FR2911591A1 - Ring for laterally lifting heavy load, has maintaining unit for maintaining screw in cross piece and constituted of bands, where bands are screwed in screw on both sides of cross piece and supported on cross piece - Google Patents
Ring for laterally lifting heavy load, has maintaining unit for maintaining screw in cross piece and constituted of bands, where bands are screwed in screw on both sides of cross piece and supported on cross piece Download PDFInfo
- Publication number
- FR2911591A1 FR2911591A1 FR0700446A FR0700446A FR2911591A1 FR 2911591 A1 FR2911591 A1 FR 2911591A1 FR 0700446 A FR0700446 A FR 0700446A FR 0700446 A FR0700446 A FR 0700446A FR 2911591 A1 FR2911591 A1 FR 2911591A1
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- FR
- France
- Prior art keywords
- screw
- cross piece
- bands
- ring
- constituted
- 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
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- 238000004873 anchoring Methods 0.000 description 4
- 238000003032 molecular docking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
Abstract
Description
La présente invention est relative à un anneau de levage pour la prise deThe present invention relates to a lifting ring for the taking of
charges lourdes. On connaît déjà des anneaux de levage pour la prise notamment latérale de charges lourdes. Ainsi dans le document EP-365.430-A est décrit un tel anneau de levage qui comprend un corps présentant une partie inférieure filetée destinée à se visser dans un trou taraudé de la charge à manipuler, une partie de tête d'un diamètre supérieure à celui de la partie support, une pièce intermédiaire montée pour tourner sur 360 autour de la partie de support, et une bande d'accrochage pivotant sur 360 autour d'axes radiaux saillants de la pièce intermédiaire : ces éléments constitutifs de l'anneau de levage forment un corps monobloc et une portion inférieure de la partie de support du corps fait saillie hors de la pièce intermédiaire pour s'engager dans une partie supérieure du trou de façon à soulager la partie inférieure filetée du corps en absorbant, en utilisation, la majeure partie des effets de torsion. Le document FR-2.723.770-A concerne lui aussi un anneau de levage non démontable comprenant un axe qui présente un corps fileté destiné à se visser dans un trou taraudé de la charge à manipuler et une tête, une pièce intermédiaire forgée et monobloc qui est montée pour tourner sur 360 autour de l'axe et une bande d'accrochage pivotant sur 360 autour d'axes radiaux saillants de la pièce intermédiaire : une embase d'appui taraudée est vissée sur le corps et est bloquée sur celui-ci, la pièce intermédiaire tournant autour de l'embase en étant maintenue axialement entre les parties saillantes en regard de l'embase et de la tête. Enfin, le document EP-179.733-A est relatif à un dispositif de liaison pour ancrer des moyens de levage ou d'amarrage sur des objets à transporter ou amarrer comprenant un élément d'ancrage servant à l'ancrer à l'objet considéré, un élément de fixation présentant un anneau de fixation pour le moyen de levage ou d'amarrage, et un élément de liaison qui relie l'élément d'ancrage à l'élément de fixation, et qui est tourillonné avec l'élément d'ancrage pour tourner autour de l'axe longitudinal de cet élément. L'élément de fixation peut osciller autour d'un axe d'oscillation qui s'étend à une certaine distance de l'axe longitudinal de l'élément d'ancrage et perpendiculairement à cet axe, et la distance ci-dessus étant suffisamment grande pour que l'anneau de fixation de l'élément de fixation puisse être rabattu par-dessus l'extrémité de l'élément d'ancrage qui retient l'élément de liaison. Cet élément de fixation est formé d'un étrier et d'une traverse qui relie les extrémités de cet étrier et qui forme un axe d'articulation de l'élément de liaison, ce dernier et l'élément étant tous deux sensiblement en forme de D, et la largeur libre maximum entre la partie de l'étrier qui est opposée de la traverse et l'élément de liaison étant plus petite dans la position de repos de l'élément de fixation que le diamètre d'un cercle inscrit dans l'anneau de fixation. Tous les anneaux de levage connus tels que ceux décrits ci-dessus présentent comme principal inconvénient de nécessiter la fabrication de pièces constitutives ayant ur coût de revient élevé notamment dû à la complexité de leur réalisation. Aussi, un des buts de la présente invention est-il de fournir un anneau de levage pour la prise de charges lourdes qui permet d'obvier aux inconvénients rapportés ci-dessus. heavy loads. Lifting rings are already known for taking, in particular, heavy loads. Thus in the document EP-365.430-A is described such a lifting ring which comprises a body having a threaded lower portion intended to be screwed into a tapped hole of the load to be handled, a head portion of a diameter greater than that of the support portion, an intermediate piece mounted to rotate 360 around the support portion, and a hooking strip pivoting 360 about radial axes projecting from the intermediate piece: these elements constituting the lifting ring form a one-piece body and a lower portion of the body support portion protrude from the intermediate piece to engage an upper portion of the hole so as to relieve the threaded lower portion of the body by absorbing, in use, most of the twisting effects. FR-2.723.770-A also relates to a non-removable lifting ring comprising an axis which has a threaded body intended to be screwed into a threaded hole of the load to be handled and a head, a forged intermediate piece and monoblock which is mounted to rotate about 360 about the axis and a hooking strip 360 about radial axes protruding from the intermediate piece: a threaded support base is screwed onto the body and is locked thereon, the intermediate piece rotating around the base being held axially between the projecting parts facing the base and the head. Finally, the document EP-179.733-A relates to a connecting device for anchoring lifting or docking means on objects to be transported or moored, comprising an anchoring element used to anchor it to the object under consideration. a fastening element having a fastening ring for the lifting or docking means, and a connecting element which connects the anchoring element to the fastening element, and which is journalled with the anchoring element to rotate around the longitudinal axis of this element. The fastener may oscillate about an axis of oscillation which extends at a distance from the longitudinal axis of the anchor member and perpendicular to that axis, and the distance above is sufficiently large so that the securing ring of the fastener can be folded over the end of the anchor which holds the connecting element. This fastening element is formed of a stirrup and a crossbar which connects the ends of this stirrup and which forms a hinge axis of the connecting element, the latter and the element being both substantially shaped. D, and the maximum free width between the part of the stirrup which is opposite the crossmember and the connecting element being smaller in the rest position of the fastening element than the diameter of a circle inscribed in the fixing ring. All known lifting rings such as those described above have the main disadvantage of requiring the manufacture of component parts having a high cost, particularly due to the complexity of their realization. Also, it is an object of the present invention to provide a lifting ring for heavy load taking which overcomes the disadvantages reported above.
Un autre but de l'invention est de fournir un tel anneau permettant d'utiliser toute longueur de vis. Ces buts, ainsi que d'autres qui apparaîtront par la suite, sont atteints par un anneau de levage pour la prise de charges lourdes du genre comprenant un étrier, une traverse qui est montée sur un axe rendu solidaire des extrémités libres de cet étrier et qui comporte un trou central de même axe que l'axe de symétrie de l'étrier, une vis coopérant avec ce trou central et des moyens pour maintenir en translation la vis dans la traverse, lequel anneau est caractérisé, selon la présente invention, par le fait que ces moyens sont constitués par deux bagues vissées sur la vis de part et d'autre de la traverse et prenant appui sur celle-ci. Another object of the invention is to provide such a ring to use any length of screw. These aims, as well as others which will appear later, are achieved by a lifting ring for the taking of heavy loads of the type comprising a stirrup, a crossbar which is mounted on an axis made integral with the free ends of this stirrup and which comprises a central hole of the same axis as the axis of symmetry of the stirrup, a screw cooperating with this central hole and means for maintaining in translation the screw in the crosspiece, which ring is characterized, according to the present invention, by the fact that these means are constituted by two rings screwed onto the screw on either side of the cross and bearing on it.
De préférence, chaque bague est constituée par un corps cylindrique dont le diamètre extérieur est inférieur au diamètre intérieur du trou central, surmonté d'une collerette formant épaulement dont le diamètre extérieur est supérieur au diamètre du trou central. Avantageusement, la somme des hauteurs des corps cylindriques des bagues est au plus égale à l'épaisseur de la traverse, aux jeux fonctionnels près. Selon une variante de réalisation, la traverse peut tourner librement autour de son axe. La description qui va suivre et qui ne présente aucun caractère limitatif, doit être lue en regard des figures annexées, parmi lesquelles : - la figure 1 représente une vue de face d'un anneau de levage selon un premier mode de réalisation de la présente invention avec arrachement partiel ; et, - la figure 2 représente une vue de face d'un anneau de levage selon un second mode de réalisation de la présente invention avec arrachement partiel. Ainsi qu'on peut le voir sur la figure 1, un anneau de levage pour la prise de charges lourdes est du genre comprenant un étrier 1, et une traverse 2 qui est montée sur un axe 3 rendu solidaire des extrémités de l'étrier 1 et, selon le premier mode de réalisation, autour duquel elle peut tourner librernent. Cette traverse 2 comporte un trou 4 d'axe perpendiculaire à l'axe 3: lorsque la traverse 2 est dans un plan perpendiculaire à celui de l'étrier 1, l'axe du trou 4 est le même que l'axe de symétrie de l'étrier 1. Selon une seconde variante de réalisation représentée à la figure 2, la traverse 2 est rendue immobile par rapport à l'étrier 1 : dans ce cas, elle est dans un plan sensiblement perpendiculaire à celui de l'étrier 1. La traverse 2 et l'axe 3 dans cette variante de réalisation font corps avec l'étrier 1. Preferably, each ring is constituted by a cylindrical body whose outer diameter is smaller than the inner diameter of the central hole, surmounted by a collar forming a shoulder whose outer diameter is greater than the diameter of the central hole. Advantageously, the sum of the heights of the cylindrical bodies of the rings is at most equal to the thickness of the cross member, to the functional clearances by. According to an alternative embodiment, the crossmember can rotate freely about its axis. The following description, which has no limiting character, should be read with reference to the appended figures, in which: FIG. 1 represents a front view of a lifting ring according to a first embodiment of the present invention; with partial tearing; and, - Figure 2 shows a front view of a hoisting ring according to a second embodiment of the present invention partially broken away. As can be seen in FIG. 1, a hoisting ring for the gripping of heavy loads is of the type comprising a stirrup 1, and a crossbar 2 which is mounted on an axis 3 made integral with the ends of the stirrup 1 and, according to the first embodiment, around which it can rotate freely. This crosspiece 2 has a hole 4 of axis perpendicular to the axis 3: when the crossbar 2 is in a plane perpendicular to that of the stirrup 1, the axis of the hole 4 is the same as the axis of symmetry of the stirrup 1. According to a second variant embodiment shown in FIG. 2, the crossmember 2 is made immobile with respect to the stirrup 1: in this case, it is in a plane substantially perpendicular to that of the stirrup 1. The cross-member 2 and the axis 3 in this embodiment form a part of the stirrup 1.
Cet anneau de levage comprend une vis 5 coopérant avec le trou 4 et des moyens pour bloquer en traction cette vis 5 dans ce trou 4. Selon la présente invention, ces moyens pour bloquer en traction cette vis 5 dans le trou 4 sont constitués par deux bagues 6 et 7 qui sont vissées sur cette vis 5 et viennent en appui sur la traverse 2. En effet, chaque bague 6 ou 7 comprend un corps cylindrique 8, 9 respectivement, dont le diamètre extérieur est inférieur au diamètre intérieur du trou surmonté d'une collerette 10, 11 respectivement, formant épaulement dont le diamètre extérieur est supérieur au diamètre du trou 4. La hauteur du corps de chaque bague est telle que leur somme soit au plus égale à l'épaisseur de la traverse aux jeux fonctionnels près. This lifting ring comprises a screw 5 cooperating with the hole 4 and means for locking in tension this screw 5 in this hole 4. According to the present invention, these means for locking in tension this screw 5 in the hole 4 are constituted by two rings 6 and 7 which are screwed on this screw 5 and rest on the cross member 2. In fact, each ring 6 or 7 comprises a cylindrical body 8, 9 respectively, whose outer diameter is smaller than the inside diameter of the hole topped with a flange 10, 11, respectively, forming a shoulder whose outer diameter is greater than the diameter of the hole 4. The height of the body of each ring is such that their sum is at most equal to the thickness of the crosshead near functional play.
La bague supérieure 6 peut ne pas être filetée mais au diamètre nominal de la vis 5. Selon un mode de réalisation préféré de l'invention, cette somme est égale à l'épaisseur de la traverse, aux jeux fonctionnels près. Ainsi que l'aura compris l'homme du métier, un anneau selon la présente invention peut être utilisé avec toute longueur de vis : en effet, la vis 5 est bloquée en traction grâce aux bagues 6 et 7 puisque celles-ci par leur épaulement prennent la traverse 2 en sandwich. Bien évidemment, la tête de la vis 5 comporte des moyens pour coopérer avec tout moyen de vissage. The upper ring 6 may not be threaded but the nominal diameter of the screw 5. According to a preferred embodiment of the invention, this sum is equal to the thickness of the cross member, functional play near. As will be understood by those skilled in the art, a ring according to the present invention can be used with any length of screw: indeed, the screw 5 is locked in traction thanks to the rings 6 and 7 since they by their shoulder take the cross 2 sandwich. Of course, the head of the screw 5 comprises means for cooperating with any screwing means.
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0700446A FR2911591B1 (en) | 2007-01-23 | 2007-01-23 | LIFT RING FOR HEAVY LOADING. |
FR0700834A FR2911592B1 (en) | 2007-01-23 | 2007-02-06 | LIFTING RING FOR LOURDES LOADING |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0700446A FR2911591B1 (en) | 2007-01-23 | 2007-01-23 | LIFT RING FOR HEAVY LOADING. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2911591A1 true FR2911591A1 (en) | 2008-07-25 |
FR2911591B1 FR2911591B1 (en) | 2009-04-17 |
Family
ID=38420580
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0700446A Active FR2911591B1 (en) | 2007-01-23 | 2007-01-23 | LIFT RING FOR HEAVY LOADING. |
FR0700834A Active FR2911592B1 (en) | 2007-01-23 | 2007-02-06 | LIFTING RING FOR LOURDES LOADING |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0700834A Active FR2911592B1 (en) | 2007-01-23 | 2007-02-06 | LIFTING RING FOR LOURDES LOADING |
Country Status (1)
Country | Link |
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FR (2) | FR2911591B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103738831A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁百兰斯科技开发有限公司 | Ear-shaped lifting ring |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4558979A (en) * | 1981-09-28 | 1985-12-17 | Andrews Gary E | Fastening device |
FR2723770A1 (en) * | 1994-08-18 | 1996-02-23 | Lecourt Marc | LIFTING RING FOR THE LATERAL TAKING OF LOADS |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3905633A (en) * | 1974-09-30 | 1975-09-16 | Caterpillar Tractor Co | Swivel mounted lifting eye for engines |
US4431352A (en) * | 1981-09-28 | 1984-02-14 | Andrews Gary E | Fastening device |
WO1990010803A1 (en) * | 1989-03-15 | 1990-09-20 | Lars Fredriksson | Swivel coupling device |
DE10013845C2 (en) * | 2000-03-15 | 2003-04-24 | Rud Ketten Rieger & Dietz | connecting device |
-
2007
- 2007-01-23 FR FR0700446A patent/FR2911591B1/en active Active
- 2007-02-06 FR FR0700834A patent/FR2911592B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4558979A (en) * | 1981-09-28 | 1985-12-17 | Andrews Gary E | Fastening device |
FR2723770A1 (en) * | 1994-08-18 | 1996-02-23 | Lecourt Marc | LIFTING RING FOR THE LATERAL TAKING OF LOADS |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103738831A (en) * | 2013-12-20 | 2014-04-23 | 广西南宁百兰斯科技开发有限公司 | Ear-shaped lifting ring |
Also Published As
Publication number | Publication date |
---|---|
FR2911592A1 (en) | 2008-07-25 |
FR2911591B1 (en) | 2009-04-17 |
FR2911592B1 (en) | 2009-07-17 |
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