[특허]Friction damper, in particular for washing machines with spin cycle

Friction damper, in particular for washing machines with spin cycle 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16F-007/08
출원번호	US-0841682 (1986-03-19)
우선권정보	DE-8508931 (1985-03-26); DE-3604286 (1986-02-12)
발명자 / 주소	Bauer Hans-Peter (Altdorf DEX) Bauer Hans J. (Altdorf DEX) Stadelmann Ludwig (Altdorf DEX)
출원인 / 주소	Fritz Bauer +Shne oHG (Altdorf DEX 03)
인용정보	피인용 횟수 : 16 인용 특허 : 0

초록 ▼

A friction damper, especially for washing machines with a spin cycle, consists of a housing (1) having a substantially circular cylindrical inner wall and a tappet (2) that can be pushed coaxially into the housing, extending at one end out of the housing and at the other end being provided with a friction piston. The friction piston is provided with friction elements pressed elastically against the inner wall of the housing (1), and securing elements (4, 8) are formed on the respective ends of the tappet (2) and housing (1). To attain a considerable reduction in the damping forces once there has been a passage through the critical rpm level, the housing (1) is made of plastic.

대표청구항 ▼

A friction damper, for a washing machine with a spin cycle, consisting of a housing (1, 1′) having a substantially circular cylindrical inner wall (24) with a diameter D, and tappet (2) having a hole extending therethrough, said tappet being insertable coaxially into and extending with one end out of the housing (1, 1′) and provided on its other end with a friction piston (14), wherein the friction piston (14) is provided with a friction element of elastic foamed material with closed pores pressed elastically against the inner wall (24) of the housing (1, 1′), said friction piston being made in one piece with at least one pair of bracing flanges, a circular seating surface being located between the at least one pair of bracing flanges, said seating surface receiving and holding said friction element, and wherein securing elements are formed on the respective free ends of the tappet and housing, characterized in that the housing (1, 1′) is molded in one piece of plastic and has a wall thickness of 2.0-3.0 mm, said plastic being a homopolymer or a polyacetal having a heat expansion coefficient on the order of magnitude of 1.1×10-4/°C., said plastic housing constituting friction reducing means for reducing friction between said friction element and said inner wall when the washing machine reaches a spin rpm by generating substantial heat from vibration due to friction during passage from a wash rpm to the spin rpm, the heat so generated causing a significant increase in the diameter D of said housing, the hole extending through said tappet comprising cooling means for cooling said friction piston by the flow of cooling air through said tappet so as to prevent heating of said friction piston and significant enlargement of the diameter of said friction piston.

이 특허를 인용한 특허 (16)

J. David Carlson, Controllable medium device and apparatus utilizing same.
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Mayer, Dieter; Siegner, Helge, Coupling device for coupling a frictional damper to a machine frame of a washing machine.
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Richard P. Thorn ; Samson Beyene, Damper including resilient friction member and seat assembly using same.
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Kim, Dae Hyun, Device for fixing a wall-mounted drum type washing machine.
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Bauer Hans J. (Altdorf DEX) Bauer Hans-Peter (Altdorf DEX) Stadelmann Ludwig (Altdorf DEX), Double-damped gas spring with friction liner and sealing ring.
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Kawabata, Shinichiro; Tatsumi, Hisao; Yabuuchi, Takeyuki, Drum washing machine.
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Taylor Paul H. (Grand Island NY), Fluid shock absorber constructions.
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Dillmann, Gerold; Nguyen, Ba Loc; Nenning, Peter, Friction damper, particularly for drum washing machines.
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Bauer Hans-Peter (Altdorf DEX) Bauer Hans J. (Altdorf DEX) Stadelmann Ludwig (Altdorf DEX) Mayer Dieter (Sulzbach-Rosenberg DEX), Frictional damper.
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Rainer Sauer DE; Reiner Weber DE, Length adjustable column with axial bearing, and method of installation of the axial bearing.
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Durazzani Piero,ITX ; Valent Lucio,ITX, Method for providing active damping of the vibrations generated by the washing assembly of washing machines and washing.
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Handke, Günther; Schulz, Markus, Mount for a vibration damper.
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Houser,Marvin Joseph; Knopp,Joseph A.; Bedard,Gerard, Multi-component isolation damping system for a laundry washing machine.
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Thorn, Richard P.; Beyene, Samson, Seat assembly including resilent friction member.
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Jae Won Chang KR; Jin Sang Hwang KR, Suspension apparatus of washing machine.
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Carlson J. David, Washing machine having a controllable field responsive damper.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Friction damper, in particular for washing machines with spin cycle 원문보기

초록 ▼

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Friction damper, in particular for washing machines with spin cycle 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (16)

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