[특허]Sailing boats

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Sailing boats

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B63B-015/00
미국특허분류(USC)	114/090
출원번호	UP-0561666 (2004-06-09)
등록번호	US-7533623 (2009-07-01)
우선권정보	GB-0314441.7(2003-06-20); GB-0320544.0(2003-09-02)
국제출원번호	PCT/GB04/002481 (2004-06-09)
§371/§102 date	20051220 (20051220)
국제공개번호	WO04/113160 (2004-12-29)
발명자 / 주소	Tostevin, Richard Edmund
대리인 / 주소	Barnes & Thornburg LLP
인용정보	피인용 횟수 : 0 인용 특허 : 3

초록
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A mast (1) is in the form of an egg-shaped closed loop that extends abeam of a hull (7). A main spar (2) is supported on the mast (1) and extends upwardly from a lower, fore position on the bowsprit (4) to a higher, aft position above the stern (12). A lateen sail (3) of triangular form has its longer side attached to the main spar (2) with its shorter sides depending from the main spar (2). The free corner of the sail (3) is tethered by ropes or sheets (14) to points on the sides of the hull (7) or deck such that it is positioned substantially above the centre line of the hull (7). The sail (3) can be fully deployed within the closed loop shape of the mast (1) without fouling the mast (1). This allows the sail (3) full and unrestricted deployment, results in exceptionally good sailing and provides swift and easy tacking.

대표
청구항
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The invention claimed is: 1. A sailing boat comprising: a hull; a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, extends upwardly at one side of the hull, outwardly beyond said side of the hull, and then inwardly to a point substantially above the centre line of the hull; a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast; and a sail depending from the main spar for deployment to one side of the mast: wherein said mast extends outwardly of the hull for a distance equal to at least 20 percent of the extreme beam of the hull. 2. A sailing boat according to claim 1, wherein said mast is mounted so as to afford movement of the mast between an operative position in which it extends abeam of the hull and a stowed position in which it extends more fore and aft of the hull. 3. A sailing boat according to claim 2, wherein the mast when in said stowed position extends substantially fore and aft of the hull. 4. A sailing boat according to claim 2, wherein said movement comprises pivoting movement of the mast between said operative position and said stowed position. 5. A sailing boat according to claim 1, including stays for supporting opposite sides of the mast. 6. A sailing boat according to claim 5, including stay adjustment means for adjusting said stays and thereby the take of the mast. 7. A sailing boat according to claim 1, wherein said main spar extends at an angle in the range 35 to 55 degrees to the horizontal. 8. A sailing boat according to claim 7, wherein said main spar extends at an angle in the range 40 to 50 degrees to the horizontal. 9. A sailing boat according to claim 8, wherein said main spar extends at an angle of substantially 45 degrees to the horizontal. 10. A sailing boat according to claim 1, wherein said mast extends outwardly of the hull for a distance equal to at least 30 percent of the extreme beam of the hull. 11. A sailing boat according to claim 1, wherein said mast extends outwardly of the hull for a distance equal to at least 40 percent of the extreme beam of the hull. 12. A sailing boat according to claim 1, wherein said mast extends outwardly of the hull for a distance equal to at least 50 percent of the extreme beam of the hull. 13. A sailing boat according to claim 1, wherein said mast extends outwardly of the hull for a distance equal to at least 60 percent of the extreme beam of the hull. 14. A sailing boat comprising: a hull; a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, and comprises a pair of opposing side portions, each of which extends upwardly at a respective side of the hull, outwardly beyond said side of the hull, and then inwardly to a point substantially above the centre line of the hull, where said side portions are joined; a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast; and a sail depending from the main spar for deployment between said opposing side portions: wherein said mast extends outwardly of the hull for a distance equal to at least 20 percent of the extreme beam of the hull. 15. A sailing boat according to claim 14, wherein the maximum width of said mast is in the range 60 to 90 percent of its height. 16. A sailing boat according to claim 15, wherein the maximum width of said mast is in the range 65 to 85 percent of its height. 17. A sailing boat according to claim 16, wherein the maximum width of said mast is in the range 70 to 80 percent of its height. 18. A sailing boat according to claim 17, wherein the maximum width of said mast is substantially 75 percent of its height. 19. A sailing boat comprising: a hull; a mast that is mounted directly or indirectly on the hull so as to be substantially fixed in use, and comprises a pair of opposing side portions, each of which extends upwardly at a respective side of the hull, and then inwardly to a point substantially above the centre line of the hull, where said side portions are joined; a main spar supported on the mast with the main spar extending upwardly from a lower, fore position forward of the mast to a higher, aft position aft of the mast; and a sail depending from the main spar for deployment between said opposing side portions: wherein the maximum width of said mast is at least 60 percent of its height. 20. A sailing boat according to claim 19, wherein said hull is a single hull. 21. A sailing boat according to claim 19, wherein said opposing mast portions define a loop that is elliptical. 22. A sailing boat according to claim 19, wherein said opposing mast portions define a loop that is ovoid, with an apex at the top of the mast. 23. A sailing boat according to claim 19, wherein said mast is formed of at least one closed hollow member. 24. A sailing boat according to claim 23, wherein said mast is formed of a single closed hollow member having ends that are connected at the top of the mast. 25. A sailing boat according to claim 23, wherein said mast is formed of a plurality of closed hollow members having ends that are connected at the top and the bottom of the mast. 26. A sailing boat according to claim 25, wherein a tabernacle connects said ends of said closed hollow members at the bottom of the mast. 27. A sailing boat according to claim 23, wherein said hollow member is at least partially filled with foam or other buoyancy-assisting material. 28. A sailing boat according to claim 19, wherein said main spar is connected to the mast at or adjacent a top centre point of the mast. 29. A sailing boat according to claim 19, wherein said hull is provided with a bowsprit and a forward end of said main spar is located on said bowsprit, forward of the bow of the hull. 30. A sailing boat according to claim 29, including means for adjusting the position of said forward end of said main spar on said bowsprit. 31. A sailing boat according to claim 19, wherein said main spar has a cross-section that tapers towards its upper end. 32. A sailing boat according to claim 19, wherein said main spar has a degree of flexibility that increases towards its upper end. 33. A sailing boat according to claim 19, wherein said mast is located at a distance from the bow of the hull that is in the range 25 to 40 percent of the length of the hull. 34. A sailing boat according to claim 33, wherein said mast is located at a distance from the bow of the hull that is substantially one-third of the length of the hull. 35. A sailing boat according to claim 19, wherein said sail has a lower, aft corner that is tethered substantially above the centre line of the hull. 36. A sailing boat according to claim 35, including means for adjusting the position of said aft corner up to 100 mm either side of the centre line of the hull. 37. A sailing boat according to claim 19, wherein said sail extends from a position forward of the bow of the hull to a position substantially above the stern of the hull. 38. A sailing boat according to claim 19, wherein said sail is of substantially triangular shape. 39. A sailing boat according to claim 19, wherein the dimensions and locations of said mast, main spar and sail are such that, when deployed, the sail cannot touch the mast. 40. A sailing boat according to claim 19, wherein said mast extends outwardly of the hull for a distance equal to at least 20 percent of the extreme beam of the hull. 41. A sailing boat according to claim 19, wherein said mast is in the form of a closed loop.

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Sailing boats

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