EP3208184B1 - Watercraft with movable backrest and method of assembly - Google Patents

Watercraft with movable backrest and method of assembly Download PDF

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Publication number
EP3208184B1
EP3208184B1 EP17155719.2A EP17155719A EP3208184B1 EP 3208184 B1 EP3208184 B1 EP 3208184B1 EP 17155719 A EP17155719 A EP 17155719A EP 3208184 B1 EP3208184 B1 EP 3208184B1
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EP
European Patent Office
Prior art keywords
backrest
deck
movable backrest
seat
mobile
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EP17155719.2A
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German (de)
French (fr)
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EP3208184A1 (en
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Vincent MAS
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Rotomod
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Rotomod
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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 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/26—Accessories for canoes, kayaks or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/20—Canoes, kayaks or the like

Definitions

  • the present invention belongs to the field of navigation, sports (boating) or leisure (boating). More particularly, the invention relates to a light boat of the canoe or kayak type. The invention is in particular relating to a boat comprising at least one backrest articulated on the deck of said boat.
  • Canoe or kayak type boats often have a bucket seat molded into the body of the boat. For reasons of space and manufacturing, the top of these seats is then often limited to the same height as the upper part of the deck of the boat. This results in a relatively small file height, not ensuring comfort to the user and supporting only a small portion of the lower back. Prolonged navigation in these conditions can cause muscle pain in the back.
  • Some devices more or less overcome the problem of back support during the practice of nautical activities. Folders of different shapes, sometimes with modular uses, have been incorporated into canoes and kayaks, either with removable seats or by direct mounting on the deck. Sometimes cans stored behind a seat play the role and provide the main functionality of a folder. However, when the inserts are fixed, their size can be problematic. For example when several boats must be stacked for transport or storage outside periods of use. In some solutions, removable folders, foldable or telescopic, are implemented to avoid this problem. These solutions often prove impractical and include an assembly of several mechanical parts. These folders often require deck fittings more or less important, including straps and attachment points. These components increase the vulnerability of the structure. This also results in a heavier boat and an increase in manufacturing costs. They also increase the risk of theft of these elements that are easily removable, which, as a precaution, leads to their disassembly whenever the storage conditions do not guarantee sufficient access security.
  • US 2013/0074760 discloses a boat with a seat with a mobile backrest.
  • An object of the present invention is to provide a solution to the problems of the prior art and proposes a boat whose movable backrest improves the comfort of the user without hindering a stacked storage of several boats, and which is kept secured to the bridge without being able to simply be removed.
  • the present invention claimed relates to a boat comprising a main body formed by an outer casing providing buoyancy, the hull, and a complementary casing, the bridge, and at least one seat with a movable backrest.
  • the mobile backrest has on its sides two lugs whose axes are substantially aligned.
  • the body of the boat has at its deck two housings made in the structure of said bridge and in each of which is placed a fixing lug, securing the mobile backrest to the bridge and forming a pivot connection that allows a rotation of the backrest movable between a raised position, in which the user can press his back on the backrest, and a lowered position, wherein the mobile backrest is mainly included in an interior volume of the bridge.
  • the boat thus obtained has a practical mobile backrest requiring no additional parts and guaranteeing an effective support for the back of the user and a free storage space of several boats in a pile.
  • the axis of the pivot connection between the mobile backrest and the bridge is substantially perpendicular to the vertical plane of symmetry of the boat. This allows the backrest to rotate transversely between the raised position and the lowered position. In addition, for a better stability of the mobile backrest, the axis of the pivot connection is located in front of the front of the mobile backrest when it is raised.
  • the mobile backrest In the raised position, the mobile backrest exceeds the top of the deck of the boat so that the support of the back of a user is improved in height.
  • the seat has a fixed backrest whose upper edge is locally at the same level as the deck of the boat.
  • the seat and the fixed back seat are formed integrally with the bridge to form a bucket seat. This increases the comfort of the user and limits the number of parts of the boat.
  • the deck of the boat has a bearing surface shaped so that the lower edge of the mobile backrest is supported on said bearing surface when the mobile backrest is in the raised position. It is thus obtained a stable position of the mobile backrest in the raised position. Therefore, the bearing surface forms a stop of the inclination of the backrest.
  • At least one bearing surface is substantially centered along a longitudinal axis of the bridge. It is thus obtained a support zone substantially in the central axis of the folder ensuring the stability and recovery efforts applied to the record in the raised position.
  • the bearing surface is formed with dimensions in a longitudinal direction X and a transverse direction Y, and a surface, so as to form a raised seat seat when the mobile backrest is lowered.
  • the user has a better field of vision when sitting on said raised seat.
  • the shape of the upper edge of the mobile backrest is complementary to the shape of the seat of the seat, the upper edge of the folder then marries the shape of the seat in the lowered position. This also limits the effects of repetitive shocks back against the seat that could lead to local damage to the seat.
  • the diameter of the fixing lugs and the distance separating them are respectively consistent with the diameter and the distance between them. housings so that the mobile backrest pivots between the raised and lowered positions without excessive resistance or play.
  • the movable back has a generally convex rear surface and having a central concavity that guides the bow of another boat during stacking.
  • the invention also relates to a method of assembling a main body and a mobile backrest to form a boat according to the invention.
  • the body of the boat is formed of a thermofusible polymer material which is heated to be melted or softened and then cooled.
  • the body of the boat is deformed to temporarily increase the distance between the housing, at a stage of its manufacture in which the material is not sufficiently cooled to maintain a desired final shape of the body, and then the previously made movable backrest is placed with the fixing lugs in the housing of the bridge, then the body is reformed entirely in its desired final form before complete cooling.
  • the deck and the mobile backrest are thus assembled in the boat without any particular effort and without risking damaging the deck, or the backrest, or both, if it was plausible to assemble them when the body of the boat is cooled because of the stiffness that he then acquired.
  • the figure 1a shows by way of example a boat 100, here a canoe, comprising mainly a body, formed by a bridge 20 and a hull 30, and two bucket seats 21a and 21b formed in a bridge structure, each seat further comprising a movable backrest 10 attached to said bridge.
  • a boat 100 here a canoe, comprising mainly a body, formed by a bridge 20 and a hull 30, and two bucket seats 21a and 21b formed in a bridge structure, each seat further comprising a movable backrest 10 attached to said bridge.
  • the deck 20 of the boat is composed of a main structure and has an overall vertical symmetry plane.
  • the bridge of the illustrated example comprises two bucket seats, the front seat 21a forming the front seat according to the usual direction of travel of the boat which corresponds to the direction of the X croissants on the figure 1a and the rear seat 21b behind the front seat.
  • Said seats are each formed, by a seat and a lower part of the backrest, integrally in the bridge structure and each further comprise a movable backrest 10 articulated on the bridge.
  • the figure 1b illustrates a bucket seat 21, which may be the front seat 21a or the rear seat 21b of the boat of the figure 1a , with its mobile backrest 10 in the raised position and leaving visible the other parts of the seat.
  • the seat 21 comprises an ergonomic seat 211, hollow and curved providing ergonomic support for the thighs of a user, and a folder composed in the illustrated example of two separate parts.
  • a fixed back 212 for a lower part, forming the bottom of the file and located in a continuity of the seat 211, essentially under the upper part of the deck of the boat, and a movable backrest 10, for an upper part, forming the top of the backrest when it is in the raised position as on the detail of the figure 1b .
  • the mobile file 10 shown separately on the Figures 3a and 3b , is substantially symmetrical with the same plane of vertical symmetry as the body of the boat and comprises a front face 11 of shape adapted to serve as a support for the back of a user, and a rear face 12, the opposite of the front face.
  • the mobile backrest 10 also has an upper edge 13 forming the top of the folder, and a lower edge 14 forming the bottom of the folder.
  • the top and bottom of the mobile backrest are conventionally defined, in the sense given above supra, when the mobile backrest is raised and in a position of use as a folder by a seat occupant 21.
  • the backrest 10 has two sides, 15 and 16, on each of which is a fixing lug, respectively 17 and 18.
  • the mobile backrest 10 has a slightly trapezoidal and concave shape for better support of the user's back.
  • the bridge 20 comprises two housings, 22 and 23, associated with the seat 21 to maintain the mobile backrest 10 by the attachment lugs 17 and 18 of said movable backrest inserted in said housing. In each of said housings is placed a fixing lug.
  • the figure 4 shows one of these housing, the movable backrest being shown with the fixing lug 17 clear of the housing 22 in which it is normally inserted.
  • Each housing is, in the illustrated example, a cylindrical cavity of circular section, made in the bridge structure, of a diameter adapted to receive a fixing lug of the backrest during assembly and form a pivot connection.
  • the axes of the two pivot links thus formed are substantially merged and determine a transverse axis A of rotation of the mobile backrest substantially in the direction of the Y axis perpendicular to the vertical plane of symmetry XZ of the body of the boat, as shown in FIG. detail of the figure 2b , so that the backrest is able to rotate around these axes.
  • the position of the transverse axis A is on the mobile backrest 10 offset towards the front relative to the front face 11 of the mobile backrest, when the mobile backrest is in the raised position, so that the greater part of a volume of the mobile backrest 10, and its mass, is behind the transverse axis A in the raised position of said mobile backrest and is in front of the transverse axis A in the lowered position of said mobile folder.
  • the mobile backrest 10 is naturally stable in both raised and lowered positions. as will be understood from the subsequent description of the implementation of the boat and said mobile record.
  • the fixing lugs 17 and 18 are cylindrical in shape with a circular section, chamfered at their free ends to facilitate their insertion into the housings 22 and 23.
  • the mobile backrest 10 is hinged loosely on the bridge 20 so as to be pivotable about the transverse axis A, shown in FIG. figure 5 , with a minimum game.
  • the cylindrical housing opposite an opening 222 opening on a surface of the bridge 20 and through which is inserted the fixing lug, ends with a bottom 221 materialized by the base of the cylinder, see figure 4a .
  • a depth of the housing h l is substantially equal to a length h d of the lug.
  • the mobile backrest 10 is hollow in shape, delimited by a wall defining the outer surfaces of said mobile backrest, which considerably limits the amount of material forming said mobile backrest, and therefore its mass, and contributes to the buoyancy of the boat.
  • the mobile backrest 10 is advantageously provided with a capillary opening 142 opening on the lower edge 14 of said mobile backrest, see figure 3b . Said capillary aperture prevents water from filling the interior volume of the backrest while allowing air to circulate between the inside and the outside of said backrest in order to preserve the structure of the backrest against the fatigue caused by the dilations and compressions internal gas under the effect of the temperature cycle.
  • the mobile backrest 10 is for example made of a material having a mechanical strength adapted to the forces experienced by the boat and the environment of its use.
  • This material is, for example, a polyethylene material which may be the one with which the body of the boat 20 is also made.
  • the backrest 10 pivots around the transverse axis A between two extreme positions.
  • the raised position is used to support the back of a user. This position is achieved when the lower edge 14 of the mobile backrest 10 is supported on a bearing surface 24 of the bridge 20 formed behind the fixed backrest 212.
  • the bearing surface 24 forms a rear stop for the pivot connection between the backrest mobile and the bridge, see Figures 1b and 2b .
  • the lower edge of the mobile backrest and the bearing surface of the bridge have substantially similar shapes.
  • the bearing surface 24 has a width at least equal to that of the lower edge 14 so that the latter can rest stably and resume the efforts more effectively.
  • the bearing surface 24 on which the mobile backrest 10 is resting in the raised position is offset rearward with respect to the locations of the pivot links, in accordance with the geometric shape of said mobile backrest, for a better stability and to better resist the torque generated by the back of the user.
  • the support surface 24 on which the mobile backrest 10 in the raised position rests has sufficient rearward extension to form a raised seat 27 of sufficient surface area when the mobile backrest 10 is lowered, see figure 8 .
  • a user of the boat can sit on the raised seat 27, when the mobile backrest 10 is placed in the lowered position, so as to benefit, by its elevated position, a better field of view.
  • Such a configuration is very useful for example for a monitor to monitor students, especially distributed in several boats.
  • the mobile backrest 10 In the lowered position the mobile backrest 10 is tilted forwards and the upper edge 13 of the mobile backrest 10 rests on the surface of the seat 211 of the seat 21 of the boat, figure 2b .
  • the upper edge 13 of the mobile backrest has a shape optimized to match the shape of the seat 211 at a contact area which reduces the impact of repeated shocks of said upper edge of the mobile backrest on the surface of the seat 211.
  • a boat record is obtained comprising the fixed backrest 212 of the bucket seat 21 and the mobile backrest 10 which is then the extension in height of the fixed backrest.
  • the comfort of the user is mainly ensured by the additional height of the backrest that provides the mobile backrest 10 in the raised position.
  • the lower edge 14 of the mobile backrest 10 has a rib 141 substantially in the vertical plane of symmetry in the example shown in FIG. figure 3b .
  • the bearing surface 24 of the bridge comprises in this embodiment a groove 241 as shown in FIG. figure 2b whose position, shape and dimensions are adapted to accommodate the rib 141 when the mobile backrest is in the raised position. As a result of this arrangement, the lateral stability of the backrest is increased.
  • a boat 100 ' similar in shape and dimensions to the boat 100 of the invention, can be superimposed on said boat of the invention, for example in the case of storage in a stack of superimposed boats, without the mobile backrest 10 causes any congestion due to the additional height it adds in the raised position.
  • the backrest pivots to the lowered position, as indicated on the figure 2b , so that boats equipped with movable files are stored as in the usual case of stacking canoe-kayak type boats.
  • a mobile backrest 10 of a boat does not exceed, at least in the plane of symmetry of the boat, the bearing surface 24 associated with said mobile backrest, so that a boat placed above the boat considered rests locally on said support surface without being hindered by said mobile folder.
  • the lowered position allows this storage of boats in a stack by reducing the height of the stack and without specific handling on the mobile folders and without said mobile records are detached from the bridge.
  • the mobile backrest 10 is previously placed in the lowered position, it is already included in an interior volume 26 of the bridge, as shown in FIG. figure 7 , and does not oppose the sliding of the upper craft.
  • a concavity 121 is formed on the rear face 12 of said movable backrest, figures 3b and 5 .
  • the concavity 121 brings rigidity to the mobile backrest 10 in the zone impacted by the bow 25 and provides initial guidance of the bow 25 of a boat 100 'above which pushes said mobile backrest during stacking and avoids a possible lateral sliding of said bow on the convex surface of the rear face 12 of the mobile backrest.
  • An advantage of the boat 100 according to the invention is that the mobile backrest 10 is inseparable from the bridge 20.
  • This inseparable nature is particularly advantageous on low boats, intended to navigate in more or less agitated conditions and capsizing, the mobile record can not then be lost.
  • the inseparability of the mobile backrest 10 and the bridge 20 does not present any major operational disadvantage because said mobile backrest, being made of a material having characteristics similar to or identical to those of the bridge material 20 , has a durability similar to that of said bridge which it shares stress cycles (exposure to cold, heat, water, ultraviolet radiation ).
  • the assembly is made at a stage of manufacture during which it is possible to deform said mobile backrest and or said deck without risking to damage one or the other.
  • the bridge 20 is deformed at a manufacturing stage where the body of the boat has not yet reached the final rigidity that it must have, the moving backrest. 10 being in its final state with a clean rigidity such that its deformation would lead to damage to said moving backrest.
  • the assembly of the bridge 20 and the mobile backrest 10 is performed in a step following the demolding of said body, before the total cooling thereof, and before it has acquired its final rigidity which makes it dimensionally stable to assemble the mobile file.
  • the boat may comprise a single seat or on the contrary may have more than two seats distributed along the length of the boat, all seats or only a portion of them being provided with a mobile folder as described.
  • the boat may comprise seats arranged side by side and or seats offset longitudinally and laterally.
  • At least one seat of the boat comprises a tub whose fixed backrest 212, made integral with the bridge 20, is of limited height substantially at the edge of said deck, or even whose tub is limited at seat 211 without fixed backrest.
  • the mobile folder 10 is equipped with protrusions in the form of ailerons 19. Said fins, determining at least in part a lower edge 14 of the mobile folder, allow said mobile folder to rely on one or more support surfaces 24 formed on the deck of the boat and arranged laterally at a distance from a longitudinal vertical plane of symmetry of the bridge at the rear of the mobile backrest.
  • a mobile backrest 10 can find support in the raised position on one or a plurality of bearing surfaces of the bridge, located behind the axis A pivot link of said mobile folder.
  • the backrest can be in different variants: rectangular, variable thickness, flattened or curved, with angular or rounded edges.
  • the backrest can also be of solid shape, made with a honeycomb core, for example, provided that the backrest is shaped to perform the functions described in the detailed embodiment.
  • the invention is also presented with a seat whose seat is integrally formed with the bridge, but it is also possible to realize the invention with a seat attached to the bridge, the mobile backrest being in this case still fixed and pivoting on the bridge.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Description

Domaine de l'inventionField of the invention

La présente invention appartient au domaine de la navigation, sportive (le nautisme) ou de loisir (la plaisance). Plus particulièrement, l'invention concerne une embarcation légère de type canoë ou kayak. L'invention est en particulier relative à une embarcation comportant au moins un dossier articulé sur le pont de ladite embarcation.The present invention belongs to the field of navigation, sports (boating) or leisure (boating). More particularly, the invention relates to a light boat of the canoe or kayak type. The invention is in particular relating to a boat comprising at least one backrest articulated on the deck of said boat.

État de la techniqueState of the art

Les embarcations de type canoë ou kayak disposent souvent d'un siège baquet moulé dans le corps de l'embarcation. Pour des raisons d'encombrement et de fabrication, le haut de ces sièges est alors souvent limité à la même hauteur que la partie supérieure du pont de l'embarcation. Cela résulte alors en un dossier relativement petit en hauteur, ne garantissant pas un confort à l'utilisateur et ne supportant qu'une faible portion du bas de son dos. Une navigation prolongée dans ces conditions peut provoquer des douleurs musculaires au niveau du dos.Canoe or kayak type boats often have a bucket seat molded into the body of the boat. For reasons of space and manufacturing, the top of these seats is then often limited to the same height as the upper part of the deck of the boat. This results in a relatively small file height, not ensuring comfort to the user and supporting only a small portion of the lower back. Prolonged navigation in these conditions can cause muscle pain in the back.

Certains dispositifs pallient plus ou moins à ce problème de support du dos lors de la pratique d'activités nautiques. Des dossiers de différentes formes, parfois à usages modulables, ont été incorporés dans des canoës et des kayaks, soit avec des sièges amovibles, soit par montage direct sur le pont. Parfois, des bidons entreposés derrière une assise jouent le rôle et assurent la fonctionnalité principale d'un dossier. Néanmoins, lorsque les éléments rapportés sont fixes, leur encombrement peut s'avérer problématique. Par exemple lorsque plusieurs embarcations doivent être empilées pour leur transport ou leur stockage en dehors des périodes d'utilisation. Dans certaines solutions, des dossiers démontables, pliables ou télescopiques, sont mis en oeuvre pour éviter ce problème. Ces solutions se révèlent souvent peu pratiques et comportent un assemblage de plusieurs pièces mécaniques. Ces dossiers nécessitent souvent un accastillage plus ou moins important, comportant des sangles et des points de fixation. Ces composantes augmentent la vulnérabilité de la structure. Cela entraîne aussi un alourdissement de l'embarcation et une augmentation des coûts de fabrication. Ils augmentent également le risque de vol de ces éléments qui sont facilement démontables, ce qui, à titre de précaution, conduit à leur démontage chaque fois que les conditions d'entreposage ne garantissent pas une sécurité d'accès suffisante.Some devices more or less overcome the problem of back support during the practice of nautical activities. Folders of different shapes, sometimes with modular uses, have been incorporated into canoes and kayaks, either with removable seats or by direct mounting on the deck. Sometimes cans stored behind a seat play the role and provide the main functionality of a folder. However, when the inserts are fixed, their size can be problematic. For example when several boats must be stacked for transport or storage outside periods of use. In some solutions, removable folders, foldable or telescopic, are implemented to avoid this problem. These solutions often prove impractical and include an assembly of several mechanical parts. These folders often require deck fittings more or less important, including straps and attachment points. These components increase the vulnerability of the structure. This also results in a heavier boat and an increase in manufacturing costs. They also increase the risk of theft of these elements that are easily removable, which, as a precaution, leads to their disassembly whenever the storage conditions do not guarantee sufficient access security.

US 2013/0074760 divulgue une embarcation avec un siège avec un dossier mobile. US 2013/0074760 discloses a boat with a seat with a mobile backrest.

Présentation de l'inventionPresentation of the invention

Un objectif de la présente invention est d'apporter une solution aux problèmes de l'art antérieur et propose une embarcation dont un dossier mobile améliore le confort de l'utilisateur sans gêner un stockage empilé de plusieurs embarcations, et qui est maintenu solidaire du pont sans pouvoir être simplement retiré.An object of the present invention is to provide a solution to the problems of the prior art and proposes a boat whose movable backrest improves the comfort of the user without hindering a stacked storage of several boats, and which is kept secured to the bridge without being able to simply be removed.

Pour cela, la présente invention revendiquée concerne une embarcation comprenant un corps principal formé par une enveloppe extérieure assurant la flottabilité, la coque, et une enveloppe complémentaire, le pont, et au moins un siège muni d'un dossier mobile. En outre, le dossier mobile comporte sur ses côtés deux ergots de fixation dont les axes sont sensiblement alignés. Le corps de l'embarcation quant à lui comporte au niveau du pont deux logements réalisés dans la structure dudit pont et dans chacun desquels est placé un ergot de fixation, solidarisant le dossier mobile au pont et formant une liaison pivot qui permette une rotation du dossier mobile entre une position relevée, dans laquelle l'utilisateur peut appuyer son dos sur le dossier, et une position abaissée, dans laquelle le dossier mobile est principalement compris dans un volume intérieur du pont. L'embarcation ainsi obtenue possède un dossier mobile pratique ne nécessitant aucune pièce supplémentaire et garantissant un support efficace pour le dos de l'utilisateur et un rangement sans encombrement de plusieurs embarcations dans une pile.For this, the present invention claimed relates to a boat comprising a main body formed by an outer casing providing buoyancy, the hull, and a complementary casing, the bridge, and at least one seat with a movable backrest. In addition, the mobile backrest has on its sides two lugs whose axes are substantially aligned. The body of the boat has at its deck two housings made in the structure of said bridge and in each of which is placed a fixing lug, securing the mobile backrest to the bridge and forming a pivot connection that allows a rotation of the backrest movable between a raised position, in which the user can press his back on the backrest, and a lowered position, wherein the mobile backrest is mainly included in an interior volume of the bridge. The boat thus obtained has a practical mobile backrest requiring no additional parts and guaranteeing an effective support for the back of the user and a free storage space of several boats in a pile.

L'axe de la liaison pivot entre le dossier mobile et le pont est sensiblement perpendiculaire au plan vertical de symétrie de l'embarcation. Cela permet au dossier d'opérer une rotation transversale entre la position relevée et la position abaissée. En outre, pour une meilleure stabilité du dossier mobile, l'axe de la liaison pivot est situé devant la face avant du dossier mobile quand celui-ci est relevé.The axis of the pivot connection between the mobile backrest and the bridge is substantially perpendicular to the vertical plane of symmetry of the boat. This allows the backrest to rotate transversely between the raised position and the lowered position. In addition, for a better stability of the mobile backrest, the axis of the pivot connection is located in front of the front of the mobile backrest when it is raised.

En position relevée, le dossier mobile dépasse le haut du pont de l'embarcation de sorte que le soutien du dos d'un utilisateur est amélioré en hauteur.In the raised position, the mobile backrest exceeds the top of the deck of the boat so that the support of the back of a user is improved in height.

Dans une forme de réalisation, le siège comporte un dossier fixe dont le bord supérieur est localement au même niveau que le pont de l'embarcation. Dans ce cas, avantageusement, l'assise du siège et le dossier fixe sont formés de manière intégrale avec le pont pour constituer un siège baquet. Cela augmente le confort de l'utilisateur et limite le nombre de pièces de l'embarcation.In one embodiment, the seat has a fixed backrest whose upper edge is locally at the same level as the deck of the boat. In this case, advantageously, the seat and the fixed back seat are formed integrally with the bridge to form a bucket seat. This increases the comfort of the user and limits the number of parts of the boat.

Avantageusement, le pont de l'embarcation comporte une surface d'appui conformée pour que le bord inférieur du dossier mobile se trouve en appui sur ladite surface d'appui lorsque le dossier mobile est en position relevée. Il est ainsi obtenu une position stable du dossier mobile en position relevée. Par conséquent, la surface d'appui forme une butée de l'inclinaison du dossier vers l'arrière.Advantageously, the deck of the boat has a bearing surface shaped so that the lower edge of the mobile backrest is supported on said bearing surface when the mobile backrest is in the raised position. It is thus obtained a stable position of the mobile backrest in the raised position. Therefore, the bearing surface forms a stop of the inclination of the backrest.

Suivant une forme de réalisation, au moins une surface d'appui est sensiblement centrée suivant un axe longitudinal du pont. Il est ainsi obtenu une zone d'appui sensiblement dans l'axe central du dossier assurant la stabilité et la reprise des efforts appliqués au dossier en position relevée.According to one embodiment, at least one bearing surface is substantially centered along a longitudinal axis of the bridge. It is thus obtained a support zone substantially in the central axis of the folder ensuring the stability and recovery efforts applied to the record in the raised position.

Dans une variante de cette forme de réalisation, la surface d'appui est formée avec des dimensions suivant une direction longitudinale X et une direction transversale Y, et une surface, de manière à constituer une assise surélevée de siège lorsque le dossier mobile est abaissé. Dans une telle configuration, l'utilisateur bénéficie d'un meilleur champ de vision quand il est assis sur ladite assise surélevée.In a variant of this embodiment, the bearing surface is formed with dimensions in a longitudinal direction X and a transverse direction Y, and a surface, so as to form a raised seat seat when the mobile backrest is lowered. In such a configuration, the user has a better field of vision when sitting on said raised seat.

Dans une forme de réalisation, la forme du bord supérieur du dossier mobile est complémentaire de la forme de l'assise du siège, le bord supérieur du dossier épouse alors la forme de l'assise en position abaissée. Cela permet aussi de limiter les effets des chocs répétitifs du dossier contre l'assise qui pourraient conduire à un endommagement local de l'assise.In one embodiment, the shape of the upper edge of the mobile backrest is complementary to the shape of the seat of the seat, the upper edge of the folder then marries the shape of the seat in the lowered position. This also limits the effects of repetitive shocks back against the seat that could lead to local damage to the seat.

Avantageusement, le diamètre des ergots de fixation et la distance qui les sépare sont respectivement conformes au diamètre et à la distance entre les logements de sorte que le dossier mobile pivote entre les positions relevée et abaissée sans résistance ni jeu excessifs.Advantageously, the diameter of the fixing lugs and the distance separating them are respectively consistent with the diameter and the distance between them. housings so that the mobile backrest pivots between the raised and lowered positions without excessive resistance or play.

Dans une forme de réalisation, le dossier mobile dispose d'une surface arrière globalement convexe et comportant une concavité centrale qui permet de guider l'étrave d'une autre embarcation lors de l'empilement.In one embodiment, the movable back has a generally convex rear surface and having a central concavity that guides the bow of another boat during stacking.

L'invention concerne également un procédé d'assemblage d'un corps principal et d'un dossier mobile pour constituer une embarcation conforme à l'invention.The invention also relates to a method of assembling a main body and a mobile backrest to form a boat according to the invention.

Suivant le procédé, le corps de l'embarcation est formé dans un matériau polymère thermofusible qui est chauffé pour être fondu ou ramolli puis refroidi.According to the method, the body of the boat is formed of a thermofusible polymer material which is heated to be melted or softened and then cooled.

Le corps de l'embarcation est déformé pour augmenter temporairement la distance entre les logements, à un stade de sa fabrication dans lequel le matériau n'est pas suffisamment refroidi pour maintenir une forme finale voulue du corps, puis le dossier mobile préalablement réalisé est placé avec les ergots de fixation dans les logements du pont, puis le corps est reformé entièrement dans sa forme finale voulue avant refroidissement complet.The body of the boat is deformed to temporarily increase the distance between the housing, at a stage of its manufacture in which the material is not sufficiently cooled to maintain a desired final shape of the body, and then the previously made movable backrest is placed with the fixing lugs in the housing of the bridge, then the body is reformed entirely in its desired final form before complete cooling.

Le pont et le dossier mobile se trouve ainsi assemblés dans l'embarcation sans effort particulier et sans risquer d'endommager le pont, ou le dossier, ou les deux, s'il était tenté de les assembler lorsque le corps de l'embarcation est refroidi en raison de la rigidité qu'il a alors acquise.The deck and the mobile backrest are thus assembled in the boat without any particular effort and without risking damaging the deck, or the backrest, or both, if it was tempting to assemble them when the body of the boat is cooled because of the stiffness that he then acquired.

Brève description des figuresBrief description of the figures

L'invention sera mieux comprise à la lecture de la description qui suit et à l'examen des figures qui l'accompagnent. Celles-ci ne sont présentées qu'à titre indicatif et nullement limitatif de l'invention.

  • Fig. 1a et 1b sont des illustrations en perspectives de l'embarcation quand le dossier mobile est relevĂ©.
    • Fig. 1a est une vue d'ensemble de l'invention.
    • Fig. 1b est une vue dĂ©taillĂ©e du dossier mobile et du siège du pont.
  • Fig. 2a et 2b sont des illustrations en perspectives de l'embarcation quand le dossier mobile est abaissĂ©.
    • Fig. 2a est une vue d'ensemble de l'invention.
    • Fig. 2b est une vue dĂ©taillĂ©e du dossier mobile et du siège du pont.
  • Fig. 3a et 3b sont des vues dĂ©taillĂ©es en perspectives d'un dossier mobile, montrant ses diffĂ©rentes parties constitutives, selon deux orientations diffĂ©rentes.
  • Fig. 4 est une vue de dĂ©tail montrant en perspective une fixation pivotante entre le dossier mobile et le pont, le dossier mobile Ă©tant illustrĂ© dĂ©solidarisĂ© du pont.
    Fig. 4a est une schématisation de la liaison pivot avec les différentes parties des pièces.
  • Fig. 5 reprĂ©sente schĂ©matiquement la phase d'empilement de deux embarcations pendant laquelle une embarcation est glissĂ©e sur une autre, au moment ou l'Ă©trave de l'embarcation supĂ©rieure entraĂ®ne le basculement du dossier mobile de l'embarcation infĂ©rieure.
  • Fig. 6 reprĂ©sente en vue de profil deux embarcations empilĂ©es, les dossiers mobiles Ă©tant rabattus.
  • Fig. 7 reprĂ©sente une coupe transversale du corps d'une embarcation au niveau d'un siège montrant un volume intĂ©rieur du pont et le dossier mobile dans la position relevĂ©e, Ă  gauche, et dans la position abaissĂ©e, Ă  droite.
  • Fig. 8 est une coupe longitudinale de l'embarcation, sensiblement dans un plan vertical axial, illustrant un exemple d'embarcation avec deux sièges alignĂ©s suivant la longueur de l'embarcation.
  • Fig. 9 reprĂ©sente en vue de dessous une variante de dossier mobile Ă©quipĂ©e d'ailerons d'appui.
The invention will be better understood on reading the description which follows and on examining the figures which accompany it. These are presented only as an indication and in no way limitative of the invention.
  • Fig. 1a and 1b are illustrations in perspective of the boat when the mobile record is raised.
    • Fig. 1a is an overview of the invention.
    • Fig. 1b is a detailed view of the mobile backrest and the seat of the bridge.
  • Fig. 2a and 2b are illustrations in perspective of the boat when the mobile backrest is lowered.
    • Fig. 2a is an overview of the invention.
    • Fig. 2b is a detailed view of the mobile backrest and the seat of the bridge.
  • Fig. 3a and 3b are detailed perspective views of a mobile record, showing its different constituent parts, according to two different orientations.
  • Fig. 4 is a detail view showing in perspective a pivoting attachment between the mobile backrest and the bridge, the movable backrest being shown disengaged from the bridge.
    Fig. 4a is a schematization of the pivot connection with the different parts of the pieces.
  • Fig. 5 schematically represents the stacking phase of two boats during which a boat is slid on another, at the moment when the bow of the upper boat causes the tilting of the mobile backrest of the lower boat.
  • Fig. 6 represents in profile view two stacked boats, the mobile files being folded down.
  • Fig. 7 represents a cross-section of the body of a boat at a seat showing an interior volume of the deck and the mobile backrest in the raised position, on the left, and in the lowered position, on the right.
  • Fig. 8 is a longitudinal section of the boat, substantially in an axial vertical plane, illustrating an example of a boat with two seats aligned along the length of the boat.
  • Fig. 9 represents in view from below a variant of mobile backrest equipped with support fins.

Sur un même dessin les différentes parties ne sont pas nécessairement représentées à la même échelle et les différents dessins ne sont pas nécessairement à la même échelle. Sur les différents dessins des éléments similaires ayant les mêmes fonctions, même de forme différente, portent le même repère.On the same drawing the different parts are not necessarily represented on the same scale and the different drawings are not necessarily on the same scale. On the different drawings similar elements having the same functions, even of different shape, carry the same mark.

Description détaillée d'un mode de réalisationDetailed description of an embodiment

La figure 1a montre à titre d'exemple une embarcation 100, ici un canoë, comportant principalement un corps, formé par un pont 20 et une coque 30, et deux sièges baquets 21a et 21b formés dans une structure du pont, chaque siège comportant en outre un dossier mobile 10 fixé audit pont.The figure 1a shows by way of example a boat 100, here a canoe, comprising mainly a body, formed by a bridge 20 and a hull 30, and two bucket seats 21a and 21b formed in a bridge structure, each seat further comprising a movable backrest 10 attached to said bridge.

Le pont 20 de l'embarcation, représenté sur les figures 1a et 1b, est composé d'une structure principale et possède un plan de symétrie vertical d'ensemble. Le pont de l'exemple illustré comporte deux sièges baquets, le siège avant 21a formant le siège avant selon le sens d'avancement usuel de l'embarcation qui correspond au sens des X croissants sur la figure 1a, et le siège arrière 21b se trouvant derrière le siège avant. Lesdits sièges sont formés chacun, par une assise et une partie inférieure du dossier, de manière intégrale dans la structure du pont et comportent chacun, en outre, un dossier mobile 10 articulé sur le pont.The deck 20 of the boat, shown on the Figures 1a and 1b , is composed of a main structure and has an overall vertical symmetry plane. The bridge of the illustrated example comprises two bucket seats, the front seat 21a forming the front seat according to the usual direction of travel of the boat which corresponds to the direction of the X croissants on the figure 1a and the rear seat 21b behind the front seat. Said seats are each formed, by a seat and a lower part of the backrest, integrally in the bridge structure and each further comprise a movable backrest 10 articulated on the bridge.

Dans la suite de la description, les termes « avant », « arrière », « haut », « bas » et les expressions qui peuvent leurs être associées seront comprises, sauf précision ou évidence contraire, comme ayant le sens que leur donnerait un utilisateur de l'embarcation dans une position normale de navigation. Compte tenu du système d'axe représenté sur la figure 1a, l'avant est situé sur l'embarcation du côté des X positifs et le haut est situé sur l'embarcation du côté des Z positifs.In the remainder of the description, the terms "before", "backward", "up", "down" and expressions that may be associated with them will be understood, unless otherwise stated or proven otherwise, as having the meaning that a user would give them of the boat in a normal position of navigation. Given the axis system represented on the figure 1a , the bow is on the boat on the positive X side and the top is on the boat on the positive Z side.

La figure 1b illustre un siège baquet 21, qui peut être le siège avant 21a ou le siège arrière 21b de l'embarcation de la figure 1a, avec son dossier mobile 10 en position relevée et laissant apparentes les autres parties du siège. Le siège 21 comporte une assise 211 ergonomique, creuse et courbée offrant un support ergonomique des cuisses d'un utilisateur, et un dossier composé dans l'exemple illustré de deux parties distinctes. Un dossier fixe 212, pour une partie inférieure, formant le bas du dossier et situé dans une continuité de l'assise 211, essentiellement sous la partie supérieure du pont de l'embarcation, et un dossier mobile 10, pour une partie supérieure, formant le haut du dossier quand il est en position relevée comme sur le détail de la figure 1b.The figure 1b illustrates a bucket seat 21, which may be the front seat 21a or the rear seat 21b of the boat of the figure 1a , with its mobile backrest 10 in the raised position and leaving visible the other parts of the seat. The seat 21 comprises an ergonomic seat 211, hollow and curved providing ergonomic support for the thighs of a user, and a folder composed in the illustrated example of two separate parts. A fixed back 212, for a lower part, forming the bottom of the file and located in a continuity of the seat 211, essentially under the upper part of the deck of the boat, and a movable backrest 10, for an upper part, forming the top of the backrest when it is in the raised position as on the detail of the figure 1b .

Le dossier mobile 10, représenté isolément sur les figures 3a et 3b, est sensiblement symétrique de même plan de symétrie vertical que le corps de l'embarcation et comprend une face avant 11 de forme adaptée pour servir d'appui au dos d'un utilisateur, et une face arrière 12, à l'opposée de la face avant. Le dossier mobile 10 comporte aussi un bord supérieur 13 formant le haut du dossier, et un bord inférieur 14 formant le bas du dossier.The mobile file 10, shown separately on the Figures 3a and 3b , is substantially symmetrical with the same plane of vertical symmetry as the body of the boat and comprises a front face 11 of shape adapted to serve as a support for the back of a user, and a rear face 12, the opposite of the front face. The mobile backrest 10 also has an upper edge 13 forming the top of the folder, and a lower edge 14 forming the bottom of the folder.

Le haut et le bas du dossier mobile sont par convention définis, suivant le sens donné supra à ces termes, lorsque le dossier mobile est relevé et dans une position d'utilisation en tant que dossier par un occupant du siège 21.The top and bottom of the mobile backrest are conventionally defined, in the sense given above supra, when the mobile backrest is raised and in a position of use as a folder by a seat occupant 21.

De plus, le dossier 10 dispose de deux côtés, 15 et 16, sur chacun desquels se trouve un ergot de fixation, respectivement 17 et 18.In addition, the backrest 10 has two sides, 15 and 16, on each of which is a fixing lug, respectively 17 and 18.

Dans le mode de réalisation illustré, le dossier mobile 10 a une forme légèrement trapézoïdale et concave pour un meilleur maintien du dos de l'utilisateur.In the illustrated embodiment, the mobile backrest 10 has a slightly trapezoidal and concave shape for better support of the user's back.

Le pont 20 comporte deux logements, 22 et 23, associés au siège 21 pour maintenir le dossier mobile 10 par les ergots de fixation 17 et 18 dudit dossier mobile inséré dans lesdits logements. Dans chacun desdits logements est placé un ergot de fixation.The bridge 20 comprises two housings, 22 and 23, associated with the seat 21 to maintain the mobile backrest 10 by the attachment lugs 17 and 18 of said movable backrest inserted in said housing. In each of said housings is placed a fixing lug.

La figure 4 montre un de ces logements, le dossier mobile étant représenté avec l'ergot de fixation 17 dégagé du logement 22 dans lequel il est normalement inséré. Chaque logement est, dans l'exemple illustré, une cavité cylindrique de section circulaire, réalisée dans la structure du pont, d'un diamètre adapté pour recevoir un ergot de fixation du dossier lors de l'assemblage et former une liaison pivot. Les axes des deux liaisons pivots ainsi formées sont sensiblement confondus et déterminent un axe transversal A de rotation du dossier mobile, sensiblement suivant la direction de l'axe Y perpendiculaire au plan de symétrie vertical XZ du corps de l'embarcation, comme représenté sur le détail de la figure 2b, de sorte que le dossier est en mesure de pivoter autour de ces axes.The figure 4 shows one of these housing, the movable backrest being shown with the fixing lug 17 clear of the housing 22 in which it is normally inserted. Each housing is, in the illustrated example, a cylindrical cavity of circular section, made in the bridge structure, of a diameter adapted to receive a fixing lug of the backrest during assembly and form a pivot connection. The axes of the two pivot links thus formed are substantially merged and determine a transverse axis A of rotation of the mobile backrest substantially in the direction of the Y axis perpendicular to the vertical plane of symmetry XZ of the body of the boat, as shown in FIG. detail of the figure 2b , so that the backrest is able to rotate around these axes.

La position de l'axe transversal A est sur le dossier mobile 10 déportée vers l'avant par rapport à la face avant 11 du dossier mobile, lorsque le dossier mobile est dans la position relevée, de sorte que la plus grande partie d'un volume du dossier mobile 10, et de sa masse, se trouve derrière l'axe transversal A en position relevée dudit dossier mobile et se trouve devant l'axe transversal A en position abaissée dudit dossier mobile. Il résulte de cet agencement que le dossier mobile 10 est naturellement stable dans les deux positions relevée et abaissée comme il sera compris de la description ultérieure de la mise en oeuvre de l'embarcation et dudit dossier mobile.The position of the transverse axis A is on the mobile backrest 10 offset towards the front relative to the front face 11 of the mobile backrest, when the mobile backrest is in the raised position, so that the greater part of a volume of the mobile backrest 10, and its mass, is behind the transverse axis A in the raised position of said mobile backrest and is in front of the transverse axis A in the lowered position of said mobile folder. As a result of this arrangement, the mobile backrest 10 is naturally stable in both raised and lowered positions. as will be understood from the subsequent description of the implementation of the boat and said mobile record.

Selon le mode de réalisation illustré, les ergots de fixation 17 et 18 sont de forme cylindrique à section circulaire, chanfreinés à leurs extrémités libres pour faciliter leur insertion dans les logements 22 et 23.According to the illustrated embodiment, the fixing lugs 17 and 18 are cylindrical in shape with a circular section, chamfered at their free ends to facilitate their insertion into the housings 22 and 23.

Dans ce mode de réalisation, le dossier mobile 10 est articulé sans serrage sur le pont 20 de manière à pouvoir pivoter autour de l'axe transversal A, illustré sur la figure 5, avec un jeu minimum.In this embodiment, the mobile backrest 10 is hinged loosely on the bridge 20 so as to be pivotable about the transverse axis A, shown in FIG. figure 5 , with a minimum game.

Le logement cylindrique, à l'opposé d'une ouverture 222 débouchant sur une surface du pont 20 et par laquelle est inséré l'ergot de fixation, se termine par un fond 221 matérialisé par la base du cylindre, voir figure 4a. Dans un mode de réalisation illustré, une profondeur du logement hl est sensiblement égale à une longueur hd de l'ergot.The cylindrical housing, opposite an opening 222 opening on a surface of the bridge 20 and through which is inserted the fixing lug, ends with a bottom 221 materialized by the base of the cylinder, see figure 4a . In an illustrated embodiment, a depth of the housing h l is substantially equal to a length h d of the lug.

Dans le mode de réalisation illustré, le dossier mobile 10 est de forme creuse, délimité par une paroi déterminant les surfaces extérieures dudit dossier mobile, ce qui limite considérablement la quantité de matière formant ledit dossier mobile, et donc sa masse, et participe à la flottabilité de l'embarcation. Dans cette forme de réalisation, le dossier mobile 10 est avantageusement muni d'une ouverture capillaire 142 débouchant sur le bord inférieur 14 dudit dossier mobile, voir figure 3b. Ladite ouverture capillaire évite que de l'eau remplisse le volume intérieur du dossier tout en permettant à l'air de circuler entre l'intérieur et l'extérieur dudit dossier afin de préserver la structure du dossier contre la fatigue que génèrent les dilatations et compressions du gaz intérieur sous l'effet du cycle de température.In the illustrated embodiment, the mobile backrest 10 is hollow in shape, delimited by a wall defining the outer surfaces of said mobile backrest, which considerably limits the amount of material forming said mobile backrest, and therefore its mass, and contributes to the buoyancy of the boat. In this embodiment, the mobile backrest 10 is advantageously provided with a capillary opening 142 opening on the lower edge 14 of said mobile backrest, see figure 3b . Said capillary aperture prevents water from filling the interior volume of the backrest while allowing air to circulate between the inside and the outside of said backrest in order to preserve the structure of the backrest against the fatigue caused by the dilations and compressions internal gas under the effect of the temperature cycle.

Le dossier mobile 10 est par exemple réalisé dans un matériau ayant une tenue mécanique adaptée aux efforts subis par l'embarcation et à l'environnement de son utilisation. Ce matériau est par exemple un polyéthylène, matériau qui peut-être celui avec lequel est également réalisée le corps de l'embarcation 20.The mobile backrest 10 is for example made of a material having a mechanical strength adapted to the forces experienced by the boat and the environment of its use. This material is, for example, a polyethylene material which may be the one with which the body of the boat 20 is also made.

Le dossier 10 pivote autour de l'axe transversal A entre deux positions extrêmes. La position relevée, figures 1a et 1b et la position abaissée, figures 2a et 2b.The backrest 10 pivots around the transverse axis A between two extreme positions. The raised position, Figures 1a and 1b and the lowered position, Figures 2a and 2b .

La position relevée est utilisée pour soutenir le dos d'un utilisateur. Cette position est réalisée quand le bord inférieur 14 du dossier mobile 10 est en appui sur une surface d'appui 24 du pont 20 formée derrière le dossier fixe 212. La surface d'appui 24 forme une butée arrière pour la liaison pivot entre le dossier mobile et le pont, voir figures 1b et 2b.The raised position is used to support the back of a user. This position is achieved when the lower edge 14 of the mobile backrest 10 is supported on a bearing surface 24 of the bridge 20 formed behind the fixed backrest 212. The bearing surface 24 forms a rear stop for the pivot connection between the backrest mobile and the bridge, see Figures 1b and 2b .

Dans ce mode de réalisation, le bord inférieur du dossier mobile ainsi que la surface d'appui du pont, ont sensiblement des formes similaires. La surface d'appui 24 a une largeur au moins égale à celle du bord inférieur 14 pour que ce dernier puisse reposer de manière stable et reprendre les efforts plus efficacement.In this embodiment, the lower edge of the mobile backrest and the bearing surface of the bridge, have substantially similar shapes. The bearing surface 24 has a width at least equal to that of the lower edge 14 so that the latter can rest stably and resume the efforts more effectively.

Dans le mode de réalisation décrit, la surface d'appui 24 sur laquelle repose le dossier mobile 10 en position relevée, est déportée vers l'arrière par rapport aux emplacements des liaisons pivots, en accord avec la forme géométrique dudit dossier mobile, pour une meilleure stabilité et pour mieux résister au couple généré par le dos de l'utilisateur.In the embodiment described, the bearing surface 24 on which the mobile backrest 10 is resting in the raised position, is offset rearward with respect to the locations of the pivot links, in accordance with the geometric shape of said mobile backrest, for a better stability and to better resist the torque generated by the back of the user.

Dans un mode de réalisation, la surface d'appui 24 sur laquelle repose le dossier mobile 10 en position relevée présente une extension vers l'arrière suffisante pour former une assise surélevée 27 de surface suffisante lorsque le dossier mobile 10 est abaissé, voir figure 8. Ainsi, un utilisateur de l'embarcation peut s'asseoir sur l'assise surélevée 27, lorsque le dossier mobile 10 est placé en position abaissée, de sorte à bénéficier, par sa position surélevée, d'un meilleur champ de vision. Une telle configuration est très utile par exemple pour un moniteur devant surveiller des élèves, en particulier répartis dans plusieurs embarcations.In one embodiment, the support surface 24 on which the mobile backrest 10 in the raised position rests has sufficient rearward extension to form a raised seat 27 of sufficient surface area when the mobile backrest 10 is lowered, see figure 8 . Thus, a user of the boat can sit on the raised seat 27, when the mobile backrest 10 is placed in the lowered position, so as to benefit, by its elevated position, a better field of view. Such a configuration is very useful for example for a monitor to monitor students, especially distributed in several boats.

Dans la position abaissée le dossier mobile 10 est basculé vers l'avant et le bord supérieur 13 du dossier mobile 10 repose sur la surface de l'assise 211 du siège 21 de l'embarcation, figure 2b. Avantageusement, le bord supérieur 13 du dossier mobile possède une forme optimisée pour épouser la forme de l'assise 211 au niveau d'une zone de contact ce qui permet de réduire l'impact de chocs répétés dudit bord supérieur du dossier mobile sur la surface de l'assise 211.In the lowered position the mobile backrest 10 is tilted forwards and the upper edge 13 of the mobile backrest 10 rests on the surface of the seat 211 of the seat 21 of the boat, figure 2b . Advantageously, the upper edge 13 of the mobile backrest has a shape optimized to match the shape of the seat 211 at a contact area which reduces the impact of repeated shocks of said upper edge of the mobile backrest on the surface of the seat 211.

En utilisation relevée du dossier 10, on obtient un dossier d'embarcation comportant le dossier fixe 212 du siège baquet 21 et le dossier mobile 10 qui est alors le prolongement en hauteur du dossier fixe.When using the backrest 10, a boat record is obtained comprising the fixed backrest 212 of the bucket seat 21 and the mobile backrest 10 which is then the extension in height of the fixed backrest.

Le confort de l'utilisateur est principalement assuré par la hauteur supplémentaire de dossier que procure le dossier mobile 10 en position relevée.The comfort of the user is mainly ensured by the additional height of the backrest that provides the mobile backrest 10 in the raised position.

Dans la forme de réalisation illustrée, le bord inférieur 14 du dossier mobile 10 comporte une nervure 141 sensiblement dans le plan de symétrie vertical dans l'exemple représentée sur la figure 3b. La surface d'appui 24 du pont comporte dans cette forme de réalisation une rainure 241 comme illustré sur la figure 2b dont la position, la forme et les dimensions sont adaptées pour accueillir la nervure 141 lorsque le dossier mobile est en position relevée. Il résulte de cet agencement une augmentation de la stabilité latérale du dossier.In the illustrated embodiment, the lower edge 14 of the mobile backrest 10 has a rib 141 substantially in the vertical plane of symmetry in the example shown in FIG. figure 3b . The bearing surface 24 of the bridge comprises in this embodiment a groove 241 as shown in FIG. figure 2b whose position, shape and dimensions are adapted to accommodate the rib 141 when the mobile backrest is in the raised position. As a result of this arrangement, the lateral stability of the backrest is increased.

Dans la forme de réalisation décrite, une embarcation 100', de forme et dimensions similaires à l'embarcation 100 de l'invention, peut être superposée à ladite embarcation de l'invention, par exemple dans le cas d'un rangement dans une pile d'embarcations superposées, sans que le dossier mobile 10 ne cause un quelconque encombrement dû à la hauteur supplémentaire qu'il rajoute en position relevée. Pour ce faire, le dossier pivote vers la position abaissée, comme indiqué sur la figure 2b, de sorte que des embarcations munies de dossiers mobiles se rangent comme dans le cas usuel d'empilement des embarcations de type canoë kayak.In the embodiment described, a boat 100 ', similar in shape and dimensions to the boat 100 of the invention, can be superimposed on said boat of the invention, for example in the case of storage in a stack of superimposed boats, without the mobile backrest 10 causes any congestion due to the additional height it adds in the raised position. To do this, the backrest pivots to the lowered position, as indicated on the figure 2b , so that boats equipped with movable files are stored as in the usual case of stacking canoe-kayak type boats.

Dans la position abaissée, un dossier mobile 10 d'une embarcation ne dépasse pas, au moins dans le plan de symétrie de l'embarcation, la surface d'appui 24 associée audit dossier mobile, de sorte qu'une embarcation placée au dessus de l'embarcation considérée repose localement sur ladite surface d'appui sans être gênée par ledit dossier mobile.In the lowered position, a mobile backrest 10 of a boat does not exceed, at least in the plane of symmetry of the boat, the bearing surface 24 associated with said mobile backrest, so that a boat placed above the boat considered rests locally on said support surface without being hindered by said mobile folder.

La position abaissée, comme représenté dans les figures 2a et 2b, permet ce rangement d'embarcations dans une pile en réduisant la hauteur de la pile et sans manipulation spécifique sur les dossiers mobiles et sans que lesdits dossiers mobiles ne soient désolidarisés du pont.The lowered position, as shown in Figures 2a and 2b , allows this storage of boats in a stack by reducing the height of the stack and without specific handling on the mobile folders and without said mobile records are detached from the bridge.

Dans un mode de mise en oeuvre pour former une pile d'embarcation, l'étrave 25 de l'embarcation 100' supérieure devant être superposée à une embarcation 100 inférieure, comme représenté sur la figure 5, est placée sur l'arrière de l'embarcation inférieure déjà placée et on la fait glisser jusqu'à la position superposée représentée sur la figure 6.In one embodiment for forming a boat stack, the bow 25 of the boat 100 'upper to be superimposed on a boat 100 below, as shown on the figure 5 , is placed on the rear of the lower boat already placed and is dragged to the superimposed position shown on the figure 6 .

Si le dossier mobile 10 est préalablement mis en position abaissée, il se trouve déjà inclus dans un volume intérieur 26 du pont, comme représenté sur la figure 7, et ne s'oppose pas au glissement de l'embarcation supérieure.If the mobile backrest 10 is previously placed in the lowered position, it is already included in an interior volume 26 of the bridge, as shown in FIG. figure 7 , and does not oppose the sliding of the upper craft.

Si le dossier mobile 10 d'une embarcation 100 inférieure est en position relevée, il bascule automatiquement dans la position abaissée lorsque ledit dossier mobile est poussé par une étrave 25 de l'embarcation 100' supérieure. Pour faciliter le basculement automatique d'un dossier mobile 10 lors de l'empilement, une concavité 121 est formée sur la face arrière 12 dudit dossier mobile, figures 3b et 5. La concavité 121 apporte une rigidité au dossier mobile 10 dans la zone impactée par l'étrave 25 et assure un guidage initial de l'étrave 25 d'une embarcation 100' supérieure qui vient pousser ledit dossier mobile lors de l'empilement et évite un éventuel glissement latéral de ladite étrave sur la surface convexe de la face arrière 12 du dossier mobile.If the movable backrest 10 of a lower boat 100 is in the raised position, it automatically switches to the lowered position when said mobile backrest is pushed by a bow 25 of the upper boat 100 '. To facilitate the automatic tilting of a mobile backrest 10 during stacking, a concavity 121 is formed on the rear face 12 of said movable backrest, figures 3b and 5 . The concavity 121 brings rigidity to the mobile backrest 10 in the zone impacted by the bow 25 and provides initial guidance of the bow 25 of a boat 100 'above which pushes said mobile backrest during stacking and avoids a possible lateral sliding of said bow on the convex surface of the rear face 12 of the mobile backrest.

Un avantage de l'embarcation 100 suivant l'invention tient en ce que le dossier mobile 10 est inséparable du pont 20.An advantage of the boat 100 according to the invention is that the mobile backrest 10 is inseparable from the bridge 20.

Ce caractère inséparable est particulièrement avantageux sur les embarcations basses, destinées à naviguer dans des conditions plus ou moins agitées et pouvant chavirer, le dossier mobile ne pouvant alors pas être perdu.This inseparable nature is particularly advantageous on low boats, intended to navigate in more or less agitated conditions and capsizing, the mobile record can not then be lost.

Il est également avantageux pour éviter qu'un dossier mobile soit égaré après avoir été retiré, voire volé de l'embarcation.It is also advantageous to prevent a mobile file is lost after being removed or stolen from the boat.

Il doit être noté que l'inséparabilité du dossier mobile 10 et du pont 20 ne présente pas d'inconvénient opérationnel majeur du fait que ledit dossier mobile, en étant réalisé dans un matériau présentant des caractéristiques voisines sinon identiques à celles du matériau du pont 20, présente une durabilité similaire à celle dudit pont dont il partage les cycles de stress (exposition au froid, à la chaleur, à l'eau, aux rayonnements ultraviolets...).It should be noted that the inseparability of the mobile backrest 10 and the bridge 20 does not present any major operational disadvantage because said mobile backrest, being made of a material having characteristics similar to or identical to those of the bridge material 20 , has a durability similar to that of said bridge which it shares stress cycles (exposure to cold, heat, water, ultraviolet radiation ...).

Cette inséparabilité tient, au moins en partie, en ce que le dossier mobile 10 d'une part, et le pont 20 d'autre part, sont relativement indéformables, sans endommager le dossier mobile et ou le pont, sous les efforts usuels lors de la navigation ou lors de manipulations.This inseparability holds, at least in part, in that the mobile backrest 10 on the one hand, and the bridge 20 on the other hand, are relatively indeformable, without damage the mobile backrest and / or the deck, under the usual efforts during navigation or during handling.

Afin d'assembler le dossier mobile 10 et le pont 20 lors de la fabrication de l'embarcation, l'assemblage est réalisé à un stade de la fabrication pendant lequel il est possible de déformer ledit dossier mobile et ou ledit pont sans risquer d'endommager l'un ou l'autre.In order to assemble the mobile backrest 10 and the deck 20 during the manufacture of the boat, the assembly is made at a stage of manufacture during which it is possible to deform said mobile backrest and or said deck without risking to damage one or the other.

Dans le mode de mise en oeuvre d'un procédé d'assemblage, le pont 20 est déformé à un stade de fabrication où le corps de l'embarcation n'a pas encore atteint la rigidité finale qu'il doit avoir, le dossier mobile 10 étant dans son état final avec une rigidité propre telle que sa déformation conduirait à un endommagement dudit dossier mobile.In the embodiment of an assembly method, the bridge 20 is deformed at a manufacturing stage where the body of the boat has not yet reached the final rigidity that it must have, the moving backrest. 10 being in its final state with a clean rigidity such that its deformation would lead to damage to said moving backrest.

Dans le cas d'un corps d'embarcation réalisé dans un matériau polymère formé à chaud, l'assemblage du pont 20 et du dossier mobile 10 est réalisé dans une étape suivant le démoulage dudit corps, avant le refroidissement total de celui-ci, et avant qu'il n'ait acquis sa rigidité finale qui le rend indéformable pour assembler le dossier mobile.In the case of a boat body made of a hot-formed polymer material, the assembly of the bridge 20 and the mobile backrest 10 is performed in a step following the demolding of said body, before the total cooling thereof, and before it has acquired its final rigidity which makes it dimensionally stable to assemble the mobile file.

Lorsque le pont 20 est refroidi à la température ambiante qui correspond à une température d'utilisation, il n'est plus possible, en pratique de démonter le dossier mobile du pont sans endommager l'un ou l'autre ou les deux.When the bridge 20 is cooled to room temperature which corresponds to a temperature of use, it is no longer possible, in practice to disassemble the mobile backrest deck without damaging one or the other or both.

La forme de réalisation d'une embarcation suivant l'invention correspondant aux illustrations et décrite de manière détaillée n'est pas limitative de l'invention. L'homme du métier adaptera sans difficulté les principes exposés d'une embarcation comportant au moins un dossier mobile à des agencements d'embarcation différents.The embodiment of a boat according to the invention corresponding to the illustrations and described in detail is not limiting of the invention. The skilled person will easily adapt the principles of a boat having at least one mobile record to different boat arrangements.

Ainsi l'embarcation peut comporter un seul siège ou au contraire peut comporter plus de deux sièges répartis suivant la longueur de l'embarcation, tous les sièges ou seulement une parties d'entre eux étant pourvus d'un dossier mobile tel que décrit.Thus the boat may comprise a single seat or on the contrary may have more than two seats distributed along the length of the boat, all seats or only a portion of them being provided with a mobile folder as described.

Egalement, l'embarcation peut comporter des sièges agencés côte à côte et ou des sièges décalés longitudinalement et latéralement.Also, the boat may comprise seats arranged side by side and or seats offset longitudinally and laterally.

Dans une forme de réalisation, au moins un siège de l'embarcation comporte un baquet dont le dossier fixe 212, réalisé de manière intégrale avec le pont 20, est de hauteur limitée sensiblement au niveau du bord dudit pont, voire dont le baquet est limité à l'assise 211 sans dossier fixe.In one embodiment, at least one seat of the boat comprises a tub whose fixed backrest 212, made integral with the bridge 20, is of limited height substantially at the edge of said deck, or even whose tub is limited at seat 211 without fixed backrest.

Dans ce dernier cas, il est formé un espace vide sous le dossier mobile 10 qui n'est alors pas en mesure de prendre appui en position relevée sur une surface située en arrière du dossier fixe.In the latter case, an empty space is formed under the mobile backrest 10 which is then unable to bear in the raised position on a surface located behind the fixed backrest.

Avantageusement, dans ce cas, comme représenté sur la figure 9 d'un dossier mobile isolé, le dossier mobile 10 est équipé d'excroissances en forme d'ailerons 19. Lesdits ailerons, déterminant au moins en partie un bord inférieur 14 du dossier mobile, permettent audit dossier mobile de prendre appui sur une ou des surfaces d'appui 24 formées sur le pont de l'embarcation et agencées latéralement à distance d'un plan vertical longitudinal de symétrie du pont à l'arrière du dossier mobile. D'une manière générale, un dossier mobile 10 peut trouver appui en position relevée sur une seule ou sur une pluralité de surfaces d'appui du pont, situées en arrière de l'axe A de liaison pivot dudit dossier mobile.Advantageously, in this case, as represented on the figure 9 an isolated mobile folder, the mobile folder 10 is equipped with protrusions in the form of ailerons 19. Said fins, determining at least in part a lower edge 14 of the mobile folder, allow said mobile folder to rely on one or more support surfaces 24 formed on the deck of the boat and arranged laterally at a distance from a longitudinal vertical plane of symmetry of the bridge at the rear of the mobile backrest. In general, a mobile backrest 10 can find support in the raised position on one or a plurality of bearing surfaces of the bridge, located behind the axis A pivot link of said mobile folder.

Le dossier peut se présenter sous différentes variantes : rectangulaire, d'épaisseur variable, aplati ou courbé, avec des bords anguleux ou arrondis. Le dossier peut aussi être de forme pleine, fabriqué avec un noyau en mousse alvéolaire par exemple, pour autant que le dossier soit conformé pour réaliser les fonctions décrites dans le mode de réalisation détaillé.The backrest can be in different variants: rectangular, variable thickness, flattened or curved, with angular or rounded edges. The backrest can also be of solid shape, made with a honeycomb core, for example, provided that the backrest is shaped to perform the functions described in the detailed embodiment.

L'invention est également présentée avec un siège dont l'assise est formée de manière intégrale avec le pont, mais il est également possible de réaliser l'invention avec un siège rapporté sur le pont, le dossier mobile étant dans ce cas toujours fixé et pivotant sur le pont.The invention is also presented with a seat whose seat is integrally formed with the bridge, but it is also possible to realize the invention with a seat attached to the bridge, the mobile backrest being in this case still fixed and pivoting on the bridge.

Il est ainsi obtenu des embarcations, en particulier des embarcations de sport et de loisir de type canoë ou kayak, dont le confort d'un utilisateur est amélioré par l'utilisation d'un dossier mobile dans une position relevée et qui s'efface dans une position repliée par une action simple de l'utilisateur ou lors d'opérations d'empilage d'embarcations, le dossier mobile restant à demeure sur l'embarcation sans risque particulier d'être endommagé, perdu ou dérobé.It is thus obtained boats, especially sports boats and recreational canoe or kayak type, the comfort of a user is improved by the use of a mobile backrest in a raised position and which disappears in a position folded by a simple action of the user or during piling operations of boats, the mobile record remaining permanently on the boat without particular risk of being damaged, lost or stolen.

Claims (15)

  1. Watercraft (100) comprising a deck (20) and a hull (30) and including at least one seat, said at least one seat including a movable backrest (10), characterised in that:
    a. the movable backrest (10) includes two fastening lugs (17, 18) arranged on sides (15, 16) of said movable backrest, axes of said fastening lugs being substantially aligned;
    b. the deck includes two recesses (22, 23) produced in the structure of said deck, associated with said at least one seat and arranged above a base of said at least one seat, a fastening lug (17, 18) being positioned in each of said recesses;
    c. said fastening lugs and said recesses form a pivot link of axis A securing the movable backrest to the deck and enabling a rotation of the movable backrest (10) between at least one raised position of said movable backrest, wherein a user of the seat may rest his/her back on said movable backrest, and at least one lowered position, wherein said movable backrest is essentially contained in an internal volume (26) of the deck.
  2. Watercraft according to claim 1, wherein a direction of the axis A of the pivot link is substantially perpendicular to a vertical plane of longitudinal symmetry of said watercraft.
  3. Watercraft according to claim 1 or claim 2 wherein the pivot link axis A of the movable backrest (10) is situated on said movable backrest in front of a front face (11) of said movable backrest, on which front face a user of the watercraft may rest his/her back, when said movable backrest is in the raised position.
  4. Watercraft according to one of the preceding claims, wherein the movable backrest (10) forms, in the raised position, an upper part of the backrest projecting, at least in part, from the deck (20).
  5. Watercraft according to one of the preceding claims, wherein the seat includes a fixed backrest (212) in a lower part, inside the deck (20), an upper edge of said fixed backrest being below the level of an edge of the deck.
  6. Watercraft according to claim 5, wherein a base (211) of the seat and the fixed backrest (212) are formed integrally with the deck to form a bucket seat.
  7. Watercraft according to one of the preceding claims, wherein the deck (20) includes one or more bearing surfaces (24) situated to the rear of the pivot link axis A, arranged on said deck and shaped such that a lower edge (14) of the movable backrest (10) is found to be bearing on said one or more bearing surfaces when said movable backrest is in the raised position.
  8. Watercraft according to claim 7, wherein at least one bearing surface (24) is arranged substantially centred on a longitudinal axis of the deck (20).
  9. Watercraft according to claim 8, wherein the at least one bearing surface (24) arranged substantially centred on a longitudinal axis of the deck (20) is formed with dimensions along a longitudinal direction X and a transversal direction Y, and a surface area, so as to form a raised seat base when the movable backrest is in the lowered position.
  10. Watercraft according to one of claims 7 to 9, wherein at least one bearing surface (24) is arranged laterally at a distance from a longitudinal vertical plane of symmetry of the deck (20).
  11. Watercraft according to claim 10, wherein the movable backrest (10) includes at least one lateral wing (19), determining at least in part a lower edge (14) of said movable backrest, arranged to engage with the at least one bearing surface (24) arranged laterally at a distance from the longitudinal vertical plane of symmetry of the deck (20).
  12. Watercraft according to one of the preceding claims, wherein a shape of an upper edge (13) of the movable backrest (10) is complementary to a shape of a base (211) of the seat, on which base said movable backrest rests when said movable backrest is in the lowered position.
  13. Watercraft according to one of the preceding claims, wherein a diameter of the fastening lugs (17, 18) and a distance along the movable backrest (10) between said fastening lugs are coordinated with a diameter of the recesses (22, 23) on the deck (20) and a distance along said deck between said recesses, such that the movable backrest (10) pivots between the raised and lowered positions without excessive resistance or play.
  14. Watercraft according to one of the preceding claims, wherein the movable backrest of the at least one seat has a rear surface that is globally convex and including a concavity situated in a vertical axial plane of overall symmetry of the watercraft.
  15. Method for assembling a deck (20) and a movable backrest (10) to form a watercraft according to one of the preceding claims, wherein the deck (20) is formed in a thermofusible polymer material, during which said thermofusible material is heated to be melted or softened and then cooled, and wherein said deck is deformed to temporarily increase a distance between the recesses (22, 23), at a stage of the manufacture thereof wherein said material is not sufficiently cooled to hold a desired final shape of the watercraft, then the previously produced movable backrest (10) is positioned with the fastening lugs (17, 18) in the recesses (22, 23) of the deck, then the deck and the hull are reshaped in the desired final shape prior to complete cooling.
EP17155719.2A 2016-02-17 2017-02-10 Watercraft with movable backrest and method of assembly Active EP3208184B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1651288A FR3047724B1 (en) 2016-02-17 2016-02-17 MOBILE BACKBOARD AND METHOD OF ASSEMBLY

Publications (2)

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EP3208184A1 EP3208184A1 (en) 2017-08-23
EP3208184B1 true EP3208184B1 (en) 2018-12-05

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EP (1) EP3208184B1 (en)
ES (1) ES2708088T3 (en)
FR (1) FR3047724B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649977A (en) 1970-01-27 1972-03-21 Roy E Grabenauer Self-bailing formed skin/scuba diver{40 s float
US5042416A (en) 1990-06-18 1991-08-27 Pierre Arcouette One-boater watercraft
US5462408A (en) 1992-12-23 1995-10-31 Europcopter France Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture
US20070063378A1 (en) 2005-09-16 2007-03-22 O'donoghue Joseph Compound tooling system for molding applications
US20080035047A1 (en) 2006-08-08 2008-02-14 Mcdonough Robert J Hybrid kayak and canoe self-propelled watercraft
US20090064917A1 (en) 2007-09-06 2009-03-12 Pyranha Mouldings Ltd Kayak and Canoe seat
US20130074760A1 (en) 2011-09-22 2013-03-28 Lifetime Products, Inc. Kayak

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20300425U1 (en) * 2003-01-11 2003-08-07 Klepper Faltbootwerft Ag Seat with adjustable backrest for kayaks mounted on rail and has seat, which can be continuously adjusted in longitudinal direction
US20090038526A1 (en) * 2007-08-09 2009-02-12 Legacy Paddlesports, Llc Watercraft seat
US8869731B2 (en) * 2012-03-16 2014-10-28 Hobie Cat Company Adjustable kayak chair

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649977A (en) 1970-01-27 1972-03-21 Roy E Grabenauer Self-bailing formed skin/scuba diver{40 s float
US5042416A (en) 1990-06-18 1991-08-27 Pierre Arcouette One-boater watercraft
US5462408A (en) 1992-12-23 1995-10-31 Europcopter France Blade made of thermoplastic composite, in particular for ducted tail rotor of a helicopter, and its method of manufacture
US20070063378A1 (en) 2005-09-16 2007-03-22 O'donoghue Joseph Compound tooling system for molding applications
US20080035047A1 (en) 2006-08-08 2008-02-14 Mcdonough Robert J Hybrid kayak and canoe self-propelled watercraft
US20090064917A1 (en) 2007-09-06 2009-03-12 Pyranha Mouldings Ltd Kayak and Canoe seat
US20130074760A1 (en) 2011-09-22 2013-03-28 Lifetime Products, Inc. Kayak

Also Published As

Publication number Publication date
FR3047724A1 (en) 2017-08-18
EP3208184A1 (en) 2017-08-23
ES2708088T3 (en) 2019-04-08
FR3047724B1 (en) 2019-05-03

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