To provide a sound insulation sheet member that is relatively light-weight but has high sound insulation performance exceeding the mass-law, has high design flexibility and excellent versatility, is easy to produce, and can improve productivity and economical efficiency, as well as a sound insulation structure through use of the same.SOLUTION: A sound insulation structure 200 at least includes a sheet 11 having rubber elasticity and a plurality of resonance portions 21. The resonance portions 21 are provided to be in contact with the sheet surface of the sheet 11. The resonance portion 21 includes a base portion 22 and a weight portion 23. The weight portion 23 is supported by the base portion 22 and has a mass greater than that of the base portion 22, and is composed of a single member. At the leading end side of the resonance portion 21, at least part of the weight portion 23 is buried in the base portion 22.SELECTED DRAWING: Figure 1
【課題】比較的に軽量でありながらも質量則を凌駕する高い遮音性能を有し、設計自由度が高く汎用性に優れ、製造容易で生産性及び経済性を改善可能な、遮音シート部材及びこれを用いた遮音構造体を提供する。【解決手段】遮音構造体200は、ゴム弾性を有するシート11、及び複数の共振部21を少なくとも備える。共振部21は、シート11のシート面に接して設けられ、共振部21は、基部22及び錘部23を備える。錘部23は、基部22に支持され且つ基部22より大きな質量を有し、且つ、単一の部材で構成され、共振部21の先端側において、錘部23の少なくとも一部が、基部22に埋設されている。【選択図】図1
SOUND INSULATION SHEET MEMBER AND SOUND INSULATION STRUCTURE THROUGH USE OF THE SAME
遮音シート部材、及びこれを用いた遮音構造体
2020-03-19
Patent
Electronic Resource
Japanese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E04B Allgemeine Baukonstruktionen , GENERAL BUILDING CONSTRUCTIONS |
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