| 摘要 |
An axial-flow fan (70) is integrally resin-molded with a hub (71) and a plurality of blades (72) formed so as to project from an outer perimeter edge of the hub (71). A first blade thinned-out part (74) is formed in a joint (73) of the blade (72) with the hub (71) so that a radial rib (75) extending radially toward the outer perimeter side is left. |
