| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cylinder lock with a lock/unlock display function, which prevents external force from acting on a cam fitted in an inner cylinder when unauthorized external force is acted on a display member, prevents unauthorized unlock without exposure of an internal configuration part of the cylinder lock even when the display member is destroyed, and is excellent in workability, etc. since a display part is made easy to see by increasing size of the display member, and it is necessary to process only a fitting hole of a cylinder as for a notch hole of a door.SOLUTION: In a locked state, an engaging part 14 of a display member 10 is engaged into an engaging receiving part 31a of a cam 30, when force for rotating the cam 30 in an unlock direction is acted on by unauthorizedly operating the display member 10 from an outdoor side, the locked state is held since engagement between the engaging part 14 of the display member 10 and the engaging receiving part 31a of the cam 30 is released, the cam is not rotated, and a hub of a lock case is not actuated.</p> |
