CONTROL DEVICE FOR PLURAL ACTUATORS

PURPOSE:To provide possibility of drive control of No.1 and No.2 actuators simultaneously by installing a No.2 pilot operating part at No.1 pilot operating part in parallel therewith, and by interposing a throttle with a small rate of flow between inlets to No.1 and No.2 flow control parts. CONSTITUTION:No.2 pilot operating parts 2c, 2d are installed in parallel with No.1 pilot operating parts 2a, 2b of No.1 flow control valve 2, wherein No.1 pilot operating parts 2a, 2b are provided in a pair on the left and right, and a micro-flow throttle 5 is interposed between the pressure oil inlet to said No.1 flow control valve 2 and the pressure oil inlet to No.2 flow control valve 4. This ensures full quantity supply of the pump discharge to No.1 actuator 6 via No.1 flow control valve 2 even in case max. opening areas of throttle switching valves 1, 3 to control No.1 and No.2 actuators 6, 8, are large relative to the pump discharge to eliminate risk of driving of No.2 actuator 8 becoming impracticable, so that No.1 and No.2 actuators 6, 8 can be driven simultaneously under precision control.