A seat core material of the present invention is a seat core material for vehicle including: a thermoplastic resin expanded bead article; and a frame member embedded in a peripheral edge portion of the expanded bead article. The expanded bead article has two or more lightening parts in an area from a center portion as seen in a front-back direction to a rear side. A through or non-through slit is provided in a continuous part between the lightening parts or an area in front of the continuous part over a distance of 100 mm or less along a vehicle-width direction of the expanded bead article. The slit is closed at both longitudinal ends. It is possible to provide a seat core material with a sense of unity and a sufficient strength in which an expanded bead article becomes less deformed and the expanded bead article is very excellent in dimension accuracy even when a frame member is embedded in the expanded bead article and the expanded bead article and the frame member are integrated with each other.


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    Title :

    SEAT CORE MATERIAL


    Additional title:

    SITZKERNMATERIAL
    MATÉRIAU DE NOYAU DE SIÈGE


    Contributors:

    Publication date :

    2021-10-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

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



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