| 摘要 |
PURPOSE:To support a work positioned at a desired position securely by sealing non-compression type actuating fluid inside a piston cylinder unit, and holding an actuating rod at the desired position. CONSTITUTION:An actuation rod 24 of a piston cylinder unit 21 is moved up by up motion of a drive rod 37 of a drive cylinder actuator 22 by smooth mutual communication of oil filled in cylinder chambers 24a, 25b. When the forward end of an actuating rod 24 is applied to the back surface of an applied part 31a of an applied rod 31 to set a timer up, a solenoid selection valve 27 is deenergized immerdiately, and flow of oil from the lower cylinder chamber 25b of the piston cylinder unit 21 to the upper cylinder chamber 24a is prohibited to seal oil in the lower cylinder chamber 25b to prohibit motion of the actuating rod 24, thereby the actuating rod 24 is held applied to the bottom surface of a work through the applied part 31a of the applied rod 31. |
