Title:
CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2019/187659
Kind Code:
A1
Abstract:
Provided is a construction machine that can reduce the resistance a bucket receives from the ground during work and can improve formation level smoothness. The construction machine comprises a work device (4) having a work device body and a bucket (30), a first and second bucket actuators (32, 35) serving to turn the bucket (30), and a control device. The second bucket actuator (35) causes the bucket (30) to perform a yaw movement with respect to the work device body around the central axis (C1) orthogonal to the bucket horizontal axis. The control device controls the second actuator (35) so as to cause the bucket (30) to vibrate in the yaw movement direction during excavation work or during ground leveling work.
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Inventors:
YAMASHITA KOJI
Application Number:
PCT/JP2019/004150
Publication Date:
October 03, 2019
Filing Date:
February 06, 2019
Export Citation:
Assignee:
KOBELCO CONSTR MACH CO LTD (JP)
International Classes:
E02F3/40; E02F3/43
Domestic Patent References:
| WO2016125232A1 | 2016-08-11 | |||
| WO2014209209A1 | 2014-12-31 |
Foreign References:
| US9816249B2 | 2017-11-14 | |||
| JPH064157U | 1994-01-18 | |||
| JP3019505U | 1995-12-19 | |||
| JPH0860692A | 1996-03-05 | |||
| JPH08165678A | 1996-06-25 | |||
| JPH0224424A | 1990-01-26 |
Other References:
See also references of EP 3748086A4
Attorney, Agent or Firm:
KOTANI, Etsuji et al. (JP)
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