| 摘要 |
PROBLEM TO BE SOLVED: To provide an outrigger device that can telescope a pair of outrigger beams relative to an outrigger box by means of a single telescopic cylinder. SOLUTION: The outrigger device comprises the single cylindrical outrigger box open at both ends, the pair of outrigger beams inserted from the respective opposite ends of the outrigger box telescopic in axis directions of the outrigger box, jacks substantially vertically mounted at respective outer ends of the outrigger beams and grounded when extended, and the single telescopic cylinder incorporated in the outrigger box and both outrigger beams. One end of the telescopic cylinder is pivoted on one outrigger beam, and the other end is pivoted on the other outrigger beam. COPYRIGHT: (C)2004,JPO
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