Patent ID: 8631901
Filing Date: 2014-01-21
Classification: E04B,G10K

Abstract:
1. An acoustic structure comprising: plate members defining a plurality of hollow regions, and having a plurality of opening portions formed therein in such a manner as to communicate individual ones of the hollow regions with an external space; and a sound absorbing member fully loaded in at least one of said plurality of hollow regions, most of one surface of the sound absorbing member being exposed to the external space through the opening portion corresponding to the at least one hollow region, wherein no sound absorbing member is loaded in at least another one of said plurality of hollow regions, wherein the opening portion corresponding to the at least one hollow region, where the sound absorbing member is loaded, has an area greater than an area of any other of the opening portions that corresponds to the hollow region where the sound absorbing member is not loaded, and wherein the area of the opening portion corresponding to the at least one hollow region, where the sound absorbing member is loaded, is substantially equivalent to an area of the exposed one surface of the sound absorbing member.