An assembly includes a housing. The assembly includes a spool rotatable relative to the housing. The assembly includes a cable fixed to the spool. The assembly includes a passenger restraint fixed to the cable. The assembly includes a pyrotechnic device fixed relative to the housing and designed to rotate the spool relative to the housing. The assembly includes a ratchet-and-pawl mechanism between the housing and the spool.

A seatbelt retractor for a seat belt device in a vehicle. The retractor including a frame and a spool. The spool is configured to be fixed to one end of a webbing which is wound around the spool. A pretensioner device configured to rotate the spool in response to an excessive acceleration of the vehicle. The pretensioner device comprises a power transmission element carried in a pretensioner tube that is driven by a piston located in the pretensioner tube. The pretensioner device includes a gas generator for driving the piston into the power transmission element. The pretensioner device includes a seal system that includes a stopper tube located in a downstream end of the pretensioner tube to create a stop location for the piston to prevent operating gas from exiting the end of the pretensioner tube.

The invention relates to a belt retractor comprising a frame (10), a belt reel (12) rotatably arranged within the frame (10), a blocking mechanism (18) by which the belt reel (12) can be blocked within the frame (10), and a load limiter which comprises a corrugated disk (36), characterized in that the corrugated disk (36) is disposed between the belt reel (12) and a cover (38) which is laterally attached to the belt reel (12).

The invention relates to an actuator (70) for releasing a load limiter (14) of a belt retractor for a vehicle seat belt, comprising a case (72) which is adapted to be attached to a frame (10) of the belt retractor and includes a seat (82) in which a pyrotechnical actor (80) is arranged, characterized in that a retaining clip (90) for locking the actor (80) within the seat (82) is attached to the case (72). The invention further relates to a belt retractor comprising a frame (10), a belt reel (12) rotatably supported in the frame, a load limiter (14) which is detachably connected to the belt reel (12) and an actuator (70) of the afore-mentioned type, characterized in that the retaining clip (90) bears on the frame (10).

In a webbing take-up device, when a rotating member is rotated in a take-up direction in a state in which first engagement teeth and second engagement teeth of a rotating member are digging or biting into a moving member, the moving member is pressed by the first engagement teeth and the second engagement teeth of the rotating member. The moving member thus expands into a first deformation-permitting portion and a second deformation-permitting portion in a cover plate, and expanded portions of the moving member oppose a first restriction portion configured by an axial center direction leading end face of a cylinder, and a second restriction portion of the cover plate.

A seatbelt pretensioning retractor assembly for use in a vehicle is provided. The seatbelt pretensioning retractor assembly includes a housing adapted for being mounted to a frame and having an interior cavity, a pretensioner tube having an arcuate and curved shape, a sprocket rotatably mounted to the housing and fixedly coupled to a spindle, a rod disposed within the tube and a guide plate having a guide portion and a rod guide. The rod exits the tube along a perimeter of the sprocket, and toward an arcuate landing surface of the guide portion. In addition, the guide plate further includes a couple of tabs and ribs for avoiding rattling of the pretensioner tube in normal use of the retractor assembly.

A seatbelt pretensioning retractor assembly for use in a vehicle is provided. The pretensioning assembly includes a tube in fluid communication with a gas generator and a driving element disposed therein that travels in a first direction in response to actuation of the gas generator. The driving element includes a polymer rod. A stopper is coupled to an end portion of the polymer rod. In one example, a seal member disposed between the gas generator and the stopper includes a head section and a skirt section. In another example, the tube has an opening that is adjacent to an exit to facilitate venting gas from the gas generator.

A pretensioner housing of a seatbelt system pretensioner and a method of forming the pretensioner housing. The pretensioner housing includes a sheet metal blank that is folded multiple times to form the pretensioner housing. The sheet metal blank has an integral mount for mounting a gas generator.

The invention refers to a load-bearing structural part (2) of a seat structure of a vehicle seat, which has a cavity (21), in which a belt retractor (40) is arranged.

A seatbelt tensioner for a seat belt retractor, having a pipe (1) with a tensioner drive wheel, a gas generator (10), a piston (3), and at least one mass body (4). The mass body (4) is drivable by gas from the gas generator (10) acting on the piston (3) between the gas generator (10) and a mass body (4). The mass body drives the tensioner drive wheel. The pipe (1) has a receiving section (5) with a first inner diameter (2), in which the piston (3) in its initial state is arranged with an initial-state outer diameter (8). The pipe (1) has a guide section (6) which adjoins the receiving section (5) and which has a second inner diameter (7). The second inner diameter (7) is smaller than the first inner diameter (2) and smaller than the initial-state outer diameter (8) of the piston (3).