EP 3825473 A1 20210526 - BLADE CONTROL DEVICE FOR WORK MACHINERY
Title (en)
BLADE CONTROL DEVICE FOR WORK MACHINERY
Title (de)
MESSERSTEUERVORRICHTUNG FÜR ARBEITSMASCHINEN
Title (fr)
DISPOSITIF DE COMMANDE DE LAME POUR ENGINS DE TRAVAUX
Publication
Application
Priority
- JP 2018162282 A 20180831
- JP 2019031264 W 20190807
Abstract (en)
A blade operation control part (15) of a blade control device (100) controls operation of a blade (4) such that when a blade load (f) is equal to or less than a first load threshold value (fl) and a position deviation (ΔZ) is equal to or greater than a position threshold value (Z1), the blade (4) is lowered to make the position deviation (ΔZ) approach zero, and the blade operation control part (15) controls operation of the blade (4) such that the blade (4) is raised regardless of the position deviation (ΔZ) when the blade load (f) is equal to or greater than a second load threshold value (f2).
IPC 8 full level
E02F 3/85 (2006.01)
CPC (source: EP US)
E02F 3/7618 (2013.01 - EP); E02F 3/844 (2013.01 - EP US); E02F 3/964 (2013.01 - EP); E02F 9/262 (2013.01 - US); E02F 9/265 (2013.01 - EP); E02F 3/7609 (2013.01 - US); E02F 3/964 (2013.01 - US)
Citation (search report)
See references of WO 2020045017A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3825473 A1 20210526; CN 112567099 A 20210326; JP 2020033788 A 20200305; US 2021324605 A1 20211021; WO 2020045017 A1 20200305
DOCDB simple family (application)
EP 19854523 A 20190807; CN 201980055077 A 20190807; JP 2018162282 A 20180831; JP 2019031264 W 20190807; US 201917271100 A 20190807