| 摘要 |
PROBLEM TO BE SOLVED: To provide a rucksack possible to be used suitably as a cart by using casters and possible to be carried by folding, when not used. SOLUTION: In this rucksack, casters 4 are mounted on the outside surface bottom part 24 of rucksack main body 2 expandably and foldably. An antifouling cover 301, which covers the casters 4, when they are folded, is mounted on the outside surface bottom part 24 of rucksack main body 2 detachably and attachably. The fixing means that fixes a storage packet for antifouling cover 30, which stores the antifouling cover 301, to a shoulder belt 33 each other along the outside surface of rucksack main body 2, and a reinforcing plate 5, which reinforces at least the bottom face and both side faces of rucksack main body 2 and is capable of rising from, falling, detaching and attaching to the bottom face, are set.
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