| 摘要 |
A seat belt retractor has a frame (10), a spool (12) rotatably mounted in the frame and a blocking mechanism for selectively blocking rotation of the spool to prevent belt webbing from being withdrawn from the retractor. The frame has a threaded hole for a screw bolt permitting safe connection of the frame (10) to the vehicle bodywork. Mounting condition sensing devices are functionally inserted between the blocking mechanism and the screw bolt and effective to maintain the blocking mechanism in a blocking condition if and as long as an incomplete mounting condition is detected. The mounting condition sensing devices comprises a sleeve (22) adapted to be contacted by a front end of the bolt and to be pushed into a predetermined position by the bolt when a completed mounting condition is detected, therapy allowing release of the blocking mechanism.
|
