A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
UPPER REVOLVING BODY OF CONSTRUCTION MACHINE
To suppress a noise inside of a cab.SOLUTION: A duct structure 40 includes a cab approach guard opening 51 formed on a cab approach guard 20 and a center duct 60 which approximately communicates with the cab approach guard opening 51 and overlaps with a center section 10 when viewed from a vertical direction Z. The air sucked into an interior of the cab approach guard 20 from an inlet port provided on a rear side X2 end part of the cab approach guard 20 passes through an interior of the cab approach guard opening 51 and is discharged from the cab approach guard 20 and then passes through an interior of the center duct 60. The cab approach guard opening 51 is arranged closer to a front side X1 than noise sources (21, 22).SELECTED DRAWING: Figure 1
【課題】キャブ内の騒音を抑制する。【解決手段】ダクト構造４０は、キャブ近接ガード２０に形成されるキャブ近接ガード開口５１と、キャブ近接ガード開口５１と略連通し、上下方向Ｚから見たときにセンターセクション１０と重なるセンターダクト６０と、を備える。キャブ近接ガード２０の後側Ｘ２端部に設けられる吸気口からキャブ近接ガード２０の内部に吸気された空気は、キャブ近接ガード開口５１の内部を通ってキャブ近接ガード２０から排出され、センターダクト６０の内部を通る。キャブ近接ガード開口５１は、騒音源（２１、２２）よりも前側Ｘ１に配置される。【選択図】図１
UPPER REVOLVING BODY OF CONSTRUCTION MACHINE
To suppress a noise inside of a cab.SOLUTION: A duct structure 40 includes a cab approach guard opening 51 formed on a cab approach guard 20 and a center duct 60 which approximately communicates with the cab approach guard opening 51 and overlaps with a center section 10 when viewed from a vertical direction Z. The air sucked into an interior of the cab approach guard 20 from an inlet port provided on a rear side X2 end part of the cab approach guard 20 passes through an interior of the cab approach guard opening 51 and is discharged from the cab approach guard 20 and then passes through an interior of the center duct 60. The cab approach guard opening 51 is arranged closer to a front side X1 than noise sources (21, 22).SELECTED DRAWING: Figure 1
【課題】キャブ内の騒音を抑制する。【解決手段】ダクト構造４０は、キャブ近接ガード２０に形成されるキャブ近接ガード開口５１と、キャブ近接ガード開口５１と略連通し、上下方向Ｚから見たときにセンターセクション１０と重なるセンターダクト６０と、を備える。キャブ近接ガード２０の後側Ｘ２端部に設けられる吸気口からキャブ近接ガード２０の内部に吸気された空気は、キャブ近接ガード開口５１の内部を通ってキャブ近接ガード２０から排出され、センターダクト６０の内部を通る。キャブ近接ガード開口５１は、騒音源（２１、２２）よりも前側Ｘ１に配置される。【選択図】図１
UPPER REVOLVING BODY OF CONSTRUCTION MACHINE
建設機械の上部旋回体
MASUDA KYOKO (author) / KINOSHITA SHINICHI (author) / IRIE MASASHI (author) / WATANABE ERI (author) / KIMURA YASUMASA (author)
2020-09-17
Patent
Electronic Resource
Japanese
| European Patent Office | 2021
SUPPORT MEMBER, UPPER REVOLVING STRUCTURE, AND CONSTRUCTION MACHINE
| European Patent Office | 2022