EP1268267B1 - Systeme flottant et procede correspondants - Google Patents

Systeme flottant et procede correspondants Download PDF

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Publication number
EP1268267B1
EP1268267B1 EP01925592A EP01925592A EP1268267B1 EP 1268267 B1 EP1268267 B1 EP 1268267B1 EP 01925592 A EP01925592 A EP 01925592A EP 01925592 A EP01925592 A EP 01925592A EP 1268267 B1 EP1268267 B1 EP 1268267B1
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EP
European Patent Office
Prior art keywords
floating
hoisting
hoisting member
arrangement
suitably
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
Application number
EP01925592A
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German (de)
English (en)
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EP1268267A1 (fr
Inventor
Sune Georg Axelsson
Folke Vidar Axelsson
Claes Arnold EKSTRÖM
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ASCE Ltd AB
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ASCE Ltd AB
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Publication of EP1268267A1 publication Critical patent/EP1268267A1/fr
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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 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/40—Use of lowering or hoisting gear
    • 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 arrangements and methods at devices capable of floating, such as rescue craft or the like, wherein the device is hoisted and/or lowered by means of a flexible primary hoisting member which in operation extends essentially vertically and which is included in a hoisting arrangement comprising hoisting means, e.g., a winch or the like device which is provided at a ship or at a corresponding arrangement.
  • hoisting means e.g., a winch or the like device which is provided at a ship or at a corresponding arrangement.
  • the present invention relates to a method for attaching to and, respectively, releasing from a flexible primary hoisting member, a device which is capable of floating on a water surface, e.g., a vessel such as a rescue craft or the like, suitably so that an attaching and, respectively, a detaching include coupling operations between the device capable of floating and a secondary hoisting member.
  • the invention also relates to a method for connecting, in a releasable manner, a device capable of floating, wherein said device is hoisted and/or lowered by means of a flexible primary hoisting member which in operation extends essentially vertically and which is included in a hoisting arrangement which is provided at a ship or the like.
  • the invention further relates to an arrangement for hoisting and, respectively, lowering a floatable arrangement in relation to a water surface, suitably for launching and, respectively, taking aboard rescue craft or the like at ships, the arrangement comprising at least one flexible primary hoisting member, known per se, which is provided at a hoisting arrangement.
  • Prior art includes various arrangements for launching, at a ship's side, floatable devices such as rescue craft, rafts and similar small craft. Often the purpose of these arrangements is to secure, in an emergency situation, a safe transfer of passengers and crew between the ship and the small craft.
  • One such known arrangement comprises davits, of which an outer end can be positioned out over the ship's side so that a hoisting member running form the davit can be attached to or separately be detached from the small craft when it is located on the water surface at the ship's side.
  • Classic lifeboat arrangements at least comprise the feature that a lifeboat located on board the ship can be launched in this manner, the arrangement comprising engaging means which primarily are intended to be released from the lifeboat, which should be possible even in difficult circumstances with wind and heavy sea.
  • Norwegian Patent No. 89234 and British patent application No. 2 092 101 may serve as examples.
  • such hoisting devices usually are provided with self-tensioning means in order to facilitate the coupling between a lifeboat and a hoisting cable, the purpose of such arrangements being an automatic compensation of the impact of heavy sea.
  • self-tensioning means in order to facilitate the coupling between a lifeboat and a hoisting cable, the purpose of such arrangements being an automatic compensation of the impact of heavy sea.
  • the object of the present invention is to provide a simple way for attaching lifeboats, rescue craft or similar freely floating arrangements to a hoisting member, also in conditions where the connection of the hoisting member to the small craft can be done even by hand.
  • a further object of the present invention is to provide an arrangement where at a ship already existing davits, lifeboats and the like to a wide extent can be utilized without difficulty and extensive modifications.
  • the method related to attaching floating devices is characterized in rendering a point at said primary hoisting member, by means of separate floating means, into such a position in relation to the floatable device that a connecting secondary hoisting member acting between said device and said point, while a slack is preserved, can be connected for a hoisting action or, respectively, be released from such a connection.
  • the method for connecting a device capable of floating is characterized in that said device capable of floating and separately provided floating means are maintained in a mutually generally horizontally centered position in such a way that one or several first connecting points at said device will be located essentially underneath and at a distance from one or more co-operating second connecting points at said floating means, said distance being maintained by means of said separately provided floating means through affecting primary hoisting members in such a manner that secondary hoisting members acting between said first and said second attachment points can be connected to or, respectively, released from said cooperation while maintaining a slack which is suitable for the coupling operation.
  • the arrangement according to the present invention is characterized in that the arrangement includes, on one hand, floating means which are floating as such and acting at such a point at the flexible primary hoisting member which point is located at a vertical distance from the floatable device's engaging means, and, on the other hand, includes connecting secondary hoisting members which are flexible in at least one direction and arranged for connection between said point and said floatable device's said engaging means.
  • the arrangement according to the present invention can be described so that a craft or a similar floatable arrangement is being handled freely hanging in a primary hoisting member via a secondary portion of the same arranged in line with said first portion, or via a correspondingly provided separate secondary hoisting member, while a docking unit is arranged, in order to position said secondary portion or hoisting member in relation to the water surface, to be hanging in another portion of the same hoisting member at a point which is located above said secondary portion.
  • both the craft and the docking unit load the hoisting member essentially directly, while the water lifts the craft somewhat in relation to the docking unit and thus creates a slack in said secondary portion.
  • said secondary portion has such a slack which renders possible a manual coupling operation between said portion and said craft.
  • the lifting force which the water exerts on a floating means which at least in a vertical direction is independent in relation to said craft and which is attached to said primary hoisting member is utilized for vertically positioning a portion of said hoisting members in relation to said craft, suitably so that the buoyancy of said floating means is caused to act on said hoisting member at such a point which is located above said secondary portion or above such an end thereof which is intended to be coupled to said craft.
  • one portion of said secondary flexible hoisting then be functionally located suitably at least slightly beneath engaging means arranged at the craft, or beneath an attachment point which is defined in some other way, to which point said portion will be connected, said portion meanwhile being horizontally essentially freely movable in relation to the attachment point.
  • the craft can now be attached to or, respectively, released from this portion by means of, for example, a crane hook or a corresponding engaging means.
  • both the craft and the floating means will be located freely floating on the water surface.
  • said secondary hoisting member in practice, will exhibit a slack which renders possible a performing without any risk of accidents the coupling operations, i.e. a releasing and, respectively, an attaching.
  • an arrangement in accordance with the present invention comprises a flexible primary hoisting member 1, known per se, for example a hoisting cable or the like, which member at its upper end is attached to a hoisting arrangement including, for example, a winch 2 or some similar means which is shown in more detail in Fig. 2, by means of which means the vertical position of a lower portion 1a of said primary hoisting member 1 can be adjusted.
  • a hoisting member 1 is suitably guided over a davit 3 or the like means having an arm 4 which defines a horizontal position for an upper portion 1b of said hoisting member 1 in relation to a device which is relatively stationary in comparison with the device capable of floating.
  • said relatively stationary device can comprise a ship's side 5 or the like, or, e.g., an oil rig, a wall of a quay, or some other such major device, while the floatable device can comprise, e.g., a small craft or the like.
  • a ship's side 5 is roughly indicated in phantom in Fig. 1 in a schematic manner, and in the same schematic manner is shown a level 6 which, for example, indicates the height of a ship's deck or the like which is located at a considerable distance "a" from a water surface 7.
  • This distance can, in practice, be anything from a few meters to tens of meters.
  • the distance between said level 6 and the water surface 7 may greatly vary in a relatively short period of time, which is illustrated in Fig. 1 by indications 7' and 7", respectively.
  • a small craft 8 or some other floatable device which floats relatively freely on the water surface 7 behaves in the same manner.
  • the vertical position of said lower end can be considered as relatively stationary in relation to said level 6.
  • a ship in the water is not, in practice, fully stationary either, since also the ship 5 heaves. This heaving also causes the ship's deck to move horizontally, so that not either the horizontal position of the upper end 1b of the hoisting member 1 will be in any way fully fixed.
  • the ship's movements are of a considerably slower character in comparison to the movements of the smaller craft, one can, in theory, primarily start from the assumption that said one end 1b is essentially fixed while the other one is movable at least in vertical direction.
  • the impact of the wave motion on the water surface 7 is now transferred to the lower portion 1a of the hoisting member 1 by allowing the buoyancy of means 9 which float on the water surface 7 to act suitably directly on an attachment point 10 which is connected to said lower portion 1a of the hoisting member 1.
  • this is suitably accomplished by means of a framework 18 which is provided at a pontoon means, a buoy means or the like, which framework is included as a part of a floating arrangement 11 in order to position said attachment point 10.
  • a dash-dotted line is used to indicate an alternative position 7' for the water surface 7 and said framework 18.
  • this arrangement provides a functional connection or positioning between said lower portion 1a of said hoisting member 1 and the water surface 7. At the same time this, however, means that a functional positioning of said lower end 1a is achieved also in relation to all other such means which float on the water surface 7 at essentially the same spot and which have an essentially similar displacement and pattern of motion as said pontoons 9.
  • said floatable device can have a displacement of, for instance, 1.6 tons while its docking unit, i.e. the floating arrangement which performs the positioning of the primary hoisting members 1 can have a displacement of 0.6 tons, whereby the whole arrangement can be hoisted, with a good safety margin, in a normal 3 ton davit.
  • the coupling portion 1c is disclosed, in order to show the principle, as a flexible loose member having co-operating engaging means 12, 12a and 13, 13a, respectively, at each end, but in practice the most favorable arrangement is one where one end is more or less permanently attached, suitably so that the upper end 12a is attached at least in advance to the engaging means 13a of said the floating arrangement 11, if it is not attached thereto in a completely fixed manner.
  • engaging means comprising an open hook and a simple ring have been schematically shown, but in practice these means are designed, of course, to match all such safety precautions which are required for hoisting, for example, rescue crafts 8 including crew and people in distress.
  • Figures 5 to 8 show in more detail embodiments wherein the actual rescue craft 8 is provided with heavier hook means 13, for instance known remotely releasable means, while the associated engaging means 12 are essentially light weight means, which facilitates their handling and minimizes the risks in heaving sea.
  • the co-operating engaging means 12, 13 can be attached with no lifting effect whatsoever during the actual coupling operation, and with this the risk of such injury to people or equipment is eliminated which possibly arises at coupling.
  • said means 12 and 13 have been interconnected the craft and the pontoon means 9 can continue to float freely, but, contrary to the earlier stage, the whole arrangement can now also be hoisted as an entity, which situation will be described below in more detail.
  • FIGS 2 to 4 generally present a favorable arrangement for putting in practice the present invention.
  • This arrangement includes a pulling means 14, for instance a drag wire which extends in a generally slanting horizontal manner in the direction of the ship's side 5.
  • this pulling means 14 emerges from a favorably collapsible boom 15 which comprises winching means 16 for controlling the length of the drag wire 14, where said winching means suitably comprise shock absorbing means for counteracting any jerks.
  • the general direction is stabilized for the floatable docking unit 11 which is constituted by the generally parallel pontoons 9, which stabilization makes it easy to drive the craft 8 in between the pontoons 9 also in rough weather and heavy sea.
  • the entity comprising the craft 8, the pontoons 9 and the framework 18 arranged in connection with the is also stabilized by means of said pulling means 14 when said entity is hoisted and, respectively, lowered.
  • the length of the drag wire 14 and the general geometry of the arrangement is preferably adapted to the dimensions of the ship so that the length of the pulling cable during launching will be adapted to the point where the docking unit 11 and the rescue craft 8 meet the water surface 7.
  • the drag wire's 14 elevation angle from the water surface 7 up towards the deck should not exceed about 33°.
  • the embodiment disclosed in Figs. 2 to 4 favorably includes the ship's standard cranes or davits 3, which already, according to current requirements, are provided with a self tensioning feature.
  • This feature which usually can be switched on and off, normally works for such loads as life-boats and the like, which loads have a weight exceeding 300 kilograms, and it ensures that the hoisting cable 1 automatically will be tensioned so that slack is prevented when the waves lift the lifeboat, while it gives out more of the hoisting cable as the waves subside.
  • this self tensioning device operates based on the dead weight of the docking unit 11 which is constituted by the pontoon arrangement.
  • said dead weight suitably is in the order of 600 kilograms.
  • Fig. 3 shows that the docking unit 11 which is constituted by said pontoon arrangement 9 and said framework 18 suitably is designed as a catamaran-like device, wherein the pontoons 9 at the same time constitute fender means against the ship's side 5.
  • the rescue craft 8 or the like will at a hoisting operation be directly suspended from the hoisting member 1, the docking unit 11 thus carrying only its own weight.
  • the actual docking unit 11 can be made very light.
  • the docking unit 11 comprises a generally U-shaped cradle which favorably is open at the stern, which cradle is formed of said suitably pontoon-like buoyant bodies 9.
  • Said buoyant bodies 9 are connected by means of said framework 18, which above an open space forms a hoisting yoke by means of which the docking unit 11 can be hoisted.
  • said hoisting yoke serves as a hoisting means for the attachment point 10 at the hoisting members 1.
  • the open space formed between the pontoons 9 is intended to receive the rescue craft 8, and favorably it is dimensioned accordingly.
  • Fig. 3 further shows that the framework 18 favorably also comprises one or more connecting supports 19 which extend below said open space and thus reinforce the structure.
  • This support 19 is arranged at such a distance "b" from the bottom of the rescue craft 8 that the weight of the craft to no essential extent will be resting on the support 19 even in a hoisted position.
  • the rescue craft 8 and the docking unit 11 will be freely suspended at the primary hoisting member 1 as well as, respectively, at the secondary hoisting member 1c attached to it, essentially independent of each other, while a clearance "b'" is maintained, i.e.
  • the whole framework 18 can be designed to have very light structures, since they mainly need to support just their own weight.
  • the docking unit 11 can be composed of, for example, foam- filled plastic tubes which serve as said buoyant bodies 9, while the framework 18 suitably can be made of aluminium, fibre glass, plastics, steel or the like.
  • a craft 8 is suitably parked on the deck 6 at the ship's side 5.
  • the craft 8 and the docking unit 11 are lowered into the water.
  • the docking unit is preferably connected by means of a drag wire 14 fore to the ship in order to give the docking unit 11, and thus also the craft 8 connected to it, a forward speed.
  • the docking unit and the craft are in the water engaging means 12, 13 at the attachment portion 1c are released and the craft 8 floats out of the docking unit 11 while maintaining the forward movement.
  • the retrieving on board is done in a corresponding manner so that the craft 8 runs in into the docking unit 11, whereafter the crew engages a short length of wire 1c to means 13 provided at the craft 8 for this purpose.
  • a preventer wire 17 serves as a lock between the craft 8 and the docking unit 11 for preventing such horizontal movements, which otherwise could be possible within the range of the slack in the length of wire 1c.
  • the distance "b" between the keel of the craft and a bottom rail 19 which preferably is arranged for stabilizing the floating means, i.e. the docking unit 11, is larger than the slack in the short length of wire 1c.
  • a primary hoisting cable 1 is attached to, for example, a davit 3 which is suitably arranged in a pivotable manner on the deck of the ship (not shown in Figs. 5 to 8), while a winch arrangement 2 connected to said davit 3 comprises means which, suitably with a self tensioning action, tighten the hoisting cable into a position shown in Fig. 5.
  • the ship is moving forward at a speed of suitably 5 to 8 knots, while a drag wire 14 provided at a suitably collapsible hauling boom 15 tows the docking unit 11 as described above.
  • a drag wire 14 provided at a suitably collapsible hauling boom 15 tows the docking unit 11 as described above.
  • the docking unit 11 is kept at a safe distance "e" from the ship's side 5, the position at the same time being such, that the hoisting cable 1 extends essentially vertically. This position also corresponds to the situation where the docking unit 11 together with the rescue craft 8 is being launched off the deck.
  • the craft 8 can move essentially freely at its own power into the space between the pontoons 9 of the docking unit 11 and, respectively, out of this space.
  • the coupling portion i.e. the secondary hoisting member 1c
  • the coupling portion can be constituted by a portion of said hoisting member 1 or, alternatively, be a separate corresponding device provided at the hoisting yoke of the framework 18, for instance the separate length of wire 1c described above, which separate length of wire is essentially loosely arranged as a suitably direct extension of the hoisting member 1.
  • This portion 1c comprises a crane hook 12, a loop or the like means for cooperation with corresponding means 13 arranged at the rescue craft 8, and said portion preferably exhibits a slack of about 100 millimeters.
  • a preventer wire 17 is preferably arranged for stabilizing the movements of the length of wire 1c and thus for facilitating the engagement operations. Said preventer wire 17 also prevents the rescue craft 8 from sliding out of the docking unit 11 at hoisting.
  • Fig. 6 shows that the helmsman at the rescue craft 8 preferably keeps the bow against the docking unit 11 by maintaining a certain forward thrust in order to, at the same time, in this manner clearly position the engaging means 13 provided at the craft in relation to the docking unit 11 and thus also to the engaging means 12 of the secondary hoisting wire 1c .
  • the docking unit is preferably designed so that it, as such, guides the positioning.
  • the rescue craft 8 as such is not in engaging contact with the docking unit's rail 19 located underneath nor with any other submerged portion of the docking unit 11, but on the contrary so that there is a certain vertical clearance "b" between boat and dock.
  • the docking unit 11 follows the motions of the rescue craft 8 in the water in such a way that entering and, respectively, exiting as well as the engagement operation between craft and unit can proceed without difficulty.
  • both the craft 8 and the docking unit 11 will have essentially the same pattern of motion in the water a distance "d" between said point 10 and said engaging means 13 will remain essentially constant regardless of the heave of the sea. Due to the slack in the lower portion 1c of the secondary hoisting members, a coupling maneuver between the engaging portion 12 of the hoisting member and the engaging means 13 of the rescue craft can be performed at this stage, for example, manually without risk of accidents or injuries, while the self tensioning of the davit arrangement as such reacts to the weight of the docking unit 11 and keeps the hoisting cable 1 stretched.
  • the engaging means 12, 13 as such are suitably known per se, favorably so that they are manually releasable co-operating means, one 12 of which is provided at the free extension of the hoisting member 1, and a second one at the rescue craft so that at hoisting the connection 12-13 as such can carry the full load constituted by the craft.
  • the self tensioning feature of the hoisting winch is deactivated.
  • the docking unit 11 gets lifted first, since it is directly attached to the hoisting cable 1 via the attachment point 10 and the hoisting yoke 18. Meanwhile, the slack in the functionally lowest portion 1c of the hoisting cable 1 is stretched, after which the hoisting cable acts directly also on the rescue craft 8, the bottom of which still remaining clear of the bottom rail 19 by said clearance "b'" and thus the bottom will be to no essential extent supported by the docking unit.
  • any one of the co-operating engaging means can be included as part of the craft, while another part can constitute a structural part of the coupling portion of the hoisting members. It is also irrelevant for the function how, for example, hook means and loop means, respectively, in practice are designed or located. Above a favorable embodiment has also been described mainly as an example, wherein a coupling portion having a slack, for instance a length of wire, is attached more or less permanently at the floating means, i.e. at the docking unit 11.
  • the same function can be achieved also at a reverse arrangement wherein the coupling portion primarily is attached to the craft 8, while the docking unit 11 comprises engaging means, to which the coupling portion will be attached. It is also obvious that instead of a length of wire or some similar coupling portion which is flexible in all directions, also means having a more rigid nature, for example restrictedly telescopic and favorably laterally movable means can be used. According to one embodiment the secondary hoisting member 1c comprises longitudinally elastic means in order, for example, to facilitate the engagement.

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  • Engineering & Computer Science (AREA)
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  • Ocean & Marine Engineering (AREA)
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Claims (14)

  1. Un procédé pour fixer et, respectivement, retirer un dispositif (8) qui est capable de flotter sur une surface d'eau (7, 7', 7"), par exemple une petite embarcation tel qu'un bateau de sauvetage ou analogue, à ou, respectivement, d'un élément de levage primaire souple (1) qui est manoeuvré au moyen de moyens de levage (2) disposés, par exemple, dans une disposition de levage (3) au niveau d'un navire ou analogue, caractérisé en ce qu'un point (10) au niveau dudit élément de levage primaire (1) est amené, au moyen de moyens flottants séparés (11) dans une position, par rapport audit dispositif flottable (8), telle que un ou des élément(s) de levage secondaire(s) d'interconnexion (1c) agissant entre ledit dispositif (8) et ledit point (10) peut (peuvent) être relié(s), avec un certain mou, pour commencer une action de levage ou, respectivement, peut (peuvent) être retiré(s) d'une telle liaison.
  2. Un procédé selon la revendication 1, caractérisé dans le maintien dudit mou sous des circonstances telles qu'à la fois lesdits moyens flottants (11) et ledit dispositif (8) capable de flotter flottent librement sur la surface d'eau (7, 7', 7") dans une disposition mutuelle qui est centrée de manière généralement horizontale, tout en permettant à un impact de levage en provenance dudit élément de levage primaire (1) d'agir, pendant le levage, d'une part de manière essentiellement directe sur lesdits moyens flottants (11) et, d'autre part, d'agir par l'intermédiaire d'une extension constituée par le ou lesdits élément(s) de levage secondaire(s) d'interconnexion (1c) également de manière essentiellement directe sur ledit dispositif (8) capable de flotter.
  3. Un procédé selon la revendication 1 ou 2, caractérisé dans le maintien dudit élément de levage primaire (1), au moyen desdits moyens de levage, dans un état généralement tendu, de manière approprié au moyen de moyens auto-tendeurs prévus au niveau desdits moyens de levage, de sorte que ledit point (10) sera placé, d'une manière qui est essentiellement indépendante de toutes variations de niveau (7', 7") de la surface d'eau (7), à une distance principalement constante (c) de la surface d'eau (7), ladite distance étant définie par lesdits moyens flottant (11).
  4. Un procédé selon l'une quelconque des revendications 1 à 3 caractérisé en ce que la position horizontale et, de manière appropriée également l'orientation desdits moyens flottants (11), est définie, au moyen d'éléments de traction séparés (14) qui de manière appropriée sont reliés au navire ou analogue par l'intermédiaire d'un élément à mât de charge (15), de sorte que ledit dispositif (8) capable de flotter ainsi que lesdits moyens flottants (11) peuvent, aisément, être mutuellement centrés horizontalement.
  5. Un procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le ou lesdits moyen(s) de levage secondaire(s) d'interconnexion (1c) est (sont) constitué(s) par un dispositif qui est fixé de manière essentiellement permanente auxdits moyens flottants et/ou audit élément de levage primaire (1), ledit dispositif étant de manière appropriée une longueur de câble ou analogue, dont une partie d'engagement distale (12) est de manière favorable stabilisée au moyen de moyens empêcheurs (17) reliés à un point situé horizontalement à une certaine distance dudit point.
  6. Un procédé pour engager, d'une manière retirable, un dispositif (8) capable de flotter, tel qu'un bateau de sauvetage ou analogue, à un élément de levage primaire souple (1) qui, en fonctionnement, s'étend de manière essentiellement verticale et qui est inclus dans une disposition de levage (3) prévu pour se lever et, respectivement, s'abaisser au niveau d'un navire ou analogue, caractérisé en ce que ledit dispositif (8) est capable de flotter ainsi que des moyens flottants disposés de manière séparée (11) sont maintenus dans une disposition centrée de manière générale mutuellement horizontale de sorte que un ou plusieurs premier(s) point(s) de fixation (13) au niveau dudit dispositif est (sont) placé(s) essentiellement en dessous d'un ou de plusieurs second(s) point(s) de fixation (10, 12) à une certaine distance (d) de celui-ci (ceux-ci), ledit ou lesdits second(s) point(s) de fixation étant situé(s) au niveau desdits moyens flottants (11) et coopérant avec lesdits premier points de fixation, où ladite distance (d) est maintenue au moyen desdits moyens flottants disposés de manière séparée (11) par l'intermédiaire d'une influence sur ledit élément de levage primaire (1) de telle manière que un ou des élément (s) de levage secondaire (s) (1c) agissant entre ledit premier et ledit second point de fixation (13, 12, 10) peut (peuvent) être fixé(s), ainsi que respectivement être retiré(s) d'action sous un certain mou qui est approprié pour la fonction d'engagement.
  7. Un procédé selon la revendication 6, caractérisé en ce que
       ledit dispositif (8) capable de flotter est amené pour être au moins en partie entouré par des moyens flottants séparés (9, 11) de manière à réaliser un centrage horizontal,
       un intervalle vertical (d) est maintenu entre ledit dispositif (8) capable de flotter et lesdits moyens flottants (11) pendant le temps qu'ils flottent ensemble librement sur une surface d'eau (7, 7', 7"),
       une liaison (12-13) entre le ou lesdits élément(s) de levage secondaire(s) (1c) et au moins un desdits points de fixation (13, 12, 10) est établie ou, respectivement, retirée alors que ledit dispositif (8) et lesdits moyens flottants (11) flottent ensemble de manière essentiellement libre sur la surface d'eau (7, 7', 7"),
       tout en permettant, pendant une phase de levage ou d'abaissement, qu'au moins une partie principale du poids dudit dispositif (8) capable de flotter agisse directement sur ledit élément de levage primaire souple (1), porté de manière appropriée par l'intermédiaire du ou desdits élément(s) de levage secondaire(s) (1c).
  8. Une disposition pour lever et, respectivement, abaisser par rapport à une surface d'eau (7, 7', 7") un dispositif (8) capable de flotter et muni de moyens d'engagement (13) appropriés pour lancer et, respectivement, prendre à bord d'un navire, un bateau de sauvetage ou analogue, ladite disposition comprenant au moins un élément de levage primaire souple (1) prévu au niveau d'une disposition de levage (2, 3) connue en elle-même, caractérisé en ce que la disposition, d'une part, comprend
       des moyens flottants (11) qui flottent tels quels et agissent pour maintenir en service un point (10) au niveau du ou desdits élément(s) de levage primaire(s) souple(s) (1) à une certaine distance verticale (c) de moyens d'engagement (13) prévus ledit dispositif (8) capable de flotter, et, d'autre part,
       un ou des élément(s) de levage secondaire(s) d'interconnexion (1c) qui est (sont) souple(s) dans au moins une direction, le ou lesdits élément(s) de levage secondaire(s) étant disposé(s) pour être fixé(s) entre ledit point (10) et lesdits moyens d'engagement (13) prévus sur ledit dispositif (8) capable de flotter.
  9. Une disposition selon la revendication 8, caractérisée en ce que le ou lesdits élément(s) de levage secondaire(s) (1c) est (sont) constitué(s) par un ou des élément(s) qui est (sont) souple(s) dans au moins une direction, lequel ou lesquels élément(s) s'étend (s'étendent) aussi loin que ou, de préférence en général plus loin que, une distance (d) entre des points de fixation respectifs (13, 10) qui sont prévus, d'une part, au niveau dudit dispositif (8) capable de flotter et, d'autre part, au niveau desdits moyens flottants (11) de telle manière que le ou lesdits élément(s) de levage secondaire(s) (1c) présente (présentent) un certain mou lorsque le dispositif flottant (8) ainsi que lesdits moyens flottants (11) flottent ensemble sur la surface d'eau (7, 7', 7") du fait de leurs flottabilités inhérentes.
  10. Une disposition selon la revendication 8 ou 9, caractérisée en ce que lesdits moyens flottants (11) comprennent un bâti (18) ayant des pontons (9) ou analogue, lequel bâti s'étend à une extension appropriée au dessus et autour d'un espace pour recevoir ledit dispositif (8) capable de flotter, de manière favorable de telle manière qu'une partie supérieure dudit bâti (18) comprend des moyens pour une liaison verrouillable de manière appropriée à un point de fixation (10) au niveau du ou desdits élément(s) de levage primaire(s) (1), ce point étant disposé au niveau de ladite partie.
  11. Une disposition selon l'une quelconque des revendications 8 à 10, caractérisée en ce que le ou lesdits élément(s) de levage secondaire(s) (1c) comprend (comprennent) une longueur de câble prévue au niveau dudit bâti (18), longueur de câble qui est plus longue que ladite distance (d) aux moyens d'engagement (13) prévus au niveau du dispositif flottant (8) lorsque ledit dispositif flotte sur la surface d'eau (7, 7', 7"), et de manière appropriée telle que ledit dispositif flottant (8) pendant le levage soit essentiellement porté complètement par ladite longueur de câble (1c) sans supporter de contact auxdits moyens flottant.
  12. Une disposition selon l'une quelconque des revendications 8 à 11, caractérisée en ce que la disposition comprend en outre un dispositif de levage (14), de manière appropriée un câble de tirage ou le dispositif favorablement souple analogue, au moyen duquel lesdits moyens flottant (11) peuvent être guidés à une position horizontale désirée et, de préférence également, à une orientation désirée, de manière appropriée telle que des moyens à mât de charge (15) sont prévus au niveau du navire pour diriger celle des extrémités dudit dispositif de levage (14) qui se relie au navire.
  13. Une disposition selon l'une quelconque des revendications 8 à 12, caractérisée en ce que le ou lesdits élément(s) de levage primaire(s) souple(s) (1) et/ou ledit dispositif de levage (14) comprend des moyens de tension, d'atténuation ou analogue, de manière appropriée telle que la position générale du ou desdits élément(s) de levage primaire(s) est définie par lesdits moyens, alors que la position d'une partie d'engagement (12) du ou desdits élément(s) de levage secondaire(s) (1c) par rapport auxdits moyens d'engagement (13) du dispositif flottable (8) qui coopèrent avec ladite partie est définie par la flottabilité desdits moyens flottants (11), de préférence de telle manière la partie d'engament (13) soit placé sans impact de puissance à une proximité immédiate des moyens d'engagement (12) telle qu'une liaison puisse être essentiellement réalisée même manuellement.
  14. Une disposition selon l'une quelconque des revendications 8 à 13, caractérisée en ce que ladite partie d'engagement (12) au niveau du ou desdits élément(s) de levage secondaire(s) (1c), ou une partie située à proximité de ladite partie, au moyen d'un câble empêcheur (17) ou analogue est reliée audit bâti (18) de manière à limiter le mouvement libre de ladite partie d'engagement (12) et, en particulier, celle des moyens d'engagement.
EP01925592A 2000-04-05 2001-04-02 Systeme flottant et procede correspondants Expired - Lifetime EP1268267B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20000805 2000-04-05
FI20000805A FI109463B (sv) 2000-04-05 2000-04-05 Flytbart arrangemang och förfaranden vid detsamma
PCT/FI2001/000317 WO2001074655A1 (fr) 2000-04-05 2001-04-02 Systeme flottant et procede correspondants

Publications (2)

Publication Number Publication Date
EP1268267A1 EP1268267A1 (fr) 2003-01-02
EP1268267B1 true EP1268267B1 (fr) 2004-12-15

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Application Number Title Priority Date Filing Date
EP01925592A Expired - Lifetime EP1268267B1 (fr) 2000-04-05 2001-04-02 Systeme flottant et procede correspondants

Country Status (7)

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EP (1) EP1268267B1 (fr)
AT (1) ATE284808T1 (fr)
AU (1) AU2001252292A1 (fr)
DE (1) DE60107823D1 (fr)
FI (1) FI109463B (fr)
NO (1) NO20024820L (fr)
WO (1) WO2001074655A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7506606B2 (en) * 2003-07-03 2009-03-24 Robert Joseph Murphy Marine payload handling craft and system
GB201009253D0 (en) 2010-06-03 2010-07-21 Northern Hydraulic Cylinder Eng Ltd Apparatus for controlling a load
FR2986498B1 (fr) * 2012-02-03 2014-02-14 Thales Sa Ensemble de reception d'un engin navigant et systeme de recuperation et de deploiement a la mer d'un tel engin
GB2532602B (en) * 2014-10-27 2017-01-18 Bmt Defence Services Ltd A system for launch and/or recovery of a vessel
IL242226B2 (en) 2015-10-22 2023-03-01 Peleg Amitai System and method for launching and mooring a vessel
DE102017216112A1 (de) * 2017-09-12 2019-03-14 Thyssenkrupp Ag Aussetz-System und Aussetz-Verfahren mit zusammenziehbarem Vorleinenausleger
US11945553B2 (en) 2018-05-29 2024-04-02 Ronald Johannes KRAFT System for launch and recovery of a surface vehicle
FR3095186B1 (fr) * 2019-04-17 2021-05-07 Eca Robotics Système de récupération d’un engin marin de surface depuis un navire porteur

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2150903B (en) * 1983-12-07 1988-03-02 Per Berger Method and assembly for launching or retrieving a lifeboat
FI101871B (fi) * 1996-02-07 1998-09-15 Axelsson Sune Menetelmä ja järjestely kelluvan välineen vesillelaskua ja vesiltä nos tamista varten
SE506365C2 (sv) * 1996-04-22 1997-12-08 Jan Groenstrand Anordning för sjösättning och upptagning av båtar

Also Published As

Publication number Publication date
FI20000805A0 (fi) 2000-04-05
FI20000805A (fi) 2001-10-06
ATE284808T1 (de) 2005-01-15
WO2001074655A1 (fr) 2001-10-11
EP1268267A1 (fr) 2003-01-02
AU2001252292A1 (en) 2001-10-15
NO20024820D0 (no) 2002-10-04
NO20024820L (no) 2002-10-04
DE60107823D1 (de) 2005-01-20
FI109463B (sv) 2002-08-15

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