Machine element or mechanism – Gearing – Alternating rotary or continuous
Patent
1983-05-26
1988-11-01
Wright, Dirk
Machine element or mechanism
Gearing
Alternating rotary or continuous
74435, F16H 1900, F16H 5517
Patent
active
047810726
ABSTRACT:
A drive shaft continuously rotating in a single direction operates to drive a driven shaft with alternating bidirectional rotative movement through a gear transmission which includes a first gear mounted on the drive shaft and second and third gears mounted on the driven shaft, with the first gear having teeth on only a portion thereof, the teeth alternately engaging the second and third gears as the drive shaft rotates. The gear teeth on the first, second and third gears have a tooth pitch t.sub.0 and the teeth on the second and third gears are offset relative to each other by an arc length measured along the pitch circle of the gear which is not grater than one-fourth of the tooth pitch t.sub.0.
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Institut Straumann AG
Wright Dirk
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