OUTRIGGER DRIVE CONTROL DEVICE

PURPOSE:To improve the operating property by extending or contracting a pair of outriggers simultaneously responding to the operational direction of an operation lever, while operating the pair of outriggers independently when the operation lever is operated in the four areas divided in the operational direction and in the direction square to the operational direction. CONSTITUTION:When an operation lever 31 is slided to the left side or to the right side of the vehicle from the neutral position, a switch SWL or a switch SWR is ON through a pressing member 33a, and when it is slided to the front side or to the rear side of the vehicle, a potentiometer 34F or a potentiometer 34R is operated and a signal responding to the amount of the operation is output. Moreover, when the operation lever 31 is slided to the area I, for example, of the four areas divided in the left and the right direction, and in the front and the rear direction, the potentiometer 34F and the switch SWR are made to operate together. Depending on the outputs of the potentiometers 34F and 34R, and the switches SWL and SWR, control valves 43L and 43R are converted, and the left side and the right side outriggers 14 and 15 are extended or contructed simultaneously or independently.