Rear suspension system for bicycles

Details Rear suspension system for bicycles Rear suspension system for bicycles

2009-04-09

2010-02-09

Winner, Tony H. (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S288000

Reexamination Certificate

active

07658394

ABSTRACT:
A rear suspension system includes a bottom bracket integrally connected between two respective first ends of two chain stays and the bottom bracket is engaged with a recess defined between two lugs on the conjunction end of the seat tube and the down tube. The chain stay unit includes two first pivot points and two second pivot points. A first link unit has a first end pivotably connected to the first pivot points and a second end of the first link unit is pivotably connected to one of the two lugs. A second link unit has a first end pivotably connected to the second pivot points and a second end of the second link unit is pivotably connected to the other one of the two lugs. The distance between the bottom bracket and the rear wheel axle is not changed when the rear suspension system is activated.

REFERENCES:
patent: 5628524 (1997-05-01), Klassen et al.
patent: 5957473 (1999-09-01), Lawwill
patent: 6378885 (2002-04-01), Ellsworth et al.
patent: 6843494 (2005-01-01), Lam
patent: 7216883 (2007-05-01), O'Connor
patent: 7392999 (2008-07-01), O'Connor
patent: 7467803 (2008-12-01), Buckley
patent: 7494146 (2009-02-01), Tseng
patent: 7556276 (2009-07-01), Dunlap
patent: 7566066 (2009-07-01), Chang et al.

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