Patent ID: 7941933
Filing Date: 2011-05-17
Classification: G01M

Abstract:
1. Clamping device for clamping a vehicle wheel onto a shaft of a wheel balancing machine, comprising: a plurality of centering bolts, and a clamping flange with a plurality of recesses for receiving the centering bolts, wherein each centering bolt has an insertion region that is releasably insertable into said recesses, wherein the insertion region of the centering bolts and an inner contour of the clamping flange bounding each of the recesses are not circular, and are shaped in a complementary manner such that the insertion region is insertable into a recess with portions thereof being rotatably in the recess about a longitudinal axis of the insertion region, rotation of the centering bolt about the longitudinal axis thereof being able to produce a frictional connection between at least one surface portion of a circumferential surface of the centering bolt in the insertion region and at least one adjacent surface portion of the side wall bounding the recess, and wherein the circumferential surface of the centering bolt in the insertion region and the adjacent circumferential surface of the side wall of the clamping flange in the region of the recess have interacting run-on surfaces or run-on slopes which, by rotation of the centering bolt about the longitudinal axis thereof, enter into mutual engagement and ensure a frictional connection which acts in the axial and circumferential directions, between the centering bolt and the clamping flange after a predetermined angle of rotation has been reached.