To provide a concrete placing joint surface cleaning car capable of executing the on-the-spot revolving, the traversing in the lateral direction, the left oblique motion and the right oblique motion, besides the straight- travelling in the longitudinal direction, the left turn and the right turn.
Pairs of left and right steering/driving wheels 2 are respectively provided on a front part and a rear part of a chassis 1, four sets of steering mechanisms 3 for indepedently steering the steering/driving wheels 2 are mounted, and each set of steering mechanism 3 comprises a first cylinder 11 for steering the corresponding steering/driving wheel 3 by 45°, and a second cylinder 12 for steering the corresponding steering/driving wheel by 90° through the first cylinder. By combining the expansion and contraction of the first cylinder 11 and that of the second cylinder 12, the steering for the straight- travelling, the on-the-spot revolving, the traversing, the left turn, the right turn, the left oblique motion and the right oblique motion can be executed.
TANAKA KIICHIRO
SATO YOICHI
OHBAYASHI CORP
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