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. 17, 2017
Filed:
Jun. 16, 2015
Nabtesco Corporation, Tokyo, JP;
Osamu Nohara, Gifu, JP;
Yuichi Asakawa, Gifu, JP;
NABTESCO CORPORATION, Tokyo, JP;
Abstract
A rotation driving mechanism for windmill () includes an annular track part (), a rotation driving part (), and a plurality of swinging parts (). The annular track part () is disposed on one of a base-side structure and a rotation-side structure, and has a track wall part () and first teeth (). The rotation driving part () is fixed on the other of the base-side structure and the rotation-side structure. Each swinging part () has a swinging part body () and second teeth (). When a rotating shaft () of the rotation driving part () is rotated so that the swinging parts () are swung with maintaining a predetermined phase difference thereamong, the swinging parts () are relatively moved with respect to the annular track part ().