BLADE OF WINDMILL AND VERTICAL AXIS WINDMILL

摘要

PPROBLEM TO BE SOLVED: To provide blades of a windmill easily attaining accuracy in manufacturing, hardly generating an outward warp of upper and lower ends of the blades due to centrifugal force and capable of changing a wind receiving area of the blades at an installation site of the windmill, and to provide a vertical axis windmill having the blades. PSOLUTION: The blades 8 are arranged on a peripheral part of a rotating body 4 of the vertical axis windmill, and comprised of main body parts 9 and mounting support bodies 10 arranged in left side face longitudinal central parts of the main body parts 9. The main body parts 9 are divided into connectable middle material parts 91 and end material parts 92 above and below the middle material parts 91 in the longitudinal direction. Flanges 9c, 9d are formed on each divided end part, and the middle material parts 91 and the end material parts 92 are connected with each other by the flanges 9c, 9d. PCOPYRIGHT: (C)2005,JPO&NCIPI