| 摘要 |
PROBLEM TO BE SOLVED: To prevent shocks of a work machine generated when a switch indicating valve switching directions is additionally operated or when operation of the work machine is partially stopped, in a driving controlled device of the oil-hydraulic work machine switching and controlling a plurality of hydraulic control valves by an indicating means for a valve switching amount which is common to a plurality of switches indicating valve switching directions. SOLUTION: When an indicating signal is inputted from switches 16, 17, and 18 indicating valve switching directions, or when inputting is stopped, a detecting means 25 for detecting a simultaneous operating state which detects that an indicating signal is inputted from other instructing means 16, 17, and 18 for valve switching directions is provided. Valve-switching controlling signals Va, Vb, and Vc provided for slow-start and slow-stop which slowly switches valves based on a designated controlled curve are outputted to hydraulic control valves 4, 5, and 8 coping with a detecting signal from the detecting means 25 for detecting a simultaneous operating state.
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