Biometric security system for securing against unauthorized access to locking devices used in e.g. safety door, has bell-shaped cap with outer shape formed such that attachment points are not produced for application of lifting forces

摘要

The system has a bell-shaped safety cap (A) made of high strength material and placed on an actual closing device. An outer shape of the cap is formed such that attachment points are not produced for application of massive lifting forces for turning, tearing and lifting. The outer shape of the cap is round or oval. Usage of the massive force for unauthorized removal of the cap is prevented or impeded. The cap is connected with a door to be secured by welding, screwing and bonding. A structure is installed and retrofitted during new production of the door.