EP2886035B1 - Outlet tube for dish and linen washing maschines - Google Patents

Outlet tube for dish and linen washing maschines Download PDF

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Publication number
EP2886035B1
EP2886035B1 EP14194434.8A EP14194434A EP2886035B1 EP 2886035 B1 EP2886035 B1 EP 2886035B1 EP 14194434 A EP14194434 A EP 14194434A EP 2886035 B1 EP2886035 B1 EP 2886035B1
Authority
EP
European Patent Office
Prior art keywords
outlet tube
support element
hole
membrane
washing machine
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.)
Active
Application number
EP14194434.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2886035A1 (en
Inventor
Gino Restelli
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.)
TP Reflex Group SpA
Original Assignee
RE-FLEX Srl
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 RE-FLEX Srl filed Critical RE-FLEX Srl
Priority to PL14194434T priority Critical patent/PL2886035T3/pl
Publication of EP2886035A1 publication Critical patent/EP2886035A1/en
Application granted granted Critical
Publication of EP2886035B1 publication Critical patent/EP2886035B1/en
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Anticipated expiration legal-status Critical

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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
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4223—Devices for water discharge, e.g. devices to prevent siphoning, non-return valves
    • 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

Definitions

  • the present invention relates to an outlet tube for washing machines in general, in particular dish and linen washing machines.
  • a washing machine for example a dish washing machine, comprises a water conveying tube for conveying the machine water to a drain, which drain may comprise either a sink siphon or trap assembly, or a wall hole connected to a hydraulic or water drain system.
  • Document EP 2 422 679 A2 discloses a water outlet tube having a valve device comprising a cylindrical support element having a central through hole and a plurality of further through holes radially arranged around the central through hole, wherein in said central through hole an umbrella valve is fixedly arranged.
  • Water is conveyed through a water conveying pump included in the washing machine.
  • a negative pressure may be generated in the outlet tube and accordingly the pump is caused to operate in a vacuum or a negative pressure condition.
  • the pump is subjected to operating failures and noise and, as the outlet tube remains in a water-free condition for a time, a disagreeable smell is frequently generated.
  • the aim of the present invention is to provide a dish and linen washing machine outlet tube for overcoming the above mentioned problems and drawbacks.
  • a main object of the invention is to provide such an outlet tube which comprises a small number of component pieces and which, moreover, is advantageous from a mere economic standpoint.
  • Another object of the present invention is to provide such a washing machine outlet tube which, owing to its specifically designed structure, is very reliable and safe in operation.
  • the outlet tube for washing machines such as dish and linen washing machines, according to the present invention, and generally indicated by the reference number 1, comprises a corrugated hollow body 2 having a first end portion including a fitting 3 designed for connection to an outlet 4 of a washing machine 5 including a water discharging or unloading pump 6.
  • Said corrugated body 2 comprises a second end portion including a fitting 7 for connection to a drain 8, which drain may comprise a sink siphon or trap assembly or a wall outlet, as in the example shown in Figure 1 .
  • said corrugated body 2 comprises a smooth zone 9 for engaging therein a valve device, generally indicated by the reference number 10.
  • Said valve device 10 comprises a silicone umbrella valve 11, including a projecting lug 12 engaged in a central hole 13 formed in a support element 14 of said valve.
  • Said support element 14 comprises moreover a plurality of holes 15 which are radially arranged about the central hole 13.
  • the support element 14 comprises a cylindric body open on a side thereof wherein is housed the surface 16 of the umbrella membrane, thereby properly holding the latter.
  • the support element 14 and umbrella valve 11 are housed in an insert 17 including an end piece 18 which is removably engaged in a through hole 19 formed in the smooth zone 9 of the corrugated body 2.
  • umbrella valve 11 and support element 14 may be disassembled from one another and from the corrugated body 2.
  • the washing machine outlet tube according to the present invention operates as follows.
  • umbrella valve 11 will be automatically closed as the pressure in said corrugated body will increase to exceed the environment outer pressure.
  • the umbrella valve applied to the inventive outlet tube prevents said tube from being fully emptied in a washing machine discharging operation step, since said umbrella valve will be opened to allow environment pressure air to enter the outlet tube.
  • the invention has provided a washing machine outlet tube allowing the washing machine pump to operate in an optimum operating condition, thereby increasing the operation life of the pump, and preventing a negative pressure from forming in the outlet tube.
  • outlet tube may also be designed as a smooth tube instead of a corrugated one as in the shown and disclosed exemplary embodiment.
  • outlet tube according to the present invention could also be used for any desired types of dish and/or linen washing machines.
  • inventive outlet tube may also be mounted on existing washing machines, in replacement of conventional existing outlet tubes, without the need of modifying the hydraulic fittings and other apparatus.
  • a further advantage of the outlet tube according to the present invention is that it may be easily serviced, since the valve device 10 may be easily disassembled from the corrugated body and moreover the whole device may also be easily disassembled to its individual components, for cleaning or optionally replacing the latter.
  • the used materials, as well as the contingent size and shapes can be any, depending on requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP14194434.8A 2013-12-17 2014-11-24 Outlet tube for dish and linen washing maschines Active EP2886035B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14194434T PL2886035T3 (pl) 2013-12-17 2014-11-24 Rura odpływu zmywarek do naczyń i pralek do tekstyliów

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002113A ITMI20132113A1 (it) 2013-12-17 2013-12-17 Tubo di scarico per macchine lavatrici quali lavastoviglie e lavabiancheria.

Publications (2)

Publication Number Publication Date
EP2886035A1 EP2886035A1 (en) 2015-06-24
EP2886035B1 true EP2886035B1 (en) 2017-03-08

Family

ID=50115996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14194434.8A Active EP2886035B1 (en) 2013-12-17 2014-11-24 Outlet tube for dish and linen washing maschines

Country Status (4)

Country Link
EP (1) EP2886035B1 (pl)
IT (1) ITMI20132113A1 (pl)
PL (1) PL2886035T3 (pl)
RU (1) RU2622831C2 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020218878A1 (en) 2019-04-25 2020-10-29 Samsung Electronics Co., Ltd. Dishwasher

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018007340A1 (en) * 2016-07-04 2018-01-11 Arcelik Anonim Sirketi A household appliance having a discharge line
IT201700004571A1 (it) * 2017-01-17 2018-07-17 Tp Reflex Group Spa Tubo di scarico dell'acqua di tipo a doppia valvola per macchine di lavaggio quali lavastoviglie e lavabiancheria.
IT201700004550A1 (it) * 2017-01-17 2018-07-17 Tp Reflex Group Spa Tubo di scarico dell'acqua di tipo perfezionato per macchine di lavaggio quali lavastoviglie e lavabiancheria.
CN113080803A (zh) * 2019-11-22 2021-07-09 佛山市顺德区美的洗涤电器制造有限公司 洗碗机
US11882978B2 (en) 2021-10-05 2024-01-30 Whirlpool Corporation Dishwasher with drain assembly

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE374134C (de) * 1923-04-20 Albert Manjock Selbsttaetiges Luftventil mit nachgiebiger Dichtungsflaeche zur Verhinderung des Absaugens von Geruchverschluessen
ES273804Y (es) * 1982-07-29 1984-08-01 Kentsub Limited Valvula para admision de aire
DE20315156U1 (de) * 2003-10-01 2003-12-11 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Spül- und/oder Waschmaschinenablaufschlauch mit integrierter Ventileinrichtung
US5199455A (en) * 1991-11-27 1993-04-06 Chardon Rubber Company Anti-siphon device for drain conduits
US6308731B1 (en) * 1999-06-25 2001-10-30 Itz Corporation Vent valve
DE20319711U1 (de) * 2003-12-19 2004-04-01 Electrolux Home Products Corp. N.V. Geschirrspülmaschine
US7841219B2 (en) * 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US20100175183A1 (en) * 2009-01-09 2010-07-15 Rick Allus Cannon Vented Sink Tailpiece
DE102010039656A1 (de) * 2010-08-23 2012-02-23 BSH Bosch und Siemens Hausgeräte GmbH Geschirrspülmaschine, insbesondere Haushalt-Geschirrspülmaschine
US20130025637A1 (en) * 2011-07-28 2013-01-31 Electrolux Home Products, Inc. Siphon break apparatus configured to prevent a siphon effect in a fluid conduit of a dishwasher and an associated method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020218878A1 (en) 2019-04-25 2020-10-29 Samsung Electronics Co., Ltd. Dishwasher
CN113677249A (zh) * 2019-04-25 2021-11-19 三星电子株式会社 洗碗机
EP3905940A4 (en) * 2019-04-25 2022-03-23 Samsung Electronics Co., Ltd. Dishwasher
US11957290B2 (en) 2019-04-25 2024-04-16 Samsung Electronics Co., Ltd. Dishwasher

Also Published As

Publication number Publication date
EP2886035A1 (en) 2015-06-24
RU2622831C2 (ru) 2017-06-20
PL2886035T3 (pl) 2017-08-31
ITMI20132113A1 (it) 2015-06-18
RU2014150501A (ru) 2016-07-10

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