Abstract
In this paper, we report a stair-step jumping experiment using an improved version of a compact jumping robot based on snap-through buckling of an arch-type closed elastica supported by an fi-shaped frame. Experimental results show that the robot can jump up an actual stair-step with a height of about 200[mm] and a tread of about 270[mm] in spite of a 40[g] payload, which exhibits the potential to achieve quick stair climbing by repeated jumping with mounting a micro-computer and appropriate sensors instead of the payload.
