Patent EA-003450-B1 (EA)
Title: Door assembly
IPC: E06B1/00
Filed: 2002-04-08
Abstract: 1. A door assembly, comprising a door frame, consisting of a frame and attached a doorstop thereto, limiting a doorway, a door leaf hingedly connected to the door frame and a locking mechanism to lock the door leaf in a closed position, characterized in that the door frame is shifted into the doorway, the door frame is formed by a first metal profile, a part of which is arranged at an angle to the inner side of the doorway, forming a wedge-shaped clearance along the doorway contour with it, the clearance is filled with a concrete-containing material, and the doorstop is formed by a second metal profile, at least a part of its inner side forms a closed cavity with the frame along the doorway contour, the outer side of the doorstop forms a labyrinth clearance with the doorway face in the closed position. 2. The door assembly as claimed in claim 1, characterized in that the first metal profile consists of three rectangular portions, the first extreme of which adjoins the inner side of the doorway, the second extreme portion is disposed substantially perpendicular to the inner side of the doorway and forms a rest for the door leaf in the closed position , while the central portion is arranged at an angle to the inner side of the doorway and forms a first wall limiting said cavity formed along the doorway contour. 3. The door assembly as claimed in claim 2, characterized in that the second metal profile consists of three portions, the first extreme is straight in configuration and fastened on the first extreme portion of the door frame, the second extreme portion of the doorstop is also straight and fastened on the middle portion of the frame near its second extreme portion, wherein the central portion in its cross-section is shaped as a broken line consisting of four sections at an obtuse angle one to the other and forms a second wall limiting said cavity formed along the doorway contour. 4. The door assembly as claimed in claim 3, characterized in that the face of the door leaf is formed by a third metal W-shaped in cross-section profile and consists of four sections, two central of which are disposed at an obtuse angle to each other, while each extreme section is disposed substantially perpendicular to a corresponding central section. 5. The door assembly as claimed in claim 4, characterized in that the door leaf comprises two metal panels spaced from each other, each of them is fixed to the third metal profile by their faces from the inner side of the respective extreme portion. 6. The door assembly as claimed in claim 5, characterized in that a door anti-removable element is provided from the side of hinge connection of the door leaf with the door frame on the central portion of the third metal profile distant from the hinge connection, said element is formed by a fourth ¤ shaped in cross section metal profile and arranged with the door closed in the part of the labyrinth clearance having a mating form. 7. The door assembly as claimed in one of the preceding claims, characterized in that the door leaf comprises at least one stiffening rib formed by a fifth metal profile fastened between the metal panels of the door leaf. 8. The door assembly as claimed in one of the preceding claims, characterized in that a small frame is arranged along the perimeter of each metal frame from outside and formed by a sixth S-shaped in cross-section profile, one part of said profile is fixed to the respective extreme portion of the third metal profile and intended for arrangement packing material, while the other part forms a fastening element for arranging heat insulation material of the door leaf. 9. The door assembly as claimed in one of the preceding claims, characterized in that a locking mechanism is positioned in a metal cage rigidly fixed on the inner surface of one of the metal panels.