| 摘要 |
PROBLEM TO BE SOLVED: To provide a simplified bellows-like cover enabling a person to know things preserved therein and capable of being repeatedly used by mounting a transparent or semi-transparent plastic cover sheet on a plurality of mountain- shaped frames arranged at predetermined intervals. SOLUTION: The shape of frames 2 as a framework of a cover is semi-circular or angle such as triangle, trapezoid, U-shaped, and the frames 2 are arranged at intervals of, for example, 50-100 cm. A transparent or semi-transparent, foldable and water-proof plastic cover sheet 3 is mounted on the frames 2. Two frames at each side of both ends of the cover are connected by demountable connection bars 7 for preventing the frames from falling when the cover is opened. A person can know things preserved therein, and the cover can be easily assembled and folded because of its lightweight. Further the sheet is not directly contacted with equipments preserved inside of the cover, the attachment of fat and oil can be prevented, and the cover can be repeatedly used.
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