| 摘要 |
A sensor for seat belt systems comprises a casing, an inertia body having at least a portion received in the casing for displacement axially thereof, and an output member received in the casing for displacement axially thereof and having a portion extending out of the casing so that displacement of the output member is transmitted to the outside of the casing. A set spring engaged between the casing and the inertia body biases the inertia body to a set position in the casing, and an actuator spring engaged between the casing and the output member biases the output member in a direction to displace it along the casing. A latch mechanism composed of two pairs of levers arranged in series and engaged between the output member and the inertia body prevents displacement of the output member in the absence of displacement of the inertia body in response to acceleration in excess of a predetermined acceleration.
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