| 摘要 |
A three-piece umbrella cover structure having main rectangular cloth and two side-cloths is provided for use with an umbrella having a plurality of umbrella ribs. The main rectangular cloth has two stitch sides and four vertexes. Each side-cloth has one stitch side and a plurality of raised points corresponding to the stitch side. The stitch side has two ends, each having an indent defined therein. The stitch sides of the side cloths are combined with the stitch sides of the main cloth, respectively, wherein the indents are combined with the stitch sides of the main cloth to form indent seaming portions to provide pulling force for stretching the main rectangular cloth.
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