KR20040097817A - Damper of washing machine - Google Patents

Damper of washing machine Download PDF

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Publication number
KR20040097817A
KR20040097817A KR1020030030298A KR20030030298A KR20040097817A KR 20040097817 A KR20040097817 A KR 20040097817A KR 1020030030298 A KR1020030030298 A KR 1020030030298A KR 20030030298 A KR20030030298 A KR 20030030298A KR 20040097817 A KR20040097817 A KR 20040097817A
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KR
South Korea
Prior art keywords
friction ring
damper
washing machine
fixed
elastic member
Prior art date
Application number
KR1020030030298A
Other languages
Korean (ko)
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KR100531816B1 (en
Inventor
박승철
박관룡
Original Assignee
엘지전자 주식회사
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Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR10-2003-0030298A priority Critical patent/KR100531816B1/en
Priority to EP04010462A priority patent/EP1477604A3/en
Priority to US10/843,424 priority patent/US7472567B2/en
Priority to CNB2004100431672A priority patent/CN100417763C/en
Publication of KR20040097817A publication Critical patent/KR20040097817A/en
Application granted granted Critical
Publication of KR100531816B1 publication Critical patent/KR100531816B1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/08—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other
    • F16F7/09—Vibration-dampers; Shock-absorbers with friction surfaces rectilinearly movable along each other in dampers of the cylinder-and-piston type
    • 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
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/007—Methods for washing, rinsing or spin-drying for spin-drying only
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/003—Dampers characterised by having pressure absorbing means other than gas, e.g. sponge rubber
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/105—Appliances, e.g. washing machines or dishwashers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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

Abstract

PURPOSE: A damper of a washing machine is provided to secure a 2-stage damping effect obtaining high damping for excessive vibration with large displacement and low damping for normal dewatering with small displacement and to decrease vibration and noise of the washing machine by changing a wave form of transmission force delivered through the damper. CONSTITUTION: In a damper positioned at a lower part of a tub of a washing machine to support the tub and limit a behavior, a movable friction ring(21) and a fixed friction ring of a piston(20) and an elastic member(23) are inserted into a cylinder(10). The fixed friction ring and a guide bar(25) are fastened at an inner end of a rod(24) of the piston. A stopper(26) is fixed to an inner end of the guide bar. The movable friction ring is combined between the stopper and the fixed friction ring to slide left and right. The elastic member is joined to both sides of the movable friction ring. Magnets(27,28) of the elastic member are combined with both sides of the movable friction ring and magnets(29,30) are joined in the stopper and the fixed friction ring.

Description

세탁기 댐퍼{DAMPER OF WASHING MACHINE}Washing machine damper {DAMPER OF WASHING MACHINE}

본 발명은 세탁기의 댐퍼에 관한 것으로, 특히 드럼 세탁기에 사용되는, 가동(可動)의 부재를 가지며 탄성부재에 의해 지지되는 댐퍼(damper)에 마찰부재를 추가함으로써 히스테리시스(hysteresis)에 의한 추가적인 댐핑(damping) 효과를 얻을 수 있도록 한 세탁기의 댐퍼에 관한 것이다.TECHNICAL FIELD The present invention relates to a damper of a washing machine, and more particularly, by adding a friction member to a damper having a movable member and supported by an elastic member, which is used in a drum washing machine. damper of the washing machine to achieve a damping effect.

도 1은 종래 세탁기 댐퍼의 횡단면도를 보인 것이고, 도 2 및 도 3은 종래 댐퍼의 전달력 파형도로서, 도 2는 탈수 시 과도 진동이 가하여 지는 때의 전달력 파형도를 보인 것이고, 도 3은 정상 탈수 진동 시의 전달력 파형도를 보인 것이다.1 is a cross-sectional view of a conventional washing machine damper, Figures 2 and 3 is a transmission force waveform diagram of a conventional damper, Figure 2 is a transmission force waveform diagram when a transient vibration is applied when dehydration, Figure 3 The waveform of the transmission force at the normal dehydration vibration is shown.

먼저, 도 1을 참조하면 종래 세탁기의 댐퍼는 실린더(1)의 내부에 피스톤(2)이 삽입되고, 피스톤(2)의 외주면에는 마찰링(2a)이 결합되며, 실린더(1)의 외측 단부, 그리고 피스톤(2)의 로드(2b)의 외측 단부에는 연결부(1a),(2c)가 구비되어 있다.First, referring to FIG. 1, a damper of a conventional washing machine includes a piston 2 inserted into an interior of a cylinder 1, a friction ring 2a coupled to an outer circumferential surface of the piston 2, and an outer end portion of the cylinder 1. And the connection part 1a, 2c is provided in the outer edge part of the rod 2b of the piston 2. As shown in FIG.

이와 같은 댐퍼는 실린더(1)와 피스톤 로드(2b)가 세탁기의 터브(tub)와 샤시 베이스(chassis base)에 연결부(1a),(2c)로 각각 연결되어 사용된다.Such a damper is used when the cylinder 1 and the piston rod 2b are connected to the tub and the chassis base of the washing machine by connecting portions 1a and 2c, respectively.

이러한 기존 드럼 세탁기의 댐퍼는 터브와 샤시 베이스(chassis base) 사이에 실린더(1)와 피스톤(2)의 형태로 위치하며 피스톤(2)의 외부에 설치된 마찰링(friction ring)과 실린더 내측면 사이에 발생하는 마찰력을 이용하여 세탁/탈수시 터브의 움직임을 제한하거나, 샤시 베이스에 전달되는 힘을 저감하게 된다.The damper of the conventional drum washing machine is located between the tub and the chassis base in the form of a cylinder 1 and a piston 2 and between a friction ring installed outside the piston 2 and an inner surface of the cylinder. By using the frictional force generated in the washing / dehydration to limit the movement of the tub, or to reduce the force transmitted to the chassis base.

이와 같은 종래의 댐퍼는 마찰력에 의한 전달력의 감쇠를 구현하고자 한 것으로, 마찰현상의 특성상 샤시 베이스로 전달되는 힘은 도 2 및 도 3과 같이 사각파형의 형태이며, 이러한 전달력(F)은 주파수 특성은 구동 주파수의 조화 성분에 해당되는 모든 주파수에서 피크(peak)를 야기함으로써 샤시 베이스 등 기타 구조물과의 공진 발생 가능성등이 높아져 세탁기의 진동/소음에 나쁜 영향을 미치게 된다.Such a conventional damper is intended to implement attenuation of the transmission force by the frictional force, the force transmitted to the chassis base due to the characteristics of the friction is in the form of a square wave as shown in Figures 2 and 3, the transmission force (F) is The frequency characteristics cause peaks at all frequencies corresponding to the harmonic components of the driving frequency, thereby increasing the possibility of resonance with other structures such as the chassis base, thereby adversely affecting vibration / noise of the washing machine.

본 발명은 상기한 바와 같은 종래의 문제점 및 결함을 해소하기 위하여 창안한 것으로, 본 발명의 목적은 세탁기의 터브(tub)와 드럼 사이에 위치하여 터브의 움직임을 지지하는 댐퍼에 관한 것으로, 기존의 마찰현상만을 이용한 방식과 달리, 내부에 별도의 가동(可動) 부재를 채용하고 이를 탄성 부재에 의해 지지하며 추가적인 마찰 부재를 채용함으로써, 히스테리시스에 의한 추가적인 댐핑 효과로 인한 진동 전달 저감 및 발생 소음 저감의 효과를 얻을 수 있게 되는 세탁기의 댐퍼를 제공하고자 함에 목적이 있다.The present invention has been made to solve the above problems and defects as described above, the object of the present invention relates to a damper which is located between the tub (tub) and the drum of the washing machine to support the movement of the tub, Unlike the method using only the friction phenomenon, by employing a separate movable member inside, supported by the elastic member, and by adopting an additional friction member, it is possible to reduce vibration transmission and noise generated by additional damping effect by hysteresis. An object of the present invention is to provide a damper of a washing machine in which an effect can be obtained.

도 1은 종래 세탁기 댐퍼의 횡단면도.1 is a cross-sectional view of a conventional washing machine damper.

도 2 및 도 3은 종래 댐퍼의 전달력 파형도로서,2 and 3 is a waveform diagram of the transmission force of the conventional damper,

도 2는 탈수 시 과도 진동이 가하여 지는 때의 전달력 파형도.Figure 2 is a waveform diagram of the transmission force when the transient vibration is applied during dehydration.

도 3은 정상 탈수 진동 시의 전달력 파형도.3 is a waveform diagram of a transmission force during normal dehydration vibration.

도 4는 본 발명의 일 실시예에 의한 댐퍼의 횡단면도.4 is a cross-sectional view of a damper according to an embodiment of the present invention.

도 5는 본 발명의 다른 실시예에 의한 댐퍼의 횡단면도.5 is a cross-sectional view of a damper according to another embodiment of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 실린더 10a,24a : 연결부10: cylinder 10a, 24a: connection portion

20 : 피스톤 21 : 가동 마찰링20: piston 21: movable friction ring

21a,22a : 몸체 21b,22b : 링21a, 22a: Body 21b, 22b: Ring

22 : 고정 마찰링 23 : 탄성부재22: fixed friction ring 23: elastic member

24 : 피스톤 로드 25 : 가이드 봉24: piston rod 25: guide rod

26 : 스토퍼 27,28,29,30 : 마그네트26: stopper 27, 28, 29, 30: magnet

31,32 : 압축스프링31,32: compression spring

위와 같은 목적을 달성하기 위하여 본 발명에 의한 세탁기의 댐퍼는 세탁기의 터브 하부에 위치하여 터브를 지지하고 거동을 제한하는 댐퍼에 있어서, 피스톤의 로드 끝단과 스토퍼(stopper) 사이에 연결된 가이드 봉(guide bar)를 따라 구동 가능한 가동 마찰링(슬라이더)를 가지며 상기 슬라이더는 피스톤, 스토퍼, 슬라이더의 양단에 마주보도록 결합되는 마그네트 또는 압축스프링과 같은 탄성부재에 의해 지지되는 구조이며, 슬라이더 의 측면과 피스톤 끝단 측면에 각각 적절한 마찰링을 가짐으로써 실린더의 거동 진폭에 따라 각기 다른 감쇠 계수를 가지는 구조로구성된다.In order to achieve the above object, a damper of a washing machine according to the present invention is a damper positioned at a lower portion of a tub of a washing machine to support a tub and limit a behavior thereof, and a guide rod connected between a rod end of the piston and a stopper. and a movable friction ring (slider) which can be driven along the bar), and the slider is supported by an elastic member such as a piston, a stopper, a magnet or a compression spring coupled to opposite ends of the slider, and the side of the slider and the piston end. Each side has an appropriate friction ring so that the structure has different damping coefficients according to the cylinder's behavioral amplitude.

이와 같은 본 발명에 의한 세탁기의 댐퍼는 실린더 내부에 별도의 가동(可動) 부재를 채용하고 이를 탄성 부재에 의해 지지하며 추가적인 마찰 부재를 채용함으로써, 히스테리시스에 의한 추가적인 댐핑 효과로 인한 진동 전달 저감 및 발생 소음 저감의 효과를 얻을 수 있게 된다.The damper of the washing machine according to the present invention employs a separate movable member inside the cylinder, supports it by an elastic member, and employs an additional friction member, thereby reducing and generating vibration transmission due to an additional damping effect by hysteresis. The effect of noise reduction can be obtained.

이하, 본 발명을 첨부한 도면에 실시예를 들어 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail as follows.

도 4는 본 발명의 일 실시예에 의한 댐퍼의 횡단면도를 보인 것으로, 이에 도시한 바와 같이 실린더(10)의 내부에 가동 마찰링(21)과 고정 마찰링(22) 및 탄성부재(23)가 구비된 피스톤(20)이 삽입 설치되고, 피스톤(20)의 로드(24)가 실린더(10)의 외측으로 연장되어 있으며, 상기 실린더(10)와 피스톤 로드(24)의 외측 단부에는 연결부(10a),(24a)가 구비되어 있다.Figure 4 shows a cross-sectional view of the damper according to an embodiment of the present invention, as shown in the movable friction ring 21, the fixed friction ring 22 and the elastic member 23 inside the cylinder 10 The provided piston 20 is inserted and installed, the rod 24 of the piston 20 extends to the outside of the cylinder 10, the connecting portion 10a at the outer end of the cylinder 10 and the piston rod 24 And 24a are provided.

상기 가동 마찰링(21)은 피스톤 로드(24)에 미끄럼 이동 가능하게 결합되어 피스톤 로드(24)에 대하여 상대적 이동이 가능하고, 상기 고정 마찰링(22)은 피스톤 로드(24)에 함께 움직이도록 고정되어 고정 마찰링(22)과 피스톤 로드(24)는 상대적 이동이 불가능하게 구성된다.The movable friction ring 21 is slidably coupled to the piston rod 24 to allow relative movement with respect to the piston rod 24, and the fixed friction ring 22 to move together with the piston rod 24. The fixed friction ring 22 and the piston rod 24 are fixed so that the relative movement is impossible.

또한, 상기 피스톤(20)은 피스톤 로드(24)의 내측단부에 고정 마찰링(22)과 가이드 봉(25)이 고정되고, 가이드 봉(25)의 내측단부에 스토퍼(26)가 고정되며, 상기 고정 마찰링(22)보다 큰 마찰력을 갖는 가동 마찰링(21)이 상기 스토퍼(26)와 고정 마찰링(22) 사이에 좌우로 슬라이드 이동 가능하게 결합되고, 가동마찰링(21)의 양측에 탄성부재(23)가 결합된 구성으로 되어 있다.In addition, the piston 20 is a fixed friction ring 22 and the guide rod 25 is fixed to the inner end of the piston rod 24, the stopper 26 is fixed to the inner end of the guide rod 25, A movable friction ring 21 having a greater frictional force than the fixed friction ring 22 is slidably coupled left and right between the stopper 26 and the fixed friction ring 22, and both sides of the movable friction ring 21. The elastic member 23 is coupled to the configuration.

상기 탄성부재(23)는 가동 마찰링(21)을 기준으로 가동 마찰링(21)의 양측면에 마그네트(27),(28)를 함께 움직이도록 결합하고, 스토퍼(26)와 고정 마찰링(22)의 내측에 마그네트(29),(30)를 결합한 구성으로 되어 있다.The elastic member 23 is coupled to both sides of the movable friction ring 21 relative to the movable friction ring 21 to move the magnets 27 and 28 together, and the stopper 26 and the fixed friction ring 22. The magnets 29 and 30 are coupled to the inside of the pad.

상기 가동 마찰링(21)과 고정 마찰링(22)은 금속재나 수지재 몸체(21a),(22a)의 외주면에 마찰력을 갖는 링(21b),(22b)을 결합한 형태가 바람직한 것이나, 자체적으로 마찰력을 갖는 재질로 형성할 수도 있다.Preferably, the movable friction ring 21 and the fixed friction ring 22 combine the rings 21b and 22b having frictional forces with the outer circumferential surfaces of the metal or resin bodies 21a and 22a. It may be formed of a material having a friction force.

도 5는 본 발명의 다른 실시예에 의한 댐퍼의 횡단면도를 보인 것으로, 이 다른 실시예에서 상기 탄성부재(23)는 스토퍼(26)와 가동 마찰링(21)의 사이, 그리고 가동 마찰링(21)과 고정 마찰링(22)의 사이에 압축스프링(31),(32)이 각각 삽입되어 구성된다.Figure 5 shows a cross-sectional view of a damper according to another embodiment of the present invention, in which the elastic member 23 is between the stopper 26 and the movable friction ring 21, and the movable friction ring 21 Compression springs 31 and 32 are inserted between the fixed friction ring 22 and the fixed friction ring 22, respectively.

이와 같은 본 발명에 의한 세탁기의 댐퍼는 세탁기의 세탁/탈수시 터브의 거동에 따라 실린더(10)가 움직이며 그 변위를 X1이라 할때 X1이 피스톤 로드(24)를 기준으로 상대적으로 이동 가능한 가동 마그네트(27),(28)와 피스톤 로드(24)를 기준으로 고정되어 있는 고정 마그네트(29),(30) 사이의 간격(Δ)보다 작을 경우에는, 가동 마찰링(21)의 마찰력이 고정 마찰링(22)보다 크기 때문에 실린더(10)와 가동 마찰링(21)은 같이 움직이게 되며 이때 베이스측으로 전달되는 힘은 고정 마찰링(22)에 해당되는 F2 와 탄성부재(23) 사이에 작용하는 반발력(RM)의 합이다.The damper of the washing machine according to the present invention is a cylinder 10 moves according to the behavior of the tub during washing / dehydration of the washing machine and X1 is movable relative to the piston rod 24 when the displacement is X1 When the distance between the fixed magnets 29 and 30 fixed to the magnets 27 and 28 and the piston rod 24 is smaller than Δ , the frictional force of the movable friction ring 21 is fixed. Since the cylinder 10 and the movable friction ring 21 move together because they are larger than the friction ring 22, the force transmitted to the base side acts between the elastic member 23 and F2 corresponding to the fixed friction ring 22. It is the sum of the repulsive forces (RM).

그리고 X1이Δ보다 큰 경우, 즉 가동 마찰링(21)과 고정 마찰링(22)의 끝단이 닿은 이후에는 F1+F2 의 힘이 베이스로 전달된다.When X1 is larger than Δ , that is, after the ends of the movable friction ring 21 and the fixed friction ring 22 reach, the force of F1 + F2 is transmitted to the base.

이와 같은 거동에 따라 X1에 따른 전달력은 다음과 같이 나타낼 수 있다.According to this behavior, the transmission force according to X1 can be expressed as follows.

X1 = A*sin(ωt)X1 = A * sin ( ω t)

dX1 = Aω*cos(ωt)dX1 = A ω * cos ( ω t)

F = RM(X1) + Bsgn(dX1) , (| X1 | < gap)F = RM (X1) + Bsgn (dX1), (| X1 | <gap)

F = (A+B)sgn(dX1) , (| X1 | ≥ gap)F = (A + B) sgn (dX1), (| X1 | ≥ gap)

X1 ; 실린더 의 변위X1; Displacement of cylinder

dX1; 실린더 의 속도dX1; Cylinder speed

ω; 탈수/세탁 회전 주파수 ω ; Dewatering / Laundry Rotating Frequency

RM ; 탄성부재에 의한 반발력RM; Repulsive force by elastic member

A ; 하이 댐핑 팩터(high damping factor)(가동 마찰링)A; High damping factor (moving friction ring)

B ; 로우 댐핑 팩터(low damping factor)(고정 마찰링)B; Low damping factor (fixed friction ring)

※ Sgn(X)함수는 변수 X가 양일 경우 1, 음일 경우 0※ Sgn (X) function is 1 if the variable X is positive, 0 if the negative

이상에서 설명한 바와 같은 본 발명은 변위가 큰 과도진동시에는 높은 감쇠를 얻을 수 있으며 변위가 작은 정상 탈수시에는 낮은 감쇠를 얻을 수 있는 2단계의 댐핑 효과를 기대 할 수 있다. 또한, 댐퍼를 통해 전달되는 전달력의 파형을 변화시킴으로써 세탁기의 진동/소음을 저감할 수 있다.As described above, the present invention can expect a high damping effect in the case of transient vibration with large displacement and low damping effect in the normal dehydration with small displacement. In addition, by changing the waveform of the transmission force transmitted through the damper it is possible to reduce the vibration / noise of the washing machine.

Claims (3)

세탁기의 터브 하부에 위치하여 터브를 지지하고 거동을 제한하는 댐퍼에 있어서, 실린더의 내부에 피스톤의 가동 마찰링, 고정 마찰링 및 탄성부재가 삽입됨과 아울러, 피스톤의 로드 내측단부에 상기 고정 마찰링과 가이드 봉이 고정되고, 상기 가이드 봉의 내측단부에 스토퍼가 고정되며, 상기 가동 마찰링이 상기 스토퍼와 고정 마찰링 사이에 좌우로 슬라이드 이동 가능하게 결합되고, 가동 마찰링의 양측에 탄성부재가 결합되어 구성된 것을 특징으로 하는 세탁기의 댐퍼.In the damper located under the tub of the washing machine to support the tub and limit the behavior, the movable friction ring, the fixed friction ring and the elastic member of the piston is inserted into the cylinder, and the fixed friction ring at the inner end of the piston rod And the guide rod is fixed, the stopper is fixed to the inner end of the guide rod, the movable friction ring is slidably coupled to the left and right between the stopper and the fixed friction ring, the elastic member is coupled to both sides of the movable friction ring Damper of the washing machine, characterized in that configured. 제 1 항에 있어서, 상기 탄성부재는 상기 가동 마찰링의 양측면과 상기 스토퍼와 고정 마찰링의 내측에 마그네트를 마주 보도록 각각 결합하여 구성한 것임을 특징으로 하는 세탁기의 댐퍼.The damper of claim 1, wherein the elastic member is configured to be coupled to both sides of the movable friction ring and the stopper and the inner side of the fixed friction ring so as to face a magnet. 제 1 항에 있어서, 상기 탄성부재는 상기 스토퍼와 가동 마찰링의 사이, 그리고 가동 마찰링과 고정 마찰링의 사이에 압축스프링이 각각 삽입되어 구성된 것을 특징으로 하는 세탁기의 댐퍼.The damper of claim 1, wherein the elastic member is formed by inserting a compression spring between the stopper and the movable friction ring and between the movable friction ring and the fixed friction ring.
KR10-2003-0030298A 2003-05-13 2003-05-13 Damper of washing machine KR100531816B1 (en)

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KR10-2003-0030298A KR100531816B1 (en) 2003-05-13 2003-05-13 Damper of washing machine
EP04010462A EP1477604A3 (en) 2003-05-13 2004-05-03 Damper for washing machine
US10/843,424 US7472567B2 (en) 2003-05-13 2004-05-12 Damper for washing machine
CNB2004100431672A CN100417763C (en) 2003-05-13 2004-05-13 Damper for washing machine

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691878B1 (en) * 2003-10-06 2007-03-09 엘지전자 주식회사 Damper of washing machine
WO2011057372A1 (en) * 2009-11-11 2011-05-19 Whirlpool S.A. Damping device for the suspension system of a laundry machine
CN102560963A (en) * 2011-12-27 2012-07-11 海尔集团公司 Variable damping shock absorber with motor and washing machine with shock absorber
KR20130002829A (en) * 2011-06-29 2013-01-08 엘지전자 주식회사 A continuous damping device for vibration mitigation of a wasihing machine
KR101475160B1 (en) * 2013-11-12 2014-12-22 홍익대학교 산학협력단 Smart damper using magnets and pre-compressed rubber springs

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691878B1 (en) * 2003-10-06 2007-03-09 엘지전자 주식회사 Damper of washing machine
WO2011057372A1 (en) * 2009-11-11 2011-05-19 Whirlpool S.A. Damping device for the suspension system of a laundry machine
KR20130002829A (en) * 2011-06-29 2013-01-08 엘지전자 주식회사 A continuous damping device for vibration mitigation of a wasihing machine
CN102560963A (en) * 2011-12-27 2012-07-11 海尔集团公司 Variable damping shock absorber with motor and washing machine with shock absorber
KR101475160B1 (en) * 2013-11-12 2014-12-22 홍익대학교 산학협력단 Smart damper using magnets and pre-compressed rubber springs

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