Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/060302
Kind Code:
A1
Abstract:
Provided is a hydraulic shovel including a controller that can control a work device using an excavation work control for causing a tiptoe of a bucket to move along a predetermined target surface and a leveling work control for causing the bucket to move along the target surface while maintaining the posture of the bucket with respect to the target surface, wherein: the controller calculates, on the basis of posture data and dimension data on a work machine and position data on the target surface, an arm tip deviation Dva that is the distance from the tip of an arm to the target surface; and the controller executes the leveling work control when the calculated arm tip deviation is less than or equal to a predetermined threshold dv1, when there is no input of a bucket operation for an operation lever, and when there is an input of an arm operation for the operation level, and otherwise executes the excavation work control.
Inventors:
NAKANO HISAMI (JP)
TANAKA HIROAKI (JP)
SUZUKI YUSUKE (JP)
TANAKA HIROAKI (JP)
SUZUKI YUSUKE (JP)
Application Number:
PCT/JP2020/035871
Publication Date:
April 01, 2021
Filing Date:
September 23, 2020
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
E02F3/43; E02F9/22
Domestic Patent References:
| WO2017086488A1 | 2017-05-26 | |||
| WO2017086488A1 | 2017-05-26 |
Foreign References:
| JPS5948534A | 1984-03-19 | |||
| JP2018080510A | 2018-05-24 | |||
| CN104120745A | 2014-10-29 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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