Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1980-05-15
1983-01-25
Dorner, Kenneth
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74411, 74781R, F16H 374
Patent
active
043696740
ABSTRACT:
A light, miniaturized power transmission device of the type wherein the power from a drive shaft is transmitted to a driven shaft via a planetary gear mechanism. The planetary gear mechanism has a ring gear, a sun gear disposed concentrically on the radially inner side of the ring gear, and planetary gears disposed between and engaged with the sun gear and the ring gear. At least the meshing portions of the planetary gears, ring gear and sun gear are resiliently held from opposite side surfaces thereof by a pair of side plates attached to said planetary gear mechanism. The side plates permit free orbital movements of the planetary gears and suppresses the relative axial movements of the ring gear, planetary gears and sun gear. A centrifugally operated friction clutch is disposed between the drive shaft and the planetary gear mechanism so as to control the transmission of power from the drive shaft to the planetary gear mechanism. The clutch comprises an annular outer contactor integrally formed with the ring gear, and inner contactors which are connected to the drive shaft for rotation therewith and adapted to be placed under a centrifugal force into frictional contact with the annular outer contactor to thereby transmit the rotation of the drive shaft to the ring gear when the number of revolutions of the drive shaft exceeds a predetermined level.
REFERENCES:
patent: 2077387 (1937-04-01), Banker
patent: 2189220 (1940-02-01), Osborne
patent: 2649817 (1953-08-01), Voque
Hamane Masumi
Kondo Makoto
Dorner Kenneth
Honda Giken Kogyo Kabushiki Kaisha
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