EP3502341B1 - Machine de traitement du linge - Google Patents

Machine de traitement du linge Download PDF

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Publication number
EP3502341B1
EP3502341B1 EP17210011.7A EP17210011A EP3502341B1 EP 3502341 B1 EP3502341 B1 EP 3502341B1 EP 17210011 A EP17210011 A EP 17210011A EP 3502341 B1 EP3502341 B1 EP 3502341B1
Authority
EP
European Patent Office
Prior art keywords
laundry treatment
handle
treatment machine
finishing
door
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
EP17210011.7A
Other languages
German (de)
English (en)
Other versions
EP3502341A1 (fr
Inventor
Mihail Georgescu
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP17210011.7A priority Critical patent/EP3502341B1/fr
Priority to PL17210011T priority patent/PL3502341T3/pl
Priority to PCT/EP2018/083458 priority patent/WO2019120979A1/fr
Publication of EP3502341A1 publication Critical patent/EP3502341A1/fr
Application granted granted Critical
Publication of EP3502341B1 publication Critical patent/EP3502341B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

Definitions

  • the present invention concerns the field of household appliances, especially laundry treatment machines.
  • the present invention refers to a laundry treatment machine with a door with a movable handle.
  • Laundry treatment machines comprise both "simple" laundry washing machines (i.e. laundry washing machines which can only wash and rinse laundry) and laundry washing-drying machines (i.e. laundry washing machines which can also dry laundry), or drying machines (i.e. drying machines which can dry laundry).
  • Laundry treatment machine refers to simple laundry washing machines, laundry washing-drying machines or drying machines.
  • Laundry treatment machines such as laundry washing machines generally comprise an external casing provided with a washing tub which contains a laundry treatment chamber built as a rotatable perforated drum where the laundry is placed.
  • a loading/unloading door ensures access to the drum.
  • Laundry treatment appliances typically comprise a water supply unit and a products supply unit, preferably a drawer, for the introduction of water and washing/rinsing products (i.e. detergent, softener, rinse conditioner, etc.) into the tub.
  • washing/rinsing products i.e. detergent, softener, rinse conditioner, etc.
  • Known laundry treatment appliances are also provided with water draining devices that may operate during different phases of the washing program to drain the dirty water.
  • a complete treating program typically includes different phases during which the laundry to be washed is subjected to adequate treatments.
  • a treating cycle usually comprises a main washing phase during which the laundry is treated by means of water and a detergent.
  • the water is typically heated to a predetermined temperature based on the washing program selected by the user. It is also possible that hot water is introduced into the tub from the hot water mains.
  • the drum is rotated, so as to apply also a mechanical cleaning action on the laundry.
  • the drum is typically rotated at high rotational speed, in such a way that dirty washing liquid (i.e. water mixed with detergent) is extracted from the laundry, and this dirty washing liquid is drained to the outside by the water draining devices.
  • a combined washer/dryer is built for washing and drying clothes and comprises a laundry treatment chamber which is built as a drying chamber into which the clothes to be dried are introduced.
  • the drying chamber is rotatable supported within a cabinet and made to rotate by means of a driving motor, typically consisting of an electric motor connected to the drying chamber via a belt.
  • the drying chamber usually is a drum, and one or more drying phases are added which typically commence after the washing phases.
  • the drying phase usually involves rotating the drum and applying hot air to the laundry.
  • a door of a laundry treatment machine can be composed of a back frame, a front frame, and a glass part sandwiched between said back and frontal frames; the assembly of said components consists of the structural part of the door.
  • the door can comprise a movable handle associated with a rotatable hook suitable to allow the unlocking of the door from the known locking element provided on the machine, when an associated handle is rotated by the user.
  • the assembly of the handle and the rotatable hook can be provided on the rear frame and / or the outer frame.
  • the EP 0 293 984 A1 discloses a washing machine with a hinged door which comprises a frusto-conical window and an annular frame. A handle and a catch are supported by the annular frame, whereby by operating the handle, the catch is disengaged, thereby unlocking the door.
  • the US 9,003,840 B2 discloses a washing machine with a door which comprises an inner and an outer frame and a transparent port-hole window fitted between the two frames. On the outer frame, a handle is arranged for locking / unlocking the door.
  • the EP 2 740 832 A1 describes a laundry treatment device with a door assembly for closing an aperture in the casing, whereby the door assembly comprises a door frame with a handle.
  • the aim of the invention is to provide a laundry treatment machine which allows the use of door components for several machine models.
  • Another aim of the invention is to provide a flexible composition of functional and aesthetic door components.
  • Another aim of the invention is to provide a door for a laundry treatment machine that is cheap, easy to assemble, maintaining a good aesthetical look.
  • the invention therefore relates to a laundry treatment machine comprising a casing and comprising a laundry treatment chamber arranged in the casing for receiving laundry, the casing comprising an opening which grants access to the laundry treatment chamber, the laundry treatment machine further comprising a door, the door comprising:
  • the invention is based on the consideration that on the one hand the design of laundry treatment machines is an important process which requires providing especially designed machine parts and components. Since the handle and the door are essential components with a strong visual impression on the user, they should fit to the overall design of the machine. On the other hand, from a manufacturing point of view it would be most economic if components such as the door could be used for a series of machines with different overall design.
  • the applicant has found that these demands can be met by providing a closure portion and a finishing portion and provision the handle on the finishing portion. Both portions have, respectively, a dedicated function.
  • the closure portion provides the door function and thereby yields access to the drum for entering and removing laundry. It is therefore predominantly a functional component.
  • the finishing portion is an additional component which has predominantly an aesthetic function.
  • the finishing portion is the component that does not interact with the chamber, because the closure portion itself has the function of actually closing-opening the opening which grants the access to the laundry treatment chamber.
  • the closure portion can be adapted to fit a variety of laundry treatment machines with various designs, while only the aesthetic frame needs to be adapted to the overall design of the machine. Since the handle is an essential and important element for handling the machine, it should also have a design which fits with the design of the overall machine.
  • both handle and finishing portion can be built according to the machine design whereby the closure portion as an essentially functional component can be used for a series of machines. In this way, while the closure portion of the door can be used for different types of machines, only the finishing portion with the handle need to be custom-made to match the design of the specific machine.
  • the closure portion is preferably hinged on the casing.
  • a door hinge is provided which allows a rotation of the door around this hinge for yielding access to the drum.
  • the hinge is preferably arranged at a side of the door which is essentially and preferably opposite to the position of the handle, thereby allowing a strong and convenient leverage for the user when opening the door.
  • the casing preferably is built as a cabinet or comprises a cabinet.
  • the handle is preferably fixed and/or hinged on the finishing portion.
  • a profile of said handle flushes with a profile of said finishing portion in a non-actuated position of said handle. This prevents the user from hitting against edges of the handle while operating the door and additionally yields an aesthetically pleasing look of the machine door.
  • the laundry treatment machine comprises a handle assembly which comprises the handle, a rotatable hook for engagement with a locking structure in the casing in an non-actuated position and at least a spring element which acts on the hook and/or the handle to urge them toward a non-actuated position.
  • the locking structure advantageously comprises a recess in said casing in which said hook engages. In the engaged position, the door is blocked. The door can be opened when the hook is disengaged.
  • a door lock is provided in / behind the recess.
  • the closure portion comprises a frame assembly and the finishing portion comprises at least one frame.
  • the closure portion comprises a front frame and a rear frame; preferably, the rear frame respectively provides a recess which allows an at least partial rotational movement of the hook in an assembled state.
  • the handle is at least partially rotatable arranged on the finishing portion such that the actuation of the handle causes its rotation, moving the hook to a disengaging actuated position, releasing the door from the closed position.
  • the front frame comprises an uncovered area which in assembled state is not covered by the finishing portion. In this way, material for the production of the finishing portion can be reduced.
  • the uncovered area comprises an aesthetically designed surface.
  • the aesthetically designed surface comprises a plurality of curved grooves which provide optically a turbine effect.
  • finishing portion in an assembled state is fixed to the front frame and/or the rear frame.
  • finishing portion is welded to the closure portion.
  • finishing portion is attached to the closure portion by an adhesive connection.
  • the adhesive connection is especially provided by an adhesive / bi-adhesive tape.
  • finishing portion is fixed to the closure portion by a screw and/or snap connection.
  • the finishing portion on its rear side preferably comprises domes which receive screws which are led through openings in the closure portion.
  • the front frame and rear frame are attached to each other by a screw connection, while the finishing portion is attached to the front frame by a snap connection.
  • the handle comprises a finishing look which corresponds to the finishing look of the closure portion.
  • the advantages of the invention are especially as follows.
  • the closure portion can be built for a series / variety of machines.
  • the handle and the finishing portion need to be adapted. This is especially advantageous since the handle reflects a considerable design aspect of the machine. In this way, the number of parts that need to be manufactured for a given variety of machines can be reduced and costs can be saved.
  • FIG. 1 a laundry treatment machine 2 is shown which is built as a front-loading washing machine and comprises a housing or casing 6 with a preferable parallelepiped shape, the casing 6 comprising a front wall 10, two side walls 14, a cover plate 20 and a rear wall (not shown). Front wall 10 and side walls 14 are preferably part of a cabinet.
  • a front door 24 is provided which can be opened for loading or unloading laundry through an opening 28 into a washing drum.
  • Front door 24 comprises a movable handle 32 for convenient opening and closing of the door 24.
  • a washing tub is contained within casing 6, whereby a rotatable and perforated drum is contained by the washing tub.
  • Both washing tub and drum have a substantially cylindrical shape.
  • the tub is suspended in a floating manner inside casing 6 by means of a number of coil springs and shock absorbers.
  • the drum is rotated by an electric motor (not shown), which transmits the rotating motion of a motor shaft to the drum by a belt/pulley system.
  • the motor can be directly associated with the shaft of the drum.
  • the tub is preferable connected to casing 6 by means of an elastic bellows or gasket.
  • the laundry treatment machine 2 can be a dryer (in which case the tub is not provided) or a combined washer and dryer.
  • the preferred washing machine shown in FIG. 1 on a front panel 48 comprises a drawer 30 with a front plate 34 and a handle 44 for pulling out and pushing back the drawer 30.
  • Drawer 30 preferably comprises at least one compartment for detergent or washing additives.
  • a rotatable or rotary knob 38 is arranged for selecting a laundry treatment program and/or at least one parameter of a laundry treatment program.
  • Knob 38 is preferably provided on a control panel 62 or user interface which can provide further indicating and/or control elements.
  • Knob 38 is preferably arranged on front panel 48 adjacent to drawer 30, whereby preferably no user interface elements such as controls (buttons, dials) or indicating elements (displays, lights) are arranged between drawer 30 and knob 38.
  • On control panel 62 user interface elements such as at least one display and/or buttons and/or indicators can be provided.
  • a service hatch 70 is preferably provided on front wall 70 which preferably yields access to a filter unit.
  • the door 24 comprises a closure portion 72 which is mounted on / attached to casing 6 as well as a finishing portion 74.
  • the finishing portions 74 is associated with / attached to closure portion 72. While, as will be explained below, the closure portion 72 serves to open / close the door and obtain access to the drum, the finishing portion 74 provides mainly an aesthetic effect and serves as a carrier element for the handle 32.
  • closure portion 72 comprises a front frame 80 and a back or rear frame 82 as well as a cover portion 84 for covering the opening 28, whereby cover portion 84 or transparent port-hole window is preferably built from a transparent material, especially glass and is preferably built with a bowl-like shape.
  • cover portion 84 or transparent port-hole window is preferably built from a transparent material, especially glass and is preferably built with a bowl-like shape.
  • the front frame 80 is an outer frame and the rear frame 82 is an inner frame which is arranged closer to the casing than front frame 80.
  • the cover portion 84 is preferably arranged in a sandwiched way between front frame 80 and rear frame 82.
  • the front frame 80 comprises an area 88 which in the assembled state is not covered by the finishing portion 74.
  • the area 88 in the present preferred example is designed with a pattern of curved lines / grooves which yields an optical turbine effect.
  • the inner or rear frame 82 is made of glass-filled nylon, i.e., a composite thermoplastic material comprising polyammide (PA) and reinforcing glass fibres (typically, 25% of glass fibres) and having a density higher than pure nylon and a higher heat resistance.
  • the inner or rear frame 80 may be made of polypropylene (PP), i.e. a plastic compound having a high ultimate strength, a low density, a good thermal resistance and a good resistance to abrasions, possibly glass-filled poly-propylene or talc-filled poly-propylene, which may be obtained through any known technique, for example injection moulding or extrusion.
  • PP polypropylene
  • the front frame 80 may be formed in plastic materials, metal or a combination thereof.
  • the front frame 80 may be formed of glass-filled nylon or other composite thermoplastic materials.
  • the rear/front frame can be made of ABS.
  • the finishing portion and preferably the handle can be made of ABS.
  • Laundry treatment machine 2 comprises a handle assembly 90 (see especially FIG. 7 ) which preferably comprises handle 32, a rotatable hook 92 for engagement with a locking structure in casing 6 in an non-actuated position, a spring element 94 which acts on hook 92 to urge it in a not-actuated tensioning position and/or a further spring 140 which acts on handle 32 to urge it toward a non-actuated position, as will be explained below.
  • a recess 102 is preferably provided which allows an at least partial rotational movement of hook 92 in an assembled state.
  • a recess is provided, allowing the passage / partial rotational movement of the hook 92.
  • front frame 80, back frame 82 and finishing portion 74 are displayed in an assembled state.
  • the handle assembly 90 preferably comprises a pin 138 and a hinge element 142.
  • pin 138 is lead through corresponding openings in hook 92, hinge element 142, spring element 94 and the further spring 140.
  • Spring element 94 and the further spring 140 in the preferred shown embodiment are built as torsion springs.
  • spring element 94 is with one end associated to hook 92 and with its other end associated to the handle 32. It serves to push hook 92 into the engaged position, whereby hook 90 engages in a corresponding recess in casing 6 when the door is in its closed position, i.e. it does not grant access to the laundry treatment chamber.
  • the further spring 140 is with one end associated to handle 32 and with its other end associated to the finishing portion 74. It serves to push the handle 32 into the non-actuated position.
  • Catch or hook 92 preferably comprises a leg portion 150 which in the mounted configuration engages with hinge element 142 / handle 32. In this way, when handle 32 is inclined / rotated / turned, hook 92 is rotated and disengaged from the recess in casing 9, thereby unlocking door 24.
  • hook 92 When handle 32 is actuated, hook 92 is rotated into a disengaged / actuated position.
  • the hook 90 is therefore controlled by handle 32 and both the hook and the handle are preferably assembled on the finishing portion 74 in a rotatable manner.
  • all the handle assembly 60 is arranged / assembled on the finishing portion 74.
  • Door 24 is blocked when hook 92 is engaged with the recess in casing 6 and is unblocked when handle 32 is actuated and hook 90 is released from the recess.
  • a door hinge 132 is preferably provided which is preferably mounted to rear frame 82 and to casing 6 to allow a partial rotation of door 24 such that door 24 can be opened and closed for accessing the opening 28.
  • front frame 80 On its rear side, i.e. its side facing the rear frame 82 and which is in the assembled state not visible to the user, front frame 80 preferably comprises several domes 160 into which screws are lead which are guided through corresponding openings in rear frame 82, thereby attaching back frame 82 to front frame.
  • Front frame 80 preferably comprises several domes 160 which receive screws which are lead through both rear frame 82 and front frame 80. Domes 160 preferably have apertures which allow screws 134 to pass through these openings to be screwed into domes arranged at finishing portion 74. Alternatively, the finishing portion 74 can be screwed only to front 80 or to rear frame 82. According to a further additional / alternative embodiment, the front frame 80 can comprise several snap elements which engage with corresponding snap elements which are arranged on corresponding positions on rear side of finishing portion 74.
  • the cover portion 84 comprises a rim 172 which in the assembled state is tightly fitted / sandwiched between front frame 80 and rear frame 82.
  • cover portion 84 is arranged in a sandwiched way between the front frame 80 and the rear frame 82.
  • Front frame 80 and rear frame 82 are preferably fixed to each other by a screw connection.
  • the cover portion 84 in this way is tightly fitted between the two frames 80, 82.
  • rear frame 82 is fixed to front frame 80 by a screw connection, whereby finishing portion 74 is fixed to front frame 80 and / or rear frame 82 by a separate connection, preferably also a screw connection.
  • front frame 80 preferably comprises domes 160 and rear frame 82 corresponding holes.
  • the finishing portion 74 comprises domes which receive screws which are lead through both frames 80, 82. In this way, the number of screws necessary for the assembly of finishing portion 74 and frames 80, 82 can be reduced.
  • the handle assembly 90 is previously attached to finishing portion 74 so that, when the finishing portion is attached to the frames 80, 82, also the handle assembly is consequently assembled on the door.
  • a dedicated finishing portion with a suitable handle assembly (i.e. having the suitable shape, the wished aesthetical combination with the finishing portion) is assembled on the closure portion, the latter preferably comprising the rear frame, the front frame and the cover portion as explained above, said closure portion preferably being a common part for several series/models of machine.
  • the thus assembled door 24 is mounted to a hinge 132 and is attached to the casing 6 of the laundry treatment machine 2 by connecting hinge 132 to the casing 6.
  • the door 24 is at least partially rotatably mounted to casing 6 and can thus be opened and closed.

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

Claims (12)

  1. Machine de traitement du linge (2), comprenant un corps (6) et comprenant une chambre de traitement du linge disposée dans ledit corps (6) pour recevoir du linge, ledit corps (6) comprenant une ouverture (28) qui donne accès à ladite chambre de traitement du linge, ladite machine de traitement du linge (2) comprenant en outre une porte (24), ladite porte comprenant :
    une partie de fermeture (72) ayant pour fonction de fermer ladite ouverture (28), ladite partie de fermeture (72) étant montée sur ledit corps (6) ;
    une partie de finition (74) associée à ladite partie de fermeture (72) ;
    une poignée mobile (32) ayant pour fonction de maintenir ladite porte (24) dans la position fermée lorsqu'elle n'est pas actionnée et de libérer ladite porte (24) de ladite position fermée lorsqu'elle est actionnée, de sorte que ladite poignée (32) est disposée sur ladite partie de finition (74),
    caractérisée en ce que
    ladite partie de fermeture (72) comprend un cadre avant (80) et un cadre arrière (82),
    ledit cadre avant (80) comprend une zone non couverte (88) qui, à l'état assemblé, n'est pas couverte par ladite partie de finition (74), et ladite zone non couverte (88) comprend une surface conçue de manière esthétique.
  2. Machine de traitement du linge (2) selon la revendication 1, un profil de ladite poignée (32) affleurant un profil de ladite partie de finition (74) dans une position non actionnée de ladite poignée (32).
  3. Machine de traitement du linge (2) selon la revendication 1 ou 2 avec un ensemble poignée (90) qui comprend ladite poignée (32), un crochet rotatif (92) pour venir en prise avec une structure de verrouillage dans ledit corps (6) dans une position non actionnée et au moins un élément de ressort (94) qui agit sur ledit crochet rotatif (92) et/ou ladite poignée (32) pour les pousser vers une position non actionnée.
  4. Machine de traitement du linge (2) selon la revendication 3, ladite structure de verrouillage comprenant un évidement dans ledit corps (6) dans lequel ledit crochet rotatif (92) vient en prise.
  5. Machine de traitement du linge (2) selon l'une des revendications 1 à 4, ladite poignée (32) étant au moins disposée partiellement rotative sur ladite partie de finition (74) de sorte que l'actionnement de ladite poignée (32) provoque sa rotation, déplaçant ledit crochet rotatif (92) vers une position actionnée de séparation, libérant ladite porte (24) de la position fermée.
  6. Machine de traitement du linge (2) selon l'une des revendications 1 à 5, ladite surface esthétiquement conçue de ladite zone non couverte (88) comprenant une pluralité de rainures courbes qui fournissent optiquement un effet de turbine.
  7. Machine de traitement du linge (2) selon l'une des revendications 5 et 6, de sorte que ladite partie de finition (74) dans un état assemblé soit fixée audit cadre avant (80) et/ou audit cadre arrière (82).
  8. Machine de traitement du linge (2) selon l'une quelconque des revendications 1 à 7, ladite partie de finition (74) étant soudée à ladite partie de fermeture (72) .
  9. Machine de traitement du linge (2) selon l'une quelconque des revendications 1 à 8, de sorte que ladite partie de finition (74) soit fixée à ladite partie de fermeture (72) par une liaison adhésive.
  10. Machine de traitement du linge (2) selon l'une des revendications 1 à 9, ladite partie de finition (74) étant fixée à ladite partie de fermeture (72) par une liaison à vis et/ou à encliquetage.
  11. Machine de traitement du linge (2) selon la revendication 10, ladite partie de finition (74) sur son côté arrière comprenant des dômes qui reçoivent des vis qui sont conduites à travers des ouvertures dans ladite partie de fermeture (72).
  12. Machine de traitement du linge (2) selon l'une quelconque des revendications précédentes, ladite poignée (32) comprenant un aspect de finition qui correspond à l'aspect de finition de ladite partie de fermeture (72).
EP17210011.7A 2017-12-22 2017-12-22 Machine de traitement du linge Active EP3502341B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17210011.7A EP3502341B1 (fr) 2017-12-22 2017-12-22 Machine de traitement du linge
PL17210011T PL3502341T3 (pl) 2017-12-22 2017-12-22 Urządzenie pralnicze
PCT/EP2018/083458 WO2019120979A1 (fr) 2017-12-22 2018-12-04 Machine de traitement de linge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17210011.7A EP3502341B1 (fr) 2017-12-22 2017-12-22 Machine de traitement du linge

Publications (2)

Publication Number Publication Date
EP3502341A1 EP3502341A1 (fr) 2019-06-26
EP3502341B1 true EP3502341B1 (fr) 2021-12-08

Family

ID=60782036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17210011.7A Active EP3502341B1 (fr) 2017-12-22 2017-12-22 Machine de traitement du linge

Country Status (3)

Country Link
EP (1) EP3502341B1 (fr)
PL (1) PL3502341T3 (fr)
WO (1) WO2019120979A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT210393Z2 (it) 1987-06-02 1988-12-30 Eurodomestici Ind Riunite Oblo' per lavabiancheria e simili avente una controcornice intercambiabile e mezzi atti a garantirne la tenuta anche senza di essa.
EP2405051B1 (fr) 2010-07-06 2014-07-02 Electrolux Home Products Corporation N.V. Fenêtre de hublot en verre pour lave-linge et/ou sèche-linge
DE202011103868U1 (de) * 2011-07-29 2011-09-07 Electrolux Home Products Corporation N.V. Wäschebehandlungsvorrichtung
EP2740832A1 (fr) * 2012-12-06 2014-06-11 Electrolux Home Products Corporation N.V. Dispositif de traitement du linge avec ensemble de porte
CN104372569B (zh) * 2013-08-13 2018-05-11 青岛海尔洗涤电器有限公司 一种滚筒洗衣机的门体及门体组装方法

Also Published As

Publication number Publication date
EP3502341A1 (fr) 2019-06-26
WO2019120979A1 (fr) 2019-06-27
PL3502341T3 (pl) 2022-04-04

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