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1. 发明专利

JP2008048598A Noise reducing cover 有权
标题翻译：噪音降低罩
公开(公告)号：JP2008048598A
公开(公告)日：2008-02-28
申请号：JP2007224466
申请日：2007-08-30
申请人： Central Japan Railway Co , Hitachi Ltd , 東海旅客鉄道株式会社 , 株式会社日立製作所
发明人： KOMATSU NORIYUKI , KITAYAMA SHIGERU , TORII AKIHIKO , SHIMIZU KAZUTERU , YOSHIZAWA KAZUHIRO , MINAMI TOMOYUKI , ABE YUKINOBU , IIDA AKIYOSHI , NAGAREKAWA HIROMITSU , MASAI KENTARO , FURUKAWA HISAFUMI
IPC分类号： B60L5/26 , B61D49/00
摘要： PROBLEM TO BE SOLVED: To provide a noise reducing cover for reducing noise generated from a current collector installed on a roof of a railway vehicle.
SOLUTION: A planar member 5 is arranged with a top surface forming a plane parallel to a roof surface in the longitudinal section of a vehicle body in the front and back of a current collector, and formed so that the thickness of the end of an opposite side to the current collector is gradually reduced, the planar member 5 is overhung toward the widthwise direction of the vehicle body and continues in the longitudinal direction of the vehicle body. Side members 6 are provided to form a convex curved surface at a lower position so that its lower surface approaches the top surface of the planar member at the end of the longitudinal direction of the vehicle body, and comes close to the roof surface of the vehicle body in the center of the longitudinal direction thereof. A leg member 7 is provided that is situated under the planar member 5 and the side members 6 to allow them to be supported by a vehicle body roof 1, and includes an elliptical-shaped wall surface in which a shape when projected on a horizontal surface encapsulates an insulator 8 of the current collector 2 internally. The lower surface of the planar member 5 corresponding to the outer side of the leg member 7 is formed as a curved surface connected smoothly to the lower surface of the leg member 7 and the side members 6.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种降噪罩，用于降低安装在铁路车辆屋顶上的集电器产生的噪音。解决方案：平面构件5布置成具有顶部表面，其在集电器的前部和后部中在车体的纵向截面中形成平行于屋顶表面的平面，并且形成为使得端部的厚度与集电体相反一侧逐渐减小，平面构件5朝向车身的宽度方向悬垂，并且在车体的长度方向上延续。侧构件6设置成在下部位置形成凸曲面，使得其下表面在车体的纵向方向的末端接近平面构件的顶表面，并且靠近车辆的车顶表面主体在其纵向方向的中心。设置有腿部构件7，该腿构件7位于平面构件5和侧构件6的下方，以允许它们被车体屋顶1支撑，并且包括椭圆形的壁表面，其中在水平表面上投影的形状在内部封装集电器2的绝缘体8。平面构件5的与腿部构件7的外侧对应的下表面形成为与腿构件7和侧构件6的下表面平滑连接的曲面。（C）2008 ，JPO＆INPIT

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