| 摘要 |
The invention relates to a seat belt retractor comprising a seat belt spool (2) rotationally mounted on a frame (1) for winding and unwinding the seat belt, a blocking means (5) for blocking the rotation of the seat belt spool, a control element (6) by means of which the blocking means (5) can be actuated, a seat belt sensor mass (4) movably mounted on a support element (3) which rotates with the seat belt spool (2), a vehicle sensor mass (35) and a coupling device (14, 34) by means of which a moving connection can be established between the support element (3) and the control element (6) via the seat belt sensor mass (4) and/or the vehicle sensor mass (35). Said connection assures the transmission of a rotation of the seat belt spool in the direction of unwinding for actuating the blocking means. The support element (3) together with the seat belt sensor mass (4) positioned thereon and the control element (6) constitute a pre-assembled component unit (7). |
