| 摘要 |
PURPOSE:To increase a deflection angle width (swing width), by a method wherein second connection ports to the air and closing plates for the connection port are mounted, and when the first connection ports to the air are closed, the other second connection ports are opened. CONSTITUTION:Second connection ports 16R and 16L to the air are positioned at the sides of control ports 3R and 3L, and second closing plates 14R and 14L for communicating port to the air are provided. The second connection ports are designed to open and close according to the displacement of transmission members 13R and 13L. When a communicating port 9L to the air for control is closed, the second communicating port 16R is opened through the transmission member 13R, and the inside of the control port 3R becomes an atmospheric pressure, meanwhile, the inside of the other control port 3L becomes a negative pressure. This increases a differential pressure between the right and left control ports 3R and 3L, whereby, through the rotation of a closing plate 10' for the first connection port, and efficient swing action takes place in a state holding a proportion property, and air-conditioning range is enlarged. |
