Patent ID: 7832768

Claim:
A restraining system for a motor vehicle comprising a seat belt retractor for fixing a seatbelt component, which has a belt shaft element and a pretensioner device attached to the belt shaft element having a drive cable which is tensioned by a piston upon actuation, a sleeve that enlarges the outer circumference of the belt shaft element is slid on one end of the belt shaft element and is axially and radially fixed to the shaft element, wherein the wall thickness of the sleeve provides a drive radius of the cable wrapped on the sleeve which is greater than the radius of the belt shaft element, wherein the belt shaft element is configured as a hollow shaft with a locking element arranged in the interior of the shaft element, and the sleeve is slid on the end of the shaft element that accommodates the locking element, which is mounted in a retractor housing leg, and has an opening, which is flush with a passage opening of the shaft element of the locking element.