IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0623691
(2012-09-20)
|
등록번호 |
US-8800468
(2014-08-12)
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발명자
/ 주소 |
- VanNimwegen, Edward
- Steed, Brent
- Niemier, Tim
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출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
64 |
초록
In one example, a watercraft, such as a kayak, is provided that has a body which includes a hull, a cockpit connected with the hull, and a backrest removably attached to the body. The watercraft may additionally include a fish tail configuration near a stern of the watercraft.
대표청구항
▼
1. A personal watercraft, comprising: a body having a bow and a stern whose respective shapes are substantially different from each other, the stern being shaped in a forked fish tail configuration, and the body comprising: a hull having a bottom that includes first and second longitudinal ribs disp
1. A personal watercraft, comprising: a body having a bow and a stern whose respective shapes are substantially different from each other, the stern being shaped in a forked fish tail configuration, and the body comprising: a hull having a bottom that includes first and second longitudinal ribs disposed on opposite respective sides of a centerline of the hull, and the bottom of the hull further including a central rib positioned proximate the centerline of the hull;a cockpit connected with the hull;a seat partly disposed within the cockpit;a first set of foot wells on a first side of the cockpit; anda second set of foot wells on a second side of the cockpit. 2. The personal watercraft as recited in claim 1, wherein a portion of the body comprises a unitary one-piece construction. 3. The personal watercraft as recited in claim 1, wherein at least a portion of the body comprises blow-molded plastic. 4. The personal watercraft as recited in claim 1, wherein the cockpit is connected with the hull by way of one or more scuppers. 5. The personal watercraft as recited in claim 3, wherein one of the scuppers is a tack-off. 6. The watercraft as recited in claim 1, further comprising a removable backrest that is movably attached to the body. 7. The personal watercraft as recited in claim 1, further comprising a swim step located near the stern. 8. The personal watercraft as recited in claim 1, wherein the seat is located relatively higher in the personal watercraft than the foot wells. 9. The personal watercraft as recited in claim 1, wherein the personal watercraft accommodates two or more adults. 10. A kayak, comprising: a body having a stern shaped in a forked fish tail configuration, and the body comprising: a hull having a bottom that includes a recessed portion bounded on a portion of each side by a knuckle extending along a portion of a length of the body, the knuckles diverging from each other proximate the stern of the kayak so as to collectively implement a portion of the forked fish tail configuration of the stern, and wherein the knuckles extend forward to define boundaries of a central recessed portion that tapers in width as the central recessed portion approaches a bow of the kayak, and the hull further comprising first and second longitudinal ribs disposed on opposite respective sides of the central recessed portion;a cockpit connected with the hull by way of one or more scuppers; andtwo or more seats partly disposed within the cockpit; anda backrest located proximate one of the seats, the backrest being removably connected to the body and rotatable over a defined range of motion. 11. The kayak as recited in claim 10, wherein the backrest has a rotational range of motion of about 180 degrees. 12. The kayak as recited in claim 10, wherein the backrest is lockable in one of a substantially vertical position and a substantially horizontal position. 13. The kayak as recited in claim 10, further comprising a seat strap connectible to the backrest and to an attachment point of the body, the seat strap having an adjustable length, and the attachment point residing in a cutout defined in the body. 14. The personal watercraft as recited in claim 1, wherein the personal watercraft comprises a kayak, and wherein the forked fish tail configuration comprises a means for reducing hydrodynamic resistance that performs one or more of: enabling the kayak to track in a relatively straight line, regardless of whether the kayak is being paddled or not; facilitating stability of the kayak near the stern of the kayak; facilitating flotation of the kayak near the stern of the kayak; facilitating flow of water off of the stern of the kayak; facilitating flow of water away from the stern of the kayak; and, facilitating lateral stability of the kayak. 15. The kayak as recited in claim 10, wherein a portion of the body comprises blow-molded plastic having a unitary one-piece construction. 16. The personal watercraft as recited in claim 1, wherein the forked fish tail configuration comprises a tail portion whose outer edges extend aft past a middle part of the tail portion that is positioned between the outer edges of the tail portion. 17. The personal watercraft as recited in claim 1, wherein the forked fish tail configuration is defined in part by a pair of knuckles extending along a portion of a length of the hull, the knuckles diverging from each other proximate the stern of the personal watercraft. 18. The personal watercraft as recited in claim 17, wherein the pair of knuckles extend forward to define boundaries of a central recessed portion that tapers as the central recessed portion approaches the bow. 19. The personal watercraft as recited in claim 17, further comprising a pair of longitudinal recesses each disposed inboard of a respective longitudinal rib, wherein each of the longitudinal recesses is cooperatively defined in part by a respective one of the longitudinal ribs and a respective one of the knuckles, and wherein the recesses taper as they approach the stern. 20. The personal watercraft as recited in claim 1, further comprising a pair of knuckles and a pair of longitudinal recesses, each longitudinal recess disposed outboard of a respective longitudinal rib, wherein each of the longitudinal recesses is cooperatively defined in part by a respective one of the longitudinal ribs, a respective one of the knuckles, and a central rib, and wherein the recesses taper as they approach the stern. 21. The personal watercraft as recited in claim 1, wherein the first and second longitudinal ribs cooperate to partly define a V-shaped portion disposed proximate the centerline. 22. The personal watercraft as recited in claim 1, wherein the first and second longitudinal ribs extend a substantial portion of a length of the personal watercraft. 23. The personal watercraft as recited in claim 1, wherein the central rib is substantially shorter than a length of the personal watercraft. 24. The personal watercraft as recited in claim 1, wherein the central rib is substantially shorter than the first and second longitudinal ribs. 25. The kayak as recited in claim 10, further comprising an additional backrest proximate another of the seats, wherein the backrest and additional backrest are interchangeable with each other. 26. The kayak as recited in claim 10, wherein the backrest includes a hinge portion, and the kayak further comprises: a recess defined in the body proximate one of the seats; anda hinge bracket partly received within, and attached to, the recess, the hinge bracket defining a channel within which the hinge portion of the backrest is rotatably received. 27. The kayak as recited in claim 10, further comprising one or more straps connectible to the body and to the backrest. 28. The kayak as recited in claim 27, further comprising a recess defined in the body, wherein an attachment point is disposed in the recess, and one of the straps is releasably connectible to the attachment point. 29. The kayak as recited in claim 10, wherein the hull includes a central rib positioned proximate a centerline of the hull. 30. The kayak as recited in claim 10, further comprising a pair of longitudinal recesses each disposed inboard of a respective longitudinal rib, wherein each of the longitudinal recesses is cooperatively defined in part by a respective one of the longitudinal ribs and a respective one of the knuckles, and wherein the recesses taper as they approach the stern. 31. The kayak as recited in claim 10, further comprising a pair of knuckles and a pair of longitudinal recesses, each longitudinal recess disposed outboard of a respective longitudinal rib, wherein each of the longitudinal recesses is cooperatively defined in part by a respective one of the longitudinal ribs, a respective one of the knuckles, and a central rib, and wherein the longitudinal recesses taper as they approach the stern.
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