PROBLEM TO BE SOLVED: To make a contribution for suppression of breakage at the time of rear end collision.SOLUTION: A seat back frame 10 is equipped with a back panel 36 made of a sheet metal which is bridged between rear end parts of lower parts of right and left side frames 32 and is fixed to both the side frames. The back panel 36 has uneven-shaped parts 46 and 48 which are so folded that concave and convex are alternately arranged in a sheet width direction. Thus, when an excessive load from a crewman P, who inertially moves to a sheet rear side at the time of rear end collision, is inputted to the back panel 36, the back panel 36 is elongated at the uneven-shaped parts 46 and 48, thereby the load is dispersed, and a tensile load, which is given onto a fixation part 42 of the back panel 36 and the right and left side frames 32, is reduced. Consequently, breakage of other members such as the fixation part 42, the right and left side frames 32 and so on can be prevented or suppressed.SELECTED DRAWING: Figure 1

    【課題】後面衝突時における破損の抑制に寄与する。【解決手段】シートバックフレーム10は、左右のサイドフレーム32の下部における後端部間に架け渡されて両者に固定された板金製の背面パネル36を備えている。この背面パネル36は、シート幅方向に凹凸が交互に並ぶように曲げられた凹凸形状部46、48を有している。このため、後面衝突時にシート後方側へ慣性移動する乗員Pからの過大な荷重が背面パネル36に入力された際には、背面パネル36が凹凸形状部46、48において伸長されることにより上記の荷重が分散され、背面パネル36と左右のサイドフレーム32との固定部42に加わる引張り荷重が低減される。これにより、当該固定部42及び左右のサイドフレーム32等の他の部材が破損することを防止又は抑制できる。【選択図】図1


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    Title :

    SEAT BACK FRAME AND VEHICLE SEAT


    Additional title:

    シートバックフレーム及び車両用シート


    Contributors:

    Publication date :

    2016-02-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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