| 摘要 |
This actuator is provided with: a cylinder; a piston inserted into the cylinder so as to be capable of sliding freely; a rod which is inserted into the cylinder, and which is connected to the piston; a rod-side chamber and a piston-side chamber which are demarcated in the cylinder by the piston; a tank; a first opening/closing valve provided to a midway point of a first passage connecting the rod-side chamber and the piston-side chamber; a second opening/closing valve provided to a midway point of a second passage connecting the piston-side chamber and the tank; a pump for supplying operating oil to the rod-side chamber; a motor for driving the pump; a discharge passage which connects the rod-side chamber and the tank; and a passive valve which is provided to a midway point of the discharge passage, and which has prescribed pressure flow rate characteristics. |
