Internal planetary gear mechanism

Details Internal planetary gear mechanism Internal planetary gear mechanism

2006-07-25

2006-07-25

Bonck, Rodney H. (Department: 3681)

Planetary gear transmission systems or components

Planet periphery surrounds axis of interacting gear

Particular gear tooth

C475S344000

Reexamination Certificate

active

07081063

ABSTRACT:
An internal planetary gear mechanism reduces a load applied to tooth surfaces of an external gear and an internal gear, a sliding portion such as a bearing and the like. By setting the amount of eccentricity α of an eccentric part to be larger than a theoretical value, a distance between the center of the external gear and the center of the internal gear is increased to allow the reduction of a loss in the bearing and on the tooth surfaces of the gears, and a mesh zone between the internal gear and the external gear can be reduced to decrease a part at a large pressure angle, thereby reducing a loss generated by a large pressure angle. As a result of reduction in the mesh zone between the external gear and the internal gear, rolling contact of the gears is maintained.

REFERENCES:
patent: 3165943 (1965-01-01), Sundt
patent: 4922781 (1990-05-01), Peiji
patent: 5226798 (1993-07-01), Eisenmann
patent: 5429556 (1995-07-01), Ishida et al.
patent: 5707310 (1998-01-01), Maeguchi et al.
patent: 07243486 (1995-09-01), None

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