Fork release mechanism of bicycle

Details Fork release mechanism of bicycle Fork release mechanism of bicycle

2006-12-18

2009-11-10

Hurley, Kevin (Department: 3611)

Land vehicles

Wheeled

Occupant propelled type

C280S279000

Reexamination Certificate

active

07614631

ABSTRACT:
A release device mounted in a bicycle includes a fork including a socket at a bent portion and two yoke arms extended downward from both sides of the socket to mount a front wheel at distal ends thereof; a sleeve fastened in the socket with an upper portion thereof projecting from the socket, the sleeve including at least one longitudinal top slit; an abutment tube including an upper extension passing a head tube to be threadedly secured to a stem; and a clamp put on an upper portion of the sleeve. The clamp is adapted to either fasten the sleeve and the abutment tube together by contracting the slit by exerting a force in a first direction or unfasten the sleeve and the abutment tube by exerting a force in a second direction opposing the first direction.

REFERENCES:
patent: 3260535 (1966-07-01), Jaulmes
patent: 4647059 (1987-03-01), Shan Hai
patent: 6116629 (2000-09-01), Koppensteiner
patent: 6581492 (2003-06-01), Chen
patent: 6935649 (2005-08-01), Lim
patent: 6984194 (2006-01-01), Ma

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