DOOR ASSEMBLY Russian patent published in 2005 - IPC

FIELD: building units, particularly doors.

SUBSTANCE: door assembly comprises door leaf arranged in door-case and rotating around vertical axis. Door leaf comprises rectangular metal frame made of the first composite profile, front, rear and intermediate metal sheets having peripheral parts arranged on corresponding members of the first composite profiles and fixedly connected to them. Door case is formed of the second composite profile. The first composite profile includes two similar profile members of opened cross-section. The second composite profile has three similar profile members of opened cross-section. Door assembly also comprises lock assembly including two locks with cross-bars. One lock is arranged in gap between intermediate and rear metal sheets and secured to the first composite profile. Another lock is located in gap between front and intermediate metal sheets and may be covered in closed position by cross-bar system of the first lock key hole made in intermediate metal sheet.

EFFECT: improved door assembly protection against breakage, enhanced manufacturability and increased heat- and noise isolation characteristics.

8 cl, 2 dwg