| 摘要 |
PROBLEM TO BE SOLVED: To suppress oil leak or the like by reducing the number of connection ports in joining surfaces to a requisite minimum when pressure oil is supplied to a multiple valve device by two hydraulic pumps.SOLUTION: A valve housing 12 of a multiple valve device 11 is divided into two blocks in the vertical direction, a first housing block 13 and a second housing block 14. A total of four connection ports 67C, 69C, 73C, 74C are disposed at locations of joining surfaces 13B, 14A between the first housing block 13 and the second housing block 14. In supplying pressure oil to all control valves 26, 30, 34, 38, 47, 48, 54, 55, and 61 from a first and a second hydraulic pumps 77, 79, the number of the connection ports 67C, 69C, 73C, and 74C is reduced to a requisite minimum to suppress an oil leak or the like in between the joining surfaces 13B, 14A. |
