To provide a head protection airbag which can secure quick expansion of a front main expansion part and secure quick inflow of expansion gas from the front main expansion part to a sub expansion part when an internal pressure increases.SOLUTION: A head protection airbag includes: a bag body 30; and an inflow port part 22 which allows expansion gas from an inflator to flow into the bag body. The bag body includes: a front main expansion part 35; a rear main expansion part 37; a gas supply passage part 33 which causes the expansion gas from the inflow port part to flow into the front main expansion part and the rear main expansion part; and a sub expansion part 39 which allows the expansion gas from the front main expansion part to flow thereinto when an internal pressure increases. A front partition part 61 which partitions the sub expansion part from the front main expansion part is disposed at a front side relative to a front end 57 of an upper partition part 56, a rear side inflow opening 40 and a lower side inflow opening 41 serving as openings, which allow the expansion gas to flow into the sub expansion part, are provided at a rear side and a lower side, and the front partition part 61 is disposed in an island-like form separated from a portion of a non-inflow part 50 in a surrounding area.SELECTED DRAWING: Figure 2

    【課題】前主膨張部の迅速な膨張を確保でき、かつ、内圧上昇時の前主膨張部からの迅速な副膨張部への膨張用ガスの流入を確保できる頭部保護エアバッグを提供すること。【解決手段】バッグ本体30と、インフレーターからの膨張用ガスをバッグ本体に流入させる流入口部22と、を備える。バッグ本体は、前主膨張部35、後主膨張部37、流入口部からの膨張用ガスを前主膨張部と後主膨張部とに流すガス供給路部33、及び、内圧上昇時の前主膨張部からの膨張用ガスを流入させる副膨張部39、を備える。副膨張部と前主膨張部とを区画する前区画部61が、上区画部56の前端57の前方側に配置され、後方側と下方側とに、膨張用ガスを副膨張部に流入可能な開口となる後側流入用開口40と下側流入用開口41とを設けて、周囲の非流入部50の部位から離れた島状に、配設されている。【選択図】図2


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    Titel :

    HEAD PROTECTION AIRBAG


    Weitere Titelangaben:

    頭部保護エアバッグ


    Beteiligte:
    HAYASHI SHINJI (Autor:in) / OKUHARA MASAAKI (Autor:in) / IIDA TAKASHI (Autor:in) / JINNAI RYOSUKE (Autor:in) / AIKAWA KUNIHIRO (Autor:in) / IKENOHATA SHO (Autor:in) / SATO JUN (Autor:in)

    Erscheinungsdatum :

    2019-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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