SOUND INSULATION STRUCTURE

• Main Authors: INOUE SATOSHI, NISHIMURA MASAHARU, KAISE TOMOAKI
• Format: Patent
• Language: English; Japanese
• Published: 14.12.2017
• Subjects: ACOUSTICS; ACOUSTICS NOT OTHERWISE PROVIDED FOR; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; MUSICAL INSTRUMENTS; PHYSICS; SOUND-PRODUCING DEVICES

PROBLEM TO BE SOLVED: To provide a sound insulation structure capable of exhibiting a high sound insulation effect on a plurality of frequencies.SOLUTION: A sound insulation structure 1 is formed in a panel shape, and includes: a bag body part 2 that is formed by a thin film material and has a gas sealed inside; a coarse lattice body 3 attached firmly to a first surface serving as a side surface of the bag body part; a fine lattice body 4 attached firmly to a second surface, of the bag body part, serving as a side surface opposite to the first surface; and a frame body part 5 for holding a state in which the coarse lattice body, the bag body part, and the fine lattice body are laminated. The coarse lattice body and the fine lattice body are sheet-like materials having a plurality of openings, and have different aperture ratios and different areal densities.SELECTED DRAWING: Figure 1 【課題】複数の周波数に対して高い遮音効果を発揮させることが可能な遮音構造体を提供する。【解決手段】パネル状に形成される遮音構造体１である。そして、薄膜材によって形成されて内部に気体が封入された袋体部２と、袋体部の側面となる第１面に密着させた粗目格子体３と、その反対側の側面となる袋体部の第２面に密着させた細目格子体４と、粗目格子体と袋体部と細目格子体とを積層させた状態で保持させる枠体部５とを備えている。ここで、粗目格子体及び細目格子体は複数の開口を有する面状材であるとともに、粗目格子体と細目格子体とは開口率及び面密度が異なっている。【選択図】図１