EP1353839B1 - Device for varying a multihull capsizing torque - Google Patents

Device for varying a multihull capsizing torque Download PDF

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Publication number
EP1353839B1
EP1353839B1 EP01271305A EP01271305A EP1353839B1 EP 1353839 B1 EP1353839 B1 EP 1353839B1 EP 01271305 A EP01271305 A EP 01271305A EP 01271305 A EP01271305 A EP 01271305A EP 1353839 B1 EP1353839 B1 EP 1353839B1
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EP
European Patent Office
Prior art keywords
platform
hull
connecting beam
pulley
geometrical
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EP01271305A
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German (de)
French (fr)
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EP1353839A1 (en
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David Leon
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Leon David
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Individual
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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 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/0083—Masts for sailing ships or boats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
    • B63B2001/123—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls interconnected by a plurality of beams, or the like members only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B2015/0016—Masts characterized by mast configuration or construction
    • B63B2015/005—Masts characterized by mast configuration or construction with means for varying mast position or orientation with respect to the hull

Definitions

  • the present invention relates to a device for varying the capsizing torque of a multihull.
  • gearbox reduction devices of this type are known for monohulls, they continue to be developed in order to allow their application to multihulls and to increase their performance, particularly with a view to greater safety. in navigation for this type of ship and many other benefits that will be described later.
  • the purpose of the invention is to propose a device intended to vary the capsizing torque of a multihull in which the forces to be exerted by the crew during the straightening of the multihull are also minimized.
  • the present invention relates to a device for varying the capsizing torque of a multihull consisting of at least two floats connected together by at least two beams respectively designated forward link beam and rear link beam, characterized in that it comprises a geometrical platform supporting a mast and a crew nacelle and in that said platform is slidably mounted transversal on the multihull to allow, depending on the balance sought by the crew, the movement of the mast and crew basket from one side to the other of the multihull.
  • the geometric platform is provided with sliding means of the carriages type adapted to cooperate with a transverse guide rail mounted integrally on each of the beams of the multihull.
  • the geometric platform also comprises means for its movement, of the hoist and listening type, cooperating with the floats of the multihull.
  • the platform comprises a central habitable structure.
  • the geometric platform comprises a transverse beam cooperating with the rear link beam and a mast located substantially in line with the front link beam.
  • said platform comprises three attachment points arranged in an isosceles triangle whose base is parallel to the transverse beam of the platform, these three attachment points being each connected by a stay at the upper part of the mast thus ensuring proper maintenance of the latter.
  • these three attachment points represent the ends of a star-shaped rigid structure whose junction zone of the branches corresponds to the positioning zone of the mast and of which two of the three attachment points are located on the transverse beam of the geometric platform.
  • This star structure is advantageously covered with a trampoline ensuring the geometric platform the shape of an isosceles triangle.
  • Another object of the present invention relates to a multihull consisting of at least two floats connected together by at least two beams respectively designated forward link beam and rear link beam equipped with a device for varying the capsizing torque according to the invention. any of the above characteristics.
  • the lateral sliding means of the platform consist of a carriage disposed at the front of the platform substantially to the right of the mast cooperating with a guide rail mounted on the front link beam and two rear carriages cooperating between the beam of the platform and the rear link beam.
  • the means for moving the platform on one side or the other of the ship consist of a fixed hoist with double pulley on each float designated left hoist and right hoist, a hoist central also double pulley secured to the beam of the mobile platform and a single-stranded listening arranged on the pulleys of the various hoists so that a force in one direction causes the displacement of the platform in the opposite direction.
  • FIGS. 1 to 6 show the representation of a multihull, in this case a catamaran 12 consisting conventionally of two floats 9 coupled by two transverse link beams designated in the following respectively front link beam 6 and back 8.
  • This catamaran 12 is advantageously equipped with a device 14 for varying its capsizing torque consisting of the veil force and the anti-drift force forces submitted on the boat when sailing.
  • this device 14 comprises a geometrical platform 15 supporting a mast 1 and a crew nacelle 10, this platform 15 being mounted to slide transversely on the multihull 12 to allow, as a function of the balance sought by the crew, moving the mast 1 and the crew pod 10 from one side to the other of the multihull, thus increasing or decreasing the torque of forces tending to capsize the ship.
  • this geometric platform 15 is provided with sliding means, described in more detail in the rest of the description, of the type of carriages 7 and 16 able to cooperate each with a rail.
  • transverse guide not shown, mounted integral with each of the beams 6 and 8 of the multihull.
  • the geometric platform 15 comprises a transverse beam 4 cooperating with the rear link beam 6 of the catamaran 12 and a mast 1 located substantially to the right of the front connecting beam 8 of the ship.
  • said platform 15 has three attachment points A, B and C advantageously arranged in an isosceles triangle whose base is parallel to the transverse beam 4 of the platform 15, these three fixing points A, B and C being each connected by a stay 13 at the top of the mast 1.
  • these three attachment points A, B and C represent the ends of a rigid star-shaped structure 3 whose junction zone of the branches corresponds to the positioning zone of the mast 1 and two of which B and C of the three attachment points are located on the transverse beam 4 of the geometric platform 15, as shown in Figures 2 to 4.
  • This rigid star structure 3 further supports the arrangement symmetrically of a nacelle 10 or folding seats allowing the crew to sit, as shown in Figure 1.
  • the geometrical platform 15 may assume different shapes, such as those shown diagrammatically in FIGS. 9 and 10, namely two perpendicular beams 17 and 18 or an arrangement of rigid beams 19 presenting the form of a rectangle separated by a longitudinal beam 20, one end of which constitutes one of the three attachment points for the stay cables 13.
  • Each of these structures and the star structure 3 is further covered with a trampoline 21 to allow any movement of the crew.
  • This trampoline 21 arranged on the structure 3 to form an isosceles triangle provides a significant displacement surface for the navigators compared to a conventional catamaran. It will also be noted that this displacement surface can be further increased by arranging a second trampoline 26 between the front and rear connecting beams 6.
  • the platform 15 may also include a central habitable structure, not shown.
  • the lateral sliding means of the platform 15 advantageously consist, as mentioned above, of a carriage 7 disposed at the front of the platform 15 substantially to the right of the mast 1 cooperating with a guide rail (not shown) mounted on the front link beam 8 and two rear carriages 16 cooperating between the beam 4 of the platform 15 and the rear link beam 6, as shown in Figures 7 and 8.
  • the means for moving the platform 15 on one side or the other of the ship are, for example, consist of a fixed hoist with double pulley on each float 9 designated left hoist 22 and right hoist 23, a central hoist 24 also double pulley secured to the beam 4 of the mobile platform 15 and a single-stranded listening arrangement 25, as explained in FIG. 8, on the pulleys of the various hoists 22, 23 and 24 so that a force in one direction causes the platform 15 to move in the opposite direction.
  • the crew usually composed of four people can decide, depending on the external conditions, that is to say the intensity of the wind, to move the platform laterally 15 by pulling on one sides of the listening 25 according to the desired direction of movement, thus displacing the center of gravity of the ship 12 and consequently resulting in a relief of the float 9 located in the wind see its exit from the water which reduces the surface of friction during weak wind. Conversely, it will increase the same float 9 during stronger wind, to find the balance allowing the multihull 12 to increase its speed while maintaining a large sail area.
  • the device according to the present invention allows a displacement of the platform 15 by at least half of its width.
  • the device according to the present invention mounted on a multihull namely a catamaran or a trimaran allows the use of this type of ship to a wider audience by making it more stable and more comfortable than a classic multihull.
  • this device allows to adjust the weight / power / balance ratios, with the aim: to increase the power in the strong wind, to balance the weights according to the force of the wind, to increase the power in the wind low, to shift the center of gravity to allow self-straightening, to navigate comfortably, and to increase the safety of the crew.
  • the mast 1 can comprise different sails without departing from the scope of the invention.
  • the displacement of the geometric shape can be effected by means of hydraulic cylinders or the like.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Threshing Machine Elements (AREA)
  • Transmission Devices (AREA)

Abstract

The present invention relates to a device for varying the capsizing torque of a multiple-hull vessel (12), consisting of at least two floats (9) connected together by at least two beams respectively referred to as the front connecting beam (8) and the rear connecting beam (6), characterized in that it comprises a geometric platform (15) supporting a mast assembly (1) and a crew nacelle (10) and in that the said platform (15) is mounted in a transverse sliding manner on the multiple-hull vessel (12) in order to allow, depending on the equilibrium sought by the crew, the movement of the mast assembly (1) and of the crew nacelle (10) from one edge of the multiple-hull vessel (12) to the other. It also relates to a multiple-hull vessel equipped with this device.

Description

La présente invention concerne un dispositif destiné à faire varier le couple de chavirement d'un multicoque.The present invention relates to a device for varying the capsizing torque of a multihull.

Elle se rapporte également à un multicoque équipé de ce dispositif.It also relates to a multihull equipped with this device.

On sait que les multicoques, c'est-à-dire les catamarans et trimarans, sont des navires qui restent, malgré les évolutions technologiques, peu sécurisants du fait de leur facilité au chavirement ce qui nécessite un certain niveau de connaissances du navigateur afin d'éviter une telle conséquence.We know that multihulls, that is to say, catamarans and trimarans, are ships that remain, despite technological developments, not very secure because of their ability to capsize which requires a certain level of knowledge of the browser to avoid such a consequence.

La vitesse de ces bateaux comparée à celle des monocoques rend le chavirement encore plus dangereux. Par ailleurs, une fois chaviré, il devient très difficile pour l'équipage du bateau de le redresser.The speed of these boats compared to that of monohulls makes capsizing even more dangerous. Moreover, once capsized, it becomes very difficult for the crew of the boat to straighten it.

On connaît déjà dans l'état de la technique antérieure notamment par le brevet US 4,337,714, un dispositif permettant de réduire la gîte d'un monocoque afin d'améliorer notamment l'allure du bateau. Ce dispositif est constitué d'une piste rectiligne montée rigidement sur la coque et disposée transversalement par rapport à l'axe longitudinal de la coque sur laquelle est monté à coulissement un pied de mât. Ce pied de mât est apte à être déplacé d'un bord à l'autre de la coque au moyen d'une écoute guidée dans des poulies disposées de manière symétrique sur la coque du navire.Already known in the state of the prior art including US Pat. No. 4,337,714, a device for reducing the heel of a monohull to improve the appearance of the boat. This device consists of a rectilinear track rigidly mounted on the hull and arranged transversely to the longitudinal axis of the hull on which is slidably mounted a mast foot. This mast foot is adapted to be moved from one edge to the other of the hull by means of a guided listening in pulleys arranged symmetrically on the hull of the ship.

Bien que les dispositifs de réduction de la gîte de ce type soient connus pour les monocoques, ils continuent de faire l'objet de développements visant à permettre leur application aux multicoques et à en augmenter les performances, notamment en vue d'une plus grande sécurité en navigation pour ce type de navire et encore de nombreux autres avantages qui seront décrits ultérieurement.Although gearbox reduction devices of this type are known for monohulls, they continue to be developed in order to allow their application to multihulls and to increase their performance, particularly with a view to greater safety. in navigation for this type of ship and many other benefits that will be described later.

Ainsi, l'invention a pour but de proposer un dispositif destiné à faire varier le couple de chavirement d'un multicoque dans lequel les efforts à exercer par l'équipage lors du redressage du multicoque sont également minimisés.Thus, the purpose of the invention is to propose a device intended to vary the capsizing torque of a multihull in which the forces to be exerted by the crew during the straightening of the multihull are also minimized.

A cet effet, la présente invention a pour objet un dispositif destiné à faire varier le couple de chavirement d'un multicoque constitué d'au moins deux flotteurs reliés ensemble par au moins deux poutres désignées respectivement poutre de liaison avant et poutre de liaison arrière, caractérisé en ce qu'il comporte une plate-forme géométrique supportant une mâture et une nacelle d'équipage et en ce que la dite plate-forme est montée à coulissement transversal sur le multicoque pour permettre, en fonction de l'équilibre recherché par l'équipage, le déplacement de la mâture et de la nacelle d'équipage d'un bord à l'autre du multicoque.For this purpose, the present invention relates to a device for varying the capsizing torque of a multihull consisting of at least two floats connected together by at least two beams respectively designated forward link beam and rear link beam, characterized in that it comprises a geometrical platform supporting a mast and a crew nacelle and in that said platform is slidably mounted transversal on the multihull to allow, depending on the balance sought by the crew, the movement of the mast and crew basket from one side to the other of the multihull.

On comprend donc déjà que le coulissement latéral de la plate-forme va permettre de déplacer le centre de gravité du bateau. Un tel déplacement pourra notamment permettre de déplacer le pied de la mâture sensiblement au niveau d'un des flotteurs dans un sens et dans l'autre.It is therefore already understood that the lateral sliding of the platform will allow to move the center of gravity of the boat. Such displacement may in particular allow to move the foot of the mast substantially at one of the floats in one direction and the other.

Suivant une autre caractéristique de l'invention, la plate-forme géométrique est munie de moyens de coulissement du type chariots aptes à coopérer avec un rail de guidage transversal monté solidaire sur chacune des poutres du multicoque.According to another characteristic of the invention, the geometric platform is provided with sliding means of the carriages type adapted to cooperate with a transverse guide rail mounted integrally on each of the beams of the multihull.

Suivant encore une autre caractéristique de l'invention, la plate-forme géométrique comporte également des moyens permettant son déplacement, du type palan et écoute, coopérant avec les flotteurs du multicoque.According to yet another characteristic of the invention, the geometric platform also comprises means for its movement, of the hoist and listening type, cooperating with the floats of the multihull.

On comprend que ces moyens constitueront une fonctionnalité nouvelle pour le navigateur par rapport à un multicoque classique, lui permettant d'appréhender des sensations de navigation différentes.It is understood that these means will be a new feature for the browser compared to a classic multihull, allowing him to apprehend different sensations of navigation.

Selon un mode de réalisation particulier, la plate-forme comporte une structure habitable centrale.According to a particular embodiment, the platform comprises a central habitable structure.

Suivant une autre caractéristique de l'invention, la plate-forme géométrique comporte une poutre transversale coopérant avec la poutre de liaison arrière et une mâture située sensiblement au droit de la poutre de liaison avant.According to another characteristic of the invention, the geometric platform comprises a transverse beam cooperating with the rear link beam and a mast located substantially in line with the front link beam.

Suivant encore une autre caractéristique de l'invention, ladite plate-forme comporte trois points de fixation disposés selon un triangle isocèle dont la base est parallèle à la poutre transversale de la plate-forme, ces trois points de fixation étant reliés chacun par un hauban à la partie supérieure de la mâture assurant ainsi un maintien adéquat de cette dernière.According to yet another characteristic of the invention, said platform comprises three attachment points arranged in an isosceles triangle whose base is parallel to the transverse beam of the platform, these three attachment points being each connected by a stay at the upper part of the mast thus ensuring proper maintenance of the latter.

Selon un mode de réalisation particulier, ces trois points de fixation représentent les extrémités d'une structure rigide en forme d'étoile dont la zone de jonction des branches correspond à la zone de positionnement de la mâture et dont deux des trois points de fixation sont situés sur la poutre transversale de la plate-forme géométrique. Cette structure en étoile est avantageusement recouverte d'un trampoline assurant à la plate-forme géométrique la forme d'un triangle isocèle.According to a particular embodiment, these three attachment points represent the ends of a star-shaped rigid structure whose junction zone of the branches corresponds to the positioning zone of the mast and of which two of the three attachment points are located on the transverse beam of the geometric platform. This star structure is advantageously covered with a trampoline ensuring the geometric platform the shape of an isosceles triangle.

Un autre objet de la présente invention concerne un multicoque constitué d'au moins deux flotteurs reliés ensemble par au moins deux poutres désignées respectivement poutre de liaison avant et poutre de liaison arrière équipé d'un dispositif destiné à faire varier le couple de chavirement selon l'une quelconque des caractéristiques susmentionnées.Another object of the present invention relates to a multihull consisting of at least two floats connected together by at least two beams respectively designated forward link beam and rear link beam equipped with a device for varying the capsizing torque according to the invention. any of the above characteristics.

Suivant une caractéristique avantageuse de l'invention, les moyens de coulissement latéral de la plate-forme sont constitués d'un chariot disposé à l'avant de la plate-forme sensiblement au droit de la mâture coopérant avec un rail de guidage monté sur la poutre de liaison avant et de deux chariots arrière coopérant entre la poutre de la plate-forme et la poutre de liaison arrière.According to an advantageous characteristic of the invention, the lateral sliding means of the platform consist of a carriage disposed at the front of the platform substantially to the right of the mast cooperating with a guide rail mounted on the front link beam and two rear carriages cooperating between the beam of the platform and the rear link beam.

Toujours selon l'invention, les moyens de déplacement de la plate-forme d'un côté ou de l'autre du navire sont constitués d'un palan fixe à double poulie sur chaque flotteur désigné palan gauche et palan droit, d'un palan central également à double poulie solidaire de la poutre de la plate-forme mobile et d'une écoute à un seul brin agencé sur les poulies des différents palans de telle sorte qu'un effort dans un sens entraîne le déplacement de la plate-forme dans le sens opposé.Still according to the invention, the means for moving the platform on one side or the other of the ship consist of a fixed hoist with double pulley on each float designated left hoist and right hoist, a hoist central also double pulley secured to the beam of the mobile platform and a single-stranded listening arranged on the pulleys of the various hoists so that a force in one direction causes the displacement of the platform in the opposite direction.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, en se référant aux dessins annexés sur lesquels :

  • la figure 1 est une vue de côté d'un catamaran équipé d'un dispositif selon la présente invention,
  • les figures 2 à 4 sont des vues de dessus du catamaran de la figure 1 respectivement en position normale, en position extrême à droite et en position extrême à gauche du dispositif selon l'invention,
  • les figures 5 et 6 sont des vues de face suivant respectivement les positions des figures 2 et 4,
  • la figure 7 est une vue en perspective schématique d'un catamaran équipé d'un dispositif selon la présente invention,
  • la figure 8 est une vue arrière schématique du catamaran selon la figure 1 sur laquelle est schématisé un mécanisme de déplacement du dispositif, et
  • les figures 9 et 10 sont des vues de dessus de variantes de réalisation du dispositif.
The characteristics of the invention mentioned above, as well as others, will emerge more clearly on reading the following description of an exemplary embodiment, with reference to the appended drawings in which:
  • FIG. 1 is a side view of a catamaran equipped with a device according to the present invention,
  • FIGS. 2 to 4 are top views of the catamaran of FIG. 1 respectively in the normal position, in the extreme rightmost position and in the extreme left position of the device according to the invention,
  • FIGS. 5 and 6 are front views respectively along the positions of FIGS. 2 and 4,
  • FIG. 7 is a schematic perspective view of a catamaran equipped with a device according to the present invention,
  • FIG. 8 is a schematic rear view of the catamaran according to FIG. 1 on which is schematized a movement mechanism of the device, and
  • Figures 9 and 10 are top views of alternative embodiments of the device.

Il est précisé que les termes « avant », « arrière », « gauche » et « droite » utilisés dans la suite de la description sont établis en référence au sens de déplacement du navire 12.It is specified that the terms "forward", "rear", "left" and "right" used in the remainder of the description are established with reference to the direction of movement of the ship 12.

On peut voir sur les figures 1 à 6, la représentation d'un multicoque en l'occurrence d'un catamaran 12 constitué de manière classique de deux flotteurs 9 accouplés par deux poutres de liaison transversales désignées dans la suite respectivement poutre de liaison avant 6 et arrière 8.FIGS. 1 to 6 show the representation of a multihull, in this case a catamaran 12 consisting conventionally of two floats 9 coupled by two transverse link beams designated in the following respectively front link beam 6 and back 8.

Ce catamaran 12 est avantageusement équipé d'un dispositif 14 destiné à faire varier son couple de chavirement constitué de la force vélique et de la force anti-dérive, forces soumises sur le bateau lorsqu'il navigue à la voile. A cet effet, selon la présente invention ce dispositif 14 comporte une plate-forme géométrique 15 supportant une mâture 1 et une nacelle d'équipage 10, cette plate-forme 15 étant montée à coulissement transversal sur le multicoque 12 pour permettre, en fonction de l'équilibre recherché par l'équipage, le déplacement de la mâture 1 et de la nacelle d'équipage 10 d'un bord à l'autre du multicoque, augmentant ou diminuant ainsi le couple de forces tendant à faire chavirer le navire.This catamaran 12 is advantageously equipped with a device 14 for varying its capsizing torque consisting of the veil force and the anti-drift force forces submitted on the boat when sailing. For this purpose, according to the present invention this device 14 comprises a geometrical platform 15 supporting a mast 1 and a crew nacelle 10, this platform 15 being mounted to slide transversely on the multihull 12 to allow, as a function of the balance sought by the crew, moving the mast 1 and the crew pod 10 from one side to the other of the multihull, thus increasing or decreasing the torque of forces tending to capsize the ship.

Selon un mode de réalisation représenté schématiquement aux figures 7 et 8, cette plate-forme géométrique 15 est munie de moyens de coulissement, décrits plus en détail dans la suite de la description, du type chariots 7 et 16 aptes à coopérer chacun avec un rail de guidage transversal, non représenté, monté solidaire sur chacune des poutres 6 et 8 du multicoque.According to an embodiment shown diagrammatically in FIGS. 7 and 8, this geometric platform 15 is provided with sliding means, described in more detail in the rest of the description, of the type of carriages 7 and 16 able to cooperate each with a rail. transverse guide, not shown, mounted integral with each of the beams 6 and 8 of the multihull.

Selon un mode de réalisation préférentiel, la plate-forme géométrique 15 comporte une poutre transversale 4 coopérant avec la poutre de liaison arrière 6 du catamaran 12 et une mâture 1 située sensiblement au droit de la poutre de liaison avant 8 du navire.According to a preferred embodiment, the geometric platform 15 comprises a transverse beam 4 cooperating with the rear link beam 6 of the catamaran 12 and a mast 1 located substantially to the right of the front connecting beam 8 of the ship.

Afin d'assurer un maintien adéquat de la mâture 1, ladite plate-forme 15 comporte trois points de fixation A, B et C disposés avantageusement selon un triangle isocèle dont la base est parallèle à la poutre transversale 4 de la plate-forme 15, ces trois points de fixation A, B et C étant reliés chacun par un hauban 13 à la partie supérieure de la mâture 1.In order to ensure proper maintenance of the mast 1, said platform 15 has three attachment points A, B and C advantageously arranged in an isosceles triangle whose base is parallel to the transverse beam 4 of the platform 15, these three fixing points A, B and C being each connected by a stay 13 at the top of the mast 1.

En outre, on constatera que de manière préférentielle ces trois points de fixation A, B et C représentent les extrémités d'une structure rigide 3 en forme d'étoile dont la zone de jonction des branches correspond à la zone de positionnement de la mâture 1 et dont deux B et C des trois points de fixation sont situés sur la poutre transversale 4 de la plate-forme géométrique 15, comme représenté sur les figures 2 à 4.In addition, it will be noted that, preferably, these three attachment points A, B and C represent the ends of a rigid star-shaped structure 3 whose junction zone of the branches corresponds to the positioning zone of the mast 1 and two of which B and C of the three attachment points are located on the transverse beam 4 of the geometric platform 15, as shown in Figures 2 to 4.

Cette structure rigide 3 en étoile supporte en outre l'agencement de manière symétrique d'une nacelle 10 ou de strapontins permettant à l'équipage de s'asseoir, comme visible sur la figure 1.This rigid star structure 3 further supports the arrangement symmetrically of a nacelle 10 or folding seats allowing the crew to sit, as shown in Figure 1.

On constate sans sortir du cadre de l'invention que la plate-forme géométrique 15 peut revêtir différentes formes telles que celles schématisées sur les figures 9 et 10, à savoir deux poutres perpendiculaires 17 et 18 ou encore un agencement de poutres rigides 19 présentant la forme d'un rectangle séparé par une poutre longitudinale 20 dont l'une des extrémités constitue l'un A des trois points de fixation pour les haubans 13.Without departing from the scope of the invention, it can be seen that the geometrical platform 15 may assume different shapes, such as those shown diagrammatically in FIGS. 9 and 10, namely two perpendicular beams 17 and 18 or an arrangement of rigid beams 19 presenting the form of a rectangle separated by a longitudinal beam 20, one end of which constitutes one of the three attachment points for the stay cables 13.

Chacune de ces structures ainsi que la structure 3 en étoile est en outre recouverte d'un trampoline 21 afin de permettre les déplacements éventuels de l'équipage. Ce trampoline 21 agencé sur la structure 3 afin de former un triangle isocèle offre une surface de déplacement importante pour les navigateurs par rapport à un catamaran classique. On notera également que cette surface de déplacement peut encore être augmentée en disposant entre les poutres de liaison avant 8 et arrière 6 un second trampoline 26.Each of these structures and the star structure 3 is further covered with a trampoline 21 to allow any movement of the crew. This trampoline 21 arranged on the structure 3 to form an isosceles triangle provides a significant displacement surface for the navigators compared to a conventional catamaran. It will also be noted that this displacement surface can be further increased by arranging a second trampoline 26 between the front and rear connecting beams 6.

Selon encore une autre variante de réalisation non représentée, la plate-forme 15 peut comporter également une structure habitable centrale, non représentée.According to yet another alternative embodiment not shown, the platform 15 may also include a central habitable structure, not shown.

Les moyens de coulissement latéral de la plate-forme 15 sont constitués avantageusement, comme mentionné ci-dessus, d'un chariot 7 disposé à l'avant de la plate-forme 15 sensiblement au droit de la mâture 1 coopérant avec un rail de guidage (non représenté) monté sur la poutre de liaison avant 8 et de deux chariots arrière 16 coopérant entre la poutre 4 de la plate-forme 15 et la poutre de liaison arrière 6, comme visible sur les figures 7 et 8.The lateral sliding means of the platform 15 advantageously consist, as mentioned above, of a carriage 7 disposed at the front of the platform 15 substantially to the right of the mast 1 cooperating with a guide rail (not shown) mounted on the front link beam 8 and two rear carriages 16 cooperating between the beam 4 of the platform 15 and the rear link beam 6, as shown in Figures 7 and 8.

Les moyens de déplacement de la plate-forme 15 d'un côté ou de l'autre du navire sont, par exemple, constitués d'un palan fixe à double poulie sur chaque flotteur 9 désigné palan gauche 22 et palan droit 23, d'un palan central 24 également à double poulie solidaire de la poutre 4 de la plate-forme mobile 15 et d'une écoute 25 à un seul brin agencée, comme explicité sur la figure 8, sur les poulies des différents palans 22, 23 et 24 de telle sorte qu'un effort dans un sens entraîne le déplacement de la plate-forme 15 dans le sens opposé.The means for moving the platform 15 on one side or the other of the the ship are, for example, consist of a fixed hoist with double pulley on each float 9 designated left hoist 22 and right hoist 23, a central hoist 24 also double pulley secured to the beam 4 of the mobile platform 15 and a single-stranded listening arrangement 25, as explained in FIG. 8, on the pulleys of the various hoists 22, 23 and 24 so that a force in one direction causes the platform 15 to move in the opposite direction.

Le fonctionnement du dispositif destiné à faire varier le couple de chavirement d'un multicoque ressort déjà de la description qui en a été faite ci-dessus et va être maintenant expliqué en relation avec les figures 1 à 10.The operation of the device for varying the capsizing torque of a multihull is already apparent from the description which has been made above and will now be explained in connection with Figures 1 to 10.

Lors de la navigation, l'équipage composé généralement de quatre personnes peut décider, en fonction des conditions extérieures, c'est-à-dire de l'intensité du vent, de déplacer latéralement la plate-forme 15 en tirant sur l'un des côtés de l'écoute 25 suivant le sens désiré du déplacement, déplaçant ainsi le centre de gravité du navire 12 et entraînant par voie de conséquence un allégement du flotteur 9 situé au vent voir sa sortie de l'eau ce qui diminue la surface de frottement lors de vent faible. Inversement, il alourdira ce même flotteur 9 lors de vent plus fort, afin de trouver l'équilibre permettant au multicoque 12 d'augmenter sa vitesse tout en conservant une surface de voile importante.During navigation, the crew usually composed of four people can decide, depending on the external conditions, that is to say the intensity of the wind, to move the platform laterally 15 by pulling on one sides of the listening 25 according to the desired direction of movement, thus displacing the center of gravity of the ship 12 and consequently resulting in a relief of the float 9 located in the wind see its exit from the water which reduces the surface of friction during weak wind. Conversely, it will increase the same float 9 during stronger wind, to find the balance allowing the multihull 12 to increase its speed while maintaining a large sail area.

Ainsi en déplaçant la plate-forme 15 et par conséquent la mâture 1 et l'équipage, le centre de gravité est déplacé de sorte que le couple de chavirement se retrouve modulable. Les probabilités de chavirement d'un tel navire se retrouvent largement diminuées au profit d'une sécurité nettement améliorée.Thus by moving the platform 15 and therefore the mast 1 and the crew, the center of gravity is moved so that the capsizing torque is found to be flexible. The chances of capsizing such a ship are greatly diminished in favor of much improved safety.

En outre, lors d'un éventuel chavirement, le déplacement latéral de la plate-forme 15 et donc de la mâture 1 permet de positionner le centre de gravité du bateau équipé d'un tel dispositif au-dessus de la poussée d'Archimède, annulant par voie de conséquence le couple de chavirement. Par un tel déplacement, un navigateur novice aura une plus grande aisance à redresser son bateau.In addition, during a possible capsize, the lateral displacement of the platform 15 and thus of the mast 1 makes it possible to position the center of gravity of the boat equipped with such a device over the buoyancy of Archimedes, thus canceling the capsizing couple. By such a move, a novice navigator will have greater ease in straightening his boat.

On notera que le dispositif selon la présente invention permet un déplacement de la plate-forme 15 d'au moins la moitié de sa largeur.Note that the device according to the present invention allows a displacement of the platform 15 by at least half of its width.

On comprend que le dispositif selon la présente invention monté sur un multicoque à savoir un catamaran ou un trimaran permet l'utilisation de ce type de navire à un plus large public en le rendant plus stable et plus confortable qu'un multicoque classique.It is understood that the device according to the present invention mounted on a multihull namely a catamaran or a trimaran allows the use of this type of ship to a wider audience by making it more stable and more comfortable than a classic multihull.

En outre, ce dispositif permet d'ajuster les rapports poids /puissance/équilibre, dans le but : d'augmenter la puissance dans le vent fort, d'équilibrer les poids suivant la force du vent, d'augmenter la puissance dans le vent faible, de déplacer le centre de gravité pour permettre un auto-redressage, de naviguer confortablement, et d'augmenter la sécurité de l'équipage.In addition, this device allows to adjust the weight / power / balance ratios, with the aim: to increase the power in the strong wind, to balance the weights according to the force of the wind, to increase the power in the wind low, to shift the center of gravity to allow self-straightening, to navigate comfortably, and to increase the safety of the crew.

Bien que l'invention ait été décrite en liaison avec un mode de réalisation particulier elle comprend tous les équivalents techniques des moyens décrits.Although the invention has been described in connection with a particular embodiment it includes all the technical equivalents of the means described.

C'est ainsi que la mâture 1 peut comprendre différentes voiles sans sortir du cadre de l'invention. De même, le déplacement de la forme géométrique peut s'effectuer par l'intermédiaire de vérins hydraulique ou analogue.This is how the mast 1 can comprise different sails without departing from the scope of the invention. Similarly, the displacement of the geometric shape can be effected by means of hydraulic cylinders or the like.

Claims (11)

  1. Apparatus intended to vary the capsizing torque of a multi-hull (12) made up of at least two floats (9) interconnected by at least two beams, designated the front connecting beam (8) and the rear connecting beam (6) respectively, characterised in that it includes a geometrical platform (15) supporting a mast arrangement (1) and a crew cockpit (10), and in that said platform (15) is mounted on the multi-hull (12) in a transversely sliding manner in order to permit, in dependence on the balance sought by the crew, the displacement of the mast arrangement (1) and of the crew cockpit (10) from one side of the multi-hull (12) to the other.
  2. Apparatus according to claim 1, characterised in that the geometrical platform (15) is provided with sliding means (7, 16) of the carriage type, which are capable of co-operating with a transverse guide rail integrally mounted on each of the beams (6, 8) of the multi-hull.
  3. Apparatus according to claim 1 or 2, characterised in that the geometrical platform (15) also includes means (22, 23, 24 and 25) of the pulley-block and sheet type which permit its displacement and co-operate with the floats (9) of the multi-hull (12).
  4. Apparatus according to any one of the preceding claims, characterised in that the platform (15) includes a central habitable structure.
  5. Apparatus according to one of the preceding claims, characterised in that the geometrical platform (15) includes a transverse beam (4), which co-operates with the rear connecting beam (6) and a mast arrangement (1) situated substantially at right angles to the front connecting beam (8).
  6. Apparatus according to claim 4, characterised in that said platform (15) includes three securement points (A, B and C) disposed in the form of an isosceles triangle, the base of which is parallel to the transverse beam (4) of the platform (15), these three securement points (A, B and C) each being connected to the upper portion of the mast arrangement (1) by a stay (13), thereby ensuring adequate retention of said mast arrangement (1).
  7. Apparatus according to claim 5, characterised in that the three securement points (A, B and C) represent the extremities of a rigid structure (3) in the form of a star, the junction zone of the branches of which corresponds to the positioning zone of the mast arrangement (1), and of which two (B and C) of the three securement points are situated on the transverse beam (4) of the geometrical platform (15).
  8. Apparatus according to claim 6, characterised in that the star-shaped structure (3) is covered by a trampoline (21), which ensures that the geometrical platform has the configuration of an isosceles triangle.
  9. Multi-hull made up of at least two floats interconnected by at least two beams, designated the front connecting beam and the rear connecting beam respectively, said multi-hull being fitted with an apparatus intended to vary the capsizing torque according to any one of claims 1 to 9.
  10. Multi-hull according to claim 9, characterised in that the lateral sliding means of the platform (15) are made up of a carriage (7), which is disposed at the front of the platform (15) substantially at right angles to the mast arrangement (1) and co-operates with a guide rail mounted on the front connecting beam (8), and two rear carriages (16) which co-operate between the beam (4) of the platform (15) and the rear connecting beam (6).
  11. Multi-hull according to claim 9 or 10, characterised in that the means for displacing the platform (15) from one side or the other side of the boat are made up of a fixed pulley-block with a double pulley on each float (9), designated the left pulley-block (22) and the right pulley-block (23), a central pulley-block (24) also with a double pulley integral with the beam (4) of the displaceable platform (15), and a sheet (25) with a single strand fitted on the pulleys of the various pulley-blocks (22, 23 and 24), so that a force in one direction entrains the displacement of the platform (15) in the opposite direction.
EP01271305A 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque Expired - Lifetime EP1353839B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0016695 2000-12-20
FR0016695A FR2818237A1 (en) 2000-12-20 2000-12-20 SIDE ADJUSTABLE RIG
PCT/FR2001/003990 WO2002049909A1 (en) 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque

Publications (2)

Publication Number Publication Date
EP1353839A1 EP1353839A1 (en) 2003-10-22
EP1353839B1 true EP1353839B1 (en) 2006-05-03

Family

ID=8857947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01271305A Expired - Lifetime EP1353839B1 (en) 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque

Country Status (7)

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US (1) US20040094080A1 (en)
EP (1) EP1353839B1 (en)
AT (1) ATE325032T1 (en)
AU (1) AU2002219303A1 (en)
DE (1) DE60119384D1 (en)
FR (1) FR2818237A1 (en)
WO (1) WO2002049909A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286533A (en) * 1979-08-23 1981-09-01 Sanner Sidney N Catamaran sailboat
US4337714A (en) * 1980-07-07 1982-07-06 Dougherty Frank I Sailboat mast displacement system
FR2552390A1 (en) * 1983-09-23 1985-03-29 Julian Yvon Masts and spars for sail boat
FR2628703A1 (en) * 1988-03-15 1989-09-22 Moulin Olivier Sailing craft with pendulum mainsail - has mainsail mast able to turn about horizontal pivot and lower end moved by carriage on curved guide
US5913493A (en) * 1995-06-16 1999-06-22 Warrior (Aero-Marine) Ltd. Seaplane hull
US6089173A (en) * 1996-02-14 2000-07-18 Lande; Arnold J. Multi-hull watercraft with self-righting capabilities

Also Published As

Publication number Publication date
US20040094080A1 (en) 2004-05-20
ATE325032T1 (en) 2006-06-15
DE60119384D1 (en) 2006-06-08
WO2002049909A1 (en) 2002-06-27
AU2002219303A1 (en) 2002-07-01
EP1353839A1 (en) 2003-10-22
FR2818237A1 (en) 2002-06-21

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