Three speed transmission hub

Details Three speed transmission hub Three speed transmission hub

1976-01-19

1978-01-24

Scott, Samuel

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

192 6A, 74781B, F16H 344, F16H 5710

Patent

active

040697258

ABSTRACT:
A three speed transmission hub for a bicycle, which is adapted to allow a gear frame with planetary gears and a ring gear with inner teeth in mesh with the planetary gears to be axially movable with respect to a hub shaft and is provided between the gear frame and a drive member with a clutch means engageable only in high speed transmission so that the high speed transmission may be exactly carried out. Relay pawls are provided between the ring gear and the drive member through which the drive force can, in medium speed transmission, be conveyed from the drive member to the ring gear exclusive of the gear frame which is thereby relieved.

REFERENCES:
patent: 3166171 (1965-01-01), Schwerdhofer et al.
patent: 3432013 (1969-03-01), Matsumoto
patent: 3608683 (1971-09-01), Fujisawa
patent: 3648809 (1972-03-01), Schwerdhofer
patent: 3908807 (1975-09-01), Ozaki et al.
patent: 3995503 (1976-12-01), Schulz

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