A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to f
A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to flex whenever a water force acting on the tail fin is greater than a predetermined amount.
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1. A fin stabilizer for stabilizing a watercraft against rolling movements, the fin stabilizer comprising: a first fin connected to and configured to be pivoted by a drive shaft and having a first fin central plane,a second fin being spaced from the first fin such that the second fin does not direct
1. A fin stabilizer for stabilizing a watercraft against rolling movements, the fin stabilizer comprising: a first fin connected to and configured to be pivoted by a drive shaft and having a first fin central plane,a second fin being spaced from the first fin such that the second fin does not directly contact any portion of the first fin, anda connection body comprising at least one elastic deformation body formed out of at least a first material and a rigid element formed out of a second material, the connection body being deformable and connecting the second fin to the first fin such that an angle between the second fin and the first fin central plane can vary, the connection body holding the second fin at a first angle with respect to the first fin central plane when a water force acting on the second fin is lower than a predetermined amount, the connection body being configured to change the angle between the second fin and the first fin central plane whenever the water force acting on the second fin is greater than the predetermined amount, the connection body being elastic such that when the water force acting on the second fin decreases from above the predetermined amount to below the predetermined amount the second fin reverts back to the first angle,wherein the connection body is connected to the first fin by a first connecting element and the connection body is connected to the second fin by a second connecting element, the rigid element extends from the first connecting element to the second connecting element and is embedded within the at least one deformation body, and wherein the first material is different than the second material. 2. The fin stabilizer according to claim 1, wherein the second fin is pivotably supported on the first fin about a pivot axis, the pivot axis being located within the connection body. 3. The fin stabilizer according to claim 1, wherein the at least one elastic deformation body at least partially connecting the first fin to the second fin. 4. The fin stabilizer according to claim 3, wherein the at least one elastic deformation body comprises a plurality of layers of different materials. 5. The fin stabilizer according to claim 3, wherein the at least one elastic deformation body is connected to the first fin by a friction-fit and/or interference-fit. 6. The fin stabilizer according to claim 3, wherein the at least one elastic deformation body extends from the first fin along the first fin central plane and connects the first fin to the second fin in a stepless manner. 7. The fin stabilizer according to claim 1, wherein the at least one rigid element at least sectionally connects the second fin to the first fin. 8. The fin stabilizer according to claim 1, wherein the rigid element includes at least one web. 9. A watercraft including at least one fin stabilizer according to claim 1. 10. The fin stabilizer according to claim 1, wherein the second fin is configured to retain its shape during operation such that the second fin does not deform during operation. 11. The fin stabilizer according to claim 1, wherein the first material is formed out of one of a polyurethane foam, a polyethylene foam, and a non-foam polyurethane elastomer, and, the second material is formed out of a plastic-based fiberglass composite material. 12. A fin stabilizer for stabilizing a watercraft against rolling movements, the fin stabilizer comprising: a first fin connected to and configured to be pivoted by a drive shaft and having a first fin central plane,a second fin being spaced from the first fin such that the second fin does not directly contact any portion of the first fin, anda connection body being deformable and connecting the second fin to the first fin such that an angle between the second fin and the first fin central plane can vary, the connection body holding the second fin at a first angle with respect to the first fin central plane when a water force acting on the second fin is lower than a predetermined amount, the connection body being configured to change the angle between the second fin and the first fin central plane whenever the water force acting on the second fin is greater than the predetermined amount, the connection body being elastic such that when the water force acting on the second fin decreases from above the predetermined amount to below the predetermined amount the second fin reverts back to the first angle,wherein the connection body comprises at least one elastic deformation body between the first fin and the second fin, the at least one elastic deformation body at least partially connecting the first fin to the second fin,wherein the at least one elastic deformation body includes at least one rigid element sectionally connecting the second fin to the first fin and wherein the at least one rigid element includes at least one web. 13. A fin stabilizer for stabilizing a watercraft against rolling movements, the fin stabilizer comprising: a first fin connected to and configured to be pivoted by a drive shaft and having a first fin central plane,a second fin, anda connection body being deformable and connecting the second fin to the first fin such that an angle between the second fin and the first fin central plane can vary, the connection body holding the second fin at a first angle with respect to the first fin central plane when a water force acting on the second fin is lower than a predetermined amount, the connection body being configured to change the angle between the second fin and the first fin central plane whenever the water force acting on the second fin is greater than the predetermined amount, the connection body being elastic such that when the water force acting on the second fin decreases from above the predetermined amount to below the predetermined amount the second fin reverts back to the first angle,the fin stabilizer further comprising a rigid element in the connection body extending in a direction from the first fin toward the second fin, the rigid element having a plurality of webs extending away from the rigid element. 14. The fin stabilizer according to claim 13, wherein the plurality of webs extend in a perpendicular direction with respect to a longitudinal direction of the fin stabilizer.
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이 특허에 인용된 특허 (6)
Beauchamp Charles H. (Jamestown RI) Dean Laurence M. (Newport RI) Raffa Anthony V. (Newport RI), Controllable camber fin.
Rudolf William B. (10001 Point Aux Chenes Rd. Ocean Springs MS 39564), Retractable steering device for cargo barges that increases maneuverability by providing a pivot point or points when al.
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