Abstract
News editors obtained the following quote from the background information suppli ed by the inventors:“Examples of a walking (leg-driven) robot that moves by mov ing legs (leg portions) back and forth includevarious robots such as a four-leg ged robot and a six-legged robot.“In a case where such a walking (leg-driven) robot stops, the robot needs to be in a state where atleast three legs are landed on the traveling surface.“In some cases, the robot travels not only on a flat surface but also on a trave ling surface havingvarious different shapes such as an inclined surface and a s taircase, for example. The walking (leg-driven)robot cannot stop in a stable po sture unless the arrangement of each foot and the posture of the robotare chang ed in accordance with the shape of the traveling surface.