A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
To improve sound absorption performance of a sound absorption member using a breathable cavity via holes of a perforation plate.SOLUTION: A sound absorption member includes a perforation plate 301 having a plurality of through holes and a reinforcing plate 302 which has a face that is almost parallel to a face of the perforation plate 301 and whose position with respect to the perforation plate 301 is fixed. The sound absorption member has a cavity part which is positioned on a side opposite to the reinforcing plate 302 with respect to the face of the perforation plate 301 and is breathable between an inner part and an outer part of the cavity part via the plurality of through holes present in the perforation plate 301.SELECTED DRAWING: Figure 3
【課題】 穿孔板の孔を介して通気可能な空洞を用いた吸音部材の吸音性能を向上させる【解決手段】 吸音部材は、複数の貫通孔を有する穿孔板３０１と、穿孔板３０１の面に略平行な面を有し、穿孔板３０１に対する位置が固定された補強板３０２とを有する。さらに吸音部材は、穿孔板３０１の面に対して補強板３０２とは逆側に位置する空洞部であって、穿孔板３０１に存在する複数の貫通孔を介して空洞部の内部と外部との間で通気可能な空洞部を有する。【選択図】 図３
To improve sound absorption performance of a sound absorption member using a breathable cavity via holes of a perforation plate.SOLUTION: A sound absorption member includes a perforation plate 301 having a plurality of through holes and a reinforcing plate 302 which has a face that is almost parallel to a face of the perforation plate 301 and whose position with respect to the perforation plate 301 is fixed. The sound absorption member has a cavity part which is positioned on a side opposite to the reinforcing plate 302 with respect to the face of the perforation plate 301 and is breathable between an inner part and an outer part of the cavity part via the plurality of through holes present in the perforation plate 301.SELECTED DRAWING: Figure 3
【課題】 穿孔板の孔を介して通気可能な空洞を用いた吸音部材の吸音性能を向上させる【解決手段】 吸音部材は、複数の貫通孔を有する穿孔板３０１と、穿孔板３０１の面に略平行な面を有し、穿孔板３０１に対する位置が固定された補強板３０２とを有する。さらに吸音部材は、穿孔板３０１の面に対して補強板３０２とは逆側に位置する空洞部であって、穿孔板３０１に存在する複数の貫通孔を介して空洞部の内部と外部との間で通気可能な空洞部を有する。【選択図】 図３
SOUND ABSORPTION MEMBER
吸音部材
TANAKA YUTAKA (author)
2022-12-06
Patent
Electronic Resource
Japanese
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
SOUND ABSORPTION MEMBER, BUILDING PANEL, AND SOUND ABSORPTION HOUSING
| European Patent Office | 2020