BURGLAR-RESISTANT DOOR Russian patent published in 2015 - IPC E05B47/02 

FIELD: construction.

SUBSTANCE: door is proposed, which comprises a door leaf, comprising a hole for a lock key, the second door leaf, a cut-in locking device arranged opposite to the first door web and opening in respect to it towards the opposite side, comprising a key hole and a cross bar made as capable of interaction with the appropriate response device, and a door frame, to which the first and second door leaves are fixed each by means of hinges. The specified cut-in locking device is located in the second door leaf with provision of the possibility to insert the appropriate key into a key hole via a hole for a lock key arranged in the first door leaf, and a response device arranged in the second door leaf. The door additionally comprises a connection plate fixed on the first door leaf and having a hole for a cross bar. The second door leaf has a hole for a plate, and as both door leaves close, it becomes possible to insert a plate into a hole for the plate, and the specified crossbar may pass through the specified hole for the cross bar into the response device with provision of plate blocking in a hole for the plate.

EFFECT: increased resistance of a door to break-in.

11 cl, 6 dwg