| 摘要 |
A beach umbrella provides an elongated support shaft having a pointed distal end inserted into a soft surface, and a proximal folding canopy positioned below an upper terminal end of the support shaft. The folding canopy provides a fabric panel stretched over a plurality of ribs engaged with the support shaft and extending radially from it to form a downwardly convex external surface. A flexible strut has a grommet fitted over the upper terminal end of the support shaft and an opposing eyelet engaged with a tensioned securing line. The securing line is fixed at a distal end to a stake driven into the soft surface so the line forms a downwardly divergent angle with the support shaft. The flexible strut lies in contact with the external surface of the fabric panel and is shaped to engage one of the ribs such that the fabric panel is sandwiched between the rib and the flexible strut.
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