| 摘要 |
PURPOSE:To improve the comfortable property thereof and save the energy therefor by a constitution wherein the periodical blow-off range of an air flow direction changing device is changed in accordance with a room temperature. CONSTITUTION:When room cooling is started, a low-speed motor 11 is operated to move vanes 8 into up-and-down directions and change the direction of air flow. At this time, a temperature sensitive section 18 detects the room temperature. When the room temperature is high, a temperature sensitive liquid elongates an operating section 19 to bring a swinging shaft 22 to a place near the center of a motor shaft 12 and a slide pin B17. Accordingly, the swinging range of a swinging plate 28, which is caused by the rotation of a slide pin A14, is transmitted with the same range of the slide pin B17 and thereby extending the air flow changing range of the vanes 8 into a wide range. When the room temperature is reduced, the swinging shaft 22 is shifted to the side of the slide pin B17 to narrow the air flow direction changing range and flow the air in parallel with a ceiling. According to such constitution, the environmental comfortableness is improved and the energy for the device may be saved. |
