An object of the present invention is to provide a time of, thin become stronger sheet with skeletal material in the wind and rain that sheet blows that were spread to be used in the field such as a commercially available plastic sheet (blue sheet). It has a A plastic sheet 1, a round steel bar 3 which is a plurality of skeletal material assembled at intervals to the plastic sheet. The number and spacing of the round steel bar 3, which is a skeletal material is optional and in inverse proportion to a distance interval, the intensity of the tension of the vinyl sheet 1 is increased, the sheet with skeletal material which are used to expand in situ , it is easily folding biased. .BACKGROUND【課題】市販ビニールシート(ブルーシート)を野外等で使用する時の、広げた薄いシートが吹く風や降雨に強くなる骨格材付シートを提供する。【解決手段】ビニールシート1と、当該ビニールシートに間隔をあけて組み付けられた複数本の骨格材となる丸型鋼棒3と、を有する。骨格材となる丸型鋼棒3の本数と間隔は任意であり、間隔の距離に反比例して、ビニールシート1の張力の強度が強くなる、広げて使用している骨格材付シートはその場で、安易に折り畳み片寄せられる。【選択図】図1
