KR200455842Y1 - Double damper for drum washer - Google Patents

Double damper for drum washer Download PDF

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Publication number
KR200455842Y1
KR200455842Y1 KR2020090002054U KR20090002054U KR200455842Y1 KR 200455842 Y1 KR200455842 Y1 KR 200455842Y1 KR 2020090002054 U KR2020090002054 U KR 2020090002054U KR 20090002054 U KR20090002054 U KR 20090002054U KR 200455842 Y1 KR200455842 Y1 KR 200455842Y1
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KR
South Korea
Prior art keywords
felt
damper
washing machine
cylinder pipe
drum washing
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KR2020090002054U
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Korean (ko)
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KR20100008696U (en
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최영철
박찬익
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주식회사 삼코
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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
    • D06F37/22—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 horizontal 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
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined 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
    • 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
    • D06F37/269—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups for the bearing of the rotary receptacle
    • 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
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • 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)
  • Textile Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

본 고안은 드럼 세탁기용 댐퍼에 관한 것으로, 특히 드럼 세탁기 회전 작동시 실린더 파이프 내부에서 왕복운동하여 충격을 완화시켜 진동과 소음을 저감시키면서 회전통의 고저 회전시에 대응하여 댐퍼력이 이중으로 각각 작용하는 드럼 세탁기용 이중댐퍼에 관한 것이다.

이러한 본 고안은 한쪽 선단 샤프트(1)가 고정되는 실린더 파이프(2)와, 이 실린더 파이프(2)의 다른쪽 선단에는 제 1, 2 스프링 시트(3a,3b)를 매개로 스프링(4)으로 탄지되고 실린더 파이프(2) 내부에서 왕복운동하는 마찰재 펠트(5)를 갖춘 로드(6)로 이루어진 드럼 세탁기용 댐퍼에 있어서, 상기 실린더 파이프(2) 내부에 삽입되는 로드(6)에는 이중 펠트를 갖춘 마찰재 펠트(5)가 펠트 케이스(7)내에 삽입되고, 이 펠트 케이스(7)의 양쪽 선단으로 베어링(8a,8b)이 각각 배치되되, 이 베어링 중 로드(6)의 끝단에 배치되는 베어링(8a)은 와셔(9)에 의해 보유 지지되어 있다.

Figure R2020090002054

The present invention relates to a damper for a drum washing machine. In particular, the drum washing machine rotates reciprocally in the cylinder pipe to mitigate an impact to reduce vibration and noise, while correspondingly damping force in response to the high and low rotation of the rotating cylinder. It relates to a double damper for a drum washing machine.

This invention devises a cylinder pipe (2) on which one end shaft (1) is fixed, and a spring (4) via first and second spring sheets (3a, 3b) at the other end of the cylinder pipe (2). In the damper for a drum washing machine, which consists of a rod (6) having a friction material felt (5) which is stiffened and reciprocates in the cylinder pipe (2), the rod (6) inserted into the cylinder pipe (2) has a double felt. The friction material felt 5 with which it is inserted is inserted in the felt case 7, and bearing 8a, 8b is arrange | positioned at the both ends of this felt case 7, respectively, which bearing is arrange | positioned at the end of the rod 6, 8a is hold | maintained by the washer 9. As shown in FIG.

Figure R2020090002054

Description

드럼 세탁기용 이중댐퍼{Double damper for drum washer}Double damper for drum washer

본 고안은 드럼 세탁기용 댐퍼에 관한 것으로, 특히 드럼 세탁기 회전 작동시 실린더 파이프 내부에서 왕복동하여 충격을 완화시켜 진동과 소음을 저감시키면서 회전통의 고저 회전시에 대응하여 댐퍼력이 이중으로 각각 작용하는 드럼 세탁기용 이중댐퍼에 관한 것이다.The present invention relates to a damper for a drum washing machine. In particular, the drum washing machine rotates reciprocating in the cylinder pipe to mitigate an impact, thereby reducing vibration and noise, and correspondingly damping force is applied in response to the high and low rotation of the rotating cylinder. A double damper for a drum washing machine.

드럼 세탁기는 세탁물을 회전시키는 회전통이 3점 또는 2점 방식으로 본체에 지지되어 있으며, 이 회전통의 진동과 충격을 흡수하는 댐퍼가 설치되어 있다.The drum washing machine is supported on the main body by a three- or two-point rotating cylinder for rotating laundry, and is provided with a damper for absorbing the vibration and shock of the rotating cylinder.

이 같이 회전통에 설치되는 댐퍼는 세탁 및 탈수시 회전하는 세탁통의 진동과 충격을 효율적으로 흡수 저감할 수 있을 뿐만 아니라, 댐퍼 자체에서 세탁통을 지지하는 보유 지지력을 제공함으로써 서스펜션과 같은 역할도 겸하게 되어 있다.The damper installed in the rotating container can effectively absorb and reduce vibration and shock of the rotating laundry container during washing and dehydration, and also serves as a suspension by providing a holding force for supporting the washing container in the damper itself. have.

이러한 드럼 세탁기용 댐퍼는 종래에도 다양한 기술이 제안되어 적용되고 있으며, 댐퍼의 원통형 실린더 파이프 내에 댐핑 요소로 오일과 같은 물질을 충전시켜 사용하거나, 실린더 파이프 내에 고무댐퍼를 내장시켜 이 고무댐퍼의 왕복동으로 충격과 진동을 완화시킨 구조로 되어 있었다.The drum washing machine damper has been proposed and applied in various prior art, and is used by filling a material such as oil into the damping element in the cylindrical cylinder pipe of the damper, or by incorporating a rubber damper in the cylinder pipe to the reciprocating motion of the rubber damper. It was structured to mitigate shock and vibration.

그러나 종래 드럼 세탁기용 댐퍼는 오일과 같은 댐핑요소의 적용으로 제조단 가의 상승을 초래하고, 고무댐퍼로서 충격과 진동저감에 큰 효과를 보지 못하여 제품의 고급화에 악영향을 끼치는 단점이 있었다.However, the conventional drum washing machine damper has a disadvantage of causing an increase in manufacturing cost by applying a damping element such as oil, and does not have a great effect on shock and vibration reduction as a rubber damper, which adversely affects the quality of the product.

특히, 종래 댐퍼는 회전하는 세탁통의 고저 회전시에 상관없이 동일하게 고무댐퍼가 실린더 파이프 내에서 왕복동 작용하여 충격과 소음을 저감시키기 때문에 댐퍼의 댐핑력 조절능력을 갖추지 못한 기능력 약점도 지니고 있었다.In particular, the conventional damper had a weakness in the functional force that does not have the damping force control ability of the damper because the rubber damper reciprocates in the cylinder pipe to reduce the impact and noise, regardless of the high and low rotation of the rotating laundry tub.

이에 본 고안은 상기와 같은 종래 문제점을 해결하기 위해 안출된 것으로, 회전하는 세탁통의 진동과 소음을 효과적으로 흡수 저감하면서 세탁통의 고저 회전에 대응하여 댐퍼력이 각각 다르게 작용하여 조절됨에 따라 드럼 세탁기 작용시 정숙함의 향상으로 제품 고급화를 도모할 수 있는 드럼 세탁기용 이중댐퍼를 제공함에 그 목적이 있다.The present invention has been devised to solve the conventional problems as described above, while the damper force is applied to each other in response to the high and low rotation of the laundry while effectively absorbing and reducing the vibration and noise of the rotating laundry tub when the drum washing machine is acting The purpose of the present invention is to provide a double damper for a drum washing machine capable of improving the product quality by improving the quietness.

상기와 같은 목적을 달성하기 위한 본 고안은 한쪽 선단에 샤프트가 고정되는 실린더 파이프와, 이 실린더 파이프의 다른쪽 선단에는 제 1, 2 스프링 시트를 매개로 스프링으로 탄지되고 실린더 파이프 내부에서 마찰재 펠트가 설치된 로드를 갖추어 이루어진 드럼 세탁기용 댐퍼에 있어서, 상기 실린더 파이프 내부에 삽입되는 로드에는 이중 펠트를 갖춘 마찰재 펠트가 펠트 케이스 내에 삽입되어 있으며, 이 펠트 케이스의 양쪽 선단에는 베어링이 각각 배치되고, 이 베어링 중 로드의 끝단에 배치되는 베어링은 와셔를 매개로 체결되며, 다른쪽 베어링은 파이프가 롤링되어 빠짐 방지구조로 지지되고, 로드에 삽입되는 펠트케이스, 베어링이 삽입 후 일정간격으로 이격되어 쿠션용 팩킹이 끼워져 장착되어 있다.The present invention for achieving the above object is a cylinder pipe in which a shaft is fixed to one end, and the other end of the cylinder pipe is supported by a spring through the first and second spring sheets, and a friction material felt inside the cylinder pipe. In the damper for drum washing machine provided with the installed rod, the friction material felt with a double felt is inserted in the felt case in the rod inserted in the said cylinder pipe, The bearing is arrange | positioned at the both ends of this felt case, respectively, and this bearing The bearing placed at the end of the heavy rod is fastened through the washer, and the other bearing is supported by a pipe-rolling prevention structure, a felt case inserted into the rod, and the bearing is spaced at regular intervals after insertion. Is fitted.

상기와 같은 본 고안에 따른 드럼 세탁기용 이중댐퍼는 회전하는 세탁통의 진동과 충격을 효과적으로 저감 및 완화시키며 이 세탁통의 고저 회전에 따라 댐퍼 력 기능이 이중으로 각각 다르게 작용하여 보다 정숙한 드럼 세탁기 제공에 일조를 담당할 수 있는 효과를 지닌다.The double damper for the drum washing machine according to the present invention as described above effectively reduces and alleviates the vibration and impact of the rotating washing machine, and the damper force functions differently depending on the high and low rotation of the washing machine to provide a more quiet drum washing machine. It is effective to take care of the sun.

이하, 본 고안을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail based on the accompanying drawings.

도 1은 본 고안에 따른 드럼 세탁기용 이중댐퍼의 외관 정면 사시도이고, 도 2는 도 1의 길이방향 단면도이며, 도 3은 본 고안의 요부인 로드의 정면도이다.1 is an external front perspective view of a double damper for a drum washing machine according to the present invention, FIG. 2 is a longitudinal cross-sectional view of FIG. 1, and FIG. 3 is a front view of a rod which is a main part of the present invention.

본 고안은 드럼 세탁기의 세탁통에 보유 지지되어 이 세탁통 회전시 진동과 소음을 저감시키는 역할을 수행하는 댐퍼로서, 도면에 도시된 바와 같이 한쪽 선단 샤프트(1)가 고정되는 실린더 파이프(2)와, 이 실린더 파이프(2)의 다른쪽 선단에는 제 1, 2 스프링 시트(3a,3b)를 매개로 스프링(4)으로 탄지되고 실린더 파이프(2) 내부에서 왕복동하는 마찰재 펠트(5)를 갖춘 로드(6)로 이루어진 드럼 세탁기용 댐퍼에 있어서, 상기 실린더 파이프(2) 내부에 삽입되는 로드(6)에는 이중 펠트를 갖춘 마찰재 펠트(5)가 펠트 케이스(7) 내에 삽입되고, 이 펠트 케이스(7)의 양쪽 선단으로 베어링(8a,8b)이 각각 배치되되, 이 베어링 중 로드(6)의 끝단에 배치되는 베어링(8a)은 와셔(9)에 의해 보유 지지되어 있다.The present invention is a damper which is held in a drum of a drum washing machine and serves to reduce vibration and noise during rotation of the drum, and a cylinder pipe (2) on which one front end shaft (1) is fixed as shown in the drawing, At the other end of the cylinder pipe 2, a rod having friction material felt 5 reciprocated inside the cylinder pipe 2 and supported by the spring 4 via the first and second spring sheets 3a and 3b ( In the damper for a drum washing machine consisting of 6), a friction material felt (5) having a double felt is inserted into a felt case (7) in a rod (6) inserted into the cylinder pipe (2), and the felt case (7). Bearings 8a and 8b are respectively disposed at both ends of the wheel, and bearings 8a disposed at the end of the rod 6 of the bearings are held by the washer 9.

그리고 상기 로드(6)에는 펠트 케이스(펠트), 베어링이 삽입 후 일정간격(L)으로 이격되어 쿠션용 팩킹(10)이 끼워 장착되어 있다.And the rod (6) is a felt case (felt), the bearing is spaced at a predetermined interval (L) after insertion, the cushion packing 10 is fitted.

또한, 상기 와셔(9)와 베어링(8a) 사이와, 이 베어링(8a)과 펠트 케이스(7) 한쪽 선단 사이 및, 상기 펠트 케이스(7)의 다른쪽 선단과 다른쪽 베어링(8b) 사이에는 각각 쿠션용 팩킹(10a,10b,10c)들이 소음 방지용으로 각각 장착되어 있다.In addition, between the washer 9 and the bearing 8a, between the bearing 8a and one end of the felt case 7 and between the other end of the felt case 7 and the other bearing 8b. Cushion packings 10a, 10b and 10c are respectively mounted for noise prevention.

상기와 같은 구조를 갖는 본 고안에 따른 드럼 세탁기용 이중댐퍼는 상기 로드(6)의 끝단에 베어링(8a,8b)들과 이중 펠트(5a,5b)로 이루어진 마찰재 펠트(5)가 장착되어 있어서 실린더 파이프(2) 내부에서 세탁통 회전시 작용하는 충격과 진동이 저감 및 완화되는바, 즉 이는 실린더 파이프(2)의 내경면과 로드(6)에 장착된 베어링(8a,8b)과 이중 펠트로 이루어진 마찰재 펠트(5)가 마찰되어 충격과 진동을 흡수하도록 되어 있다.Double damper for a drum washing machine according to the present invention having the structure as described above is equipped with a friction material felt (5) consisting of bearings (8a, 8b) and double felt (5a, 5b) at the end of the rod (6) The shock and vibration acting upon the rotation of the washing tub inside the cylinder pipe 2 are reduced and alleviated, i.e., the inner diameter of the cylinder pipe 2 and the bearings 8a, 8b mounted on the rod 6 and double felts. The friction material felt 5 is rubbed to absorb shocks and vibrations.

특히, 본 고안은 로드(6)의 한쪽 끝단에 설치되는 펠트 케이스(7)와 이중 펠트로 이루어진 마찰재 펠트(5) 및 베어링(8a,8b)들이 이 로드(6)에 고정되지 않고 쿠션용 팩킹(10) 사이에 형성된 간격(L) 만큼 유동이 가능함에 따라 세탁통의 저회전시에는 댐퍼력이 정상적으로 작용하며 소음과 진동을 저감하고, 세탁통의 고회전시에는 댐퍼력이 거의 작용하지 않게 되는 이중 댐퍼력 기능을 갖추게 된다.In particular, the present invention provides a cushioning packing (7) and a bearing (8a, 8b) consisting of a felt case (7) and a double felt that is installed at one end of the rod (6) is not fixed to the rod (6) 10) As the flow can be made by the gap (L) formed between the dampers, the damper force acts normally during low rotation of the washing tub and reduces the noise and vibration, and the damper force is hardly acted upon during the high rotation of the tub. Function.

도 1은 본 고안에 따른 드럼 세탁기용 이중댐퍼의 외관 정면 사시도,1 is an external front perspective view of a double damper for a drum washing machine according to the present invention;

도 2는 도 1의 길이방향 단면도,2 is a longitudinal cross-sectional view of FIG.

도 3은 본 고안의 요부인 로드의 정면도이다.3 is a front view of a rod which is a main part of the present invention.

- 도면의 주요부분에 대한 부호의 설명 --Explanation of symbols for the main parts of the drawings-

1 : 샤프트(Shaft), 2 : 실린더 파이프,1: shaft, 2: cylinder pipe,

3a,3b : 스프링 시트, 4 : 스프링,3a, 3b: spring seat, 4: spring,

5 : 마찰재 펠트, 6 : 로드,5: Felt friction material, 6: Rod,

7 : 펠트 케이스, 8a,8b : 베어링,7: felt case, 8a, 8b: bearing,

9 : 와셔, 10 : 쿠션용 팩킹,9: washer, 10: cushion packing,

10a ~ 10c : 쿠션용 팩킹.10a ~ 10c: Packing for cushion.

Claims (3)

한쪽 선단 샤프트(1)가 고정되는 실린더 파이프(2)와, 이 실린더 파이프(2)의 다른쪽 선단에는 제 1, 2 스프링 시트(3a,3b)를 매개로 스프링(4)으로 탄지되고 실린더 파이프(2) 내부에서 왕복동하는 마찰재 펠트(5)를 갖춘 로드(6)로 이루어지며, 상기 실린더 파이프(2) 내부에 삽입되는 로드(6)에는 이중 펠트를 갖춘 마찰재 펠트(5)가 펠트 케이스(7) 내에 삽입되고, 이 펠트 케이스(7)의 양쪽 선단으로 베어링(8a,8b)이 각각 배치되되, 이 베어링 중 로드(6)의 끝단에 배치되는 베어링(8a)은 와셔(9)에 의해 보유 지지되어 이루어진 드럼 세탁기용 댐퍼에 있어서,The cylinder pipe 2 to which one end shaft 1 is fixed, and the other end of this cylinder pipe 2 are supported by a spring 4 via first and second spring seats 3a and 3b and the cylinder pipe. (2) a rod 6 having a friction material felt 5 reciprocating therein, and a rod 6 inserted into the cylinder pipe 2 includes a friction material felt 5 having a double felt in a felt case ( 7) The bearings 8a and 8b are inserted at both ends of the felt case 7, respectively, and the bearings 8a disposed at the ends of the rods 6 are provided by washers 9, respectively. In the drum washing machine damper is held, 상기 로드(6)에는 베어링(8b)과 일정간격(L)으로 이격되어 쿠션용 팩킹(10)이 끼워 장착되어 이루어진 것을 특징으로 하는 드럼 세탁기용 이중댐퍼.The rod (6) is a double damper for a drum washing machine, characterized in that the cushion (10) spaced apart by a predetermined interval (L) and fitted with a cushion packing 10 is fitted. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 와셔(9)와 베어링(8a) 사이와, 이 베어링(8a)과 펠트 케이스(7) 한쪽 선단 사이 및, 상기 펠트 케이스(7)의 다른쪽 선단과 다른쪽 베어링(8b) 사이에는 각각 쿠션용 팩킹(10a,10b,10c)들이 각각 장착되어 이루어진 것을 특징으로 하는 드럼 세탁기용 이중댐퍼.A cushion between the washer 9 and the bearing 8a, between the bearing 8a and one end of the felt case 7, and between the other end of the felt case 7 and the other bearing 8b, respectively. Double damper for drum washing machine, characterized in that the packing (10a, 10b, 10c) for each made.
KR2020090002054U 2009-02-24 2009-02-24 Double damper for drum washer KR200455842Y1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663291A (en) * 1992-08-20 1994-03-08 Matsushita Electric Ind Co Ltd Drum type washing machine
JP2002139087A (en) 2000-10-31 2002-05-17 Yamaha Motor Co Ltd Buffer
KR20050033237A (en) * 2003-10-06 2005-04-12 엘지전자 주식회사 Damper of washing machine
KR200410220Y1 (en) * 2005-12-16 2006-03-07 주식회사 삼코 Damper structure for drum washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0663291A (en) * 1992-08-20 1994-03-08 Matsushita Electric Ind Co Ltd Drum type washing machine
JP2002139087A (en) 2000-10-31 2002-05-17 Yamaha Motor Co Ltd Buffer
KR20050033237A (en) * 2003-10-06 2005-04-12 엘지전자 주식회사 Damper of washing machine
KR200410220Y1 (en) * 2005-12-16 2006-03-07 주식회사 삼코 Damper structure for drum washing machine

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