CONTROL DEVICE FOR PLURALITY OF ACTUATORS

PURPOSE: To provide a control device having a plurality of actuators which prevents reduction of a discharge rate of a specified actuator when a high pressure small flow rate is required through abrupt increase of a discharge pressure of a variable pump, and never restricts a flow rate to be supplied to the other actuator when a low pressure large flow rate is required. CONSTITUTION: A downstream side of a pressure compensation valve connected to a changeover valve for controlling a specified actuator is communicated with one actuator of a changeover valve for controlling the other actuator through a joining passage 63, while a communication valve 30 is provided on the passage 63. Pilot pressure for changing over the changeover valve for controlling the other actuator is introduced to a pilot chamber 56b of the communication valve 30. When a spool 52 is moved by the pilot pressure, an inflow port 60 is communicated with a through-hole 65. When pressure fluid introduced from the inflow port 60 to the through-hole 65 reaches a specified value, a check valve is opened for introducing the fluid from the through-hole 65 to an outflow port 61.