Patent ID: 7566021

Claim:
A restraint system for a vehicle, comprising: a seat belt; an end fitting for an end of the seat belt with a tensioning device, wherein the end of the seat belt can be attached by means of the end fitting to a body of the vehicle, wherein the end fitting comprises a seat belt retractor with a housing that takes up the end of a seat belt and the tensioning device connected to the seat belt retractor for a belt shaft of the seat belt retractor, wherein the belt shaft is formed as a hollow shaft; a blocking element for blocking the belt shaft that is released in the event of an accident, wherein a hollow shaft body of the belt shaft extends through a housing leg of the seat belt retractor housing and has a recess in the plane of the housing leg, wherein the blocking element is pivotably arranged in an interior of the hollow shaft body, and projects through the recess with at least one tooth beyond an outer periphery of the shaft body and is prestressed by a spring element positioned in the interior of the shaft body, into engagement in a toothing formed on the housing leg of the seat belt retractor housing, wherein the blocking element is formed so that it ratchets away over the toothing upon rotation of the belt shaft in a tensioning direction, wherein on an outer circumference of the shaft body, a blocking contour disposed for engagement in the toothing of the seat belt retractor housing is formed directly in the shaft body, and wherein during rotation of the belt shaft in a pull-out direction of the seat belt that takes place after completion of the tensioning movement, the blocking element effects an immediate blocking of the belt shaft.