| 摘要 |
PROBLEM TO BE SOLVED: To provide unit block for a sectional structure which are easily carried and handled and easily assembled and disassembled and almost prevent an assembled structure from disassembling accidentally. SOLUTION: These unit blocks are appropriately combined together to constitute a sectional structure. A block body 1 is provided with protruded parts 2 capable of fitting in recessed parts 3 provided for another unit block, and the protruded parts 2 are each provided with through holes 4 so as to be connected to other through holes 4 provided for the recessed parts 3 at the time when fitted in the recessed parts 3 to form column insertion holes 5. The block body 1 is constituted of paper and at least part of the inside of the block body 1 is hollowly constituted.
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