Top-hung window

Abstract

A window comprising a frame structure and a relative to the frame structure openable, top-hung sash structure with an insulating pane (,), a pivoting hinge provided at the top members (,) of the frame and sash structures, the axis of which pivoting hinge is defined by engagement between a hook member (,) integral with the metal sheet profile of the sash top member and a hinge pin forming member (,) of a fitting member (,) connected with the frame top member, the hook member (,) being substantially V-shaped and the fitting member (,) substantially L-shaped. For maintaining the engagement between the hook member and the hinge pin forming member securing means in the form of holding means (,) are provided, which are fastened to at least one adjacent pair of the side members (,) of the frame and sash structures at a comparatively short distance from the axis of the pivoting hinge and which hold the V-shaped hook member (,) and said hinge pin forming member (,) in mutual engagement, but which, when turning the sash structure beyond said opening angle range, allow removal of the sash structure from the frame structure.