| 摘要 |
PROBLEM TO BE SOLVED: To provide a soundproof flooring material capable of reducing solid propagation sounds.SOLUTION: The flooring material includes: a woody panel 10; and a cushioning material 30 disposed at the rear face side of the panel 10. The panel 10 is formed with plural grooves 11, 11, ... on the rear face thereof. The cushioning material 30 uses a foam resin sheet. In a compressed stress line chart of the cushioning material, a graph line changes to sharply increase at a starting end part, get gentle in an intermediate part, and sharply increase at an end part.SELECTED DRAWING: Figure 1 |
