Patent ID: 8661645

Claim:
A device for changing the rotational angle position of a pneumatic tire relative to a wheel rim, with the pneumatic tire being fitted to the rim and resting with its tire beads against seating surfaces of the rim, comprising a clamping fixture for holding the rim, a measuring device for measuring and storing the rotational angle position of markers on the rim and on the pneumatic tire, an evaluating and control unit which computes an angular difference, a positionable rotary drive mechanism which is controllable by the evaluating and control unit, and a manipulating device with a gripper movable relative to the clamping fixture and having a central axis and a plurality of radially adjustable gripper fingers, each of said gripper fingers having oppositely facing lift-off devices for urging the tire beads away from the seating surfaces of the rim, and wherein the clamping fixture is fixed in place and the rotary drive mechanism enables the gripper to be rotated and positioned relative to the manipulating device about its central axis.