| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that an enlargement of the size of a wind power generation device causes a noise problem, makes the transportation, installation and maintenance difficult, causes cost increase and increases danger of collapse and destruction at the time of strong wind such as a typhoon. <P>SOLUTION: A blade body consists of a plurality of partial blades and each of them can be rotated in the width direction by connecting with the shaft and angle can be adjusted. The device is made into foldable structure and the height of the tower can also be expanded and contracted. <P>COPYRIGHT: (C)2004,JPO |
