KEYHOLE CONFIRMING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a keyhole confirming device simple in assembling work, and easy in maintenance. SOLUTION: A light accumulating member 18 is formed in a ring shape around a key cylinder 17. The light accumulating member 18 absorbs the light in the daytime or at illumination receiving time. A keyhole can be easily confirmed by illuminating the keyhole 19 of the key cylinder 17 by naturally emitting this received light in the dark such as night. COPYRIGHT: (C)2004,JPO