| 摘要 |
PURPOSE:To enable to prevent dewing from occurring in a cooling operation, by a method wherein a gap constituting an air passage is provided between a lower surface of a blow-off port and an end part of an airflow direction plate when the plate is in a horizontal position. CONSTITUTION:A rotary shaft 10 is provided as one body with the airflow direction plate 9 (which has a surface shape conforming to that of an ornamental cover 3) in front of both side surface end parts of the plate 9, and is located at such a position that a gap constituting an air passage is formed between the lower surface 3b of the blow-off port and an end part of the plate 9 when the plate 9 is in the horizontal position. Accordingly, since the rotary shaft 10 is located on the side surface of the plate 9, an operational distance is short, which leads to favorable operability. In addition, since cool air blow off flows so as to envelop the plate 9 as indicated by large arrows when the plate 9 is maintained in the horizontal position as indicated by a dotted line in the cooling operation, dewing does not occur on the plate 9 even though the plate 9 is cooled, since warm air does not touch the plate 9 but flows as indicated by an arrow F. |
