| 摘要 |
PURPOSE:To simplify the assembling work of blocks by combining base blocks with connecting blocks. CONSTITUTION:Four corners of a square part are cut off in a circular arc form and fitting edges 2 and fitting grooves 5 are provided for the square part to form a base block 1. The base block 1 is combined with connecting blocks 9 having a disk-like fitting part 10 and a disk-like press collar 11. The assembling work can thus be simply performed only by setting both the blocks 1 and 9 in parallel in a short time without the needs for a hardener, e.g., cement, etc.
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