| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hydraulic device capable of properly driving a single rod-type hydraulic cylinder while suppressing complication of a flow channel configuration and control.SOLUTION: A hydraulic device 1 is provided with a valve device 7 having a valve body and solenoids 73, 74. The valve body blocks communication of a head-side flow channel 12 and a reserve tank 4 by a pressure of a hydraulic liquid flowing from the head-side flow channel 12 toward a rod-side flow channel 11 through itself, and is moved to a first position for communicating the rod-side flow channel 11 and the reserve tank 4, and further it blocks communication of the rod-side flow channel 11 and the reserve tank 4 by a pressure of a hydraulic liquid flowing from the rod-side flow channel 11 toward the head-side flow channel 12 through itself, and is moved to a second position for communicating the head-side flow channel 12 and the reserve tank 4. The solenoids 73, 74 selectively move the valve body toward either the first position or the second position.</p> |
