DOOR OF BUILDING AND DOOR HINGE Russian patent published in 2020 - IPC E05D3/06 E05D3/14 

FIELD: doors.

SUBSTANCE: invention relates to a building door with door frame (1), door leaf (2) and door hinge (3), wherein door hinge (3) comprises part (7) on the side of the box and part (8) on the side of the flap, connected to each other first (4) and second (5) hinges, wherein door hinge (3), based on closed position, has an opening angle of at least 135° until maximum open position is achieved, and hinge brackets (4, 5) form four-axis hinge device, in which first hinge bracket (4) is fixed on part (7) on side of box with possibility of rotation around first part axis (25) on box side, as well as on part (8) on flap side with possibility of rotation around first part axis (11) on flap side, and second hinged clamp (5) is fixed on part (7) on box side with possibility of rotation around second part axis (26) on box side, as well as on part (8) on flap side with possibility of rotation around second part axis (12) on flap side, and both hinge brackets (4, 5) are not directly connected to each other, is characterized by that part (8) on the side of the flap is fixed on narrow side (9) of door leaf (2), and axes (11, 12) of part on flap side in closed position are located inside door slit (5) between door flap (2) and door box (1).

EFFECT: disclosed is a building door.

20 cl, 7 dwg