| 摘要 |
PURPOSE:To obtain so comfortable air conditioning that the head part can be cooled and the foot part can be heated by a method wherein the openings for a heater, a cooler ventilator, cooled air are opened or shut by the operation of a damper according to the bilevel mode at either constant temperature or cooled air. CONSTITUTION:Diaphragms 1, 2, 29 for operating a damper are operated by the negative pressure introduced through a vacuum switch and the air passage is opened or shut. For example, for the bilevel mode at the constant temperature, the negative pressure is introduced into the diaphragms 1, 29 and not into the diaphragm 2. Thus, the lever 3 locates a damper 5 at e, locates a damper 16 at k through a pin, a long slit 12a and a link 12 and locates a damper 8 at g through a lever 7. In this way, a cooler ventilator opening 8, a defroster opening 9, a heater opening 20 are opened and the cooled air opening 32 is shut. Similarly, when the negative pressure is introduced into the diaphragms 1, 2 and not into the diaphragm 29, the cooled air bilevel mode is obtained. |
