| 摘要 |
PROBLEM TO BE SOLVED: To provide a propeller fan capable of compatibly materializing prevention of deformation of the propeller fan, and maintenance of fundamental performances such as delivery performances, efficiency, and noise performance. SOLUTION: In a resin propeller fan 1 having a hub 2 and a plurality of radially extending blades 3 formed integrally around the outer periphery of the hub 2, wherein, if the radial dimension from the roots of the blades 3 to the outer peripheral edges 6 thereof is 100, a ring 10 for joining the blades 3 together is mounted at a position in a range from 5 to 45 from the outer peripheral edges 6. COPYRIGHT: (C)2010,JPO&INPIT
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