DOOR HINGE Russian patent published in 2016 - IPC E05D7/00 

FIELD: construction.

SUBSTANCE: invention relates to construction equipment, and more particularly to protective structures, which are used in entrance doors made of aluminium profiles with concealed fastening loops, enabling control and access to room. Frame hinge part of door is designed as a lower half-loop containing lower support bracket with holder, set screw pre-fixation of latter in frame profile, two clamping screws with cylindrical head and hexagon socket wrench engaged lock by pressing a profile frame clamp lower support bracket, configured as a cylindrical tube casement portion is formed as upper half-loop, comprising an upper bracket holder, setscrew preliminary fixation of latter on sash profile, two clamping screws with cylindrical head and hexagon socket engaged fixation by clamping clamp to profile of upper arm of leaf, configured as a cylindrical tube.

EFFECT: technical result of invention is to increase service life, enhancing reliability, load-bearing capacity of door hinges, as well as provision of anti-burglar door and reducing its cost when installing hinge thereon.

1 cl, 16 dwg