IMPROVED SQUIGGLE KEYS AND CYLINDER LOCKS FOR SQUIGGLE KEYS

摘要

Improved squiggle keys (50) and cylinder locks include a squiggle key groove(54) formed along a first broad surface of the squiggle key (50) and aplurality of bittings (56) formed along a second opposite broad surface of thesquiggle key (50). The cylinder lock includes a plurality of rotatable discs(40) that have groove-following elements (45) that are rotated via the groove(54) on the key. The rotatable discs (40) operate to prevent a plug of thecylinder lock from rotating unless a correct squiggle key (50) is insertedinto a keyway in the plug. The bittings (56) formed along the second oppositebroad surface of the squiggle key (50) are generally circular and have innerregions with a different depth than outer regions of the bittings (56). As aresult, tumbler pins (31-35) can be located along the inner and/or outerregions of the bittings (56) which enables increased keying capabilities andvariations and which enables a common lock to be operated by keys fordifferent cylinder locks.