A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOUND DEADENING SYSTEM
PROBLEM TO BE SOLVED: To provide a sound deadening system capable of deadening a sound making an entry and capable of enhancing a sound absorbing effect while hardly using a fibrous sound absorbing material.SOLUTION: Louver units 22 and 35, in which acute angle parts 21 and 34 are provided in series at tips 10a of a pair of reflection surfaces 10 with damping properties, respectively, are juxtaposed in such a manner that the respective reflection surfaces 10 are arranged in an opposed state at a predetermined interval. An external incident sound incident in a predetermined range of an incident angle makes an entry into a repeated reflection lane 32 without leakage, and the sound incident upon the reflection surface 10 is deadened by being reflected and damped more than once between the reflection surfaces 10 arranged in the opposed state.SELECTED DRAWING: Figure 7
【課題】進入した音を消音することが可能で、繊維系吸音材を殆ど使用せずに吸音効果を高めることが可能な消音システムを得る。【解決手段】減衰性を有する一対の反射面１０の先端１０ａに鋭角部２１，３４を一連に設けて構成されるルーバーユニット２２，３５を、所定間隔を存して各々の反射面１０同士が対向配置するように併設して構成され、所定範囲の入射角度で入射する外部からの入射音をもれなく反復反射レーン３２に進入させ、反射面１０に入射した音を対向配置される反射面１０間で複数回反射減衰させて消音する。【選択図】図７
SOUND DEADENING SYSTEM
PROBLEM TO BE SOLVED: To provide a sound deadening system capable of deadening a sound making an entry and capable of enhancing a sound absorbing effect while hardly using a fibrous sound absorbing material.SOLUTION: Louver units 22 and 35, in which acute angle parts 21 and 34 are provided in series at tips 10a of a pair of reflection surfaces 10 with damping properties, respectively, are juxtaposed in such a manner that the respective reflection surfaces 10 are arranged in an opposed state at a predetermined interval. An external incident sound incident in a predetermined range of an incident angle makes an entry into a repeated reflection lane 32 without leakage, and the sound incident upon the reflection surface 10 is deadened by being reflected and damped more than once between the reflection surfaces 10 arranged in the opposed state.SELECTED DRAWING: Figure 7
【課題】進入した音を消音することが可能で、繊維系吸音材を殆ど使用せずに吸音効果を高めることが可能な消音システムを得る。【解決手段】減衰性を有する一対の反射面１０の先端１０ａに鋭角部２１，３４を一連に設けて構成されるルーバーユニット２２，３５を、所定間隔を存して各々の反射面１０同士が対向配置するように併設して構成され、所定範囲の入射角度で入射する外部からの入射音をもれなく反復反射レーン３２に進入させ、反射面１０に入射した音を対向配置される反射面１０間で複数回反射減衰させて消音する。【選択図】図７
SOUND DEADENING SYSTEM
消音システム
KIZU RYOTA (author) / MICHIWAKI YUTAKA (author)
2016-02-12
Patent
Electronic Resource
Japanese
IPC:
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.
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