Door or window frame with fixed and opening sections made from metal, especially aluminum extrusions has insulating insert inside each section

摘要

The frame consists of fixed (2) and opening (1) sections made from metal, especially aluminum extrusions (6, 7), and each section has a hollow insulating insert (10, 31). The first insert (10) has a T-shaped section, with the leg of the T acting as a support for the glazed or other panel (22), and the crosspiece (12) fixed to the metal extrusion (6). The second insert is fitted between metal extrusions forming the fixed frame.