| 摘要 |
PROBLEM TO BE SOLVED: To provide a key device capable of improving visibility of identification characters displayed on the key device.SOLUTION: A key device 2 is attached on a surface of a safe deposit box door 10, which has lock holes and is mounted rotatably around a predefined rotating shaft, and allows a specific authentication key 23 to use the lock holes. The safe deposit box door 10 is equipped with: a chassis part capable of moving between a shielding position to shield the lock holes and an open position to expose the lock holes; and an unlocking mechanism part allowing the chassis part to move from the shielding position in response to the specific authentication key 23 on its surface. The chassis part comprises: a curve surface facing forward on the safe deposit box door 10, which is convexed from both ends to a center in a horizontal direction, and a display part 212 on which identification characters are displayed. |
