Rear bicycle suspension

Details Rear bicycle suspension Rear bicycle suspension

2005-05-03

2005-05-03

Boehler, Anne Marie (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S283000

Reexamination Certificate

active

06886846

ABSTRACT:
A rear bicycle suspension has a main frame including a seat riser tube, a down tube, head tube, and a bottom bracket housing having left and right sides, a guide arm and a shock mount attached to the main frame, a pair of swing arm assemblies each one in pivotal attachment on either side of the main frame at a first pivot point and to a bell crank at a second pivot point, the swing arms in rearward extension form the first and second pivot points to at least one rear swing arm attachment point, and further including a lever arm connected between the first and the second pivot points, a guide arm having first and second ends wherein the first end in pivotal attachment to the guide arm bracket at a fifth pivot point and the second end extends upward and rearward from the fifth pivot point, wherein the bell crank is pivotally connected between the lever arms at the second pivot point and to the guide arm at a third pivot point, a shock absorbing member in pivotal attachment at one end to the shock mount and at another end at a fourth pivot point to the bell crank.

REFERENCES:
patent: 4505492 (1985-03-01), Tsunoda
patent: 4789174 (1988-12-01), Lawwill
patent: 5226674 (1993-07-01), Buell et al.
patent: 6164676 (2000-12-01), Wilcox
patent: 6170845 (2001-01-01), Tseng

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