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Title:
COMPACT CONSTRUCTION MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/055790
Kind Code:
A1
Abstract:
In order to stop screen operations on a monitor while a gate lock lever is lowered and suppress operational errors, a compact construction machine according to the present invention is provided with: a monitor 14 disposed to the right and front of a driver's seat 8; and a gate lock lever 13 that when raised, turns off a gate lock switch 22, so that the supply of pressure oil from a hydraulic pump to driving circuits of a traveling body 1, a swing body 2, and a work device 3 is stopped, and when lowered, turns on a gate lock switch 20, so that the supply of the pressure oil from the hydraulic pump to the driving circuits is allowed. The compact construction machine is further provided with a control device 14a that, when the engine is in a driving state and while the gate lock lever 13 is lowered, invalidates the operation of a monitor switch 22 provided on the monitor 14 and stops the specific display of a portion of a normal screen of the monitor 14.

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Inventors:
NOMURA TAKUYA (JP)
KAWAMOTO JUNYA (JP)
YUNOUE MASAYUKI (JP)
MAEDA KOUHEI (JP)
SUMIDA YOSHIKATSU (JP)
Application Number:
PCT/JP2017/006682
Publication Date:
March 29, 2018
Filing Date:
February 22, 2017
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACHINERY TIERRA CO LTD (JP)
International Classes:
E02F9/26; E02F9/16
Foreign References:
JP2015202841A2015-11-16
JP2005307483A2005-11-04
JP2005068830A2005-03-17
Attorney, Agent or Firm:
THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE (JP)
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