| 摘要 |
PURPOSE: A packing paper box is provided to look excellent and not to have a bottom surface of a box not sagging despites of a weighty product. CONSTITUTION: A lower box(15) is formed with a zigzag type triple structure having an outer member(16), a middle member(17) and an inner member(18) having the same height folded and attaching as a single unit after coating an adhesive in every interface. A lid(20) is integrally extensively formed in an outer end of the inner member and is to be opened and closed by a folding line. A female/male type locking unit is installed in the top surface of the front bottom surface of the lid and the top surface of the upper box. The female/male type locking unit consists of a wedge piece formed in the outer bottom surface of the lid and an engagement hole formed in the top surface of the upper box. |
