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:
May. 05, 2015
Filed:
Mar. 08, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A strain wave gear apparatus includes a rigid internal gear, a flexible external gear, and a wave generator. The wave generator includes an input shaft fixing member including eccentric cams, bearings respectively fixed to outer sides of the eccentric cams, and housings respectively fitted to outer peripheral surfaces of the bearings. The eccentric cams are arranged side by side in a direction of an inclined axis inclined with respect to an input rotation axis at an inclination angle (θ) in a manner that respective center axes of the eccentric cams are parallel to the inclined axis and decentered in directions opposite to each other from the inclined axis. The housings are each formed into a tapered shape so that an outer peripheral surface of each of the housings is held in surface contact with an inner peripheral surface of the flexible external gear.