| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mini windmill which is power-supplied from the natural energy, rotated by using a geared motor, and slowly turns blades to generate negative ions by a solar cell. <P>SOLUTION: A stay (3) is erected on a pedestal (2) with a solar cell (1) installed therein, and blades (5) to generate negative ions are slowly turned by a motor built in a nacelle (4). <P>COPYRIGHT: (C)2004,JPO |
