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EP0316460B1 - Système de voile avec surface de voile réglable - Google Patents

Système de voile avec surface de voile réglable Download PDF

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Publication number
EP0316460B1
EP0316460B1 EP87116805A EP87116805A EP0316460B1 EP 0316460 B1 EP0316460 B1 EP 0316460B1 EP 87116805 A EP87116805 A EP 87116805A EP 87116805 A EP87116805 A EP 87116805A EP 0316460 B1 EP0316460 B1 EP 0316460B1
Authority
EP
European Patent Office
Prior art keywords
sail
section
mast
sail section
batten
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87116805A
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German (de)
English (en)
Other versions
EP0316460A1 (fr
Inventor
Randall H. Reynolds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Priority to US06/878,668 priority Critical patent/US4706591A/en
Application filed by Individual filed Critical Individual
Priority to DE8787116805T priority patent/DE3784510T2/de
Priority to EP87116805A priority patent/EP0316460B1/fr
Publication of EP0316460A1 publication Critical patent/EP0316460A1/fr
Application granted granted Critical
Publication of EP0316460B1 publication Critical patent/EP0316460B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/40—Arrangements for improving or maintaining the aerodynamic profile of sails, e.g. cambers, battens or foil profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
    • B63H8/50—Accessories, e.g. repair kits or kite launching aids
    • B63H8/52—Handheld cleats, cams or hooks for tensioning the downhaul or outhaul of a windsurfing sail

Definitions

  • the present invention relates to a sail system for a wind-driven craft having a mast and a boom, said sail system comprising: an upper sail section having a luff securable adjacent the mast, a leech extended distally from the mast, a foot at the bottom thereof extending between said luff and said leech, a tack at the juncture between said luff and said foot and a clew at the juncture between said leech and said foot; a lower sail section having a luff securable adjacent the mast, a leech extended distally from the mast, a foot at the bottom thereof extending between the luff and the leech, a tack at the juncture between the luff and the foot, and a clew at the juncture between the leech and the foot; readily removable attachment means to continuously seam the upper edge of said lower sail section to the lower edge of said upper sail section from the tack to the clew; means for adjusting the effective height of the mast between
  • a sailboard comprises a buoyant elongated platform or board having a tapered “bow”, on which a mast carrying a sail is mounted.
  • the mast is mounted to the board by means of a universal joint, allowing the mast to be turned and twisted, by means of a laterally-extending boom, to adjust the attitude of the sail with respect to the wind, thereby controlling the speed and course of the board.
  • the sail on sailboards usually has a fixed, non-adjustable area.
  • the typical sail is an attempt to optimize performance in average wind conditions, and is, therefore, not suited for optimal performance in light or heavy wind conditions.
  • WO 85/02595 describes a sail and mast assembly in which sail area is adjusted by means of at least one removable section or panel attached along the bottom edge, or "foot,” of the sail, and in which the height of the mast is adjustable as a sail panel is removed or added.
  • Said known sail comprises a main sail section, the foot of which includes fastening means which allows the removable attachment of a transverse section or panel.
  • the panel increases the length of the sail's luff and leech, thereby also increasing the overall area of the sail.
  • Two or more such panels can be used, if desired, in which case the panels will include attachment means on their upper and lower edges.
  • the attachment means can, of course, be omitted from the lower edge of the lowest panel.
  • the mast is adjustable in height, as mentioned above, to accommodate changes in the length of sail luff, as panels are added or removed.
  • mast height is adjustable by means of telescoping upper and lower mast sections or as one alternative, the mast can include one or more removable mast segments serially attached to the top or bottom of the mast, with each mast segment having a length approximately equal to the length of luff added by a corresponding sail panel.
  • the mast height can be adjusted, as sail panels are added or removed, to maintain the same proportion of mast height to sail luff.
  • the sail sections are joined along their adjacent edges by means of a zipper or a series of snap fasteners or the like.
  • the panels can be configured so that each panel can provide an additional amount of seam shape to the sail. In this manner, the fullness of the sail can be increased and decreased as panels are added and removed, respectively, thereby enhancing the sail's adjustability to varying wind conditions.
  • the sail area is easily and quickly adjusted to suit wind conditions varying from light air to heavy air.
  • the sail system of WO 85/02595 allows the same board to be used by both a novice and an experienced enthusiast without completely changing the entire sail.
  • the changes in sail area are accompanied by appropriate changes in mast height, hereby maintaining the proper relationship between mast height and sail luff, and avoiding the problem, mentioned above, of excess weight aloft in heavy air.
  • the draft of the sail can be maintained at its optimum position regardless of the sail area selected, since all sail area is added or removed from the foot, rather than the leech.
  • a sail system which is characterized by first batten pocket means formed on the upper sail section, second batten pocket means formed on the lower sail section in alignment with said first batten pocket means, first batten means insertable in said first batten pocket means, second batten means, the lower end of said first batten means being removably engageable with the upper end of said second batten means, and retainer means on said sail sections to removably secure the batten means within their respective batten pockets.
  • a sail system which is characterized by a first batten pocket formed on the lower portion of the upper sail section, a second batten pocket formed on the lower sail section, a single batten that is selectively removably inserted within either said first or second batten pocket and retainer means on said sail sections to removably secure said batten within either said first or second batten pocket.
  • the sail system includes the features of the dependent claims.
  • the sail system of the present invention is economical to manufacture, easy to use, and readily adaptable for use with both sail boards and small sail boats, as well as with other types of wind-driven craft.
  • FIGS 7 to 14 illustrate the present invention and show preferred embodiments of the invention.
  • a sailboard 10 is shown with a known sail and mast assembly.
  • the sailboard in most respects is of typical design, having a platform or board 12 on which a person stands, a mast 14 mounted on the board 12 by means of a universal joint 16, and a fore-and-aft rigged sail 18 carried on the mast 14.
  • a boom 20 extends horizontally rearwardly from the mast 14, and is used to rotate the mast on the universal joint 16 to change the attitude of the sail 18 with respect to the wind, thereby to navigate.
  • the sail has a leading edge or "luff” 22 part of which forms a sleeve 24 into which is inserted the upper part of the mast. Below the sleeve 24, the luff 22 is attached to the mast by one or more straps 26.
  • the sail 18 has a bottom edge or "foot” 28 extending from the luff 22 to the sail's trailing edge or "leech” 30, which extends distally from the mast. At the juncture between the foot and the luff, or “tack”, is a tack patch 32, and at the juncture between the foot and leech, or "clew”, is a clew patch 34.
  • a downhaul line 36 is connected between the tack patch 32 and the universal joint 16, in a manner to be described below.
  • An outhaul line 38 connects the boom 20 to the clew patch 34. The outhaul line 38 thus connects the sail 18 to the boom 20 so that navigation can be accomplished, as mentioned above.
  • the sail area is adjustable by the addition and removal of sections or panels along the sail's foot, and that the height of the mast is adjustable in accordance with the changes in the length of the luff resulting from the addition and removal of the sail panels.
  • the sail 18 is divided into a main sail section 40 and two panels 42 and 44 removably attached to the bottom edge of the main section 40. More specifically, the first panel 42 is attachable along its upper edge to the bottom edge, or "foot", of the main section 40, while the second, or lowermost panel 44 is attachable along its upper edge to the lower edge, or "foot", of the first panel 42.
  • Each of the panels 42 and 44 has a luff edge alignable with the luff edge of the main sail section 40. As best shown in Figure 4, the panels 42 and 44 are separately attachable and removable, so that the sail 18 can be rigged with both of the panels, or just one, or none (using the main section 40 alone).
  • the preferred means for removably attaching adjacent sail sections is a zipper 46, two of which are used in the illustrated embodiment.
  • the zipper 46 provide seams along which adjacent sail sections are joined together, with the two sides of each zipper 46 being sewn into either side of each of these seams.
  • fore and aft load straps 48a and 48b, respectively, are provided at the upper corners of each of the removable panels 42 and 44.
  • the load straps 48a and 48b pass through grommets 50 in the tack patch 32 and clew patch 34 of the adjacent sail section, looping around the zipper 46 between the two sections, and are fastened by means such snap fasteners 52 or the like.
  • the zippers 46 extend forward beyond the luff, as shown in Figure 2, so that they can be wrapped around the mast and tucked under the forward load straps 48a, as shown in Figure 3.
  • the free end of the zipper can then be fastened to the side of the sails section by a suitable fastener 54, which may be a snap or a VELCRO® fastener.
  • the mast has a "telescoping" structure to allow adjustment of its height.
  • the mast comprises a lower tubular section 56 attached to the universal joint 16, and an upper tubular section 58 which slidably fits into the open upper end of the lower section 56.
  • the upper section 58 is provided with a plurality of holes 60 which are each registerable with a hole (not shown) near the top of the lower mast section 56.
  • a pin 64 is insertable into the registered holes to fix the mast at the desired height.
  • the number of holes 60 may advantageously correspond to the number of sail sections, with the spacing between the holes 60 corresponding, at least approximately, to the length of luff or each of the removable sail sections.
  • the downhaul line 36 is connected between the tack patch 32 and the universal joint 16. This connection provides the proper downward tensioning of the sail 18, and is accomplished (as shown in Figure 5), by pair of hooks 66 insertable into a tack patch grommet 68 and an eyelet 70 on the universal joint 16.
  • the lowermost sail panel 44 can be removed, by means of the zipper 46, and the mast correspondingly shortened by telescoping the upper mast section 58 into the lower mast section 56 until the middle one of the holes 60 is in registration with the hole in the lower mast section, with the pin 64 then being inserted therethrough.
  • the outhaul and downhaul lines are connected to the clew and tack patches, respectively, of the middle sail panel 42.
  • both panels 42 and 44 will be unzipped from the main sail section 40, and the mast 14 will be shortened to its minimum height by sliding the upper mast section 58 into the lower mast section 56 until the uppermost of the holes 60 registers with the hole in the lower mast section and then inserting the pin 64, as described above.
  • the outhaul line and the downhaul line will then be attached to the clew patch and tack patch, respectively, of the main sail section.
  • sail area can be increased by re-attaching the panel 42 alone, or both of the panels 42 and 44, while correspondingly increasing the mast height.
  • the embodiment described above provides optimum sail and mast configuration over a wide range of wind conditions, with ease of adjustability of the sail and mast configuration to accommodate changes in wind conditions. There is no compromise in the handling qualities of the sailboard as a resuit of the adjustability of the sail and mast.
  • Fig. 7 there is shown the sail and mast assembly embodying the present invention mounted on a sailboard 10'.
  • the mast generally designated 14', supports a boom 20'.
  • the mast 14' includes a main section 80 which telescopically removably supports an upper section 82.
  • Upper section 82 includes a stub 83 which is snugly received within a socket 84 formed in the upper end of main mast section 80.
  • the lower end of mast 14' is telescopically connected to a sleeve 85 having vertically spaced apertures that removably receive a locator pin 86. With this arrangement the height of mast 14' may be adjusted from either the top or bottom portion thereof.
  • the mast and boom carry a sail 18' which is divided into a main sail sectin 88 and two panels 90 and 92 removably attach to the bottom edge of the main section 88 by zippers 94 and 96.
  • a plurality of battens 98, 99, 100 are provided for the main sail section 88.
  • a downhaul line 103 secures the lower front portion of sail 18 and its attached panels 90 and 92 to a conventional anchoring member 104 securing to the rear of the mast 14′ below the lower panel 92.
  • the front end of main sail panel 88 is formed with a sleeve 105 for telescopic engagement with mast 14′.
  • the sleeve 105 is open at area 106 to permit the front end of boom 20′ to be attached to the mast in a conventional manner.
  • the lower front portion of the main sail section 88 is provided with a grommet 108.
  • the lower front portion of sail panel 90 is provided with a similar grommet 110, while the lower front portion of the lower sail panel 92 is also provided with a similar grommet 112.
  • a first vertical load strap 114 is secured to the upper removable sail panel 90 and is connected at its upper end to a snap hook 116 shown particularly in FIG. 9.
  • the snap hook 116 is removably insertable within grommet 108 of the main sail panel 88.
  • a similar load strap 118 is secured at its lower end adjacent the front edge of lower removable sail panel 92.
  • Such load strap is provided with a hook 120 similar to the hook 116.
  • Hook 120 is removably engageable with grommet 110 of the upper removable sail panel 90.
  • the pressures applied to the removable panels 90 and 92 are not transmitted through zippers 94 and 96 to thereby prevent damage thereto.
  • the hooks 116 and 120 are readily attachable to and detachable from their respective grommets.
  • horizontal straps 124 and 126 extend from grommets 110 and 112, respectively, to encircle the mast 14 so as to removably attach the lower front portions of the removable sail panels to the mast.
  • batten member 102 consists of an upper section 130 disposed within batten pocket 132 formed in the lower front portion of main sail section 88, an intermediate section 134 carried in a batten pocket 136 formed in the intermediate portion of upper removable sail panel 90 and a lower section 138 removably carried in a lower batten pocket 140 formed in the intermediate portion of lower removable sail panel 92.
  • the adjoining batten sections are telescopically joined by like pin and socket connections 144.
  • the rear end of batten 138 is removably secured within its batten pocket 140 by a retainer loop 150 having its front portion secured to the rear edge of removable lower panel 92 in a conventional manner.
  • FIG. 13 there is shown another form of sail and mast assembly embodying the present invention.
  • a single batten 160 is selectively insertable within a lower batten pocket 162 formed in lower removable sail panel 92, an intermediate batten pocket 164 formed in upper removable sail panel 90 or an upper batten pocket 166 formed in the lower portion of main sail section 88.
  • a retainer loop 150 of the type described hereinabove is provided at the rear portion of each batten pocket for releaseably securing a batten within one of the pockets.
  • the remaining elements of the sail and mast assembly of FIG. 13 are similar to those shown in FIGS. 7 through 12, it being understood that the embodiment of FIG. 13 utilizes only the single batten 160, rather than the segmented batten 102 of FIG. 8.
  • batten 160 will be disposed within batten pocket 162 until such time as the lower sail section 92 is removed. The batten 160 will then be withdrawn from batten pocket 162 and inserted in batten pocket 164. When sail panel 90 is removed, the batten 160 will be withdrawn from batten pocket 164 and inserted within batten pocket 166.
  • FIG. 14 there is shown a form of sail and mast assembly similar to that shown in FIGS. 7-12 except that two three-piece battens, generally designated 170 and 172, are utilized in place of the single segmented batten 102.
  • the parts of the sail and mast assembly of FIG. 14 correspond to those disclosed in FIGS. 7 and 8.
  • the assembly is arranged in the maximum sail area position.
  • the height of the mast 14' is adjusted downwardly either by removing the stub 83 or by lowering the mast relative to its supporting sleeve 85.
  • Lower sail panel 92 is then unzipped from the upper removable sail panel 90. If wind velocity increases still further, the mast 14' will be again shortened in height and upper removal sail panel 90 will be unzipped from the bottom of the main sail section 88.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)
  • Wind Motors (AREA)

Claims (5)

  1. Système de voile pour une embarcation mue par le vent comportant un mât (14) et une bôme (20'), ledit système de voile comprenant :
       une section de voile supérieure (88) comportant un lof fixable de façon contigüe, un mât (14'), une chute arrière étendue de façon distale par rapport au mât (14'), un pied à sa partie inférieure s'étendant entre ledit lof et ladite chute, un point d'amure à la jonction entre ledit lof et ledit pied et un point d'écoute à la jonction entre ladite chute et ledit pied ;
       une section de voile inférieure (90, 92) comportant un lof fixable de façon contigüe au mât (14'), une chute arrière étendue de façon distale relativement au mât (14'), un pied à sa partie inférieure s'étendant contre le lof et la chute, un point d'amure à la jonction entre le lof et le pied, et un point d'écoute à la jonction entre la chute et le pied ;
       des moyens de fixation facilement détachables (94, 96) pour assembler de façon continue la bordure supérieure de ladite section de voile inférieure (90, 92) à la bordure inférieure de ladite section de voile supérieure (88), du point d'amure au point d'écoute ;
       des moyens (82, 83, 84, 85, 86) pour ajuster la hauteur efficace du mât (14') entre une première hauteur d'extension quand la section de voile inférieure (90, 92) est fixée à la section de voile supérieure (88) et une seconde hauteur quand la section de voile inférieure (90, 92) est détachée de la section de voile supérieure (88), ladite seconde hauteur étant inférieure à ladite première hauteur d'une quantité approximativement égale à la longueur de la bordure du lof de ladite section de voile inférieure (90, 92);
    l'extrémité libre de la bôme (20') étant fixée au point d'écoute de la section de voile inférieure (90, 92) quand celle-ci (90, 92) est fixée à la section de voile supérieure (88) et l'extrémité libre de la bôme (20') étant fixée au point d'écoute de la section de voile supérieure (88)quand la section de voile inférieure (90, 92) est détachée de la section de voile supérieure (88), et le point d'amure de la section de voile inférieure (90, 92) étant également halée-bas à côté de la partie inférieure du mât (14') quand la section de voile inférieure (90, 92) est fixée à la section de voile supérieure (88) et le point d'amure de la section de voile supérieure (88) étant halée-bas à la partie inférieure du mât (14') quand la section de voile inférieure (90, 92) est détachée de la section de voile supérieure (88),
    caractérisé par
       des premiers moyens de gaine d'espar (132) formés par la section de voile supérieure (88) ;
       des seconds moyens de gaine d'espar (136) formés sur la section de voile inférieure (90, 92) en alignement avec lesdits premiers moyens de gaine d'espar (132) ;
       des premiers moyens d'espar (130) insérables dans lesdits premiers moyens de gaine d'espar (132);
       des seconds moyens d'espar (134), l'extrémité inférieure desdits premiers moyens d'espar (130) pouvant s'engager de façon amovible avec l'extrémité supérieure desdits seconds moyens d'espar (134) ; et
       des moyens de retenue (150) sur lesdites sections de voile pour fixer de façon amovible les moyens d'espar (102, 130) 134, 138, 170, 172) à l'intérieur de leurs gaines d'espar respectives (132, 136, 140).
  2. Système de voile pour une embarcation mue par le vent comportant un mât (14') et une bôme (20'), ledit système de voile comprenant :
       une section de voile supérieure (88) comportant un lof qui peut être fixé de façon attenante au mât (14'), une chute arrière étendue de façon distale par rapport au mât (14'), un pied à sa partie inférieure s'étendant dudit lof à ladite chute, un point d'amure à la jonction entre ledit lof et ledit pied et un point d'écoute à la jonction entre ladite chute et ledit pied ;
       une section de voile inférieure (90, 92) comportant un lof qui peut être fixé de façon attenante au mât (14'), une chute arrière étendue de façon distale relativement au mât (14'), un pied à sa bordure inférieure s'étendant entre le lof et la chute, un point d'amure à la jonction entre le lof et la pied, et un point d'écoute à la jonction entre la chute et le pied ;
       des moyens de fixation facilement détachables (94, 96) pour assembler de façon continue la bordure supérieure de ladite section de voile inférieure (90, 92) à la bordure inférieure de la section de voile supérieure (88) du point d'amure au point d'écoute ;
       des moyens (82, 83, 84, 85, 86) pour ajuster la hauteur efficace du mât (14') entre une première hauteur d'extension quand la section de voile inférieure (90,92) est fixée à la section de voile supérieure (88) et une seconde hauteur quand la section de voile inférieure (90,92) est détachée de la section de voile supérieure (88), ladite seconde hauteur étant inférieure à ladite première hauteur d'une quantité approximativement égale à la longueur de la bordure de lof de ladite section de voile inférieure (90, 92) ;
       l'extrémité libre de la bôme (20') étant fixée au point d'écoute de la section de voile inférieure (90, 92) quand la section de voile inférieure (90, 92) est fixée à la section de voile supérieure (88) et l'extrémité libre de la bôme (20') étant fixée au point d'écoute de la section de voile supérieure (88) quand la section de voile inférieure (90, 92) est détachée de la section de voile supérieure (88), et également avec le point d'amure de la section de voile inférieure (90, 92) étant halé-bas à côté de la partie inférieure du mât (14') quand la section de voile inférieure (90, 92) est fixée à la section de voile supérieure (88) et le point d'amure de la section de voile supérieure (88) étant halé-bas à la partie inférieure du mât (14') quand la section de voile inférieure (90, 92) est détachée de la section de voile supérieure (88),
    caractérisé par
       une première gaine d'espar (166) formée sur la partie inférieure de la section de voile supérieure (88) ;
       une seconde gaine d'espar (162, 164) formée sur la section de voile inférieure (90,92) ;
       un espar unique (160) qui est sélectivement inséré de façon amovible à l'intérieur soit de la première gaine d'espar (166) soit de la seconde (162, 164) ; et
       des moyens de retenue (150) sur lesdites sections de voile pour fixer de façon amovible ledit espar (160) à l'intérieur soit de la première gaine d'espar (166) soit de la seconde (162, 164) .
  3. Système de voile selon la revendication 1 ou 2, caractérisé en ce que
       ledit moyen de fixation est une fermeture éclair (46, 94, 96).
  4. Système selon la revendication 1 ou 2, caractérisé en ce que
       les bordures inférieures et supérieures des sections de voile (88, 90, 92) sont prévues avec différentes courbures par quoi l'assemblage desdites bordures fournit une quantité présélectionnée de courbure de voile aux sections de voile jointes ensemble (88, 90, 92).
  5. Système de voile selon la revendication 1, 2 ou 3 ,
    caractérisé en ce que
       les extrémités frontales inférieures des sections de voile supérieure (88) et inférieure (90, 92) sont toutes les deux prévues avec une bague en corde (108, 110, 112), la section inférieure (90, 92) est formée avec une patte de renforcement verticale (114, 118) fixée à son extrémité supérieure à un crochet (116, 120) qui est engageable de façon amovible avec la bague en corde (108, 110) de la section de voile supérieure (88,90) et une attache horizontale (124, 126) s'étend à partir de chacune desdites bagues en corde (110, 112) autour du mât (14').
EP87116805A 1983-12-13 1987-11-13 Système de voile avec surface de voile réglable Expired - Lifetime EP0316460B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US06/878,668 US4706591A (en) 1983-12-13 1986-06-26 Sail system with adjustable sail area
DE8787116805T DE3784510T2 (de) 1987-11-13 1987-11-13 Segelanordnung mit verstellbarer segelflaeche.
EP87116805A EP0316460B1 (fr) 1987-11-13 1987-11-13 Système de voile avec surface de voile réglable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87116805A EP0316460B1 (fr) 1987-11-13 1987-11-13 Système de voile avec surface de voile réglable

Publications (2)

Publication Number Publication Date
EP0316460A1 EP0316460A1 (fr) 1989-05-24
EP0316460B1 true EP0316460B1 (fr) 1993-03-03

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EP87116805A Expired - Lifetime EP0316460B1 (fr) 1983-12-13 1987-11-13 Système de voile avec surface de voile réglable

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DE (1) DE3784510T2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009017432U1 (de) * 2009-12-23 2011-05-05 Enzmann, Klaus J. Wasserfahrzeug
DE102016115652B4 (de) * 2016-08-23 2018-05-09 Boards & More Gmbh Aufblasbares Segelrigg
CN115320817B (zh) * 2022-09-02 2024-06-18 北京蓝色雪山体育设备有限公司 一种三角帆尾的冲浪帆面

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US3974791A (en) * 1975-05-06 1976-08-17 Haarstick Sailmakers Chesapeake, Inc. Sails and method of manufacture
NL7709095A (nl) * 1977-08-17 1979-02-20 Kees Radius Zeiltuig voor een vaar- of voertuig.
US4612868A (en) * 1983-12-13 1986-09-23 Reynolds Randall H Sail system with adjustable sail area
EP0111987A3 (fr) * 1983-12-22 1984-12-27 J.M. Jongkind Agrandissement d'une voile principale d'un voilier en attachant des éléments détachables

Also Published As

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DE3784510D1 (de) 1993-04-08
EP0316460A1 (fr) 1989-05-24
DE3784510T2 (de) 1993-07-08

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