| 摘要 |
<p>PURPOSE: The sectional floorings are provided to improve the binding strength of floorings, to promote the convenience on work and to minimize the transformation caused by external influence such as moisture. CONSTITUTION: The sectional floorings contain primary and secondary floorings(10A,10B) assembled mutually by forming combining structures having different shapes on a lengthwise side and a widthwise side. The primary flooring(10A) contains a primary concave part(12), an intermediate hanging projection(13) projected toward the outer top of the primary flooring(10A) from the primary concave part(12), and a combining projection(14) projected toward the outside of the primary flooring(10A) from the side of the intermediate hanging projection(13); and the secondary flooring(10B) contains a projection(16) fitted to the primary concave part(12), a secondary concave part(17) formed toward the inner top of the secondary flooring(10B) from the projection(16) to house the intermediate hanging projection(13), and a third concave part(18) formed toward the inside of the secondary flooring(10B) to house the combining projection(14).</p> |
