EP1407071B1 - Tambour pour appareil electromenager - Google Patents

Tambour pour appareil electromenager Download PDF

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Publication number
EP1407071B1
EP1407071B1 EP02749421A EP02749421A EP1407071B1 EP 1407071 B1 EP1407071 B1 EP 1407071B1 EP 02749421 A EP02749421 A EP 02749421A EP 02749421 A EP02749421 A EP 02749421A EP 1407071 B1 EP1407071 B1 EP 1407071B1
Authority
EP
European Patent Office
Prior art keywords
drum
reductive
vibration
sound insulating
insulating member
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.)
Revoked
Application number
EP02749421A
Other languages
German (de)
English (en)
Other versions
EP1407071A1 (fr
Inventor
Ju Han Yoon
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.)
LG Electronics Inc
Original Assignee
LG Electronics Inc
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=19712299&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1407071(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1407071A1 publication Critical patent/EP1407071A1/fr
Application granted granted Critical
Publication of EP1407071B1 publication Critical patent/EP1407071B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • D06F58/00—Domestic laundry dryers
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 
    • D06F58/06—Mountings for the rotating drums
    • 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
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • 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
    • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04—Details 

Definitions

  • the present invention relates to a home appliance, and more particularly, to a drum device for minimizing noise from a drum in which washing or drying is in progress in a washing machine or a drying machine.
  • the dryer is an apparatus for drying objects, such as laundry, introduced into the drum by blowing air heated by an electric heater or a gas burner.
  • the specification takes a drum device used in the dryer as an example for convenience of description.
  • the present invention is applicable to any apparatus which uses a drum, such as a washing machine.
  • FIG. 1 illustrates a disassembled perspective view of key parts of a related art dryer. As shown, a drum 1 is installed in a cabinet (not shown) that forms an outside shape of the dryer.
  • the drum 1 is cylindrical, with opposite opened ends, and has a belt groove 2 along an outside circumference of a middle of the drum 1 for winding a drum belt 4 driven by a motor 3.
  • the drum 1 has a drying chamber 5 therein for carrying out drying.
  • the drum 1 has a plurality of baffles 6 for turning drying objects in the drying chamber 5. Since the drum 1 has high temperature air circulating inside of the drum 1, the drum 1 is in general formed of a metal, for an example, stainless steel.
  • Reference numeral 3' denotes a pulley for transmission of power from the motor 3 to the drum belt 4.
  • the drum 1 is provided with a front head 7 and a rear head 9 fitted to a front end and a rear end thereof, oppositely.
  • the front head 7 and the rear head 9 close opened parts of the drum 1, to form the drying chamber 5, and support the front end and the rear end of the drum 1.
  • the front head 7 has an opening 8 for making inside and outside of the drying chamber 5 in communication.
  • the opening 8 is selectively opened by a door (not shown).
  • the rear head 9 is fitted with an air supply duct 12, in communication with the inside of the drying chamber 5 for serving as a passage for supplying air, more precisely, a heated air to the inside of the drying chamber 5.
  • a lint duct 15 an air escape from the drying chamber 5, at one side of the front head 7 at a bottom of the opening 8 of the front head 7, having a lint filter therein for filtering foreign matters (for example, lint and dust) contained in the air escaping from the drying chamber 5.
  • blower 17 connected to the lint duct 15, for drawing air inside of the drying chamber 5 through the lint duct 15.
  • the blower 17 is fitted to an inside of a blower housing 18 having one side in communication with the lint duct 15 and the other side connected to an air discharge pipe 19. Therefore, the air, escaped from the drying chamber 5 and passed through the lint duct 15, is discharge to an outside through the air discharge pipe 19 by the blower 17.
  • the hot air duct 20 is provided with a system for generating a thermal energy for heating the air.
  • the hot air duct 20 has a mixing tube 24, for mixing a gas sprayed from a gas nozzle 22 with a primary air.
  • the gas nozzle 22 is fitted to one side of a valve 30 for controlling gas supply.
  • the reference numeral 23 denotes a gas supply tube 23 connected to the valve 30.
  • the gas nozzle 22 at one side of the valve 30 is fitted to an inlet to the mixing tube 24 opposite thereto.
  • the gas sprayed from the gas nozzle 22 and external air introduced through the inlet of the mixing tube 24, i.e., the primary air, are mixed inside of the mixing tube 24.
  • the air to the air supply duct 12 is heated to a relatively high temperature by heat supplied from the gas burned as the gas passes through the hot air duct 20.
  • the hot air is introduced to the inside of the drying chamber 5 in the drum 1 through the air supply duct 12. After absorbing moisture contained in the laundry in the drying chamber 5. the hot air escapes the drying chamber 5 owing to a suction power of the blower 17.
  • the air is involved in filtering dust and lint as the hot air passes through the lint filter fitted to an inside of the lint duct 15.
  • the laundry inside of the drum 1 of a metal such as stainless steel, repeats a process of being lifted and dropped by the baffles 6 as the laundry rotates along with the drum 1.
  • fittings to the laundry such as buttons, zippers, clips, collide with a surface of the metallic drum when the laundry drops inside of the drum 1, to generate noise.
  • US 5,263,343 describes a washing machine with a water container body provided with insulative members.
  • An object of the present invention designed for solving the foregoing various problems, lies on an effective insulation of vibratory noise occurred as fittings to laundry, or metallic foreign matters, collide with an inside surface of the drum in a home appliance during the drum rotates.
  • the vibration reductive sound insulating member may be fitted around an outside circumferential surface of the drum.
  • the outside circumferential surface of the drum has recesses for fitting the vibration reductive sound insulating members therein.
  • a plurality of the vibration reductive sound insulating members may be fitted to the outside surface of the drum in a length direction of the drum.
  • the outside circumferential surface of the drum has a plurality of recesses for fitting the vibration reductive sound insulating members therein in a length direction of the drum.
  • the vibration reductive sound insulating member is formed of an elastic material, preferably butyl rubber.
  • the vibration reductive sound insulating member is attached to the outside surface of the drum, and the vibration reductive sound insulating member preferably has a form of sheet.
  • the vibration reductive sound insulating member may be a butyl rubber layer added with a sound absorbing material layer, such as a polyester layer.
  • the drum device in a home appliance of the present invention can insulate the vibratory sound caused by collision of fittings to laundry and the drum when the drum is rotated, thereby securing silence of the home appliance, to enhance a product reliability.
  • the drum 30 is cylindrical, to form a chamber 31 therein. If the drum 30 of the present invention is employed in a dryer or a drum type washing machine, the chamber 31 has laundry introduced thereto, for drying or washing the laundry.
  • drum belt 34 wound at one side of the groove 32 for driving the drum 30.
  • the groove 32 around the outside surface of the drum has an annular form along a circumference
  • the groove may be helical along the outside circumferential surface of the drum.
  • vibration reductive sound insulating member in the groove 32 for insulating vibratory sound caused by collision occurred inside of the metallic drum 30.
  • the vibration reductive sound insulating member serves to insulate vibratory sound occurred when a hard object collide with the metallic drum 30, effectively.
  • the vibration reductive sound insulating member is preferably formed of an elastic material, for example, rubber, or leather, and most preferably, butyl rubber, which has a good processibility, is easy to composite with other material, has an excellent heat resistance, an excellent fire retardancy, and strong vibration reductive capability.
  • the butyl rubber is attached around the outside circumferential surface of the drum 30 along the groove 32, to do which an adhesive is coated on one side of the butyl rubber 40.
  • the vibration reductive sound insulating member may be a composite layer of a butyl rubber layer and a sound absorbing material layer, such as a polyester sheet.
  • butyl rubber 40 is attached to a location where the fittings to the laundry collide the most frequently. Though the location may be found by experiment, in general the location is in the vicinity of a middle part of the drum 10.
  • the butyl rubber 40 has a thickness suitable to the groove 32 such that the butyl rubber 40 is not projected beyond the outside surface of the drum 30, for not affecting rotation of the drum 30.
  • FIG. 2 illustrates two wound lines of butyl rubber 40.
  • a number of the wound lines of the butyl rubber 40 may differ depending on design conditions.
  • FIG. 3 there is a chamber 131 in a cylindrical drum 130.
  • the chamber 131 has laundry introduced thereto for, as an example, washing or drying.
  • the drum 130 has a drum belt 134 wound around an outside surface of the drum 130 for transmission of power for rotating the drum 130.
  • the drum belt 134 is wound in a belt groove 132 formed along an outside circumferential surface of the drum 130.
  • butyl rubbers 140 vibration reductive sound insulating members, attached to the outside surface of the drum 130.
  • the embodiment has a plurality of butyl rubbers 140 attached on both sides of the belt groove 132 in parallel in a length direction of the drum 130.
  • Recesses 232 may be formed in the outside surface of the drum 130 for attachment of the butyl rubbers 140.
  • the present invention has butyl rubber 40, a vibration reductive sound insulating member, attached to the outside surface of the drum 30, for insulating vibratory sound occurred during rotation of the drum 30.
  • the drum 30 when the drum 30 is rotated in a state the laundry is introduced into the chamber 31 of a dryer, or a washing machine, the laundry repeats a process of being dropped after lifted to an upper part of the chamber 31.
  • fittings such as buttons, zippers, and clips of hard materials, such as metal or plastic collide with the inside surface of the drum 30.
  • the drum 30 is formed of a metal, such as stainless steel, and has a vacant inside, vibratory sound is generated when the fittings collide with the drum 30.
  • vibratory sound can be insulated effectively by the vibration reductive sound insulating member attached to the outside of the drum 30.
  • the butyl rubber 40 is particularly favorable for the dryer, and the like that has a danger of fire, as the butyl rubber 40 is fire retardant.
  • the drum device in a home appliance of the present invention has vibration reductive sound insulating member fitted to an outside surface of a drum for insulating vibratory sound caused by collision of fittings, such as buttons, and the like, with an inside surface of the drum as the laundry is dropped when the drum is rotated, thereby improving silence of a drum type washing machine, or a home appliance, to enhance a product reliability of consumer by one stage higher.
  • the present invention is very useful for industries.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (9)

  1. Dispositif à tambour pour un appareil électroménager comprenant : un tambour cylindrique (30; 130) fixé à rotation à une extrémité avant et une extrémité arrière pour former une chambre (31; 131) pour exécuter le travail, caractérisé en ce que ledit tambour comprend en outre un élément d'isolation sonore réduisant les vibrations (40; 140) fixé au tambour (30; 130) pour isoler les sons de vibrations provoqués par la collision d'objets circulant à l'intérieur de ladite chambre (31; 131) pendant que le tambour tourne.
  2. Dispositif à tambour selon la revendication 1, dans lequel l'élément d'isolation sonore réduisant les vibrations (40; 140) est fixé autour d'une surface circonférentielle extérieure (32) du tambour.
  3. Dispositif à tambour selon la revendication 2, dans lequel la surface circonférentielle extérieure du tambour (30; 130) possède des cavités (32) pour fixer l'élément d'isolation sonore réduisant les vibrations (40; 140) à l'intérieur.
  4. Dispositif à tambour selon la revendication 1, dans lequel une pluralité d'éléments d'isolation sonore réduisant les vibrations (140) sont fixés sur la surface extérieure du tambour (130) dans une direction longitudinale du tambour cylindrique (130).
  5. Dispositif à tambour selon la revendication 4, dans lequel la surface circonférentielle extérieure du tambour possède une pluralité de cavités (232) pour fixer les éléments d'isolation sonore réduisant les vibrations (140) dans une direction longitudinale du tambour cylindrique (130).
  6. Dispositif à tambour selon une des revendications 1 à 4, dans lequel l'élément d'isolation sonore réduisant les vibrations (40; 140) est constitué d'une matière élastique.
  7. Dispositif à tambour selon la revendication 6, dans lequel l'élément d'isolation sonore réduisant les vibrations (40; 140) a une forme de feuille.
  8. Dispositif à tambour selon la revendication 4, dans lequel l'élément d'isolation sonore réduisant les vibrations (40; 140) est constitué de caoutchouc butyle.
  9. Dispositif à tambour selon la revendication 1, dans lequel l'élément d'isolation sonore réduisant les vibrations (40; 140) est une couche composite faite d'une couche de caoutchouc butyle et d'une couche de polyester.
EP02749421A 2001-07-19 2002-07-19 Tambour pour appareil electromenager Revoked EP1407071B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR2001043485 2001-07-19
KR1020010043485A KR100593635B1 (ko) 2001-07-19 2001-07-19 가전기기용 드럼장치
PCT/KR2002/001361 WO2003008696A1 (fr) 2001-07-19 2002-07-19 Tambour pour appareil electromenager

Publications (2)

Publication Number Publication Date
EP1407071A1 EP1407071A1 (fr) 2004-04-14
EP1407071B1 true EP1407071B1 (fr) 2006-11-15

Family

ID=19712299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02749421A Revoked EP1407071B1 (fr) 2001-07-19 2002-07-19 Tambour pour appareil electromenager

Country Status (8)

Country Link
US (1) US20030167804A1 (fr)
EP (1) EP1407071B1 (fr)
JP (1) JP3902770B2 (fr)
KR (1) KR100593635B1 (fr)
CN (1) CN1228496C (fr)
AU (1) AU2002319943B2 (fr)
DE (1) DE60216100T2 (fr)
WO (1) WO2003008696A1 (fr)

Families Citing this family (21)

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US8365437B2 (en) 2003-06-05 2013-02-05 Lg Electronics Inc. Drum for washer and dryer
KR20050057808A (ko) * 2003-12-11 2005-06-16 엘지전자 주식회사 건조기의 드럼장치
EP1541741B1 (fr) * 2003-12-09 2016-08-10 LG Electronics, Inc. Sèche-linge.
KR101047232B1 (ko) * 2003-12-09 2011-07-06 엘지전자 주식회사 가전 기기용 드럼장치
US7740825B2 (en) * 2004-03-31 2010-06-22 Stella Chemifa Corporation Method for forming a carbon nanotube aggregate
KR101093878B1 (ko) * 2004-06-05 2011-12-13 엘지전자 주식회사 건조기의 드럼 장치
ES2306605B1 (es) * 2007-04-04 2009-06-17 Bsh Electrodomesticos España, S.A. Tambor de una maquina de tratado cuidadoso de la ropa.
DE102008006511A1 (de) * 2008-01-29 2009-07-30 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
DE102008009141A1 (de) * 2008-02-14 2009-08-27 BSH Bosch und Siemens Hausgeräte GmbH Wäschetrommel für eine Wäschebehandlungsmaschine
DE102008044123A1 (de) * 2008-11-27 2010-06-02 BSH Bosch und Siemens Hausgeräte GmbH Isolierungslage und Wäschetrommel für ein Trocknungsgerät
KR101537610B1 (ko) * 2009-02-19 2015-07-17 엘지전자 주식회사 건조기
EP2519683A1 (fr) * 2009-12-31 2012-11-07 Arçelik Anonim Sirketi Sèche-linge comprenant une unité de base en matière plastique intégrée
US20120291302A1 (en) * 2011-05-16 2012-11-22 Bsh Home Appliances Corporation Noise-reducing laundry drum for a household appliance
US8864634B2 (en) * 2011-05-26 2014-10-21 Innovative Xercise Solutions, Llc Weight-lifting bar
WO2015195305A1 (fr) * 2014-06-18 2015-12-23 Owens Corning Intellectual Capital Système d'amortissement des vibrations
US10152956B1 (en) * 2016-01-01 2018-12-11 Kevin Joseph McIntyre Apparatus for sound volume reduction
DE102018115675A1 (de) * 2018-06-28 2020-01-02 Miele & Cie. Kg Wäschebehandlungsmaschine, umfassend einen Laugenbehälter oder eine Trommel
US10738410B2 (en) * 2018-08-03 2020-08-11 Haier Us Appliance Solutions, Inc. Rotating component of a laundry appliance with a helical seam
KR20210003379A (ko) * 2019-07-02 2021-01-12 삼성전자주식회사 의류 건조기 및 의류 건조기용 완충 링의 제조방법
DE102021125796A1 (de) 2021-10-05 2023-04-06 Miele & Cie. Kg Trommel für einen Wäschetrockner und Wäschetrockner
CN114836955A (zh) * 2022-05-31 2022-08-02 海信（山东）冰箱有限公司 一种衣物处理机

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US3913828A (en) * 1971-09-02 1975-10-21 Avco Corp Reinforcing ultra-centrifuge rotors
JPH0673935B2 (ja) * 1988-04-01 1994-09-21 ニチアス株式会社 制振材および制振材を用いた防音構造体
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Also Published As

Publication number Publication date
KR20030008649A (ko) 2003-01-29
US20030167804A1 (en) 2003-09-11
AU2002319943B2 (en) 2005-09-22
JP2004521717A (ja) 2004-07-22
DE60216100T2 (de) 2007-06-28
DE60216100D1 (de) 2006-12-28
WO2003008696A1 (fr) 2003-01-30
CN1228496C (zh) 2005-11-23
KR100593635B1 (ko) 2006-06-28
CN1464929A (zh) 2003-12-31
EP1407071A1 (fr) 2004-04-14
JP3902770B2 (ja) 2007-04-11

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