초록 ▼

A rudder device is disclosed for a hydrojet vessel. The rudder device comprises a first mounting bracket coupled to a first hydrojet. A first rudder is coupled to the first hydrojet and the first mounting bracket. A second mounting bracket is coupled to a second hydrojet. A second rudder is coupled

A rudder device is disclosed for a hydrojet vessel. The rudder device comprises a first mounting bracket coupled to a first hydrojet. A first rudder is coupled to the first hydrojet and the first mounting bracket. A second mounting bracket is coupled to a second hydrojet. A second rudder is coupled to the second hydrojet and the second mounting bracket. A coupling rod is pivotably coupled to the first hydrojet, the second hydrojet and a hull rudder for pivoting in alignment and in unison the first rudder with the first hydrojet and the second rudder with the second hydrojet relative to the hull rudder. The first rudder and the second rudder provide steerage to the vessel during non directional thrust absent from the first hydrojet and the second hydrojet.

대표청구항 ▼

1. A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust

1. A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising: a first general U-shaped mounting bracket coupled to the first hydrojet and partially encircling the first hydrojet,a first rudder pivotably coupled to the first hydrojet by a first primary horizontal pivot;a first side plate pivotably coupled to the first hydrojet by a first secondary horizontal pivot;a first coupling plate coupled between said first rudder and said first side plate;a first coil spring engaging said first primary horizontal pivot for promoting said first rudder and said first side plate being positioned in a non-pivoted position;a second general U-shaped mounting bracket coupled to the second hydrojet and partially encircling the second hydrojet;a second rudder pivotably coupled to the second hydrojet by a second primary horizontal pivot;a second side plate pivotably coupled to the second hydrojet by a second secondary horizontal pivot;a second coupling plate coupled between said second rudder and said second side plate;a second coil spring engaging said second primary horizontal pivot for promoting said second rudder and said second side plate being positioned in a non-pivoted position; andsaid first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting in alignment and in unison with the hull rudder for improving the steerability of the vessel. 2. A rudder device for a hydrojet vessel as set forth in claim 1, further including a first primary J-shaped locking tab coupled to said first general U-shaped mounting bracket; said first general U-shape mounting bracket and said first primary J-shaped locking tab compressing the first hydrojet there between for defining a first primary clamp;a first secondary J-shaped locking tab coupled to said first general U-shaped mounting bracket;said first general U-shape mounting bracket and said first secondary J-shaped locking tab compressing the first hydrojet there between for defining a first secondary clamp;a second primary J-shaped locking tab coupled to said second general U-shaped mounting bracket;said second general U-shape mounting bracket and said second primary J-shaped locking tab compressing the second hydrojet there between for defining a second primary clamp;a second secondary J-shaped locking tab coupled to said second general U-shaped mounting bracket; andsaid second general U-shape mounting bracket and said second secondary J-shaped locking tab compressing the second hydrojet there between for defining a second secondary clamp. 3. A rudder device for a hydrojet vessel as set forth in claim 2, further including a first primary vertical side stabilizing plate coupled to said first primary J-shaped locking tab for preventing lateral displacement of said first rudder; a first secondary vertical side stabilizing plate coupled to said first secondary J-shaped locking tab for preventing lateral displacement of said first side plate;a second primary vertical side stabilizing plate coupled to said second primary J-shaped locking tab for preventing lateral displacement of said second rudder; anda second secondary vertical side stabilizing plate coupled to said second secondary J-shaped locking tab for preventing lateral displacement of said second side plate. 4. A rudder device for a hydrojet vessel as set forth in claim 2, further including a first steering assist rudder coupled to said first general U-shape mounting bracket; said first steering assist rudder positioned ahead of the first vertical pivot for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;a second steering assist rudder coupled to said second general U-shape mounting bracket; andsaid second steering assist rudder positioned ahead of the second vertical pivot for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water. 5. A rudder device for a hydrojet vessel as set forth in claim 2, further including a first secondary steering assist rudder coupled to said first general U-shape mounting bracket; said first secondary steering assist rudder positioned ahead of the first vertical pivot for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;a second secondary steering assist rudder coupled to said second general U-shape mounting bracket; andsaid second secondary steering assist rudder positioned ahead of the second vertical pivot for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water. 6. A rudder device for a hydrojet vessel as set forth in claim 1, further including a first primary plurality of apertures in said first rudder; a first secondary plurality of apertures in said first side plate;a first primary removable fastener engaging said first coupling plate and one of said first primary plurality of apertures in said first rudder;a first secondary removable fastener engaging said first coupling plate and one of said first secondary plurality of apertures in said first side plate;said first primary removable fastener, said first secondary removable fastener, said first coupling plate and said first plurality of apertures defining a first adjustable rudder elevation for pivoting said first rudder on said first horizontal pivot and altering the elevation of said first rudder;said first primary removable fastener, said first secondary removable fastener, said first coupling plate and said first plurality of apertures defining an adjustable angle of said first coupling plate relative to the first hydrojet;said adjustable angle defining a non-angle of said first coupling plate relative to the first hydrojet for providing a non-upward force during forward displacement of the vessel through a body of water and maintaining said first rudder in a non-elevated position;said adjustable angled defining an angle of said first coupling plate relative to the first hydrojet for providing an upward force during forward displacement of the vessel through a body of water and pivoting said first rudder in an elevated position;a second primary plurality of apertures in said second rudder;a second secondary plurality of apertures in said second side plate;a second primary removable fastener engaging said second coupling plate and one of said second primary plurality of apertures in said second rudder;a second secondary removable fastener engaging said second coupling plate and one of said second secondary plurality of apertures in said second side plate;said second primary removable fastener, said second secondary removable fastener, said second coupling plate and said second plurality of apertures defining a second adjustable rudder elevation for pivoting said second rudder on said second horizontal pivot and altering the elevation of said second rudder;said second removable fastener, said second secondary removable fastener, said second coupling plate and said second plurality of apertures defining an adjustable angled of said second coupling plate relative to the second hydrojet;said adjustable angled defining a non-angle of said second coupling plate relative to the second hydrojet for providing a non-upward force during forward displacement of the vessel through a body of water and maintaining said second rudder in a non-elevated position; andsaid adjustable angled defining an angle of said second coupling plate relative to the second hydrojet for providing an upward force during forward displacement of the vessel through a body of water and pivoting said second rudder in an elevated position. 7. A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising: a first general U-shaped mounting bracket coupled to the first hydrojet and partially encircling the first hydrojet;a first rudder pivotably coupled to the first hydrojet by a first primary horizontal pivot;a first side plate pivotably coupled to the first hydrojet by a first secondary horizontal pivot;a first coupling plate coupled between said first rudder and said first side plate;a first coil spring engaging said first primary horizontal pivot for promoting said first rudder and said first side plate being positioned in a non-pivoted position;a second general U-shaped mounting bracket coupled to the second hydrojet and partially encircling the second hydrojet;a second rudder pivotably coupled to the second hydrojet by a second primary horizontal pivot;a second side plate pivotably coupled to the second hydrojet by a second secondary horizontal pivot;a second coupling plate coupled between said second rudder and said second side plate;a second coil spring engaging said second primary horizontal pivot for promoting said second rudder and said second side plate being positioned in a non-pivoted position;said first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting in alignment and in unison with the hull rudder for improving the steerability of the vessel;a first steering assist rudder extending forward of said first rudder;said first steering assist rudder positioned ahead of the first vertical pivot for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;a second steering assist rudder extending forward of said second rudder; andsaid second steering assist rudder positioned ahead of the second vertical pivot for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water. 8. A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising: a first mounting bracket coupled to the first hydrojet;a first rudder pivotably coupled to the first hydrojet;a first side plate pivotably coupled to the first hydrojet;a first coupling plate coupled between said first rudder and said first side plate;a first spring engaging said first rudder for promoting said first rudder and said first side plate being positioned in a non-pivoted position;a second mounting bracket coupled to the second hydrojet;a second rudder pivotably coupled to the second hydrojet;a second side plate pivotably coupled to the second hydrojet;a second coupling plate coupled between said second rudder and said second side plate;a second spring engaging said second rudder for promoting said second rudder and said second side plate being positioned in a non-pivoted position;said first rudder with the first hydrojet and said second rudder with the second hydrojet pivoting with the hull rudder for improving the steerability of the vessel. 9. A rudder device for a hydrojet vessel, the hydrojet vessel having a hull including a stern, a port side and a starboard side, a first vertical pivot pivotably coupling a first hydrojet and a second vertical pivot pivotably coupling a second hydrojet to the stern for producing a directional thrust and propelling the hydrojet vessel through a body of water, a hull rudder pivotably coupled to the stern between the first hydrojet and the second hydrojet, a linkage coupling the first hydrojet and the second hydrojet with the hull rudder for pivoting the first hydrojet and the second hydrojet with the hull rudder, the rudder device comprising: a first mounting bracket coupled to the first hydrojet;a first rudder coupled to the first hydrojet;a first side plate coupled to the first hydrojet;a first coupling plate coupled between said first rudder and said first side plate;a second mounting bracket coupled to the second hydrojet;a second rudder coupled to the second hydrojet;a second side plate coupled to the second hydrojet;a second coupling plate coupled between said second rudder and said second side plate;a first steering assist rudder coupled to said first mounting bracket;said first steering assist rudder positioned ahead said first rudder for assisting in pivoting the first hydrojet during forward displacement of the vessel through a body of water;a second steering assist rudder coupled to said second mounting bracket; andsaid second steering assist rudder positioned ahead of said second rudder for assisting in pivoting the second hydrojet during forward displacement of the vessel through a body of water.