| 摘要 |
Relative axial motion of a pair of strut members is converted into rotation of a shaft which drives a rotatably mounted inertia element. Rotation of the shaft in the opposite direction drives a second rotatably mounted inertia element. The inertia elements are interconnected by a coil spring with the result that the inertia element driven directly by the shaft drives the other inertia element. At a predetermined acceleration, the inertia element driven by the spring will lag, and this lagging motion is used to actuate a braking action to limit the acceleration.
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