| 摘要 |
A restraint locking mechanism provides a double-radiused, double-rounded spring for biasing the bolt toward the jaw, and for resisting movement of the stop when the stop is in the double lock position. The resistance provided by the double-radiused, double-rounded spring to movement of the stop increases to a maximum level of resistance as the stop is moved toward the single lock position, and then decreases, as contrasted with providing maximum resistance at the beginning of the stop's movement, and no resistance thereafter. The double-radiused, double-rounded spring design provides for improved fatugue resistance in the spring.
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