| 摘要 |
<p>PROBLEM TO BE SOLVED: To shorten a mounting work time in mounting a blade portion on a supporting portion.SOLUTION: A blade portion 9 comprises: a root portion 10 fixed to a supporting portion 8; and a vane portion 11 sending air by rotation of the supporting portion 8. The root portion 10 has at least two hooking portions 15, and the supporting portion 8 includes hole portions 12 at positions corresponding to the hooking portions 15. The hole portions 12 have first hole parts 13 into which the hooking portions 15 can be inserted, and second hole parts 14 being holes connected to the first hole parts 13. The second hole parts 14 are positioned at an upstream side in the rotating direction of the blade portion 9, of the first hole parts 13. The hooking portions 15 are inserted into the first hole parts 13, and then the hooking portions 15 are moved from the first hole parts 13 to the second hole parts 14, so that the hooking portions 15 are caught by the second hole parts 14.</p> |
