| 摘要 |
<p>A vehicle sensor (1) for a seat belt retractor safety restraint comprising an inertial member (2) mounted so as to move under the influence of acceleration and deceleration forces, a pivoted pawl adapted to engage teeth (8) in a ratchet wheel (8) of the retractor to lock the retractor against webbing payout, and a ring washer (6) resting on the upper part of the ball (2) and adapted to restrain the movement of the ball (2) so that it only moves when the level of acceleration or deceleration exceeds a predetermined threshold. <??>The inertial member (2) comprises a ball (2) fixedly mounted in a plastics material cup which is mounted to pivot under inertial forces such as occur in a vehicle crash by engagement of a narrow neck portion in a mounting hole in a base member. <IMAGE></p> |
