EP2751011B1 - Device for handling a load - Google Patents

Device for handling a load Download PDF

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Publication number
EP2751011B1
EP2751011B1 EP12758580.0A EP12758580A EP2751011B1 EP 2751011 B1 EP2751011 B1 EP 2751011B1 EP 12758580 A EP12758580 A EP 12758580A EP 2751011 B1 EP2751011 B1 EP 2751011B1
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EP
European Patent Office
Prior art keywords
load
indicator element
screw
screwing
handling device
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EP12758580.0A
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German (de)
French (fr)
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EP2751011A1 (en
Inventor
Pascal BOISSON
Patrice RAYMOND
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Safran Nacelles SAS
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Aircelle SA
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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

  • a hoist ring generally comprises a substantially U-shaped ring, closed by a base on which is positioned a threaded hole, receiving a screw on which is fixed the load to handle.
  • the second screw indicator element 7 is intended to be mounted on the first screw indicator element 6.
  • the tubular sleeve 10 necessarily has a diameter greater than that of the tubular body 8.
  • FIG 6 illustrates an operation of the handling device according to the invention in so-called tight position, a position corresponding to a situation in which the handling device is sufficiently screwed to the part to be handled, that is to say that the depth of anchoring of the screw 5 in the load C is now sufficient to ensure that the part to be handled can not be torn off during the handling phase of the load C.

Description

La présente invention se rapporte à un dispositif de manutention industrielle de charge.The present invention relates to an industrial load handling device.

Généralement, lors d'opérations de manutention, les charges sont déplacées au moyen d'un dispositif de maintien de la charge fixé à l'extrémité d'une élingue de levage reliée à un engin de levage tel qu'un treuil de levage, assurant le levage d'une charge depuis une position basse vers une position haute, et inversement.Generally, during handling operations, the loads are displaced by means of a load-holding device attached to the end of a lifting sling connected to a hoist such as a hoist winch, assuring lifting a load from a low position to a high position, and vice versa.

Ces dispositifs de maintien sont constitués d'une manière générale d'une manille de levage ou d'un anneau de levage bien connus de l'homme du metier, comme par exemple dans le document FR2880084 A1 .These holding devices are generally constituted by a lifting shackle or lifting ring which are well known to those skilled in the art, as for example in the document FR2880084 A1 .

Les anneaux ou manilles de levage constituent un accessoire de levage associé au dispositif de levage et ont pour but d'assurer la liaison entre l'élingue de levage reliée à l'engin de levage et la pièce à manutentionner.Lifting rings or shackles constitute a lifting accessory associated with the lifting device and are intended to ensure the connection between the lifting sling connected to the hoist and the part to be handled.

Ils sont conçus et conformés pour résister aux travaux engendrés par le déplacement en hauteur de la charge qu'ils soutiennent.They are designed and shaped to withstand the work caused by the displacement of the load they support.

Un anneau de levage comprend généralement un anneau sensiblement en forme de U, fermé par une embase sur laquelle est positionné un trou taraudé, recevant une vis sur laquelle on vient fixer la charge à manutentionner.A hoist ring generally comprises a substantially U-shaped ring, closed by a base on which is positioned a threaded hole, receiving a screw on which is fixed the load to handle.

Cette fixation consiste en un vissage effectué directement sur la face supérieure de la charge. Ce vissage est typiquement réalisé à la main par un opérateur, qui visse l'anneau de levage sur la charge, puis relie l'extrémité libre de l'élingue à la partie en U dudit anneau pour entraîner le déplacement de la charge lors de l'actionnement de l'engin de levage.This attachment consists of a screwing done directly on the upper face of the load. This screwing is typically done by hand by an operator, which screws the lifting ring on the load, then connects the free end of the sling to the U-shaped portion of said ring to cause the displacement of the load during the actuation of the hoist.

Une fois l'anneau de levage vissé sur la charge, l'opérateur doit s'assurer avant d'actionner l'engin de levage que l'ancrage de la vis dans la charge est suffisant.Once the hoist ring is screwed onto the load, the operator must make sure before anchoring the hoist that anchoring the screw in the load is sufficient.

Cette vérification est typiquement réalisée selon les recommandations du fabricant de la longueur d'ancrage nécessaire en fonction du poids de la pièce à manutentionner.This check is typically performed according to the recommendations of the manufacturer of the necessary anchorage length depending on the weight of the part to be handled.

Cependant, le vissage et les vérifications étant effectuées manuellement, peuvent comporter certains risques, comme notamment celui de ne pas avoir ancré suffisamment de longueur de vis dans la charge à manutentionner, pouvant entraîner l'arrachement de ladite charge de son anneau de levage.However, the screwing and verifications being carried out manually, may involve certain risks, such as in particular that of not having anchored enough length of screw in the load to handle, which can cause the lifting of said load of its lifting ring.

Un but de la présente invention est de pallier à ces inconvénients, en s'assurant, au moyen d'un dispositif simple de fabrication, que l'ancrage de la vis dans la charge à manutentionner est suffisant.An object of the present invention is to overcome these disadvantages by ensuring, by means of a simple manufacturing device, that the anchoring of the screw in the load to be handled is sufficient.

A cet effet, l'invention propose un dispositif de manutention d'une charge pourvue d'au moins un filetage comprenant un ensemble de vis pourvu de moyens de préhension et apte à assurer une liaison avec ladite charge, ledit dispositif étant remarquable en ce qu'il comprend :

  • un premier élément indicateur de vissage solidaire dudit ensemble de vis ;
  • un deuxième élément indicateur de vissage mobile au moins en translation par rapport audit premier élément, et
  • des moyens de rappel élastique,
lesdits moyens de rappel élastique étant interposés entre le premier élément indicateur de vissage et le deuxième élément indicateur de vissage et ayant pour effet de rappeler en butée contre la charge le deuxième élément indicateur de vissage, de sorte qu'une coïncidence entre les deux éléments indicateur de vissage soit représentative d'un vissage suffisant du dispositif de manutention sur ladite charge.For this purpose, the invention proposes a device for handling a load provided with at least one thread comprising a set of screws provided with gripping means and able to ensure a connection with said load, said device being remarkable in that 'He understands :
  • a first screw indicator element integral with said set of screws;
  • a second mobile screw indicator element at least in translation relative to said first element, and
  • elastic return means,
said elastic return means being interposed between the first screw indicator element and the second screw indicator element and having the effect of abutting against the load the second screw indicator element, so that a coincidence between the two indicator elements screwing is representative of a sufficient screwing of the handling device on said load.

La présente invention permet de contrôler rapidement et visuellement que la profondeur d'ancrage de la vis dans la charge à manutentionner sera suffisante.The present invention makes it possible to control quickly and visually that the depth of anchoring of the screw in the load to be handled will be sufficient.

Lorsque coïncident les éléments indicateurs de vissage, l'opérateur est assuré que la charge est correctement fixée à l'anneau de levage, de sorte qu'elle ne pourra pas s'arracher dans des conditions normales d'utilisation de l'engin de levage. Lorsque la vis n'est en revanche pas suffisamment ancrée dans la charge à soulever, par exemple lorsque l'opérateur n'a pas assez vissé de profondeur de vis, ou alors lorsque la vis s'est malencontreusement desserrée du trou de la charge, les éléments indicateur de vissage ne correspondent pas ; l'opérateur est alors informé rapidement grâce à une simple vérification visuelle que la profondeur d'ancrage de la vis n'est pas suffisante et que, par conséquent, la charge n'est pas bien maintenue et risque de s'arracher lors de son levage et de son déplacement en altitude.When the screw indicator elements coincide, the operator is assured that the load is correctly attached to the lifting ring, so that it can not tear under normal conditions of use of the lifting gear . When the screw is however not sufficiently anchored in the load to be lifted, for example when the operator has not screwed enough depth of screw, or when the screw has inadvertently loosened the hole of the load, the screw indicator elements do not match; the operator is then quickly informed by a simple visual check that the depth of anchoring of the screw is not sufficient and that, therefore, the load is not well maintained and may tear during his lifting and its displacement at altitude.

De manière avantageuse, le deuxième élément indicateur de vissage renferme les moyens de rappel élastique.Advantageously, the second screw indicator element encloses the elastic return means.

Grâce à cette caractéristique de l'invention, ces moyens de rappel élastique sont protégés des éventuels chocs lors de la phase de levage ou de déplacement de la charge.Thanks to this feature of the invention, these elastic return means are protected from possible shocks during the lifting phase or displacement of the load.

Par ailleurs, selon une autre caractéristique de l'invention, le deuxième élément indicateur de vissage comprend au moins une zone conformée pour recouvrir en totalité le premier élément indicateur de vissage lorsque ledit deuxième élément indicateur de vissage se trouve en butée contre la charge et que le vissage entre le dispositif de manutention et ladite charge est suffisant.Furthermore, according to another characteristic of the invention, the second screw indicator element comprises at least one zone shaped to completely cover the first screw indicator element when said second screw indicator element is in abutment with the load and that the screwing between the handling device and said load is sufficient.

Cette disposition permet de s'assurer grâce à une vérification visuelle rapide que l'anneau de levage est effectivement bien fixé à la charge.This arrangement makes it possible to ensure, thanks to a quick visual check, that the lifting ring is indeed secured to the load.

Selon une autre caractéristique de l'invention, le dispositif de manutention selon l'invention comprend des moyens de préhension formant un anneau sensiblement en forme de U fermé par une embase, ladite embase étant pourvue d'au moins un trou taraudé apte à recevoir au moins une vis sur le corps de laquelle le premier élément indicateur de vissage est monté.According to another characteristic of the invention, the handling device according to the invention comprises gripping means forming a substantially U-shaped ring closed by a base, said base being provided with at least one tapped hole adapted to receive at at least one screw on the body of which the first screw indicator element is mounted.

Selon une caractéristique intéressante du dispositif selon l'invention, les premier et deuxième éléments indicateurs de vissage sont de couleurs différentes.According to an interesting feature of the device according to the invention, the first and second screw indicator elements are of different colors.

Cette disposition a l'avantage de permettre à l'utilisateur grâce à une rapide vérification visuelle de savoir si l'anneau est convenablement fixé sur la charge à déplacer. Si la couleur représentant le premier élément indicateur de vissage reste visible alors que l'anneau de levage a été monté sur la charge à déplacer, l'utilisateur est immédiatement informé du mauvais serrage dudit anneau sur ladite charge.This arrangement has the advantage of allowing the user through a quick visual check to know if the ring is properly attached to the load to move. If the color representing the first screw indicator element remains visible while the lifting ring has been mounted on the load to be moved, the user is immediately informed of the incorrect tightening of said ring on said load.

D'autres caractéristiques, buts et avantages de la présente invention, apparaîtront à la lecture de la description détaillée qui va suivre, selon les modes de réalisation donnés à titre d'exemples non limitatifs, et en référence aux dessins annexés sur lesquels :

  • la figure 1 représente une vue en perspective du dispositif de manutention selon l'invention relié en une de ses extrémités à une élingue de levage et en son autre extrémité à la charge à manutentionner ;
  • la figure 2 est une vue en plan du dispositif de manutention selon l'invention;
  • la figure 3 est un vue en plan du premier élément indicateur de vissage ;
  • la figure 4 est un vue en plan du deuxième élément indicateur de vissage;
  • la figure 5 est une vue en coupe du dispositif de manutention selon l'invention, en position de repos ;
  • la figure 6 est une vue en coupe du dispositif de manutention selon l'invention, en position serrée.
Other characteristics, objects and advantages of the present invention will appear on reading the following detailed description, according to the embodiments given as non-limiting examples, and with reference to the appended drawings in which:
  • the figure 1 represents a perspective view of the handling device according to the invention connected at one of its ends to a lifting sling and at its other end to the load to be handled;
  • the figure 2 is a plan view of the handling device according to the invention;
  • the figure 3 is a plan view of the first screw indicator element;
  • the figure 4 is a plan view of the second screw indicator element;
  • the figure 5 is a sectional view of the handling device according to the invention, in the rest position;
  • the figure 6 is a sectional view of the handling device according to the invention, in a tight position.

Sur l'ensemble des figures, des références identiques ou analogues désignent des organes ou ensembles d'organes identiques ou analogues.Throughout the figures, identical or similar references designate the same or similar organs or sets of members.

Par ailleurs, dans la présente description, sont utilisés des mots tels que « supérieur » et « inférieur », par référence à la position du dispositif de manutention lorsque celui-ci est en position verticale, c'est-à-dire vissé ou prêt à être vissé sur la charge à manutentionner.Furthermore, in the present description, words such as "upper" and "lower" are used, with reference to the position of the handling device when it is in a vertical position, that is to say screwed or ready to be screwed on the load to be handled.

En se référant à la figure 1, un dispositif de manutention 1 selon l'invention assure la liaison entre une élingue de levage 2 et la charge C à manutentionner.Referring to the figure 1 , a handling device 1 according to the invention ensures the connection between a lifting sling 2 and the load C to be handled.

L'élingue de levage est reliée à un engin de levage (non représenté) tel que, par exemple, un treuil de levage. Une élingue de levage est typiquement constituée par un ou plusieurs câble(s) relié(s) au dispositif de manutention selon l'invention. Un tel câble est, de manière connue, réalisé en acier.The lifting sling is connected to a hoist (not shown) such as, for example, a hoist winch. A lifting sling is typically constituted by one or more cable (s) connected (s) to the handling device according to the invention. Such a cable is, in known manner, made of steel.

D'une manière générale, lorsque l'on souhaite soulever et déplacer une charge d'un point bas vers un point haut, un opérateur vient visser l'anneau de levage directement sur la face supérieure de la charge pourvue d'un ou plusieurs trou(s) taraudé(s). L'anneau de levage, jusqu'à présent uniquement relié à la charge, est alors prêt à recevoir une élingue de levage destinée à être reliée à un engin de levage.In general, when it is desired to lift and move a load from a low point to a high point, an operator screw the lifting ring directly on the upper face of the load provided with one or more holes (s) tapped. The lifting ring, hitherto only connected to the load, is then ready to receive a lifting sling to be connected to a hoist.

Le dispositif de manutention 1 selon l'invention est apte à résister à la traction et est typiquement réalisé en acier ou en tout autre matériau résistant à la traction et connu de l'homme du métier.The handling device 1 according to the invention is able to withstand traction and is typically made of steel or any other material resistant to traction and known to those skilled in the art.

En référence à la figure 2, le dispositif de manutention 1 selon l'invention comprend en sa partie supérieure des moyens de préhension tels qu'un anneau 3 sensiblement en forme de U, destiné à être relié à un engin de levage par l'intermédiaire d'une élingue de levage.With reference to the figure 2 , the handling device 1 according to the invention comprises at its upper part gripping means such as a ring 3 substantially U-shaped, intended to be connected to a hoist by means of a lifting sling.

L'anneau 3 est fermé en sa partie inférieure par une embase 4 comportant dans une direction sensiblement perpendiculaire à sa surface un trou taraudé accueillant une vis 5 filetée sur toute sa longueur.The ring 3 is closed at its bottom by a base 4 having in a direction substantially perpendicular to its surface a threaded hole accommodating a screw 5 threaded over its entire length.

L'ensemble constitué par l'anneau 3, l'embase 4 et la vis 5 est appelé ensemble de vis dans la suite de la description.The assembly constituted by the ring 3, the base 4 and the screw 5 is called set of screws in the following description.

Selon l'invention, un premier élément indicateur de vissage 6 est vissé sur la vis 5 et serré à fond sur la partie inférieure de l'embase 4, constituant un écrou de ladite vis 5. L'ensemble de vis et le premier élément indicateur de vissage sont solidaires.According to the invention, a first screw indicator element 6 is screwed onto the screw 5 and tightly tightened on the lower part of the base 4, constituting a nut of said screw 5. The set of screws and the first indicator element screwing are integral.

Le dispositif de manutention 1 selon l'invention comprend également un deuxième élément indicateur de vissage 7, assemblé sur le premier élément indicateur de vissage 6 par des moyens de liaison décrits ci-après.The handling device 1 according to the invention also comprises a second screw indicator element 7, assembled on the first screw indicator element 6 by connection means described below.

Selon un mode de réalisation non représenté, le corps de la vis 5 est fileté uniquement en sa partie inférieure sur une longueur adaptée pour que la longueur d'ancrage de la vis dans la charge à manutentionner soit suffisante pour assurer un bon maintien entre le dispositif de manutention selon l'invention et ladite charge.According to an embodiment not shown, the body of the screw 5 is threaded only at its bottom for a length adapted so that the anchoring length of the screw in the load to be handled is sufficient to ensure good support between the device handling according to the invention and said load.

Selon un tel mode de réalisation, le premier élément indicateur de vissage est monté sur la vis et maintenu serré sur la partie inférieure de l'embase par tout moyen de maintien le rendant solidaire de l'ensemble de vis. Un tel maintien peut être réalisé par exemple par de la colle, des rivets, ou tout autre moyen connu de l'homme du métier.According to such an embodiment, the first screw indicator element is mounted on the screw and held tight on the lower part of the base by any holding means making it integral with the set of screws. Such maintenance can be achieved for example by glue, rivets, or any other means known to those skilled in the art.

En se référant maintenant aux figures 3 et 4, le premier élément indicateur de vissage 6 comprend un corps tubulaire 8 surmonté en sa partie supérieure d'une collerette 9.Referring now to Figures 3 and 4 , the first screw indicator element 6 comprises a tubular body 8 surmounted in its upper part by a collar 9.

Le corps tubulaire 8 du premier élément indicateur de vissage 6 comprend sur sa face interne un taraudage conformé pour être vissé sur la vis 5 de l'ensemble de vis.The tubular body 8 of the first screw indicator element 6 comprises on its inner face a tapping shaped to be screwed onto the screw 5 of the set of screws.

Le deuxième élément indicateur de vissage 7 a la forme d'un manchon tubulaire 10 de longueur sensiblement égale à celle du corps tubulaire 8.The second screw indicator element 7 has the shape of a tubular sleeve 10 of length substantially equal to that of the tubular body 8.

Le deuxième élément indicateur de vissage 7 est destiné à être monté sur le premier élément indicateur de vissage 6. A cet effet, le manchon tubulaire 10 a nécessairement un diamètre supérieur à celui du corps tubulaire 8.The second screw indicator element 7 is intended to be mounted on the first screw indicator element 6. For this purpose, the tubular sleeve 10 necessarily has a diameter greater than that of the tubular body 8.

En fait, le manchon tubulaire 10 comprend deux diamètres différents, la partie inférieure 11 du manchon 10 étant de diamètre inférieur à la partie supérieure 12 du manchon 10.In fact, the tubular sleeve 10 comprises two different diameters, the lower portion 11 of the sleeve 10 being of smaller diameter than the upper part 12 of the sleeve 10.

Par ailleurs, le diamètre de la partie supérieure 12 du manchon 10 est supérieur à celui de la collerette 9 définissant la partie supérieure du corps tubulaire 8.Moreover, the diameter of the upper part 12 of the sleeve 10 is greater than that of the collar 9 defining the upper part of the tubular body 8.

Grâce à cet agencement, le manchon tubulaire 10 constituant le deuxième élément indicateur de vissage est apte à recouvrir la totalité de la longueur du corps tubulaire 8 formant le premier élément indicateur de vissage, lors de l'assemblage des premier et deuxième éléments indicateurs de vissage.With this arrangement, the tubular sleeve 10 constituting the second screw indicator element is able to cover the entire length of the tubular body 8 forming the first screw indicator element, during the assembly of the first and second screw indicator elements. .

En outre, les premier et deuxième éléments indicateurs de vissage sont maintenus ensemble par un élément assurant, d'une part, un blocage en translation dans une direction sensiblement parallèle à l'axe de la vis 5 et, d'autre part, un blocage en rotation.In addition, the first and second screw indicator elements are held together by an element ensuring, on the one hand, a locking in translation in a direction substantially parallel to the axis of the screw 5 and, on the other hand, a locking in rotation.

Comme représenté à la figure 5, ce blocage est réalisé par une vis sans tête 13 s'insérant dans un trou oblong 14 inscrit en partie inférieure 11 du manchon 10 du deuxième élément indicateur de vissage 7.As represented in figure 5 this blocking is achieved by a set screw 13 inserted in an oblong hole 14 inscribed in the lower part 11 of the sleeve 10 of the second screw indicator element 7.

Un trou taraudé 15 accueillant la vis 13 est réalisé sur le corps tubulaire 8 du premier élément indicateur de vissage 6, dans une direction sensiblement perpendiculaire à l'axe de révolution dudit corps tubulaire 8.A tapped hole 15 accommodating the screw 13 is formed on the tubular body 8 of the first screw indicator element 6, in a direction substantially perpendicular to the axis of revolution of said tubular body 8.

Le blocage peut bien évidemment être réalisé par tout autre moyen connu de l'homme du métier.Blocking can of course be achieved by any other means known to those skilled in the art.

La partie supérieure 12 du manchon tubulaire 10 du deuxième élément indicateur de vissage 7 renferme des moyens de rappel élastique, tel qu'un ressort 16, comme représenté en figure 5. La partie inférieure 17 dudit ressort 16 prend appui sur un épaulement 18 formé par les parties inférieure 11 et supérieure 12 du manchon tubulaire 10, et la partie supérieure 19 dudit ressort 16 prend appui contre la collerette 9 du premier élément indicateur de vissage 6.The upper portion 12 of the tubular sleeve 10 of the second screw indicator element 7 encloses elastic return means, such as a spring 16, as shown in FIG. figure 5 . The lower portion 17 of said spring 16 is supported on a shoulder 18 formed by the lower 11 and upper 12 portions of the tubular sleeve 10, and the upper portion 19 of said spring 16 bears against the flange 9 of the first screw indicator element 6.

Le fonctionnement du dispositif selon l'invention est décrit ci-après, en se référant aux figures 5 et 6.The operation of the device according to the invention is described below, with reference to Figures 5 and 6 .

La figure 5 illustre le dispositif en position dite de repos, position correspondant soit à une situation selon laquelle ce dispositif n'est relié à aucune charge à manutentionner, soit à une situation selon laquelle le dispositif est vissé à la pièce à manutentionner, mais que le vissage entre ces deux éléments demeure insuffisant pour s'assurer que la pièce à manutentionner ne s'arrachera pas du dispositif de manutention.The figure 5 illustrates the device in so-called rest position, position corresponding either to a situation in which this device is not connected to any load to be handled, or to a situation in which the device is screwed to the part to be handled, but the screwing between these two elements remains insufficient to ensure that the part to be handled will not tear off the handling device.

Le ressort 16, en position d'extension, a tendance à repousser le deuxième élément indicateur de vissage 7, mobile en translation par rapport audit premier élément indicateur de vissage 6, en direction de la partie inférieure de l'ensemble du dispositif de manutention 1.The spring 16, in extended position, tends to push the second screw indicator element 7, movable in translation relative to said first screw indicator element 6, in the direction of the lower part of the assembly of the handling device 1 .

La position d'extension du ressort 16, tendant ainsi à éloigner le deuxième élément indicateur de vissage 7 de la partie supérieure du dispositif de manutention 1 permet, pour une position de repos du dispositif telle que définie précédemment, de découvrir en permanence la collerette 9 du premier élément indicateur de vissage 6.The extension position of the spring 16, thus tending to move the second screw indicator element 7 away from the upper part of the handling device 1, makes it possible, for a rest position of the device as defined above, to continuously discover the collar 9 the first screw indicator element 6.

Généralement, un opérateur qui s'apprête à manutentionner une charge vient visser à la main le dispositif de manutention 1 sur la charge à manutentionner.Generally, an operator who is about to handle a load hand screw the handling device 1 on the load to be handled.

Dans le cas d'un vissage insuffisant du dispositif de manutention 1 dans la charge à manutentionner, correspondant à une position de repos dudit dispositif de manutention, le ressort 16 se trouve en position d'extension et maintient alors le deuxième élément indicateur de vissage 7 en butée contre la charge à manutentionner.In the case of insufficient screwing of the handling device 1 in the load to be handled, corresponding to a rest position of said handling device, the spring 16 is in the extended position and then holds the second screw indicator element 7 in abutment against the load to be handled.

La collerette 9 du premier élément indicateur de vissage 6 reste alors découverte.The flange 9 of the first screw indicator element 6 remains uncovered.

L'opérateur est alors informé que le dispositif de manutention 1 est en position de repos et que ladite charge est de manière certaine mal fixée audit dispositif.The operator is then informed that the handling device 1 is in the rest position and that said load is surely not fixed to said device.

Selon une disposition avantageuse de l'invention, la collerette 9 est de couleur rouge, ce qui permet d'attirer l'attention de l'opérateur sur le fait que le dispositif de manutention 1 est mal fixé sur la charge et que cette dernière risque d'être arrachée si la longueur d'ancrage de la vis 5 dans la charge n'est pas augmentée.According to an advantageous arrangement of the invention, the flange 9 is red in color, which makes it possible to draw the attention of the operator to the fact that the handling device 1 is poorly attached to the load and that the latter risk to be torn off if the anchoring length of the screw 5 in the load is not increased.

Comme précédemment décrit, un opérateur qui s'apprête à manutentionner une charge C vient visser à la main le dispositif de manutention 1 sur la charge C à manutentionner.As previously described, an operator who is about to handle a load C manually screw the handling device 1 on the load C to be handled.

Le ressort 16 agit alors en traction lors de l'opération de vissage et a tendance à repousser le deuxième élément indicateur de vissage 7, mobile en translation par rapport audit premier élément indicateur de vissage 6, en direction de la partie inférieure de l'ensemble du dispositif de manutention 1.The spring 16 then acts in tension during the screwing operation and tends to push the second screw indicator element 7, movable in translation relative to said first screw indicator element 6, towards the lower part of the assembly. of the handling device 1.

Pour une certaine distance d'ancrage de la vis 5 dans la charge C, le ressort 16, agissant en traction, maintient le deuxième élément indicateur de vissage 7 en butée contre la charge C.For a certain anchoring distance of the screw 5 in the load C, the spring 16, acting in tension, holds the second screw indicator element 7 in abutment against the load C.

A ce stade d'enfoncement de la vis 5 dans la charge C, le ressort 16 n'est pas totalement comprimé et la collerette 9 du premier élément indicateur de vissage 6 est encore partiellement ou totalement découverte.At this point of insertion of the screw 5 into the load C, the spring 16 is not completely compressed and the flange 9 of the first screw indicator element 6 is still partially or totally uncovered.

On se réfère à présent à la figure 6. La figure 6 illustre un fonctionnement du dispositif de manutention selon l'invention en position dite serrée, position correspondant à une situation selon laquelle le dispositif de manutention est suffisamment vissé à la pièce à manutentionner, c'est-à-dire que la profondeur d'ancrage de la vis 5 dans la charge C est à présent suffisante pour s'assurer que la pièce à manutentionner ne pourra pas être arrachée durant la phase de manutention de la charge C.We now refer to the figure 6 . The figure 6 illustrates an operation of the handling device according to the invention in so-called tight position, a position corresponding to a situation in which the handling device is sufficiently screwed to the part to be handled, that is to say that the depth of anchoring of the screw 5 in the load C is now sufficient to ensure that the part to be handled can not be torn off during the handling phase of the load C.

Le deuxième élément indicateur de vissage 7, en butée contre la charge C, crée un obstacle à l'enfoncement de l'ensemble de vis solidaire du premier élément indicateur de vissage 6.The second screw indicator element 7, in abutment with the load C, creates an obstacle to the insertion of the screw assembly secured to the first screw indicator element 6.

Le ressort se retrouve alors comprimé, et autorise la pénétration de la collerette 9 du premier élément indicateur de vissage 6 à l'intérieur de la partie supérieure 12 du manchon 10 du deuxième élément indicateur de vissage 7.The spring is then compressed, and allows the penetration of the flange 9 of the first screw indicator element 6 inside the upper portion 12 of the sleeve 10 of the second screw indicator element 7.

Dans une telle situation, il y a coïncidence entre la collerette 9 du premier élément indicateur de vissage 6 et du deuxième élément indicateur de vissage 7, c'est-à-dire que la collerette 9 n'est plus visible par l'utilisateur.In such a situation, there is coincidence between the flange 9 of the first screw indicator element 6 and the second screw indicator element 7, that is to say that the flange 9 is no longer visible to the user.

La zone définie par le manchon tubulaire 10 du deuxième élément indicateur de vissage 7 recouvre alors complètement le premier élément indicateur de vissage 6The zone defined by the tubular sleeve 10 of the second screw indicator element 7 then completely covers the first screw indicator element 6

L'utilisateur en déduit alors que la profondeur d'ancrage de la vis 5 du dispositif de manutention 1 dans la charge C à manutentionner est suffisante. La charge est ainsi prête à être manutentionnée.The user then deduces that the anchoring depth of the screw 5 of the handling device 1 in the load C to be handled is sufficient. The load is ready to be handled.

Selon une disposition avantageuse de l'invention, la partie supérieure 12 du manchon 10 du deuxième élément indicateur de vissage 7 est de couleur verte, ce qui permet d'informer l'opérateur qui est dans un situation de vissage serré que le dispositif de manutention est convenablement fixé sur la charge C et que cette dernière ne risque pas de se détacher lors de l'opération de manutention.According to an advantageous arrangement of the invention, the upper portion 12 of the sleeve 10 of the second screw indicator element 7 is green, which makes it possible to inform the operator who is in a tight tightening situation that the handling device is properly fixed on the load C and that the latter is not likely to come loose during the handling operation.

Grâce à la présente l'invention, on dispose d'un dispositif de manutention sûr pour l'utilisateur.With the present invention, there is a safe handling device for the user.

Grâce à ce dispositif simple à mettre en oeuvre et peu onéreux, l'utilisateur dispose d'un moyen permettant de s'assurer que la charge est bien maintenue au dispositif de manutention et qu'elle ne risque pas de s'arracher, pour des conditions normales d'utilisation de l'ensemble de levage.With this device easy to implement and inexpensive, the user has a means to ensure that the load is maintained at the handling device and it is not likely to tear, for normal conditions of use of the lifting assembly.

Comme il va de soi, l'invention ne se limite pas aux seules formes de réalisation de ce dispositif de manutention décrites ci-dessus à titre d'exemples, mais elle embrasse au contraire toutes les variantes.As goes without saying, the invention is not limited to the embodiments of this handling device described above as examples, but it embraces all variants.

Claims (5)

  1. A device (1) for handling a load (C) provided with at least one thread comprising a screw assembly equipped with gripping means (3) and capable of connecting to said load, said handling device being characterized in that it comprises:
    - a first screwing indicator element (6) secured to said screw assembly;
    - a second screwing indicator element (7) movable at least in translation relative to said first element, and
    - resilient return means (16),
    said resilient return means (16) being inserted between the first screwing indicator element (6) and the second screwing indicator element (7) and having the effect of returning the second screwing indicator element (7) such that the latter abuts against the load (C), so that a coincidence between the two screwing indicator elements indicates a sufficient screwing of the handling device (1) onto said load (C).
  2. The handling device (1) according to Claim 1, characterized in that the second screwing indicator element (7) contains the resilient return means (16).
  3. The handling device (1) according to any one of Claims 1 or 2, characterized in that the second screwing indicator element (7) comprises at least one area shaped to completely cover the first screwing indicator element (6) when said second screwing indicator element (7) abuts against the load (C) and the screwing between the handling device (1) and said load (C) is sufficient.
  4. The handling device (1) according to any one of Claims 1 to 3, characterized in that the screw assembly comprises gripping means (3) forming a substantially U-shaped ring closed by a base (4), said base being provided with at least one threaded hole adapted to receive at least one screw (5) on the body of which the first screwing indicator element (6) is mounted.
  5. The handling device (1) according to any one of Claims 1 to 4, characterized in that the first and second screwing indicator elements have different colors.
EP12758580.0A 2011-09-02 2012-08-28 Device for handling a load Active EP2751011B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1157827A FR2979624B1 (en) 2011-09-02 2011-09-02 DEVICE FOR HANDLING A LOAD
PCT/FR2012/051948 WO2013030507A1 (en) 2011-09-02 2012-08-28 Device for handling a load

Publications (2)

Publication Number Publication Date
EP2751011A1 EP2751011A1 (en) 2014-07-09
EP2751011B1 true EP2751011B1 (en) 2015-04-15

Family

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Application Number Title Priority Date Filing Date
EP12758580.0A Active EP2751011B1 (en) 2011-09-02 2012-08-28 Device for handling a load

Country Status (9)

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US (1) US9327945B2 (en)
EP (1) EP2751011B1 (en)
CN (1) CN103764540B (en)
BR (1) BR112014003435A2 (en)
CA (1) CA2844821A1 (en)
ES (1) ES2538668T3 (en)
FR (1) FR2979624B1 (en)
RU (1) RU2014111564A (en)
WO (1) WO2013030507A1 (en)

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CN111039160A (en) * 2019-12-26 2020-04-21 中车大同电力机车有限公司 Hoisting mechanism

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FR3012802A1 (en) * 2013-11-06 2015-05-08 Edmond Altabe ROTATING AND ARTICULABLE ANSE
EP3263505B1 (en) * 2016-06-30 2019-10-23 Intelprop S.A. Load control device, in particular for a lifting ring
CN107697789A (en) * 2017-11-25 2018-02-16 苏州金牛精密机械有限公司 A kind of suspender mechanism
RU196260U1 (en) * 2019-12-09 2020-02-21 Федеральное государственное казённое военное образовательное учреждение высшего образования "Военная академия материально-технического обеспечения имени генерала армии А.В. Хрулева" Министерства обороны Российской Федерации Anchor gripping design for large fragments of building structures
USD974882S1 (en) * 2021-05-17 2023-01-10 Leon Griffin Lifting eye

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Also Published As

Publication number Publication date
FR2979624B1 (en) 2013-08-23
ES2538668T3 (en) 2015-06-23
CA2844821A1 (en) 2013-03-07
BR112014003435A2 (en) 2017-03-14
EP2751011A1 (en) 2014-07-09
US20140178145A1 (en) 2014-06-26
CN103764540B (en) 2016-04-27
WO2013030507A1 (en) 2013-03-07
CN103764540A (en) 2014-04-30
US9327945B2 (en) 2016-05-03
RU2014111564A (en) 2015-10-10
FR2979624A1 (en) 2013-03-08

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