Patent ID: 6862509

Claim:
A device for operating an articulated boom ( 22 ) connected to a boom base ( 21 ), said articulated boom ( 22 ) including at least three boom arms ( 23 to 27 ) which may each respectively be limitedly pivoted relative to the boom base ( 21 ) or relative to an adjacent boom arm ( 23 to 27 ) about parallel horizontal articulation axis ( 28 to 32 ) via respectively one drive unit ( 34 to 38 ), said boom base ( 21 ) mounted to a frame ( 11 ) and pivotable about a vertical axis ( 13 ) via a drive unit ( 19 ), said device for operating the articulated boom comprising a control device ( 74 ) for movement of the boom as well as a remote controller communicating with the control device via preferably a wireless data transmission pathway ( 68 ), said remote controller comprising a first and a second remote control device ( 60 , 62 ), each of which being adjustable manually back and forth in at least one main operating direction and thus providing an output signal ( 64 , 66 ), said control device ( 74 ) comprising a computer supported co-ordinate transformer ( 80 ), responsive to the output signal ( 64 ) from the first remote control device ( 60 ), via which the drive units ( 34 to 38 ) for the redundant articulation axes may be operated in the one main control direction (r) of the first remote control device ( 60 ) independent of the drive unit ( 19 ) for the rotation of the boom base ( 21 ) and in any rotation position of the boom base, for extending or retracting the articulated boom ( 14 ) according to the pattern of a pre-determined path-slew relationship, wherein said control device ( 74 ) provides a correction routine ( 84 ) based on the output signal ( 66 ) from the second remote control device ( 62 ), via which, in one of the main operating directions (ε v ) of the second remote control device ( 62 ), the drive unit of a selected articulation axis (j) is preferentially operated with maintaining the position set by the first remote control device ( 60 ) and/or movement of the boom distal end ( 33 ) by tracking or following the drive unit in at least one of the remaining articulation axis.