PUSH-BUTTON LOCK

摘要

PROBLEM TO BE SOLVED: To provide a push-button lock to be used mainly in medical scene which has a relatively simple structure and can easily change the unlocking number. SOLUTION: In this push-button lock unlocked by selectively pressing pushbuttons 23a of a prescribed combination, a card 6 punched in a prescribed shape in conformation to the pushbuttons 23a is provided within the lock. The combination of pushbuttons 23a for unlocking can be changed by exchanging the card 6. Accordingly, the unlocking number can be easily changed.