| 摘要 |
PURPOSE:To make it possible to properly condition a temperature of a blow off air flow with simple operation by turning an upper and lower dampers connected to each other with a link mechanism through a pair of shafts in such a way that one is kept in advance of the other. CONSTITUTION:A heater unit U, a main part of a car air conditioning device, has a heater 20 and a supporting shaft 30 for an air mix damper 40 inside a heat duct 10. The supporting shaft 30 is composed of inner and outer shafts 31, 32. The air mix damper 40 is formed with upper and lower dampers 41, 42, which are rotatably supported by the inner and outer shafts 31, 32. The inner and outer shafts 31, 32 are interconnected with each other by a link mechanism 60. The lower damper 42 is advanced to the upper damper 41 so as to be turned together with in temperature rise of a blow off air flow while the upper damper 41 is advanced to the lower damper 42 so as to be turned together with in temperature drop of a blow off air flow. |
