Multiple speed hub for a bicycle with centrifugally controlled s

Details Multiple speed hub for a bicycle with centrifugally controlled s Multiple speed hub for a bicycle with centrifugally controlled s

1977-08-01

1980-10-28

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74810, 192103B, F16H 374, F16H 552

Patent

active

042299977

ABSTRACT:
Two transmission members of a planetary gear transmission in a hub of a driven vehicle wheel are driven simultaneously at different speeds in a forward or backward direction. Driven forward movement of the slower transmission member is transmitted to the hub shell by an overrunning clutch. A second clutch connects the other transmission member to the hub shell when operated by a centrifugal governor at a certain rotary speed. A control device responds to backward rotation of the transmission members, as by back-pedaling, for overriding the governor and for operating the second clutch independently of the rotary speed.

REFERENCES:
patent: 3438283 (1969-04-01), Schwerdhofer
patent: 3546971 (1970-12-01), Schwerdhofer
patent: 3600974 (1971-08-01), Schwerdhofer
patent: 3603178 (1971-09-01), Schwerdhofer
patent: 3648809 (1972-03-01), Schwerdhofer
patent: 3701292 (1972-10-01), Schulz

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