Door locking device with character code input device

摘要

The code input device (1) has two displays (6,7). The first display (6) is for the display of a code number series, e.g. 0-9 if the code to be entered is purely numeric. The second display is (7) is for display of a confirmed number in the secret input code by a neutral character such as a star. The operation procedure for the locking door also includes a step for the first input of a secret code. The code input device includes keys (2,3) to move up and down the first display.