The invention discloses a safety belt winding device which comprises a metal framework, a mandrel and a clockwork spring. A first gear piece is arranged at the locking end of the mandrel, and the first gear piece is provided with a first locking tooth surface; a second gear part meshed with the first gear part is arranged on the metal framework; the safety belt winding device is further provided with a locking assembly, the locking assembly comprises a locking support, a locking plate and a driving mechanism for driving the locking plate to slide, and the locking plate is provided with a second locking tooth surface matched with the first locking tooth surface; the safety belt winding device is further provided with a detection device for detecting the angular speed of the second gear piece. When the angular speed of the second gear piece is larger than a preset angular speed reference value, the driving mechanism drives the locking plate to slide so as to lock the first gear piece andthe mandrel. The locking reliability of the locking device is ideal.

    本申请公开了一种安全带收卷装置,其包括金属骨架、芯轴、发条弹簧;芯轴在其锁定端设置有第一齿轮件,且第一齿轮件具有第一锁定齿面;金属骨架上设有与第一齿轮件啮合的第二齿轮件;安全带收卷装置还设置有锁定组件,锁定组件包括锁定支架、锁定板和驱动锁定板滑移的驱动机构,锁定板具有与第一锁定齿面配合的第二锁定齿面;安全带收卷装置还设置有检测第二齿轮件角速度的检测装置;当第二齿轮件的角速度大于预设的角速度基准值,驱动机构驱动锁定板滑移以实现对第一齿轮件和芯轴的锁定。本申请的锁紧可靠性较为理想。


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    Title :

    Safety belt winding device


    Additional title:

    一种安全带收卷装置


    Contributors:
    CHEN JUN (author) / RONG JUN (author) / WANG MENG (author) / LI JINBO (author)

    Publication date :

    2020-10-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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