| 摘要 |
A vehicle safety belt retractor is provided with a magnetically actuated arresting mechanism responsive to deceleration of the vehicle for moving a pawl into engagement with a ratchet wheel mounted on the retractor shaft to prevent protraction of the belt. The arresting mechanism includes first and second magnets, each being provided with a plurality of substantially equally spaced poles. The first magnet is fixedly mounted on the shaft. The second magnet is slidably mounted on the shaft for limited movement longitudinally of the shaft and angularly relative to movement of the first magnet and is adapted to move the pawl into engagement with the ratchet wheel.
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