EP1209275B1 - Dispositif pour l' évacuation de l'eau de lavage dans une machine à laver - Google Patents

Dispositif pour l' évacuation de l'eau de lavage dans une machine à laver Download PDF

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Publication number
EP1209275B1
EP1209275B1 EP01124895A EP01124895A EP1209275B1 EP 1209275 B1 EP1209275 B1 EP 1209275B1 EP 01124895 A EP01124895 A EP 01124895A EP 01124895 A EP01124895 A EP 01124895A EP 1209275 B1 EP1209275 B1 EP 1209275B1
Authority
EP
European Patent Office
Prior art keywords
housing
discharge pump
solution
connecting member
duct
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
EP01124895A
Other languages
German (de)
English (en)
Other versions
EP1209275A2 (fr
EP1209275A3 (fr
Inventor
Edwin Bolduan
Wolfgang Proppe
Horst Wiemer
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1209275A2 publication Critical patent/EP1209275A2/fr
Publication of EP1209275A3 publication Critical patent/EP1209275A3/fr
Application granted granted Critical
Publication of EP1209275B1 publication Critical patent/EP1209275B1/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
    • D06F39/086—Arrangements for avoiding detergent wastage in the discharge conduit

Definitions

  • the invention relates to a Laugenabpumpstrang for a washing machine, which contains a return container whose volume is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the washing drum of the washing machine by gravity, the return tank at the bottom with an inlet and top provided with an outlet for the liquor to be pumped.
  • a washing machine with a Laugenabpumpstrang of this kind is out DE 69 23 774 U and from DE 35 06 761 A1 known.
  • the Laugenabpumpstrang contains a return tank whose volume is such that when the drain pump is switched off, a predetermined amount of liquor can flow back through the drain pump under the washing drum by gravity, the return tank is provided at the bottom with an inlet and above with an outlet for the liquor to be pumped.
  • the container according to DE 35 05 781 A1 has a two-part housing with a horizontal parting plane between the lower housing part and the upper housing part.
  • the two housing parts are plastic injection-molded parts, which must be fixed relative to each other at their parting plane and welded together.
  • a plastic corrugated tube is connected as Abpumpschlauch via a seal to a sleeve and secured by a hose clamp against unintentional disconnection from the return tank to the return tank.
  • the object to be achieved the return container form such that it is cheaper to produce, in particular such that said welding and / or said leak test are no longer necessary.
  • the return tank has a one-piece, injection-molded housing having at least at its lower end portion a circular cylindrical shape and an inner diameter which is larger than that Outer diameter of a provided at the inlet lower Abpumptechnischs commentedes, which is directed from bottom to top in the housing, that a ring-shaped in cross-section connecting piece is provided, which in the peripheral region between the lower Abpump effetsoutheastern and the housing an annular Caseback forms, wherein the connecting piece is sealed at its radially inner Umflinds Suite against the lower Abpumptechnischs founded and at its radially outer peripheral portion against the housing and is axially secured against unintentional disconnection.
  • the housing is preferably made of plastic.
  • This return tank which is produced as an injection molded part, is preferably connected in a watertight manner with a plastic drain hose in a form-fitting manner.
  • the flexible Abpumpschlauch may for example be a so-called corrugated tube.
  • Its positive connection with the return tank is preferably carried out by a plug connection, preferably by a plug-and-lock connection, which may be detachable or non-detachable.
  • the interlocking connection between pumping hose and return tank prevents hose clamps and similar clamping elements.
  • a rubber or plastic sleeve can be pushed on, whose inner diameter seals against the pumping hose and whose outer diameter seals against the return tank from the inside.
  • a sleeve in another embodiment, can be molded or vulcanized on the one hand at the end of Abpumpschlauches and on the other hand be sealingly arranged in the inner diameter or preferably on the outer diameter of the return tank.
  • a hose clamp can additionally be used.
  • washing machine 4 In a drum-shaped tub 2 of in Fig. 1 washing machine 4 is shown a washing drum 6 rotatably mounted about a horizontal axis.
  • the tub 2 can be supplied via a line 8, a solenoid valve 10 and a Waschstoffein Kunststoff Road 12 water.
  • the machine housing 14 and the highest attainable in the tub 10 water level 16 are shown schematically by dashed lines.
  • a drain line 20 To the bottom 18 of the tub 2, a drain line 20 is connected, which leads via a Flusenabscheider 22 to the suction side of a drain pump 24.
  • a drain hose 25, 26 is connected, which consists of a lower Abpumptechnischs laminate 25 and an upper Abpump effetsogni 26 which are interconnected by a return tank 30, wherein the two Abpump effets laminatee are bendable and preferably so-called corrugated tubing.
  • the upper discharge line 26 may be connected to a drain or hung in a drainage basin 28.
  • the volume of the return tank 30 is about so large that after pumping out of the liquor, when the drain pump 24 is turned off, coming from the Abpumpschlauch 25, 26 and the return tank 30 through the drain pump 24 leaches at a level which is approximately is at the height of the bottom portion 18 of the tub 2. This ensures that with subsequent addition of detergent from the Waschstoffein Letnd 12 this detergent does not disappear in the drain line 21 at the bottom 18 of the tub 2, but is rinsed by the also newly added water of the water pipe 8 in the laundry drum 6.
  • the housing of the return tank 30 is a one-piece housing, which is produced by injection molding.
  • it is an injection molded plastic body.
  • the return tank 30 of Fig. 1 can be realized in different ways. Some of these are below with reference to the Figures 2 . 3 and 4 described.
  • tubs 30-2, 30-3 and 30-4 each have a manufactured by injection molding one-piece housing 32 made of plastic, which preferably has a circular cylindrical shape with a vertical cylinder axis, at least at its lower end portion.
  • Both Figures 2 . 3 and 4 has the housing 32 at least at its lower end a Inner diameter, which is greater than the outer diameter of the connected at the lower inlet 34 Abpumptechnischs Swisses 25. This lower Abpump effets Gla 25 is directed upward into the housing 32.
  • the lower Abpump Gustavs Culture 25 is extended by a line end 44 which opens into the housing 32 and the radial inner boundary of acting as a coarse chamber trap, preferably annular gap 46 which radially outward of a line end piece 44 at a distance radially opposite peripheral wall 48 of Housing 32 ( Fig. 4 ) is limited according to the Figures 2 . 3 and 4 , and according to the Figures 2 and 3 may also be partially limited by the connecting piece 36.
  • the radially outer peripheral wall of the intermediate space 46 may be formed exclusively by the connecting piece 36, when its housing bottom 38 is deposited correspondingly deep below the housing 32.
  • the conduit end piece 44 preferably has at least one opening 50, which is preferably formed by one or more slots in its longitudinal direction, through which liquor from the chamber 46 serving as a coarse chamber trap can flow back into the lower Abpump effets committee 25 when the drain pump 24 after pumping lye is switched off.
  • the coarse chamber trap formed by the space 46 is used to collect "coarse” parts in the liquor such as buttons, needles, screws and similar parts that can get into the laundry drum 6 and from this in the return tank with the laundry, where they from the in the center of the housing 32 upwardly flowing liquor are flushed radially outward and can fall back into the intermediate space 46 (coarse chamber trap).
  • the connector is formed in that the connecting piece 36 is formed at its upper end portion 52 as a sleeve which is plugged (or inserted) on (or in) the lower end portion of the housing 32 and has a larger diameter than the tubular lower end portion 54 of Connecting piece 36.
  • the upper, designed as a sleeve end portion 52 of the connecting piece 36 is adapted to the diameter of the housing 32.
  • the upper end portion 52 of the connector 36 may be welded or adhered to the lower end portions of the axial fixation case 32. According to Fig.
  • the upper end portion 52 of the connector 36 may be provided with a detent lug 56 which engages a recess 58 on the outer periphery of the housing 32, thereby preventing unintentional disconnection of the connector 36 from the housing 32. Between both elements, a seal 60 may be used. The detent nose 56 and the recess 58 may be reversed.
  • conduit end 44 together with the pump-down conduit 25 may be an integral part, or may be detachably connected thereto, or preferably inseparable from injection or scorching or coextrusion.
  • the conduit end 44 together with the housing 32 and the housing bottom 38 may be an integral part.
  • the connecting piece 36-4 is an annular sealing body which is inserted between the line end piece 44 of the lower Abpumptechnischs Kunststoffes 25 and the outer surrounding housing 32 and bears watertight on both.
  • the seal body 36-4 is preferably inserted into an outer circumferential groove 60 of the conduit end piece 44 and axially secured by the groove walls so that it can axially snap past the inwardly projecting detent projections 62 of the housing 32 upon insertion of the conduit end piece 44 into the housing 32 and then from there Latch projections 62 is prevented from slipping out of the housing 32.
  • an outlet 64 In the housing 32 is at height above the lower inlet 34 an outlet 64, preferably in the form of a sleeve extending transversely to the vertical direction, to which the upper pumping line piece 26 is connected, preferably being connected, with or without a latching connection. This connection is watertight, for example, by sealing rings 66.
  • the upper outlet 64 is preferably at or near the top of the housing 32. According to another embodiment, the housing 32 may be extended upwardly beyond the upper outlet.
  • an additional opening 68 is formed in the housing 32, e.g. as a vent or for the connection of a pressure sensor or a liquid sensor for the detection of alkali or water in the housing 32nd
  • the housing 32 In order for the housing 32 to be made in one piece by injection molding, it must have an opening at one end, from which the tool core can be pulled out at the end of the injection molding process. This opening may be at the lower or upper end of the housing 32. In the embodiments of the Figures 2 . 3 and 4 This opening therefore forms the lower inlet 34. According to embodiments not shown, it is therefore also possible to provide the opening required for pulling out the injection-molding core at the upper end of the housing 32. In this case, an embodiment of the invention is that the housing bottom 38 and also the line end 44 of the lower Abpumptechnischs Kunststoffes 35 are produced as an integral part of the housing 32 by means of an injection molding process.
  • a further embodiment may be to make the upper Abpump effets consultancy 26 together with the housing 32 by injection molding as a one-piece part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Slot Machines And Peripheral Devices (AREA)
  • Lubricants (AREA)
  • Detergent Compositions (AREA)

Claims (7)

  1. Dispositif d'évacuation de l'eau de lavage pour une machine à laver, contenant un récipient de retour (30; 30-2; 30-3; 30-4) dont le volume est dimensionné de manière à ce qu'une quantité de l'eau de lavage prédéterminée puisse refluer à travers la pompe à lessive sous le tambour à linge de la machine à laver sous l'effet de la pesanteur lorsque la pompe à lessive est arrêtée, le récipient de retour étant pourvu d'une entrée (34) en bas et d'une sortie (64) en haut pour l'eau de lavage à évacuer, caractérisé en ce que le récipient de retour comprend un boîtier (32) d'une pièce fabriqué dans un procédé de moulage par injection possédant, au moins au niveau de son segment d'extrémité inférieur, une forme cylindrique circulaire et un diamètre intérieur supérieur au diamètre extérieur d'une section de conduite de vidange inférieure (25) prévue au niveau de l'entrée (34) et dirigée du bas vers le haut dans le boîtier, en ce qu'un raccord (36; 36-4) pourvu d'une forme annulaire en coupe horizontale est prévu, lequel raccord forme un fond de boîtier (38) annulaire dans la zone circonférentielle entre la section de conduite de vidange inférieure et le boîtier (32), le raccord étant rendu étanche par rapport à la section de conduite de vidange inférieure (25) au niveau de sa zone circonférentielle intérieure dans le sens radial et par rapport au boîtier (32) au niveau de sa zone circonférentielle extérieure dans le sens radial et étant fixé axialement à chaque fois de manière à empêcher une séparation accidentelle.
  2. Dispositif d'évacuation de l'eau de lavage selon la revendication 1, caractérisé en ce que le boîtier (32) est en matière plastique.
  3. Dispositif d'évacuation de l'eau de lavage selon la revendication 1 ou 2, caractérisé en ce que l'on prévoit un embout de conduite (44) qui est une partie ou un prolongement de la section de conduite de vidange inférieure (25), qui fait saillie dans le boîtier (32) du bas vers le haut, au-delà du raccord (36; 36-4), débouche dans le boîtier (32) et forme la limite intérieure, dans le sens radial, d'un espace intermédiaire (46) agissant en tant que chambre pour piéger de petits objets qui est formée, sur l'extérieur dans le sens radial et en bas, par une paroi circonférentielle du boîtier (32) et/ou par le raccord (36; 36-4).
  4. Dispositif d'évacuation de l'eau de lavage selon la revendication 3, caractérisé en ce que l'embout de conduite (44) est pourvu d'au moins une ouverture latérale (50) dans sa paroi de conduite pour permettre le reflux de l'eau de lavage de l'espace intermédiaire (46) dans l'embout de conduite.
  5. Dispositif d'évacuation de l'eau de lavage selon la revendication 3 ou 4, caractérisé en ce que le raccord (36; 36-4) est relié au boîtier (32) par un assemblage par emboîtement (56, 58; 62).
  6. Dispositif d'évacuation de l'eau de lavage selon l'une des revendications 3 à 5, caractérisé en ce que le raccord (36) est un manchon qui est pourvu d'un diamètre plus petit, adapté à la section de conduite de vidange (25), en bas qu'en haut, le diamètre supérieur plus grand étant adapté au boîtier (32).
  7. Dispositif d'évacuation de l'eau de lavage selon l'une des revendications 3 à 5, caractérisé en ce que le raccord (36-4) est un corps d'étanchéité annulaire qui est inséré entre le boîtier (32) d'une part et l'embout de conduite (44) d'autre part et est contigu au boîtier et à l'embout d'une manière étanche à l'eau à chaque fois.
EP01124895A 2000-11-24 2001-10-18 Dispositif pour l' évacuation de l'eau de lavage dans une machine à laver Expired - Lifetime EP1209275B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10058413A DE10058413B4 (de) 2000-11-24 2000-11-24 Laugenabpumpstrang in einer Waschmaschine
DE10058413 2000-11-24

Publications (3)

Publication Number Publication Date
EP1209275A2 EP1209275A2 (fr) 2002-05-29
EP1209275A3 EP1209275A3 (fr) 2004-01-21
EP1209275B1 true EP1209275B1 (fr) 2008-08-13

Family

ID=7664544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124895A Expired - Lifetime EP1209275B1 (fr) 2000-11-24 2001-10-18 Dispositif pour l' évacuation de l'eau de lavage dans une machine à laver

Country Status (4)

Country Link
EP (1) EP1209275B1 (fr)
AT (1) ATE404723T1 (fr)
DE (2) DE10058413B4 (fr)
ES (1) ES2310534T3 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004011469U1 (de) * 2004-07-22 2004-09-30 BSH Bosch und Siemens Hausgeräte GmbH Waschmitteleinspüleinrichtung für ein wasserführendes Haushaltgerät
DE102006031861A1 (de) * 2006-07-10 2008-01-17 BSH Bosch und Siemens Hausgeräte GmbH Laugenabpumpstrang
DE102009046782A1 (de) 2008-12-16 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer in zwei Betriebsarten steuerbaren Pumpe
DE102008054708B4 (de) 2008-12-16 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Aufnahmeeinrichtung zum Aufnehmen mehrerer Waschstücke
DE102009046856A1 (de) 2008-12-16 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Zahnradpumpe
DE102008054821B3 (de) * 2008-12-17 2010-03-18 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit Venturipumpe am Wasserzufuhrstrang
DE102008054820B4 (de) 2008-12-17 2014-05-22 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Einspüleinrichtung mit einer Warm- und/oder Trockenlufteinheit
US9309616B2 (en) 2008-12-19 2016-04-12 BSH Hausgeräte GmbH Laundry handling apparatus with a cuff and a filling support
DE202008016886U1 (de) 2008-12-19 2009-03-05 BSH Bosch und Siemens Hausgeräte GmbH Wäschebehandlungsgerät mit einer Manschette mit Einfüllstutzen
DE102009028481B3 (de) 2009-08-12 2011-06-16 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einem Schaltventil
DE102009028479B4 (de) 2009-08-12 2014-12-11 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einer Wasserzufuhrleitung
DE102009028484B3 (de) 2009-08-12 2011-01-05 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einer Pumpe
DE102009029446B4 (de) 2009-09-14 2022-03-24 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät
DE102010029890A1 (de) 2010-06-09 2011-12-15 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einem Trübungssensor
DE102010044189A1 (de) 2010-11-19 2012-05-24 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Hausgerät mit einer Ausgabe von an einen Benutzer gerichteten Handlungsanweisungen
DE102011076211B4 (de) 2011-05-20 2019-03-14 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit verschließbarem Schlauchstück
DE102011083295B3 (de) * 2011-09-23 2013-02-07 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Pulsator
DE102011089625A1 (de) * 2011-12-22 2013-06-27 BSH Bosch und Siemens Hausgeräte GmbH Laugenabpumpstrang für ein Haushaltsgerät zur Pflege von Wäschestücken sowie entsprechendes Haushaltsgerät mit einem Laugenabpumpstrang
DE102012024761B4 (de) 2012-01-13 2020-03-26 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einem Saugheber im Ablauf
DE102012205726A1 (de) 2012-04-05 2013-10-10 BSH Bosch und Siemens Hausgeräte GmbH Bogenrohrhalter zum Halten eines Schlauchs, Anordnung mit solchem Bogenrohrhalter sowie wasserführendes Haushaltsgerät mit solcher Anordnung
DE102012224014B4 (de) 2012-12-20 2021-09-23 BSH Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer Belüftungsleitung für den Abpumpstrang

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6923774U (de) * 1969-06-13 1970-03-12 Siemens Elektrogeraete Gmbh Ablaufschlauch fuer eine wasch- oder geschirrspuelmaschine
DE3119340A1 (de) * 1981-05-15 1982-12-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "waschmaschine mit einer elektrisch antreibbaren laugenpumpe"
DE3506761C2 (de) * 1985-02-26 1994-08-11 Bosch Siemens Hausgeraete Waschmaschine mit einer Laugenpumpe
ES1034880Y (es) * 1996-08-05 1997-07-01 Balay Sa Campana de presion con autosujecion y conexion propias.
DE19921441B4 (de) * 1999-05-10 2010-04-15 BSH Bosch und Siemens Hausgeräte GmbH Haushaltgerät, insbesondere Waschmaschine, Waschtrockner oder Geschirrspülmaschine

Also Published As

Publication number Publication date
EP1209275A2 (fr) 2002-05-29
DE10058413B4 (de) 2006-07-27
DE10058413A1 (de) 2002-06-13
EP1209275A3 (fr) 2004-01-21
ES2310534T3 (es) 2009-01-16
ATE404723T1 (de) 2008-08-15
DE50114211D1 (de) 2008-09-25

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