To provide a vehicle seat fastening structure which enables the length of a bolt to be reduced when a movable rail and a cushion frame are fastened while being spaced apart.SOLUTION: In one embodiment of the present disclosure, there is provided a fastening structure in which a cushion frame forming the framework of a seat cushion for a vehicle seat is fastened to a movable rail with a bolt and a nut while being spaced apart therefrom in a vertical direction. The cushion frame comprises a bottom wall extending in a seat width direction and in a seat front-rear direction. The nut comprises: a cylindrical body penetrating the bottom wall; a screw groove which is provided in the inner surface of the body and allows the bolt to be engaged therewith; and a flange part projecting from the body in a radial direction. The length of the nut in a center axis direction is greater than a space distance between the upper surface of the movable rail and the upper surface of the bottom wall of the cushion frame in a state in which no impact is applied to the cushion frame. The flange part is provided in an area at a distance from an insertion opening for the bolt in the nut which is greater than the space distance.SELECTED DRAWING: Figure 4

    【課題】可動レールとクッションフレームとを離間して締結する際に、ボルトの長さを短縮できる乗物用シートの締結構造を提供する。【解決手段】本開示の一態様は、乗物用シートのシートクッションの骨格を構成するクッションフレームを可動レールに対し鉛直方向に離間させながらボルト及びナットにより締結する締結構造である。クッションフレームは、シート幅方向及びシート前後方向に延伸する底壁を有する。ナットは、底壁を貫通する円筒状の本体と、本体の内面に設けられ、ボルトが螺合可能なネジ溝と、本体から径方向に突出する鍔部とを有する。ナットの中心軸方向長さは、クッションフレームに衝撃が加わっていない状態における、可動レールの上面とクッションフレームの底壁の上面との離間距離よりも大きい。鍔部は、ナットにおけるボルトの挿入口からの距離が離間距離よりも大きい領域に設けられる。【選択図】図4


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    Title :

    VEHICLE SEAT FASTENING STRUCTURE AND VEHICLE SEAT FASTENER


    Additional title:

    乗物用シートの締結構造、及び乗物用シート用締結具


    Contributors:

    Publication date :

    2018-12-06


    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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