KR100215334B1 - Full automatic washing machine - Google Patents

Full automatic washing machine Download PDF

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Publication number
KR100215334B1
KR100215334B1 KR1019970000957A KR19970000957A KR100215334B1 KR 100215334 B1 KR100215334 B1 KR 100215334B1 KR 1019970000957 A KR1019970000957 A KR 1019970000957A KR 19970000957 A KR19970000957 A KR 19970000957A KR 100215334 B1 KR100215334 B1 KR 100215334B1
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South Korea
Prior art keywords
buffer tube
washing machine
damper cap
state
damper
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KR1019970000957A
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Korean (ko)
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KR19980065805A (en
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강성구
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구자홍
엘지전자주식회사
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Priority to KR1019970000957A priority Critical patent/KR100215334B1/en
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    • 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
    • D06F37/24—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations in machines with a receptacle rotating or oscillating about a vertical 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D06F37/268—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for suspension devices
    • 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
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

본발명은 세탁내조가 탈수공정시에 회전수의 변화에 따른 과도상태의 완충력과 정상상태의 완충력을 적절하게 유지시켜줄수 있도록 안출된 것으로,According to the present invention, the washing tank is designed to maintain the buffering capacity of the transient state and the buffering state of the steady state according to the change of rotation speed during the dehydration process.

세탁기의 탈수행정시 세탁내조에 나타나는 과도상태와 정상상태에 대한 진동 특성에 대응 하기 위하여 세탁외조의 댐퍼캡을 탄력부재와 함께 결합하고 있는 스너버바에 고정된 완충튜브와, 상기 완충튜브가 탄력부재의 탄력 정도에 따라 댐퍼캡의 내주면과 넓은접촉 및 좁은접촉을 하면서 마찰력을 발생시키도록 완충튜브의 내부에 소정의 압력으로 충진되는 유체를 구비한 것을 특징으로 하는 전자동 세탁기의 완충 장치를 제공한다.A buffer tube fixed to a snubber bar that combines a damper cap of a laundry outer tub with an elastic member to cope with transient characteristics and vibration characteristics of a washing tub during dehydration of the washing machine, and the buffer tube is a flexible member. According to the elasticity of the provides a shock absorbing device of a fully automatic washing machine, characterized in that the fluid is filled with a predetermined pressure inside the buffer tube to generate a frictional force while making a wide contact and narrow contact with the inner peripheral surface of the damper cap.

Description

전자동 세탁기의 완충장치 {FULL AUTOMATIC WASHING MACHINE}Shock Absorber of Fully Automatic Washing Machine {FULL AUTOMATIC WASHING MACHINE}

본발명은 세탁기의 완충장치에 관한 것으로서 특히, 세탁내조가 탈수공정시에 회전수의 변화에 따른 과도상태의 완충력과 정상상태의 완충력을 적절하게 유지시켜줄수 있는 전자동 세탁기의 완충장치에 관한 것이다.The present invention relates to a shock absorber of the washing machine, and more particularly, to a shock absorber of the automatic washing machine that can properly maintain the buffering capacity of the transient state and the buffering state of the steady state according to the change of rotation speed during the washing tank.

종래 세탁기의 완충장치는 도1내지 도5에 나타내었다.A shock absorber of a conventional washing machine is shown in FIGS.

상기 완충장치의 구성은 세탁기(6)의 캐비넷(7)에 고정되는 스너버바(2)와,상기 스너버바(2)의 끝단부에 결합되어 코일스프링(5)에 의해 탄력을 발휘하는 댐퍼고무(3)와, 상기 댐퍼고무(3)와 승강동작에 의해 내면을 접촉시키면서 마찰에 의해 진동과 소음을 완충시키는 세탁외조(8)에 연결된 댐퍼캡(1)과, 상기 댐퍼캡(1)과 댐퍼고무(3)의 사이에 탄지되어 서로를 지지하여서 완충력을 발휘하는 탄성부재The shock absorber comprises a snubber bar 2 fixed to the cabinet 7 of the washing machine 6, and a damper rubber coupled to the end of the snubber bar 2 to exert elasticity by the coil spring 5. (3), a damper cap (1) connected to the wash tub (8) for damping vibration and noise by friction while contacting the damper rubber (3) with an inner surface by lifting and lowering operation, and the damper cap (1); Elastic members that are supported between the damper rubbers 3 to support each other and exhibit a buffering force

(4)를 구비한 구성으로 되었다.It became the structure provided with (4).

상기와같은 종래 세탁기의 완충장치에 구비되는 스너버바(2)는 단순히 세탁외조(8)를 지지하는 구조로서 세탁외조(8)가 스너버바(2)에 걸려있는 형태를 취하고 있다.The snubber bar 2 provided in the above shock absorber of the conventional washing machine has a structure in which the laundry outer tub 8 is hung on the snubber bar 2 as a structure for simply supporting the laundry outer tub 8.

상기와 같은 상태에서 탈수공정이 시작 되면 세탁내조(9)의 회전속도가 빨라지게 되어 세탁내조(9)에 존재하는 불균형력에 의한 진동특성이 나타나게된다.When the dehydration process is started in the above state, the rotational speed of the washing tub 9 is increased, so that vibration characteristics due to the imbalance force present in the washing tub 9 appear.

상기의 세탁내조(9)에 나타나는 진동은 세탁기(6)의 캐비넷(7)으로 전달 되면서 캐비넷(7)이 떨리는 상태가 되고 아울러 소음이 동반하게 된다.Vibration appearing in the washing tub 9 is transmitted to the cabinet 7 of the washing machine 6, the cabinet 7 is in a shaking state and accompanied by noise.

따라서, 종래에는 상기의 진동과 소음을 저감 시키기 위하여 댐퍼고무(3)와 댐퍼(1)그리고 탄력부재(4)의 마찰과 탄력에 의존 하고 있다.Therefore, in order to reduce the vibration and noise in the prior art, it is dependent on the friction and elasticity of the damper rubber (3), damper (1) and the elastic member (4).

즉, 도2와 같이 탈수시 세탁내조(9)의 회전수가 정지상태에서 정상적인 회전수까지 도달하는 과정에서의 과도기적 상태 에서는 세탁내조(9)가 과도진동 특성을 나타내게 되므로 이러한 진동특성을 저감하기 위하여 탈수초기의 상태를 이용하게 되는바, 탈수초기의 상태는 세탁물과 세탁수의 무게에 의해 탄력부재(4)가 압축되어 있는 상태가 된다.That is, in the transitional state in which the rotational speed of the washing tub 9 reaches a normal rotational speed during dehydration as shown in FIG. 2, the washing tub 9 exhibits transient vibration characteristics so as to reduce such vibration characteristics. The state of the dehydration stage is used, the state of the dehydration stage is a state in which the elastic member 4 is compressed by the weight of the laundry and the washing water.

이때, 상기 댐퍼캡(1)의 상측부는 경사를 유지하고 있기 때문에 댐퍼고무At this time, since the upper portion of the damper cap 1 maintains the inclination, the damper rubber

(3)가 댐퍼캡(1)에 더욱 밀착되면서 마찰력을 증가시키게 된다.(3) is closer to the damper cap (1) to increase the friction force.

또한, 도3과 같이 정상 탈수상태에서는 상당량의 세탁수가 배수됨에 따라 세탁내조(9)내부에는 세탁물과 세탁물이 포함하고 있는 약간의 세탁수정도가 남을뿐 많은 무게가 줄어 들게 되어 가벼운 상태가 된다.In addition, in the normal dehydration state, as shown in Figure 3, as a considerable amount of washing water is drained, the washing tank 9 has a small amount of washing water, which includes laundry and laundry, and the weight is reduced, resulting in a light state.

따라서, 탄력부재(4)가 이완되면서 댐퍼고무(3)를 댐퍼캡(1)의 하측부로 이동시켜주게 된다.Accordingly, the elastic member 4 is relaxed to move the damper rubber 3 to the lower side of the damper cap 1.

이때, 상기 댐퍼캡(1)의 하단부는 상단부조다 넓은 크기를 가지고 있으므로 댐퍼캡(1)과 댐퍼고무(3)간의 마찰력을 감소 시킬수 있게되는 작용을 하게 된다.At this time, since the lower end of the damper cap 1 has a wider size than the upper part of the damper cap 1, the damper cap 1 and the damper rubber 3 have a function of reducing the friction force.

상기와같은 종래의 문제점은 탈수회전의 상태에 따라 완충력을 변화시킴에 있어서 초기의 댐퍼캡 형상에 따라 그변화의 폭이 작아서 충분한 과도진동의 상태와 정상탈수상태의 적절한 완충력을 유지하기 어렵게된다.In the conventional problem as described above, the change of the buffering force in accordance with the state of the dehydration rotation is small depending on the initial damper cap shape, it is difficult to maintain a sufficient transient vibration and the proper buffering force of the normal dehydration state.

또한,세탁물의 용량에 따라서도 적절히 대응하기 어려운 구조를 가지고 있었다.Moreover, it had a structure which is difficult to respond suitably also according to the capacity of a laundry.

따라서, 과도상태의 진동특성에 기초하여 댐퍼캡를 설치하는 경우 정상탈수상태에서는 세탁기의 캐비넷에 전달되는 진동전달력이 커지게 됨은 물론 이로인한 소음이 증가되고 반대의 경우 과도 상태의 진동특성을 충분히 잡아주지 못하게 되는 문제점을 가지고 있었다.Therefore, when the damper cap is installed on the basis of the vibration characteristics of the transient state, the vibration transfer power delivered to the cabinet of the washing machine becomes larger in the normal dehydration state, and the noise caused by this is increased, and in the opposite case, the vibration characteristics of the transient state are sufficiently caught. Had a problem that can not give.

그리고, 댐퍼고무(3)와 댐퍼캡(1)의 마찰특성을 고르게 하기 위하여 도4 및 도5에 나타낸 바와같이 댐퍼고무(3)내부에 원형상의 코일스프링(5)을 설치하게 된다.Then, in order to equalize the friction characteristics between the damper rubber 3 and the damper cap 1, circular coil springs 5 are provided inside the damper rubber 3 as shown in Figs.

상기의 코일스프링(5)은 원주방향으로 균일한 힘을 주지 못하게 됨으로서 댐퍼고무(3)의 마찰력이 균일하지 못하게 된다.The coil spring 5 does not give a uniform force in the circumferential direction, so that the friction force of the damper rubber 3 is not uniform.

따라서, 탈수시에 불규칙한 소음이 발생하게 되어 전체적인 소음의 크기가 커지게되는 등의 문제점을 가지고 있었다.Therefore, irregular noise is generated during dehydration, and thus the overall noise level is increased.

이러한 종래의 문제점 등을 해결 보완 하기 위하여 본발명은,The present invention to solve and solve such a conventional problem,

탈수행정시에 나타나는 과도상태와 전상탈수상태에 대한 진동특성에 대응하기 위하여 완충력을 유연하게 변화시켜서 완충력을 적절하게 유지 시켜줄수 있도록 하는 목적을 제공 한다.In order to cope with the vibration characteristics of the transient state and the phase dehydration state during dehydration administration, the buffer force can be changed flexibly to maintain the buffer force properly.

상기의 목적을 달성하기 위하여 본발명은,In order to achieve the above object, the present invention,

세탁기의 탈수행정시 세탁내조에 나타나는 과도상태와 정상상태에서 진동특성에 의해 불규칙한 소음 및 진동이 발생되는 것을 방지하기 위하여 세탁외조의 댐퍼캡을 탄력부재와 함께 결합하고 있는 스너버바에 고정된 완충튜브와,Shock-absorbing tube fixed to the snubber bar which combines the damper cap of the laundry outer tub with the elastic member to prevent the occurrence of irregular noise and vibration due to the vibration characteristics in the transient state and the steady state appearing in the washing tub during the dehydration operation of the washing machine. Wow,

상기 완충튜브가 탄력부재의 탄력 정도에 따라 댐퍼캡의 내주면과 넓은접촉 및 좁은접촉을 하면서 마찰력을 발생시키도록 완충튜브의 내부에 소정의 압력으로 충진되는 유체를 구비하면 본발명의 목적을 달성할 수 있다.When the buffer tube is provided with a fluid filled at a predetermined pressure in the interior of the buffer tube to generate a frictional force while making a wide contact and narrow contact with the inner peripheral surface of the damper cap according to the elasticity of the elastic member to achieve the object of the present invention Can be.

도1은 종래의 완충장치가 세탁기에 설치된 상태의 도면1 is a view of a conventional shock absorber installed in a washing machine

도2는 종래의 완충장치가 과도구간에서 작용되는 상태를 나타낸 작용도Figure 2 is a functional diagram showing a state in which the conventional shock absorber acts between the tools

도3은 종래 완충장치가 정상구간에서 작용되는 상태를 나타낸 작용도Figure 3 is a functional diagram showing a state in which the conventional shock absorber acts in the normal section

도4는 종래 완충장치에 장착되는 댐퍼고무의 구성을 나타낸 단면도Figure 4 is a cross-sectional view showing the configuration of a damper rubber mounted to a conventional shock absorber

도5는 종래 도4의 저면도Figure 5 is a bottom view of the prior art Figure 4

도6은 본발명의 완충장치가 세탁기에 설치된 상태의 도면Figure 6 is a view of the shock absorber of the present invention installed in a washing machine

도7은 본발명의 완충장치가 과도구간에서 작용되는 상태를 나타낸 작용도Figure 7 is a functional diagram showing a state in which the buffer device of the present invention acts between the tools

도8은 본발명의 완충장치가 정상구간에서 작용되는 상태를 나타낸 작용도Figure 8 is a functional diagram showing a state in which the shock absorber of the present invention operates in the normal section

도9는 본발명의 완충장치에 장착되는 완충튜브의 구성을 나타낸 단면도Figure 9 is a cross-sectional view showing the configuration of the buffer tube mounted on the shock absorber of the present invention

도10은 본발명의 완충장치에 장착되는 완충튜브의 작용을 나타낸 작용도Figure 10 is a functional diagram showing the action of the buffer tube mounted on the shock absorber of the present invention

도면중 주요부분에 대한 부호설명Explanation of Codes on Major Parts of Drawings

101-완충튜브 102-유체101-buffer tube 102-fluid

본발명의 구성을 도6 내지 도10에 의해 상세히 설명 하기로 한다.The configuration of the present invention will be described in detail with reference to Figs.

세탁기(131)의 탈수행정시 세탁내조(134)에 나타나는 과도상태와 정상상태에 대한 진동 특성에 대응 하기 위하여 세탁외조(133)의 댐퍼캡(103)을 탄력부재In order to cope with the vibration characteristics of the transient state and the steady state appearing in the washing tub 134 when the washing machine 131 is dewatered, the damper cap 103 of the washing tub 133 is elastic member.

(105)와 함께 결합하고 있는 스너버바(104)에 고정된 완충튜브(101)와,A buffer tube (101) fixed to the snubber bar (104) engaged with the (105),

상기 완충튜브(101)가 탄력부재(105)의 탄력 정도에 따라 댐퍼캡(103)의 내주면과 넓은접촉 및 좁은접촉을 하면서 마찰력을 발생시키도록 완충튜브(101)의 내부에 소정의 압력으로 충진되는 유체(102)를 구비한 구성이다.The buffer tube 101 is filled at a predetermined pressure in the buffer tube 101 to generate frictional force while making wide contact and narrow contact with the inner circumferential surface of the damper cap 103 according to the elasticity of the elastic member 105. It is the structure provided with the fluid 102 to become.

이와같이된 본발명의 작용효과를 설명 하면 다음과 같다.The effect of the present invention thus described is as follows.

먼저, 탈수시의 세탁내조(134)에는 세탁물과 세탁수가 혼합된 상태이므로 상당한 중량이 실린 상태가 되어 도7과 같이 댐퍼캡(103)이 스너버바(104)의 탄력부재(105)를 압축한 상태에서 댐퍼작용을 하게 된다.First, since the laundry inner tub 134 at the time of dehydration is mixed with the laundry and the washing water, a considerable weight is loaded and the damper cap 103 compresses the elastic member 105 of the snubber bar 104 as shown in FIG. The damper acts in the state.

이때, 상기 스너버바(104)의 끝단부에 결합되어 있는 완충튜브(101)의 외주면은 탄력부재(105)의 압축력에 의해 내부의 유체(102)가 외측으로 밀리면서 넓은면적으로 댐퍼캡(103)의 내면과 접촉하게 된다.At this time, the outer circumferential surface of the buffer tube 101 coupled to the end of the snubber bar 104 has a damper cap 103 in a large area while the fluid 102 inside is pushed out by the compressive force of the elastic member 105. ) Is in contact with the inner surface.

따라서, 큰 마찰력이 발생되면서 과도구간의 과중한 진동을 소진시킬수 있게된다. 그리고, 세탁내조(134)의 세탁수가 원심력에 의해 탈수되면 자연히 세탁내조Therefore, a large frictional force is generated, it is possible to exhaust the heavy vibration between the tools. Then, when the wash water of the washing tank 134 is dehydrated by centrifugal force, the washing tank is naturally

(134)의 무게가 가벼워지게 되고 가벼워진 무게에 의해 스너버바(104)에 결합된 탄력부재(105)의 탄성이 복구되면서 도8과같이 댐퍼캡(103)을 상측으로 밀어 올리게 된다.The weight of 134 becomes lighter and the elasticity of the elastic member 105 coupled to the snubber bar 104 is restored by the lighter weight, thereby pushing up the damper cap 103 as shown in FIG. 8.

상기와같이 댐퍼캡(103)이 상승된 상태는 완충튜브(101)가 내부의 유체As described above, the damper cap 103 is raised in a state in which the buffer tube 101 has a fluid inside.

(102)에 의해 외측으로 적게 밀리면서 좁은면적으로 댐퍼캡(103)의 내면과 접촉을 하게된다.A small area pushed out by 102 makes contact with the inner surface of the damper cap 103.

따라서, 작은 마찰력이 발생되면서 정상구간의 적은 진동을 소진 시킬수 있게된다.Therefore, a small frictional force is generated, it is possible to exhaust the small vibration of the normal section.

한편, 완충튜브(101)내부에 충진되어 있는 유체는 공기나 기름 그리고 물과 같은 유체를 사용하여도 무방하나 압축력이 좋은 공기를 사용하는 것이 바람직 할것이며 부득이 유체를 사용할 때에는 얼지 않는 기름을 사용하는 것이 옳을 것이다.On the other hand, the fluid filled in the buffer tube 101 may be a fluid such as air, oil, and water, but it is preferable to use a good compressive air, and inevitably use oil that does not freeze when using the fluid Would be right.

그리고, 도9와 도10은 상기 완충튜브(102)의 과도구간과 정상구간에서의 접촉면적의 차이를 나타낸 것으로 과도구간에서는 L1의 접촉면적을 갖게 되고 정상구간 에서는 L2 의 접촉면적을 갖게 되는바, 이는 상기 댐퍼캡(103)이 상협하광의 구조로 되어 있기 때문에 가능하게 되나 설령 동일 관경을 갖는 댐퍼캡에 적용시켜도 무방하게 된다.9 and 10 show the difference in the contact area between the overtool and the normal section of the buffer tube 102, the contact area of L1 in the overtool and the contact area of L2 in the normal section. This is possible because the damper cap 103 has a structure of upper and lower light, but may be applied to a damper cap having the same diameter.

즉, 상기 완충튜브(101)의 내부에 충진되어 있는 유체(102)는 힘을 받으면 외측으로 확장되려는 성질을 갖고 있기 때문에 탄력부재(105)의 압축력이 강하면 강할수록 외측으로 확장되면서 접촉면적을 넓게 할수 있고 탄성부재(105)의 압축력이 약해지면 그 약해지는 힘 만큼 축소되면서 접촉면적을 적게 할수 있게 된다.That is, since the fluid 102 filled in the buffer tube 101 has a property of expanding outward when a force is applied, the stronger the compressive force of the elastic member 105, the wider the contact area is, the more it expands outward. If the compressive force of the elastic member 105 is weakened, the weakened force may be reduced and the contact area may be reduced.

그러나, 상기와 같이 댐퍼캡이 동일관경일 경우에는 아무래도 접촉면적이 상협하광형의 댐퍼캡(103)보다 좁기 때문에 확실한 댐퍼력을 얻기 위해서는 상협하광의 댐퍼캡(103)을 사용하는 것이 바람직스러울 것이다.However, in the case where the damper cap has the same diameter as described above, since the contact area is narrower than that of the damper cap 103 of the upper and lower light type, it is preferable to use the damper cap 103 of the upper and lower light to obtain a certain damper force. .

이와같이된 본발명은 과도구간에서는 완충튜브가 넓은 접촉면적을 가지면서 댐퍼캡의 내면과 접촉하게 되고 정상구간에서는 좁은 접촉면적을 가지면서 댐퍼캡의 내면과 접촉하여 마찰력을 조절할 수 있게되므로 진동을 효과적으로 소진시킬수 있게 되고 아울러 소음도 극소로 줄일수 있는 유용한 효과를 갖는다.Thus, the present invention has a large contact area between the damper cap and the inner surface of the damper cap in the tool section, and has a narrow contact area in the normal section, so that the friction force can be adjusted by contacting the inner surface of the damper cap. It can be exhausted and has a useful effect of minimizing noise.

Claims (4)

세탁기의 탈수행정시 세탁내조에 나타나는 과도상태와 정상상태에서 진동특성에 의해 불규칙한 소음 및 진동이 발생되는 것을 방지하기 위하여 세탁외조의 댐퍼캡을 탄력부재와 함께 결합하고 있는 스너버바에 고정된 완충튜브와,Shock-absorbing tube fixed to the snubber bar which combines the damper cap of the laundry outer tub with the elastic member to prevent the occurrence of irregular noise and vibration due to the vibration characteristics in the transient state and the steady state appearing in the washing tub during the dehydration operation of the washing machine. Wow, 상기 완충튜브가 탄력부재의 탄력 정도에 따라 댐퍼캡의 내주면과 넓은접촉 및 좁은접촉을 하면서 마찰력을 발생시키도록 완충튜브의 내부에 소정의 압력으로 충진되는 유체를 구비한 것을 특징으로 하는 전자동 세탁기의 완충장치.According to claim 1, wherein the buffer tube has a fluid filled at a predetermined pressure in the buffer tube to generate frictional force while making wide contact and narrow contact with the inner circumferential surface of the damper cap according to the elasticity of the elastic member. Shock absorber. (삭 제)(delete) (삭 제)(delete) (삭 제)(delete)
KR1019970000957A 1997-01-15 1997-01-15 Full automatic washing machine KR100215334B1 (en)

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JPS5044482U (en) * 1973-08-20 1975-05-06

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