WO2003004349A1 - Device for damping the movements of an anchored boat - Google Patents

Device for damping the movements of an anchored boat Download PDF

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Publication number
WO2003004349A1
WO2003004349A1 PCT/FR2002/002384 FR0202384W WO03004349A1 WO 2003004349 A1 WO2003004349 A1 WO 2003004349A1 FR 0202384 W FR0202384 W FR 0202384W WO 03004349 A1 WO03004349 A1 WO 03004349A1
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WO
WIPO (PCT)
Prior art keywords
boat
hollow body
base
cable
hull
Prior art date
Application number
PCT/FR2002/002384
Other languages
French (fr)
Inventor
Gaston Huguenin
Original Assignee
Gaston Huguenin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaston Huguenin filed Critical Gaston Huguenin
Publication of WO2003004349A1 publication Critical patent/WO2003004349A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/48—Sea-anchors; Drogues

Definitions

  • the present invention relates to a device for damping the vertical and / or roll movements caused by the waves of an anchored boat.
  • the holding of the anchor line of an anchored boat, the anchor line comprising an anchor connected to the bow of a boat by a chain depends on the dimensioning of the anchor and the length of the chain, the larger the tonnage of the boat, the larger and heavier the anchor of course.
  • the traction of the chain on the rod of the anchor is done generally parallel to the seabed on which the head of the anchor is supported so that the latter comes to hang on to it.
  • the undulatory movements of the sea surface such as swell or chop for example, commonly called waves
  • the boat to roll that is to say a reciprocating transverse movement of the boat, and / or a vertical displacement of the bow of the boat which reaches its peak on the crest of the wave and its lowest position when the bow of the boat is in the hollow of the wave.
  • This vertical movement causes traction on the chain of the mooring line which is exerted on the rod of the anchor in an oblique direction relative to the seabed.
  • This regular traction on the anchor causes the anchor to slip on the seabed, which results in a drift of the boat on the surface of the water.
  • devices In order to limit the roll and / or the vertical movement of the boat caused by waves, devices have already been devised consisting of a generally frustoconical hollow body connected to an element of the boat and submerged which provides hydrodynamic force on the hull of the boat. proportional to the vertical displacement of the boat which opposes said displacement when the hull of the latter is driven vertically by the crest of a wave and a zero force when the hull of the boat is located in the hollow of a wave.
  • the stabilizers respectively consist of a generally frustoconical hollow body moored on either side of the hull of the boat so that the hollow bodies are completely submerged.
  • the hollow bodies of the valves made up of membranes which open and close when the frustoconical hollow bodies descend and rise respectively.
  • the membranes open under the effect of the resistance of the water in order to facilitate the descent to said frustoconical hollow body and, when the frustoconical hollow body rises, the membranes close to provide a hydrodynamic force that opposes the ascent.
  • the frustoconical hollow body behaves like a rigid disc which acts as a brake, this resistance force called hydrodynamic force being proportional to the area of the large base of the frustoconical hollow body.
  • One of the aims of the invention is therefore to remedy these drawbacks by proposing a device of simple and inexpensive design for damping the vertical and / or roll movements of an anchored boat so as to avoid the drift of the boat.
  • a device for damping rolling movements and / or vertical to an anchored ship said ship's movements being caused by the wave motions of the sea surface, such like swell or choppy waves, commonly called waves, so as to avoid drift of the boat, remarkable in that it consists of means extending partially under the surface of the water, connected to an element of the boat and providing a weight force on the boat hull which oppose said displacement when the the hull of the latter is driven vertically by the crest of a wave and zero force when the hull of the boat is in the hollow of a wave.
  • the means consist of a frustoconical or trunk-polyhedral body comprising a large open base connected to the windlass or to the bow of the boat by a cable and a small open base provided with a ballast so that, when the hollow body is partially submerged, suspended by the cable, said hollow body extends vertically, the large base slightly above the water level, said large base extending over the small base.
  • the small open base of the hollow body allows a low flow of water when the bow of the boat moves vertically to avoid any tearing of the hollow body.
  • the device advantageously comprises a • second ascent cable extending through the interior of the hollow body and the ends of which are respectively secured to the small base and the windlass or the bow of the boat when the device is submerged so that the removal of the device is carried out by exerting traction on the ascent cable until the small base of the hollow body is above the large base, the entire device then being reassembled by simultaneously pulling on the first cable connected to the large base and on the cable.
  • FIG. 1 is a torn perspective view of the device for damping the vertical movements of an anchored boat according to the invention
  • FIG. 2 is a view in radial section of the device according to the invention shown in FIG. 1,
  • FIG. 3 is a view in partial radial section of the device according to the invention provided with a non-return valve
  • - Figure 4 is a partial radial sectional view of an alternative embodiment of the device according to the invention
  • - Figures 5a and 5b are views in radial section of the device according to the invention when removing said device some water
  • FIG. 7 is a side view of a sailing boat fitted with the device according to the invention positioned along a side of said boat in order to damp the roll movements of the latter,
  • FIG. 8 is a front view of the sailing boat provided with the device according to the invention shown in FIG. 7.
  • the device 1 for damping the vertical movements of an anchored boat consists of a frustoconical hollow body 2, preferably obtained in a flexible waterproof material such as fabric for example, comprising a large base open 3 of generally circular section connected to the windlass or to the bow of a boat, as will be detailed below, by a first cable 4 secured to four lines 5a, 5b, 5c, 5d respectively secured at four points from the edge of the large base 3 two with two diametrically opposite, the first cable 4 being secured to the four lines 5a, 5b, 5c, 5d by a ring 6 for example.
  • a frustoconical hollow body 2 preferably obtained in a flexible waterproof material such as fabric for example, comprising a large base open 3 of generally circular section connected to the windlass or to the bow of a boat, as will be detailed below, by a first cable 4 secured to four lines 5a, 5b, 5c, 5d respectively secured at four points from the edge of the large base 3 two with two diametrically opposite, the first cable
  • the frustoconical hollow body 2 also comprises a small open base 7 provided with a ballast 8 secured to said small base 7 by two small cables 9a, 9b of the same length, the free ends of which are respectively fixed to the edges of the small base. 7 at two diametrically opposite points and to the ballast 8, so that, when the hollow body 2 is immersed, suspended by the cable 4, said hollow body 2 extends vertically, the large base 3 above the small base 7 as will be seen later.
  • the large base 3 and the small base 7 of the hollow body 2 comprise an annular band 10 and respectively 11, obtained in a flexible or semi-flexible material, such as thick waterproof fabric for example, and respectively secured on the external face of said hollow body 2.
  • the hollow body 2 comprises between the large base 3 and the small base 7 intermediate annular bands 12, 13 and 14 obtained in a flexible or semi-flexible material, secured to the external face of the hollow body 2 and regularly spaced in order to improve the resistance of said hollow body 2.
  • the annular bands 10 to 14 are secured to the external face of the hollow body 2 by all suitable means such as, for example, by gluing or by seams.
  • annular bands 10 to 14 can be secured on the internal face of the hollow body 2 without departing from the scope of the invention.
  • the edge of the large base 3 of the body 2 is secured to an annular frame consisting of two semicircular tubes articulated around hinges which allow the device to be folded so as to reduce its size for storage after use.
  • the latter comprises, with reference to FIGS. 1 and 2, a second ascent cable 15 of the device 1 extending from the inside of the hollow body 2 and the ends of which are respectively integral with the small base 7 and the windlass or bow of the boat as will be detailed later.
  • the second ascent cable 15 is, for example, secured to the small base 7 by a ring 16 secured to the free end of the second ascent cable 15 and sliding along a rod extending diametrically from an edge to the other from small base 7.
  • the small base 7 comprises a non-return valve 18 consisting, for example, of a ring 19 integral with the periphery of the small base 7 and two pivoting flaps about an axis 21 towards the inside of the hollow body 2, as indicated by the arrows a in FIG. 3, the axis 21 extending diametrically from one edge to the other of the small base 7 and said flaps 21 bearing on the ring 19 to close the small base 7.
  • a non-return valve 18 consisting, for example, of a ring 19 integral with the periphery of the small base 7 and two pivoting flaps about an axis 21 towards the inside of the hollow body 2, as indicated by the arrows a in FIG. 3, the axis 21 extending diametrically from one edge to the other of the small base 7 and said flaps 21 bearing on the ring 19 to close the small base 7.
  • non-return valve 19 may have only one flap without departing from the scope of the invention.
  • the end of the second ascent cable 15 is then secured to the flap or flaps of the non-return valve 18.
  • the ballast 8 consists of a ring-shaped weight 22 positioned at the periphery of the small base 7.
  • the d-shaped weight ring 22 extends, for example, outside the hollow body 2 and is held by a strip of fabric 23 sewn onto said hollow body 2. It is obvious that the ring-shaped weight 22 can s extend inside the hollow body 2 and that it can be maintained by any suitable means such as for example a strip of fabric glued to said hollow body 2.
  • the base 3 of the hollow body 2 is fixed to the free end of a halyard 25, such as the main halyard for example, of a mast 26 of the sailboat 24 via the cable 4 so that the hollow body 2 extends vertically next to the hull, at the height of the mast 26 and kept at a distance from the hull by a spacer 27.
  • a halyard 25 such as the main halyard for example
  • Said spacer 24 consists of two arms 27a and 27b articulated around a hinge 28 and whose free ends bear on the hull, under a body guard 29, at the height of the mast 26 so that the arms 27a and 27b extend generally perpendicular to the hull, the cable 4 bearing on the hinge 28.
  • the device comprises a tip 30, that is to say a cord whose free ends are respectively secured to the cord of the railing 29 and to the spacer 27 at the hinge 28 for example. It will also be observed that, in this particular embodiment, the ascent cable 15 of the hollow body 2 extends outside of said body 2 without however departing from the scope of the invention.
  • the device 1 is immersed in water and moored by its first cable 4 to the bow of a boat B, the mooring being carried out either at the windlass 31 or at a mooring cleat 32 positioned on the deck of boat B near its bow.
  • Windlass 31 means a device used to turn the chains, to anchor and to lift the anchors on board a ship, which usually consists of a roller with a generally horizontal axis around which the chain of the line is wound. wetting of the boat, said roller being advantageously motorized.
  • the force exerted on the bow of the boat B by the device 1 is zero or almost zero, the force exerted by the device 1 consisting in the weight of ballast 8 which is negligible compared to the weight of boat B.
  • the vertical displacement of boat B causes the reassembly of the device 1 fills with water.
  • the device 1 provides, during the ascent of the bow of the boat B, a weight force F p directly proportional to the volume of water contained in the hollow body 2 which opposes the vertical movement of said boat B, schematically represented by arrow F v so that said vertical displacement of the bow of the boat is limited.
  • a boat B sandstone waves V that is to say a boat B not equipped with the device 1 as described above, driven vertically by the crest of 'a wave V.
  • a boat B sandstone waves V that is to say a boat B not equipped with the device 1 as described above, driven vertically by the crest of 'a wave V.
  • the dimensions of the device 1 described above depend in particular on the size and weight of the boat B. Furthermore, it will be noted that the vertical movement of the boat B is limited, the traction on the chain of the mooring line of the latter is also reduced, thus avoiding a sliding of the anchor on the seabed which would result in a drift of boat B on the surface of the water. Finally, the vertical movement of boat B being significantly reduced, the passengers of the latter no longer perceive, or at least perceive less, the movements of the waves which are the cause of seasickness.
  • the withdrawal of the device is carried out by pulling on the second ascent cable 15 until the small base 7 of the hollow body 2 is above the large base 7, the entire device then being reassembled by simultaneously pulling on the first cable 4 connected to the large base and on the ascent cable 15.
  • the first cable 4 and / or the second ascent cable 15 comprise a buoy or a float 33 to prevent the device 1 from sinking during a bad maneuver.
  • Said buoy 33 is preferably secured to the first cable 4 or to the second ascent cable 15 so that it extends continuously between the bow of boat B and the surface of the water.
  • the device for damping the vertical movements of an anchored boat can consist of a hollow trunk-polyhedral body, that is to say a truncated polyhedron, and that the examples which have just been given are only particular illustrations in no way limiting the fields of application of the invention.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

The invention concerns a device (1) for damping the roll and/or vertical movements of an anchored boat (B), said movements of the boat (B) being caused by the undulating movements of the surface of the sea, such as swell or choppiness, commonly called waves (V) so as to avoid the boat from drifting. The invention is characterised in that it consists in means extending partly beneath the surface of the water, connected to an element of the boat and producing on the hull of the boat a weighted force countering said displacement when the boat hull is driven vertically by the crest of a wave (V) and a null force when the hull of the boat (B) is in a wave trough.

Description

DISPOSITIF D'AMORTISSEMENT DES MOUVEMENTS D'UN BATEAU ANCRE DEVICE FOR DAMPING THE MOVEMENTS OF AN ANCHORED BOAT
La présente invention concerne un dispositif pour amortir les mouvements verticaux et/ou de roulis provoqués par les vagues d'un bateau ancré.The present invention relates to a device for damping the vertical and / or roll movements caused by the waves of an anchored boat.
Dans le domaine du nautisme, il est bien connu que la tenue de la ligne de mouillage d'un bateau ancré, la ligne de mouillage comprenant une ancre reliée à la proue d'un bateau par une chaîne, dépend du dimensionnement de l'ancre et de la longueur de la chaîne, plus le tonnage du bateau est grand, plus l'ancre est grande et lourde bien évidemment. En effet, pour que l'efficacité de l'ancre soit optimale, il est nécessaire que la traction de la chaîne sur la tige de l'ancre se fasse globalement parallèlement au fond marin sur lequel prend appui la tête de l'ancre afin que cette dernière vienne s'y accrocher. Toutefois, les mouvements ondulatoires de la surface de la mer, telle que la houle ou le clapot par exemple, communément appelés vagues, provoquent un roulis du bateau, c'est-à-dire un mouvement alternatif transversal du bateau, et/ou un déplacement vertical de la proue du bateau qui atteint son apogée sur la crête de la vague et sa position la plus basse lorsque la proue du bateau se situe dans le creux de la vague. Ce déplacement vertical provoque une traction sur la chaîne de la ligne de mouillage qui s'exerce sur la tige de l'ancre suivant une direction oblique par rapport au fond marin. Cette traction régulière sur l'ancre provoque un glissement de l'ancre sur le fond marin qui se traduit par une dérive du bateau à la surface de l'eau.In the nautical field, it is well known that the holding of the anchor line of an anchored boat, the anchor line comprising an anchor connected to the bow of a boat by a chain, depends on the dimensioning of the anchor and the length of the chain, the larger the tonnage of the boat, the larger and heavier the anchor of course. Indeed, for the efficiency of the anchor to be optimal, it is necessary that the traction of the chain on the rod of the anchor is done generally parallel to the seabed on which the head of the anchor is supported so that the latter comes to hang on to it. However, the undulatory movements of the sea surface, such as swell or chop for example, commonly called waves, cause the boat to roll, that is to say a reciprocating transverse movement of the boat, and / or a vertical displacement of the bow of the boat which reaches its peak on the crest of the wave and its lowest position when the bow of the boat is in the hollow of the wave. This vertical movement causes traction on the chain of the mooring line which is exerted on the rod of the anchor in an oblique direction relative to the seabed. This regular traction on the anchor causes the anchor to slip on the seabed, which results in a drift of the boat on the surface of the water.
Afin de limiter le roulis et/ou le déplacement vertical du bateau provoqués par des vagues, on a déjà imaginé des dispositifs constitués d'un corps creux globalement tronconique connecté à un élément du bateau et immergé qui procure sur la coque du bateau une force hydrodynamique proportionnelle au déplacement vertical du bateau qui s'oppose audit déplacement lorsque la coque de ce dernier est entraînée verticalement par la crête d'une vague et une force nulle lorsque la coque du bateau se situe dans le creux d'une vague. C'est le cas par exemple du brevet australien AU 2169577 décrivant des stabilisateurs pour un petit bateau à l'ancrage. Les stabilisateurs sont respectivement constitués d'un corps creux globalement tronconique amarrés de part et d' autre de la coque du bateau de telle sorte que les corps creux soient totalement immergés. Par ailleurs, les corps creux des vannes constituées de membranes qui s'ouvrent et se ferment lorsque les corps creux tronconiques descendent et respectivement montent. Ainsi, lorsqu'un corps creux tronconique s'enfonce dans l'eau, les membranes s'ouvrent sous l'effet de la résistance de l'eau afin de faciliter la descente audit corps creux tronconique et, lorsque le corps creux tronconique remonte, les membranes se ferment pour procurer une force hydrodynamique qui s'oppose à la remontée. En effet, lors de la remontée, le corps creux tronconique se comporte comme un disque rigide qui fait frein, cette force de résistance dite force hydrodynamique étant proportionnelle à la superficie de la grande base du corps creux tronconique.In order to limit the roll and / or the vertical movement of the boat caused by waves, devices have already been devised consisting of a generally frustoconical hollow body connected to an element of the boat and submerged which provides hydrodynamic force on the hull of the boat. proportional to the vertical displacement of the boat which opposes said displacement when the hull of the latter is driven vertically by the crest of a wave and a zero force when the hull of the boat is located in the hollow of a wave. This is the case for example of the Australian patent AU 2169577 describing stabilizers for a small boat at anchor. The stabilizers respectively consist of a generally frustoconical hollow body moored on either side of the hull of the boat so that the hollow bodies are completely submerged. Furthermore, the hollow bodies of the valves made up of membranes which open and close when the frustoconical hollow bodies descend and rise respectively. Thus, when a frustoconical hollow body sinks into water, the membranes open under the effect of the resistance of the water in order to facilitate the descent to said frustoconical hollow body and, when the frustoconical hollow body rises, the membranes close to provide a hydrodynamic force that opposes the ascent. Indeed, during the ascent, the frustoconical hollow body behaves like a rigid disc which acts as a brake, this resistance force called hydrodynamic force being proportional to the area of the large base of the frustoconical hollow body.
Ces dispositifs présentent l'inconvénient de nécessiter de grandes dimensions, notamment de la grande base du corps creux tronconique, pour procurer une force suffisante s' opposant au déplacement vertical d'un bateau de grande taille tel qu'un yacht par exemple, ce qui rend la mise en place de ces dispositifs impossible et leur rangement difficile pour ce type de bateau.These devices have the drawback of requiring large dimensions, in particular of the large base of the frustoconical hollow body, to provide sufficient force opposing the vertical movement of a large boat such as a yacht for example, which makes the installation of these devices impossible and their storage difficult for this type of boat.
L'un des buts de l'invention est donc de remédier à ces inconvénients en proposant un dispositif de conception simple et peu onéreuse pour amortir les mouvements verticaux et/ou de roulis d'un bateau ancré de manière à éviter la dérive du bateau.One of the aims of the invention is therefore to remedy these drawbacks by proposing a device of simple and inexpensive design for damping the vertical and / or roll movements of an anchored boat so as to avoid the drift of the boat.
A cet égard et conformément à l'invention, il est •proposé un dispositif pour amortir les mouvements de roulis et/ou verticaux d'un bateau ancré, lesdits mouvements du bateau étant causés par les mouvements ondulatoires de la surface de la mer, tels que la houle ou le clapot par exemple, communément appelés vagues, de manière à éviter la dérive du bateau, remarquable en ce qu'il est constitué de moyens s ' étendant partiellement sous la surface de l'eau, connecté à un élément du bateau et procurant sur la coque du bateau une force pondérale qui s'opposent audit déplacement lorsque la coque de ce dernier est entraînée verticalement par la crête d'une vague et une force nulle lorsque la coque du bateau se situe dans le creux d'une vague.In this connection and in accordance with the invention, it is proposed • a device for damping rolling movements and / or vertical to an anchored ship, said ship's movements being caused by the wave motions of the sea surface, such like swell or choppy waves, commonly called waves, so as to avoid drift of the boat, remarkable in that it consists of means extending partially under the surface of the water, connected to an element of the boat and providing a weight force on the boat hull which oppose said displacement when the the hull of the latter is driven vertically by the crest of a wave and zero force when the hull of the boat is in the hollow of a wave.
Selon une variante d'exécution particulièrement avantageuse du dispositif conforme à l'invention, les moyens sont constitués d'un corps creux tronconique ou tronc-polyédrique comprenant une grande base ouverte reliée au guindeau ou à la proue du bateau par un câble et une petite base ouverte munie d'un lest de telle sorte que, lorsque le corps creux est partiellement immergé, suspendu par le câble, ledit corps creux s'étende verticalement, la grande base légèrement au-dessus du niveau de l'eau, ladite grande base s' étendant au-dessus de la petite base.According to a particularly advantageous variant of the device according to the invention, the means consist of a frustoconical or trunk-polyhedral body comprising a large open base connected to the windlass or to the bow of the boat by a cable and a small open base provided with a ballast so that, when the hollow body is partially submerged, suspended by the cable, said hollow body extends vertically, the large base slightly above the water level, said large base extending over the small base.
On comprend bien que lorsque la proue du bateau se déplace verticalement vers le haut, soulevée par une vague, le corps creux qui est rempli d'eau sort de l'eau et exerce une force pondérale sur la proue du bateau et que, lorsque la proue se situe dans un creux entre deux vagues successives, le corps creux s'enfonce, la grande base au- dessus de la petite base, grâce au lest de la petite base, le corps creux exerçant alors sur la proue du bateau une force nulle ou quasiment nulle.It is easy to understand that when the bow of the boat moves vertically upwards, raised by a wave, the hollow body which is filled with water comes out of the water and exerts a weight force on the bow of the boat and that, when the bow lies in a hollow between two successive waves, the hollow body sinks, the large base above the small base, thanks to the ballast of the small base, the hollow body then exerting on the bow of the boat zero force or almost zero.
On notera, par ailleurs, que la petite base ouverte du corps creux permet un faible écoulement de l'eau lorsque la proue du bateau se déplace verticalement afin d'éviter tout déchirement du corps creux.Note, moreover, that the small open base of the hollow body allows a low flow of water when the bow of the boat moves vertically to avoid any tearing of the hollow body.
Afin de faciliter le retrait du dispositif d'amortissement des mouvements verticaux du bateau, le dispositif comprend avantageusement un • second câble de remontée s ' étendant par 1 ' intérieur du corps creux et dont les extrémités sont respectivement solidaires de la petite base et du guindeau ou de la proue du bateau lorsque le dispositif est immergé de telle sorte que le retrait du dispositif s'effectue en exerçant une traction sur le câble de remontée jusqu'à ce que la petite base du corps creux soit au-dessus de la grande base, l'ensemble du dispositif étant alors remonté en tirant simultanément sur le premier câble relié à la grande base et sur le câble de remontée.In order to facilitate the removal of the device for damping the vertical movements of the boat, the device advantageously comprises a • second ascent cable extending through the interior of the hollow body and the ends of which are respectively secured to the small base and the windlass or the bow of the boat when the device is submerged so that the removal of the device is carried out by exerting traction on the ascent cable until the small base of the hollow body is above the large base, the entire device then being reassembled by simultaneously pulling on the first cable connected to the large base and on the cable.
D'autres avantages et caractéristiques ressortiront mieux de la description qui va suivre, de plusieurs variantes d'exécution, données à titre d'exemples non limitatifs, du dispositif pour amortir les mouvements verticaux et/ou de roulis d'un bateau ancré conforme à l'invention, en référence aux dessins annexés sur lesquelsOther advantages and characteristics will emerge more clearly from the description which follows, of several alternative embodiments, given by way of nonlimiting examples, of the device for damping the vertical and / or roll movements of an anchored boat conforming to the invention, with reference to the accompanying drawings in which
- la figure 1 est une vue en perspective déchirée du dispositif pour amortir les mouvements verticaux d'un bateau ancré conforme à l'invention,FIG. 1 is a torn perspective view of the device for damping the vertical movements of an anchored boat according to the invention,
- la figure 2 est une vue en coupe radiale du dispositif conforme à l'invention représenté sur la figure 1,FIG. 2 is a view in radial section of the device according to the invention shown in FIG. 1,
- la figure 3 est une vue en coupe radiale partielle du dispositif conforme à l'invention muni d'un clapet antiretour,FIG. 3 is a view in partial radial section of the device according to the invention provided with a non-return valve,
- la figure 4 est une vue en coupe radiale partielle d'une variante d'exécution du dispositif conforme à 1 ' invention, - les figures 5a et 5b sont des vues en coupe radiale du dispositif conforme à l'invention lors du retrait dudit dispositif de l'eau,- Figure 4 is a partial radial sectional view of an alternative embodiment of the device according to the invention, - Figures 5a and 5b are views in radial section of the device according to the invention when removing said device some water,
- les figures 6a et 6b d'un bateau ancré muni du dispositif pour amortir les mouvements verticaux d'un bateau ancré suivant l'invention respectivement lorsque la proue du bateau se situe dans le creux de deux vagues successives et lorsque ledit bateau est entraîné verticalement par la crête d'une vague.- Figures 6a and 6b of an anchored boat provided with the device for damping the vertical movements of a boat anchored according to the invention respectively when the bow of the boat is located in the hollow of two successive waves and when said boat is driven vertically by the crest of a wave.
- la- figure 7 est une vue de côté d'un bateau à voile muni du dispositif suivant l'invention positionné le long d'un flanc dudit bateau afin d'amortir les mouvements de roulis de ce dernier,FIG. 7 is a side view of a sailing boat fitted with the device according to the invention positioned along a side of said boat in order to damp the roll movements of the latter,
- la figure 8 est une vue de face du bateau à voile muni du dispositif suivant l'invention représenté sur la figure 7.- Figure 8 is a front view of the sailing boat provided with the device according to the invention shown in FIG. 7.
En références aux figures 1 et 2, le dispositif 1 pour amortir les mouvements verticaux d'un bateau ancré est constitué d'un corps creux tronconique 2, de préférence obtenu dans un matériau flexible imperméable tel que du tissu par exemple, comprenant une grande base ouverte 3 de section globalement circulaire reliée au guindeau ou à la proue d'un bateau, comme il sera détaillé plus loin, par un premier câble 4 solidaire de quatre suspentes 5a, 5b, 5c, 5d respectivement solidarisées en quatre points du bord de la grande base 3 deux à deux diamétralement opposées, le premier câble 4 étant solidarisé aux quatre suspentes 5a, 5b, 5c, 5d par un anneau 6 par exemple. Le corps creux tronconique 2 comprend, par ailleurs, une petite base ouverte 7 munie d'un lest 8 solidarisé à ladite petite base 7 par deux petits câbles 9a, 9b de même longueur dont les extrémités libres sont respectivement fixées aux bords de la petite base 7 en deux points diamétralement opposés et au lest 8, de telle sorte que, lorsque le corps creux 2 est immergé, suspendu par le câble 4, ledit corps creux 2 s'étende verticalement, la grande base 3 au-dessus de la petite base 7 comme on le verra plus loin.Referring to Figures 1 and 2, the device 1 for damping the vertical movements of an anchored boat consists of a frustoconical hollow body 2, preferably obtained in a flexible waterproof material such as fabric for example, comprising a large base open 3 of generally circular section connected to the windlass or to the bow of a boat, as will be detailed below, by a first cable 4 secured to four lines 5a, 5b, 5c, 5d respectively secured at four points from the edge of the large base 3 two with two diametrically opposite, the first cable 4 being secured to the four lines 5a, 5b, 5c, 5d by a ring 6 for example. The frustoconical hollow body 2 also comprises a small open base 7 provided with a ballast 8 secured to said small base 7 by two small cables 9a, 9b of the same length, the free ends of which are respectively fixed to the edges of the small base. 7 at two diametrically opposite points and to the ballast 8, so that, when the hollow body 2 is immersed, suspended by the cable 4, said hollow body 2 extends vertically, the large base 3 above the small base 7 as will be seen later.
Par ailleurs et selon une caractéristique particulièrement avantageuse du dispositif conforme à l'invention, la grande base 3 et la petite base 7 du corps creux 2 comprennent une bande annulaire 10 et respectivement 11, obtenues dans un matériau flexible ou semi-flexible, tel que du tissu épais imperméable par exemple, et respectivement solidarisés sur la face externe dudit corps creux 2. De la même manière, le corps creux 2 comprend entre la grande base 3 et la petite base 7 des bandes annulaires intermédiaires 12,13 et 14 obtenues dans un matériau flexible ou semi-flexible, solidarisées- sur la face externe du corps creux 2 et régulièrement espacées afin d'améliorer la résistance dudit corps creux 2. Les bandes annulaires 10 à 14 sont solidarisées sur la face externe du corps creux 2 par tout moyen approprié tel que, par exemple, par collage ou par des coutures.Furthermore and according to a particularly advantageous characteristic of the device according to the invention, the large base 3 and the small base 7 of the hollow body 2 comprise an annular band 10 and respectively 11, obtained in a flexible or semi-flexible material, such as thick waterproof fabric for example, and respectively secured on the external face of said hollow body 2. Likewise, the hollow body 2 comprises between the large base 3 and the small base 7 intermediate annular bands 12, 13 and 14 obtained in a flexible or semi-flexible material, secured to the external face of the hollow body 2 and regularly spaced in order to improve the resistance of said hollow body 2. The annular bands 10 to 14 are secured to the external face of the hollow body 2 by all suitable means such as, for example, by gluing or by seams.
Il va de soi que lesdites bandes annulaires 10 à 14 peuvent être solidarisées sur la face interne du corps creux 2 sans pour autant sortir du cadre de l'invention. Selon une variante d'exécution particulièrement avantageuse, non représentée sur les figures, le bord de la grande base 3 du corps 2 est solidaire d'un cadre annulaire constitué de deux tubes hémicirculaires articulés autour de charnières qui permettent de plier le dispositif de manière à réduire son encombrement pour son rangement après son utilisation.It goes without saying that said annular bands 10 to 14 can be secured on the internal face of the hollow body 2 without departing from the scope of the invention. According to a particularly advantageous variant, not shown in the figures, the edge of the large base 3 of the body 2 is secured to an annular frame consisting of two semicircular tubes articulated around hinges which allow the device to be folded so as to reduce its size for storage after use.
Afin de faciliter le retrait du dispositif, ce dernier comprend, en référence aux figures 1 et 2, un second câble de remontée 15 du dispositif 1 s 'étendant par l'intérieur du corps creux 2 et dont les extrémités sont respectivement solidaires de la petite base 7 et du guindeau ou de la proue du bateau comme il sera détaillé plus loin. Le second câble de remontée 15 est, par exemple, solidarisé à la petite base 7 par un anneau 16 solidaire de l'extrémité libre du second câble de remontée 15 et coulissant le long d'une tige s 'étendant diamétralement d'un bord à l'autre de la petite base 7.In order to facilitate the removal of the device, the latter comprises, with reference to FIGS. 1 and 2, a second ascent cable 15 of the device 1 extending from the inside of the hollow body 2 and the ends of which are respectively integral with the small base 7 and the windlass or bow of the boat as will be detailed later. The second ascent cable 15 is, for example, secured to the small base 7 by a ring 16 secured to the free end of the second ascent cable 15 and sliding along a rod extending diametrically from an edge to the other from small base 7.
Selon une variante d'exécution du dispositif pour amortir les mouvements verticaux d'un bateau ancré conforme à l'invention et en référence à la figure 8, la petite base 7 comprend un clapet anti-retour 18 constitué, par exemple, d'une bague 19 solidaire de la périphérie de la petite base 7 et de deux volets pivotants autour d'un axe 21 vers l'intérieur du corps creux 2, comme l'indique les flèches a de la figure 3, l'axe 21 s ' étendant diamétralement d'un bord à l'autre de la petite base 7 et lesdits volets 21 prenant appui sur la bague 19 pour fermer la petite base 7.According to an alternative embodiment of the device for damping the vertical movements of an anchored boat according to the invention and with reference to FIG. 8, the small base 7 comprises a non-return valve 18 consisting, for example, of a ring 19 integral with the periphery of the small base 7 and two pivoting flaps about an axis 21 towards the inside of the hollow body 2, as indicated by the arrows a in FIG. 3, the axis 21 extending diametrically from one edge to the other of the small base 7 and said flaps 21 bearing on the ring 19 to close the small base 7.
Il est bien évident que le clapet anti-retour 19 peut ne comporter qu'un unique volet sans pour autant sortir du cadre de l'invention.It is obvious that the non-return valve 19 may have only one flap without departing from the scope of the invention.
Par ailleurs, dans cette variante d'exécution particulière du dispositif conforme à l'invention, l'extrémité du second câble de remontée 15 est alors solidaire du ou des volets du clapet anti-retour 18.Furthermore, in this particular variant of the device according to the invention, the end of the second ascent cable 15 is then secured to the flap or flaps of the non-return valve 18.
Selon une autre variante d'exécution du dispositif conforme à l'invention, en référence à la figure 4, le lest 8 consiste dans un poids en forme d'anneau 22 positionné à la périphérie de la petite base 7. Le poids en forme d'anneau 22 s'étend, par exemple, à l'extérieur du corps creux 2 et il est maintenu par une bande de tissu 23 cousue sur ledit corps creux 2. II est bien évident que le poids en forme d'anneau 22 peut s'étendre à l'intérieur du corps creux 2 et qu'il peut être maintenu par tout moyen approprié tel que par exemple une bande de tissu collée audit corps creux 2.According to another alternative embodiment of the device according to the invention, with reference to FIG. 4, the ballast 8 consists of a ring-shaped weight 22 positioned at the periphery of the small base 7. The d-shaped weight ring 22 extends, for example, outside the hollow body 2 and is held by a strip of fabric 23 sewn onto said hollow body 2. It is obvious that the ring-shaped weight 22 can s extend inside the hollow body 2 and that it can be maintained by any suitable means such as for example a strip of fabric glued to said hollow body 2.
Selon une dernière variante d'exécution du dispositif conforme à l'invention, afin d'empêcher le roulis d'un bateau à voile dit voilier 24, en référence aux figures 7 et 8, la base 3 du corps creux 2 est fixée à l'extrémité libre d'une drisse 25, telle que la drisse de grand voile par exemple, d'un mât 26 du voilier 24 par l'intermédiaire du câble 4 de telle sorte que le corps creux 2 s'étende verticalement à côté de la coque, à hauteur du pied de mât 26 et maintenu à distance de la coque par un écarteur 27. Ledit écarteur 24 est constitué de deux bras 27a et 27b articulés autour d'une charnière 28 et dont les extrémités libres prennent appui sur la coque, sous un garde corps 29, à hauteur du pied de mât 26 de telle sorte que les bras 27a et 27b s'étendent globalement perpendiculairement à la coque, le câble 4 prenant appui sur la charnière 28. Afin d'empêcher la chute de l' écarteur 27 dans l'eau lors du retrait du dispositif, le dispositif comprend un bout 30, c'est-à-dire un cordage dont les extrémités libres sont respectivement solidarisées au cordage du garde-corps 29 et à l' écarteur 27 au niveau de la charnière 28 par exemple. On observera, par ailleurs, que, dans cet exemple particulier de réalisation, le câble de remontée 15 du corps creux 2 s'étend à l'extérieur dudit corps 2 sans pour autant sortir du cadre de l'invention.According to a final variant of the device according to the invention, in order to prevent the roll of a sailing boat known as a sailboat 24, with reference to FIGS. 7 and 8, the base 3 of the hollow body 2 is fixed to the free end of a halyard 25, such as the main halyard for example, of a mast 26 of the sailboat 24 via the cable 4 so that the hollow body 2 extends vertically next to the hull, at the height of the mast 26 and kept at a distance from the hull by a spacer 27. Said spacer 24 consists of two arms 27a and 27b articulated around a hinge 28 and whose free ends bear on the hull, under a body guard 29, at the height of the mast 26 so that the arms 27a and 27b extend generally perpendicular to the hull, the cable 4 bearing on the hinge 28. In order to prevent the fall of the spacer 27 in water when removing the device, the device comprises a tip 30, that is to say a cord whose free ends are respectively secured to the cord of the railing 29 and to the spacer 27 at the hinge 28 for example. It will also be observed that, in this particular embodiment, the ascent cable 15 of the hollow body 2 extends outside of said body 2 without however departing from the scope of the invention.
On décrira maintenant, en référence aux figures 5a, 5b et 6a, 6b le fonctionnement du dispositif pour amortir les mouvements verticaux d'un bateau ancré conforme à 1' invention.We will now describe, with reference to FIGS. 5a, 5b and 6a, 6b the operation of the device for damping the vertical movements of an anchored boat according to the invention.
En référence à la figure 5a, le dispositif 1 est immergé dans l'eau et amarré par son premier câble 4 à la proue d'un bateau B, l'amarrage s 'effectuant soit au guindeau 31 soit à un taquet d'amarrage 32 positionné sur le pont du bateau B à proximité de sa proue. On entend par guindeau 31 un dispositif servant à virer les chaînes, à mouiller et à relever les ancres à bord d'un navire, qui est habituellement constitué d'un rouleau d'axe globalement horizontal autour duquel est enroulée la chaîne de la ligne de mouillage du bateau, ledit rouleau étant avantageusement motorisé. Lorsque la proue du bateau est positionnée dans un creux entre deux vagues successives V, en référence à la figure 6a, la force exercée sur la proue du bateau B par le dispositif 1 est nulle ou quasiment nulle, la force exercée par le dispositif 1 consistant dans le poids du lest 8 qui est négligeable par rapport au poids du bateau B. Lorsque la proue du bateau B est entraînée verticalement par la crête d'une vague V, en référence à la figure 6b_, le déplacement vertical du bateau B provoque la remontée du dispositif 1 remplit d'eau. Ainsi, le dispositif 1 procure, lors de la remontée de la proue du bateau B, une force pondérale Fp directement proportionnelle au volume d'eau contenu dans le corps creux 2 qui s'oppose au déplacement vertical dudit bateau B, schématiquement représentée par la flèche Fv de sorte que ledit déplacement vertical de la proue du bateau est limité. A cet égard, on a représenté en traits pointillés sur la figure 5b, un bateau B au grès des vagues V, c'est-à-dire un bateau B non équipé du dispositif 1 tel que décrit précédemment, entraîné verticalement par la crête d'une vague V. On observera que, pour un corps -creux 2 présentant une grande base 3 (figures 1 et 2) d'I m 50 de section, une petite base 7 de 50 mm de section et une longueur de 5 m séparant la grande base 3 de la petite base 7, le poids de l'eau contenue dans le corps creux 2 est approximativement de 3 tonnes .With reference to FIG. 5a, the device 1 is immersed in water and moored by its first cable 4 to the bow of a boat B, the mooring being carried out either at the windlass 31 or at a mooring cleat 32 positioned on the deck of boat B near its bow. Windlass 31 means a device used to turn the chains, to anchor and to lift the anchors on board a ship, which usually consists of a roller with a generally horizontal axis around which the chain of the line is wound. wetting of the boat, said roller being advantageously motorized. When the bow of the boat is positioned in a hollow between two successive waves V, with reference to FIG. 6a, the force exerted on the bow of the boat B by the device 1 is zero or almost zero, the force exerted by the device 1 consisting in the weight of ballast 8 which is negligible compared to the weight of boat B. When the bow of boat B is driven vertically by the crest of a wave V, with reference to Figure 6b_, the vertical displacement of boat B causes the reassembly of the device 1 fills with water. Thus, the device 1 provides, during the ascent of the bow of the boat B, a weight force F p directly proportional to the volume of water contained in the hollow body 2 which opposes the vertical movement of said boat B, schematically represented by arrow F v so that said vertical displacement of the bow of the boat is limited. In this regard, there is shown in dotted lines in Figure 5b, a boat B sandstone waves V, that is to say a boat B not equipped with the device 1 as described above, driven vertically by the crest of 'a wave V. It will be observed that, for a hollow body 2 having a large base 3 (Figures 1 and 2) of Im 50 in section, a small base 7 of 50 mm in section and a length of 5 m separating the large base 3 of the small base 7, the weight of the water contained in the hollow body 2 is approximately 3 tonnes.
Il est bien évident que les dimensions du dispositif 1 décrit précédemment dépendent notamment de la taille et du poids du bateau B. Par ailleurs, on notera que le déplacement vertical du bateau B étant limité, la traction sur la chaîne de la ligne de mouillage de ce dernier est également réduite évitant ainsi un glissement de l'ancre sur le fond marin qui se traduirait par une dérive du bateau B à la surface de l'eau. Enfin, le déplacement vertical du bateau B étant notablement réduit, les passagers de ce dernier ne perçoivent plus, ou du moins perçoivent moins, les mouvements des vagues qui sont à l'origine du mal de mer.It is obvious that the dimensions of the device 1 described above depend in particular on the size and weight of the boat B. Furthermore, it will be noted that the vertical movement of the boat B is limited, the traction on the chain of the mooring line of the latter is also reduced, thus avoiding a sliding of the anchor on the seabed which would result in a drift of boat B on the surface of the water. Finally, the vertical movement of boat B being significantly reduced, the passengers of the latter no longer perceive, or at least perceive less, the movements of the waves which are the cause of seasickness.
Le retrait du dispositif, en référence aux figures 5a et 5b, s'effectue en effectuant une traction sur le second câble de remontée 15 jusqu'à ce que la petite base 7 du corps creux 2 soit au-dessus de la grande base 7, l'ensemble du dispositif étant alors remonté en tirant simultanément sur le premier câble 4 relié à la grande base et sur le câble de remontée 15.The withdrawal of the device, with reference to FIGS. 5a and 5b, is carried out by pulling on the second ascent cable 15 until the small base 7 of the hollow body 2 is above the large base 7, the entire device then being reassembled by simultaneously pulling on the first cable 4 connected to the large base and on the ascent cable 15.
Accessoirement, en référence aux figures 6a, 6b_ le premier câble 4 et/ou le second câble de remontée 15 comprennent une bouée ou un flotteur 33 afin d'éviter que le dispositif 1 ne coule lors d'une mauvaise manœuvre. Ladite bouée 33 est de préférence solidarisée au premier câble 4 ou au second câble de remontée 15 de telle sorte qu'elle s'étende continuellement entre la proue du bateau B et la surface de l'eau.Incidentally, with reference to Figures 6a, 6b_ the first cable 4 and / or the second ascent cable 15 comprise a buoy or a float 33 to prevent the device 1 from sinking during a bad maneuver. Said buoy 33 is preferably secured to the first cable 4 or to the second ascent cable 15 so that it extends continuously between the bow of boat B and the surface of the water.
Enfin il va de soi que le dispositif pour amortir les mouvements verticaux d'un bateau ancré peut consister dans un corps creux tronc-polyédrique, c'est-à-dire un polyèdre tronqué, et que les exemples que l'on vient de donner ne sont que des illustrations particulières en aucun cas limitatives des domaines d'application de l'invention. Finally, it goes without saying that the device for damping the vertical movements of an anchored boat can consist of a hollow trunk-polyhedral body, that is to say a truncated polyhedron, and that the examples which have just been given are only particular illustrations in no way limiting the fields of application of the invention.

Claims

REVENDICATIONS
1 - Dispositif (1) pour amortir les mouvements de roulis et/ou verticaux d'un bateau (B) ancré, lesdits mouvements du bateau (B) étant causés par les mouvements ondulatoires de la surface de la mer, tels que la houle ou le clapot par exemple, communément appelés vagues (V) , de manière à éviter la dérive du bateau, caractérisé en ce qu'il est constitué de moyens s ' étendant partiellement sous la surface de l'eau, connectés à un élément du bateau et procurant sur la coque du bateau une force pondérale qui s'oppose audit déplacement lorsque la coque de ce dernier est entraînée verticalement par la crête d'une vague (V) et une force nulle lorsque la coque du bateau (B) se situe dans le creux d'une vague.1 - Device (1) for damping the roll and / or vertical movements of an anchored boat (B), said movements of the boat (B) being caused by wave movements of the sea surface, such as swell or the chop for example, commonly called waves (V), so as to avoid the drift of the boat, characterized in that it consists of means extending partially under the surface of the water, connected to an element of the boat and providing on the hull of the boat a weight force which opposes said displacement when the hull of the latter is driven vertically by the crest of a wave (V) and zero force when the hull of the boat (B) is located in the hollow of a wave.
2 - Dispositif suivant la revendication précédente caractérisé en ce que les moyens sont constitués d'un corps creux (2) tronconique ou tronc-polyédrique comprenant une grande base ouverte (3) reliée à un élément du bateau (B) par un câble (4) et une petite base ouverte (7) munie d'un lest (8) de telle sorte que, lorsque le corps creux (2) est partiellement immergé, suspendu par le câble (4), ledit corps creux (2) s'étende verticalement, la grande base (3) légèrement au-dessus du niveau de l'eau, ladite grande base s'étendant au-dessus de la petite base (7).2 - Device according to the preceding claim characterized in that the means consist of a hollow body (2) frustoconical or polyhedral trunk comprising a large open base (3) connected to an element of the boat (B) by a cable (4 ) and a small open base (7) provided with a ballast (8) so that, when the hollow body (2) is partially submerged, suspended by the cable (4), said hollow body (2) extends vertically, the large base (3) slightly above the water level, said large base extending above the small base (7).
3 - Dispositif suivant la revendication précédente caractérisé en ce que le corps creux (2) est obtenu dans un matériau flexible imperméable.3 - Device according to the preceding claim characterized in that the hollow body (2) is obtained in a flexible waterproof material.
4 - Dispositif suivant les revendications 2 et 3 caractérisé en ce que le bord de la grande base (3) du corps creux (2) est solidaire d'un cadre annulaire constitué de deux tubes hémicirculaires articulés.4 - Device according to claims 2 and 3 characterized in that the edge of the large base (3) of the hollow body (2) is integral with an annular frame consisting of two articulated semicircular tubes.
5 - Dispositif suivant les revendications 2 et 3 caractérisé en ce que la grande base (7) et la petite base (3) du corps creux (2) comprennent respectivement une bande annulaire (10,11) obtenue dans un matériau flexible ou semi-flexible solidarisée sur la face interne et/ou externe du corps creux (2) .5 - Device according to claims 2 and 3 characterized in that the large base (7) and the small base (3) of the hollow body (2) respectively comprise an annular band (10,11) obtained in a flexible or semi-material flexible secured to the internal and / or external face of the hollow body (2).
6 - Dispositif suivant les revendications 2 à 5 caractérisé en ce qu'il comprend entre la grande base (3) et la petite base (7) du corps creux (2) des bandes annulaires (12,13,14) obtenue dans un matériau flexible ou semi-flexible et solidarisées sur la face interne et/ou externe du corps creux (2) et régulièrement espacées afin d'améliorer la résistance dudit corps creux (2).6 - Device according to claims 2 to 5 characterized in that it comprises between the large base (3) and the small base (7) of the hollow body (2) annular bands (12,13,14) obtained in a flexible or semi-flexible material and secured to the internal and / or external face of the hollow body (2) and regularly spaced in order to improve the resistance of said hollow body (2).
7 - Dispositif suivant l'une quelconque des revendications 2 à 6 caractérisé en ce qu'il comprend un second câble de remontée (15) du dispositif (1) s'étendant par l'intérieur du corps creux (2) et dont les extrémités sont respectivement solidaires de la petite base (7) et du guindeau (31) ou de la proue du bateau (B) lorsque le dispositif (1) est immergé de telle sorte que le retrait du dispositif (1) s'effectue en exerçant une traction sur le câble de remontée (15) jusqu'à ce que la petite base (7) du corps creux (2) soit au-dessus de la grande base (3) , l'ensemble du dispositif (1) étant alors remonté en tirant simultanément sur le premier câble (4) relié à la grande base (3) et sur le câble de remontée (15) . 8 - Dispositif suivant l'une quelconque des revendications 2 à 7 caractérisé en ce que la petite base (3) comprend un clapet anti-retour (18) constitué par exemple d'une bague (19) solidaire de la périphérie de la petite base (7) et d'au moins un volet (20) pivotant vers l'intérieur du corps creux (2).7 - Device according to any one of claims 2 to 6 characterized in that it comprises a second ascent cable (15) of the device (1) extending through the interior of the hollow body (2) and whose ends are respectively secured to the small base (7) and the windlass (31) or the bow of the boat (B) when the device (1) is immersed so that the withdrawal of the device (1) is carried out by exerting a pull on the ascent cable (15) until the small base (7) of the hollow body (2) is above the large base (3), the entire device (1) being then reassembled simultaneously pulling on the first cable (4) connected to the large base (3) and on the ascent cable (15). 8 - Device according to any one of claims 2 to 7 characterized in that the small base (3) comprises a non-return valve (18) consisting for example of a ring (19) secured to the periphery of the small base (7) and at least one flap (20) pivoting towards the inside of the hollow body (2).
9 - Dispositif suivant les revendications 7 et 8 caractérisé en ce que l'extrémité du second câble de remonté (15) est solidaire du ou des volets (20) du clapet anti-retour (18). 10 - Dispositif suivant l'une quelconque des revendications 2 à 9 caractérisé en ce que la base (3) du corps creux (2) est fixé à l'extrémité libre d'une drisse (25) d'un mât (26) d'un voilier (24) par l'intermédiaire du câble (4) de telle sorte- que le corps creux (2) s'étende verticalement à coté de la coque, à hauteur du pied de mât (26) et maintenu à distance de ladite coque par un écarteur (27) . 9 - Device according to claims 7 and 8 characterized in that the end of the second lift cable (15) is integral with the flap (s) (20) of the non-return valve (18). 10 - Device according to any one of claims 2 to 9 characterized in that the base (3) of the hollow body (2) is fixed to the free end of a halyard (25) of a mast (26) d 'a sailboat (24) via the cable (4) so that the hollow body (2) extends vertically next to the hull, at the height of the mast foot (26) and kept at a distance from said shell by a spacer (27).
PCT/FR2002/002384 2001-07-06 2002-07-08 Device for damping the movements of an anchored boat WO2003004349A1 (en)

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US1299186A (en) * 1918-11-18 1919-04-01 Tatsujiro Imaizumi Ship-stabilizer.
US3064613A (en) * 1961-04-21 1962-11-20 Hubick Leonard Stabilizer for boats
AU2169577A (en) 1976-02-04 1978-08-03 Vivian W Mooring stabilisers for small craft
FR2473009A1 (en) * 1980-01-02 1981-07-10 Viozelange Pierre Stabiliser for marine vessel - has suspended horizontal frames with sheet resting on grid which flexes on downward motion

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US300764A (en) * 1884-06-24 Adjustable marine drag
US717890A (en) * 1901-01-24 1903-01-06 Thomas Spencer Miller Sea-anchor.
US1299186A (en) * 1918-11-18 1919-04-01 Tatsujiro Imaizumi Ship-stabilizer.
US3064613A (en) * 1961-04-21 1962-11-20 Hubick Leonard Stabilizer for boats
AU2169577A (en) 1976-02-04 1978-08-03 Vivian W Mooring stabilisers for small craft
FR2473009A1 (en) * 1980-01-02 1981-07-10 Viozelange Pierre Stabiliser for marine vessel - has suspended horizontal frames with sheet resting on grid which flexes on downward motion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101194763B1 (en) 2010-06-17 2012-10-25 삼성중공업 주식회사 Ship that have reduced slamming
CN109455274A (en) * 2019-01-02 2019-03-12 上海海事大学 A kind of pier stabilising arrangement
CN109455274B (en) * 2019-01-02 2024-02-27 上海海事大学 Water platform stabilizing device

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FR2826927A1 (en) 2003-01-10

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