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:
Sep. 26, 2017
Filed:
May. 16, 2014
Applicant:
Harmonic Drive Systems Inc., Shinagawa-ku, Tokyo, JP;
Inventor:
Toshiki Maruyama, Azumino, JP;
Assignee:
HARMONIC DRIVE SYSTEMS INC., Shinagawa-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 49/00 (2006.01); F16H 57/025 (2012.01); F16H 57/029 (2012.01); F16H 57/04 (2010.01);
U.S. Cl.
CPC ...
F16H 49/001 (2013.01); F16H 57/025 (2013.01); F16H 57/029 (2013.01); F16H 57/04 (2013.01); F16H 2049/003 (2013.01);
Abstract
A cup-type hollow strain wave gearing of a hollow actuator has a seal part assembled inside a cup-shaped externally toothed gear. The seal part seals between a boss of the externally toothed gear and a plug of the wave generator so as to prevent lubricant from leaking from the side of the externally toothed gear into a hollow part. Since the seal part employs an oil seal and an O-ring, it is able to be constituted inexpensively and to surely prevent leakage of low-viscosity lubricant.