Bicycle with a long stroke suspension

Details Bicycle with a long stroke suspension Bicycle with a long stroke suspension

1993-03-29

1997-08-19

Tyson, Karin L.

Land vehicles

Wheeled

Occupant propelled type

280275, 280283, 280284, 474140, B62K 2504, B62K 2528

Patent

active

056580010

ABSTRACT:
A swing arm is pivoted to the pedal housing of the bicycle frame and extends rearwardly from the seat post. The rear bicycle wheel is carried by the rear end of the swing arm. A follower is guided and is moveable along the seat post for up and down movement. A brace arm interconnects the swing arm rear end and the follower and an elastic tension cord biases the follower towards the pedal housing. The bicycle has also a front suspension. The front wheel carrying fork of the bicycle is telescopic and upward movement of the front wheel causes elongation of an elastic tension cord. A stabilizer system is also provided whereby upward movement of the front wheel causes upward movement of the rear wheel and vice and versa. Finally, a damper prevents any up-and-down oscillation of the bicycle frame. This damper includes a collapsible, resilient chamber carried by the bicycle frame and a string attached to the chamber and to the swing arm in the rear suspension and to the lower telescopic fork part in the front suspension. Downward movement of the suspension is slowed down upon string tensioning and consequent collapse of the chamber and air expulsion through a chamber bleed hole.

REFERENCES:
patent: 452073 (1891-05-01), Huelsen et al.
patent: 706058 (1902-08-01), Horack
patent: 4997197 (1991-03-01), Shultz

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