DOOR UNIT WITH LOCK AND HINGE PROTECTIVE DOORS AND METHOD OF MANUFACTURING, ASSEMBLING AND MODERNISING DOOR UNITS WITH PROTECTIVE ELEMENTS Russian patent published in 2010 - IPC E06B3/00 

FIELD: construction.

SUBSTANCE: invention is related to the field of construction, namely to design of protective door units with special purpose. Door unit with lock and hinge protective doors comprises door leaf made of metal sheets and hingedly installed in door unit box, locking device in the form of crossbar locks, door unit box is made in the form of bent vertical and horizontal stands with external opening door strips and collars along external end of perimetre for box adjacency to wall and with slots along internal end of perimetre for interaction with horizontal and vertical crossbars of locking devices and non-dismountable labyrinth of door unit leaf; stands of box are rigidly connected to each other by means of ends; collars at stands of door unit box are arranged as continuation of opening door strip in the form of angle. Door leaf is made of bent external sheet with anti-dismountable labyrinth and bent internal sheet and stiffening ribs to form protective doors - lock, medium and hinge - with adjustable hinges to rotate hinge protective door. Cuts and holes are provided on sheets of door unit leaf for lock, deviator and vertical crossbars, keys, lock cylinders, handles, visual devices, latch, electromagnet and electromechanical locks, illumination and biometric devices.

EFFECT: invention will make it possible to provide protection against unauthorised access into premise.

35 cl, 15 dwg