| 摘要 |
PROBLEM TO BE SOLVED: To provide a push-button lock such that an unlock code can be easily retrieved.SOLUTION: A push-button lock includes: a housing which has a plurality of push buttons fitted on one surface to protrude and retract; an operation knob capable of changing the attitude of a stopper; rods for operation which are each displaced from a clear position to a push-in position when a push button is pushed; a plurality of retrieval pins which are fitted to rods for operation respectively and extend along axes of the rods for operation; and pin projection holes which are formed on the other surface of the housing such that the retrieval pins can project to the outside by inserting tip sides of the retrieval pins. According to whether a rod for operation displaced to a push-in position corresponds to an unlock code, it is determined whether when the rod for operation is displaced from the clear position to the push-in position by pressing the push button, the tip side of the corresponding retrieval pin projects out of the housing through the pin projection hole. |
