| 摘要 |
PURPOSE:To enable to reduce the draft resistance and at the same time to make both the drawing-out an air blow-off port and the direction control of blow-off air possible in one action by a structure wherein the directional angles of guide blades are changed interlockingly with the drawing-out action of the air blow-off port. CONSTITUTION:A plurality of guide blades 13 are pivotally supported on a frame body 10a so as to be able to change their directional angles in a draw-out type air blow-off port formed by the frame body 10a, on which a plurality of the guide blades 13 are supported and which is drawably installed on a base 11. In addition, a link mechanism 15, which responds to the drawing-out action of the air blow-off port 10, is connected to the guide blades 13 so as to change the directional angles of the guide blades 13 by interlocking with the drawing-out action of the air blow-off port 10. As a result, the draft resistance is reduced and at the same time both the drawing-out of the air blow-off port and the direction control of blow-off air can be performed in one action.
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