EP1167178B1 - Protection device for a tether cable of a submerged object - Google Patents

Protection device for a tether cable of a submerged object Download PDF

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Publication number
EP1167178B1
EP1167178B1 EP01401559A EP01401559A EP1167178B1 EP 1167178 B1 EP1167178 B1 EP 1167178B1 EP 01401559 A EP01401559 A EP 01401559A EP 01401559 A EP01401559 A EP 01401559A EP 1167178 B1 EP1167178 B1 EP 1167178B1
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EP
European Patent Office
Prior art keywords
cable
cables
dead body
boat
ship
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP01401559A
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German (de)
French (fr)
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EP1167178A1 (en
Inventor
André Honoré Adolphe Meirier
Daniel Raymond Marie Scourzic
Claude Jean Guy Villa l'Ensoulei Sorin
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ECA SA
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ECA SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/56—Towing or pushing equipment
    • B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/34—Diving chambers with mechanical link, e.g. cable, to a base
    • B63C11/36—Diving chambers with mechanical link, e.g. cable, to a base of closed type
    • B63C11/42—Diving chambers with mechanical link, e.g. cable, to a base of closed type with independent propulsion or direction control

Definitions

  • the present invention falls within the field of the protection of a connecting cable between a submarine object and a surface vessel, especially in the vicinity of one or more propellers of the surface vessel.
  • the connecting cable is an electrical cable, transmitting either feed energy from the boat to submarine object, transmission data of the kind remote control, state of the object, in both directions, ensuring both types of transmission. It is therefore useful to protect this cable when placing to the water of the object and the cable as long as said object evolves in the water and during his recovery on board.
  • the present invention proposes to remedy the disadvantages mentioned above.
  • the present invention proposes to prevent damage connecting cable by the propulsion system of the boat.
  • the device is intended for cable protection connecting a surface ship and an underwater object.
  • the device comprises a dead body, a cable guide associated with the body, at least two dead body support cables, and at least two a connecting member connecting the support cables and mounted substantially transversely to the support cables.
  • the dead body support cables are arranged on one side and the other of the cable connecting the ship and the underwater object. This determines the maintenance of the dead body in an area determined in relation to the ship.
  • the dead body support cables are arranged substantially transversely to the ship.
  • the device includes at least three dead body support cables.
  • a cable is in the central position and the other cables are in a lateral position, substantially in a plane transverse to the ship.
  • the device comprises a cable winding means, for example a winch by cable.
  • the connecting member comprises at least one rod connecting at least two support cables.
  • said rod is general shape straight and arranged substantially horizontally.
  • said rod is generally annular shape and disposed substantially horizontally.
  • the device comprises a unit of control of the winding of the cables.
  • the invention also relates to a computer program or controller comprising program code means for setting implement steps of deployment of the device, when said program
  • the dead body forces the connecting cable connecting the ship and the object submarine to follow a determined course between the ship and said body dead and avoids contact between said connecting cable and the means of propulsion of the ship such as propellers.
  • the cable guide allows the connecting cable connecting the vessel and the underwater object to slide relative to the dead body while forcing said connecting cable to pass near said dead body.
  • the presence of two support cables of the dead body allows, when their attachment points on the boat are properly removed, maintain the dead body in a certain position relative to the boat and avoid entanglement of the support cables and the connecting cable.
  • the cable guide associated with the dead body allows the connecting cable to slide by report to the dead body and therefore to be unwound and rolled up from the boat on which is usually provided a winch for this purpose.
  • the liaison body transversal is in a generally horizontal plane and maintains the spacing of the support cables.
  • a boat from surface referenced 1 as a whole and of which only the rear part is visible, is provided with a bridge 2 and a propulsion system comprising two propellers 3 and 4.
  • the underwater object 6 can be, for example, a mine hunting submersible or exploration.
  • the deflection pulley 9 is arranged cantilevered rearward.
  • Three winches are also located at the back of Deck 2, a left side winch 10, a central winch 11 and a right lateral winch 12. On these winches are wound respectively support cables 13, 14 and 15. The free ends of the cables 13, 14 and 15 are attached to a dead body 16 which will be described in more detail with reference to FIG. 2.
  • the central winch 11 is disposed in the immediate vicinity of the pulley 9, for example slightly below and in front of said idler pulley.
  • plurality of rods 17 to 20 straight and arranged in a plane transverse to the boat, connect cables 13 to 15 together.
  • the dead body 16 illustrated in greater detail in FIG. 2, is of a mass of the order of one or several hundred kilos and can be realized with a hydrodynamic shape to avoid energy loss important when moving the boat, the dead body 16 being immersed.
  • the support cables 13 to 15 are connected and fixed respectively in anchoring holes 21 through 23 of the dead body 16.
  • the fastening hole 21 is arranged on the left side of the dead body 16, the fastening hole 22 is arranged in the center and the attachment hole 23 is arranged on the right side, in the direction progress of the boat.
  • a cable guide 24 is associated with the dead body 16 in position central to the back of the fastening hole 22.
  • the cable guide 24 is shaped annular and comprises two elements 25 and 26 each forming half of the cable guide 24 according to a section plane passing through the axis of said cable guide.
  • the element 26 is fixed to the dead body 16 and the element 25 is articulated on the dead body 16 or on the element 26 to allow the opening of the cable guide, which is illustrated in Figure 2 in the open position.
  • Axial drilling 27 through the cable guide 24 and has a flared shape at its two ends.
  • the connecting cable 5 is intended to be arranged in the passage 27 and be able to slide in without risk of deterioration its flared shape at its upper end and its lower end.
  • the winch 7, the tensioner 8 and the winches 10, 11 and 12 are each connected to a control unit, not shown for the sake of simplicity drawing, by wired or wireless link.
  • the control unit includes a processor, memory means and a control program stored in the memory means and able to be executed by the processor.
  • the control unit can be provided with manual control means like buttons, joysticks, touch screen, etc.
  • the control unit is able to control the different stages of implementation of the object submarine 6 and the cable protection device.
  • the winches 7 and 10 to 12 can be electric, hydraulic or pneumatic type.
  • the connecting cable 5 is almost completely wound on the drum of the winch 7.
  • the underwater object 6 is disposed on the deck 2 and is attached thereto removable.
  • the dead body 16 is raised in the upper position thanks to the winch 11, the lateral cables 13 and 15 being stretched between the winches respective 10 and 12 and the dead body 16, in almost horizontal position.
  • the dead body 16 is below and near the idler pulley 9.
  • the dead body 16 can be blocked by locking means integral with the boat 2 and more rigid than a cable connection.
  • the winches 10 to 12 and the winch 7 are then ordered to deviate their respective cables, the load of the dead body 16 being supported by the central winch 11.
  • the side cables 13 and 15 are kept at low voltage, just enough to avoid slack.
  • the winches 10 and 12 are controlled to tension the lateral cables 13 and 15 and take back the weight of the dead body 16.
  • the connecting cable 5 is maintained under low tension to avoid slackening. It will be noted that the cable unwinding speed must be adapted at each moment of the launching procedure due to the geometry of the set.
  • the connecting cable 5 passing through the cable guide 24 is attached at its end to the underwater object 6 which remains on the bridge 2.
  • the connecting cable 5 makes a go between the pulley of 9 and the cable guide 24 and a return between the cable guide 24 and the object submarine 6.
  • the control unit allows, thanks to its control, to obtain desired unwinding speeds.
  • the lengths of the lateral cables 13 and 15 are adjusted to remain equal in order to avoid unbalancing the dead body 16, especially with the speed of movement of the boat.
  • the submarine object 6 is set to water using a crane not shown and can then move away from the boat, as shown in Figure 5.
  • the deployed state (dead body 16 immersed) of the protective device is clearly visible in FIG. different cables 5, 10 and 12 are represented as being perfectly rights, which will not necessarily be the case in real situations.
  • the cable of link 5 is arranged behind the support cable 14 that it hides. The cable of support 14 is therefore not visible in FIG.
  • the rods 17 to 20 which are attached to heights staggered on the cables 10 and 12 are deployed parallel to one another substantially horizontally.
  • the rods 17 to 20 can be formed by tubes whose ends are provided with rings so as to be able to slide along cables 13 to 15.
  • a central ring is also provided to be able to slide along the central cable 14.
  • the spacing between rods 17 to 20 is provided by spacing ropes 28, 29, 30 and 31. All there are two spacers, one on each side of the boat.
  • the ropes 28 are fixed firstly to the rear of the boat, for example on the bridge 2 and on the other hand at one end of the rod 17.
  • the ropes 29 are arranged at one end on the rod 17 and at the other end on the rod 18.
  • the ropes 30 are attached at one end to the rod 18 and at the other end on the rod 19.
  • the ropes 31 are attached to one end on the rod 19 and at the other end on the rod 20.
  • the lines 28 to 31 can move to inside the respective rods or slide in rings for allow an adaptation of the geometry of the ropes and rods according the desired depth of the dead body 16.
  • FIG. 7 illustrates a variant in which the protection device comprises a dead body 16 held by two carrying cables 32 and 33 spaced from each other by a distance for example of the order of one meter and arranged towards the middle of the ship 1.
  • the cables 32 and 33 can be wound on a single double drum winch referenced 34 or, not shown, on two separate winches.
  • the rods that maintain the spacing between cables 32 and 33 are here from annular shape and bear the reference 35.
  • the annular rods 35 are connected to each other by means of strands 36. At least two strands 36 are provided between two stems annular 35 neighbors, but preferably three or more for a better holding in position.
  • the annular rods 35 are able to slide, by example by means of rings, with respect to the carrying cables 32 and 33, and unfold during the immersion of the dead body 16. The annular rods 35 come to rest on the dead body 16 during its ascent.
  • the cable of connection 5 is thus guided between the pulley 9 and the dead body 16 by the plurality of annular rods 35, the annular rods 35 having a spacing along the carrier cables 32 and 33, that is substantially along a vertical axis, determined by the spacing strings 36.
  • the rod annular 35 upper will be connected to the boat 1, for example to the bridge 2, by a rope not shown.
  • the invention makes it possible to guide the connecting cable below the propellers and interpose a curtain deployed between said connecting cable and the propellers or, more generally, the means of propulsion, to prevent a possible displacement of the connecting cable to these propulsion means.
  • the heavy dead body equipped with a lockable cable guide is immersed by the rear of the boat below the level of the means of propulsion.
  • At minus two auxiliary cables are attached on both sides of the dead body and on the sides of the back shelf with the function of preventing the body death to turn and maintain the protective rods that form a curtain between the connecting cable and the propulsion means. Winches of maneuvering support cables allow to lower or to go up the dead body and more generally the protection device between his storage position out of water and its operational position submerged.
  • the protection device is easily deployable and foldable. It has a small footprint in the folded state in the measure where the protective rods, whether straight or annular, can stack on top of each other. The depth of immersion of the dead body can be adjusted precisely thanks to the winches.
  • the time of implementation of the protective devices is very brief and the driving energy during the immersion is ensured by the force of gravity on the dead body and is therefore done without energy consumption from the boat.
  • the geometry of the protective device is adaptable to a boat to another playing on the length of the protective rods when straight and relatively universal in the case of stems annular protection.
  • provision can be made for the device in the folded state protection is a height requirement of the order of one meter.
  • the deployment time may be of the order of 2 minutes.

Abstract

The boat has a central cable winch (11) carrying the main cable attached to the object. Protection assembly comprises a dead weight (16) with a cable guide (24) mounted on this central cable winch (11). Two other winches (10,12) are placed at the corners of the boat deck (2). The corner winches are supporting two cables (13,15) attached at the other end to the dead weight (16). Rods (17,20) are transversal to the cables. Independent claims are also included for the software for computer or automate and the medium storing the software.

Description

La présente invention relève du domaine de la protection d'un câble de liaison entre un objet sous-marin et un bateau de surface, notamment au voisinage d'une ou plusieurs hélices du bateau de surface.The present invention falls within the field of the protection of a connecting cable between a submarine object and a surface vessel, especially in the vicinity of one or more propellers of the surface vessel.

Lors de la mise à l'eau d'un objet sous-marin à partir de la plage arrière d'un bateau de surface, les mouvements du bateau, de l'objet, conjugués à l'effet des courants marins et du flux d'une ou plusieurs hélices du bateau, peuvent amener le câble de liaison au contact des hélices ou de leurs carènes éventuelles et provoquer des blessures ou même la coupure du câble, ce qui rend impossible l'accomplissement de la mission à laquelle est destiné l'objet sous-marin, mission pendant laquelle l'objet et le bateau peuvent se déplacer à des vitesses de plusieurs noeuds.When launching an underwater object from the beach back of a surface ship, the movements of the boat, the object, conjugated to the effect of ocean currents and the flow of one or more propellers, can bring the connecting cable into contact with propellers or their hulls, and cause injury or even the cut of the cable, which makes impossible the fulfillment of the mission for which the submarine object is intended, during which the object and the boat can move at speeds of several knots.

En général, le câble de liaison est un câble électro-porteur, transmettant soit l'énergie d'alimentation en provenance du bateau vers l'objet sous-marin, soit des données de transmission du genre télécommande, état de l'objet, dans les deux sens, soit assurant les deux types de transmission. Il est donc utile de protéger ce câble lors de la mise à l'eau de l'objet et du câble et ce tant que ledit objet évolue dans l'eau et pendant sa récupération à bord.In general, the connecting cable is an electrical cable, transmitting either feed energy from the boat to submarine object, transmission data of the kind remote control, state of the object, in both directions, ensuring both types of transmission. It is therefore useful to protect this cable when placing to the water of the object and the cable as long as said object evolves in the water and during his recovery on board.

On se sert aujourd'hui de tubes rigides ou articulés de guidage de câbles, un tube articulé étant également appelé ensemble caréné flexible. Toutefois, lors de l'avancement du bateau, des efforts importants s'exercent sur la structure du tube et fragilisent l'ensemble, notamment en flexion. Le câble de liaison risque de se bloquer dans le tube ou de se détériorer par frottement et usure dans le tube. Le tube est un système mécanique complexe et relativement fragile. Nowadays, rigid or articulated tubes for guiding cables, an articulated tube being also called flexible ducted assembly. However, when advancing the boat, significant efforts exert on the structure of the tube and weaken the whole, in particular in bending. The connecting cable may lock in the tube or become deteriorate by friction and wear in the tube. The tube is a system complex and relatively fragile mechanics.

On peut également se servir de lests ou de corps morts immergés au bout d'un câble de support. Le document US 4 184 209 décrit une palette fixée à l'extrémité inférieure d'un câble de support pour maintenir ladite extrémité en profondeur. Ceci permet un guidage du câble au niveau du corps mort mais ne permet pas de le protéger vis-à-vis des hélices du bateau. De plus, il existe un risque non négligeable d'emmêlement du câble de support et du câble de liaison.We can also use ballast or dead bodies immersed at the end of a support cable. US 4,184,209 describes a pallet attached to the lower end of a support cable to maintain said end deep. This allows guidance cable at the dead body but does not protect it vis-à-vis propellers of the boat. In addition, there is a significant risk entanglement of the support cable and the connecting cable.

La présente invention propose de remédier aux inconvénients évoqués ci-dessus.The present invention proposes to remedy the disadvantages mentioned above.

La présente invention propose d'empêcher l'endommagement du câble de liaison par le système de propulsion du bateau.The present invention proposes to prevent damage connecting cable by the propulsion system of the boat.

Le dispositif, selon un aspect de l'invention, est destiné à la protection pour câble reliant un navire en surface et un objet sous-marin. Le dispositif comprend un corps mort, un guide-câble associé au corps mort, au moins deux câbles de support du corps mort, et au moins un organe de liaison reliant les câbles de support et monté sensiblement transversalement aux câbles de support.The device, according to one aspect of the invention, is intended for cable protection connecting a surface ship and an underwater object. The device comprises a dead body, a cable guide associated with the body, at least two dead body support cables, and at least two a connecting member connecting the support cables and mounted substantially transversely to the support cables.

De préférence, les câbles de support du corps mort sont disposés d'un côté et de l'autre du câble reliant le navire et l'objet sous-marin. On détermine ainsi le maintien du corps mort dans une zone déterminée par rapport au navire.Preferably, the dead body support cables are arranged on one side and the other of the cable connecting the ship and the underwater object. This determines the maintenance of the dead body in an area determined in relation to the ship.

De préférence, les câbles de support du corps mort sont disposés sensiblement transversalement au navire.Preferably, the dead body support cables are arranged substantially transversely to the ship.

Dans un mode de réalisation de l'invention, le dispositif comprend au moins trois câbles de support du corps mort.In one embodiment of the invention, the device includes at least three dead body support cables.

Avantageusement, un câble est en position centrale et les autres câbles sont en position latérale, sensiblement dans un plan transversal au navire.Advantageously, a cable is in the central position and the other cables are in a lateral position, substantially in a plane transverse to the ship.

Dans un mode de réalisation de l'invention, le dispositif comprend un moyen d'enroulement par câble, par exemple un treuil par câble.In one embodiment of the invention, the device comprises a cable winding means, for example a winch by cable.

De préférence, l'organe de liaison comprend au moins une tige reliant au moins deux câbles de support. On pourra prévoir une pluralité de tiges qui maintiendront l'écartement entre les câbles de support et constitueront un rideau entre le câble reliant le navire et l'objet sous-marin, et les propulseurs du navire.Preferably, the connecting member comprises at least one rod connecting at least two support cables. We can foresee a plurality of rods that will maintain the spacing between the support cables and constitute a curtain between the cable connecting the ship and the submarine object, and the propellers of the ship.

Dans un mode de réalisation de l'invention, ladite tige est de forme générale droite et disposée sensiblement à l'horizontale.In one embodiment of the invention, said rod is general shape straight and arranged substantially horizontally.

Dans un mode de réalisation de l'invention, ladite tige est de forme générale annulaire et disposée sensiblement à l'horizontale.In one embodiment of the invention, said rod is generally annular shape and disposed substantially horizontally.

Avantageusement, le dispositif comprend une unité de commande de l'enroulement des câbles.Advantageously, the device comprises a unit of control of the winding of the cables.

L'invention concerne également un programme d'ordinateur ou d'automate comprenant des moyens de code programme pour mettre en oeuvre des étapes de déploiement du dispositif, lorsque ledit programmeThe invention also relates to a computer program or controller comprising program code means for setting implement steps of deployment of the device, when said program

fonctionne sur un ordinateur ou un automate.works on a computer or PLC.

Le corps mort oblige le câble de liaison reliant le navire et l'objet sous-marin à suivre un parcours déterminé entre le navire et ledit corps mort et évite un contact entre ledit câble de liaison et les moyens de propulsion du navire tels que des hélices.The dead body forces the connecting cable connecting the ship and the object submarine to follow a determined course between the ship and said body dead and avoids contact between said connecting cable and the means of propulsion of the ship such as propellers.

Le guide-câble permet au câble de liaison reliant le navire et l'objet sous-marin de coulisser par rapport au corps mort tout en obligeant ledit câble de liaison à passer près dudit corps mort.The cable guide allows the connecting cable connecting the vessel and the underwater object to slide relative to the dead body while forcing said connecting cable to pass near said dead body.

La présence de deux câbles de support du corps mort permet, lorsque leurs points d'attache sur le bateau sont convenablement écartés, de maintenir le corps mort dans une position déterminée par rapport au bateau et d'éviter un emmêlement des câbles de support et du câble de liaison. Le guide- câble associé au corps mort permet au câble de liaison de coulisser par rapport audit corps mort et donc de pouvoir être déroulé et enroulé à partir du bateau sur lequel est prévu en général un treuil à cet effet. L'organe de liaison transversal se trouve dans un plan généralement horizontal et maintient l'écartement des câbles de support.The presence of two support cables of the dead body allows, when their attachment points on the boat are properly removed, maintain the dead body in a certain position relative to the boat and avoid entanglement of the support cables and the connecting cable. The cable guide associated with the dead body allows the connecting cable to slide by report to the dead body and therefore to be unwound and rolled up from the boat on which is usually provided a winch for this purpose. The liaison body transversal is in a generally horizontal plane and maintains the spacing of the support cables.

Quelques modes de réalisation de l'invention sont illustrés par les dessins annexés :

  • la figure 1 est une vue en perspective d'une partie arrière d'un bateau de surface selon un aspect de l'invention;
  • la figure 2 est une vue en perspective d'un corps mort;
  • la figure 3 est une vue de dessus en élévation de la partie arrière du bateau de la figure 1;
  • les figures 4 et 5 sont des vues en perspective de la partie arrière du bateau au cours d'étapes opérationnelles;
  • la figure 6 est une vue arrière en élévation du bateau de la figure 1; et
  • la figure 7 est une vue en perspective de la partie arrière d'un bateau selon un autre aspect de l'invention.
Some embodiments of the invention are illustrated by the accompanying drawings:
  • Figure 1 is a perspective view of a rear portion of a surface boat according to one aspect of the invention;
  • Figure 2 is a perspective view of a dead body;
  • Figure 3 is a top view in elevation of the rear portion of the boat of Figure 1;
  • Figures 4 and 5 are perspective views of the rear portion of the boat during operational steps;
  • Figure 6 is a rear elevational view of the boat of Figure 1; and
  • Figure 7 is a perspective view of the rear portion of a boat according to another aspect of the invention.

Comme on peut le voir sur les figures 1 et 3 à 6, un bateau de surface référencé 1 dans son ensemble et dont seule la partie arrière est visible, est pourvu d'un pont 2 et d'un système de propulsion comprenant deux hélices 3 et 4.As can be seen in Figures 1 and 3 to 6, a boat from surface referenced 1 as a whole and of which only the rear part is visible, is provided with a bridge 2 and a propulsion system comprising two propellers 3 and 4.

Un câble de liaison 5 du type destiné à assurer une liaison de puissance et/ou de communication entre le bateau 1 et un objet sous-marin 6, est enroulé autour d'un treuil 7 disposé sur le pont 2. L'objet sous-marin 6 peut être, par exemple, un submersible de chasse aux mines ou d'exploration. A l'arrière et au milieu de la largeur du pont 2, sont disposés un tensionneur 8 et une poulie de renvoi alignée avec le treuil 7 et aptes à recevoir le câble de liaison 5. La poulie de renvoi 9 est disposée en porte-à-faux vers l'arrière.A connecting cable 5 of the type intended to provide a connection of power and / or communication between the boat 1 and an underwater object 6, is wrapped around a winch 7 disposed on the deck 2. The underwater object 6 can be, for example, a mine hunting submersible or exploration. At the back and in the middle of the width of the bridge 2, are arranged a tensioner 8 and a return pulley aligned with the winch 7 and able to receive the connecting cable 5. The deflection pulley 9 is arranged cantilevered rearward.

Trois treuils sont également disposés à l'arrière du pont 2, un treuil latéral gauche 10, un treuil central 11 et un treuil latéral droit 12. Sur ces treuils sont enroulés respectivement des câbles de support 13, 14 et 15. Les extrémités libres des câbles 13, 14 et 15 sont attachées à un corps mort 16 qui sera décrit plus en détail en référence à la figure 2. Le treuil central 11 est disposé à proximité immédiate de la poulie de renvoi 9, par exemple légèrement en dessous et en avant de ladite poulie de renvoi 9. Une pluralité de tiges 17 à 20, droites et disposées dans un plan transversal au bateau, relient ensemble les câbles 13 à 15.Three winches are also located at the back of Deck 2, a left side winch 10, a central winch 11 and a right lateral winch 12. On these winches are wound respectively support cables 13, 14 and 15. The free ends of the cables 13, 14 and 15 are attached to a dead body 16 which will be described in more detail with reference to FIG. 2. The central winch 11 is disposed in the immediate vicinity of the pulley 9, for example slightly below and in front of said idler pulley. plurality of rods 17 to 20, straight and arranged in a plane transverse to the boat, connect cables 13 to 15 together.

Le corps mort 16, illustré plus en détail sur la figure 2, est d'une masse de l'ordre d'une ou plusieurs centaines de kilos et peut être réalisé avec une forme hydrodynamique pour éviter une déperdition d'énergie importante lors du déplacement du bateau, le corps mort 16 étant immergé. Les câbles de support 13 à 15 sont reliés et fixés respectivement dans des trous d'attache traversant 21 à 23 du corps mort 16. Le trou d'attache 21 est disposé sur le côté gauche du corps mort 16, le trou d'attache 22 est disposé au centre et le trou d'attache 23 est disposé sur le côté droit, dans le sens d'avancement du bateau.The dead body 16, illustrated in greater detail in FIG. 2, is of a mass of the order of one or several hundred kilos and can be realized with a hydrodynamic shape to avoid energy loss important when moving the boat, the dead body 16 being immersed. The support cables 13 to 15 are connected and fixed respectively in anchoring holes 21 through 23 of the dead body 16. The fastening hole 21 is arranged on the left side of the dead body 16, the fastening hole 22 is arranged in the center and the attachment hole 23 is arranged on the right side, in the direction progress of the boat.

Un guide-câble 24 est associé au corps mort 16 en position centrale à l'arrière du trou d'attache 22. Le guide-câble 24 est de forme annulaire et comprend deux éléments 25 et 26 formant chacun la moitié du guide-câble 24 selon un plan de coupe passant par l'axe dudit guide-câble. L'élément 26 est fixé au corps mort 16 et l'élément 25 est articulé sur le corps mort 16 ou sur l'élément 26 pour permettre l'ouverture du guide-câble, qui est illustré sur la figure 2 en position ouverte. Un perçage axial 27 traverse le guide-câble 24 et présente une forme évasée à ses deux extrémités. Le câble de liaison 5 est prévu pour être disposé dans le passage 27 et pouvoir coulisser dedans sans risque de détérioration grâce à sa forme évasée à son extrémité supérieure et à son extrémité inférieure.A cable guide 24 is associated with the dead body 16 in position central to the back of the fastening hole 22. The cable guide 24 is shaped annular and comprises two elements 25 and 26 each forming half of the cable guide 24 according to a section plane passing through the axis of said cable guide. The element 26 is fixed to the dead body 16 and the element 25 is articulated on the dead body 16 or on the element 26 to allow the opening of the cable guide, which is illustrated in Figure 2 in the open position. Axial drilling 27 through the cable guide 24 and has a flared shape at its two ends. The connecting cable 5 is intended to be arranged in the passage 27 and be able to slide in without risk of deterioration its flared shape at its upper end and its lower end.

Le treuil 7, le tensionneur 8 et les treuils 10, 11 et 12 sont chacun reliés à une unité de commande, non représentée pour la simplicité du dessin, par liaison filaire ou hertzienne. L'unité de commande comprend un processeur, des moyens-mémoire et un programme de commande stocké dans les moyens-mémoire et aptes à être exécutés par le processeur. L'unité de commande peut être pourvue de moyens de commande manuelle du genre boutons, manettes, écran tactile, etc. L'unité de commande est capable de commander les différentes étapes de mise en oeuvre de l'objet sous-marin 6 et du dispositif de protection de câble. Les treuils 7 et 10 à 12 peuvent être de type électrique, hydraulique ou pneumatique.The winch 7, the tensioner 8 and the winches 10, 11 and 12 are each connected to a control unit, not shown for the sake of simplicity drawing, by wired or wireless link. The control unit includes a processor, memory means and a control program stored in the memory means and able to be executed by the processor. The control unit can be provided with manual control means like buttons, joysticks, touch screen, etc. The control unit is able to control the different stages of implementation of the object submarine 6 and the cable protection device. The winches 7 and 10 to 12 can be electric, hydraulic or pneumatic type.

Dans la position de stockage illustrée sur les figures 1 et 3, le câble de liaison 5 est presque entièrement enroulé sur le tambour du treuil 7. L'objet sous-marin 6 est disposé sur le pont 2 et y est fixé de façon amovible. Le corps mort 16 est remonté en position haute grâce au treuil central 11, les câbles latéraux 13 et 15 étant tendus entre les treuils respectifs 10 et 12 et le corps mort 16, en position presque horizontale. Le corps mort 16 se trouve en dessous et à proximité de la poulie de renvoi 9. Le corps mort 16 peut être bloqué par des moyens de verrouillage solidaires du bateau 2 et plus rigides qu'une liaison par câble.In the storage position illustrated in FIGS. 1 and 3, the connecting cable 5 is almost completely wound on the drum of the winch 7. The underwater object 6 is disposed on the deck 2 and is attached thereto removable. The dead body 16 is raised in the upper position thanks to the winch 11, the lateral cables 13 and 15 being stretched between the winches respective 10 and 12 and the dead body 16, in almost horizontal position. The dead body 16 is below and near the idler pulley 9. The dead body 16 can be blocked by locking means integral with the boat 2 and more rigid than a cable connection.

Pour préparer la mise à l'eau de l'objet sous-marin 6, on commence par dérouler légèrement le câble de liaison 5 du treuil 7 et on le fait passer dans le tensionneur 8, dans la poulie de liaison 9 et dans le guide-câble 24 solidaire du corps mort 16 en ouvrant sa partie articulée 25 comme illustré sur la figure 2. On referme ensuite la partie articulée 25.To prepare the launching of the submarine object 6, starts by unrolling slightly the connecting cable 5 of the winch 7 and it is passed through the tensioner 8, in the connecting pulley 9 and in the cable guide 24 integral with the dead body 16 by opening its hinged portion 25 as illustrated in FIG. 2. Then the articulated part 25 is closed again.

Les treuils 10 à 12 ainsi que le treuil 7 sont ensuite commandés pour dévirer leurs câbles respectifs, la charge du corps mort 16 étant supportée par le treuil central 11. Les câbles latéraux 13 et 15 sont maintenus à faible tension, juste suffisante pour éviter la prise de mou. Une fois l'immersion de travail atteinte par le corps mort 16, les treuils latéraux 10 et 12 sont commandés pour tendre les câbles latéraux 13 et 15 et reprendre le poids du corps mort 16. Le câble de liaison 5 est maintenu sous faible tension pour éviter la prise de mou. On remarquera que la vitesse de déroulement des câbles doit être adaptée à chaque instant de la procédure de mise à l'eau en raison de la géométrie de l'ensemble.The winches 10 to 12 and the winch 7 are then ordered to deviate their respective cables, the load of the dead body 16 being supported by the central winch 11. The side cables 13 and 15 are kept at low voltage, just enough to avoid slack. Once the working immersion reached by the dead body 16, the winches 10 and 12 are controlled to tension the lateral cables 13 and 15 and take back the weight of the dead body 16. The connecting cable 5 is maintained under low tension to avoid slackening. It will be noted that the cable unwinding speed must be adapted at each moment of the launching procedure due to the geometry of the set.

Comme on le voit sur la figure 4, lors de la descente du corps mort jusqu'à son immersion de travail, le câble de liaison 5 passant par le guide-câble 24 est attaché à son extrémité à l'objet sous-marin 6 qui reste sur le pont 2. Le câble de liaison 5 fait donc un aller entre la poulie de renvoi 9 et le guide-câble 24 et un retour entre le guide-câble 24 et l'objet sous-marin 6. L'unité de commande permet, grâce à son programme de commande, d'obtenir des vitesses de dévirage souhaitées.As seen in Figure 4, during the descent of the body until its working immersion, the connecting cable 5 passing through the cable guide 24 is attached at its end to the underwater object 6 which remains on the bridge 2. The connecting cable 5 makes a go between the pulley of 9 and the cable guide 24 and a return between the cable guide 24 and the object submarine 6. The control unit allows, thanks to its control, to obtain desired unwinding speeds.

Bien entendu, les longueurs des câbles latéraux 13 et 15 sont ajustées pour rester égales afin d'éviter de déséquilibrer le corps mort 16, notamment avec la vitesse de déplacement du bateau. Une fois le corps mort 16 immergé à sa profondeur de travail, l'objet sous-marin 6 est mis à l'eau à l'aide d'une grue non représentée et peut ensuite s'éloigner du bateau, comme illustré sur la figure 5. L'état déployé (corps mort 16 immergé) du dispositif de protection est bien visible sur la figure 6. Les différents câbles 5, 10 et 12 sont représentés comme étant parfaitement droits, ce qui ne sera pas forcément le cas en situation réelle. Le câble de liaison 5 est disposé derrière le câble de support 14 qu'il cache. Le câble de support 14 n'est donc pas visible sur la figure 6.Of course, the lengths of the lateral cables 13 and 15 are adjusted to remain equal in order to avoid unbalancing the dead body 16, especially with the speed of movement of the boat. Once the body dead 16 immersed at his working depth, the submarine object 6 is set to water using a crane not shown and can then move away from the boat, as shown in Figure 5. The deployed state (dead body 16 immersed) of the protective device is clearly visible in FIG. different cables 5, 10 and 12 are represented as being perfectly rights, which will not necessarily be the case in real situations. The cable of link 5 is arranged behind the support cable 14 that it hides. The cable of support 14 is therefore not visible in FIG.

Dans un plan transversal au bateau 1, se trouvent donc disposés les câbles 13, 14 et 15, les câbles 13 et 15 formant un trapèze dont la grande base est formée par le pont 2 du bateau 1 et dont la petite base est formée par le corps mort 16, ce trapèze étant symétrique par rapport au câble central 14. Les tiges 17 à 20, qui sont fixées à des hauteurs échelonnées sur les câbles 10 et 12, sont déployées parallèlement les unes aux autres sensiblement à l'horizontale. Les tiges 17 à 20 peuvent être formées par des tubes dont les extrémités sont pourvues d'anneaux, de façon à pouvoir coulisser le long des câbles 13 à 15. Un anneau central est également prévu pour pouvoir coulisser le long du câble central 14. L'écartement entre les tiges 17 à 20 est assuré par des filins d'espacement 28, 29, 30 et 31. Tous les filins d'espacement sont au nombre de deux, un de chaque côté du bateau. Les filins 28 sont fixés d'une part à l'arrière du bateau, par exemple sur le pont 2 et, d'autre part à une extrémité de la tige 17. Les filins 29 sont disposés à une extrémité sur la tige 17 et à l'autre extrémité sur la tige 18. De même, les filins 30 sont fixés à une extrémité sur la tige 18 et à l'autre extrémité sur la tige 19. De même, les filins 31 sont fixés à une extrémité sur la tige 19 et à l'autre extrémité sur la tige 20.In a plane transverse to the boat 1, are thus disposed the cables 13, 14 and 15, the cables 13 and 15 forming a trapezium whose great base is formed by the deck 2 of the boat 1 and whose small base is formed by the dead body 16, this trapezium being symmetrical with respect to the cable central 14. The rods 17 to 20, which are attached to heights staggered on the cables 10 and 12 are deployed parallel to one another substantially horizontally. The rods 17 to 20 can be formed by tubes whose ends are provided with rings so as to be able to slide along cables 13 to 15. A central ring is also provided to be able to slide along the central cable 14. The spacing between rods 17 to 20 is provided by spacing ropes 28, 29, 30 and 31. All there are two spacers, one on each side of the boat. The ropes 28 are fixed firstly to the rear of the boat, for example on the bridge 2 and on the other hand at one end of the rod 17. The ropes 29 are arranged at one end on the rod 17 and at the other end on the rod 18. Similarly, the ropes 30 are attached at one end to the rod 18 and at the other end on the rod 19. Similarly, the ropes 31 are attached to one end on the rod 19 and at the other end on the rod 20.

De façon optionnelle, les filins 28 à 31 peuvent passer à l'intérieur des tiges respectives ou coulisser dans des anneaux pour permettre une adaptation de la géométrie des filins et des tiges en fonction de la profondeur souhaitée du corps mort 16.Optionally, the lines 28 to 31 can move to inside the respective rods or slide in rings for allow an adaptation of the geometry of the ropes and rods according the desired depth of the dead body 16.

L'ensemble formé par les câbles 13, 14 et 15, le corps mort 16, les tubes 17 à 20 et les filins d'espacement 28 à 31, permet de protéger le câble de liaison 5 en formant entre lui-même et les hélices 3 et 4 un rideau interdisant au câble de liaison 5 de venir à proximité desdites hélices 3 et 4, même dans le cas où il serait par inadvertance ou par incident relativement détendu.The assembly formed by the cables 13, 14 and 15, the dead body 16, the tubes 17 to 20 and the spacer cables 28 to 31, protects the cable link 5 forming between itself and the propellers 3 and 4 a curtain preventing the connecting cable 5 from coming close to said propellers 3 and 4, even in the event that it would inadvertently or incidentally relatively relaxed.

La récupération du véhicule sous-marin 6 et du dispositif de protection s'effectue comme suit. On ramène le véhicule sous-marin 6 à la surface par ses propres moyens. On le remonte à bord du bateau au moyen de la grue non représentée et on remonte le corps mort 16 essentiellement au moyen du treuil central 11 qui met le câble central 14 en tension, les câbles latéraux 13 et 15 étant également rembobinés par les treuils 10 et 12, mais sans tension ou avec une tension faible. Simultanément, le treuil 7 rembobine le câble de liaison 5 pour lui éviter de prendre excessivement du mou. Lors de la remontée du corps mort 16, les tiges de protection 17 à 20 viennent reposer sur ledit corps mort 16 au fur et à mesure de la remontée et se trouvent disposées en fin de mouvement de remontée à l'arrière du bateau 1 au-dessus ou en contact avec le corps mort 16. Les filins 28 à 31, relativement souples, se replient sans occuper un espace important. Ils sont décalés transversalement les uns par rapport aux autres, ce qui réduit le risque de les voir s'emmêler. Ils ne sont donc pas visibles sur les figures 1 et 3.The recovery of the submarine vehicle 6 and the protection is as follows. We bring back the underwater vehicle 6 to the surface by its own means. We go back on board the boat by means of of the crane not shown and we go back the dead body 16 basically by means of the central winch 11 which puts the central cable 14 in tension, the side cables 13 and 15 being also rewound by the winches 10 and 12, but without voltage or with low voltage. Simultaneously, the winch 7 rewinds the connecting cable 5 to prevent it from taking excessively slack. When raising the dead body 16, the protection rods 17 to 20 come to rest on the dead body 16 as and when the up and are arranged at the end of the uphill movement at the back of the vessel 1 above or in contact with the dead body. Ropes 28 to 31, relatively flexible, fold up without occupying a space important. They are offset transversely with respect to others, which reduces the risk of them becoming entangled. They are not visible in Figures 1 and 3.

Sur la figure 7, est illustrée une variante dans laquelle le dispositif de protection comprend un corps mort 16 maintenu par deux câbles porteurs 32 et 33 espacés l'un de l'autre d'une distance par exemple de l'ordre d'un mètre et disposés vers le milieu du bateau 1. Les câbles 32 et 33 peuvent venir s'enrouler sur un treuil unique à double tambour référencé 34 ou, de façon non représentée, sur deux treuils distincts. Les tiges qui maintiennent l'écartement entre les câbles 32 et 33 sont ici de forme annulaire et portent la référence 35.FIG. 7 illustrates a variant in which the protection device comprises a dead body 16 held by two carrying cables 32 and 33 spaced from each other by a distance for example of the order of one meter and arranged towards the middle of the ship 1. The cables 32 and 33 can be wound on a single double drum winch referenced 34 or, not shown, on two separate winches. The rods that maintain the spacing between cables 32 and 33 are here from annular shape and bear the reference 35.

Les tiges annulaires 35 sont reliées les unes aux autres par des filins 36. On prévoit au minimum deux filins 36 entre deux tiges annulaires 35 voisines, mais de préférence trois ou plus pour un meilleur maintien en position. Les tiges annulaires 35 sont aptes à coulisser, par exemple au moyen d'anneaux, par rapport aux câbles porteurs 32 et 33, et se déploient lors de l'immersion du corps mort 16. Les tiges annulaires 35 viennent reposer sur le corps mort 16 lors de sa remontée. Le câble de liaison 5 est donc guidé entre la poulie de renvoi 9 et le corps mort 16 par la pluralité de tiges annulaires 35, les tiges annulaires 35 ayant un espacement le long des câbles porteurs 32 et 33, c'est-à-dire sensiblement selon un axe vertical, déterminé par les filins d'espacement 36. La tige annulaire 35 supérieure sera reliée au bateau 1, par exemple au pont 2, par un filin non représenté.The annular rods 35 are connected to each other by means of strands 36. At least two strands 36 are provided between two stems annular 35 neighbors, but preferably three or more for a better holding in position. The annular rods 35 are able to slide, by example by means of rings, with respect to the carrying cables 32 and 33, and unfold during the immersion of the dead body 16. The annular rods 35 come to rest on the dead body 16 during its ascent. The cable of connection 5 is thus guided between the pulley 9 and the dead body 16 by the plurality of annular rods 35, the annular rods 35 having a spacing along the carrier cables 32 and 33, that is substantially along a vertical axis, determined by the spacing strings 36. The rod annular 35 upper will be connected to the boat 1, for example to the bridge 2, by a rope not shown.

L'invention permet de guider le câble de liaison en dessous des hélices et d'interposer un rideau déployé entre ledit câble de liaison et les hélices ou plus généralement les moyens de propulsion, pour empêcher un éventuel déplacement du câble de liaison vers ces moyens de propulsion. Le corps mort lourd équipé d'un guide-câble verrouillable est immergé par l'arrière du bateau en dessous du niveau des moyens de propulsion. Au moins deux câbles auxiliaires sont attachés de part et d'autre du corps mort et sur les côtés de la plage arrière avec pour fonction d'empêcher le corps mort de tourner et d'assurer le maintien des tiges de protection qui forment un rideau entre le câble de liaison et les moyens de propulsion. Les treuils de manoeuvre des câbles de support permettent de baisser ou de remonter le corps mort et plus généralement le dispositif de protection entre sa position de stockage hors d'eau et sa position opérationnelle immergée.The invention makes it possible to guide the connecting cable below the propellers and interpose a curtain deployed between said connecting cable and the propellers or, more generally, the means of propulsion, to prevent a possible displacement of the connecting cable to these propulsion means. The heavy dead body equipped with a lockable cable guide is immersed by the rear of the boat below the level of the means of propulsion. At minus two auxiliary cables are attached on both sides of the dead body and on the sides of the back shelf with the function of preventing the body death to turn and maintain the protective rods that form a curtain between the connecting cable and the propulsion means. Winches of maneuvering support cables allow to lower or to go up the dead body and more generally the protection device between his storage position out of water and its operational position submerged.

Le dispositif de protection est facilement déployable et repliable. Il présente un faible encombrement à l'état replié dans la mesure où les tiges de protection, qu'elles soient droites ou annulaires, peuvent s'empiler les unes sur les autres. La profondeur d'immersion du corps mort peut être réglée de façon précise grâce aux treuils.The protection device is easily deployable and foldable. It has a small footprint in the folded state in the measure where the protective rods, whether straight or annular, can stack on top of each other. The depth of immersion of the dead body can be adjusted precisely thanks to the winches.

Le temps de mise en oeuvre des dispositifs de protection est très bref et l'énergie motrice lors de l'immersion est assurée par la force de gravité sur le corps mort et s'effectue donc sans consommation d'énergie en provenance du bateau.The time of implementation of the protective devices is very brief and the driving energy during the immersion is ensured by the force of gravity on the dead body and is therefore done without energy consumption from the boat.

La géométrie du dispositif de protection est adaptable d'un bateau à l'autre en jouant sur la longueur des tiges de protection lorsqu'elles sont droites et est relativement universelle dans le cas de tiges de protection annulaires.The geometry of the protective device is adaptable to a boat to another playing on the length of the protective rods when straight and relatively universal in the case of stems annular protection.

A titre d'exemple, on peut prévoir qu'à l'état replié, le dispositif de protection est un encombrement en hauteur de l'ordre d'un mètre. La durée de déploiement pourra être de l'ordre de 2 minutes.By way of example, provision can be made for the device in the folded state protection is a height requirement of the order of one meter. The deployment time may be of the order of 2 minutes.

Claims (11)

  1. Protection device for a cable connecting a ship (1) on the surface and a submarine object (6), characterized in that it comprises a mooring (16), a cable-guide (24) associated with the mooring, at least two cables supporting the mooring, and at least one linking member linking the support cables and mounted substantially transversely to the support cables.
  2. Device according to Claim 1, characterized in that the cables supporting the mooring are placed on either side of the cable connecting the ship and the submarine object.
  3. Device according to Claim 1 or 2, characterized in that the cables supporting the mooring are placed substantially transversely to the ship.
  4. Device according to any one of the preceding claims, characterized in that it comprises at least three cables (13, 14, 15) supporting the mooring.
  5. Device according to Claim 4, characterized in that one cable is in a central position and the other cables are in side positions, substantially in a transverse plane to the ship.
  6. Device according to any one of the preceding claims, characterized in that it comprises a cable winding means.
  7. Device according to any one of the preceding claims, characterized in that the linking member comprises at least one rod connecting at least two support cables.
  8. Device according to Claim 7, characterized in that the said rod (17) is of generally straight shape and placed substantially at the horizontal.
  9. Device according to Claim 7, characterized in that the said rod (35) is of generally circular shape and placed substantially at the horizontal.
  10. Device according to any one of the preceding claims, characterized in that it comprises a cable winding control unit.
  11. Device according to Claim 10, characterized in that the control unit comprises a computer program or programmable controller comprising program code means for implementing the stages of deployment of the device when the said program runs on a computer or a programmable controller.
EP01401559A 2000-06-21 2001-06-14 Protection device for a tether cable of a submerged object Expired - Lifetime EP1167178B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0007896 2000-06-21
FR0007896A FR2810627B1 (en) 2000-06-21 2000-06-21 DEVICE FOR PROTECTING A BINDING CABLE OF AN UNDERWATER OBJECT

Publications (2)

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EP1167178A1 EP1167178A1 (en) 2002-01-02
EP1167178B1 true EP1167178B1 (en) 2005-08-31

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EP01401559A Expired - Lifetime EP1167178B1 (en) 2000-06-21 2001-06-14 Protection device for a tether cable of a submerged object

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EP (1) EP1167178B1 (en)
AT (1) ATE303289T1 (en)
DE (1) DE60113008T2 (en)
DK (1) DK1167178T3 (en)
FR (1) FR2810627B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR908304A (en) * 1944-12-19 1946-04-05 Minesweepers
DE921781C (en) * 1952-01-16 1954-12-30 Hochseefischerei Nordstern A G Height spreader for fishing nets
US4184209A (en) * 1952-10-10 1980-01-15 Crist Ralph P Towed noisemaker
FR2296562A1 (en) * 1975-01-06 1976-07-30 Inst Francais Du Petrole Intermediate floats to support submerged objects - typically transmitters for seismic surveys with floats towed by a ship
NO158359C (en) * 1986-02-14 1988-08-24 Geco As ANGLE JOINT FOR SEISMIC CABLES TOWED BY A VESSEL.

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Publication number Publication date
FR2810627A1 (en) 2001-12-28
DE60113008T2 (en) 2006-06-29
ATE303289T1 (en) 2005-09-15
DE60113008D1 (en) 2005-10-06
EP1167178A1 (en) 2002-01-02
DK1167178T3 (en) 2006-01-09
FR2810627B1 (en) 2002-08-30

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