Web structure for an umbrella is formed from a main rectangular piece and two or four lateral pieces fixed to the umbrella by support elements, with decorative motifs easily formed on lateral pieces

摘要

The umbrella web is formed from a main rectangular piece (11) and two or four lateral pieces (21) fixed to the umbrella by a number of support elements (31) The rectangular piece includes two side seams (211) and four vertices. Each lateral piece includes a side seam and a number of stretching points for each side seam. The side seam includes two ends, each being cut. The side seams of the lateral pieces are respectively combined with the side seams of the main rectangular piece so as to form seam zones on the cuts, exerting a stretching force so as to stretch the main rectangular piece.