| 摘要 |
A valve unit 1 includes a first valve body 14 which is slidable in a valve housing 11 and a second valve body 13 which is slidable with respect to the first valve body 14, and the valve housing 11 has a first passage 11a and a second passage 11b in both of which pressure fluid flows to slide the second valve body 13, a pump port 11c, a tank port 11e, a first cylinder port 11d, and a second cylinder port 11f. A first state 1a, a third state 1c, a second state 1b, and a fourth state 1d are realized by a combination of a position of the first valve body 14 after sliding and a position of the second valve body 13 after sliding with respect to the first valve body 14. |
