| 摘要 |
PROBLEM TO BE SOLVED: To allow a dripper to be stably placed on a cup for dripping and to have the function of wrapping contents by forming the dripper from a cardboard blank for excellent formability and shape retainability. SOLUTION: A cardboard blank 10, which comprises a dripping part D, which is formed by joining approximately trapezoidal side plates 1 to center can pieces 3 via perforations or a cutting line (a), extending gluing edges 4 from the diagonal sides of either one of the side plates 1 via folding lines (d), and providing at approximately the center of each folding line (d) a fan-shaped push-in piece 5 which is curved inward with the folding line (d) as its central axis, and hemispherical pieces of cardboard 2 further extended from the side plates 1 via folding lines (c), is folded in two at its center, the side plates are joined together using the gluing edges 4, and after the cut pieces 3 are removed, the dripping part is formed into a ship shape and at the same time the two hemispherical pieces of cardboard are folded back by about 90 deg. and formed into an approximately horizontal disc shape, with the push-in piece 5 retaining their shapes. |
