| 摘要 |
A vehicle seat hinge has a fixed first cheek plate, a moving second cheek plate provided with an inwardly-directed circular set of teeth, and at least one slug suitable for co-operating with the teeth of the moving cheek plate, said slug being radially displaceable by means of a cam which is controlled by an actuator device to lock the hinge in the event of the vehicle being subjected to a predetermined level of impact.
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