公开(公告)号：US4158401A

公开(公告)日：1979-06-19

申请号：US703985

申请日：1976-07-09

申请人： Masayasu Matsumoto ,  Kazuyoshi Iida ,  Yoshikazu Kondo ,  Keiichiro Mizuno ,  Sadao Nomoto ,  Noriaki Murayama ,  Kei Watanabe ,  Tomonori Katayama

发明人： Masayasu Matsumoto ,  Kazuyoshi Iida ,  Yoshikazu Kondo ,  Keiichiro Mizuno ,  Sadao Nomoto ,  Noriaki Murayama ,  Kei Watanabe ,  Tomonori Katayama

IPC分类号： E01B2/00 ,  E01F8/00 ,  G10K11/175 ,  G10K11/00 ,  E04H17/00

CPC分类号： E01B2/003 ,  E01F8/0076 ,  G10K11/175 ,  E01B19/003

摘要： A device for controlling a propagation direction of noise, which is preferably associated with a sound insulating wall to significantly improve its sound reducing effect of alleviating noise emitted from a noise source such as a railroad, highway and the like on which an electric car and automobiles run. The device comprises a hollow structural body composed of a plurality of elongated vertical hollow passages arranged at right angles to a substrate and spaced apart from each other by means of partition walls. The upper noise inlet side surface of the hollow passages face a propagation direction of noise emitted from the noise source and serve to refract and lag in phase the noise passed therethrough, thereby producing a sound reducing region located intermediate between a direct sound propagation and the refracted sound propagation. In one embodiment, a pair of hollow structural bodies are arranged in opposition to each other to form an arch type device. In another embodiment, the hollow structural body may be provided at its noise inlet or outlet side surface with an extension of the hollow passages.

摘要翻译： 一种用于控制噪声传播方向的装置，其优选地与隔音壁相关联，以显着改善其减轻从诸如铁路，公路等的噪声源发出的噪声的声音降低效果，其中电动汽车和汽车 跑。 该装置包括中空结构体，该中空结构体由多个细长的垂直中空通道构成，该垂直中空通道以与基底成直角的方式布置并且通过分隔壁彼此间隔开。 中空通道的上部噪声入口侧表面面对从噪声源发出的噪声的传播方向，并且用于使通过的噪声相位折射和滞后，从而产生位于直接声音传播和折射之间的声音降低区域 声音传播。 在一个实施例中，一对中空结构体彼此相对布置以形成拱形装置。 在另一个实施例中，中空结构体可以设置在其噪声入口或出口侧表面，并具有中空通道的延伸部分。

公开(公告)号：US4156476A

公开(公告)日：1979-05-29

申请号：US881315

申请日：1978-02-27

申请人： Masayasu Matsumoto ,  Kazuyoshi Iida ,  Yoshikazu Kondo ,  Keiichiro Mizuno ,  Sadao Nomoto ,  Noriaki Murayama ,  Tomonori Katayama ,  Keiichiro Tabata ,  Kenichi Onda

发明人： Masayasu Matsumoto ,  Kazuyoshi Iida ,  Yoshikazu Kondo ,  Keiichiro Mizuno ,  Sadao Nomoto ,  Noriaki Murayama ,  Tomonori Katayama ,  Keiichiro Tabata ,  Kenichi Onda

IPC分类号： G10K11/178 ,  E01B19/00 ,  E01F8/00 ,  E01F13/00 ,  E01F13/04 ,  E04B1/86 ,  G10K11/16 ,  G10K11/175 ,  G10K11/00 ,  E04H17/00

CPC分类号： G10K11/175 ,  E01F8/0076

摘要： A noise control device which produces behind it an enlarged sound reducing region is disclosed. The device comprises a hollow structural body composed of a plurality of elongate hollow passages which are different in length and constructed such that the passage length is made the longest at a substantially center part in a vertical direction and is made gradually shorter from the center part toward upper and lower edges of the hollow structural body. The upper and lower edges allow direct propagation sound emitted from a noise source to pass thereover and therethrough.

摘要翻译： 公开了一种噪声控制装置，其在其后面产生放大的减声区域。 该装置包括：中空结构体，其由长度不同的多个细长的中空通道构成，并且构造成使得通道长度在垂直方向上的基本上中心部分最长，并且从中心部分逐渐变短 中空结构体的上下边缘。 上边缘和下边缘允许从噪声源发出的直接传播声音通过它们并穿越其中。