The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2021
Filed:
Feb. 13, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Yuya Kataoka, Chino, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 49/00 (2006.01); F16H 55/08 (2006.01); B25J 9/10 (2006.01); F16C 27/06 (2006.01);
U.S. Cl.
CPC ...
B25J 9/1025 (2013.01); F16C 27/066 (2013.01); F16H 49/001 (2013.01); F16H 55/0833 (2013.01); F16C 2322/59 (2013.01); F16C 2361/61 (2013.01);
Abstract
A gear device includes an internal gear, an external gear partially meshing with the internal gear, relatively rotating around a rotation axis to the internal gear, and having flexibility, and a wave generator being in contact with an inner circumferential surface of the external gear and moving a meshing position of the internal gear and the external gear in a circumferential direction about the rotation axis, wherein a virtual straight line as an extension of a tooth trace of the internal gear intersects with the rotation axis in a sectional view cut along a plane containing the rotation axis.