Seat belt pretensioning device.

摘要

A motor vehicle with at least one seat (5) has a roll bar (11) which is mounted in the seat (5) and can be moved out of its position of rest in the seat (5) into its operative position by means of a device. A driver (21) for a safety belt (7) assigned to the seat (5) is mounted on the device or the roll bar (11) in such a way that, when the roll bar (11) moves into its operative position, the driver (21) pulls up the safety belt (7) with the effect of tightening the belt.