EP2075362A1 - Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche - Google Patents

Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche Download PDF

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Publication number
EP2075362A1
EP2075362A1 EP20070124094 EP07124094A EP2075362A1 EP 2075362 A1 EP2075362 A1 EP 2075362A1 EP 20070124094 EP20070124094 EP 20070124094 EP 07124094 A EP07124094 A EP 07124094A EP 2075362 A1 EP2075362 A1 EP 2075362A1
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EP
European Patent Office
Prior art keywords
drum
speed
drying
clothes washing
drying 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.)
Granted
Application number
EP20070124094
Other languages
English (en)
French (fr)
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EP2075362B1 (de
Inventor
Silvano Cimetta
Andrea Mazzon
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.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP07124094.9A priority Critical patent/EP2075362B1/de
Priority to EP12153006A priority patent/EP2453052A1/de
Priority to RU2008151963/12A priority patent/RU2500846C2/ru
Publication of EP2075362A1 publication Critical patent/EP2075362A1/de
Application granted granted Critical
Publication of EP2075362B1 publication Critical patent/EP2075362B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying

Definitions

  • the present invention refers to a so-called washer-dryer, i.e. combined clothes washing and drying machine, preferably of the kind used in household and residential applications, for washing and drying loads of clothes in a same appliance.
  • washer-dryer i.e. combined clothes washing and drying machine, preferably of the kind used in household and residential applications, for washing and drying loads of clothes in a same appliance.
  • the above-cited aperture 4 is provided to draw in the air from the interior of the tub and, therefore, the thin hollow gap existing between the same tub and the rotating drum, and ultimately from the interior of the same rotating drum, thereby causing the air dwelling in the interior of the rotating drum to be forced back into said hollow gap by passing through the tiny perforations 6 provided in the side wall of the drum.
  • the hot air that is being blown into the drum - obviously from an aperture that is suitably provided in the zone of the bellows-like gasket, which is provided between the tub and the opening giving access into the drum, and which is of course firmly joined to the structure of the machine - will obviously tend to exit therefrom by flowing through the number of small perforations 6 provided in the cylindrical side wall of the same drum and, as a result, to follow a radial flowpath towards the outside.
  • the drum is driven to rotate at a low speed, as this generally occurs, actually, since the clothes - although just spin-dried - are still substantially wet, the same clothes will basically remain lying on the bottom of the drum, where it tumbles back and forth, i.e. first in a direction and then in the other one, following the reversals in the direction of rotation of the same drum, so as to avoid getting tangled.
  • the drum 1 is driven to rotate at a speed that is higher than the usual or normal one and, in particular, at a speed that shall be referred to as the "ventilation speed V" hereinafter, as represented in Figure 2 , in such manner that the washload is substantially lifted off the bottom of the drum and distributed therewithin, thereby spreading out - due to the effect of the centrifugal force - over the entire inner cylindrical surface of the same drum.
  • the rotational speed of the drum therefore, must be selected so as to be high enough to cause the still wet washload to lift off the bottom of the drum, as this is shown symbolically in Figure 3 .
  • EP 1 354 997 B1 is a clothes washing machine in which, in accordance with the amount of clothes to be washed, the drum is driven to rotate at different speeds; in particular, when there is a great amount of clothes to be washed, the time interval selected for the rotational speed of the drum to rise from the minimum to the maximum value thereof is longer than the same speed interval when a smaller amount of clothes is loaded in the drum for washing.
  • the present improvement teaches to vary the rotational speed of the drum - between a reversal and the following one - from a maximum value (V max ) and a minimum value (V min ) thereof, and vice-versa, for a plurality of times.
  • V max maximum value
  • V min minimum value
  • such variation in the rotational speed of the drum must be such as to duly allow for the actual amount of clothes loaded in the drum for washing, since - as it is largely known - the greater the amount of clothes in the washload, the higher the likelihood for the washload to get tangled.
  • this improvement is based on introducing a modification factor for the rotational speed of the drum during the washing phase in accordance with the actual weight of the washload. In detail, this occurs as follows:
  • This speed variation which preferably occurs at constant values so as to practically follow a pattern in the shape of the battlements of a tower, is therefore such to ensure that - without any need arising for the rotation of the drum to be stopped - the washload is able to disrupt from its configuration and change its arrangement, so as to avoid the afore-described undesired tangling effect (see Figure 8 ).
  • said two values of the rotational speed of the drum must most obviously be selected in a proper manner; in particular, it is preferable if, during the rotation of the drum at V max , the washload spreads out along the cylindrical periphery of the drum, whereas, at the opposite speed V min , the washload should on the contrary fall back onto the bottom of the drum.
  • the weight of the washload may of course be directly input, i.e. fed into the control unit of the machine by different means and methods.
  • the control unit of the machine In the most immediate and simple of such methods, it is the same user that delivers an appropriate command to the machine; other methods - all of which largely known as such in the art - work in a variety of different manners, e.g. by measuring the inertia of the loaded drum on the basis of the motor torque, or the power used by the motor, or on the basis of the amount of water soaked up by the clothes, and so on.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
EP07124094.9A 2007-12-27 2007-12-27 Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche Active EP2075362B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07124094.9A EP2075362B1 (de) 2007-12-27 2007-12-27 Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche
EP12153006A EP2453052A1 (de) 2007-12-27 2007-12-27 Verbesserungen bei einer Wasch- und Trocknermaschine
RU2008151963/12A RU2500846C2 (ru) 2007-12-27 2008-12-26 Усовершенствованная машина для стирки и сушки белья

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07124094.9A EP2075362B1 (de) 2007-12-27 2007-12-27 Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP12153006A Division-Into EP2453052A1 (de) 2007-12-27 2007-12-27 Verbesserungen bei einer Wasch- und Trocknermaschine

Publications (2)

Publication Number Publication Date
EP2075362A1 true EP2075362A1 (de) 2009-07-01
EP2075362B1 EP2075362B1 (de) 2015-11-04

Family

ID=39495749

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12153006A Withdrawn EP2453052A1 (de) 2007-12-27 2007-12-27 Verbesserungen bei einer Wasch- und Trocknermaschine
EP07124094.9A Active EP2075362B1 (de) 2007-12-27 2007-12-27 Verbesserungen für eine Wasch- und Trocknungsmaschine für Wäsche

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12153006A Withdrawn EP2453052A1 (de) 2007-12-27 2007-12-27 Verbesserungen bei einer Wasch- und Trocknermaschine

Country Status (2)

Country Link
EP (2) EP2453052A1 (de)
RU (1) RU2500846C2 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2868793A1 (de) * 2013-11-05 2015-05-06 Whirlpool Corporation Verfahren zur Verbesserung der Waschleistungen einer Waschmaschine und Horizontalachsen-Waschmaschine mit solch einem Verfahren
EP2511412A3 (de) * 2011-04-11 2017-10-04 Gottlob Stahl Wäschereimaschinenbau GmbH Waschmaschine und Verfahren zu ihrer Steuerung

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0796942A2 (de) * 1996-03-19 1997-09-24 Kabushiki Kaisha Toshiba Wasch- und Trocknermaschine
GB2322141A (en) * 1997-02-12 1998-08-19 Toshiba Kk Control of spin-drying phase of washing machine
WO2001011134A1 (en) 1999-08-09 2001-02-15 Aktiebolaget Electrolux Laundry washing machine with steam drying
EP1164217A1 (de) * 1995-08-30 2001-12-19 Sharp Kabushiki Kaisha Trommeltrockner/Trommelwaschmaschine
EP1281803A1 (de) * 2001-07-31 2003-02-05 Samsung Electronics Co., Ltd. Waschmaschine
EP1302586A1 (de) 2001-10-10 2003-04-16 Electrolux Home Products Corporation N.V. Kombinierte Maschine zum Waschen und Trocknen von Wäsche
EP1538251A2 (de) * 2003-11-25 2005-06-08 Samsung Electronics Co., Ltd. Waschmaschine und Steuerungsverfahren dafür
EP1650338A2 (de) 2004-10-22 2006-04-26 LG Electronics, Inc. Wäschetrockner
EP1657343A1 (de) 2004-11-12 2006-05-17 LG Electronics, Inc. Waschmaschine mit Trockner und Verfahren zu dessen Steuerung
EP1354997B1 (de) 2002-04-16 2006-08-16 Miele & Cie. KG Verfahren zur Steuerung der Trommeldrehzahl einer programmgesteuerten Wäschebehandlungsmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4336350A1 (de) * 1993-10-25 1995-04-27 Bosch Siemens Hausgeraete Verfahren zum Bestimmen der Wäschemenge in einer Wäschebehandlungsmaschine
JP4111168B2 (ja) * 2004-05-18 2008-07-02 松下電器産業株式会社 ドラム式洗濯機

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1164217A1 (de) * 1995-08-30 2001-12-19 Sharp Kabushiki Kaisha Trommeltrockner/Trommelwaschmaschine
EP0796942A2 (de) * 1996-03-19 1997-09-24 Kabushiki Kaisha Toshiba Wasch- und Trocknermaschine
GB2322141A (en) * 1997-02-12 1998-08-19 Toshiba Kk Control of spin-drying phase of washing machine
WO2001011134A1 (en) 1999-08-09 2001-02-15 Aktiebolaget Electrolux Laundry washing machine with steam drying
EP1281803A1 (de) * 2001-07-31 2003-02-05 Samsung Electronics Co., Ltd. Waschmaschine
EP1302586A1 (de) 2001-10-10 2003-04-16 Electrolux Home Products Corporation N.V. Kombinierte Maschine zum Waschen und Trocknen von Wäsche
EP1354997B1 (de) 2002-04-16 2006-08-16 Miele & Cie. KG Verfahren zur Steuerung der Trommeldrehzahl einer programmgesteuerten Wäschebehandlungsmaschine
EP1538251A2 (de) * 2003-11-25 2005-06-08 Samsung Electronics Co., Ltd. Waschmaschine und Steuerungsverfahren dafür
EP1650338A2 (de) 2004-10-22 2006-04-26 LG Electronics, Inc. Wäschetrockner
EP1657343A1 (de) 2004-11-12 2006-05-17 LG Electronics, Inc. Waschmaschine mit Trockner und Verfahren zu dessen Steuerung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2511412A3 (de) * 2011-04-11 2017-10-04 Gottlob Stahl Wäschereimaschinenbau GmbH Waschmaschine und Verfahren zu ihrer Steuerung
EP2868793A1 (de) * 2013-11-05 2015-05-06 Whirlpool Corporation Verfahren zur Verbesserung der Waschleistungen einer Waschmaschine und Horizontalachsen-Waschmaschine mit solch einem Verfahren

Also Published As

Publication number Publication date
EP2075362B1 (de) 2015-11-04
RU2500846C2 (ru) 2013-12-10
EP2453052A1 (de) 2012-05-16
RU2008151963A (ru) 2010-07-10

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