TRACTION DEVICE AND METHOD FOR PAYING OUT AND RETRIEVING A FLEXIBLE LINE.

摘要

A traction device (1) for paying out and retrieving a flexible line (2) comprising a line mover (3) wherein; the line mover comprises at least one movable friction surface (4), the at least one friction surface in total defines at least two arc sections (5, 6) configured to move the line along with said arc sections, in use the line is wound around said at least one friction surface such that the line comprises a first contact area (7) (6) being in contact with the first arc section and a second contact area being in contact with the second arc section, and the traction device comprises a line controller coupled to the line between the first contact area and the second contact area and configured to control the velocity (v3) with which the line in use is fed to the second arc section, and also a method and use of the traction device. In a preferred embodiments the line controller may comprise a movable weight member (18) or a hydraulic cylinder (21).