EP1162300A2 - Dispositif de vidange pour machine à laver - Google Patents

Dispositif de vidange pour machine à laver Download PDF

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Publication number
EP1162300A2
EP1162300A2 EP01201905A EP01201905A EP1162300A2 EP 1162300 A2 EP1162300 A2 EP 1162300A2 EP 01201905 A EP01201905 A EP 01201905A EP 01201905 A EP01201905 A EP 01201905A EP 1162300 A2 EP1162300 A2 EP 1162300A2
Authority
EP
European Patent Office
Prior art keywords
discharge
wall
opening
washing water
filter
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
EP01201905A
Other languages
German (de)
English (en)
Other versions
EP1162300B1 (fr
EP1162300A3 (fr
Inventor
Silvano Fumagalli
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.)
Candy SpA
Original Assignee
Candy 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 Candy SpA filed Critical Candy SpA
Publication of EP1162300A2 publication Critical patent/EP1162300A2/fr
Publication of EP1162300A3 publication Critical patent/EP1162300A3/fr
Application granted granted Critical
Publication of EP1162300B1 publication Critical patent/EP1162300B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • 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 
    • D06F39/10—Filtering arrangements

Definitions

  • the present invention refers to a discharge unit for a washing machine, in particular for a laundry washing-machine or dishwasher.
  • Traditional washing-machines or dishwashers are commonly provided with a unit for the discharge of the washing water; such unit comprises a tubular duct in flow connection with the tank of the washing-machine or dishwasher, a filter for the filtering of the washing water coming from the tank and a discharge pump provided with a delivery pipe in order to discharge the filtered washing water outside.
  • a certain amount of washing water contained in the discharge pipe falls back inside the tank containing the filter and tends to outflow through the mouth of the filter during the operation of cleaning or substitution of the same thus forcing the user to recuperate it with fortune means.
  • a valve is generally used that is capable to open up during the discharge of the washing water to the outside and to close up when such operation of discharge ends thus preventing the back-flow water from the pipe to invade the tank containing the filter.
  • Such valve called non-return valve, is traditionally positioned inside the container of the discharge pump in proximity of the discharge pipe.
  • scope of the present invention is to present a discharge unit for washing machine in which the non-return valve is positioned in a position that is more easily reachable for the intervention on it or its substitution.
  • an discharge unit for washing machine provided with a washing tank
  • said unit comprising a filter container connected with said tank and in which a filter for the filtering of the washing water coming from said tank is housed, said filter container being fixedly mounted to a discharge pump container provided with an impeller for the conveying of the filtered washing water towards a discharge duct, characterized in that between said filter and said impeller a wall is arranged that is provided with an opening with which a non-return valve is associated, said non-return valve maintaining said opening opened by means of action of the same washing water during a normal operation of discharge of the washing water and maintaining said opening closed by means of action of the back flow water from said discharge pipe at the end of the discharge operation.
  • Such unit comprises a container 1 for a mushroom shaped filter 2 facing a vertical wall 4 mounted inside the container 1 and provided with a central hole 5.
  • Said container 1 is coupled on top, in the part of container antecedent the wall 4, to a tubular duct 6 that is in flow connection with a washing tank not visible in figures.
  • the same container 1 is fixedly mounted to a container 100 of an impeller 9 of a discharge pump that is laterally provided with an opening 7 for the connection with a discharge pipe not visible in the figures.
  • another centrally pierced vertical wall 8 and arranged between the vertical wall 4 and the opening 7 is also provided.
  • a non-return valve 10 generally made of rubber is arranged which comprises a cone 11 connected at its apex to a round plate 12 similar to a wheel with round rim 14 and openings 16 delimited by appropriate spokes.
  • the valve 10 is free to move only horizontally and it is positioned so that the plate 12 gets in abutment with the edge of the hole 5 of the wall 4 in its surface facing the filter 2 and the cone 11 is arranged with its base facing the wall 8.
  • the same washing water flows through the duct 6 inside the container 1 and it is filtered by the filter 2.
  • the flow of the washing water thrusts the plate 12 of the valve 10 in abutment with the wall 4, as visible in Figure 1; in that way the washing water passes through the openings 16 and the passage area delimited by the edge of the hole 5 of the wall 4 and by the side surface of the cone 11 of the valve 10 and after having passed through the hole of the wall 9 is lead toward the opening 7 of the discharge pipe.
  • the back-flow water from the discharge pipe thrusts the cone 11 of the valve 10 toward the wall 4; in such a way the valve 10 is moved towards the left, the plate 12 is not any more in abutment with the wall 4 while the side surface of the cone 11 gets in abutment with the edge of the hole 5 of the wall 4 thus closing the passage for the back-flow water from the discharge pipe, as visible in Figure 2.
  • the conical shape of the part 11 of the non-return valve 10 allows the closing of the hole 5 of the wall 4 with any position of the valve 10 at the moment of the water back flow from the discharge pipe; the shape of the plate 12 allows to leave the passage of the washing water free when the same must be sucked by the impeller 9 of the discharge pump.
  • the vertical wall 4 is provided with projections 3 that allow a simple removal from the container 1 by means of action of holding with pincers after the extraction of the filter 2.
  • the mushroom filter 2 is located at a preestablished distance from the wall 4, for instance comprised between 3 ⁇ 4mm.
  • the filter 2 can be made of a ring structure or an appropriately pierced tubular structure.
  • valve 20 made of rubber, is positioned in the part of container 1 comprised between the walls 4 and 8 and it comprises a half sphere shaped plate 21 attached to an upper appendix 30 of the wall 4 of the container 1 as a pendulum by means of a rubber border 22.
  • the plate 21 has the hollow part facing the wall 8 while its spherical surface faces towards the wall 4 so as to be able to close the hole 5.
  • the back-flow water from the discharge pipe thrusts the plate 21 of the valve 20 towards the wall 4; in such a way the plate 21 goes in abutment with the edge of the hole 5 of the wall 4 thus closing the passage for the back-flow water from the discharge pipe, as visible in Figure 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Check Valves (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP01201905A 2000-06-05 2001-05-21 Dispositif de vidange pour machine à laver Expired - Lifetime EP1162300B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2000MI000346U IT250234Y1 (it) 2000-06-05 2000-06-05 Apparato di scarico per macchina di lavaggio
ITMI000346 2000-06-05

Publications (3)

Publication Number Publication Date
EP1162300A2 true EP1162300A2 (fr) 2001-12-12
EP1162300A3 EP1162300A3 (fr) 2003-03-19
EP1162300B1 EP1162300B1 (fr) 2004-12-29

Family

ID=11444179

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01201905A Expired - Lifetime EP1162300B1 (fr) 2000-06-05 2001-05-21 Dispositif de vidange pour machine à laver

Country Status (4)

Country Link
EP (1) EP1162300B1 (fr)
DE (1) DE60108000T2 (fr)
ES (1) ES2234763T3 (fr)
IT (1) IT250234Y1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7758323B2 (en) 2005-09-23 2010-07-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Drain pump for home appliances
US20120125056A1 (en) * 2010-11-22 2012-05-24 Electrolux Home Products Corporation N.V. Washing Machine With Recirculation Circuit
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
KR101435944B1 (ko) * 2007-05-08 2014-09-02 삼성전자주식회사 배수장치 및 이를 구비한 세탁기
US8881555B2 (en) 2007-05-08 2014-11-11 Samsung Electronics Co., Ltd. Drain device and washing machine having the same
WO2017153140A1 (fr) * 2016-03-08 2017-09-14 BSH Hausgeräte GmbH Appareil d'entretien du linge pourvu d'un tuyau d'évacuation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2462873B1 (es) * 2012-11-26 2015-04-13 Bsh Electrodomésticos España, S.A. Dispositivos de vaciado de líquido de lavado para máquina lavadora, máquina lavadora y bomba de desagüe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT247274B (de) * 1963-10-18 1966-05-25 Bosch Gmbh Robert Pumpe zum Abpumpen der Flüssigkeit aus Wasch- und Geschirrspülmaschinen
GB2174110A (en) * 1985-04-25 1986-10-29 Licentia Gmbh Reducing detergent wastage in a washing machine
DE9406791U1 (de) * 1994-04-23 1995-08-31 AEG Hausgeräte GmbH, 90429 Nürnberg Entleerungspumpe mit Rückschlagventil für Haushalt-Geschirrspül- und -Waschmaschinen
DE19546967A1 (de) * 1995-12-15 1997-06-19 Bosch Siemens Hausgeraete Wasserführendes Haushaltgerät

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT247274B (de) * 1963-10-18 1966-05-25 Bosch Gmbh Robert Pumpe zum Abpumpen der Flüssigkeit aus Wasch- und Geschirrspülmaschinen
GB2174110A (en) * 1985-04-25 1986-10-29 Licentia Gmbh Reducing detergent wastage in a washing machine
DE9406791U1 (de) * 1994-04-23 1995-08-31 AEG Hausgeräte GmbH, 90429 Nürnberg Entleerungspumpe mit Rückschlagventil für Haushalt-Geschirrspül- und -Waschmaschinen
DE19546967A1 (de) * 1995-12-15 1997-06-19 Bosch Siemens Hausgeraete Wasserführendes Haushaltgerät

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7758323B2 (en) 2005-09-23 2010-07-20 Bsh Bosch Und Siemens Hausgeraete Gmbh Drain pump for home appliances
KR101435944B1 (ko) * 2007-05-08 2014-09-02 삼성전자주식회사 배수장치 및 이를 구비한 세탁기
US8881555B2 (en) 2007-05-08 2014-11-11 Samsung Electronics Co., Ltd. Drain device and washing machine having the same
US20120125056A1 (en) * 2010-11-22 2012-05-24 Electrolux Home Products Corporation N.V. Washing Machine With Recirculation Circuit
US9702079B2 (en) * 2010-11-22 2017-07-11 Electrolux Home Products Corporation N.V. Washing machine with recirculation circuit
US8627832B2 (en) 2010-12-13 2014-01-14 Whirlpool Corporation Rotating filter for a dishwashing machine
WO2017153140A1 (fr) * 2016-03-08 2017-09-14 BSH Hausgeräte GmbH Appareil d'entretien du linge pourvu d'un tuyau d'évacuation

Also Published As

Publication number Publication date
DE60108000T2 (de) 2005-12-15
EP1162300B1 (fr) 2004-12-29
ITMI20000346V0 (it) 2000-06-05
DE60108000D1 (de) 2005-02-03
EP1162300A3 (fr) 2003-03-19
ES2234763T3 (es) 2005-07-01
ITMI20000346U1 (it) 2001-12-05
IT250234Y1 (it) 2003-07-28

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