Hull reinforcing system
A system for reinforcing a boat hull is disclosed herein. The system includes two longitudinal supports positioned on opposite sides of a keel of the hull. A bridge structure extends across the keel and interconnects the longitudinal supports.
1. A boat comprising:
A) a hull including a keel, a starboard side and a port side;
B) a system for reinforcing the hull, the system including first longitudinal support positioned starboard of the keel and a second support positioned port of the keel, each of the first and second longitudinal supports including:
i) a bottom wall that extends along the hull and is bonded to the hull, the bottom wall including inner and outer ends;
ii) an inner wall that extends upwardly away from the hull, the inner wall being connected to the inner end of the bottom wall; and
iii) an outer wall that extends upwardly away from the hull, the outer wall connected to the outer end of the bottom wall;
C) wherein the bottom wall and the inner and outer walls of the first and second longitudinal supports defining first and second channels having open sides that face in an upward direction, the first and second channels each having a length that extends in a longitudinal direction;
D) and wherein the inner walls of the first and second longitudinal supports include upper ends that are interconnected by a bridge structure, the bridge structure spanning the keel and being configured to support a floor structure, the inner walls of the first and second longitudinal supports and the bridge structure defining an intermediate channel having an open side that faces in a downward direction, the intermediate channel being located over the keel.
2. The boat of claim 1 , wherein the inner walls are unitarily connected to the bridge structure.
3. The boat of claim 2 , further comprising a floor structure bonded to a top surface of the bridge structure, the floor structure extending over the open sides of the first and second channels.
4. The boat of claim 3 , wherein the outer walls of the longitudinal supports include upper ends, and wherein the boat further includes a starboard floor supporting structure that extends from the starboard side of the hull to the upper end of the outer wall of the first longitudinal support, and a port floor supporting structure that extends from the port side of the hull to the upper end of the outer wall of the second longitudinal support.
5. The boat of claim 4 , wherein the bridge structure, the starboard floor supporting structure and the port floor supporting structure cooperate to define a transverse notch in which a cross-brace is positioned.
6. The boat of claim 5 , wherein the cross-brace extends transversely through the first and second channels.
7. The boat of claim 6 , wherein the first and second channels are filled with a buoyant material.
8. The boat of claim 1 , wherein the bridge structure does not extend across the open sides of the first and second channels.
9. The boat of claim 1 , wherein the inner walls, the outer walls, the bottom walls and the bridge structure are all defined by a continuous, uninterrupted layer of fiber reinforced resin.
10. The boat of claim 1 , wherein the bridge structure has a longitudinal dimension and a transverse dimension, the longitudinal dimension being greater than the transverse dimension.
11. The boat of claim 1 , wherein the bridge structure defines at least one transverse slot, and wherein a cross-brace is positioned within the transverse slot.
12. The boat of claim 11 , wherein the bridge structure defines at least two transverse slots that are spaced-apart in a longitudinal direction, and wherein cross-braces are positioned within the transverse slots.
13. The boat of claim 12 , wherein the transverse slots are upwardly opening slots each having a depth that is less than a height of the inner walls of the first and second longitudinal supports.
14. A boat comprising:
a fiber reinforced resin hull including a keel, a starboard side and a port side;
a stringer system for reinforcing the hull, the stringer system including a first longitudinal support positioned starboard of the keel and a second longitudinal support positioned port of the keel;
a bridge structure that interconnects the first and second longitudinal supports, the bridge structure being spaced above the keel and configured to support a floor structure, the bridge structure extending over the keel and spanning a distance between the first and second longitudinal supports, the bridge structure extending along at least 50 percent of the length of each of the first and second reinforcing structures; and
the bridge structure and the first and second longitudinal supports being formed from a continuous, uninterrupted layer of fiber reinforced resin, the bridge structure and the first and second longitudinal supports defining a downwardly open channel located over the keel.
15. The boat of claim 14 , wherein the bridge structure defines at least one transverse slot, and wherein a cross-brace is positioned within the transverse slot.
16. The boat of claim 15 , wherein the bridge structure defines at least two generally parallel transverse slots, and wherein cross-braces are positioned within the transverse slots.
17. The boat of claim 16 , wherein the transverse slots are upwardly opening slots each having a depth that is less than a height of the first and second longitudinal supports.
18. The boat of claim 14 , first comprising a starboard floor supporting structure that extends from the first longitudinal support to the starboard side of the hull, and a port floor supporting structure that extends from the second longitudinal support to the port side of the hull, the starboard floor supporting structure being unitarily connected with the first longitudinal support and the port floor supporting structure being unitarily connected with the second longitudinal support.
19. The boat of claim 18 , further comprising a floor structure supported above the bridge structure, the starboard floor supporting structure and the port floor supporting structure.
20. The boat of claim 19 , wherein the floor structure is bonded to the bridge structure, the starboard floor supporting structure and the port floor supporting structure.
21. The boat of claim 14 , wherein each of the longitudinal supports defines an upwardly open channel.
22. A boat comprising:
a hull including a keel, a starboard side and a port side;
a stringer system for reinforcing the hull, the stringer system including a first longitudinal support positioned starboard of the keel and a second longitudinal support positioned port of the keel;
a middle structure that extends across the keel and interconnects the first and second reinforcing structures, the middle structure extending along at least 50 percent of the length of each of the first and second longitudinal supports; and
the middle structure defining at least one transverse slot in which a cross-brace is positioned.
23. The boat of claim 22 , wherein the middle structure defines at least two generally parallel transverse slots, and wherein cross-braces are positioned within the transverse slots.
24. The boat of claim 23 , wherein the transverse slots open in an upward direction, and each have a depth less than a height of each of the longitudinal supports.
25. The boat of claim 22 , further comprising a starboard support structure that extends toward the starboard side of the hull from the first longitudinal support and a port support structure that extends toward the port side of the hull from the second longitudinal support.
26. The boat of claim 25 , wherein the at least one transverse slot extends through the middle support structure, the starboard support structure and the port support structure.
27. The boat of claim 26 , wherein top surfaces of the middle structure, the starboard support structure and the port support structure are generally co-planar.
28. A method for making a boat comprising:
forming a hull having a keel;
forming a stringer piece including first and second spaced-apart channel portions and an intermediate channel portion located between the first and second channel portions, the first, second, and intermediate channel portions each having an open side positioned opposite from a closed side;
securing a floor structure over a top side of the stringer piece such that the open sides of the first and second channel portions are covered;
positioning the stringer piece within the hull with the first and second channel portions positioned on opposite sides of the keel, and with the intermediate channel portion located over the keel and extending across the keel, the closed side of the intermediate channel portion being located adjacent to the floor structure for supporting the floor structure, and the closed sides of the first and second channel portions being located adjacent to the hull; and
bonding the closed sides of the first and second channel portions to the hull.
29. The method of claim 28 , wherein the hull is V-shaped, and the closed sides of the first and second channel portions are angled to match the hull.
30. The method of claim 28 , wherein the first, second and intermediate channel portions are unitarily formed by applying fiber reinforced resin to an open face mold.
31. The boat of claim 1 , wherein the intermediate channel defines an open region extending along the keel of the hull.
32. The boat of claim 1 , wherein the bridge structure that interconnects the upper ends of the inner walls of the first and second longitudinal supports is a planar bridge structure.
33. The boat of claim 14 , wherein the downwardly open channel defines an open region extending along the keel of the hull.
34. The boat of claim 14 , wherein the bridge structure that interconnects the first and second longitudinal supports is a planar bridge structure.
35. The method of claim 28 , wherein the intermediate channel portion defines an open region extending along the keel of the hull.