The invention relates to a safety belt retractor. The safety belt retractor comprises a frame (1), a reel (3) rotatably supported in the frame for winding a webbing (2), a force limiting member (4) which fails when a predetermined load threshold value is exceeded, and a pre-tensioning device (10) having a drive wheel (6) coupled to a tape drum via the force limiting member, and the drive wheel is drivable in such a way that the tape drum rotates in the webbing take-up direction in order to pre-tension the webbing. The drive wheel is directly connected with the force limiting member on a first side facing the tape drum in a rotationally fixed manner, in addition to the rotationally fixed connection, the drive wheel is rotatably supported relative to the tape drum. Optionally, the safety belt retractor further comprises a locking wheel (9) which can be locked and to which the drive wheel is connected directly in a rotationally fixed manner on a second side facing away from the tape drum. The safety belt retractor is compact in structure and has a stable force limiting function.

    本发明涉及一种安全带卷收器,其包括:框架(1)、在框架中可转动地支撑的用于缠绕织带(2)的卷带筒(3);限力构件(4),其在超过预定的载荷阈值时失效;和预紧装置(10),其具有经由限力构件与卷带筒耦联的驱动轮(6),所述驱动轮能被驱动,使得卷带筒在织带卷收方向上转动,以便预紧织带。所述驱动轮在朝向卷带筒的第一侧上与限力构件直接地抗扭连接,除了该抗扭连接之外,驱动轮相对于卷带筒可转动地支撑。可选地,所述安全带卷收器还包括能被锁止的止动轮(9),所述驱动轮在背离卷带筒的第二侧上与止动轮直接地抗扭连接。该安全带卷收器结构紧凑并具有稳定的限力功能。


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    Title :

    Safety belt retractor


    Additional title:

    安全带卷收器


    Contributors:
    ZHAO WEI (author) / LIN ZHIHAN (author) / HUANG YONGLIANG (author)

    Publication date :

    2021-07-16


    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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