EP2271245B1 - Household appliance, particularly dishwasher - Google Patents

Household appliance, particularly dishwasher Download PDF

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Publication number
EP2271245B1
EP2271245B1 EP09734689.4A EP09734689A EP2271245B1 EP 2271245 B1 EP2271245 B1 EP 2271245B1 EP 09734689 A EP09734689 A EP 09734689A EP 2271245 B1 EP2271245 B1 EP 2271245B1
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EP
European Patent Office
Prior art keywords
household appliance
door
appliance according
container
stiffening means
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.)
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EP09734689.4A
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German (de)
French (fr)
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EP2271245A1 (en
Inventor
Werner Haltmayer
Mathias Herrmann
Stefan Kasbauer
Claus KÖTHER
Martin Weissenburger
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.)
BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL09734689T priority Critical patent/PL2271245T3/en
Publication of EP2271245A1 publication Critical patent/EP2271245A1/en
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Publication of EP2271245B1 publication Critical patent/EP2271245B1/en
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Classifications

    • 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
    • A47L15/4251Details of the casing
    • A47L15/4257Details of the loading door
    • A47L15/4263Door sealing arrangements

Definitions

  • the invention relates to a domestic appliance, in particular a dishwasher, according to the preamble of claim 1.
  • the correct position arrangement of the door is important to maintain a uniform gap between the door and the frame parts. With a uniform gap, it is ensured, inter alia, that the inside of the door of the door is reliably in sealing contact with a, a feed opening of the work space moving sealing element.
  • the document DE-U1-29519962 discloses a dishwasher with at least one container for receiving items to be treated, which has a closable with a device door container opening, wherein the container opening has at least one centering element, whereby an orientation of the appliance door to the container opening is effected.
  • the object of the invention is to provide a household appliance, in which the appliance door in the closed position with reduced assembly costs in reliable sealing system with a sealing element.
  • the invention relates to a household appliance, in particular a dishwasher, at least comprising a container for receiving material to be treated, in particular ware having a closable with a device door container opening, at least partially assigned stiffening means for increasing the rigidity of the container in the region of the container opening are, which have at least one centering element, by the closed door a orientation of the door to the container opening can be effected.
  • the stiffening means and the at least one centering element of the same material and / or integrally formed as a plastic profile part, in particular in the plastic injection molding process Upon movement into the closed position, the appliance door is thus centered in the correct position by means of the centering element, whereby a sufficient overlap between the appliance door and the sealing element is ensured.
  • the appliance door in the closed position, is arranged at least between two mutually opposite sections of the container opening arranged stiffening means. This two-sided arrangement ensures particularly reliably that the appliance door is aligned with the opening in such a way that an optimum sealing effect is achieved.
  • the stiffening means are formed as the container opening at least partially encircling frame parts.
  • the frame parts may be arranged in a U-shaped manner on three sides of a substantially rectangular container opening and thus at the same time cause a mechanical stiffening of the container in the region of the container opening.
  • the at least one centering element defines a gap dimension (a) between the appliance door and the stiffening means.
  • the centering according to the invention ensures perfect sealing between the inside of the door and the sealing element.
  • the frame parts may form part of a, a feed opening of the washing container moving frame, in particular plastic frame.
  • the centering element can be a protrusion projecting from the frame part.
  • the bulge may preferably not only be rotationally symmetrical, but be elongated strip-shaped in a depth direction of the household appliance. As a result, a reliable lateral guidance of the appliance door between the two frame parts is ensured during a closing movement.
  • The, the front-side utility space opening pulling sealing element can be supported in a sealing groove. This can in turn be integrally formed on the frame parts.
  • the sealing groove can be designed to be open at the front.
  • the centering element integrally formed on the boundary side of the plastic frame extends as far as a section projecting from the limiting side. In this way, no undercut is formed between the centering and the projecting portion.
  • the boundary-side projecting portion may be e.g. a gradation on which the sealing element sits.
  • Fig. 1 is shown in a perspective view as a household appliance, a dishwasher, the front-side appliance door 1 is shown half open.
  • the dishwasher has a usable space made of stainless steel sheet washing container 3.
  • the washing container 3 is connected at its front loading opening with a plastic frame 5. This moves the front loading port and has two lateral, vertical frame parts 7, which are connected to an upper horizontal frame part 9.
  • the appliance door 1 of the dishwasher is in a known manner in two parts from a front outer part 11, on which approximately a furniture plate 12 is provided, and a door inner part 13 formed from deep-drawn sheet, according to the Fig. 2 in an indicated screw 15 are.
  • the door inner part 13 of the door 1 has at least partially circumferential, deep-drawn side rails 17 at the edge. In a closed position of the door 1, the side rails 17 of the door inner part 13 between facing boundary sides 19 of the frame parts 7, 9 of the plastic frame 5 are immersed.
  • the outer edge sides 21 of the side rails 17 are spaced in the closed position of the appliance door 1 via a gap a of the boundary sides 19 of the frame parts 7, 9, as in the Fig. 2 is indicated.
  • Fig. 2 is shown in an enlarged partial sectional view of the door 1 with about half dipped in the plastic frame 5 side rail 17.
  • the side rails 17 of the door inner part 13 are with their front sides 23 in sealing engagement with a sealing element 25 which is provided on the boundary side 19 of the plastic frame member 5 and the feed opening of the washing container 3 moves.
  • the sealing element 25 is indicated only in dash-dotted line.
  • the plastic frame 5 has according to the Fig. 2 a formed in cross-section as a U-shaped base body 24, extending in the outwardly open cavity stiffening ribs parallel to the two opposite U-legs 26 of the base body 24. At the end facing away from the front of the base body 24 is extended over a gradation 33 inwardly with a connecting flange 34 into the working space of the washing compartment 3 inside. This is overlapped in the depth direction x with the stainless steel sheet of the washing container 3 and connected by means of integrally formed connecting pin 36 with the washing container 3.
  • the connecting flange 34 is offset over the step 33 with respect to the base body 24 of the plastic frame 5 inwards.
  • the connecting flange 34 is extended with a wall portion 35 to the front of the device, which is parallel to the limiting side 19 of the plastic frame 5.
  • a sealing groove 27 is formed, which extends along the frame parts 7, 9 and the front side is open.
  • the sealing element 25 is inserted into the plastic frame 5 integrally formed, front open sealing groove 27.
  • the sealing element 25 is undeformed indicated in dashed line. Consequently, the sealing element 25 has an approximately tubular upper sealing portion 28, which protrudes from the sealing groove 27, and then subsequently a sealing shaft 29 inserted in the sealing groove 27.
  • the sealing groove 27 is formed with its groove bottom, which is formed by the gradation 33, directly to the boundary sides 19 of the plastic frame 5.
  • a centering element 37 is provided on the boundary side 19 of the lateral frame parts 7, of which in the Fig. 1 only one is shown.
  • the centering element 37 is formed integrally with the frame part 7 as a bulge which extends over a height h of the boundary side 19 protrudes inward.
  • the centering element 37 is formed according to the figures strip-shaped in a Bautiefencardi x and extends into the sealing groove 27, whereby a good lateral guidance of the door 1 is ensured during the closing movement.
  • the strip-shaped bulge 37 passes directly into the groove base 33 of the sealing groove 27.
  • Such a geometry of the centering element 37 is particularly advantageous in a production of the plastic frame 5 by injection molding, which is based on the Fig. 3 is illustrated.
  • Injection molding tools 39, 40, 41 are shown, which define in their closed position together an injection molding chamber 43, with which the plastic frame 5 is formed with integrated centering element 37.
  • the injection mold 39 is important.
  • the injection molding tool 39 adjoins the further injection molding tools 40, 41 via demoulding levels E and has a projection 45, with which the sealing groove 27 for the sealing element 25 is formed.
  • the injection molding tool 39 has a substantially planar shaping surface 47, with which the inwardly facing boundary sides 19 of the plastic frame 5 are formed.
  • a groove-shaped bulge 49 is provided, which forms the centering element 37.
  • the bulge 49 extends at a constant depth, which is identical to the height h of the centering element 37, to the front side of the mold projection 45.
  • the injection molding tool 39 can thus be pushed out of the sealing groove 27 in the demoulding direction I without having to overcome undercuts on the boundary side 19 of the plastic frame 5. Accordingly, after the shaping has taken place, the other two injection molding tools 40, 41 can also be moved apart in the demoulding direction I.
  • holding portion 46 secures the sealing element 25 inserted in the sealing groove 27 and is provided at the free, front end of the wall section 35.
  • an undercut is formed by the holding portion 46.
  • the wall portion 35 is formed sufficiently elastically bendable on the plastic frame 5. In a demolding movement of the injection molding tool 39, therefore, the wall portion 35 can escape elastically with its undercut. The Entformungsvorgang is therefore readily possible.
  • the rigid base body 24 of the plastic frame 5 can not yield elastically with its limiting side 19, so that undercuts on the limiting side are to be avoided on the rigid base body 24.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Description

Die Erfindung betrifft ein Haushaltsgerät, insbesondere eine Geschirrspülmaschine, nach dem Oberbegriff des Patentanspruches 1.The invention relates to a domestic appliance, in particular a dishwasher, according to the preamble of claim 1.

Es sind allgemein Haushaltsgeräte bekannt, deren Nutzraum von einer Gerätetür verschließbar ist. In der Schließstellung kann die Gerätetür beidseitig zwischen Rahmenteilen des Haushaltsgerätes angeordnet sein.There are generally known household appliances whose utility space is closed by a door. In the closed position, the appliance door can be arranged on both sides between frame parts of the household appliance.

In einer solchen Schließstellung ist die lagerichtige Anordnung der Gerätetür von Bedeutung, um ein gleichmäßiges Spaltmaß zwischen der Gerätetür und den Rahmenteilen einzuhalten. Mit einem gleichmäßigen Spaltmaß wird unter anderem gewährleistet, dass die Türinnenseite der Gerätetür zuverlässig in dichtender Anlage mit einem, eine Beschickungsöffnung des Nutzraums umziehenden Dichtelement ist.In such a closed position, the correct position arrangement of the door is important to maintain a uniform gap between the door and the frame parts. With a uniform gap, it is ensured, inter alia, that the inside of the door of the door is reliably in sealing contact with a, a feed opening of the work space moving sealing element.

Die Einhaltung des Spaltmaßes ist insbesondere bei Geschirrspülmaschinen, deren Spülbehälter-Öffnung von einem Kunststoffrahmen umzogen ist, schwierig. Der Kunststoffrahmen weist im Vergleich zu einem Stahlrahmen eine reduzierte Steifigkeit auf. So kann es bei einer Schiefstellung der Geschirrspülmaschine zu einer Verformung des Kunststoffrahmens kommen, wodurch eine ausreichende Überdeckung der Türinnenseite der Gerätetür mit dem am Kunststoffrahmen vorgesehenen Dichtelement nicht mehr gewährleistet ist. Um eine Korrektur der Ausrichtung der Gerätetür zu der Spülbehälter-Öffnung zu bewirken werden im Wesentlichen pilzförmige Einführhilfen in Bohrungen eingesetzt. Dies erhöht jedoch den Montageaufwand. Das Dokument DE-U1-29519962 offenbart eine Geschirrspülmaschine mit wenigstens einem Behälter zur Aufnahme von zu behandelnden Spülgut, der eine mit einer Gerätetür verschließbare Behälteröffnung aufweist, wobei die Behälteröffnung wenigstens ein Zentrierelement aufweist, womit eine Ausrichtung der Gerätetür zu der Behälteröffnung bewirkbar ist. Die Aufgabe der Erfindung besteht darin, ein Haushaltsgerät bereitzustellen, bei dem die Gerätetür in Schließstellung bei reduziertem Montageaufwand in zuverlässiger Dichtanlage mit einem Dichtelement ist.Compliance with the gap is difficult, especially in dishwashers whose washing container opening is covered by a plastic frame. The plastic frame has a reduced rigidity compared to a steel frame. Thus, in the case of a skewed position of the dishwasher, a deformation of the plastic frame may occur, as a result of which sufficient covering of the inside of the door of the appliance door with the sealing element provided on the plastic frame is no longer guaranteed. In order to effect a correction of the orientation of the appliance door to the washing-up container opening, substantially mushroom-shaped insertion aids are inserted into bores. However, this increases the assembly costs. The document DE-U1-29519962 discloses a dishwasher with at least one container for receiving items to be treated, which has a closable with a device door container opening, wherein the container opening has at least one centering element, whereby an orientation of the appliance door to the container opening is effected. The object of the invention is to provide a household appliance, in which the appliance door in the closed position with reduced assembly costs in reliable sealing system with a sealing element.

Die Aufgabe ist durch die Merkmale des Patentanspruches 1 gelöst. Bevorzugte Weiterbildungen der Erfindung sind in den Unteransprüchen offenbart.The object is solved by the features of claim 1. Preferred embodiments of the invention are disclosed in the subclaims.

Die Erfindung geht aus von einem Haushaltsgerät, insbesondere einer Geschirrspülmaschine, wenigstens aufweisend einen Behälter zur Aufnahme von zu behandelnden Gut, insbesondere Spülgut, der eine mit einer Gerätetür verschließbare Behälteröffnung aufweist, die wenigstens abschnittsweise Versteifungsmittel zur Erhöhung der Steifigkeit des Behälters im Bereich der Behälteröffnung zugeordnet sind, die wenigstens ein Zentrierelement aufweisen, durch die bei geschlossener Gerätetür eine Ausrichtung der Gerätetür zu der Behälteröffnung bewirkbar ist.The invention relates to a household appliance, in particular a dishwasher, at least comprising a container for receiving material to be treated, in particular ware having a closable with a device door container opening, at least partially assigned stiffening means for increasing the rigidity of the container in the region of the container opening are, which have at least one centering element, by the closed door a orientation of the door to the container opening can be effected.

Gemäß dem kennzeichnenden Teil des Patentanspruches 1 sind die Versteifungsmittel und das wenigstens eine Zentrierelement materialeinheitlich und/oder einstückig als Kunststoff-Profilteil ausgebildet, insbesondere im Kunststoffspritzgussverfahren. Bei einer Bewegung in die Schließstellung wird somit die Gerätetür mittels des Zentrierelements lagerichtig zentriert, wodurch eine ausreichende Überdeckung zwischen der Gerätetür und dem Dichtelement gewährleistet ist.According to the characterizing part of claim 1, the stiffening means and the at least one centering element of the same material and / or integrally formed as a plastic profile part, in particular in the plastic injection molding process. Upon movement into the closed position, the appliance door is thus centered in the correct position by means of the centering element, whereby a sufficient overlap between the appliance door and the sealing element is ensured.

Vorzugsweise ist vorgesehen, dass in der Schließstellung die Gerätetür wenigstens zwischen zwei an sich gegenüberliegenden Abschnitten der Behälteröffnung angeordneten Versteifungsmittel befindet. Durch diese zweiseitige Anordnung wird besonders zuverlässig sichergestellt, dass die Gerätetür zur Öffnung derart ausgerichtet ist, dass eine optimale Dichtwirkung gegeben ist.It is preferably provided that in the closed position, the appliance door is arranged at least between two mutually opposite sections of the container opening arranged stiffening means. This two-sided arrangement ensures particularly reliably that the appliance door is aligned with the opening in such a way that an optimum sealing effect is achieved.

Ferner ist vorzugsweise vorgesehen, dass die Versteifungsmittel als die Behälteröffnung wenigstens teilweise umlaufende Rahmenteile ausgebildet sind. Bspw. können die Rahmenteile u-förmig an drei Seiten einer im Wesentlichen rechteckförmigen Behälteröffnung angeordnet sein und so zugleich eine mechanische Versteifung des Behälters im Bereich der Behälteröffnung bewirken.Furthermore, it is preferably provided that the stiffening means are formed as the container opening at least partially encircling frame parts. For example. For example, the frame parts may be arranged in a U-shaped manner on three sides of a substantially rectangular container opening and thus at the same time cause a mechanical stiffening of the container in the region of the container opening.

Außerdem ist vorzugsweise vorgesehen, dass das wenigstens eine Zentrierelement ein Spaltmaß (a) zwischen der Gerätetür und den Versteifungsmitteln festlegt. So ist eine zuverlässige Funktion der Dichtung und auch eine problemlose Betätigung der Gerätetür gewährleistet.In addition, it is preferably provided that the at least one centering element defines a gap dimension (a) between the appliance door and the stiffening means. Thus, a reliable function of the seal and also a trouble-free operation of the door is guaranteed.

In der Schließstellung kann die Gerätetür zwischen einander zugewandten Begrenzungsseiten der geräteseitigen Rahmenteile bis in eine Dichtanlage mit dem Dichtelement eingetaucht sein. Durch die erfindungsgemäße Zentrierung ist eine einwandfreie Dichtanlage zwischen der Türinnenseite und dem Dichtelement sichergestellt.In the closed position, the door between each facing boundary sides of the device-side frame parts into a sealing system with the Be immersed sealing element. The centering according to the invention ensures perfect sealing between the inside of the door and the sealing element.

Insbesondere im Falle einer Geschirrspülmaschine können die Rahmenteile Bestandteil eines, eine Beschickungsöffnung des Spülbehälters umziehenden Rahmens, insbesondere Kunststoff-Rahmens, bilden.In particular, in the case of a dishwasher, the frame parts may form part of a, a feed opening of the washing container moving frame, in particular plastic frame.

Im Falle einer integralen Formung am Rahmenteil kann das Zentrierelement eine vom Rahmenteil vorragende Aufwölbung sein. Die Aufwölbung kann bevorzugt nicht nur rotationssymmetrisch sein, sondern in einer Bautiefenrichtung des Haushaltsgerätes streifenförmig langgestreckt sein. Dadurch ist bei einer Schließbewegung eine zuverlässige Seitenführung der Gerätetür zwischen den beiden Rahmenteilen gewährleistet.In the case of an integral molding on the frame part, the centering element can be a protrusion projecting from the frame part. The bulge may preferably not only be rotationally symmetrical, but be elongated strip-shaped in a depth direction of the household appliance. As a result, a reliable lateral guidance of the appliance door between the two frame parts is ensured during a closing movement.

Das, die frontseitige Nutzraum-Öffnung umziehende Dichtelement kann in einer Dichtnut gehaltert sein. Diese kann wiederum integral an den Rahmenteilen angeformt sein. Die Dichtnut kann frontseitig offen gestaltet sein.The, the front-side utility space opening pulling sealing element can be supported in a sealing groove. This can in turn be integrally formed on the frame parts. The sealing groove can be designed to be open at the front.

Bei der Herstellung des Kunststoffrahmens mit integriertem Zentrierelement ist dessen Geometrie so zu gestalten, dass keine Hinterschneidungen am Kunststoffrahmen eine Entformungsbewegung der Spritzgusswerkzeuge behindern. Vor diesem Hintergrund ist es bevorzugt, wenn sich das an der Begrenzungsseite des Kunststoffrahmens angeformte Zentrierelement bis unmittelbar zu einem Abschnitt erstreckt, der von der Begrenzungsseite vorragt. Auf diese Weise ist zwischen dem Zentrierelement und dem vorragenden Abschnitt keine Hinterschneidung gebildet. Der von der Begrenzungsseite vorragende Abschnitt kann z.B. eine Abstufung sein, auf der das Dichtelement sitzt.In the production of the plastic frame with integrated centering its geometry is to be designed so that no undercuts on the plastic frame obstruct a demolding movement of the injection molds. Against this background, it is preferable if the centering element integrally formed on the boundary side of the plastic frame extends as far as a section projecting from the limiting side. In this way, no undercut is formed between the centering and the projecting portion. The boundary-side projecting portion may be e.g. a gradation on which the sealing element sits.

Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der beigefügten Figuren beschrieben.Hereinafter, an embodiment of the invention with reference to the accompanying figures will be described.

Es zeigen:

Fig. 1
in einer perspektivischen Ansicht als Haushaltsgerät eine Geschirrspülmaschine mit halb geöffneter Gerätetür;
Fig. 2
eine Teilschnittdarstellung entlang der in der Fig. 1 gezeigten Schnittebene I-I; und
Fig. 3
in einer Querschnittsansicht Kunststoffspritzguss-Werkzeuge, die eine Spritzgusskammer zur Formung eines Kunststoffrahmens begrenzen.
Show it:
Fig. 1
in a perspective view as a household appliance, a dishwasher with half-open door;
Fig. 2
a partial sectional view along in the Fig. 1 shown section plane II; and
Fig. 3
in a cross-sectional view plastic injection molds that limit an injection molding chamber for forming a plastic frame.

In der Fig. 1 ist in einer perspektivischen Ansicht als Haushaltsgerät eine Geschirrspülmaschine gezeigt, deren frontseitige Gerätetür 1 halb geöffnet dargestellt ist. Die Geschirrspülmaschine weist als Nutzraum einen aus Edelstahlblech gefertigten Spülbehälter 3 auf.In the Fig. 1 is shown in a perspective view as a household appliance, a dishwasher, the front-side appliance door 1 is shown half open. The dishwasher has a usable space made of stainless steel sheet washing container 3.

Der Spülbehälter 3 ist an seiner frontseitigen Beschickungsöffnung mit einem Kunststoffrahmen 5 verbunden. Dieser umzieht die frontseitige Beschickungsöffnung und weist zwei seitliche, vertikale Rahmenteile 7 auf, die mit einem oberen horizontalen Rahmenteil 9 verbunden sind.The washing container 3 is connected at its front loading opening with a plastic frame 5. This moves the front loading port and has two lateral, vertical frame parts 7, which are connected to an upper horizontal frame part 9.

Die Gerätetür 1 der Geschirrspülmaschine ist in bekannter Weise zweiteilig aus einem frontseitigen Außenteil 11, an dem etwa eine Möbelplatte 12 vorgesehen ist, und einem Türinnenteil 13 aus tiefgezogenem Blech gebildet, die gemäß der Fig. 2 in einer angedeuteten Schraubverbindung 15 sind. Das Türinnenteil 13 der Gerätetür 1 weist randseitig zumindest teilweise umlaufende, tiefgezogene Seitenholme 17 auf. In einer Schließstellung der Gerätetür 1 sind die Seitenholme 17 des Türinnenteils 13 zwischen einander zugewandten Begrenzungsseiten 19 der Rahmenteile 7, 9 des Kunststoffrahmens 5 eingetaucht.The appliance door 1 of the dishwasher is in a known manner in two parts from a front outer part 11, on which approximately a furniture plate 12 is provided, and a door inner part 13 formed from deep-drawn sheet, according to the Fig. 2 in an indicated screw 15 are. The door inner part 13 of the door 1 has at least partially circumferential, deep-drawn side rails 17 at the edge. In a closed position of the door 1, the side rails 17 of the door inner part 13 between facing boundary sides 19 of the frame parts 7, 9 of the plastic frame 5 are immersed.

Die äußeren Randseiten 21 der Seitenholme 17 sind in der Schließstellung der Gerätetür 1 über ein Spaltmaß a von den Begrenzungsseiten 19 der Rahmenteile 7, 9 beabstandet, wie es in der Fig. 2 angedeutet ist. In der Fig. 2 ist in vergrößerter Teilschnittansicht die Gerätetür 1 mit etwa halb in den Kunststoffrahmen 5 eingetauchtem Seitenholm 17 gezeigt.The outer edge sides 21 of the side rails 17 are spaced in the closed position of the appliance door 1 via a gap a of the boundary sides 19 of the frame parts 7, 9, as in the Fig. 2 is indicated. In the Fig. 2 is shown in an enlarged partial sectional view of the door 1 with about half dipped in the plastic frame 5 side rail 17.

Bei vollständig zwischen die Rahmenteile 7, 9 eingetauchter Gerätetür 1 liegen die Seitenholme 17 des Türinnenteils 13 mit ihren Vorderseiten 23 in Dichtanlage mit einem Dichtelement 25, das an der Begrenzungsseite 19 des Kunststoff-Rahmenteils 5 vorgesehen ist und die Beschickungsöffnung des Spülbehälters 3 umzieht. In der Fig. 1 ist das Dichtelement 25 lediglich in strichpunktierter Linie angedeutet.When fully immersed between the frame parts 7, 9 appliance door 1, the side rails 17 of the door inner part 13 are with their front sides 23 in sealing engagement with a sealing element 25 which is provided on the boundary side 19 of the plastic frame member 5 and the feed opening of the washing container 3 moves. In the Fig. 1 the sealing element 25 is indicated only in dash-dotted line.

Der Kunststoffrahmen 5 weist gemäß der Fig. 2 einen im Querschnitt als U-Profil ausgebildeten Grundkörper 24 auf, in dessen nach außen offenem Hohlraum Versteifungsrippen parallel zu den beiden gegenüberliegenden U-Schenkeln 26 des Grundkörpers 24 verlaufen. Am, von der Frontseite abgewandten Ende ist der Grundkörper 24 über eine Abstufung 33 nach innen mit einem Verbindungsflansch 34 in den Nutzraum des Spülbehälters 3 hinein verlängert. Dieser ist in der Bautiefenrichtung x mit dem Edelstahlblech des Spülbehälters 3 überlappt und mittels angeformter Verbindungsbolzen 36 mit dem Spülbehälter 3 verbunden.The plastic frame 5 has according to the Fig. 2 a formed in cross-section as a U-shaped base body 24, extending in the outwardly open cavity stiffening ribs parallel to the two opposite U-legs 26 of the base body 24. At the end facing away from the front of the base body 24 is extended over a gradation 33 inwardly with a connecting flange 34 into the working space of the washing compartment 3 inside. This is overlapped in the depth direction x with the stainless steel sheet of the washing container 3 and connected by means of integrally formed connecting pin 36 with the washing container 3.

Der Verbindungsflansch 34 ist über die Abstufung 33 gegenüber dem Grundkörper 24 des Kunststoffrahmens 5 nach innen versetzt. Außerdem ist der Verbindungsflansch 34 mit einem Wandabschnitt 35 zur Gerätefrontseite verlängert, der parallel zur Begrenzungsseite 19 des Kunststoffrahmens 5 ist. Zwischen dem Wandabschnitt 35 und der Begrenzungsseite 19 des Kunststoffrahmens 5 ist eine Dichtnut 27 gebildet, die sich entlang der Rahmenteile 7, 9 erstreckt und frontseitig offen ist.The connecting flange 34 is offset over the step 33 with respect to the base body 24 of the plastic frame 5 inwards. In addition, the connecting flange 34 is extended with a wall portion 35 to the front of the device, which is parallel to the limiting side 19 of the plastic frame 5. Between the wall portion 35 and the boundary side 19 of the plastic frame 5, a sealing groove 27 is formed, which extends along the frame parts 7, 9 and the front side is open.

Das Dichtelement 25 ist in die am Kunststoffrahmen 5 angeformte, frontseitig offene Dichtnut 27 eingesetzt. In der Fig. 2 ist das Dichtelement 25 unverformt in gestrichelter Linie angedeutet. Demzufolge weist das Dichtelement 25 einen in etwa schlauchförmigen oberen Dichtabschnitt 28, der aus der Dichtnut 27 ragt, sowie daran anschließend einen in der Dichtnut 27 eingesetzten Dichtschaft 29 auf. Die Dichtnut 27 ist mit ihrem Nut-Grund, der von der Abstufung 33 gebildet ist, unmittelbar an den Begrenzungsseiten 19 des Kunststoffrahmens 5 angeformt.The sealing element 25 is inserted into the plastic frame 5 integrally formed, front open sealing groove 27. In the Fig. 2 the sealing element 25 is undeformed indicated in dashed line. Consequently, the sealing element 25 has an approximately tubular upper sealing portion 28, which protrudes from the sealing groove 27, and then subsequently a sealing shaft 29 inserted in the sealing groove 27. The sealing groove 27 is formed with its groove bottom, which is formed by the gradation 33, directly to the boundary sides 19 of the plastic frame 5.

In den beiden gegenüber liegenden oberen Eckbereichen des Kunststoffrahmens 5 ist jeweils ein Zentrierelement 37 an der Begrenzungsseite 19 der seitlichen Rahmenteile 7 vorgesehen, von denen in der Fig. 1 nur eines gezeigt ist. Das Zentrierelement 37 ist integral mit dem Rahmenteil 7 als eine Aufwölbung ausgebildet, die über eine Höhe h von der Begrenzungsseite 19 nach innen vorragt. Das Zentrierelement 37 ist gemäß den Figuren streifenförmig in einer Bautiefenrichtung x ausgebildet und erstreckt sich bis in die Dichtnut 27 hinein, wodurch eine gute Seitenführung der Gerätetür 1 bei der Schließbewegung gewährleistet ist.In the two opposite upper corner regions of the plastic frame 5, a centering element 37 is provided on the boundary side 19 of the lateral frame parts 7, of which in the Fig. 1 only one is shown. The centering element 37 is formed integrally with the frame part 7 as a bulge which extends over a height h of the boundary side 19 protrudes inward. The centering element 37 is formed according to the figures strip-shaped in a Bautiefenrichtung x and extends into the sealing groove 27, whereby a good lateral guidance of the door 1 is ensured during the closing movement.

Wie insbesondere aus der Fig. 2 hervorgeht, geht die streifenförmige Auswölbung 37 dabei unmittelbar in den Nut-Grund 33 der Dichtnut 27 über. Eine solche Geometrie des Zentrierelementes 37 ist insbesondere bei einer Fertigung des Kunststoffrahmens 5 im Spritzgussverfahren von Vorteil, das anhand der Fig. 3 veranschaulicht ist.As in particular from the Fig. 2 it emerges, the strip-shaped bulge 37 passes directly into the groove base 33 of the sealing groove 27. Such a geometry of the centering element 37 is particularly advantageous in a production of the plastic frame 5 by injection molding, which is based on the Fig. 3 is illustrated.

In der Fig. 3 sind Spritzgusswerkzeuge 39, 40, 41 gezeigt, die in ihrer Schließstellung gemeinsam eine Spritzgusskammer 43 begrenzen, mit der der Kunststoffrahmen 5 mit integriertem Zentrierelement 37 geformt wird.In the Fig. 3 Injection molding tools 39, 40, 41 are shown, which define in their closed position together an injection molding chamber 43, with which the plastic frame 5 is formed with integrated centering element 37.

Im Zusammenhang mit dem erfindungsgemäßen, im Kunststoffrahmen 5 integrierten Zentrierelement 37 ist das Spritzgusswerkzeug 39 von Bedeutung. Das Spritzgusswerkzeug 39 grenzt über Entformungsebenen E an den weiteren Spritzgusswerkzeugen 40, 41 an und weist einen Vorsprung 45 auf, mit dem die Dichtnut 27 für das Dichtelement 25 geformt wird.In connection with the inventive, integrated in the plastic frame 5 centering 37, the injection mold 39 is important. The injection molding tool 39 adjoins the further injection molding tools 40, 41 via demoulding levels E and has a projection 45, with which the sealing groove 27 for the sealing element 25 is formed.

Das Spritzgusswerkzeug 39 weist eine im Wesentlichen plane Formungsfläche 47 auf, mit der die nach innen gewandten Begrenzungsseiten 19 des Kunststoffrahmens 5 gebildet werden. In der Formungsfläche 47 ist eine rillenförmige Ausbuchtung 49 vorgesehen, die das Zentrierelement 37 formt. Die Ausbuchtung 49 verläuft in konstanter Tiefe, die identisch mit der Höhe h des Zentrierelementes 37 ist, bis zur Stirnseite des Form-Vorsprungs 45. Mit der gezeigten Geometrie des Zentrierelements 37 am Kunststoffrahmen 5 ergeben sich somit keine zusätzlichen Hinterschneidungen zwischen den Zentrierelementen 37 und dem Nut-Grund 33, die das Kunststoffspritzgussverfahren schwieriger gestalten würden.The injection molding tool 39 has a substantially planar shaping surface 47, with which the inwardly facing boundary sides 19 of the plastic frame 5 are formed. In the shaping surface 47, a groove-shaped bulge 49 is provided, which forms the centering element 37. The bulge 49 extends at a constant depth, which is identical to the height h of the centering element 37, to the front side of the mold projection 45. With the shown geometry of the centering element 37 on the plastic frame 5, there are thus no additional undercuts between the centering elements 37 and Groove bottom 33, which would make the plastic injection molding process more difficult.

Nach erfolgter Formung des Kunststoffrahmens 5 kann somit das Spritzgusswerkzeug 39 in der Entformungsrichtung I aus der Dichtnut 27 geschoben werden, ohne dass an der Begrenzungsseite 19 des Kunststoffrahmens 5 Hinterschneidungen zu überwinden sind. Entsprechend können nach erfolgter Formgebung auch die beiden anderen Spritzgusswerkzeuge 40, 41 in der Entformungsrichtung I auseinanderbewegt werden.After the plastic frame 5 has been formed, the injection molding tool 39 can thus be pushed out of the sealing groove 27 in the demoulding direction I without having to overcome undercuts on the boundary side 19 of the plastic frame 5. Accordingly, after the shaping has taken place, the other two injection molding tools 40, 41 can also be moved apart in the demoulding direction I.

Wie aus der Fig. 2 und 3 weiter hervorgeht, ist am Wandabschnitt 35 ein in die Dichtnut 27 einragender Halteabschnitt 46 vorgesehen. Der Halteabschnitt 46 sichert das in der Dichtnut 27 eingesetzte Dichtelement 25 und ist am freien, frontseitigen Ende des Wandabschnitts 35 vorgesehen. Somit ist durch den Halteabschnitt 46 eine Hinterschneidung gebildet.Like from the Fig. 2 and 3 further shows, on the wall portion 35 a projecting into the sealing groove 27 holding portion 46 is provided. The holding section 46 secures the sealing element 25 inserted in the sealing groove 27 and is provided at the free, front end of the wall section 35. Thus, an undercut is formed by the holding portion 46.

Der Wandabschnitt 35 ist jedoch ausreichend elastisch biegbar am Kunststoffrahmen 5 angeformt. Bei einer Entformungsbewegung des Spritzgusswerkzeuges 39 kann daher der Wandabschnitt 35 mit seiner Hinterschneidung elastisch ausweichen. Der Entformungsvorgang ist daher ohne Weiteres möglich.However, the wall portion 35 is formed sufficiently elastically bendable on the plastic frame 5. In a demolding movement of the injection molding tool 39, therefore, the wall portion 35 can escape elastically with its undercut. The Entformungsvorgang is therefore readily possible.

Im Unterschied zum elastisch biegbaren Wandabschnitt 35 kann der steif ausgebildete Grundkörper 24 des Kunststoffrahmens 5 mit seiner Begrenzungsseite 19 nicht elastisch nachgeben, so dass am steifen Grundkörper 24 Hinterschneidungen an der Begrenzungsseite zu vermeiden sind.In contrast to the elastically bendable wall section 35, the rigid base body 24 of the plastic frame 5 can not yield elastically with its limiting side 19, so that undercuts on the limiting side are to be avoided on the rigid base body 24.

Für den Fall, dass sich die Geschirrspülmaschine in einer Schrägstellung befindet, kann es zu einer Verwindung des Kunststoffrahmens 5 kommen. Um in diesem Fall dennoch eine betriebssichere Dichtanlage zwischen dem Türinnenteil 13 und dem Dichtelement 25 zu gewährleisten, erfolgt bei einer Schließbewegung der Gerätetür 1 in die Schließstellung automatisch die Zentrierung der Gerätetür 1 innerhalb des Kunststoffrahmens 5.In the event that the dishwasher is in an inclined position, it can lead to a distortion of the plastic frame 5. In order to ensure in this case, nevertheless, a reliable sealing system between the door inner part 13 and the sealing element 25, takes place during a closing movement of the door 1 in the closed position automatically centering the door 1 within the plastic frame fifth

Dadurch ist ein gleichmäßiges Spaltmaß a zwischen dem Türinnenteil 13 der Gerätetür 1 und den Begrenzungsseiten 19 des Kunststoffrahmens 5 gewährleistet. Durch die lagerichtige Anordnung der Gerätetür 1 in der Schließstellung ist außerdem die Funktionssicherheit des Türschlosses gewährleistet.As a result, a uniform gap a between the door inner part 13 of the door 1 and the boundary sides 19 of the plastic frame 5 is ensured. Due to the correct position arrangement of the door 1 in the closed position, the reliability of the door lock is also ensured.

BEZUGSZEICHENLISTELIST OF REFERENCE NUMBERS

11
Gerätetürdoor
33
Spülbehälterrinse tank
55
KunststoffrahmenPlastic frame
77
seitliche Rahmenteilelateral frame parts
99
horizontales Rahmenteilhorizontal frame part
1111
frontseitiges TüraußenteilFront door outer part
1313
TürinnenteilDoor inner part
1515
Schraubverbindungscrew
1717
Seitenholmeside rails
1919
Begrenzungsseitenboundary sides
2121
äußere Randseitenouter edge sides
2323
Vorderseitefront
2424
Grundkörper des Kunststoffrahmens 5Basic body of the plastic frame 5
2525
Dichtelementsealing element
2626
U-Schenkel des KunststoffrahmensU-legs of the plastic frame
2727
Dichtnutsealing groove
2828
Dichtabschnittsealing portion
2929
Dichtschafttight shaft
3333
Abstufunggradation
3434
Verbindungsflanschconnection flange
3535
Wandabschnittwall section
3636
Verbindungsbolzenconnecting bolts
3737
Zentrierelementcentering
39, 40, 4139, 40, 41
SpritzgusswerkzeugeInjection molds
4343
Spritzgusskammerinjection chamber
4545
Vorsprunghead Start
4646
Halteabschnittholding section
4747
Formungsflächeforming surface
4949
rillenförmige Ausbuchtunggrooved bulge
aa
Spaltmaßclearance
bb
Höheheight
xx
BautiefenrichtungBautiefenrichtung
Ee
EntformungsebeneEntformungsebene
II
Entformungsrichtungunmolding

Claims (11)

  1. Household appliance, in particular a dishwasher, comprising at least one container (3) for receiving goods to be treated, particularly dishes, comprising a container opening that can be closed by an appliance door (1), associated at least in sections with stiffening means for increasing the rigidity of the container (3) in the region of the container opening, said means comprising at least one centring element (37) by which the appliance door (1) can be aligned to the container opening when the appliance door (1) is closed, characterised in that the stiffening means and the at least one centring element (37) are made of a uniform material and/or embodied in one piece as a plastic profile part, particularly in a plastic injection moulding process.
  2. Household appliance according to claim 1, characterised in that, in the closed position, the appliance door (1) is located between at least two opposite sections of the stiffening means arranged on the container opening.
  3. Household appliance according to claim 2, characterised in that the stiffening means are embodied as frame parts (7) at least partly surrounding the container opening.
  4. Household appliance according to claim 1, 2 or 3, characterised in that the at least one centring element (37) defines a gap dimension (a) between the appliance door and the stiffening means.
  5. Household appliance according to claim 3 or 4, characterised in that, in its closed position, the appliance door (1) is submerged between delimiting sides (19) of the frame parts (7) assigned to each other until it makes sealing contact with the sealing element (25).
  6. Household appliance according to one of the previous claims, characterised in that the centring element (37) is elongated in a depth direction (x) in the form of a strip.
  7. Household appliance according to one of claims 3 to 6, characterised in that the delimiting side (19) of each of the frame parts (7) extends up to a step (33) on which the sealing element (25) sits.
  8. Household appliance according to one of claims 3 to 7, characterised in that the centring element (37) is a protrusion projecting from the frame part (7) which is preferably elongated in a depth direction (x) of the household appliance.
  9. Household appliance according to one of claims 3 to 8, characterised in that the centring element (37) extends up to a section projecting from the delimiting side (19) of the frame part (7), such as the step (33).
  10. Household appliance according to one of the previous claims, characterised in that stiffening means comprise a rigid basic body (24) which encloses the loading opening, and a connecting flange (34) which is connected to the container (3).
  11. Household appliance according to claim 10, characterised in that the centring element (37) is arranged on the basic body (24).
EP09734689.4A 2008-04-25 2009-04-07 Household appliance, particularly dishwasher Active EP2271245B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09734689T PL2271245T3 (en) 2008-04-25 2009-04-07 Household appliance, particularly dishwasher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008020883A DE102008020883A1 (en) 2008-04-25 2008-04-25 Household appliance, in particular dishwasher
PCT/EP2009/054165 WO2009130130A1 (en) 2008-04-25 2009-04-07 Household appliance, particularly dishwasher

Publications (2)

Publication Number Publication Date
EP2271245A1 EP2271245A1 (en) 2011-01-12
EP2271245B1 true EP2271245B1 (en) 2017-06-14

Family

ID=40823515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09734689.4A Active EP2271245B1 (en) 2008-04-25 2009-04-07 Household appliance, particularly dishwasher

Country Status (6)

Country Link
US (1) US8528995B2 (en)
EP (1) EP2271245B1 (en)
CN (1) CN102036597B (en)
DE (1) DE102008020883A1 (en)
PL (1) PL2271245T3 (en)
WO (1) WO2009130130A1 (en)

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USD675792S1 (en) * 2011-03-09 2013-02-05 Bsh Home Appliances Corporation Lighted dishwasher door
EP2749197A1 (en) * 2012-12-27 2014-07-02 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher with a seal between the door and the rinsing chamber
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USD746003S1 (en) * 2013-12-20 2015-12-22 Samsung Electronics Co., Ltd. Dishwasher
USD791418S1 (en) * 2015-08-20 2017-07-04 Electrolux Home Products, Inc. Dishwasher door
IT201900002209A1 (en) * 2019-02-15 2020-08-15 Ilpea Ind Spa GASKET FOR DISHWASHER, DISHWASHER INCLUDING THIS GASKET AND ASSOCIATED ASSEMBLY METHOD

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Also Published As

Publication number Publication date
US8528995B2 (en) 2013-09-10
CN102036597A (en) 2011-04-27
US20110031856A1 (en) 2011-02-10
CN102036597B (en) 2012-11-21
PL2271245T3 (en) 2017-10-31
WO2009130130A1 (en) 2009-10-29
DE102008020883A1 (en) 2009-10-29
EP2271245A1 (en) 2011-01-12

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