Abstract: A robot device, preferably in the form of a walking robot 1 comprises a chassis 3 and a plurality of articulated legs 7, each leg 7 comprising an upper leg 10 rotatively and pivotally mounted on the chassis 3 and extending generally upwards therefrom, a lower leg 11 pivotally coupled to the upper leg 10 and a gripper foot 9 mounted on the lower leg 11, the gripper foot 9 being generally lower than the chassis 3, control of the articulated leg 7 being derived from three double acting pneumatic actuating cylinders 17, 18 and 19 each connected between the chassis 3 and the leg 7, position sensors 24, 25 and 26 being provided for determining the position of the leg and differential pressure sensors 42 being provided for sensing the force applied to the leg, processor control means 30 being provided for each leg 7 for effecting movement of the leg 7 in dependence upon the output of the position sensors 24, 25 and 26 and the differential pressure sensor 42.

Abstract: A robot device is provided, particularly for scaling vertical surfaces, comprising a frame structure 1 having four sides 2 to 5, preferably in a rectangular configuration, adjacent ends of each of the sides 2 to 5 being pivotally coupled together by pivots 6. Each of the side members 2 to 5 is provided with suction devices 7 associated with the pivots 6 thereof and a linear actuator 9 is provided between two adjacent sides which is sequentially controlled by a microprocessor to sequentially change the configuration of the frame structure 1 to effect travelling movement of the robot device.