| 摘要 |
PURPOSE:To reduce the stroke of a cam remarkably by a method wherein an insensitive area, in which a cam operating member does not operate the cam during driving a deflector servomotor from first position to a predetermined position, is formed between the cam operating member and the cam. CONSTITUTION:A piston rod 15 is moved into the arrow sign direction in the diagram from the fully closed position thereof by driving a deflector servomotor 14 and this movement controls a deflector 19 through a lever 16, a rod 17 and a bar 18 to open the opening degree of the deflector from the fully closed condition gradulally. In accordance with the movement in the arrow sign direction of the piston rod 15, the cam operating bolt 23 moves also integrally. However, a gap G1 exists between the bolt 23 and the cam 24, therefore, the cam 24 does not move for a while. The adjustment of the gap G1 may be effected easily by adjusting the protruding amount of the cam operating bolt 23. |
