EP1634985A1 - Washing machine - Google Patents

Washing machine Download PDF

Info

Publication number
EP1634985A1
EP1634985A1 EP05103537A EP05103537A EP1634985A1 EP 1634985 A1 EP1634985 A1 EP 1634985A1 EP 05103537 A EP05103537 A EP 05103537A EP 05103537 A EP05103537 A EP 05103537A EP 1634985 A1 EP1634985 A1 EP 1634985A1
Authority
EP
European Patent Office
Prior art keywords
drum
washing machine
rotation
angle
reverse
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Withdrawn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
EP05103537A
Other languages
German (de)
English (en)
French (fr)
Inventor
Chang Joo Park
Hyun Bae Kim
Chang Hyun Kim
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1634985A1 publication Critical patent/EP1634985A1/en
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a method of controlling a washing machine comprising a water tub to contain water and a drum rotatably installed in the water tub to contain laundry, the method comprising the steps of alternately rotating the drum in opposing first and second directions by predetermined angles so as to create a swing motion of the drum.
  • a conventional drum type washing machine includes a water tub installed in a machine body to contain wash or rinsing water and a rotatable drum installed in the water tub.
  • a driving force is supplied to the drum by a motor so that the drum can carry out laundry wash and spin-dry cycles.
  • the drum is perforated with a plurality of small holes which allow the wash or rinsing water to flow between the drum and the water tub and in the spin-dry cycle, to centrifugally drain water from laundry, the water discharged into a space between the drum and the water tub through the small holes.
  • the laundry in the drum is raised by the rotation of the drum along an inner peripheral wall surface of the drum and then dropped from the vicinity of the apex of the drum, so that the laundry is agitated and washed by way of force and friction generated by dropping.
  • Japanese Patent Laid-Open No. H09-276582 describes a method of minimizing damage to the laundry by rotating the drum such that it has a swinging manner within a set range so that movement of the laundry is prevented. In this case, however, a two-revolution operation of the drum is added in the course of laundry soak and wash cycles to overturn the laundry, resulting in a limited reduction in laundry damage.
  • the wash cycle of the laundry is divided into two portions periods.
  • wash water is supplied to the water tub to provide a first water level and the drum is rotated by a first rotation angle, causing the laundry to be dropped and turned.
  • wash water is supplied to the water tub to maintain a second water level which is higher than the first level and the drum is rotated by a second angle of rotation smaller than the first angle of rotation.
  • This allows the laundry to be swung whilst completely immersed in the wash water so as to reduce laundry damage.
  • the laundry in order to sufficiently douse the laundry with the wash water at a low level in the laundry douse cycle, the laundry must be dropped from a high angle of the drum. This may cause damage to the laundry.
  • the present invention seeks to provide a drum type washing machine which overcomes or substantially alleviates the problems discussed above and in which the washing machine minimizes damage to laundry during washing and enables effective washing of the laundry.
  • a drum type washing machine is characterised in that the angle of rotation in the first direction is less than the angle of rotation in the second opposing direction.
  • the difference between the first and second angles of rotation is 15 degrees.
  • the angle of rotation of the drum in the first direction is 45 degrees and the angle of rotation in the second direction is 60 degrees.
  • the motion of the drum may cause the continuous overturn of the laundry in the drum.
  • a washing machine is characterised in that the control unit controls the angle of rotation of the drum such that the angle of rotation in the first direction is less than the angle of rotation in the second direction.
  • FIG. 1 a drum type washing machine including a water tub 102 to contain wash or rinsing water installed in a machine body 100.
  • a rotatable drum 108 is installed in the water tub 102 and is adapted to carry out laundry wash and spin-dry cycles.
  • a motor 110 supplies a driving force to rotate the drum 108.
  • the peripheral walls of the drum 108 are perforated with a plurality of small holes allowing the wash or rinsing water to flow between the drum 108 and the water tub 102 and, in the spin-dry cycle, water centrifugally drained from laundry to be discharged into a space between the drum 108 and the water tub 102 through the small holes.
  • the laundry in the drum 108 is elevated upwards along an inner circumferential surface of the drum 108 and then dropped from the vicinity of the drum apex (i.e. the highest point) so that the laundry is washed by way of force and friction generated by dropping.
  • the washing machine includes a control unit 202, a water level sensor 204, and an input unit 206.
  • the control unit 202 controls the general operation of the washing machine including douse, wash, rinse, spin-dry and dehydration (drying) of clothes.
  • the water level sensor 204 detects the level of the wash water supplied in the water tub 102 and delivers the detected water level value to the control unit 202.
  • the input unit 206 enables a user to select a desired wash mode and transmits the selected wash mode to the control unit 202.
  • the drum type washing machine also includes a drive unit 210 to drive the motor 110, a drain pump 116, a dehydration heater 216 and a display device 218.
  • the motor 110 rotates the drum 108 in forward or reverse directions for specified periods, and in the spin-dry cycle, rotates the drum 108 at a high speed.
  • the drain pump 116 forcibly discharges the wash water from the water tub 102 and the dehydration heater 216 heats air introduced into the water tub 102 causing dehydration (drying) of the laundry using the heated air.
  • the display device 218 indicates the operation state of the washing machine to a user.
  • the drum 108 carries out an asymmetric swing motion, rather than a continuous rotating motion, during the laundry douse or wash cycle.
  • the forward rotation angle is larger than the reverse rotation angle.
  • the drum 108 rotates in a reverse direction CW by an angle of 45° as shown in Figure 4A and then rotates in a forward direction CCW by an angle of 60° resulting in the net forward rotation of the drum by 15°.
  • FIG. 5 A diagrammatic view illustrating the gradual forward rotation of the drum 108 caused by the asymmetric swing motion of the washing machine is shown in Figure 5.
  • the drum 108 firstly rotates in the reverse direction CW by a specified angle to set an initial position (as indicated by an arrow O in Figure 5). Then, starting from the initial position, the drum 108 alternately rotates in the forward direction CCW (as indicated by arrows 1, 3 and 5) and in the reverse direction CW (as indicated by arrows 2 and 4) carrying out the asymmetric swing motion.
  • the drum 108 gradually rotates in the forward direction CCW by an increment of 15° as explained in conjunction with Figures 4A and 4B. That is, the drum 108 simultaneously carries out both a swing motion and a gradual forward rotation.
  • the x-axis represents time
  • the y-axis represents a velocity command.
  • the desired wash mode is initially set (operation 702). In this case, it is determined whether the wash mode selected by the user is the swing mode suitable to protect the laundry from excessive shock and friction generated by the rotation of the drum or not (operation 704). If not, the corresponding wash mode is carried out (operation 706).
  • the drum initially rotates in the reverse direction by the specified angle and subsequently the drum is controlled in a rotational direction such that it alternately rotates in forward and reverse direction by the specified forward and reverse rotation angles (operation 708). After the lapse of a predetermined time, the swing mode ends (operation 710).
  • the present invention seeks to provide a drum type washing machine which can minimize damage to laundry, specifically silk, or wool laundry vulnerable to shock or friction caused during washing, by carrying out an asymmetric swing motion of a drum thereof. Further, according to the aforementioned embodiment of the present invention, since the drum simultaneously swings and gradually rotates forward, laundry can be easily overturned even by rotation of the drum across a small angle, resulting in a reduction of douse or wash time and enabling effective washing of the laundry. The gradual forward rotation, furthermore, enables continuous overturn of the laundry.

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)
EP05103537A 2004-09-08 2005-04-28 Washing machine Withdrawn EP1634985A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040071895A KR20060023067A (ko) 2004-09-08 2004-09-08 세탁기

Publications (1)

Publication Number Publication Date
EP1634985A1 true EP1634985A1 (en) 2006-03-15

Family

ID=36155512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05103537A Withdrawn EP1634985A1 (en) 2004-09-08 2005-04-28 Washing machine

Country Status (4)

Country Link
US (1) US20060048548A1 (ja)
EP (1) EP1634985A1 (ja)
JP (1) JP2006075587A (ja)
KR (1) KR20060023067A (ja)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008021198A1 (de) * 2008-04-28 2009-11-05 Miele & Cie. Kg Verfahren zum Waschen von Textilien oder Schuhen in einer Waschmaschine und Waschmaschine
WO2009017361A3 (en) * 2007-08-01 2010-08-12 Lg Electronics Inc. Laundry machine and method of controlling the same
CN101818434A (zh) * 2009-08-11 2010-09-01 南京乐金熊猫电器有限公司 洗衣装置的控制方法
US8713736B2 (en) 2008-08-01 2014-05-06 Lg Electronics Inc. Control method of a laundry machine
US8746015B2 (en) 2008-08-01 2014-06-10 Lg Electronics Inc. Laundry machine
US8763184B2 (en) 2008-08-01 2014-07-01 Lg Electronics Inc. Control method of a laundry machine
US8776297B2 (en) 2009-10-13 2014-07-15 Lg Electronics Inc. Laundry treating apparatus and method
US8966944B2 (en) 2008-08-01 2015-03-03 Lg Electronics Inc. Control method of a laundry machine
US9045853B2 (en) 2009-10-13 2015-06-02 Lg Electronics Inc. Laundry treating apparatus
US9234307B2 (en) 2009-07-27 2016-01-12 Lg Electronics Inc. Control method of a laundry machine
US9416478B2 (en) 2009-03-31 2016-08-16 Lg Electronics Inc. Washing machine and washing method
US9695537B2 (en) 2009-07-27 2017-07-04 Lg Electronics Inc. Control method of a laundry machine
US9822473B2 (en) 2009-07-27 2017-11-21 Lg Electronics Inc. Control method of a laundry machine
US9932699B2 (en) 2009-02-11 2018-04-03 Lg Electronics Inc. Washing method and washing machine
US10533275B2 (en) 2009-07-27 2020-01-14 Lg Electronics Inc. Control method of a laundry machine
CN111058230A (zh) * 2018-10-15 2020-04-24 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
CN111058226A (zh) * 2018-10-15 2020-04-24 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
WO2021197899A1 (de) * 2020-03-30 2021-10-07 Miele & Cie. Kg Verfahren und steuereinheit zum betreiben eines reinigungsgeräts in einem schonwaschgang und reinigungsgerät

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005016566A1 (de) * 2005-04-11 2006-10-12 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Waschen von schrumpfgefährdeten Textilien und Waschmaschine zum Durchführen desselben
DE102007028213A1 (de) * 2007-06-20 2008-12-24 BSH Bosch und Siemens Hausgeräte GmbH Waschmaschine und Verfahren zur Behandlung von Wäsche mit Schaum
JP4695630B2 (ja) * 2007-09-05 2011-06-08 パナソニック株式会社 ドラム式洗濯機
KR101507791B1 (ko) 2008-04-29 2015-04-03 엘지전자 주식회사 운동화코스를 구비한 세탁장치
KR101526989B1 (ko) * 2008-04-30 2015-06-11 엘지전자 주식회사 드럼 세탁기의 제어방법
KR20100028920A (ko) * 2008-09-05 2010-03-15 엘지전자 주식회사 세탁 방법 및 세탁기
US20110030149A1 (en) * 2008-08-01 2011-02-10 In Ho Cho Control method of a laundry machine
US20100024137A1 (en) * 2008-08-01 2010-02-04 Myong Hum Im Washing machine and washing method therefor
KR101526977B1 (ko) * 2008-08-06 2015-06-11 엘지전자 주식회사 세탁기의 제어 방법
GB0902619D0 (en) * 2009-02-17 2009-04-01 Xeros Ltd Cleaning apparatus
US8915972B2 (en) 2011-05-17 2014-12-23 Whirlpool Corporation Method and apparatus for determining load fall in a laundry treating appliance
CN109505092B (zh) * 2017-09-15 2021-05-25 无锡小天鹅电器有限公司 洗衣机控制方法及装置
JP7329723B2 (ja) * 2018-08-08 2023-08-21 パナソニックＩｐマネジメント株式会社 洗濯機
DE102020108667A1 (de) * 2020-03-30 2021-09-30 Miele & Cie. Kg Verfahren und Steuereinheit zur Waschmittelaktivierung für ein Reinigungsgerät mit einer drehbaren rippenlosen Trommel und Reinigungsgerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04193292A (ja) * 1990-11-27 1992-07-13 Brother Ind Ltd 脱水洗濯機
JPH09248395A (ja) * 1996-03-18 1997-09-22 Sharp Corp 洗濯方法及び回転ドラム式全自動洗濯機
JPH09276582A (ja) * 1996-02-15 1997-10-28 Matsushita Electric Ind Co Ltd 洗濯機
EP1524357A2 (en) * 2003-10-16 2005-04-20 LG Electronics Inc. Method of controlling a washing course in washing machine
EP1559826A2 (en) * 2004-01-27 2005-08-03 Whirlpool Corporation Randomly operated tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04193292A (ja) * 1990-11-27 1992-07-13 Brother Ind Ltd 脱水洗濯機
JPH09276582A (ja) * 1996-02-15 1997-10-28 Matsushita Electric Ind Co Ltd 洗濯機
JPH09248395A (ja) * 1996-03-18 1997-09-22 Sharp Corp 洗濯方法及び回転ドラム式全自動洗濯機
EP1524357A2 (en) * 2003-10-16 2005-04-20 LG Electronics Inc. Method of controlling a washing course in washing machine
EP1559826A2 (en) * 2004-01-27 2005-08-03 Whirlpool Corporation Randomly operated tumbling washing machine wash chamber for improving cleaning while minimizing mechanical damage to clothes

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 518 (C - 0999) 26 October 1992 (1992-10-26) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 01 30 January 1998 (1998-01-30) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 02 30 January 1998 (1998-01-30) *

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101939476B (zh) * 2007-08-01 2013-05-01 Lg电子株式会社 洗衣机及其控制方法
WO2009017361A3 (en) * 2007-08-01 2010-08-12 Lg Electronics Inc. Laundry machine and method of controlling the same
US8914931B2 (en) 2007-08-01 2014-12-23 Lg Electronics Inc. Method for controlling a laundry machine using first and second rotations
DE102008021198B4 (de) * 2008-04-28 2016-10-20 Miele & Cie. Kg Verfahren zum Waschen von Textilien oder Schuhen in einer Waschmaschine
DE102008021198A1 (de) * 2008-04-28 2009-11-05 Miele & Cie. Kg Verfahren zum Waschen von Textilien oder Schuhen in einer Waschmaschine und Waschmaschine
US8966944B2 (en) 2008-08-01 2015-03-03 Lg Electronics Inc. Control method of a laundry machine
US8713736B2 (en) 2008-08-01 2014-05-06 Lg Electronics Inc. Control method of a laundry machine
US8746015B2 (en) 2008-08-01 2014-06-10 Lg Electronics Inc. Laundry machine
US8763184B2 (en) 2008-08-01 2014-07-01 Lg Electronics Inc. Control method of a laundry machine
US9932699B2 (en) 2009-02-11 2018-04-03 Lg Electronics Inc. Washing method and washing machine
US9416478B2 (en) 2009-03-31 2016-08-16 Lg Electronics Inc. Washing machine and washing method
US10533275B2 (en) 2009-07-27 2020-01-14 Lg Electronics Inc. Control method of a laundry machine
US9695537B2 (en) 2009-07-27 2017-07-04 Lg Electronics Inc. Control method of a laundry machine
US9822473B2 (en) 2009-07-27 2017-11-21 Lg Electronics Inc. Control method of a laundry machine
US9234307B2 (en) 2009-07-27 2016-01-12 Lg Electronics Inc. Control method of a laundry machine
CN102449220A (zh) * 2009-08-11 2012-05-09 Lg电子株式会社 洗衣机的控制方法
CN101818434B (zh) * 2009-08-11 2012-05-09 南京乐金熊猫电器有限公司 洗衣装置的控制方法
CN101818434A (zh) * 2009-08-11 2010-09-01 南京乐金熊猫电器有限公司 洗衣装置的控制方法
WO2011019203A3 (ko) * 2009-08-11 2011-05-05 엘지전자 주식회사 세탁장치의 제어방법
US9249534B2 (en) 2009-10-13 2016-02-02 Lg Electronics Inc. Laundry treating apparatus and method
US9045853B2 (en) 2009-10-13 2015-06-02 Lg Electronics Inc. Laundry treating apparatus
US8776297B2 (en) 2009-10-13 2014-07-15 Lg Electronics Inc. Laundry treating apparatus and method
CN111058230A (zh) * 2018-10-15 2020-04-24 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
CN111058226A (zh) * 2018-10-15 2020-04-24 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
CN111058226B (zh) * 2018-10-15 2022-04-01 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
CN111058230B (zh) * 2018-10-15 2022-04-01 广东威灵电机制造有限公司 一种洗衣机控制方法及洗衣机
WO2021197899A1 (de) * 2020-03-30 2021-10-07 Miele & Cie. Kg Verfahren und steuereinheit zum betreiben eines reinigungsgeräts in einem schonwaschgang und reinigungsgerät

Also Published As

Publication number Publication date
US20060048548A1 (en) 2006-03-09
JP2006075587A (ja) 2006-03-23
KR20060023067A (ko) 2006-03-13

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