An energy absorber (100) to limit an acceleration force experienced by a heavy body, such as an occupant of a seat subjected to the acceleration of an aircraft crash, comprises a winding drum (10) mounted in rotation around a shaft (13), around which a traction line (11) is wound. The shaft is coupled mechanically to a brake (20) that immobilizes the shaft (13) in rotation when a torque applied to the shaft by the traction line is less than the maximum brake torque that can be generated by the brake and that when the shaft (13) is in rotation generates a torque that is approximately constant and equal to the maximum brake torque. A control element (40) acting on the brake (20) makes it possible to modify the value of the maximum brake torque and thus to adapt the energy absorber to the mass of the heavy body to maintain an acceleration experienced at a desired value for different masses.


    Access

    Download


    Export, share and cite



    Title :

    Absorbeur d'énergie pour siège anticrash et siège anticrash comportant un tel absorbeur d'énergie


    Additional title:

    Energy absorber for anti-crash seat and an anti-crash seat with such an absorber.
    Energieaufnehmer für einen Anti-Absturz-Sitz und Anti-Absturz-Sitz mit einem solchen Energieaufnehmer.


    Contributors:

    Publication date :

    2019-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    F16F SPRINGS , Federn / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



    ABSORBEUR D'ENERGIE POUR SIEGE ANTICRASH ET SIEGE ANTICRASH COMPORTANT UN TEL ABSORBEUR D'ENERGIE

    CECINAS LAURENT / TARAUD NICOLAS | European Patent Office | 2017

    Free access

    ABSORBEUR D'ENERGIE POUR SIEGE D'AERONEF

    DHERMAND JULIEN | European Patent Office | 2020

    Free access

    Dispositif absorbeur d’énergie

    MITIDIERI ENZO / DA COSTA PITO SERGIO / ANDRE STEPHAN et al. | European Patent Office | 2024

    Free access

    Dispositif absorbeur d’énergie.

    DA COSTA PITO SERGIO / KEZMANE ALI / DESTRIBATS FREDERIC | European Patent Office | 2023

    Free access

    Dispositif absorbeur d’énergie

    MITIDIERI ENZO / ANDRE STEPHAN / DA-COSTA-PITO SERGIO et al. | European Patent Office | 2025

    Free access