EP0951860B1 - Dishwasher or washing machine provided with a member for checking the working of the flood-preventing device - Google Patents

Dishwasher or washing machine provided with a member for checking the working of the flood-preventing device Download PDF

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Publication number
EP0951860B1
EP0951860B1 EP99830087A EP99830087A EP0951860B1 EP 0951860 B1 EP0951860 B1 EP 0951860B1 EP 99830087 A EP99830087 A EP 99830087A EP 99830087 A EP99830087 A EP 99830087A EP 0951860 B1 EP0951860 B1 EP 0951860B1
Authority
EP
European Patent Office
Prior art keywords
tray
float
dishwasher
machine
flood
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 - Lifetime
Application number
EP99830087A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0951860A1 (en
Inventor
Roberto Bertazzoni
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.)
Smeg SpA
Original Assignee
Smeg 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 Smeg SpA filed Critical Smeg SpA
Publication of EP0951860A1 publication Critical patent/EP0951860A1/en
Application granted granted Critical
Publication of EP0951860B1 publication Critical patent/EP0951860B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4244—Water-level measuring or regulating arrangements
    • 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
    • D06F39/081—Safety arrangements for preventing water damage

Definitions

  • the present invention relates to washing machines or dishwashers provided with a flood-preventing device, and in particular to such a machine provided with a member which allows to check the working of said device.
  • washing machines or dishwashers for domestic use are generally provided with a flood-preventing device whose function is to stop the entrance of water coming from the hydraulic network in case of leakage from any component of the machine.
  • This device substantially consists of a tray located at the bottom of the machine, where the possible leak is collected, and a float placed in the tray which activates a microswitch when raised.
  • the activation of the microswitch causes the closure of the water inlet valve and usually also the activation of the drain pump, so as to prevent the risk of flooding.
  • the object of the present invention is to provide a washing machine or dishwasher suitable to overcome the above-mentioned drawbacks.
  • the main advantage of the machine according to the present invention is to allow a simple and safe way for a systematic check of the working of the flood-preventing device. This obviously results in a dramatic increase in the reliability of said device.
  • a further advantage of the present machine is that it does not require significant changes in order to achieve said function, whereby the costs and production processes remain substantially unchanged.
  • a dishwasher conventionally includes a bottom tray 1 wherein, at an almost central position, there is placed a float 2.
  • the tray 1 can collect a possible water leak from any component of the machine, such as the pump 3, the duct which feeds the sprinkler 4, the chamber 5 at the bottom of the tank, etc.
  • the microswitch 6 is mounted above the float 2 so as to be activated as soon as the water collected in the tray I causes a little raising of the latter (dotted line in fig.2).
  • the novel aspect of the machine according to the present invention is a deformable diaphragm-shaped member 7 which water-tightly closes a hole formed in the tray 1, preferably at the center of the float 2.
  • This hole allows to check the working of the flood-preventing device by simply mechanically pushing upwards the float 2 through deformation of the diaphragm 7. This type of check can easily be made automatic and carried out directly on the production line in a systematic manner, that is on 100% of the machines.
  • the member 7 in particular is provided with a peripheral crown 7a having a seat for the fitting thereof on the thickness of the tray 1, as well as a central peg 7b projecting upwards close to the float 2 so as to minimize the deformation required for the check.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
EP99830087A 1998-03-16 1999-02-18 Dishwasher or washing machine provided with a member for checking the working of the flood-preventing device Expired - Lifetime EP0951860B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI980526 1998-03-16
IT98MI000526A IT1298747B1 (it) 1998-03-16 1998-03-16 Macchina lavastoviglie o lavatrice con elemento di verifica della funzionalita' del dispositivo anti-allagamento

Publications (2)

Publication Number Publication Date
EP0951860A1 EP0951860A1 (en) 1999-10-27
EP0951860B1 true EP0951860B1 (en) 2002-09-25

Family

ID=11379327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830087A Expired - Lifetime EP0951860B1 (en) 1998-03-16 1999-02-18 Dishwasher or washing machine provided with a member for checking the working of the flood-preventing device

Country Status (4)

Country Link
EP (1) EP0951860B1 (it)
DE (1) DE69903087T2 (it)
ES (1) ES2182474T3 (it)
IT (1) IT1298747B1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60132779T2 (de) * 2000-07-26 2009-02-05 Arcelik A.S., Tuzla Sicherheitsvorrichtung gegen überschwemmung
ITMI20011976A1 (it) * 2001-09-21 2003-03-21 T & P Spa Dispositivo di sicurezza del carico per macchina lavastoviglie e relativo metodo di funzionamento
WO2007027036A2 (en) * 2005-08-29 2007-03-08 Lg Electronics Inc. Dish washer
DE602007009635D1 (de) * 2007-03-14 2010-11-18 Vestel Beyaz Esya Sanayi Ve Ti Vorrichtung zur Erfassung eines Überlaufs

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721783A (en) * 1971-07-27 1973-03-20 Westinghouse Electric Corp Overflow float arrangement for dishwasher
GB2223613A (en) * 1988-07-22 1990-04-11 Francis Barnish Electronic fluid leakage detector
DE4101763C2 (de) * 1991-01-22 1995-11-30 Bosch Siemens Hausgeraete Sicherheitseinrichtung für wasserführende Haushaltgeräte
DE19546965A1 (de) * 1995-12-15 1997-06-19 Bosch Siemens Hausgeraete Wasserführendes, programmgesteuertes Haushaltgerät

Also Published As

Publication number Publication date
ITMI980526A1 (it) 1999-09-16
DE69903087T2 (de) 2003-05-22
IT1298747B1 (it) 2000-02-02
EP0951860A1 (en) 1999-10-27
DE69903087D1 (de) 2002-10-31
ES2182474T3 (es) 2003-03-01

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