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. 11, 2011
Filed:
Jul. 22, 2010
Naota Watanabe, Tokyo, JP;
Naota Watanabe, Tokyo, JP;
Abstract
The subject of the present invention is to provide a blade end portion protecting bag which is fit onto an end portion of a plurality of blades for protecting the blade end portion from damage when the plurality of the blades are hoisted with a rotor head to the position of an upper nacelle in assembling a wind turbine, the protecting bag having such structure that a rope joint for connecting a control rope is hard to break and therefore the durability of the rope joint portion is improved; and a rotor installing method for installing the rotor to the nacelle with the protecting bag fit onto the blade. A blade end portion protecting bag which is fit onto an end portion of a plurality of blades in installing the bladesto the nacelle supported on the top of a tower, the protecting bag comprising an end bagfit onto the end portion of at least one of a plurality of the bladesto cover the same in a predetermined length from the end of the blade, at least two belt-like memberstodisposed to radiate from a center portion P and fixed to the outer surface of the end bagin its circumference, wherein the belt-like members are bunched up at the center portion, and a control rope is connected to the belt-like members at center portion P.