Window for buildings, has sliding pipe assembly with hinge assembly fastened on sliding pipe and installed in one of stiles to sustain rotation of sash

摘要

The window includes a pair of sliding pipe assemblies matched with each sash assembly (200a,200b). Each sliding pipe assembly includes a sliding pipe and a hinge assembly. The hinge assembly is fastened on the sliding pipe and installed in one of the stiles to sustain the rotation of the sash. The sliding pipe is slidable along the cavity of a horizontal frame.