STEERING STRUCTURE OF WORKING VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide an axle case having a left and a right vehicle wheel to commit steering and a steering structure of a working vehicle capable of smoothly making up-and-down rotational swinging of steering cylinders and making a straight run in good performance. SOLUTION: The working vehicle is structured so that the central part of the axle case 2 having a left 2L and a right vehicle wheel 2R to commit steering is supported by a running machine body 1a through a rotary shaft 50 in such a way as capable of up-and-down rotational swinging and a left 3L and a right steering cylinder 3R are expanded and contracted through a power steering unit 31 so as to allow the wheels 2L and 2R to make steering, wherein one-side ends of the cylinder 3L and 3R are coupled with knuckle arms 24 and 25 of a left 22 and a right king pin case 23 supported by the axle case 2 while the other ends are coupled with the rotary shaft 50.