| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a blade structure of a windmill for wind power generation capable of enhancing power generating efficiency by efficiently utilizing a wind given thereto as a rotating drive force. <P>SOLUTION: This blade structure comprises a base 14 supported on a column body 12 rotatably around an abscissa X and a plurality of blades 16 installed on the base 14, radially extending from the base 14, and rotating around the abscissa X by receiving the wind Wd. At least one of the blades 16 has a wind receiving surface 22 generating the force to rotate the blades 16 by receiving the wind Wd and a releasing surface 24 releasing the wind in contact therewith during the rotation of the blades 16. The wind receiving surface 22 is formed on a wind receiving wall 30 including the edge near the surface crossing perpendicular to the direction of the wind Wd and the edge 28 apart from the orthotomic surface Q. The wind receiving surface is formed on a continuous arcuate recessed surface smoothly formed from the edge near the orthotomic surface to the edge apart from that surface. <P>COPYRIGHT: (C)2007,JPO&INPIT |
