EP0245571A1 - Centerboard or analogous working in a fluid - Google Patents

Centerboard or analogous working in a fluid Download PDF

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Publication number
EP0245571A1
EP0245571A1 EP86420191A EP86420191A EP0245571A1 EP 0245571 A1 EP0245571 A1 EP 0245571A1 EP 86420191 A EP86420191 A EP 86420191A EP 86420191 A EP86420191 A EP 86420191A EP 0245571 A1 EP0245571 A1 EP 0245571A1
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EP
European Patent Office
Prior art keywords
fin
flap
rigid
axis
drift device
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Application number
EP86420191A
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German (de)
French (fr)
Inventor
Eric Serve
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Individual
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Individual
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Publication of EP0245571A1 publication Critical patent/EP0245571A1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B2039/063—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water the foils comprising flexible portions

Definitions

  • the present invention relates to a drift device, intended to be used in a fluid with respect to which it is in relative motion.
  • this device can be mobile in a fluid at rest, or on the contrary be immobile in a fluid flow.
  • the fluid can be a liquid or a gas.
  • the device according to the invention can be placed under a hull, which floats on water. It can be, for example a fin, a keel, a rudder, a fin, or a rudder, fitted to the hull of a boat, a canoe, a windsurfing board, or the like. for example, it may be the fin fitted to a sail board intended for jumping, and comprising a single fin.
  • the present invention aims to avoid these drawbacks, by providing a drift device capable of automatically adapting to the conditions of use to obtain an optimum result.
  • a drift device comprises a rigid profiled fin, oriented in a plane substantially perpendicular to the plane direction defined by the waterline of the hull, and it is characterized in that part of the surface of the rigid fin is constituted by an elastically deformable flap around at least one theoretical axis substantially perpendicular to the water plane.
  • the flap is formed by a die blade material - formable, whose front is secured to the rigid fin.
  • the flap consists of a blade of rigid material, the front of which is connected to the rigid fin by deformable means with automatic elastic return.
  • the front of the flap is articulated on the rear of the rigid fin, by a hinge pin.
  • the elastic return means are constituted by a block of elastically deformable material, welded or glued both on the rear of the fin and on the front of the flap.
  • the elastic return means consist of one or more tension springs, bearing on the wing and on the flap.
  • the elastic return means consist of one or more elastic tensioners made of rubber or the like, bearing on the fin and on the flap.
  • a windsurfing board the hull 1 comprises, in the known manner, a fin fin on which are defined a leading edge and a trailing edge.
  • the fin 2 has in its rear part, corresponding to the trailing edge 3, a cutout 4, in which a flap 5 can move.
  • the latter can be produced according to various construction methods, to allow its deformation in the cutout 4, when it is subjected to a transverse force (that is to say perpendicular to the sheet of paper). On the contrary, when such a transverse force ceases, the flap 5 automatically returns to its rest position, that is to say to that in which it is in the same plane as the rest of the fin 2.
  • the flap 5 is itself made of a rigid material, and it is articulated on two sections of screw axis 6 and 7, which are therefore removable.
  • the front edge 8 of the flap 5 is integral with an elastic cushion 9, to which it is fixed by welding or by gluing
  • the front of this cushion 9 is fitted between two raised rods 10. which equate the rear fin 2 at this location.
  • the pivoting of the flap 5 around the geometric axis 11 that define the sections 6 and 7 ( Figure 3., double arrow 2) is only possible by elastic deformation of the cushion rubber 9.
  • a transverse force such as 13 or 14.
  • the flap 5 automatically returns to the same plane as the fin 2.
  • the geometric axis 11 is substantially perpendicular to the plane direction defined by the waterline of the hull 1.
  • the flap 5 is directly glued or welded to the elastic cushion 15, which is made of rubber or plastic.
  • This cushion is, in turn, welded or glued on the rear of the fin 2.
  • the hinge pin 11 is no longer materialized in this variant by sections of axis 6 and 7;
  • elastic tensioners such as 16 are placed on either side of the trailing edge 17 of the flap 5, stretched between the corresponding parts of the fin 2. As before, the latter has an axis hinge 11, for the front of the flap 5.
  • the flap 5 is connected by deformable elastic blocks 18, at the rear of the fin 2.
  • the flap 5 is articulated on the axis 11 around which it is resiliently recalled by a spiral metal spring 19, or by compression springs 20, which bear on the rear of the fin 2.
  • this device considerably improves the characteristics of navigation and use, in particular for a sailing dinghy, or for a windsurfing board. It can also be used on water ski fins, surfboards, or those of a device sliding on snow.
  • the axis 11 is not necessarily close to the perpendicular to the direction of the seed 22 of the fin 2.
  • the theoretical axis 11 is practically parallel to the leading edge 23 of the fin 2.
  • This variant corresponds for example the drift provided under the sole of a water ski.

Abstract

The invention relates to a rigid rudder fin (2), in particular for a windsurfing board. A flap (5) can move about an axis (11), with elastic return means (9). Application to the improvement of navigational stability, in particular when beating close to the wind. <IMAGE>

Description

La présente invention est relative à un dispositif de dérive , destiné à être utilisé dans un fluide par rapport auquel il est en mouvement relatif . Autrement dit , ce dispositif peut être mobile dans un fluide au repos, ou bien au contraire être immobile dans un écoulement fluide. Le fluide peut être un liquide ou un gaz.The present invention relates to a drift device, intended to be used in a fluid with respect to which it is in relative motion. In other words, this device can be mobile in a fluid at rest, or on the contrary be immobile in a fluid flow. The fluid can be a liquid or a gas.

Suivant une application particulière, quoique non exclusive , le dispositif selon l'invention peut être placé sous une coque , qui flotte sur l'eau . Il peut s'agir, par exemple d'un aileron , d'une quille , d'un safran , d'une une dérive , ou d'un gouvernail , équipant la coque d'un bateau , d'un canot , d'une planche à voile , ou analogue . par exemple , il peut s'agit de l'aileron équipant une plauche à voile prévue pour le saut , et comportant un seul aileron.According to a particular application, although not exclusive, the device according to the invention can be placed under a hull, which floats on water. It can be, for example a fin, a keel, a rudder, a fin, or a rudder, fitted to the hull of a boat, a canoe, a windsurfing board, or the like. for example, it may be the fin fitted to a sail board intended for jumping, and comprising a single fin.

Il est connu d'utiliser un ou plusieurs ailerons de dérive , sous une coque flottante Tel est par exemple le cas des voiliers. dériveurs , ou de planches à voile . L'aileron constitue une dérive , qu'on peut parfois régler , mais qui , une fois réglée , reste rigide , et fixe. Il en résulte un comportement bien connu , qui présente nottam- ment les inconvéniéntss suivants :

  • - lorsque la coque avance à relativement grande vitesse ,il est fréquent que des phénomènes de turbulence et de caviLa- tion apparaissent derrière l'aileron de dérive dont le fonctionnement cesse alors de devenir satisfaisant ;
  • - lorsque l'utilisateur vire de bord , il arrive que , pour certaines orientations , l'aileron constitue un frein nuisant à la manoeuvre ;
  • - lorsque l'utilisateur remonte au près , la présence de gite ou de clapot fait apparaître des efforts souvent exagérés tandis que la stabilité de route devient insuffisante.
It is known to use one or more fin fins, under a floating hull Such is for example the case of sailboats. dinghies, or windsurfers. The fin constitutes a fin, which can sometimes be adjusted, but which, once adjusted, remains rigid and fixed. This results in well-known behavior, which in particular has the following disadvantages:
  • - when the hull is advancing at relatively high speed, it is common for turbulence and cavitation phenomena to appear behind the fin, whose operation then ceases to become satisfactory;
  • - When the user veers aboard, it happens that, for certain orientations, the aileron constitutes a brake which hinders maneuvering;
  • - when the user goes upwind, the presence of a gite or chop shows often exaggerated efforts while the road stability becomes insufficient.

La présente invention a pour but d'éviter ces inconvénients , en réalisant un dispositif de dérive susceptible de s'adapter automatiquement aux conditions d'utilisation pour obtenir un résultat optimum.The present invention aims to avoid these drawbacks, by providing a drift device capable of automatically adapting to the conditions of use to obtain an optimum result.

Un dispositif de dérive selon l'invention comprend un aileron rigide profilé , orienté dans un plan sensiblement perpendiculaire à la direction de plan définie par la ligne de flottaison de la coque , et il est caractérisé en ce qu'une partie de la surface de l'aileron rigide est constituée par un volet déformable élastiquement autour d'au moins un axe théorique sensiblement perpendiculaire au plan de flottaison.A drift device according to the invention comprises a rigid profiled fin, oriented in a plane substantially perpendicular to the plane direction defined by the waterline of the hull, and it is characterized in that part of the surface of the rigid fin is constituted by an elastically deformable flap around at least one theoretical axis substantially perpendicular to the water plane.

Suivant une autre caractéristique de l'invention , le volet est constitué par une lame de matière dé- formable , dont l'avant est solidaire de l'aileron rigide.According to another feature of the invention, the flap is formed by a die blade material - formable, whose front is secured to the rigid fin.

Suivant une autre caractéristique de l'invention , le volet est constitué par une lame de matière rigide dont l'avant est relié à l'aileron rigide par des moyens déformables à rappel élastique automatiques.According to another characteristic of the invention, the flap consists of a blade of rigid material, the front of which is connected to the rigid fin by deformable means with automatic elastic return.

Suiavnt une autre caractéristique de l'invention , l'avant du volet est articulé sur l'arrière de l'aileron rigide , par un axe d'articulation .According to another characteristic of the invention, the front of the flap is articulated on the rear of the rigid fin, by a hinge pin.

Suivant une autre caractéristique de l'invention , les moyens de rappel élastiquersont constitués par un bloc de matière élastiquement déformable , soudé ou collé à la fois sur l'arrière de l'aileron et sur l'avant du volet.According to another characteristic of the invention, the elastic return means are constituted by a block of elastically deformable material, welded or glued both on the rear of the fin and on the front of the flap.

Suivant une autre caractéristique de l' invention , les moyens de rappel élastique sont constitués par un ou plusieurs ressorts de traction ,prenant appui sur 'laileron et sur le volet.According to another characteristic of the invention, the elastic return means consist of one or more tension springs, bearing on the wing and on the flap.

Suivant une autre caractéristique de l' invention , les moyens de rappel élastique sont constitués par un ou plusieurs tendeurs élastiques en caoutchouc ou analogue , prenant appui sur l'aileron et sur le volet.According to another characteristic of the invention, the elastic return means consist of one or more elastic tensioners made of rubber or the like, bearing on the fin and on the flap.

Le dessin annexé , donné à titre d' exemple non limitatif , permettra de mieux comprendre les caractéristiques de l'invention.

  • Figure 1 est un schéma d'ensemble montrant une planche à voile équipée d'une dérive selon l'invention.
  • Figure 2 montre un mode de réalisation possible de la dérive.
  • Figure 3 est une coupe suivant III-III ( figure 2) .
  • Figures 4 à 9 illustrent plusieurs variantes possibles de réalisation.
The appended drawing, given by way of nonlimiting example, will allow a better understanding of the characteristics of the invention.
  • Figure 1 is an overall diagram showing a windsurf board equipped with a fin according to the invention.
  • Figure 2 shows a possible embodiment of the drift.
  • Figure 3 is a section along III-III (Figure 2).
  • Figures 4 to 9 illustrate several possible alternative embodiments.

On a représenté sur la figure 1 , une planche à voile , dont la coque 1 comporte , à la manière connue , un aileron de dérive sur lequel sont définis un bord d'attaque et un bord de fuite .There is shown in Figure 1, a windsurfing board, the hull 1 comprises, in the known manner, a fin fin on which are defined a leading edge and a trailing edge.

Selon l'invention , l'aileron 2 comporte dans sa partie arrière , correspondant au bord de fuite 3 , une découpe 4 , dans laquelle peut se déplacer un volet 5. Ce dernier peut être réalisé suivant des modes de construction divers , pour permettre sa déformation dans la découpe 4 , lorsque'il est soumis à un effort transversal ( c'est-à-dire perpendiculaire à la feuille de papier) . Au contraire, lorssqu'un tel effort transversal cesse , le volet 5 revient automatiquement à sa position de repos , c'es-à-dire à celle où il se trouve dans le même plan que le reste de l'aileron 2.According to the invention, the fin 2 has in its rear part, corresponding to the trailing edge 3, a cutout 4, in which a flap 5 can move. The latter can be produced according to various construction methods, to allow its deformation in the cutout 4, when it is subjected to a transverse force (that is to say perpendicular to the sheet of paper). On the contrary, when such a transverse force ceases, the flap 5 automatically returns to its rest position, that is to say to that in which it is in the same plane as the rest of the fin 2.

Dans la variante illustrée sur les figures 2 et 3 , le volet 5 est lui-même réalisé en une matière rigide , et il est articulé sur deux tronçons d'axe vissés 6 et 7 , qui sont donc démontables . Le bord avant 8 du volet 5 est solidaire d'un coussin élastique 9 , auquel il est fixé par soudage ou par collage L'avant de ce coussin 9 vient s'encastrer entre deux baguettes en relief 10. qui équi- pent l'arrière de l'aileron 2 à cet endroit . Autrement dit , après assemblage ( figures 2 et 3 ) , le pivotement du volet 5 autour de l'axe géométrique 11 que définissent les tronçons 6 et 7 ( figure 3., flèche double 2) n'est possible que par déformation élastique du coussin de caoutchouc 9 . Pendant l'utilisation de la planche à voile , de telles oscillations apparaissent quand 1'.eau environnante soumet le volet 5 à un effort transversal tel que 13 ou 14 . Dès que cet effort transversal cesse , le volet 5 revient automatiquement dans le même plan que l'aileron 2 .In the variant illustrated in Figures 2 and 3, the flap 5 is itself made of a rigid material, and it is articulated on two sections of screw axis 6 and 7, which are therefore removable. The front edge 8 of the flap 5 is integral with an elastic cushion 9, to which it is fixed by welding or by gluing The front of this cushion 9 is fitted between two raised rods 10. which equate the rear fin 2 at this location. In other words, after assembly (Figures 2 and 3), the pivoting of the flap 5 around the geometric axis 11 that define the sections 6 and 7 (Figure 3., double arrow 2) is only possible by elastic deformation of the cushion rubber 9. During the use of windsurfing, such oscillations appear when the surrounding water subjects the flap 5 to a transverse force such as 13 or 14. As soon as this transverse force ceases, the flap 5 automatically returns to the same plane as the fin 2.

Dans l'exemple illustré , l'axe géométrique 11 est sensiblement perpendiculaire à la direction de plan définie par la ligne de flottaison de la coque 1.In the example illustrated, the geometric axis 11 is substantially perpendicular to the plane direction defined by the waterline of the hull 1.

Dans la vari-ante illustrée sur la figure 4 , le volet 5 est directement collé ou soudé sur le coussin élastique 15 , qui est réalisé en caoutchouc ou en matière plastique . Ce coussin est , à son tour , soudé ou collé sur l'arrière de l'aileron 2. L'axe d'articulation 11 n'est plus matérialisé dans cette variante par des tronçons d'axe 6 et 7;In the vari-ante illustrated in Figure 4, the flap 5 is directly glued or welded to the elastic cushion 15, which is made of rubber or plastic. This cushion is, in turn, welded or glued on the rear of the fin 2. The hinge pin 11 is no longer materialized in this variant by sections of axis 6 and 7;

Dans le cas de la figure 5 , des tendeurs élastiques tels que 16 , sont placés de part et d'autre du bord de fuite 17 du volet 5 , tendus entre les parties correspondantes de laileron 2. Comme précédemment , celui- ci comporte un axe d'articulation 11 , pour l'avant du volet 5.In the case of FIG. 5, elastic tensioners such as 16 are placed on either side of the trailing edge 17 of the flap 5, stretched between the corresponding parts of the fin 2. As before, the latter has an axis hinge 11, for the front of the flap 5.

Dans'la variante illustrée sur la figure 6 , le volet 5 est relié par des blocs élastiques déformables 18 , à l'arrière de l'aileron 2 .Dans'la variant illustrated in Figure 6, the flap 5 is connected by deformable elastic blocks 18, at the rear of the fin 2.

Dans la variante illustrée sur la figure_7 , le volet 5 est articulé sur l'axe 11 autour duquel il est rappelé élastiquement par un ressort métallique spiral 19 , ou par des ressorts de compression 20 , qui prennent appui sur l'arrière de l'aileron 2 .In the variant illustrated in Figure_7, the flap 5 is articulated on the axis 11 around which it is resiliently recalled by a spiral metal spring 19, or by compression springs 20, which bear on the rear of the fin 2.

Dans la variante illustrée sur la figure 8 , c'est l'ensemble du volet 21 qui est réalisé en une.matière élastiquement déformable dont l'avant est soudé ou collé sur l'arrière de l'aileron 2 .In the variant illustrated in FIG. 8, it is the whole of the flap 21 which is made of an elastically deformable material, the front of which is welded or glued to the rear of the fin 2.

Dans tous les cas , il suffit de choisir convenablement la raideur élastique des moyens de rappel , pour définir le seuil des efforts transversaux 13 , 14 , au-delà duquel le volet 5 commence à se déformer.In all cases, it suffices to choose the elastic stiffness of the return means properly, to define the threshold of the transverse forces 13, 14, beyond which the flap 5 begins to deform.

On constate , en pratique , que ce dispositif améliore considérablement les caractéristiques de navigation et d'utilisation , notamment pour un voilier dériveur , ou pour une planche à voile . On peut également l'utiliser sur des dérives de ski nautique, de planches de surf, ou sur celles d'un appareil glissant sur la neige.In practice, it is found that this device considerably improves the characteristics of navigation and use, in particular for a sailing dinghy, or for a windsurfing board. It can also be used on water ski fins, surfboards, or those of a device sliding on snow.

Bien entendu, on peut adapter 1' orientation de l'axe théorique 11 à chacune des réalisations pratiques envisagées. Autrement dit, l'axe 11 n'esL pas nécessairement voisin de la perpendiculaire à la direction de la seme lle 22 de l'aileron 2. Par exemple, dans le cas de la figure 2, l'axe théorique 11 est pratiquement parallèle au bord d'attaque 23 de l'aileron 2. Cette variante correspond par exemple à la dérive prévue sous la semelle d'un ski nautique.Of course, one can adapt the orientation of the theoretical axis 11 to each of the practical embodiments envisaged. In other words, the axis 11 is not necessarily close to the perpendicular to the direction of the seed 22 of the fin 2. For example, in the case of FIG. 2, the theoretical axis 11 is practically parallel to the leading edge 23 of the fin 2. This variant corresponds for example the drift provided under the sole of a water ski.

Claims (9)

1 - Dispositif de dérive comprenant un aileron rigide (2), orienté dans un plan sensiblement perpendiculaire à la direction de plan définie par la ligne de flottaison de la coque (1), caractérisé en ce qu'une partie de la surface de l'aileron rigide (2) est'constituée par un volet (5), (21), déformable élastiquement autour d'au moins un axe théorique (11).1 - Drift device comprising a rigid fin (2), oriented in a plane substantially perpendicular to the plane direction defined by the waterline of the hull (1), characterized in that part of the surface of the rigid fin (2) est 'constituted by a flap (5), (21), elastically deformable around at least one theoretical axis (11). 2 - Dispositif de dérive suivant la revendication 1, caractérisé en ce que le volet (21) est constitué par une lame de matière déformable élastiquement, dont l'avant est solidaire de l'aileron rigide (2).2 - Drift device according to claim 1, characterized in that the flap (21) consists of a blade of elastically deformable material, the front of which is integral with the rigid fin (2). 3 - Dispositif de dérive suivant la revendication 1, caractérisé en ce que le volet (5) est constitué par une lame de matière rigide dont l'avant est relié à l'aileron rigide (2) par des moyens déformables à rappel élastique automatique.3 - Drift device according to claim 1, characterized in that the flap (5) consists of a blade of rigid material, the front of which is connected to the rigid fin (2) by deformable means with automatic elastic return. 4 - Dispositif de dérive suivant l'une quelconque des revendications 1 et 3, caractérisé en ce que l'avant du volet (5) est articulé sur l'arrière de l'aileron rigide (2) par un axe d'articulation (11).4 - Daggerboard device according to any one of claims 1 and 3, characterized in that the front of the flap (5) is articulated on the rear of the rigid fin (2) by a hinge pin (11 ). 5 - Dispositif de dérive suivant la revendication 4, caractérise en ce que l'axe théorique (11) est matérialisé par deux tronçons d'axe vissés et démontables (6) et (7).5 - Drift device according to claim 4, characterized in that the theoretical axis (11) is materialized by two sections of axis screwed and removable (6) and (7). 6 - Dispositif de dérive suivant l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de rappel élastique sont constitués par un bloc de matière élastiquement déformable (9), soudé, collé ou encastré à la fois sur l'arrière de l'aileron (2) et sur,llavant du volet (5).6 - Drift device according to any one of the preceding claims, characterized in that the elastic return means consist of a block of elastically deformable material (9), welded, glued or embedded both on the back of the 'fin (2) and on, l the front of the flap (5). 7 - Dispositif de dérive suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de rappel élastique sont constitués par un ou plusieurs ressorts de traction (20) ou spiraux '19) prenant appui sur l'aileron (2) et sur le volet (5).7 - Daggerboard device according to any one of claims 1 to 5, characterized in that the elastic return means consist of one or more tension springs (20) or spirals '19) bearing on the fin (2 ) and on the flap (5). 8 - Dispositif de dérive suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que le:; moyens de rappel élastique sont constitués par un ou plusieurs tendeurs élastiques (16) en caoutchouc ou analogue, prenant appui sur l'aileron (2) et sur le volet (5).8 - Drift device according to any one of claims 1 to 5, characterized in that the :; elastic return means consist of one or more elastic tensioners (16) of rubber or the like, bearing on the fin (2) and on the flap (5). 9-Dispositif de dérive suivant l'une quelconque des revendications précédentes, caractérisé en ce que l'axe d' articulation théorique (11) occupe une orientation comprise entre la perpendiculaire au plan de flottaison de la coque (1) et la parallèle au bord d'attaque (23) de l'aileron (2).9-Drift device according to any one of the preceding claims, characterized in that the axis of theoretical joint (11) occupies an orientation between the perpendicular to the plane of flotation of the hull (1) and the parallel to the leading edge (23) of the fin (2).
EP86420191A 1986-05-14 1986-07-16 Centerboard or analogous working in a fluid Withdrawn EP0245571A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8607346 1986-05-14
FR8607346A FR2598756A1 (en) 1986-05-14 1986-05-14 DEVICE FOR DERIVATIVE OR THE LIKE, ACTING IN A FLUID

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EP0245571A1 true EP0245571A1 (en) 1987-11-19

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EP86420191A Withdrawn EP0245571A1 (en) 1986-05-14 1986-07-16 Centerboard or analogous working in a fluid

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FR (1) FR2598756A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680494A1 (en) * 1991-08-19 1993-02-26 F2 Int Gmbh WING FOR SAILBOARD.
WO2006123054A1 (en) * 2005-05-18 2006-11-23 Hugo Heesterman Fin unit with elastic attachment system on an underside of a marine apparatus
US7896718B2 (en) * 2005-06-13 2011-03-01 Cameron Grant Jones Fin or keel with flexible portion for surfboards, sailboards or the like
FR3026379A1 (en) * 2014-09-30 2016-04-01 Jean Francois Iglesias PROFILE WING WITH PROGRESSIVE AND SIMULTANEOUS CAMBRIDGE AND INCIDENCE VARIATION

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040104A1 (en) * 1980-10-24 1982-08-19 Renate Dipl.-Metr. Hintze Passively-flexing watercraft keel or rudder - is frame carrying pivoting leading-edge piece with flexible closing panels, flexibly sheathed
DE3246126A1 (en) * 1982-12-13 1984-06-14 Franz 8011 Neukeferloh Hegele Fin for a windsurfing board
DE3248580A1 (en) * 1982-12-30 1984-07-05 Dieter 8242 Bischofswiesen Frank Fin for a surfboard

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3040104A1 (en) * 1980-10-24 1982-08-19 Renate Dipl.-Metr. Hintze Passively-flexing watercraft keel or rudder - is frame carrying pivoting leading-edge piece with flexible closing panels, flexibly sheathed
DE3246126A1 (en) * 1982-12-13 1984-06-14 Franz 8011 Neukeferloh Hegele Fin for a windsurfing board
DE3248580A1 (en) * 1982-12-30 1984-07-05 Dieter 8242 Bischofswiesen Frank Fin for a surfboard

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2680494A1 (en) * 1991-08-19 1993-02-26 F2 Int Gmbh WING FOR SAILBOARD.
US5273471A (en) * 1991-08-19 1993-12-28 F2 International Ges. M.B.H. Fin for a windsurf board
WO2006123054A1 (en) * 2005-05-18 2006-11-23 Hugo Heesterman Fin unit with elastic attachment system on an underside of a marine apparatus
FR2885875A1 (en) * 2005-05-18 2006-11-24 Hugo Heesterman WING ASSEMBLY WITH ELASTIC ATTACHMENT SYSTEM ON BOAT CARINE
AU2006248818B2 (en) * 2005-05-18 2012-01-19 Hugo Heesterman Fin unit with elastic attachment system on an underside of a marine apparatus
US7896718B2 (en) * 2005-06-13 2011-03-01 Cameron Grant Jones Fin or keel with flexible portion for surfboards, sailboards or the like
AU2006258322B2 (en) * 2005-06-13 2012-08-02 Cameron Grant Jones Fin or keel with flexible portion for surfboards, sailboards or the like
FR3026379A1 (en) * 2014-09-30 2016-04-01 Jean Francois Iglesias PROFILE WING WITH PROGRESSIVE AND SIMULTANEOUS CAMBRIDGE AND INCIDENCE VARIATION
US10035579B2 (en) 2014-09-30 2018-07-31 Jean Francois Iglesias Device for simultaneously and progressively varying the camber and the angle of attack of hydrodynamic and aerodynamic wings

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FR2598756A1 (en) 1987-11-20

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