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:
Oct. 22, 2019
Filed:
Jul. 25, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Masaaki Sakata, Matsumoto, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); B25J 9/10 (2006.01); F16H 55/06 (2006.01); C22C 38/44 (2006.01); C22C 37/00 (2006.01); F16H 49/00 (2006.01); F16H 55/17 (2006.01);
U.S. Cl.
CPC ...
F16H 57/048 (2013.01); B25J 9/1025 (2013.01); C22C 37/00 (2013.01); C22C 38/44 (2013.01); F16H 49/001 (2013.01); F16H 55/06 (2013.01); F16H 57/041 (2013.01); F16H 57/0486 (2013.01); F16H 55/17 (2013.01); F16H 57/0464 (2013.01); F16H 2055/176 (2013.01);
Abstract
A robot includes a first member, a second member provided to be capable of turning with respect to the first member, and a gear device configured to transmit a driving force from one side to the other side of the first member and the second member. The gear device includes internal teeth and external teeth provided halfway in a transmission path of the driving force and configured to mesh with each other and lubricant disposed between the internal teeth and the external teeth. An average grain size of a constituent material of the external teeth is smaller than an average grain size of a constituent material of the internal teeth.