| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pull-up box made of paper which can be formed flat at the time of carrying and storing, and assembled without using a bonding agent as a main material at the time of use. SOLUTION: A clearance is formed between outer wall sections A1-D1 and inner wall sections A2-D2 assembled by bringing the folds of outer wall sections A1-D1 to be connected with around a box bottom section 11 into contact continuously with the folds of the outer wall sections A1-D1 and the inner wall sections A2-D2 assembled and connected with respectively through respective double line folds a1-d1 and a2-d2. Also protruded sections A15, A16 and C15, C16 formed on both faces of the inner wall sections A2 and C2 are set to be fitted into engaging holes B5, B6 and D5, D6 respectively formed on both ends of the inner wall sections B2 and D2 and fixed therein.</p> |
