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Title:
CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/049409
Kind Code:
A1
Abstract:
A construction machine comprising: hydraulic pumps (61, 62) that pressure feed pressurized oil to a plurality of actuators (60) including a prescribed actuator; an engine (30) that drives the hydraulic pumps (61, 62); an obstacle detection device (8) that detects obstacles in a monitored area including a first area set around the machine body and a second area set on the outside of the first area; a proportional solenoid valve (67) as a prohibition device that prohibits driving the prescribed actuator when an obstacle is detected in the first area by the obstacle detection device (8); and an integrated ECU (7) as a control device that performs speed reduction control for decreasing the speed of the prescribed actuator when an obstacle is detected in the second area by the obstacle detection device (8).

Inventors:
YAMAMOTO MIROKU (JP)
TERASHIMA JUN (JP)
YAMASAKI TATSUO (JP)
Application Number:
PCT/JP2020/033427
Publication Date:
March 18, 2021
Filing Date:
September 03, 2020
Export Citation:
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Assignee:
YANMAR POWER TECHNOLOGY CO LTD (JP)
International Classes:
E02F9/20; E02F9/24
Foreign References:
JP2018199989A2018-12-20
JPH09217387A1997-08-19
JP2017097640A2017-06-01
JPH08311934A1996-11-26
JPH08269998A1996-10-15
Attorney, Agent or Firm:
SANO PATENT OFFICE (JP)
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