Patent ID: 8028950

Claim:
A combination of belt retractor and belt pre-tensioner comprising a housing, with a belt shaft locking device coupled with a belt shaft and which can be actuated into engagement with a set of locking teeth on a drive wheel, a pre-tensioning device which acts on the belt shaft and having the drive wheel which can be connected to the belt shaft via the locking device in power-transmitting relationship, wherein the drive wheel acts on a control disc as part of the locking device and, as a result of the relative rotation of the control disc relatively to the belt shaft upon rotation of the drive wheel the locking device is actuated into the power-transmitting engagement with the drive wheel, a lever engaged by the drive wheel on its rotation in a pre-tensioning direction mounted pivotally on the housing on a pivot, the pivot movement of the lever effected by the rotation of the drive wheel wherein the lever free end comes into engagement with the control disc and in so doing, over part of the pivot movement, drives the control disc for relative rotation with respect to the belt shaft and after the lever has passed through the part of the pivoting movement serving to drive the control disc the lever is released from the control disc and the drive wheel.