| 摘要 |
PURPOSE:To provide the titled blow-off port of the ventilator in which an air current along the side wall of a blow-off cylinder flows so that the direction of wind is bent along louver fins. CONSTITUTION:When the louver fins 2 are rotated for changing the wind direction, the louver fins 2 are not engaged with a sector wheel 34 because of a charmfered gear part 35 of the sector wheel 33 in the initial period in which the air current is not substantially throttled, and hence auxiliary fins 3 are not projected. When louver fins 2 are rotated so that the louver fins 2 throttle the air current, gears 36 and 37 of sector wheels 33 and 34 are engaged with louver fins 2. Therefore, the tip end 32 of the auxiliary fin 3 projects into the inner part of the blow-off cylinder 1 and assumes a state as shown in the drawing. In this state, as indicated by arrow B in the drawing, the air current is deviated largely so that it makes round into the back side of the auxiliary fin 3, and the air current passing within the blow-off cylinder 1 is deviated effectively in a direction parallel to the louver fin 2 so that it can adjust the wind direction to a desired one. |
