US Patent 7717242 Torsional vibration damper disk

A torsional vibration damping disk with a base body which has a circumferential edge on the outside which is partially turned back in order to form receiver spaces for spring elements, in particular for bow spring elements. In order to create a torsional vibration damping disk which has a long service life at high rotational rates, a reinforcement strap, the free end of which is fastened to the base body, extends out from the circumferential edge in the area of at least one receiver space.