WO2001007315A1 - Board for traction by a sailwing or a kite - Google Patents

Board for traction by a sailwing or a kite Download PDF

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Publication number
WO2001007315A1
WO2001007315A1 PCT/FR2000/002081 FR0002081W WO0107315A1 WO 2001007315 A1 WO2001007315 A1 WO 2001007315A1 FR 0002081 W FR0002081 W FR 0002081W WO 0107315 A1 WO0107315 A1 WO 0107315A1
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WO
WIPO (PCT)
Prior art keywords
board
windward
leeward
axis
fins
Prior art date
Application number
PCT/FR2000/002081
Other languages
French (fr)
Inventor
Marco Copello
Original Assignee
Marco Copello
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marco Copello filed Critical Marco Copello
Priority to EP00958566A priority Critical patent/EP1159189A1/en
Publication of WO2001007315A1 publication Critical patent/WO2001007315A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/50—Boards characterised by their constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B32/00—Water sports boards; Accessories therefor
    • B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards

Definitions

  • planks which are very airy and do not oblige the user to change the feet of position during changes of direction, is on the other hand very delicate to handle because of the very sharp sails on both sides and is moreover reserved for a high technical level because that it is only effective in strong wind conditions.
  • the boards In both cases the boards have symmetrical edges and curvatures with respect to the longitudinal axis.
  • the present invention makes it possible to remedy the disadvantages mentioned above; taking into account the particularities of larpr ⁇ pulsi ⁇ n-by a flying wing, this new board optimizes the-yield at all ⁇ Hures thanks to ⁇ new solutions.
  • the board is ⁇ ymetric ⁇ along the transverse axis, or axernineur. It can therefore move forward to the right or towards
  • the outer lines are also different on both sides of the longitudinal axis as shown in Fig.1.
  • the “windward” side has tighter lines than the “leeward” side.
  • the side “in the wind” in fact, essentially used to direct the board to the wind during upwind ascents, has very tight lines, with very little rounding in the center and more or less square ends.
  • the side “downwind” is on the contrary well rounded, with a marked central curvature and well tucked ends in order to facilitate the changes of direction and the handling in general.
  • the two halves of the hull on each side of the longitudinal axis are also different; the “windward” side is more taut, its section is flat or concave with possibly nozzles towards the outside edge, allowing better channeling of the flows and favoring the heading.
  • the "leeward” side is more raised, convex towards the ends with a flat central section, concave or with nozzles, depending on the degree of directional stability sought, Figure 2 illustrates this principle.
  • the daggerboards necessary for an effective windward ascent, can be placed in different configurations, but always with a centerboard at each end of the board and one or more daggerboards placed on the "windward" side.
  • Figure 1 shows in front view the hull of the board.
  • the “leeward” side (2) is characterized by a curvature markedly more accentuated in the center and by rounded ends.
  • the center line (3) defines the line for changing the curvature of the hull section and is not necessarily located in the middle of the board.
  • Sections A-A 'and B-B' show the two very different half-hulls: a concave “windward” part (6) with a nozzle on the edge (8) and a flat or convex “leeward” part (5).
  • Section B-B ' also shows the difference between the edge or “rail” “in the wind” (4) which is low and acute and the edge “in the wind” which is high, square or rounded on its central part (7).
  • Figure 2 shows the board in side view, with reference to this drawing, we can distinguish the curvature of the top of the board (9) or "bridge” and the center line (3).
  • Figure 3 shows the basic layout of the fins or fins; a first pair is positioned on the center line, at each end of the board (10), the other pair, closer to the middle of the board, is located near the “windward” edge of the latter (11).
  • Figure 4 shows a side view of this arrangement where we distinguish the pair of middle fins (10) and the side pair (11).

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)

Abstract

The invention concerns a board designed for traction by a sailwing or a kite, enabling to optimise the manoeuvrability and capacity of sailing upwind. The shape of said novel board is characterised by a transverse symmetrical axis and by a dissymetry along the longitudinal axis. In particular on said board, the windward curvature of the board (1) differs from the leeward edge (2), the windward half fairing section (8) is different from the leeward one (5); similarly the windward edges or sailtracks (4) and the leeward ones (7) are different and each is specially designed for a particular function. The daggerboards or fins are arranged on either side of the board and likewise dissymetrically.

Description

PLANCHE TRACTEE PAR UNE AILE VOLANTE OU UN CERF-VOLANTBOARD DRAWN BY A FLYING WING OR A KITE
La présente urverrtiOircouceme τιcΛiveaιrτype-de-pianche xiestinée-à être tractéeThis urverrtiOircouceme τιcΛiveaιrτype-de-pianche xiestinée-à to be towed
et des
Figure imgf000002_0001
l i dand
Figure imgf000002_0001
lid
Cette-solution tecrmique-pénatise lourdement l'efficacité de la remontée au vent à cause du profil des rarls^t, de-phis, obtigeiepratiquant à , changer la positiorrdes pieds sur a planche lors des^ hangeπientîrde^direction. L'autre type de planches existant e t courammentappelé « akeboaτd » et présente iaprarticular té d'être^ymétrique-parrapport à l'axe transversal. Ce type de-planches τemonte beaucouρτnieux airventetn' oblige pas leprratiquant à changer les pieds de position lors des changements de directionττnais est en revanche très délicat à maniera cause desτails très aiguisés sur les deux cotés et est en plus réservé à une pratique de hautrtiveau technique parce qu'il n'est efficace pie dans des conditions de vent fort.This technical solution penatizes heavily the efficiency of the ascent to the wind because of the profile of the rarls ^ t, de-phis, obtigeiepratisant to, change the positiorrdes feet on a board during the ^ hangeπientîrde ^ direction. The other type of plank existing and commonly called "akeboaτd" and presents iaprarticular té to be ^ ymetric-compared to the transverse axis. This type of planks, which are very airy and do not oblige the user to change the feet of position during changes of direction, is on the other hand very delicate to handle because of the very sharp sails on both sides and is moreover reserved for a high technical level because that it is only effective in strong wind conditions.
Dans les deux cas les planches ont des bords et des courbures symétriques par rapport à l'axe longitudinal.In both cases the boards have symmetrical edges and curvatures with respect to the longitudinal axis.
Aucun type de planches existant n'a
Figure imgf000002_0002
ce genre de-pratique et ne répond aux exigences de sécurité et de polyvalence nécessaires pour élargir la base de pratique de ce sport dans des conditions de sécurité acceptables.No type of existing boards has
Figure imgf000002_0002
this kind of practice and does not meet the safety and versatility requirements necessary to broaden the base for practicing this sport under acceptable safety conditions.
La présente inventiorrpermet de remédier aux mconvéments cités plus haut ; en tenant compte desparticularités de larprσpulsiσn-par une aiie -volante, cette nouvelle planche optimise le-rendement à toutes les^Hures grâce a^des solutions inédites.The present invention makes it possible to remedy the disadvantages mentioned above; taking into account the particularities of larprσpulsiσn-by a flying wing, this new board optimizes the-yield at all ^ Hures thanks to ^ new solutions.
Afin d'éviter au pratiquant d'avoir à changer laposition des pieds lors des changements de direction, la-planche est^ymétrique^elon l' axe-transversal, ou axernineur. Elle peut doncrndifféremment avancer vers la -droite ou versIn order to avoid the practitioner having to change the position of the feet during changes of direction, the board is ^ ymetric ^ along the transverse axis, or axernineur. It can therefore move forward to the right or towards
Figure imgf000002_0003
Figure imgf000002_0003
(comme l'on peut observer-surlafig. l) mi spécialise leur fonction. Le rail se situant du coté du dos du pratiquant ou « auvent », est fin, dure iranchant afin défavoriser la remontée arrvent. Son profil est-symétrique des deux cotés en partant-du milieu vers lesextrerrrités.(as we can observe-surlafig. l) mi specializes their function. The rail located on the side of the back of the practitioner or "awning", is thin, hard cutting in order to disadvantage the ascent upwind. Its profile is symmetrical on both sides starting from the middle towards the extremities.
Lerail se situant du coté-deiaface du pratiquant ou < sous le^veπt » est plus haut, avec de l'épaisseuraueentre et s' affinant "vers les extrémités. Sa fonction étant de favoriser larrramarήlité-et le-passage des vagues et du clapôt, ses extrémités sont re^é s^t-SOτrτjordτrrferietrr-peut être rentré ou arrondi. Les lignes extérieures sont également différentes des deux cotés de l'axe longitudinal comme cela est montré sur la Fig.1.The rail located on the side of the practitioner's side or <under the ^ veπt "is higher, with a thickness between the center and refining" towards the ends. Its function being to promote the narrowness and the passage of the waves and the flap , its ends are re ^ re s ^ t-SOτrτjordτrrferietrr-can be tucked in or rounded. The outer lines are also different on both sides of the longitudinal axis as shown in Fig.1.
Le coté « au vent » a des lignes plus tendue que le coté « sous le vent » . Le coté « au vent » en effet, servant essentiellement à diriger la planche au vent lors des remontées au près, a des lignes très tendues, avec très peu d'arrondi au centre et des extrémités plus ou moins carrées.The “windward” side has tighter lines than the “leeward” side. The side "in the wind" in fact, essentially used to direct the board to the wind during upwind ascents, has very tight lines, with very little rounding in the center and more or less square ends.
Le coté « sous le vent » est au contraire bien arrondi, avec une courbure centrale marquée et des extrémités bien rentrées afin de faciliter les changements de direction et la maniabilité en général. Les deux moitiés de la carène se trouvant de chaque coté de l'axe longitudinal sont également différentes ; le coté « au vent » est plus tendu, sa section est plate ou concave avec éventuellement des tuyères vers le bord extérieur, permettant de mieux canaliser les écoulements et favorisant le cap. Le coté « sous le vent » est plus relevé, convexe vers les extrémités avec une section centrale plate, concave ou assortie de tuyères, selon le dégrée de stabilité directionnelle recherché, la figure 2 illustre ce principe.The side "downwind" is on the contrary well rounded, with a marked central curvature and well tucked ends in order to facilitate the changes of direction and the handling in general. The two halves of the hull on each side of the longitudinal axis are also different; the “windward” side is more taut, its section is flat or concave with possibly nozzles towards the outside edge, allowing better channeling of the flows and favoring the heading. The "leeward" side is more raised, convex towards the ends with a flat central section, concave or with nozzles, depending on the degree of directional stability sought, Figure 2 illustrates this principle.
Les dérives, nécessaires à une remontée au vent efficace, peuvent être placés selon des configurations différentes, mais toujours avec une dérive centrée à chaque extrémité de la planche et une ou plusieures dérives placées du coté « au vent ».The daggerboards, necessary for an effective windward ascent, can be placed in different configurations, but always with a centerboard at each end of the board and one or more daggerboards placed on the "windward" side.
Les dessins annexés illustrent l'invention :The accompanying drawings illustrate the invention:
La figure 1 représente en vue frontale la carène de la planche. En référence à ce dessin, on distingue un coté « au vent » (1) tendu, aux extrémités marquées par un contour presque carré. Le coté « sous le vent » (2) se caractérise par une courbure nettement plus accentuée au centre et par des extrémités arrondies.Figure 1 shows in front view the hull of the board. With reference to this drawing, there is a "windward" side (1) stretched, with the ends marked by an almost square outline. The “leeward” side (2) is characterized by a curvature markedly more accentuated in the center and by rounded ends.
La ligne médiane (3) définit la ligne de changement de courbure de la section de la carène et ne se trouve pas nécessairement au milieu de la planche.The center line (3) defines the line for changing the curvature of the hull section and is not necessarily located in the middle of the board.
Les sections A-A' et B-B' montrent les deux demi carènes très différenciées : une partie « au vent » concave (6) avec une tuyère sur le bord (8) et une partie « sous le vent» plate ou convexe (5).Sections A-A 'and B-B' show the two very different half-hulls: a concave “windward” part (6) with a nozzle on the edge (8) and a flat or convex “leeward” part (5).
La section B-B' montre également la différence entre le bord ou « rail » « au vent » (4) qui est bas et aigu et le bord « sous le vent » qui est haut, carré ou arrondi sur sa partie centrale (7). La figure 2 représente la planche en vue latérale, en référence à ce dessin, l'on peut distinguer la courbure du dessus de la planche (9) ou « pont » et la ligne médiane (3).Section B-B 'also shows the difference between the edge or “rail” “in the wind” (4) which is low and acute and the edge “in the wind” which is high, square or rounded on its central part (7). Figure 2 shows the board in side view, with reference to this drawing, we can distinguish the curvature of the top of the board (9) or "bridge" and the center line (3).
Par rapport à la courbure de cette dernière, on identifie la courbure du coté « sous le vent » (2), plus accentuée et celle « au vent » (1) nettement plus tendue.In relation to the curvature of the latter, we identify the curvature on the side "Under the wind" (2), more accentuated and that "in the wind" (1) clearly more tense.
La figure 3 montre la disposition de base des dérives ou ailerons ; une première paire est positionnée sur la ligne médiane, à chaque extrémité de la planche (10), l'autre paire , plus rapprochée du milieu de la planche, est située près du bord « au vent » de cette dernière (11).Figure 3 shows the basic layout of the fins or fins; a first pair is positioned on the center line, at each end of the board (10), the other pair, closer to the middle of the board, is located near the “windward” edge of the latter (11).
La figure 4 montre une vue latérale de cette disposition où l'on distingue la paire de dérives médianes (10) et la paire latérale (11). Figure 4 shows a side view of this arrangement where we distinguish the pair of middle fins (10) and the side pair (11).

Claims

REVENDICATIONS
1) Planche destinée à être tractée par une aile volante ou un cerf- volant, caractérisée par une symétrie du contour selon l'axe transversal ou axe mineur associée à une dissymétrie des lignes extérieures (1) et (2) selon l'axe médian ou longitudinal (3). 2) Différentiation des bords de la planche selon la revendication 1 , caractérisée par un bord au vent (4) plus dur et plus aigu que le bord sous le vent (7), celui-ci pouvant avoir une hauteur centrale variable et s 'affinant vers les extrémités.1) Board intended to be towed by a flying wing or a kite, characterized by a symmetry of the contour along the transverse axis or minor axis associated with an asymmetry of the outer lines (1) and (2) along the median axis or longitudinal (3). 2) Differentiation of the edges of the board according to claim 1, characterized by a windward edge (4) harder and sharper than the leeward edge (7), the latter possibly having a variable central height and becoming thinner towards the ends.
3) Différentiation de la carène de la planche selon la revendication 1 caractérisée par des sections symétriques de chaque coté de l'axe transversal et dissymétriques de chaque coté de l'axe longitudinal (5) et (6).3) Differentiation of the hull of the board according to claim 1 characterized by symmetrical sections on each side of the transverse axis and asymmetrical on each side of the longitudinal axis (5) and (6).
4) Différentiation de la courbure générale de la section de la planche caractérisée par une symétrie selon l'axe longitudinal et par des courbures différentes du coté au vent et du coté sous le vent. En particulier le coté au vent (1) est plus tendu que le coté sous le vent (2) .4) Differentiation of the general curvature of the section of the board characterized by symmetry along the longitudinal axis and by different curvatures on the windward side and on the leeward side. In particular the side to the wind (1) is tighter than the side to the wind (2).
5) Disposition des dérives sur la planche selon la revendication 1 caractérisée par deux dérives, situées chacune à un bout de l'axe longitudinal (10), plus ou moins décalées par rapport aux extrémités et deux ou plusieurs autres dérives, situées près du bord au vent (11) et plus centrées par rapport à l'axe transversal. 5) Arrangement of the fins on the board according to claim 1 characterized by two fins, each located at one end of the longitudinal axis (10), more or less offset from the ends and two or more other fins, located near the edge windward (11) and more centered with respect to the transverse axis.
PCT/FR2000/002081 1999-07-23 2000-07-20 Board for traction by a sailwing or a kite WO2001007315A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00958566A EP1159189A1 (en) 1999-07-23 2000-07-20 Board for traction by a sailwing or a kite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9909764A FR2796614A1 (en) 1999-07-23 1999-07-23 Sailboard with sail has asymmetrical hull with varying hull section and offset fins
FR99/09764 1999-07-23

Publications (1)

Publication Number Publication Date
WO2001007315A1 true WO2001007315A1 (en) 2001-02-01

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EP (1) EP1159189A1 (en)
FR (1) FR2796614A1 (en)
WO (1) WO2001007315A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8328593B2 (en) * 2004-12-17 2012-12-11 Kirby J Mead Low-drag fin and foil system for surfboards
WO2017183054A1 (en) * 2016-04-21 2017-10-26 Fiastri Tao Paolo Twin-tip kitesurf-board with dual mode usage
WO2022235426A1 (en) * 2021-05-02 2022-11-10 Dombois Designs, Inc. Biomechanically adapted sportsboard

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0217284D0 (en) * 2002-07-25 2002-09-04 Stratton David Kite board

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134992A (en) * 1963-01-03 1964-06-02 Alfred K Tyll Water ski
US3337886A (en) * 1965-08-06 1967-08-29 Ekstrom Adolph Carl Asymmetrical surfboard

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134992A (en) * 1963-01-03 1964-06-02 Alfred K Tyll Water ski
US3337886A (en) * 1965-08-06 1967-08-29 Ekstrom Adolph Carl Asymmetrical surfboard

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ALEX GILLAN, KITESURFER BOARDS, - 22 March 1999 (1999-03-22), XP002153499, [retrieved on 20001121] *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8328593B2 (en) * 2004-12-17 2012-12-11 Kirby J Mead Low-drag fin and foil system for surfboards
US8613636B2 (en) 2004-12-17 2013-12-24 Kirby J Mead Low-drag fin and foil system for surfboards
US8821205B2 (en) 2004-12-17 2014-09-02 Kirby J Mead Low-drag fin and foil system for surfboards
US9957020B2 (en) 2004-12-17 2018-05-01 Kirby J. Mead Low-drag fin and foil system for surfboards
US10894584B2 (en) 2004-12-17 2021-01-19 Kirby J. Mead Low-drag fin and foil system for surfboards
WO2017183054A1 (en) * 2016-04-21 2017-10-26 Fiastri Tao Paolo Twin-tip kitesurf-board with dual mode usage
WO2022235426A1 (en) * 2021-05-02 2022-11-10 Dombois Designs, Inc. Biomechanically adapted sportsboard

Also Published As

Publication number Publication date
EP1159189A1 (en) 2001-12-05
FR2796614A1 (en) 2001-01-26

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