EP0693420A1 - Inflatable boat - Google Patents

Inflatable boat Download PDF

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Publication number
EP0693420A1
EP0693420A1 EP95400121A EP95400121A EP0693420A1 EP 0693420 A1 EP0693420 A1 EP 0693420A1 EP 95400121 A EP95400121 A EP 95400121A EP 95400121 A EP95400121 A EP 95400121A EP 0693420 A1 EP0693420 A1 EP 0693420A1
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EP
European Patent Office
Prior art keywords
inflatable
hull
pocket
boat
boat according
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.)
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Application number
EP95400121A
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German (de)
French (fr)
Inventor
Dominique Gosnet
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zodiac International SA
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Zodiac International SA
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Publication date
Application filed by Zodiac International SA filed Critical Zodiac International SA
Publication of EP0693420A1 publication Critical patent/EP0693420A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B7/00—Collapsible, foldable, inflatable or like vessels
    • B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08—Inflatable

Definitions

  • the present invention relates to improvements made to inflatable boats comprising at least one inflatable tube forming two parallel or substantially parallel branches joining forward to form a bow, said boat further comprising a V-section hull which is surrounded, at the front and laterally, by the above inflatable tube.
  • the floor can be composed of rigid panels hinged to each other as mentioned in the aforementioned document FR-A-1 155 376, or even be constituted by an approximately flat structure inflatable under high pressure to give it the required rigidity.
  • inflatable keel inflatable boats have been shown to be satisfactory due to their simplicity of structure and have experienced very great development, they nevertheless have a drawback which is linked to the difficulty of achieving easy access to the inflation valve of the inflatable keel across the floor; in particular in the case of an inflatable bottom, it is necessary to arrange it with reinforcements to ensure a sealed passage for the valve of the keel.
  • a complication of the structure of the boat which has an adverse effect on its manufacturing cost, and the constructive solutions adopted are therefore not entirely satisfactory.
  • the object of the invention is essentially to remedy the drawbacks presented by inflatable boats inflatable keel currently known and to provide an improved inflatable boat which better meets the various requirements of the practice, and which in particular is simpler to manufacture and use than previous boats with inflatable keel.
  • an inflatable boat as mentioned in the preamble is essentially characterized, being arranged in accordance with the invention, in that the V-shaped hull is a pneumatic hull constituted by at least one elongated inflatable pocket of generally substantially flattened shape and of transverse dimension substantially greater than the spacing of the two branches of the inflatable tube, which pocket, being inflated under high pressure, forms two panels inclined transversely with respect to one another to have a substantially V-shaped section and is secured laterally and at the front respectively to the two above-mentioned branches of the inflatable tube.
  • the V-shaped pneumatic hull is constituted by at least two elongated inflatable pockets of substantially flattened shape and which are inclined transversely with respect to each other to respectively constitute the two above-mentioned panels forming a section in V.
  • the hull takes a transverse V shape under the sole action of the inflation pressure and it is no longer necessary to have recourse to the floor which was to equip the inflatable keel boats. There is therefore then direct access, from above, to the upper face of the pocket or pockets constituting the hull and to the inflation valve or valves each of which is provided. Both the manufacture and the use of the boat are simplified.
  • a hull arranged in an inflatable form in accordance with the invention has a slightly less rigidity than that of a traditional rigid hull, for example in polyester, and it is therefore able to face waves with a relative capacity of deformation that does not have a rigid hull.
  • the design of the hull inflated under high pressure gives it a significantly greater rigidity than that of a boat with a flexible bottom and an inflatable keel, and therefore offers better heading stability.
  • a hull boat according to the invention combines the advantages of a rigid hull and a flexible hull with an inflatable keel, while eliminating their respective drawbacks and its seaworthiness is generally better than that conferred by hulls currently known.
  • the hull further comprises a flexible canvas which extends inside the space delimited by the inflatable tube and which is integral with it and the or each inflatable pocket is integral with the face turned upwards. of said flexible fabric.
  • each pocket is subdivided in particular transversely by internal partitions into several independent compartments.
  • each bag is inflated under a relatively high pressure, between 0.6 x 105 and 0.8 x 105 Pa.
  • the average opening angle of the V formed by the hull is approximately 150 °.
  • a pneumatic boat according to the invention which is designated as a whole by the reference numeral 1, comprises at least one inflatable tube 2 which forms two parallel or substantially parallel branches 3 joining forward to form a bow 4 and which is secured to a hull 5 with a V section (which will be discussed later) which it surrounds at the front and laterally. Finally, a transom 6 extends transversely between the rear ends of two branches 3 of the inflatable tube and the rear edge of the hull 5.
  • a pneumatic hull constituted by at at least one elongated inflatable bag 7 having a generally substantially flattened shape and having a transverse dimension (that is to say between the two branches 3 of the inflatable tube) which is substantially greater than the distance separating the inner sides of the two branches 3 of the tube.
  • the pocket 7 is unique and is arranged in any manner known to those skilled in the art so that its main faces 8 remain approximately parallel to each other and that they cannot deform into a bead or the like when inflated.
  • links of substantially identical lengths can be arranged inside the pocket, between the two main faces 8; but other solutions can be envisaged.
  • the bag 7 is inflated under a relatively high pressure, for example between 0.6 x 105 and 0.8 x 105 Pa, which is substantially greater than the inflation pressure (of the order of 0.2 x 105 at 0, 25 x 105 Pa) of the inflatable tube 2.
  • the lateral edges of the pocket 7 are held in abutment against the internal flanks of the branches 3 of the inflatable tube 2 and, on the one hand, due to the transverse oversizing of the pocket 7 relative to the mutual spacing of the branches 3 of the sausage 2 retained by the transom 6 and, on the other hand, the inflation pressure of the pocket 7, the pocket 7 is forced to deform by taking a double slope or V-shaped configuration with point downward.
  • the oversizing of the pocket 7 is such that the opening angle of the V thus obtained is approximately 150 °.
  • the pocket 7 can be securely joined, by its edges, to the flange 2 by any means known to those skilled in the art, for example by providing a skirt extending along the edge of the pocket and attached in leaktight manner, for example by gluing and / or welding, on the internal flank of the tube.
  • a pneumatic boat is obtained, the inflatable hull of which has great rigidity which makes it possible to overcome the presence of a rigid floor, which was compulsory in boats with an inflatable keel.
  • the upper face of the inflatable bag 7 is then directly accessible and the inflation valve 12 of said bag is also freely accessible and can be arranged in any suitable location as shown in FIG. 1. This results in both greater simplicity of manufacture, resulting in a reduction in manufacturing costs, and greater ease of use and implementation for the user.
  • the boat is almost entirely made up of flexible elements which form, in the deflated state, a foldable and / or rollable structure and occupies little space; the transom remains the only rigid part of the boat, but, being relatively short, it takes up little space for transport or storage, and thus retains the advantage specific to prior boats with inflatable keel.
  • the inflatable boat 1 shown in these figures is identical to that of the figures 1 to 3, except that it no longer has a single inflatable pocket 7, but two inflatable pockets 7 'which extend side by side over the entire length of the bottom of the boat and constitute the two sides of the V of the hull.
  • the two pockets 7 ' are pneumatically independent of each other and are each provided with their own inflation valve 12.
  • the two pockets 7' are supported laterally against the flange 2 and centrally against one another: this central support along an axial line 13 allows the two pockets 7 'to easily tilt one with respect to the other and therefore to better mark the tip of the V of the hull.
  • the two pockets 7 ′ are preferably secured to the upper face of a backdrop 9 which is itself secured to the flange 2 in a sealed manner.
  • Both the single pocket 7 of boat 1 and the two pockets 7 'of the boat 1' can be fitted with internal partitions 14, preferably transverse, determining a plurality of independent compartments 15 which extend transversely to the longitudinal axis of the boat: such an arrangement provides better security because, in the event of loss of pressure in one of the compartments, the hull can approximately retain its shape without excessive deformation and ensure still acceptable conditions of seaworthiness.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Tents Or Canopies (AREA)

Abstract

The craft has sides formed from an inflatable tube (2) shaped to form two side branches (3) joined together at the stem and surrounding a V-section bottom (5). The bottom of the craft is also inflatable and made from an elongated and flattened pouch (7). This has a transverse dimension greater than the distance between the side branches, so that its two sides can slope down towards the centre in a shallow V, e.g. of 150 degrees. The bottom of the boat also has a panel of a supple sheet material (9) on which the inflatable pouch rests and is fixed. The pouch is inflated to between 0.6 x 10 power 5 and 0.8 x 10 power 5 Pa. <IMAGE>

Description

La présente invention concerne des perfectionnements apportés aux embarcations pneumatiques comportant au moins un boudin gonflable formant deux branches parallèles ou sensiblement parallèles se rejoignant vers l'avant pour former une étrave, ladite embarcation comportant en outre une carène à section en V qui est entourée, à l'avant et latéralement, par le susdit boudin gonflable.The present invention relates to improvements made to inflatable boats comprising at least one inflatable tube forming two parallel or substantially parallel branches joining forward to form a bow, said boat further comprising a V-section hull which is surrounded, at the front and laterally, by the above inflatable tube.

On connaît, notamment d'après le document FR-A-1 155 376, une telle embarcation pneumatique dans laquelle la quille se présente sous forme d'une enveloppe tubulaire gonflable disposée suivant l'axe de l'embarcation à partir de l'étrave, intérieurement à une toile de fond formant carène, de façon à donner à cette dernière une tension et un profil convenable en s'appuyant sous un plancher rigide.We know, in particular from document FR-A-1 155 376, such a pneumatic boat in which the keel is in the form of an inflatable tubular casing disposed along the axis of the boat from the bow , internally to a backdrop forming a hull, so as to give the latter a suitable tension and profile by resting under a rigid floor.

Le plancher peut être composé de panneaux rigides articulés les uns aux autres comme mentionné dans le document précité FR-A-1 155 376, ou bien encore être constitué par une structure approximativement plane gonflable sous haute pression pour lui conférer la rigidité requise.The floor can be composed of rigid panels hinged to each other as mentioned in the aforementioned document FR-A-1 155 376, or even be constituted by an approximately flat structure inflatable under high pressure to give it the required rigidity.

Bien que les embarcations pneumatiques à quille gonflable se soient montrées satisfaisantes en raison de leur simplicité de structure et aient connu un très grand développement, elles présentent toutefois un inconvénient qui est lié à la difficulté de réaliser un accès facile à la valve de gonflage de la quille gonflable à travers le plancher ; en particulier dans le cas d'un fond gonflable, il est nécessaire d'agencer celui-ci avec des renforts pour assurer un passage étanche pour la valve de la quille. Il en résulte, d'une façon générale, une complication de la structure de l'embarcation qui se répercute défavorablement sur son coût de fabrication, et les solutions constructives adoptées ne sont donc pas entièrement satisfaisantes.Although inflatable keel inflatable boats have been shown to be satisfactory due to their simplicity of structure and have experienced very great development, they nevertheless have a drawback which is linked to the difficulty of achieving easy access to the inflation valve of the inflatable keel across the floor; in particular in the case of an inflatable bottom, it is necessary to arrange it with reinforcements to ensure a sealed passage for the valve of the keel. As a result, in general, a complication of the structure of the boat which has an adverse effect on its manufacturing cost, and the constructive solutions adopted are therefore not entirely satisfactory.

L'invention a essentiellement pour objet de remédier aux inconvénients présentés par les embarcations pneumatiques à quille gonflable actuellement connues et de proposer une embarcation pneumatique perfectionnée qui donne mieux satisfaction aux diverses exigences de la pratique, et qui en particulier soit de fabrication et d'utilisation plus simples que les embarcations antérieures à quille gonflable.The object of the invention is essentially to remedy the drawbacks presented by inflatable boats inflatable keel currently known and to provide an improved inflatable boat which better meets the various requirements of the practice, and which in particular is simpler to manufacture and use than previous boats with inflatable keel.

A ces fins, une embarcation pneumatique telle que citée au préambule se caractérise essentiellement, étant agencée conformément à l'invention, en ce que la carène à section en V est une carène pneumatique constituée par au moins une poche gonflable allongée de forme générale sensiblement aplatie et de dimension transversale sensiblement supérieure à l'écartement des deux branches du boudin gonflable, laquelle poche, étant gonflée sous haute pression, forme deux panneaux inclinés transversalement l'un par rapport à l'autre pour présenter une section sensiblement en V et est solidarisée latéralement et à l'avant respectivement aux deux susdites branches du boudin gonflable.For these purposes, an inflatable boat as mentioned in the preamble is essentially characterized, being arranged in accordance with the invention, in that the V-shaped hull is a pneumatic hull constituted by at least one elongated inflatable pocket of generally substantially flattened shape and of transverse dimension substantially greater than the spacing of the two branches of the inflatable tube, which pocket, being inflated under high pressure, forms two panels inclined transversely with respect to one another to have a substantially V-shaped section and is secured laterally and at the front respectively to the two above-mentioned branches of the inflatable tube.

Dans un mode de réalisation préféré, la carène pneumatique à section en V est constituée par au moins deux poches gonflables allongées de forme sensiblement aplatie et qui sont inclinées transversalement l'un par rapport à l'autre pour constituer respectivement les deux susdits panneaux formant une section en V.In a preferred embodiment, the V-shaped pneumatic hull is constituted by at least two elongated inflatable pockets of substantially flattened shape and which are inclined transversely with respect to each other to respectively constitute the two above-mentioned panels forming a section in V.

Grâce aux dispositions de l'invention, la carène prend une forme transversale en V sous la seule action de la pression de gonflage et il n'est plus nécessaire d'avoir recours au plancher qui devait équiper les embarcations à quille gonflable. On a donc alors un accès direct, par le haut, à la face supérieure de la poche ou des poches constituant la carène et à la valve ou aux valves de gonflage dont chacune est pourvue. Aussi bien la fabrication que l'utilisation de l'embarcation s'en trouvent simplifiées.Thanks to the provisions of the invention, the hull takes a transverse V shape under the sole action of the inflation pressure and it is no longer necessary to have recourse to the floor which was to equip the inflatable keel boats. There is therefore then direct access, from above, to the upper face of the pocket or pockets constituting the hull and to the inflation valve or valves each of which is provided. Both the manufacture and the use of the boat are simplified.

Par ailleurs, une carène agencée sous forme gonflable conformément à l'invention présente une rigidité légèrement moindre que celle d'une carène rigide traditionnelle, par exemple en polyester, et elle est donc à même d'affronter les vagues avec une relative capacité de déformation que ne possède pas une carène rigide. A l'inverse toutefois, la conception de la carène gonflée sous haute pression lui confère une rigidité nettement supérieure à celle d'une embarcation à fond souple à quille gonflable et offre donc une meilleure tenue au cap. Au total, une embarcation à carène conforme à l'invention réunit les avantages propres à la carène rigide et à la carène souple à quille gonflable tout en écartant leurs inconvénients respectifs et sa navigabilité se révèle globalement meilleure que celle conférée par les carènes connues actuellement.Furthermore, a hull arranged in an inflatable form in accordance with the invention has a slightly less rigidity than that of a traditional rigid hull, for example in polyester, and it is therefore able to face waves with a relative capacity of deformation that does not have a rigid hull. Conversely, however, the design of the hull inflated under high pressure gives it a significantly greater rigidity than that of a boat with a flexible bottom and an inflatable keel, and therefore offers better heading stability. In total, a hull boat according to the invention combines the advantages of a rigid hull and a flexible hull with an inflatable keel, while eliminating their respective drawbacks and its seaworthiness is generally better than that conferred by hulls currently known.

Avantageusement, la carène comprend en outre une toile souple qui s'étend à l'intérieur de l'espace délimité par le boudin gonflable et qui est solidarisée à celui-ci et la ou chaque poche gonflable est solidaire de la face tournée vers le haut de ladite toile souple. On obtient là un mode de fabrication simple, puisque la toile de fond est solidarisable au boudin de toute façon en soi connue, de la même manière que la toile de fond d'une embarcation à quille gonflable, et que ladite toile sert de support à la ou chaque poche gonflable qui n'a donc pas à être solidarisée directement au boudin gonflable.Advantageously, the hull further comprises a flexible canvas which extends inside the space delimited by the inflatable tube and which is integral with it and the or each inflatable pocket is integral with the face turned upwards. of said flexible fabric. This gives a simple manufacturing method, since the backdrop can be secured to the flange in any way known per se, in the same way as the backdrop of an inflatable keel boat, and that said backdrop serves as a support for the or each inflatable pocket which therefore does not have to be secured directly to the inflatable tube.

Eventuellement, par mesure de sécurité, on peut prévoir que chaque poche soit subdivisée notamment transversalement par des cloisons internes en plusieurs compartiments indépendants.Optionally, as a safety measure, it can be provided that each pocket is subdivided in particular transversely by internal partitions into several independent compartments.

Pour assurer de l'obtention de la rigidité requise, il est souhaitable que chaque poche soit gonflée sous une pression relativement élevée, comprise entre 0,6 x 10⁵ et 0,8 x 10⁵ Pa.To ensure that the required rigidity is obtained, it is desirable for each bag to be inflated under a relatively high pressure, between 0.6 x 10⁵ and 0.8 x 10⁵ Pa.

De préférence, l'angle moyen d'ouverture du V formé par la carène est d'environ 150°.Preferably, the average opening angle of the V formed by the hull is approximately 150 °.

Il peut également être intéressant de prévoir au moins une pièce de renfort en un matériau rigide ou semi-rigide solidarisée le long de la face interne et/ou externe de la pointe du V de la carène gonflable, soit pour maintenir en forme l'arête en V de la carène notamment au moment du gonflage, soit éventuellement pour assurer la protection mécanique de cette arête.It may also be advantageous to provide at least one reinforcement piece of a rigid or semi-rigid material secured along the internal and / or external face of the tip of the V of the inflatable hull, either to maintain the V-shaped edge of the hull in particular during inflation, or possibly to provide mechanical protection for this edge .

L'invention sera mieux comprise à la lecture de la description détaillée qui suit de certains modes de réalisation détaillés donnés uniquement à titre d'exemples non limitatifs. Dans cette description, on se réfère aux dessins annexés sur lesquels :

  • les figures 1 et 2 sont respectivement des vues de dessus et de côté d'une embarcation pneumatique agencée conformément à l'invention ;
  • la figure 3 est une vue en coupe selon la ligne A-A de la figure 2 ;
  • la figure 4 montre une variante de réalisation de l'agencement de la figure 3 ;
  • la figure 5 est une vue de dessus d'un mode de réalisation préféré d'une embarcation pneumatique agencée conformément à l'invention ; et
  • la figure 6 est une vue en coupe selon la ligne B-B de la figure 5.
The invention will be better understood on reading the detailed description which follows of certain detailed embodiments given solely by way of nonlimiting examples. In this description, reference is made to the appended drawings in which:
  • Figures 1 and 2 are respectively top and side views of an inflatable boat arranged in accordance with the invention;
  • Figure 3 is a sectional view along line AA of Figure 2;
  • Figure 4 shows an alternative embodiment of the arrangement of Figure 3;
  • Figure 5 is a top view of a preferred embodiment of a pneumatic boat arranged in accordance with the invention; and
  • FIG. 6 is a sectional view along the line BB in FIG. 5.

En se référant tout d'abord aux figures 1 et 2, une embarcation pneumatique conforme à l'invention, qui est désignée dans son ensemble par la référence numérique 1, comporte au moins un boudin gonflable 2 qui forme deux branches parallèles ou sensiblement parallèles 3 se rejoignant vers l'avant pour former une étrave 4 et qui est solidarisé à une carène 5 à section en V (dont il sera question plus loin) qu'il entoure à l'avant et latéralement. Enfin, un tableau arrière 6 s'étend transversalement entre les extrémités arrière de deux branches 3 du boudin gonflable et le bord arrière de la carène 5.Referring first to Figures 1 and 2, a pneumatic boat according to the invention, which is designated as a whole by the reference numeral 1, comprises at least one inflatable tube 2 which forms two parallel or substantially parallel branches 3 joining forward to form a bow 4 and which is secured to a hull 5 with a V section (which will be discussed later) which it surrounds at the front and laterally. Finally, a transom 6 extends transversely between the rear ends of two branches 3 of the inflatable tube and the rear edge of the hull 5.

Maintenant, pour ce qui est particulièrement de la carène 5 à section en V, il s'agit, comme on le voit mieux à la figure 3, d'une carène pneumatique constituée par au moins une poche gonflable allongée 7 ayant une forme générale sensiblement aplatie et ayant une dimension transversale (c'est-à-dire entre les deux branches 3 du boudin gonflable) qui est sensiblement supérieure à la distance séparant l'un de l'autre les flancs intérieurs des deux branches 3 du boudin.Now, as regards particularly the hull 5 with a V section, it is, as can be seen better in FIG. 3, a pneumatic hull constituted by at at least one elongated inflatable bag 7 having a generally substantially flattened shape and having a transverse dimension (that is to say between the two branches 3 of the inflatable tube) which is substantially greater than the distance separating the inner sides of the two branches 3 of the tube.

Dans l'exemple de réalisation de la figure 3, la poche 7 est unique et elle est agencée de toute manière connue de l'Homme du Métier pour que ses faces principales 8 restent approximativement parallèles l'une à l'autre et qu'elles ne puissent pas se déformer en un boudin ou analogue à l'état gonflé. Par exemple, des liens de longueurs sensiblement identiques peuvent être disposés à l'intérieur de la poche, entre les deux faces principales 8; mais d'autres solutions peuvent être envisagées.In the embodiment of Figure 3, the pocket 7 is unique and is arranged in any manner known to those skilled in the art so that its main faces 8 remain approximately parallel to each other and that they cannot deform into a bead or the like when inflated. For example, links of substantially identical lengths can be arranged inside the pocket, between the two main faces 8; but other solutions can be envisaged.

La poche 7 est gonflée sous une pression relativement élevée par exemple comprise entre 0,6 x 10⁵ et 0,8 x 10⁵ Pa, qui est sensiblement supérieure à la pression de gonflage (de l'ordre de 0,2 x 10⁵ à 0,25 x 10⁵ Pa) du boudin gonflable 2.The bag 7 is inflated under a relatively high pressure, for example between 0.6 x 10⁵ and 0.8 x 10⁵ Pa, which is substantially greater than the inflation pressure (of the order of 0.2 x 10⁵ at 0, 25 x 10⁵ Pa) of the inflatable tube 2.

Les bords latéraux de la pocher 7 sont maintenus en butée contre les flancs intérieurs des branches 3 du boudin gonflable 2 et, en raison, d'une part, du surdimentionnement transversal de la poche 7 par rapport à l'écartement mutuel des branches 3 du boudin 2 retenues par le tableau arrière 6 et, d'autre part, de la pression de gonflage de la poche 7, la poche 7 est contrainte à se déformer en prenant une configuration à double pente ou en V à pointe tournée vers le bas. Le surdimensionnement de la poche 7 est tel que l'angle d'ouverture du V ainsi obtenu est d'environ 150°.The lateral edges of the pocket 7 are held in abutment against the internal flanks of the branches 3 of the inflatable tube 2 and, on the one hand, due to the transverse oversizing of the pocket 7 relative to the mutual spacing of the branches 3 of the sausage 2 retained by the transom 6 and, on the other hand, the inflation pressure of the pocket 7, the pocket 7 is forced to deform by taking a double slope or V-shaped configuration with point downward. The oversizing of the pocket 7 is such that the opening angle of the V thus obtained is approximately 150 °.

La poche 7 peut être solidarisée de façon étanche, par ses bords, au boudin 2 par tous moyens connus de l'Homme de Métier, par exemple en prévoyant une jupe s'étendant le long du bord de la poche et rapportée de façon étanche, par exemple par collage et/ou soudure, sur le flanc interne du boudin.The pocket 7 can be securely joined, by its edges, to the flange 2 by any means known to those skilled in the art, for example by providing a skirt extending along the edge of the pocket and attached in leaktight manner, for example by gluing and / or welding, on the internal flank of the tube.

Toutefois, à la fois pour renforcer et pour protéger la poche 7, et notamment la face inférieure de celle-ci, on peut avantageusement prévoir une toile de fond étanche 9 s'étendant dans l'espace entouré par le boudin 2, cette toile de fond étant comparable à la toile de fond prévue dans les embarcations antérieures à quille gonflable et pouvant être solidarisée au boudin gonflable de la même manière : sur ce point, on conserve donc le même mode de fabrication qu'auparavant. La poche 7 est rapportée sur la face supérieure de la toile de fond 9 et est solidarisée mécaniquement à celle-ci, la poche 7 étant simplement en appui contre le boudin 2.However, both to reinforce and to protect the pocket 7, and in particular the underside thereof, it is advantageous to provide a waterproof backdrop 9 extending in the space surrounded by the flange 2, this backdrop bottom being comparable to the backdrop provided in previous boats with inflatable keel and can be secured to the inflatable tube in the same way: on this point, we therefore keep the same manufacturing method as before. The pocket 7 is attached to the upper face of the backdrop 9 and is mechanically secured thereto, the pocket 7 simply being pressed against the flange 2.

En l'absence de toile de fond, ou bien même en présence d'une toile de fond, bien qu'une telle toile de fond 9 semble devoir constituer en principe une protection suffisamment efficace de la poche 7, il est possible d'envisager, au moins pour certaines applications spécifiques, la mise en place d'un renfort supplémentaire sur tout ou partie d'au moins les parties les plus exposées de la face inférieure de la carène 5 ; en particulier, on peut prévoir une bande de renforcement 10 s'étendant le long de l'arête de la carène comme montré à la figure 4, cette bande pouvant être constituée en une toile épaisse ou en matière synthétique relativement souple.In the absence of a backdrop, or even in the presence of a backdrop, although such a backdrop 9 seems in principle to constitute a sufficiently effective protection of the pocket 7, it is possible to envisage , at least for certain specific applications, the installation of an additional reinforcement on all or part of at least the most exposed parts of the underside of the hull 5; in particular, provision may be made for a reinforcing strip 10 extending along the edge of the hull as shown in FIG. 4, this strip being able to consist of a thick fabric or of relatively flexible synthetic material.

En outre, pour aider la poche 7 en cours de gonflage à prendre la forme souhaitée et être assuré que ladite forme soit en V à pointe significativement configurée, il peut être envisagé de prévoir un renfort 11 constitué en un matériau semi-dur préformé en V et s'étendant le long de la face intérieure de la poche 7 à l'intérieur de la pointe du V, comme montré à la figure 4.In addition, to help the bag 7 during inflation to take the desired shape and to be sure that said shape is in V shape with a significantly configured point, it may be envisaged to provide a reinforcement 11 made of a semi-hard material preformed in V and extending along the inside of the pocket 7 inside the tip of the V, as shown in FIG. 4.

Grâce aux dispositions qui viennent d'être décrites, on obtient une embarcation pneumatique dont la carène gonflable présente une grande rigidité qui permet de s'affranchir de la présence d'un plancher rigide, lequel était obligatoire dans les embarcations à quille gonflable. La face supérieure de la poche gonflable 7 est alors directement accessible et la valve 12 de gonflage de ladite poche est, elle aussi, librement accessible et peut être disposée en n'importe quel emplacement approprié comme montré à la figure 1. Il en résulte à la fois une plus grande simplicité de fabrication, se traduisant par une réduction des coûts de fabrication, et une plus grande facilité d'emploi et de mise en oeuvre pour l'utilisateur. Par ailleurs, l'embarcation est en quasi totalité constituée d'éléments souples qui forment, à l'état dégonflé, une structure pliable et/ou enroulable et peu encombrante ; le tableau arrière demeure la seule pièce rigide de l'embarcation, mais, étant de relativement faible longueur, il est peu encombrant pour le transport ou le rangement, et l'on conserve ainsi l'avantage propre aux embarcations antérieures à quille gonflable.Thanks to the arrangements which have just been described, a pneumatic boat is obtained, the inflatable hull of which has great rigidity which makes it possible to overcome the presence of a rigid floor, which was compulsory in boats with an inflatable keel. The upper face of the inflatable bag 7 is then directly accessible and the inflation valve 12 of said bag is also freely accessible and can be arranged in any suitable location as shown in FIG. 1. This results in both greater simplicity of manufacture, resulting in a reduction in manufacturing costs, and greater ease of use and implementation for the user. Furthermore, the boat is almost entirely made up of flexible elements which form, in the deflated state, a foldable and / or rollable structure and occupies little space; the transom remains the only rigid part of the boat, but, being relatively short, it takes up little space for transport or storage, and thus retains the advantage specific to prior boats with inflatable keel.

Pour faciliter la mise en forme convenable de la carène au cours du gonflage, il est avantageux d'avoir recours aux dispositions du mode de réalisation préféré des figures 5 et 6. L'embarcation pneumatique 1 représentée sur ces figures est identique à celle des figures 1 à 3, à ceci près qu'elle comporte non plus une unique poche gonflable 7, mais deux poches gonflables 7' qui s'étendent côte-à-côte sur toute la longueur du fond de l'embarcation et constituent les deux flancs du V de la carène. Les deux poches 7' sont pneumatiquement indépendantes l'une de l'autre et sont munies chacune de leur propre valve de gonflage 12. Les deux poches 7' sont en appui latéralement contre le boudin 2 et centralement l'une contre l'autre : cet appui central le long d'une ligne axiale 13 permet aux deux poches 7' de s'incliner facilement l'une par rapport à l'autre et donc de mieux marquer la pointe du V de la carène. Comme précédemment, les deux poches 7' sont de préférence solidarisées à la face supérieure d'une toile de fond 9 qui est elle-même solidarisée de façon étanche au boudin 2.To facilitate the proper shaping of the hull during inflation, it is advantageous to use the provisions of the preferred embodiment of Figures 5 and 6. The inflatable boat 1 shown in these figures is identical to that of the figures 1 to 3, except that it no longer has a single inflatable pocket 7, but two inflatable pockets 7 'which extend side by side over the entire length of the bottom of the boat and constitute the two sides of the V of the hull. The two pockets 7 'are pneumatically independent of each other and are each provided with their own inflation valve 12. The two pockets 7' are supported laterally against the flange 2 and centrally against one another: this central support along an axial line 13 allows the two pockets 7 'to easily tilt one with respect to the other and therefore to better mark the tip of the V of the hull. As before, the two pockets 7 ′ are preferably secured to the upper face of a backdrop 9 which is itself secured to the flange 2 in a sealed manner.

Aussi bien la poche unique 7 de l'embarcation 1 que les deux poches 7' de l'embarcation 1' peuvent être équipées de cloisonnements internes 14 de préférence transversaux déterminant une pluralité de compartiments indépendants 15 qui s'étendent transversalement à l'axe longitudinal de l'embarcation : un tel agencement procure une meilleure sécurité car, en cas de perte de pression dans l'un des compartiments, la carène peut conserver approximativement sa forme sans déformation excessive et assurer des conditions de navigabilité encore acceptables.Both the single pocket 7 of boat 1 and the two pockets 7 'of the boat 1' can be fitted with internal partitions 14, preferably transverse, determining a plurality of independent compartments 15 which extend transversely to the longitudinal axis of the boat: such an arrangement provides better security because, in the event of loss of pressure in one of the compartments, the hull can approximately retain its shape without excessive deformation and ensure still acceptable conditions of seaworthiness.

Comme il va de soi et comme il résulte déjà de ce qui précède, l'invention ne se limite nullement à ceux de ses modes d'application et de réalisation qui ont été plus particulièrement envisagés ; elle en embrasse au contraire toutes les variantes.As is obvious and as already follows from the above, the invention is in no way limited to those of its modes of application and embodiments which have been more particularly envisaged; on the contrary, it embraces all its variants.

Claims (7)

Embarcation pneumatique (1,1′) comportant au moins un boudin gonflable (2) formant deux branches (3) parallèles ou sensiblement parallèles se rejoignant vers l'avant pour former une étrave (4), ladite embarcation comportant en outre une carène (5) à section en V qui est entourée, à l'avant et latéralement, par le susdit boudin gonflable (2),
caractérisée en ce que la carène (5) à section en V est une carène pneumatique constituée par au moins une poche gonflable (7, 7') allongée de forme générale sensiblement aplatie et de dimension transversale sensiblement supérieure à l'écartement des deux branches (3) du boudin gonflable, laquelle poche, étant gonflée sous haute pression, forme deux panneaux inclinés transversalement l'un par rapport à l'autre pour présenter une section sensiblement en V et est solidarisée latéralement et à l'avant respectivement aux deux susdites branches du boudin gonflable.Inflatable boat (1,1 ′) comprising at least one inflatable tube (2) forming two branches (3) parallel or substantially parallel joining forward to form a bow (4), said boat further comprising a hull (5 ) V-shaped section which is surrounded, at the front and laterally, by the above inflatable tube (2),
characterized in that the hull (5) with a V section is a pneumatic hull constituted by at least one inflatable pocket (7, 7 ') of elongated general shape substantially flattened and of transverse dimension substantially greater than the spacing of the two arms 3) of the inflatable tube, which pocket, being inflated under high pressure, forms two panels inclined transversely with respect to each other to have a substantially V-shaped section and is secured laterally and at the front respectively to the two above-mentioned branches inflatable tube. Embarcation selon la revendication 1, caractérisée en ce que la carène pneumatique à section en V est constituée par au moins deux poches gonflables (7) allongées de forme sensiblement aplatie et qui sont inclinées transversalement l'une par rapport à l'autre pour constituer respectivement les deux susdits panneaux formant une section en V.Boat according to claim 1, characterized in that the V-shaped pneumatic hull is constituted by at least two inflatable pockets (7) elongated of substantially flattened shape and which are inclined transversely with respect to each other to constitute respectively the two aforementioned panels forming a V-shaped section. Embarcation selon la revendication 1, caractérisée en ce que la carène comprend en outre une toile souple (9) qui s'étend à l'intérieur de l'espace délimité par le boudin gonflable et qui est solidarisée à celui-ci et en ce que la ou chaque poche gonflable (7, 7') est solidaire de la face tournée vers le haut de ladite toile souple (9).Boat according to claim 1, characterized in that the hull further comprises a flexible canvas (9) which extends inside the space delimited by the inflatable tube and which is secured thereto and in that the or each inflatable pocket (7, 7 ') is integral with the upwardly facing face of said flexible fabric (9). Embarcation selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'angle moyen d'ouverture du V formé par la carène (5) est d'environ 150°.Boat according to any one of claims 1 to 3, characterized in that the average opening angle of the V formed by the hull (5) is approximately 150 °. Embarcation selon l'une quelconque des revendications 1 à 4, caractérisée en ce que chaque poche (7, 7') est subdivisée par des cloisons internes (14) en plusieurs compartiments indépendants (15).Boat according to any one of claims 1 to 4, characterized in that each pocket (7, 7 ') is subdivided by internal partitions (14) into several independent compartments (15). Embarcation selon l'une quelconque des revendications 1 à 5, caractérisée en ce que chaque poche (7, 7') est gonflée sous une pression relativement élevée, comprise entre 0,6 x 10⁵ et 0,8 x 10⁵ Pa.Boat according to any one of claims 1 to 5, characterized in that each pocket (7, 7 ') is inflated under a relatively high pressure, between 0.6 x 10⁵ and 0.8 x 10⁵ Pa. Embarcation selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'au moins une pièce de renfort (10, 11) en un matériau rigide ou semi-rigide est solidarisée le long de la face externe et/ou interne de la pointe du V de la carène gonflable (5).Boat according to any one of Claims 1 to 6, characterized in that at least one reinforcement piece (10, 11) made of a rigid or semi-rigid material is secured along the external and / or internal face of the tip of the V of the inflatable hull (5).
EP95400121A 1994-07-22 1995-01-20 Inflatable boat Withdrawn EP0693420A1 (en)

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FR9409108A FR2722758A1 (en) 1994-07-22 1994-07-22 PNEUMATIC BOAT
FR9409108 1994-07-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795040A1 (en) * 1999-06-21 2000-12-22 Zodiac Int PNEUMATIC BOAT WITH INFLATABLE Keel
ES2289870A1 (en) * 2004-06-11 2008-02-01 Zodiac International Inflatable boat with a high pressure inflatable keel
US8800466B1 (en) 2010-06-23 2014-08-12 Navatek, Ltd. Inflatable watercraft with reinforced panels
EP3456621A1 (en) * 2017-09-15 2019-03-20 Out-Trade GmbH Foldable watercraft
CN112368204A (en) * 2018-05-07 2021-02-12 戴卡特隆有限公司 Canoe type inflatable boat
IT202100011300A1 (en) * 2021-05-04 2022-11-04 Siner G S R L PNEUMATIC BOAT WITH VARIABLE ENCLOSURE

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2981630B1 (en) 2011-10-21 2015-12-04 Marion Colette Francoise Excoffon INFLATABLE SHELL AND EQUIPMENT OF ADAPTED DRIVER TYPE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235038A1 (en) * 1973-06-28 1975-01-24 Pirelli Inflatable boat with double membrane floor - space and body between membranes may be adjustably inflated
DE3448029A1 (en) * 1984-07-10 1986-04-24 Metzeler Kautschuk GmbH, 8000 München Inflatable boat
WO1987002438A1 (en) * 1985-10-15 1987-04-23 Richard Bernhard Richardson Fluid filled device and valve therefor
DE9308104U1 (en) * 1993-05-13 1993-11-11 Lang Max Inflatable boat

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2235038A1 (en) * 1973-06-28 1975-01-24 Pirelli Inflatable boat with double membrane floor - space and body between membranes may be adjustably inflated
DE3448029A1 (en) * 1984-07-10 1986-04-24 Metzeler Kautschuk GmbH, 8000 München Inflatable boat
WO1987002438A1 (en) * 1985-10-15 1987-04-23 Richard Bernhard Richardson Fluid filled device and valve therefor
DE9308104U1 (en) * 1993-05-13 1993-11-11 Lang Max Inflatable boat

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2795040A1 (en) * 1999-06-21 2000-12-22 Zodiac Int PNEUMATIC BOAT WITH INFLATABLE Keel
ES2190847A1 (en) * 1999-06-21 2003-08-16 Zodiac Int Pneumatic boat with an inflatable keel
ES2289870A1 (en) * 2004-06-11 2008-02-01 Zodiac International Inflatable boat with a high pressure inflatable keel
US8800466B1 (en) 2010-06-23 2014-08-12 Navatek, Ltd. Inflatable watercraft with reinforced panels
EP3456621A1 (en) * 2017-09-15 2019-03-20 Out-Trade GmbH Foldable watercraft
CN112368204A (en) * 2018-05-07 2021-02-12 戴卡特隆有限公司 Canoe type inflatable boat
CN112368204B (en) * 2018-05-07 2023-10-27 戴卡特隆有限公司 Kayak type inflatable boat
IT202100011300A1 (en) * 2021-05-04 2022-11-04 Siner G S R L PNEUMATIC BOAT WITH VARIABLE ENCLOSURE

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Publication number Publication date
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