EP0212259B1 - Composite structure tub for a washing machine of the radial-loading type - Google Patents

Composite structure tub for a washing machine of the radial-loading type Download PDF

Info

Publication number
EP0212259B1
EP0212259B1 EP86109781A EP86109781A EP0212259B1 EP 0212259 B1 EP0212259 B1 EP 0212259B1 EP 86109781 A EP86109781 A EP 86109781A EP 86109781 A EP86109781 A EP 86109781A EP 0212259 B1 EP0212259 B1 EP 0212259B1
Authority
EP
European Patent Office
Prior art keywords
circumferential wall
tub
wall
end walls
tub according
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.)
Expired
Application number
EP86109781A
Other languages
German (de)
French (fr)
Other versions
EP0212259A2 (en
EP0212259A3 (en
Inventor
Dino Piai
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi 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
Priority claimed from IT45727/85A external-priority patent/IT1187287B/en
Priority claimed from IT3408385U external-priority patent/IT209168Z2/en
Application filed by Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Priority to AT86109781T priority Critical patent/ATE41181T1/en
Publication of EP0212259A2 publication Critical patent/EP0212259A2/en
Publication of EP0212259A3 publication Critical patent/EP0212259A3/en
Application granted granted Critical
Publication of EP0212259B1 publication Critical patent/EP0212259B1/en
Expired legal-status Critical Current

Links

Images

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
    • D06F37/261—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
    • 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
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/263—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements assembled from at least two elements connected to each other; Connecting or sealing 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
    • D06F37/26—Casings; Tubs
    • D06F37/266—Gaskets mounted between tub and casing around the loading opening

Definitions

  • the present invention relates to a tub for a laundry washing machine with a drum mounted for rotation about a horizontal axis and adapted to be loaded from above, that is, through the circumferential walls of the drum and the tub.
  • tubs for washing machines of a composite structure consisting of metal and plastic components to thereby combine the advantages of the mechanical strength of the metal components with the advantages of the sealing capability and resistance to corrosion typical for plastic components.
  • tubs of this type are usually of an undesirably complicated construction.
  • a composite tub having a relatively simple structure is described for instance in GB-PS 1,555,746.
  • this tub is formed of a circumferential wall of a plastic material sealingly cooperating with two disc-shaped end walls made of metal.
  • the various components are secured to one another by means of tension bolts extending between the two end walls.
  • the heater elements for heating the washing liquid are disposed in proximity to the circumferential wall of the tub, that is, close to a plastic component which should be protected against overheating.
  • This entails the necessity of providing the machine with suitable electric circuits or similar safety components for ensuring adequate protection of the tub against overheating.
  • the overall construction of the machine becomes undesirably complicated.
  • the reliable assembly of the circumferential wall with the end walls requires the employ of separate fastener means, specifically, tension bolts, the elimination of which would result in a desirable simplification of the construction.
  • a tub for a washing machine having a circumferential wall formed with a loading opening and sealingly connected to a pair of opposite substantially disc-shaped end walls incorporating respectable support bearings for a drum mounted for rotation about a substantially horizontal axis.
  • This tub is basically characterized in that the circumferential wall is made of metal while the two end walls are made of a plastic material. Preferably at least one of the end walls is circumferentially welted to the respective rim of the circumferential wall.
  • Figure 1 shows an axial sectional view of the tub according to the invention, in combination with various operating components of a washing machine
  • Figures 2 and 3 show on an enlarged scale respective details of the tub of Figure 1 in a preferred embodiment.
  • a tub is substantially composed of a circumferential wall 1 made of a metal, preferably stainless steel, the opposite rims of which sealingly cooperate with respective disc-shaped end walls 2 and 3 made of a plastic material and incorporating bearings 4 and 5, respectively, for rotatably supporting a horizontal shaft 6 of a washing drum 7.
  • the top portion of circumferential wall 1 is provided with a loading opening 13 given access to the interior of drum 7 after opening a loading hatch 14.
  • Drum 7 is adapted to be rotated by a driving motor 15 secured to end walls 2 and 3 by means of a support bracket 19.
  • the driving power of motor 15 is transmitted by a belt 16 cooperating with a pulley 17 fixedly secured to shaft 6 at the side of the tub corresponding to end wall 2.
  • end wall 2 is formed with an offset rim portion 8 which is secured to the respective rim of circumferential wall 1 by means of bolts 9 or the like, with the interposition of a sealing gasket 10.
  • end wall 3 is preferably formed with a rim portion 11 of increased wall thickness along which it is welted to the respective rim of circumferential wall 1, with a sealing gasket 12 interposed therebetween.
  • the welt is executed with a relatively great radius to thereby minimize the stress occurring in circumferential wall 1 at the location of the welt connection.
  • Sealing gasket 12 is accommodated in a groove 20 of rim portion 11 and is elastically compressed in the radial direction by an annular bead 21 formed in circumferential wall 1 adjacent the respective rim.
  • Bead 21 is preferably formed simultaneously with the welting of circumferential wall 1 onto end wall 3.
  • sealing gasket 12 by annular bead 21 ensures a liquid-tight seal between the metallic circumferential wall 1 and plastic end wall 3 irrespective of the different thermal expansion coefficient of the two components, even when the tub is subjected to relatively high thermal loads.
  • elastic compression of sealing gasket 20 compensates any tolerances and/or imperfections of the contact surfaces between circumferential wall 1 and end wall 3.
  • the welt-connected end wall 3 is preferably likewise provided with an integrally formed annular outer rim portion 22.
  • Annular rim portion 22 projects radially outwards and is formed with seats 23 or the like adapted to receive fastener means 24 for securing operating components of the machine.
  • the annular outer rim portion 22 may thus be used for instance for securing thereto bracket 19 for supporting motor 15, brackets for the suspension of the tub by means of resilient elements, friction shock absorber plates and the like. Annular rim portion 22 may additionally be used for securing thereto a per se known device for tensioning transmission belt 16.
  • the tub according to the invention offers various advantages deriving from the above explained characteristics.
  • the incorporation of bearings 4, 5 in the plastic end walls 2 and 3, respectively, results in a structural continuity between the bearings and circumferential wall 1.
  • the latter has the only function of containing the washing liquid and is not subjected to any substantial mechanical stress, so that it can be made of stainless steel sheet of minimum thickness.
  • circumferential wall 1 being made of metal, does not present any overheating problems otherwise resulting from the operation and the conventional positioning of the heater elements (not shown for the sake of clarity).
  • the metallic circumferential wall 1 acts as the only support element for end walls 2 and 3, without the necessity of tension bolts or the like.
  • the end walls being made of a plastic material, are particularly suited for incorporating in a per se known manner various functional elements such as means for anchoring the suspension springs of the laundering assembly, pressure sensing outlets for pressure switches, support means for equilibration weights 18, and the like.
  • Pulley 17 may thus be disposed adjacent end wall 3, so that the opposite end wall 2 can be readily dismounted for giving access to the interior of the tub.
  • the bolts 9 securing end wall 2 to circumferential wall 1 may be replaced by an annular channel- section clamping member.

Landscapes

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

Abstract

A tub for a washing machine comprises a circumferential metal wall (1) formed with a loading opening (13) and sealingly cooperating with opposite disc-shaped end walls (2,3) made of a plastic material. The end walls incorporate respective support bearings (4,5) for a drum (7) mounted for rotation about a horizontal axis (6). One end wall (3) is preferably circumferentially welted to the rim of the circumferential wall (1).

Description

  • The present invention relates to a tub for a laundry washing machine with a drum mounted for rotation about a horizontal axis and adapted to be loaded from above, that is, through the circumferential walls of the drum and the tub.
  • Already known are tubs for washing machines of a composite structure consisting of metal and plastic components to thereby combine the advantages of the mechanical strength of the metal components with the advantages of the sealing capability and resistance to corrosion typical for plastic components. In practice, however, tubs of this type are usually of an undesirably complicated construction.
  • A composite tub having a relatively simple structure is described for instance in GB-PS 1,555,746. Basically this tub is formed of a circumferential wall of a plastic material sealingly cooperating with two disc-shaped end walls made of metal. The various components are secured to one another by means of tension bolts extending between the two end walls.
  • This solution also presents a number of shortcomings. In the conventional manner, the heater elements for heating the washing liquid are disposed in proximity to the circumferential wall of the tub, that is, close to a plastic component which should be protected against overheating. This entails the necessity of providing the machine with suitable electric circuits or similar safety components for ensuring adequate protection of the tub against overheating. As a result, the overall construction of the machine becomes undesirably complicated. Moreover, the reliable assembly of the circumferential wall with the end walls requires the employ of separate fastener means, specifically, tension bolts, the elimination of which would result in a desirable simplification of the construction.
  • It is thus an object of the present invention to provide a tub for a washing machine of the radial- loading type having a composite structure including components of different materials, to result in a particularly rational and reliable construction and notably simplified assembly.
  • This object is attained according to the invention by a tub for a washing machine having a circumferential wall formed with a loading opening and sealingly connected to a pair of opposite substantially disc-shaped end walls incorporating respectable support bearings for a drum mounted for rotation about a substantially horizontal axis.
  • This tub is basically characterized in that the circumferential wall is made of metal while the two end walls are made of a plastic material. Preferably at least one of the end walls is circumferentially welted to the respective rim of the circumferential wall.
  • The characteristics and advantages of the invention will become more clearly evident from the following description, given by way of example with reference to the accompanying drawings, wherein:
  • Figure 1 shows an axial sectional view of the tub according to the invention, in combination with various operating components of a washing machine,
  • Figures 2 and 3 show on an enlarged scale respective details of the tub of Figure 1 in a preferred embodiment.
  • With reference to Figure 1, a tub is substantially composed of a circumferential wall 1 made of a metal, preferably stainless steel, the opposite rims of which sealingly cooperate with respective disc- shaped end walls 2 and 3 made of a plastic material and incorporating bearings 4 and 5, respectively, for rotatably supporting a horizontal shaft 6 of a washing drum 7. In a per se known manner, the top portion of circumferential wall 1 is provided with a loading opening 13 given access to the interior of drum 7 after opening a loading hatch 14. Drum 7 is adapted to be rotated by a driving motor 15 secured to end walls 2 and 3 by means of a support bracket 19. The driving power of motor 15 is transmitted by a belt 16 cooperating with a pulley 17 fixedly secured to shaft 6 at the side of the tub corresponding to end wall 2.
  • In particular, and also with reference to Figure 2, end wall 2 is formed with an offset rim portion 8 which is secured to the respective rim of circumferential wall 1 by means of bolts 9 or the like, with the interposition of a sealing gasket 10.
  • With reference to Figure 3, end wall 3 is preferably formed with a rim portion 11 of increased wall thickness along which it is welted to the respective rim of circumferential wall 1, with a sealing gasket 12 interposed therebetween. In this context, it is to be noted that the welt is executed with a relatively great radius to thereby minimize the stress occurring in circumferential wall 1 at the location of the welt connection.
  • Sealing gasket 12 is accommodated in a groove 20 of rim portion 11 and is elastically compressed in the radial direction by an annular bead 21 formed in circumferential wall 1 adjacent the respective rim. Bead 21 is preferably formed simultaneously with the welting of circumferential wall 1 onto end wall 3.
  • The elastic compression of sealing gasket 12 by annular bead 21 ensures a liquid-tight seal between the metallic circumferential wall 1 and plastic end wall 3 irrespective of the different thermal expansion coefficient of the two components, even when the tub is subjected to relatively high thermal loads. In addition, the elastic compression of sealing gasket 20 compensates any tolerances and/or imperfections of the contact surfaces between circumferential wall 1 and end wall 3.
  • Similar to the bolted end wall 2, the welt-connected end wall 3 is preferably likewise provided with an integrally formed annular outer rim portion 22.
  • Annular rim portion 22 projects radially outwards and is formed with seats 23 or the like adapted to receive fastener means 24 for securing operating components of the machine.
  • The annular outer rim portion 22 may thus be used for instance for securing thereto bracket 19 for supporting motor 15, brackets for the suspension of the tub by means of resilient elements, friction shock absorber plates and the like. Annular rim portion 22 may additionally be used for securing thereto a per se known device for tensioning transmission belt 16.
  • The tub according to the invention offers various advantages deriving from the above explained characteristics. In particular, the incorporation of bearings 4, 5 in the plastic end walls 2 and 3, respectively, results in a structural continuity between the bearings and circumferential wall 1. The latter has the only function of containing the washing liquid and is not subjected to any substantial mechanical stress, so that it can be made of stainless steel sheet of minimum thickness. On the other hand, circumferential wall 1, being made of metal,, does not present any overheating problems otherwise resulting from the operation and the conventional positioning of the heater elements (not shown for the sake of clarity).
  • At the same time, the metallic circumferential wall 1 acts as the only support element for end walls 2 and 3, without the necessity of tension bolts or the like.
  • On the other hand, the end walls, being made of a plastic material, are particularly suited for incorporating in a per se known manner various functional elements such as means for anchoring the suspension springs of the laundering assembly, pressure sensing outlets for pressure switches, support means for equilibration weights 18, and the like.
  • The described washing tub may obviously undergo numerous modifications. Pulley 17 may thus be disposed adjacent end wall 3, so that the opposite end wall 2 can be readily dismounted for giving access to the interior of the tub. Likewise, the bolts 9 securing end wall 2 to circumferential wall 1 may be replaced by an annular channel- section clamping member.

Claims (6)

1. A tub for a washing machine having a circumferential wall formed with a loading opening and sealingly connected to a pair of substantially disc-shaped end walls incorporating respective support bearings for a drum mounted for rotation about a substantially horizontal axis, characterized in that said circumferential wall (1) is made of metal while the two end walls (2,3) are made of a plastic material.
2. A tub according to Claim 1, characterized in that said circumferential wall (1) is formed with at least one annular bead (21) adjacent its end for resiliently compressing a sealing gasket (12) interposed between said circumferential wall and a respective end wall (3) connected thereto as by welting.
3. A tub according to Claim 1, characterized in that said welt-connected end wall (3) comprises an integrally formed substantially annular rim portion (22) projecting radially therefrom and formed with seat means (23) adapted to receive fastener means (24) for securing operating components (25, 26) of the machine.
4. A tub according to Claim 1, characterized in that at least one of said end walls (2, 3) is circumferentially welted to the rim of said circumferential wall (1).
5. A tub according to Claim 1, characterized in that each of said support bearings (4, 5) is incorporated in a respective one of said plastic end walls (2, 3).
6. A tub according to Claim 1, characterized in that said welt-connected end wall (3) comprises an enlarged rim portion adapted to cooperate with the rim of said metallic circumferential wall (1
EP86109781A 1985-07-16 1986-07-16 Composite structure tub for a washing machine of the radial-loading type Expired EP0212259B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109781T ATE41181T1 (en) 1985-07-16 1986-07-16 SOLUTION CONTAINER WITH STRUCTURE MADE OF DIFFERENT MATERIALS FOR TOP LOADING WASHING MACHINE.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT4572785 1985-07-16
IT45727/85A IT1187287B (en) 1985-07-16 1985-07-16 Washing machine tub
IT3408385U 1985-10-18
IT3408385U IT209168Z2 (en) 1985-10-18 1985-10-18 TANK WITH COMBINED STRUCTURE FOR WASHING MACHINE WITH LOADING FROM THE COAT.

Publications (3)

Publication Number Publication Date
EP0212259A2 EP0212259A2 (en) 1987-03-04
EP0212259A3 EP0212259A3 (en) 1987-10-21
EP0212259B1 true EP0212259B1 (en) 1989-03-08

Family

ID=26328983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109781A Expired EP0212259B1 (en) 1985-07-16 1986-07-16 Composite structure tub for a washing machine of the radial-loading type

Country Status (4)

Country Link
EP (1) EP0212259B1 (en)
AT (1) ATE41181T1 (en)
DE (1) DE3662282D1 (en)
ES (1) ES2000513A6 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8156770B2 (en) 2002-12-27 2012-04-17 Lg Electronics, Inc. Drum type washing machine
US8220294B2 (en) 2005-09-30 2012-07-17 Lg Electronics Inc. Drum-type washing machine
US8429938B2 (en) 2004-07-20 2013-04-30 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272913A (en) * 1992-11-26 1994-06-01 Caradon Rolinx Tub for a top-loading washing machine
EP2305874B1 (en) 2002-12-27 2017-08-23 LG Electronics Inc. Drum type washing machine
US7536882B2 (en) 2006-03-29 2009-05-26 Lg Electronics Inc. Drum type washing machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1067355B (en) * 1976-08-02 1985-03-16 Eurodomestici Ind Riunite TANK FOR WASHING MACHINE

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8156770B2 (en) 2002-12-27 2012-04-17 Lg Electronics, Inc. Drum type washing machine
US8887537B2 (en) 2002-12-27 2014-11-18 Lg Electronics Inc. Drum-type washing machine
US8646292B2 (en) 2002-12-27 2014-02-11 Lg Electronics Inc. Drum type washing machine
US8616027B2 (en) 2002-12-27 2013-12-31 Lg Electronics Inc. Drum type washing machine
US8302434B2 (en) 2002-12-27 2012-11-06 Lg Electronics Inc. Drum-type washing machine
US8322170B2 (en) 2002-12-27 2012-12-04 Lg Electronics Inc. Drum-type washing machine
US8336340B2 (en) 2002-12-27 2012-12-25 Lg Electronics Inc. Drum-type washing machine
US8336339B2 (en) 2002-12-27 2012-12-25 Lg Electronics Inc. Drum type washing machine
US8341983B2 (en) 2002-12-27 2013-01-01 Lg Electronics Inc. Drum-type washing machine
US8387421B2 (en) 2002-12-27 2013-03-05 Lg Electronics Inc. Drum-type washing machine
US8429938B2 (en) 2004-07-20 2013-04-30 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8434334B2 (en) 2004-07-20 2013-05-07 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8677787B2 (en) 2004-07-20 2014-03-25 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8726702B2 (en) 2004-07-20 2014-05-20 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8783072B2 (en) 2004-07-20 2014-07-22 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8800326B2 (en) 2004-07-20 2014-08-12 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8887538B2 (en) 2004-07-20 2014-11-18 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8931312B2 (en) 2004-07-20 2015-01-13 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US8234890B2 (en) 2005-09-30 2012-08-07 Lg Electronics Inc. Drum-type washing machine
US8225628B2 (en) 2005-09-30 2012-07-24 Lg Electronics Inc. Drum-type washing machine
US8671718B2 (en) 2005-09-30 2014-03-18 Lg Electronics Inc. Drum-type washing machine
US8220294B2 (en) 2005-09-30 2012-07-17 Lg Electronics Inc. Drum-type washing machine

Also Published As

Publication number Publication date
DE3662282D1 (en) 1989-04-13
ATE41181T1 (en) 1989-03-15
EP0212259A2 (en) 1987-03-04
ES2000513A6 (en) 1988-03-01
EP0212259A3 (en) 1987-10-21

Similar Documents

Publication Publication Date Title
US4635780A (en) Clutch disc for a motor vehicle friction clutch
EP0212259B1 (en) Composite structure tub for a washing machine of the radial-loading type
EP1580312A2 (en) Integrated suspension system of a tub assembly in a laundry washing machine
CA1151695A (en) Self-damping bellows seal assembly
US3477259A (en) Domestic washing machines
US4602176A (en) Means for and method of reducing vibration of noise between a dynamoelectric machine and its application
GB2272913A (en) Tub for a top-loading washing machine
EP0132805B1 (en) Stainless steel tub for a laundry washing machine
US5483756A (en) Clothes dryer with horizontally rotatably supported drum
US4597131A (en) Mounting for motor-fan unit
GB2297588A (en) Air duct sealing in a laundry drier
US5269496A (en) Air spring having an elastomeric air-spring flexible member
EP0681185B1 (en) A sensor and sealing unit for a rolling bearing
EP0129769B1 (en) Washing tub for a laundry washing machine
GB2313715A (en) Noise damping mounting of washing machine motor
US20030072510A1 (en) Shaft suspension system for drive shafts of motor vehicles
US7454928B2 (en) Multi-component isolation damping system for a laundry washing machine
US2865689A (en) Shaft bearing
EP0144679B1 (en) Drum for laundry washing machine
US2707088A (en) Vibration damping system for automatic washers and the like
US2964192A (en) Liquid centrifugal balancer
US6062049A (en) Laundry washing or drying machine with shaft integrated in drum gable
US2926136A (en) Tub mounting assembly
EP0214510B1 (en) Laundry washing machine
FI77521C (en) Support wheel assembly for a household appliance, especially a washing machine.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: INDUSTRIE ZANUSSI S.P.A.

17P Request for examination filed

Effective date: 19880329

17Q First examination report despatched

Effective date: 19880802

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 41181

Country of ref document: AT

Date of ref document: 19890315

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3662282

Country of ref document: DE

Date of ref document: 19890413

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19890731

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19900611

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900614

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19900615

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19900619

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19900626

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19900627

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19900731

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19910716

Ref country code: AT

Effective date: 19910716

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19910717

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19910731

Ref country code: CH

Effective date: 19910731

Ref country code: BE

Effective date: 19910731

BERE Be: lapsed

Owner name: INDUSTRIE ZANUSSI S.P.A.

Effective date: 19910731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19920201

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940609

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19940627

Year of fee payment: 9

EUG Se: european patent has lapsed

Ref document number: 86109781.4

Effective date: 19920210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050716