Endless belt power transmission systems or components – Positive drive pulley or guide roll – And additional coaxial surface for engaging same belt in...
Patent
1994-03-03
1996-01-02
Schoeppel, Roger J.
Endless belt power transmission systems or components
Positive drive pulley or guide roll
And additional coaxial surface for engaging same belt in...
74447, 745942, F16H 5512
Patent
active
054803594
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.
REFERENCES:
patent: 3815439 (1974-06-01), Tarutani
patent: 4009621 (1977-03-01), Segawa
patent: 4380445 (1983-04-01), Shimano
patent: 4439172 (1984-03-01), Segawa
patent: 5085620 (1992-02-01), Nagano
Schoeppel Roger J.
Shimano Inc.
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