| 摘要 |
A vented umbrella is resistant to inversion from the wind and effective in ventilation. The umbrella comprises a foldable frame, a lower canopy, and an upper canopy in a concentric covering relation with respect to lower canopy with a small overlapped peripheral area therebetween. A plurality of nonelastic ropes are provided each connected between the center portion of peripheral edge in respective sector of lower canopy and the upper ring. Hence, a plurality of openings are formed at the junction between sectors of upper and lower canopies in a fully extended condition. This also can save cloth and effect a simplified manufacturing process.
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