Patent ID: 6923085

Claim:
A self-moved robotic apparatus comprising: a first base; a second base mounted on said first base and adapted to move on said first base in a Y-axis direction; a robot base portion mounted on said second base and adapted to move in an X-axis direction which intersects at right angles with the Y-axis direction; a first robot movable portion adapted to move on said robot base portion in the X-axis direction; and a second robot movable portion adapted to move on said first robot movable portion in the Y-axis direction, said second robot movable portion having an engagement portion adapted to engage with either said first base or said second base, wherein: when said robot base portion is moved in the Y-axis direction and said engagement portion of said second robot movable portion is in engagement with said first base, said robot base portion moves together with said second base on said first base in the Y-axis direction by driving said second robot movable portion; and when said robot base portion is allowed to move in the X-axis direction and said engagement portion of said second robot movable portion is in engagement with said second base, said robot base portion moves on said second base in the x-axis direction by driving said first robot movable portion.