CORNER JOINT FOR ALUMINIUM FRAMES WITH A BUILT-IN SCREW-AND-NUT FIXING ELEMENT

摘要

Corner joints for aluminium sections with built-in screw-and- nut fixing element. It is composed of: a) the base (1) with the tightening screw (3) fitted into the hole (b) of the base with protuberances (c) which are locally configurated at the inner walls of the base; b) the base (2) with the nut fitted into the hole (b) of the base by pressing the inner walls of the base and two protuberances (d) which are internally configurated at the internal walls of the base. It has the advantage that it is composed uniquely of two accessories (the built-in nut and the base with a thigtening screw). This construction helps in facilitating the technician's work which is carried out in short time.