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:
Aug. 26, 2014
Filed:
Jan. 29, 2013
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Masakazu Kamibayashi, Tokyo, JP;
Haruhiko Hirano, Tokyo, JP;
Tomohiro Numajiri, Tokyo, JP;
Kenji Ito, Yokohama, JP;
Ikuo Honda, Yokohama, JP;
Yoshihiro Fujioka, Nagasaki, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
To provide a nacelle roof structure of a wind turbine generator, where the nacelle roof structure is capable of reducing stress concentration on joints of a roofing member divided into multiple parts to accommodate growing size of a nacelle as well as improving transport efficiency of the roofing member. A nacelle roof structure of a wind turbine generator, with a top face of a nacelle being covered with a plate-type roofing member (), in which the roofing member () has a joining structural portion () in which roof shingles () that divide the roofing member into a plurality of parts in a main-shaft direction are combined and plate couplings provided at opposite ends in the main-shaft direction are fastened together by being laid one on top of another; and two or more of the roof shingles () are equal in cut length in the main-shaft direction.