Patent ID: 8584980
Filing Date: 2013-11-19
Classification: B60R

Abstract:
1. A seat belt retractor with a load limiting device and a tensioning device including a two-part belt shaft with a first part configured for winding the belt on the first part, and a second part configured to be locked in a vehicle-fixed manner in a frame of the seat belt retractor, the first part having a first end and a second end, the second part being arranged proximate to the first end of the first part, the first part and the second part being rotationally coupled via the load limiting device, the load limiting device connecting the second end of the first part with the second part, the tensioning device further including a tensioner drive wheel for driving the second part in a direction corresponding to winding the belt onto the first part, the tensioner drive wheel being located axially between the first part and the second part of the belt shaft on a hollow cylindrical appendix of the second part of the belt shaft, the tensioner drive wheel having an axial length, and the load limiting device extending past the first end of the first part into the hollow cylindrical appendix of the second part and axially overlapping in one common axial section with both the tensioner drive wheel and the second part of the belt shaft by more than half of the axial length of the tensioner drive wheel.