Watercraft
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsToshiyuki Hattori, Fumihiko Ebihara
Life of this patent
Estimating the term…
Abstract
A hull configuration for a small personal watercraft having a hull configuration that permits the watercraft to be ridden and leaned like a motorcycle and which will preclude excess spray from passing upward beyond the gunnel. A ventilating cover assembly is provided for accessing the engine compartment and a forwardly positioned fuel tank is incorporated having a filler neck that is accessible at one side of the deck.
Claims41
A hull configuration for a small personal watercraft comprised of a bow portion and an underside, the forward part of said bow portion being generally vertically disposed from an upper end to a lower end thereof, said lower end merging into said underside through a curved section having a gradual curve in side view to provide a high volume for flotation within a relatively short length and to divert water away from the upper part of said hull, the vertical height of said curved section being no greater than the vertical height of said forward part, and a pair of recessed areas extending along the sides of said bow beginning at a point rearwardly of said forward part and from said gradually curved area and continuing along the water line for reducing the upward direction of water along the sides of said hull as said watercraft travels through the body of water.
A hull configuration for a small personal watercraft comprised of a bow portion and a underside, the forward part of said bow portion being generally vertically disposed from an upper end to the lower end thereof, said lower end merging into said underside along a gradual curve to provide a high volume for flotation within a relatively short length and to divert water away from the upper part of said hull, said bow portion of said hull being V-shaped with the V merging at the vertically extending forward part, a pair of recessed areas extending along the sides of said bow from said gradually curved area and along the water line for reducing the upward direction of water along the sides of said hull as said watercraft travels through the body of water, the upper end of said bow portion terminating in a forwardly protruding gunnel, said hull being comprised of a joined deck portion and lower portion defining at least one cavity, an access opening formed in said deck portion for accessing said cavity, and a combined cover and ventilation assembly for detachably covering said access opening and ventilating at least in part said cavity, said cover and ventilation assembly being comprised of a pair of joined members defining therebetween a further cavity, atmospheric vent means in one of said members for the admission of and discharge of air from said further cavity, and circulating means for circulating air between said cavity and said further cavity for ventilating said cavity.
A hull as set forth in claim 14 wherein the circulating means comprises a forwardly positioned inlet opening for circulating air from said further cavity forward portion into said cavity and a rearwardly positioned discharge opening for discharging air from said cavity to said further cavity rearward portion.
A hull arrangement for a small watercraft, said hull being comprised of joined deck and lower portions defining at least one cavity, an access opening in said deck portion for accessing said cavity, and a combined cover and ventilating assembly for detachably covering said access opening and ventilating at least in part said cavity, said cover and ventilation assembly being comprised of a pair of joined members defining therebetween a further cavity, atmospheric vent means in one of said members for the admission of and discharge of air from said further cavity, and circulating means for circulating air between said cavity and said further cavity for ventilating said cavity.
Dependencies are inferred from the claim text.