WO2007115904A1 - Cuve pour machine à laver - Google Patents

Cuve pour machine à laver Download PDF

Info

Publication number
WO2007115904A1
WO2007115904A1 PCT/EP2007/052591 EP2007052591W WO2007115904A1 WO 2007115904 A1 WO2007115904 A1 WO 2007115904A1 EP 2007052591 W EP2007052591 W EP 2007052591W WO 2007115904 A1 WO2007115904 A1 WO 2007115904A1
Authority
WO
WIPO (PCT)
Prior art keywords
tub
pin
section
lug
washing machine
Prior art date
Application number
PCT/EP2007/052591
Other languages
English (en)
Inventor
Ismael Gracia Bobed
Noelia Borque Marquina
Miguel Angel Gomez Caudevilla
Alberto Manas Molina
Eduardo Recio Ferrer
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
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 BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2007115904A1 publication Critical patent/WO2007115904A1/fr

Links

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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • 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
    • D06F37/26—Casings; Tubs
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding

Definitions

  • This invention relates to a plastic tub for a clothes-washing machine, in particular of the domestic type which houses a rotating drum, inside which the washing load is placed; said washing tub consisting of a peripheral, cylindrical housing formed by a tub front-section and a tub rear-section which are joined in order to enclose the drum in its interior by means of plastic fusion welding, and where the front section of the tub features at least one front lug, and the rear section of the tub features at least one rear lug which face each other on closing the tub, and to which a damper is affixed by means of a pin.
  • the majority of the tubs existing on the domestic washing-machine market with moulded plastic washing tubs are joined by means of assembly with clips and/or screws.
  • the joint is carried out by joining, by means of clips, the front section of the tub with the rear section of the tub, which incorporates the internal features, already assembled, such as the drum, the shaft, etc.
  • Document EP 601 347 B1 discloses a washing-machine, or combined washing- and drying-machine, in particular of a domestic type, which comprises a plastic washing tub which houses a rotating drum within which the washing load is placed; said washing tub consisting essentially of a peripheral, cylindrical, integral housing, with a rear wall and a flange-shaped front wall which incorporates protrusions, moulded separately for their subsequent joining to protrusions on the front opening of the tub by means of the fusion welding of the plastic materials of which said protrusions are made. Welding of the tubs is usually carried out by means of placing the flat sides of the protrusions face-to-face.
  • the protrusions of the tub and of the front wall are L-shaped in section, and by means of welding, two edges of the protrusions are mutually joined. The pressure is exerted on both joined edges of the protrusions
  • Welding forms part of the group of permanent joints, but unlike others such as riveting or sticking, it provides certain advantages, such as the speed of manufacture, the high resistance of the joint, and the versatility of the joining process, applicable to a great number of materials and therefore appropriate for polymers or polymer-based compound materials, as is the case with current washing-machine tubs.
  • the dampers are attached directly to the tub by means of a bolt which affixes the projecting damper to a lug formed on one of the plastic parts of the tub, or by means of a stud which goes through both the damper and two lugs formed on the two halves of the tub.
  • the object of this invention is a more solid, more robust method of fixing the damper to the tub, which at the same time is cheaper and its coupling more rapid.
  • a plastic tub for a clothes-washing machine in particular of a domestic type which houses a rotating drum within which the washing load is placed, said washing tub consisting of a peripheral, cylindrical housing, formed by a tub front section and a tub rear section, joined so as to enclose the drum in their interior by means of the fusion welding of the plastic and where the front tub section comprises at least one front lug and the rear tub section features at least one rear lug; said lugs face each other when the tub is closed, and to these a damper is affixed by means of a pin where said pin is formed of a single piece of plastic on one of the lugs and is joined to the other lug by means of plastic fusion welding.
  • the pin and the lug to which it is joined are formed from a single plastic part which includes the front or rear section of the tub. Thus, all of the above are formed as an assembly which may be produced in one moulded plastic piece.
  • the pin is partly hollow, cylindrical in shape and substantially circular in section, in order to facilitate its forming in the plastic manufacturing mould.
  • the pin at the end which is joined to the lug by welding, incorporates a protrusion at its edge which will serve as filler material for the plastic welding process.
  • the damper comprises one closed ring-shaped extremity, through which the pin passes in order to guarantee a robust fixing to the tub.
  • the pin is welded at the same time as when the front and rear sections of the tub are welded together, enclosing the drum in their interior. After positioning the damper, inserting the pin through the same, the front and rear sections of the tub are brought together face-to-face, the respective lugs also being face-to- face, so that during the same plastic welding operation the tub is closed and the damper affixed. This welding occurs at the same time as the two sections which form the tub are joined, an additional step thus being unnecessary.
  • the pin is formed on the rear lug of the tub, as it is into this section that the washing drum is inserted before welding the assembly closed; thus, the rear section of the tub is placed on its closed base, the drum is inserted, its shaft passing through the rear wall, the dampers are placed on the pins, and the front section is positioned, ready for welding.
  • the lugs comprise a through-hole mount to which the damper may be affixed, should the need arise, by means of a pin which will penetrate through all of these, in the event that the machine should require repair including the cutting of the original plastic pin.
  • the welding system is a system of welding by vibration, which is ideal for the joining of the two sections of the tub and the damper. - A -
  • the welding system for welding the pin for the damper would be by ultrasonic vibration, in order to focus upon the exact point of the pin, without having to vibrate all of the housing.
  • Figure 1 Portrays a schematic view of a washing-machine seen from the front.
  • Figure 2. Portrays a detailed exploded view of the damper between the front and rear sections of the tub.
  • Figure 3. Portrays in detail the fixing of the damper on the pin prior to being joined to the front section of the tub.
  • Figure 4. Portrays in detail the joint between the front and rear sections of the tub, with the pin welded.
  • FIG. 1 portrays a schematic view of a washing-machine seen from the front in which the tub 1 is suspended from springs 7 and supported by dampers 6 within a framework. Inside the tub 1 is located a washing drum 2 into which the clothes to be washed are inserted.
  • Figure 2 portrays a detailed exploded view of the damper 6 between the front section 3 and rear section 4 of the tub.
  • the extremity 61 of the damper is ring-shaped and inside the same is located a rubber ring 62 through which the free chamfered end of the pin 5, formed as an extension 51 , is inserted.
  • the cross-sections of the two sections 3 and 4 of the tub are schematically portrayed, through their respective lugs 31 and 41 .
  • the pin 5 protrudes from the lug of the rear section 41 of the tub.
  • FIG. 3 portrays in detail the fixing of the damper 6 on the pin 5 prior to joining the pin 5 to the front section 31 of the tub.
  • Figure 4 portrays in detail the joining of the front section 31 of the tub and the rear section 41 of the tub in the region of the pin 5 where it may be seen that the material of the extremity of the pin 51 has been melted and has produced the joint in this region.
  • the pin 5 has been inserted through the rubber ring 62 in the extremity 61 of the damper 6.
  • the tub 1 is manufactured from plastic by moulding and comprises a peripheral cylindrical housing made from two parts, a tub front section 3 and a tub rear section 4 which are joined along their respective open edges, enclosing the drum 2 in their interior, by means of fusion welding of the plastic materials of the edges, producing a weld bead between the tub front section 3 and the tub rear section 4.
  • the system for closing the same by welding is the system of closure by vibration.
  • the rear section of the tub is first placed so that it rests on its closed base and the drum 2 is inserted into the same.
  • the dampers 6 are then placed on the pins 5 and the open side of the tub front section is placed against the assembly.
  • the welding machine causes the front section to vibrate linearly against the rear section at a very high frequency to a width of two millimetres.
  • the welding causes the material to melt sufficiently for the tub sections to come together by more than one millimetre, thus producing a watertight seal, and the pin 5 to be joined to the lug 31 of the front tub section with equal firmness as it is joined to the lug 41 of the rear tub section.
  • the damper 6 is firmly attached to the tub, with no movement relative to the same except for a swinging movement around the axis of the pin 5.

Landscapes

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

Abstract

L'invention concerne une cuve (1) de machine à laver, en particulier une machine à laver de type domestique comprenant un tambour (2) rotatif, à l'intérieur duquel la charge de lavage est placée, ladite cuve (1) de lavage étant constituée d'un logement cylindrique périphérique formé par une partie avant (3) de cuve et une partie arrière (4) de cuve, ces dernières étant assemblées de manière à entourer le tambour (2) à l'intérieur, grâce à un soudage par fusion du plastique. La partie avant de la cuve comprend au moins un taquet (31) avant et la partie arrière de la cuve comprend au moins un taquet (41) arrière, qui sont opposés lors de la fermeture de la cuve et auxquels un amortisseur (6) est fixé au moyen d'une fiche (5), cette dernière étant formée d'une seule pièce sur un des taquet (31, 41) et associée à l'autre taquet (31, 41) par soudage par fusion du plastique.
PCT/EP2007/052591 2006-04-12 2007-03-19 Cuve pour machine à laver WO2007115904A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200601040 2006-04-12
ES200601040A ES2317729B1 (es) 2006-04-12 2006-04-12 Cuba para maquina lavadora.

Publications (1)

Publication Number Publication Date
WO2007115904A1 true WO2007115904A1 (fr) 2007-10-18

Family

ID=38137734

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/052591 WO2007115904A1 (fr) 2006-04-12 2007-03-19 Cuve pour machine à laver

Country Status (2)

Country Link
ES (1) ES2317729B1 (fr)
WO (1) WO2007115904A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2460924A2 (fr) 2010-12-06 2012-06-06 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fabrication d'une section de tube pour machine à laver
EP2865800A1 (fr) * 2013-10-24 2015-04-29 Electrolux Appliances Aktiebolag Procédé d'assemblage et appareil d'assemblage pour bac de lavage d'une machine à laver
US9212447B2 (en) 2008-07-22 2015-12-15 BSH Bosch und Siemens Hausgeräte GmbH Tub section for a washing machine
KR20190137514A (ko) * 2018-06-01 2019-12-11 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR20200056119A (ko) * 2018-11-14 2020-05-22 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR20200056125A (ko) * 2018-11-14 2020-05-22 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217234A1 (fr) * 1985-09-20 1987-04-08 INDUSTRIE ZANUSSI S.p.A. Amortisseur pour machine à laver
GB2189511A (en) * 1986-04-26 1987-10-28 Faini Spa A drum housing particularly for washing machines
EP0601347B1 (fr) * 1992-12-07 1997-01-22 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Amélioration dans les cuves plastiques pour machines à laver
EP0854223A2 (fr) * 1997-01-21 1998-07-22 Balay S.A. Dispositif de fermeture pour cuve en plastique de machine à laver
EP0933463A1 (fr) * 1998-02-02 1999-08-04 Balay S.A. Dispositif pour fixer un amortisseur à la cuve d'une machine à laver
WO2005071156A1 (fr) * 2004-01-27 2005-08-04 Suspa Holding Gmbh Dispositif d'articulation destine a articuler un amortisseur a friction d'un lave-linge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217234A1 (fr) * 1985-09-20 1987-04-08 INDUSTRIE ZANUSSI S.p.A. Amortisseur pour machine à laver
GB2189511A (en) * 1986-04-26 1987-10-28 Faini Spa A drum housing particularly for washing machines
EP0601347B1 (fr) * 1992-12-07 1997-01-22 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Amélioration dans les cuves plastiques pour machines à laver
EP0854223A2 (fr) * 1997-01-21 1998-07-22 Balay S.A. Dispositif de fermeture pour cuve en plastique de machine à laver
EP0933463A1 (fr) * 1998-02-02 1999-08-04 Balay S.A. Dispositif pour fixer un amortisseur à la cuve d'une machine à laver
WO2005071156A1 (fr) * 2004-01-27 2005-08-04 Suspa Holding Gmbh Dispositif d'articulation destine a articuler un amortisseur a friction d'un lave-linge

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9212447B2 (en) 2008-07-22 2015-12-15 BSH Bosch und Siemens Hausgeräte GmbH Tub section for a washing machine
EP2460924A2 (fr) 2010-12-06 2012-06-06 BSH Bosch und Siemens Hausgeräte GmbH Procédé de fabrication d'une section de tube pour machine à laver
EP2865800A1 (fr) * 2013-10-24 2015-04-29 Electrolux Appliances Aktiebolag Procédé d'assemblage et appareil d'assemblage pour bac de lavage d'une machine à laver
KR20190137514A (ko) * 2018-06-01 2019-12-11 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
US11193231B2 (en) * 2018-06-01 2021-12-07 Lg Electronics Inc. Washing machine and tub for washing machine
KR102531717B1 (ko) * 2018-06-01 2023-05-11 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR20200056119A (ko) * 2018-11-14 2020-05-22 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR20200056125A (ko) * 2018-11-14 2020-05-22 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR102627974B1 (ko) * 2018-11-14 2024-01-23 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기
KR102627978B1 (ko) * 2018-11-14 2024-01-23 엘지전자 주식회사 세탁기의 터브 및 이를 구비한 세탁기

Also Published As

Publication number Publication date
ES2317729B1 (es) 2010-02-11
ES2317729A1 (es) 2009-04-16

Similar Documents

Publication Publication Date Title
EP2013399B1 (fr) Bac pour machine à laver
WO2007115904A1 (fr) Cuve pour machine à laver
KR101440664B1 (ko) 세탁기용 바스켓 조립체
RU2008103192A (ru) Дверца бытового электроприбора, в частности стиральной, стиральной/сушильной или сушильной машины для одежды с фронтальной или в основном с фронтальной загрузкой
EP2318582B1 (fr) Procédé de fabrication d'une section de cuve pour machine à laver
JPH06205889A (ja) プラスチック製洗濯槽を有する洗濯機
US20130026895A1 (en) Washing machine having enhanced coupling structure and control method of the same
US20050028568A1 (en) Externally supported lye tank
WO2006052071A2 (fr) Moteur a transmission directe pour machine a laver
EP2420606B1 (fr) Moteur pour machine à laver et machine à laver dotée de celui-ci
KR102511238B1 (ko) 세탁기의 밸런스 웨이트 장착구조 및 밸런스 웨이트 장착장치
US8490441B2 (en) Washing machine
US20040148980A1 (en) Damper and washing machine having the same
KR20110023203A (ko) 자동차 도어트림의 열융착 조립구조
RU2435887C2 (ru) Усовершенствованный способ сборки модуля барабан/бак стиральной машины
CN107385763B (zh) 洗衣机
EP2865800A1 (fr) Procédé d'assemblage et appareil d'assemblage pour bac de lavage d'une machine à laver
KR101424557B1 (ko) 드럼세탁기 및 드럼세탁기의 도어
EP3378983B1 (fr) Assemblage de paliers pour le tambour d'une machine à laver
US10487435B2 (en) Tub for a laundry washing machine
AU2005200971B2 (en) A driving unit for a drum type washing machine
KR20000073302A (ko) 모우터의 로터 제조방법
EP2551396B1 (fr) Machine à laver
KR101419798B1 (ko) 베어링 하우징 및 그 제조방법
KR101176124B1 (ko) 세탁기 터브의 진동용착장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07727068

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07727068

Country of ref document: EP

Kind code of ref document: A1