Patent ID: 6908109
Filing Date: 2005-06-21
Classification: B21C,B21D,B62D

Abstract:
1. A steering gear shaft for a steering column of a motor vehicle, comprising at least one crash-deformable section formed as a corrugated tube at least a portion of a longitudinal extent of which that contains at least one of corrugation crests of the corrugation tube and which is formed of several layers; and a plurality of openings provided in a region of the at least one of the corrugation crests in at least one of the layers, wherein a universal joint is provided at least at one end of the corrugated tube, and wherein a wall thickness of at least one of the layers diminishes, over a region of the corrugation crests and corrugation troughs, from a side of the corrugated tube adjacent to the universal joint to a side of the corrugated tube remote from the universal joint.