| 摘要 |
There is provided a sound absorbing member lamination structure in which the functions by the sound field adjustment can effectively be achieved by preventing the sound reflection against an intension of design in a boundary between the sound absorbing member and the other layer as stacked, when the sound absorbing member and the other layer are laminated into a united body, and providing an appropriate absorption of sound by the sound absorbing member. When the sound absorbing member and the other layer are placed in a stacked state, they are bonded with the use of a pressure-sensitive adhesive, which expresses an adherence property later, so that the sound absorbing member and the other layer are combined together, with the pressure-sensitive adhesive existing between the sound absorbing member and the other layer kept uncured in a stacked state of the sound absorbing member and the other layer. Thus, such an uncured pressure-sensitive adhesive does not become a reflection portion of a sound. In addition, the respective layers of the laminated structure as combined into a united body by the pressure-sensitive adhesive are not excessively restrained, thus permitting displacement or deformation between the respective layers due to a sound vibration. It is therefore possible to cause the sound to pass through appropriately the boundary between the respective layers. Thus, appropriate properties can be obtained for the whole of the laminate by an appropriate combination of the absorption and reflection of the sound. |
