EP3237666B1 - Dichtung zur verwendung bei einer waschmaschine - Google Patents

Dichtung zur verwendung bei einer waschmaschine Download PDF

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Publication number
EP3237666B1
EP3237666B1 EP14824487.4A EP14824487A EP3237666B1 EP 3237666 B1 EP3237666 B1 EP 3237666B1 EP 14824487 A EP14824487 A EP 14824487A EP 3237666 B1 EP3237666 B1 EP 3237666B1
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EP
European Patent Office
Prior art keywords
gasket
tongue
ribs
drum
washing machine
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.)
Active
Application number
EP14824487.4A
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English (en)
French (fr)
Other versions
EP3237666A1 (de
Inventor
Ergin METIN
Coskun Filiz
Servet CATALTEPE
Salih YILDIRIM
Bugra CETINKAYA
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.)
Arcelik AS
Original Assignee
Arcelik AS
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Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP3237666A1 publication Critical patent/EP3237666A1/de
Application granted granted Critical
Publication of EP3237666B1 publication Critical patent/EP3237666B1/de
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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26Casings; Tubs
    • D06F37/266Gaskets mounted between tub and casing around the loading opening

Definitions

  • the present invention relates to a laundry washing machine, in particular to a front loading type laundry washing machine.
  • the present invention more particularly relates to the gasket of the front loading type laundry washing machine that leak-tightly seals the tub from the interior of the appliance.
  • a washing machine generally comprises a body, a tub inside the body, a drum which is rotatably disposed into the tub so as to rotate the laundry about a rotational axis, a front door which has an opening for accessing the drum.
  • the drum is connected to the shaft of an electric motor which is located behind the tub.
  • the drum has a loading/unloading aperture which faces the opening of the front door.
  • the tub has an aperture which is usually concentrically arranged with the loading/unloading aperture of the drum. Therefore, the region between the tub and the front door around the opening must be leak-tightly sealed by a gasket.
  • the gasket comprises an annual collar, an outer rim for coupling the annular collar with the periphery of the opening of the front door and an inner rim for coupling the annular collar with the periphery of the aperture of the tub.
  • the tub is generally supported by a damping mechanism.
  • both the tub and the drum are in continual relative motion with respect to the opening of the front door. Therefore, the annular gasket is generally provided with a flexible annular bending section which joins the outer rim and the inner rim and thus, permits relative movement of the tub and absorbs the vibrations.
  • the gasket is generally provided with a radially extending tongue for diverting the laundry away from the region immediately between the drum and the annular collar. Such tongues are commonly referred to as diverters.
  • TR 2003 00616 T1 discloses a washing machine which comprises a gasket having a diverter.
  • a diverter In general, a diverter must be suffiently strong to withstand the thrust of the rotating laundry both during the washing process and the spin-drying process. Therefore, the diverters are usually manufactured as solid rubbers. However, the production of such a diverter is comparatively expensive both in terms of material costs and labor costs.
  • CN 201258404 describes a door seal ring for a drum washing machine which comprises an inner mouthpiece connected with an outer tube, an outer mouthpiece which butts against a glass door, a folding portion between the two mouthpieces, and a stopper.
  • WO 2007/017726 A1 discloses a gasket with a tongue that comprises a rigid kernel.
  • An objective of the present invention is to provide a gasket and a laundry washing machine having the same which overcomes the drawbacks of the prior art in a cost effective way and which enables a sufficient thrust and also gently handles the sensitive laundry.
  • the axially inwardly facing surface of the tongue and the axially outwardly facing surface of the tongue each comprises a plurality of ribs and a plurality of recesses.
  • the ribs on the axially opposite surfaces of the tongue extend respectively away from each other in the axial direction and are substantially parallel to each other in the radial direction.
  • the tongue has been rendered, on the one hand, sufficiently strong to withstand the thrust of the laundry which is particularly made from heavy fabric and, on the other one hand, sufficiently flexible against the laundry which is particularly made from easily tearable fabric.
  • the sensitive laundry can be gently diverted away from the critical region.
  • the risk of occurrence of any rubber traces on the laundry has been eliminated or reduced as much as possible as the contact area of the tongue has been decreased through the provision of the recesses and also as the flexibility of the exposed surface of the tongue has been increased through the provision of the ribs.
  • the diverting function of the tongue has been improved. Thereby, the consumer satisfaction can be increased.
  • the present invention particularly by virtue of the recesses, also the amount of rubber required for the production of the tongue has been comparatively decreased without compromising the resiliency thereof. Thereby, the manufacturing time, in particular the time required for the vulcanization process has also been comparatively shortened. With the present invention, the material costs and the labor costs have been comparatively reduced.
  • the ribs and recesses can be arranged and aligned onto the axially opposite surfaces of the tongue in various different ways within the scope defined by the claims and can assume various different sizes and shapes. Thereby, the resiliency of the tongue can be accurately adjusted in accordance with the thrust of the laundry and the type of the fabric.
  • the ribs and the recesses are arranged so as to alternate.
  • the centers of the ribs on the axially opposite surfaces of the tongue are respectively located either back-to-back or, alternatively shifted with respect to each other such that the centers of the ribs and the centers of the recesses on the axially opposite surfaces of the tongue are respectively located back-to-back.
  • the ribs and the recesses have respectively same or, alternatively different widths.
  • the ribs and the recesses may have rectangular cross sections, v-shaped cross sections, arc-shaped cross sections or the like.
  • the gasket has one or more than one flexible bending section so as to more easily permit relative movement of the tub with respect to the front door.
  • the entire gasket is molded from rubber as a single piece.
  • the tongue is located on the inner periphery of the annular collar, particularly in close proximity to the loading/unloading aperture of the drum and extends a predetermined distance radially across the flange of the drum.
  • the gasket is fixed onto the laundry washing machine such that tongue is located at the top side of the tub aperture and extends radially downwards.
  • the gasket (1) is suitable for use in a front loading type laundry washing machine (2) with the drying function or without the drying function.
  • the front loading type laundry washing machine (2) comprises a body (3), a tub (4) which is disposed into the body (3), a drum (not shown) which is rotatably disposed into the tub (4) about a rotational axis, a front door (5) which has an opening (6) for accessing the drum ( Fig. 1 to 9 ).
  • the gasket (1) comprises a flexible annular collar (7) for leak-tightly sealing the region between the tub (4) and the front door (5) around the opening (6) and a radially extending tongue (8) for diverting the laundry (not shown) inside the drum away from the region immediately between the drum and the annular collar (7).
  • each of the axially inwardly facing surface (9) and the axially outwardly facing surface (10) of the tongue (8) comprises a plurality of ribs (11) and a plurality of recesses (12).
  • the ribs on the axially opposite surfaces of the tongue extend respectively away from each other in the axial direction and are substantially parallel to each other in the radial direction.
  • the laundry washing machine (2) of the present invention comprises the gasket (1) according to the present invention.
  • the plurality of ribs (11) and the plurality of recesses (12) are alternately disposed onto each of the axially inwardly facing surface (9) and the axially outwardly facing surface (10) of the tongue (8).
  • the centers of the ribs (11) on the axially inwardly facing surface (9) of the tongue (8) and the centers of the recesses (12) on the axially outwardly facing surface (10) of the tongue (8) are respectively located back-to-back.
  • the ribs (11) and the recesses (12) have respectively different widths in the transverse direction along which they are alternately arranged ( Fig. 1 to 9 ).
  • the transverse direction is perpendicular to the axial direction, namely the rotational axis of the drum.
  • the widths of the ribs (11) are respectively larger than the widths of the recesses (12) in the transverse direction along which they are alternately arranged.
  • the ribs (11) on the axially inwardly facing surface (9) and the axially outwardly facing surface (10) of the tongue (8) extend respectively in opposing axial directions.
  • the gasket (1) comprises a flexible outer rim (13), a flexible inner rim (14) and one or more than one flexible annular bending sections (16).
  • the flexible outer rim (13) is suitable for coupling the annular collar (7) with the periphery of the opening (6) of the front door (5).
  • the flexible inner rim (14) is suitable for coupling the annular collar (8) with the periphery of an aperture (15) of the tub (4).
  • the flexible annular bending sections (16) serially join the outer rim (13) and the inner rim (14).
  • the annular collar (7), the tongue (8), the ribs (11), the recesses (12), the rims (13, 14) and the bending sections (16) are molded as a single piece gasket (1).
  • the single piece gasket (1) is molded from rubber.
  • the tongue (8) has a size such that it extends a predetermined distance radially across the flange (not shown) of the loading/unloading aperture of the drum when the gasket (1) is assembled with the laundry washing machine (2).
  • the tongue (8) points radially downwards when the gasket (1) is assembled with the laundry washing machine (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Sealing Devices (AREA)

Claims (11)

  1. Eine Dichtung (1) zur Verwendung in einer Frontlader-Waschmaschine (2), umfasst einen Körper (3), eine Wanne (4), die im Körper (3) angeordnet ist, eine Trommel, die um eine Drehachse drehbar in der Wanne (4) angeordnet ist, eine Fronttür (5), die eine Öffnung (6) für den Zugang zur Trommel aufweist, wobei die Dichtung (1) einen flexiblen ringförmigen Kragen (7) zum leckdichten Abdichten des Bereichs zwischen der Wanne (4) und der Fronttür (5) um die Öffnung (6) herum und eine sich radial erstreckende Zunge (8) zum Ableiten der Wäsche im Inneren der Trommel weg von dem Bereich unmittelbar zwischen der Trommel und dem ringförmigen Kragen (7) umfasst, die Dichtung (1) ist dadurch gekennzeichnet, dass die axial nach innen weisende Fläche (9) und die axial nach außen weisende Fläche (10) der Zunge (8) jeweils mehrere Rippen (11) und mehrere Aussparungen (12) aufweisen , wobei sich die Rippen (11) und Aussparungen (12) jeweils in axialer Richtung voneinander weg erstrecken und in radialer Richtung parallel zueinander verlaufen.
  2. Die Dichtung (1), wie in Anspruch 1 aufgeführt, ist dadurch gekennzeichnet, dass die mehreren Rippen (11) und die mehreren Aussparungen (12) abwechselnd jeweils auf der axial nach innen weisenden Fläche (9) und der axial nach außen weisenden Fläche (10) der Zunge (8) angeordnet sind.
  3. Die Dichtung (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass die Mittelpunkte der Rippen (11) auf der axial nach innen weisenden Fläche (9) der Zunge (8) und die Mittelpunkte der Aussparungen (12) auf der axial nach außen weisenden Fläche (10) der Zunge (8) jeweils Rücken an Rücken liegen.
  4. Die Dichtung (1), wie in Anspruch 2 aufgeführt, ist dadurch gekennzeichnet, dass die Mittelpunkte der Rippen (11) auf der axial nach innen weisenden Fläche (9) und der axial nach außen weisenden Fläche (10) der Zunge (8) jeweils Rücken an Rücken liegen.
  5. Die Dichtung (1), wie in einem der Ansprüche 1 bis 4 aufgeführt, ist dadurch gekennzeichnet, dass die Rippen (11) und die Aussparungen (12) in Querrichtung, entlang derer sie abwechselnd angeordnet sind, jeweils unterschiedliche Breiten aufweisen.
  6. Die Dichtung (1), wie in einem der Ansprüche 1 bis 4 aufgeführt, ist dadurch gekennzeichnet, dass die Rippen (11) und die Aussparungen (12) in Querrichtung, entlang derer sie abwechselnd angeordnet sind, jeweils gleiche Breiten aufweisen.
  7. Die Dichtung (1), wie in einem der Ansprüche 1 bis 6 aufgeführt, ist dadurch gekennzeichnet, dass die Dichtung (1) ferner einen flexiblen äußeren Rand (13) zum Verbinden des ringförmigen Kragens (7) mit dem Umfang der Öffnung (6) der Fronttür (5) und einen flexiblen inneren Rand (14) zum Verbinden des ringförmigen Kragens (8) mit dem Umfang der Öffnung (15) der Wanne (4) sowie einen oder mehrere flexible ringförmige Biegeabschnitte (16) umfasst, die den äußeren Rand (13) und den inneren Rand (14) miteinander verbinden.
  8. Die Dichtung (1), wie in Anspruch 7 aufgeführt, ist dadurch gekennzeichnet, dass der ringförmige Kragen (7), die Zunge (8), die Rippen (11), die Aussparungen (12), die Ränder (13, 14) und die Biegeabschnitte (16) aus einem einzigen Stück geformt sind.
  9. Die Dichtung (1), wie in einem der Ansprüche 1 bis 8 aufgeführt, ist dadurch gekennzeichnet, dass die Zunge (8) eine solche Größe hat, dass sie sich um eine vorbestimmte Strecke radial über den Flansch der Be-/Entladeöffnung der Trommel erstreckt, wenn die Dichtung (1) mit der Waschmaschine (2) zusammengebaut ist.
  10. Eine Waschmaschine (2) umfasst einen Körper (3), eine Wanne (4), der im Körper (3) angeordnet ist, eine Trommel, die drehbar in der Wanne (4) angeordnet ist, eine Trommel, die um eine Drehachse drehbar in der Wanne (4) angeordnet ist, eine Fronttür (5), die eine Öffnung (6) für den Zugang zur Trommel aufweist, gekennzeichnet ist sie dadurch, dass die Waschmaschine (2) außerdem eine Dichtung (1) gemäß einem der Ansprüche 1 bis 9 umfasst.
  11. Eine Waschmaschine (2), wie in Anspruch 10 aufgeführt, ist dadurch gekennzeichnet, dass die Dichtung (1) so mit der Waschmaschine (2) zusammengebaut ist, dass die Zunge (8) radial nach unten zeigt.
EP14824487.4A 2014-12-25 2014-12-25 Dichtung zur verwendung bei einer waschmaschine Active EP3237666B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/079342 WO2016102029A1 (en) 2014-12-25 2014-12-25 Gasket for use in a laundry washing machine

Publications (2)

Publication Number Publication Date
EP3237666A1 EP3237666A1 (de) 2017-11-01
EP3237666B1 true EP3237666B1 (de) 2024-02-28

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ID=52292930

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EP14824487.4A Active EP3237666B1 (de) 2014-12-25 2014-12-25 Dichtung zur verwendung bei einer waschmaschine

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EP (1) EP3237666B1 (de)
CN (1) CN107278237B (de)
WO (1) WO2016102029A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180136088A (ko) * 2017-06-14 2018-12-24 주식회사 대우전자 벽걸이형 세탁기 및 그의 도어 개스킷
EP3913129B1 (de) * 2017-08-09 2024-10-02 LG Electronics Inc. Wäschebehandlungsvorrichtung mit einer induktionsheizung
CN110424125B (zh) * 2019-09-02 2025-02-28 珠海格力电器股份有限公司 洗衣机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330137A (en) * 1965-09-09 1967-07-11 Borg Warner Clothes guard for washing machines
WO2002012612A1 (en) 2000-08-07 2002-02-14 Arçelik A.S. A household appliance with an integral diverter
DE202004011470U1 (de) * 2004-07-22 2004-09-23 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsgerät mit einem Wäscheabweiser
ITTO20050117U1 (it) * 2005-08-08 2007-02-09 Indesit Co Spa Macchina lavabiancheria o lavasciuga con dispositivo respingente
EP2441874B1 (de) * 2008-01-14 2018-07-25 Electrolux Home Products Corporation N.V. Waschmaschine mit einem verbesserten Balg
CN201258404Y (zh) * 2008-09-11 2009-06-17 无锡小天鹅通用电器有限公司 滚筒洗衣机门密封圈
TR200909579A2 (tr) * 2009-12-20 2011-07-21 Bsh Ev Aletler� San. Ve T�C. A.�. Önden yüklemeli bir çamaşir makinesi

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Publication number Publication date
CN107278237B (zh) 2020-01-17
EP3237666A1 (de) 2017-11-01
WO2016102029A1 (en) 2016-06-30
CN107278237A (zh) 2017-10-20

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