| 摘要 |
The invention relates to a foldable umbrella frame having five ribs (IV), wherein the second rib, the third rib, and the fourth rib are formed to be solid rods with outer flat portion. The first rib is still U-shaped structure. The ribs are pivoted to form a frame. Branch ribs have inner hooks to connect with outer flat portion that provides a small volume of the umbrella in closed state for facilitating carrying by users.
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