| 摘要 |
FIELD: transportation of food-stuff during short periods of time. SUBSTANCE: bag is made in form of rigid box with cover; bag is made of cardboard and felt covered with polymer film. Bag is provided with cold accumulating material in form of pack which is placed in bag before use; one pack is placed in pocket provided in inner wall of cover and other pack is placed on bottom of bag according to its size. Box of bag is folded by bending lines found in center of lesser planes and by bending lines found on rectangular bottom of box (in center of larger plane); lines start from corners of this plane till intersection at distance equal to half length of lesser side of box. To obtain rectangular form of unfolded bag, it is additionally provided with rigid bottom and cover inserted inside it. EFFECT: ease of transportation of empty bag (containing no food-stuff) when necessary. |
