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 a plurality of bittings (56) formed along a second opposite broad surface of the squiggle 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 the cylinder lock from rotating unless a correct squiggle key (50) is inserted into a keyway in the plug. The bittings (56) formed along the second opposite broad surface of the squiggle key (50) are generally circular and have inner regions with a different depth than outer regions of the bittings (56). As a result, tumbler pins (31-35) can be located along the inner and/or outer regions of the bittings (56) which enables increased keying capabilities and variations and which enables a common lock to be operated by keys for different cylinder locks.