Invention Grant
- Patent Title: Construction machine
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Application No.: US16980754Application Date: 2019-02-06
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Publication No.: US11377815B2Publication Date: 2022-07-05
- Inventor: Koji Yamashita
- Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Applicant Address: JP Hiroshima
- Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Current Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
- Current Assignee Address: JP Hiroshima
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2018-061968 20180328
- International Application: PCT/JP2019/004150 WO 20190206
- International Announcement: WO2019/187659 WO 20191003
- Main IPC: E02F3/43
- IPC: E02F3/43 ; E02F3/32 ; E02F3/40 ; E02F9/22

Abstract:
A construction machine capable of reducing a resistance that a bucket receives from the ground and improving smoothness of a construction surface includes a working device including a working device body and a bucket, first and second bucket actuators that rotationally move the bucket, and a control device. The control device controls the second bucket actuator to make the second bucket actuator periodically oscillate the bucket in a direction of a yaw motion during excavation work or ground leveling work.
Public/Granted literature
- US20210002853A1 CONSTRUCTION MACHINE Public/Granted day:2021-01-07
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