| 摘要 |
PROBLEM TO BE SOLVED: To provide laminated wood for floor members superior in caster resistance, shock resistance and water resistance. SOLUTION: These floor members are laminated wood bodies for the floor which comprise synthetic resin layers and decorative layers sequentially laminated on wooden base members; the synthetic resin layer has a yield point load larger than 9 kgf, a tensile modulus of elasticity of higher than 50 kgf/mm<SP>2</SP>, and an yield coefficient of extension of 3 to 8%; in the result of the caster resistance test performed to the surface of decorative layer side of the laminated wood floor member, the depth of depression on the surface is less than 100μm. The caster resistance test is achieved for the laminated wood floor members by using a caster resistance test device equipped with a rotatable caster fixing member, three casters attached to the caster fixing member, a loading portion connected to a caster fixing base, and a sample fixing base, applied to the laminated wood for the floor member. COPYRIGHT: (C)2005,JPO&NCIPI
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