| 摘要 |
An actuator unit is provided with: a rod-side chamber and a piston-side chamber, which are separated by a piston; a tank; a first opening/closing valve which connects and disconnects the rod-side chamber and the piston-side chamber; a second opening/closing valve which connects and disconnects the piston-side chamber and the tank; a suction passage which permits liquid to flow from the tank to the piston-side chamber; a flow regulation passage which permits liquid to flow from the piston-side chamber into the rod-side chamber; a pump which supplies liquid to the rod-side chamber; first and second discharge passages which connect the rod-side chamber to the tank; a first passive valve which is provided in the first discharge passage; a second passive valve which is provided in the second discharge passage; and a third opening/closing valve which opens and closes the first discharge passage. |
