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US 7,428,877 B2Granted
Small watercraft
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorYoshinori Tsumiyama
Life of this patent
Estimating the term…
Abstract
A small watercraft is provided. The small watercraft comprises a hull formed to have a substantially uniform thickness by using reinforced fibers impregnated with resin. The hull includes a curved portion formed by protruding outward and curving a part of the hull, and a filling material filled in a groove portion on an inner side of the hull which is created by forming the curved portion.
Claims7
A small watercraft comprising:
- a hull formed to have a substantially uniform thickness by using reinforced fibers impregnated with resin, the hull including:
- a curved portion formed by protruding outward from an outer surface of a part of the hull so as to have a groove portion inside thereof, wherein the curved portion is a spray strip portion formed on a bow of the hull;
- and
- a filling material filled in the groove portion;
- wherein the filling material differs from said reinforced fibers impregnated with resin forming the hull;
- and
- wherein the filling material is filled in the groove portion, such that a surface of the filling material defines a continuous smooth curved surface connecting an inner surface of the hull above the groove portion and an inner surface of the hull below the groove portion in a section across the groove portion in upward and downward directions.
4 more elements
A method of manufacturing a hull of a small watercraft, comprising:
- forming the hull to have a substantially uniform thickness by using reinforced fibers impregnated with resin and by protruding outward from an outer surface thereof to form a spray strip portion having a groove inside thereof on a bow of the hull;
- thermally hardening the hull after forming the hull;
- filling a filling material in the groove portion of the spray strip portion such that a surface of the filling material defines a continuous smooth curved surface connecting an inner surface of the hull above the groove portion with an inner surface of the hull below the groove portion in a section crossing the groove portion in upward and downward directions after thermally hardening the hull, wherein the filling material is made of reinforced fiber impregnated with resin;
- and
- thermally hardening the filling material after filling the filling material.
2 more elements
Dependencies are inferred from the claim text.