| 摘要 |
PURPOSE:To prevent blown off wind from receiving influences from the side wall of a blow-off cylinder and to positively advance the wind the direction of which has been adjusted, in a desired direction from louver fins. CONSTITUTION:The blow-off cylinder 1 is formed separately from a duct cylinder 4, and louver fins 2, 2,... for adjusting vertically is provided in the vicinity of the tip and surface 11 of the blow-off cylinder 1. On the side walls 12 and 12 of the blow-off cylinder 1 located at the sides of louver fins 3, 3,..., corner parts 13 are formed at positions corresponding to tip ends 32 of louver fins 3, 3, ... or the center shaft 31 of swinging movement, and the width from the corner parts to their tip ends 11 is enlarged. When the louver fins 3, 3,... are swung for adjusting the wind direction, wind passing between the louver fin 3 at the left end in the drawing and the side wall 12 directly advances in the desired direction because the wind near to the louver fins 3 does not hit the side wall 12 in the vicinity of the tip end 11 and hence does not move back because of its width has been enlarged. |
