A seatbelt retractor includes a base (48, see fig 4), a spool 50, a cylinder 55, a sleeve 83 and a cylinder lock (58, see fig. 9). The spool is rotatably coupled to the base and has a piston portion 70. A smaller initialization piston 87 extends from the piston portion. The cylinder is engaged with the piston portion and therewith defines a first chamber 88. The sleeve is within the cylinder and receives the initialization piston. The sleeve and the initialization piston define an initialization chamber 85. The cylinder lock in a first condition rotatably fixes the cylinder to the base. Damping fluid is disposed in the chamber. The piston and initializing piston may be movable from a first position to a second position where the fluid is moved from one main chamber to the initialization chamber. The piston may have threads and the cylinder may have threads which are in threaded engagement with each other. The retractor may also comprise a pressure relief valve disposed across the sleeve aperture. Finally, the damping fluid may be a heterogeneous mixture which includes hydrophobic nanoporous particles with a liquid.


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    Titel :

    Load limiting seatbelt retractor


    Beteiligte:

    Erscheinungsdatum :

    09.01.2019


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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