| 摘要 |
<p>PURPOSE:To both control longitudinal movement of a guide plate in accordance with a degree of opening in an air mixing door and completely retract the guide plate when a bypass passage is fully opened, in such air mixing construction provided with the guide plate at an outlet side of the bypass passage formed open-closeable with its inlet side by the air mixing door. CONSTITUTION:Under a state in which a heater core passage 13 is fully closed and a bypass passage 14 is fully opened by an air mixing door 16, a guide plate 20 is in a retracted state for an air mixing chamber 15 to display maximum power of ventilation. Then a crank 26 is operated to a direction C, if the door 16 is moved to the closing direction of the bypass passage 14, a rotary lever 28 is rotated to a direction D along a control groove 29 in the crank 26, and the guide plate 20 is advanced to the direction of the chamber 15. At this time, the control groove 29 rotates the rotary lever 28 to a large amount in the lower part further successively to a small amount in the upper part with a doglegged curved point as the border, and then gently advances the guide plate 20 with opening motion of the door 16.</p> |
