Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1984-11-28
1986-12-16
Staab, Lawrence
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74781B, F16H 344
Patent
active
046287698
ABSTRACT:
A speed change hub for a bicycle includes a driving member, a ring gear rotatable in association with the driving member and having first transmitting members for transmitting a driving force to a hub shell, and a gear frame having planetary gears engageable with inner teeth of the ring gear. The hub also includes a sun gear disposed on a hub shell and having second transmitting members for transmitting the driving force to the hub shell, and a relay member rotatable in association with the driving member. The relay member includes third transmitting members for transmitting the driving force to the gear frame, is supported axially slidably to the hub shaft, and has a first clutch for controlling the first transmitting members to engage or disengage from the hub shell. The hub shaft axially slidably supports an actuator in operative engagement with an operating rod and has a second clutch for controlling the third transmitting members to engage or disengage from a gear frame. A transmitting member for transmitting sliding motion of the actuator to the relay member after the second clutch disengages the third transmitting members is provided between the actuator and the relay member, so that the relay member is caused to slide after the third transmitting members disengage, thereby disengaging the first transmitting members from the hub shell by operation of the first clutch.
REFERENCES:
patent: 3057227 (1962-10-01), Schwerdhofer
patent: 3172305 (1965-03-01), Schwerdhofer
patent: 3828627 (1974-08-01), Schwerdhofer
patent: 4069725 (1978-01-01), Segawa
Belisario Martin G.
Shimano Industrial Company Limited
Staab Lawrence
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