Patent ID: 9746104
Date: 2017-08-29
CPC Classifications: B66D,F16L

Claim:
1. A device for laying an elongate element in a stretch of water, comprising: a drum configured to be driven in rotation about a central axis (B-B′), the drum defining a circumferential casing for winding the elongate element on the casing around the central axis (B-B ′), the elongate element and the casing being configured to form at least one turn about the central axis (B-B′) on the circumferential casing, the drum further comprising a drive mechanism configured for driving the or each turn(s) of the elongate element on the circumferential casing; and the drive mechanism comprises a plurality of movement assemblies configured to move the turn along a direction of movement (D), said direction of movement and the local axis of the turn forming a non-zero angle at a contact region of the turn on the movement assemblies, the drum further comprising two laterally spaced apart flanges and a linkage assembly connecting the two laterally spaced apart flanges, and delimiting, for each movement assembly, an external channel configured to receive the movement assembly opening radially away from the central axis (B-B′), the linkage assembly including a plurality of axial beams connecting the flanges to each other, the external channel being defined by two adjacent axial beams, each movement assembly further comprising an endless organ configured to be moved along the direction (D), and a second assembly to set in motion the endless organ, the endless organ and the second assembly being carried by the drum in order for the second assembly to be moved in joint rotation with the drum about the central axis (B-B′) and, each movement assembly further comprising an outer section of the endless organ received in the external channel, the linkage assembly delimiting an inner channel to receive an inner section of the endless organ, and the inner channel opening radially towards the central axis (B-B′), opposite the external channel, at least a first group of the inner channels being offset radially away from the central axis (B-B′) relative to a second group of the inner channels.