LOEFTEANORDNING FOR GRUPPEVIS HAANDTERING AV ENHETSLASTER, SAA SOM PAPIRRULLER

PCT No. PCT/N085/00070 Sec. 371 Date Sep. 8, 1986 Sec. 102(e) Date Sep. 8, 1986 PCT Filed Oct. 31, 1985 PCT Pub. No. WO86/02915 PCT Pub. Date May 22, 1986.A positioning device for a hoisting bank with a plurality of horizontally adjustable gripper means, such as vacuum cups, for groupwise handling of cargo units, such as paper rolls. The hoisting bank is of a kind including one or more guiding arms adapted for contacting the cargo units in the group to be lifted enabling the crane operator to adjust, if necessary, the center distance between the gripper means relative to the center distance between the cargo units prior to that the gripper means are positioned on the cargo units. In accordance with the invention at least one of the guiding arms (24) is provided with sensors (40, 30, 32) adapted for upon contacting an adjacent cargo unit (20) or units (20,20) and in dependence upon the outer contour of the cargo unit in question, to effect automatic extension, respectively retraction of the center distance of the gripper means (12) in dependence upon the center distance between the cargo units (20) in the group.