Abstract: A belt retractor for a safety belt, having a belt reel for winding or unwinding the safety belt, and a belt force limiting installation which comprises a first and second torsion bar for limiting belt force. The belt retractor has a free-wheeling transmission which operates depending on the rotation angle and which after activation of the belt force limiting installation initially leaves the second torsion bar so as to be inactive, while the first torsion bar for limiting belt force is already being twisted, and the free-wheeling transmission activates the second torsion bar as soon as the free-wheeling transmission has been rotated about a predefined maximum free-wheeling rotation angle.

Abstract: A belt retractor for a safety belt, having a belt reel for winding or unwinding the safety belt, and a belt force limiting installation which comprises a first and second torsion bar for limiting belt force. The belt retractor has a free-wheeling transmission Which operates depending on the rotation angle and which after activation of the belt force limiting installation initially leaves the second torsion bar so as to be inactive, while the first torsion bar for limiting belt force is already being twisted, and the free-wheeling transmission activates the second torsion bar as soon as the free-wheeling transmission has been rotated about a predefined maximum free-wheeling rotation angle.

Abstract: The invention relates to a belt retractor (10) for a seatbelt, comprising a belt reel (20) for winding up and unwinding the seatbelt, and a lockable locking base (30) which is connected to the belt reel (20) and, before locking, is rotated together with the belt reel (20) and, after locking, the rotational movement of said locking base is blocked, wherein, in the event of locking of the locking base (30) for limiting the belt force, the locking base (30) and the belt reel (20) can rotate relative to each other. According to the invention, the belt retractor has a band (70) which, in the event of a relative rotation between belt reel and locking base, is pulled into a gap (110), said gap (110) being defined by at least one deformable element (150, 200) which is deformed by the band (70) pulled into the gap (110).

Abstract: The invention relates to a belt retractor (10) for a seatbelt, comprising a belt reel (20) for winding up and unwinding the seatbelt, and a lockable locking base (30) which is connected to the belt reel (20) and, before locking, is rotated together with the belt reel (20) and, after locking, the rotational movement of said locking base is blocked, wherein, in the event of locking of the locking base (30) for limiting the belt force, the locking base (30) and the belt reel (20) can rotate relative to each other. According to the invention, the belt retractor has a band (70) which, in the event of a relative rotation between belt reel and locking base, is pulled into a gap (110), said gap (110) being defined by at least one deformable element (150, 200) which is deformed by the band (70) pulled into the gap (110).

Abstract: An occupant protection device including a pyrotechnical gas generator and a safety valve operating in a temperature-dependent manner and leading to the outside is connected to the gas generator. A sealing element of the safety valve is formed by a pin that includes a pin head, which is inserted from inside into a hole in a wall of a supply element such that the pin head bears against the inner face of the wall. A pin end, which is located on the outer face of the wall and protrudes outwardly through the hole, is plastically reshaped, so that the cross section of the pin end is larger than the cross section of the hole thereby forming a sealing portion which is larger in cross section than the cross section of the hole.

Abstract: The invention relates, amongst other things, to an occupant protection device comprising a pyrotechnical gas generator (40). According to the invention it is provided that a safety valve (200) operating in a temperature-dependent manner and leading to the outside is connected to the gas generator.

Abstract: A seat belt retractor for a safety belt including a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive. The seat belt spindle includes a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel. A plurality of thrust members are present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. An inertia coupling is arranged between the drive wheel and the seat belt spindle. The inertia coupling comprises coupling elements which, during an acceleration of the drive wheel, pivot outward and are directly or indirectly coupled to the seat belt spindle.

Abstract: The invention relates to a belt retractor (10) for a safety belt (30) with a belt reel (20) for winding and unwinding the safety belt and with a tightener drive, which comprises: a gas generator (60), a drive device (40) connected to the belt reel (20), and a connecting device (50), which connects the gas generator and the drive device, the connecting device having a guide tube (70) and a plurality of thrust members (80), which are situated in the guide tube, are accelerated after triggering of the gas generator and directly or indirectly drive the drive device for the purpose of winding the safety belt. According to the invention, at least one sealing element (100a, 100b, 100c) is arranged in the guide tube (70) between the gas generator (60) and that side (80a?) of at least one of the thrust bodies (80a, 80b, 80c) which faces the gas generator, which sealing element rests against the inside of the guide tube.

Abstract: A seat belt retractor for a safety belt including a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive. The seat belt spindle includes a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel. A plurality of thrust members are present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. An inertia coupling is arranged between the drive wheel and the seat belt spindle. The inertia coupling comprises coupling elements which, during an acceleration of the drive wheel, pivot outward and are directly or indirectly coupled to the seat belt spindle.

Abstract: A seat belt retractor for a safety belt including a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive. The seat belt spindle includes a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel. A plurality of thrust members are present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. An inertia coupling is arranged between the drive wheel and the seat belt spindle. The inertia coupling comprises coupling elements which, during an acceleration of the drive wheel, pivot outward and are directly or indirectly coupled to the seat belt spindle.

Abstract: A seat belt retractor for a safety belt including a seat belt spindle for winding up and unwinding the safety belt and a tensioning drive. The seat belt spindle includes a gas generator, a drive wheel and a supply pipe which connects the gas generator and the drive wheel. A plurality of thrust members are present in the supply pipe which, after triggering the gas generator, are accelerated and indirectly or directly drive the drive wheel for winding up the safety belt. An inertia coupling is arranged between the drive wheel and the seat belt spindle. The inertia coupling comprises coupling elements which, during an acceleration of the drive wheel, pivot outward and are directly or indirectly coupled to the seat belt spindle.