CONTROL DEVICE FOR OPERATIONAL DIRECTION OF REMOTE CONTROL TYPE WORKING CAR

PURPOSE:To make the remote control direction coincide with the operating direction of a working car even at the time of backward driving by switching the operation of an actuator by an operating direction switching control means. CONSTITUTION:An operation signal outputted from a remote transmitter is received by a receiver 10b carried by a worker and the 'H' and 'L' states of signals S1, S2 outputted from a steering type control circuit Ja are changed because the signals are changed more or less a reference value in accordance with the forward or backward driving of the working car at the 3rd channel CH3 for selecting the steering type. Consequently, switches SW1X, SW2 of a steer ing direction switching circuit Jb are turned and a steering signal obtained from a steering operation 2nd channel CH2 or a steering direction signal obtained by inverting the polarity through an inversional amplifier A3 is supplied to front and rear wheel valve driving circuits 17F, 17R to switch the operation of the actuator. Consequently, the remote control direction can be made to coincide with the car at the time of backward driving similarly to forward driving, so that the directional operation of the remote car can be made easy and misoperation can be checked.