| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixing system for aiming to reduce cost in a flooring board. SOLUTION: This fixing system is for mechanically joining the flooring board 1 along a vertical joint surface F, and is provided with a fixing groove 14 formed on the lower side 3 of the first joint edge in a place a little separate from the joint surface F for joining orthogonal to the joint surface F, and a certain part P for supporting a fixing element 8 for cooperating with the fixing groove 14 in a place a little separate from the joint surface F under the first joint edge, by projecting from a lower part of the second joint edge 4a. A projecting part 2 is positioned on the whole outside surface of the joint surface F. The projecting part P presents at least mutually different two horizontally juxtaposed parts P1 and P2 on at least one of a parameter, a material composition and a material characteristic. COPYRIGHT: (C)2005,JPO&NCIPI
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