| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound insulating floor structure by which sinkage of a floor material caused by walking is suppressed, good walk feeling is obtained, and excellent performance of insulating an impact sound of the floor is achieved. SOLUTION: The sound insulating floor structure is formed by laminating a shock-absorbing layer 2, a space layer 3, a wooden layer 4 and a floor finishing layer 5 in this order on a floor underlayer material 1. In the structure, supporting materials 6 are interposed between the shock absorbing layer 2 and the wooden layer 4. The shock absorbing layer can be a non-woven fiber structure having a thickness of 3-20 mm, and an apparent density of 0.03-0.2 g/cm<SP>3</SP>. (In particular, the non-woven fiber structure includes a wet-heat adhesive fiber which is fusion bonded to fix the fiber, and has a fiber bonding rate of 3-85%). The supporting materials can occupy an area of 10-70% of the floor area. COPYRIGHT: (C)2011,JPO&INPIT |
