| 摘要 |
The invention provides a hydraulic circuit for an auxiliary working implement which selectively operates two kinds of auxiliary working implements by one system of hydraulic circuit. A one side oil chamber pipe (5) and an another side oil chamber pipe (6b) respectively connecting a one side oil chamber (11a, 21a) and an another side oil chamber (11b, 21b) of a hydraulic actuator (11, 21) for an auxiliary working implement is connected to a direction switching valve (3), and binary flow path selecting and switching valves (8, 9) are respectively provided in terminal ends thereof. A one side oil chamber connecting pipe (12) of a first auxiliary working implement (10) is connected to one flow path (b) of the one binary flow path selecting and switching valve (8), and a one side oil chamber connecting pipe (22) of a second auxiliary working implement (20) is connected to another flow path (c), respectively. Further, an another side oil chamber connecting pipe (13) of the first auxiliary working implement is connected to one flow path of the another binary flow path selecting and switching valve (9), and an another side oil chamber connecting pipe (23) of the second auxiliary working implement is connected to another flow path, respectively. <IMAGE> |
