To provide a seat belt retractor which can avoid increase in size of outer diameters of a torsion bar and a locking base and moreover can lock the torsion bar to the locking base.SOLUTION: A seat belt retractor 3 is provided with a torsion bar 12 which is built in a spool 11 and which includes a connection part 12A which connects with the spool 11 on one end part and which includes a connection part 12B which connects with a locking base 13 on other end part and which absorbs and softens energy of an occupant by limiting load applied to a seat belt 4 using a rotational difference between the spool 11 and the locking base 13. A through hole 15A of a cylindrical part 15 of the locking base 13 is formed in a shape which allows the connection part 12A of the torsion bar 12 to pass and does not allow the connection part 12B to pass in a direction from a stem 14 side to the spool 11 side. The connection part 12B of the torsion bar 12 is locked in an internal part of the cylindrical part 15 of the locking base 13.SELECTED DRAWING: Figure 5

    【課題】トーションバー及びロッキングベースの外径の大型化を回避でき、かつ、トーションバーをロッキングベースに係止できる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、スプール11内に内蔵され、一端部にスプール11と連結する連結部12Aを有し、他端部にロッキングベース13と連結する連結部12Bを有し、スプール11とロッキングベース13との回転差によって、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トーションバー12を備える。ロッキングベース13の筒状部15の貫通孔15Aは、基部14側からスプール11側の方向で、トーションバー12の連結部12Aが通過でき、連結部12Bが通過できない形状で形成され、トーションバー12の連結部12Bは、ロッキングベース13の筒状部15の内部で係止される。【選択図】図5


    Access

    Download


    Export, share and cite



    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 :

    2021-12-09


    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



    Seat belt retractor and seat belt system including seat belt retractor

    UCHIBORI HAYATO | European Patent Office | 2015

    Free access

    Seat belt retractor and seat belt apparatus employing seat belt retractor

    OSADA KENJI | European Patent Office | 2016

    Free access

    SEAT BELT RETRACTOR AND SEAT BELT APPARATUS EMPLOYING SEAT BELT RETRACTOR

    OSADA KENJI | European Patent Office | 2015

    Free access

    PRETENSIONER, SEAT BELT RETRACTOR, AND SEAT BELT DEVICE WITH SAID SEAT BELT RETRACTOR

    SUZUKI HIDEYUKI / IURA YUSUKE / SHIOTANI MASAHIRO | European Patent Office | 2016

    Free access

    SEAT BELT RETRACTOR AND SEAT BELT DEVICE

    MIHARA ATSUSHI / KIMURA TAKAAKI / TAKAO MASATO | European Patent Office | 2021

    Free access