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US 10,895,306 B2Granted
Eccentrically oscillating type reduction gear
AssigneeSumitomo Heavy Industries, Ltd.
InventorsMitsuhiro Tamura, Akira Yamamoto
Life of this patent
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Abstract
An eccentrically oscillating type reduction gear includes an internal gear, an external gear which meshes with the internal gear, and an eccentric body which oscillates the external gear. The external gear is formed of a resin, and the internal gear has an internal gear main body which is formed of a resin, and an outer pin which is rotatably disposed in a pin groove provided in the internal gear main body and is formed of a material having a thermal conductivity higher than that of the resin constituting the internal gear main body.
Claims20
An eccentrically oscillating type reduction gear comprising:
- an internal gear;
- an external gear which meshes with the internal gear;
- and
- an eccentric body which oscillates the external gear,
- wherein the external gear is formed of a resin, and
- wherein the internal gear comprises:
- an internal gear main body which is formed of a resin, and
- an outer pin which is rotatably disposed in a pin groove provided in the internal gear main body and is formed of a material having a thermal conductivity higher than that of a material constituting the internal gear main body.
5 more elements
Dependencies are inferred from the claim text.