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:
Dec. 24, 2024
Filed:
Dec. 14, 2022
Applicant:
Nabtesco Corporation, Tokyo, JP;
Inventors:
Mamoru Hagane, Tokyo, JP;
Yoshiaki Makizoe, Tokyo, JP;
Takahide Kumagai, Tokyo, JP;
Yusuke Nakashima, Tokyo, JP;
Assignee:
NABTESCO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J 9/10 (2006.01); B25J 17/02 (2006.01); F16H 1/32 (2006.01); F16H 19/08 (2006.01); F16H 57/02 (2012.01);
U.S. Cl.
CPC ...
B25J 9/10 (2013.01); B25J 17/0258 (2013.01); F16H 1/32 (2013.01); F16H 19/08 (2013.01); F16H 2057/02026 (2013.01); F16H 2057/02073 (2013.01);
Abstract
An eccentric oscillation gear device includes a casing, a first member supported by the casing via a first bearing, a second member supported by the casing via a second bearing, and a fastening portion fastening the first and second members in an axial direction of the casing. The fastening portion includes an internally threaded portion formed in the first member, and a fastener having an externally threaded portion. The fastener has a Rockwell hardness (HRC) of 44 or higher, and the internally threaded portion has a lower hardness than the fastener.