EP0357900B1 - Washing machine with a washing agent dispenser - Google Patents

Washing machine with a washing agent dispenser Download PDF

Info

Publication number: EP0357900B1
Authority: EP; European Patent Office
Prior art keywords: water; compartment; holes; washing; washing machine
Prior art date: 1988-09-06
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 - Lifetime

Application number

EP89111967A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0357900A2 (en

EP0357900A3 (en

Inventor

Pietro Rizzetto

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.)

1988-09-06

Filing date

1989-06-30

Publication date

1994-05-04

1989-06-30 Application filed by Industrie Zanussi SpA filed Critical Industrie Zanussi SpA

1990-03-14 Publication of EP0357900A2 publication Critical patent/EP0357900A2/en

1991-02-20 Publication of EP0357900A3 publication Critical patent/EP0357900A3/en

1994-05-04 Application granted granted Critical

1994-05-04 Publication of EP0357900B1 publication Critical patent/EP0357900B1/en

2009-06-30 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000005406 washing Methods 0.000 title claims description 18
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
239000000126 substance Substances 0.000 claims description 10
239000003599 detergent Substances 0.000 description 10
239000000843 powder Substances 0.000 description 5
230000008901 benefit Effects 0.000 description 2
238000009987 spinning Methods 0.000 description 2
239000004753 textile Substances 0.000 description 2
230000032258 transport Effects 0.000 description 2
238000009825 accumulation Methods 0.000 description 1
230000009471 action Effects 0.000 description 1
230000002411 adverse Effects 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000007599 discharging Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000007788 liquid Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
230000008569 process Effects 0.000 description 1
230000009897 systematic effect Effects 0.000 description 1
230000003245 working effect Effects 0.000 description 1

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
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/02—Devices for adding soap or other washing agents

Definitions

the washing machines currently produced normally dispose of different cycles for washing, or more generally, for treating the textiles introduced. These cycles differ both in terms of the type of treatment to which the textile is to be subjected (washing, rinsing, spinning, etc.) and in terms of the working properties of each individual cycle (e.g. the parameters of temperature, duration, spinning, addition of prewashing, etc., may vary for the washing cycle).
each operating cycle is composed of several successive phases, and each phase may involve an admission of water into the vessel and the corresponding introduction of a particular substance necessary for the specific type of treatment started.
these substances may be in either a liquid state or a powder state, and it is also known that these substances may be contained in separate compartments formed, for convenient use, in one pull-out drawer. It is also known that when this drawer is closed the various compartments are positioned below means for distributing and conveying water so that the water is discharged from these means by falling or by pressure or by the combined action of both, penetrates into the individual compartments mixing with the substances contained therein and transports them away to the inside of the vessel.
Type 1 is the simplest and original one. It consists of one water conduit coming from the water network directly (or via a solenoid valve, a means acting as a flow separator and a "jump in the air" for standard requirements) and opening in the vicinity of the center of the corresponding compartment.
a particularly important phenomenon occurring in this case is the accumulation on the side walls of the compartment which normally do not become wet and to which the detergent already sticks after a few washing cycles.
Type 2 again consists of a conduit which transports the water but this conduit, instead of discharging the water from one nozzle more or less in the middle of the compartment, is disposed along and above the vertical walls delimiting the compartment and is provided with a series of holes which discharge the water above and along the walls.
Type 3 no longer consists of a water conduit extending above the walls of the compartment, but involves a conduit which opens into a horizontal space extending over the entire surface of the compartment. In the lower surface delimiting the space from the bottom there is a series of holes in correspondence with the side walls and also with the center of the compartment.
Type 3 solves in a satisfactory way the problem of an accurate systematic removal of the washing powder in the compartment in normal operating states of the water network.
the pressure of the water network may vary within wide limits even outside the valid standard; and this unwanted variability can of course be transferred to the operation of the machine.
Fig. 1 almost vertical walls 1 of the compartment, bottom 2 of the compartment, detergent load 3, lateral water conduits 4 and central water conduit 5.
the water descending from lateral conduits 4 has produced lateral streams 6 in which it flows freely without removing any more detergent, while the apex of the detergent load remains, although it is reduced in quantity, and is thus not utilized in washing.
Fig. 3 represents a vertical section of a conventional means for supplying the water
Fig. 4 represents the same means modified according to the invention. Comparing Figs. 3 and 4 one will observe the following difference.
the two lateral pipes 7 and 7' are on the same plane as central pipe 7'' in the case of the conventional means (Fig. 3), while in the case of the inventive means (Fig. 4) the two lateral pipes 8 and 8' are located significantly higher than corresponding central pipe 8'', in such a way that the water flowing within the latter must overcome a step to enter 8 and 8'.
mouth 9 of central pipe 8'' is located in a higher position with respect to the bottom of this pipe, at substantially the same height as the bottom of pipes 8 and 8'.
holes 10 in central pipe 8'' are further apart and wider than holes 12 in lateral pipes 8, 8' to ensure uniform washing of the walls of the compartment containing the washing powder.

Landscapes

Engineering & Computer Science (AREA)
Textile Engineering (AREA)
Washing And Drying Of Tableware (AREA)
Detail Structures Of Washing Machines And Dryers (AREA)

EP89111967A 1988-09-06 1989-06-30 Washing machine with a washing agent dispenser Expired - Lifetime EP0357900B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
IT8834040U IT218180Z2 (it)	1988-09-06	1988-09-06	Perfezionamento nei distributori di acqua per macchine lavabiancheria.
IT3404088U		1988-09-06

Publications (3)

Publication Number	Publication Date
EP0357900A2 EP0357900A2 (en)	1990-03-14
EP0357900A3 EP0357900A3 (en)	1991-02-20
EP0357900B1 true EP0357900B1 (en)	1994-05-04

Family

ID=11238946

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP89111967A Expired - Lifetime EP0357900B1 (en)	1988-09-06	1989-06-30	Washing machine with a washing agent dispenser

Country Status (4)

Country	Link
EP (1)	EP0357900B1 (it)
DE (1)	DE68915086T2 (it)
ES (1)	ES2051935T3 (it)
IT (1)	IT218180Z2 (it)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2813366C2 (de) *	1978-03-28	1986-04-10	Bosch-Siemens Hausgeräte GmbH, 8000 München	Waschmittel-Einspüleinrichtung für eine Wäschebehandlungsmaschine
DE2920000C2 (de) *	1978-05-30	1986-05-15	Domar, S.A., Martorellas Del Valles, Barcelona	Vorrichtung zum Abgeben von Reinigungsmitteln in das Waschwasser von Waschmaschinen
DE7834912U1 (de) *	1978-11-24	1979-03-08	Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt	Wasch- und Zusatzmitteleinspuelvorrichtung fuer Waschmaschinen

1988
- 1988-09-06 IT IT8834040U patent/IT218180Z2/it active
1989
- 1989-06-30 ES ES89111967T patent/ES2051935T3/es not_active Expired - Lifetime
- 1989-06-30 EP EP89111967A patent/EP0357900B1/en not_active Expired - Lifetime
- 1989-06-30 DE DE68915086T patent/DE68915086T2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
ES2051935T3 (es)	1994-07-01
IT218180Z2 (it)	1992-04-08
IT8834040V0 (it)	1988-09-06
DE68915086T2 (de)	1994-10-06
EP0357900A2 (en)	1990-03-14
DE68915086D1 (de)	1994-06-09
EP0357900A3 (en)	1991-02-20

Legal Events

Date	Code	Title	Description
1990-01-27	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
1990-03-14	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): DE ES FR GB IT SE
1991-01-02	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1991-02-20	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): DE ES FR GB IT SE
1991-04-17	17P	Request for examination filed	Effective date: 19910219
1993-11-10	17Q	First examination report despatched	Effective date: 19930922
1994-01-17	ITF	It: translation for a ep patent filed
1994-03-17	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-05-04	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): DE ES FR GB IT SE
1994-06-09	REF	Corresponds to:	Ref document number: 68915086 Country of ref document: DE Date of ref document: 19940609
1994-07-01	REG	Reference to a national code	Ref country code: ES Ref legal event code: FG2A Ref document number: 2051935 Country of ref document: ES Kind code of ref document: T3
1994-08-19	ET	Fr: translation filed
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 89111967.9
1995-03-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1995-03-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-04-26	26N	No opposition filed
2002-01-01	REG	Reference to a national code	Ref country code: GB Ref legal event code: IF02
2008-07-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: ES Payment date: 20080605 Year of fee payment: 20
2008-09-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: IT Payment date: 20080609 Year of fee payment: 20
2008-10-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 20080519 Year of fee payment: 20 Ref country code: DE Payment date: 20080523 Year of fee payment: 20
2008-12-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 20080521 Year of fee payment: 20
2009-07-22	REG	Reference to a national code	Ref country code: GB Ref legal event code: PE20 Expiry date: 20090629
2009-08-27	REG	Reference to a national code	Ref country code: ES Ref legal event code: FD2A Effective date: 20090701
2009-09-15	EUG	Se: european patent has lapsed
2009-10-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20090701
2009-11-30	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 EXPIRATION OF PROTECTION Effective date: 20090629
2010-04-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 20080513 Year of fee payment: 20

Publication	Publication Date	Title
KR100195558B1 (ko)	1999-06-15	수직축 자동세탁기의 고성능 세탁 방법 및 장치
US4801333A (en)	1989-01-31	Method of cleaning articles in a tank
KR100409241B1 (ko)	2004-03-09	자동건조세탁기
US9404211B2 (en)	2016-08-02	Sequenced water delivery in an additive dispenser
US5606878A (en)	1997-03-04	Clothes washing machine with improved water recovery tank
US4432111A (en)	1984-02-21	Procedure for washing clothes
EP0636732B1 (de)	1997-10-22	Zum Trocknen eingerichtete Waschmaschine
US4759202A (en)	1988-07-26	Laundry washing machine with a dual washing-agent dispenser
KR100401222B1 (ko)	2003-12-11	건조가능한세탁기
AU2005200380B2 (en)	2011-01-27	Detergent-supply system and washing machine using the same
KR0135677B1 (ko)	1998-04-23	세제 용해장치
CN222893395U (zh)	2025-05-23	衣物处理设备
DE69918853T2 (de)	2005-04-28	Geschirrspülmaschine mit unabhängig gesprizten geschirrkörben
EP0552843B1 (en)	1996-04-03	Washing and drying machine with an improved safety device against water pollution
EP0357900B1 (en)	1994-05-04	Washing machine with a washing agent dispenser
CN1097823A (zh)	1995-01-25	洗衣机
KR100446879B1 (ko)	2004-11-08	세탁기
KR101464301B1 (ko)	2014-11-21	세탁물 처리기기
EP0172203A1 (de)	1986-02-26	Verfahren und vorrichtung zum waschen von wäsche in einer trommelwaschmaschine
US6543259B1 (en)	2003-04-08	Dosing device
WO2018086944A1 (en)	2018-05-17	A washing machine comprising a detergent box assembly and a method of operating a washing machine
DE3147073C2 (de)	1987-03-26	Einspülvorrichtung für Waschmaschinen
EP3054829B1 (en)	2018-12-05	Dishwasher comprising a three-way valve
US3104153A (en)	1963-09-17	Method and apparatus for continuously soaking fibrous material
EP0152893A1 (en)	1985-08-28	Dishwashing machine having liquid level control means of the overflow type