SAFETY SYSTEM PREVENTING DOOR LEAF FROM A VIOLENT OPENING.

摘要

The security system to prevent a door wing being opened by force consists of at least two horizontal sliding cylindrical door bars (5) located in the housing 6). Each bar is equipped with a control pin (4) located in the oblique hole (3) of the vertical flat drawbar (2) movable in the two leading rings (7) through the safety lock (1). All the oblique holes (3) are open on one side of the flat drawbar (2), which is also equipped with a cavity (10) for the securing bar (11) of the safety lock (12) and one of its ends may extend into the horizontal bar (9). The bearing construction built into the face edge of the door leaf consists of a fixing semi-frame (8) which is firmly connected to the housings (6) of the cylindrical door bars (5) and the guide ring (7).<IMAGE>