EP1529869A2 - Trommelwaschmaschine - Google Patents

Trommelwaschmaschine Download PDF

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Publication number
EP1529869A2
EP1529869A2 EP04026161A EP04026161A EP1529869A2 EP 1529869 A2 EP1529869 A2 EP 1529869A2 EP 04026161 A EP04026161 A EP 04026161A EP 04026161 A EP04026161 A EP 04026161A EP 1529869 A2 EP1529869 A2 EP 1529869A2
Authority
EP
European Patent Office
Prior art keywords
rotary drum
laundry
opening
disposed
water tub
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Withdrawn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
EP04026161A
Other languages
English (en)
French (fr)
Other versions
EP1529869A3 (de
Inventor
Haruo Ida
Takayuki Ishihara
Tsuyoshi Fukuda
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
Matsushita Electric Industrial 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 Panasonic Corp, Matsushita Electric Industrial Co Ltd filed Critical Panasonic Corp
Publication of EP1529869A2 publication Critical patent/EP1529869A2/de
Publication of EP1529869A3 publication Critical patent/EP1529869A3/de
Withdrawn legal-status Critical Current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
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
    • 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
    • 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
    • D06F23/00—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 
    • D06F23/06—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 rotating or oscillating about an inclined axis
    • 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
    • D06F37/26—Casings; Tubs

Definitions

  • the present invention relates to a drum type washing machine for washing laundry accommodated in a rotary drum by rotating the rotary drum disposed in a water tub.
  • housing 57 of the washing machine has water tub 53 installed via a suspension structure. Disposed in water tub 53 is rotary drum 51 which is provided with multiple drum perforations 52 on its cylindrical surface and is driven to rotate by drum driving motor 55. Further, by opening door 54, which is installed at the front portion of housing 57, laundry can be loaded into or unloaded from rotary drum 51 via laundry loading/unloading opening 58 formed at the front portion of water tub 53.
  • the centers of the laundry loading/unloading opening and the door are arranged so that they lie on the substantially same line, namely, on the rotational axis of the rotary drum.
  • the diameter of the laundry loading/unloading opening, formed at the front portion of the water tub is designed to be smaller than the cross section of the rotary drum.
  • the size of the laundry loading/unloading opening has an optimum size with respect to the diameter of the door. Accordingly, the loading/unloading opening is sized with respect to the diameter of the door while noting the fact that possible installation space for the drum type washing machine will be limited if the door is too big.
  • the laundry loading/unloading opening and the door are arranged concentrically on the rotational axis of the rotary drum and the diameter of the laundry loading/unloading opening is formed to be smaller than the diameter of the rotary drum, there is a blind spot in the front portion of the rotary drum, i.e., a space that cannot be directly observed, when the door is opened. Therefore, user may fail to notice any laundry in the space and forget to take the laundry out while it is also difficult to reach the space to take out laundry therefrom.
  • a drum type washing machine including: a housing; a water tub disposed in the housing and includes a cylindrical body, the body having a base on one end and a lid for providing a laundry loading/unloading opening on the other end; a cylindrical rotary drum disposed in the body of the water tub and having a closed bottom and at its top a rotary drum opening, the rotary drum opening being disposed on the same side as the lid of the water tub; a motor installed at a center of the rotary drum; and a door installed in the housing, wherein the central axis of the laundry loading/unloading opening is positioned above a rotational axis of the rotary drum and the diameter of the laundry loading/unloading opening is smaller than that of the rotary drum opening; and the door is disposed to be substantially concentric with the laundry loading/unloading opening.
  • the rotary drum is disposed approximately concentric with and in the water tub, and the laundry loading/unloading opening formed at the water tub is placed such that its center is positioned above the center of the rotary drum.
  • the door installed at the housing is substantially concentric with the laundry loading/unloading opening. Therefore, when loading or unloading laundry into or out of the rotary drum by opening the door, user's line of vision can easily reach the inside of the rotary drum from above and the lower portion of the rotary drum can be observed easily because the centers of laundry loading/unloading opening and the door are positioned higher. Thus, user's line of vision is hardly obstructed from observing the area that used to be hidden from view so that user would not forget to take out any laundry in the area. Therefore, it is possible to fabricate a washing machine with such an enhanced feature to increase user convenience.
  • Housing 2 has therein water tub 3 supported on a suspension structure (not shown), and cylindrical rotary drum 5 having a bottom surface is disposed in water tub 3 such that the direction R of its rotational axis is slanted at a specific angle ⁇ with respect to the horizontal direction H.
  • rotary drum 5 is installed in water tub 3 such that its opening is positioned at the front portion of housing 2 while the bottom surface of rotary drum 5 is disposed at the rear portion of housing 2. Further, rotary drum 5 is slanted such that the direction R of the rotational axis thereof is declined toward the rear portion of housing 2 at the angle ⁇ .
  • Rotary drum 5 is driven to rotate by drum driving motor 4 installed at the rear portion of water tub 3.
  • Water tub 3 includes cylindrical main body 3a having a base and lid 3b connected to main body 3a, wherein lid 3b of the water tub extends in the negative radial direction (i.e., toward the center) to provide laundry loading/unloading opening 11 through which laundry is loaded into or unloaded from rotary drum 5.
  • lid 3b and main body 3a of water tub 3 are described as separate components herein, it is also possible to form lid 3b and main body 3a seamlessly as one component. For instance, when lid 3b and main body 3a are formed of, e.g., a plastic material, they are molded as one body, or, when they are made of, e.g., a metallic material, they are manufactured as one body. Laundry can be loaded into or unloaded from rotary drum 2 after door 8 is opened. Further, by forming door 8 partially or entirely with a transparent material, the inside of rotary drum 5 can be viewed from outside.
  • bellows 15 which is made of a flexible elastic body, is disposed around laundry loading/unloading opening 11. Accordingly, when door 8 is closed, the inner surface of door 8 makes a pressurized contact with an end of bellows 15, to thereby prevent splashed water by the rotation of rotary drum from running over water tub 3.
  • drum type washing machine 1 can be configured to be suitable for even small houses with limited space.
  • laundry loading/unloading opening 11 location it is formed such that its center lies above the rotational axis of rotary drum 5. Further, door 8 is disposed to be substantially concentric with laundry loading/unloading opening 11. Since there is an optimum diameter of door 8 with respect to, e.g., an installation space of washing machine 1, the diameter of door 8 is smaller than that of rotary drum opening. Further, since laundry loading/unloading opening 11 is sized corresponding to the diameter of door 8, the diameter of laundry loading/unloading opening 11 is also formed to be smaller than that of rotary drum opening.
  • Inventors of the present invention conducted extensive research to find an optimum angle e of inclination of rotary drum 5, and it was found that the preferable angle to be about 30 ⁇ 5 degrees.
  • the preferable angle to be about 30 ⁇ 5 degrees.
  • crescent-shaped laundry anti-trap protrusion 16 for preventing laundry from being trapped between rotary drum 5 and lid 3b is installed at the lower half portion of lid 3b, where lid 3b overlaps with the rotary drum opening, such that the protrusion 16 projects out toward the inside of rotary drum 5.
  • Fig. 2 provides a plan view of lid 3b of water tub 3, as viewed from inside.
  • laundry loading/unloading opening 11 is disposed such that its center lies above the center of rotary drum 5 and laundry anti-trap protrusion 16 having its central axis below the central axis of rotary drum 5 is formed in crescent shape and projected toward the inside of rotary drum 5.
  • slanted rotary drum 5 offers advantages such that it facilitates loading and unloading of laundry, and it allows for a higher water depth level even with a small quantity of water because supplied water in rotary drum 5 collects in the rear portion.
  • the drum design also has a disadvantage such that laundry in rotary drum 5 would gather at the lowest point, which is the lower rear portion of rotary drum 5. This laundry's tendency to gather in the rear area is further augmented by rotation of the drum 5. Thus, it is not possible to provide a satisfactory degree of detergency to all laundry articles being washed by changing their positions in rotary drum 5.
  • the problem is solved by changing the positions of laundry articles in rotary drum 5 by way of controlling the rotation of rotary drum 5 driven by drum driving motor 4 and by way of agitation blades 9 provided on the inner cylindrical surface of rotary drum 5.
  • the inside of the rotary drum can be seen more extensively when the door, which is provided at a position corresponding to the laundry loading/unloading opening, is opened even though the diameters of the door and the laundry loading/unloading opening are designed to be smaller than that of the rotary drum opening. Therefore, areas with blind spots are made smaller, and laundry in the rotary drum can be seen more easily. As a result, it is highly unlikely that a user would fail to notice and take out laundry from the rotary drum so that a more convenient washing machine is obtained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP04026161A 2003-11-07 2004-11-04 Trommelwaschmaschine Withdrawn EP1529869A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003378121A JP4368661B2 (ja) 2003-11-07 2003-11-07 ドラム式洗濯機
JP2003378121 2003-11-07

Publications (2)

Publication Number Publication Date
EP1529869A2 true EP1529869A2 (de) 2005-05-11
EP1529869A3 EP1529869A3 (de) 2009-01-14

Family

ID=34431335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04026161A Withdrawn EP1529869A3 (de) 2003-11-07 2004-11-04 Trommelwaschmaschine

Country Status (7)

Country Link
EP (1) EP1529869A3 (de)
JP (1) JP4368661B2 (de)
KR (1) KR100632538B1 (de)
CN (4) CN2883445Y (de)
MY (1) MY143689A (de)
SG (1) SG112087A1 (de)
TW (1) TWI252882B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000592A1 (de) * 2006-06-27 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Von vorn beschickbare wäschebehandlungsmaschine
EP2435624A4 (de) * 2009-05-28 2014-03-26 Lg Electronics Inc Waschmaschine
US8800165B2 (en) 2009-05-28 2014-08-12 Lg Electronics Inc. Laundry machine having a drying function
US9051679B2 (en) 2009-05-28 2015-06-09 Lg Electronics Inc. Laundry machine
US9103063B2 (en) 2009-05-28 2015-08-11 Lg Electronics Inc. Laundry machine with suspension assembly
US9447534B2 (en) 2008-12-30 2016-09-20 Lg Electronics Inc. Laundry machine
US9828715B2 (en) 2009-05-28 2017-11-28 Lg Electronics Inc. Laundry maching having a drying function

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4551299B2 (ja) * 2005-09-08 2010-09-22 パナソニック株式会社 ドラム式洗濯機
JP4548299B2 (ja) * 2005-10-13 2010-09-22 パナソニック株式会社 ドラム式洗濯機
JP4301267B2 (ja) * 2006-08-30 2009-07-22 パナソニック株式会社 ドラム式洗濯機
JP2012228409A (ja) * 2011-04-27 2012-11-22 Panasonic Corp ドラム式洗濯機
JP5537514B2 (ja) * 2011-08-29 2014-07-02 日立アプライアンス株式会社 ドラム式洗濯機
KR102204614B1 (ko) * 2014-02-20 2021-01-19 엘지전자 주식회사 의류처리장치
CN106795686B (zh) * 2015-02-13 2019-06-11 松下知识产权经营株式会社 洗衣机
CN112760899A (zh) * 2020-12-30 2021-05-07 广州革云士智能科技有限公司 一种超声波滚筒洗衣机结构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1272065B (it) * 1993-11-30 1997-06-11 Merloni Elettrodomestici Spa Macchina lavabiancheria a carica frontale.
FR2736942B1 (fr) * 1995-07-21 1997-08-14 Ciapem Lave-linge ou seche-linge a chargement frontal
IT245310Y1 (it) * 1998-04-20 2002-03-20 Electrolux Zanussi Elettrodome Macchina lavatrice domestica
US6256823B1 (en) * 1999-06-29 2001-07-10 The Chardon Rubber Company Bellows for front loading washing machines
IT248153Y1 (it) * 1999-11-23 2002-12-10 Electrolux Zanussi Elettrodome Macchina per il lavaggio e/o l'asciugatura della biancheria con apertura frontale di caricamento migliorata
EP1285986B1 (de) * 2001-08-14 2004-07-28 CANDY S.p.A. Verbesserte Waschmaschine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008000592A1 (de) * 2006-06-27 2008-01-03 BSH Bosch und Siemens Hausgeräte GmbH Von vorn beschickbare wäschebehandlungsmaschine
CN101466885B (zh) * 2006-06-27 2011-05-04 Bsh博世和西门子家用器具有限公司 前装载式衣物处理机
US8099983B2 (en) 2006-06-27 2012-01-24 Bsh Bosch Und Siemens Hausgeraete Gmbh Front-loading laundry treatment machine
US9447534B2 (en) 2008-12-30 2016-09-20 Lg Electronics Inc. Laundry machine
US9103063B2 (en) 2009-05-28 2015-08-11 Lg Electronics Inc. Laundry machine with suspension assembly
US9051679B2 (en) 2009-05-28 2015-06-09 Lg Electronics Inc. Laundry machine
US8800165B2 (en) 2009-05-28 2014-08-12 Lg Electronics Inc. Laundry machine having a drying function
US9194073B2 (en) 2009-05-28 2015-11-24 Lg Electronics Inc. Laundry machine having a drying function
US9200838B2 (en) 2009-05-28 2015-12-01 Lg Electronics Inc. Laundry machine having a drying function
US9200837B2 (en) 2009-05-28 2015-12-01 Lg Electronics, Inc. Laundry machine having a drying function
US9255353B2 (en) 2009-05-28 2016-02-09 Lg Electronics Inc. Laundry machine having a drying function
US9284677B2 (en) 2009-05-28 2016-03-15 Lg Electronics Inc. Laundry machine
US9422657B2 (en) 2009-05-28 2016-08-23 Lg Electronics Inc. Washing machine
EP2435624A4 (de) * 2009-05-28 2014-03-26 Lg Electronics Inc Waschmaschine
US9828715B2 (en) 2009-05-28 2017-11-28 Lg Electronics Inc. Laundry maching having a drying function

Also Published As

Publication number Publication date
CN2761663Y (zh) 2006-03-01
CN1614121A (zh) 2005-05-11
JP4368661B2 (ja) 2009-11-18
SG112087A1 (en) 2005-06-29
CN2883445Y (zh) 2007-03-28
KR20050044249A (ko) 2005-05-12
MY143689A (en) 2011-06-30
TWI252882B (en) 2006-04-11
EP1529869A3 (de) 2009-01-14
TW200519258A (en) 2005-06-16
KR100632538B1 (ko) 2006-10-09
JP2005137641A (ja) 2005-06-02
CN1769571A (zh) 2006-05-10

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