Strain wave gear speed reducer unit and power unit
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United States of America Patent
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Nov 23, 2021
Grant Date -
Jul 25, 2019
app pub date -
Jun 22, 2017
filing date -
Jun 24, 2016
priority date (Note) -
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Abstract
A strain wave gear speed reducer unit includes: a casing extending in the axial direction; an internal gear disposed to be rotatable relative to the casing and having internal teeth on the inner circumference; a flexible external gear disposed to the inside of the internal gear in the radial direction, an end of which is fixed to the casing on one side in the axial direction, and which has external teeth on the outer circumference for meshing with the internal teeth; a cam disposed to the inside of the external gear in the radial direction and deforming the external gear in the radial direction by rotating together with a rotating shaft of a motor unit; a connecting part formed integrally with the cam and connected to the rotating shaft on the inside of the external gear; and a support connected to the casing and rotatably supporting the connecting part.
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