| 摘要 |
A packing member for interlayer noise prevention is provided to reduce noise more effectively by absorbing, deflecting, refracting and reflecting the wavelength of noise occurring between layers, to activate the third noise reduction action in an inside space, and to improve the noise reduction effect with a groove, an external wall and an internal wall. A packing member(1) constructed on the bottom of a building to prevent interlayer noise comprises a base(10) formed in the shape of a plate, and a projection(20) formed in the shape of a column opened upward and emptied inward and provided with at least one or more grooves on the end of an external wall, wherein many projections are formed on the surface of the base. |
