Keel mechanism for sailboats

1. 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.

2. A keel mechanism according to claim 1 , further comprising pins ( 5 ) provided at the connection point of said arms ( 3 ) with said threaded arm-coupling elements ( 4 ) and at the connection point of said arms ( 3 ) with the keel ( 1 ).

3. 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 swinging the keel along the axis (x) extending from the fore end to rear end of the sailboat ( 10 ) comprises a threaded shaft ( 2 ), at least one threaded arm-coupling element ( 4 ) that can be positioned on said threaded shaft ( 2 ), at least one arm ( 3 ) one end of which is coupled to the at least one threaded arm-coupling element ( 4 ) and to the keel ( 1 ) from the other end, and a channeled rotating tube ( 6 ) positioned so as to accommodate said threaded shaft ( 2 ) therein.

4. A keel mechanism according to claim 3 , wherein the channeled rotating tube ( 6 ) comprises a channel ( 9 ) opened along the longitudinal axis of the tube ( 6 ).

5. 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 swinging the keel around the axis extending from larboard to starboard of the sailboat comprises a threaded shaft ( 2 ), at least one threaded arm-coupling element ( 4 ) positioned on said threaded shaft ( 2 ), at least one arm ( 3 ), one end of which is coupled to the at least one threaded arm-coupling element ( 4 ) and to the keel ( 1 ) from the other end, and at least one piston ( 7 ) connected to the arms ( 3 ).

6. A keel mechanism according to claim 5 , wherein pins ( 5 ) are provided at the connection point of said arms ( 3 ) with said threaded arm-coupling elements ( 4 ) and at the connection point of said arms ( 3 ) with the keel ( 1 ).