Frame for casement windows or doors has a cladding or glazing, an inner side formed of a plastic base part contains several hollow cavities and an outer side is formed of a metal part

摘要

The window or door frame has a cladding or glazing (12), an inner side (14) formed of a plastic base part (2) containing several hollow cavities (5) and an outer side (13) formed of a metal part (3). The cladding or glazing is held in place by a glass strip or glass retaining cavity (8) in the base part on the inner side and by the metal part on the outer. The frame's base part does not require additional metal strengthening but the metal part of the outer side has a reinforcing hollow cavity (4).