| 摘要 |
An umbrella is disclosed which includes a frame having a shaft, a plurality of ribs pivotally mounted to the frame, a plurality of stretchers adapted to extend the ribs to angular positions with respect to the frame, and a combined cover, which is structured to provide wind vents in the regions between the ribs. The combined cover includes a first cover panel having a generally circular configuration and being positioned over the ribs. A second cover panel having a generally annular configuration is also positioned over the ribs at a location radially outward of the first cover panel, the first cover panel having a radially outermost dimension greater than the radially innermost dimension of the second cover panel such that the first cover panel overlaps at least a portion of the second cover panel to prevent water from passing thereby. The second cover panel is configured and dimensioned at the radially innermost marginal edge portion in the region of each rib to have a generally saw-tooth shaped portion which facilitates respective attachment with respect to each rib by folding the saw-tooth shaped portion over the rib, and attaching the folded portions together by stitch lines. The folded saw-tooth shaped portions maintain the first cover panel and the second cover panel in spaced relation between adjacent pairs of ribs by causing the innermost marginal portions of the second cover panel to assume a spaced position below the corresponding portions of the first cover panel, while the innermost marginal portions of the second cover panel are also maintained in a taut condition to maintain the space between the panels.
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