EP1038822A1 - Automatic reversible coupling device for a chain and the like which connects an underwater object to the surface - Google Patents

Automatic reversible coupling device for a chain and the like which connects an underwater object to the surface Download PDF

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Publication number
EP1038822A1
EP1038822A1 EP00440086A EP00440086A EP1038822A1 EP 1038822 A1 EP1038822 A1 EP 1038822A1 EP 00440086 A EP00440086 A EP 00440086A EP 00440086 A EP00440086 A EP 00440086A EP 1038822 A1 EP1038822 A1 EP 1038822A1
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EP
European Patent Office
Prior art keywords
chain
cover
link
slot
lifting
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.)
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EP00440086A
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German (de)
French (fr)
Inventor
Bernard Pigois
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Individual
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Individual
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Publication of EP1038822A1 publication Critical patent/EP1038822A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof

Definitions

  • the subject of the present invention is a hanging device reversible automatic of a chain or the like, for the purpose in particular to allow to grab the chain which connects to the surface a submerged object, in order to be able to lift and bring back on the surface of said object or vice versa.
  • the device which is the subject of the present invention is particularly intended to be used for the handling of submersible pumps. Indeed, a submerged pump needs to be regularly maintained, which can only be achieved when it is in the emerged position.
  • a submerged pump is connected to a chain, called commonly lifeline, which allows it to be lifted and bring it to the emerged position, or vice versa, said pump being on the other hand guided in vertical translation by sliding on one or more bars.
  • This device has the disadvantage, in addition to the problems associated to the precision of its assembly to achieve coupling, require that the pump is fitted with it as original equipment, that it is not possible to use it on other pumps or other submerged objects linked to the surface by a chain.
  • This device comprises a tubular body threaded on the chain and on which it can slide to come, by gravity, to closer to the object to be lifted.
  • the tubular body is suspended by its upper end to a means of attachment, and it has in its central region a means of hooking consisting in a semi-longitudinal slot in which the chain can be blocked during pivoting of said tubular body under the effect of traction on a second fastened means of attachment at the lower end of said tubular body, in combination with a loosening of the first attachment means.
  • the stall operation requires pulling on the first means of attachment then a relaxation of the second means of attachment, in order to obtain the pivoting in the opposite direction of tubular body, which then releases the chain.
  • this device To be able to pivot, this device must therefore necessarily include two attachment means secured to the tubular body on either side of the attachment means.
  • tubular body can pivot in one direction as in the other, it is essential to perfectly combine the actions on the first and second attachment means, and this requires preferably two people to perform the maneuver.
  • the object of the present invention is to remedy these drawbacks by proposing a reversible automatic hooking device a chain or the like, allowing lifting operations and easy installation of all submerged objects fitted with a chain, which can for example be carried out by a single person.
  • the reversible automatic hooking device for a chain or the like in particular for the purpose of gripping a chain which connects a submerged object to the surface, with a view to ability to lift and bring said object to the surface or conversely, according to the present invention comprises a means of Securing to a hoist or hoist type lifting device, a means for bringing it by gravity as close as possible to the object immersed in being guided by the chain that connects it to the surface, and it is essentially characterized in that it includes a means for locking it on said chain under the sole action of a traction exerted by said lifting, and vice versa to unlock it under the sole action traction on said chain.
  • the locking means consists of an element mobile able on the one hand to retract when said device descends on the chain, and on the other hand to hang on a link of said chain during traction exerted by the machine lifting.
  • the means for bringing it by gravity at most near the submerged object being guided by the chain that connects this on the surface consists of a tubular element intended to be threaded on the chain, while the securing means a hoist or winch type lifting device consists of a handle intended for hooking the hook of said lifting machine, and that the locking means consists of a cover articulated on the upper edge of said tubular element in which is practiced, perpendicular to the axis of articulation said cover, an open slot with a width between the size and width of the links in said chain, and which extends from the edge of said cover to the central region of it.
  • the cover When descending by gravity on the chain of the element tubular suspended from the hook of the lifting device by through the handle, the cover swings between a closed and open position as the links pass through said chain depending on whether the link passing at the cover is sideways, that is, it can enter the slot and the cover can close, or face, in this case the cover remains open since said link cannot enter the slot.
  • the lifting device As soon as the cover takes a closed position it remains in this position since blocked superiorly by a link presenting itself from the front, and the object submerged can be raised in a single operation, the chain being hung as close as possible to it.
  • the free end of the slot is flared in order to facilitate the transition from one link to another during the descent.
  • the cover comprises on the upper part and at the other end of the slot a bevel facilitating the engagement of said cover under the link which will maintain it closed.
  • the cover is ballasted so as to favor the closed position.
  • the upper edge of the element tubular is cut at a bevel while the cover is articulated on the lowest side, so that the engaged link in the slot comes, under the effect of the traction, in abutment in the bottom thereof, which bottom is preferably arranged with so that the chain is centered on the cover when locking.
  • a device 1 according to the invention, this comprises an element tubular 2 whose upper edge 20 is inclined relative to the axis of the tubular element 2, and to which is secured externally a handle 21 intended for attachment to a hoist or winch type lifting, not shown.
  • the tubular element 2 has externally, on the most bottom of the edge 20, a yoke 22 crossed by a pivot 23 on which is articulated a cover 3 able to cover the edge 20 of item 2.
  • the cover 3 consists of a plate 30 extended by a handle 31 to which is secured below a washer 32 traversed by the pivot 23.
  • the plate 30 has a slot 33 made in the extension of the handle, that is to say perpendicular to pivot 23, and which opens at the edge of plate 30.
  • the slot 33 is of a width between the caliber and the width of the links of a chain, not shown, on which the device 1 is intended to be adapted. Slit width 33 is however closer to the caliber of the link than to its width.
  • cover 3 is balanced by so as to favor the closed position.
  • the attachment device 1 according to the invention is threaded onto the chain 4, this passing through the tubular element 2.
  • the chain 4 is kept taut while the hanging device 1 descends by gravity which causes an oscillation 0 of the cover according to the passage of the links 40 in the slot 33.
  • a link 40 to the right of the cover is placed aside it can be inserted into the slot 33 and the cover can therefore go down, as shown in FIG. 2, on the other hand when a link 40 presents itself face, it cannot penetrate into slot 33 so that the cover is lifted, as shown in Figure 3.
  • FIGS. 2 and 2a a link 401 presenting itself from the east side engaged in the slot 33, due to the downward movement, according to arrow A, of the tubular element 2 there is a relative upward movement of the chain 4, so that the link 402 placed immediately below link 401 and which presents itself from the front, is supported under the cover 3 and the raises.
  • flare 34 and the bevel 35 are intended to allow cover 3 to pass on either side of the base link 403 placed immediately above link 401 and which is presented from the front.
  • the locking of the cover 3 on the chain 4 can be obtained by tapping the tubular element 2, or more precisely on the wire element of the lifting.
  • the tubular element 2 being secured to the chain 4, the object submerged, not shown, can be lifted and brought to the surface in a single lifting operation by pulling on the handle 21.
  • the device according to the invention is unlocked while it is no longer energized, by pressing the handle 31 to lift the cover 3.
  • the hanging device 1 When installing a pump, or any other object submerged, the hanging device 1 is locked on the chain near its attachment point on the pump, which is set up in a single operation. When the pump is in place, dry traction is exerted on the chain 4 which allows to open the cover 3 and do it tilt beyond the vertical of axis 23, so that it does not does not interfere with the sliding of the tubular element 2 on the chain 4. In addition, when reassembling the hanging device 1, the force exerted by the liquid element on the cover 3 keeps it open.
  • the chain 4 can be replaced by a connecting element consisting of a cable at one end of which is joined a short chain attached to the object submerged, and of sufficient length to hang the device according to the invention.
  • such a connecting element allows a faster descent of the device according to the invention, since the cable part does not presents no reliefs likely to slow it down.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

The anchoring system comprises of a tubular element within which the chain (21) is passed through. The tubular element is closed by an angle slotted cap plate (30) that is mounted to a pivot (22) on the outer tube/ The cap plate is moved by a handle assembly (31) such that the chain cane be passed downwardly under gravity. Closure of the cap plate prevents subsequent chain links to pass through the slot.

Description

La présente invention a pour objet un dispositif d'accrochage automatique réversible d'une chaíne ou analogue, dans le but notamment de permettre d'agripper la chaíne qui relie à la surface un objet immergé, en vue de pouvoir soulever et ramener en surface ledit objet ou inversement.The subject of the present invention is a hanging device reversible automatic of a chain or the like, for the purpose in particular to allow to grab the chain which connects to the surface a submerged object, in order to be able to lift and bring back on the surface of said object or vice versa.

Le dispositif objet de la présente invention est particulièrement destiné à être utilisé pour la manutention de pompes immergées. En effet, une pompe immergée nécessite d'être régulièrement entretenue, ce qui ne peut être réalisé que lorsqu'elle est en position émergée.The device which is the subject of the present invention is particularly intended to be used for the handling of submersible pumps. Indeed, a submerged pump needs to be regularly maintained, which can only be achieved when it is in the emerged position.

Ainsi, une pompe immergée est reliée à une chaíne, appelée communément ligne de vie, qui permet de la soulever et de l'amener en position émergée, ou inversement, ladite pompe étant d'autre part guidée en translation verticale par coulissement sur une ou plusieurs barres.Thus, a submerged pump is connected to a chain, called commonly lifeline, which allows it to be lifted and bring it to the emerged position, or vice versa, said pump being on the other hand guided in vertical translation by sliding on one or more bars.

Actuellement, l'extrémité émergée de la chaíne est accrochée au crochet d'un palan pour soulever la pompe en tirant sur la chaíne. Or, du fait que la course du palan jusqu'à la surface de l'élément liquide soit dans la majorité des cas inférieure à la profondeur d'immersion et donc à la longueur de la chaíne, il est nécessaire de procéder au relevage de la pompe en plusieurs étapes, qui comprennent chacune les opérations suivantes: immobilisation de la chaíne, décrochage du crochet du palan, accrochage dudit crochet sur la chaíne au plus près de la pompe puis relevage.Currently, the tip of the chain is hooked to the hook of a hoist to lift the pump by pulling on the chain. However, the fact that the travel of the hoist to the surface of the liquid element is in most cases less than the immersion depth and therefore the length of the chain, it is necessary to lift the pump in several steps, which each include the following: immobilization of the chain, release of the hook from the hoist, hanging said hook on the chain as close as possible to the pump then lifting.

Ces différentes opérations sont fastidieuses et présentent, du fait du poids d'une pompe, des risques physiques pour l'opérateur, tels que par exemple sa chute dans l'élément liquide qui peut consister en de la boue. These different operations are tedious and present the weight of a pump, physical risks for operator, such as falling into the element liquid which may consist of mud.

On notera que la mise en place d'une pompe, ou de tout autre objet immergé, présente les mêmes inconvénients, à moins de prévoir un moyen d'accrochage de la chaíne susceptible d'être décroché depuis la surface.Note that the installation of a pump, or any other submerged object, has the same disadvantages, unless provide a means of attachment of the chain likely to be off the surface.

Pour pallier ces divers inconvénients il a été proposé dans le document EP 0.775.663 un dispositif pour manipuler des appareils submersibles, qui comprend un étrier de levage solidaire de la pompe et un moyen d'accrochage monté coulissant sur les moyens de guidage de la pompe et apte à coopérer avec ledit étrier de levage.To overcome these various drawbacks, it has been proposed in the document EP 0.775.663 a device for handling devices submersible, which includes a lifting stirrup secured to the pump and a hooking means mounted sliding on the means guiding the pump and able to cooperate with said stirrup lifting.

Ce dispositif présente l'inconvénient, outre les problèmes liés à la précision de son montage pour réaliser l'accouplement, de nécessiter que la pompe en soit équipée d'origine, en sorte qu'il n'est pas possible de l'utiliser sur d'autres pompes ou autres objets immergés reliés à la surface par une chaíne.This device has the disadvantage, in addition to the problems associated to the precision of its assembly to achieve coupling, require that the pump is fitted with it as original equipment, that it is not possible to use it on other pumps or other submerged objects linked to the surface by a chain.

On connaít également par le document GB 2.095.208 un dispositif d'accrochage automatique réversible d'une chaíne ou analogue, permettant d'agripper la chaíne qui relie à la surface un objet immergé, en vue de pouvoir soulever et ramener en surface ledit objet ou inversement, ledit objet étant notamment une pompe immergée.Also known from GB 2,095,208 a device reversible automatic attachment of a chain or the like, allowing to grab the chain which connects to the surface an object submerged, in order to be able to lift and bring to the surface said object or vice versa, said object being in particular a pump submerged.

Ce dispositif comporte un corps tubulaire enfilé sur la chaíne et sur laquelle il peut coulisser pour venir, par gravité, au plus près de l'objet à soulever. Le corps tubulaire est suspendu par son extrémité supérieure à un moyen d'attache, et il comporte dans sa région médiane un moyen d'accrochage consistant en une fente semi-longitudinale dans laquelle la chaíne peut être bloquée lors du pivotement dudit corps tubulaire sous l'effet d'une traction sur un second moyen d'attache solidarisé à l'extrémité inférieure dudit corps tubulaire, en association avec un relâchement du premier moyen d'attache. This device comprises a tubular body threaded on the chain and on which it can slide to come, by gravity, to closer to the object to be lifted. The tubular body is suspended by its upper end to a means of attachment, and it has in its central region a means of hooking consisting in a semi-longitudinal slot in which the chain can be blocked during pivoting of said tubular body under the effect of traction on a second fastened means of attachment at the lower end of said tubular body, in combination with a loosening of the first attachment means.

L'opération de décrochage nécessite de réaliser une traction sur le premier moyen d'attache puis un relâchement du second moyen d'attache, afin d'obtenir le pivotement dans le sens inverse du corps tubulaire, qui alors libère la chaíne.The stall operation requires pulling on the first means of attachment then a relaxation of the second means of attachment, in order to obtain the pivoting in the opposite direction of tubular body, which then releases the chain.

Pour pouvoir pivoter, ce dispositif doit donc obligatoirement comporter deux moyens d'attache solidarisés au corps tubulaire de part et d'autre du moyen d'accrochage.To be able to pivot, this device must therefore necessarily include two attachment means secured to the tubular body on either side of the attachment means.

De plus, pour que le corps tubulaire puisse pivoter dans un sens comme dans l'autre, il est indispensable de parfaitement combiner les actions sur les premier et second moyen d'attache, et cela nécessite d'être de préférence à deux personnes pour réaliser la manoeuvre.In addition, so that the tubular body can pivot in one direction as in the other, it is essential to perfectly combine the actions on the first and second attachment means, and this requires preferably two people to perform the maneuver.

En effet, lors de la descente du corps tubulaire sur la chaíne, il convient que celui-ci demeure dans une position bien verticale pour éviter que son moyen d'accrochage ne s'encastre sur ladite chaíne, aussi il faut veiller à ce que le premier moyen d'attache soit constamment relâché lors de la descente.Indeed, during the descent of the tubular body on the chain, he should stay in a good position vertical to prevent its attachment means from becoming embedded on the said chain, also care must be taken that the first fastening means is constantly released during the descent.

De la même manière, lors de l'accrochage, il ne faut pas que le second moyen d'attache soit relâché trop tôt car il sert de point de fixation pour réaliser le pivotement du corps tubulaire. Par ailleurs, il convient également de veiller à également relâcher la chaíne lors du relâchement du second moyen d'attache.In the same way, when hanging, the second attachment is released too early because it serves attachment point for pivoting the body tubular. In addition, care should also be taken to also release the chain when the second means is released of attachment.

Aux divers inconvénients précités, il convient d'ajouter que lors de la remontée de l'objet immergé, une traction malencontreuse sur la chaíne, peut provoquer le pivotement du dispositif et son décrochage.To the various disadvantages mentioned above, it should be added that during the ascent of the submerged object, traction unfortunate on the chain, can cause the pivoting of the device and its stall.

La présente invention a pour but de remédier à ces inconvénients en proposant un dispositif d'accrochage automatique réversible d'une chaíne ou analogue, permettant des opérations de relevage et de mise en place aisées de tous objets immergés munis d'une chaíne, qui peuvent par exemple être réalisées par une seule personne.The object of the present invention is to remedy these drawbacks by proposing a reversible automatic hooking device a chain or the like, allowing lifting operations and easy installation of all submerged objects fitted with a chain, which can for example be carried out by a single person.

Le dispositif d'accrochage automatique réversible d'une chaíne ou analogue, dans le but notamment de permettre d'agripper une chaíne qui relie à la surface un objet immergé, en vue de pouvoir soulever et ramener en surface ledit objet ou inversement, selon la présente invention comporte un moyen de solidarisation à un engin de levage du type palan ou treuil, un moyen permettant de l'amener par gravité au plus près de l'objet immergé en étant guidé par la chaíne qui relie celui-ci à la surface, et il se caractérise essentiellement en ce qu'il comporte un moyen permettant de le verrouiller sur ladite chaíne sous la seule action d'une traction exercée par ledit engin de levage, et inversement de le déverrouiller sous la seule action d'une traction sur ladite chaíne.The reversible automatic hooking device for a chain or the like, in particular for the purpose of gripping a chain which connects a submerged object to the surface, with a view to ability to lift and bring said object to the surface or conversely, according to the present invention comprises a means of Securing to a hoist or hoist type lifting device, a means for bringing it by gravity as close as possible to the object immersed in being guided by the chain that connects it to the surface, and it is essentially characterized in that it includes a means for locking it on said chain under the sole action of a traction exerted by said lifting, and vice versa to unlock it under the sole action traction on said chain.

Selon une caractéristique additionnelle du dispositif selon l'invention, le moyen de verrouillage consiste en un élément mobile apte d'une part à s'escamoter lorsque ledit dispositif descend sur la chaíne, et d'autre part à se bloquer sur un maillon de ladite chaíne lors d'une traction exercée par l'engin de levage.According to an additional characteristic of the device according to the invention, the locking means consists of an element mobile able on the one hand to retract when said device descends on the chain, and on the other hand to hang on a link of said chain during traction exerted by the machine lifting.

Selon un mode de réalisation particulier du dispositif selon l'invention, le moyen permettant de l'amener par gravité au plus près de l'objet immergé en étant guidé par la chaíne qui relie celui-ci à la surface consiste en un élément tubulaire destiné à être enfilé sur la chaíne, tandis que le moyen de solidarisation à un engin de levage du type palan ou treuil consiste en une anse destinée à l'accrochage du crochet dudit engin de levage, et que le moyen de verrouillage consiste en un couvercle articulé sur le bord supérieur dudit élément tubulaire dans lequel est pratiquée, perpendiculairement à l'axe d'articulation dudit couvercle, une fente ouverte d'une largeur comprise entre le calibre et la largeur des maillons de ladite chaíne, et qui s'étend du bord dudit couvercle jusque dans la région centrale de celui-ci.According to a particular embodiment of the device according to the invention, the means for bringing it by gravity at most near the submerged object being guided by the chain that connects this on the surface consists of a tubular element intended to be threaded on the chain, while the securing means a hoist or winch type lifting device consists of a handle intended for hooking the hook of said lifting machine, and that the locking means consists of a cover articulated on the upper edge of said tubular element in which is practiced, perpendicular to the axis of articulation said cover, an open slot with a width between the size and width of the links in said chain, and which extends from the edge of said cover to the central region of it.

Lors de la descente par gravité sur la chaíne de l'élément tubulaire suspendu au crochet de l'engin de levage par l'intermédiaire de l'anse, le couvercle oscille entre une position fermée et ouverte au gré du passage des maillons de ladite chaíne selon que le maillon qui passe au niveau du couvercle se présente latéralement, c'est-à-dire qu'il peut entrer dans la fente et le couvercle peut se refermer, ou de face, dans ce cas le couvercle reste ouvert puisque ledit maillon ne peut pas entrer dans la fente. Lors d'une traction exercée par l'engin de levage, dès que le couvercle prend une position fermée il demeure dans cette position puisque bloqué supérieurement par un maillon se présentant de face, et l'objet immergé peut être relevé en une seule opération, la chaíne étant accrochée au plus près de celui-ci.When descending by gravity on the chain of the element tubular suspended from the hook of the lifting device by through the handle, the cover swings between a closed and open position as the links pass through said chain depending on whether the link passing at the cover is sideways, that is, it can enter the slot and the cover can close, or face, in this case the cover remains open since said link cannot enter the slot. During a pull exerted by the lifting device, as soon as the cover takes a closed position it remains in this position since blocked superiorly by a link presenting itself from the front, and the object submerged can be raised in a single operation, the chain being hung as close as possible to it.

Selon une particularité avantageuse du dispositif selon l'invention, l'extrémité libre de la fente est évasée afin de faciliter le passage d'un maillon à un autre lors de la descente.According to an advantageous feature of the device according to the invention, the free end of the slot is flared in order to facilitate the transition from one link to another during the descent.

Selon une autre particularité avantageuse du dispositif selon l'invention, le couvercle comporte supérieurement de part et d'autre de l'extrémité de la fente un biseau facilitant l'engagement dudit couvercle sous le maillon qui va le maintenir fermé.According to another advantageous feature of the device according to the invention, the cover comprises on the upper part and at the other end of the slot a bevel facilitating the engagement of said cover under the link which will maintain it closed.

Selon une autre particularité avantageuse du dispositif selon l'invention, le couvercle est lesté en sorte de privilégier la position fermée.According to another advantageous feature of the device according to the invention, the cover is ballasted so as to favor the closed position.

Egalement de manière avantageuse, le bord supérieur de l'élément tubulaire est coupé en biseau tandis que le couvercle lui est articulé du côté le plus bas, en sorte que le maillon engagé dans la fente vienne, sous l'effet de la traction, en butée dans le fond de celle-ci, lequel fond est de préférence disposé de telle manière que la chaíne soit centrée sur le couvercle lors du verrouillage.Also advantageously, the upper edge of the element tubular is cut at a bevel while the cover is articulated on the lowest side, so that the engaged link in the slot comes, under the effect of the traction, in abutment in the bottom thereof, which bottom is preferably arranged with so that the chain is centered on the cover when locking.

Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente un mode de réalisation non limitatif.The advantages and characteristics of the present invention will emerge more clearly from the description which follows and which refers to the accompanying drawing, which represents a method of non-limiting realization.

Dans le dessin annexé :

  • la figure 1 représente une vue en perspective partielle du dispositif d'accrochage automatique d'une chaíne selon l'invention.
  • la figure 2 représente une vue en élévation et en coupe partielle selon un plan vertical médian du même dispositif lors d'une étape d'accrochage d'une chaíne.
  • la figure 2a représente une vue partielle en élévation, perpendiculairement au plan de coupe de la figure 2, et qui correspond à la même étape d'accrochage d'une chaíne.
  • la figure 3 représente une vue en élévation et en coupe partielle selon un plan vertical médian du même dispositif lors d'une autre étape d'accrochage d'une chaíne.
  • la figure 3a représente une vue partielle en élévation, perpendiculairement au plan de coupe de la figure 3, et qui correspond à la même étape d'accrochage d'une chaíne.
  • la figure 4 représente une vue en élévation et en coupe partielle selon un plan vertical médian du même dispositif lors d'une étape d'accrochage d'une chaíne.
  • la figure 4a représente une vue partielle en élévation, perpendiculairement au plan de coupe de la figure 4, et qui correspond à la même étape d'accrochage d'une chaíne.
In the attached drawing:
  • Figure 1 shows a partial perspective view of the automatic attachment device of a chain according to the invention.
  • 2 shows an elevational view in partial section along a vertical median plane of the same device during a step of hooking a chain.
  • Figure 2a shows a partial elevational view, perpendicular to the section plane of Figure 2, and which corresponds to the same step of hooking a chain.
  • Figure 3 shows an elevational view in partial section along a vertical median plane of the same device during another step of hooking a chain.
  • Figure 3a shows a partial elevational view, perpendicular to the section plane of Figure 3, and which corresponds to the same step of hooking a chain.
  • Figure 4 shows an elevational view in partial section along a vertical median plane of the same device during a step of hooking a chain.
  • Figure 4a shows a partial elevational view, perpendicular to the section plane of Figure 4, and which corresponds to the same step of hooking a chain.

En référence à la figure 1, on peut voir un dispositif d'accrochage 1 selon l'invention, celui-ci comporte un élément tubulaire 2 dont le bord supérieur 20 est incliné par rapport à l'axe de l'élément tubulaire 2, et auquel est solidarisée extérieurement une anse 21 destinée à l'accrochage à un engin de levage du type palan ou treuil, non représenté.Referring to Figure 1, we can see a device 1 according to the invention, this comprises an element tubular 2 whose upper edge 20 is inclined relative to the axis of the tubular element 2, and to which is secured externally a handle 21 intended for attachment to a hoist or winch type lifting, not shown.

L'élément tubulaire 2 comporte extérieurement, du côté le plus bas du bord 20, une chape 22 traversée par un pivot 23 sur lequel s'articule un couvercle 3 apte à couvrir le bord 20 de l'élément 2.The tubular element 2 has externally, on the most bottom of the edge 20, a yoke 22 crossed by a pivot 23 on which is articulated a cover 3 able to cover the edge 20 of item 2.

Le couvercle 3 consiste en une plaque 30 prolongée par une poignée 31 à laquelle est solidarisée inférieurement une rondelle 32 traversée par le pivot 23. La plaque 30 présente une fente 33 pratiquée dans le prolongement de la poignée, c'est-à-dire perpendiculairement au pivot 23, et qui s'ouvre en bordure de la plaque 30.The cover 3 consists of a plate 30 extended by a handle 31 to which is secured below a washer 32 traversed by the pivot 23. The plate 30 has a slot 33 made in the extension of the handle, that is to say perpendicular to pivot 23, and which opens at the edge of plate 30.

La fente 33 est d'une largeur comprise entre le calibre et la largeur des maillons d'une chaíne, non représentée, sur laquelle le dispositif 1 est destiné à être adapté. La largeur de fente 33 est toutefois plus proche du calibre du maillon que de sa largeur.The slot 33 is of a width between the caliber and the width of the links of a chain, not shown, on which the device 1 is intended to be adapted. Slit width 33 is however closer to the caliber of the link than to its width.

On peut remarquer qu'au niveau de l'extrémité de la fente 33 celle-ci présente un évasement 34, et que la plaque 30 présente supérieurement un biseau 35.It can be noted that at the end of the slot 33 it has a flare 34, and that the plate 30 has superiorly a bevel 35.

Par ailleurs, on notera que le couvercle 3 est équilibré de manière à privilégier la position fermée. Furthermore, it will be noted that the cover 3 is balanced by so as to favor the closed position.

Si on se réfère maintenant aux figures 2, 2a, 3, 3a, 4 et 4a, on peut voir le dispositif 1 selon l'invention adapté sur une chaíne 4 constituée de manière traditionnelle de maillons 40 en forme d'anneau oblong, et qui est destinée à être fixée de manière robuste par une extrémité à un objet immergé, par exemple une pompe, tandis que l'autre extrémité est fixée en surface.If we now refer to Figures 2, 2a, 3, 3a, 4 and 4a, we can see the device 1 according to the invention adapted on a chain 4 traditionally made up of 40 links in oblong ring shape, and which is intended to be fixed robustly by one end to a submerged object, by example a pump, while the other end is fixed in area.

Le dispositif d'accrochage 1 selon l'invention est enfilé sur la chaíne 4, celle-ci passant dans l'élément tubulaire 2. Dans cette phase, la chaíne 4 est maintenue tendue tandis que le dispositif d'accrochage 1 descend par gravité ce qui provoque une oscillation 0 du couvercle au gré du passage des maillons 40 dans la fente 33. En effet quand un maillon 40 au droit du couvercle est disposé de côté il peut s'insérer dans la fente 33 et le couvercle peut donc descendre, comme cela est représenté sur la figure 2, par contre lorsqu'un maillon 40 se présente de face, il ne peut pas pénétrer dans la fente 33 en sorte que le couvercle se soulève, comme cela est représenté sur la figure 3.The attachment device 1 according to the invention is threaded onto the chain 4, this passing through the tubular element 2. In this phase, the chain 4 is kept taut while the hanging device 1 descends by gravity which causes an oscillation 0 of the cover according to the passage of the links 40 in the slot 33. Indeed when a link 40 to the right of the cover is placed aside it can be inserted into the slot 33 and the cover can therefore go down, as shown in FIG. 2, on the other hand when a link 40 presents itself face, it cannot penetrate into slot 33 so that the cover is lifted, as shown in Figure 3.

Sur les figures 2 et 2a un maillon 401 se présentant de côté est engagé dans la fente 33, du fait du déplacement vers le bas, selon la flèche A, de l'élément tubulaire 2 on observe un déplacement relatif vers le haut de la chaíne 4, en sorte que le maillon 402 placé immédiatement en dessous du maillon 401 et qui se présente de face, prend appui sous le couvercle 3 et le soulève.In FIGS. 2 and 2a a link 401 presenting itself from the east side engaged in the slot 33, due to the downward movement, according to arrow A, of the tubular element 2 there is a relative upward movement of the chain 4, so that the link 402 placed immediately below link 401 and which presents itself from the front, is supported under the cover 3 and the raises.

On notera que l'évasement 34 et le biseau 35 ont pour but de permettre au couvercle 3 de passer de part et d'autre de la base du maillon 403 placé immédiatement au-dessus du maillon 401 et qui se présente de face.Note that the flare 34 and the bevel 35 are intended to allow cover 3 to pass on either side of the base link 403 placed immediately above link 401 and which is presented from the front.

Sur les figures 3 et 3a, le couvercle 3 est soulevé complètement par le maillon 402 et va longer celui-ci jusqu'à retomber sur le maillon 404 placé immédiatement en dessous du maillon 402 et qui se présente de côté en sorte qu'il peut pénétrer dans la fente 33. On notera que du fait de la vitesse de descente de l'élément tubulaire 2 et de la résistance exercée par l'élément liquide, le couvercle 3 n'a normalement pas le temps de se refermer.In Figures 3 and 3a, the cover 3 is lifted completely by the link 402 and will go along it until it falls on the link 404 placed immediately below link 402 and which comes sideways so that it can enter the slot 33. Note that due to the descent speed of tubular element 2 and the resistance exerted by the element liquid, cover 3 does not normally have time to close.

On notera également que lorsque le couvercle 3 longe un maillon 40 qui se présente de face, tel que le maillon 402, celui-ci prend place dans l'évasement 34 ce qui permet de réaliser un guidage et de centrer la chaíne 4.It will also be noted that when the cover 3 runs along a link 40 which is presented from the front, such as the link 402, this takes place in the flare 34 which allows for a guide and center the chain 4.

Lorsque l'élément tubulaire 2 est arrivé à proximité de l'objet immergé à soulever, on stoppe sa descente, puis on amorce une traction T sur l'anse 21 en sorte que le mouvement relatif de descente de la chaíne 4 entraíne la fermeture du couvercle 3 jusqu'à ce que, comme cela est représenté sur les figures 4 et 4a, un maillon 40 disposé de face, tel que le maillon 405, vienne prendre appui par sa partie inférieure contre le couvercle 3, tandis que le maillon 406 placé immédiatement en dessous du maillon 405 et qui se présente de côté, engagé dans la fente 33, interdit la rotation de la chaíne 4.When the tubular element 2 has arrived near the object submerged in lifting, we stop its descent, then we start a traction T on the handle 21 so that the relative movement of descent of the chain 4 causes the cover 3 to close until, as shown in Figures 4 and 4a, a link 40 arranged from the front, such as the link 405, come to rest by its lower part against the cover 3, while the link 406 placed immediately in below the link 405 and which is presented from the side, engaged in the slot 33, prohibits the rotation of the chain 4.

On notera que le verrouillage du couvercle 3 sur la chaíne 4 peut être obtenu en tirant un coup sec sur l'élément tubulaire 2, ou plus précisément sur l'élément filaire de l'engin de levage.It will be noted that the locking of the cover 3 on the chain 4 can be obtained by tapping the tubular element 2, or more precisely on the wire element of the lifting.

L'élément tubulaire 2 étant solidarisé à la chaíne 4, l'objet immergé, non représenté, peut être soulevé et ramené à la surface en une seule opération de levage par traction sur l'anse 21.The tubular element 2 being secured to the chain 4, the object submerged, not shown, can be lifted and brought to the surface in a single lifting operation by pulling on the handle 21.

On notera que l'inclinaison du bord 40 et donc du couvercle 3 par rapport à l'axe de l'élément tubulaire 2 permet à la chaíne 4 de venir en butée contre le fond 36 de la fente 33 de manière à centrer la chaíne 4 dans l'élément tubulaire 2 et donc avec l'engin de levage fixé à l'anse 21, la longueur de la fente 33 étant bien entendu fonction des dimensions des maillons 40.It will be noted that the inclination of the edge 40 and therefore of the cover 3 relative to the axis of the tubular element 2 allows the chain 4 to abut against the bottom 36 of the slot 33 so to center the chain 4 in the tubular element 2 and therefore with the lifting device fixed to the handle 21, the length of the slot 33 being of course a function of the dimensions of the links 40.

Le déverrouillage du dispositif selon l'invention est réalisé alors qu'il n'est plus sous tension, en appuyant sur la poignée 31 pour soulever le couvercle 3.The device according to the invention is unlocked while it is no longer energized, by pressing the handle 31 to lift the cover 3.

On notera que, contrairement au dispositif du document GB 2.095.208, un déverrouillage inopiné par une traction malencontreuse sur la chaíne 4 est impossible tant qu'est exercée une tension.It will be noted that, unlike the device of the GB document 2.095.208, an unexpected release by a pull unfortunate on channel 4 is impossible as long as is exerted a tension.

Lors de la mise en place d'une pompe, ou de tout autre objet immergé, le dispositif d'accrochage 1 est verrouillé sur la chaíne à proximité du point de fixation de celle-ci sur la pompe, laquelle est mise en place en une seule opération. Lorsque la pompe est en place on exerce une traction sèche sur la chaíne 4 ce qui permet d'ouvrir le couvercle 3 et de le faire basculer au-delà de la verticale de l'axe 23, en sorte qu'il ne gêne pas le coulissement de l'élément tubulaire 2 sur la chaíne 4. Par ailleurs, lors de la remontée du dispositif d'accrochage 1, l'effort exercé par l'élément liquide sur le couvercle 3 maintient celui-ci ouvert.When installing a pump, or any other object submerged, the hanging device 1 is locked on the chain near its attachment point on the pump, which is set up in a single operation. When the pump is in place, dry traction is exerted on the chain 4 which allows to open the cover 3 and do it tilt beyond the vertical of axis 23, so that it does not does not interfere with the sliding of the tubular element 2 on the chain 4. In addition, when reassembling the hanging device 1, the force exerted by the liquid element on the cover 3 keeps it open.

De manière avantageuse, la chaíne 4 peut être remplacée par un élément de liaison constitué d'un câble à une extrémité duquel est solidarisée une chaíne de petite longueur fixée à l'objet immergé, et d'une longueur suffisante à l'accrochage du dispositif selon l'invention.Advantageously, the chain 4 can be replaced by a connecting element consisting of a cable at one end of which is joined a short chain attached to the object submerged, and of sufficient length to hang the device according to the invention.

Outre l'avantage de ne nécessiter qu'un petit morceau de chaíne, un tel élément de liaison permet une descente plus rapide du dispositif selon l'invention, puisque la partie câble ne présente pas de reliefs susceptibles de le freiner.Besides the advantage of requiring only a small piece of chain, such a connecting element allows a faster descent of the device according to the invention, since the cable part does not presents no reliefs likely to slow it down.

Claims (8)

Dispositif d'accrochage automatique réversible d'une chaíne ou analogue, dans le but notamment de permettre d'agripper une chaíne qui relie à la surface un objet immergé, en vue de pouvoir soulever et ramener en surface ledit objet ou inversement, comportant un moyen (21) de solidarisation à un engin de levage du type palan ou treuil, et un moyen (2) permettant de l'amener par gravité au plus près de l'objet immergé en étant guidé par la chaíne (4) qui relie celui-ci à la surface, caractérisé en ce qu'il comporte un moyen (3) permettant de le verrouiller sur ladite chaíne (4) sous la seule action d'une traction exercée par ledit engin de levage, et inversement de le déverrouiller sous la seule action d'une traction sur ladite chaíne (4).Reversible automatic hooking device for a chain or the like, in particular for the purpose of gripping a chain which connects a submerged object to the surface, with a view to ability to lift and bring said object to the surface or conversely, comprising a means (21) for securing to a lifting device of the hoist or winch type, and a means (2) allowing it to be brought by gravity as close as possible to the object submerged while being guided by the chain (4) which connects it to the surface, characterized in that it comprises a means (3) allowing it to be locked on said chain (4) under the sole action of a traction exerted by said lifting machine, and conversely to unlock it under the sole action of a traction on said chain (4). Dispositif selon la revendication 1, caractérisé en ce que le moyen de verrouillage consiste en un élément mobile (3) apte d'une part à s'escamoter lorsque ledit dispositif (1) descend sur la chaíne (4), et d'autre part à se bloquer sur un maillon (405) de ladite chaíne (4) lors d'une traction exercée par l'engin de levage.Device according to claim 1, characterized in that the locking means consists of a movable element (3) capable on the one hand to retract when said device (1) descends on the chain (4), and on the other hand to hang on a link (405) of said chain (4) during a traction exerted by the lifting gear. Dispositif selon la revendication 1 ou la revendication 2, caractérisé en ce que le moyen permettant de l'amener par gravité au plus près de l'objet immergé en étant guidé par la chaíne (4) qui relie celui-ci à la surface consiste en un élément tubulaire (2) destiné à être enfilé sur la chaíne (4), tandis que le moyen de solidarisation à un engin de levage du type palan ou treuil consiste en une anse (21) destinée à l'accrochage du crochet dudit engin de levage, et que le moyen de verrouillage consiste en un couvercle (3) articulé en périphérie dans lequel est pratiquée, perpendiculairement à l'axe d'articulation, une fente ouverte (33) d'une largeur comprise entre le calibre et la largeur des maillons (40) de ladite chaíne (4), et qui s'étend du bord dudit couvercle (3) jusque dans la région centrale de celui-ci.Device according to claim 1 or claim 2, characterized in that the means for bringing it by gravity as close as possible to the submerged object while being guided by the chain (4) which connects it to the surface consists of a tubular element (2) intended to be threaded on the chain (4), while the means of securing to a lifting device of the type hoist or winch consists of a handle (21) intended to the hooking of the hook of said lifting machine, and that the means locking consists of a cover (3) hinged in periphery in which is practiced, perpendicular to the hinge pin, an open slot (33) of a width between the size and the width of the links (40) of said chain (4), and which extends from the edge of said cover (3) right down to the central region of it. Dispositif selon la revendication 3, caractérisé en ce que l'extrémité libre (34) de la fente (33) est évasée afin de faciliter le passage d'un maillon un autre.Device according to claim 3, characterized in that the free end (34) of the slot (33) is flared in order to facilitate the passage from one link to another. Dispositif selon la revendication 3 ou la revendication 4, caractérisé en ce que le couvercle (3) comporte supérieurement de part et d'autre de l'extrémité de la fente (33) un biseau (35) facilitant l'engagement dudit couvercle (3) sous le maillon (405) qui va le maintenir fermé.Device according to claim 3 or claim 4, characterized in that the cover (3) has above on either side of the end of the slot (33) a bevel (35) facilitating the engagement of said cover (3) under the link (405) which will keep it closed. Dispositif selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le couvercle (3) est lesté en sorte de privilégier la position fermée.Device according to any one of Claims 3 to 5, characterized in that the cover (3) is ballasted so that favor the closed position. Dispositif selon l'une quelconque des revendications 3 à 6, caractérisé en ce que le bord supérieur (20) de l'élément tubulaire (2) est coupé en biseau tandis que le couvercle (3) lui est articulé du côté le plus bas, en sorte que le maillon (406) engagé dans la fente (33) vienne, sous l'effet de la traction, en butée dans le fond (36) de celle-ci, lequel fond (36) est de préférence disposé de telle manière que la chaíne (4) soit centrée sur le couvercle (3) lors du verrouillage.Device according to any one of Claims 3 to 6, characterized in that the upper edge (20) of the element tubular (2) is cut at a bevel while the cover (3) it is articulated on the lowest side, so that the link (406) engaged in the slot (33) comes, under the effect of the traction, in abutment in the bottom (36) thereof, which bottom (36) is preferably arranged in such a way that the chain (4) is centered on the cover (3) during locking. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est destiné à être associé à un élément de liaison comprenant un câble à une extrémité duquel est solidarisée une chaíne de petite longueur fixée à l'objet immergé, et d'une longueur suffisante à l'accrochage dudit dispositif.Device according to any one of the claims previous, characterized in that it is intended to be associated to a connecting element comprising a cable at one end which is joined a short chain attached to the submerged object, and of sufficient length for hanging of said device.
EP00440086A 1999-03-24 2000-03-23 Automatic reversible coupling device for a chain and the like which connects an underwater object to the surface Withdrawn EP1038822A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9903773A FR2791336B1 (en) 1999-03-24 1999-03-24 DEVICE FOR AUTOMATIC REACHING OF A CHAIN OR THE LIKE THAT CONNECTS TO THE SURFACE AN UNDERWATER OBJECT
FR9903773 1999-03-24

Publications (1)

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EP1038822A1 true EP1038822A1 (en) 2000-09-27

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FR (1) FR2791336B1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603850A1 (en) * 1976-02-02 1977-08-04 Sander & Sohn Maschf Safety catch for anchor chain - has forked jaws to grip links on both sides without shearing force
GB2095208A (en) * 1981-01-23 1982-09-29 Farrer Wallwin International L Method of and device for lifting loads
DE3314051C1 (en) * 1983-04-19 1984-08-16 Albert 5204 Lohmar Blum Lifting device for electric submersible pump units
US4496181A (en) * 1981-05-07 1985-01-29 Itt Industries, Inc. Method and a device for lifting and lowering of a load
FR2601322A1 (en) * 1986-07-08 1988-01-15 Emh Linkage-chain locking device
GB2301081A (en) * 1995-05-22 1996-11-27 Entecon Ltd Lifting Apparatus
EP0775663A1 (en) * 1995-11-22 1997-05-28 ITT Flygt Aktiebolag Device for manipulating submersible apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603850A1 (en) * 1976-02-02 1977-08-04 Sander & Sohn Maschf Safety catch for anchor chain - has forked jaws to grip links on both sides without shearing force
GB2095208A (en) * 1981-01-23 1982-09-29 Farrer Wallwin International L Method of and device for lifting loads
US4496181A (en) * 1981-05-07 1985-01-29 Itt Industries, Inc. Method and a device for lifting and lowering of a load
DE3314051C1 (en) * 1983-04-19 1984-08-16 Albert 5204 Lohmar Blum Lifting device for electric submersible pump units
FR2601322A1 (en) * 1986-07-08 1988-01-15 Emh Linkage-chain locking device
GB2301081A (en) * 1995-05-22 1996-11-27 Entecon Ltd Lifting Apparatus
EP0775663A1 (en) * 1995-11-22 1997-05-28 ITT Flygt Aktiebolag Device for manipulating submersible apparatus

Also Published As

Publication number Publication date
FR2791336A1 (en) 2000-09-29
FR2791336B1 (en) 2001-06-01

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