Abstract: The invention relates to a belt retractor for a seat belt of a motor vehicle, comprising a belt shaft which is rotatably mounted in a housing frame, a profiled head which can be locked relative to the housing frame, and a force-limiting device, wherein the force-limiting device is coupled on the one hand to the profiled head and on the other hand to the belt shaft and wherein the force-limiting device allows a force-limited rotation of the belt shaft relative to the locked profiled head, characterized by an actively releasable decoupling device.

Abstract: The invention relates to a belt retractor surrounding a belt reel which is rotatably mounted in a frame, and comprising a force-limiting device with at least one plastically deformable first torsion rod, wherein the first torsion rod has a first end rotationally fixed to the belt reel and a second end rotationally fixed to a profiled head which can be blocked via a first blocking device in a fixed manner relative to the vehicle. The belt reel, the first torsion rod and the profiled head are arranged coaxially to one another and in series relative to one another.

Abstract: The invention relates to a belt retractor for a seat belt of a motor vehicle, comprising a belt shaft (2) which is rotatably mounted in a housing frame (1), a profiled head (3) which can be locked relative to the housing frame (1), and a force-limiting device (4), wherein the force-limiting device (4) is coupled on the one hand to the profiled head (3) and on the other hand to the belt shaft (2) and wherein the force-limiting device (4) allows a force-limited rotation of the belt shaft (2) relative to the locked profiled head (3), characterized by an actively releasable decoupling device (5).

Abstract: A seat belt retractor with a switchable load limiting device for a safety belt of a motor vehicle with a belt shaft and a locking device which upon actuation locks the belt shaft in the belt extraction direction. The load limiting device is located in the force flow between the belt shaft and the locking device between the load limiting levels. A switching device is used for switching the load limiting device. The switching device includes a gas generator for releasing a gas flow into a pressure chamber and an expandable hollow pot which can be driven by the gas flow. The expandable hollow pot is attached to the gas generator in a gas-proof manner and forms the pressure chamber.

Abstract: A seat belt retractor with a switchable load limiting device for a safety belt of a motor vehicle with a belt shaft and a locking device which upon actuation locks the belt shaft in the belt extraction direction. The load limiting device is located in the force flow between the belt shaft and the locking device between the load limiting levels. A switching device is used for switching the load limiting device. The switching device includes a gas generator for releasing a gas flow into a pressure chamber and an expandable hollow pot which can be driven by the gas flow. The expandable hollow pot is attached to the gas generator in a gas-proof manner and forms the pressure chamber.