A robot is obtained having various functions that are demanded for planetary
landing
vehicles, extreme operations robots or the like, in particular to provide a leg
structure for a robot that is capable of getting up itself when overturned, facilitating
take-off and landing on uneven ground, and that has a walking function and that
has a hand function capable of three-dimensional operation. A robot comprises a
main robot body and at least three legs mounted on this main body for enabling
three-dimensional movement of the main robot body such as a self-erecting action
or walking action; each leg is constituted by a multi-joint arm having a plurality
of said offset rotary joints linked together and has a ground-engaging member mounted
at the leading end of the arm, so that each leg is capable of independently controlled
three-dimensional movement and drive.
