Sprocket having teeth of improved shape and a cycle free-wheel i

Details Sprocket having teeth of improved shape and a cycle free-wheel i Sprocket having teeth of improved shape and a cycle free-wheel i

1988-03-08

1989-03-21

Neuder, William P.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

474158, 74462, F16H 5530

Patent

active

048139165

ABSTRACT:
Each of the teeth (5) of the sprocket has a Y-shaped top (10) in a view developed along the circumference of the sprocket (5). The principal branch (10a) of the Y extends along the direction (11) of rotation of the sprocket and is located in the central part of the top (10) of the tooth. The two divergent branches (10b, 10c) of the Y are located at the front of the branch (10a) in the direction of rotation of the sprocket. The part of the tooth in the vicinity of the top comprises inclined surfaces which facilitate the reception of a chain on the sprocket. The sprocket is in particular intended for a free-wheel for a cycle providing a plurality of speeds.

REFERENCES:
patent: 4519791 (1985-05-01), Nagaro

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