EP1526212A2 - Machines à laver - Google Patents

Machines à laver Download PDF

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Publication number
EP1526212A2
EP1526212A2 EP04253248A EP04253248A EP1526212A2 EP 1526212 A2 EP1526212 A2 EP 1526212A2 EP 04253248 A EP04253248 A EP 04253248A EP 04253248 A EP04253248 A EP 04253248A EP 1526212 A2 EP1526212 A2 EP 1526212A2
Authority
EP
European Patent Office
Prior art keywords
vibration absorbing
absorbing part
washing machine
vibration
parts
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Withdrawn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
EP04253248A
Other languages
German (de)
English (en)
Other versions
EP1526212A3 (fr
Inventor
Chang Min Song
Doo Young Ryu
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 EP1526212A2 publication Critical patent/EP1526212A2/fr
Publication of EP1526212A3 publication Critical patent/EP1526212A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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 
    • D06F39/001—Arrangements for transporting, moving, or setting washing machines; Protective arrangements for use during transport

Definitions

  • the present invention relates, in general, to washing machines and, also to legs provided on a lower portion of a washing machine to contact a support surface, to support a washing machine and absorb impact when the washing machine vibrates.
  • a machine driven by fossil fuels or electricity sets in motion internal components thereof using power generated from a drive unit, such as an engine or a motor.
  • a drive unit such as an engine or a motor.
  • vibrations of various frequencies are generated, because friction occurs among the internal components of the drive unit when the drive unit rotates.
  • a vibration frequency generated during an operation of the machine is called an operation frequency.
  • various machines have respective characteristic frequencies based on physical properties of internal components thereof. There is a strong correlation between the operation frequency and the characteristic frequency and noise generated in the machine. Particularly, when the characteristic frequency is equal to the operation frequency, resonance occurs. When resonance occurs, vibration is remarkably increased. Therefore, it is desirable to prevent the resonance from occurring.
  • legs thereof are made of a material having a low characteristic frequency, such as soft rubber, which absorbs a vibration of a high frequency.
  • the conventional washing machines have a problem in that a vibration absorbing capacity of the soft rubber is reduced, because there is little difference between a characteristic frequency of the soft rubber and an operation frequency when a frequency of a vibration which is transmitted from a cabinet to the leg, is low.
  • the conventional washing machines have another problem in that plastic deformation of the soft rubber may occur due to the weight of the washing machine, when the soft rubber has been used for a lengthy period of time.
  • Conventional washing machines have a further problem in that the soft rubber may undesirably weaken, because the soft rubber has a low resistance to heat or chemicals.
  • the present invention provides washing machine legs arranged to efficiently absorb vibration even when a wide range of operation vibrations are generated.
  • the present invention further provides washing machine legs which are resistant to plastical deformation due to a load of the washing machine or from weakening due to heat or chemicals.
  • the present invention yet further provides washing machine legs that can be produced using simple manufacturing and assembling processes, therefore increasing productivity.
  • a washing machine including: a cabinet; and at least one leg to support the cabinet on a support surface, the at least one leg comprising: a first vibration absorbing part to contact, on a bottom surface thereof, with the support surface, the first vibration absorbing part having elasticity to have a higher contracting strain as a weight applied thereto increases; and a second vibration absorbing part of which a bottom surface is placed higher than the bottom surface of the first vibration absorbing part by a predetermined height, thus contacting or being spaced apart from the support surface according to the contracting strain of the first vibration absorbing part.
  • a support leg comprising: a fastening unit fastening the leg to a cabinet; a head formed at an end of said fastening unit; and a vibration absorbing unit surrounding a portion of said head, wherein said absorbing unit comprises first and second vibration absorbing parts separated by grooves.
  • the first and second vibration absorbing parts may have different characteristic frequencies.
  • the characteristic frequency of the first vibration absorbing part may be lower than the characteristic frequency of the second vibration absorbing part.
  • the first vibration absorbing part may comprise soft rubber, and the second vibration absorbing part may comprise hard rubber.
  • the first and second vibration absorbing parts may be integrated with each other into a single structure.
  • a groove of a predetermined depth is provided between the first and second vibration absorbing parts, thus minimizing interference between the first and second vibration absorbing parts.
  • the washing machine further comprises a fastening unit to support the first and second vibration absorbing parts at predetermined portions thereof and fasten the leg to the cabinet.
  • the fastening unit further comprises a reinforcing part to reinforce strength of one of the first and second vibration absorbing parts.
  • the leg is constructed so that parts thereof having different characteristic frequencies are integrated with each other into a single structure to contact with the support surface.
  • FIG. 1 is a perspective view of a leg included in a washing machine, according to an embodiment of the present invention.
  • FIG. 2 is a sectional view of the leg of FIG. 1.
  • the washing machine includes the leg 1 which has a fastening unit 10 fastened to a cabinet 2 (see, FIGS. 3A and 3B), and a vibration absorbing unit 20 to absorb a vibration.
  • the fastening unit 10 is made of metal, and includes a threaded part 11 and a head part 13 which is provided at an end of the threaded part 11.
  • the threaded part 11 has a cylindrical shape, and is fastened to the cabinet 2.
  • the head part 13 is surrounded by the vibration absorbing unit 20 which will be described later herein.
  • a reinforcing part 15 is provided along an edge of the head part 13 to be downwardly bent.
  • a central portion of a lower surface of the head part 13 of the fastening unit 10 is formed to be concave, and a step is formed on a central portion of an upper surface of the head part 13.
  • the vibration-absorbing unit 20 is made of rubber, and includes first and second vibration absorbing parts 25 and 21, respectively which are integrated with each other into a single structure.
  • the second vibration absorbing part 21 surrounds the reinforcing part 15, while the first vibration absorbing part 25 surrounds the concave central portion of the head part 13.
  • the second vibration absorbing part 21 may be made of hard rubber
  • the first vibration absorbing part 25 may be made of soft rubber. Because the head part 13 is formed to have a concave step on the lower surface thereof, a distance between a bottom surface of the first vibration absorbing part 25 and the lower surface of the head part 13 is longer than a distance between a bottom surface of the second vibration absorbing part 21 and the lower surface of the head part 13.
  • the first and second vibration absorbing parts 25 and 21 can conveniently be made of the same rubber, the first vibration absorbing part 25 has higher elasticity than the second vibration absorbing part 21, and thereby the first and second vibration absorbing parts 25 and 21 have different vibration characteristics.
  • the reinforcing part 15 is embedded in the second vibration absorbing part 21, thus functioning to reinforce strength of the second vibration absorbing part 21.
  • the reinforcing part 15 may be constructed to reinforce strength of the first vibration absorbing part 25. Such a construction increases a difference of a vibration characteristic between the soft and hard rubbers.
  • a groove 27 is provided along a junction between the first and second vibration absorbing parts 25 and 21.
  • the bottom surface of the first vibration absorbing part 25 is placed lower than the bottom surface of the second vibration absorbing part 21, by a height H, so that the first and second vibration absorbing parts 25 and 21 form a step.
  • the groove 27 is formed along the junction between the first and second vibration absorbing parts 25 and 21, so that the first and second vibration absorbing parts 25 and 21 are spaced apart from each other, thus minimizing interference between the first and second vibration absorbing parts 25 and 21.
  • the first vibration absorbing part 25 is placed at the central portion of the lower surface of the head part 13 and the second vibration absorbing part 21 is placed along the edge of the head part 13, thus effectively preventing the first vibration absorbing part 25 from being damaged due to light, heat, chemicals, etc.
  • FIGS. 3A and 3B are sectional views of the leg 1 mounted to the cabinet 2 of the washing machine.
  • the first and second vibration absorbing parts 25 and 21 simultaneously contact the support surface.
  • the bottom surface of the first vibration absorbing part 25 is placed lower than the bottom surface of the second vibration absorbing part 21, the first vibration absorbing part 25 is more elastically deformed than the second vibration absorbing part 21, thus making the first and second vibration absorbing parts 25 and 21 simultaneously contact the support surface.
  • the first vibration absorbing part 25 absorbs the vibration when a frequency of the vibration transmitted from the cabinet 2 to the legs 1 is high. Further, when the frequency of the vibration transmitted from the cabinet 2 to the legs 1 is low, the second vibration absorbing part 21 absorbs the vibration.
  • the weight of water as well as the weight of the cabinet 2 is applied to the legs 1.
  • the weight applied to the legs 1 is varied according to washing operations, such as a water supply operation and a water drain operation.
  • washing operations such as a water supply operation and a water drain operation.
  • a load applied to a drive unit (not shown) is increased.
  • the frequency of the vibration acting on the legs 1 is reduced. Conversely, when water is completely discharged from the washing machine, the load applied to the drive unit is reduced, the frequency of the vibration acting on the legs 1 is increased. When the weight acting on the legs 1 is large, the frequency of the vibration is reduced. Conversely, when the weight acting on the legs 1 is small, the frequency of the vibration is increased.
  • the first vibration absorbing part 25 may be easily plastically deformed.
  • the legs 1 of the washing machine can be constructed so that the first and second vibration absorbing parts 25 and 21 simultaneously contact with the support surface.
  • the second vibration absorbing part 21 prevents the first vibration absorbing part 25 from being plastically deformed.
  • the contracting strain of the vibration absorbing unit 20 is reduced.
  • the cabinet 2 is supported by only the first vibration absorbing part 25, the contracting strain of the vibration absorbing unit 20 is not increased so that the first vibration absorbing part 25 is not plastically deformed.
  • the present invention provides a washing machine having legs contacting a support surface wherein each leg comprises parts having different characteristic frequencies, thus allowing the legs to efficiently absorb a vibration even when a wide range of operation vibration is generated.
  • the washing machine of the present invention is constructed so that vibration absorbing parts of the legs having soft and hard parts simultaneously contact the support surface, thus preventing the soft part from being plastically deformed due to a load of the washing machine or from weakening due to heat or chemicals.
  • each leg comprises parts having different characteristic frequencies, which are integrated with each other into a single structure, thus simplifying manufacturing and assembling processes, therefore increasing productivity.
  • the soft part is placed at a centre of each of the legs and the hard part is placed along an edge of the leg, thus protecting the soft part against light, heat, and chemicals.
  • each of the legs is constructed so that a fastening unit thereof has a step having different characteristic frequencies, thus allowing the vibration absorbing parts having different characteristic frequencies to respectively contact with the support surface although the vibration absorbing parts are made of a same material.
  • the soft and hard parts of the legs form a step, thus allowing the soft part from being elastically deformed to some extent even when the support surface is uneven, therefore allowing the washing machine to be stably placed on the support surface.

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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)
EP04253248A 2003-10-21 2004-06-01 Machines à laver Withdrawn EP1526212A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2003073332 2003-10-21
KR1020030073332A KR20050038118A (ko) 2003-10-21 2003-10-21 세탁기

Publications (2)

Publication Number Publication Date
EP1526212A2 true EP1526212A2 (fr) 2005-04-27
EP1526212A3 EP1526212A3 (fr) 2006-08-23

Family

ID=34386789

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04253248A Withdrawn EP1526212A3 (fr) 2003-10-21 2004-06-01 Machines à laver

Country Status (4)

Country Link
US (1) US20050081577A1 (fr)
EP (1) EP1526212A3 (fr)
JP (1) JP2005125066A (fr)
KR (1) KR20050038118A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469117A2 (fr) * 2003-04-18 2004-10-20 LG Electronics Inc. Dispositif pour réduire les vibrations dans une machine à laver
EP2028388A1 (fr) 2007-08-20 2009-02-25 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Support en caoutchouc

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050257579A1 (en) * 2004-05-21 2005-11-24 Whirlpool Patents Company Force isolating applicance
JP2012237411A (ja) * 2011-05-13 2012-12-06 Meiwa Bendeikusu Kk 機器類の耐震装置
US9416483B1 (en) * 2012-10-24 2016-08-16 Anthony Freakes Laundry machine leveling devices
JP6006828B1 (ja) * 2015-04-30 2016-10-12 ヤマウチ株式会社 防振ゴム
US11453549B1 (en) * 2021-12-20 2022-09-27 Abdullah Issa Bin bag dispenser

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979786A (en) * 1988-06-10 1990-12-25 Sanyo Electric Co., Ltd. Anti-vibration leg unit
EP0874186A1 (fr) * 1997-04-23 1998-10-28 FISHER & PAYKEL LIMITED Dispositif de réglage en hauteur ou de mise à niveau
EP1493357A1 (fr) * 2003-07-04 2005-01-05 Electrolux Home Products Corporation N.V. Appareil ménager et pied de support pour un appareil ménager, en particulier une machine à laver ou une essoreuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2037033A (en) * 1933-10-30 1936-04-14 Hugh C Lord Vibration insulating joint
US7138223B2 (en) * 2002-04-11 2006-11-21 Fuji Photo Film Co., Ltd. Photothermographic material
AU2004201444B2 (en) * 2003-04-18 2007-04-05 Lg Electronics Inc. Washing machine with reduced vibration
JP2004334076A (ja) * 2003-05-12 2004-11-25 Fuji Photo Film Co Ltd 熱現像感光材料、及びその画像形成方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4979786A (en) * 1988-06-10 1990-12-25 Sanyo Electric Co., Ltd. Anti-vibration leg unit
EP0874186A1 (fr) * 1997-04-23 1998-10-28 FISHER & PAYKEL LIMITED Dispositif de réglage en hauteur ou de mise à niveau
EP1493357A1 (fr) * 2003-07-04 2005-01-05 Electrolux Home Products Corporation N.V. Appareil ménager et pied de support pour un appareil ménager, en particulier une machine à laver ou une essoreuse

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1469117A2 (fr) * 2003-04-18 2004-10-20 LG Electronics Inc. Dispositif pour réduire les vibrations dans une machine à laver
EP1469117A3 (fr) * 2003-04-18 2006-09-13 LG Electronics Inc. Dispositif pour réduire les vibrations dans une machine à laver
EP2028388A1 (fr) 2007-08-20 2009-02-25 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Support en caoutchouc
US9771995B2 (en) 2007-08-20 2017-09-26 Ford Global Technologies, Llc Silent block

Also Published As

Publication number Publication date
US20050081577A1 (en) 2005-04-21
JP2005125066A (ja) 2005-05-19
KR20050038118A (ko) 2005-04-27
EP1526212A3 (fr) 2006-08-23

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