Provided are a pretensioner, a retractor, and a seat belt device that can effectively reduce kinetic energy of an injected power transmission member. A power transmission unit 3 includes a power transmission member 31 that is engageable with external teeth 21 of the ring gear 2, a pipe 32 that contains the power transmission member 31, a gas generator 33 that is disposed at an end of the pipe 32, a piston 34 that receives gas generated from the gas generator 33 to press the power transmission member 31, a first stopper 35 that is disposed on an upstream side of the power transmission member 31, a second stopper 36 that is disposed between the power transmission member 31 and the piston 34, and a pretensioner cover 4 that defines a passage 41 for the power transmission member 31.


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    Title :

    PRETENSIONER, RETRACTOR, AND SEATBELT APPARATUS


    Additional title:

    VORSPANNER, RETRAKTOR UND SICHERHEITSGURTVORRICHTUNG
    PRÉTENDEUR, RÉTRACTEUR ET APPAREIL DU TYPE CEINTURE DE SÉCURITÉ


    Contributors:

    Publication date :

    2019-12-04


    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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