To provide a blower enabling the easy cleaning of a blade by making detachable an orifice by a rotating operation and enabling an airtightness to be maintained between the orifice and a fan casing by forming a connection face therebetween.
This blower comprises the blade 1 for performing ventilation, a motor 2 driving the blade 1, the fan casing 3 incorporating the blade 1 and the motor 2, and the orifice 4 detachably fixed to the inlet 14 of the fan casing 3. A first step part 16 is formed at the inner peripheral edge part of the inlet 14 of the fan casing 3. To attach and detach the orifice 4 having a second step part 17 correspondingly to the first step part 16 by rotating, a claw part 5 is formed at the outer peripheral edge part of the orifice 4, and a cutout part 6 is formed at the inner peripheral edge part of the fan casing 3 at a position opposed to the claw part.
| WO/2008/090202 | A DIFFUSER FOR DECELERATING A COMPRESSED FLUID |
| JP3091998 | [Title of Invention] Vertical shaft pump |
| WO/1993/004287 | AIR-FLOW DUCT FOR AXIAL-FLOW AIR FAN |
FURUTA YUKIFUMI
MATSUBARA SHUJI
NAKAMURA RYUICHI
MIYAMOTO HIROYUKI
Tomoyasu Sakaguchi
Hiroki Naito