EP1634526A2 - Dishwasher having a spray arm assembly - Google Patents

Dishwasher having a spray arm assembly Download PDF

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Publication number
EP1634526A2
EP1634526A2 EP05012831A EP05012831A EP1634526A2 EP 1634526 A2 EP1634526 A2 EP 1634526A2 EP 05012831 A EP05012831 A EP 05012831A EP 05012831 A EP05012831 A EP 05012831A EP 1634526 A2 EP1634526 A2 EP 1634526A2
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EP
European Patent Office
Prior art keywords
arm
nozzles
spray arm
spray
dishwasher according
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
EP05012831A
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German (de)
French (fr)
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EP1634526A3 (en
EP1634526B1 (en
Inventor
Friedrich Mack
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Electrolux Home Products Corp NV
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Electrolux Home Products Corp NV
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Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP12183651A priority Critical patent/EP2545838A1/en
Priority to PL05012831T priority patent/PL1634526T3/en
Publication of EP1634526A2 publication Critical patent/EP1634526A2/en
Publication of EP1634526A3 publication Critical patent/EP1634526A3/en
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Publication of EP1634526B1 publication Critical patent/EP1634526B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices
    • A47L15/23—Rotary spraying devices moved by means of the sprays
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
    • A47L15/22—Rotary spraying devices

Definitions

  • the invention relates to a dishwasher with a rinsing container with a rotating spray device which has a support arm rotating about a first substantially vertical axis and a distance from the first perpendicular axis on the support arm about a second, also substantially vertical axis rotating and at least one arm having spray arm which sprays cleaning liquid onto the dishes to be cleaned via nozzles and is drivable together with the support arm by the recoil of the pressurized cleaning liquid.
  • EP 1 050 263 A2 discloses such a dishwasher.
  • a spray device is arranged with at least one, about a substantially vertical axis rotatable spray arm. This in turn is rotatably arranged about a further, also substantially vertical axis. This axis passes essentially through the center of the dishwasher.
  • the spray arm undergoes an epicycloidal movement when pressurized water first flows through the axis in the center of the dishwasher through a support arm rotatably supporting the spray arm and then via a turbine transmission mounted on the axis of the spray arm in the support arm due to the recoil of the water Spray arm in put a rotary motion.
  • the spray arm extends from its axis of rotation over a radial length which is substantially equal to a quarter of the shortest inner side of the washing container.
  • the distance of the two axes of rotation from one another essentially corresponds to the radial length of the spray arm.
  • the support arm preferably extends in this dishwasher substantially between the axis of rotation of the spray arm and the axis of rotation of the support arm.
  • a pressurized water distribution circuit is provided which operates at a lower or higher pressure depending on the intensity provided in accordance with the rinse program.
  • this object is achieved in a dishwasher of the type mentioned above in that the nozzles are arranged substantially at the outer end of the at least one partial arm.
  • the invention provides a dishwasher in which all areas of the surfaces of the items to be washed are achieved by the cleaning liquid, so that a good cleaning with high cleaning intensity is achieved.
  • An advantage is a dishwasher in which the nozzles too 90% are arranged in the outer third of the at least one partial arm.
  • openings of the nozzles have at least one directional component in the tangential direction of the spray arm, based on the circle plane defined by the latter during its movement about the axis of rotation.
  • the spray arm comprises two with respect to its axis of rotation symmetrically opposing partial arms, on the outer peripheries of the nozzles are arranged distributed. By the two arms a complete spraying of the items to be cleaned is guaranteed.
  • the nozzles are each oriented in different directions, so that the cleaning liquid or the water impinges on the dishes from different angles.
  • the nozzles can be aligned in the vertical direction, in or against the drive direction, inwards or outwards or obliquely to the longitudinal axis of the arms of the spray arm.
  • at least one of the nozzles is arranged at least partially inclined with respect to the vertical axis of the spray arm or lying in the plane of rotation of the spray arm.
  • the support arm extends substantially over a length which is determined by the distance between the two axes of rotation.
  • the short length of the support arm pressure losses of the water, which would be lost by the drive and the filling of a double as long arm, saved. This is more cleaning water within the water cycle for cleaning the dishes available, so that in particular a sufficiently high pressure to generate the rotational movement of the spray arm is maintained.
  • the spray arm has approximately the length of the support arm, which may be about one-quarter of the shorter side length of the washing container or even shorter. Depending on the orientation of the spray nozzles, the length of the spray arm but also be even lower.
  • a very compact spraying device is provided, which ensures optimum wetting of the ware due to the epicycloidal movement of the spray arm.
  • the spraying device comprises in the ceiling and / or in the bottom region of the washing compartment a rotary device consisting in each case of a support arm and a spray arm, which is connected to a circulating system for the cleaning fluid.
  • a spray device 1 integrated in a circuit for circulating a cleaning liquid is mounted either under the ceiling or above the bottom of a washing container 2 in a dishwasher.
  • the spraying device 1 comprises a support arm 4, which is rotatable about a rotation axis 3 arranged essentially in the middle of the washing container 2 and whose length is less than a quarter of the smaller side length of the washing container 2.
  • a spray arm 6 is rotatably arranged about a further axis of rotation 5.
  • cleaning liquid is supplied under pressure to the support arm 4 via a first rotary leadthrough in the area of the rotation axis 3, which continues to flow into the spray arm 6 through the interior of the support arm 4 via a second rotary leadthrough in the area of the rotation axis 5.
  • the cleaning liquid Due to the pressure under which the cleaning liquid stands, it is sprayed out of nozzles 7 at the outer ends of the spray arm 6. Since at least some of the nozzles 7 have an opening from which the cleaning liquid flows out in such a way that it has a directional component in the tangential direction with respect to the circular plane formed by the spray arm 6, the spray arm 6 rotates in a circular motion about the axis of rotation 5. Simultaneously is due to the recoil and the support arm 4 is set in motion, so that this is a circular movement corresponding to a circular line A, which reflects the movement of the outermost radial point of the support arm 4.
  • the spray arm 6 executes an epicycloidal movement on a line of movement B, which reflects the movement of the outer periphery of the spray arm 6.
  • the dishes in the washing container 2 is sprayed under a variety of different angular positions and is thereby completely wetted.
  • the spray arm 6 has two with respect to the axis of rotation 5 symmetrical part arms 61 and 62, at the outer ends of each of the spray nozzles 7 are arranged.
  • the spray nozzles 7 (FIGS. 2, 3) preferably have different opening angles with respect to the plane of the spray arm 6 and with respect to the axis of rotation 5, so that the cleaning liquid flows out of them in different directions C, D, E, F and in every position of the spray arm 6 different areas of the dishes within the washing container 2 are sprayed.

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  • Washing And Drying Of Tableware (AREA)

Abstract

The central arm (4) is attached with one end to a hollow central shaft (3) serving as a water and rinsing fluid supply duct and positioned either at the bottom or at the ceiling of the dishwasher housing (2). A second arm (6) is swivel mounted (5) with its center to the outer end of the central arm (4) and provided with several nozzles (7) at both ends. When the fluid is released a thrust is created moving both arms (4, 6) in circles around their individual axles (3, 5).

Description

Die Erfindung bezieht sich auf eine Geschirrspülmaschine mit einem Spülbehälter mit einer rotierenden Sprühvorrichtung, die einen sich um eine erste im wesentlichen senkrechte Achse drehenden Tragarm und einen sich in einem Abstand zu der ersten senkrechten Achse auf dem Tragarm um eine zweite, ebenfalls im wesentlichen senkrechte Achse drehenden und wenigstens einen Teilarm aufweisenden Sprüharm umfasst, der über Düsen Reinigungsflüssigkeit auf zu reinigendes Geschirr sprüht und zusammen mit dem Tragarm durch den Rückstoß der unter Druck stehenden Reinigungsflüssigkeit antreibbar ist.The invention relates to a dishwasher with a rinsing container with a rotating spray device which has a support arm rotating about a first substantially vertical axis and a distance from the first perpendicular axis on the support arm about a second, also substantially vertical axis rotating and at least one arm having spray arm which sprays cleaning liquid onto the dishes to be cleaned via nozzles and is drivable together with the support arm by the recoil of the pressurized cleaning liquid.

Aus der EP 1 050 263 A2 ist eine derartige Geschirrspülmaschine bekannt. In einem im wesentlichen als Parallelepided ausgebildeten Geschirrbehälter mit einem im wesentlichen rechteckigen Grundriss ist eine Sprühvorrichtung mit wenigstens einem, um eine im wesentlichen senkrechte Achse drehbaren Sprüharm angeordnet. Dieser ist seinerseits drehbar um eine weitere, ebenfalls im wesentlichen senkrechte Achse angeordnet. Diese Achse verläuft im wesentlichen durch den Mittelpunkt der Geschirrspülmaschine.EP 1 050 263 A2 discloses such a dishwasher. In a substantially parallelepided as a crockery container having a substantially rectangular plan a spray device is arranged with at least one, about a substantially vertical axis rotatable spray arm. This in turn is rotatably arranged about a further, also substantially vertical axis. This axis passes essentially through the center of the dishwasher.

Der Sprüharm vollzieht eine epizykloidale Bewegung, wenn unter Druck stehendes Wasser zunächst durch die Achse in der Mitte der Geschirrspülmaschine durch einen den Sprüharm drehbar tragenden Tragarm strömt und anschließend über ein an der Achse des Sprüharms in dem Tragarm angebrachtes turbinenförmiges Getriebe infolge des Rückstoßes des Wassers den Sprüharm in eine Drehbewegung versetzt.The spray arm undergoes an epicycloidal movement when pressurized water first flows through the axis in the center of the dishwasher through a support arm rotatably supporting the spray arm and then via a turbine transmission mounted on the axis of the spray arm in the support arm due to the recoil of the water Spray arm in put a rotary motion.

Der Sprüharm erstreckt sich von seiner Drehachse aus über eine radiale Länge, die im wesentlichen einem Viertel der kürzesten inneren Seite des Spülbehälters entspricht. Dabei entspricht der Abstand der beiden Rotationsachsen von einander im wesentlichen der radialen Länge des Sprüharms.The spray arm extends from its axis of rotation over a radial length which is substantially equal to a quarter of the shortest inner side of the washing container. In this case, the distance of the two axes of rotation from one another essentially corresponds to the radial length of the spray arm.

Der Tragarm erstreckt sich bei dieser Spülmaschine vorzugsweise im wesentlichen zwischen der Drehachse des Sprüharms und der Drehachse des Tragarms. Es ist vorzugsweise ein Verteilkreis für das unter Druck stehende Wasser vorgesehen, der je nach der gemäß dem Spülprogramm vorgesehenen Intensität mit einem niedrigeren oder einem höheren Druck arbeitet.The support arm preferably extends in this dishwasher substantially between the axis of rotation of the spray arm and the axis of rotation of the support arm. Preferably, a pressurized water distribution circuit is provided which operates at a lower or higher pressure depending on the intensity provided in accordance with the rinse program.

Es ist die Aufgabe der Erfindung, die bekannte Geschirrspülmaschine derart weiterzubilden, dass noch bessere Reinigungsergebnisse erzielt werden.It is the object of the invention to develop the known dishwasher in such a way that even better cleaning results are achieved.

Erfindungsgemäß wird diese Aufgabe bei einer Geschirrspülmaschine der eingangs genannten Art dadurch gelöst, dass die Düsen im wesentlichen an dem äußeren Ende des wenigstens einen Teilarms angeordnet sind.According to the invention, this object is achieved in a dishwasher of the type mentioned above in that the nozzles are arranged substantially at the outer end of the at least one partial arm.

Durch die Erfindung wird eine Geschirrspülmaschine geschaffen, in der alle Bereiche der Oberflächen des Spülgutes durch die Reinigungsflüssigkeit erreicht werden, so dass eine gute Reinigung mit hoher Reinigungsintensität erzielt wird.The invention provides a dishwasher in which all areas of the surfaces of the items to be washed are achieved by the cleaning liquid, so that a good cleaning with high cleaning intensity is achieved.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen, der Beschreibung und den Zeichnungen.Advantageous developments of the invention will become apparent from the dependent claims, the description and the drawings.

Von Vorteil ist eine Geschirrspülmaschine, in der die Düsen zu 90 % im äußeren Drittel des wenigstens einen Teilarms angeordnet sind.An advantage is a dishwasher in which the nozzles too 90% are arranged in the outer third of the at least one partial arm.

In vorteilhafter Weiterbildung der Erfindung weisen Öffnungen der Düsen wenigstens eine Richtungskomponente in tangentialer Richtung des Sprüharms auf, bezogen auf die von diesem bei seiner Bewegung um die Rotationsachse aufgespannte Kreisebene. Dadurch lassen sich sowohl der Tragarm als auch der Sprüharm allein durch die Rückstoßkraft des unter Druck stehenden Wassers antreiben, ohne ein anderes Antriebsmittel oder ein Getriebe vorsehen zu müssen.In an advantageous development of the invention, openings of the nozzles have at least one directional component in the tangential direction of the spray arm, based on the circle plane defined by the latter during its movement about the axis of rotation. As a result, both the support arm and the spray arm can be driven solely by the repulsive force of the pressurized water, without having to provide another drive means or a transmission.

Von Vorteil ist auch, wenn der Sprüharm zwei bezüglich seiner Drehachse symmetrisch einander gegenüberliegende Teilarme umfasst, an deren äußeren Peripherien die Düsen jeweils verteilt angeordnet sind. Durch die beiden Teilarme wird eine vollständige Besprühung des zu reinigenden Spülgutes gewährleistet.It is also advantageous if the spray arm comprises two with respect to its axis of rotation symmetrically opposing partial arms, on the outer peripheries of the nozzles are arranged distributed. By the two arms a complete spraying of the items to be cleaned is guaranteed.

Um eine vollständige Benetzung des Geschirrs zu erreichen, sind die Düsen jeweils in verschiedenen Richtungen orientiert, so dass die Reinigungsflüssigkeit oder das Wasser aus verschiedenen Winkeln auf das Spülgut auftrifft.In order to achieve a complete wetting of the dishes, the nozzles are each oriented in different directions, so that the cleaning liquid or the water impinges on the dishes from different angles.

Beispielsweise können die Düsen in senkrechter Richtung, in oder entgegen der Antriebsrichtung, nach innen oder nach außen oder schräg zur Längsachse der Teilarme des Sprüharms ausgerichtet sind. Vorzugsweise ist wenigstens eine der Düsen wenigstens teilweise geneigt bezüglich der senkrechten Achse des Sprüharms oder in der Drehebene des Sprüharms liegend angeordnet.For example, the nozzles can be aligned in the vertical direction, in or against the drive direction, inwards or outwards or obliquely to the longitudinal axis of the arms of the spray arm. Preferably, at least one of the nozzles is arranged at least partially inclined with respect to the vertical axis of the spray arm or lying in the plane of rotation of the spray arm.

Für eine vollständige Benetzung des Geschirrs ist es ausreichend, wenn sich der Tragarm im wesentlichen über eine Länge erstreckt, die durch den Abstand zwischen den beiden Rotationsachsen festgelegt ist. Durch die kurze Länge des Tragarms werden Druckverluste des Wassers, die durch den Antrieb und das Befüllen eines doppelt so langen Tragarms verloren gehen würden, eingespart. Damit steht mehr Reinigungswasser innerhalb des Wasserkreislaufs für die Reinigung des Geschirrs zur Verfügung, so dass insbesondere auch ein ausreichend hoher Druck zur Erzeugung der Drehbewegung des Sprüharms aufrechterhalten wird.For a complete wetting of the dishes it is sufficient if the support arm extends substantially over a length which is determined by the distance between the two axes of rotation. The short length of the support arm, pressure losses of the water, which would be lost by the drive and the filling of a double as long arm, saved. This is more cleaning water within the water cycle for cleaning the dishes available, so that in particular a sufficiently high pressure to generate the rotational movement of the spray arm is maintained.

Auch der Sprüharm hat ungefähr die Länge des Tragarms, die ungefähr einem Viertel der kürzeren Seitenlänge des Spülbehälters entsprechen kann oder noch kürzer ist. Je nach Ausrichtung der Sprühdüsen kann die Länge des Sprüharms aber auch noch geringer sein. Somit wird gemäß der Erfindung eine sehr kompakte Sprühvorrichtung geschaffen, die aufgrund der epizykloidalen Bewegung des Sprüharms eine optimale Benetzung des Spülgutes gewährleistet. Die Sprühvorrichtung umfasst im Decken- und/oder im Bodenbereich des Spülbehälters eine jeweils aus einem Tragarm und einem Sprüharm bestehende Drehvorrichtung, die mit einem Umwälzsystem für die Reinigungsflüssigkeit in Verbindung steht.Also, the spray arm has approximately the length of the support arm, which may be about one-quarter of the shorter side length of the washing container or even shorter. Depending on the orientation of the spray nozzles, the length of the spray arm but also be even lower. Thus, according to the invention, a very compact spraying device is provided, which ensures optimum wetting of the ware due to the epicycloidal movement of the spray arm. The spraying device comprises in the ceiling and / or in the bottom region of the washing compartment a rotary device consisting in each case of a support arm and a spray arm, which is connected to a circulating system for the cleaning fluid.

Nachstehend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnungen näher erläutert. Diese zeigen:

Fig. 1
eine schematische Draufsicht auf eine Sprühvorrichtung innerhalb eines Spülbehälters, wobei gleichzeitig die Bahnen des Tragarms und des Sprüharms dargestellt sind,
Fig. 2
eine Detailansicht des Sprüharms aus Fig. 1 mit auf diesem angebrachten Sprühdüsen und
Fig. 3
die Anordnung der Düsen auf dem Sprüharm gemäß Fig. 2 mit einer Darstellung der Richtungen, in die Reinigungsflüssigkeit gesprüht wird.
The invention will be explained in more detail in an embodiment with reference to the drawings. These show:
Fig. 1
a schematic plan view of a spray device within a washing container, wherein at the same time the tracks of the support arm and the spray arm are shown,
Fig. 2
a detailed view of the spray arm of FIG. 1 with this attached spray nozzles and
Fig. 3
the arrangement of the nozzles on the spray arm of FIG. 2 with a representation of the directions in which cleaning liquid is sprayed.

Eine in einem Kreislauf zur Umwälzung einer Reinigungsflüssigkeit integrierte Sprühvorrichtung 1 (Fig. 1) ist entweder unter der Decke oder oberhalb des Bodens eines Spülbehälters 2 in einer Geschirrspülmaschine angebracht. Die Sprühvorrichtung 1 umfasst einen um eine im wesentlichen in der Mitte des Spülbehälters 2 angeordnete Drehachse 3 drehbaren Tragarm 4, dessen Länge weniger als ein Viertel der kleineren Seitenlänge des Spülbehälters 2 beträgt.A spray device 1 (FIG. 1) integrated in a circuit for circulating a cleaning liquid is mounted either under the ceiling or above the bottom of a washing container 2 in a dishwasher. The spraying device 1 comprises a support arm 4, which is rotatable about a rotation axis 3 arranged essentially in the middle of the washing container 2 and whose length is less than a quarter of the smaller side length of the washing container 2.

Auf dem Tragarm 4 ist um eine weitere Drehachse 5 drehbar ein Sprüharm 6 angeordnet. Innerhalb der Umwälzeinrichtung wird dem Tragarm 4 über eine erste Drehdurchführung im Bereich der Drehachse 3 Reinigungsflüssigkeit unter Druck zugeführt, die durch das Innere des Tragarms 4 hindurch über eine zweite Drehdurchführung im Bereich der Drehachse 5 in den Sprüharm 6 weiterströmt.On the support arm 4, a spray arm 6 is rotatably arranged about a further axis of rotation 5. Within the circulation device, cleaning liquid is supplied under pressure to the support arm 4 via a first rotary leadthrough in the area of the rotation axis 3, which continues to flow into the spray arm 6 through the interior of the support arm 4 via a second rotary leadthrough in the area of the rotation axis 5.

Aufgrund des Drucks, unter dem die Reinigungsflüssigkeit steht, wird sie aus Düsen 7 an den äußeren Enden des Sprüharms 6 herausgesprüht. Da wenigstens einige der Düsen 7 eine Öffnung aufweisen, aus der die Reinigungsflüssigkeit derart herausströmt, dass sie eine Richtungskomponente in tangentialer Richtung, bezogen auf die von dem Sprüharm 6 aufgespannte Kreisebene aufweist, dreht sich der Sprüharm 6 in einer Kreisbewegung um die Drehachse 5. Gleichzeitig wird aufgrund des Rückstoßes auch der Tragarm 4 in Bewegung versetzt, so dass auch dieser eine Kreisbewegung entsprechend einer Kreislinie A, die die Bewegung des äußersten radialen Punkts des Tragarms 4 wiedergibt.Due to the pressure under which the cleaning liquid stands, it is sprayed out of nozzles 7 at the outer ends of the spray arm 6. Since at least some of the nozzles 7 have an opening from which the cleaning liquid flows out in such a way that it has a directional component in the tangential direction with respect to the circular plane formed by the spray arm 6, the spray arm 6 rotates in a circular motion about the axis of rotation 5. Simultaneously is due to the recoil and the support arm 4 is set in motion, so that this is a circular movement corresponding to a circular line A, which reflects the movement of the outermost radial point of the support arm 4.

Durch die Überlagerung der Kreisbewegung des Sprüharms 6 mit der Kreisbewegung des Tragarms 4 vollzieht der Sprüharm 6 eine epizykloidale Bewegung auf einer Bewegungslinie B, die die Bewegung der äußeren Peripherie des Sprüharms 6 wiedergibt. Hierdurch wird das Geschirr in dem Spülbehälter 2 unter einer Vielzahl verschiedener Winkelpositionen angesprüht und wird dadurch vollständig benetzt.By the superposition of the circular movement of the spray arm 6 with the circular movement of the support arm 4, the spray arm 6 executes an epicycloidal movement on a line of movement B, which reflects the movement of the outer periphery of the spray arm 6. As a result, the dishes in the washing container 2 is sprayed under a variety of different angular positions and is thereby completely wetted.

Der Sprüharm 6 hat zwei bezüglich der Drehachse 5 symmetrische Teilarme 61 und 62, an deren äußeren Enden jeweils die Sprühdüsen 7 angeordnet sind. Die Sprühdüsen 7 (Fig. 2, 3) haben bezüglich der Ebene des Sprüharms 6 und bezüglich der Drehachse 5 vorzugsweise verschiedene Öffnungswinkel, so dass die Reinigungsflüssigkeit unter verschiedenen Richtungen C, D, E, F aus ihnen herausströmt und in jeder Position des Sprüharms 6 verschiedene Bereiche des Geschirrs innerhalb des Spülbehälters 2 besprüht werden.The spray arm 6 has two with respect to the axis of rotation 5 symmetrical part arms 61 and 62, at the outer ends of each of the spray nozzles 7 are arranged. The spray nozzles 7 (FIGS. 2, 3) preferably have different opening angles with respect to the plane of the spray arm 6 and with respect to the axis of rotation 5, so that the cleaning liquid flows out of them in different directions C, D, E, F and in every position of the spray arm 6 different areas of the dishes within the washing container 2 are sprayed.

Gemäß der Erfindung ist es nicht erforderlich, im mittleren Bereich der Teilarme 61, 62, also näher zu der Drehachse 5 hin, zusätzliche Düsen anzubringen, da durch die epizykloidale Bewegung des Sprüharms 6 eine vollständige Benetzung des Geschirrs gewährleistet wird.According to the invention, it is not necessary to install additional nozzles in the middle region of the partial arms 61, 62, ie closer to the axis of rotation 5, since complete wetting of the dishes is ensured by the epicycloidal movement of the spray arm 6.

Claims (7)

Geschirrspülmaschine mit einem Spülbehälter (2) mit einer rotierenden Sprüheinrichtung, die einen sich um eine erste im wesentlichen senkrechte Achse (3) drehenden Tragarm (4) und einen sich in einem Abstand zu der ersten senkrechten Achse (3) auf dem Tragarm (4) um eine zweite, ebenfalls im wesentlichen senkrechte Achse (5) drehenden und wenigstens einen Teilarm (61, 62) aufweisenden Sprüharm (6) umfasst, der über Düsen (7) Reinigungsflüssigkeit auf zu reinigendes Geschirr sprüht und zusammen mit dem Tragarm (4) durch den Rückstoß der unter Druck stehenden Reinigungsflüssigkeit antreibbar ist,
dadurch gekennzeichnet,
dass die Düsen im wesentlichen an dem äußeren Ende des wenigstens einen Teilarms angeordnet sind.Dishwashing machine comprising a washing container (2) with a rotating spray device which has a support arm (4) rotating about a first substantially vertical axis (3) and a support arm (4) spaced apart from the first vertical axis (3). comprises a second, likewise substantially vertical axis (5) rotating and at least one partial arm (61, 62) having spray arm (6) which sprays cleaning liquid onto the dishes to be cleaned via nozzles (7) and together with the support arm (4) the recoil of the pressurized cleaning liquid is drivable,
characterized,
that the nozzles are arranged substantially at the outer end of the at least one partial arm. Geschirrspülmaschine nach Anspruch 1,
dadurch gekennzeichnet,
dass die Düsen (7) zu 90 % im äußeren Drittel des wenigstens einen Teilarms (61, 62) angeordnet sind.Dishwasher according to claim 1,
characterized,
that the nozzles (7) are arranged at 90% in the outer third of the at least one partial arm (61, 62). Geschirrspülmaschine nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass Öffnungen der Düsen (7) wenigstens eine Richtungskomponente in tangentialer Richtung des Sprüharms (6) aufweisen.Dishwasher according to claim 1 or 2,
characterized,
that openings of the nozzles (7) at least (6) have a direction component in the tangential direction of the spray arm. Geschirrspülmaschine nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass der Sprüharm (6) zwei bezüglich seiner Drehachse (5) symmetrisch einander gegenüberliegende Teilarme (61, 62) umfasst, an deren äußeren Peripherien die Düsen (7) jeweils verteilt angeordnet sind.Dishwasher according to one of claims 1 to 3,
characterized,
in that the spray arm (6) comprises two partial arms (61, 62) which are symmetrically opposite one another with respect to its axis of rotation (5), at the outer peripheries of which the nozzles (7) respectively are arranged distributed. Geschirrspülmaschine nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass die Düsen (7) jeweils in verschiedenen Richtungen orientiert sind.Dishwasher according to one of claims 1 to 4,
characterized,
that the nozzles (7) are respectively oriented in different directions. Geschirrspülmaschine nach Anspruch 5,
dadurch gekennzeichnet,
dass die Düsen (7) in senkrechter Richtung, in oder entgegen der Antriebsrichtung, nach innen oder nach außen oder schräg zur Längsachse der Teilarme (61, 62) des Sprüharms (6) ausgerichtet sind.Dishwasher according to claim 5,
characterized,
that the nozzles (7) in the vertical direction in or against the driving direction, inwards or outwards or obliquely to the longitudinal axis of the partial arms (61, 62) of the spray arm are aligned (6). Geschirrspülmaschine nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass sich der Tragarm (4) im wesentlichen über eine Länge erstreckt, die durch den Abstand zwischen den beiden Achsen (3, 5) festgelegt ist.Dishwasher according to one of claims 1 to 6,
characterized,
that the support arm (4) extends substantially over a length which is determined by the distance between the two axes (3, 5).
EP05012831A 2004-09-10 2005-06-15 Dishwasher having a spray arm assembly Active EP1634526B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12183651A EP2545838A1 (en) 2004-09-10 2005-06-15 Dishwasher with a spray device
PL05012831T PL1634526T3 (en) 2004-09-10 2005-06-15 Dishwasher having a spray arm assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004043772A DE102004043772A1 (en) 2004-09-10 2004-09-10 Dishwasher with a spraying device

Publications (3)

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EP1634526A2 true EP1634526A2 (en) 2006-03-15
EP1634526A3 EP1634526A3 (en) 2009-10-21
EP1634526B1 EP1634526B1 (en) 2012-09-12

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EP05012831A Active EP1634526B1 (en) 2004-09-10 2005-06-15 Dishwasher having a spray arm assembly

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DE (1) DE102004043772A1 (en)
PL (1) PL1634526T3 (en)

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EP2279687A1 (en) * 2009-07-28 2011-02-02 Electrolux Home Products Corporation N.V. Spray arm arrangement for a dishwasher
EP2389851A1 (en) 2010-05-25 2011-11-30 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
EP2389852A1 (en) 2010-05-25 2011-11-30 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
ITTO20120199A1 (en) * 2012-03-08 2013-09-09 Bitron Spa TOGETHER FOR WASHING APPLIED TO A WASHING MACHINE AND / OR DRYER.
WO2013132458A1 (en) * 2012-03-08 2013-09-12 Bitron S.P.A. Wash assembly applied to a washing machine and/or drying machine
US10058226B2 (en) 2014-03-24 2018-08-28 Electrolux Appliances Aktiebolag Dishwasher comprising at least one dishwasher spray arm
CN109124523A (en) * 2018-10-22 2019-01-04 苏州科洁泰电器有限公司 Dish-washing machine spray equipment and its spray system based on link mechanism
CN109965816A (en) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 A kind of cleaning machine
CN109965804A (en) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 A kind of cleaning machine
US10667668B2 (en) 2013-06-27 2020-06-02 Whirlpool Corporation Dishwasher with rotationally mounted sprayer
CN111297293A (en) * 2018-12-12 2020-06-19 青岛海尔洗碗机有限公司 Dish washer spray set and dish washer

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
EP2215952A1 (en) 2009-02-09 2010-08-11 Electrolux Home Products Corporation N.V. Spray arm assembly for a dishwasher
USD885694S1 (en) 2017-09-19 2020-05-26 Electrolux Home Products, Inc. Sprayer for dishwasher

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US5579789A (en) * 1995-01-04 1996-12-03 Whirlpool Corporation Food soil handling system for a dishwasher
EP1050263A2 (en) * 1999-05-03 2000-11-08 Electrolux Zanussi S.p.A. Dishwashing machine with epicycloidal spray apparatus
EP1510168A2 (en) * 2003-08-29 2005-03-02 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher

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US3496949A (en) * 1967-02-02 1970-02-24 Gen Motors Corp Dishwasher with multiple spray arm
US5579789A (en) * 1995-01-04 1996-12-03 Whirlpool Corporation Food soil handling system for a dishwasher
EP0727177A2 (en) * 1995-02-15 1996-08-21 SMEG S.p.A. Revolving sprinkling assembly for dishwashers, provided with horizontal reciprocating motion
EP1050263A2 (en) * 1999-05-03 2000-11-08 Electrolux Zanussi S.p.A. Dishwashing machine with epicycloidal spray apparatus
EP1510168A2 (en) * 2003-08-29 2005-03-02 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2279687A1 (en) * 2009-07-28 2011-02-02 Electrolux Home Products Corporation N.V. Spray arm arrangement for a dishwasher
WO2011012234A1 (en) * 2009-07-28 2011-02-03 Electrolux Home Products Corporation N.V. Spray arm arrangement for a dishwasher
US9456730B2 (en) 2009-07-28 2016-10-04 Electrolux Home Products Corporation N.V. Spray arm arrangement for a dishwasher
AU2010278322B2 (en) * 2009-07-28 2015-12-03 Electrolux Home Products Corporation N.V. Spray arm arrangement for a dishwasher
WO2011147682A3 (en) * 2010-05-25 2012-03-22 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
EP2389851A1 (en) 2010-05-25 2011-11-30 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
WO2011147682A2 (en) 2010-05-25 2011-12-01 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
CN102905602A (en) * 2010-05-25 2013-01-30 伊莱克斯家用产品公司 Wash arm arrangement for a dishwasher
WO2011147716A1 (en) 2010-05-25 2011-12-01 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
CN102905602B (en) * 2010-05-25 2016-01-13 伊莱克斯家用产品公司 Cleaning arm equipment in dish-washing machine
US8985126B2 (en) 2010-05-25 2015-03-24 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
US9125541B2 (en) 2010-05-25 2015-09-08 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
EP2389852A1 (en) 2010-05-25 2011-11-30 Electrolux Home Products Corporation N.V. Wash arm arrangement for a dishwasher
WO2013132458A1 (en) * 2012-03-08 2013-09-12 Bitron S.P.A. Wash assembly applied to a washing machine and/or drying machine
ITTO20120199A1 (en) * 2012-03-08 2013-09-09 Bitron Spa TOGETHER FOR WASHING APPLIED TO A WASHING MACHINE AND / OR DRYER.
US10667668B2 (en) 2013-06-27 2020-06-02 Whirlpool Corporation Dishwasher with rotationally mounted sprayer
US11019981B2 (en) 2013-06-27 2021-06-01 Whirlpool Corporation Dishwasher with rotationally mounted sprayer
US10820780B2 (en) 2013-06-27 2020-11-03 Whirlpool Corporation Dishwasher
US10058226B2 (en) 2014-03-24 2018-08-28 Electrolux Appliances Aktiebolag Dishwasher comprising at least one dishwasher spray arm
CN109965804A (en) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 A kind of cleaning machine
CN109965816A (en) * 2017-12-28 2019-07-05 宁波方太厨具有限公司 A kind of cleaning machine
CN109965804B (en) * 2017-12-28 2023-12-15 宁波方太厨具有限公司 Cleaning machine
CN109965816B (en) * 2017-12-28 2024-01-16 宁波方太厨具有限公司 Cleaning machine
CN109124523A (en) * 2018-10-22 2019-01-04 苏州科洁泰电器有限公司 Dish-washing machine spray equipment and its spray system based on link mechanism
CN111297293A (en) * 2018-12-12 2020-06-19 青岛海尔洗碗机有限公司 Dish washer spray set and dish washer
CN111297293B (en) * 2018-12-12 2024-05-17 青岛海尔洗碗机有限公司 Spraying device of dish washer and dish washer

Also Published As

Publication number Publication date
DE102004043772A1 (en) 2006-03-30
EP1634526A3 (en) 2009-10-21
EP1634526B1 (en) 2012-09-12
PL1634526T3 (en) 2013-02-28
EP2545838A1 (en) 2013-01-16

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