| 摘要 |
PROBLEM TO BE SOLVED: To provide packing boxes that can be stacked easily, where the stacked upper and lower packing boxes are not displaced.SOLUTION: Packing boxes have a bottom face plate 1 and wall face plates 1, 2, 3 and 4 erected from the peripheral edge part of the bottom face plate. To a rear wall face plate 3 inside the wall face plates is connected a top face plate 6. Engaging pieces 10 and 10 protruding above the front wall face plate 2 are provided only near left and right end parts respectively of the front wall face plate. On the bottom face plate are provided engaged parts 9 and 9 formed of through-holes or notches. When packing boxes are stacked, the engaging pieces are inserted and engaged into the engaged parts. |
