Strain wave gearing
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United States of America Patent
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Oct 24, 2017
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app pub date -
Jul 25, 2013
filing date -
Jul 25, 2013
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Abstract
A flat strain wave gearing device equipped with: a first internal gear and a second internal gear; a flexible tubular external gear; and an elliptically shaped wave generator. In the direction of a central axis, the center of support of the external teeth by the wave generator is offset, by an offset amount of Δ along the direction of the central axis, with respect to the tooth-width center of the external teeth of the external gear. By setting the offset direction and the offset amount appropriately it is possible to achieve a strain wave gearing device which is suitable in terms of the operating conditions and the mechanical characteristics of the first and second internal gears.
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