EP0732437B1 - Verfahren zum Auswuchten in einer Wäschewasch- und/oder -trocknermaschine und Maschine zum Durchführen dieses Verfahrens - Google Patents

Verfahren zum Auswuchten in einer Wäschewasch- und/oder -trocknermaschine und Maschine zum Durchführen dieses Verfahrens Download PDF

Info

Publication number
EP0732437B1
EP0732437B1 EP96104015A EP96104015A EP0732437B1 EP 0732437 B1 EP0732437 B1 EP 0732437B1 EP 96104015 A EP96104015 A EP 96104015A EP 96104015 A EP96104015 A EP 96104015A EP 0732437 B1 EP0732437 B1 EP 0732437B1
Authority
EP
European Patent Office
Prior art keywords
drum
phase
speed
laundry
load
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.)
Expired - Lifetime
Application number
EP96104015A
Other languages
English (en)
French (fr)
Other versions
EP0732437B2 (de
EP0732437A1 (de
Inventor
Costantino Mariotti
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11413345&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0732437(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0732437A1 publication Critical patent/EP0732437A1/de
Application granted granted Critical
Publication of EP0732437B1 publication Critical patent/EP0732437B1/de
Publication of EP0732437B2 publication Critical patent/EP0732437B2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • 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
    • D06F2103/24—Spin speed; Drum movements
    • 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
    • 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
    • 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 
    • D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry

Definitions

  • the present invention relates to a method for balancing the load in a laundry washing and/or drying machine.
  • a critical element concerning said spinning phases is the risk of having an unbalanced laundry load with the clothes arranged unevenly inside the machine drum, i.e. either concentrated in some areas and not available in other areas, so that during high speed rotation of the drum this unbalanced load condition may in fact cause important machine oscillations or even the risk of a mechanical failure.
  • washing machines are provided with special control systems and methods to check whether the laundry load is evenly distributed or balanced inside the drum, before execution of a spinning phase.
  • the control system In case of a balanced load, the control system enables execution of the spinning phase, whereas in case of an unbalanced load the control system will remove the unbalance condition and provide for a new distribution phase or at least bring its amount back to acceptable limits for the machine structure.
  • the known systems are characterized by the fact that upon detection of a load unbalance, the machine drum stops to start a more or less long and complex new distribution phase for balancing the load.
  • a balance phase is carried out letting first the drum rotate in one direction at a given speed (eg. 45 rpm clockwise) and stop for a given time, then repeat drum rotation inversely (eg. 45 rpm anticlockwise) and stop rotation again, and so on, for a certain number of times.
  • the method of operation according to the known technology involves rather long operational times dictated by the need of executing a plurality of stops and rotation intervals of the machine drum. Such a problem is further sharpened considering that for some particular types of clothes (as for instance sponge textiles) a load balance is difficult to reach, so that repeated balance attempts are required.
  • Fig. 1 a simplified diagram shows the flow of the drum rotation speeds of a laundry washer operating according to the known state of the art in its phases of laundry load distribution, unbalance control and removal.
  • the axis of abscissas represents time, whereas the axis of ordinates represents the speed reached by the laundry washer drum during the various phases.
  • a first phase indicated by A is foreseen before spin start, which brings the motor and then the drum of the laundry washer to such a speed allowing load satellization, i.e. such as to cause a substantial adhesion of the clothes to the drum walls.
  • Said speed, called distribution speed is typically about 90 revs per minute.
  • Such a balance measure may be carried out for example during phase B by measuring the frequency of the signal from a speedometer dynamo detecting the motor speed.
  • the motor control system will maintain a 90 rpm distribution speed for a pre-set time, which is longer than the one of phase B, after which the drum speed increase will be enabled till the spin speed is reached, as it is shown by the example in Fig. 1 through the hatched line CE.
  • phase B If during phase B an unbalance is detected, the motor control system will cut off power to the motor causing the drum to stop. This action is graphically shown by phase C.
  • a first interval of about 10 secs occurs as indicated by D.
  • the control system enables the motor and brings it to a speed of about 45 rpm in the phase indicated by E.
  • phase F a new stop of the motor and of drum rotation
  • phase H a new interval
  • phase H the control system starts the motor again (phase I) to rotate inversely to the direction of phases E-F, till the 45-rpm speed is reached and maintained for about 10 secs (phase L).
  • phase M a new stop
  • phase N a new interval
  • Said start, stop and drum motion reverse phases have the purpose of possibly obtaining a distribution of the clothes inside the drum different from the initial one, so as to remove a load unbalance. This occurs practically because said motion stops and reverses cause the clothes to fall down on the lower side of the drum as well as their "mixing", right with the purpose of eventually removing the initial unbalance condition.
  • the motor control system carries out a new distribution phase by repeating both phases A and B. If during the new phase B a new unbalance is detected, the control system will then repeat phases C-N.
  • FIG. 2 a simplified block diagram shows part of the control circuit of the machine implementing the method according to the present invention.
  • MO indicates the laundry washer motor, which generates rotation of a machine drum in a manner known for itself with the aid of belts and pulleys.
  • SC indicates in its whole an electronic digital module or system for the control of motor MO.
  • MP indicates an electronic microcontroller with an internal clock, indicated by CLOCK, with associated permanent memory means indicated by ROM.
  • said microcontroller MP is actually the one available in the digital module SC to control the function of motor MO.
  • Memory ROM has some management programs of motor MO codified according to the various phases provided by the operational cycles of the machine, which can be selected by the user through proper control means (eg. an electro-mechanical timer and/or selection keys).
  • Module SC specifically through microcontroller MP and relevant memory ROM, manages the motor MO as a function of the signals received from said control organs and other machine components, such as a pressure switch, some push-buttons, a speedometer dynamo, etc.
  • the device T indicates a device suitable to generate a representative signal of the rotation speed reached by the drum and consequently by the motor MO during machine operation.
  • the device T consists of a speedometer dynamo, but it is obvious that other similar devices can be used for the purpose of measuring rotation speed of both the drum and motor (eg. sensor of magnetic reed type).
  • the permanent memory ROM of the microcontroller MP has a proper program available, which will be described later with reference to Fig. 4, to perform the method according to the invention.
  • Fig. 3 a simplified diagram shows the flow of drum rotation speeds of a laundry washer implementing the method according to the present invention, during the phases of laundry load distribution, its unbalance and its removal. Also in Fig. 3 time is represented on the axis of the abscissas, whereas the axis of the ordinates represents the speed reached by the washer drum during the various operational phases. According to the method provided by the present invention, a distribution or satellization phase for the laundry load is provided before starting a spinning phase.
  • the machine motor is controlled to bring the drum to a satellization speed of about 90 rpm. Upon reaching said speed, this is maintained for a certain time in the phase indicated by B'.
  • the machine control system measures the load balance degree.
  • the motor control system will maintain distribution speed (90 rpm) for a pre-set time and subsequently enable an increase of the drum speed to reach the spin speed as it is shown by way of example in Fig. 3 by the line CE'.
  • the method according to the present invention provides for a decrease of the drum rotation speed from 90 rpm to a speed value allowing the clothes to disatellizite, i.e. to come off the drum walls and fall down to its centre so as not to slow down its rotation.
  • This speed decrease phase is indicated in Fig. 3 by reference letter R.
  • the speed value for disatellization of the load without decreasing the drum speed is substantially comprised between 45 and 55 rpm.
  • the drum speed decrease is simply obtained in the practice by stopping power feed to the motor MO of the laundry washer for a few seconds, till the speedometer dynamo T detects that the motor has reached the pre-set speed between 45 - 55 rpm, as stated above.
  • control system SC of motor MO feeds the motor again determining a speed increase to 90 rpm during the phase indicated by A" in Fig. 3. This speed will be subsequently maintained for a pre-set time in the phase indicated by B".
  • phase B the phases of speed decrease (R), increase (phase A") and distribution (phase B") can be obtained in a total time of even less than 10 seconds.
  • phase R causes the clothes to come off the drum walls to the drum centre.
  • a fast speed increase to 90 rpm does not let the clothes collect to the drum lower side; in other words, therefore, before the clothes collect on the drum bottom the spinning force generated by the new speed increase to 90 rpm determines a new satellization of the load, so that drum rotation is not held back.
  • phase B the control system performs a new check of the load balance degree. If the load is now balanced, the control system will maintain a 90 rpm speed till the signal from the programmer or timer of the machine (not shown in the figure) indicates that the high speed spin phase has started, whereas in case of a still unbalanced load the control system SC of the machine will perform a new speed decrease phase down to 45 rpm (phase R), a new increase phase up to 90 rpm (phase A”) and a new distribution phase (phase B”) verifying the balance degree. Said operational cycle will be repeated as long as the load is not balanced so as to obtain a stable spin.
  • the method according to the present invention allows the performance of the operational cycle in a drastically shorter time compared to the known state of the art.
  • FIG. 4 shows by way of example a possible block diagram of a part of the logical circuit of the motor of a laundry washing and/or drying machine implementing the method according to the present invention.
  • reference number 1 indicates the start block of the program, which releases control to block 2.
  • Said block 2 determines the start of a motor speed increase slope to 90 rpm (phase A' of Fig. 2), and then releases control to block 3.
  • Such a block 3 is a test block, testing load balance conditions during the distribution phase (phase B' of Fig. 3).
  • Said block controls motor feed, so as to decrease the drum rotation speed from 90 rpm (phase R in fig. 3). Then the control goes on to block 10.
  • Block 10 is a test block, verifying when the drum rotation speed reaches the pre-set disatellization value (comprised between 45 and 55 rpm), i.e. a speed allowing the clothes to come off the drum walls, however without stopping drum rotation. Upon reaching said decreased speed (output SI), the control goes back to block 2, which performs a new speed increase slope up to 90 rpm (block 2 or phase A" in Fig. 3) and a new test of the load balance (block 3 or phase B" in Fig. 3).
  • the method according to the present invention allows an extremely efficient balance of the clothes inside the drum of a laundry washer in drastically shorter times than according to the known technology described at the beginning of the present description.

Landscapes

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

Claims (10)

  1. Verfahren zum Ausgleichen einer durch Kleidungsstücke hervorgerufenen Unwucht in einer Wäschewaschmaschine und/oder Wäschetrocknungsmaschine, die aufweisen:
    einen Motor (MO), um eine Drehung der Trommel, welche die Wäsche aufnimmt, zu erzeugen, ein Steuersystem (SC) für diesen Motor (MO) und Mittel (T) zum Erfassen des Gleichgewichtszustandes der Beladung in der Trommel, wobei das Verfahren enthält:
    eine Anfangsdrehphase (B') der Trommel bei einer ersten Drehzahl, die ein weitgehendes Anhaften der Kleidungsstücke an den Trommelwänden bewirkt, und eine Erfassungsphase des Gleichgewichtszustandes während dieser Anfangsphase (B'), bei der eine oder mehrere Ausgleichsmaßnahmen (R,A",B") durch die Beladung selbst bereitgestellt werden, sollte eine unausgeglichene Beladung erfasst werden, wobei die Ausgleichsmaßnahmen (R,A",B") erzielt werden, während die Trommel in einer kontinuierlichen Drehung gehalten wird,
    dadurch gekennzeichnet, dass jede Ausgleichsmaßnahme (R,A",B") enthält:
    eine erste Phase (R) der Reduktion der Trommeldrehzahl von einer ersten Drehzahl (90 U/min) auf eine zweite Drehzahl (45-55 U/min), die geeignet ist, die Wäsche zu veranlassen, die Trommelwände zu verlassen und in Richtung der Mitte der Trommel selbst zu fallen;
    eine zweite Phase (A"), bei der die Trommeldrehzahl von der zweiten Drehzahl (45-55 U/min) zu der ersten Drehzahl (90 U/min) zurückkehrt, bevor sich die Wäsche an dem Trommelboden sammelt;
    eine dritte Phase (B") zum Aufrechterhalten der ersten Drehzahl (90 U/min), wobei die erste, zweite und dritte Phase aufeinander folgend wiederholt werden, bis die Wäsche in der Trommel ausgeglichen ist.
  2. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, dass die zweite Phase (A") unmittelbar der ersten Phase (R) folgt, so dass die Wäsche, welche während der ersten Phase (R) die Trommelwände verlässt und in Richtung des Trommelmittelpunktes fällt, durch Zentrifugalkraft wieder gegen die Trommelwände gedrückt wird, bevor sie sich sammelt, so dass die Trommeldrehung nicht verlangsamt wird.
  3. Verfahren nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass während der dritten Phase (B") eine erneute Erfassung des Gleichgewichtszustandes der Beladung ausgeführt wird.
  4. Verfahren nach dem vorstehenden Anspruch,
    gekennzeichnet durch die Tatsache, dass, wenn eine neue Unwucht während der dritten Phase (B") erfasst wird, die zweite und die dritte Phase wiederholt werden.
  5. Verfahren nach dem vorstehenden Anspruch,
    dadurch gekennzeichnet, dass die erste, die zweite und die dritte Phase in dieser Folge wiederholt werden, bis die Unwucht in der Trommel ausgeglichen ist, um anschließend eine Hochgeschwindigkeits-Schleuderphase (CE') der Wäsche auszuführen.
  6. Verfahren nach zumindest einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass die erste Drehzahl im Wesentlichen bei ca. 90 U/min und/oder die zweite Drehzahl im Wesentlichen zwischen 45 und 55 U/min liegt.
  7. Verfahren nach zumindest einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass die erste, die zweite und die dritte Phase in einer Gesamtzeit von ca. 10 Sekunden ausgeführt werden.
  8. Verfahren nach zumindest einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass das Erfassen des Gleichgewichtszustandes der Beladung durch Analysieren der Daten, die von einem Tachodynamo (T) zugeführt werden, erfolgt.
  9. Wäschewaschmaschine und/oder Wäschetrocknungsmaschine, enthaltend:
    eine Trommel, die die Wäsche aufnimmt, sowie einen Motor (MO) zum Erzeugen der Drehung der Trommel, ein Steuersystem (SC) zum Steuern des Motors (MO), Mittel (T) zum Erfassen des Gleichgewichtszustandes der Beladung innerhalb der Trommel, wobei das Steuersystem (SC) eine Anfangsdrehphase (B') der Trommel bei einer ersten Drehzahl, welche ermöglicht, eine substantielle Anhaftung der Kleidungsstücke an den Trommelwänden zu erzeugen, sowie eine Erfassungsphase des Gleichgewichtszustandes während der Anfangsphase (B') steuert, wobei eine oder mehrere Ausgleichsmaßnahmen (R,A",B") der Beladung selbst bereit gestellt werden, sollte ein unausgeglichener Beladungszustand erfasst werden, wobei die Ausgleichsmaßnahmen (R,A",B') erhalten werden, während die Trommel in kontinuierlicher Drehung gehalten wird,
    dadurch gekennzeichnet, dass jede Ausgleichsmaßnahme (R,A",B"), die durch das Steuersystem (SC) gesteuert wird, enthält:
    eine erste Phase (R) der Verringerung der Trommeldrehzahl von der ersten Drehzahl (90 U/min) auf eine zweite Drehzahl (45-55 U/min), die geeignet ist, die Wäsche zu veranlassen, die Trommelwände zu verlassen und in Richtung der Mitte der Trommel selbst zu fallen;
    eine zweite Phase (A"), bei der die Trommeldrehzahl von der zweiten Drehzahl (45-55 U/min) zu der ersten Drehzahl (90 U/min) zurückkehrt, bevor sich die Wäsche an dem Trommelboden sammelt;
    eine dritte Phase (B") zum Aufrechterhalten der ersten Drehzahl (90 U/min), wobei die erste, die zweite und die dritte Phase aufeinander folgend wiederholt werden, bis die Wäsche in der Trommel gleichmäßig verteilt.
  10. Wäschewaschmaschine und/oder Wäschetrocknungsmaschine nach Anspruch 9,
    dadurch gekennzeichnet, dass der Motor (M) ein Betätigungsmotor (M) des Wechselstromtyps oder des Asynchrontyps ist, wobei insbesondere das Steuersystem (SC) des Motors (M) digital mit einem elektronischen Mikrokontroller (MP) ist.
EP96104015A 1995-03-14 1996-03-14 Verfahren zum Auswuchten in einer Wäschewasch- und/oder -trocknermaschine und Maschine zum Durchführen dieses Verfahrens Expired - Lifetime EP0732437B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO950187 1995-03-14
IT95TO000187A IT1279162B1 (it) 1995-03-14 1995-03-14 Metodo per il bilanciamento del carico in una macchina per il lavaggio e/o l'asciugatura di biancheria, e macchina che implementa tale metodo

Publications (3)

Publication Number Publication Date
EP0732437A1 EP0732437A1 (de) 1996-09-18
EP0732437B1 true EP0732437B1 (de) 2002-07-03
EP0732437B2 EP0732437B2 (de) 2007-08-01

Family

ID=11413345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96104015A Expired - Lifetime EP0732437B2 (de) 1995-03-14 1996-03-14 Verfahren zum Auswuchten in einer Wäschewasch- und/oder -trocknermaschine und Maschine zum Durchführen dieses Verfahrens

Country Status (4)

Country Link
EP (1) EP0732437B2 (de)
DE (1) DE69622067T3 (de)
ES (1) ES2179132T5 (de)
IT (1) IT1279162B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8984693B2 (en) 2010-12-10 2015-03-24 Whirlpool Corporation Method and apparatus for redistributing an imbalance in a laundry treating appliance
US9279206B2 (en) 2011-03-30 2016-03-08 Whirlpool Corporation Method and apparatus for forming a counterbalance to an imbalance in a laundry treating appliance

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10216391A (ja) * 1997-02-12 1998-08-18 Toshiba Corp ドラム式洗濯機
GB0006506D0 (en) * 2000-03-18 2000-05-10 Notetry Ltd Laundry appliance
BRPI0605015A (pt) * 2006-11-30 2008-07-15 Electrolux Do Brasil Sa método de lavagem de roupas apresentando baixa vibração do cesto de roupas da máquina de lavar roupas durante a etapa de centrifugação, e, máquina de lavar roupas praticamente isenta de vibração durante a etapa de centrifugação
JP5263570B2 (ja) 2007-10-31 2013-08-14 日立工機株式会社 遠心機
ATE547552T1 (de) * 2008-07-10 2012-03-15 Electrolux Home Prod Corp Waschzyklusprofil in der wäschereiaufteilung und wäschereifreigabe
AU2009327647B2 (en) 2008-12-17 2012-07-19 Fisher & Paykel Appliances Limited A laundry machine
DE102008055091A1 (de) * 2008-12-22 2010-06-24 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Steuern eines Wäscheverteilbetriebs eines Haushaltsgeräts zur Pflege von Wäschestücken
JP2012120687A (ja) * 2010-12-08 2012-06-28 Samsung Yokohama Research Institute Co Ltd ボールバランサを有する回転装置
DE102011087644B3 (de) 2011-12-02 2012-12-13 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb einer Waschmaschine mit einer verbesserten Schleuderphase
DE102011089107A1 (de) 2011-12-20 2013-06-20 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betreiben eines Haushaltsgerätes zur Behandlung darin eingebrachter Gegenstände
SI2527511T1 (sl) 2012-03-21 2014-05-30 Primus Ce S.R.O. Postopek upravljanja centrifugiranja v pralnem stroju
WO2015025476A1 (ja) * 2013-08-19 2015-02-26 パナソニックＩｐマネジメント株式会社 ドラム式洗濯機
IT202200014575A1 (it) 2022-07-12 2024-01-12 Candy Spa Metodo per il bilanciamento del carico di biancheria in una macchina di trattamento di biancheria, nonché macchina di trattamento di biancheria
IT202200016326A1 (it) 2022-08-01 2024-02-01 Candy Spa Metodo per il bilanciamento del carico in una macchina lavabiancheria o asciugabiancheria, nonché macchina lavabiancheria o asciugabiancheria

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2917175A (en) † 1959-01-22 1959-12-15 Gen Electric Unbalance sensing arrangement for machines having a centrifugal liquid extraction step
DE2153858A1 (de) * 1971-10-28 1973-05-03 Siemens Ag Arbeitsverfahren zum gleichmaessigen verteilen von waesche ueber den innenumfang einer, um eine waagerechte achse umlaufenden wasch- und schleudertrommel einer automatisch arbeitenden waschmaschine sowie fluidisch arbeitendes programmsteuergeraet zur durchfuehrung des verfahrens
IT1038355B (it) † 1975-05-22 1979-11-20 Ire Spa Procedimento e macchina automatica per lavare e centrifugare la biancheria
DE3911124A1 (de) * 1989-04-06 1990-10-11 Licentia Gmbh Trommeldrehzahl-steuerungsverfahren fuer haushaltwaschmaschinen und vorrichtung zur durchfuehrung des verfahrens
DE4336349A1 (de) † 1993-10-25 1995-04-27 Bosch Siemens Hausgeraete Verfahren zum Bestimmen der Masse von nasser Wäsche in einer Wäschetrommel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8984693B2 (en) 2010-12-10 2015-03-24 Whirlpool Corporation Method and apparatus for redistributing an imbalance in a laundry treating appliance
US9279206B2 (en) 2011-03-30 2016-03-08 Whirlpool Corporation Method and apparatus for forming a counterbalance to an imbalance in a laundry treating appliance

Also Published As

Publication number Publication date
DE69622067T2 (de) 2003-02-27
ES2179132T3 (es) 2003-01-16
ITTO950187A0 (it) 1995-03-14
ITTO950187A1 (it) 1996-09-14
EP0732437B2 (de) 2007-08-01
ES2179132T5 (es) 2008-02-16
EP0732437A1 (de) 1996-09-18
DE69622067D1 (de) 2002-08-08
IT1279162B1 (it) 1997-12-04
DE69622067T3 (de) 2008-03-06

Similar Documents

Publication Publication Date Title
EP0732437B1 (de) Verfahren zum Auswuchten in einer Wäschewasch- und/oder -trocknermaschine und Maschine zum Durchführen dieses Verfahrens
US6393918B2 (en) Method and apparatus for detecting washing machine tub imbalance
CA1306367C (en) Water extraction method and control for automatic washer
US4991247A (en) Method of balancing a container which rotates about an essentially horizontal axis
US5325677A (en) Electronic washer control including automatic balance, spin and brake operations
JP3300591B2 (ja) 電子的電動機制御用の装置および該制御の操作方法
US4843671A (en) Dehydrating method for a washing machine
RU94038773A (ru) Способ определения массы влажного белья в барабане стиральной машины
KR20000007275A (ko) 드럼세탁기의 언밸런스 검출방법
JPH10216391A (ja) ドラム式洗濯機
WO2005106097A1 (en) Drum type washing machine and controlling method thereof
JPH05200186A (ja) 洗濯物の重量を測定する方法
KR100348768B1 (ko) 자동제어세탁기
JP3536566B2 (ja) 洗濯機
KR100215780B1 (ko) 드럼 세탁기의 발란스 제어방법
KR20020076135A (ko) 세탁기의 탈수 제어방법
JP2723884B1 (ja) 洗濯機の脱水制御方法
EP0687760B1 (de) Verfahren zum Prüfen des Wäschegewichts in einer Wasch- und/oder -Trockner-Maschine und Maschine die ein solches Verfahren verwendet
JP3612904B2 (ja) 全自動洗濯機
JP2009095528A (ja) ドラム式洗濯機
GB2295160A (en) Washing machine motor control
GB2212013A (en) Electric motor controller
EP0224145B1 (de) Automatische Waschmaschine mit drehender Trommel
KR100474898B1 (ko) 세탁기의 탈수 제어방법
KR970006594B1 (ko) 세탁기의 발란스 탈수제어방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB

17P Request for examination filed

Effective date: 19970318

17Q First examination report despatched

Effective date: 19981211

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB

REF Corresponds to:

Ref document number: 69622067

Country of ref document: DE

Date of ref document: 20020808

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2179132

Country of ref document: ES

Kind code of ref document: T3

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

26 Opposition filed

Opponent name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

Effective date: 20030403

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLCK Communication despatched that opposition was rejected

Free format text: ORIGINAL CODE: EPIDOSNREJ1

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAA Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOS REFN

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: INDESIT COMPANY S.P.A.

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: BSH BOSCH UND SIEMENS HAUSGERAETE GMBH

Effective date: 20030403

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20070801

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE ES FR GB

ET3 Fr: translation filed ** decision concerning opposition
REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Date of ref document: 20071018

Kind code of ref document: T5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20110401

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20110323

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120327

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120411

Year of fee payment: 17

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120402

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20130710

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120315

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130314

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69622067

Country of ref document: DE

Effective date: 20131001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131001

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130314