EP2562301A1 - Trommelwaschmaschine - Google Patents

Trommelwaschmaschine Download PDF

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Publication number
EP2562301A1
EP2562301A1 EP12749539A EP12749539A EP2562301A1 EP 2562301 A1 EP2562301 A1 EP 2562301A1 EP 12749539 A EP12749539 A EP 12749539A EP 12749539 A EP12749539 A EP 12749539A EP 2562301 A1 EP2562301 A1 EP 2562301A1
Authority
EP
European Patent Office
Prior art keywords
drum
rotary drum
baffles
rotation
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
EP12749539A
Other languages
English (en)
French (fr)
Other versions
EP2562301B1 (de
EP2562301A4 (de
Inventor
Fumihiko Migaki
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
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 filed Critical Panasonic Corp
Publication of EP2562301A1 publication Critical patent/EP2562301A1/de
Publication of EP2562301A4 publication Critical patent/EP2562301A4/de
Application granted granted Critical
Publication of EP2562301B1 publication Critical patent/EP2562301B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 
    • D06F23/02—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 a horizontal 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
    • D06F37/02—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

Definitions

  • the present invention relates to a drum-type washing machine for washing a laundry in a rotary drum.
  • Fig. 3 shows a sectional view of a conventional drum-type washing machine described in Patent Literature 1.
  • a water tank 2 supported by a plurality of suspensions are arranged in a housing 1.
  • the water tank 2 has a substantially cylinder shape axisymmetrical about an axis of rotation.
  • the axis of rotation of the water tank 2 is inclined forward and upward with respect to the horizontal direction in such a manner that a bottom surface portion 4a of the water tank 2 is lower than an opening portion 2a on a front surface side of the water tank 2.
  • a drum 4 having a large number of holes 3 on a peripheral wall is arranged in the water tank 2.
  • the drum 4 is driven and rotated by a drive device 5 provided in the bottom surface portion of the water tank 2 such as a motor.
  • the drum 4 is rotated in a forward direction or in a reverse direction (i.e., forward-reverse rotation).
  • baffles 6 extend toward the opening portion 2a from the bottom surface portion 4a in the drum 4 and protrude inwardly toward the rotation axis the drum 4. Size of the baffles 6 is larger on the side of the bottom surface portion 4a than on the side of the opening portion 2a.
  • D1 is smaller than D2 (D1 ⁇ D2). That is, the drum 4 has a taper structure that a diameter of the front surface portion is larger than a diameter of the bottom surface portion (i.e., the taper structure that a diameter is larger on the front surface side).
  • An auxiliary baffle 21 is provided in the bottom surface portion 4a of the drum 4.
  • the auxiliary baffle 21 is continuously connected to both side surfaces 6a of the baffles 6 so as to form an inclined surface 21 a spreading toward the bottom surface portion 4a of the drum 4.
  • the laundry can be moved to the side of the front surface portion of the drum 4 by the auxiliary baffle 21.
  • Patent Literature 1 JP 2009-22688 A
  • the drum 4 in the above conventional configuration has the taper structure that the diameter is larger on the front surface side.
  • the drum 4 when the drum 4 is rotated, the laundry is easily moved to the front surface side of the drum 4.
  • circumferential speed of the drum is high on the side of the bottom surface portion 4a of the drum 4.
  • the laundry easily gets entangled (easily gets together). Since the laundry entangled in the bottom surface portion 4a of the drum 4 is moved to the front surface side of the drum 4, washing is not efficiently performed. Since the laundry is leaned to one side, an interior of the drum 4 becomes an imbalance state (unstable state), so that vibration becomes larger at the time of spin-drying.
  • the present invention is to solve the above conventional problems, and an object thereof is to provide a drum-type washing machine capable of reducing vibration at the time of spin-drying by efficiently performing an agitation action and dispersing a laundry.
  • a drum-type washing machine of the present invention includes a rotary drum in which an axis of rotation is horizontally arranged or is arranged so as to be inclined downward from a front surface side toward a back surface side, a water tank rotatably incorporating the rotary drum, and a motor for rotating the rotary drum, wherein the rotary drum has a plurality of wall surface baffles on an inner wall surface and has a plurality of bottom surface baffles on an inner bottom surface; and the wall surface baffles and the bottom surface baffles are alternately arranged on a circumference taking the axis of rotation as a center.
  • vibration at the time of spin-drying is reduced by efficiently performing an agitation action and dispersing a laundry.
  • the vibration at the time of spin-drying can be reduced by efficiently performing the agitation action and dispersing the laundry.
  • a drum-type washing machine in which an axis of rotation is horizontally arranged or is arranged so as to be inclined downward from a front surface side toward a back surface side, a water tank rotatably incorporating the rotary drum, and a motor for rotating the rotary drum, wherein the rotary drum has a plurality of wall surface baffles on an inner wall surface and has a plurality of bottom surface baffles on an inner bottom surface, and the wall surface baffles and the bottom surface baffles are alternately arranged on a circumference taking the axis of rotation as a center.
  • the bottom surface baffles protrude higher as the bottom surface baffles come closer to the axis of rotation of the rotary drum in the drum-type washing machine of the first aspect of the invention.
  • Fig. 1 shows a sectional view of a drum-type washing machine in the embodiment of the present invention.
  • a rotary drum 31 has a cylindrical shape with a bottom.
  • a large number of water passage holes 32 are provided on the entire surface of an outer peripheral portion of the rotary drum 31.
  • a water tank 33 rotatably incorporates the rotary drum 31.
  • An axis of rotation (rotation center axis) 34 passing through a rotation center of the rotary drum 31 is arranged so as to be inclined downward from the front surface side toward the back surface side of the drum-type washing machine.
  • a belt 47 is coupled to the axis of rotation 34, and a motor 35 positioned in the vicinity of the back surface side of the water tank 33 is coupled to the belt 47. By driving the motor 35, the rotary drum 31 is driven and rotated in a forward direction or in a reverse direction.
  • An inclination angle of the rotary drum 31 and the axis of rotation 34 with respect to the horizontal direction is for example 10 degrees.
  • a plurality of wall surface baffles 36 serving as protruding portions for agitating clothing are provided on an inner wall surface of the rotary drum 31 .
  • a plurality of bottom surface baffles 46 protruding higher as the bottom surface baffles come closer to the axis of rotation 34 (i.e., the rotation center of the rotary drum 31) are formes, It should be noted that a case where the axis of rotation is arranged so as to be inclined downward from the front surface side toward the back surface side is described in the present embodiment. However, the axis of rotation may be horizontally arranged.
  • a ring shape projection 52 is formed on the outer peripheral side of an inner bottom surface of the water tank 33.
  • a gap between the inner bottom surface of the water tank 33 and an outer bottom surface of the rotary drum 31 is reduced by the ring shape projection 52 to an allowable extent in terms of manufacture.
  • a drive shaft flange 51 for improving strength of the rotary drum 31 is fixed on the outer bottom surface side of the rotary drum 31.
  • a water tank unit 60 of a vibration system is configured by the rotary drum 31, the drive shaft flange 51, the water tank 33, the motor 35, and the like.
  • An opening portion is provided on an upward inclined surface of a washing machine main body 39 positioned on the front opening portion side of the water tank 33, and the opening portion is openably and closably covered by a lid body 37.
  • a lid body 37 By opening the lid body 37, a laundry can be taken out and brought into the rotary drum 31 through a clothing outlet/inlet 38 serving as an opening portion provided in the rotary drum 31.
  • an anti-vibration member 41 is attached on the lower side, and a spring body 48 is attached on the upper side.
  • the water tank unit 60 is oscillatably supported by the anti-vibration member 41 and the spring body 48.
  • One end of a drainage passage 42 is connected to a lower part of the water tank 33.
  • the other end of the drainage passage 42 is connected to a drainage valve 43.
  • a water supply valve 44 is provided on the upper side.
  • a water supply passage 45 is connected to the water supply valve 44.
  • the water supply passage 45 communicates with the water tank 33 via a detergent case 53 (not shown in Fig. 1 ). Water supplied from the water supply passage 45 enters the detergent case 53, dissolves detergent in the detergent case 53, and enters the water tank 33 as the washing water. In such a way, the water supply valve 44 supplies the washing water into the water tank 33.
  • a controller 56 is provided on the upper side.
  • the controller 56 controls actions of the motor 35 and the like, and controls each step such as washing, rinsing, and spin-drying.
  • the motor 35 configured by a DC brushless motor or the like is controlled by the controller 56, a drive circuit (not shown), and the like in such a manner that forward-reverse rotation is variable and the rotation number is variable.
  • an input setting portion 49 for a user to select a washing course or the like and a display portion 50 for displaying a selection result, a progress degree of the steps, an action error, and the like so as to notify the user are provided.
  • Fig. 2 is a sectional view to see the bottom surface side of the rotary drum 31 of the drum-type washing machine in the embodiment of the present invention.
  • the plurality of wall surface baffles 36 for agitating the clothing are provided on the inner wall surface of the rotary drum 31, and the plurality of bottom surface baffles 46 are provided on the inner bottom surface of the rotary drum 31.
  • the wall surface baffles 36 and the bottom surface baffles 46 are alternately arranged on a circumference taking the axis of rotation 34 of the rotary drum 31 as a center.
  • Fig. 2 shows a case where the three wall surface baffles 36 and the three bottom surface baffles 46 are provided.
  • the number of the wall surface baffles 36 and the number of the bottom surface baffles 46 are not limited to this but can be appropriately set.
  • Step S1 After opening the lid body 37, bringing the laundry into the rotary drum 31, and bringing a predetermined amount of detergent into the detergent case 53, the user operates the input setting portion 49 so as to start an operation of the drum-type washing machine.
  • a washing step is firstly executed (Step S1).
  • the washing water is supplied by activating the water supply valve 44.
  • the supplied washing water passes through the water supply passage 45 and the detergent case 53 and enters the water tank 33 together with the detergent.
  • the motor 35 is controlled so that rotation speed of the rotary drum 31 is increased to predetermined rotation speed.
  • actions of the rotary drum 31 consisting of forward rotation, pause, reverse rotation, and pause serve as one cycle, and repeating the cycle (washing action) is executed for a predetermined time.
  • the plurality of wall surface baffles 36 and the bottom surface baffles 46 are alternately arranged on the circumference.
  • the laundry positioned on the lower side (laundry positioned in a right lower part of the rotary drum 31 in Fig. 1 ) is pushed upward by the bottom surface baffles 46.
  • the laundry pushed upward is moved in the rotation direction by the wall surface baffles 36 and then dropped downward.
  • the drum-type washing machine in the present embodiment can three-dimensionally rotate the laundry in the rotary drum 31 so as to efficiently perform the washing action and disperse the laundry without entangling the laundry.
  • the laundry is brought up so as to be nipped between the wall surface baffles 36 and the bottom surface baffles 46. Therefore, the laundry is not easily slipped off the wall surface baffles 36 while being brought up by the wall surface baffles 36. After being pushed upward, the laundry is dropped. Thus, a beat-washing effect can be obtained so that a washing performance is improved.
  • the bottom surface baffles 46 protrude higher toward the opening portion side of the rotary drum 31 as the bottom surface baffles come closer to a center (axis of rotation 34) of the rotary drum 31.
  • Step S2 a first drainage step
  • Step S3 a rinsing step
  • Step S5 a spin-drying step
  • the plurality of wall surface baffles 36 provided on the inner wall surface of the rotary drum 31 and the plurality of bottom surface baffles 46 provided on the inner bottom surface of the rotary drum 31 are alternately arranged on the circumference taking the axis of rotation 34 of the rotary drum 31 as a center.
  • the washing machine according to the present invention can disperse the laundry in the rotary drum without entangling the laundry and efficiently perform the washing action and a rinsing action.
  • the washing machine can be applied to other washing machines and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
EP12749539.8A 2011-02-23 2012-02-22 Trommelwaschmaschine Not-in-force EP2562301B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011036735A JP2012170680A (ja) 2011-02-23 2011-02-23 ドラム式洗濯機
PCT/JP2012/001204 WO2012114741A1 (ja) 2011-02-23 2012-02-22 ドラム式洗濯機

Publications (3)

Publication Number Publication Date
EP2562301A1 true EP2562301A1 (de) 2013-02-27
EP2562301A4 EP2562301A4 (de) 2013-09-25
EP2562301B1 EP2562301B1 (de) 2014-12-31

Family

ID=46720533

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12749539.8A Not-in-force EP2562301B1 (de) 2011-02-23 2012-02-22 Trommelwaschmaschine

Country Status (5)

Country Link
US (1) US20130025332A1 (de)
EP (1) EP2562301B1 (de)
JP (1) JP2012170680A (de)
CN (1) CN102812174A (de)
WO (1) WO2012114741A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014064727A (ja) * 2012-09-26 2014-04-17 Hitachi Appliances Inc ドラム式洗濯機およびドラム式洗濯乾燥機
JP6140022B2 (ja) * 2013-07-26 2017-05-31 シャープ株式会社 洗濯機
WO2016144758A1 (en) * 2015-03-06 2016-09-15 Hg LAUNDRY SYSTEMS, LLC Washing machine with positive pressure moisture extraction
CN107893261A (zh) * 2017-12-21 2018-04-10 徐州腾宇羽绒制品设备有限公司 倾斜洗毛机

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021533A1 (de) * 1990-07-06 1992-01-09 Bauknecht Hausgeraete Trockner oder waschtrockner mit einer waeschetrommel
JP2002315985A (ja) * 2001-04-20 2002-10-29 Sanyo Electric Co Ltd ドラム式洗濯機
JP2007117337A (ja) * 2005-10-27 2007-05-17 Sanyo Electric Co Ltd 衣類乾燥機
JP2009022688A (ja) * 2007-07-24 2009-02-05 Panasonic Corp ドラム式洗濯乾燥機

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS47146Y1 (de) * 1968-07-05 1972-01-06
JPH07116393A (ja) * 1993-10-22 1995-05-09 Matsushita Electric Ind Co Ltd 衣類乾燥機
JPH09215894A (ja) * 1996-02-15 1997-08-19 Matsushita Electric Ind Co Ltd 洗濯機
KR101054408B1 (ko) * 2004-04-19 2011-08-05 엘지전자 주식회사 세탁기
JP2006223452A (ja) * 2005-02-16 2006-08-31 Toshiba Corp ドラム式洗濯機
KR101253566B1 (ko) * 2005-07-07 2013-04-11 삼성전자주식회사 드럼세탁기
JP4275160B2 (ja) * 2006-08-24 2009-06-10 三洋電機株式会社 ドラム式洗濯機
JP4893229B2 (ja) * 2006-10-26 2012-03-07 パナソニック株式会社 ドラム式洗濯機
JP4713620B2 (ja) * 2008-09-05 2011-06-29 日立アプライアンス株式会社 洗濯乾燥機
JP2011036735A (ja) 2009-08-06 2011-02-24 Panasonic Electric Works Co Ltd 静電霧化装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4021533A1 (de) * 1990-07-06 1992-01-09 Bauknecht Hausgeraete Trockner oder waschtrockner mit einer waeschetrommel
JP2002315985A (ja) * 2001-04-20 2002-10-29 Sanyo Electric Co Ltd ドラム式洗濯機
JP2007117337A (ja) * 2005-10-27 2007-05-17 Sanyo Electric Co Ltd 衣類乾燥機
JP2009022688A (ja) * 2007-07-24 2009-02-05 Panasonic Corp ドラム式洗濯乾燥機

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012114741A1 *

Also Published As

Publication number Publication date
WO2012114741A1 (ja) 2012-08-30
JP2012170680A (ja) 2012-09-10
EP2562301B1 (de) 2014-12-31
US20130025332A1 (en) 2013-01-31
EP2562301A4 (de) 2013-09-25
CN102812174A (zh) 2012-12-05

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