| 摘要 |
Within a common tumbler chamber an adjacent plurality of dragged lock tumblers travel axially to an alignment arrangement, are returned to a constant misalignment arrangement by a common tumbler returning means, and are adaptable to couple a centrally rotatable lock plug to and from a lock cylinder. In certain embodiments, ribbed split-pin lock tumblers couple a splined plug to and from a splined cylinder, while in other embodiments non-ribbed split-pin lock tumblers couple a plug to a cylinder. Lock tumblers are also returned to constant misalignment by a plurality of biased members each of which is offset in spaced recesses in the surface of a common tumbler chamber.
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