DOOR Russian patent published in 2018 - IPC E06B5/11 E06B3/14 E06B3/70 

FIELD: construction.

SUBSTANCE: door contains a door leaf and a door case having rectangular frames interconnected by door hinges that are designed to be mounted in the doorway and form a stepped gap between them along the perimeter with the doors closed and consisting of metal profiles. The door leaf frame is formed by a lock stand 6 and loopy stab 7, as well as upper jumper 8 and lower jumper 9, consisting of each of the profile of the leaf frame, made with two conjugated closed quadrangular chambers 10, 11 of different volume from which chamber 10 of smaller volume is formed projecting around the frame perimeter and is displaced to the edge of the chamber 11 of larger volume located between the edges of panels 2, 3 of the leaf. The profiles of racks 6, 7 and jumpers 8, 9 of the door leaf frame are provided with a profile 12 of external strapping installed to the wall of chamber 10 of a smaller volume with a projecting rib 13 parallel to the planes of panel 2, 3 and are provided with a detachable inner banding profile 14 with a protruding edge 15 parallel to the planes of the panels 2, 3 of the web provided to the wall of chamber 11 from the side opposite to chamber 10. Frame of the door case formed of vertical profile loopy stand 17, vertical profile lock stand 18, upper horizontal profile jumper 19, as well as horizontal profile of threshold 20. Each of these stand profiles 17 18 and jumper 19 of door case frame is made with average closed quadrangular chamber 21 of larger volume, for the opposite sides of which, two closed quadrangular chambers 22, 23 of smaller volume are interfaced with partitions. Threshold profile 20 is formed with a medium closed quadrangular chamber 45 of larger volume, on the opposite sides of which two quadrangular chambers 44, 46 of a smaller volume are interfaced with a partition. Threshold 20 has a brush 43 and a felt sealer 42 of the brush.

EFFECT: door provides increased sealing, sound and heat insulation, fire safety.

15 cl, 9 dwg