| 摘要 |
PROBLEM TO BE SOLVED: To provide a vertical blade for stably maintaining a wind direction performance without generating a distorted deformation caused by a thermal influence or the like to a bent part for bringing about a bent deformation according to movement of a coupling bar. SOLUTION: A bent part 16 is formed to be sequentially connected between a fixed frame 14 and a movable frame 15 via a hinge 26 at a plurality of flat plates 21 extended in a vertical direction. The hinge 26 is formed thinner than the plate 21 to have flexing properties around the frame 14. Thus, a bent state of the overall bent part 16 is obtained by bringing about a flexing deformation of the hinge 26. At this time, the individual plates 21 are held in a vertically flat state. Thus, directioning of the diffusing direction can be stably maintained for a long period without bringing about the distorted deformation at the part 16 like a prior art. |
