| 摘要 |
PURPOSE: A variable form packing box is provided to control the movement of contents inside the packing box using a backward movement preventing unit. CONSTITUTION: A variable form packing box includes an upper box(130), a lower box(160), and a supporter(170). The upper box includes an upper inner box(110) and an upper outer box combined with each other, and an opening on the lower side. The lower box includes a lower inner box and a lower outer box combined with each other, and opens and closes the lower side of the upper box. The supporter is fixed to the lower inner and outer boxes, and is inserted into the upper box.
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