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:
Jul. 05, 2022
Filed:
Nov. 26, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Yoichi Noda, Suwa-gun Fujimi-machi, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/32 (2006.01); F16H 49/00 (2006.01); B25J 9/10 (2006.01); F16C 33/58 (2006.01); F16C 19/06 (2006.01);
U.S. Cl.
CPC ...
F16H 49/001 (2013.01); B25J 9/102 (2013.01); B25J 9/1025 (2013.01); F16C 19/06 (2013.01); F16C 33/585 (2013.01); F16C 2361/00 (2013.01);
Abstract
A gear device includes an internal gear, a flexible external gear, and a wave generator. The wave generator has an elliptic cam and a bearing. An inner ring has an inner ring raceway surface which a plurality of balls are in contact with, and a pair of inner ring shoulder parts. At a position of a minor axis, a first inner ring shoulder part has a greater height than a second inner ring shoulder part. At a position of a major axis, the second inner ring shoulder part has a greater height than the first inner ring shoulder part.