| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a folding packing carton for which the inside is covered with highly waterproof thin material and joining at necessary parts can be made with an inexpensive adhesive agent. SOLUTION: Side walls 2 and 2 on the right and the left and side walls 3 and 4 on the front and the rear are provided in continuity respectively at edges being opposite in one direction and edges being opposite in another direction of a bottom 1 formed with its inside covered with thin material made of synthetic resin film or the like. Diagonal creases 10... rising diagonally upward from lower corners of the side walls 2 and 2 on the right and the left are provided while first joining flaps 6 are provided in continuity at the edges of the side walls 2 and 2 on the right and the left. Each of the first joining flaps 6 is made in a size suitable for overlapping only on the end of a triangular part 2a on the upper part of the diagonal crease. Second joining flaps 7... are provided in continuity at the edges of the side walls 3 and 4 on the front and the rear, and each of the second joining flaps 7... is connected to each of the first joining flaps with the diagonal crease placed in between. The second joining flap 7 is larger in size than the first joining flap 6 and both of the flaps are stuck, overlapping on the triangular part 2a.</p> |
