EP0725179A1 - Vorrichtung zum Vermeiden der Unwucht einer Waschmaschinetrommel - Google Patents

Vorrichtung zum Vermeiden der Unwucht einer Waschmaschinetrommel Download PDF

Info

Publication number
EP0725179A1
EP0725179A1 EP96100061A EP96100061A EP0725179A1 EP 0725179 A1 EP0725179 A1 EP 0725179A1 EP 96100061 A EP96100061 A EP 96100061A EP 96100061 A EP96100061 A EP 96100061A EP 0725179 A1 EP0725179 A1 EP 0725179A1
Authority
EP
European Patent Office
Prior art keywords
drum
hollow bodies
washing machine
assemblies
clothes washing
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
EP96100061A
Other languages
English (en)
French (fr)
Other versions
EP0725179B1 (de
Inventor
Piero Durazzani
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 Zanussi SpA
Original Assignee
Electrolux Zanussi Elettrodomestici 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 Electrolux Zanussi Elettrodomestici SpA filed Critical Electrolux Zanussi Elettrodomestici SpA
Publication of EP0725179A1 publication Critical patent/EP0725179A1/de
Application granted granted Critical
Publication of EP0725179B1 publication Critical patent/EP0725179B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
    • D06F37/22—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a horizontal axis
    • D06F37/225—Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets

Definitions

  • the present invention refers to a clothes washing machine, in particular of the household type, provided with a washload holding drum that has an improved dynamic balancing arrangement.
  • the present invention substantially consists in providing a plurality of annular hollow bodies having different diameters and containing a respective plurality of movable balancing weights, in subdividing said plurality of hollow bodies into two distinct assemblies, and in applying the hollow bodies of each such assembly against a respectivebase of the cylinder formed by the drum, the hollow bodies of each such assembly being therefore substantially coplanar with each other and coaxial with the axis of the drum.
  • a washload holding drum made preferably of metal and of a generally per sè known type, which substantially consists of a rigid structure formed by a cylindrical peripheral mantle 1 and two bases 2 and 3, one of which carries the spider member and the related shaft 4, while the other one forms the loading opening 5.
  • each one of such bases a respective assembly 6, 7 is applied, which is formed by a corresponding plurality of distinct hollow bodies 8, such as this is shown in Figure 1.
  • a second improvement as illustrated in Figures 6 and 7, relies on the fact that the hollow bodies comprised in at least one of said assemblies are provided by joining together two substantially symmetrical parts 9, 10, each one of which is formed by a plurality of co-planar, concentric circular grooves 11 that are open toward the same side in an orthogonal direction with respect to the co-planarity plane.
  • Such grooves are appropriately and partially filled with movable balancing masses whose weight, size, shape and distribution can be freely selected by anyone skilled in the art in accordance with the desired results and the acceptable extent of trade-offs.
  • said two complementary parts 9, 10 are joined together to form a single member.
  • the hollow bodies of said assemblies are contiguous, in the sense that the outer periphery of the inner annular hollow body substantially coincides with the inner periphery of the adjoining outer annular hollow body.
  • said hollow bodies are separated from each other by a single common intermediate wall.
  • each one of said brackets is applied on to the outer cylindrical surface of the drum with a parallel orientation with respect to the axis thereof, while their respective gripping members 16 are caused to engage, thanks to their claw-like configuration, against corresponding pairs of frontally opposing sectors that are respectively arranged on the outer edges 18 of said assemblies 6, 7.
  • said brackets form the mutual clamping members of said assemblies, while not actually engaging the drum in any structural manner, so as to avoid passing on to it the stresses deriving from the attachment of said assemblies and, therefore, putting any resulting mechanical load on to it.
  • engaging elements 18 in view of boosting the stability of said brackets it is advantageous for engaging elements 18 to be provided which protrude from their intermediate zone and are capable of engaging the underlying surface of the drum without passing on any excessive or unbalanced strain to it.
  • a manufacturability improvement is furthermore obtained if the parts making up each assembly are made in a single-piece or integral construction and are then joined, upon insertion of the movable balancing weights, using a specular assembly technique.
  • a further optimization of the present invention refers to the possible integration of the inner parts of said assemblies 6, 7 with the drum which they are associated with.
  • Such an integration enables considerable advantages of a constructional and economic nature to be obtained and consists in making, using readily available techniques, both the drum and the inner parts of said assemblies formed by the related hollow bodies in a single-piece or integral construction.
  • such an improvement is implemented through the use of an appropriate plastic material that is adapted to be processed for making both the drum and said assemblies, thereby further giving the opportunity of avoiding the presence and the assembly of the afore cited brackets, with resulting considerable advantages in terms of costs and constructional simplification.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Centrifugal Separators (AREA)
EP96100061A 1995-02-01 1996-01-04 Vorrichtung zum Vermeiden der Unwucht einer Waschmaschinentrommel Expired - Lifetime EP0725179B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1995PN000006U IT238832Y1 (it) 1995-02-01 1995-02-01 Lavabiancheria con cesto antisbilanciamento perfezionato
ITPN950006U 1995-02-01

Publications (2)

Publication Number Publication Date
EP0725179A1 true EP0725179A1 (de) 1996-08-07
EP0725179B1 EP0725179B1 (de) 2000-07-05

Family

ID=11394984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96100061A Expired - Lifetime EP0725179B1 (de) 1995-02-01 1996-01-04 Vorrichtung zum Vermeiden der Unwucht einer Waschmaschinentrommel

Country Status (6)

Country Link
EP (1) EP0725179B1 (de)
JP (1) JPH08252391A (de)
CA (1) CA2168385A1 (de)
DE (1) DE69609090T2 (de)
ES (1) ES2150023T3 (de)
IT (1) IT238832Y1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887457A2 (de) * 1997-06-26 1998-12-30 Samsung Electronics Co., Ltd. Verfahren und Vorrichtung zum Austreiben von Wasserrückständen einer Auswuchtvorrichtung in einer Waschmaschine
EP0887146A2 (de) * 1997-06-26 1998-12-30 Samsung Electronics Co., Ltd. Vorrichtung zum Spenden von Kugeln
EP0781882B2 (de) † 1995-12-28 2005-08-10 Samsung Electronics Co., Ltd. Trommelmaschine mit Auswuchtvorrichtungen
EP1605088A2 (de) * 2004-06-09 2005-12-14 Lg Electronics Inc. Trommelwaschmaschine und dazugehörige Trommel
US7568366B2 (en) 2004-07-20 2009-08-04 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
EP3828329A1 (de) * 2006-06-01 2021-06-02 Samsung Electronics Co., Ltd. Waschmaschine mit ausgleichsregler

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2314749A3 (de) 2002-12-27 2013-01-09 LG Electronics Inc. Trommelwaschmaschine
KR100464054B1 (ko) 2002-12-27 2005-01-03 엘지전자 주식회사 일체형 캐비넷/터브를 구비한 드럼 세탁기
KR100651853B1 (ko) 2005-09-30 2006-12-01 엘지전자 주식회사 인서트사출형 베어링하우징조립체 및 이를 구비한캐비넷/터브 일체형 드럼세탁기
US7841220B2 (en) 2005-09-30 2010-11-30 Lg Electronics Inc. Drum-type washing machine
US7536882B2 (en) 2006-03-29 2009-05-26 Lg Electronics Inc. Drum type washing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1213067A (fr) * 1957-11-08 1960-03-29 Frame Machine à laver
DE1912481U (de) * 1961-07-24 1965-03-18 Siemens Elektrogeraete Gmbh Einrichtung zum schleudern von wasche mit elastischer aufhaengung des trommelaggregats.
DE2746989A1 (de) * 1976-10-20 1978-04-27 Hitachi Ltd Trommelwaschmaschine
FR2393097A1 (fr) * 1977-06-02 1978-12-29 Hitachi Ltd Machine a laver electrique du type a tambour et entierement automatique
EP0607678A1 (de) * 1992-12-28 1994-07-27 Whirlpool Corporation Auswuchtvorrichtung für eine automatische Waschmaschine
WO1995020702A1 (en) * 1994-01-28 1995-08-03 Electrolux Zanussi Elettrodomestici S.P.A. Improvement in the dynamic balancing arrangement of a clothes washing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1213067A (fr) * 1957-11-08 1960-03-29 Frame Machine à laver
DE1912481U (de) * 1961-07-24 1965-03-18 Siemens Elektrogeraete Gmbh Einrichtung zum schleudern von wasche mit elastischer aufhaengung des trommelaggregats.
DE2746989A1 (de) * 1976-10-20 1978-04-27 Hitachi Ltd Trommelwaschmaschine
FR2393097A1 (fr) * 1977-06-02 1978-12-29 Hitachi Ltd Machine a laver electrique du type a tambour et entierement automatique
EP0607678A1 (de) * 1992-12-28 1994-07-27 Whirlpool Corporation Auswuchtvorrichtung für eine automatische Waschmaschine
WO1995020702A1 (en) * 1994-01-28 1995-08-03 Electrolux Zanussi Elettrodomestici S.P.A. Improvement in the dynamic balancing arrangement of a clothes washing machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0781882B2 (de) † 1995-12-28 2005-08-10 Samsung Electronics Co., Ltd. Trommelmaschine mit Auswuchtvorrichtungen
EP0887457A2 (de) * 1997-06-26 1998-12-30 Samsung Electronics Co., Ltd. Verfahren und Vorrichtung zum Austreiben von Wasserrückständen einer Auswuchtvorrichtung in einer Waschmaschine
EP0887146A2 (de) * 1997-06-26 1998-12-30 Samsung Electronics Co., Ltd. Vorrichtung zum Spenden von Kugeln
EP0887457A3 (de) * 1997-06-26 1999-06-09 Samsung Electronics Co., Ltd. Verfahren und Vorrichtung zum Austreiben von Wasserrückständen einer Auswuchtvorrichtung in einer Waschmaschine
EP0887146A3 (de) * 1997-06-26 1999-10-06 Samsung Electronics Co., Ltd. Vorrichtung zum Spenden von Kugeln
CN1090262C (zh) * 1997-06-26 2002-09-04 三星电子株式会社 从滚筒洗衣机球配重稳定器中排除残留水份的方法和装置
EP1605088A2 (de) * 2004-06-09 2005-12-14 Lg Electronics Inc. Trommelwaschmaschine und dazugehörige Trommel
EP1605088A3 (de) * 2004-06-09 2007-06-27 Lg Electronics Inc. Trommelwaschmaschine und dazugehörige Trommel
US7568366B2 (en) 2004-07-20 2009-08-04 Lg Electronics Inc. Drum-type washing machine and bearing housing structure thereof
US7607326B2 (en) 2004-07-20 2009-10-27 Lg Electronics Inc. Drum type washing machine and bearing housing structure thereof
EP3828329A1 (de) * 2006-06-01 2021-06-02 Samsung Electronics Co., Ltd. Waschmaschine mit ausgleichsregler

Also Published As

Publication number Publication date
ITPN950006V0 (it) 1995-02-01
JPH08252391A (ja) 1996-10-01
DE69609090D1 (de) 2000-08-10
DE69609090T2 (de) 2001-03-15
ES2150023T3 (es) 2000-11-16
EP0725179B1 (de) 2000-07-05
CA2168385A1 (en) 1996-08-02
ITPN950006U1 (it) 1996-08-01
IT238832Y1 (it) 2000-11-15

Similar Documents

Publication Publication Date Title
EP0725179B1 (de) Vorrichtung zum Vermeiden der Unwucht einer Waschmaschinentrommel
US5345792A (en) Balancer for an automatic washer
EP1770199B1 (de) Lagergehäusevorrichtung für Trommelwaschmaschine und Trommelwaschmaschine mit derselben
US5746069A (en) Clothes washing machine having upper and lower dynamic balancers
US8671718B2 (en) Drum-type washing machine
EP0808934A2 (de) Waschmaschine
KR100513033B1 (ko) 하부 발란서가 구비된 세탁기
EP2435620B1 (de) Waschmaschine
WO2009027407A1 (en) A washing machine
EP0810318A1 (de) Waschmaschine
CN102301058A (zh) 洗衣机
EP0926290B1 (de) Waschmaschine mit Verankerungsvorrichtung für den Laugenbehälter
WO1999050495A1 (en) Balancing device usable in washing machines
JPH0739679A (ja) 自動洗濯機
WO2006072907A1 (en) A washer/dryer
KR100273366B1 (ko) 세탁기의 원심균형조절장치
EP3899124A1 (de) Wäschewaschtrockner mit einem behälter mit verbesserter mechanischer festigkeit
JP4049842B2 (ja) 衝撃および振動を減衰する機能を備えた洗濯機のベースに関する改良
EP3957790B1 (de) Waschmaschine mit einem laugenbehälter mit rippen
EP0926291B1 (de) Waschmaschine mit Verankerungsvorrichtung für den Laugenbehälter
JPH04187192A (ja) 洗濯機
EP0029516B1 (de) Trommel für Waschmaschine
KR0140077Y1 (ko) 전자동 세탁기의 밸런서
CN113227482A (zh) 滚筒洗衣机
KR19990052649A (ko) 세탁기의 원심균형조절장치

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: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19970115

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

Owner name: ELECTROLUX ZANUSSI S.P.A.

17Q First examination report despatched

Effective date: 19981023

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

ITF It: translation for a ep patent filed

Owner name: PROPRIA S.R.L.

17Q First examination report despatched

Effective date: 19981023

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 69609090

Country of ref document: DE

Date of ref document: 20000810

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2150023

Country of ref document: ES

Kind code of ref document: T3

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
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: FR

Payment date: 20021209

Year of fee payment: 8

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

Ref country code: GB

Payment date: 20021212

Year of fee payment: 8

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

Ref country code: DE

Payment date: 20021213

Year of fee payment: 8

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

Ref country code: SE

Payment date: 20021230

Year of fee payment: 8

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

Ref country code: ES

Payment date: 20030114

Year of fee payment: 8

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

Ref country code: GB

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

Effective date: 20040104

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

Ref country code: SE

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

Effective date: 20040105

Ref country code: ES

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

Effective date: 20040105

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

Ref country code: DE

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

Effective date: 20040803

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040104

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

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

Effective date: 20040930

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: 20050104

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040105