| 摘要 |
PURPOSE:To prevent a slack by connecting an end of arm and a drive shaft of an actuator by a leaf spring. CONSTITUTION:Pins 13, 14, 15, 16 are fixed to an end of arms 17, 18, 19, 20 which are fixed to the end of valve shafts 9, 10, 11, 12, and one end of leaf springs 29, 30, 31, 32 is fixed to the pins 13, 14, 15, 16 while the other end of the leaf springs 29, 30, 31, 32 is fixed to a drive shaft 28 of an actuator 21. In this manner, as the cylindrical end of the respective leaf springs 29, 30, 31, 32 is tightened to the pins 13, 14, 15, 16 fixed to the end of the arms 17, 18, 19, 20 of rotary valves 5, 6, 7, 8 by virtue of its own spring action, a danger of generating a slack is prevented in the usage of a long time. |
