| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper container formed of a cardboard which can be easily and consistently fitted to various kinds of thick or thin cup holders. SOLUTION: A V-shaped cut line (3) is made in order to provide an inverse triangle (2) forming an insertion portion in the back surface (1), a horizontal cut line (4) is made outside of each end of a portion forming a remaining bottom side of the inverse triangle (2), and a cut line (5) perpendicular to a portion forming a bottom side is also made from the tip of the apex of the V-shaped cut line (3) cut in order to form the inverse triangle (2).
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