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WO2008000609A1 - Procédé pour le traitement de linge ainsi qu'une machine à laver programmée appropriée à cet effet - Google Patents

Procédé pour le traitement de linge ainsi qu'une machine à laver programmée appropriée à cet effet Download PDF

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Publication number
WO2008000609A1
WO2008000609A1 PCT/EP2007/055684 EP2007055684W WO2008000609A1 WO 2008000609 A1 WO2008000609 A1 WO 2008000609A1 EP 2007055684 W EP2007055684 W EP 2007055684W WO 2008000609 A1 WO2008000609 A1 WO 2008000609A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
laundry
tub
washing machine
water
Prior art date
Application number
PCT/EP2007/055684
Other languages
German (de)
English (en)
Inventor
Christine Meissner
Stephan Sommer
Original Assignee
BSH Bosch und Siemens Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2008000609A1 publication Critical patent/WO2008000609A1/fr

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
    • 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
    • D06F39/087—Water level measuring or regulating devices
    • 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
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/18—Washing liquid level
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps

Definitions

  • the invention relates to a method for treating laundry in a program-controlled washing machine and to a washing machine which is particularly suitable for carrying out this method.
  • the invention relates to a method of treating laundry having a wetting phase which is particularly suitable for high loadings of laundry (large laundry items) in a washing machine equipped without a bypass for the supply of water from the wash-in bowl to the cuff rinse.
  • the wetting phase should be optimized so that each batch of laundry in the tub before the actual washing process with a tuned to the laundry amount of water in the shortest possible time completely and evenly wetted.
  • the washing machine sometimes pulls water after the heating of the washing machine is already switched off. Either it does not come or too late to a complete moistening of the laundry. This results in an incomplete especially for large laundry items with a high packing density Moisture in the wetting phase and thus to a correspondingly poorer cleaning of the laundry.
  • DE 10 2004 039 662 A1 describes a program-controlled washing machine with a wetting process, which can be adapted to the amount of laundry in a laundry drum rotatably mounted in a tub about a non-vertical axis by means of a water supply system and a control device, by which the supply of water is temporally controllable in the tub, wherein the wetting process in as many phases (Ph1 to Ph3) is divided, as quantity levels (small, medium, large) are provided for the laundry to be treated.
  • the object of the invention was therefore to provide a method for treating laundry in a program-controlled washing machine, in which the wetting phase allows the complete wetting of large items of laundry.
  • the invention thus relates to a method for the treatment of laundry in a program-controlled washing machine with a liquor drain system arranged at the bottom of a tub with a drain pump, with a sensor for determining a level of the liquid in the tub, the sensor signal is recorded during the process, and a drum , wherein in a wetting phase
  • step b) 30 seconds to 5 minutes after the beginning of step a) is switched to a reversing rhythm with a duration of 30 seconds to 10 minutes, preferably from 90 seconds to 4 minutes, in which the drum (2) at a speed D 2 , which is greater than the rotational speed D 1 and is from 30 to 70 revolutions per minute, preferably from 40 to 55 rpm, with a short turn-on and turn-off times repeatedly changes the direction of rotation.
  • the inventive method is particularly suitable for the treatment of laundry items of at least 5 kg, preferably from 6 kg to 10 kg.
  • the switch-on and switch-off are short according to the invention. In general, the switch-on and switch-off times are up to 20 seconds.
  • the duration of process step a) is generally shorter in washing machines with a scooping system than in a non-scooping system.
  • scooping devices for the water present in the tub are present in the drum of the washing machine. The water is taken with a rotation in the direction of creation and given off when it reaches a higher level during the rotation of the drum (poured into the laundry items).
  • the duration of step a) in a process according to the invention with a scooping system is 30 seconds to 10 minutes.
  • process step a) may take 8 minutes for a non-exhausting system and 4 minutes for a priming system.
  • process step b) begins 2 minutes after the start of Process step a).
  • the drum is operated in reversing rhythm with 50 rpm with short on and off times for a period of 2 minutes.
  • the hydrostatic pressure p measured with the aid of the sensor can be compared with the amount of water charged.
  • the laundry in the drum absorbs water, which therefore can not contribute to an increase in the hydrostatic pressure.
  • the amount of laundry and its degree of wetness degree of wetting
  • the duration of the wetting phase can be tuned very precisely to the predetermined amount of laundry.
  • water is preferably introduced into the tub via a preset hysteresis, preferably via a small hysteresis.
  • hysteresis is the pressure difference between the pressure at the upper switching point for the water supply and the pressure at the lower switching point for the water supply.
  • the pressure at the upper switching point is generally chosen to be the threshold value p.sub.1 Pressure difference (hysteresis) in the range of 10 to 150 Pa, more preferably from 20 to 100 Pa and most preferably in the range of 30 to 70 Pa.
  • step a) size of the laundry item it can be decided according to a further embodiment of the invention based on the possibly determined in step a) size of the laundry item, whether further treatment steps are performed.
  • the water supply can also be interrupted.
  • the direction of rotation of the laundry drum corresponds to the direction of the effectiveness of a scooping device.
  • the laundry is thoroughly moistened, so that the amount of the accumulated water can be determined more accurately.
  • a measuring device may be present, for example a time-measuring device for determining the opening period of a feed valve for the water or a liquid-volume measuring device for measuring the amount of liquid introduced.
  • the invention also relates to a washing machine with a program control for controlling the program flow, a rotatably mounted in a tub drum, a at the bottom of the tub arranged Laugenablaufsystem with a drain pump, a drive motor for the drum, a heater, a sensor for determining the height of in the tub liquid and switching means for rotating and stopping the drum, wherein the switching means and the sensor can perform the method of the invention.
  • a washing machine with a program control for controlling the program flow
  • a rotatably mounted in a tub drum a at the bottom of the tub arranged Laugenablaufsystem with a drain pump, a drive motor for the drum, a heater, a sensor for determining the height of in the tub liquid and switching means for rotating and stopping the drum, wherein the switching means and the sensor can perform the method of the invention.
  • FIG 1 is a schematic representation of the relevant parts of the invention for a washing machine in which a method according to the invention can be carried out.
  • the washing machine of the embodiment shown in Figure 1 comprises a tub 1, in which a drum 2 rotatably mounted and can be operated by the drive motor 14.
  • the rotation axis 3 of the drum 2 is directed from the horizontal by a small angle (for example 13 °) forwardly upwards, so that one has easier access and insight into the interior of the drum 2.
  • the washing machine also has a liquor inlet system, which includes a water connection fitting for the domestic water network 8, an electrically controllable valve 9 and a supply line 10 to the tub 1, which may optionally also be guided via a dispenser 1, from the incoming water detergent portions in the Lye container 1 can transport.
  • a heater 13 in the tub 1, a heater 13.
  • the valve 9 as well as the heater 13 can be controlled by a program control 12 in response to a flowchart, the to a time program and / or to achieve certain measurements of parameters such as liquor level, liquor temperature , Rotational speed of the drum, etc., within the washing machine, in particular, may be bound to the threshold value specified in method step a).
  • 15 means a sensor for measuring the hydrostatic pressure p in the tub 1.
  • the method according to the invention has many advantages. During the mesh phase, an effective redistribution of the laundry and thus an efficient re-drawing of water can take place at a much earlier time than with known methods. For the same duration of the mesh phase, a uniform sufficient moisture penetration of the laundry is ensured, so that with uniform wetting the laundry is wetted before the actual washing process with the optimum amount of water or alkali. With the method according to the invention, a faster thorough wetting of laundry can be realized.
  • the amount of laundry to be treated can be estimated in a simple and reliable manner in order to adapt the further course of the wetting phase. In particular, it is easy to differentiate between different items of laundry.
  • the wetting phase can be adapted to large laundry items.

Landscapes

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

Abstract

L'invention concerne un procédé pour le traitement de linge dans une machine à laver programmée comprenant un système d'évacuation d'eau de rinçage placé au fond d'un réservoir d'eau de rinçage (1) avec une pompe d'eau de rinçage, un capteur (15) pour la détermination d'une hauteur du liquide se trouvant dans le réservoir d'eau de rinçage, dont le signal de capteur est affiché pendant le procédé, et un tambour (2). Ce procédé est caractérisé en ce que, dans une phase de mouillage a) pendant la rotation du tambour (2) avec un nombre de tours D1 de 25 à 50 rotations par minute pendant un intervalle de 1 à 15 minutes, de l'eau est amenée jusqu'à obtention d'un seuil prescrit p1 pour la pression hydrostatique p dans le réservoir d'eau de rinçage (1), et b) de 30 secondes à 5 minutes après le début de l'étape a), il y a commutation sur un rythme inversé avec une durée de 30 secondes à 10 minutes, pendant lequel le tambour (2) à un nombre de tours D2 qui est plus important que le nombre de tours D1 et qui s'élève de 30 à 70 rotations par minute, varie plusieurs fois le sens de rotation avec des temps courts de mise en marche et d'arrêt. L'invention concerne également une machine à laver appropriée à l'exécution du procédé.
PCT/EP2007/055684 2006-06-29 2007-06-11 Procédé pour le traitement de linge ainsi qu'une machine à laver programmée appropriée à cet effet WO2008000609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006029948A DE102006029948A1 (de) 2006-06-29 2006-06-29 Verfahren zur Behandlung von Wäsche sowie hierzu geeignete programmgesteuerte Waschmaschine
DE102006029948.5 2006-06-29

Publications (1)

Publication Number Publication Date
WO2008000609A1 true WO2008000609A1 (fr) 2008-01-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/055684 WO2008000609A1 (fr) 2006-06-29 2007-06-11 Procédé pour le traitement de linge ainsi qu'une machine à laver programmée appropriée à cet effet

Country Status (2)

Country Link
DE (1) DE102006029948A1 (fr)
WO (1) WO2008000609A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2202343B1 (fr) * 2008-12-18 2017-04-12 BSH Hausgeräte GmbH Procédé de traitement du linge ainsi que lave-linge adapté
DE102016225146B3 (de) * 2016-12-15 2018-05-03 BSH Hausgeräte GmbH Wäschepflegegerät mit einer Steuerung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234473A1 (de) * 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum beschleunigten Benetzen von Wäsche in einer Trommelwaschmaschine
DE102004039662A1 (de) * 2004-08-16 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Programmgesteuerte Waschmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10234473A1 (de) * 2002-07-29 2004-02-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum beschleunigten Benetzen von Wäsche in einer Trommelwaschmaschine
DE102004039662A1 (de) * 2004-08-16 2006-02-23 BSH Bosch und Siemens Hausgeräte GmbH Programmgesteuerte Waschmaschine

Also Published As

Publication number Publication date
DE102006029948A1 (de) 2008-01-03

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