Bicycle freewheel

Details Bicycle freewheel Bicycle freewheel

1996-09-06

1998-10-06

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Velocipede free wheel

192 46, F16D 4130

Patent

active

058163778

ABSTRACT:
A bicycle freewheel includes an outer cylinder part, an inner cylinder part disposed radially inwardly of the outer cylinder part so that the inner cylinder part is capable of rotation relative to the outer cylinder part, and a one-way transmission disposed between the outer cylinder part and the inner cylinder part. The one-way transmission engages the inner surface of the outer cylinder part and transmits rotation between the outer cylinder part and the inner cylinder part in only one direction. The outer cylinder part includes inner and outer surfaces. The outer surface is shaped with outer concave portions and outer convex portions for supporting a plurality of gears so that the plurality of gears do not rotate relative to the outer cylinder part. The inner surface is shaped with inner concave portions and inner convex portions, wherein the outer concave portions on the outer surface form the inner convex portions on the inner surface. A thickness of at least one of the outer cylinder part or the inner cylinder part is substantially uniform.

REFERENCES:
patent: 3772932 (1973-11-01), Nagano
patent: 3900088 (1975-08-01), Ozaki
patent: 3972245 (1976-08-01), Allen
patent: 5117954 (1992-06-01), Iga
patent: 5125489 (1992-06-01), Cha
patent: 5642796 (1997-07-01), Tabe
European search report for EP 96 30 6559, dated Dec. 12, 1996.

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