SOUND-ABSORBING MEMBER, SOUND-ABSORBING PANEL, AND SOUND-ABSORBING WALL

A sound-absorbing unit 10 has a plurality of hollow portions having shapes and/or sizes different from each other. In a perforated plate 20 constituting walls of hollow portions included in the plurality of hollow portions, perforations that cause the inside and the outside of the hollow portions to...

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Bibliographische Detailangaben
Hauptverfasser:	TAIRA Yudai, GOMI Masaki
Format:	Patent
Sprache:	eng ; fre ; jpn
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTIONOF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, ORTHE LIKE BUILDING CEILINGS CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS FLOORS GENERAL BUILDING CONSTRUCTIONS INSULATION OR OTHER PROTECTION OF BUILDINGS MACHINES FOR MAKING RAILWAYS OF ALL KINDS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERMANENT WAY PERMANENT-WAY TOOLS PHYSICS ROOFS SOUND-PRODUCING DEVICES WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:	A sound-absorbing unit 10 has a plurality of hollow portions having shapes and/or sizes different from each other. In a perforated plate 20 constituting walls of hollow portions included in the plurality of hollow portions, perforations that cause the inside and the outside of the hollow portions to communicate with each other are formed. The surface of the perforated plate 20 includes a perforated region in which a plurality of perforations are formed, and an unperforated region in which no perforation is formed. L'invention concerne une unité d'absorption acoustique 10 présentant une pluralité de parties creuses ayant des formes et/ou des tailles différentes les unes des autres. Dans une plaque perforée 20 constituant des parois de parties creuses incluses dans la pluralité de parties creuses, des perforations qui font communiquer l'intérieur et l'extérieur des parties creuses entre elles sont formées. La surface de la plaque perforée 20 comprend une région perforée dans laquelle une pluralité de perforations sont formées, et une région non perforée dans laquelle aucune perforation n'est formée. 吸音ユニット１０は、形状と大きさとの少なくとも何れかが互いに異なる複数の空洞部を有する。複数の空洞部に含まれる空洞部の壁を構成する穿孔板２０には、空洞部の内部と外部とを連通させる穿孔が形成される。穿孔板２０の表面には、複数の穿孔が形成された穿孔領域と、穿孔が形成されていない非穿孔領域とが含まれる。