MAGNETICALLY ATTRACTED ROBOT

PURPOSE:To contrive to automatize an operation on a wall surface, by providing at least 4 electromagnets capable of being moved in a direction along a surface onto which the electromagnets are to be attracted. CONSTITUTION:When the robot is to be moved, for example, rightward, passing of an electric current to two electromagnets 12a, 12b on the left side is stopped to deenergize the electromagnets while moving them rightward, and the electromagnets are moved to positions B proximate to centers of upper and lower frames. To support the robot by 3 electromagnets during this operation, the movement of the electromagnet 12a and that of the electromagnet 12b are effected with a time lag therebetween. Then, a controlling circuit 19 controls driving motors 18 so that all of the 4 electromagnets 12 are moved leftward relatively to a main body. Since the electromagnets 12 are attracted to the surface onto which they are to be attracted, the main body of the robot is moved rightward while the electromagnets are stopped. Thus, the two electromagnets on the left side are returned to initial positions A, while the electromagnets on the right side come to the positions B. Then, the electromagnets 12c, 12d are moved to the positions A.