| 摘要 |
PROBLEM TO BE SOLVED: To provide a grain storage bag to be folded into a compact size just in the state of attaching a support thereon and to be self-supported sufficiently for storing grains. SOLUTION: A self-supporting grain storage bag is constituted of a bag main body with a bottom and crossing faces formed respectively of side faces of square 2n shape, rods provided diagonally at least on one set of side faces facing each other and holding sections for holding the crossing sections of the rods, and the bag main body is self-supported into the square pillar shape by the rods.
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