To provide a seat belt retractor capable of performing more delicate EA load control.SOLUTION: A seat belt retractor 3 includes an EA mechanism 60 which limits a load applied to a seat belt 4 and absorbs and relaxes energy of an occupant. The EA mechanism 60 has a torsion bar 61 which is built into a spool 12, has one end connected to the spool 12 through a speed reduction mechanism 63 and the other end which can be locked by a lock mechanism 50, and absorbs energy by a rotation difference between the spool 12 and the lock mechanism 50, and a D-pin 62 which connects an output section on the torsion bar 61 side of the speed reduction mechanism 63 to the spool 12 and absorbs energy by deformation due to the rotation difference between the spool 12 and the output section.SELECTED DRAWING: Figure 5

    【課題】よりきめ細かいEA荷重コントロールが可能なシートベルトリトラクタを提供する。【解決手段】シートベルトリトラクタ3は、シートベルト4にかかる荷重を制限して乗員のエネルギを吸収緩和するEA機構60を備える。EA機構60は、スプール12内に内蔵され、一端部が減速機構63を介してスプール12に連結され、他端部がロック機構50でロック可能であって、スプール12とロック機構50との回転差によってエネルギを吸収するトーションバー61と、減速機構63のトーションバー61側の出力部とスプール12とを連結し、スプール12と出力部の回転差による変形によってエネルギを吸収するDピン62と、を有する。【選択図】図5


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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 :

    2019-09-12


    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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