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:
Nov. 04, 2014
Filed:
May. 16, 2011
Masashi Horiuchi, Nagano, JP;
Akihiro Yokoyama, Nagano, JP;
Naomi Shirasawa, Nagano, JP;
Harmonic Drive Systems, Inc., Tokyo, JP;
Abstract
A unit type wave gear device () has a unit housing (), one end of which is defined by a two-stage cross roller bearing (). The two-stage cross roller bearing () has: an inner cross roller bearing formed by an inner ring (), an intermediate ring (), and inner rollers () inserted into an inner track (); and has an outer cross roller bearing formed by an outer ring (), the intermediate ring (), and outer rollers () inserted into an outer track (). A flexible externally-toothed gear () affixed to the intermediate ring () is rotatably supported by the unit housing () via the outer cross roller bearing. An input shaft () affixed to the inner ring () and a wave generator () affixed to the input shaft () are rotatably supported by the intermediate ring () via the inner cross roller bearing. A unit type wave gear device can be realized in which the number of components are reduced and a large moment load is applied.