| 摘要 |
The invention concerns a guide channel structure, for example designed for a line guiding energy transfer elements, and fixed to a substructure which, like for example a crane with slewing jib, comprises a fixed zone and a zone pivoting about a first pivot (8). Said guide channel structure comprises a fixed structural element (6) mounted on the substructure fixed zone, a mobile structural element (7) mounted on the substructure pivoting zone and an intermediate structural element (9) arranged between the two structural elements (6, 7) and connected to the mobile structural element (7) so as to pivot about a second pivot (10). Said elements are coupled by a control system such that, when the substructure rotates, the mobile structural element (7) and the intermediate structural element (9) move with one passing in front of the other.
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