[특허]Valve structure for damper

[미국특허] Valve structure for damper 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16F-009/348
출원번호	US-0349814 (1994-12-06)
우선권정보	JP-0305598 (1993-12-06); JP-0220606 (1994-09-14)
발명자 / 주소	Tanaka Kazuhiko (Tochigi JPX)
출원인 / 주소	Showa Corporation (Saitama JPX 03)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A valve structure for use in a damper has a cylinder, a piston rod axially movably disposed in the cylinder, a piston or dividing member mounted on an end of the piston rod in the cylinder and dividing an interior space of the cylinder into two oil chambers one on each side of the dividing member, the dividing member having a valve seat, and a circular resilient valve assembly supported at a circumferential edge thereof on the dividing member and having a free end seatable on the valve seat. The circular resilient valve assembly includes a circular auxiliary resilient valve, a circular intermediate resilient sheet, and a circular main resilient valve which have identical inside and outside diameters, the circular auxiliary resilient valve, the circular intermediate resilient sheet, and the circular main resilient valve being stacked in the order named successively from the valve seat. The circular intermediate resilient sheet has at least one recess defined therein and opening at a free end thereof for allowing the circular auxiliary resilient valve to flex. The circular resilient valve assembly can flex depending on a differential pressure between the two oil chambers to produce a damping oil path for applying a damping force against axial movement of the piston rod with respect to the cylinder.

대표청구항 ▼

A hydraulic damper, comprising: a cylinder; a piston rod axially movable in said cylinder; a dividing member mounted on an end of the piston rod and dividing an interior space of the cylinder into first and second fluid chambers, one on each side of the dividing member, the dividing member having passages to permit the passage of fluid between the first and second chambers and a valve seat; an annular, resilient valve assembly having inner and outer circumferential edges, one of the circumferential edges being fixed with respect to the dividing member, the other of the circumferential edges being free and seatable on said valve seat; the valve assembly comprising an annular auxiliary resilient valve, an annular intermediate resilient sheet and an annular resilient main valve, said annular auxiliary resilient valve, said annular intermediate resilient sheet and said annular resilient main valve being stacked in the order named from said valve seat; the free circumferential edge of the annular intermediate resilient sheet being interrupted by at least one recess which opens from the free circumferential edge; the annular auxiliary resilient valve, the annular intermediate resilient sheet and the annular resilient main valve having identical overall inside and outside circumferential edge diameters except at the recess; whereby said annular resilient valve assembly can flex away from the valve seat depending on a differential pressure between the first and second chambers to produce a damping oil path for applying a damping force against axial movement of said piston rod with respect to said cylinder, the recess in the free circumferential edge of the annular intermediate resilient sheet allowing a portion of the annular auxiliary resilient valve to flex away from the valve seat to produce a damping oil path independently of the remainder of the valve assembly.

이 특허를 인용한 특허 (35) 인용/피인용 타임라인 분석

Schuitema Franklin M. ; Long Dennis L., Damping cylinder.
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Kais, Saadeddin, Damping element.
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Naito, Tutomu, Damping force adjusting structure of hydraulic shock absorber.
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Nezu Takashi,JPX ; Makita Naoki,JPX, Damping force control type hydraulic shock absorber.
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Park, Kyu Shik, Damping force variable shock absorber.
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Heo, Jin-Hyuck, Damping force-variable shock absorber.
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Morita, Yuji, Damping mechanism.
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Dodge, Dean R., Floating port blocker.
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Turner, Paul H., Fluid damped shock absorber and method.
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Oshie, Yuki; Itsubo, Noriyuki; Tanabe, Yasuyuki, Hydraulic shock absorber and valve.
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Hall,Andrew F.; Hilton,Mike W.; McClelland,Jason A.; Pichon,Vincent Guy; Stacey,Scott Alan; Raypole,Steven K.; Brinkman,Todd J., Low noise linear actuator.
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De Kock, Paul, Nonreturn valve for a shock absorber.
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Lawler, Tim; Rummel, Chad; Robbins, Elizabeth; Keil, Daniel T.; Paenhuysen, Jeroen K.; McGahey, John; Zhang, Dajun, Orifice disc for regulating flow in damper.
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De Carbon Roland Bourcier,FRX ; Charleux Eric,FRX, Piston with floating valve for hydraulic damper tube, especially one of the monotube type.
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Mintgen, Rolf; Fuhrmann, Castor, Piston-cylinder assembly with braking device.
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Mizuno, Kazuyuki; Kamae, Ryousuke; Hata, Hideki; Matsumura, Sadatomo, Shock absorber.
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Chang,Lien Sheng, Shock absorber for a remote-controlled model car.
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Kim, Nam Ho, Shock absorber for railway vehicle.
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Rummel, Chad, Shock absorber having check disc for orifice passage.
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Daniel Keil, Shock absorber having ported plate low speed tunability.
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Teraoka, Takashi; Masamura, Tatsuya, Shock absorbing device.
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Jee, Young Hwan, Solenoid valve of shock absorber.
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Farris Mark S. ; Harrison Michael A. ; Loftus John M. ; Taylor Aaron K. ; Mack Christoph E. ; Collins Ross P., Suspension assembly for a vehicle.
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Farris Mark S. ; Harrison Michael A. ; Loftus John M. ; Taylor Aaron K. ; Mack Christoph E. ; Collins Ross P., Suspension assembly for a vehicle.
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Miwa, Masahiro; Hoshino, Yuta, Valve.
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Wolfgang Rothe,DEX ; Rennecke Dirk,DEX ; Mintgen Rolf,DEX, Valve.
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Maeda, Atsushi, Valve apparatus.
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Kobayashi, Yukimasa; Takeuchi, Hideaki; Shibata, Yoshihiro, Valve structure.
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Moradmand, Jamshid K.; Knapczyk, Marcin; Neal, Robert A., Variable area low speed orifice in a vehicle damper.
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Keil, Daniel; Bombrys, Timothy; Kazmirski, Karl, Variable bleed orifice valving.
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Rummel, Chad, Variable radius spring disc for vehicle shock absorber.
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Rummel, Chad, Variable radius spring disc for vehicle shock absorber.
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Vanbrabant, Ronny; Diels, Bert; Tuts, Jean-Marie; Bailly, Vincent; Six, Kristoff, Velocity progressive valving.
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Grundei Manfred,DEX, Vibration damper with restrictor plate.
상세보기
Pfaffenzeller, Peter; Stein, Heinrich; Hauke, Mirco; Strobl, Hubert, Vibration damping method.
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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

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[미국특허] Valve structure for damper 원문보기