Gear crank for a bicycle
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United States of America Patent
Stats
-
Nov 17, 1981
Grant Date -
N/A
app pub date -
Jun 11, 1979
filing date -
Jun 12, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A gear crank for a bicycle comprises a crank shaft, a pair of crank arms and at least one chain gear, the crank shaft carrying at its one axial end one of the crank arms and a larger diameter portion onto which the chain gear is connected not-rotatably with respect to the crank shaft.
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