Roller towing bitt

1. A towing bitt assembly comprising:

an arched structure defining an opening for a towing rope to run there through;

a roller assembly comprising

a coupling means fastened around the arched structure for coupling the roller assembly to the arched structure so that the roller assembly is movable along a centre line of the arched structure; and

a roller means for guiding the towing rope, the roller means surrounding a section of the coupling means fastened to the arched structure, and being rotatable around the centre line of the arched structure; and

at least one damper means connected to the arched structure and to the roller assembly, wherein the at least one damper means is configured to exert a force causing the roller assembly to move to a central position along the arched structure.

2. The towing bitt assembly according to claim 1 , wherein an even number of damper means are provided, positioned symmetrically with respect to a plane through the central position along the arched structure.

3. The towing bitt assembly according to claim 1 , wherein the damping means are hydraulic damping means.

4. The towing bitt assembly according to claim 1 , wherein the roller assembly comprises a nozzle for the towing rope to run there through.

5. The towing bitt assembly according to claim 1 , wherein the roller means is formed as a wheel having a concave outer surface for guiding the towing rope.

6. The towing bitt assembly according to claim 1 , wherein at least one slide bearing is provided between the roller means and the coupling means.

7. The towing bitt assembly according to claim 1 , wherein the arched structure comprises at least one guide to which the coupling means is coupled for guiding movement along the centre line of the arched structure.

8. The towing bitt assembly according to claim 1 , wherein the roller assembly can be moved along the arched structure within an angular range between −90 degrees and +90 degrees, wherein an angular position within the angular range is defined with respect to a central position along the arched structure.

9. The towing bitt assembly according to claim 8 , wherein the angular range is between −90 degrees and +90 degrees with respect to the central position along the arched structure.

10. The towing bitt assembly according to claim 9 , wherein the angular range is between −80 degrees and +80 degrees with respect to the central position along the arched structure.

11. The towing bitt assembly according to claim 1 , wherein at least one stopper is located on each side of the arched structure to keep the roller assembly within a predefined angular range with respect to a central position along the arched structure.

12. The towing bitt assembly according to claim 1 , wherein the arched structure has a U-shape.

13. The towing bitt assembly according to claim 1 , further comprising a deck housing for fixing the arched structure to a deck of a boat.

14. The towing bitt assembly according to claim 13 , wherein the deck housing allows the arched structure to have one of at least a first and a second position, the first and the second position being spaced apart by a distance.

15. The towing bitt assembly according to claim 14 , further comprising a towing winch with a first and a second drum, wherein the first position is aligned for guiding a rope from the first drum and the second position is aligned for guiding a rope from the second drum.

16. The towing bitt assembly according to claim 14 , wherein the deck housing comprises a guiding system, and wherein the arched structure is configured to slide along the guiding system of the base in order to move between the first and the second position.