EP 3974585 B1 20240117 - CONSTRUCTION MACHINE
Title (en)
CONSTRUCTION MACHINE
Title (de)
BAUMASCHINE
Title (fr)
ENGIN DE CHANTIER
Publication
Application
Priority
JP 2020012951 W 20200324
Abstract (en)
[origin: EP3974585A1] A hydraulic excavator (1) includes: a blade (20) rotatably mounted on a lower traveling body (2) and extending in the left-and-right direction; a mast (24) mounted on either a left end portion (20C) or a right end portion (20E) of the blade (20) and extending in the vertical direction; and a prism (25) provided on an upper end side of the mast (24) to detect the position of the blade (20). The hydraulic excavator (1) is also provided with a left proximity sensor (27) and a right proximity sensor (28) detecting whether the mast (24) is mounted either on the left end portion (20C) or the right end portion (20E) of the blade (20), and a rotation limiting device (29) limiting the revolving range for allowing an upper revolving structure (4) to revolve, depending on the mounting position of the mast (24) detected by the left proximity sensor (27) and the right proximity sensor (28).
IPC 8 full level
E02F 9/12 (2006.01); E02F 3/32 (2006.01); E02F 9/24 (2006.01); E02F 3/815 (2006.01)
CPC (source: EP)
E02F 3/325 (2013.01); E02F 3/435 (2013.01); E02F 3/847 (2013.01); E02F 3/964 (2013.01); E02F 9/123 (2013.01); E02F 9/2033 (2013.01); E02F 3/815 (2013.01); E02F 9/265 (2013.01)
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
DOCDB simple family (publication)
EP 3974585 A1 20220330; EP 3974585 A4 20230125; EP 3974585 B1 20240117; JP 7201877 B2 20230110; JP WO2021192020 A1 20210930; WO 2021192020 A1 20210930
DOCDB simple family (application)
EP 20927702 A 20200324; JP 2020012951 W 20200324; JP 2022509820 A 20200324