Separation of a joining in a joining part of a closed cross-sectional structure of an upper cross member is suppressed and the rigidity of the upper cross member is ensured. A vehicular seatback frame structure is provided with resin side frames (21, 22), and an upper cross member (30) bridged over between upper parts of the side frames (21, 22). The upper cross member (30) includes a first member (31), and a second member (32) disposed under the first member (31). An opening part is provided in a lower part of the first member (31), the first member (31) has a traverse cross-sectional shape opening to the downward side, an opening part is provided in an upper part of the second member (32), and the second member (32) has a traverse cross-sectional shape opening to the upward side. The opening part of the first member (31) and the opening part of the second member (32) are bonded in a state of facing each other to form a closed cross-sectional structure.


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    Title :

    VEHICULAR SEAT BACK FRAME STRUCTURE


    Additional title:

    RAHMENSTRUKTUR FÜR FAHRZEUGSITZLEHNEN
    STRUCTURE DE CADRE DE DOSSIER DE SIÈGE DE VÉHICULE


    Contributors:

    Publication date :

    2021-03-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



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