EP 1639205 A1 20060329 - DEVICE FOR A MECHANICAL DIGGER
Title (en)
DEVICE FOR A MECHANICAL DIGGER
Title (de)
VORRICHTUNG FÜR EINEN MECHANISCHEN BAGGER
Title (fr)
DISPOSITIF POUR EXCAVATRICE
Publication
Application
Priority
- NO 2004000184 W 20040623
- NO 20032876 A 20030623
Abstract (en)
[origin: WO2004113622A1] A device for a mechanical digger (10) is described, where the mechanical digger comprises a lower drive machinery (12) and an upper rotational part (14), where a lifting beam is connected to the upper part (14) comprising a vertically rotational lifting arm (18) which is articulately connected to an intermediate arm (20) to which a digging/lifting tool is articulately fitted, and a number of cylinders (24,26,28) arranged to drive the lifting beam. One or more of said cylinders for raising and lowering of the lifting beam comprises a multicylinder (24) for hydraulics and gas, where the gas part of the multi-cylinder (24) is arranged to provide a counter-force which approximately corresponds to the downward directed force vector of the lifting beam.
IPC 1-7
IPC 8 full level
E02F 3/30 (2006.01); E02F 3/42 (2006.01); E02F 9/22 (2006.01); F15B 11/036 (2006.01)
CPC (source: EP)
E02F 3/30 (2013.01); E02F 3/425 (2013.01); E02F 9/2217 (2013.01); F15B 11/036 (2013.01); F15B 2211/212 (2013.01); F15B 2211/216 (2013.01); F15B 2211/625 (2013.01); F15B 2211/7055 (2013.01); F15B 2211/88 (2013.01)
Citation (search report)
See references of WO 2004113622A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004113622 A1 20041229; WO 2004113622 B1 20050317; EP 1639205 A1 20060329; NO 20032876 D0 20030623; NO 20032876 L 20041224; NO 320025 B1 20051010
DOCDB simple family (application)
NO 2004000184 W 20040623; EP 04748760 A 20040623; NO 20032876 A 20030623