| 摘要 |
PURPOSE:To enable a smooth adjustment of wind direction from a diffuser and to prohibit noise and dropdown of diffused wind volume by a method wherein a blade is mounted at a base end part on a wind passage inner wall and at the other end side on a movable member which can reciprocate on a diffusing opening side of an airstream diffuser. CONSTITUTION:When a movable member 7 is moved to increase a protruding width of a blind plate 71 with respect to a width direction of an opening 24, for example, as shown by an imaginary line, an opening area of the opening 24 is decreased corresponding to the protruding width and a direction of the opening is changed toward a downward direction. On the contrary, when the protruding width of the blind plate 71 is decreased as shown by a solid line, the opening area of the opening 24 is increased and the direction of the opening is changed to a rather upward direction. In either case, a base end part 61 of a blade 6 is held at a constant position and a whole figure of the blade 6 is maintained in a smoothly curved streamline shape because of the flexibility of the blade 6. To maintain the figure of the blade 6 in a streamline shape, it is effective to make the blade 6 of a material which is flexible and properly firm. |
