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US 9,228,651 B2Granted
Compact torque-transmitting gearbox with high reduction ratio
OwnerWilliam Martin Waideinventor
Life of this patent
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Abstract
A harmonic drive has an outer gear, an elliptical follower hub, and an outer chain coupled to the follower hub, and having teeth that mate with the outer gear. Preferred embodiments further include an inner chain disposed such that the follower hub is functionally interposed between the inner and outer chains.
Claims5
A harmonic drive comprising:
- a fixed circular outer ring gear having inwardly facing ring gear teeth;
- an elliptical follower hub having projecting splines;
- and
- an outer chain having (a) inner surface indentations disposed to mesh with the
- projecting splines, and (b) outer surfaces projections disposed to mesh with ring gear teeth.
2 more elements
Dependencies are inferred from the claim text.