EP1164106A1 - Lifting ring - Google Patents

Lifting ring Download PDF

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Publication number
EP1164106A1
EP1164106A1 EP00870131A EP00870131A EP1164106A1 EP 1164106 A1 EP1164106 A1 EP 1164106A1 EP 00870131 A EP00870131 A EP 00870131A EP 00870131 A EP00870131 A EP 00870131A EP 1164106 A1 EP1164106 A1 EP 1164106A1
Authority
EP
European Patent Office
Prior art keywords
lifting ring
load
base
spindle
groove
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.)
Granted
Application number
EP00870131A
Other languages
German (de)
French (fr)
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EP1164106B1 (en
Inventor
Georges Zuliani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHBL SA
Original Assignee
SHBL SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHBL SA filed Critical SHBL SA
Priority to ES00870131T priority Critical patent/ES2274774T3/en
Priority to PT00870131T priority patent/PT1164106E/en
Priority to DE60031840T priority patent/DE60031840T2/en
Priority to AT00870131T priority patent/ATE345307T1/en
Priority to EP00870131A priority patent/EP1164106B1/en
Priority to US09/880,568 priority patent/US6478350B2/en
Publication of EP1164106A1 publication Critical patent/EP1164106A1/en
Application granted granted Critical
Publication of EP1164106B1 publication Critical patent/EP1164106B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32114—Articulated members including static joint
    • Y10T403/32213—Articulate joint is a swivel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32975—Rotatable

Definitions

  • the invention relates to lifting rings, especially for heavy loads.
  • the lifting eye of the invention is more specially designed for suspended loads requiring precise positioning maneuvers and orientation, such as injection molds industrial, etc.
  • Classic swivel lifting eyes include a pivoting body supporting a shackle and an element anchor formed by a threaded rod.
  • Such rings are described in particular in WO 90/10803 and GB 2 303 682.
  • tool users in particular in the case of plastic injection molds
  • rings that don't leave much room to pass the lifting hook, so that the sockets, miscellaneous fittings, the pipes are torn off when handling and more particularly during turning of the parts handled.
  • the invention solves the above problems by offering smooth tail rings, with retained as described in the technical development below, and also makes it possible, thanks to the space saved, the addition of a base allowing strong rings offset of exceptional solidity.
  • the object of the invention is a lifting ring for load, including a hooking loop, a body swivel and an anchor in the body of a load wherein the anchor is a cylindrical pin smooth.
  • a peripheral groove is provided near the free end of this pin, an expandable rod being inserted into said groove.
  • the spindle is engaged and axially locked in a cylindrical housing secured to the body of the load by the rod.
  • Housing cylindrical includes a second peripheral groove coming next to that of the spindle, in which the expandable rod is inserted.
  • the expandable ring is preferably a ring split elastic, or it includes an elastic piece pushing outwards on rollers or segments, so as to engage them in the groove.
  • the loop can be an integral part of the body of the ring or else passes through an eyelet integrated into the body of the ring.
  • the housing cylindrical in which the pivoting body is mounted is formed in a base fixed to the body of the load.
  • the top of this base may have an offset in important before compared to the surface of the load, this which facilitates handling in suspension.
  • the cylindrical housing then comprises, so advantageous, a section of larger diameter on the side of the back of the base, an annular lock being inserted along of this section, between the base and the spindle, so that hold the rod or its components in place.
  • the brooch can extend beyond the reverse of the base, in a cavity of corresponding diameter formed in the body of the load, which improves its centering and her outfit.
  • Another object of the invention is a ring body of lifting as described above, which includes a loop, a smooth cylindrical spindle, a peripheral groove being formed near the free end of this pin, a rod expandable being inserted into said groove.
  • a clamp keeps the compressed rod in place prior to insertion of the smooth spindle in a suitable housing.
  • An advantage of the invention is that one can gain on the solidity of the axis, because, for example, a smooth spindle of diameter 48 is more resistant than an M 48 thread, especially at the junction with the ring. It is easy to strengthen the resistance from a diameter of ⁇ 48 to a diameter ⁇ 56, the resistance being multiplied by ⁇ 1.8, thus making it possible to offer a capacity of use in 90 ° traction close to that of axial traction. Generally the loss of efficiency at 90 ° is of the order of 40% compared to axial traction, due to the weakness at the junction point on conventional rings both monoblock and articulated.
  • the cost of a smooth axis ⁇ 56 is lower than that a ⁇ 48 threaded axis, yet of smaller diameter.
  • Another advantage is that the invention solves the problem of tightening (or forgetting to tighten), because a ring clipped or locked can not be half. Furthermore, the ability to connect the rod with the ring is reinforced.
  • the lifting ring according to the invention offers values guaranteed by the manufacturer, corresponding to the spirit of standardization sought in particular by major contractors in the plastic industry, but also in other industries.
  • Fig. 1 is a general view of the lifting ring of the invention composed of a hanging loop 2 which forms here a single piece with the pivoting body 4. This body 4 is extends backwards into a smooth pin 6.
  • the x and y axes define the direction of the stresses lateral or axial.
  • a peripheral groove 8 is formed in this pin 6, usually near the free end.
  • Pin 6 is inserted into a cylindrical housing 10 formed in the body of the load 12.
  • a groove 14 makes the round the cylindrical housing 10, at a depth of relative to the plane of the surface 16 of the load 12 corresponding to the position of the groove 8 on the spindle 6.
  • the rod 18 is placed in the groove of the pin 6.
  • the rod 18 is here a split ring 19 made of steel hard treated spring, with a profile designed to help the fitting and avoid the possible closing on itself in use.
  • the rod 18 is, before insertion, held tight by a clamp (not shown).
  • a clamp (not shown).
  • pin 6 When pin 6 is pushed into the cylindrical housing 10, the rod 18, which has a slight taper, due to its elasticity, begins to enter this housing 10.
  • the collar of tightening ripe and, when the rod has entered the housing 10, can be removed. Then just push the ring 1 fully in its housing 10 until the rod, coming opposite throat 14, relaxes there and thus locks ring 1.
  • the respective positions of the groove and the groove are calculated to provide the support face 20 with ring 1 enough play to allow free rotation of the ring 1 relative to the body of the load 12.
  • the diameter of the smooth spindle is of course calculated so that, even in its thinned part, it keeps a sufficient resistance to axial traction.
  • Figs. 4a to 4d show in more detail different possible embodiments of the expandable rod.
  • Fig. 4 a shows the split elastic ring 19.
  • This blade 22 is placed under rollers 24 (Fig. 4b, 4c) or segments 26, which it pushes outwards. To avoid any return to the center, the development of the blade 22 is calculated so that its ends come to an end last after expansion.
  • the rollers 24 or segments 26, engaged and maintained in the bottom of the groove 14, are in very hard steel and work in shear in case of axial traction.
  • Figs. 2 and 3 show that the ring can, without coming out within the scope of the invention, present loops 2 of shapes varied.
  • the loop 2 has the shape of a link closed 28, passed through an eyelet 30 integrated into the body 4 of the ring. Traction can be done in one direction any between x and y.
  • an intermediate link 32 is inserted between the eyelet 30 and the closed link 28.
  • the link 28 is orientable and hookable in the right direction so that a hook struggles in a plane parallel to the bearing face 16.
  • the cylindrical housing 10 is formed in a base 33, which is fixed either directly on the wall of the load, i.e. on the reverse of this, as shown in FIG. 5.
  • Figs. 6, 7 and 8 show an embodiment where the loop, mounted on a base 34, has a large offset relative to the bearing face of the load.
  • This embodiment is made possible by the high resistance conferred by the smooth spindle and the gain in axial extension, due to the absence of any mechanism pivoting of the loop, the body of the ring 1 being, in itself, pivoting.
  • FIG. 7 illustrate the possibility to make bases 34 with a large wheelbase, bolted on the load face.
  • the sole 6 of base 34 can be round or square.
  • Pin 6 is retained either by a split rod 18, or by rollers 24, or by segments 26 of very high steel hard, working in shear.
  • the cylindrical housing 10 can, as shown in the Fig. 6, cross the entire length of the base 34 and comprise a section 40 of larger diameter, which allows to insert by the back of the base 34 a lock annular 40 which holds the rod 18 or its components (rollers 24 segments 26) in place.
  • ring with base is bolted above a cavity in the body of the load.
  • the diameter of this cavity is calculated so that y introduce a centering ring 44 which provides security additional for pull-ups according to y.
  • the cavity can be a tapped hole in the base 34, which makes it possible to fix, as desired, a ring of conventional lifting on the same location.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The lifting ring consists of a body (4) with a ring loop (2), and has a smooth cylindrical shank (6) for inserting into a cavity (10) in the load (12). The shank has an annular groove (8) for an expanding split ring (18) which engages with a an annular recess (14) in the wall of the cavity to hold the lifting ring in place while allowing its shank to rotate.

Description

L'invention concerne les anneaux de levage, spécialement pour charge pondéreuse.The invention relates to lifting rings, especially for heavy loads.

L'anneau de levage de l'invention est plus particulièrement conçu pour des charges suspendues requérant des manoeuvres précises de positionnement et d'orientation, telles que des moules d'injection industriels, etc.The lifting eye of the invention is more specially designed for suspended loads requiring precise positioning maneuvers and orientation, such as injection molds industrial, etc.

Les anneaux de levage pivotants classiques comprennent un corps pivotant supportant une manille et un élément d'ancrage constitué par une tige filetée.Classic swivel lifting eyes include a pivoting body supporting a shackle and an element anchor formed by a threaded rod.

De tels anneaux sont décrits notamment dans WO 90/10803 et GB 2 303 682.Such rings are described in particular in WO 90/10803 and GB 2 303 682.

La pratique révèle que ces anneaux présentent une série d'inconvénients. Leur point faible (zone de rupture) n'est généralement pas l'anneau mais la jonction entre la partie filetée et la face d'appui de l'anneau sur la charge. Cette constatation se vérifie tant sur les anneaux monoblocs que sur les anneaux articulés (elle s'amplifie d'autant plus lorsque l'anneau n'est pas parfaitement plaqué sur la face d'appui).Practice shows that these rings have a series of drawbacks. Their weak point (rupture zone) is generally not the ring but the junction between the threaded part and the bearing face of the ring on the charge. This finding is true both on the rings monoblocks than on articulated rings (it increases all the more so when the ring is not perfectly plated on the support face).

Par ailleurs, les utilisateurs d'outillages (notamment dans le cas de moules d'injection plastiques) sont souvent gênés par des anneaux qui ne laissent pas beaucoup de place pour passer le crochet de levage, si bien que les prises, les raccords divers, les tuyauteries se font arracher lors de manutentions et plus particulièrement pendant le retournement des pièces manipulées.In addition, tool users (in particular in the case of plastic injection molds) are often hindered by rings that don't leave much room to pass the lifting hook, so that the sockets, miscellaneous fittings, the pipes are torn off when handling and more particularly during turning of the parts handled.

Il existe donc une demande réelle pour éloigner de façon sûre le point d'accrochage de la surface des moules, mais aussi par ailleurs un problème de sécurité, car très souvent les utilisateurs ont recours à des montages de fortune et autres solutions hasardeuses avec des anneaux montés sur des rallonges pour éloigner le point d'accrochage de la face d'appui de la charge.There is therefore a real demand to move away from securely the attachment point of the mold surface, but also a security problem, because users often use montages of fortune and other haphazard solutions with rings mounted on extensions to distance the point for attaching the bearing face of the load.

L'invention résout les problèmes ci-dessus en proposant des anneaux à queue lisse, avec système de retenue comme exposé dans le développé technique ci-après, et rend également possible, grâce au gain de place réalisé, l'adjonction d'une embase permettant des anneaux à fort déport d'une solidité exceptionnelle.The invention solves the above problems by offering smooth tail rings, with retained as described in the technical development below, and also makes it possible, thanks to the space saved, the addition of a base allowing strong rings offset of exceptional solidity.

L'objet de l'invention est un anneau de levage pour charge, comprenant une boucle d'accrochage, un corps pivotant et un élément d'ancrage dans le corps d'une charge dans lequel l'élément d'ancrage est une broche cylindrique lisse. Une rainure périphérique est ménagée près de l'extrémité libre de cette broche, un jonc expansible étant inséré dans ladite rainure. La broche est engagée et verrouillée axialement dans un logement cylindrique solidaire du corps de la charge par le jonc. Le logement cylindrique comprend une deuxième rainure périphérique venant en regard de celle de la broche, dans laquelle le jonc expansible est inséré.The object of the invention is a lifting ring for load, including a hooking loop, a body swivel and an anchor in the body of a load wherein the anchor is a cylindrical pin smooth. A peripheral groove is provided near the free end of this pin, an expandable rod being inserted into said groove. The spindle is engaged and axially locked in a cylindrical housing secured to the body of the load by the rod. Housing cylindrical includes a second peripheral groove coming next to that of the spindle, in which the expandable rod is inserted.

Le jonc expansible est de préférence un anneau élastique fendu, ou bien il comprend une pièce élastique exerçant une poussée vers l'extérieur sur des galets ou des segments, de façon à les engager dans la gorge.The expandable ring is preferably a ring split elastic, or it includes an elastic piece pushing outwards on rollers or segments, so as to engage them in the groove.

La boucle peut faire partie intégrante du corps de l'anneau ou bien passe dans un oeilleton intégrée au corps de l'anneau.The loop can be an integral part of the body of the ring or else passes through an eyelet integrated into the body of the ring.

Suivant un mode de réalisation avantageux, le logement cylindrique dans laquelle le corps pivotant est monté est ménagé dans une embase fixée au corps de la charge. According to an advantageous embodiment, the housing cylindrical in which the pivoting body is mounted is formed in a base fixed to the body of the load.

Le sommet de cette embase peut présenter un déport en avant important par rapport à la surface de la charge, ce qui facilite les manipulations en suspension.The top of this base may have an offset in important before compared to the surface of the load, this which facilitates handling in suspension.

Dans ce cas, il est avantageux que le logement cylindrique traverse l'embase.In this case, it is advantageous that the accommodation cylindrical through the base.

Le logement cylindrique comprend alors , de façon avantageuse, un tronçon de plus grand diamètre du côté du revers de l'embase, un verrou annulaire étant inséré le long de ce tronçon, entre l'embase et la broche, de façon à maintenir le jonc ou ses composants en place.The cylindrical housing then comprises, so advantageous, a section of larger diameter on the side of the back of the base, an annular lock being inserted along of this section, between the base and the spindle, so that hold the rod or its components in place.

La broche peut se prolonger au-delà du revers de l'embase, dans une cavité de diamètre correspondant ménagée dans le corps de la charge, ce qui améliore son centrage et sa tenue.The brooch can extend beyond the reverse of the base, in a cavity of corresponding diameter formed in the body of the load, which improves its centering and her outfit.

Un autre objet de l'invention est un corps d'anneau de levage comme décrit ci-dessus, qui comprend une boucle, une broche cylindrique lisse, une rainure périphérique étant ménagée près de l'extrémité libre de cette broche, un jonc expansible étant inséré dans ladite rainure.Another object of the invention is a ring body of lifting as described above, which includes a loop, a smooth cylindrical spindle, a peripheral groove being formed near the free end of this pin, a rod expandable being inserted into said groove.

Avantageusement, un collier de serrage maintient le jonc comprimé en place préalablement à une insertion de la broche lisse dans un logement approprié.Advantageously, a clamp keeps the compressed rod in place prior to insertion of the smooth spindle in a suitable housing.

Un avantage de l'invention est que l'on peut gagner sur la solidité de l'axe, car, par exemple, une broche lisse de diamètre 48 est plus résistante qu'un filetage M 48, surtout à la jonction avec l'anneau. Il est aisé de renforcer la résistance en passant d'un diamètre de Ø 48 à un diamètre de Ø 56, la résistance se trouvant multipliée par ± 1,8, permettant ainsi d'offrir une capacité d'utilisation en traction à 90° proche de celle d'une traction axiale. Généralement la perte d'efficacité à 90° est de l'ordre de 40 % par rapport à la traction axiale, du fait de la faiblesse au point de jonction sur les anneaux classiques tant monoblocs qu'articulés.An advantage of the invention is that one can gain on the solidity of the axis, because, for example, a smooth spindle of diameter 48 is more resistant than an M 48 thread, especially at the junction with the ring. It is easy to strengthen the resistance from a diameter of Ø 48 to a diameter Ø 56, the resistance being multiplied by ± 1.8, thus making it possible to offer a capacity of use in 90 ° traction close to that of axial traction. Generally the loss of efficiency at 90 ° is of the order of 40% compared to axial traction, due to the weakness at the junction point on conventional rings both monoblock and articulated.

Le coût d'un axe lisse ⊘ 56 est moins élevé que celui d'un axe fileté Ø 48, pourtant de moindre diamètre.The cost of a smooth axis ⊘ 56 is lower than that a Ø 48 threaded axis, yet of smaller diameter.

Un autre avantage est que l'invention résout le problème du serrage (ou des oublis de serrage), car un anneau clipsé ou verrouillé ne peut pas l'être à moitié. Par ailleurs, la capacité au raccordement de la tige avec l'anneau est renforcée.Another advantage is that the invention solves the problem of tightening (or forgetting to tighten), because a ring clipped or locked can not be half. Furthermore, the ability to connect the rod with the ring is reinforced.

L'anneau de levage suivant l'invention offre des valeurs garanties par le constructeur, correspondant à l'esprit de standardisation recherchée notamment par les grands donneurs d'ordres de l'industrie plastique, mais également dans d'autres industries.The lifting ring according to the invention offers values guaranteed by the manufacturer, corresponding to the spirit of standardization sought in particular by major contractors in the plastic industry, but also in other industries.

D'autres particularités et avantages de l'invention ressortiront de la description ci-après de formes de réalisations particulières, référence étant faite aux dessins annexés, dans lesquels

  • la Fig. 1 est une vue latérale d'une forme de réalisation de l'anneau, encastrée dans une charge (en coupe)
  • les Fig. 2 et 3 sont des vues latérales de forme de réalisation où la boucle a une forme différente
  • les Fig. 4a à 4d sont des vues en coupe de détails de réalisation du verrouillage de la broche
  • la Fig. 5 est une vue latérale d'un anneau avec embase
  • les Fig. 6 et 7 sont des vues combinées, respectivement en coupe latérale et du dessous d'un anneau avec embase avec déport axial
  • la Fig. 8 est une vue latérale en coupe d'un anneau comme à la Fig. 6, avec broche allongée.
    • Other features and advantages of the invention will emerge from the description below of particular embodiments, reference being made to the appended drawings, in which
  • Fig. 1 is a side view of an embodiment of the ring, embedded in a load (in section)
  • Figs. 2 and 3 are side views of an embodiment where the loop has a different shape
  • Figs. 4a to 4d are sectional views of details of the embodiment of the spindle locking
  • Fig. 5 is a side view of a ring with base
  • Figs. 6 and 7 are combined views, respectively in side and bottom section of a ring with base with axial offset
  • Fig. 8 is a side sectional view of a ring as in FIG. 6, with elongated pin.

    • La Fig. 1 est une vue générale de l'anneau de levage de l'invention composé d'une boucle d'accrochage 2 qui forme ici une seule pièce avec le corps 4 pivotant. Ce corps 4 se prolonge vers l'arrière en une broche 6 lisse.Fig. 1 is a general view of the lifting ring of the invention composed of a hanging loop 2 which forms here a single piece with the pivoting body 4. This body 4 is extends backwards into a smooth pin 6.

    Les axes x et y définissent le sens des sollicitations latérales ou axiales.The x and y axes define the direction of the stresses lateral or axial.

    Une rainure périphérique 8 est ménagée dans cette broche 6, généralement près de l'extrémité libre.A peripheral groove 8 is formed in this pin 6, usually near the free end.

    La broche 6 est insérée dans un logement cylindrique 10 ménagé dans le corps de la charge 12. Une gorge 14 fait le tour du logement cylindrique 10, à une profondeur par rapport au plan de la surface 16 de la charge 12 correspondant à la position de la rainure 8 sur la broche 6.Pin 6 is inserted into a cylindrical housing 10 formed in the body of the load 12. A groove 14 makes the round the cylindrical housing 10, at a depth of relative to the plane of the surface 16 of the load 12 corresponding to the position of the groove 8 on the spindle 6.

    Un jonc expansible 18 est placé dans la rainure de la broche 6. Le jonc 18 est ici un anneau fendu 19 en acier à ressort traité dur, au profil étudié pour aider à l'emmanchement et éviter le refermement éventuel sur lui-même à l'usage.An expandable rod 18 is placed in the groove of the pin 6. The rod 18 is here a split ring 19 made of steel hard treated spring, with a profile designed to help the fitting and avoid the possible closing on itself in use.

    Le jonc 18 est, avant l'insertion, maintenu serré par un collier de serrage (non représenté). Lorsque la broche 6 est poussée dans le logement cylindrique 10, le jonc 18, qui présente une légère conicité, de par son élasticité, commence à rentrer dans ce logement 10. Le collier de serrage ripe et, lorsque le jonc est entré dans le logement 10, peut être retiré. Il suffit ensuite de pousser l'anneau 1 à fond dans son logement 10 jusqu'à ce que le jonc, venant en regard de la gorge 14, s'y détende et verrouille ainsi l'anneau 1.The rod 18 is, before insertion, held tight by a clamp (not shown). When pin 6 is pushed into the cylindrical housing 10, the rod 18, which has a slight taper, due to its elasticity, begins to enter this housing 10. The collar of tightening ripe and, when the rod has entered the housing 10, can be removed. Then just push the ring 1 fully in its housing 10 until the rod, coming opposite throat 14, relaxes there and thus locks ring 1.

    Les positions respectives de la gorge et de la rainure sont calculées pour procurer à la face d'appui 20 de l'anneau 1 un jeu suffisant pour permettre une libre rotation de l'anneau 1 par rapport au corps de la charge 12.The respective positions of the groove and the groove are calculated to provide the support face 20 with ring 1 enough play to allow free rotation of the ring 1 relative to the body of the load 12.

    Le diamètre de la broche lisse est bien sûr calculé pour que, même dans sa partie amincie, elle garde une résistance suffisante à la traction axiale. The diameter of the smooth spindle is of course calculated so that, even in its thinned part, it keeps a sufficient resistance to axial traction.

    Les Fig. 4a à 4d montrent plus en détail différentes formes de réalisation possible du jonc expansible. La Fig. 4 a montre l'anneau élastique fendu 19.Figs. 4a to 4d show in more detail different possible embodiments of the expandable rod. Fig. 4 a shows the split elastic ring 19.

    Lorsque le diamètre de la broche est faible, l'anneau fendu 19 risque de ne pas avoir une élasticité suffisante. Dans ce cas, on utilise comme montré dans les Fig. 4b, 4c et 4d une lame ressort 22 enroulée en spirale sur plus d'un tour. Cette lame 22 est placée sous des galets 24 (Fig. 4b, 4c) ou des segments 26, qu'elle repousse vers l'extérieur. Pour éviter tout retour vers le centre, le développé de la lame 22 est calculé pour que ses extrémités viennent bout à bout après l'expansion. Les galets 24 ou segments 26, engagés et maintenus dans le fond de la gorge 14, sont en acier très dur et travaillent en cisaillement en cas de traction axiale.When the diameter of the spindle is small, the ring split 19 may not have sufficient elasticity. In this case, as shown in Figs. 4b, 4c and 4d a leaf spring 22 wound in a spiral on more than one tower. This blade 22 is placed under rollers 24 (Fig. 4b, 4c) or segments 26, which it pushes outwards. To avoid any return to the center, the development of the blade 22 is calculated so that its ends come to an end last after expansion. The rollers 24 or segments 26, engaged and maintained in the bottom of the groove 14, are in very hard steel and work in shear in case of axial traction.

    Les Fig. 2 et 3 montrent que l'anneau peut, sans sortir du cadre de l'invention, présenter des boucles 2 de formes variées.Figs. 2 and 3 show that the ring can, without coming out within the scope of the invention, present loops 2 of shapes varied.

    Sur la Fig. 2, la boucle 2 a la forme d'un maillon fermé 28, passé dans un oeilleton 30 intégré dans le corps 4 de l'anneau. La traction peut se faire suivant une direction quelconque entre x et y.In Fig. 2, the loop 2 has the shape of a link closed 28, passed through an eyelet 30 integrated into the body 4 of the ring. Traction can be done in one direction any between x and y.

    A la Fig. 3, un chaínon intermédiaire 32 est intercalé entre l'oeilleton 30 et le maillon fermé 28. Le maillon 28 est orientable et crochetable dans le bon sens pour qu'un crochet se débatte dans un plan parallèle à la face d'appui 16.In Fig. 3, an intermediate link 32 is inserted between the eyelet 30 and the closed link 28. The link 28 is orientable and hookable in the right direction so that a hook struggles in a plane parallel to the bearing face 16.

    Lorsque le corps de la charge présente une paroi mince, il peut être difficile voire impossible d'y insérer la broche directement. Dans ce cas, le logement cylindrique 10 est ménagé dans une embase 33, laquelle est fixée soit directement sur la paroi de la charge, soit sur le revers de celle-ci, comme montré à la Fig. 5. When the body of the load has a thin wall, it may be difficult or impossible to insert the spindle directly. In this case, the cylindrical housing 10 is formed in a base 33, which is fixed either directly on the wall of the load, i.e. on the reverse of this, as shown in FIG. 5.

    Les Fig. 6, 7 et 8 montrent une forme de réalisation où la boucle, montée sur une embase 34, présente un fort déport par rapport à la face d'appui de la charge.Figs. 6, 7 and 8 show an embodiment where the loop, mounted on a base 34, has a large offset relative to the bearing face of the load.

    Ce mode de réalisation est rendu possible par la résistance élevée conférée par la broche lisse et par le gain en extension axiale, dû à l'absence de tout mécanisme de pivotement de la boucle, le corps de l'anneau 1 étant, en lui-même, pivotant.This embodiment is made possible by the high resistance conferred by the smooth spindle and the gain in axial extension, due to the absence of any mechanism pivoting of the loop, the body of the ring 1 being, in itself, pivoting.

    En dépit du couple de torsion important créé par le déport de l'anneau, l'ensemble reste à haute résistance.Despite the high torque created by the offset from the ring, the assembly remains at high resistance.

    Les vues du dessus (Fig. 7) illustrent la possibilité de réaliser des embases 34 à fort empattement, boulonnées sur la face d'appui de la charge. Comme représenté, la semelle 6 de l'embase 34, en fonction de l'encombrement souhaité, peut être de forme ronde ou carrée.The views from above (Fig. 7) illustrate the possibility to make bases 34 with a large wheelbase, bolted on the load face. As shown, the sole 6 of base 34, depending on size desired, can be round or square.

    La broche 6 est retenue soit par un jonc fendu 18, soit par des galets 24, soit par des segments 26 en acier très dur, travaillant en cisaillement.Pin 6 is retained either by a split rod 18, or by rollers 24, or by segments 26 of very high steel hard, working in shear.

    Le logement cylindrique 10 peut, comme représenté à la Fig. 6, traverser toute la longueur de l'embase 34 et comprendre un tronçon 40 de plus grand diamètre, ce qui permet d'insérer par le revers de l'embase 34 un verrou annulaire 40 qui maintien le jonc 18 ou ses composants (galets 24 segments 26) en place.The cylindrical housing 10 can, as shown in the Fig. 6, cross the entire length of the base 34 and comprise a section 40 of larger diameter, which allows to insert by the back of the base 34 a lock annular 40 which holds the rod 18 or its components (rollers 24 segments 26) in place.

    A la Fig. 8, l'anneau avec embase est boulonné au-dessus d'une cavité ménagée dans le corps de la charge. Le diamètre de cette cavité est calculé de façon à pouvoir y introduire un anneau de centrage 44 qui apporte une sécurité supplémentaire pour des tractions suivant y.In Fig. 8, the ring with base is bolted above a cavity in the body of the load. The diameter of this cavity is calculated so that y introduce a centering ring 44 which provides security additional for pull-ups according to y.

    On notera que la cavité peut être un trou taraudé dans l'embase 34, ce qui permet de fixer, au choix, un anneau de levage classique sur le même emplacement.Note that the cavity can be a tapped hole in the base 34, which makes it possible to fix, as desired, a ring of conventional lifting on the same location.

    Claims (12)

    Un anneau de levage (1) pour charge, comprenant une boucle d'accrochage (2), un corps (4) pivotant et un élément d'ancrage dans un corps de charge caractérisé en ce que
    l'élément d'ancrage est une broche cylindrique lisse (6), une rainure périphérique (8) étant ménagée près de l'extrémité libre de cette broche (8), un jonc expansible (18) étant inséré dans ladite rainure (8), ladite broche (6) étant engagée et verrouillée axialement dans un logement cylindrique (10) solidaire du corps de la charge (12), ce logement cylindrique (10) comprenant une gorge (14) périphérique venant en regard de la rainure (8) de la broche, dans laquelle le jonc expansible (18) est inséré.    A lifting ring (1) for a load, comprising a hooking loop (2), a pivoting body (4) and an element for anchoring in a load body, characterized in that
    the anchoring element is a smooth cylindrical pin (6), a peripheral groove (8) being provided near the free end of this pin (8), an expandable rod (18) being inserted in said groove (8) , said spindle (6) being engaged and locked axially in a cylindrical housing (10) integral with the body of the load (12), this cylindrical housing (10) comprising a peripheral groove (14) coming opposite the groove (8) of the spindle, into which the expandable rod (18) is inserted.         Anneau de levage suivant la revendication 1 caractérisé en ce que le jonc expansible (18) est un anneau élastique fendu (19).Lifting ring according to claim 1 characterized in that the expandable rod (18) is a split elastic ring (19). Anneau de levage suivant la revendication 1 caractérisé en ce que le jonc expansible (18) comprend une pièce élastique (22) exerçant une poussée vers l'extérieur sur des galets (24) ou des segments (26) de façon à les engager dans la gorge (14).Lifting ring according to claim 1 characterized in that the expandable rod (18) comprises an elastic piece (22) pushing outwards on rollers (24) or segments (26) so as to engage them in the groove (14). Anneau de levage suivant l'une quelconque des revendications précédentes caractérisé en ce que la boucle (2) fait partie intégrante du corps (4) de l'anneau.Lifting ring according to any one of the preceding claims, characterized in that the loop (2) is an integral part of the body (4) of the ring. Anneau de levage suivant l'une quelconque des revendications 1 à 3 caractérisé en ce que la boucle (2) passe dans un oeillet (30) intégré au corps (4) de l'anneau.Lifting ring according to any one of Claims 1 to 3, characterized in that the loop (2) passes through an eyelet (30) integrated into the body (4) of the ring. Anneau de levage suivant l'une quelconque des revendications précédentes caractérisé en ce que le logement cylindrique (10) est ménagé dans une embase (33, 34) fixée au corps de la charge (12).Lifting ring according to any one of the preceding claims, characterized in that the cylindrical housing (10) is formed in a base (33, 34) fixed to the body of the load (12). Anneau de levage suivant la revendication 6 caractérisée en ce que le sommet de l'embase (34) présente un déport en avant de la surface (16) de la charge (12).Lifting ring according to claim 6 characterized in that the top of the base (34) has an offset in front of the surface (16) of the load (12). Anneau de levage suivant l'une quelconque des revendications 6 et 7 caractérisé en ce que le logement cylindrique (10) traverse l'embase (33,34).Lifting ring according to either of Claims 6 and 7, characterized in that the cylindrical housing (10) passes through the base (33,34). Anneau de levage suivant la revendication 8 caractérisé en ce que le logement cylindrique (10) comprend un tronçon (38) de plus grand diamètre du côté de la semelle (36) de l'embase (33,34), un verrou annulaire (40) étant inséré dans ce tronçon (38) entre l'embase (34) et la broche (6) de façon à maintenir le jonc (18) expansible en place.Lifting ring according to claim 8 characterized in that the cylindrical housing (10) comprises a section (38) of larger diameter on the side of the sole (36) of the base (33,34), an annular latch (40 ) being inserted in this section (38) between the base (34) and the spindle (6) so as to hold the expandable rod (18) in place. Anneau de levage suivant l'une quelconque des revendications 8 et 9 caractérisé en ce que la broche (6) se prolonge au-delà du revers de l'embase (34), dans une cavité de diamètre correspondant ménagée dans le corps de la charge (12).Lifting ring according to either of Claims 8 and 9, characterized in that the pin (6) extends beyond the reverse of the base (34), in a cavity of corresponding diameter made in the body of the load (12). Un corps (4) d'anneau de levage (1) suivant l'une quelconque des revendications précédentes caractérisé en ce qu'il comprend une boucle (2) une broche cylindrique lisse (6), une rainure (8) périphérique étant ménagée près de l'extrémité libre de cette broche (6), un jonc expansible (18) étant inséré dans ladite rainure (8). A lifting ring body (4) according to any one of the preceding claims, characterized in that it comprises a loop (2) a smooth cylindrical spindle (6), a peripheral groove (8) being provided near the free end of this spindle (6), an expandable rod (18) being inserted in said groove (8). Un corps (4) d'anneau de levage suivant la revendication 10, caractérisé en ce qu'un collier de serrage maintient le jonc comprimé en place préalablement à une insertion de la broche lisse (6) dans un logement (10) approprié.A lifting ring body (4) according to claim 10, characterized in that a clamp keeps the compressed rod in place prior to insertion of the smooth pin (6) in a suitable housing (10).
    EP00870131A 2000-06-15 2000-06-15 Lifting ring Expired - Lifetime EP1164106B1 (en)

    Priority Applications (6)

    Application Number Priority Date Filing Date Title
    ES00870131T ES2274774T3 (en) 2000-06-15 2000-06-15 ELEVATION RING
    PT00870131T PT1164106E (en) 2000-06-15 2000-06-15 Lifting ring
    DE60031840T DE60031840T2 (en) 2000-06-15 2000-06-15 lifting ring
    AT00870131T ATE345307T1 (en) 2000-06-15 2000-06-15 LIFTING RING
    EP00870131A EP1164106B1 (en) 2000-06-15 2000-06-15 Lifting ring
    US09/880,568 US6478350B2 (en) 2000-06-15 2001-06-13 Pivoting lifting ring

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP00870131A EP1164106B1 (en) 2000-06-15 2000-06-15 Lifting ring

    Publications (2)

    Publication Number Publication Date
    EP1164106A1 true EP1164106A1 (en) 2001-12-19
    EP1164106B1 EP1164106B1 (en) 2006-11-15

    Family

    ID=8175765

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00870131A Expired - Lifetime EP1164106B1 (en) 2000-06-15 2000-06-15 Lifting ring

    Country Status (6)

    Country Link
    US (1) US6478350B2 (en)
    EP (1) EP1164106B1 (en)
    AT (1) ATE345307T1 (en)
    DE (1) DE60031840T2 (en)
    ES (1) ES2274774T3 (en)
    PT (1) PT1164106E (en)

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    CN100377984C (en) * 2001-12-21 2008-04-02 Rud-链条制造里格尔及迪茨两合公司 Attaching device for attaching stopping or lashing means

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    DE10236408A1 (en) * 2002-08-02 2004-02-26 Demag Cranes & Components Gmbh Suspension of a load hook, especially for the underbottles of hoists
    US7067913B2 (en) * 2004-08-13 2006-06-27 Dtnr Ltd. Semiconductor cooling system and process for manufacturing the same
    JOP20140215B1 (en) 2013-07-10 2023-03-28 Esco Group Llc Connector to facilitate lifting of wear parts
    US10260597B2 (en) * 2016-01-26 2019-04-16 Gregory Kutsen Swivel device and method of use thereof
    DE102016211078A1 (en) * 2016-06-21 2017-12-21 Rud Ketten Rieger & Dietz Gmbh U. Co. Kg Anchor point for insertion into an undercut opening
    US10207902B2 (en) 2016-09-01 2019-02-19 Mjt Holdings, Llc Load-mountable lift eye assembly
    USD803668S1 (en) 2016-09-01 2017-11-28 Mjt Holdings, Llc Load-mountable lifting eye
    USD840794S1 (en) 2017-11-27 2019-02-19 Mjt Holdings, Llc Load-mountable lift eye
    EP4328170A1 (en) * 2022-08-22 2024-02-28 J.D. Theile GmbH & Co. KG Arrangement with a material having an opening and with a lifting end piece and related lifting end piece

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    FR2110367A3 (en) * 1970-10-12 1972-06-02 Programmed & Remote Syst Corp
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    EP0365430A1 (en) * 1988-10-21 1990-04-25 Marc Lecourt Lifting ring for laterally accepting heavy loads
    WO1990010803A1 (en) * 1989-03-15 1990-09-20 Lars Fredriksson Swivel coupling device
    DE4240090A1 (en) * 1992-11-28 1994-06-01 Leistritz Ag Automatic load coupling unit for crane - consists of crane tackle upper part with pivoted hook segments which enter bore of load mounted lower part and swing out to hook behind shoulder of bore
    DE4336780A1 (en) * 1993-10-25 1995-04-27 Rud Ketten Rieger & Dietz Ring bolt

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    US4802700B1 (en) * 1987-11-09 1996-10-01 Transguard Ind Inc Locking seal
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    GB229557A (en) * 1924-06-06 1925-02-26 Nydqvist & Holm Ab Improvements in or relating to detachable couplings for lifting ropes and the like
    FR2110367A3 (en) * 1970-10-12 1972-06-02 Programmed & Remote Syst Corp
    DE8406130U1 (en) * 1984-02-29 1984-04-12 J. D. Theile GmbH & Co KG, 5840 Schwerte STOP SWIVEL
    EP0365430A1 (en) * 1988-10-21 1990-04-25 Marc Lecourt Lifting ring for laterally accepting heavy loads
    WO1990010803A1 (en) * 1989-03-15 1990-09-20 Lars Fredriksson Swivel coupling device
    DE4240090A1 (en) * 1992-11-28 1994-06-01 Leistritz Ag Automatic load coupling unit for crane - consists of crane tackle upper part with pivoted hook segments which enter bore of load mounted lower part and swing out to hook behind shoulder of bore
    DE4336780A1 (en) * 1993-10-25 1995-04-27 Rud Ketten Rieger & Dietz Ring bolt

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    CN100377984C (en) * 2001-12-21 2008-04-02 Rud-链条制造里格尔及迪茨两合公司 Attaching device for attaching stopping or lashing means

    Also Published As

    Publication number Publication date
    EP1164106B1 (en) 2006-11-15
    US20020005645A1 (en) 2002-01-17
    DE60031840T2 (en) 2007-04-19
    ATE345307T1 (en) 2006-12-15
    ES2274774T3 (en) 2007-06-01
    US6478350B2 (en) 2002-11-12
    PT1164106E (en) 2007-02-28
    DE60031840D1 (en) 2006-12-28

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