US Patent 7451776 Portable awning with a collapsible supporting frame

An awning includes a plurality of peripheral poles, a plurality of iron screens, and a collapsible supporting frame. A lower top cloth covers a lower top frame of the collapsible supporting frame and is attached in such a way as to define a central opening, and an upper top cloth covers an upper top frame of the collapsible supporting frame. The upper top cloth has an area of projection larger than the area of the central opening of the lower top cloth. The upper umbrella disk and the middle umbrella disk are moveable into position by a positioning fixture.