| 摘要 |
A fully foldable storage box includes a soft bottom, and four hard side boards perpendicularly coupled to four edges of the bottom, and edges of the side boards are connected with each other to constitute a structure having a first folding line along each of four edge corners of the storage box, and a second folding line is disposed perpendicularly at the middle of two selected corresponding lateral boards and a third folding line is disposed perpendicularly at a side of the two lateral boards and proximate to the rear board, such that support strips are formed between the two lateral boards and the rear board respectively, and a liftable hard bottom board is coupled to an internal bottom edge of the rear board, so that and the bottom board can be stacked onto the soft bottom to constitute a fully foldable storage box.
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