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).

A seatbelt retractor includes a housing and a spool rotatably supported by the housing. A torsion bar has a first end and a second end. The first end of the torsion bar is fixed to the spool, and the second end of the torsion bar is fixable relative to the housing. The seatbelt retractor includes a magnet and a rotor disposed adjacent the magnet. One of the magnet and the rotor being fixed relative to the spool and the other of the magnet and the rotor being rotatable relative to the spool. The rotor includes a conductive material.

A seatbelt retractor includes a spool, a piston, and a cylinder. The spool is rotatably coupled to a base by a piston and a cylinder. The piston is fixed to one of the base and the spool. The cylinder receives the piston and is fixed to the other of the base and the spool. A cutter is disposed between and fixed to one of the piston and the cylinder. The cutter is in engagement with the other of the piston and the cylinder.

In a load limiting device (10), especially for a seat belt in a vehicle, comprising a controllable braking device (16) which has a fluid-filled compartment (24) including a conduit (34) through which the fluid (23) can flow, an element to be decelerated (32) which is coupled to the seat belt, at least one sensor (18) for detecting vehicle operating data, especially an acceleration sensor, a sensor (20) for detecting the webbing extension, and a controller (22) for controlling the braking power of the braking device (16) as a function of the vehicle operating data measured and the webbing extension measured, the fluid (23) is a magnetorheological fluid and a control magnet is provided which is adapted to generate a variable magnetic field inside the conduit (34) and to vary the viscosity of the magnetorheological fluid inside the conduit (34).

A webbing take-up device includes a spool that is rotated in a take-up direction to take up webbing worn by an occupant and that is rotated in a pull-out direction by the webbing being pulled out, and a frame that rotatably supports the spool. The frame includes a fixed stay portion that is fixed to a vehicle body, and a rotation stop stay portion that is disposed spaced apart from the vehicle body and that by being engaged with the vehicle body is restricted from rotational displacement relative to the fixed stay portion.

A frame (10) for a vehicle seat belt retractor comprises a back part (12), two side legs (16) extending in parallel to each other starting from the back part (12), with a retaining aperture (18) for a belt reel being provided in each side leg (16), and a mounting structure for mounting the frame (10) fixed to the vehicle, wherein the mounting structure includes a retaining bracket (22) having a mounting hole (36) for a retaining means (50) and at least one deformable deformation element (46). Furthermore, in accordance with the invention a vehicle structure for mounting a belt retractor in a vehicle is provided comprising a body part (52) and a frame (10) according to the invention. Moreover, a sheet metal blank for such frame is provided.

A restraint system includes a housing, a spool rotatably coupled to the housing, a pinion fixed to the spool, a rack engaged with the pinion, and a piston attached to the rack and the housing. The piston is filled with a resilient material. The resilient material may be a heterogeneous mixture of a liquid and hydrophobic, nanoporous particles.

An energy absorbing seat belt retractor used with a seat belt assembly of a motor vehicle. The seat belt retractor includes a reel for winding and unwinding the seat belt and an elongated shaft, with the reel attached to the shaft. In one example, a movable disc is connected to and moves longitudinally along the shaft. At least one of the reel or movable disc includes a friction layer providing a friction surface such that when the movable disc is driven axially toward the reel there is frictional engagement between the reel and movable disc that absorbs impact energy on the occupant and limits the load applied to the seat belt.

A seatbelt retractor includes a base, a spool, a cylinder and a cylinder lock. The spool is rotatably coupled to the base and has a piston portion. The cylinder is engaged with the piston portion and therewith defines a first chamber. The piston portion is movable from a first position yielding a first chamber volume to a second position yielding a second chamber volume. The cylinder lock in a first condition rotatably fixes the cylinder to the base. Damping fluid is disposed in the chamber.

In a webbing take-up device, a first rotation section and a second rotation section are coupled by forming a first detachment prevention portion at a vehicle rear side end portion of a circular cylinder portion of the second rotation section. Moreover, a mounting portion of a torsion bar is inserted inside the vehicle rear side end portion of the circular cylinder portion in this state. This enables deformation of the vehicle rear side end portion of the circular cylinder portion to be suppressed, and enables deformation of the first detachment prevention portion to be suppressed.