EP0433157A1 - Verfahren zur Erzielung des Trommelstillstandes einer Waschmaschine mit der Verschlussklappe der Trommel flüchtend unter dem Deckel der Waschmaschine und Waschmaschine zum Durchführen dieses Verfahrens - Google Patents

Verfahren zur Erzielung des Trommelstillstandes einer Waschmaschine mit der Verschlussklappe der Trommel flüchtend unter dem Deckel der Waschmaschine und Waschmaschine zum Durchführen dieses Verfahrens Download PDF

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Publication number
EP0433157A1
EP0433157A1 EP90403520A EP90403520A EP0433157A1 EP 0433157 A1 EP0433157 A1 EP 0433157A1 EP 90403520 A EP90403520 A EP 90403520A EP 90403520 A EP90403520 A EP 90403520A EP 0433157 A1 EP0433157 A1 EP 0433157A1
Authority
EP
European Patent Office
Prior art keywords
drum
unbalance
laundry
door
washing 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
EP90403520A
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English (en)
French (fr)
Other versions
EP0433157B1 (de
Inventor
Michel Kubacsi
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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.)
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Publication date
Application filed by Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Publication of EP0433157A1 publication Critical patent/EP0433157A1/de
Application granted granted Critical
Publication of EP0433157B1 publication Critical patent/EP0433157B1/de
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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D06F37/302—Automatic drum positioning
    • 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
    • D06F2103/26—Imbalance; Noise 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/30—Control of washing machines characterised by the purpose or target of the control 
    • D06F33/48—Preventing or reducing imbalance or noise
    • 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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/20—Parameters relating to constructional components, e.g. door sensors

Definitions

  • the present invention relates to a method of stopping a drum of a washing machine putting the door of the drum facing the door of the washing machine and a washing machine implementing such a method.
  • a laundry drum usually comprises after an end spin an imbalance formed by poorly distributed laundry. This imbalance creates an imbalance there so that the drum after being immobilized by stopping the drive motor does not remain in its stopped position.
  • the known methods of stopping the drum usually use a mechanical or electromechanical locking means. This means of blocking the laundry drum does not simplify the structure of the washing machine but on the other hand strikes the manufacturing cost of the latter.
  • the object of the present invention to avoid these drawbacks is a method for stopping a drum of a washing machine bringing the drum into stable equilibrium without using a locking means in position, and the door of the drum. facing the washing machine door.
  • the invention also relates to a washing machine implementing this method.
  • a method of stopping a drum of a washing machine putting the door of the drum facing the door of the washing machine comprises a reduction of an unbalance formed by linen badly distributed in the drum, in a zero residual unbalance or with an insensible imbalance effect, by a redistribution of the linen in the drum, and a stop of the drum by an end of a drive of the drum , at a predetermined time t p from the point in time when the drum door passes in front of the washing machine door.
  • a washing machine 1 produced according to the invention illustrated in FIGS. 1 and 2 comprises a body 2 provided in its upper wall, with a door 3 opening on top, a washing drum 4 provided with a door 5 , an axis of rotation 6 and a drive pulley 7 firmly fixed on this axis 6 and driven by an electric motor 8 via a belt 9.
  • the drum 4 is lined with washing laundry, a poor distribution of which forms an imbalance schematically indicated at 10.
  • the imbalance 10 creates in the drum 4 an imbalance which tends, when the washing machine 1 stops, to rotate the drum 4 in a stable equilibrium position where this unbalance 10 occupies the lowest part of the drum.
  • the unbalance 10 is in this case practically vertical to the door 3 of the washing machine 1 and if the unbalance 10 in the drum 4 is not diametrically opposite to the door 5, this door 5 is not found opposite. opposite door 3 of the washing machine 1.
  • a angular offset between the gate 5 and the door 3 can hinder or even prevent access to the interior of the drum 4 for removal of the washed laundry.
  • the present invention avoids these drawbacks.
  • a method of stopping a drum of a washing machine putting the door of the drum in front of the washing machine door comprises a reduction of an imbalance formed by laundry badly distributed in the drum. a zero residual imbalance or with an insensitive imbalance effect, by a redistribution of the laundry in the drum, and a stop of the drum, by an end to a drive of the drum at a predetermined time ta counted from the moment identified d '' a passage of the drum door in front of the washing machine door.
  • the reduction in unbalance formed by laundry that is poorly distributed in the drum includes intensity measurements and position of unbalance formed by linen badly distributed in the drum, - a comparison of the data of these measurements with selected reference values or thresholds of intensity and unbalance position, - an identification of the parameters of redistribution of linen in the drum, experimentally predetermined and relating to these reference values or selected thresholds of intensity and unbalance position, and which ensure a reduction in the unbalance corresponding to these thresholds, in a zero residual unbalance or with an insensitive imbalance effect, - and a redistribution of the laundry in the drum by rotating the drum according to the parameters identified.
  • a redistribution of the laundry in the drum which ensures a reduction of a given imbalance formed by bad laundry distributed in zero residual unbalance or with an unbalanced imbalance effect includes a rotation of the drum according to two parameters of redistribution of the linen, namely a constant experimentally predetermined acceleration of rotation of the drum and an experimentally predetermined duration of this rotation.
  • a measurement of the intensity of an imbalance formed in the drum by poorly distributed laundry consists of a measurement of a speed difference ⁇ between a maximum speed ⁇ max or a minimum speed ⁇ min of rotation of the drum unbalanced by the unbalance and a normal speed ⁇ nor of the same laundry drum without unbalance. It is noted that the greater the imbalance formed by poorly distributed laundry, the greater this speed difference ⁇ of the drum, this speed difference thus faithfully represents the intensity of this imbalance.
  • a measurement of the position of an unbalance formed in the drum by poorly distributed laundry consists of a measurement of time difference ⁇ t between the instant t when the speed of rotation of the drum unbalanced by the unbalance passes by a maximum value max or a minimum value ⁇ min, and the moment to when a median transverse plane Pp of the door of the drum passes on or merges with a fixed vertical reference plane Pr containing the axis of rotation of the drum.
  • the speed of rotation of the drum unbalanced by the unbalance passes by a minimum as soon as this unbalance reaches the highest point H of the path of the drum, and by a maximum as soon as this unbalance reaches the lowest point B of the drum path.
  • These two high points H and low B of the drum path are located in a fixed vertical plane passing through the axis of rotation of the drum. Now there is a single fixed vertical plane passing through the axis of rotation of the drum, thus the fixed vertical plane containing the two high points H and low B of the drum is also or confused with the fixed vertical reference plane Pr containing the axis of rotation of the drum.
  • unbalance intensity values in the form of speed deviations ⁇ and unbalance position values in the form of time differences ⁇ t are first chosen as reference values or thresholds and parameters for redistribution of the laundry in the drum by rotation of this drum at a constant acceleration are then determined experimentally relative to these reference values or thresholds .
  • To each of the pairs of these chosen reference values of intensity and unbalance position corresponds a pair of parameters for redistribution of the laundry in the drum in the form of a value of constant acceleration of rotation of the drum and of a duration of this rotation following this constant acceleration.
  • the method of stopping a drum of a washing machine putting the drum door opposite the washing machine door comprises, prior to the measurements of intensity and position of an unbalance formed by linen badly distributed in the drum, an accentuated release of the linen by rotation of the linen drum at a predetermined speed alternately in both directions and for a predetermined duration.
  • the position sensor 12 delivers to the microprocessor or microcontroller programmer 20 an electrical signal at each rotation of the drum 4 and at the moment when the gate 5 passes through the high point H of its path and is in alignment with the door 3 of the washing machine in other words at the moment when the movable part 14 of the sensor 12 passes in front of the fixed part 16 of this sensor.
  • the tachometer sensor 19 delivers to the microprocessor programmer 20 an electrical signal proportional to the speed of the drive motor 8.
  • the microprocessor or microcontroller of the programmer 20 stores in its memories both tables of experimentally predetermined parameters for redistribution of the laundry in the drum in the form of values of constant acceleration of rotation of the drum and durations of this rotation and classified according to different values of 'intensity of unbalance in the form of speed differences ⁇ , chosen as thresholds and different unbalance position values in the form of time differences ⁇ t, chosen as thresholds, only from the experimentally predetermined time ta for triggering the end of a drive of the drum, counted from the moment identified by the sensor 12 of a passage of the door of the drum in front of the door of the washing machine.
  • the position sensor 12 and the tachometer sensor 20 can be replaced by any other system giving the same results.
  • a system comprising spaced apart marks fixed on the periphery of the pulley 7 for driving the drum 4, and an associated optical sensor delivering electrical signals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP90403520A 1989-12-15 1990-12-11 Verfahren zur Erzielung des Trommelstillstandes einer Waschmaschine mit der Verschlussklappe der Trommel flüchtend unter dem Deckel der Waschmaschine und Waschmaschine zum Durchführen dieses Verfahrens Expired - Lifetime EP0433157B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916612A FR2656010B1 (fr) 1989-12-15 1989-12-15 Procede d'arret d'un tambour d'un lave-linge mettant le portillon du tambour en vis-a-vis de la porte du lave-linge et lave-linge mettant en óoeuvre un tel procede.
FR8916612 1989-12-15

Publications (2)

Publication Number Publication Date
EP0433157A1 true EP0433157A1 (de) 1991-06-19
EP0433157B1 EP0433157B1 (de) 1995-06-28

Family

ID=9388551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403520A Expired - Lifetime EP0433157B1 (de) 1989-12-15 1990-12-11 Verfahren zur Erzielung des Trommelstillstandes einer Waschmaschine mit der Verschlussklappe der Trommel flüchtend unter dem Deckel der Waschmaschine und Waschmaschine zum Durchführen dieses Verfahrens

Country Status (4)

Country Link
EP (1) EP0433157B1 (de)
DE (1) DE69020514T2 (de)
ES (1) ES2073552T3 (de)
FR (1) FR2656010B1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736625A1 (de) * 1995-04-06 1996-10-09 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Vorrichtungen zum Vermeiden von Unwucht in einer Wäschewaschmaschine in Topladerbauweise
EP0754797A1 (de) * 1995-07-21 1997-01-22 Esswein S.A. Verfahren und Vorrichtung zum Positionieren der Haltestellung der Trommel einer Topladerwaschmaschine
EP1111117A1 (de) * 1999-12-23 2001-06-27 Diehl AKO Stiftung & Co. KG Verfahren zum Positionieren einer Waschtrommel einer Waschmaschine in einer Zielposition
EP2374924A3 (de) * 2010-04-06 2012-08-08 Diehl AKO Stiftung & Co. KG Verfahren zum Betrieb eines Wäschebehandlungsgerätes
US9863080B2 (en) 2015-11-19 2018-01-09 Whirlpool Corporation Laundry treating appliance and methods of operation
US9873968B2 (en) 2015-11-19 2018-01-23 Whirlpool Corporation Laundry treating appliance and methods of operation
US9885135B2 (en) 2015-11-19 2018-02-06 Whirlpool Corporation Laundry treating appliance and methods of operation
US9890490B2 (en) 2015-11-19 2018-02-13 Whirlpool Corporation Laundry treating appliance and methods of operation
US9988751B2 (en) 2015-07-29 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of reducing tub contact therein
US9988753B2 (en) 2015-11-19 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of operation
US10041202B2 (en) 2015-11-19 2018-08-07 Whirlpool Corporation Laundry treating appliance and methods of operation
US10273621B2 (en) 2015-10-01 2019-04-30 Whirlpool Corporation Laundry treating appliance and methods of operation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110528227B (zh) * 2018-05-25 2021-08-20 无锡小天鹅电器有限公司 顶开式洗衣机的控制方法、系统及洗衣机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611758A1 (fr) * 1987-03-06 1988-09-09 Licentia Gmbh Procede de positionnement du tambour de lavage d'un lave-linge a tambour a chargement sur le dessus
FR2630137A1 (fr) * 1988-04-14 1989-10-20 Licentia Gmbh Procede de mesure de la repartition du linge, notamment dans des machines a laver et des essoreuses
DE3822924C1 (de) * 1988-07-07 1989-11-23 Miele & Cie Gmbh & Co, 4830 Guetersloh, De

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611758A1 (fr) * 1987-03-06 1988-09-09 Licentia Gmbh Procede de positionnement du tambour de lavage d'un lave-linge a tambour a chargement sur le dessus
FR2630137A1 (fr) * 1988-04-14 1989-10-20 Licentia Gmbh Procede de mesure de la repartition du linge, notamment dans des machines a laver et des essoreuses
DE3822924C1 (de) * 1988-07-07 1989-11-23 Miele & Cie Gmbh & Co, 4830 Guetersloh, De

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0736625A1 (de) * 1995-04-06 1996-10-09 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Vorrichtungen zum Vermeiden von Unwucht in einer Wäschewaschmaschine in Topladerbauweise
EP0754797A1 (de) * 1995-07-21 1997-01-22 Esswein S.A. Verfahren und Vorrichtung zum Positionieren der Haltestellung der Trommel einer Topladerwaschmaschine
FR2736943A1 (fr) * 1995-07-21 1997-01-24 Esswein Sa Procede de positionnement a l'arret d'une piece rotative mue par un moteur universel, en particulier du tambour d'une machine a laver a chargement par le dessus, et dispositif de mise en oeuvre
EP1111117A1 (de) * 1999-12-23 2001-06-27 Diehl AKO Stiftung & Co. KG Verfahren zum Positionieren einer Waschtrommel einer Waschmaschine in einer Zielposition
EP2374924A3 (de) * 2010-04-06 2012-08-08 Diehl AKO Stiftung & Co. KG Verfahren zum Betrieb eines Wäschebehandlungsgerätes
US9988751B2 (en) 2015-07-29 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of reducing tub contact therein
US10273621B2 (en) 2015-10-01 2019-04-30 Whirlpool Corporation Laundry treating appliance and methods of operation
US11739466B2 (en) 2015-10-01 2023-08-29 Whirlpool Corporation Laundry treating appliance and methods of operation
US11486074B2 (en) 2015-10-01 2022-11-01 Whirlpool Corporation Laundry treating appliance and methods of operation
US10669663B2 (en) 2015-10-01 2020-06-02 Whirlpool Corporation Laundry treating appliance and methods of operation
US9890490B2 (en) 2015-11-19 2018-02-13 Whirlpool Corporation Laundry treating appliance and methods of operation
US10041202B2 (en) 2015-11-19 2018-08-07 Whirlpool Corporation Laundry treating appliance and methods of operation
US10087565B2 (en) 2015-11-19 2018-10-02 Whirlpool Corporation Laundry treating appliance and methods of operation
US9988753B2 (en) 2015-11-19 2018-06-05 Whirlpool Corporation Laundry treating appliance and methods of operation
US10301762B2 (en) 2015-11-19 2019-05-28 Whirlpool Corporation Laundry treating appliance and methods of operation
US9885135B2 (en) 2015-11-19 2018-02-06 Whirlpool Corporation Laundry treating appliance and methods of operation
US9873968B2 (en) 2015-11-19 2018-01-23 Whirlpool Corporation Laundry treating appliance and methods of operation
US9863080B2 (en) 2015-11-19 2018-01-09 Whirlpool Corporation Laundry treating appliance and methods of operation

Also Published As

Publication number Publication date
DE69020514D1 (de) 1995-08-03
DE69020514T2 (de) 1995-11-30
EP0433157B1 (de) 1995-06-28
FR2656010A1 (fr) 1991-06-21
ES2073552T3 (es) 1995-08-16
FR2656010B1 (fr) 1992-02-28

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