Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
RESONANCE TYPE SOUND ABSORPTION PANEL
To provide a resonance type sound absorption panel which improves sound absorption performance with a simple shape change as much as possible, does not remarkably increase weight due to the shape change and can be easily applied to an existing sound absorption panel.SOLUTION: A resonance type sound absorption panel 1 comprises: a cell structure which is constituted from partitions 12 for partitioning cells 11 and a surface plate 20 where through holes 21 are formed and a back wall 30, which are arranged on upper and lower portions of the partitioned cells 11; and protrusions protruding in a center axis direction of the through holes 21 from a wall side of at least one of a surface side end and a back side end of the through holes 21 and having protrusion length which is 20% or less of diameters of the through holes 21.SELECTED DRAWING: Figure 1
【課題】できる限り簡易な形状変更をもって、吸音性能を高め、形状変更による大幅な重量増加をすることがなく、しかも既存の吸音パネルへの適用も容易にできる共鳴型吸音パネルを提供する。【解決手段】共鳴型吸音パネル１は、セル１１を区画する隔壁１２と、区画されたセル１１の上下に設けられ、貫通孔２１が設けられた表面板２０及び背後壁３０とから構成されるセル構造と、貫通孔２１の表面側端部及び裏面側端部の少なくとも一方の壁側より貫通孔２１の中心軸方向に突出し、貫通孔２１の直径の２０％以下の突出長の突出部とを有する。【選択図】図１
RESONANCE TYPE SOUND ABSORPTION PANEL
To provide a resonance type sound absorption panel which improves sound absorption performance with a simple shape change as much as possible, does not remarkably increase weight due to the shape change and can be easily applied to an existing sound absorption panel.SOLUTION: A resonance type sound absorption panel 1 comprises: a cell structure which is constituted from partitions 12 for partitioning cells 11 and a surface plate 20 where through holes 21 are formed and a back wall 30, which are arranged on upper and lower portions of the partitioned cells 11; and protrusions protruding in a center axis direction of the through holes 21 from a wall side of at least one of a surface side end and a back side end of the through holes 21 and having protrusion length which is 20% or less of diameters of the through holes 21.SELECTED DRAWING: Figure 1
【課題】できる限り簡易な形状変更をもって、吸音性能を高め、形状変更による大幅な重量増加をすることがなく、しかも既存の吸音パネルへの適用も容易にできる共鳴型吸音パネルを提供する。【解決手段】共鳴型吸音パネル１は、セル１１を区画する隔壁１２と、区画されたセル１１の上下に設けられ、貫通孔２１が設けられた表面板２０及び背後壁３０とから構成されるセル構造と、貫通孔２１の表面側端部及び裏面側端部の少なくとも一方の壁側より貫通孔２１の中心軸方向に突出し、貫通孔２１の直径の２０％以下の突出長の突出部とを有する。【選択図】図１
RESONANCE TYPE SOUND ABSORPTION PANEL
共鳴型吸音パネル
ENOMOTO SHUNJI (Autor:in) / ISHII TATSUYA (Autor:in)
22.08.2019
Patent
Elektronische Ressource
Japanisch
IPC:
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
/
F01N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
,
Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein
| Europäisches Patentamt | 2015