| 摘要 |
<p>PURPOSE: A blade of a vertical windmill is provided to remarkably improve the drag by putting a drag wing generating drag into/out, thereby easily driving the blade. CONSTITUTION: A blade of a vertical windmill comprises a body(11) and a drag generating unit(30). First and second access holes are formed in the body. The drag generating unit is mounted in the body and includes first and second fixing panels and a wing unit(40).</p> |
