| 摘要 |
<p>Blocks capable of easily building a log house, etc., when laminated to form a wall surface, preventing rain water penetrating through connecting portions of the blocks from advancing to the inner wall surface side and improving the strength of the house by increasing a weight bearing area of the blocks, comprising a hook-shaped engagement portion (2), a fitting protruding portion (3), an engagement groove portion (4) and an insertion hole (5). A first slope surface (31) inclining from one of the sides towards the other and a second slope surface (32) inclining from the other to one of the sides are formed on the upper surface of the fitting protruding portion (3). Flat surfaces (33) and (34) higher than the slope surfaces are formed at both ends of these slope surfaces, respectively. A center flat surface (35) higher than the slope surfaces is formed between the first and second slope surfaces (31) and (32).</p> |
