PROBLEM TO BE SOLVED: To provide a quadruped walking work robot of which a walking speed is high and which can be easily controlled.;SOLUTION: A quadruped walking work robot 1 comprises a lower movable body 2 having four leg mechanisms 20, 30, 40, 50, and an upper movable body 3 which has work mechanisms 60, 70 and is loaded on the lower movable body 2. Four leg mechanisms 20, 30, 40, 50 of the quadruped walking work robot 1 are so controlled as to become a crawl-type gate or an intermittent crawl-type gate, and the work mechanisms 60, 70 are so controlled as to change postures thereof so that a total center of gravity is positioned within a range surrounded by three grounded leg mechanisms. The work mechanisms 60, 70 comprise arms 60, 70 which are movable in a cross direction, and by moving the arms 60, 70, the total center of gravity is moved.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT
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