A seat belt pretensioner for use in a seat belt pretensioning retractor assembly includes a pretensioner tube in fluid communication with a gas generator, and a driving element with a piston disposed inside the pretensioner tube and formed a flexible elongated rod. At least a portion of an outer surface of the elongated rod spaced from an inside surface of the pretensioner tube defines at least one clearance space to be filled by the deformed elongated rod in the event that a gas pressure from the gas generator is applied to the piston when a sprocket is engaged with the elongated rod causing an overpressure condition in an actuation volume defined between the piston and the gas generator within the pretensioner tube.


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    Title :

    RETRACTOR PRETENSIONER ASSEMBLY RETRACTOR PRETENSIONER ASSEMBLY


    Additional title:

    RETRAKTORVORSPANNANORDNUNG FÜR RETRAKTORVORSPANNANORDNUNG
    ENSEMBLE PRÉTENDEUR DE RÉTRACTEUR


    Contributors:

    Publication date :

    2023-03-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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