| 摘要 |
PROBLEM TO BE SOLVED: To provide a wooden floor material excellent in sense of raw material and of solidness and having stable quality.SOLUTION: A wooden floor material is constituted of at least a woody decorative material and a woody base material and is provided with a longitudinal groove in the side of a surface 1a of the woody decorative material. The cross-sectional shape of the longitudinal groove has a first straight line part 2a, a curve part 2b protruding obliquely outward, and a second straight line part 2c sequentially and continuously from the surface side of the woody decorative material. The inclination angle of the first straight line part 2a with respect to the surface 1a of the woody decorative material is preferably 2.5-20°, the radius of curvature of the curve part 2b is preferably 2-4 mm, and the inclination angle of the second straight line part 2c with respect to the surface 1a of the woody decorative material is preferably 45-60°. |
