PROBLEM TO BE SOLVED: To improve occupant protection performance at a secondary collision.SOLUTION: A vehicular seat belt device 10 comprises: a retractor 18 (a first winding device) that has a first pretensioner 22 and a first force limiter 24, and winds up a seat belt 16 in a drawable manner to store the belt; an additional winding device 34 (a second winding device) that has a second pretensioner 40 and a second force limiter 42, and permits the retractor 18 to wind and draw the seat belt 16; and a control device 82 that when detecting or predicting a front collision of a vehicle 12, activates the first pretensioner 22, and when detecting or predicting a secondary collision of the vehicle 12, activates the second pretensioner 40. In the seat belt device 10, even if the first force limiter 24 is activated at a primary collision and then cannot be reused, the second force limiter 42 can be activated at the secondary collision.SELECTED DRAWING: Figure 1

    【課題】二次衝突時の乗員保護性能を向上させる。【解決手段】車両用シートベルト装置10は、第1プリテンショナ22及び第1フォースリミッタ24を有し、シートベルト16を引出し可能に巻取って格納するリトラクタ18(第1巻取装置)と、第2プリテンショナ40及び第2フォースリミッタ42を有し、リトラクタ18によるシートベルト16の巻取り引出しを許容する追加巻取装置34(第2巻取装置)と、車両12の前面衝突を検知又は予知した場合、第1プリテンショナ22を作動させ、車両12の二次衝突を検知又は予知した場合、第2プリテンショナ40を作動させる制御装置82と、を備えている。このシートベルト装置10では、一次衝突時に第1フォースリミッタ24が作動されて再使用不能になった場合でも、二次衝突時に第2フォースリミッタ42を作動させることができる。【選択図】図1


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    Title :

    VEHICULAR SEAT BELT DEVICE


    Additional title:

    車両用シートベルト装置


    Contributors:

    Publication date :

    2018-03-01


    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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