WO2002049909A1 - Device for varying a multihull capsizing torque - Google Patents

Device for varying a multihull capsizing torque Download PDF

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Publication number
WO2002049909A1
WO2002049909A1 PCT/FR2001/003990 FR0103990W WO0249909A1 WO 2002049909 A1 WO2002049909 A1 WO 2002049909A1 FR 0103990 W FR0103990 W FR 0103990W WO 0249909 A1 WO0249909 A1 WO 0249909A1
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WO
WIPO (PCT)
Prior art keywords
platform
multihull
mast
geometric
cooperating
Prior art date
Application number
PCT/FR2001/003990
Other languages
French (fr)
Inventor
David Leon
Original Assignee
David Leon
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 David Leon filed Critical David Leon
Priority to AU2002219303A priority Critical patent/AU2002219303A1/en
Priority to EP01271305A priority patent/EP1353839B1/en
Priority to DE60119384T priority patent/DE60119384D1/en
Priority to US10/451,301 priority patent/US20040094080A1/en
Publication of WO2002049909A1 publication Critical patent/WO2002049909A1/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 
    • 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.
  • heel reduction devices are known for monohulls, they continue to be the subject of developments aimed at enabling their application to multihulls and at increasing their performance, in particular with a view to greater safety. in navigation for this type of ship and many other advantages which will be described later.
  • the object of the invention is to propose a device intended to vary the capsizing torque of a multihull in which the efforts to be exerted by the crew during the straightening of the multihull are also minimized.
  • the subject of the present invention is a device intended to vary the capsizing torque of a multihull consisting of at least two floats connected together by at least two beams designated respectively front link beam and rear link beam, characterized in that it comprises a geometric platform supporting a mast and a crew nacelle and in that said platform is mounted to slide transverse on the multihull to allow, depending on the balance sought by the crew, the movement of the mast and the crew nacelle from one edge to the other of the multihull.
  • the geometrical platform is provided with sliding means of the carriage type capable of cooperating with a transverse guide rail mounted integrally on each of the beams of the multihull.
  • the geometric platform also comprises means allowing its movement, of the hoist and sheet 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 connecting beam and a mast located substantially at the level of the front connecting 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 each being connected by a guy wire to the upper part of the mast thus ensuring adequate maintenance of the latter.
  • these three attachment points represent the ends of a rigid star-shaped structure, the branching zone of the branches of which corresponds to the positioning zone of the mast and two of the three attachment points of which 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 front connecting beam and rear connecting beam equipped with a device intended to vary the capsizing torque according to the any of the above features.
  • the lateral sliding means of the platform consist of a carriage disposed at the front of the platform substantially in line with the mast cooperating with a guide rail mounted on the front connecting beam and two rear carriages cooperating between the platform beam and the rear connecting beam.
  • the means of displacement of the platform on one side or the other of the ship consist of a fixed hoist with double pulley on each float designated left and right hoist, a hoist central also with double pulley secured to the beam of the mobile platform and a single-strand sheet arranged on the pulleys of the different hoists so that an effort in one direction causes the displacement of the platform in the opposite direction.
  • 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 right position and in the extreme left position of the device according to the invention
  • FIGS. 5 and 6 are front views respectively according to 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 Figure 1 on which is shown a mechanism for moving the device, and
  • FIG. 1 to 6 the representation of a multihull in this case a catamaran 12 conventionally consisting of two floats 9 coupled by two transverse connecting beams designated in the following respectively front connecting beam 6 and rear 8.
  • This catamaran 12 is advantageously equipped with a device 14 intended to vary its capsizing torque consisting of the vélique force and the anti-drift force, forces subjected to the boat when it is sailing.
  • this device 14 comprises a geometric 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, depending on the balance sought by the crew, the displacement of the mast 1 and of the crew nacelle 10 from one edge to the other of the multihull, thereby increasing or decreasing the couple of forces tending to capsize the ship.
  • this geometric platform 15 is provided with sliding means, described in more detail in the following description, of the carriages type 7 and 16 capable of cooperating each with a transverse guide rail, not shown, mounted integrally on each beams 6 and 8 of the multihull.
  • the geometric platform 15 comprises a transverse beam 4 cooperating with the rear connecting beam 6 of the catamaran 12 and a mast 1 located substantially in line with 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 attachment points A, B and C each connected by a guy wire 13 at the top of the mast 1.
  • these three fixing points A, B and C represent the ends of a rigid structure 3 in the shape of a star, the branching zone of the branches of which corresponds to the positioning zone of the mast 1 and two of which B and C of the three fixing points are located on the transverse beam 4 of the geometrical platform 15, as shown in FIGS. 2 to 4.
  • This rigid star-shaped structure 3 further supports the symmetrical arrangement of a nacelle 10 or folding seats allowing the crew to sit down, as can be seen in FIG. 1.
  • the geometric platform 15 can take different forms such as those shown diagrammatically in FIGS. 9 and 10, namely two perpendicular beams 17 and 18 or an arrangement of rigid beams 19 having the shape of a rectangle separated by a longitudinal beam 20, one of the ends of which constitutes one A of the three fixing points for the shrouds 13.
  • Each of these structures as well as the star structure 3 is also covered with a trampoline 21 in order to allow possible movements of the crew.
  • This trampoline 21 arranged on the structure 3 in order to form an isosceles triangle offers a large displacement surface for sailors compared to a conventional catamaran. It will also be noted that this displacement surface can be further increased by placing between the front connecting beams 8 and rear 6 a second trampoline 26.
  • the platform 15 may also include a central living 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 in line with the mast 1 cooperating with a guide rail (not shown) mounted on the front connecting beam 8 and two rear carriages 16 cooperating between the beam 4 of the platform 15 and the rear connecting beam 6, as visible in FIGS. 7 and 8.
  • the means for moving the platform 15 to one side or the other of the ship are, for example, made up of a fixed double pulley hoist on each float 9 designated left hoist 22 and right hoist 23, a central hoist 24 also with double pulley secured to the beam 4 of the mobile platform 15 and a single-strand sheet 25 arranged, as explained in FIG. 8, on the pulleys of the different hoists 22, 23 and 24 so that an effort in one direction causes the movement of the platform 15 in the opposite direction.
  • the crew When sailing, the crew, generally made up of four people, may decide, depending on the external conditions, i.e. the intensity of the wind, to move the platform 15 laterally by pulling on one on the sides of the sheet 25 in the desired direction of movement, thus displacing the center of gravity of the vessel 12 and consequently causing a reduction in the float 9 located in the wind or even its exit from the water, which decreases the surface of friction in light wind. Conversely, it will weigh down the same float 9 during stronger winds, in order to find the balance allowing the multihull 12 to increase its speed while retaining a large sail area.
  • the external conditions i.e. the intensity of the wind
  • the lateral displacement of the platform 15 and therefore of the mast 1 makes it possible to position the center of gravity of the boat equipped with such a device above the Archimedes thrust, canceling out by consequently the capsizing couple.
  • a novice navigator will have greater ease in straightening his boat.
  • the device according to the present invention allows the platform 15 to move at least half 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 makes it possible to adjust the weight / power / balance ratios, with the aim: to increase the power in strong wind, to balance the weights according to the wind force, to increase the power in the wind low, to shift the center of gravity to allow self-righting, to navigate comfortably, and to increase crew safety.
  • the mast 1 can include 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)
  • Forklifts And Lifting Vehicles (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transmission Devices (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Threshing Machine Elements (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention concerns a device for varying the capsizing torque of a multihull (12) consisting of at least two floaters (9) linked together by at least two beams respectively called front link beam (8) and rear link beam (6). The invention is characterised in that it comprises a geometrical platform (15) supporting a masting (1) and a crew dinghy (10) and said platform (15) is mounted transversely sliding on the multihull (12) to enable, depending on the equilibrium desired by the crew, the displacement of the masting (1) and the crew dinghy (10) from one side to the other of the multihull (12). The invention also concerns a multihull equipped with such a device.

Description

Dispositif destiné à faire varier le couple de chavirement d'un multicoque Device for varying the capsizing torque of a multihull
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 which remain, despite technological developments, insecure because of their capsizing ease which requires a certain level of knowledge of the navigator in order 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. Furthermore, once capsized, it becomes very difficult for the boat's crew 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 prior art, in particular from US patent 4,337,714, a device making it possible to reduce the heeling of a monohull in order to improve in particular the appearance of the boat. This device consists of a straight track rigidly mounted on the hull and arranged transversely to the longitudinal axis of the hull on which a mast foot is slidably mounted. This mast foot is able to be moved from one edge to the other of the hull by means of a guided sheet 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 this type of heel reduction devices are known for monohulls, they continue to be the subject of developments aimed at enabling their application to multihulls and at increasing their performance, in particular with a view to greater safety. in navigation for this type of ship and many other advantages which 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 object of the invention is to propose a device intended to vary the capsizing torque of a multihull in which the efforts 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.To this end, the subject of the present invention is a device intended to vary the capsizing torque of a multihull consisting of at least two floats connected together by at least two beams designated respectively front link beam and rear link beam, characterized in that it comprises a geometric platform supporting a mast and a crew nacelle and in that said platform is mounted to slide transverse on the multihull to allow, depending on the balance sought by the crew, the movement of the mast and the crew nacelle from one edge 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 the center of gravity of the boat to be displaced. Such a movement may in particular allow the foot of the mast to be moved substantially at one of the floats in one direction and in 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 geometrical platform is provided with sliding means of the carriage type capable of cooperating 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 allowing its movement, of the hoist and sheet 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 constitute a new functionality for the navigator compared to a conventional multihull, allowing it 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 connecting beam and a mast located substantially at the level of the front connecting 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 each being connected by a guy wire to the upper part of the mast thus ensuring adequate 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 rigid star-shaped structure, the branching zone of the branches of which corresponds to the positioning zone of the mast and two of the three attachment points of which 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 front connecting beam and rear connecting beam equipped with a device intended to vary the capsizing torque according to the any of the above features.
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 in line with the mast cooperating with a guide rail mounted on the front connecting beam and two rear carriages cooperating between the platform beam and the rear connecting 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 of displacement of the platform on one side or the other of the ship consist of a fixed hoist with double pulley on each float designated left and right hoist, a hoist central also with double pulley secured to the beam of the mobile platform and a single-strand sheet arranged on the pulleys of the different hoists so that an effort 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 :The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, with reference to the appended drawings in which:
- la figure 1 est une vue de côté d'un catamaran équipé d'un dispositif selon la présente invention,FIG. 1 is a side view of a catamaran equipped with a device according to the present 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,FIGS. 2 to 4 are top views of the catamaran of FIG. 1 respectively in the normal position, in the extreme right position and in the extreme left position of the device according to the invention,
- les figures 5 et 6 sont des vues de face suivant respectivement les positions des figures 2 et 4,FIGS. 5 and 6 are front views respectively according to the positions of FIGS. 2 and 4,
- la figure 7 est une vue en perspective schématique d'un catamaran équipé d'un dispositif selon la présente invention,FIG. 7 is a schematic perspective view of a catamaran equipped with a device according to the present 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- Figure 8 is a schematic rear view of the catamaran according to Figure 1 on which is shown a mechanism for moving the device, and
- les figures 9 et 10 sont des vues de dessus de variantes de réalisation du dispositif.- 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", "aft", "left" and "right" used in the following 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.We can see in Figures 1 to 6, the representation of a multihull in this case a catamaran 12 conventionally consisting of two floats 9 coupled by two transverse connecting beams designated in the following respectively front connecting beam 6 and rear 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 intended to vary its capsizing torque consisting of the vélique force and the anti-drift force, forces subjected to the boat when it is sailing. To this end, according to the present invention, this device 14 comprises a geometric 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, depending on the balance sought by the crew, the displacement of the mast 1 and of the crew nacelle 10 from one edge to the other of the multihull, thereby increasing or decreasing the couple of forces tending to capsize the ship.
Selon un mode de réalisation représenté schématiquement aux figures 7 etAccording to an embodiment shown diagrammatically in FIGS. 7 and
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.8, this geometric platform 15 is provided with sliding means, described in more detail in the following description, of the carriages type 7 and 16 capable of cooperating each with a transverse guide rail, not shown, mounted integrally on each 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 connecting beam 6 of the catamaran 12 and a mast 1 located substantially in line with 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 plateforme 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.To ensure adequate 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 attachment points A, B and C each connected by a guy wire 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 fixing points A, B and C represent the ends of a rigid structure 3 in the shape of a star, the branching zone of the branches of which corresponds to the positioning zone of the mast 1 and two of which B and C of the three fixing points are located on the transverse beam 4 of the geometrical platform 15, as shown in FIGS. 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-shaped structure 3 further supports the symmetrical arrangement of a nacelle 10 or folding seats allowing the crew to sit down, as can be seen in FIG. 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 going beyond the ambit of the invention, it can be seen that the geometric platform 15 can take different forms such as those shown diagrammatically in FIGS. 9 and 10, namely two perpendicular beams 17 and 18 or an arrangement of rigid beams 19 having the shape of a rectangle separated by a longitudinal beam 20, one of the ends of which constitutes one A of the three fixing points for the shrouds 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 as well as the star structure 3 is also covered with a trampoline 21 in order to allow possible movements of the crew. This trampoline 21 arranged on the structure 3 in order to form an isosceles triangle offers a large displacement surface for sailors compared to a conventional catamaran. It will also be noted that this displacement surface can be further increased by placing between the front connecting beams 8 and rear 6 a second trampoline 26.
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 living 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 in line with the mast 1 cooperating with a guide rail (not shown) mounted on the front connecting beam 8 and two rear carriages 16 cooperating between the beam 4 of the platform 15 and the rear connecting beam 6, as visible in FIGS. 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 to one side or the other of the ship are, for example, made up of a fixed double pulley hoist on each float 9 designated left hoist 22 and right hoist 23, a central hoist 24 also with double pulley secured to the beam 4 of the mobile platform 15 and a single-strand sheet 25 arranged, as explained in FIG. 8, on the pulleys of the different hoists 22, 23 and 24 so that an effort in one direction causes the movement of the platform 15 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 intended to vary the capsizing torque of a multihull is already apparent from the description which has been given above and will now be explained in relation to FIGS. 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.When sailing, the crew, generally made up of four people, may decide, depending on the external conditions, i.e. the intensity of the wind, to move the platform 15 laterally by pulling on one on the sides of the sheet 25 in the desired direction of movement, thus displacing the center of gravity of the vessel 12 and consequently causing a reduction in the float 9 located in the wind or even its exit from the water, which decreases the surface of friction in light wind. Conversely, it will weigh down the same float 9 during stronger winds, in order to find the balance allowing the multihull 12 to increase its speed while retaining 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 consequently the mast 1 and the crew, the center of gravity is moved so that the capsizing torque is found to be modular. The probability of capsizing of such a vessel is greatly reduced in favor of significantly improved safety.
En outre, lors d'un éventuel chavirement, le déplacement latéral de la plateforme 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 capsizing, the lateral displacement of the platform 15 and therefore of the mast 1 makes it possible to position the center of gravity of the boat equipped with such a device above the Archimedes thrust, canceling out by consequently the capsizing couple. By such a displacement, 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.It will be noted that the device according to the present invention allows the platform 15 to move at least half 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 makes it possible to adjust the weight / power / balance ratios, with the aim: to increase the power in strong wind, to balance the weights according to the wind force, to increase the power in the wind low, to shift the center of gravity to allow self-righting, to navigate comfortably, and to increase crew safety.
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. Thus the mast 1 can include 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

REVENDICATIONS
1. Dispositif destiné à faire varier le couple de chavirement d'un multicoque (12) constitué d'au moins deux flotteurs (9) reliés ensemble par au moins deux poutres désignées respectivement poutre de liaison avant (8) et poutre de liaison arrière (6), caractérisé en ce qu'il comporte une plate-forme géométrique (15) supportant une mâture (1) et une nacelle d'équipage (10) et en ce que la dite plate-forme (15) est 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 (12).1. Device intended to vary the capsizing torque of a multihull (12) consisting of at least two floats (9) connected together by at least two beams respectively designated front link beam (8) and rear link beam ( 6), characterized in that it comprises a geometric platform (15) supporting a mast (1) and a crew nacelle (10) and in that said platform (15) is mounted with transverse sliding on the multihull (12) to allow, depending on the balance sought by the crew, the movement of the mast (1) and the crew nacelle (10) from one edge to the other of the multihull ( 12).
2. Dispositif selon la revendication 1 , caractérisé en ce que la plateforme géométrique (15) est munie de moyens de coulissement (7, 16) du type chariots aptes à coopérer avec un rail de guidage transversal monté solidaire sur chacune des poutres (6, 8) du multicoque.2. Device according to claim 1, characterized in that the geometric platform (15) is provided with sliding means (7, 16) of the trolley type capable of cooperating with a transverse guide rail mounted integrally on each of the beams (6, 8) multihull.
3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la plate-forme géométrique (15) comporte également des moyens (22, 23, 24 et 25) permettant son déplacement du type palan et écoute coopérant avec les flotteurs (9) du multicoque (12).3. Device according to claim 1 or 2, characterized in that the geometric platform (15) also comprises means (22, 23, 24 and 25) allowing its movement of the hoist type and sheet cooperating with the floats (9) multihull (12).
4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la plate-forme (15) comporte une structure habitable centrale.4. Device according to any one of the preceding claims, characterized in that the platform (15) comprises a central habitable structure.
5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la plate-forme géométrique (15) comporte une poutre transversale (4) coopérant avec la poutre de liaison arrière (6) et une mâture (1) située sensiblement au droit de la poutre de liaison avant (8).5. Device according to one of the preceding claims, characterized in that the geometric platform (15) comprises a transverse beam (4) cooperating with the rear connecting beam (6) and a mast (1) located substantially at right of the front connecting beam (8).
6. Dispositif selon la revendication 4, caractérisé en ce que ladite plate-forme (15) comporte trois points de fixation (A, B et C) disposés selon un triangle isocèle dont la base est parallèle à la poutre transversale (4) de la plateforme (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) assurant ainsi un maintien adéquat cette dernière (1). 6. Device according to claim 4, characterized in that said platform (15) comprises three fixing points (A, B and C) 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) to the upper part of the mast (1) thus ensuring adequate maintenance of the latter (1).
7. Dispositif selon la revendication 5, caractérisé en ce que les 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).7. Device according to claim 5, characterized in that the three fixing points (A, B and C) represent the ends of a rigid structure (3) in the shape of a star whose junction area of the branches corresponds to the mast positioning zone (1) and two of which (B and C) of the three fixing points are located on the transverse beam (4) of the geometric platform (15).
8. Dispositif selon la revendication 6, caractérisé en ce que la structure (3) en étoile est recouverte d'un trampoline (21) assurant à la plateforme géométrique la forme d'un triangle isocèle.8. Device according to claim 6, characterized in that the star structure (3) is covered with a trampoline (21) ensuring the geometric platform the shape of an isosceles triangle.
9. 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 de destiné à faire varier le couple de chavirement selon l'une quelconque des revendications 1 à 9.9. Multihull consisting of at least two floats connected together by at least two beams respectively designated front link beam and rear link beam equipped with a device for varying the capsizing torque according to any one of claims 1 at 9.
10. Multicoque selon la revendication 9, caractérisé en ce que les moyens de coulissement latéral de la plate-forme (15) sont constitués 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 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).10. Multihull according to claim 9, characterized in that the lateral sliding means of the platform (15) consist of a carriage (7) disposed at the front of the platform (15) substantially at right the mast (1) cooperating with a guide rail mounted on the front connecting beam (8) and two rear carriages (16) cooperating between the beam (4) of the platform (15) and the connecting beam rear (6).
11. Multicoque selon la revendication 8 ou 9, caractérisé en ce que les moyens de déplacement de la plate-forme (15) d'un côté ou de l'autre du navire sont 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 agencé 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. 11. Multihull according to claim 8 or 9, characterized in that the means for moving the platform (15) on one side or the other of the ship 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 with double pulley secured to the beam (4) of the mobile platform (15) and a sheet ( 25) with a single strand arranged on the pulleys of the different hoists (22, 23 and 24) so that a force in one direction causes the movement of the platform (15) in the opposite direction.
PCT/FR2001/003990 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque WO2002049909A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2002219303A AU2002219303A1 (en) 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque
EP01271305A EP1353839B1 (en) 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque
DE60119384T DE60119384D1 (en) 2000-12-20 2001-12-14 DEVICE FOR MODIFYING A CENTER OF A MULTI-BOX
US10/451,301 US20040094080A1 (en) 2000-12-20 2001-12-14 Device for varying a multihull capsizing torque

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0016695 2000-12-20
FR0016695A FR2818237A1 (en) 2000-12-20 2000-12-20 SIDE ADJUSTABLE RIG

Publications (1)

Publication Number Publication Date
WO2002049909A1 true WO2002049909A1 (en) 2002-06-27

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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)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (3)

* 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
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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AU2002219303A1 (en) 2002-07-01
DE60119384D1 (en) 2006-06-08
EP1353839A1 (en) 2003-10-22
ATE325032T1 (en) 2006-06-15
US20040094080A1 (en) 2004-05-20
FR2818237A1 (en) 2002-06-21
EP1353839B1 (en) 2006-05-03

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