Hub assembly of a bicycle and the like

Details Hub assembly of a bicycle and the like Hub assembly of a bicycle and the like

1990-10-15

1991-06-18

Luong, Vinh T.

Machine element or mechanism

Elements

Cranks and pedals

745942, 192 5, G05G 114

Patent

active

050241214

ABSTRACT:
A hub is rotatably supported on an axle. A collar is fixed to one end of the hub. A number of rollers are rotatably supported on an outer surface of a frustum which is formed in the middle of the collar, and contact an inner surface of a sleeve. Two pawls are coupled on the free end of the collar. The sleeve has a ratchet gear formed in an inner surface for engagement with the pawls so that the collar can be driven to rotate unidirectionally by the sleeve. The rollers have a large contact surface so that the sleeve can be stably supported in rotational relationships with the collar.

REFERENCES:
patent: 3578829 (1971-05-01), Hata
patent: 3903754 (1975-09-01), Morroni
patent: 4191488 (1980-03-01), Bickerton
patent: 4358967 (1982-11-01), Kastan
patent: 4758013 (1988-07-01), Agrillo
patent: 4825719 (1989-05-01), Romano
patent: 4883368 (1989-11-01), Stein

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