| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylinder lock formed in a simple structure and having a changeable unlocking code. SOLUTION: This cylinder lock comprises a divided case 6 inserted into a housing 1 and a plug 5 inserted into the divided case 6 and slipping relative to the divided case when an unlocking key 4 with a true unlocking code forming recessed part 3 is inserted. The divided case 6 is divided into multiple parts in the axial direction. The appropriate quantity of the divided parts is slippable relative to the housing 1. The slipped state can be eliminated by performing a slip stop operation to a slip stopper 7. Rotating operation of the plug 5 using the unlocking key 4 in which the unlocking code forming recessed part 3 corresponding to the slippable divided case 6 is absent or different is made possible by making the divided case 6 into a slippable state. COPYRIGHT: (C)2008,JPO&INPIT
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