EP0254619B1 - Procedure and apparatus to assist in the treatment of a floating load - Google Patents

Procedure and apparatus to assist in the treatment of a floating load Download PDF

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Publication number
EP0254619B1
EP0254619B1 EP19870401539 EP87401539A EP0254619B1 EP 0254619 B1 EP0254619 B1 EP 0254619B1 EP 19870401539 EP19870401539 EP 19870401539 EP 87401539 A EP87401539 A EP 87401539A EP 0254619 B1 EP0254619 B1 EP 0254619B1
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Prior art keywords
arms
ship
line
floating
arm
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EP19870401539
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German (de)
French (fr)
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EP0254619A1 (en
Inventor
Armand Raguenes
Michel Baltazard
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Direction General pour lArmement DGA
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Direction General pour lArmement DGA
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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 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo

Definitions

  • the present invention relates to the technical sector of handling and lifting of loads located on the surface of the water, called floating loads in the remainder of the text, from a ship or a floating platform.
  • Patent FR 2 152 886 describes a device for lifting large buoys on a ship, which may consist of a cable forming a loop, one end of which is fixed to the deck and the other end of which is operated by an associated winch. to a lifting mast swiveling in a horizontal plane.
  • the cable loop encloses the buoy until it engages on the peripheral hooks of the buoy.
  • the disadvantage of this device then lies in the fact that it requires, before the final lifting stage, to firmly clamp the buoy along the ship: it cannot be used in the handling of floating loads having an external structure relatively fragile.
  • patent FR 2 073 192 shows a device for the recovery of a torpedo, comprising an envelope, playing the role of basket, of adapted and profiled shape, in particular in its front part, to be maneuvered so as to come to grip the torpedo to be raised.
  • This kind of device has of course the disadvantage of not being versatile.
  • the present invention aims to remedy the drawbacks mentioned above, by proposing a device for handling and lifting various floating loads having different external configurations, without constraining the mechanical structures of these loads to forces which would be harmful to them, while allowing these maneuvers to be carried out in a simple manner and without risks for operators.
  • the present invention therefore relates to a method of assisting in the handling of a floating load, in particular from a ship, characterized in that it consists, between a known handling step comprising towing and / or positioning relative to the load with respect to the ship, and a known handling step comprising lifting the load on the ship, in a step of positioning and hooking the floating load, provided with a hooking member in its part upper, relative to a halyard stretched over the surface of the water between the ends of at least two arms articulated relative to the ship. After attaching the load for lifting it, the halyard can be separated from the ends of the arms between which it was stretched.
  • the invention also relates to a device for assisting in the handling of a floating load for the implementation of the above method at the rear of a ship equipped with towing and lifting means, characterized in that that it comprises two arms, located on either side of the towing and lifting means, each of these arms having one end mounted on an articulation member fixed to the rear of the ship, and one end equipped with a float and a means for securing a halyard, the halyard being stretched between the floating ends of each of these arms.
  • Another object of the invention is a device for assisting in the handling of a floating load for the implementation of the above method on the side of a ship equipped with a lifting means, characterized in that '' It comprises at least two arms, each of these arms having one end mounted on a common articulation member, fixed laterally with respect to the hull, and one end fitted with a float and with a means for securing a halyard, the halyard being stretched between the floating ends of each of the arms, preferably mounted in a loop at the end of the lifting means.
  • the method and the device for assisting in the handling of floating loads make it possible, using robust mechanical systems of simple construction, to safely tension a halyard between two floats situated at the ends of articulated poles, which can also be light and flexible for hooking a floating load, itself provided with a hooking member, without requiring the presence of a carrying cable, then, after having released the recovery points of the halyard, rewind it by a lifting means before the actual lifting step, for example by a handling head of known type.
  • the recovery from the rear of the building 1 is suitable for floating loads such as vehicles equipped with a towing cable which makes it possible to control the position between the vehicle and the platform 11.
  • the device according to the invention consists of a halyard 3 wound in duplicate on the winch drum fitted to the transfer system or handling head 5 which is used in particular for lifting the load.
  • Two arms for example flexible and light poles 4, held by supports orientable in the horizontal plane, allow the adjustment of the intercept, that is to say the spacing of their ends, the halyard being taut on the surface of the water by the flexibility of the poles.
  • Each wet end has a release device 41, for example a hook operated by a rope 41 a, fixed along or inside the pole, and terminated by a handle which releases the halyard and a capacity 42 which ensures the flotation of the arm at launch.
  • the poles can be made for example of glass fibers.
  • This variant of the handling aid device is implemented as follows.
  • the handling head 5 In a first phase the handling head 5 is brought to the rear and to the axis of the building.
  • the halyard emerging from the winch, in loop form, is mounted on the ends of the poles which are then stored on the deck.
  • the sonar 2 is brought to the rear of the building using the towing cable 7.
  • the handling head is brought into position for recovery, cantilevered at the rear of the building .
  • the arms or poles 4 are put in the water and locked on the adjustable supports 43 the halyard 3 is stretched between the ends of the poles.
  • the floats 42 rest on the surface of the water and transmit the swell movements to the poles articulated around their axis of rotation 44, the flexibility of the poles ensuring the tension of the halyard.
  • the sonar 2 is pulled on the rear so that the hook 21 catches the halyard 3 stretched between the poles, and which is then secured to the hook, for example by closing a latch.
  • the halyard 3 is released from the pole ends 4 by a release system 41.
  • the winch of the handling head 5 raises the sonar 2 and immobilizes it on the defenses.
  • the poles 4 are raised, for example manually, using ropes 61 previously attached to these poles, and are stored on the deck.
  • the handling head 5 is brought back to the deck.
  • the winch releases the sonar 2 which is placed on a handling trolley.
  • the halyard 3 is released from the hook 21 and the towing cable 7 is released from the sonar 2.
  • the lightness of the poles allows their manual manipulation, but my lifting means with motorization can be used to maneuver arms which would be more rigid and heavier.
  • Figures 3 and 4 show the handling assistance device applied to the recovery of a vehicle by the side of a stationary boat or platform, when it cannot take place aft of the building (risk of knocks on the rear, proximity of the propellers, and 7) this process allows recovery from the side and is particularly suitable for lifting wire-guided loads.
  • the device has two holding arms 4a and 4b, articulated around an axis 44 integral with the shell 1 which can move simultaneously in a vertical plane.
  • the arm closest to the hull 4a can only move in a plane parallel to the axis of the building; the other 4b can be moved away from the previous one thanks to a jack 43 thus ensuring the tension of a halyard strand 3 coming out of the crane head 8 and passing through the wet ends of the two arms 4a and 4b.
  • the latter also comprise a release device which releases the halyard, and a capacity 42 which ensures the flotation of the arm when it is launched.
  • a first phase the crane 8 is brought so as to pass, manually, on the bridge, the halyard 3 on the ends of the holding arms.
  • the arms, or poles, 4a and 4b are released from their hull attachments and unfolded in the water, one deviating from the other thanks to the jack 43 provided for this purpose.
  • Crane 8 descends simultaneously.
  • the two arms rest on the water in contact with their floats 42.
  • the halyard strand is then stretched horizontally over the surface of the water, due to the flexibility of the arms.
  • the guided vehicle 2 is caused to pass between the two floats 42 so that the hook 21 which it carries in the upper part comes to catch the horizontal halyard strand 3 which remains trapped. If the fish guide wire is broken, the vessel should move slowly to bring the strand into contact with the inert fish hook.
  • a tension can be exerted on the two oblique strands of halyard which are released from the ends 41 of arm, or the hooks can be operated by a rope 41 a, and the sonar is then reassembled, plated and maintained against the defenses.
  • the assembly is then reassembled and after rotation the crane 8 deposits the sonar in the cradle of a carriage mounted on rails.
  • the two arms are then reassembled using a lifting means, possibly manually, and moored along the hull 1 on fixing supports 13.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Jib Cranes (AREA)

Description

La présente invention concerne le secteur technique de la manutention et du relevage de charges situées à la surface de l'eau, appellées charges flottantes dans la suite du texte, à partir d'un navire ou d'une plate-forme flottante.The present invention relates to the technical sector of handling and lifting of loads located on the surface of the water, called floating loads in the remainder of the text, from a ship or a floating platform.

On sait que le relevage de charges ou d'objets lourds et volumineux nécessite des manoeuvres difficiles et dangereuses, en particulier en cas de pilonnage par mer forte, et surtout lorsque la charge flottante n'est pas équipée elle-même d'un câble porteur pouvant être utilisé pour faciliter sa manutention : c'est le cas par exemple de certaines bouées ou d'engins filoguidés et autopropulsés. On ne peut alors tenter de récupérer ces charges flottantes qu'à l'aide de palans et de systèmes de cordages difficiles à mettre en oeuvre. La manoeuvre d'un câble d'aide à la manutention par l'intermédiaire de perches et de crochets effectuée manuellement n'est donc possible que pour des mouvements du navire de faible amplitude et que dans le cas où la différence de hauteur entre le plan de travail sur le navire et la surface de l'eau est relativement limitée. Il en est de même des systèmes plus complexes mettant en oeuvre des cordages actionnés par des palans.It is known that lifting heavy or bulky loads or objects requires difficult and dangerous maneuvers, in particular in the event of shelling in heavy seas, and especially when the floating load is not itself equipped with a carrying cable. can be used to facilitate its handling: this is the case for example of certain buoys or of guided and self-propelled machines. We can then attempt to recover these floating charges only with hoists and rope systems that are difficult to implement. Maneuvering of a handling aid cable by means of poles and hooks carried out manually is therefore only possible for movements of the vessel of small amplitude and only in the case where the difference in height between the plane working on the ship and the water surface is relatively limited. It is the same for more complex systems using ropes actuated by hoists.

Le brevet FR 2 152 886 décrit un dispositif pour le relevage de bouées de grandes dimensions sur un navire, qui peut être constitué par un câble formant boucle dont une extrémité est fixée sur le pont et dont l'autre extrémité est manoeuvrée par un treuil associé à un mat de relevage pivotant dans un plan horizontal. La boucle du câble enserre la bouée jusqu'à venir en prise sur des crochets périphériques de la bouée. L'inconvénient de ce dispositif réside alors dans le fait qu'il nécessite, avant l'étape finale de relevage, de plaquer fermement la bouée le long du navire : il ne peut pas être utilisé dans la manutention de charges flottantes présentant une structure extérieure relativement fragile.Patent FR 2 152 886 describes a device for lifting large buoys on a ship, which may consist of a cable forming a loop, one end of which is fixed to the deck and the other end of which is operated by an associated winch. to a lifting mast swiveling in a horizontal plane. The cable loop encloses the buoy until it engages on the peripheral hooks of the buoy. The disadvantage of this device then lies in the fact that it requires, before the final lifting stage, to firmly clamp the buoy along the ship: it cannot be used in the handling of floating loads having an external structure relatively fragile.

Par ailleurs, on connaît aussi des dispositifs spécifiques pour la récupération d'un type déterminé de charges flottantes, à structure fragile, telles que des torpilles par exemple. Ainsi, le brevet FR 2 073 192 montre un dispositif pour la récupération d'une torpille, comprenant une enveloppe, jouant le rôle de nasse, de forme adaptée et profilée, notamment dans sa partie avant, pour être manoeuvrée de manière à venir enserrer la torpille à relever. Ce genre de dispositif présente bien sûr l'inconvénient de ne pas être polyvalent.Furthermore, specific devices are also known for the recovery of a determined type of floating charges, with a fragile structure, such as torpedoes for example. Thus, patent FR 2 073 192 shows a device for the recovery of a torpedo, comprising an envelope, playing the role of basket, of adapted and profiled shape, in particular in its front part, to be maneuvered so as to come to grip the torpedo to be raised. This kind of device has of course the disadvantage of not being versatile.

Aussi, la présente invention vise à remédier aux inconvénients cités plus haut, en proposant un dispositif pour la manutention et le relevage de diverses charges flottantes présentant des configurations extérieures différentes, sans contraindre les structures mécaniques de ces charges à des efforts qui leur seraient préjudiciables, tout en permettant d'effectuer ces manoeuvres de façon simple et sans risques pour les opérateurs.Also, the present invention aims to remedy the drawbacks mentioned above, by proposing a device for handling and lifting various floating loads having different external configurations, without constraining the mechanical structures of these loads to forces which would be harmful to them, while allowing these maneuvers to be carried out in a simple manner and without risks for operators.

La présente invention a donc pour objet un procédé d'assistance à la manutention d'une charge flottante notamment à partir d'un navire, caractérisé en ce qu'il consiste, entre une étape connue de manutention comprenant le remorquage et/ou le positionnement relatif de la charge par rapport au navire, et une étape connue de manutention comprenant le relevage de la charge sur le navire, en une étape de positionnement et d'accrochage de la charge flottante, munie d'un organe d'accrochage dans sa partie supérieure, par rapport à une drisse tendue à la surface de l'eau entre les extrémités d'au moins deux bras articulés par rapport au navire. Après accrochage de la charge en vue de son relevage, on peut désolidariser la drisse par rapport aux extrémités des bras entre lesquelles elle était tendue.The present invention therefore relates to a method of assisting in the handling of a floating load, in particular from a ship, characterized in that it consists, between a known handling step comprising towing and / or positioning relative to the load with respect to the ship, and a known handling step comprising lifting the load on the ship, in a step of positioning and hooking the floating load, provided with a hooking member in its part upper, relative to a halyard stretched over the surface of the water between the ends of at least two arms articulated relative to the ship. After attaching the load for lifting it, the halyard can be separated from the ends of the arms between which it was stretched.

L'invention a également pour objet un dispositif d'assistance à la manutention d'une charge flottante pour la mise en oeuvre du procédé ci-dessus à l'arrière d'un navière équipé de moyens de remorquage et de relevage, caractérisé en ce qu'il comprend deux bras, situés de part et d'autre des moyens de remorquage et de relevage, chacun de ces bras présentant une extrémité montée sur un organe d'articulation fixé à l'arrière du navire, et une extrémité équipée d'un flotteur et d'un moyen de solidarisation d'une drisse, la drisse étant tendue entre les extrémités flottantes de chacun de ces bras.The invention also relates to a device for assisting in the handling of a floating load for the implementation of the above method at the rear of a ship equipped with towing and lifting means, characterized in that that it comprises two arms, located on either side of the towing and lifting means, each of these arms having one end mounted on an articulation member fixed to the rear of the ship, and one end equipped with a float and a means for securing a halyard, the halyard being stretched between the floating ends of each of these arms.

Un autre objet de l'invention est un dispositif d'assistance à la manutention d'une charge flottante pour la mise en oeuvre du procédé ci-dessus sur le côté d'un navire équipé d'un moyen de relevage, caractérisé en ce qu'il comprend au moins deux bras, chacun de ces bras présentant une extrémité montée sur un organe d'articulation commun, fixé latéralement par rapport à la coque, et une extrémité équipée d'un flotteur et d'un moyen de solidarisation d'une drisse, la drisse étant tendue entre les extrémités flottantes de chacun des bras, de préférence montée en boucle à l'extrémité du moyen de relevage.Another object of the invention is a device for assisting in the handling of a floating load for the implementation of the above method on the side of a ship equipped with a lifting means, characterized in that '' It comprises at least two arms, each of these arms having one end mounted on a common articulation member, fixed laterally with respect to the hull, and one end fitted with a float and with a means for securing a halyard, the halyard being stretched between the floating ends of each of the arms, preferably mounted in a loop at the end of the lifting means.

Ainsi, le procédé et le dispositif d'assistance à la manutention de charges flottantes selon l'invention permettent, à l'aide de systèmes mécaniques robustes de construction simple, de tendre sans risques une drisse entre deux flotteurs situés aux extrémités de perches articulées,qui peuvent par ailleurs être légères et flexibles pour crocheter une charge flottante, munie elle-même d'un organe d'accrochage, sans nécessiter la présence d'un câble porteur, puis, après avoir largué les points de reprise de la drisse, de rebobiner celle-ci par un moyen de relevage avant l'étape de relevage proprement dite, par exemple par une tête de manutention de type connue.Thus, the method and the device for assisting in the handling of floating loads according to the invention make it possible, using robust mechanical systems of simple construction, to safely tension a halyard between two floats situated at the ends of articulated poles, which can also be light and flexible for hooking a floating load, itself provided with a hooking member, without requiring the presence of a carrying cable, then, after having released the recovery points of the halyard, rewind it by a lifting means before the actual lifting step, for example by a handling head of known type.

D'autres avantages apparaîtront à la lecture ci-après de la description, non limitative, de modes de réalisations pour la mise en oeuvre du procédé d'assistance à la manutention selon l'invention, en référence au dessin sur lequel :

  • - la figure 1 est une vue schématique en élévation d'un dispositif selon l'invention placé à l'arrière d'un navire, tandis que
  • - la figure 2 est une vue de dessus de cette même variante,
  • - la figure 3 est une vue schématique en élévation d'un dispositif selon l'invention placé latéralement par rapport au navire, tandis que
  • - la figure 4 est une vue de dessus de ce second mode de réalisation.
Other advantages will appear on reading the following description, without limitation, of embodiments for the implementation of the handling assistance method according to the invention, with reference to the drawing in which:
  • FIG. 1 is a schematic elevation view of a device according to the invention placed at the rear of a ship, while
  • FIG. 2 is a top view of this same variant,
  • FIG. 3 is a schematic elevation view of a device according to the invention placed laterally with respect to the ship, while
  • - Figure 4 is a top view of this second embodiment.

En référence aux figures 1 et 2, la récupération par l'arrière du bâtiment 1 est adaptée pour des charges flottantes telles que des véhicules équipés d'un câble de remorquage qui permet de contrôler la position entre le véhicule et la plate-forme 11.With reference to FIGS. 1 and 2, the recovery from the rear of the building 1 is suitable for floating loads such as vehicles equipped with a towing cable which makes it possible to control the position between the vehicle and the platform 11.

Le dispositif selon l'invention est constitué d'une drisse 3 bobinée en double sur le tambour du treuil équipant le système de transfert ou tête de manutention 5 qui sert notamment au relevage de la charge.The device according to the invention consists of a halyard 3 wound in duplicate on the winch drum fitted to the transfer system or handling head 5 which is used in particular for lifting the load.

Deux bras, par exemple des perches flexibles et légères 4, maintenus par des supports orientables dans le plan horizontal, permettent le réglage de l'in- tercept, c'est-à-dire l'écartement de leurs extrémités, la drisse étant tendue à la surface de l'eau par la flexibilité des perches. Chaque extrémité mouillée possède un dispositif de largage 41, par exemple un crochet manoeuvré par un filin 41 a, fixé le long de la perche ou à l'intérieur de celle-ci, et terminé par une poignée qui libère la drisse et une capacité 42 qui assure la flottaison du bras à sa mise l'eau. Les perches peuvent être constituées par exemple de fibres de verre.Two arms, for example flexible and light poles 4, held by supports orientable in the horizontal plane, allow the adjustment of the intercept, that is to say the spacing of their ends, the halyard being taut on the surface of the water by the flexibility of the poles. Each wet end has a release device 41, for example a hook operated by a rope 41 a, fixed along or inside the pole, and terminated by a handle which releases the halyard and a capacity 42 which ensures the flotation of the arm at launch. The poles can be made for example of glass fibers.

Cette variante du dispositif d'aide à la manutention est mise en oeuvre de la façon suivante.This variant of the handling aid device is implemented as follows.

Dans une première phase la tête de manutention 5 est amenée à l'arrière et à l'axe du bâtiment. La drisse sortant du treuil, en forme en boucle, est montée sur les extrémités des perches qui sont alors stockées sur le pont.In a first phase the handling head 5 is brought to the rear and to the axis of the building. The halyard emerging from the winch, in loop form, is mounted on the ends of the poles which are then stored on the deck.

Dans une deuxième phase, le sonar 2 est amené à l'arrière du bâtiment à l'aide du câble de remorquage 7. La tête de manutention est amenée en position pour la récupération, en porte-à-faux à l'arrière du bâtiment. Les bras ou perches 4 sont mis à l'eau et bloqués sur les supports 43 orientables la drisse 3 est tendue entre les extrémités de perches. Les flotteurs 42 reposent sur la surface de l'eau et transmettent les mouvements de houle aux perches articulées autour de leur axe de rotation 44, la flexibilité des perches assurant la tension de la drisse.In a second phase, the sonar 2 is brought to the rear of the building using the towing cable 7. The handling head is brought into position for recovery, cantilevered at the rear of the building . The arms or poles 4 are put in the water and locked on the adjustable supports 43 the halyard 3 is stretched between the ends of the poles. The floats 42 rest on the surface of the water and transmit the swell movements to the poles articulated around their axis of rotation 44, the flexibility of the poles ensuring the tension of the halyard.

Ensuite, troisième phase, le sonar 2 est tiré sur l'arrière de manière à ce que le crochet 21 happe la drisse 3 tendue entre les perches, et qui est alors solidarisée au crochet, par exemple par fermeture d'un linguet.Then, third phase, the sonar 2 is pulled on the rear so that the hook 21 catches the halyard 3 stretched between the poles, and which is then secured to the hook, for example by closing a latch.

Dans une quatrième phase, on libère la drisse 3 des extrémités de perche 4 par un système de décrochage 41. Le treuil de la tête de manutention 5 remonte le sonar 2 et l'immobilise sur les défenses.In a fourth phase, the halyard 3 is released from the pole ends 4 by a release system 41. The winch of the handling head 5 raises the sonar 2 and immobilizes it on the defenses.

Les perches 4 sont relevées, par exemple manuellement, à l'aide de filins 61 attachés préalablement à ces perches, et sont stockées sur le pont.The poles 4 are raised, for example manually, using ropes 61 previously attached to these poles, and are stored on the deck.

Enfin, dans une cinquième et dernière phase, la tête de manutention 5 est ramenée sur le pont. Le treuil libère le sonar 2 qui est posé sur un chariot de manutention. La drisse 3 est dégagée du crochet 21 et le câble de remorquage 7 est libéré du sonar 2. De préférence, la légéreté des perches permet leur manipulation manuelle, mais mes moyens de relevage avec motorisation peuvent être utilisés pour manoeuvrer des bras qui seraient plus rigides et plus lourds.Finally, in a fifth and final phase, the handling head 5 is brought back to the deck. The winch releases the sonar 2 which is placed on a handling trolley. The halyard 3 is released from the hook 21 and the towing cable 7 is released from the sonar 2. Preferably, the lightness of the poles allows their manual manipulation, but my lifting means with motorization can be used to maneuver arms which would be more rigid and heavier.

Les figures 3 et 4 montrent le dispositif d'assistance à la manutention appliqué à la récupération d'un véhicule par le côté d'un bateau ou plate-forme à l'arrêt, lorsque celle-ci ne peut avoir lieu à l'arrière du bâtiment (risque de heurts sur l'arrière, proximité des hélices, et...) ce procédé permet la reprise par le côté et est particulièrement adapé au relevage de charges filoguidées.Figures 3 and 4 show the handling assistance device applied to the recovery of a vehicle by the side of a stationary boat or platform, when it cannot take place aft of the building (risk of knocks on the rear, proximity of the propellers, and ...) this process allows recovery from the side and is particularly suitable for lifting wire-guided loads.

Le dispositif présente deux bras de maintien 4a et 4b, articulés autour d'un axe solidaire 44 de la coque 1 qui peuvent se déplacer simultanément dans un plan vertical. Le bras le plus proche de la coque 4a ne peut se déplacer que dans un plan parallèle à l'axe du bâtiment; l'autre 4b peut être écarté du précédent grâce à un vérin 43 assurant ainsi la tension d'un brin de drisse 3 sortant de la tête de grue 8 et passant par les extrémités mouillées des deux bras 4a et 4b. Ces dernières comportent en outre un dispositif de largage qui libère la drisse, et une capacité 42 qui assure la flottaison du bras à sa mise à l'eau.The device has two holding arms 4a and 4b, articulated around an axis 44 integral with the shell 1 which can move simultaneously in a vertical plane. The arm closest to the hull 4a can only move in a plane parallel to the axis of the building; the other 4b can be moved away from the previous one thanks to a jack 43 thus ensuring the tension of a halyard strand 3 coming out of the crane head 8 and passing through the wet ends of the two arms 4a and 4b. The latter also comprise a release device which releases the halyard, and a capacity 42 which ensures the flotation of the arm when it is launched.

Les opérations se déroulent alors comme suit.The operations then take place as follows.

Dans une première phase la grue 8, est amenée de manière à faire passer, manuellement, sur le pont, la drisse 3 sur les extrémités des bras de maintien.In a first phase the crane 8 is brought so as to pass, manually, on the bridge, the halyard 3 on the ends of the holding arms.

Dans une deuxième phase les bras, ou perches, 4a et 4b sont libérés de leurs attaches de la coque et dépliés dans l'eau, l'un s'écartant de l'autre grâce au vérin 43 prévu à cet effet. La grue 8 descend simultanément. Les deux bras reposent sur l'eau au contact de leurs flotteurs 42. Le brin de drisse est alors tendu horizontalement à la surface de l'eau, de par la flexibilité des bras.In a second phase, the arms, or poles, 4a and 4b are released from their hull attachments and unfolded in the water, one deviating from the other thanks to the jack 43 provided for this purpose. Crane 8 descends simultaneously. The two arms rest on the water in contact with their floats 42. The halyard strand is then stretched horizontally over the surface of the water, due to the flexibility of the arms.

Au cours de la troisième phase, le véhicule filoguidé 2 est amené à passer entre les deux flotteurs 42 de manière que le crochet 21 qu'il porte en partie supérieure vienne happer le brin de drisse 3 horizontal qui reste prisonnier. S'il y avait rupture du fil de guidage du poisson, le bâtiment devrait se déplacer lentement de façon à amener le brin au contact du crochet du poisson inerte.During the third phase, the guided vehicle 2 is caused to pass between the two floats 42 so that the hook 21 which it carries in the upper part comes to catch the horizontal halyard strand 3 which remains trapped. If the fish guide wire is broken, the vessel should move slowly to bring the strand into contact with the inert fish hook.

Ensuite, une tension peut être exercée sur les deux brins obliques de drisse qui se libèrent des extrémités 41 de bras, ou les crochets peuvent être manoeuvrés par un filin 41 a, et le sonar est alors remonté, plaqué et maintenu contre les défenses.Then, a tension can be exerted on the two oblique strands of halyard which are released from the ends 41 of arm, or the hooks can be operated by a rope 41 a, and the sonar is then reassembled, plated and maintained against the defenses.

Lors d'une cinquième phase, de façon connue, l'ensemble est alors remonté et après rotation la grue 8 dépose le sonar dans le berceau d'un chariot monté sur des rails.During a fifth phase, in known manner, the assembly is then reassembled and after rotation the crane 8 deposits the sonar in the cradle of a carriage mounted on rails.

Enfin, les deux bras sont alors remontés à l'aide d'un moyen de levage, éventuellement manuellement, et amarrés le long de la coque 1 sur des supports de fixation 13.Finally, the two arms are then reassembled using a lifting means, possibly manually, and moored along the hull 1 on fixing supports 13.

Claims (12)

1. A process intended to assist in handling a floating load from a ship or a floating platform, characterized in that it consists, between a known handling stage comprising the towing and/or relative positioning of the load with respect to the ship, and a known handling stage comprising the hoisting of the load onto the ship, of a stage of positioning and hooking said floating load, equipped with a hooking device in its upper portion, with respect to a line tightened at the water surface between the ends of at least two arms hinged with respect to the ship.
2. A process as defined in claim 1, characterized in that it comprises, after the hooking of the load with a view to its hoisting, a stage of disconnecting the line from the ends of the arms between which said line is tightened.
3. A process as defined in claim 2, characterized in that the line is rewound during the load hoisting stage.
4. An apparatus intended to assist in handling a floating load (2) for implementing the process as defined in any of claims 1 to 3 at the stern of a ship (1) equipped with towing and hoisting means (5), characterized in that it comprises two arms (4), located on either side of said towing and hoisting means, each of said arms having one end attached to a hinging device (44) secured to the stern of the ship, and one end (41) equipped with a float (42) and a means for disconnecting a line (3), said line being tightened between the floating ends of each of said arms.
5. An apparatus as defined in claim 4, characterized in that it is associated with a hoisting means for operating the arms.
6. An apparatus as defined in claim 4, characterized in that the hinging device comprises a hinge bolt enabling the arm to move vertically and a plate enabling the arm to move horizontally in order to adjust the distance between the floating ends of each arm.
7. An apparatus intended to assist in handling a floating load for implementing the process as defined in any of claims 1 to 3 on the side of a ship (1) equipped with a hoisting means (8) , characterized in that it comprises at 1 east two arms (4a, 4b), each of said arms having one end attached to a common hinging device (44), secured laterally as to the hull, and one end (41) equipped with a float (42) and a means for connecting a line (3), said line being tightened between the floating ends of each arm.
8. An apparatus as defined in claim 7, characterized in that the line tightened between said arms is loop-connected to the end of the hoisting means.
9. An apparatus as defined in claims 7 or 8, characterized in that it comprises a first arm hinged rotationally in a vertical plane along the hull of the ship.
10. An apparatus as defined in claim 9, characterized in that it comprises a second arm (4b) that can be operated by means of a jack (43) resting on the first arm for separating the second arm from the first, in order to tighten the line between the ends of the arms.
11. An apparatus as defined in any of claims 4 or 7, characterized in that the arms are flexible booms.
12. An apparatus as defined in any of claims 8 to 11, characterized in that it comprises additionally a support (13) for stowing the arms folded laterally along the hull.
EP19870401539 1986-07-10 1987-07-02 Procedure and apparatus to assist in the treatment of a floating load Expired EP0254619B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8610047 1986-07-10
FR8610047A FR2601323B1 (en) 1986-07-10 1986-07-10 METHOD AND DEVICE FOR ASSISTING THE HANDLING OF A FLOATING LOAD

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EP0254619A1 EP0254619A1 (en) 1988-01-27
EP0254619B1 true EP0254619B1 (en) 1989-10-11

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Application Number Title Priority Date Filing Date
EP19870401539 Expired EP0254619B1 (en) 1986-07-10 1987-07-02 Procedure and apparatus to assist in the treatment of a floating load

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EP (1) EP0254619B1 (en)
DE (1) DE3760722D1 (en)
FR (1) FR2601323B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19544656C1 (en) * 1995-11-30 1997-02-27 Stn Atlas Elektronik Gmbh Ships salvaging equipment for floating objects having there own eyes
DE102014113184A1 (en) * 2014-09-12 2016-03-17 Thyssenkrupp Ag A vehicle system including a mothership and an unmanned watercraft and method of retrieving an unmanned watercraft
DE102016117311A1 (en) 2016-09-14 2018-03-15 Technische Universität Berlin DEVICE FOR HITCHING A COUPLING DEVICE TO A FLOATING OBJECT
DE102017127553A1 (en) * 2017-11-22 2019-05-23 Atlas Elektronik Gmbh RECORDING APPARATUS FOR RECEIVING AN UNMANNED UNDERWATER VEHICLE AND METHOD FOR RECYCLING AN UNMANNED UNDERWATER VEHICLE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR499419A (en) * 1916-10-28 1920-02-11 Paul Koster Device for protecting ships against anchored mines
GB1410324A (en) * 1971-09-13 1975-10-15 Speedcranes Ltd Apparatus for raising floating bodies

Also Published As

Publication number Publication date
EP0254619A1 (en) 1988-01-27
FR2601323B1 (en) 1988-10-07
FR2601323A1 (en) 1988-01-15
DE3760722D1 (en) 1989-11-16

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