| 摘要 |
PROBLEM TO BE SOLVED: To propose an excellent synthetic resin cup which can be a waste with an extremely small volume by a simple operation after use, whose structure is simple and which is easy to manufacture. SOLUTION: A tab 5 is made to protrude on a rear face of a plate 2 of a raised bottom, a separating thinned line 6 with a special structure is provided on the bottom plate 2, and in addition a split groove 8 for holding a crushed cup after the bottom plate is separated is provided on the tab 5. The separated bottom plate is inserted into the crushed cup after use, and the cup is held by the split groove 8 to be disposed of in a small volume.
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