| 摘要 |
PROBLEM TO BE SOLVED: To provide a tamper-resistant push button lock device capable of easily changing the unlocking number. SOLUTION: A plurality of push-buttons 10 retractably provided are formed on the surface side of a case member 8, the lock can be unlocked when pressing down a specified push button 10 and when the operating member 11 is operated in the retreating/entry direction of the lock member 12, it can be unlocked. Further, when pushing down the operation member 11, the tumbler 14 retained in the pushed state of the push button 10 can be reset. COPYRIGHT: (C)2005,JPO&NCIPI
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