| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a windmill which is light weight and yet secures high strength, thereby having improved power generation efficiency, and stably supplies electric power as a result. <P>SOLUTION: The windmill 1 includes: a rotary shaft 4 that is connected to a generator unit 10 having a generator; a hub part 6 that is mounted around the shaft of the rotary shaft 4; rims 7 that are connected to the hub part 6 with a connecting member and provided in a pair in the axial direction X of the rotary shaft 4; and wind receiving parts 9 spanned between connecting members adjacent in the axial direction X of the rotary shaft 4. The connecting members are formed of spokes 8, 8A that are radially arranged from the hub part 6 over the rims 7. Consequently, against drag generated by having a load of constituent members or by receiving wind F, tension of the radially arranged spokes 8, 8A acts and makes them dispersed. Thus, despite the structure composed of thin wires aimed at light weight, a large scale is possible without having any problem in the strength. <P>COPYRIGHT: (C)2012,JPO&INPIT |
