DE4101981A1 - Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation - Google Patents

Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation

Info

Publication number
DE4101981A1
DE4101981A1 DE4101981A DE4101981A DE4101981A1 DE 4101981 A1 DE4101981 A1 DE 4101981A1 DE 4101981 A DE4101981 A DE 4101981A DE 4101981 A DE4101981 A DE 4101981A DE 4101981 A1 DE4101981 A1 DE 4101981A1
Authority
DE
Germany
Prior art keywords
washing
drum
laundry
exposed
ultrasonic radiation
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Withdrawn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
DE4101981A
Other languages
German (de)
Inventor
Rainer Dipl Phys Dr Stamminger
Guenter Ing Grad Ott
Alexandra Dipl Ing Reinhardt
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE4101981A priority Critical patent/DE4101981A1/en
Publication of DE4101981A1 publication Critical patent/DE4101981A1/en
Withdrawn legal-status Critical Current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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

Process for washing laundry items in a drum washing machine involves circulation of the washing in a washing drum under the influence of the drum movement. The washing is simultaneously exposed to ultrasonic radiation. The drum moves at less than 10 revolutions per min. and the washing is exposed to the ultrasonic radiation whilst in the washing solution. ADVANTAGE - The cleaning effect is enhanced.

Description

Die Erfindung betrifft ein Verfahren zum Waschen von Wäsche nach dem Oberbegriff der Patentansprüche 1 bzw. 2.The invention relates to a method for washing laundry after Preamble of claims 1 and 2, respectively.

Aus der DE-AS 12 78 981 ist ein Verfahren zum Waschen von Wäsche der in Rede stehenden Art bekannt. Bei diesem Verfahren wird die Wäsche durch die Trommelbewegung wiederholt aus der Waschlauge herausgehoben und außerhalb der Waschlauge dem Einfluß der Ultraschallbestrahlung ausgesetzt. Während des Heraushebens der Wäsche aus der Waschlauge wird zumindest ein Teil des im Gewebe gebundenen Wassers herauslaufen und durch Lufteinlagerungen im Gewebe ersetzt. Diese Lufteinlagerungen bleiben im Gewebe haften, auch wenn die Wäschestücke wieder in die Waschlauge eintauchen. Es ist aber bekannt, daß die in der Wäsche verbleibende Restluft der Einwirkung der Ultraschalleinwirkung entgegensteht. Wird die Waschtrommel aber während der Ultraschall-Einstrahlung nicht bewegt, so bilden die Ultraschallwellen in der Waschlauge Interferenzmuster, die zu einer ungleichmäßigen Reinigungswirkung führen können.From DE-AS 12 78 981 is a method for washing laundry in Known type known. In this process, the laundry is through the drum movement is repeatedly lifted out of the wash liquor and outside the wash liquor the influence of ultrasound radiation exposed. While the laundry is being lifted out of the wash liquor at least part of the water bound in the tissue runs out and replaced by air deposits in the tissue. This air retention stick to the fabric, even when the laundry is back in the Immerse the soapy water. But it is known that in the laundry Remaining residual air from exposure to ultrasound opposes. But if the washing drum during the Ultrasound radiation does not move, so the ultrasound waves form in the wash liquor interference pattern, which leads to an uneven Can lead cleaning effect.

Der Erfindung liegt die Aufgabe zugrunde, die Reinigungswirkung bei einem Verfahren zum Waschen von Wäsche in einer Trommelwaschmaschine der genannten Art weiter zu verbessern. The invention has for its object the cleaning effect a method for washing laundry in a drum washing machine mentioned type to improve further.  

Die Lösung dieser Aufgabe gemäß der Erfindung ist dem kennzeichnenden Teil des Patentanspruches 1 bzw. 2 zu entnehmen. Vorteilhafte weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The solution to this problem according to the invention is the characteristic Part of claim 1 or 2 can be seen. Advantageous further refinements of the invention are in the Subclaims specified.

Dadurch, daß die zu waschende Wäsche während der Trommelbewegung und damit beim Umschichten vollständig in der Waschlauge eingetaucht bleibt und dabei gleichzeitig der Ultraschallbestrahlung ausgesetzt wird, wird eine wesentlich gleichmäßigere und damit bessere Reinigungswirkung bei allen Wäschestücken der Trommelbeladung erreicht.The fact that the laundry to be washed during the drum movement and so that it remains completely immersed in the wash liquor when switching and at the same time being exposed to ultrasound radiation a much more uniform and therefore better cleaning effect all laundry items of the drum load reached.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung näher erläutert.An embodiment of the invention is based on the Drawing explained in more detail.

Die in der Zeichnung dargestellte programmgesteuerte Trommelwaschmaschine 1 hat einen Laugenbehälter 2, in dem eine perforierte Waschtrommel 3 umlaufend untergebracht ist. Vom Bodenbereich des Laugenbehälters 2 führt ein faltenbalgartiger Wasserablauf 4 zu einer Entleerungspumpe 5. Dem Laugenbehälter 2 sind mehrere Ultraschallgeber 6, 6′ zugeordnet. Mit 7 ist das Waschgut bezeichnet, das in der Waschlauge 8 vollständig ein- bzw. untergetaucht ist.The program-controlled drum washing machine 1 shown in the drawing has a tub 2 , in which a perforated washing drum 3 is housed all around. A bellows-type water drain 4 leads from the base area of the tub 2 to an emptying pump 5 . The tub 2 are assigned several ultrasound transmitters 6 , 6 '. 7 with the laundry is designated, which is completely immersed or submerged in the wash liquor 8 .

Die Wirkungsweise dieser Waschmaschine ist folgende:This washing machine works as follows:

Während des Ultraschall-Waschprozesses wird das Waschgut 7 in der Waschtrommel 3 unter dem Einfluß der Trommelbewegung umgewälzt und dabei gleichzeitig der Ultraschallbestrahlung durch die Ultraschallgeber 6, 6′ ausgesetzt. Die Waschtrommel 3 wird aber nur < 10 Umdrehungen/min bewegt, so daß während dieser Trommelbewegung das Waschgut 7 mit Sicherheit auch innerhalb der Waschlauge 8 verbleibt. Gemäß einer anderen vorteilhaften Verfahrensweise wird die Waschtrommel 3 während der Ultraschallbestrahlung nur um einen kleinen Drehwinkelbereich bewegt, der zweckmäßig unter 30 Winkelgrade, vorzugsweise zwischen 3 und 10 Winkelgrade gelegt ist. Die Drehung bzw. Bewegung der Wäschetrommel 2 kann dabei in einer Drehrichtung oder reversierend durchgeführt werden.During the ultrasound washing process, the items to be washed 7 are circulated in the washing drum 3 under the influence of the drum movement and at the same time are exposed to ultrasound radiation by the ultrasound transmitter 6 , 6 '. The washing drum 3 is, however, only moved <10 revolutions / min, so that during this drum movement the items 7 to be washed remain with certainty also in the washing liquor 8 . According to another advantageous procedure, the washing drum 3 is moved during the ultrasound irradiation only by a small rotation angle range, which is expediently set at 30 degrees, preferably between 3 and 10 degrees. The rotation or movement of the laundry drum 2 can be carried out in one direction of rotation or reversing.

Claims (4)

1. Verfahren zum Waschen von Wäsche in einer Trommelwaschmaschine, wobei die Wäsche in einer Waschtrommel unter dem Einfluß der Trommelbewegung umgewälzt und gleichzeitig einer Ultraschallbestrahlung ausgesetzt wird, dadurch gekennzeichnet, daß die Waschtrommel < 10 Umdrehungen/min bewegt und die Wäsche innerhalb der Waschlauge der Ultraschallbestrahlung ausgesetzt wird.1. A method of washing laundry in a drum washing machine, the laundry being circulated in a washing drum under the influence of the drum movement and at the same time being exposed to ultrasound radiation, characterized in that the washing drum moves <10 revolutions / min and the laundry within the wash liquor of the ultrasound radiation is exposed. 2. Verfahren zum Waschen von Wäsche, wobei die Wäsche in einer Waschtrommel unter dem Einfluß der Trommelbewegung umgewälzt und gleichzeitig einer Ultraschallbestrahlung ausgesetzt wird, dadurch gekennzeichnet, daß die Waschtrommel impulsartig um einen kleinen Drehwinkelbereich bewegt und die Wäsche innerhalb der Waschlauge der Ultraschallbestrahlung ausgesetzt wird.2. Method of washing laundry, the laundry being in one Wash drum tumbled and under the influence of the drum movement exposed to ultrasonic radiation at the same time characterized in that the washing drum pulse by a small Angle range moves and the laundry within the wash liquor Ultrasound radiation is exposed. 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der Drehwinkelbereich für die Wäschetrommel unter 30 Winkelgrade, vorzugsweise zwischen 3 und 10 Winkelgrade gelegt ist.3. The method according to claim 2, characterized in that the Angle of rotation range for the laundry drum under 30 angular degrees, is preferably between 3 and 10 degrees. 4. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Drehung bzw. Bewegung der Waschtrommel in eine Richtung oder reversierend durchgeführt wird.4. The method according to claim 1 or 2, characterized in that the Rotation or movement of the washing drum in one direction or is performed reversing.
DE4101981A 1991-01-24 1991-01-24 Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation Withdrawn DE4101981A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4101981A DE4101981A1 (en) 1991-01-24 1991-01-24 Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4101981A DE4101981A1 (en) 1991-01-24 1991-01-24 Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation

Publications (1)

Publication Number Publication Date
DE4101981A1 true DE4101981A1 (en) 1992-07-30

Family

ID=6423586

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4101981A Withdrawn DE4101981A1 (en) 1991-01-24 1991-01-24 Washing laundry in drum washing machine - by revolving drum at less than 10 rpm whilst exposing washing to ultrasonic radiation

Country Status (1)

Country Link
DE (1) DE4101981A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406178A1 (en) * 1994-02-25 1995-08-31 Mueller Semtec Ohg Washing machine has container
DE19607120A1 (en) * 1996-02-26 1997-08-28 Deinlein Kalb Hans Improving cleaning efficiency of washing machines
US20100146713A1 (en) * 2008-11-21 2010-06-17 Yoav Medan Method and Apparatus for Washing Fabrics Using Focused Ultrasound
ITTO20100853A1 (en) * 2010-10-21 2012-04-22 Indesit Co Spa WASHING MACHINE, IN A SPECIAL WASHING MACHINE

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091076B (en) * 1956-08-24 1960-10-20 Karl Roll Device for cleaning objects using ultrasound
DE3534584A1 (en) * 1984-05-17 1987-04-02 Masao Kanazawa WASHING MACHINE WORKING WITH VIBRATING MOVEMENTS
EP0235686A1 (en) * 1986-03-01 1987-09-09 Henkel Kommanditgesellschaft auf Aktien Process for the laundering and/or cleaning of dirty textiles
DE3631727A1 (en) * 1986-09-18 1988-03-24 Henkel Kgaa Improved process for washing and cleaning textiles (III)
DE3631318A1 (en) * 1986-09-15 1988-03-24 Henkel Kgaa Improved process for the washing and cleaning of textiles
EP0288378A1 (en) * 1987-04-21 1988-10-26 Jean Blasutti Ultrasonic waves washing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1091076B (en) * 1956-08-24 1960-10-20 Karl Roll Device for cleaning objects using ultrasound
DE3534584A1 (en) * 1984-05-17 1987-04-02 Masao Kanazawa WASHING MACHINE WORKING WITH VIBRATING MOVEMENTS
EP0235686A1 (en) * 1986-03-01 1987-09-09 Henkel Kommanditgesellschaft auf Aktien Process for the laundering and/or cleaning of dirty textiles
DE3631318A1 (en) * 1986-09-15 1988-03-24 Henkel Kgaa Improved process for the washing and cleaning of textiles
DE3631727A1 (en) * 1986-09-18 1988-03-24 Henkel Kgaa Improved process for washing and cleaning textiles (III)
EP0288378A1 (en) * 1987-04-21 1988-10-26 Jean Blasutti Ultrasonic waves washing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406178A1 (en) * 1994-02-25 1995-08-31 Mueller Semtec Ohg Washing machine has container
DE19607120A1 (en) * 1996-02-26 1997-08-28 Deinlein Kalb Hans Improving cleaning efficiency of washing machines
US20100146713A1 (en) * 2008-11-21 2010-06-17 Yoav Medan Method and Apparatus for Washing Fabrics Using Focused Ultrasound
ITTO20100853A1 (en) * 2010-10-21 2012-04-22 Indesit Co Spa WASHING MACHINE, IN A SPECIAL WASHING MACHINE
EP2443981A3 (en) * 2010-10-21 2012-05-23 Indesit Company S.p.A. A washing machine, in particular a laundry washing machine

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8120 Willingness to grant licences paragraph 23
8139 Disposal/non-payment of the annual fee