Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent
1998-05-01
2000-11-14
Schwartz, Chris
Brakes
Internal-resistance motion retarder
Having a thrust member with a variable volume chamber
280272, 280276, 280279, B62K 2112
Patent
active
061456373
ABSTRACT:
A steering damper particularly for mountain bicycles of the type having a steer-tube including a cylinder having closures at the ends filled with oil of high viscosity. Within the cylinder there are a dam and vanes. The steering damper is integrated with the steer-tube and with the handlebars and steer-stem. The vanes of the steering damper are connected to the frame and are fixed. The housing and dam connected internally to the housing are disposed in, and connected to, the steer-tube so that when the handlebars are rotated, the housing and dam are rotated relative to the vanes. When the handlebars are being displaced from center, pressure is applied to the oil between the dam and a vane and the movement is damped. On the return stroke of the handlebars, the one-way valve in the vane involved is open, the oil between the dam and the vane is discharged, pressure is reduced and the damping is suppressed.
REFERENCES:
patent: 4566712 (1986-01-01), Motrenec
patent: 4773514 (1988-09-01), Gustafsson
patent: 5308099 (1994-05-01), Browning
patent: 5359910 (1994-11-01), Chang et al.
patent: 5516133 (1996-05-01), Motrenec et al.
patent: 5540457 (1996-07-01), Johnson
patent: 5836213 (1998-11-01), Hopey
patent: 5927740 (1999-07-01), Hopey
Diamond Hymen
Schwartz Chris
LandOfFree
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