A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
DUCT
To provide a duct capable of realizing smooth circulation for fluid and selective transmission for radio waves.SOLUTION: A duct comprises: a cylinder part that extends from the inside of a building or mobile body, and communicates the outside with the inside; a radio wave obstruction inclined surface that is formed on the inner surface of the cylinder part, extends so as to be inclined toward the axial line of the cylinder part as it goes from the outside to the inside in the axial direction of the cylinder part, and reflects radio waves; and a radio wave selection inner peripheral member that has a cylindrical shape of covering the radio wave obstruction inclined surface from the inner peripheral side, and can selectively transmit only radio waves of a specific frequency made incident on the cylinder part.SELECTED DRAWING: Figure 2
【課題】流体の円滑な流通と電波の選択的な透過とを実現することができるダクトを提供する。【解決手段】ダクトは、建築物又は移動体の室内から延びて形成され、外部と前記室内とを連通させる筒部と、筒部の内面に形成され、筒部の軸方向において外部から室内に向かうにしたがって、筒部の軸線に近づくように傾斜して延び、電波を反射する電波阻害傾斜面と、電波阻害傾斜面を内周側から覆う筒状をなし、筒部に入射した特定の周波数の電波のみを選択的に透過させることが可能な電波選択内周部材と、を備える。【選択図】図２
DUCT
To provide a duct capable of realizing smooth circulation for fluid and selective transmission for radio waves.SOLUTION: A duct comprises: a cylinder part that extends from the inside of a building or mobile body, and communicates the outside with the inside; a radio wave obstruction inclined surface that is formed on the inner surface of the cylinder part, extends so as to be inclined toward the axial line of the cylinder part as it goes from the outside to the inside in the axial direction of the cylinder part, and reflects radio waves; and a radio wave selection inner peripheral member that has a cylindrical shape of covering the radio wave obstruction inclined surface from the inner peripheral side, and can selectively transmit only radio waves of a specific frequency made incident on the cylinder part.SELECTED DRAWING: Figure 2
【課題】流体の円滑な流通と電波の選択的な透過とを実現することができるダクトを提供する。【解決手段】ダクトは、建築物又は移動体の室内から延びて形成され、外部と前記室内とを連通させる筒部と、筒部の内面に形成され、筒部の軸方向において外部から室内に向かうにしたがって、筒部の軸線に近づくように傾斜して延び、電波を反射する電波阻害傾斜面と、電波阻害傾斜面を内周側から覆う筒状をなし、筒部に入射した特定の周波数の電波のみを選択的に透過させることが可能な電波選択内周部材と、を備える。【選択図】図２
DUCT
ダクト
YANO YUKI (author) / KAMIHARA NOBUYUKI (author)
2021-05-27
Patent
Electronic Resource
Japanese
OUTDOOR DUCT, CONSTRUCTION METHOD OF OUTDOOR DUCT, AND UNIT FOR DUCT
| European Patent Office | 2017