Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1981-08-24
1982-07-13
Staab, Lawrence J.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
F16H 128
Patent
active
043388310
ABSTRACT:
The gear reduction system is of the differential type utilizing two ring gears with teeth on their inner circumference and first and second eccentric wheels having external teeth engaging the teeth on the ring gears as they roll about the inner circumference. The first and second wheels have their eccentricities mounted in an offest relationship so as to provide dynamic balancing during operation. By making the number of teeth on one of the eccentric wheels different from the number of teeth on the other, adding the second ring gear and providing appropriate pin carrier means coupled in a given arrangement, a very high gear reduction can be achieved in a single packaging. This gear reduction is equivalent to that heretofore only obtainable by ganging together separate reduction gear systems of this type.
REFERENCES:
patent: 1833648 (1931-11-01), Johnson
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patent: 2884815 (1959-05-01), Pittman
patent: 3028513 (1962-04-01), Sundt
patent: 3144791 (1964-08-01), Menge
patent: 3217564 (1965-11-01), Smith
patent: 3448638 (1969-06-01), Zahlaus
patent: 3965774 (1976-06-01), Omi et al.
patent: 4177695 (1979-12-01), Grove
Pastoriza Ralph B.
Staab Lawrence J.
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