To improve mountability while ensuring silencing performance, in a configuration in which an inflator is mounted on an upper part of a vehicle seat.SOLUTION: An airbag device 30 comprises: an inflator 60 mounted on an upper part of a vehicle seat 12, and generating gas upon a vehicle collision; an airbag 32 to which the gas from the inflator 60 is supplied, and which is inflated and deployed from the upper part of the vehicle seat 12 toward a seat front side; and a diffuser 62 for distributing the gas to the airbag. The diffuser 62 comprises: a connection part 62A connected to the inflator 60; and a plurality of branch parts 62B branching from the connection part 62A and each connected to the airbag 32. A silencing part for reducing sound pressure of the gas is provided in the connection part 62A and the plurality of branch parts 62B.SELECTED DRAWING: Figure 2

    【課題】車両用シートの上部にインフレータが搭載される構成において、消音性能を確保しつつ、搭載性を向上させる。【解決手段】エアバッグ装置30は、車両用シート12の上部に搭載され、車両衝突時にガスを発生するインフレータ60と、インフレータ60からのガスが供給され、車両用シート12の上部からシート前方側へ膨張展開するエアバッグ32と、上記ガスをエアバッグに分配するディフューザ62とを備えている。ディフューザ62は、インフレータ60に接続された接続部62Aと、接続部62Aから分岐してそれぞれエアバッグ32に接続された複数の分岐部62Bとを有している。接続部62A及び複数の分岐部62Bには、上記ガスの音圧を低減する消音部が設けられている。【選択図】図2


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    Title :

    AIRBAG DEVICE AND OCCUPANT PROTECTION APPARATUS


    Additional title:

    エアバッグ装置及び乗員保護装置


    Contributors:

    Publication date :

    2025-02-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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