FR2537535A1 - X-shaped connection for multihull - Google Patents

X-shaped connection for multihull Download PDF

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Publication number
FR2537535A1
FR2537535A1 FR8221080A FR8221080A FR2537535A1 FR 2537535 A1 FR2537535 A1 FR 2537535A1 FR 8221080 A FR8221080 A FR 8221080A FR 8221080 A FR8221080 A FR 8221080A FR 2537535 A1 FR2537535 A1 FR 2537535A1
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France
Prior art keywords
floats
multihull
beams
connection
box
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Granted
Application number
FR8221080A
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French (fr)
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FR2537535B1 (en
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Individual
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Individual
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Publication date
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Priority to FR8221080A priority Critical patent/FR2537535B1/en
Publication of FR2537535A1 publication Critical patent/FR2537535A1/en
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Publication of FR2537535B1 publication Critical patent/FR2537535B1/en
Expired 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
    • B63B1/125—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising more than two hulls

Abstract

The invention relates to a type of connection between the floats of a multihull. The type of connection is characterised by an X-shaped geometry which makes possible better adaptation to the directions of certain stresses encountered by multihulls. This invention relates to all sailing craft equipped with a number of interconnected floats. Toys, beach craft and boats can be mentioned.

Description

. L'invention concerne une géométrie nouvelle de liaison entre les différents flotteurs des bateaux multicoques. . The invention relates to a new geometry of connection between the different floats of multihull boats.

f Jusqu'à maintenant les deux flotteurs d'un catamaran ou les trois flotteurs dtan trimaran sont reliés entré eux par une à trois poutres de liaison placées perpendiculairement à l'axe longitudinal du bateau. Cette configuration horizontale en rectangle (2 à 3 poutres) ou de croix (1 poutre) est trbs mal adaptée à une bonne résistance des multicoques aux efforts de cisaillement entre flotteurs et de torsion diagonale. Quelques multicoques ont cassé ou ont gravement endommagé leurs structures à la suite de tels efforts. D'autres multicoques possèdent de vastes plates-formes (ou aile) de liaison plus satisfaisantes vis-à-vis de ces efforts mais en contrepartie très lourdes. f Up to now the two floats of a catamaran or the three dtan trimaran floats are connected to each other by one to three connecting beams placed perpendicular to the longitudinal axis of the boat. This horizontal configuration in rectangle (2 to 3 beams) or cross (1 beam) is very ill-suited to good resistance of multihulls to shear forces between floats and diagonal torsion. Some multihulls have broken or severely damaged their structures as a result of such efforts. Other multihulls have large connecting platforms (or wing) which are more satisfactory with regard to these efforts but in return very heavy.

. Le dispositif selon l'invention permet de résoudre ces problèmes posés de résistance et de poids, en un seul système de liaison. Il consiste en une liaison de forme en X. . The device according to the invention makes it possible to solve these problems of resistance and weight, in a single connection system. It consists of an X shape bond.

GrEce au pied qu'il présente à la jonction sur les flotteurs et à la direction privilégiée des parties travaillantes, le
X résiste beaucoup mieux aux efforts de cisaillement et de torsion respectivement. Cette meilleure résistance est obtenue avec un minimum de surface développée et donc de poids,
. Le X peut tre présenté tel quel ou être habillé d'un carénage adoucissant ses formes ou servir au renforcement interne d'un caisson de liaison de forme quelconque.Thanks to the foot which it presents at the junction on the floats and the privileged direction of the working parts, the
X withstands shear and torsional forces much better. This better resistance is obtained with a minimum of developed surface and therefore of weight,
. The X can be presented as is or be dressed in a fairing softening its shapes or be used for the internal reinforcement of a connection box of any shape.

. Cette liaison en X peut s'appliquer sur les deux flotteurs d'un catamaran (2 flotteurs) ou sur un trimaran (3 flotteurs). sur les deux flotteurs externes ou sur l'un des flotteurs externes et le flotteur central. . This X connection can be applied to the two floats of a catamaran (2 floats) or to a trimaran (3 floats). on the two external floats or on one of the external floats and the central float.

Cette liaison en X peut être employée en plusieurs endroits du bateau ou aussi en combinaison avec des poutres transversales classiques. This X connection can be used in several places on the boat or also in combination with conventional transverse beams.

L'angle d'ouverture du X varie selon les besoins pratiques ou esthétiques entre 50 et 1750.  The opening angle of the X varies according to practical or aesthetic needs between 50 and 1750.

Enfin l'ensemble du X peut présenter la. particula- rité d'8tre repliable transversalement autour de son axe central pour certains bateaux qui le nécessitent.  Finally the whole of the X can present the. the particularity of being foldable transversely around its central axis for certain boats which require it.

La planche annexée N0 1 représente la liaison en X vue de dessus. The attached plate N0 1 represents the connection in X seen from above.

La planche annexée Ne 2 représente quelques modes de réalisation du X selon des poutres s'imbriquant (fig. 2), se superposant (fig. 3) ou un caisson en X (fig. 4). The attached plate Ne 2 represents some embodiments of the X according to overlapping beams (fig. 2), superimposed (fig. 3) or an X-shaped box (fig. 4).

La planche annexée N0 3 montre quelques exemples d'usage de la liaison en X : en combinaison avec des poutres classiques (fig. 5) ou sur un trimaran (fig. 6) et (fig. 7). The attached plate N0 3 shows some examples of the use of the X-shaped connection: in combination with conventional beams (fig. 5) or on a trimaran (fig. 6) and (fig. 7).

Selon une forme de réalisation préférentielle, le X est formé de deux poutres. Elles peuvent ttre en tout matériau et de toutes formes. Le X peut être composé d'une poutre avant et d'une poutre arrière accolées. Le X peut entre aussi réalisé par deux poutres se superposant et reprises entre elles, ou s'imbriquant l'une dans l'autre Un caisson de liaison peut aussi prendre la forme d'un X. Enfin le système peut ttre rEali- sé selon des poutres axées en X et partant d'un caisson central. According to a preferred embodiment, the X is formed of two beams. They can be of any material and of any shape. The X can be composed of a front beam and a back beam joined. The X can also be produced by two beams overlapping and overlapping with each other, or overlapping one inside the other. A connection box can also take the form of an X. Finally, the system can be made according to beams centered in X and starting from a central box.

. Le dispositif selon l'invention est particulièrement destiné à améliorer le rapport poids/resistance de tous les engins navigants multicoques. Cela peut peut entre le cas de jouets, d'engins de plage et de bateaux de toutes tailles à propulsion vélique, motorisée ou humaine.  . The device according to the invention is particularly intended to improve the weight / resistance ratio of all multihull seagoing vehicles. This can be between the case of toys, beach gear and boats of all sizes with vélique, motorized or human propulsion.

Claims (9)

REVENDICATIONS 1 - Dispositif pour liaison de flotteurs de bateaux multicoques caractérisé par deux poutres se croisant en forme de X et reliées entre elles. 1 - Device for connecting floats of multihull boats characterized by two beams crossing each other in the shape of an X and connected to each other. 2 - Dispositif selon la revendication 1, caractérisé en ce que le X est formé par un caisson à la'formes  2 - Device according to claim 1, characterized in that the X is formed by a box with la'formes 3 - Dispositif selon la revendication 1, caractérisé en ce que le X est formé par deux poutres avant et arrière accolées. 3 - Device according to claim 1, characterized in that the X is formed by two contiguous front and rear beams. 4 - Dispositif selon les revendications 1, 2, 3, carac péris en ce que l'angle d'ouverture du X peut entre de 50 à 1750. 4 - Device according to claims 1, 2, 3, charac peris in that the opening angle of the X can between 50 to 1750. 5 - Dispositif selon les revendications 1, 2, 3, 49 caractérisé en ce que les poutres ou le caisson en X sont -habillés d'un carnage.  5 - Device according to claims 1, 2, 3, 49 characterized in that the beams or the X-box are dressed in carnage. 6 - Dispositif selon les revendications 1, 2, 3, '4, caractérisé en ce que l'invention sert de renforcement interne à un caisson de liaison de forme quelconque. 6 - Device according to claims 1, 2, 3, '4, characterized in that the invention serves as internal reinforcement to a connection box of any shape. 7 - Dispositif selon les revendications précédentes prises dans leur ensemble, caractérisé par ltemploi de plusieurs liaisons en X sur un mEme bateaux  7 - Device according to the preceding claims taken as a whole, characterized by the use of several X connections on the same boat 8 - Dispositif selon les revendications précédentes prises dans leur ensemble caractérisé par l'emploi de ce système de liaison pour plus de deux flotteurs. 8 - Device according to the preceding claims taken as a whole characterized by the use of this connection system for more than two floats. 9 - Dispositif selon les revendications précédentes prises dans leur ensemble caractérisé par le fait que le X puisse entre repliable transversalement afin de réduire l'encombrement en largeur du multicoque.  9 - Device according to the preceding claims taken as a whole characterized in that the X can between foldable transversely to reduce the overall width of the multihull.
FR8221080A 1982-12-14 1982-12-14 X CONNECTION FOR MULTIHULL Expired FR2537535B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8221080A FR2537535B1 (en) 1982-12-14 1982-12-14 X CONNECTION FOR MULTIHULL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221080A FR2537535B1 (en) 1982-12-14 1982-12-14 X CONNECTION FOR MULTIHULL

Publications (2)

Publication Number Publication Date
FR2537535A1 true FR2537535A1 (en) 1984-06-15
FR2537535B1 FR2537535B1 (en) 1985-10-11

Family

ID=9280156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8221080A Expired FR2537535B1 (en) 1982-12-14 1982-12-14 X CONNECTION FOR MULTIHULL

Country Status (1)

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FR (1) FR2537535B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787758A1 (en) * 1998-12-29 2000-06-30 Patrick Coulombel Quintamaran boat with five hulls propelled by wind or engine comprises central hull with two floats arranged on each side and spaced parallel from the central hull

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR816158A (en) * 1936-12-17 1937-08-02 Boat consisting of a single float or multiple floats
US3841251A (en) * 1973-09-17 1974-10-15 R Larson Sailboat
US3990380A (en) * 1975-08-25 1976-11-09 Regan Joseph D Stabilizing and supporting structure for a multi-hull boat
DE2815276A1 (en) * 1978-04-08 1979-10-18 Peter Messerschmidt Coupling frame for catamaran - consists of tubular assembly braced on separate hulls on elastic pads

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR816158A (en) * 1936-12-17 1937-08-02 Boat consisting of a single float or multiple floats
US3841251A (en) * 1973-09-17 1974-10-15 R Larson Sailboat
US3990380A (en) * 1975-08-25 1976-11-09 Regan Joseph D Stabilizing and supporting structure for a multi-hull boat
DE2815276A1 (en) * 1978-04-08 1979-10-18 Peter Messerschmidt Coupling frame for catamaran - consists of tubular assembly braced on separate hulls on elastic pads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2787758A1 (en) * 1998-12-29 2000-06-30 Patrick Coulombel Quintamaran boat with five hulls propelled by wind or engine comprises central hull with two floats arranged on each side and spaced parallel from the central hull

Also Published As

Publication number Publication date
FR2537535B1 (en) 1985-10-11

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