To effectively improve strength of a back frame.SOLUTION: A back frame 1 effectively improves strength at a cross-point Po, that is, a corner part of a panel material 3 in which: a first flange part 52 is welded at at least one side portion divided by a diagonal center line Lo or at a portion crossing the diagonal center line Lo; second flange parts 53, 54 are respectively welded at one side portion divided by the diagonal center line Lo and at the other side portion; and a second reinforcement member 7 at the cross-point Po side is welded with a first wall part 51A while overlapping with the first wall part 51A of a first reinforcement member 5.SELECTED DRAWING: Figure 9

    【課題】 バックフレームの強度を効果的に向上させる【解決手段】 第1フランジ部52は、対角中心線Loを挟んで少なくとも一方側、又は当該対角中心線Loを横切る部位にて溶接され、第2フランジ部53、54は、対角中心線Loを挟んで一方側及び他方側それぞれの部位にて溶接されている。そして、第2補強部材7の交差点Po側は、第1補強部材5の第1壁部51Aに重なった状態で当該第1壁部51Aに溶接されている。これにより、本実施形態に係るバックフレーム1では、上記交差点Po、つまりパネル材3の角部における強度を効果的に向上させることができる。【選択図】 図9


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    Title :

    VEHICLE SEAT BACK FRAME


    Additional title:

    乗物シート用バックフレーム


    Contributors:

    Publication date :

    2025-01-24


    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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