| 摘要 |
<p>The present invention relates to a lock alert mechanism, which avoids the case in which a key (5) is left inattentively or obliviously on a door (1) for embodiments in which a key (5) is positioned into a key slot (10) on doors (1) for opening-closing the door (1), characterized by comprising at least one key position detector (6) formed in connection with said key slot (10) and at least one alert means (4) connected to said key position detector (6) in order to become activated when the key (5) is left in said key slot (10) for a certain period of time; or a key identifier means (15) by which the keys (5) are identified against the cases in which the keys (5) are lost.</p> |
