| 摘要 |
A seat belt anchorage mechanism, particularly adapted for motor vehicles, which allows a seat belt anchorage to move with the seat during fore-and-aft adjustment of the seat for improved occupant comfort and convenience. The mechanism has a toothed track fixed to the vehicle structure with a rail attached to the seat cushion slidable along the track. The belt anchorage assembly has a pair of separated plates having an engaging shaft positioned in close proximity to the toothed track. The anchorage assembly is fastened to a slide rail by frangible fasteners. When a load above a predetermined level is applied to the anchorage, the fasteners fail and enable the engaging shaft to mesh with a toothed track, thus locking the track and rail together and restraining forward excursion of the anchorage.
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