Bicycle chain wheel assembly and crank arm
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United States of America Patent
Stats
-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Mar 3, 1994
filing date -
Mar 9, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A chain wheel assembly for a bicycle includes a large chain wheel, a small chain wheel, and a crank arm for supporting the chain wheels. The crank arm has an arm body, a boss for connecting the crank arm to a crank axle of the bicycle, and wheel mounting extensions extending radially outwardly from the boss. The small chain wheel is connected to the crank arm through a first connecting device provided on the wheel mounting extensions. The large chain wheel is connected to the small chain wheel through a second connecting device arranged radially outwardly of the first connecting device. The large chain wheel is connected to the crank arm only through the second connecting device and small chain wheel.
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