EP1469117A2 - Dispositif pour réduire les vibrations dans une machine à laver - Google Patents

Dispositif pour réduire les vibrations dans une machine à laver Download PDF

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Publication number
EP1469117A2
EP1469117A2 EP04252285A EP04252285A EP1469117A2 EP 1469117 A2 EP1469117 A2 EP 1469117A2 EP 04252285 A EP04252285 A EP 04252285A EP 04252285 A EP04252285 A EP 04252285A EP 1469117 A2 EP1469117 A2 EP 1469117A2
Authority
EP
European Patent Office
Prior art keywords
washing machine
copolymer
block
vibration
cabinet
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
EP04252285A
Other languages
German (de)
English (en)
Other versions
EP1469117A3 (fr
EP1469117B1 (fr
Inventor
Myong Deok Kim
Young Soo Kim
Jae Kyum Kim
Ho Chul Kwon
Kwang Soo Kim
Jong A. Park
Deug Hee Lee
Seung Bong Choi
Byung Hwan Ahn
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
Priority claimed from KR1020030024734A external-priority patent/KR20040090783A/ko
Priority claimed from KR1020030060270A external-priority patent/KR20050021860A/ko
Priority claimed from KR1020030060269A external-priority patent/KR20050022660A/ko
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of EP1469117A2 publication Critical patent/EP1469117A2/fr
Publication of EP1469117A3 publication Critical patent/EP1469117A3/fr
Application granted granted Critical
Publication of EP1469117B1 publication Critical patent/EP1469117B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs
    • 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
    • D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations

Definitions

  • the present invention relates to members for washing machines for reducing vibration. More particularly a washing machine with reduced vibration during operation.
  • the washing machine removes contaminants from laundry by applying energy such by impact using, for example, a pulsator, a rotating drum or an agitator.
  • the drum washing machine rotates a drum to drop the laundry to create an impact.
  • the pulsator, or the agitator washing machine creates an impact by means of a rotating pulsator or agitator connected to a shaft vertically mounted in a washing tub.
  • washing machines wash laundry by impacting the laundry mostly with mechanical means. This causes in general vibration. To address this, washing machines are provided with different vibration attenuation means.
  • a cabinet 3 a body of the washing machine, is provided with a front portion 34, side portions 32, an upper cover 38, and a lower base 36.
  • the front portion 34 of the cabinet has a door 4 mounted to be opened/closed, and the base 36 has legs 5 for supporting the washing machine on a floor on which the washing machine is installed.
  • the cabinet 3 has a tub 7 for holding washing water, and a drum 9 rotatably mounted therein for laundry.
  • the drum 9 has a motor 11 connected to it for generating a driving force to rotate the drum 9.
  • the drum 9 Upon putting the washing machine into operation, the drum 9 rotates at a high speed, according to which vibration is occurs. Particularly, since the drum 9 rotates at a high speed in a spinning cycle, the vibration is pronounced. According to this, different kinds of means are provided to the washing machine for reducing the vibration produced or to attenuate the generated vibration.
  • the material or thickness of the side portions 32 and/or base 36 of the cabinet 3 are chosen, or recesses 32a can be formed in the side portions 32 of the cabinet 3.
  • a leg pad 17 of a vibration absorbing material can be fitted to the leg 5.
  • An embodiment of the present invention is directed to a washing machine that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
  • An object of embodiments of the present invention is to provide effective attenuation of vibration in a washing machine.
  • Another object of embodiments of the present invention is to provide effective attenuation of vibration of a washing machine in which vibration attenuation is effective over a broad range of rotation speeds of the washing machine.
  • the washing machine may include a cabinet forming an outside shape of the washing machine, legs fitted to a bottom of the cabinet for supporting the cabinet, and leg pads joined to an underside of the legs respectively for attenuating vibration occurring when the washing machine is operated, wherein the leg pad is formed of block copolymer of hard blocks and soft blocks.
  • the leg pad includes a first member in contact with a floor having the washing machine installed thereon, and a second member in contact with the first member, wherein, preferably, at least one of the first member and the second member is the block copolymer of hard blocks and soft blocks.
  • the hard block is a material which has required mechanical properties
  • the soft block is a material which has vibration attenuation characteristics.
  • the soft block has a glass transition temperature of room temperature, and more preferably, -30°C ⁇ 30°C.
  • the leg pad of the washing machine installed on a slippery floor has a Shore hardness of approx. 80, and preferably the leg pad of the washing machine installed on a non-slippery floor has a Shore hardness of approx. 30.
  • the hard block is polystyrene
  • the soft block is polyisoprene
  • the soft block is vinyl-polyisoprene
  • the block copolymer is preferably blended with at least one selected from olefin based thermo plastic resin, ethylene- ⁇ olefin copolymer, ethylene-vinylacetate copolymer, ethylene-ethylacrylrate copolymer, styrene-butadiene-styrene copolymer, and styrene-isoprene-styrene copolymer.
  • a washing machine including a cabinet forming an outside shape of the washing machine, a tub in the cabinet for holding washing water, a drum rotatably mounted in the tub, dampers fitted between a base of the cabinet and the tub for reducing transmission of vibration from the drum, wherein the damper is coupled to the cabinet, with a first damping member in contact with the damper, and a second damping member in contact with the first damping member placed inbetween, and at least one of the first damping member, and the second damping member is block copolymer of hard blocks and soft blocks.
  • the hard block is a material which has required mechanical properties
  • the soft block is a material which has vibration attenuation characteristics
  • FIGS. 4 and 5 illustrate graphs each showing principle and effect of a washing machine with reduced vibration in accordance with a preferred embodiment of the present invention. That is, vibrations of different washing machines (hereafter called “samples”), in which various parameters generally known to be effective for vibration are varied, are measured in spinning processes in which vibration can cause the most serious problem.
  • samples vibrations of different washing machines
  • EQP/2 vibration measuring apparatus
  • FIG. 4 illustrates the test result the a right side portion of the cabinet
  • FIG. 5 illustrates a test result at a left side portion of the cabinet.
  • A(Max) denotes a greatest vibration measured at the upper comer
  • A(Normal) denotes a normal vibration measured at the upper comer
  • B(Max) denotes a greatest vibration measured at the central portion
  • B(Normal) denotes a normal vibration measured at the central portion.
  • Sample 1 denotes a drum washing machine in which a 0.15mm bead depth is added to a general bead depth formed at the side of the cabinet, and the leg pad is formed of butyl rubber as in the related art.
  • Sample 1a denotes the same washing machine as sample 1, except that the material of the leg pad is different.
  • Sample 2 denotes a drum washing machine in which bead depth is not changed, and material of the leg pad is also the butyl rubber.
  • Sample 2a denotes a washing machine the same as sample 2, except that the material of the leg pad is different.
  • leg pad is very effective for attenuating vibration.
  • the leg pad is designed properly. Therefore, it is preferable that, first of all, the most suitable leg pad, particularly, the most suitable material of the leg pad is used for attenuation of the vibration, and the other vibration attenuation parameters are taken into consideration. According to this, the inventor further studied which the leg pad would be most suitable for vibration attenuation.
  • the leg pad has an excellent vibration attenuating characteristic.
  • the leg pad it is required necessary for it to meet other conditions.
  • its mechanical properties such as hardness, its anti-slip property for preventing the washing machine from moving from an installed place, its formability for ease of fabrication, and the like have to be considered.
  • resonance can occur at a certain range of rotation speed of the washing machine, to cause the washing machine to 'walk' across the floor. If friction with the floor is not adequate, it is liable that the washing machine will move too easily across the floor.
  • leg pad metal, plastic, isobutylene-isoprene rubber, or the like is used, each material has advantages, and disadvantages. Even though metal or plastic, with a comparatively high hardness, has a resonance range outside of the typical rotation speed of the washing machine, it is liable that the leg pad of metal or plastic causes walking of washing machine in almost all ranges of the rotation speed, regardless of the rotation speed. Moreover, the leg pad of metal or plastic is liable to cause slipping of the washing machine because the metal or plastic has low frictional engagement with the floor.
  • the butyl rubber since the butyl rubber has a resonance range coincident with a low rotation speed range of the washing machine, it is required that the washing machine is better to pass this resonance range quickly. Also, the leg pad of butyl rubber is liable to cause walking of the washing machine in the low rotation speed range, even though the walking is comparatively rare at high rotation speeds.
  • the leg pad is preferably formed of a copolymer in which the hard blocks HS and the soft blocks SS make a net form. Because the use of the leg pad of the copolymer of the hard blocks HS and the soft blocks SS enables selection of a material that meets required mechanical properties, such as hardness, i.e. the hard blocks, and a material that meets required vibration attenuation characteristic, i.e the soft blocks. According to this, the leg pad can be designed comparatively easily to meet the vibration attenuation characteristics while other conditions are also met.
  • a material that has a glass transition is used as the block copolymer, particularly, the soft block.
  • a material of which the glass transition temperature is close to a temperature at which the washing machine is used is better still. While thermal movement in chain forms of polymers in the net becomes violent at higher temperatures than the glass transition temperature, creating a rubbery state, the thermal movement is suppressed at temperatures below the glass transition temperature, and it then becomes glassy due to reduction of its own volume, and has poor vibration attenuation qualities.
  • the leg pad Since amorphous polymers, such as rubber, exhibit the glass transition, it is preferable that rubber is selected as the leg pad.
  • the butyl rubber used presently also exhibits the glass transition.
  • the leg pad is required to have other properties which the butyl rubber, in the form of a copolymer prepared by copolymerizing a small amount of isoprene with isobutylen, cannot meet.
  • the butyl rubber has a glass transition temperature in the range of -40°C ⁇ -60°C, which is substantially lower than the temperature of use of the washing machine.
  • the leg pad of the present invention is formed of a block copolymer of hard blocks and soft blocks, wherein the hard blocks are selected with mechanical considerations in mind, and the soft blocks are selected with vibration attenuation in mind.
  • a material is selected as the soft block, of which the glass transition temperature is in the vicinity of the temperature of use of the washing machine.
  • a material is selected for the hard blocks in view of requirements of mechanical properties, such as hardness.
  • the hardness of the leg pad is high.
  • the Shore hardness is approx. 80.
  • the hardness is low, in general, approx. 30 in Shore A hardness.
  • the hard block can be polystyrene
  • the soft block can be polyisoprene, particularly, vinyl-polyisoprene.
  • the block copolymer may be used solely, at least one selected from olefin based thermo plastic resin, ethylene- ⁇ olefin copolymer, ethylene-vinylacetate copolymer, ethylene-ethylacrylrate copolymer, styrene-butadiene-styrene copolymer, and styrene-isoprene-styrene copolymer may be blended with the block copolymer.
  • olefin based thermo plastic resin ethylene- ⁇ olefin copolymer, ethylene-vinylacetate copolymer, ethylene-ethylacrylrate copolymer, styrene-butadiene-styrene copolymer, and styrene-isoprene-styrene copolymer may be blended with the block copolymer.
  • additives such as a cross-linker, filler, and/or softener may be introduced into a base material of the block copolymer, that is known to a person skilled in the field of art, of which detailed description will be omitted.
  • the leg pad of the block copolymer of hard block and soft block enables fabrication of a leg pad that satisfies the vibration attenuation characteristic and other required properties very well.
  • the material used in the test is Kuraray Hybrar.
  • the Hybrar a block copolymer of polystyrene and polyisoprene, has a glass transition temperature in the vicinity of room temperature of approx. -19°C ⁇ -8°C.
  • FIG. 7 it is verified that the leg pad of the Hybrar has very good damping properties in the vicinity of room temperature.
  • the material of the leg pad in the sample 1a and the sample 2a is Hybrar.
  • the material suitable for the leg pad is not limited to Hybrar, and any material that satisfies above conditions can be used.
  • the leg pad has, not only an excellent vibration attenuation characteristic, but also excellent formability and workability for the sake of the production costs of the washing machine.
  • Hybrar has a better anti-slip characteristic than butyl rubber, and particularly, maintains good friction even in a watery environment compared to other rubbers.
  • the Hybrar can be used as a thermoplastic resin that can be injection molded or extrusion molded, or a thermosetting resin that can be pressed, the Hybrar also has the advantage of good formability. However, if it is intended to use the Hybrar as the thermosetting resin, a separate cross-linker is required.
  • the leg 5 includes a cylindrical body 52, and a hexagonal head 54 at a bottom end of the body 52. It is preferable that the body 52 has an external thread for easy height adjustment. The head 54 is used for easy turning of the body 52 for adjustment of the height.
  • the leg pad 17 is fitted to a bottom end of the leg 5. Though the leg pad 17 may be fitted to the head 54 of the leg 5 directly, it is preferable that an enlarged base portion 56 may be further formed in a lower portion of the head 54 forming a fitting area for easy fitting.
  • the leg 5 and the leg pad 17 may be joined by insert molding, bonding, or other methods.
  • the leg 5 and the leg pad 17 may be joined with an adhesive.
  • the leg 5 and the leg pad 17 may be joined by insert molding.
  • a recess 17a having part of a lower portion of the leg pad 17 cut away therefrom in a circumferential direction may be formed, and the leg 5 and the leg pad 17 may be joined with an annular resilient clip 19 that embraces the enlarged portion 56 of the leg and the recess 17a in the leg pad 17.
  • leg pad formed of one material i.e., the block copolymer
  • the leg pad is formed of a first member in contact with a floor and a second member in contact with the first member.
  • One of the first and second members can be formed of block copolymer, and the other one formed in other material, such as butyl rubber. Because the material of the leg pad, i.e., the block copolymer for the hard blocks, and the soft blocks may undergo plastic deformation over time, degradation vibration attenuation can result. Particularly, the vibration attenuation effect can become poor in the low temperature range.
  • the leg pad 17 includes a first member 17a in contact with a floor having the washing machine installed thereon, and a second member 17b fitted to the first member 17a, wherein it is preferable that one of the first member 17a and the second member 17b is formed of butyl rubber, and the other one is formed of block copolymer.
  • the cross hatching denote that the material is block copolymer
  • the dots denotes that the material is butyl rubber.
  • the first member 17a may be formed of butyl rubber
  • the second member 17b may be formed of block copolymer
  • the first member 17a can be formed of block copolymer
  • the second member 17b can be formed of butyl rubber. Because the block copolymer has better contact with the floor, it is favorable that the first member 17a is formed of the block copolymer.
  • the first member 17a may have a projection 170 having the second member 17b passing through it. Or, as shown in FIGS. 15A and 15B, the first member 17a may have a plurality of projections 170 having the second member 17b passing through them.
  • a third member 17c of the same material as the first member 17a may be fitted to top of the second member 17b.
  • the first member 17a, the second member 17b, and the third member 17c may be joined by bonding, or double injection molding, and the leg pad 17 and the leg may be joined by bonding, insert molding, or mechanical joining, as described before.
  • the principle of the present invention is applicable not only to the leg, but also to other components, used in the washing machine and the like as a vibration attenuator. Particularly, it is preferable that the principle of the present invention is applied to the damper fitted between the base of the cabinet and the tub for preventing vibration of the washing machine and the like being transmitted to the cabinet.
  • the damping member 100 may be formed of one material solely, i.e., the block copolymer, as a result of study of the inventor, it is found out that it is possible to form the damping member 100 of the present invention of more than two materials.
  • one is formed of block copolymer, and the other one is formed of other material, such as butyl rubber.
  • the block copolymer of the hard blocks, and the soft blocks may undergo plastic deformation after a certain time period, resulting in poor vibration attenuation. Particularly, the vibration attenuation effect can become poor in a low temperature range.
  • cross hatching denotes that the material is block copolymer
  • dot marks on the section denote that the material is butyl rubber.
  • the damper 15 is fixed to the base 36 with a first damping member 110 in contact with the damper 15.
  • a second damping member 120 is in contact with the first damping member 110 placed inbetween, wherein one of the first damping member 110 and the second damping member 120 is a block copolymer of hard blocks and soft blocks.
  • the damper 15 has a hollow coupling portion 15a at one end (the portion nearest to the base of cabinet).
  • the coupling portion 15a has a cylindrical first damping member 110 fitted therein, and a cylindrical second damping member 120 is fitted in the hollow of the first damping member 110.
  • the coupling portion 15a of the damper 15, the first damping member 110, and the second damping member 120 are positioned in the opening of the bracket 16, and, in this arrangement, a bolt 16a is passed through the bracket 16, and the second damping member 120, so that the damper 15 is fitted between the tub and the cabinet.
  • the first damping member 110 may be formed of butyl rubber, and the second damping member 120 formed of block copolymer. However, as shown in FIG 19, it is preferable that the first damping member 110 is formed of the block copolymer, and the second damping member 120 is formed of butyl rubber. This is because it is favorable in view of vibration attenuation that the first damping member 110 that comes into contact with the damper 15 at first is formed of the block copolymer.
  • a third damping member 130 formed of the same material as the material of the first damping member 110, is fitted on an inside of the second damping member 120.
  • the third damping member 130 is fitted on an outside of the first damping member 110.
  • first damping member 110 the second damping member 120, and the third damping member 130 being joined by bonding or double injection molding
  • the components may alternatively be joined by other methods.
  • the present invention is not limited to this. That is, the present invention is applicable to the pulsator washing machine, and the agitator washing machine, too. Moreover, the present invention is applicable, not only to a leg joined to the cabinet, but also to other components that are used for attenuation of vibration in the washing machine.
  • the method for attenuating vibration of a washing machine, and a washing machine thereof has the following advantages.
  • vibration can be attenuated effectively by selecting the leg pads, properly. That is, vibration of the washing machine can be reduced effectively while changes in design, and cabinet material, thickness, and bead depth that raise production costs increases are minimized. That is, by proper selection of the damping member of the damper, and the leg pad of which design and effect verification are comparatively easy, the vibration can be attenuated very effectively.
  • the present invention permits selection of a leg pad which meets, not only the vibration attenuation characteristic, but also other necessary properties, such as hardness, and anti-slip characteristics.
  • the invention can make a washing machine design effective in vibration attenuation over all ranges of rotation speed of the washing machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Vibration Prevention Devices (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Centrifugal Separators (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
EP04252285A 2003-04-18 2004-04-19 Dispositif pour réduire les vibrations dans une machine à laver Expired - Lifetime EP1469117B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR2003024734 2003-04-18
KR1020030024734A KR20040090783A (ko) 2003-04-18 2003-04-18 진동 저감 세탁기
KR1020030060270A KR20050021860A (ko) 2003-08-29 2003-08-29 진동 저감 세탁기
KR2003060270 2003-08-29
KR2003060269 2003-08-29
KR1020030060269A KR20050022660A (ko) 2003-08-29 2003-08-29 진동 저감 세탁기

Publications (3)

Publication Number Publication Date
EP1469117A2 true EP1469117A2 (fr) 2004-10-20
EP1469117A3 EP1469117A3 (fr) 2006-09-13
EP1469117B1 EP1469117B1 (fr) 2010-04-14

Family

ID=32912856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04252285A Expired - Lifetime EP1469117B1 (fr) 2003-04-18 2004-04-19 Dispositif pour réduire les vibrations dans une machine à laver

Country Status (7)

Country Link
US (1) US20040206134A1 (fr)
EP (1) EP1469117B1 (fr)
JP (1) JP2004313798A (fr)
CN (1) CN100334288C (fr)
AT (1) ATE464419T1 (fr)
AU (1) AU2004201444B2 (fr)
DE (1) DE602004026501D1 (fr)

Cited By (4)

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EP1887124A1 (fr) * 2006-08-07 2008-02-13 Electrolux Home Products Corporation N.V. Pied de stabilisation de sols pour un appareil ménager
WO2011134752A1 (fr) * 2010-04-28 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Carter pour appareil ménager et procédé pour sa stabilisation
EP2433917A1 (fr) * 2010-09-28 2012-03-28 Electrolux Home Products Corporation N.V. Pièce de composant d'un appareil domestique, en particulier d'un groupe de lavage d'appareil domestique, fabriqué à partir de matériau en béton polymérique
FR3033186A1 (fr) * 2015-02-26 2016-09-02 Etablissements Mottez & Cie Dalle anti-vibration pour appareil vibrant

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KR20050038118A (ko) * 2003-10-21 2005-04-27 삼성전자주식회사 세탁기
ATE458850T1 (de) * 2006-10-31 2010-03-15 Electrolux Home Prod Corp Haushaltsgerät
WO2010066653A1 (fr) * 2008-12-12 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Appareil électro-ménager présentant une paroi dotée de parties en relief
DE102009054201A1 (de) * 2009-11-21 2011-05-26 Vorwerk & Co. Interholding Gmbh Standfuß, insbesondere für eine Tisch-Küchenmaschine
US20110247374A1 (en) * 2010-04-13 2011-10-13 Whirlpool Corporation Laundry treating appliance with force damping feet
US20130313385A1 (en) * 2012-05-22 2013-11-28 General Electric Company Leveling assembly for an appliance
JP6111426B2 (ja) * 2013-08-27 2017-04-12 パナソニックＩｐマネジメント株式会社 ドラム式洗濯機
CN105332247A (zh) * 2014-06-27 2016-02-17 无锡小天鹅股份有限公司 洗衣机
WO2015196859A1 (fr) * 2014-06-27 2015-12-30 无锡小天鹅股份有限公司 Machine à laver
CN106436200A (zh) * 2016-10-08 2017-02-22 珠海格力电器股份有限公司 洗衣机
CN106319857B (zh) * 2016-10-26 2020-10-13 珠海格力电器股份有限公司 滚筒洗衣机
CN111188161B (zh) * 2018-11-15 2023-04-14 青岛海尔洗衣机有限公司 一种减振结构及洗衣机

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EP1887124A1 (fr) * 2006-08-07 2008-02-13 Electrolux Home Products Corporation N.V. Pied de stabilisation de sols pour un appareil ménager
WO2008017387A1 (fr) * 2006-08-07 2008-02-14 Electrolux Home Products Corporation N.V. Pied de stabilisation de plancher pour un appareil ménager
WO2011134752A1 (fr) * 2010-04-28 2011-11-03 BSH Bosch und Siemens Hausgeräte GmbH Carter pour appareil ménager et procédé pour sa stabilisation
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FR3033186A1 (fr) * 2015-02-26 2016-09-02 Etablissements Mottez & Cie Dalle anti-vibration pour appareil vibrant

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DE602004026501D1 (de) 2010-05-27
EP1469117A3 (fr) 2006-09-13
CN100334288C (zh) 2007-08-29
AU2004201444A1 (en) 2004-11-11
US20040206134A1 (en) 2004-10-21
JP2004313798A (ja) 2004-11-11
AU2004201444B2 (en) 2007-04-05
EP1469117B1 (fr) 2010-04-14
CN1537998A (zh) 2004-10-20
ATE464419T1 (de) 2010-04-15

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