| 摘要 |
The cup comprises a foldable wall sheet and a foldable bottom sheet to be joined in bonding with resp. adhesive portions. The wall sheet reinforeced with a fand strip (2) laterally across at the upper side has horizontal fold lines (5) and a semicircular recess cut out at the center ofthe bottom edge. The bottom sheet has a fold line (6) across the center of the sheet and is adhesive on the apper surface except for the central elliptical area. The two sheets folded along respective fold lines are joined by bonding the adhesive parts (4,4') to be stretched and inflated to a cup shape. The cup is handy to carry and use.
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