Umbrella frame, has main double rib with U-shaped opening that is upwardly adjustable, and auxiliary rib whose inner end is shaped as internal clasp to hook into ring provided on outer section of main rib

摘要

The frame includes a main double rib (13) with three ribs (1, 2, 3), where an outer end of the main double rib is connected with a middle section of the rib (1). The main double rib has a U-shaped opening, which is upwardly adjustable. An auxiliary rib (14) that is a rod has an inner end, which is designed as an internal clasp (141) to hook into a ring provided on an outer section of the main double rib.