A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SOUND PROOF DEVICE
To provide a sound proof device having sound insulating characteristics and ventilation characteristics in a simple and economical manner.SOLUTION: A sound proof device 1 comprises: a first reflection surface 2 with a parabolic shape in a cross section, of which a concave side faces a noise source; a second reflection surface 3, of which a cross section opposite to the first reflection surface 2 is a convex arc shape with a diameter smaller than an aspect width w2 of the first reflection surface 2, placed ahead of the first reflection surface 2 with a center of the arc coincided with a focal point F of the parabola; and a ventilation opening 4 formed at a point of a peak P on the parabola of the first reflection surface 2 with an aspect width w4 smaller than an aspect width w3 of the second reflection surface 3.SELECTED DRAWING: Figure 1
【課題】遮音性と通気性とを兼備した簡素で経済的な防音装置を提供する。【解決手段】本願が開示する発明の防音装置１は、断面が放物線状をなして、その凹側を騒音源に向けて設置される第一反射面２と、第一反射面２に対向する部分の断面が第一反射面２の見付幅ｗ２よりも小径の凸円弧状をなし、該円弧の中心を前記放物線の焦点Ｆの位置に合致させて第一反射面２の前方に配置された第二反射面３と、第二反射面３の見付幅ｗ３よりも小さい見付幅ｗ４で第一反射面２における前記放物線の頂点Ｐの位置に形成された通気用開口４と、を具備するものである。【選択図】図１
SOUND PROOF DEVICE
To provide a sound proof device having sound insulating characteristics and ventilation characteristics in a simple and economical manner.SOLUTION: A sound proof device 1 comprises: a first reflection surface 2 with a parabolic shape in a cross section, of which a concave side faces a noise source; a second reflection surface 3, of which a cross section opposite to the first reflection surface 2 is a convex arc shape with a diameter smaller than an aspect width w2 of the first reflection surface 2, placed ahead of the first reflection surface 2 with a center of the arc coincided with a focal point F of the parabola; and a ventilation opening 4 formed at a point of a peak P on the parabola of the first reflection surface 2 with an aspect width w4 smaller than an aspect width w3 of the second reflection surface 3.SELECTED DRAWING: Figure 1
【課題】遮音性と通気性とを兼備した簡素で経済的な防音装置を提供する。【解決手段】本願が開示する発明の防音装置１は、断面が放物線状をなして、その凹側を騒音源に向けて設置される第一反射面２と、第一反射面２に対向する部分の断面が第一反射面２の見付幅ｗ２よりも小径の凸円弧状をなし、該円弧の中心を前記放物線の焦点Ｆの位置に合致させて第一反射面２の前方に配置された第二反射面３と、第二反射面３の見付幅ｗ３よりも小さい見付幅ｗ４で第一反射面２における前記放物線の頂点Ｐの位置に形成された通気用開口４と、を具備するものである。【選択図】図１
SOUND PROOF DEVICE
防音装置
YAMADA NOZOMI (author) / NAGAMATSU HIDEO (author)
2021-05-27
Patent
Electronic Resource
Japanese
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
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Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
/
G10K
Tonerzeugungsvorrichtungen
,
SOUND-PRODUCING DEVICES