| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide an air film roof-like object which is lightweight, easy to assemble and disassemble, has a small storage space, and can be disassembled even everyday. SOLUTION: Polyester cloth is dip-coated with polyurethane, the weight is 48 g / m 2 , and the air permeability is 0.02 cc. / Sec · cm 2 and a hardness of 5 cm (cantilever method). The double structure portion is configured to include an upper surface film 2, a lower surface film 3, and an inner rib 4 that forms a Hohozue film, and the inner rib 4 is provided with a void 6 for communication, so that shape retention and stability are improved. However, assembly and removal can be done easily in a short time. |