EP0937810B1 - Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen - Google Patents

Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen Download PDF

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Publication number
EP0937810B1
EP0937810B1 EP98830096A EP98830096A EP0937810B1 EP 0937810 B1 EP0937810 B1 EP 0937810B1 EP 98830096 A EP98830096 A EP 98830096A EP 98830096 A EP98830096 A EP 98830096A EP 0937810 B1 EP0937810 B1 EP 0937810B1
Authority
EP
European Patent Office
Prior art keywords
laundry
movement
rotation
drying
drum
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
EP98830096A
Other languages
English (en)
French (fr)
Other versions
EP0937810A1 (de
Inventor
Antonio Merloni
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.)
Antonio Merloni SpA
Original Assignee
Antonio Merloni 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
Priority to EP98830096A priority Critical patent/EP0937810B1/de
Priority to AT98830096T priority patent/ATE241719T1/de
Priority to ES98830096T priority patent/ES2200301T3/es
Priority to DE69815056T priority patent/DE69815056T2/de
Priority to PT98830096T priority patent/PT937810E/pt
Application filed by Antonio Merloni SpA filed Critical Antonio Merloni SpA
Priority to DK98830096T priority patent/DK0937810T3/da
Publication of EP0937810A1 publication Critical patent/EP0937810A1/de
Priority to HK00100930.3A priority patent/HK1022001B/en
Application granted granted Critical
Publication of EP0937810B1 publication Critical patent/EP0937810B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F33/00—Control of operations performed in washing machines or washer-dryers 
    • D06F33/50—Control of washer-dryers characterised by the purpose or target of the control
    • D06F33/52—Control of the operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
    • 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
    • D06F2103/02—Characteristics of laundry or load
    • D06F2103/06—Type or material
    • 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
    • D06F2103/28—Air properties
    • D06F2103/34—Humidity
    • 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
    • D06F2103/44—Current or voltage
    • 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
    • D06F2103/68—Operation mode; Program phase
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • 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
    • D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
    • D06F2105/48—Drum speed
    • 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
    • D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air 
    • 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/32—Control of operations performed in domestic laundry dryers 
    • D06F58/34—Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity

Definitions

  • the invention relates to a process for drying laundry, or the like, in washer-driers and driers, or the like, according to the preamble of claim 1.
  • the dimensions of the drum cannot be increased at will and must be kept within certain limits if the machines are not to become too large, which would be a serious inconvenience, especially for machines intended for domestic use.
  • Document EP-A-761 discloses a process according to the preamble of claim 1.
  • the drum is driven at a rotational speed which is higher than the speed normally used.
  • the drying cicle comprises several phases during each of which phase the rotational speed of the drum is different relatively to the rotational speed of the following phase.
  • the rotational speeds of the different phases may be higher, similar or lower than the drying rotational speed.
  • Document CH-A-659841 discloses also a method for drying laundry.
  • the method taught therein aims to reduce the mechanical stress on the laundry during drying and provides a variation of the revolution of the drum during the drying process. This variation consist in a reduction of the rotational speed from a first higher speed to a secondo lower speed.
  • the rotational speed may be reduced step by step.
  • the object of the invention is to provide a drying process that can be used in present-day driers and in particular in present-day washer-driers, that will increase the efficiency of the drying phase and therefore making it shorter, without requiring structural modifications to the actual machines.
  • the invention achieves the above objects by means of a process for drying laundry, or the like, in washer-driers or driers, or the like, of the type according to the preamble of claim 1 and which further comprises the combination of steps according to the characterising part of claim 1.
  • the speed of movement of the laundry is selected such that when the movement stops for the pause, the laundry is tumbled, whereas during the movement the inertial forces do not cause excessive compression and compacting of the said laundry.
  • the speed of movement of the laundry during the drying phase is faster than its speed during washing by approximately a factor of up to 3.
  • the speeds of movement of the laundry may be variable to suit the types of fabric being handled.
  • the invention relates in particular and by way of example to an embodiment of the drying process used in conjunction with driers and/or washer-driers having a cylindrical drum with a horizontal axis of rotation, such as are conventionally used at present, but may be extended with no particular ingenuity to machines in which the drum rotates on a vertical axis and to any other type of washing machine and/or drier with laundry agitating cycles.
  • the alternating rotation referring to the two opposite directions of rotation, can be achieved by any method.
  • one possibility is an oscillating motion of the drum in both directions of rotation without the drum ever actually completing a full revolution in either direction.
  • the drum may be rotated one or more times without interruption in one direction and one or more times in the opposite direction directly following on.
  • drum movement programs described above in each phase of movement and the said drum movement programs can also vary from one phase of movement to the next in the course of the drying phase.
  • the speeds of rotation In combination with the alternating rotation, that is referring to the directions of rotation of the drum, it is advantageous for the speeds of rotation to be between approximately 80 and 200, preferably between approximately 100 and 150 revolutions per minute of the said drum.
  • the preset speed of rotation is sufficiently high to press the laundry gently against the sides of the drum without compressing it into too compact a mass and without causing it to continue to cling to the sides of the drum even when the drum has stopped.
  • the laundry at the top of the drum can therefore tumble down. This ensures that all the items or all parts of the items of the laundry come into contact with the stream of hot air.
  • the drying phase in accordance with the invention is repeated throughout the duration of the drying process. In this way all the laundry contained in the drum is subjected to the action of the hot drying air, in a uniform manner, both as regards laundry situated close to the hot air inlet and that close to the hot air outlet, as well as that on the bottom of the drum.
  • the process according to the invention is very simple and, as is clear, requires no structural modifications to machines currently in use. Moreover the process achieves greater drying efficiency with total drying times 20 to 40% shorter than can be achieved by currently known methods.

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)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Drying Of Solid Materials (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Detergent Compositions (AREA)

Claims (9)

  1. Prozess zum Trocknen von Wäsche o.ä. in Waschtrocknern oder Trocknern o.ä., in denen die Wäsche, der zuerst durch Schleudern eine bestimmte Menge Wasser entnommen wurde, der Wirkung eines Stroms heißer Luft ausgesetzt und zugleich geschüttelt/bewegt wird, um ein Anheben/Herunterfallen der Wäsche und ein verstärktes Aussetzen an den Strom heißer Luft zu bewirken, der genannte Prozess umfasst weiter mindestens zwei oder mehr Phasen der Bewegung der Wäsche o.ä., die mit Pausen abwechseln, wobei die Wäsche während der Bewegungsphasen einer Bewegung des Bewegens/Schüttelns ausgesetzt wird, die die genannte Wäsche zusammendrängt, um einen erheblichen freien Raum für die Passage der heißen Trocknungsluft durch die Trockenkammer zu lassen, wobei vorzugsweise ein Kanal für die Passage der Trocknungsluft durch die Wäsche entsteht, die gleichförmig um diesen Kanal verteilt ist, dadurch gekennzeichnet, dass die trocknende Wäsche zwei alternierenden Bewegungen in zwei verschiedene, vorzugsweise entgegengesetzte Richtungen ausgesetzt wird, jede Bewegungsphase mit einer vorgegebenen unterschiedlichen Bewegungsgeschwindigkeit der Wäsche ausgeführt wird, wobei die genannte Geschwindigkeit in dem Maße zunimmt, in dem die Wäsche allmählich trockener wird.
  2. Prozess gemäß Anspruch 1, dadurch gekennzeichnet, dass während der Bewegungsphasen die Geschwindigkeit der Bewegung der Wäsche so gewählt wird, dass die auf die Wäsche wirkenden Massenkräfte nicht eine zu starke Komprimierung und Verdichtung der genannten Wäsche bewirken, und die Wäsche während der Pause, wenn die Bewegung stoppt, herunterfällt.
  3. Prozess gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Trommel während des Waschens mit einer vorgegebenen Geschwindigkeit gedreht wird, wobei die Bewegungsgeschwindigkeit der Wäsche während der Bewegungsphasen des Trocknungsprozesses ungefähr um einen Faktor von 1,5 bis 3 schneller ist als die Geschwindigkeit während des Waschens.
  4. Prozess gemäß einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Geschwindigkeiten der Bewegung der Wäsche variabel sein können, um der behandelten Textilart angepasst zu werden.
  5. Prozess gemäß einem oder mehreren der vorstehenden Ansprüche, bei dem das Trocknen in Trocknern oder Waschtrocknern mit einer zylindrischen Trommel mit einer horizontalen und/oder vertikalen Drehachse erfolgt.
  6. Prozess gemäß Anspruch 5, dadurch gekennzeichnet, dass die alternierende Bewegung der Wäsche durch eine alternierende Drehung der Trommel sowohl im Uhrzeigersinn als auch gegen den Uhrzeigersinn erreicht wird.
  7. Prozess gemäß Anspruch 6, dadurch gekennzeichnet, dass die alternierende Drehung, die die zwei entgegengesetzten Drehrichtungen betrifft, die Form einer oszillierenden Bewegung der Trommel in beide Drehrichtungen mit Winkelweiten hat, die kleiner als eine vollständige Umdrehung in jede der zwei Richtungen sind.
  8. Prozess gemäß einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Trommel während jeder Bewegungsphase eine oder mehrere Drehungen in beide Drehrichtungen ausführt, wobei die Drehungen in jede Richtung ohne Unterbrechung ausgeführt werden oder entweder jede Drehung oder zumindest zwei Drehungen in eine Richtung mit einer oder mindestens zwei Umdrehungen in die entgegengesetzte Richtung abwechseln.
  9. Prozess gemäß einem oder mehreren der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Drehzahl der Trommel während der Phasen der Bewegung der Wäsche zwischen ungefähr 80 und ungefähr 200, vorzugsweise zwischen ungefähr 100 und ungefähr 150 Umdrehungen pro Minute beträgt.
EP98830096A 1998-02-24 1998-02-24 Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen Expired - Lifetime EP0937810B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT98830096T ATE241719T1 (de) 1998-02-24 1998-02-24 Verfahren zum trocknen von wäsche oder dergleichen in einem waschtrockner oder dergleichen
ES98830096T ES2200301T3 (es) 1998-02-24 1998-02-24 Procedimiento para el secado de colada, o similares, en lavadoras-secadoras, o similares.
DE69815056T DE69815056T2 (de) 1998-02-24 1998-02-24 Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen
PT98830096T PT937810E (pt) 1998-02-24 1998-02-24 Processo de secagem de roupa, ou equivalente, em "maquinas de lavar - secadoras", ou equivalentes
EP98830096A EP0937810B1 (de) 1998-02-24 1998-02-24 Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen
DK98830096T DK0937810T3 (da) 1998-02-24 1998-02-24 Fremgangsmåde til tørring af vasketøj eller lignende i vaske-/tørremaskiner eller lignende
HK00100930.3A HK1022001B (en) 2000-02-17 Process for drying laundry, or the like, in washer-driers, or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830096A EP0937810B1 (de) 1998-02-24 1998-02-24 Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen

Publications (2)

Publication Number Publication Date
EP0937810A1 EP0937810A1 (de) 1999-08-25
EP0937810B1 true EP0937810B1 (de) 2003-05-28

Family

ID=8236552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830096A Expired - Lifetime EP0937810B1 (de) 1998-02-24 1998-02-24 Verfahren zum Trocknen von Wäsche oder dergleichen in einem Waschtrockner oder dergleichen

Country Status (6)

Country Link
EP (1) EP0937810B1 (de)
AT (1) ATE241719T1 (de)
DE (1) DE69815056T2 (de)
DK (1) DK0937810T3 (de)
ES (1) ES2200301T3 (de)
PT (1) PT937810E (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1577433B2 (de) † 2004-02-17 2015-11-25 LG Electronics, Inc. Verfahren zur Steuerung einer Trommelwaschmaschine
FR2907806B1 (fr) * 2006-10-25 2008-12-05 Brandt Ind Sas Procede de sechage du linge d'une machine a secher le linge
EP2458076B1 (de) * 2010-11-29 2014-01-08 Electrolux Home Products Corporation N.V. Wäschetrockner mit Drehtrommel und Verfahren zur Steuerung eines Wäschetrockners mit Drehtrommel zum Trocknen von Feinwäsche
DE102016113723A1 (de) 2016-07-26 2018-02-01 Miele & Cie. Kg Verfahren zum Behandeln von Wäsche, Verfahren und Vorrichtung zum Betreiben einer Wäschebehandlungsmaschine und Wäschebehandlungsmaschine zum Behandeln von Wäsche

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH659841A5 (en) * 1982-07-26 1987-02-27 V Zug Ag Process for the drying of ready-made clothing laundry in a drum-type dryer
FR2738262B1 (fr) * 1995-09-01 1997-09-26 Esswein Sa Procede de sechage ameliore du linge et machine le mettant en oeuvre

Also Published As

Publication number Publication date
HK1022001A1 (en) 2000-07-21
ATE241719T1 (de) 2003-06-15
ES2200301T3 (es) 2004-03-01
PT937810E (pt) 2003-10-31
DE69815056D1 (de) 2003-07-03
EP0937810A1 (de) 1999-08-25
DE69815056T2 (de) 2004-03-18
DK0937810T3 (da) 2003-10-27

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