| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper cup which enables, with a lid put thereon, drinking at a smaller inclination than a full opening cup and makes content hard to spill.SOLUTION: A paper cup is provided with a lid, a projection tap 5 that opens and closes in a form that an opening edge projects outward so as to open a fan, at an arbitrary point of the opening edge 3 of the body, in a region with a width of about 2 cm with a position on a wall about 2.5 cm below the opening edge as a reference point, and a gusset with a folding line on both right and left faces when the tap opens outward. The outer peripheral edge of the lid has a groove 7 where the opening edge of the paper cup fits, and a flange 8 shallowly covering the paper cup downward so as to wrap it along its outer wall with two slits 9 at a width interval corresponding to the projection tap at an arbitrary point of the flange. |
