PROBLEM TO BE SOLVED: To provide a back frame structure of a vehicular seat, which is configured so as to suppress increase in kinds of components and have left and right side frames with different bending strength.SOLUTION: The back frame structure of a vehicular seat has a right side frame 11 and a left side frame 12 extending in a vertical direction, and an upper frame 13 connecting upper end parts of the right side frame 11 and the left side frame 12 to each other like a bridge. Respective cross sections of the right side frame 11 and the left side frame 12 are certain closed cross sections or opened cross sections, parts of whose closed cross sections are opened. A shape of a visible outline of the cross section of the right side frame 11 and a shape of a visible outline of the cross section of the left side frame 12 are line-symmetrical shapes with respect to left and right center lines, and a cross-sectional secondary moment of the cross section of the right side frame 11 is larger than a cross-sectional secondary moment of the cross section of the left side frame 12.SELECTED DRAWING: Figure 1

    【課題】乗物用シートのバックフレーム構造において、部品種類の増加を抑制して左右のサイドフレームの曲げ強度が異なる構造を提供する。【解決手段】上下方向に延びる右サイドフレーム11及び左サイドフレーム12と、右サイドフレーム11の上端部側と左サイドフレーム12の上端部側との間を架け渡し状に連結するアッパフレーム13と、を有する。右サイドフレーム11と左サイドフレーム12は、それぞれ、横断面が一定の閉断面又は閉断面の一部を開いた開断面である。右サイドフレーム11の横断面の外形線形状と左サイドフレーム12の横断面の外形線形状とは左右の中心線に関して線対称形状である。とともに、右サイドフレーム11の横断面の断面二次モーメントは左サイドフレーム12の横断面の断面二次モーメントより大きい。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    BACK FRAME STRUCTURE OF VEHICULAR SEAT


    Additional title:

    乗物用シートのバックフレーム構造


    Contributors:

    Publication date :

    2017-11-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet



    VEHICULAR SEAT BACK FRAME STRUCTURE

    YASUIKE SHIGEAKI / KOMURA SHOGO / SAKURAI AKIHIRO et al. | European Patent Office | 2018

    Free access

    VEHICULAR SEAT BACK FRAME STRUCTURE

    YASUIKE SHIGEAKI / KOMURA SHOGO / SAKURAI AKIHIRO et al. | European Patent Office | 2021

    Free access

    VEHICULAR SEAT BACK FRAME

    KAMIYA SHINJI / KIMURA KOJI | European Patent Office | 2021

    Free access

    BACK FRAME STRUCTURE OF VEHICULAR SEAT

    MIZOBATA HIROSHI / SUZUKI HIROYUKI / AKAIKE FUMITOSHI | European Patent Office | 2017

    Free access

    BACK FRAME STRUCTURE OF VEHICULAR SEAT

    MIZOBATA HIROSHI / SUZUKI HIROYUKI / WATANABE HIROFUMI | European Patent Office | 2017

    Free access