Hull for small watercraft
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorToshiyuki Hattori
Life of this patent
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Abstract
An improved hull for watercraft provides a secondary access port to an engine compartment. The secondary access port facilitates service or maintenance of certain engine components (e.g., spark plugs) which are hard to reach from the main access port, whether due to distance from the main access port, angle of approach through the main access port, or obstruction of reach by other watercraft components. The hull design also provides enhanced lift of the watercraft, during initial acceleration, to a cruising position up on plane, and better control during sharp, high speed turns.
Claims38
A small watercraft comprising a hull, said hull including at least two footrests positioned on either side of a pedestal located in a rider area, the pedestal comprising two side walls bridged by a seat, said hull defining an enclosed space below the seat, at least one of said pedestal side walls having a maintenance port therein communicating with the enclosed space to provide access to the enclosed space.
A small watercraft comprising a hull defining an engine compartment, and an internal combustion engine housed within said engine compartment, the engine including an engine body and at least one spark plug removably attached to said engine body and movable along a plug insertion axis, the hull including at least first and second maintenance ports communicating with said engine compartment, said first maintenance port being proximate to said spark plug and having a maintenance port axis suitably aligned with said plug insertion axis, and said second maintenance port being positioned above the engine and having a maintenance port axis which is skewed relative to the maintenance port axis of said first maintenance port.
A small watercraft comprising a hull defining an engine compartment, and an internal combustion engine housed within said engine compartment, the engine including an engine body and at least one spark plug removably attached to said engine body and movable along a plug insertion axis, the hull including a maintenance port communicating with said engine compartment proximate to said spark plug and having a maintenance port axis suitably aligned with said plug insertion axis, said maintenance port being positioned on a side wall of said hull.
A small watercraft comprising a hull defining an engine compartment, an engine housed within said engine compartment, said hull comprising a primary access port being in communication with said engine compartment and having a primary port axis, and a secondary access port being in communication with the engine compartment and having characterized by a secondary port axis, said secondary port axis oriented non-parallel to said primary port axis.
A small watercraft comprising a hull having a bow portion and a stern portion, at least the stern portion of the hull including a convex lip defining a downward-facing open recess and at least one lip insert positioned at least partially within at least a portion of said recess.
A small motorized watercraft comprising a hull including at least one side edge, said side edge defining at least in part a downward-facing channel, at least a tapered portion of channel being tapered from a fore end to a relatively more shallow aft end.
Dependencies are inferred from the claim text.