To provide a seat belt retractor and a seat belt device that can prevent dropping of a limit load at the time of load level switching even when an energy absorption mechanism is configured to include torsion bars arranged in parallel.SOLUTION: A seat belt retractor 1 includes an energy absorption mechanism 5 configured to absorb motion energy of an occupant by limiting a load applied to a webbing at the time of operation of a lock mechanism 4. The energy absorption mechanism 5 includes a load application member (link plate 54) configured to temporarily increase a load input to a second torsion bar 52 when a second end portion 52b of the second torsion bar 52 starts rotating about an axis of a first torsion bar 51.SELECTED DRAWING: Figure 4

    【課題】トーションバーを並列に配置した構成を有するエネルギー吸収機構であっても負荷レベルの切り替え時における制限荷重の落ち込みを抑制することができる、シートベルトリトラクタ及びシートベルト装置を提供する。【解決手段】シートベルトリトラクタ1は、ロック機構4の作動時にウェビングに負荷される荷重を制限することによって乗員の運動エネルギーを吸収するエネルギー吸収機構5を備え、エネルギー吸収機構5は、第二トーションバー52の第二端部52bが第一トーションバー51の軸回りに回転を開始する際に第二トーションバー52に入力される荷重を一時的に増加させる荷重付加部材(リンクプレート54)を備えている。【選択図】図4


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    Title :

    SEAT BELT RETRACTOR AND SEAT BELT DEVICE


    Additional title:

    シートベルトリトラクタ及びシートベルト装置


    Contributors:

    Publication date :

    2021-04-08


    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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