| 摘要 |
PROBLEM TO BE SOLVED: To provide a cup-shaped container capable of reducing a volume by folding up in a plate shape, and also holdable in a folded-up state without increasing the number of part items.SOLUTION: A cup-shaped container 1 comprises a bottom surface part 2 and a side surface part 3 extending upward from an outer edge part of the bottom surface part 2, and opens an upper surface, and is provided with a main folding guide groove 10 provided along a crossing position between a reference surface B for dividing the container into equal two parts in a vertical split shape and a lower part of the bottom surface part 2 and the side surface part 3 and an auxiliary folding guide groove 11 forming both end parts of the main folding guide groove 10 as a top part and extending toward the bottom surface part 2 in an inverted V shape from the top part, and a fastening part 6 for holding the side surface part 3 in a two-folded state along the reference surface B, is integrally provided in an upper end part of the side surface part 3. |
