Patent ID: 7938076

Claim:
A keel ( 1 ) mechanism for a sailboat ( 10 ), wherein the keel ( 1 ) comprises a drive mechanism for moving the keel ( 1 ) linearly along the axis (x) extending from the fore end to rear end of the sailboat ( 10 ), and swinging the keel around the axis (x) extending from the fore end to rear end of the sailboat ( 10 ), and swinging the keel around the axis extending from larboard to starboard of the sailboat in response to conditions taking place, wherein the drive mechanism moving the keel ( 1 ) linearly along the axis (x) extending from the fore end to rear end of the sailboat ( 10 ) comprises a threaded shaft ( 2 ) capable of rotating around of its axis, at least one threaded arm-coupling element ( 4 ) that can be positioned on said threaded shaft and cooperating with the threads of the threaded shaft, and at least one arm ( 3 ) one end of which is connected to the at least one threaded arm-coupling element ( 4 ) and to the keel ( 1 ) from the other end.