STORAGE DEVICE FOR A SHIP'S WING

Abstract

A device (10) for storing a ship's wing (3) in an elongated cradle (1) with longitudinal axis X-X', comprising an open upper portion (1a) adapted to receive the wing (3) in the lowered position, and a supporting lower portion (1b), as well as a protective structure for covering said upper portion (1a) of the cradle (1). According to the invention, said protective structure comprises at least a first cover (20) and at least a second cover (30) which are movable by tilting on either side of the longitudinal axis of the cradle so as to move from a first position in which said at least first cover (20) and at least second cover (30) are spread apart to allow free access to said upper portion (1a) of the cradle (1) and a second position in which said at least first cover (20) and at least second cover (30) are brought together and cover the upper portion (1a) of the cradle (1). Figure for the abstract: Fig. 2

Description

Title of the invention: STORAGE DEVICE FOR A SHIP'S WING

[0001] The present invention relates to the field of wind-powered propulsion vehicles, of the ship type, or to hybrid ship-type vehicles, partly powered by wind, and it relates more particularly to a device for storing a sail or streamlined wing for such a ship.

[0002] As is generally known, when not in use, the main sail of a sailboat is lowered onto the mast. A protective bag covers it, which is deployed and removed manually in most cases. However, this manual operation is often difficult to perform given the mobility of the mast and the awkward positioning of the operator relative to it.

[0003] To facilitate the operation of covering and removing the mainsail cover when lowered onto the bollard, a solution has been proposed in document FR 2969117. This document describes a sail protection device in the form of a flexible bag, fixed to the top of the bollard. The bag is equipped with opening and closing means, such as elastic strips or inflatable tubes actuated along an axis parallel to the longitudinal axis of the bollard. When actuated in the closed position, these means surround the sail placed inside the device; a reverse movement is performed to reach the open position. The elastic strips or, in a variant, the inflatable tubes, are deployed and retracted by means of a remote control device connected to traction or pneumatic actuators.While this solution does allow remote control of the opening and closing of the soft bag containing the sail, it only permits a small range of movement and thus proves difficult to handle when lowering the sail, especially in strong winds when it begins to flap strongly.

[0004] To overcome these drawbacks, document EP 2905218 proposes a sail storage device comprising two rigid, generally truncated cone-shaped shells, pivotally mounted on hinges located on the lateral faces of the post. The shells are moved manually using a set of ropes called "lazy jacks," or by means of cables via a pulley system. While this solution does allow for a wider opening of the device's shells and thus better accommodates the sail when it is lowered, it has its limitations when cables or ropes are required to open and close the shells, which can impede the sail's movement. Furthermore, given the significant bulk of the two hulls when open, this solution is unsuitable for storing very large sails, such as the wings used on very large vessels like cargo ships. In addition, this solution is not suitable for a vessel with a retractable mast, as the lazy jacks are attached to it.

[0005] Similar to sailboats, on a vessel equipped with a propulsion wing—a sail with a double skin that allows it to take on an aircraft wing profile when hoisted for wind propulsion—a support structure must be provided for the wing when it is lowered or folded back on itself. This support structure, called a cradle, is supported by the mast, generally has rigid walls, and is a pod with a hollow, substantially oblong shape. Since the cradle is open at its top, when the wing is stowed in the cradle, it can be damaged by exposure to the elements (wind, water, bird droppings, etc.) if it is not protected.

[0006] According to the guidelines of the independent Norwegian Foundation "Det Norske Veritas" or DNV, one of the leading international providers of risk management services, a protective element for a ship's sail or wing must be able to protect it against dust (for example in the case of loading / unloading of bulk carriers), against shocks (for example when an object falls), against weathering (such as water or ice) and against UV radiation (in order to limit aging), while limiting its aerodynamic impact and being able to withstand actual winds of more than 50m / s in the closed position.

[0007] Thus, in order to protect the wing contained in a small or medium-sized cradle, a simple solution is to cover the cradle manually. For this, a tarpaulin made of a thick polymer material, generally equipped with eyelets along its edges, is deployed and then secured to the boat using fasteners that engage with the eyelets on the tarpaulin. However, for large cradles, for example, those approximately 15-25 m long and 5-8 m wide, manual deployment is no longer feasible.

[0008] An objective of the invention is to remedy the aforementioned drawbacks and to provide an original solution for a storage device for a large ship's sail or wing, enabling it to be effectively protected when lowered into its cradle, a device which proves to be reliable in operation and easily maneuverable.

[0009] This objective is achieved by the invention, which provides a device for storing a ship's wing in an elongated cradle with longitudinal axis X-X', comprising an upper part adapted to receive the wing in the lowered position, and a lower support part, as well as a protective structure intended to cover said upper part of the cradle, characterized in that said protective structure comprises at least one first concave hood and at least a second concave hood, said at least first hood and at least second hood being movable by tilting in opposite directions on either side of the longitudinal axis of the cradle so as to pass from a first position in which said at least first hood and at least second hood are spread apart to allow free access to said upper part of the cradle and in which the inner face of each hood surrounds at least part of the outer face of the lower part of said cradle and a second position in which said at least first hood and at least second hood are brought together and cover the upper part of the cradle.

[0010] In other words, the invention proposes a ship wing storage device that accommodates the wing in a lowered position and protects it from external damage. The device comprises, more specifically, movable, concave-shaped covers that can be tilted on either side of the longitudinal axis of the cradle so as to be able to be stored in the lower part of the cradle in their open position and to meet above the open upper part, forming an open upper deck of the cradle to enclose the wing inside. Tilting means that all points of a cover change position by the same distance relative to the longitudinal axis of the cradle. Such tilting can be achieved using a drive mechanism such as a deformable parallelogram, or by rotating the movable covers.

[0011] Such a mechanism has the advantage of using rigid movable covers having a very small footprint in open position, while still allowing a good aerodynamic profile for the cradle in closed position.

[0012] In a preferred embodiment of the invention, said at least one first hood can be made to rotate about an axis Y-Y' in a first direction, said at least one second hood can be made to rotate about an axis Z-Z' in a direction opposite to the first, the axes Y-Y' and Z-Z' being parallel to the longitudinal axis X-X' of the cradle. The axes Y-Y', Z-Z' can be supported in bearings located on either side of a vertical median plane of the cradle at a distance defined by the cradle geometry and the desired height between the upper bridge and the inner faces of the hoods. In an alternative embodiment, the axes Y-Y', Z-Z' can also coincide and thus form a single axis of rotation, an axis which is substantially coincident with the axis X-X' of the cradle, capable of accommodating the support bearings for the different hoods.

[0013] Said at least a first hood and at least a second hood may have substantially identical shapes and dimensions.

[0014] Said cradle may comprise, distributed along its length, several arched uprights forming rotational guide rails for a first hood and for a second hood. This ensures the rotational guidance of the hoods, which are parts hollows with large dimensions and therefore a fairly significant mass, while avoiding their deformation.

[0015] The device of the invention may include motorized means for rotating said at least first hood and at least second hood.

[0016] Said motorized means may include at least one geared motor attached to the cradle capable of rotating a hood.

[0017] The output shaft of said geared motor can drive a pinion which can cooperate with a toothed ring sector located on the internal walls of the hood.

[0018] Each hood can comprise several sectors of toothed rings arranged along its internal generatrix. This makes it possible to ensure the rotational movement of the hoods, which are hollow parts with large dimensions and therefore a fairly significant mass, while preventing their deformation.

[0019] In one embodiment, the device of the invention may comprise two first concentric hoods arranged to rotate about the Y-Y' axis and two second concentric hoods arranged to rotate about the Z-Z' axis. This makes it possible to cover a cradle of greater width, for example from 6m, using several concentric and retractable hoods.

[0020] The hood located radially furthest inside can support the guide rails and the drive motor for rotating the hood located radially furthest outside.

[0021] The device of the invention may include a control unit capable of controlling the synchronous operation of all the geared motors that rotate the same hood. This makes it possible to drive all the toothed ring sectors of each hood simultaneously in order to prevent the hood from twisting.

[0022] The device of the invention may include a control unit capable of controlling the synchronized operation of said at least first hood and at least second hood between said first position and said second position. Thus, the synchronized operation of the hoods located on either side of the longitudinal axis of the cradle makes it possible to optimize the operation so that the closing, or opening respectively, can be carried out symmetrically and preferably progressively.

[0023] The device of the invention may include at least one locking device in the closed position of said at least first hood and at least second hood.

[0024] Said hoods may have a structure formed of rigid uprights covered with a stretched tarpaulin, a metal sheet or an envelope made of a composite material.

[0025] The objective of the invention is also achieved with a vessel comprising at least one mast forming a support for a wing storage device of the invention.

[0026] The invention will be better understood from the following description, which is based on the following figures: Fig. 1 is a schematic view of a ship comprising a wing storage device according to the invention; [Fig.2] is a perspective view of a wing storage device according to a first embodiment of the invention, the device being shown in the open position; [Fig.3] is a perspective view of the device in [Fig.2] shown in the closed position; [Fig.4] is a simplified perspective view and at an enlarged scale of the device in [Fig.2]; [Fig.5] is a front view of the device in [Fig.2]; [Fig.6] is a front view of the device in [Fig.3]; [Fig.7] is a perspective view illustrating some of the components located inside the device in [Fig.2]; [Fig.8] is a perspective view of a wing storage device according to a second embodiment of the invention, the device being shown in the open position; [Fig.9] is a simplified perspective view of the device in [Fig.8]; [Fig. 10] is a perspective view of the device in [Fig. 8], the device being shown in a partially closed position; [Fig. 11] is a perspective view of the device in [Fig. 8], the device being shown in the fully closed position; Figures 12, 13 and 14 are front views of the device illustrated in figures 8, 10 and 11.

[0027] In the various figures, identical or similar elements bear the same reference. Their description is therefore not systematically repeated.

[0028] Figure 1 schematically illustrates a boat or vessel 2 comprising a streamlined sail or wing 3 attached to a mast 4 held by the hull of the vessel. Means for hoisting the wing or sail of the vessel are also provided (not shown in the figures) from a receptacle or cradle 1 for receiving the wing 3, the cradle being supported by the mast 4, to the base or lower part of the latter, above the deck of the boat. The wing 3 is of the inflatable type, that is to say, it comprises two adjacent surfaces joined at their edges to form a closed cavity into which air is blown. The cavity includes several curves 5 regularly distributed along the height of the wing, the curves being separated by ribs permeable to the air blown by fans located inside the wing or in the cradle. The curves have different dimensions and form the wing profile when it is inflated, guided and hoisted as described in the applicant's document WO2022248811. Wing 3 of [Fig. 1] is illustrated in three positions: a first position 3a in which it is hoisted to its maximum, in an intermediate position 3b and in a completely lowered position 3c in the cradle 1.

[0029] In the example illustrated in the figures, the wing has significant dimensions, such as a height exceeding 40 m and a surface area exceeding 500 m². The wing material is a substantially airtight fabric, such as fabric impregnated for waterproofing purposes. This material is preferably treated to resist UV radiation, salt spray, bird droppings, and wind stress.

[0030] In the example illustrated in the figures, the mast 4 is telescopic, that is to say, it is made up of several tubular elements that slide relative to each other to extend or retract. Such a telescopic mast supports a head 6 at its upper end which, when the mast elements are extended, pulls the wing upwards while simultaneously inflating it, thus ensuring the wing is hoisted. When lowering, the wing is deflated and the head accompanies the retraction of the mast elements into the cradle 1.

[0031] The cradle 1, as more clearly seen in [Fig. 4], is a rigid, hollow assembly of generally prismatic shape, elongated along a longitudinal axis X-X', the profile of which points towards the leading edge of the wing 3. One of the functions of the cradle is to receive the wing 3 in the lowered position. The cradle 1 comprises an open upper part 1a, called the upper deck, suitable for receiving the wing 3 in the lowered position, and a lower part 1b whose role is to connect it to the mast 4 and to provide support for the other components of the cradle. The upper part 1a is formed by a flat surface creating a floor or upper deck for the cradle 1. A rim 1a, called the bulwark, is provided around the perimeter of the upper deck to better orient the wing within the upper part 1a when it arrives in the lowered position on the cradle 1 and to secure the upper deck when personnel are present.

[0032] According to the invention, more particularly with reference to Figures 2 and 3, a protective structure for the upper part la of the cradle 1 comprises two covers 20, 30, each having a concave shape, the two covers being made to pivot on either side with respect to the longitudinal axis X-X' of the cradle 1 between a first position, in which the covers 20, 30 are spread apart to allow free access to said upper part la of the cradle 1 and the inner face 20i, 30i of each cover surrounds at least partially the outer face of the lower part 1b of said cradle 1, and a second position in which said at least two covers 20, 30 are brought together and cover the upper part la of the cradle 1. Thus, when in the second position, the covers 20, 30 are brought together, they cover the upper part la of the cradle 1. by defining with the latter a closed volume for receiving the wing 3 in the lowered position. Preferably, the cowlings 20, 30 face each other vertically above the upper part of the cradle 1.

[0033] The first hood 20 is made to rotate about an axis Y-Y' in a first direction, and the second hood 30 is made to rotate about an axis Z-Z' in a direction opposite to the first, the axes Y-Y' and Z-Z' being parallel to the longitudinal axis X-X' of the cradle. In a preferred embodiment, the first hood 20 and the second hood 30 have symmetrical shapes with respect to a vertical plane passing through the longitudinal axis X-X', which forms a plane of symmetry for the cradle 1, and they have substantially identical dimensions. Each hood 20, 30 has a domed or rounded shape that is an angular sector resulting from a shape of revolution obtained by rotating a predetermined profile about its respective axis of rotation Y-Y', respectively Z-Z'. The axes Y-Y', Z-Z' are held in bearings located on either side of a vertical median plane of the cradle, bearings made in vertical end posts 11, 12 of the cradle 1 ([Fig.4]).In a variant (not illustrated), the Y-Y' and Z-Z' axes can also coincide, and in this case the device of the invention comprises a single axis of rotation common to both hoods and capable of accommodating the hood support bearings, an axis which is substantially coincident with the X-X' axis of the cradle.

[0034] The hoods 20, 30 are rigid shells made of a composite material of resin and glass fibers, carbon fibers, or natural fibers. In another example, each hood 20, 30 comprises a rigid structure covered with a stretched tarpaulin, the tarpaulin being attached by stitching, gluing, or a removable assembly such as VELCRO® to the metal structure. This structure may also be covered with a metal sheet or an envelope made of a composite material based on resin and glass fibers, carbon fibers, or natural fibers.

[0035] The actuation of the hoods 20, 30 during movement, their guidance relative to the cradle 1, and their operation will be explained below with reference to Figures 4 to 7. Figure 4 is a simplified perspective view of the storage device 10 of the invention in which the hoods 20, 30 have been removed to make the hood guidance and actuation devices visible. The cradle 1 is clearly visible in Figure 4, particularly its lower part 1b, which has side walls enclosing a closed volume at its upper end, formed by a floor or platform that constitutes the upper part or upper deck of the cradle. The rim projects vertically from the horizontal floor of the upper deck around its entire perimeter.The external walls of the lower part 1b of the cradle 1 support, on either side of the plane of symmetry passing through the longitudinal axis of the cradle, several curved uprights, distributed along the length of the cradle. and forming rotating guide rails for the hoods 20 and 30. Thus, guide rails 23a, 23b, and 23c provide rotational guidance for the first hood 20, and guide rails 33a, 33b, and 33c provide rotational guidance for the second hood 30. The guide rails 23a, 23b, and 23c are rigid, arc-shaped uprights centered on the Y-Y' axis, fixedly mounted to the floor of the upper section (Fig. 7) using rigid bars. Similarly, the guide rails 33a, 33b, and 33c are rigid, arc-shaped uprights centered on the Z-Z' axis, fixedly mounted to the floor of the upper section.To facilitate movement on the guide rails, each hood comprises several pairs of rollers moving in grooves on either side of each rail. The rollers are mounted to rotate freely in bearings held by rigid, arched uprights concentric with the respective guide rails. Thus, uprights 25a, 25b, and 25c form a support for several pairs of rollers 26 that rotate as they move along the rails 23a, 23b, and 23c of the hood 20. Similarly, uprights 35a, 35b, and 35c form a support for several pairs of rollers 36 that rotate as they move along the rails 33a, 33b, and 33c of the hood 30.

[0036] The storage device 10 of the invention further comprises motorized means for rotating the covers 20 and 30. In the example illustrated in Figures 2 to 7, these motorized drive means comprise, for each cover, a geared motor 27, 37, fixedly mounted on the cradle 1, for example by means of rigid brackets 27', 37' bearing against the floor of the upper part 1a. The output shaft of each geared motor 27, 37 comprises an elongated rotating shaft 28, 38 having a pinion 29, respectively 39, mounted at each of its ends. Each pinion 29 cooperates with a toothed ring sector 41 located on the inner walls of the cover 20. Similarly, each pinion 39 cooperates with a toothed ring sector 51 located on the inner walls of the cover 30.

[0037] During operation, when the geared motors 27 and 37 receive a start command, preferably synchronously, they rotate the hoods 20 and 30 around their axes of rotation Y-Y', respectively Z-Z', and in opposite directions so as to bring them closer together. In the example illustrated in Figures 2 to 7, the hoods 20 and 30 rotate approximately 74° between the fully open and fully closed positions and come to cover the upper part of a cradle 1 having a width less than or equal to 5.5 m. When the two hoods reach the closed position, directly above the upper part of the cradle, they are held in this position by means of several locking devices 50 distributed along the length of the cradle, locking devices which may be, for example, electromagnetic locks. In one embodiment, a single locking device is located halfway along the length of the cradle 1..

[0038] Figures 8 to 14 illustrate another embodiment of the invention in which the storage device 10 comprises a protective structure capable of covering the upper part of the cradle 1 having a width greater than that of the previously described embodiment, this structure comprising two pivoting covers per side of the cradle, therefore four pivoting covers in all.

[0039] In the illustrated example, the storage device 10 comprises four covers, symmetrical in pairs on either side of a plane of symmetry which is a median vertical plane passing through the longitudinal axis X-X' of the cradle. Thus, as can be seen more clearly in figures 8 and 11, each side of the cradle comprises an inner cover 22, respectively 32 and an outer cover 21, respectively 31. The covers 21, 22 are mounted pivotally about a longitudinal axis Y-Y' and the covers 31, 32 are mounted pivotally about a longitudinal axis Z-Z', parallel to Y-Y' and to the longitudinal axis X-X' of the cradle 1. The four covers 21, 22, 31, 32 are preferably driven synchronously, the drive in motion is achieved by means of toothed sectors distributed along the inner parts of said four covers, the toothed sectors being driven by geared motors each having a pinion on its output shaft.Thus, the presence of several drives distributed along the length of the cradle structure significantly reduces the deformations (due to twisting) experienced by the covers 21, 22, 31, 32, which are large, thin-skinned hollow parts. The storage device of the invention therefore makes it possible to cover large oblong surfaces.

[0040] During operation, a first phase consists of rotating the inner hood 22 around the longitudinal axis Y-Y' by about 45°, which in turn drives the outer hood 21 with it, and rotating the inner hood 32 around the axis Z-Z' by about 45°, which in turn drives the outer hood 31 with it ([Fig. 12]). To this end, several drive motors, in particular geared motors 27, 37, are fixed to the cradle 1 and act via toothed rings 41, 51 located on the inner cover 22, 32. The output shaft of each geared motor 27 includes a pinion that cooperates with a toothed ring sector 41 located on the inner walls of the inner cover 22. Similarly, the output shaft of each geared motor 37 includes a pinion that cooperates with a toothed ring sector 51 located on the inner walls of the inner cover 32.

[0041] When the inner cover 22, respectively 32, has reached its final position, it comes to a stop and a second deployment phase takes place, during which each outer cover 21, respectively 31, will also rotate an additional 45°, using the inner cover 22, respectively 32, as a support. For this purpose, moving drive means, in particular geared motors 27i, are fixed to the inner cover 22 and geared motors 37i are fixed to the inner cover 32 and act via pinions mounted on their output shafts on toothed rings 43 and 53 respectively ([Fig. 14]) attached to the outer covers 21 and 31 respectively. The entire device is thus equipped with a first motor attached to the cradle 1 and a second motor attached to the inner covers 22 and 32. These motors preferably operate sequentially, in that order to activate the closing of the covers and in the reverse order to open them. The control of the various geared motors is carried out using a control unit designed to control the synchronous operation of all the geared motors that rotate the same cover. This allows all the toothed ring sectors of each cover to be driven simultaneously to prevent the cover from twisting.

[0042] Similar to the variant described with reference to Figures 2 to 7, the device of Figures 8 to 14 comprises guide means including several curved rails fixed to the cradle 1, distributed along its length, in particular rails 23a, 23b, 23c, 23d on one side of the median plane of the cradle 1 and rails 33a, 33b, 33c, 33d on the other side of the median plane of the cradle 1, rails on which pairs of rollers held by uprights of the inner covers 22 and 32 move. In this variant, the inner cover 22 comprises curved guide rails 23a', 23b', 23c', 23d' and the inner cover 32 comprises curved guide rails 33a', 33b', 33c', 33d' used to guide pairs of rollers held by uprights fixed to the internal walls of the outer hoods 21, 31 (not shown).

[0043] Thus, in this variant of the storage device 10 of the invention comprising four hoods, it is possible to cover a cradle having a width of approximately 6.2 m and a length of 21 m.

[0044] Preferably, the storage device 10 of the invention comprises a control unit capable of controlling the synchronized operation of said at least first cover and at least second cover between said first position and said second position. Thus, the synchronized operation of the covers located on either side of the longitudinal axis of the cradle optimizes the operation so that the closing and opening, respectively, can be carried out symmetrically and progressively.

[0045] In one variant (not illustrated), two hoods located on either side of the longitudinal axis of the cradle can be connected by a cardan-type mechanical link or by a set of gears that can ensure their synchronous operation when the drive is only on one side.

[0046] The wind-powered propulsion system of the invention, comprising a self-supporting telescopic mast 4 and an inflatable sail or wing 3 with a thick profile around this mast, operates as follows. The entire propulsion system retracts into The storage device 10 according to the invention. Its operation is preferably fully automatic. Thus, at the operator's command, the storage device 10 orients itself relative to the wind, and the wing 3 is inflated simultaneously with the mast 4 being deployed. Then, as soon as the wing 3 is inflated and the mast 4 is deployed, the storage device 10 is oriented relative to the wind to optimize thrust.

[0047] Other variations and embodiments of the invention can be envisaged within the scope of the invention as claimed. Thus, instead of an inflatable wing, a wing with telescopic segments and tensioned fabric can be used, which is stored inside a storage device of the invention in the collapsed position.

[0048] In another variant of the ship wing storage device of the invention, three or more concentric hoods may be found on each side of the longitudinal axis of the cradle.

Claims

Demands

1. A device for storing a ship's wing (3) in an elongated cradle (1) with longitudinal axis X-X', comprising an open upper part (la) adapted to receive the wing (3) in a lowered position, and a lower support part (1b), as well as a protective structure intended to cover said upper part (la) of the cradle (1), characterized in that said protective structure comprises at least one first concave hood (20; 21, 22) and at least one second concave hood (30; 31, 32), said at least first hood (20; 21, 22) and at least second hood (30; 31, 32) being movable by tilting in opposite directions on either side of the longitudinal axis of the cradle so as to move from a first position in which said at least first hood (20; 21, 22) and at least second hood (30; 31,32) are moved aside to allow free access to said upper part (la) of the cradle (1) and in which the inner face of each hood (20;21,22; 30; 31,32) surrounds at least in part the external face of the lower part (1b) of said cradle (1) and a second position in which said at least first cover (20; 21,22) and at least second cover (30; 31,32) are brought together and cover the upper part (la) of the cradle (1).;

2. Device according to claim 1, characterized in that said at least one first hood (20; 21,22) is made to rotate about an axis Y-Y' in a first direction, in that said at least second hood (30; 31,32) is made to rotate about an axis Z-Z' in a direction contrary to the first, the axes Y-Y' and Z-Z' being parallel to the longitudinal axis X-X' of the cradle.

3. Device according to any one of the preceding claims, characterized in that said at least one first hood (20; 21,22) and at least one second hood (30; 31,32) have substantially identical dimensions.

4. Device according to any one of the preceding claims, characterized in that said cradle (1) comprises, distributed along its length, several curved uprights forming rotating guide rails for a first hood (20) and for a second hood (30).

5. A device according to any one of the preceding claims, characterized in that it comprises motorized means for rotational drive of the said at least first hood (20; 21,22) and at least second hood (30; 31,32).

6. Device according to the preceding claim, characterized in that said motorized means comprise at least one geared motor (27, 37) integral with the cradle (1) capable of rotating a hood (20, 30).

7. Device according to the preceding claim, characterized in that the output shaft of said geared motor drives a pinion (29, 39) which cooperates with a toothed ring sector (41, 51) located on the internal walls of the hood (20, 30).

8. Device according to the preceding claim, characterized in that each hood (20, 30) comprises several sectors of toothed rings (41, 51) arranged along its internal generatrix.

9. Device according to any one of claims 2 to 8, characterized in that it comprises two first concentric hoods (21, 22) arranged rotatably about the Y-Y' axis and two second concentric hoods (31, 32) arranged rotatably about the Z-Z' axis.

10. Device according to the preceding claim dependent on at least claim 4, characterized in that the hood located radially furthest inside (22, 32) supports the guide rails and a drive motor for rotating the hood located radially furthest outside (21, 31).

11. Device according to claim 8 or according to any one of claims 9 or 10, claim 9 being dependent at least on claim 6, characterized in that it comprises a control unit capable of controlling the synchronous operation of all geared motors which drive in rotation the same hood.

12. Device according to any one of the preceding claims, characterized in that it comprises a control unit capable of controlling the synchronized operation of said at least first hood (20; 21,22) and at least second hood (30; 31,32) between said first position and said second position.

13. Device according to any one of the preceding claims, characterized in that it comprises at least one locking device (50) in the closed position of said at least first hood and at least second hood.

14. Device according to any one of the preceding claims, characterized in that said hoods (20; 21, 22; 30; 31, 32) have a structure

15. formed of rigid uprights covered with a stretched tarpaulin, or a metal sheet or an envelope made of a composite material. Vessel comprising at least one mast (4) forming a support for a wing storage device (10) according to any one of the preceding claims.

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