IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0339141
(1989-04-17)
|
| 우선권정보 |
DE-3813402 (1988-04-21) |
|
발명자
/ 주소 |
- Pohlenz Hans (Boppard DEX) Wagner Gnter (Nrtershausen DEX)
|
| 출원인 / 주소 |
- Stabilus GmbH (Koblenz-Neuendorf DEX 03)
|
| 인용정보 |
피인용 횟수 :
25 인용 특허 :
0 |
초록
▼
In an illustrative example, an oscillation damper for damping the steering movement of the handle bar of a motorcycle comprises a cylinder and a piston rod axially movable with respect to the cylinder. A damping piston is provided at the inner end of the piston rod and divides the cavity within the
In an illustrative example, an oscillation damper for damping the steering movement of the handle bar of a motorcycle comprises a cylinder and a piston rod axially movable with respect to the cylinder. A damping piston is provided at the inner end of the piston rod and divides the cavity within the cylinder into two working chambers. These working chambers are interconnected by at least one axial bore through the piston. Valve discs are provided on both axial end faces of the piston. These valve discs are fixed to the piston in their respective central areas. Circumferential areas of the valve discs define circumferential gaps with the respective end faces. In response to the velocity of axial relative movement of the piston rod with respect to the cylinder the circumferential areas of respective valve discs are approached to the respective end faces. So the damping resistance is increased.
대표청구항
▼
An oscillation damper comprising a cylinder member having an axis and defining a cavity (4, 5, 8) therein, and further comprising a piston rod member (3) axially movable with respect to said cylinder member (1) inwards and outwards of said cavity (4, 5, 8), at least two compartments (4, 5) being pro
An oscillation damper comprising a cylinder member having an axis and defining a cavity (4, 5, 8) therein, and further comprising a piston rod member (3) axially movable with respect to said cylinder member (1) inwards and outwards of said cavity (4, 5, 8), at least two compartments (4, 5) being provided within said cavity (4, 5, 8), said compartments (4, 5) containing a damping liquid and being interconnected by a damping valve unit (2, 6, 9, 10), throttled flow of liquid occurring through said damping valve unit (2, 6, 9, 10) as a response to axial movement of said piston rod member (3) with respect to said cylinder member (1), the throttling effect of said damping valve unit (2, 6, 9, 10) being increased in response to increasing movement velocity of said axial movement such as to provide an increased damping resistance to said axial movement in response to said increasing movement velocity, said damping valve unit (2, 6, 9, 10) comprising a carrier member (2) and two resilient valve discs (9, 10), overlying two axially oppositely directed faces (21, 22) of said carrier member (2), each of said valve discs (9, 10) having a central portion (9a, 10a) attached to the respective face (21, 22) of said carrier member (2), and a circumferential portion (9b, 10b) spaced from the respective face (21, 22) at zero movement velocity, at least one valve bore (6) extending through said carrier member (2) between said compartments (4, 5) and having respective openings towards respective compartments (4, 5) within the respective face (21, 22) and below the respective circumferential portion (9b, 10b) of the respective resilient valve disc (9, 10), wedge-shaped circumferential gaps being defined at zero velocity between the respective face (21, 22) and the respective circumferential portion (9b, 10b) of the respective resilient valve discs (9, 10), said wedge-shaped circumferential gaps being in communication with each other through said at least one valve bore (6) and with the respective compartment (4, 5) at zero movement velocity, said communication being at least partially closed at increasing movement velocity by the respective circumferential portion (9b, 10b) approaching the respective face (21, 22) in response to increasing liquid flow velocity between said compartments (4, 5), said circumferential portion (9b, 10b) of each one of said resilient valve discs (9, 10) being biased towards its zero movement velocity position by at least one support pin (11) movably accommodated by a respective guide bore (23) through said carrier member (2), said support pin (11) being longer than the distance between said faces (21, 22) and engaging both valve discs (9, 10), said at least one valve bore (6) being free of axial support-means for said resilient valve discs (9, 10), said at least one guide bore (23) being substantially closed for liquid flow by said support pin (11).
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