EP1709231A2 - Lave-linge a chargement frontal, pourvu d'un tambour rotatif - Google Patents

Lave-linge a chargement frontal, pourvu d'un tambour rotatif

Info

Publication number
EP1709231A2
EP1709231A2 EP05707793A EP05707793A EP1709231A2 EP 1709231 A2 EP1709231 A2 EP 1709231A2 EP 05707793 A EP05707793 A EP 05707793A EP 05707793 A EP05707793 A EP 05707793A EP 1709231 A2 EP1709231 A2 EP 1709231A2
Authority
EP
European Patent Office
Prior art keywords
drum
washing machine
washing
laundry
interior
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.)
Withdrawn
Application number
EP05707793A
Other languages
German (de)
English (en)
Inventor
Eckehard Reinwald
Gundula Czyzewski
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 EP1709231A2 publication Critical patent/EP1709231A2/fr
Withdrawn legal-status Critical Current

Links

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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F21/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement 
    • D06F21/10—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement  about an inclined axis
    • 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
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis

Definitions

  • the invention relates to one of the loadable washing machine with a rotatable laundry drum, the drum jacket is provided with flood holes for exchanging the washing liquor between the interior of the laundry drum and the interior of a tub surrounding it and the deepest surface line in the operating position of the washing machine from a horizontal deviates from increasing, with hollow, elongated drivers, which are designed so that they absorb liquid quantities from their lowest position and lift them when the drum is rotated, and discharge them from a raised position into the interior of the drum.
  • Tron rnel washing machines in which the drivers are inclined and run inside the laundry drum jacket substantially along a helix. The slanting of the drivers takes place in all cases with the aim of influencing the movement of the laundry or the entry of mechanical energy into the laundry.
  • Such drum washing machines are known for example from DE-PS 537 758, DE-PS 576523, FR 1 136 981 and DE 44 12 718 AI.
  • Drum washing machines are also known in which, with the inclination of the drivers, an axial transport of the laundry within the drum becomes easier as it rotates. In the drum washing machine known from DE-GM 88 04 246, the removal of the Laundry supports.
  • a washing machine according to the preamble of claim 1 is known (DE 19925 917 AI), in which the drivers scoop water in the deepest area of the tub to raise it when the washing drum rotates and from a raised position through openings in the to wash the laundry underneath. In doing so, they convey the soaked liquor to the front, where the scooped amount of liquid can no longer hit small items of laundry, which experience has shown that they can be transported to the rear area (away from the loading opening) when the lower surface line is inclined. As a result, the wetting process of small items of laundry is delayed and ineffective because the amounts of liquid dispensed run through the flooding holes in the drum jacket before they can reach the laundry.
  • the invention has for its object to improve the wettability in particular of small laundry items in a washing machine described above.
  • this object is achieved in that the drum shell in its front area, which measures about a quarter to about a third of the total depth of the drum, has a total area of flood holes reduced by at least 50% compared to the rear area.
  • the result of this measure is that rain is now raised by the carriers and then transported away from the transported liquid quantities over the area which is not very perforated and then flows onto the inside surface of the laundry. This shortens the wetting process compared to the prior art and leads small items of laundry to more effective wetting. This also intensifies the exchange of lye for the entire washing process.
  • the measure according to the invention further reduces the so-called radial pump effect of the rotating laundry drum, in which from the arranged loading opening, air is sucked out of the tub and pushed back into the tub through uncovered flood holes. This effect leads to the fact that leached-off lye is carried away from the cuff area of the loading opening and the laundry is undesirably rewetted.
  • the flood holes in the front area are the same size as in the rear area, but reduced in number, or in the front area compared to those in the rear area have a smaller clear width, the wetting is also already significantly accelerated. At higher suds levels in the suds container, e.g. B. when washing the laundry, but the, if few, flood holes in the front area can still be helpful.
  • the hole-free front area is provided with groove-like embossments.
  • the embossments should be placed in a direction that supports the draining of water that has been thrown off. This will be the case in particular if, according to an advantageous embodiment of the invention, the groove-like embossments aim at hole spacings in the rear area and end in front of the rear area.
  • FIG. 1 shows the vibrating unit of a washing machine according to the invention consisting of a tub and laundry drum with drivers in a side view
  • FIG. 2 shows a stretched section of a jacket sheet section of a first variant of a laundry drum designed according to the invention
  • FIG. 3 shows a representation of a second variant according to FIG. 2,
  • FIGS. 2 and 3 shows a representation of a third variant according to FIGS. 2 and
  • FIG. 5 shows an illustration of a fourth variant according to FIG. 2.
  • the unit 1 which is suspended in a swinging manner, consists essentially of the tub 4 and the laundry drum 5, which is at least approximately concentrically mounted therein
  • the axis of rotation 6 of the laundry drum 5 rises towards the front loading opening 7 of the tub 4 at an angle of, for example, 15 °. This makes the loading opening easy to use User panned.
  • the laundry drum is mounted in a hub 8 on the rear bottom 9 of the tub 4 with a stable pin 10 in the usual manner. It is cylindrical; therefore, the lower surface line 1 of the laundry drum 5 rises by the same angle as its axis of rotation 6 to the front.
  • three drivers 12 are attached evenly distributed. On the one hand, they serve in the usual way to lift laundry during the rotation of the laundry drum 5, which is mechanically processed by falling back into the drum base from a greater or lesser height after being lifted and thereby releasing dirt particles together with the lye wetting them.
  • these drivers 12 also serve for scooping liquid which, during the washing process, is a part, namely the free liquor 13, of the entire liquid located in the tub in the lower rear part of the tub 4. From this free fleet, portions are removed from each driver 12 via liquid inlets 14 whenever the driver in question is at the lowest point of its circular path.
  • the drivers 12 are installed at an angle to the direction of rotation of the laundry drum 12, contrary to the otherwise normal, rectangular installation position. They are also curved convexly in the direction of drum rotation. Therefore, the scooped liquid inside the drivers 12 is lifted up during the rotation of the drum and transported to the same extent as the driver's curvature tilts over during the rotation.
  • the drivers 12 have a number of openings 16 in the front area, particularly on their convexly curved flanks 15, for dispensing the scooped amounts of liquid.
  • the drivers In the concave flank 17, the drivers have no or only a very few such openings, and these only from and very close to the ridge edge 18. It is thus possible to pour the largest proportion of the scooped amounts of liquid over the laundry parts lying down. At the same time, however, due to the inclined position of the axis of rotation 6, considerable portions of the scooped amounts of liquid are also passed onto the laundry items located further back in the drum 5.
  • Fig. 1 it is not shown that the jacket of the washing drum 5 is perforated by means of flood holes in such a way that a constant lye exchange can take place between the interior of the rotating washing drum and the free liquor 13.
  • the aim is always to have as much lye per unit of time the laundry is flooded.
  • flooding holes are also arranged in the drum jacket in the front area in accordance with a washing machine described at the outset, then too much of the liquor which has been rained down by the scoops over the laundry is immediately passed to these flooding holes without their wetting and there released again from the drum.
  • This effect is most pronounced, of course, the less laundry there is in the drum; because if the foremost flood holes are exposed due to a small amount of laundry, the rainy amount of water escapes for the most part through these flood holes without having touched the laundry at all.
  • the washing drum of a washing machine designed according to the invention has no or only a reduced number or size of flood holes in the front area, so that a drained amount of alkali, which has not yet been absorbed by the laundry, remains sufficiently long on the bottom of the front Area of the laundry drum remains until it has been absorbed by the laundry overlying it.
  • no flood holes are provided in the front area 19 of the drum casing 20, unlike in the rear area 21, in which flood holes 22 are arranged in the usual way.
  • This surface is completely water-impermeable, so that the alkali impinging on it from the longest can remain available for wetting for the longest.
  • the total area of all the flood holes arranged in the front area is reduced compared to the rest of the area. According to FIG. 3, this can be represented by a reduction in the number of otherwise equally large flood holes 23 or, according to FIG. 4, by an equally large number of flood holes 24 with a reduced cross section. Any type of mixed forms, in which flood holes with several different diameters or cross sections can also be used, are also conceivable under the same inventive concept.
  • groove-shaped depressions 25 are arranged in this front area 19, which are formed on the surface with the usual flood holes 22. equipped area 21 are directed towards.
  • the grooves can be spiraled in one or the other or in both directions. For immediate drainage of water collected in this way, it is helpful if the grooves in area 21 of the usual flood holes meet the foremost flood holes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

L'enveloppe (20) du tambour à linge présente, dans sa zone arrière, des trous d'injection (22) permettant l'échange du bain de lavage (13) entre l'intérieur du tambour et l'intérieur d'un bac (4) à lessive, entourant ce tambour, et, en position de fonctionnement d'un lave-linge, la ligne la plus basse de l'enveloppe s'écarte d'une ligne horizontale en remontant vers l'avant. Des poussoirs (12) creux allongés, qui sont conçus pour recevoir des quantités de liquide à partir de leur position la plus basse, soulever ces quantités lors de la rotation du tambour (5) et, à partir d'une position soulevée, injecter lesdites quantités à l'intérieur du tambour, n'humidifient pas suffisamment le linge situé dans la zone avant. Cet effet s'amplifie lorsque la quantité de linge est réduite. L'objectif de cette invention est de permettre une pénétration dans le linge plus efficace de l'eau injectée à l'intérieur du tambour. A cet effet, l'enveloppe (20) du tambour selon l'invention présente, dans sa zone avant (19), qui représente un quart à environ un tiers de la profondeur totale du tambour (5), une surface totale de trous d'injection (23, 24) réduite d'au moins 50 % par rapport à celle de la zone arrière (21).
EP05707793A 2004-01-22 2005-01-18 Lave-linge a chargement frontal, pourvu d'un tambour rotatif Withdrawn EP1709231A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003346A DE102004003346A1 (de) 2004-01-22 2004-01-22 Von vorn beschickbare Waschmaschine mit einer drehbaren Wäschetrommel
PCT/EP2005/050183 WO2005071154A2 (fr) 2004-01-22 2005-01-18 Lave-linge a chargement frontal, pourvu d'un tambour rotatif

Publications (1)

Publication Number Publication Date
EP1709231A2 true EP1709231A2 (fr) 2006-10-11

Family

ID=34745016

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05707793A Withdrawn EP1709231A2 (fr) 2004-01-22 2005-01-18 Lave-linge a chargement frontal, pourvu d'un tambour rotatif

Country Status (6)

Country Link
US (1) US20080271498A1 (fr)
EP (1) EP1709231A2 (fr)
KR (1) KR100810397B1 (fr)
CN (1) CN1910314A (fr)
DE (1) DE102004003346A1 (fr)
WO (1) WO2005071154A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007004056B4 (de) * 2007-01-22 2010-08-05 Miele & Cie. Kg Waschmaschine umfassend ein Waschaggregat mit einem Laugenbehälter, in dem eine drehbar gelagerte Trommel angeordnet ist
GB201002245D0 (en) * 2010-02-10 2010-03-31 Xeros Ltd Improved cleaning apparatus and method
EP2363524B1 (fr) * 2010-02-12 2013-06-19 Asko Appliances AB Pale de tambour pour machine à laver
EP2832916B1 (fr) * 2013-07-31 2018-03-07 Electrolux Appliances Aktiebolag Machine de traitement de linge comprenant un tambour rotatif
US11898292B2 (en) * 2018-12-18 2024-02-13 Samsung Electronics Co., Ltd. Washing machine
CN114855406B (zh) * 2021-01-20 2026-03-06 青岛海尔滚筒洗衣机有限公司 一种滚筒组件及衣物处理装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2391634A (en) * 1942-01-12 1945-12-25 Baird Machine Co Washing barrel
US2637189A (en) * 1947-09-20 1953-05-05 Easy Washing Machine Corp Laundry machine
DD283894A7 (de) * 1988-10-26 1990-10-31 Veb Waschgeraetewerk Schwarzenberg,Dd Einrichtung zum trennen der waschflotte von der waesche
DE19712086A1 (de) * 1997-03-22 1998-09-24 Aeg Hausgeraete Gmbh Waschtrommel für eine Waschmaschine
JP2000325688A (ja) * 1999-05-21 2000-11-28 Sharp Corp ドラム式洗濯機
DE19925917A1 (de) * 1999-06-07 2000-12-14 Bsh Bosch Siemens Hausgeraete Von vorn beschickbare Waschmaschine mit einer drehbaren Wäschetrommel
DE10205306B4 (de) * 2002-02-08 2006-12-28 BSH Bosch und Siemens Hausgeräte GmbH Trommelwaschmaschine mit einer von vorn beschickbaren Wäschetrommel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005071154A2 *

Also Published As

Publication number Publication date
WO2005071154A3 (fr) 2006-02-02
KR20060116225A (ko) 2006-11-14
KR100810397B1 (ko) 2008-03-04
DE102004003346A1 (de) 2005-08-11
WO2005071154A2 (fr) 2005-08-04
US20080271498A1 (en) 2008-11-06
CN1910314A (zh) 2007-02-07

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