| 摘要 |
A seat sensor detects occupancy of a vehicle seat upon initial deflection of a portion of the seat caused by seating or removal of a predetermined weight. A seat follower is operable through a coupling means which comprises a slip clutch to operate a switch actuator means in the form of a turnable cam to actuate a switch means after a predetermined extent of seat deflection in either the upward or downward directions irrespective of the total deflection or the initial reference point for the deflection. The cam is limited to a short turning movement and the slip clutch allows the seat follower to continue to travel with additional seat deflection. The preferred seat follower is a cable wound on a reel, and the slip clutch comprises one clutch face on the reel and another clutch face on the cam.
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