Hull motion damper and marine vessel
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorYoshihiro FUKUYAMA
Life of this patent
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Abstract
A hull motion damper includes an in-navigation motion damping structure to be located at a protruded position while a hull is sailing to correct an attitude of the hull and reduce motion of the hull, an at-rest motion damping structure to be located at a submerged position while the hull is at rest to reduce motion of the hull, and a common drive source common to the in-navigation motion damping structure and the at-rest motion damping structure.
Claims20
A hull motion damper to be attached to each of a port side and a starboard side of a transom of a hull, the hull motion damper comprising:
- an in-navigation motion damping structure to be located at a protruded position while the hull is sailing, at which at least a portion of the in-navigation motion damping structure protrudes downward from a bottom of the hull as viewed in a forward-rearward direction of the hull to correct an attitude of the hull and reduce motion of the hull;
- an at-rest motion damping structure to be located at a submerged position while the hull is at rest, at which at least a portion of the at-rest motion damping structure is submerged to reduce motion of the hull;
- and
- a common drive source common to the in-navigation motion damping structure and the at-rest motion damping structure.
A marine vessel comprising:
- a hull;
- and
- a hull motion damper attached to each of a port side and a starboard side of a transom of the hull;
- wherein
- the hull motion damper includes:
- an in-navigation motion damping structure to be located at a protruded position while the hull is sailing, at which at least a portion of the in-navigation motion damping structure protrudes downward from a bottom of the hull as viewed in a forward-rearward direction of the hull, to correct an attitude of the hull and reduce motion of the hull;
- an at-rest motion damping structure to be located at a submerged position while the hull is at rest, at which at least a portion of the at-rest motion damping structure is submerged, to reduce motion of the hull;
- and
- a common drive source common to the in-navigation motion damping structure and the at-rest motion damping structure.
A marine vessel comprising:
- a hull;
- and
- a hull motion damper attached to each of a port side and a starboard side of the hull;
- wherein
- the hull motion damper includes:
- an in-navigation motion damping structure to be located at a protruded position while the hull is sailing, at which at least a portion of the in-navigation motion damping structure protrudes downward from a bottom of the hull as viewed in a forward-rearward direction of the hull, to correct an attitude of the hull and reduce motion of the hull;
- an at-rest motion damping structure to be located at a submerged position while the hull is at rest, at which at least a portion of the at-rest motion damping structure is submerged, to reduce motion of the hull;
- and
- a common drive source common to the in-navigation motion damping structure and the at-rest motion damping structure.
Dependencies are inferred from the claim text.