The safety belt retractor comprises a support and a reel rotationally connected to the support, the reel is connected with a safety belt, the support is fixedly connected with a retracting and releasing motor, a vehicle-mounted sensing component and an inner toothed plate, the first end of the reel is connected with a coil spring reset piece, the second end of the reel is connected with a locking disc, and the locking disc is connected with the reel. A locking disc is connected to the first end of the reel, a locking piece in linkage fit with the inner toothed plate is connected to the locking disc, the vehicle sensor sensing component is in linkage fit with the locking disc, the second end of the reel is further connected with a pre-tightening clutch component, the pre-tightening clutch component is located on the side, away from the support, of the locking disc, and the pre-tightening clutch component is in linkage connection with the winding and unwinding motor through a pre-tightening transmission component. The pre-tightening clutch component can cut off transmission cooperation between the reel and the pre-tightening transmission component, so that the rotating shaft of the retracting and releasing motor cannot passively move along with the reciprocating motion of the safety belt, damage to the mechanical performance of the retracting and releasing motor is avoided, and the service life and the mechanical stability of the retracting and releasing motor are guaranteed.

    本发明公开了一种带自动松紧的安全带卷收器及安全带装置,包括支架和转动连接在支架上的卷轴,卷轴上连接有安全带,支架上固定连接有收放电机、车敏感应构件和内齿板,卷轴的第一端连接有卷簧复位件,卷轴的第二端连接有锁止盘,锁止盘上连接有与内齿板联动配合的锁止片,车敏感应构件与锁止盘联动配合,卷轴的第二端还连接有预紧离合构件,预紧离合构件位于锁止盘远离所述支架的一侧,预紧离合构件通过预紧传动构件与所述收放电机联动连接。本发明中预紧离合构件能够切断卷轴与预紧传动构件之间的传动配合,使得收放电机的转轴不会因安全带的往复运动而被动随动,避免了对收放电机机械性能的损害,保证了收放电机的使用寿命和机械稳定性。


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    Title :

    Safety belt retractor with automatic tightening function and safety belt device


    Additional title:

    一种带自动松紧的安全带卷收器及安全带装置


    Contributors:
    WANG BIFU (author) / YANG XULIANG (author) / ZHA GENRONG (author)

    Publication date :

    2025-03-28


    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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