| 摘要 |
An air-bag is formed from a single element of laminar material such as fabric. The element defines a rectangular region having linear side edges. This region has a shape and configuration equivalent to that of the air-bag when inflated. Each side edge of the region carries a protruding flap. There are infill elements between adjacent flaps. The flaps are inwardly folded to overlie the rectangular region. Each infill element lies between two respective inwardly folded adjacent flaps. The folded element may be secured to form an air-tight air-bag with reinforced corners.
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