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EP0527897A1 - Multi-hull sailing vessel. - Google Patents

Multi-hull sailing vessel.

Info

Publication number
EP0527897A1
EP0527897A1 EP91909736A EP91909736A EP0527897A1 EP 0527897 A1 EP0527897 A1 EP 0527897A1 EP 91909736 A EP91909736 A EP 91909736A EP 91909736 A EP91909736 A EP 91909736A EP 0527897 A1 EP0527897 A1 EP 0527897A1
Authority
EP
European Patent Office
Prior art keywords
hulls
hull
boat
boat according
inclination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91909736A
Other languages
German (de)
French (fr)
Other versions
EP0527897B1 (en
Inventor
Daniel Tollet
Marc Labrucherie
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Individual
Original Assignee
Individual
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Publication date
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Publication of EP0527897A1 publication Critical patent/EP0527897A1/en
Application granted granted Critical
Publication of EP0527897B1 publication Critical patent/EP0527897B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • 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

Definitions

  • the present invention relates to a multi-hull boat.
  • the present invention relates to a boat of the last type cited, that is to say of the type comprising at least three parallel hulls, each central hull being shorter than the side hulls, and the front end of each central hull being set back by compared to the front ends of the side shells.
  • the object of the invention is to provide a boat whose performance is improved, while requiring propulsion means of reduced power.
  • each hull has a width which increases continuously from its front end to its rear end.
  • the side walls of each shell are substantially vertical and flat.
  • each shell is substantially flat, and inclined from rear to front and from bottom to top, forming with the horizontal an angle of between 0.5 and 5 °.
  • the flat and inclined bottoms of the different hulls offer resistance to air, which will achieve their level of dynamic lift.
  • the angle of these bottoms is advantageously between 1 and 3 °.
  • the face of the floor covering the shells, facing downward is inclined from rear to front and from top to bottom.
  • the face of the floor facing down is substantially parallel to the bottom of the shells. It follows from this last characteristic that the height of the tunnel formed between two adjacent shells decreases from front to rear, which further increases the phenomenon of air compression always with a view to improving aerodynamic lift.
  • each hull is connected to each side wall thereof, by a flat surface of intermediate inclination, forming a chamfer, the height of this inclined surface decreasing regularly from the rear to the front as a function of the inclination of the bottom, until it vanishes at the front end of the hull . It follows from this characteristic that it is the height of the chamfer which determines the inclination of the bottom of each shell.
  • the rear ends of the different hulls are aligned in the same plane transverse to the axis of the boat, and the cross section of the different hulls is the same over the entire length of the latter, up to the end before the shortest hulls.
  • This structure facilitates the realization of the boat, since all the hulls are identical from their rear end to the level of the front end of the shortest hulls, the side hulls simply extending relative to the other hulls, by an area which is more tapered.
  • each tunnel formed between two hulls is equipped with a flap which, articulated at its front end about a horizontal axis, under the connecting floor between the hulls and substantially at mid-length of the boat, is associated to means for adjusting its inclination.
  • Each shutter which can be actuated for example by a jack allows, if necessary is to reinforce the action which results from the inclination of the floors connecting the shells.
  • This boat which may for example have four hulls, or even a larger number of hulls is advantageous taking into account the lift characteristics which it presents, and which make it possible to limit the power of the motorization.
  • They can be conventional propellants or hydrojet type surface propellants. Given the volumes available inside the hulls and the lightness of the assembly, the boat can be made unsinkable by placing an expanded material inside the hulls, for example at thirty kilos per m3.
  • This type of boat is just as suitable for pleasure craft as it is for star type boats for the transport of passengers or commercial boats for the transport of vehicles or containers.
  • FIG. 1 is a side view
  • Figure 2 is a front view from the front
  • Figure 3 is a front view from the rear
  • Figure is a sectional view along the line IV-IV of figure 1.
  • the boat represented in the drawing comprises four identical hulls two by two, namely two lateral hulls 2 and two central hulls (3).
  • the lateral (2) and central (3) shells have posterior ends which are arranged in the same plane transverse to the axis of the boat.
  • each lateral (2) or central (3) shell has a triangular shape in cross-section through a horizontal plane, its width increasing from its front end to its rear end.
  • the two side walls () are substantially vertical and planar.
  • the bottom (5) of each shell is substantially flat and inclined from rear to front and from bottom to top, forming with the horizontal an angle of between 0.5 and 5 °, and preferably between 1 and 3 °.
  • the bottom 5 of each shell is connected to the two side walls ( ⁇ ) thereof by a flat surface (6) of intermediate inclination forming a chamfer, the height of this surface (6) decreasing regularly from the rear to the forward depending on the inclination of the bottom.
  • the cross section of the different hulls (2,3) is the same over the entire length of these until the front end of the shortest hulls. .
  • the different shells are assembled to each other by couples, and by a floor (8) whose face turned downward is inclined from rear to front and from bottom to top.
  • This characteristic participates with the widening of the hulls from front to rear to reduce the section of air passage between the hulls, which promotes the phenomenon of lift.
  • the boat which has been represented in the drawing has superstructures corresponding to those of a speedboat, but could just as easily have other superstructures, for example insofar as it would be intended to collect it on the surface of the water. pollution waste in which case it would be advisable to have shutters at the level of the tunnels to collect the waste, and transfer it to settling tanks which can be located for example on a beach provided at the rear of the boat.
  • the invention brings a great improvement to the existing technique by providing a boat of simple design, offering very high performance, with a motorization of reduced power. This results in savings both in terms of manufacturing and in terms of operation and maintenance.
  • the number of hulls could be different, the main thing being that the central hulls are shorter than the lateral hulls to ensure this funneling phenomenon which channels the air towards the tunnels formed between the hulls or else that the tunnels could be limited in the upper part by hinged flaps, without departing from the scope of the invention.

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  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Secondary Cells (AREA)
  • Wind Motors (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Luminescent Compositions (AREA)
  • Catching Or Destruction (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Toys (AREA)
  • Helmets And Other Head Coverings (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Cosmetics (AREA)
  • Body Structure For Vehicles (AREA)
  • Superconductive Dynamoelectric Machines (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

A multi-hulled boat has at least three hulls, with the outside hulls extending forward beyond the central or inside hull or hulls. The hulls are tapered with a cross-sectional configuration that increases in side front to rear, thus forming a channel or tunnel between adjacent hulls which decreases in cross-sectional size front to rear. Air entering the tunnels is compressed, thus imparting a lifting force to the hulls lifting the hulls partially out of the water to decrease the hydraulic drag on the hulls. The hulls have identical cross-sectional areas at identical transverse planar sections thereof. The bottom of each hull is flat and inclined at an angle with the horizontal. The hull bottoms join the hull sides at a chamfer which increases in size front to rear. Shutters or flaps may be used to partially or fully close off the tunnels between the hulls to control airflow or to trap water-borne material to be collected and recycled.

Description

BATEAU MULTI-COQUES La présente invention a pour objet un bateau multi-coques. Il existe déjà des bateaux comportant plusieurs coques parallèles. Les bateaux à deux coques sont appelés "catamarans". Il existe également des bateaux à trois coques, encore appelés trimarans, dans lesquels la coque centrale est plus longue que les coques latérales, ces coques latérales jouant en fait beaucoup plus le rôle de flotteurs de stabilisation que réellement de coques. The present invention relates to a multi-hull boat. There are already boats with several parallel hulls. Two hull boats are called "catamarans". There are also boats with three hulls, also called trimarans, in which the central hull is longer than the side hulls, these side hulls actually playing much more the role of stabilization floats than actually hulls.
Il est également connu par le brevet français 2 586 001 de réaliser un bateau comportant quatre coques, dont les coques centrales sont plus courtes que les coques latérales. Une telle structure permet d'améliorer les performances du bateau tout en réduisant le tirant d'eau de celui-ci et en améliorant sa stabilité.It is also known from French patent 2,586,001 to make a boat comprising four hulls, the central hulls of which are shorter than the lateral hulls. Such a structure makes it possible to improve the performance of the boat while reducing the draft thereof and improving its stability.
La présente invention concerne un bateau du dernier type cité, c'est à dire du type comprenant au moins trois coques parallèles, chaque coque centrale étant plus courte que les coques latérales, et l'extrémité avant de chaque coque centrale étant disposée en retrait par rapport aux extrémités avant des coques latérales. Le but de l'invention est de fournir un bateau dont les performances soient améliorées, tout en nécessitant des moyens de propulsion de puissance réduite.The present invention relates to a boat of the last type cited, that is to say of the type comprising at least three parallel hulls, each central hull being shorter than the side hulls, and the front end of each central hull being set back by compared to the front ends of the side shells. The object of the invention is to provide a boat whose performance is improved, while requiring propulsion means of reduced power.
A cet effet, dans le bateau qu'elle concerne, chaque coque possède une largeur qui augmente de façon continue de son extrémité avant jusqu'à son extrémité arrière.To this end, in the boat to which it relates, each hull has a width which increases continuously from its front end to its rear end.
Avantageusement et selon une autre caractéristique de l'invention, les parois latérales de chaque coque sont sensiblement verticales et planes.Advantageously and according to another characteristic of the invention, the side walls of each shell are substantially vertical and flat.
Le fait que les coques latérales soient plus longues que les coques centrales et dépassent de celles-ci à l'avant du bateau assure la formation d'une espèce d'entonnoir, forçant l'air à s'engouffrer à l'intérieur des tunnels délimités entre les différentes coques. Du fait que la section de passage de ces tunnels se réduit de l'avant vers l'arrière, la pression d'air augmente de l'avant vers l'arrière, assurant une excellente sustentation de l'embarcation, favorisant le déjaugeage de celle-ci, ce qui limite la valeur du volume immergé, et permet par conséquent d'obtenir d'excellentes performances avec une motorisation tout à fait réduite. Selon une autre caractéristique de l'invention, le fond de chaque coque est sensiblement plat, et incliné de l'arrière vers l'avant et de bas en haut en formant avec l'horizontale un angle compris entre 0,5 et 5°. Compte-tenu de cette inclinaison du fond des coques, lorsque le bateau commence à déjauger sous l'action de la vitesse, les fonds plats et inclinés des différentes coques offrent une résistance à l'air, qui va réaliser à leur niveau de portance dynamique. L'angle de ces fonds est avantageusement compris entre 1 et 3°. En outre, avantageusement, la face du plancher recouvrant les coques, tournée vers le bas est inclinée de l'arrière vers l'avant et de haut en bas. De préférence la face du plancher tournée vers le bas est sensiblement parallèle au fond des coques. Il résulte de cette dernière caractéristique que la hauteur du tunnel ménagé entre deux coques adjacentes diminue de l'avant vers l'arrière, ce qui augmente encore le phénomène de compression de l'air toujours en vue d'une amélioration de la portance aérodynamique. Il doit être noté que cette compression est accompagnée d'un écoulement parfaitement laminaire, compte-tenu des formes générales des coques définies précédem¬ ment. Afin de faciliter la fabrication des coques, et d'offir à celles-ci de bonnes capacités d'amortissement vis-à-vis de l'eau, le fond de chaque coque est relié à chaque paroi latérale de celle-ci, par une surface plane d'inclinaison intermédiaire, formant un chanfrein, la hauteur de cette surface inclinée diminuant régulièrement de l'arrière vers l'avant en fonction de l'inclinaison du fond, jusqu'à s'annuler à l'extrémité avant de la coque. Il résulte de cette caractéristique que c'est la hauteur du chanfrein qui détermine l'inclinaison du fond de chaque coque.The fact that the side hulls are longer than the central hulls and protrude from them at the front of the boat ensures the formation of a kind of funnel, forcing the air to rush inside the tunnels demarcated between the different hulls. Because the passage section of these tunnels is reduced from front to rear, the air pressure increases from front to rear, ensuring excellent lift of the boat, favoring the planing of that -ci, which limits the value of the submerged volume, and therefore allows to obtain excellent performance with a completely reduced engine. According to another characteristic of the invention, the bottom of each shell is substantially flat, and inclined from rear to front and from bottom to top, forming with the horizontal an angle of between 0.5 and 5 °. Given this inclination of the bottom of the hulls, when the boat begins to plan under the action of speed, the flat and inclined bottoms of the different hulls offer resistance to air, which will achieve their level of dynamic lift. The angle of these bottoms is advantageously between 1 and 3 °. In addition, advantageously, the face of the floor covering the shells, facing downward, is inclined from rear to front and from top to bottom. Preferably the face of the floor facing down is substantially parallel to the bottom of the shells. It follows from this last characteristic that the height of the tunnel formed between two adjacent shells decreases from front to rear, which further increases the phenomenon of air compression always with a view to improving aerodynamic lift. It should be noted that this compression is accompanied by perfectly laminar flow, taking into account the general shapes of the shells defined previously. In order to facilitate the manufacture of the hulls, and to offer them good damping capacities with respect to water, the bottom of each hull is connected to each side wall thereof, by a flat surface of intermediate inclination, forming a chamfer, the height of this inclined surface decreasing regularly from the rear to the front as a function of the inclination of the bottom, until it vanishes at the front end of the hull . It follows from this characteristic that it is the height of the chamfer which determines the inclination of the bottom of each shell.
Selon une caractéristique avantageuse, les extrémités arrières des différentes coques sont alignées dans un même plan transversal à l'axe du bateau, et la section transversale des différentes coques est la même sur toute la longueur de celles-ci, jusqu'à l'extrémité avant des coques les plus courtes. Cette structure facilite la réalisation du bateau, puisque toutes les coques sont identiques depuis leur extrémité arrière jusqu'au niveau de l'extrémité avant des coques les plus courtes, les coques latérales se prolongeant simplement par rapport aux autres coques, par une zone qui est plus effilée.According to an advantageous characteristic, the rear ends of the different hulls are aligned in the same plane transverse to the axis of the boat, and the cross section of the different hulls is the same over the entire length of the latter, up to the end before the shortest hulls. This structure facilitates the realization of the boat, since all the hulls are identical from their rear end to the level of the front end of the shortest hulls, the side hulls simply extending relative to the other hulls, by an area which is more tapered.
Conformément à une possibilité, chaque tunnel ménagé entre deux coques est équipé d'un volet qui, articulé à son extrémité avant autour d'un axe horizontal, sous le plancher de liaison entre les coques et sensiblement à mi-longueur du bateau, est associé à des moyens de réglage de son inclinaison.According to one possibility, each tunnel formed between two hulls is equipped with a flap which, articulated at its front end about a horizontal axis, under the connecting floor between the hulls and substantially at mid-length of the boat, is associated to means for adjusting its inclination.
Chaque volet qui peut être actionné par exemple par un vérin permet, si besoin est de renforcer l'action qui résulte de l'inclinaison des planchers reliant les coques.Each shutter which can be actuated for example by a jack allows, if necessary is to reinforce the action which results from the inclination of the floors connecting the shells.
Ce bateau qui peut comporter par exemple quatre coques, ou encore un nombre de coques plus important est avantageux compte-tenu des caractéris¬ tiques de sustentation qu'il présente, et qui permettent de limiter la puissance de la motorisation. En outre, il faut noter qu'il est avantageux de multiplier le nombre de moteur, qui sont des moteurs de faible puissance en en plaçant un dans chaque coque, ce qui de surcroit offre une sécurité parfaite puisqu'en cas de panne de l'un des moteurs, l'embarcation peut poursuivre sa route à l'aide des autres moteurs. Il peut s'agir de propulseurs par hélices classiques ou de propulseurs de surface de type hydrojet. Compte-tenu des volumes disponibles à l'intérieur des coques et de la légèreté de l'ensemble, l'embarcation peut être rendue insubmersible en plaçant à l'intérieur des coques un matériau expansé par exemple à trente kilos par m3.This boat which may for example have four hulls, or even a larger number of hulls is advantageous taking into account the lift characteristics which it presents, and which make it possible to limit the power of the motorization. In addition, it should be noted that it is advantageous to multiply the number of engines, which are low power engines by placing one in each hull, which in addition offers perfect security since in the event of a breakdown of the one of the engines, the boat can continue its course using the other engines. They can be conventional propellants or hydrojet type surface propellants. Given the volumes available inside the hulls and the lightness of the assembly, the boat can be made unsinkable by placing an expanded material inside the hulls, for example at thirty kilos per m3.
Ce type d'embarcation s'adresse tout aussi bien aux embarcations de plaisance, qu'à des embarcations de type vedette pour le transport de passagers ou à des embarcations à vocation commerciale pour le transport de véhicules ou de conteneurs. Dans tous les cas, l'embarcation déjauge à une vitesse de l'ordre de 15 noeuds, au delà de laquelle la surface mouillée est fortement réduite puisque la longueur à la flottaison en période de navigation est réduite des 2/3.This type of boat is just as suitable for pleasure craft as it is for star type boats for the transport of passengers or commercial boats for the transport of vehicles or containers. In all cases, the boat planes at a speed of the order of 15 knots, beyond which the wetted surface is greatly reduced since the length at the waterline during navigation is reduced by 2/3.
Il est également d'envisager d'autres applications de cette embarcation, par exemple dans le cadre de la lutte contre la pollution, en mettant à profit les tunnels ménagés entre les différentes coques pour récupérer à l'aide de volets pivotants autour de leur bord arrière des déchets susceptibles de flotter en surface, et en récupérant ceux-ci dans des bacs de décantation disposés sur la plage arrière de l'embarcation.It is also to consider other applications of this boat, for example in the context of the fight against pollution, by taking advantage of the tunnels made between the different hulls to recover using pivoting shutters around their edge. aft of waste likely to float on the surface, and recovering it in settling tanks placed on the aft deck of the boat.
De toute façon l'invention sera bien comprise à l'aide de la description qui suit en référence aux dessins schématiques annexés représentant, à titre d'exemple non limitatif, une forme d'exécution de ce bateau dans le cas de son application à la réalisation d'une vedette, figure 1 en est une vue de côté, figure 2 en est une vue de face de l'avant, figure 3 en est une vue de face de l'arrière, figure en est une vue en coupe selon la ligne IV-IV de figure 1. Le bateau représenté au dessin comprend quatre coques identiques deux à deux, à savoir deux coques latérales 2 et deux coques centrales (3). Les coques latérales (2) et centrales (3) comportent des extrémités postérieures qui sont disposées dans un même plan transversal à l'axe du bateau. Comme montré au dessin chaque coque latérale (2) ou centrale (3) possède vue en coupe par un plan horizontal une forme triangulaire, sa largeur augmentant depuis son extrémité avant jusqu'à son extrémité arrière. En outre, comme montré notamment à la figure 3, les deux parois latérales ( ) sont sensiblement verticales et planes.In any case, the invention will be better understood with the aid of the description which follows with reference to the appended schematic drawings representing, by way of nonlimiting example, an embodiment of this boat in the case of its application to the embodiment of a speedboat, Figure 1 is a side view, Figure 2 is a front view from the front, Figure 3 is a front view from the rear, Figure is a sectional view along the line IV-IV of figure 1. The boat represented in the drawing comprises four identical hulls two by two, namely two lateral hulls 2 and two central hulls (3). The lateral (2) and central (3) shells have posterior ends which are arranged in the same plane transverse to the axis of the boat. As shown in the drawing, each lateral (2) or central (3) shell has a triangular shape in cross-section through a horizontal plane, its width increasing from its front end to its rear end. In addition, as shown in particular in Figure 3, the two side walls () are substantially vertical and planar.
Selon une autre caractéristique de l'invention, le fond (5) de chaque coque est sensiblement plat et incliné de l'arrière vers l'avant et de bas en haut en formant avec l'horizontal un angle compris entre 0,5 et 5°, et de préférence entre 1 et 3°. Le fond 5 de chaque coque est relié aux deux parois latérales (< ) de celle-ci par une surface plane (6) d'inclinaison intermédiaire formant un chanfrein, la hauteur de cette surface (6) diminuant régulièrement de l'arrière vers l'avant en fonction de l'inclinaison du fond. Il résulte de ces formes que les coques sont facilement réalisables, et à bon marché par exemple en alliage métallique de faible densité tel qu'un alliage d'aluminium.According to another characteristic of the invention, the bottom (5) of each shell is substantially flat and inclined from rear to front and from bottom to top, forming with the horizontal an angle of between 0.5 and 5 °, and preferably between 1 and 3 °. The bottom 5 of each shell is connected to the two side walls (<) thereof by a flat surface (6) of intermediate inclination forming a chamfer, the height of this surface (6) decreasing regularly from the rear to the forward depending on the inclination of the bottom. It follows from these forms that the shells are easily achievable, and inexpensive, for example in low density metal alloy such as an aluminum alloy.
De façon connue en soi, les coques sont maintenues en forme par un certain nombre de couples transversaux (7) dont certains ont été schématisés à la figure < .In a manner known per se, the shells are held in shape by a number of transverse couples (7), some of which have been shown diagrammatically in FIG.
Pour simplifier la fabrication il est doit être noté que, comme montré à la figure la section transversale des différentes coques (2,3) est la même sur toute la longueur de celles-ci jusqu'à l'extrémité avant des coques les plus courtes. Cela permet de standardiser la fabrication, les deux coques latérales (2) étant simplement munies par rapport aux coques centrales (3) d'un prolongement effilé vers l'avant. Les différentes coques sont assemblées les unes aux autres par des couples, et par un plancher (8) dont la face tournée vers le bas est inclinée de l'arrière vers l'avant et de bas en haut.To simplify manufacture, it should be noted that, as shown in the figure, the cross section of the different hulls (2,3) is the same over the entire length of these until the front end of the shortest hulls. . This makes it possible to standardize the manufacture, the two side shells (2) being simply provided with respect to the central shells (3) of a tapered extension forward. The different shells are assembled to each other by couples, and by a floor (8) whose face turned downward is inclined from rear to front and from bottom to top.
Cette caractéristique participe avec l'élargissement des coques de l'avant vers l'arrière à réduire la section de passage de l'air entre les coques, ce qui favorise le phénomène de sustentation.This characteristic participates with the widening of the hulls from front to rear to reduce the section of air passage between the hulls, which promotes the phenomenon of lift.
Le bateau qui a été représenté au dessin possède des superstructures correspondantes à celles d'une vedette, mais pourrait tout aussi bien posséder d'autres superstructures, par exemple dans la mesure où il serait destiné à un recueillir à la surface de l'eau des déchets de pollution auquel cas il conviendrait de disposer de volets au niveau des tunnels pour recueillir les déchets, et les transférer vers des bacs de décantation pouvant être situés par exemple sur une plage ménagée à l'arrière du bateau. Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante en fournissant un bateau de conception simple, offrant de très hautes performances, avec une motorisation de puissance réduite. Il en résulte une économie tant au niveau de la fabrication qu'au niveau de l'exploitation et la maintenance.The boat which has been represented in the drawing has superstructures corresponding to those of a speedboat, but could just as easily have other superstructures, for example insofar as it would be intended to collect it on the surface of the water. pollution waste in which case it would be advisable to have shutters at the level of the tunnels to collect the waste, and transfer it to settling tanks which can be located for example on a beach provided at the rear of the boat. As is apparent from the above, the invention brings a great improvement to the existing technique by providing a boat of simple design, offering very high performance, with a motorization of reduced power. This results in savings both in terms of manufacturing and in terms of operation and maintenance.
Comme il va de soi l'invention ne se limite pas à la seule forme d'exécution de ce bateau décrite ci-dessus à titre d'exemple elle en embrasse au contraire toutes les variantes de réalisation.As it goes without saying, the invention is not limited to the sole embodiment of this boat described above by way of example, on the contrary it embraces all of the variant embodiments thereof.
C'est ainsi notamment que le nombre de coques pourrait être différent, l'essentiel étant que les coques centrales soient plus courtes que les coques latérales pour assurer ce phénomène d'entonnoir qui canalise l'air vers les tunnels ménagés entre les coques ou encore que les tunnels pourraient être limités en partie supérieure par des volets articulés, sans que l'on sorte pour autant du cadre de l'invention. Thus, in particular, the number of hulls could be different, the main thing being that the central hulls are shorter than the lateral hulls to ensure this funneling phenomenon which channels the air towards the tunnels formed between the hulls or else that the tunnels could be limited in the upper part by hinged flaps, without departing from the scope of the invention.

Claims

REVENDICATIONS
1. Bateau multi-coques, du type comprenant au moins trois coques parallèles, chaque coque centrale (3) étant plus courte que les coques latérales (2), et l'extrémité avant de chaque coque centrale étant disposée en retrait par rapport aux extrémités avant des coques latérales, caractérisé en ce que chaque coque (2,3) possède une largeur qui augmente de façon continue de son extrémité avant jusqu'à son extrémité arrière.1. Multihull boat, of the type comprising at least three parallel hulls, each central hull (3) being shorter than the side hulls (2), and the front end of each central hull being recessed with respect to the ends before the side hulls, characterized in that each hull (2,3) has a width which increases continuously from its front end to its rear end.
2. Bateau selon la revendication 1, caractérisé en ce que les parois latérales ( ) de chaque coque sont sensiblement verticales et planes. 3. Bateau selon l'une quelconque des revendications 1 et 2 caractérisé en ce que le fond (5) de chaque coque (2,3) est sensiblement plat, et incliné de l'arrière vers l'avant et de bas en haut en formant avec l'horizontale un angle compris entre 0,5 et 5°. . Bateau selon l'ensemble des revendications 2 et 3, caractérisé en ce que le fond de chaque coque (2,3) est relié à chaque paroi latérale ( ) de celle-ci, par une surface plane (6) d'inclinaison intermédiaire, formant un chanfrein, la hauteur de cette surface inclinée (6), diminuant régulièrement de l'arrière vers l'avant en fonction de l'inclinaison du fond, jusqu'à s'annuler à l'extrémité avant de la coque. 5. Bateau selon l'une quelconque des revendications 1 à <-. , caractérisé en ce que la face (7) du plancher recouvrant les coques (2,3), tournée vers le bas est inclinée de l'arrière vers l'avant et de haut en bas.2. Boat according to claim 1, characterized in that the side walls () of each hull are substantially vertical and flat. 3. Boat according to any one of claims 1 and 2 characterized in that the bottom (5) of each hull (2,3) is substantially flat, and inclined from rear to front and from bottom to top. forming with the horizontal an angle between 0.5 and 5 °. . Boat according to all of claims 2 and 3, characterized in that the bottom of each hull (2,3) is connected to each side wall () thereof, by a flat surface (6) of intermediate inclination, forming a chamfer, the height of this inclined surface (6), decreasing regularly from the rear to the front as a function of the inclination of the bottom, until it disappears at the front end of the hull. 5. Boat according to any one of claims 1 to <-. , characterized in that the face (7) of the floor covering the shells (2,3), facing downwards, is inclined from rear to front and from top to bottom.
6. Bateau selon l'ensemble des revendications 3 et 5, caractérisé en ce que la face du plancher tournée vers le bas est sensiblement parallèle au fond des coques.6. Boat according to all of claims 3 and 5, characterized in that the face of the floor facing down is substantially parallel to the bottom of the hulls.
7. bateau selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les extrémités arrières des différentes coques (2,3), sont alignées dans un même plan transversal à l'axe du bateau, et en ce que la section transversale des différentes coques (2,3) est la même sur toute la longueur de celles-ci, jusqu'à l'extrémité avant des coques les plus courtes.7. boat according to any one of claims 1 to 6, characterized in that the rear ends of the different hulls (2,3) are aligned in the same plane transverse to the axis of the boat, and in that the section transverse of the different hulls (2,3) is the same over the entire length thereof, up to the front end of the shortest hulls.
8. Bateau selon l'une quelconque des revendications 1 à 7, caractérisé en ce que chaque tunnel ménagé entre deux coques (2,3) est équipé d'un volet qui, articulé à son extrémité avant autour d'un axe horizontal, sous le plancher de liaison entre les coques et sensiblement à mi-longueur du bateau, est associé à des moyens de réglage de son inclinaison.8. Boat according to any one of claims 1 to 7, characterized in that each tunnel formed between two hulls (2,3) is equipped with a flap which, articulated at its front end around a horizontal axis, under the connecting floor between the hulls and approximately halfway along the length of the boat, is associated with means for adjusting its inclination.
9. Bateau selon l'une quelconque des revendications 1 à 8, caractérisé en ce que chaque tunnel est équipé dans sa partie avant d'éléments tels que volets articulés autour de leur bord postérieur formant un plan incliné de l'avant vers l'arrière et de bas en haut pour la récupération d'éléments de pollution à la surface de l'eau. 9. Boat according to any one of claims 1 to 8, characterized in that each tunnel is equipped in its front part with elements such as flaps articulated around their rear edge forming an inclined plane from front to back and from bottom to top for the recovery of pollution elements on the surface of the water.
EP91909736A 1990-05-07 1991-05-03 Multi-hull sailing vessel Expired - Lifetime EP0527897B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9006193 1990-05-07
FR9006193A FR2661652B1 (en) 1990-05-07 1990-05-07 MULTI-HULL BOAT.
PCT/FR1991/000370 WO1991017079A1 (en) 1990-05-07 1991-05-03 Multi-hull sailing vessel

Publications (2)

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EP0527897A1 true EP0527897A1 (en) 1993-02-24
EP0527897B1 EP0527897B1 (en) 1995-01-11

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US (1) US5191849A (en)
EP (1) EP0527897B1 (en)
JP (2) JPH05505579A (en)
AT (1) ATE116922T1 (en)
AU (2) AU7891491A (en)
CA (2) CA2082402A1 (en)
DE (1) DE69106702T2 (en)
DK (1) DK0527897T3 (en)
ES (1) ES2069887T3 (en)
FI (1) FI925058A0 (en)
FR (1) FR2661652B1 (en)
GR (1) GR3015803T3 (en)
NO (1) NO924282L (en)
WO (1) WO1991017079A1 (en)

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Also Published As

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DE69106702D1 (en) 1995-02-23
NO924282D0 (en) 1992-11-06
FR2661652B1 (en) 1992-11-13
WO1991017079A1 (en) 1991-11-14
AU7891491A (en) 1991-11-27
JPH05505579A (en) 1993-08-19
CA2041548C (en) 1996-07-16
DE69106702T2 (en) 1995-08-31
JPH0656066A (en) 1994-03-01
CA2082402A1 (en) 1991-11-08
NO924282L (en) 1992-12-09
GR3015803T3 (en) 1995-07-31
FI925058A (en) 1992-11-06
FI925058A0 (en) 1992-11-06
US5191849A (en) 1993-03-09
FR2661652A1 (en) 1991-11-08
DK0527897T3 (en) 1995-06-19
EP0527897B1 (en) 1995-01-11
ATE116922T1 (en) 1995-01-15
CA2041548A1 (en) 1991-11-08
ES2069887T3 (en) 1995-05-16
AU7640491A (en) 1991-11-07

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