EP1408150A1 - System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner - Google Patents

System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner Download PDF

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Publication number
EP1408150A1
EP1408150A1 EP20020425602 EP02425602A EP1408150A1 EP 1408150 A1 EP1408150 A1 EP 1408150A1 EP 20020425602 EP20020425602 EP 20020425602 EP 02425602 A EP02425602 A EP 02425602A EP 1408150 A1 EP1408150 A1 EP 1408150A1
Authority
EP
European Patent Office
Prior art keywords
door
opening system
sliding
support structure
contact surface
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
EP20020425602
Other languages
English (en)
French (fr)
Other versions
EP1408150B1 (de
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Candy SpA filed Critical Candy SpA
Priority to DE60228718T priority Critical patent/DE60228718D1/de
Priority to EP02425602A priority patent/EP1408150B1/de
Publication of EP1408150A1 publication Critical patent/EP1408150A1/de
Application granted granted Critical
Publication of EP1408150B1 publication Critical patent/EP1408150B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention relates to an opening and closing system for washing and/or drying machines of the front-loading type.
  • washing machines of the front-loading type possess a support and containment structure having a front wall provided with an aperture for the loading and unloading of the laundry.
  • the said loading aperture is closed in a leaktight manner by a door fixed to the said front wall.
  • the known opening and closing systems for washing machines are subdivided into two main groups: systems having a hinged door and systems having a sliding door.
  • the opening and closing of the loading aperture takes place by means of the movement of the door in accordance with the principle of a leaf-type door, with the disadvantage of being very space consuming at the front in the open position and requiring substantial space for the movement of the said door.
  • washing machines of the known art expose, in the open state, structural parts which normally face towards the interior of the domestic electrical appliance and which should not be accessible to the user. These structural parts may be very hot and soaked with washing liquid, or angular and therefore dangerous or at least annoying.
  • the door is fixed to the support structure of the domestic electrical appliance, for example by means of rocking levers, in a manner such as to produce a translatory movement of the door, which, in order to achieve reliable closing of the loading aperture, comprises, during opening, an initial phase of moving away and, during closing, a final phase of moving towards the front wall of the washing machine.
  • Such systems having a sliding door although less bulky than the systems having a hinged door, comprise very complex and costly mechanisms for moving the door and also prove to be somewhat weak, and unsatisfactory from an aesthetic standpoint.
  • an opening and closing system for washing and/or drying machines of the type comprising a support structure and a tub/basket assembly provided with a loading aperture, wherein the said opening system comprises a rim which defines the said loading aperture and a door attached to the said support structure in a manner fixed in rotation and slidable between an open position, which permits access to the loading aperture, and a closed position, in which a contact surface of the door adheres to the said rim, closing the loading aperture in a leaktight manner, wherein the said contact surface and the rim are substantially parallel and inclined relative to the direction of sliding of the door.
  • Figure 1 is a schematic frontal view of a first embodiment of the system according to the invention.
  • Figure 2 is a schematic frontal view of a second embodiment of the system according to the invention.
  • Figure 3 is a view in section along the line III-III in Figure 2, showing only certain details of the system according to the invention
  • Figure 4 is a view in section along the line IV-IV in Figure 2, showing only certain details of the system according to the invention
  • Figure 5 is a view in section along the line V-V in Figure 1, which shows a further embodiment of the invention.
  • a washing or drying machine especially a washing machine of the front-loading type, is designated as a whole by 1.
  • the said washing-machine 1 comprises a support structure 2, a tub/basket assembly (not shown in the figures) provided with a loading aperture 3, and an opening and closing system for opening and closing the said loading aperture 3, hereinafter referred to as an opening system.
  • the said opening system comprises a rim which defines the loading aperture 3 and a door 5 attached to the said support structure 2 in a manner fixed in rotation and slidable between an open position (shown in broken lines in Figure 3), which permits access to the loading aperture 3, and a closed position, in which a contact surface 6 of the door 5 adheres to the said rim, closing the loading aperture 3 in a leaktight manner.
  • the abovementioned rim is formed by a seal 4 which surrounds the loading aperture 3.
  • the contact surface 6 and the seal 4 are substantially parallel and inclined relative to the direction of sliding S of the door 5, in a manner such as to produce, in the closed position, an inclined and leaktight end-of-travel stop, ensured by pressure of the said contact surface 6 against the seal 4 which is substantially uniform and dependent upon the sliding position of the door 5.
  • the contact surface 6 forms an angle of between 1° and 10°, preferably 4°, with the direction of sliding S of the door 5.
  • the sliding path (or, in other words, the direction of sliding S) of the door 5 is substantially rectilinear, preferably parallel relative to a front wall 7 of the support structure 2.
  • the door 5 advantageously comprises a plate 8 which is substantially flat and inclined relative to the direction of sliding S, and whose surface facing the interior of the support structure 2 forms the said contact surface 6.
  • the said plate 8 is produced from glass or plexiglass and preferably possesses a substantially rectangular or square shape.
  • the door 5 comprises a plate of glass or the like supported by a frame or framework element, which is advantageously but not necessarily formed by an internal portion, applied to the internal surface of the said glass plate, and an external portion, applied to the external surface of the glass plate, wherein the said internal and external portions are connected to one another in order to form the said frame of the door.
  • suitable sliding members are provided, preferably wheels 10 or alternatively sliding tongues or the like, fixed to the door 5 at two opposite lateral sides 9, 9' and capable of sliding along suitable sliding guides 11, 11' associated with the support structure 2.
  • each of the two opposite lateral sides 9, 9' of the door 5 is provided with, respectively, two sliding members, in particular wheels 10, spaced apart in the direction of sliding S and slidingly supported by, respectively, two parallel sliding guides 11, 11'.
  • the distance between the sliding members 10 in the direction of sliding S is substantially equal to the diameter of the loading aperture 3, in a manner such as to obtain a regular support of the door 5 at four points.
  • the door 5 additionally possesses an external surface 12 facing the exterior of the support structure 2 and substantially parallel to the said front wall 7.
  • non-functional spaces resulting from the arrangement and orientation of the retention and sliding planes may be freely used to give the domestic electrical appliance any aesthetic form desired.
  • the wheels 10, 10' are fixed to the door 5 in a manner such as to lie in a plane that is inclined relative to the said contact surface 6, wherein the inclination of the plane of the wheels 10, 10' relative to the contact surface 6 corresponds to the inclination of the contact surface 6 relative to the direction of sliding S.
  • This permits the use of a single plane of sliding, produced, for example, by means of the abovementioned two parallel sliding guides 11 and 11'.
  • the sliding members in particular sliding tabs, may be disposed in a manner such as to lie in a plane parallel or identical to the contact surface 6, wherein the inclination of the contact surface 6 relative to the direction of sliding S is produced by means of different sliding planes for the upper and for the lower sliding members.
  • the sliding guides 11, 11' comprise two parallel rectilinear profiles having a U-shaped or C-shaped cross-section, capable of slidingly supporting the said sliding members 10 and 10'.
  • the sliding guides 11, 11' are connected to the support structure 2, preferably to the front wall 7, in a manner such as to extend laterally on two opposite sides of the loading aperture 3 and, preferably, parallel relative to the said front wall 7.
  • a further embodiment, reproduced for example in Figure 5, envisages that the front wall 7 comprises a cover panel 13 provided with an aperture 14 in alignment with the loading aperture 3, and that the door 5 is disposed between the said cover panel 13 and the tub/basket assembly (not shown in the figures) in a manner such that, in the open position, the door 5 is at least partially covered by the cover panel 13 and, in the closed position, the door 5 is disposed in alignment with the said aperture 14.
  • the said cover panel 13 may be a component of the washing machine 1, for example the front wall 7 or part thereof, or a part of the closing system, capable of being associated with the support structure 2 in general or with the front wall 7 in particular.
  • the external surface 12 of the door 5 is parallel to and so far as possible aligned with the external surface of the cover panel 13 to produce, in the closed position, a front external surface of the washing machine 1 which is substantially smooth and continuous.
  • a collecting tank (not shown in the figures) is provided, disposed between the said cover panel 13 and the tub/basket assembly and below the loading aperture 3 and the door 5, to collect washing liquid which has dripped from the contact surface 6 or any other leakages of washing liquid.
  • automatic actuation means are provided, preferably an electric motor 15 connected to the door 5 by means of a flexible cable or belt 16, for actuating the said door 5.
  • the said automatic actuation means comprise hydraulic or pneumatic lifting cylinders.
  • braking means are provided, capable of braking and/or damping the said sliding movement of the door 5 between the closed position and the open position.
  • the said braking means advantageously comprise one or more weights 17, connected to the door 5 by means of a flexible cable 18 passed around a pulley 19, in a manner such as to exert a force in the direction of sliding S opposed to the gravitational force of the door 5.
  • these weights are configured in a manner such that the door 5 is in equilibrium in any intermediate position between the said open and closed positions, requiring a minimal effort on the part of the user to move the door 5.
  • the flexible, cables 16 and 18 advantageously, but not necessarily, extend within the sliding guides 11, 11'.
  • the seal 4 possesses an internal surface 29 which is substantially abrasion-resistant, and defines, together with the contact surface 6 of the door 5, an additional space 20 for the laundry to be washed.
  • the contact surface 6 could be curved towards the exterior of the support structure 2.
  • the said curvature applies only to the zone of the contact surface 6 within the sealing zone as such.
  • the portion of the door 5 intended to be placed over the loading aperture 3 is produced as a substantially transparent window and, even more advantageously, the portion of the door 5 intended to be placed over the seal 4 is produced as a substantially opaque frame.
  • the plate 8 itself comprises a substantially transparent central portion which functions as a window, and an opaque peripheral zone, which is for examples painted or polished or roughened, on the surface opposite the contact surface 6, which functions as a frame.
  • the door 5 is disposed in the closed position and the seal 4 adheres to the contact surface 6 of the door 5 by means of a substantially uniform circumferential pressure, depending on the final sliding position of the said door 5.
  • the door 5 is locked in the said closed position by means of locking means 24 (shown schematically in Figures 1 and 2), for example a hook, associated with the door 5, which engages, preferably by snap fitting, with a counter-hook of the support structure 2, fixed, for example, to the front wall 7.
  • locking means 24 shown schematically in Figures 1 and 2
  • a hook associated with the door 5, which engages, preferably by snap fitting, with a counter-hook of the support structure 2, fixed, for example, to the front wall 7.
  • the washing programme keeps a door-locking system activated, which prevents the disengagement of the locking means and, consequently, any opening movement of the door 5.
  • the locking means are disengaged, for example by means of an opening button 21 disposed in a control panel 22 of the washing machine, and the door 5 slides from the closed position into the open position, by virtue of the force of gravity or by means of automatic actuation means, for example by means of the electric motor 15, or manual actuation means, for example by means of a handle 21 disposed on the external surface 12 of the door 5.
  • the sliding movement of the door 5 is advantageously controlled by means of the counterweights 17 or other braking or damping and balancing means.
  • the said contact surface 6 disengages and moves away from the seal 4 with the sliding of the door 5 towards its open position, without even minimally increasing the frontal space occupation of the washing machine 1. It is particularly advantageous to incline the loading aperture 3 with the seal 4 downwards and, consequently, the contact surface 6 of the door 5 upwards, allowing a downward opening movement of the door 5, assisted by the force of gravity, and a closing movement thereof against the said force of gravity, which is therefore very easy to control.
  • the door 5 slides in the space between the cover panel 13 and the tub/basket assembly.
  • the closing of the loading aperture 3 takes place in a similar manner, with the door 5 being pulled from the open position into the closed position, in which it is locked, preferably by snap fitting, by means of the abovementioned locking means 24.
  • the seal 4 possesses such a thickened portion 23 in the part thereof facing the open position of the door 5, in particular in the lower part.
  • the opening and closing system according to the present invention possesses numerous advantages.
  • the space requirement of the washing machine 1 equipped with the present opening system is greatly reduced, and does not vary during the movement of the door 5. This allows a gain of space which can be used, for example, to increase the volume of the tub/basket assembly of the washing machine.
  • the opening system according to the present invention is very pleasing aesthetically, very simple structurally and particularly strong, and ensures optimum retention as a result of the regular support of the door at four points.
  • the opening system according to the invention has been described and illustrated with reference to a washing machine, but it can be equally advantageously applied to dishwashers, tumble dryers and cooking ovens comprising a support structure 2 and a loading or access aperture 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP02425602A 2002-10-07 2002-10-07 System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner Expired - Lifetime EP1408150B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE60228718T DE60228718D1 (de) 2002-10-07 2002-10-07 System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner
EP02425602A EP1408150B1 (de) 2002-10-07 2002-10-07 System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425602A EP1408150B1 (de) 2002-10-07 2002-10-07 System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner

Publications (2)

Publication Number Publication Date
EP1408150A1 true EP1408150A1 (de) 2004-04-14
EP1408150B1 EP1408150B1 (de) 2008-09-03

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EP02425602A Expired - Lifetime EP1408150B1 (de) 2002-10-07 2002-10-07 System zum Öffnen und Schliessen für Waschmaschinen und/oder Trockner

Country Status (2)

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EP (1) EP1408150B1 (de)
DE (1) DE60228718D1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673443B1 (ko) 2004-10-22 2007-01-24 엘지전자 주식회사 세탁물 처리장치
KR100673444B1 (ko) * 2004-10-22 2007-01-24 엘지전자 주식회사 세탁물 처리장치
KR100747529B1 (ko) 2005-12-02 2007-08-08 엘지전자 주식회사 드럼 세탁기 및 그 제어방법
EP1949843A1 (de) * 2007-01-29 2008-07-30 International Steel Co. SpA Sicherheitsvorrichtung für das Sperrteil von Wasch-, Hitzedesinfektions-, Sterilisierungs-, Konservierungs-, Tiefkühl- und Heizmaschinen o.ä.
US7490496B2 (en) 2004-10-22 2009-02-17 Lg Electronics Inc. Drum washing machine with vertically openable and closable door
EP2316998A1 (de) * 2009-10-30 2011-05-04 Whirlpool Corporation Waschmaschine
EP2434046A1 (de) * 2010-09-23 2012-03-28 Electrolux Home Products Corporation N.V. Waschmaschine
RU2447212C2 (ru) * 2007-02-23 2012-04-10 Электролюкс Хоум Продактс Корпорейшн Н.В. Электрический прибор с усовершенствованным дверным механизмом
WO2018059265A1 (en) * 2016-09-30 2018-04-05 Midea Group Co., Ltd. An appliance with a retractable and slidable door
EP3409824A1 (de) * 2017-05-30 2018-12-05 Bonferraro S.p.A. Waschvorrichtung mit schiebetür mit einer vorrichtung zum sammeln und entleeren des von der tür tropfenden wassers
CN113123089A (zh) * 2020-01-10 2021-07-16 博西华电器（江苏）有限公司 衣物处理设备

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105088706A (zh) * 2015-06-30 2015-11-25 无锡小天鹅股份有限公司 洗涤组件
US11208750B2 (en) 2018-12-29 2021-12-28 Whirlpool Corporation Laundry appliance with a deflector
US11377772B2 (en) 2019-05-23 2022-07-05 Whirlpool Corporation Laundry appliance
US11761134B2 (en) 2019-05-23 2023-09-19 Whirlpool Corporation Laundry appliance
CN117888337A (zh) 2019-05-23 2024-04-16 惠而浦公司 洗衣设备
EP4223921A1 (de) * 2022-02-04 2023-08-09 Electrolux Professional Laundry France SNC Waschmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738458A1 (de) * 1997-09-03 1999-03-04 Aeg Hausgeraete Gmbh Vorrichtung zum Zuhalten einer axial verschiebbaren Ofenmuffeltür
WO2002012613A1 (en) * 2000-08-09 2002-02-14 Arçelik A. S. Washing machine with a loading door that can be opened by a sliding and translatory motion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738458A1 (de) * 1997-09-03 1999-03-04 Aeg Hausgeraete Gmbh Vorrichtung zum Zuhalten einer axial verschiebbaren Ofenmuffeltür
WO2002012613A1 (en) * 2000-08-09 2002-02-14 Arçelik A. S. Washing machine with a loading door that can be opened by a sliding and translatory motion

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100673443B1 (ko) 2004-10-22 2007-01-24 엘지전자 주식회사 세탁물 처리장치
KR100673444B1 (ko) * 2004-10-22 2007-01-24 엘지전자 주식회사 세탁물 처리장치
US7490496B2 (en) 2004-10-22 2009-02-17 Lg Electronics Inc. Drum washing machine with vertically openable and closable door
KR100747529B1 (ko) 2005-12-02 2007-08-08 엘지전자 주식회사 드럼 세탁기 및 그 제어방법
EP1949843A1 (de) * 2007-01-29 2008-07-30 International Steel Co. SpA Sicherheitsvorrichtung für das Sperrteil von Wasch-, Hitzedesinfektions-, Sterilisierungs-, Konservierungs-, Tiefkühl- und Heizmaschinen o.ä.
RU2447212C2 (ru) * 2007-02-23 2012-04-10 Электролюкс Хоум Продактс Корпорейшн Н.В. Электрический прибор с усовершенствованным дверным механизмом
EP2316998A1 (de) * 2009-10-30 2011-05-04 Whirlpool Corporation Waschmaschine
EP2434046A1 (de) * 2010-09-23 2012-03-28 Electrolux Home Products Corporation N.V. Waschmaschine
WO2018059265A1 (en) * 2016-09-30 2018-04-05 Midea Group Co., Ltd. An appliance with a retractable and slidable door
US10105032B2 (en) 2016-09-30 2018-10-23 Midea Group Co., Ltd. Appliance with a retractable and slidable door
EP3409824A1 (de) * 2017-05-30 2018-12-05 Bonferraro S.p.A. Waschvorrichtung mit schiebetür mit einer vorrichtung zum sammeln und entleeren des von der tür tropfenden wassers
CN113123089A (zh) * 2020-01-10 2021-07-16 博西华电器（江苏）有限公司 衣物处理设备

Also Published As

Publication number Publication date
EP1408150B1 (de) 2008-09-03
DE60228718D1 (de) 2008-10-16

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