EP0981291B1 - Metering device for a household dishwasher - Google Patents

Metering device for a household dishwasher Download PDF

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Publication number
EP0981291B1
EP0981291B1 EP98934744A EP98934744A EP0981291B1 EP 0981291 B1 EP0981291 B1 EP 0981291B1 EP 98934744 A EP98934744 A EP 98934744A EP 98934744 A EP98934744 A EP 98934744A EP 0981291 B1 EP0981291 B1 EP 0981291B1
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EP
European Patent Office
Prior art keywords
dosing
chamber
rinse agent
volume
storage unit
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Expired - Lifetime
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EP98934744A
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German (de)
French (fr)
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EP0981291A2 (en
Inventor
Harald Schrott
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Aweco Appliance Systems GmbH and Co KG
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Aweco Kunststofftechnik Geratebau & Co KG GmbH
AWECO Kunststofftechnik Geraetebau GmbH and Co KG
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/44Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/0018Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0055Metering or indication of used products, e.g. type or quantity of detergent, rinse aid or salt; for measuring or controlling the product concentration

Definitions

  • the invention relates to a metering device according to the generic concept of Claim 1.
  • a small dosing chamber is provided, which too Is called the scoop because it pivots fills the device by 90 ° from a larger storage vessel.
  • the dosing device is for this purpose in the Loading door of the machine installed, which means that when you open the door, d. H. after the program, the Dosing chamber is filled.
  • One valve pin one Closes the outlet opening of the dosing chamber desired moment from an actuator, e.g. B. one Solenoid, raised so that the entire contents of the Dosing chamber can leak into the wash cabinet.
  • the volume of the Dosing chamber and thus the dosing amount is with these Devices determined by means of a sinker, the protrude more or less into the dosing chamber leaves.
  • US-A-28 67 224 is one below the Dispensing device arranged at the bottom of the wash cabinet described in which a multiple dosing of a certain Dosing amount using a pump device using a bimetal and a heater for deforming the Bimetal is made possible.
  • the invention has for its object a variable Propose dosing device with little effort is realized and at the same time the risk of emptying the Avoids storage container.
  • This task is based on a device of achieved in the introduction that a Intermediate chamber is provided, which is a line connection to the dosing chamber and a refill connection to the Has storage container, the volume of Buffer several times the dosing chamber volume having.
  • variable dosing device the possibility of multiple filling and the emptying of the dosing chamber is less complex and nevertheless given variable dosing device.
  • the desire to provide a variable metering device is Based on the knowledge that in the cleaning or Intermediate rinse a part of the dirt load in the drops gets stuck on the dishes and so from a fleet to the next is transmitted. This can counteract this be that at the end of this individual under the Complete program successive program sections a small dose of rinse aid is added, so that the washing liquid and the food residues contained therein run better and are therefore pumped out more completely can.
  • the method can be developed in two variants, whereby the practical use of that in the dishwasher control technology used depends. For one thing suggested that the rinse aid administered within of a certain program section is entered a selectable number of equally large quanta, dosed in consecutive dosing processes become.
  • the intermediate store is expediently used as a scoop chamber trained, as known per se, by pivoting the Dosing device is filled, for. B. by opening the Loading door if the dosing device in this is installed.
  • a multiple use of a dosing device is that has an unchangeable rinse aid dosing chamber possible that the volume of the buffer memory can be changed is.
  • Such a device can be used to Rinse aid only in the last rinse cycle admit, although the dosage in individual quanta done, but the total amount ultimately by the volume of the Cache is determined.
  • the timer gives z. B. always 6 Control impulses. But it may be that with appropriate The buffer is set after the third Control pulse is empty and the metering valve is still then works three times empty.
  • Combined Dosing devices are forced to manufacture and rationally to assemble, originated and in almost all marketable Household dishwashers included. They include one Device for entering a detergent, the most is used in powder form, and a device for Entering a liquid rinse aid into the wash cabinet, it is already known to use both devices with the to actuate the same actuator, in particular with a Solenoid or a bimetallic actuator. It is by the Type of electrical signal or otherwise distinguished whether the detergent dispenser or the Rinse aid dispenser to be operated.
  • the well-known combined dosing devices are designed that first the detergent dispenser and then the Rinse aid dispenser is operated. This corresponds to the natural program flow and is one important prerequisite for by the invention proposed conversion of the known disposable into Multiple dosing devices. If the detergent dispenser first Once triggered, the trigger is repeated Rinse aid dispenser is no longer in the way.
  • a storage container 1 which has a filling opening Cover 2 has a buffer 3 is attached, the is designed as a scoop chamber.
  • the partition has one at the top Opening 4. So if the whole device in this Position is installed in a closed loading door, is pivoted to the left when the door is opened, fills the buffer 3.
  • the buffer is connected via a line 5 to a Dosing chamber 6 connected, in which a valve tappet 7 after a control pulse from its rest position shown moved up.
  • the contents of the dosing chamber run out.
  • Required ventilation lines are the Not shown for the sake of simplicity.
  • the volume of the dosing chamber 7 can be changed by entering the dosing chamber Connects cylinder in which an actuating piston 8 is movable is.
  • the volume of the buffer can also 3 be adjustable by means of an immersion body 9, which depending on Setting more or less far into the buffer protrudes.

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  • Washing And Drying Of Tableware (AREA)

Abstract

The invention relates to a method for operating a household dishwasher, said dishwasher being equipped with a programme selection device and a combined device for adding a detergent and a clear rinse agent to the washing area. The aim of the invention is to improve the cleaning effect. To this end, the clear rinse agent is added not only once during the last wash cycle, but on several occasions at various times during the wash programme. Each of these processes is characterised by an adjustable number of equal quantities or a non-adjustable number of variable quantities of a clear rinse agent. A metering device for carrying out the inventive method comprises a reservoir (1), a temporary storage unit (3) and a metering chamber (6). Both the temporary storage unit (3) and the metering chamber (6) can be configured with an adjustable volume.

Description

Die Erfindung betrifft eine Dosiervorrichtung nach dem Gattungsbegriff des Patentanspruchs 1.The invention relates to a metering device according to the generic concept of Claim 1.

Bei Haushalts-Geschirrspülmaschinen ist es seit vielen Jahren bekannt, während des Programmablaufs einmal ein Reinigungsmittel zuzugeben und am Ende des Programmablaufs im Klarspül-Programmabschnitt ein Klarspülmittel zuzugeben, damit das Spülwasser tropffrei vom Geschirr abläuft, keine Kalkflecken zurück bleiben und das Geschirr schön glänzt.It has been with household dishwashers for many years known once during program execution Add detergent and at the end of the program in Adding a rinse aid to the rinse aid program section so that the rinsing water runs off the dishes without dripping, none Limescale remains and the dishes shine beautifully.

Die einmalige Klarspülmittelzugabe hat bei den meisten Herstellern zur Entwicklung eines Typs einer Klarspülmittel-Dosiervorrichtung geführt, der wie folgt zu beschreiben ist. Es ist eine kleine Dosierkammer vorgesehen, die auch Schöpfkammer genannt wird, weil sie sich durch Verschwenken der Vorrichtung um 90° aus einem größeren Vorratsgefäß füllt. Die Dosiervorrichtung ist zu diesem Zweck in der Beschickungstür der Maschine eingebaut, was zur Folge hat, daß beim Öffnen der Tür, d. h. nach dem Programmablauf, die Dosierkammer gefüllt wird. Ein Ventilstift, der eine Auslauföffnung der Dosierkammer verschließt, wird im gewünschten Augenblick von einem Aktuator, z. B. einem Hubmagnet, angehoben, so daß der gesamte Inhalt der Dosierkammer in den Spülraum auslaufen kann. Das Volumen der Dosierkammer und damit die Dosiermenge wird bei diesen Vorrichtungen mittels eines Verdrängungskörpers bestimmt, den man mehr oder weniger weit in die Dosierkammer hineinragen läßt.Most have the one-time rinse aid addition Manufacturers developing a type of rinse aid dispenser led, which is to be described as follows. A small dosing chamber is provided, which too Is called the scoop because it pivots fills the device by 90 ° from a larger storage vessel. The dosing device is for this purpose in the Loading door of the machine installed, which means that when you open the door, d. H. after the program, the Dosing chamber is filled. One valve pin, one Closes the outlet opening of the dosing chamber desired moment from an actuator, e.g. B. one Solenoid, raised so that the entire contents of the Dosing chamber can leak into the wash cabinet. The volume of the Dosing chamber and thus the dosing amount is with these Devices determined by means of a sinker, the protrude more or less into the dosing chamber leaves.

Mit der Druckschrift DE-U-75 03 703 wiederum wurde eine variable Dosierung vorgeschlagen, bei der eine Dosierkammer mit Hilfe eines verschiebbaren Dosierkolbens ein unterschiedliches Volumen einnehmen kann. Um Dichtprobleme zwischen der Dosierkammer und dem Vorratsbehälter auszuschalten, wurde hier eine sogenannte Zwischenspeicherkammer als Auslaßkammer vorgesehen, in die sich die Dosierkammer beim Schließen der Spülmaschinentür entleert. Bei dieser Vorrichtung ist nur eine einmalige Füllung der Dosierkammer möglich, wobei die Variation der Dosiermenge durch aufwendige Verstellung des Dosierkolbens erzielt wird.With the document DE-U-75 03 703, in turn, a variable dosing suggested using a dosing chamber with the help of a sliding dosing piston can occupy different volumes. To seal problems between the dosing chamber and the storage container to switch off was a so-called Intermediate storage chamber provided as an outlet chamber into which the dosing chamber when the dishwasher door is closed emptied. This device is only one time Filling the dosing chamber possible, the variation of the Dosing quantity through complex adjustment of the dosing piston is achieved.

In der Druckschrift US-A-28 67 224 ist eine unterhalb des Bodens des Spülraums angeordnete Dosiervorrichtung beschrieben, bei der eine Mehrfachdosierung einer bestimmten Dosiermenge mit Hilfe einer Pumpvorrichtung unter Verwendung eines Bimetalls und einer Heizvorrichtung zur Verformung des Bimetalls ermöglicht wird.In US-A-28 67 224 is one below the Dispensing device arranged at the bottom of the wash cabinet described in which a multiple dosing of a certain Dosing amount using a pump device using a bimetal and a heater for deforming the Bimetal is made possible.

Mit der US-A-30 13 568 ist eine Vorrichtung bekannt geworden, bei der eine Dosierkammer je nach gewünschter Dosiermenge mehrfach aufzufüllen ist und in den Spülmaschineninnenraum entleert werden kann. Durch den direkten Kontakt des Vorratsbehälters mit der Dosierkammer besteht bei dieser Vorrichtung die Gefahr, daß sich der Vorratsbehälter im Falle eines undichten Dosierventils vollständig in die Spülmaschine entleert. With the US-A-30 13 568 a device has become known where one dosing chamber depending on the desired dosing quantity is to be refilled several times and into the interior of the dishwasher can be emptied. Through the direct contact of the Storage container with the dosing chamber exists in this Device the risk that the reservoir in the case a leaking dosing valve completely into the dishwasher emptied.

Der Erfindung liegt die Aufgabe zugrunde, eine variable Dosiervorrichtung vorzuschlagen, die mit wenig Aufwand zu realisieren ist und zugleich die Gefahr der Entleerung des Vorratbehälters vermeidet.The invention has for its object a variable Propose dosing device with little effort is realized and at the same time the risk of emptying the Avoids storage container.

Diese Aufgabe wird ausgehend von einer Vorrichtung der einleitend genannten Art dadurch erreicht, daß eine Zwichenkammer vorgesehen wird, die eine Leitungsverbindung zur Dosierkammer und eine Nachfüllverbindung zum Vorratsbehälter aufweist, wobei das Volumen des Zwischenspeichers ein Mehrfaches des Dosierkammervolumens aufweist.This task is based on a device of achieved in the introduction that a Intermediate chamber is provided, which is a line connection to the dosing chamber and a refill connection to the Has storage container, the volume of Buffer several times the dosing chamber volume having.

Durch die Zwischenkammer wird die Dosierkammer von dem Vorratsbehälter getrennt, so daß im Falle eines defekten Dosierventils ein Auslaufen des Vorratsbehälters verhindert ist. Große Mengen von Klarspülmittel in einer Spülmaschine haben die schwerwiegende Folge, daß Schaum in unkontrollierten Mengen entsteht, der aus der Maschine austritt und Schäden verursacht. Das Volumen des Zwischenspeichers läßt nur eine erheblich kleinere Menge an Klarspülmittel zu, so daß diese Gefahr vermieden wird.Through the intermediate chamber, the dosing chamber of the Storage container separated so that in the event of a defect Dosing valve prevents the reservoir from leaking is. Large amounts of rinse aid in a dishwasher have the serious consequence that foam in uncontrolled quantities arises from the machine escapes and causes damage. The volume of the Buffer only leaves a significantly smaller amount Rinse aid too, so that this danger is avoided.

Zugleich ist durch die Möglichkeit der mehrfachen Füllung und der Entleerung der Dosierkammer eine wenig aufwendige und dennoch variable Dosiervorrichtung gegeben. Dem Bestreben, eine variable Dosiervorrichtung vorzusehen, liegt die Erkenntnis zugrunde, daß in den Reinigungs- bzw. Zwischenspülgängen ein Teil der Schmutzfracht in den Tropfen am Geschirr hängen bleibt und so von einer Flotte auf die nächste übertragen wird. Dem kann dadurch entgegengewirkt werden, daß am Ende dieser einzelnen im Rahmen des Gesamtprogramms aufeinanderfolgenden Programmabschnitte jeweils eine kleine Dosis Klarspülmittel zugegeben wird, so daß die Spülflüssigkeit und die darin enthaltenen Speisereste besser ablaufen und dadurch vollständiger abgepumpt werden können.At the same time, the possibility of multiple filling and the emptying of the dosing chamber is less complex and nevertheless given variable dosing device. The desire to provide a variable metering device is Based on the knowledge that in the cleaning or Intermediate rinse a part of the dirt load in the drops gets stuck on the dishes and so from a fleet to the next is transmitted. This can counteract this be that at the end of this individual under the Complete program successive program sections a small dose of rinse aid is added, so that the washing liquid and the food residues contained therein run better and are therefore pumped out more completely can.

Das Verfahren läßt sich in zwei Varianten weiterbilden, wobei der praktische Einsatz von der bei der Spülmaschine verwendeten Steuertechnologie abhängt. Zum einen wird vorgeschlagen, daß die Klarspülmittelgabe, die innerhalb eines bestimmten Programmabschnitts eingegeben wird, sich aus einer wählbaren Anzahl gleich großer Quanten zusammensetzt, die in einzelnen aufeinanderfolgenden Dosiervorgängen dosiert werden.The method can be developed in two variants, whereby the practical use of that in the dishwasher control technology used depends. For one thing suggested that the rinse aid administered within of a certain program section is entered a selectable number of equally large quanta, dosed in consecutive dosing processes become.

Eine hinsichtlich ihres Volumens unveränderliche Dosierkammer, deren Ventilanordnung bei Betätigung den Zulauf schließt und den Auslauf öffnet, läuft bei jedem Dosiervorgang leer und liefert so jedesmal das gleiche Quantum. Eine solche Mehrmaldosiervorrichtung eignet sich für die modernen elektronisch gesteuerten Geschirrspülmaschinen, bei denen es leicht möglich ist, die Zahl der Steuerimpulse bei den einzelnen Programmabschnitten beliebig festzulegen und dabei möglicherweise auch andere Parameter, wie Beladungsart und Beladungsmenge der Spülmaschine, Wasserhärte usw. zu berücksichtigen. Für die Vorgaben können geeignete Sensoren vorgesehen sein.One unchangeable in volume Dosing chamber, the valve arrangement of the inlet when actuated closes and opens the spout, runs with everyone Dosing process empty and delivers the same every time Quantum. Such a multiple dosing device is suitable for the modern electronically controlled dishwashers, where it is easily possible the number of control pulses to be defined as required for the individual program sections and possibly also other parameters such as Load type and amount of the dishwasher, water hardness etc. to take into account. Suitable for the specifications Sensors may be provided.

Bei Geschirrspülmaschinen mit mechanischen Schaltwerken (Timern) ist es auch möglich, innerhalb der einzelnen Programmabschnitte mehrere aufeinanderfolgende Steuerimpulse zur Verfügung zu stellen. Die Anzahl dieser Steuerimpulse ist aber nicht variabel. Deshalb wird vorgeschlagen, daß die Klarspülmittelgabe, die innerhalb eines bestimmten Programmabschnitts eingegeben wird, sich aus einer unveränderlichen Anzahl einstellbar großer Quanten zusammensetzt, die in einzelnen aufeinanderfolgenden Dosiervorgängen dosiert werden. Die Verfahrensvariante erfordert also eine variable Dosierkammer. For dishwashers with mechanical switching mechanisms (Timers) it is also possible within the individual Program sections several successive control pulses to provide. The number of these control pulses is but not variable. It is therefore proposed that the Use of rinse aid within a certain Program section is entered from a unchangeable number of adjustable large quanta composed in consecutive individual Dosing processes are dosed. The process variant therefore requires a variable dosing chamber.

Zweckmäßigerweise wird der Zwischenspeicher als Schöpfkammer ausgebildet, die wie an sich bekannt, durch Schwenken der Dosiervorrichtung gefüllt wird, z. B. durch Öffnen der Beschickungstür, wenn die Dosiervorrichtung in diese eingebaut ist.The intermediate store is expediently used as a scoop chamber trained, as known per se, by pivoting the Dosing device is filled, for. B. by opening the Loading door if the dosing device in this is installed.

Da die Rationalisierung bei der Herstellung große Stückzahlen verlangt, kommt der Einsatzmöglichkeit eines kombinierten Dosiergeräts bei den verschiedensten Geschirrspülmaschinen große Bedeutung zu. Wie erwähnt genügt für eine Geschirrspülmaschine mit elektronischer Steuerung eine einfache hinsichtlich ihres Volumens unveränderliche Dosierkammer. Um dasselbe Dosiergerät auch bei Maschinen mit mechanischem Timer einsetzen zu können, wird vorgeschlagen, daß die Dosierkammer ein veränderbares Volumen hat.Because the rationalization in manufacturing large quantities demands, the use of a combined comes Dosing devices in a wide variety of dishwashers great importance too. As mentioned, is enough for one Dishwasher with electronic control one simple in volume unchangeable Dosing chamber. To use the same dosing device on machines mechanical timer is proposed, it is proposed that the dosing chamber has a variable volume.

Schließlich ist ein Mehrfacheinsatz eines Dosiergeräts, das eine unveränderliche Klarspülmittel-Dosierkammer hat, dadurch möglich, daß das Volumen des Zwischenspeichers veränderbar ist. Ein solches Gerät kann dazu verwendet werden, Klarspülmittel nur beim letzten, dem sogenannten Klarspülgang zuzugeben, wobei die Dosierung zwar auch in einzelnen Quanten erfolgt, aber die Gesamtmenge letztlich durch das Volumen des Zwischenspeichers bestimmt wird. Der Timer gibt z. B. immer 6 Steuerimpulse ab. Es kann aber sein, daß bei entsprechender Einstellung der Zwischenspeicher schon nach dem dritten Steuerimpuls leer ist und das Dosierventil anschließend noch dreimal leer arbeitet.Finally, a multiple use of a dosing device is that has an unchangeable rinse aid dosing chamber possible that the volume of the buffer memory can be changed is. Such a device can be used to Rinse aid only in the last rinse cycle admit, although the dosage in individual quanta done, but the total amount ultimately by the volume of the Cache is determined. The timer gives z. B. always 6 Control impulses. But it may be that with appropriate The buffer is set after the third Control pulse is empty and the metering valve is still then works three times empty.

Die Erfindung ist unter der Vorgabe zu sehen, daß eine Mehrmaldosiervorrichtung der vorstehend beschriebenen Art in ein kombiniertes Dosiergerät integriert ist. Kombinierte Dosiergeräte sind unter dem Zwang, rationell zu fertigen und zu montieren, entstanden und in fast allen marktgängigen Haushalts-Geschirrspülmaschinen enthalten. Sie umfassen eine Vorrichtung zum Eingeben eines Reinigungsmittels, das meist in Pulverform zur Anwendung kommt, und eine Vorrichtung zum Eingeben eines flüssigen Klarspülmittels in den Spülraum, wobei es schon bekannt ist, beide Vorrichtungen mit dem gleichen Aktuator zu betätigen, insbesondere mit einem Hubmagnet oder einem Bimetall-Betätiger. Dabei wird durch die Art des elektrischen Signals oder auf andere Weise unterschieden, ob der Reinigungsmittelgeber oder die Klarspülmittel-Dosiervorrichtung betätigt werden soll.The invention can be seen under the stipulation that a Multiple dosing device of the type described above in a combined dosing device is integrated. Combined Dosing devices are forced to manufacture and rationally to assemble, originated and in almost all marketable Household dishwashers included. They include one Device for entering a detergent, the most is used in powder form, and a device for Entering a liquid rinse aid into the wash cabinet, it is already known to use both devices with the to actuate the same actuator, in particular with a Solenoid or a bimetallic actuator. It is by the Type of electrical signal or otherwise distinguished whether the detergent dispenser or the Rinse aid dispenser to be operated.

Die bekannten kombinierten Dosiergeräte sind so konzipiert, daß zuerst der Reinigungsmittelgeber und dann die Klarspülmittel-Dosiervorrichtung betätigt wird. Dies entspricht dem natürlichen Programmablauf und ist eine wichtige Voraussetzung für die durch die Erfindung vorgeschlagene Umwandlung der bekannten Einmaldosiergeräte in Mehrmaldosiergeräte. Wenn der Reinigungsmittelgeber erst einmal ausgelöst ist, steht einer mehrmaligen Auslösung der Klarspülmittel-Dosiervorrichtung nichts mehr im Wege.The well-known combined dosing devices are designed that first the detergent dispenser and then the Rinse aid dispenser is operated. This corresponds to the natural program flow and is one important prerequisite for by the invention proposed conversion of the known disposable into Multiple dosing devices. If the detergent dispenser first Once triggered, the trigger is repeated Rinse aid dispenser is no longer in the way.

Ein Ausführungsbeispiel der Erfindung, das auch die möglichen Varianten zeigt, wird nachstehend erläutert. Diese stellt eine schematische Schnittzeichnung einer Klarspülmittel-Mehrmaldosiervorrichtung dar.An embodiment of the invention that also the possible Shows variants is explained below. This poses is a schematic sectional drawing of a rinse aid multiple dosing device represents.

An einem Vorratsbehälter 1, der eine Einfüllöffnung mit Deckel 2 aufweist, ist ein Zwischenspeicher 3 angebaut, der als Schöpfkammer ausgebildet ist. Die Trennwand hat oben eine Öffnung 4. Wenn also die ganze Vorrichtung, die in dieser Stellung in eine geschlossene Beschickungstür eingebaut ist, beim Öffnen der Tür um 90° nach links geschwenkt wird, füllt sich der Zwischenspeicher 3. On a storage container 1, which has a filling opening Cover 2 has a buffer 3 is attached, the is designed as a scoop chamber. The partition has one at the top Opening 4. So if the whole device in this Position is installed in a closed loading door, is pivoted to the left when the door is opened, fills the buffer 3.

Der Zwischenspeicher ist über eine Leitung 5 mit einer Dosierkammer 6 verbunden, in welcher ein Ventilstößel 7 sich bei einem Steuerimpuls aus seiner dargestellten Ruhelage nach oben bewegt. Dabei läuft der Inhalt der Dosierkammer aus. Erforderliche Be- und Entlüftungsleitungen sind der Einfachheit halber nicht dargestellt.The buffer is connected via a line 5 to a Dosing chamber 6 connected, in which a valve tappet 7 after a control pulse from its rest position shown moved up. The contents of the dosing chamber run out. Required ventilation lines are the Not shown for the sake of simplicity.

Zusätzlich oder alternativ kann das Volumen der Dosierkammer 7 veränderbar sein indem sich an die Dosierkammer ein Zylinder anschließt, in welchem ein Stellkolben 8 bewegbar ist. Andererseits kann auch das Volumen des Zwischenspeichers 3 mittels eines Tauchkörpers 9 einstellbar sein, der je nach Einstellung mehr oder weniger weit in den Zwischenspeicher hineinragt.Additionally or alternatively, the volume of the dosing chamber 7 can be changed by entering the dosing chamber Connects cylinder in which an actuating piston 8 is movable is. On the other hand, the volume of the buffer can also 3 be adjustable by means of an immersion body 9, which depending on Setting more or less far into the buffer protrudes.

Claims (5)

  1. Dispensing device for a domestic dishwasher which is equipped with a programme selector and a combined device for adding a detergent and a rinse agent to the washing area, the device for adding a rinse agent comprising a reservoir (1) and a dispensing chamber (6) and an outlet opening of the dispensing chamber (6) from the dispensing device being provided, characterised in that a temporary storage unit (3) with a line connection (5) to the dispensing chamber (6) and a refill connection (4) to the reservoir (1) is provided, the volume of the temporary storage unit (3) being a multiple of the volume of the dispensing chamber.
  2. Dispensing device according to claim 1, characterised in that the temporary storage unit (3) is designed as a dipper chamber, which is filled by swivelling the dispensing device.
  3. Dispensing device according to one of the preceding claims, characterised in that the volume of the dispensing chamber (6) can be changed.
  4. Dispensing device according to one of the preceding claims, characterised in that the volume of the temporary storage unit (3) can be changed.
  5. Combined dispenser which comprises a device for adding a detergent and a device for adding a rinse agent which are both activated by the same actuator, characterised in that a reusable dispensing device according to one of the preceding claims is provided for the rinse agent.
EP98934744A 1997-05-16 1998-05-16 Metering device for a household dishwasher Expired - Lifetime EP0981291B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19720820 1997-05-16
DE19720820A DE19720820A1 (en) 1997-05-16 1997-05-16 Method and dosing device for operating a household dishwasher
PCT/DE1998/001371 WO1998051205A2 (en) 1997-05-16 1998-05-16 Method and metering device for operating a household dishwasher

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EP0981291A2 EP0981291A2 (en) 2000-03-01
EP0981291B1 true EP0981291B1 (en) 2001-08-22

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EP98934744A Expired - Lifetime EP0981291B1 (en) 1997-05-16 1998-05-16 Metering device for a household dishwasher

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US (1) US6338351B1 (en)
EP (1) EP0981291B1 (en)
DE (2) DE19720820A1 (en)
WO (1) WO1998051205A2 (en)

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Also Published As

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US6338351B1 (en) 2002-01-15
WO1998051205A2 (en) 1998-11-19
DE19720820A1 (en) 1998-11-19
DE59801259D1 (en) 2001-09-27
WO1998051205A3 (en) 1999-02-04
EP0981291A2 (en) 2000-03-01

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