr darin, eine Vorrichtung zur dosierten Ausgabe von Flüssigkeiten bereitzustellen, bei der die Gewähr in einem Höchstmaß gegeben ist, daß die in einem Vorratsbehälter bevorratete Flüssigkeit bezügli ch des Ausgabevolumens flüssigkeitsspezifisch durch ein standartisiertes Ausgabe-Antriebssystem ausgegeben wird. Außerdem soll die Vorrichtung die Anforderungen an eine einfache und funktionszuverlässige Handhabung erfüllen.The object of the present invention is now to provide a device for the metered dispensing of liquids, in which the guarantee is given to the maximum extent that the liquid stored in a storage container with respect to the dispensing volume is dispensed in a liquid-specific manner by a standardized dispensing drive system. In addition, the device should meet the requirements for simple and functionally reliable handling.

Eine Vorrichtung, die diesen Anforderungen genügt, ist erfindungsgemäß dadurch gekennzeichnet, daß für den Anschluß der Vorrichtung an ein Gerät mit einer standardisierten Antriebsvorrichtung sowohl am Betätigungsorgan des Kolbenpumpensystems als auch am Kolbenpumpengehäuse je ein Halterungs- und Ankopplungs-Gegenstück zum gerätefrontseitigen, steckgesicherten und ineinandergreifenden Anschließen an ein ortsfestes Gegenstück eines Gerätegehäuses und an ein Gegenstück eines Betätigungsorgans der ortsfesten Geräte-Ant riebsvorrichtung angeordnet sind.A device that meets these requirements is characterized in accordance with the invention in that for the connection of the device to a device with a standardized drive device both on the actuating member of the piston pump system and on the piston pump housing, a mounting and coupling counterpart for the front, plug-in and interlocking connection are arranged on a stationary counterpart of a device housing and on a counterpart of an actuating member of the stationary device drive device.

Die Maßnahme, daß das Kolbenpumpensystem als fester Bestandteil des Vorratsbehälters an diesem befestigt und bezüglich des Ausgabevolumens je Arbeitshub flüssigkeitsarten-spezifisch ausgelegt ist, wird erreicht, daß der die Ausgabeflüssigkeit bevorratende Vorratsbehälter mit seinem Kolbenpumpensystem an eine standardisierte Antriebsvorrichtung angeschlossen werden kann, wobei sichergestellt ist, daß über diese standartisierte Antriebsvorrichtung jeweils die flüssigkeitsart-spezifische Menge je Arbeitszyklus ausgegeben wird. Diese Maßnahme ist insbesondere und dann von hoher Bedeutung, wenn die erfindungsgemäße Vorrichtung zur Ausgabe von in Vorratsbehältern bevorrateten Getränkekonzent raten in Getränkeautomaten verwendet wird, in denen diese Getränkekonzentrate mit einer Grundflüssigkeit, z.B. karbonisiertem Wasser, zur Bereitung eines Getränks im durch das jeweils verwendete Getränkekonzentrat vorgegebenen Verhältnis gemischt werden. In diesem Fall ist es nämlich wünschenswert, entleerte Vorratsbehälter durch neue Behälter mit der gleichen Art des Getränkekonzentrats zu ersetzen, sondern insbesondere auch Vorratsbehälter mit unterschiedlichen Getränkekonzentraten beliebig nach Wunsch des Anwenders einzusetzen. Bedienungstechnische Fehler, die zu falschen Mischungsergebnissen führen könnten, sind bei Anwendung der erfindungsgemäßen Vorrichtung ausgeschlossen. Die Tatsache, daß das Kolbenpumpensystem Steckanschlüsse für eine ortsfeste (gerätefeste) Halterung des Kolbenpumpengehäuses und für eine Ankopplung an ein Betätigungsorgan einer ortsfest (gerätefest) angeordneten Antriebseinrichtung aufweist, dient der funktionssichernden einfachen Handhabung durch Bedienungspersonen. Im Gerätegehäuse werden zweckmäßigerweise die entsprechenden Halterungsund Ankopplungs-Gegenstücke so angeordnet sein, daß das Kolbenpumpensystem mit dem darauf angeordneten Vorratsbehälter möglichst frontseitig eingesetzt werden kann.The measure that the piston pump system is attached to it as an integral part of the storage container and is designed to be liquid type-specific with regard to the dispensing volume per working stroke is achieved in that the dispensing container storing the dispensing liquid can be connected with its piston pump system to a standardized drive device, whereby it is ensured that that the liquid-type-specific quantity is output per working cycle via this standardized drive device. This measure is particularly and of great importance when the device according to the invention for dispensing in storage containers Stocked beverage concentrates are used in vending machines in which these beverage concentrates are mixed with a basic liquid, eg carbonated water, to prepare a beverage in the ratio specified by the beverage concentrate used. In this case it is namely desirable to replace empty storage containers with new containers with the same type of beverage concentrate, but in particular also to use storage containers with different beverage concentrates as desired by the user. Operating errors that could lead to incorrect mixing results are excluded when using the device according to the invention. The fact that the piston pump system has plug connections for a stationary (device-fixed) mounting of the piston pump housing and for a coupling to an actuating member of a stationary (device-fixed) drive device serves for functionally simple handling by operators. The corresponding mounting and coupling counterparts are expediently arranged in the device housing in such a way that the piston pump system with the storage container arranged thereon can be used as far as possible from the front.

Nach einer bevorzugten Ausgestaltung ist die erfindungsgemäße Vorrichtung dadurch gekennzeichnet, daß der Vorratsbehälter einen Foliensack beinhaltet, der die bevorratete Flüssigkeit volumenangepaßt umschließt. Insbesondere mit Rücksicht auf die Transportfähigkeit, Stapelbarkeit und Handhabbarkeit ist der Foliensack des Vorratsbehälters durch einen quaderförmigen Behälter mit formhaltenden Behälterwandungen nach außen einen Atmosphärenausgleich ins Innere zulassend abgeschlossen. In Verbindung mit einem Kolbenpumpensystem ist es selbst dann möglich, einen Foliensack ohne Innenraumbelüftung zu verwenden, da die über das Kolbenpumpensystem auf die bevorratete Flüssigkeit übertragene Saugkraft ein zuverlässiges Ausgabevolumen sicherstellt, auch wenn beim Zusammenfalten des Foliensacks in den unterschiedlichen Faltsituationen unterschiedliche Gegenkräfte durch die Wandungen des Foliensacks hervorgerufen werden.According to a preferred embodiment, the device according to the invention is characterized in that the storage container contains a film bag which surrounds the stored liquid in a volume-adapted manner. In particular with regard to transportability, stackability and manageability, the film sack of the storage container is closed off by a cuboid-shaped container with shape-retaining container walls, allowing atmospheric compensation to the interior. In connection with a piston pump system, it is even possible to use a film bag without interior ventilation, since the suction force transmitted to the stored liquid via the piston pump system ensures a reliable dispensing volume, even if different opposing forces are caused by the walls of the in the different folding situations when the film bag is folded Foil bags are caused.

Nach einer anderen bevorzugten Ausgestaltung ist die erfindungsgemäße Vorrichtung dadurch gekennzeichnet, daß das Kolbenpumpensystem mit dem Vorratsbehälter über ein konisches, elastisches Zwischenstück verbunden ist, welches das Kolbenpumpensystem in seiner Arbeitslage außerhalb der formhaltenden Vorratsbehalterbegrenzung und in der Transport- und Aufbewahrungslage innerhalb der formhaltenden Vorratsbehälterbegrenzung hält.According to another preferred embodiment, the device according to the invention is characterized in that the piston pump system is connected to the reservoir via a conical, elastic intermediate piece, which holds the piston pump system in its working position outside the shape-retaining reservoir limitation and in the transport and storage position within the shape-retaining reservoir limitation.

Ein nach den Merkmalen der Erfindung ausgestaltetes Ausführungsbeispiel ist anhand der Zeichnung im folgenden näher beschrieben. Es zeigen:

Fig. 1
einen Vorratsbehälter für ein Getränkekonzentrat mit einer damit verbundenen Ausgabevorrichtung in schematisierter Darstellung und
Fig. 2
diese Ausgabevorichtung in Verbindung mit einem Antriebsystem in ebenfalls schematisierter Darstellung.
An embodiment designed according to the features of the invention is described in more detail below with reference to the drawing. Show it:
Fig. 1
a storage container for a beverage concentrate with an associated output device in a schematic representation and
Fig. 2
this output device in connection with a drive system in a likewise schematic representation.

Bei der Anordnung gemäß Fig. 1 ist ein Vorratsbehälter 1 zur Aufnahme eines Getränkekonzentrats 2, aufgebaut aus einem Innenbehälter mit flexiblen Wandungen 3 und einem diesen Innenbehälter 3 umschließenden, schachtelförmigen Behälter mit im wesentlichen formstabilen und damit die Außenkonturen im wesentlichen erhaltenden Behälterwandungen 4. Die flexiblen Wandungen 3 des Innenbehälters lassen sich dem bevorrateten Ausgangsvolumen - ergänzend dargestellt durch die gestrichelte Linie - bzw. dem jeweils bevorrateten Restvolumens - dargestellt als ausgezogenen Linie - des Getränkekonzentrats 2 an. Hierbei ist es wichtig, daß durch Ritzen, Öffnungen oder durch Porösität in den Bereichen der Wandungen 4 Luft zwischen die Wandungen 4 und die Wandungen 3 gelangen kann, damit die Wandungen 3 dem sich verringernden Volumen des Getränkekonzentrats 2 folgen kann. Im Bereich der Ausgabestelle 5 ist über einen Konus 6 aus elastischem Material die Ausgabevorrichtung 7 mit den Wandungen 3 und mit den Wandungen 4 des Vorratsbehälters 1 fest verbunden. Die Verbindungen des Konus 6 zu den Wandungen 4 führt zu einer zweckmäßigen und gewünschten Handhabungsstabilität.1 is a storage container 1 for receiving a beverage concentrate 2, made up of an inner container with flexible walls 3 and a box-shaped container enclosing this inner container 3 with essentially dimensionally stable and thus essentially the outer contours of the container walls 4. The flexible Walls 3 of the inner container can be compared to the stored output volume - shown additionally by the dashed line - or the respective remaining volume - shown as a solid line - of the beverage concentrate 2. It is important that air can get between the walls 4 and the walls 3 through cracks, openings or through porosity in the areas of the walls 4, so that the walls 3 can follow the decreasing volume of the beverage concentrate 2. In the area of the dispensing point 5, the dispensing device 7 is firmly connected to the walls 3 and to the walls 4 of the storage container 1 via a cone 6 made of elastic material. The connection of the cone 6 to the walls 4 leads to an expedient and desired handling stability.

In der Transport- und Aufbewahrungslage ist der Konus 6' mit der Ausgabevorrichtung 7' in den Innenbereich des Vorratsbehälters 1 gestülpt, wie die strichpunktierte Darstellung des Konus 6' veranschaulichen soll. In der Arbeitslage, in der der Vorratsbehälter 1 in einen Getränkeautomaten eingesetzt ist und in der durch Betätigung der Ausgabevorrichtung 7 Getränkekonzentrat zum Zwecke der Mischung, beispielsweise mit karbonisiertem Wasser, zur Bereitstellung eines Erfrischungsgetränks ausgegeben werden soll, ist der Konus 6 mit der Ausgabevorrichtung 7, wie mit durchgehenden Linien dargestellt, nach außen gestülpt.In the transport and storage position, the cone 6 'with the dispensing device 7' is placed inside the storage container 1, as the dash-dotted representation of the cone 6 'is intended to illustrate. In the working position in which the storage container 1 is inserted into an automatic beverage dispenser and in which beverage concentrate is to be dispensed by actuating the dispensing device 7 for the purpose of mixing, for example with carbonated water, in order to provide a soft drink, the cone 6 with the dispensing device 7 is as shown with solid lines, turned outwards.

Die anhand der Fig. 2 beschriebene Anordnung ist als Bestandteil eines Getränkeautomaten zur Ausgabe von Getränkekonzentrat 2 aus einem Vorratsbehälter 1, wobei dieses Getränkekonzentrat zusammen mit anderweitig ausgegebenem karbonisierten Wasser zu einem Erfrischungsgetränk vermischbar ist. Ferner sind in einem Bevorratungsraum 9 des Getränkeautomaten-Gerätegehäuses 8 ein oder mehrere Vorratsbehälter 1 für Getränkekonzentrate 2 angeordnet. Um das gewünschte Mischungsverhältnis mit der weiteren Getränkekomponente, nämlich dem karbonisierten Wasser zu gewährleisten, wird als Ausgabevorrichtung 7 ein Kolbenpumpensystem zum Einsatz gebracht, durch welches das bevorratete Getränkekonzentrat 2 mengenmäßig dosierbar und erfaßbar ausgegeben wird.The arrangement described with reference to FIG. 2 is part of a vending machine for dispensing beverage concentrate 2 from a storage container 1, this beverage concentrate being miscible with a carbonated water to give a soft drink. Furthermore, one or more storage containers 1 for beverage concentrates 2 are arranged in a storage space 9 of the drinks machine appliance housing 8. In order to ensure the desired mixing ratio with the further beverage component, namely the carbonated water, a piston pump system is used as the dispensing device 7, by means of which the stocked beverage concentrate 2 is dispensed and quantitatively dispensed.

Das Kolbenpumpensystem 7 besteht aus einem Gehäuse 13, welches im Ausgabebereich des Getränkeautomaten in dessen Gerätegehäuse 8 frontseitig einsteckbar gehaltert ist. Dazu weist das Gehäuse 13 des Kolbenpumpensystems 7 eine Nut 14 auf, in die ein Ansatz 15 des Gerätegehäuses 8 hufeisenförmig eingreift. Innerhalb dieses Gehäuses 13 des Kolbenpumpensystems 7 ist ein Förderkolben 16 axial zwischen Anschlagbegrenzungen verschieblich angeordnet. Durch diese Anschläge wird der Förderhub festgelegt, welcher das Fördervolumen für das auszugebende Getränkekonzentrat 2 je Arbeitszyklus bestimmt. Eine Zuflußöffnung 17 im Gehäuse 13 des Kolbenpumpensystems 7 erstreckt sich hin zum lediglich angedeuteten Vorratsbehälter 1 und fluchtet konzentrisch mit einer zentralen Durchführung 18 im Förderkolben 16, so daß darin ein Schaft eines Steuerkolbens 19 axial verschieblich geführt werden kann. Die axiale Bewegung zwischen Steuerkolben 19 und Förderkolben 16 wird wiederum begrenzt durch Anschläge 27. Angetrieben wird der Steuerkolben 19 über einen Hebel 20, der mit seinem einen Hebelende 21 gabelförmig in eine Nut 22 des Steuerkolbens 19 eingreift. Der Hebel 20 ist um eine ortsfest im Gerätegehäuse 8 angeordnete Achse 23 gelagert und wird durch einen Exzenterantrieb 24, welcher vom zweiten Hebelarm 25 des Hebels 20 gabelförmig umgriffen wird, durch Drehung in Pfeilrichtung angetrieben.The piston pump system 7 consists of a housing 13, which is held in the dispensing area of the vending machine in the device housing 8 so that it can be inserted from the front. For this purpose, the housing 13 of the piston pump system 7 has a groove 14 into which a shoulder 15 of the device housing 8 engages in a horseshoe shape. Within this housing 13 of the piston pump system 7, a delivery piston 16 is arranged to be axially displaceable between limit stops. These stops determine the delivery stroke, which determines the delivery volume for the beverage concentrate 2 to be dispensed per work cycle. An inflow opening 17 in the housing 13 of the piston pump system 7 extends to the storage container 1, which is only indicated, and is concentrically aligned with a central passage 18 in the delivery piston 16, so that a shaft of a control piston 19 can be axially displaceably guided therein. The axial movement between the control piston 19 and the delivery piston 16 is in turn limited by stops 27. The control piston 19 is driven via a lever 20, which engages with its one lever end 21 in a fork-shaped manner in a groove 22 of the control piston 19. The lever 20 is mounted about an axis 23 arranged in the device housing 8 and is driven by an eccentric drive 24, which is gripped by the second lever arm 25 of the lever 20, by rotation in the direction of the arrow.

Dreht sich aus der in Fig. 2 dargestellten Lage der Exzenter 24 in Pfeilrichtung weiter, so wird über den Anschlagbereich 26 der Arbeitskolben 16 mit nach unten bewegt, so daß das Getränkekonzentrat 2 aus dem Vorratsbehälter 8 in das Kolbenpumpensystem 7 über die Zuflußöffnung 17 angesaugt wird. Bei weiterer Drehung des Exzenters 24 gelangt vorerst der obere Schaft des Steuerkolbens 19 in den Bereich der Zuflußöffnung 17 und verschließt diese. Bei weiterer Aufwärtsbewegung des Steuerkolbens 19 werden die Anschlagbereiche 27 zwischen Steuerkolben 19 und Förderkolben 16 zusammen, so daß der Förderkolben 16 nunmehr mit dem Steuerkolben 19 nach oben bewegt wird. Dabei wird das ursprünglich in das Kolbenpumpensystem 7 angesaugte Getränkekonzentrat-Volumen über seitliche Kanäle 28 im Steuerkolben 19 zu einem zentralen Ausgabekanal 29 im Steuerkolben 19 gefördert. Aus diesem zentralen Ausgabekanal 29 gelangt das Getränkekonzentrat nach außen in einen Bereich, in dem es mit ebenfalls zugeführtem karbonisierten Wasser zu einem Getränk vermischt wird. Es lassen sich beliebig viele Arbeitszyklen unmittelbar an einanderreihen und zähltechnisch erfassen, für das sich eine äußerst genaue Bestimmung und Zuordnung der Ausgabemenge der einzelnen Arbeitszyklen als auch der Gesamtheit der Arbeitszyklen durchführen lassen.If the eccentric 24 rotates further from the position shown in FIG. 2, the working piston 16 is also moved downward via the stop region 26, so that the beverage concentrate 2 is sucked out of the reservoir 8 into the piston pump system 7 via the inflow opening 17 . When the eccentric 24 rotates further, the upper shaft of the control piston 19 initially reaches the area of the inflow opening 17 and closes it. Upon further upward movement of the control piston 19, the stop areas 27 between the control piston 19 and the delivery piston 16 are brought together, so that the delivery piston 16 is now moved upward with the control piston 19. The beverage concentrate volume originally sucked into the piston pump system 7 is conveyed via lateral channels 28 in the control piston 19 to a central delivery channel 29 in the control piston 19. From this central dispensing channel 29, the beverage concentrate reaches the outside in an area in which it is mixed with carbonated water, which is also supplied, to form a beverage. Any number of work cycles can be started immediately series and counting, for which an extremely precise determination and assignment of the output quantity of the individual work cycles as well as the total of the work cycles can be carried out.

Die feste Zuordnung der Ausgabevorrichtung 7 zum jeweiligen Vorratsbehälter 1 und damit zum in diesem Behälter 1 bevorrateten Getränkekonzentrat dient dazu, daß das durch die Ausgabevorrichtung je Arbeitszyklus bzw. je Arbeitszyklen auszugebende Getränkekonzentrats-Volumen unmittelbar der Art des jeweiligen Getränkekonzentrats und damit dem Mischungsverhältnis für das bereitzustellende Erfrischungsgetränk ausgelegt werden kann. Die Teile der Ausgabevorrichtung 1 sind bevorzugterweise aus Kunststoff gefertigt.The fixed assignment of the dispensing device 7 to the respective storage container 1 and thus to the beverage concentrate stored in this container 1 serves to ensure that the beverage concentrate volume to be dispensed by the dispensing device per working cycle or working cycles is directly related to the type of the respective beverage concentrate and thus the mixing ratio for what is to be provided Soft drink can be designed. The parts of the dispensing device 1 are preferably made of plastic.

Claims (4)

  1. Device for the metered delivery of liquids with a stock container, in which the liquid is kept in reserve, and a piston pump system, which is connected thereto as fixed component and by which the liquid can be pumped away out of the stock container, characterised thereby, that for the connection of the device to an apparatus with a standardised driving device (20, 24), a respective mounting and coupling countermember (14, 22) is arranged at the actuating organ (21) of the piston pump system as well as atthe piston pump housing (13) for the plug-secured interengaging connection at the front of the apparatus to a fixedly located countermember (15) of an apparatus housing (8) and to a countermember of an actuating organ of the fixedly located apparatus driving device (20, 24).
  2. Device according to claim 1, characterised thereby, that the stock container (1) contains a foil bag with flexible walls (3), which in adaptation to volume encloses the liquid (2) kept in reserve.
  3. Device according to claim 2, characterised thereby, that the stock container (1) is closed off outwardly by a parallelepipedonal container with shape-maintaining container walls (4).
  4. Device according to one of the claims 1 to 3, characterised thereby, that the piston pump system is connected with the stock container (1) by way of a conical intermediate member (6), which is of elastic material and which holds the piston pump system (7) in its operative position outside the shape-maintaining stock container boundaries and in the transport and storage position within the shape-maintaining stock container boundaries.
EP90118208A 1989-09-22 1990-09-21 Dispensing device for metered quantities of liquids Expired - Lifetime EP0418927B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90118208T ATE97636T1 (en) 1989-09-22 1990-09-21 DEVICE FOR DOSED DISPENSING OF LIQUIDS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US410882 1989-09-22
US07/410,882 US5058780A (en) 1989-09-22 1989-09-22 Dosing system for an unvented container
DE3940877 1989-12-11
DE19893940877 DE3940877A1 (en) 1989-12-11 1989-12-11 Liq. dispenser with reservoir and pump

Publications (2)

Publication Number Publication Date
EP0418927A1 EP0418927A1 (en) 1991-03-27
EP0418927B1 true EP0418927B1 (en) 1993-11-24

Family

ID=25887869

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90118208A Expired - Lifetime EP0418927B1 (en) 1989-09-22 1990-09-21 Dispensing device for metered quantities of liquids

Country Status (10)

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EP (1) EP0418927B1 (en)
JP (1) JP2610604B2 (en)
KR (1) KR910006141A (en)
AT (1) ATE97636T1 (en)
AU (2) AU644100B2 (en)
CA (1) CA2025905C (en)
DD (1) DD297616A5 (en)
DE (1) DE59003590D1 (en)
DK (1) DK0418927T3 (en)
ES (1) ES2046639T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0418927B1 (en) * 1989-09-22 1993-11-24 BOSCH-SIEMENS HAUSGERÄTE GmbH Dispensing device for metered quantities of liquids
US5312017A (en) * 1991-08-30 1994-05-17 The Coca-Cola Company Product identification system for beverage dispenser
US5211314A (en) * 1991-12-27 1993-05-18 Ebtech, Inc. Syrup dispenser and valve assembly
US7905373B2 (en) * 2006-03-06 2011-03-15 Deka Products Limited Partnership System and method for generating a drive signal

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2464030A (en) * 1946-05-31 1949-03-08 Oscar L Engstrom Liquid measuring dispenser
FR1064626A (en) * 1951-02-20 1954-05-17 Bahrmann & Cie Piston pouring cap
US4015755A (en) * 1975-12-12 1977-04-05 Edward Lerner Electromagnetically actuatable metering valve for successive delivery of measured volumes of fluid from a fluid reservoir
DK146933C (en) * 1978-11-01 1984-07-30 Sterwin Ag PORTION PUMPS
EP0011487B1 (en) * 1978-11-21 1982-07-21 Sterwin Ag. Apparatus for dispensing viscous substances such as pastes or creams
WO1980002546A1 (en) * 1979-05-11 1980-11-27 M Quinsee Improved dispensing valve
US4854721A (en) * 1986-03-25 1989-08-08 Equip-Mark, Inc. Blending and dispensing beverages
DE3622777A1 (en) * 1986-07-07 1988-02-04 Bosch Siemens Hausgeraete ARRANGEMENT FOR PREPARING AND DOSING DISPENSING OF LIQUIDS
JPS6382994A (en) * 1986-09-19 1988-04-13 トキコ株式会社 Lubrication control system
EP0418927B1 (en) * 1989-09-22 1993-11-24 BOSCH-SIEMENS HAUSGERÄTE GmbH Dispensing device for metered quantities of liquids

Also Published As

Publication number Publication date
JPH03212398A (en) 1991-09-17
EP0418927A1 (en) 1991-03-27
CA2025905C (en) 1996-10-01
ATE97636T1 (en) 1993-12-15
AU644100B2 (en) 1993-12-02
DE59003590D1 (en) 1994-01-05
DK0418927T3 (en) 1994-04-25
AU6317690A (en) 1991-03-28
AU6316890A (en) 1991-03-28
JP2610604B2 (en) 1997-05-14
DD297616A5 (en) 1992-01-16
CA2025905A1 (en) 1991-03-23
AU641180B2 (en) 1993-09-16
KR910006141A (en) 1991-04-27
ES2046639T3 (en) 1994-02-01

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