WO2017064374A1 - Dynamic anchor for lifting a building element, with means for fixedly holding a handling ring yoke - Google Patents

Dynamic anchor for lifting a building element, with means for fixedly holding a handling ring yoke Download PDF

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Publication number
WO2017064374A1
WO2017064374A1 PCT/FR2015/053778 FR2015053778W WO2017064374A1 WO 2017064374 A1 WO2017064374 A1 WO 2017064374A1 FR 2015053778 W FR2015053778 W FR 2015053778W WO 2017064374 A1 WO2017064374 A1 WO 2017064374A1
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WO
WIPO (PCT)
Prior art keywords
anchor
flat
head
lifting
lateral
Prior art date
Application number
PCT/FR2015/053778
Other languages
French (fr)
Inventor
Marcel Arteon
Original Assignee
Marcel Arteon
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 Marcel Arteon filed Critical Marcel Arteon
Publication of WO2017064374A1 publication Critical patent/WO2017064374A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/142—Means in or on the elements for connecting same to handling apparatus
    • 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
    • B66C1/666—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 for connection to anchor inserts embedded in concrete structures

Definitions

  • the invention relates to a dynamic lifting anchor, a construction element, such as a concrete panel in particular, cast horizontally, for lifting said panel without mechanical means or additional reinforcements.
  • the passage opening 4 of the head of the anchor serves to secure the anchor to a lifting / raising / reversing ring 6 which consists of a connection piece (or nut) 7 with the head of the anchor and a ring proper 6 or shackle which provides the connection between the connecting piece and the hook of the lifting / lifting / reversing machine.
  • the ergot of the anchor does not allow to limit this clearance satisfactorily, which is detrimental to the lifting of particularly fragile or heavy construction elements.
  • the invention aims to overcome these disadvantages.
  • the invention provides a simple and satisfactory solution to limit the movement of the nut relative to the shackle to work safely.
  • the invention relates to an anchor for lifting, lifting or reversing a construction element, comprising a head portion capable of being hooked to a gripping apparatus via a connecting piece such that a ring nut, the anchor extending in a main plane along a main axis and being obtained by folding at least one flat, the anchor defining different successive portions respectively forming the head, a body and a foot for the anchor.
  • the head of the anchor comprises at least one end base serving as a holding stop at a fixed position of the connecting piece during lifting, this end base extending in a plane outside the main plane of the flat.
  • the invention may furthermore have one or both of the following aspects:
  • the end base extends perpendicularly to the plane of the flat.
  • the anchor comprises two end bases positioned respectively along the two side edges of the flat.
  • the end base is obtained by folding a flat portion outside the main plane being folded from a side edge of the head of the anchor.
  • the base extends outside the flat plane over a length of at least twice the thickness of the flattened
  • the head of the anchor comprises at least one lateral lug extending along the main plane of the flat and beyond a front edge of the anchor head, and in that the end base forms an extension of the lateral lug outside the main plane of the flat.
  • the end base protrudes from the front edge of the head of the anchor by a distance at least equal to the thickness of the flat.
  • the head of the anchor comprises a short lateral edge set back with respect to the front edge of the anchor head, and in that the end base forms an extension of the short lateral edge outside the main plane of the anchor. flat.
  • the anchor comprises a cutout forming a passage opening of an elongate reinforcing element, such as a concrete or reinforcing steel formed opposite a base opposite the axis of the anchor .
  • the cut is formed on an extension of the body of the anchor located on one side of the lateral edge of the flat part considered
  • the anchor comprises two fins or opposite flaps (e) s of reinforcement obtained by cutting and folding the flat or by stamping.
  • the fins comprise openings for the passage of a reinforcing element such as a concrete reinforcing bar or an armature.
  • the anchor is formed of two identical flats assembled to each other back to back or on either side of a reinforcement.
  • the invention also relates to a lifting assembly, lifting or reversal of a construction element, comprising an anchor as described above and a connecting piece of the anchor to a gripping ring, the piece having a width 1, the anchor being provided with two lateral bases on which bears an upper face of the connecting piece during lifting.
  • the anchor comprises two pairs of lateral bases disposed respectively along the two lateral edges of the anchor, the two pairs of bases being separated from each other by a locking distance of the workpiece. connection to a fixed position during the handling of the construction element.
  • FIG. 1 is a perspective view of a first embodiment of the anchor according to the invention.
  • FIGS. 2 (a), 2 (b), 2 (c), 2 (d), 2 (e) represent for the first embodiment of FIG. 1:
  • FIG. 3 is a diagrammatic view of a view of an anchor of the state of the art, as positioned within a building element to be lifted, viewed from the front, engaged in a lifting ring via a a connecting piece or shackle
  • FIG. 4 is a view similar to that of FIG. 3 for an anchor according to the invention
  • FIGS. 5, 6, 7 and 8 represent, in perspective views, an anchor according to the invention as positioned within a building element to be lifted, according to respectively: a second embodiment of the invention
  • FIGS. 5 and 6 are a perspective view of an anchor according to the third embodiment of the assembled unassembled invention (FIG. 5) (FIG. 6)
  • the anchor according to the invention comprises a head part 1, a part 2 forming the body of the anchor and a part 3 forming the foot.
  • the anchor with the exception of the head 1 which remains outside the material of the construction element and is adapted to be attached to a handling machine, is intended to be embedded in the constituent material of the construction element whose anchor is intended to facilitate handling.
  • this element of construction can be a slab or a concrete panel and the head 1 of the anchor is accessible from a free edge of the panel in which has been practiced a recess or "reservation" authorizing the passing of the head 1 of the anchor, while the body 2 and foot 3 of the anchor are immersed in the concrete.
  • the passage opening 4 of the head of the anchor serves to secure the anchor to a lifting / raising / reversing ring 6 which consists of a connection piece (or nut) 7 with the head of the anchor and a ring proper 6 or shackle which provides the connection between the connecting piece and the hook of the lifting / lifting / reversing machine.
  • the anchor extends "lying" that is to say horizontally, with its main plane P parallel to the vertical (see Figure 4).
  • the head of the anchor according to the invention, in order to limit the clearance of the nut 7 relative to the shackle 6, and thus work safely, the head of the anchor according to the invention comprises at least one safety base 8 serving as an abutment maintaining a fixed position of the nut during lifting, this end base extending along a plane outside the main plane of the flat, more precisely, preferably perpendicularly to the main plane P of the flat.
  • the safety base thus makes it possible to protect the concrete, to lock the ring nut in the horizontal position and serves as a stop to keep the shackle of the ring vertical at the beginning of the lifting.
  • the anchor comprises at least a first pair of bases 8 whose two bases are located on either side of the same side edge of the anchor defining an upper edge 9 for the anchor in the construction element disposed horizontally and extending horizontally on either side of the head of the anchor.
  • These two bases 8 serve as stops on the upper surface of the nut 7 during lifting so that it maintains a fixed and stable position with respect to the head of the anchor, in this case, parallel to the axis of the flat.
  • the ring can thus adopt stable positions during lifting without being affected by instability of the position of the nut 7.
  • the anchor comprises a second pair of bases 11 extending horizontally on either side of the lower edge 12 of the anchor as shown in Figure 4 and which define with the first pair of bases 8 a receiving housing and fixed maintenance of the nut 7 by forming stops for both its upper face and its lower face.
  • This second pair of bases 11 provides multiple functions among eliminating / reducing the shearing effect of the concrete in the upper part of the anchor during lifting, and also the possibility of possibly coming to hang an iron or a frame and thus remove / lessen the shearing effect of this iron or of this frame by spreading on several zones the places likely to be sheared.
  • the anchor is provided with one or two pairs of bases 8, 11, they can be obtained by folding a portion of the constituent flat of the anchor.
  • a first pair of base can be formed by folding along each edge rear side 9a, 9b of the two flats, a flat portion laterally extending the head of the anchor and which is folded perpendicular to the head of the anchor.
  • This flat portion extends a lug 16a of the head of the anchor protruding from the upper central front edge 17a of the head of the anchor by a distance substantially equal to the thickness of the flat part being separated from this front edge 17a by a beveled edge 21a.
  • This distance may vary between one and ten thicknesses of flat and will be adapted between the function of the articulation of the ring vis-a-vis the nut and the dimensions of these in order to obtain an abutment of the shackle of the ring in vertical position at the beginning of lifting (figure 4).
  • the bases may have other shapes than the substantially triangular shape of Figures 1 and 2, such as a rectangular shape ( Figure 7) or that of a parallelogram ( Figure 8).
  • the rear face 19a, 19b of the bases is located in the same plane as the rear edge 21a, 21b of the rigidity box.
  • a base may, in accordance with Figure 5 for the bases 11a, 11B, extend the head portion of the recessed flat opposite the upper front edge 17a and separated from that ci by the beveled edge 21a.
  • the base 11 is then set back from the upper front edge along the axis of the anchor, a distance of about a flattened thickness, this distance may vary between one and ten thicknesses of flat and will be adapted between function of the articulation of the ring with respect to the nut and the dimensions of these.
  • the head of the anchor which is provided with the bases for holding the nut may have different shapes and be provided with different elements such as lateral lugs, an anchor locking pin vertically which is introduced into a hole complementary formed within the reservation.
  • the constituent flats of the twin flats and that constituting the reinforcement when the anchor is provided can be secured to each other, for example by rivets.
  • the anchor When the anchor is provided with a central reinforcement, it comprises a passage opening 26 of the ring nut of lower height h2 than those (h1) of the two identical orifices of the lateral flats, for example 5 at 20% lower.
  • the relative dimensions of the respective heights of the orifice formed in the reinforcement and of the orifice formed in each of the two flats to be twinned, are in fact ideally chosen to ensure that the ring nut comes into contact with the edge.
  • the orifice of the reinforcement preferably and / or in addition to the edge of the orifice of each flat to be twinned. The contact between the nut and the flat part of the reinforcement then takes place along the two lines 20 delimiting laterally the portion defining the orifice of the reinforcement.
  • the contact between the nut and each flat to be twinned is effected along the outer line 25 of the slice defining the orifice. It would also be possible for the slices defining the reinforcing orifices and the flats to be twinned, to have particular profiles, for example curved according to a profile complementary to that of the opposite portion of walnut which passes through these orifices, to allow surface contact between the nut and the various constituent flats of the anchor.
  • Various embodiments of lifting / lifting / reversing anchors formed by the assembly of two flats, provided with bases for holding the ring nut, according to the invention, are described below:
  • This anchor is simple and inexpensive construction while allowing use in lifting, lifting with fixed maintenance of the position of the nut.
  • This anchor comprises two flats 12a, 12b assembled on either side of a third flat 22 forming a central reinforcement 22 which can extend along the anchor from the head, and for example on half of the length of the anchor from the head.
  • the two paired flats are each provided with a base 8a of generally triangular general shape, the two bases forming according to Figure 2 (e) a pair of bases extending perpendicularly to the main plane of the flat, at the edge 9a the base being found to define an upper edge for the anchor when it is disposed within a building element to be raised.
  • These bases are obtained by folding a flat portion extending the lug 16a, the other lug 15a of the head of the anchor being devoid of such an extension.
  • the central reinforcement is of course optional.
  • the two flats and the central reinforcement 22 each comprise a lateral extension 23 located under the orifice 4 for passage of the ring nut, and extending on one side of the lateral edge 24 of the head, opposite the bases 8a. , 8b.
  • the extension 23 makes it possible to position the iron more deeply within the construction element in a horizontal position and thus makes it possible to increase the compression generated by the iron or reinforcement during the lift / tilt.
  • the iron or armature is shown in dotted lines to indicate the fact that he / she is optional. However, this iron or this frame may for example be necessary when the anchor is used in lifting, it is then disposed within the horizontal construction element, with the iron or the armature at the bottom, and the support bases fixed ring nut, in high position.
  • the anchor of Figures 1 and 2 is asymmetrical in that it must be arranged in a particular direction within the building element to be raised to arrange the support bases of the nut, in the upper part, and the iron or the lifting frame, in the lower part of the construction element.
  • the anchor of FIG. 5 is symmetrical in the sense that it comprises two pairs of bases 8 and 11 arranged respectively along the two lateral edges of the anchor and on the other hand.
  • iron or optional armor / can be arranged on a median line of the anchor.
  • a first pair of bases 8 extends the lugs 16 of the two flats and is found in the upper part of the building element to be raised from a horizontal position. These two bases 8 and exceed the front edge 17a, 17b of each flat head a distance of about a flat thickness.
  • the second pair of bases 11 extends the short side edges 28 set back from the front edge 17a, 17b and is found in the lower part of the building element to be raised from a horizontal position. These two bases 11 are thus set back from the front edge 17a, 17b of each flat head by a distance of about a flat thickness.
  • a central slot 32 originating beneath the orifice for passage of the nut 7 and opening on the lower edge 33 of the foot of the anchor, for example a width of about 1/3 of that of the anchor .
  • the flat portion of the reinforcement located on the site of the slot is cut and removed, and the two twin flats are also cut and the flat portions located on the site of the slot, are either completely removed, or used to form on either side of the anchor, two optional opposite flaps 34, 35 increasing the resistance of the anchor to lifting and turning.
  • This anchor is of more complex structure than that of Figures 1 and 2 but has the advantage of its symmetry allowing it to be used also in inversion, the two pairs of bases 8 and 11 serving as a stop for the ring nut in the direction of lifting and removal of the building element once returned, and the iron or armature which is arranged on the median of the anchor can be found at the same depth in the building element in the direction of lifting and removal of the building element once returned without risking a bursting of the concrete during one or other of these movements due to the presence of the iron or the frame.
  • the anchor of FIG. 6 is asymmetric type described above with a single pair of upper bases 8.
  • this anchor does not include an extension 23 as provided for the variant embodiment of Figures 1 and 2, but a three-dimensional fin 36 obtained by stamping within each paired flat 12a, 12b.
  • This fin is delimited in the illustrated example, by two oblique lines 37, 38 opening respectively on the short side edge 28 of the head of the anchor and at the junction 30 of the lateral edge of the body of the anchor and the first line fold 42 of the foot of the anchor, and a contour extending beyond the short side edge 28.
  • the two fins 36 thus defined may be sufficient for the definition of a compression cone sufficient for lifting, especially for structural elements made of hard concrete.
  • the anchors of FIGS. 7 and 8 are of the symmetrical type since they each comprise two pairs of bases 8 and 11, with the particularity for the anchor of FIG. 8 that each of the two base pairs 8, 11 extends from a lateral lug 16 of the head.
  • the means ensuring the lifting are in these embodiments a flat shutter 41 extending over a portion of the body of the anchor and obtained by folding a flat portion out of the main plane of the flat along a line folding.
  • this flap 41 is short and extends over substantially half of the body of the anchor near his foot 3.
  • the space between the head and the flap 41 is used for the passing an iron or a frame through a hole 42 made in the two twin flats and in the reinforcement 22 and opening on the side edge of each of these flats.
  • the bases 11 of the lower pair are furthermore used to complete the passage formed for the through hole 42 by being extended towards the flap at this hole 42.
  • this flap is long and of generally triangular general shape 44 and extends over the entire body of the anchor. It is obtained by folding a flat portion along a line 46 inclined with respect to the median line of the body of the anchor towards the foot of the anchor to open on the lateral edge of the body of the anchor. 'anchor. It is provided at its free apex 47 with a hole for the passage of an iron or armature, which will pass under the body of the anchor positioned in the building element to be raised occupying its horizontal position.
  • the anchors described above may optionally include:
  • the plate can be folded and / or shaped to receive an iron or frame the plate then being provided with closed or open grooves for the passage of an iron or an armature
  • fins or louvers forming an inclination at 10, 20, ... 45 [deg.] below a horizontal plane when the anchor is disposed within the coated structural element before its lifting.
  • these flats In order to allow their folding along the fold lines A-D, these flats have a thickness generally less than 15 mm.
  • the reinforcement may be attached to the two flats by rivets at the head of the anchor and / or the body of the anchor or by folding the top and bottom ends of the anchor.
  • the anchor according to the invention has major advantages over the anchors of the state of the art with the possibility of eliminating the complementary bonding iron.
  • An anchor of this type is made by a simple and inexpensive manufacturing process, based on the folding of a single or two flattened optionally reinforced (associated with a reinforcement) allows to perform the lifting, lifting, reversal of relatively heavy construction elements.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention concerns an anchor for lifting, raising or turning a building element, comprising a head portion able to be fastened to a gripping machine via a connection part such as a ring yoke, the anchor extending over a main plane along a main axis and being obtained by folding at least one flat section, the anchor defining various successive portions respectively forming the head, a body and a foot for the anchor. According to the invention, the anchor head comprises at least one end base (8, 11) acting as a stop for holding the connection part in a fixed position while raising, said end base extending in a plane outside the main plane of the flat section.

Description

ANCRE DYNAMIQUE DE LEVAGE D'UN ELEMENT DE CONSTRUCTION, AVEC MOYENS DE MAINTIEN FIXE D'UNE NOIX D'ANNEAU DE MANUTENTION  DYNAMIC ANCHOR FOR LIFTING A BUILDING ELEMENT, WITH MEANS FOR FIXED RETENTION OF A HAND RING NUT HANDLING
L'invention concerne une ancre dynamique de levage, d'un élément de construction, tel qu'un panneau de béton notamment, coulé à l'horizontale, permettant de soulever le dit panneau sans moyens mécaniques ni sans armatures supplémentaires. The invention relates to a dynamic lifting anchor, a construction element, such as a concrete panel in particular, cast horizontally, for lifting said panel without mechanical means or additional reinforcements.
Conformément à la figure 3, l'orifice de passage 4 de la tête de l'ancre sert à solidariser l'ancre à un anneau de levage/relevage/retournement 6 qui se compose d'une pièce de raccordement (ou noix) 7 avec la tête de l'ancre et d'un anneau proprement dit 6 ou manille qui assure la liaison entre la pièce de raccordement et le crochet de l'engin de levage/relevage/retournement.  According to FIG. 3, the passage opening 4 of the head of the anchor serves to secure the anchor to a lifting / raising / reversing ring 6 which consists of a connection piece (or nut) 7 with the head of the anchor and a ring proper 6 or shackle which provides the connection between the connecting piece and the hook of the lifting / lifting / reversing machine.
Etat de l'art et ses inconvénients State of the art and its disadvantages
Lors d'un relevage d'un élément de construction depuis une position horizontale jusqu'à une position verticale, il faut limiter le débattement de la noix par rapport à la manille afin de travailler en toute sécurité, même avec des panneaux minces. When lifting a building element from a horizontal position to a vertical position, it is necessary to limit the movement of the nut relative to the shackle in order to work safely, even with thin panels.
Cependant, l'ergot de l'ancre ne permet pas de limiter de façon satisfaisante ce débattement, ce qui est préjudiciable au relevage d'éléments de construction particulièrement fragiles ou lourds.  However, the ergot of the anchor does not allow to limit this clearance satisfactorily, which is detrimental to the lifting of particularly fragile or heavy construction elements.
L'invention vise à pallier ces inconvénients. The invention aims to overcome these disadvantages.
Exposé de l'invention Presentation of the invention
L'invention propose une solution simple et satisfaisante afin de limiter le débattement de la noix par rapport à la manille afin de travailler en toute sécurité. A cet effet, l'invention concerne une ancre de levage, relevage ou retournement d'un élément de construction, comprenant une partie de tête susceptible d'être accrochée à un engin de préhension par l'intermédiaire d'une pièce de raccordement telle qu'une noix d'anneau, l'ancre s'étendant suivant un plan principal le long d'un axe principal et étant obtenue par repliement d'au moins un méplat, l'ancre définissant différentes portions successives formant respectivement la tête, un corps et un pied pour l'ancre. The invention provides a simple and satisfactory solution to limit the movement of the nut relative to the shackle to work safely. For this purpose, the invention relates to an anchor for lifting, lifting or reversing a construction element, comprising a head portion capable of being hooked to a gripping apparatus via a connecting piece such that a ring nut, the anchor extending in a main plane along a main axis and being obtained by folding at least one flat, the anchor defining different successive portions respectively forming the head, a body and a foot for the anchor.
Selon l'invention, la tête de l'ancre comprend au moins une embase d'extrémité servant de butée de maintien à une position fixe de la pièce de raccordement lors du relevage, cette embase d'extrémité s'étendant suivant un plan en dehors du plan principal du méplat.  According to the invention, the head of the anchor comprises at least one end base serving as a holding stop at a fixed position of the connecting piece during lifting, this end base extending in a plane outside the main plane of the flat.
L'invention peut par ailleurs présenter l'un et/ou l'autre des aspects suivants : - L'embase d'extrémité s'étend perpendiculairement au plan du méplat. The invention may furthermore have one or both of the following aspects: The end base extends perpendicularly to the plane of the flat.
- L'ancre comprend deux embases d'extrémité positionnées respectivement le long des deux bords latéraux du méplat. - L'embase d'extrémité est obtenue par repliement d'une partie de méplat en dehors du plan principal en étant repliée à partir d'un bord latéral de la tête de l'ancre. - The anchor comprises two end bases positioned respectively along the two side edges of the flat. - The end base is obtained by folding a flat portion outside the main plane being folded from a side edge of the head of the anchor.
- L'embase s'étend en dehors du plan du méplat sur une longueur d'au moins deux fois l'épaisseur du méplat - The base extends outside the flat plane over a length of at least twice the thickness of the flattened
- La tête de l'ancre comprend au moins un ergot latéral s'étendant suivant le plan principal du méplat et au-delà d'un bord frontal de la tête d'ancre, et en ce que l'embase d'extrémité forme un prolongement de l'ergot latéral en dehors du plan principal du méplat. - The head of the anchor comprises at least one lateral lug extending along the main plane of the flat and beyond a front edge of the anchor head, and in that the end base forms an extension of the lateral lug outside the main plane of the flat.
- L'embase d'extrémité dépasse du bord frontal de la tête de l'ancre d'une distance au moins égale à l'épaisseur du méplat. - The end base protrudes from the front edge of the head of the anchor by a distance at least equal to the thickness of the flat.
- La tête de l'ancre comprend un bord latéral court en retrait vis à vis du bord frontal de la tête d'ancre, et en ce que l'embase d'extrémité forme un prolongement du bord latéral court en dehors du plan principal du méplat. The head of the anchor comprises a short lateral edge set back with respect to the front edge of the anchor head, and in that the end base forms an extension of the short lateral edge outside the main plane of the anchor. flat.
- L'ancre comprend une découpe formant une ouverture de passage d'un élément de renfort longiligne, tel qu'un fer à béton ou une armature formée à l'opposé d'une embase vis à vis de l'axe de l'ancre. - La découpe est formée sur une extension du corps de l'ancre située d'un côté du bord latéral du méplat considéré - The anchor comprises a cutout forming a passage opening of an elongate reinforcing element, such as a concrete or reinforcing steel formed opposite a base opposite the axis of the anchor . - The cut is formed on an extension of the body of the anchor located on one side of the lateral edge of the flat part considered
- L'ancre comprend deux ailettes ou volets opposé(e)s de renforcement obtenu(e)s par découpe et pliage du méplat ou par estampage. - The anchor comprises two fins or opposite flaps (e) s of reinforcement obtained by cutting and folding the flat or by stamping.
- Les ailettes comprennent des ouvertures de passage d'un élément de renfort tel qu'un fer à béton ou une armature. The fins comprise openings for the passage of a reinforcing element such as a concrete reinforcing bar or an armature.
- L'ancre est formée de deux méplats identiques assemblés l'un à l'autre dos à dos ou de part et d'autre d'un renfort. - The anchor is formed of two identical flats assembled to each other back to back or on either side of a reinforcement.
L'invention concerne également un ensemble de levage, relevage ou retournement d'un élément de construction, comprenant une ancre telle que décrite précédemment et une pièce de raccordement de l'ancre à un anneau de préhension, la pièce présentant une largeur 1, l'ancre étant pourvue de deux embases latérales sur lesquelles vient en appui une face supérieure de la pièce de raccordement lors du relevage. Avantageusement, l'ancre comprend deux paires d'embases latérales disposées respectivement le long des deux bords latéraux de l'ancre, les deux paires d'embases étant séparées l'une de l'autre d'une distance de blocage de la pièce de raccordement à une position fixe lors de la manutention de l'élément de construction. The invention also relates to a lifting assembly, lifting or reversal of a construction element, comprising an anchor as described above and a connecting piece of the anchor to a gripping ring, the piece having a width 1, the anchor being provided with two lateral bases on which bears an upper face of the connecting piece during lifting. Advantageously, the anchor comprises two pairs of lateral bases disposed respectively along the two lateral edges of the anchor, the two pairs of bases being separated from each other by a locking distance of the workpiece. connection to a fixed position during the handling of the construction element.
L'invention sera maintenant décrite en référence aux figures annexées représentant schématiquement différents modes de réalisation de l'invention et parmi lesquelles : The invention will now be described with reference to the appended figures schematically representing various embodiments of the invention and among which:
La figure 1 représente par une vue en perspective d'un premier mode de réalisation de l'ancre selon l'invention  FIG. 1 is a perspective view of a first embodiment of the anchor according to the invention.
Les figures 2(a), 2(b), 2(c), 2(d), 2(e) représentent pour le premier mode de réalisation de la figure 1 :  FIGS. 2 (a), 2 (b), 2 (c), 2 (d), 2 (e) represent for the first embodiment of FIG. 1:
o Figure 2(a) : une vue de côté de l'un des méplats constitutifs de l'ancre, mis en forme tridimensionnelle pour définir un premier côté d'un caisson de rigidité  o Figure 2 (a): a side view of one of the constituent flats of the anchor, shaped three-dimensionally to define a first side of a rigidity box
o Figure 2(b) : une vue de face du méplat de la figure 1  o Figure 2 (b): a front view of the flat of Figure 1
o Figure 2(c) : une vue de côté du renfort de l'ancre de la figure 1 o Figure 2(d) : une vue de dessus de l'ancre de la figure 1  o Figure 2 (c): a side view of the anchor reinforcement of Figure 1 o Figure 2 (d): a top view of the anchor of Figure 1
la figure 3 illustre par une vue schématique une vue d'une ancre de l'état de la technique, telle que positionnée au sein d'un élément de construction à relever, vue de face, engagée dans un anneau de relevage par l'intermédiaire d'une pièce de raccordement ou manille  FIG. 3 is a diagrammatic view of a view of an anchor of the state of the art, as positioned within a building element to be lifted, viewed from the front, engaged in a lifting ring via a a connecting piece or shackle
la figure 4 est une vue analogue à celle de la figure 3 pour une ancre selon l'invention  FIG. 4 is a view similar to that of FIG. 3 for an anchor according to the invention
les figures 5, 6, 7 et 8 représentent par des vues en perspective, une ancre selon l'invention telle que positionnée au sein d'un élément de construction à relever, selon respectivement : o un deuxième mode de réalisation de l'invention FIGS. 5, 6, 7 and 8 represent, in perspective views, an anchor according to the invention as positioned within a building element to be lifted, according to respectively: a second embodiment of the invention
o un troisième mode de réalisation de l'invention  a third embodiment of the invention
o un quatrième mode de réalisation de l'invention  a fourth embodiment of the invention
o un cinquième mode de réalisation de l'invention  a fifth embodiment of the invention
les figures 5 et 6 représentent par une vue en perspective une ancre selon troisième mode de réalisation de l'invention non assemblée (figure 5) assemblée (figure 6)  FIGS. 5 and 6 are a perspective view of an anchor according to the third embodiment of the assembled unassembled invention (FIG. 5) (FIG. 6)
Conformément aux figures annexées, l'ancre selon l'invention comporte une partie de tête 1, une partie 2 formant le corps de l'ancre et une partie 3 formant le pied. According to the appended figures, the anchor according to the invention comprises a head part 1, a part 2 forming the body of the anchor and a part 3 forming the foot.
L'ancre, à l'exception de la tête 1 qui reste à l'extérieur du matériau de l'élément de construction et est adaptée pour être accrochée à un engin de manutention, est destinée à être noyée dans le matériau constitutif de l'élément de construction dont l'ancre est destinée à faciliter la manutention. The anchor, with the exception of the head 1 which remains outside the material of the construction element and is adapted to be attached to a handling machine, is intended to be embedded in the constituent material of the construction element whose anchor is intended to facilitate handling.
En général, cet élément de construction peut être une dalle ou un panneau de béton et la tête 1 de l'ancre est accessible depuis une tranche libre du panneau au sein de laquelle a été pratiqué un évidemment ou "réservation" autorisant le dépassement de la tête 1 de l'ancre, alors que le corps 2 et le pied 3 de l'ancre sont immergés dans le béton. In general, this element of construction can be a slab or a concrete panel and the head 1 of the anchor is accessible from a free edge of the panel in which has been practiced a recess or "reservation" authorizing the passing of the head 1 of the anchor, while the body 2 and foot 3 of the anchor are immersed in the concrete.
Conformément à la figure 4, l'orifice de passage 4 de la tête de l'ancre sert à solidariser l'ancre à un anneau de levage/relevage/retournement 6 qui se compose d'une pièce de raccordement (ou noix) 7 avec la tête de l'ancre et d'un anneau proprement dit 6 ou manille qui assure la liaison entre la pièce de raccordement et le crochet de l'engin de levage/relevage/retournement.  According to FIG. 4, the passage opening 4 of the head of the anchor serves to secure the anchor to a lifting / raising / reversing ring 6 which consists of a connection piece (or nut) 7 with the head of the anchor and a ring proper 6 or shackle which provides the connection between the connecting piece and the hook of the lifting / lifting / reversing machine.
Au sein d'un élément de construction à relever, l'ancre s'étend « couchée » c'est à dire à l'horizontale, avec son plan principal P parallèle à la verticale (voir figure 4). Conformément à l'invention, afin de limiter le débattement de la noix 7 par rapport à la manille 6, et ainsi travailler en toute sécurité, la tête de l'ancre selon l'invention comprend au moins une embase de sécurité 8 servant de butée de maintien à une position fixe de la noix lors du relevage, cette embase d'extrémité s'étendant suivant un plan en dehors du plan principal du méplat, plus précisément, avantageusement perpendiculairement au plan principal P du méplat. Within a building element to be raised, the anchor extends "lying" that is to say horizontally, with its main plane P parallel to the vertical (see Figure 4). According to the invention, in order to limit the clearance of the nut 7 relative to the shackle 6, and thus work safely, the head of the anchor according to the invention comprises at least one safety base 8 serving as an abutment maintaining a fixed position of the nut during lifting, this end base extending along a plane outside the main plane of the flat, more precisely, preferably perpendicularly to the main plane P of the flat.
L'embase de sécurité permet ainsi de protéger le béton, de bloquer la noix de l'anneau en position horizontale et vient servir de butée pour maintenir la manille de l'anneau à la verticale au commencement du relevage.  The safety base thus makes it possible to protect the concrete, to lock the ring nut in the horizontal position and serves as a stop to keep the shackle of the ring vertical at the beginning of the lifting.
Plus précisément, de préférence, l'ancre comprend au moins une première paire d'embases 8 dont les deux embases sont situées de part et d'autre d'un même bord latéral de l'ancre définissant un bord supérieur 9 pour l'ancre dans l'élément de construction disposé à l'horizontal, et s'étendant horizontalement de part et d'autre de la tête de l'ancre.  More specifically, preferably, the anchor comprises at least a first pair of bases 8 whose two bases are located on either side of the same side edge of the anchor defining an upper edge 9 for the anchor in the construction element disposed horizontally and extending horizontally on either side of the head of the anchor.
Ces deux embases 8 viennent servir de butées à la surface supérieure de la noix 7 lors du relevage afin que celle-ci conserve une position fixe et stable vis à vis de la tête de l'ancre, en l'occurrence, parallèle à l'axe du méplat.  These two bases 8 serve as stops on the upper surface of the nut 7 during lifting so that it maintains a fixed and stable position with respect to the head of the anchor, in this case, parallel to the axis of the flat.
L'anneau peut ainsi adopter des positions stables durant le relevage sans être impacté par une instabilité de la position de la noix 7.  The ring can thus adopt stable positions during lifting without being affected by instability of the position of the nut 7.
De manière encore préférée, l'ancre comprend une deuxième paire d'embases 11 s'étendant horizontalement de part et d'autre du bord inférieur 12 de l'ancre tel que représentées sur la figure 4 et qui définissent avec la première paire d'embases 8 un logement d'accueil et de maintien fixe de la noix 7 en formant des butées à la fois pour sa face supérieure et pour sa face inférieure.  More preferably, the anchor comprises a second pair of bases 11 extending horizontally on either side of the lower edge 12 of the anchor as shown in Figure 4 and which define with the first pair of bases 8 a receiving housing and fixed maintenance of the nut 7 by forming stops for both its upper face and its lower face.
Cette deuxième paire d'embases 11 assure de multiples fonctions parmi le fait de supprimer/amoindrir l'effet de cisaillement du béton dans la partie supérieure de l'ancre lors du relevage, et également la possibilité de venir éventuellement accrocher un fer ou une armature et ainsi supprimer/amoindrir l'effet de cisaillement de ce fer ou de cette armature en répartissant sur plusieurs zones les endroits susceptibles d'être cisaillés. This second pair of bases 11 provides multiple functions among eliminating / reducing the shearing effect of the concrete in the upper part of the anchor during lifting, and also the possibility of possibly coming to hang an iron or a frame and thus remove / lessen the shearing effect of this iron or of this frame by spreading on several zones the places likely to be sheared.
L'autre avantage de la présence de deux paires d'embases 8, 11 est le fait de pouvoir utiliser l'ancre en retournement.  The other advantage of the presence of two pairs of bases 8, 11 is the fact of being able to use the anchor in inversion.
Que l'ancre soit pourvue d'une ou de deux paires d'embases 8, 11, celles-ci peuvent être obtenues par repliement d'une partie du méplat constitutif de l'ancre.  That the anchor is provided with one or two pairs of bases 8, 11, they can be obtained by folding a portion of the constituent flat of the anchor.
Par exemple, lorsque l'ancre est formée par l'assemblage dos à dos de deux méplats 12a, 12b, tels qu'illustrés sur les figures 1 et 2, pourvus chacun d'une partie plane de corps et de tête 1, 2, et d'une partie formant le pied de l'ancre 3 incluant une facette divergente 13a, 13b et une facette convergente 14a, 14b, formant un caisson de rigidité, une première paire d'embase peut être formée par repliement le long de chaque bord latéral arrière 9a, 9b des deux méplats, d'une partie de méplat prolongeant latéralement la tête de l'ancre et qui est repliée perpendiculairement à la tête de l'ancre.  For example, when the anchor is formed by the back-to-back assembly of two flats 12a, 12b, as illustrated in FIGS. 1 and 2, each provided with a flat body and head portion 1, 2, and a part forming the foot of the anchor 3 including a diverging facet 13a, 13b and a converging facet 14a, 14b, forming a rigidity box, a first pair of base can be formed by folding along each edge rear side 9a, 9b of the two flats, a flat portion laterally extending the head of the anchor and which is folded perpendicular to the head of the anchor.
Cette partie de méplat prolonge un ergot 16a de la tête de l'ancre qui dépasse du bord frontal supérieur central 17a de la tête de l'ancre d'une distance sensiblement égale à l'épaisseur du méplat en étant séparé de ce bord frontal 17a par un bord en biseau 21a. Cette distance pouvant varier entre une et dix épaisseurs de méplat et sera adaptée entre fonction de l'articulation de l'anneau vis à vis de la noix et des dimensions de ceux ci afin d'obtenir une venue en butée de la manille de l'anneau en position verticale au commencement du relevage (figure 4).  This flat portion extends a lug 16a of the head of the anchor protruding from the upper central front edge 17a of the head of the anchor by a distance substantially equal to the thickness of the flat part being separated from this front edge 17a by a beveled edge 21a. This distance may vary between one and ten thicknesses of flat and will be adapted between the function of the articulation of the ring vis-a-vis the nut and the dimensions of these in order to obtain an abutment of the shackle of the ring in vertical position at the beginning of lifting (figure 4).
Elle s'étend sur environ un quart de la longueur de l'ancre en étant sensiblement triangulaire la dotant d'une largeur diminuant en direction du pied de l'ancre avec cependant un coin supérieur en angle droit 18a.  It extends about a quarter of the length of the anchor being substantially triangular endowing it with a decreasing width in the direction of the foot of the anchor with however an upper corner in right angle 18a.
Bien entendu, les embases peuvent présenter d'autres formes que la forme sensiblement triangulaire des figures 1 et 2, telle qu'une forme rectangulaire (figure 7) ou celle d'un parallélogramme (figure 8).  Of course, the bases may have other shapes than the substantially triangular shape of Figures 1 and 2, such as a rectangular shape (Figure 7) or that of a parallelogram (Figure 8).
Conformément à la figure 2(e), la face arrière 19a, 19b des embases est située dans le même plan que le bord arrière 21a, 21b du caisson de rigidité. Plutôt que de prolonger l'ergot 16 de l'ancre, une embase peut, conformément à la figure 5 pour les embases lia, 11B, prolonger la partie de tête du méplat en retrait vis à vis du bord frontal supérieur 17a et séparée de celle ci par le bord en biseau 21a. L'embase 11 est alors située en retrait du bord frontal supérieur selon l'axe de l'ancre, d'une distance d'environ une épaisseur de méplat, cette distance pouvant varier entre une et dix épaisseurs de méplat et sera adaptée entre fonction de l'articulation de l'anneau vis à vis de la noix et des dimensions de ceux ci. According to Figure 2 (e), the rear face 19a, 19b of the bases is located in the same plane as the rear edge 21a, 21b of the rigidity box. Rather than extending the lug 16 of the anchor, a base may, in accordance with Figure 5 for the bases 11a, 11B, extend the head portion of the recessed flat opposite the upper front edge 17a and separated from that ci by the beveled edge 21a. The base 11 is then set back from the upper front edge along the axis of the anchor, a distance of about a flattened thickness, this distance may vary between one and ten thicknesses of flat and will be adapted between function of the articulation of the ring with respect to the nut and the dimensions of these.
La tête de l'ancre qui est dotée des embases de maintien de la noix peut présenter différentes formes et être pourvue de différents éléments tels que des ergots latéraux, un téton de blocage de l'ancre à la verticale qui s'introduit dans un trou complémentaire formé au sein de la réservation. The head of the anchor which is provided with the bases for holding the nut may have different shapes and be provided with different elements such as lateral lugs, an anchor locking pin vertically which is introduced into a hole complementary formed within the reservation.
Les méplats constitutifs des méplats jumelés et celui constitutif du renfort lorsque l'ancre en est pourvu, peuvent être solidarisés les uns aux autres, par exemple par des rivets. The constituent flats of the twin flats and that constituting the reinforcement when the anchor is provided, can be secured to each other, for example by rivets.
Lorsque l'ancre est pourvue d'un renfort central, celui-ci comprend un orifice de passage 26 de la noix de l'anneau de plus faible hauteur h2 que celles (hl) des deux orifices identiques des méplats latéraux, par exemple de 5 à 20% plus faible. Les dimensions relatives des hauteurs respectives de l'orifice formé dans le renfort et de l'orifice formé dans chacun des deux méplats à jumeler, sont en fait idéalement choisies pour faire en sorte que la noix de l'anneau vienne en contact avec le bord de l'orifice du renfort préférentiellement et/ou en plus du bord de l'orifice de chaque méplat à jumeler. Le contact entre la noix et le méplat du renfort s'effectue alors le long des deux lignes 20 délimitant latéralement la tranche définissant l'orifice du renfort. Le contact entre la noix et chaque méplat à jumeler s'effectue le long de la ligne extérieure 25 de la tranche définissant l'orifice. On pourrait également prévoir pour les tranches définissant les orifices du renfort et des méplats à jumeler, des profils particuliers, par exemple incurvés selon un profil complémentaire de celui de la partie de noix en regard qui traverse ces orifices, pour autoriser un contact en surface entre la noix et les différents méplats constitutifs de l'ancre. On décrit dans ce qui suit différentes réalisations d'ancres de levage/relevage/retournement formées par l'assemblage de deux méplats, dotées d'embases de maintien de la noix de l'anneau, selon l'invention : When the anchor is provided with a central reinforcement, it comprises a passage opening 26 of the ring nut of lower height h2 than those (h1) of the two identical orifices of the lateral flats, for example 5 at 20% lower. The relative dimensions of the respective heights of the orifice formed in the reinforcement and of the orifice formed in each of the two flats to be twinned, are in fact ideally chosen to ensure that the ring nut comes into contact with the edge. the orifice of the reinforcement preferably and / or in addition to the edge of the orifice of each flat to be twinned. The contact between the nut and the flat part of the reinforcement then takes place along the two lines 20 delimiting laterally the portion defining the orifice of the reinforcement. The contact between the nut and each flat to be twinned is effected along the outer line 25 of the slice defining the orifice. It would also be possible for the slices defining the reinforcing orifices and the flats to be twinned, to have particular profiles, for example curved according to a profile complementary to that of the opposite portion of walnut which passes through these orifices, to allow surface contact between the nut and the various constituent flats of the anchor. Various embodiments of lifting / lifting / reversing anchors formed by the assembly of two flats, provided with bases for holding the ring nut, according to the invention, are described below:
Ancre asymétrique simple des figures 1 et 2 Simple asymmetrical anchor of Figures 1 and 2
Cette ancre est de construction simple et peu onéreuse tout en permettant une utilisation en levage, relevage avec maintien fixe de la position de la noix.  This anchor is simple and inexpensive construction while allowing use in lifting, lifting with fixed maintenance of the position of the nut.
Cette ancre comprend deux méplats 12a, 12b assemblés de part et d'autre d'un troisième méplat 22 formant un renfort central 22 qui peut s'étendre le long de l'ancre à partir de la tête, et par exemple sur la moitié de la longueur de l'ancre à partir de la tête.  This anchor comprises two flats 12a, 12b assembled on either side of a third flat 22 forming a central reinforcement 22 which can extend along the anchor from the head, and for example on half of the length of the anchor from the head.
Les deux méplats jumelés sont chacun pourvus d'une embase 8a de forme générale sensiblement triangulaire, les deux embases formant conformément à la figure 2(e) une paire d'embases s'étendant perpendiculairement au plan principal du méplat, au niveau du bord 9a de l'embase se retrouvant à définir un bord supérieur pour l'ancre lorsque elle est disposée au sein d'un élément de construction à relever. Ces embases sont obtenues par repliement d'une partie de méplat prolongeant l'ergot 16a, l'autre ergot 15a de la tête de l'ancre étant dépourvu d'un tel prolongement.  The two paired flats are each provided with a base 8a of generally triangular general shape, the two bases forming according to Figure 2 (e) a pair of bases extending perpendicularly to the main plane of the flat, at the edge 9a the base being found to define an upper edge for the anchor when it is disposed within a building element to be raised. These bases are obtained by folding a flat portion extending the lug 16a, the other lug 15a of the head of the anchor being devoid of such an extension.
Le renfort central est bien entendu optionnel.  The central reinforcement is of course optional.
Les deux méplats et le renfort central 22 comprennent chacun une extension latérale 23 située sous l'orifice 4 de passage de la noix de l'anneau, et s'étendant d'un côté du bord latéral 24 de la tête, opposé aux embases 8a, 8b.  The two flats and the central reinforcement 22 each comprise a lateral extension 23 located under the orifice 4 for passage of the ring nut, and extending on one side of the lateral edge 24 of the head, opposite the bases 8a. , 8b.
Ces extensions de méplats servent de support de passage pour un fer à béton ou une armature et est pourvue d'un trou 26 de passage de ce fer ou de cette armature 27. Les deux méplats jumelés sont ainsi pourvus d'un tel trou 26 et le renfort 22 en est également pourvu. Il est à noter que les orifices prévus sur les méplats jumelés sont légèrement plus larges que celui prévu sur le renfort. These extensions of flats serve as a support for a concrete or reinforcement and is provided with a hole 26 for the passage of this iron or this frame 27. The two twin flats are thus provided with such a hole 26 and the reinforcement 22 is also provided. It should be noted that the holes provided on the twin flats are slightly wider than that provided on the reinforcement.
Comme visible sur la figure 2(e), l'extension 23 permet de positionner le fer plus profondément au sein de l'élément de construction en position horizontale et permet ainsi d'augmenter la compression générée par le fer ou l'armature lors du levage/relevage.  As can be seen in FIG. 2 (e), the extension 23 makes it possible to position the iron more deeply within the construction element in a horizontal position and thus makes it possible to increase the compression generated by the iron or reinforcement during the lift / tilt.
Le fer ou l'armature est représenté en pointillé pour signifier le fait qu'il/elle est optionnel. Cependant, ce fer ou cette armature peuvent par exemple nécessaires lorsque l'ancre est utilisée en relevage, elle est alors disposée au sein de l'élément de construction horizontal, avec le fer ou l'armature en partie basse, et les embases de maintien fixe de la noix d'anneau, en position haute.  The iron or armature is shown in dotted lines to indicate the fact that he / she is optional. However, this iron or this frame may for example be necessary when the anchor is used in lifting, it is then disposed within the horizontal construction element, with the iron or the armature at the bottom, and the support bases fixed ring nut, in high position.
L'ancre des figures 1 et 2 est asymétrique en ce sens qu'elle doit être disposée dans un sens particulier au sein de l'élément de construction à relever pour disposer les embases de maintien de la noix, en partie supérieure, et le fer ou l'armature de relevage, en partie inférieure de l'élément de construction.  The anchor of Figures 1 and 2 is asymmetrical in that it must be arranged in a particular direction within the building element to be raised to arrange the support bases of the nut, in the upper part, and the iron or the lifting frame, in the lower part of the construction element.
Ancre symétrique de la figure 5, de relevage et de retournement Symmetrical anchor of Figure 5, lifting and reversing
Au contraire, l'ancre de la figure 5 est symétrique en ce sens d'une part qu'elle comprend deux paires d'embases 8 et 11 disposées respectivement le long des deux bords latéraux de l'ancre et d'autre part que le fer ou l'armature optionnel/le peut être disposé/e sur une ligne médiane de l'ancre. On the contrary, the anchor of FIG. 5 is symmetrical in the sense that it comprises two pairs of bases 8 and 11 arranged respectively along the two lateral edges of the anchor and on the other hand. iron or optional armor / can be arranged on a median line of the anchor.
Une première paire d'embases 8 prolonge les ergots 16 des deux méplats et se retrouve en partie supérieure de l'élément de construction à relever depuis une position horizontale. Ces deux embases 8 dépassent ainsi du bord frontal 17a, 17b de chaque tête de méplat d'une distance d'environ une épaisseur de méplat. La deuxième paire d'embases 11 prolonge les bords latéraux courts 28 situés en retrait du bord frontal 17a, 17b et se retrouve en partie inférieure de l'élément de construction à relever depuis une position horizontale. Ces deux embases 11 sont ainsi disposées en retrait du bord frontal 17a, 17b de chaque tête de méplat d'une distance d'environ une épaisseur de méplat. A first pair of bases 8 extends the lugs 16 of the two flats and is found in the upper part of the building element to be raised from a horizontal position. These two bases 8 and exceed the front edge 17a, 17b of each flat head a distance of about a flat thickness. The second pair of bases 11 extends the short side edges 28 set back from the front edge 17a, 17b and is found in the lower part of the building element to be raised from a horizontal position. These two bases 11 are thus set back from the front edge 17a, 17b of each flat head by a distance of about a flat thickness.
Pour disposer le fer ou l'armature optionnel/le le long d'une ligne médiane de l'ancre, celle ci peut être pourvue :  To arrange the iron or the optional reinforcement / along a median line of the anchor, it can be provided:
de trous médians 31 de passage de ce fer ou de cette armature 27 sur chacun de méplats constitutifs des deux méplats jumelés et du renfort 22, ou  of median holes 31 of passage of this iron or this frame 27 on each of the constituent flats of the two twin flats and the reinforcement 22, or
d'une fente 32 centrale prenant naissance sous l'orifice de passage de la noix 7 et débouchant sur le bord inférieur 33 du pied de l'ancre, par exemple d'une largeur d'environ 1/3 de celle de l'ancre. Pour former cette fente, la partie de méplat du renfort située sur le lieu de réalisation de la fente est découpée et ôtée, et les deux méplats jumelés sont également découpés et les parties de méplat situées sur le lieu de réalisation de la fente, sont soit totalement ôtées, soit utilisées pour former de part et d'autre de l'ancre, deux volets opposés optionnels 34, 35 augmentant la résistance de l'ancre au relevage et au retournement.  a central slot 32 originating beneath the orifice for passage of the nut 7 and opening on the lower edge 33 of the foot of the anchor, for example a width of about 1/3 of that of the anchor . To form this slot, the flat portion of the reinforcement located on the site of the slot is cut and removed, and the two twin flats are also cut and the flat portions located on the site of the slot, are either completely removed, or used to form on either side of the anchor, two optional opposite flaps 34, 35 increasing the resistance of the anchor to lifting and turning.
Cette ancre est de structure plus complexe de celle des figures 1 et 2 mais présente l'avantage de sa symétrie lui permettant d'être utilisée également en retournement, les deux paires d'embases 8 et 11 servant de butée pour la noix d'anneau dans le sens de levée puis de dépose de l'élément de construction une fois retourné, et le fer ou l'armature qui est disposé sur la médiane de l'ancre peut se retrouver à la même profondeur dans l'élément de construction dans le sens de levée puis de dépose de l'élément de construction une fois retourné sans ainsi risquer un éclatement du béton durant l'un ou l'autre de ces mouvements du fait de la présence du fer ou de l'armature. Les ancres des figures 6, 7 et 8 avec moyens de relevage différents This anchor is of more complex structure than that of Figures 1 and 2 but has the advantage of its symmetry allowing it to be used also in inversion, the two pairs of bases 8 and 11 serving as a stop for the ring nut in the direction of lifting and removal of the building element once returned, and the iron or armature which is arranged on the median of the anchor can be found at the same depth in the building element in the direction of lifting and removal of the building element once returned without risking a bursting of the concrete during one or other of these movements due to the presence of the iron or the frame. The anchors of Figures 6, 7 and 8 with different lifting means
Ancre asymétrique à ailettes tridimensionnelles - figure 6 3-dimensional asymmetric wing anchor - figure 6
L'ancre de la figure 6 est de type asymétrique décrit ci-dessus avec une unique paire d'embases supérieures 8. Pour le passage du fer 27 ou de l'armature, cette ancre ne comprend pas une extension 23 comme prévu pour la variante de réalisation des figures 1 et 2, mais une ailette 36 tridimensionnelle obtenue par estampage au sein de chaque méplat jumelé 12a, 12b. Cette ailette est délimitée dans l'exemple illustré, par deux lignes obliques 37, 38 débouchant respectivement sur le bord latéral court 28 de la tête de l'ancre et à la jonction 30 du bord latéral du corps de l'ancre et la première ligne de pliage 42 du pied de l'ancre, et par un contour s'étendant au-delà du bord latéral court 28.  The anchor of FIG. 6 is asymmetric type described above with a single pair of upper bases 8. For the passage of the iron 27 or the armature, this anchor does not include an extension 23 as provided for the variant embodiment of Figures 1 and 2, but a three-dimensional fin 36 obtained by stamping within each paired flat 12a, 12b. This fin is delimited in the illustrated example, by two oblique lines 37, 38 opening respectively on the short side edge 28 of the head of the anchor and at the junction 30 of the lateral edge of the body of the anchor and the first line fold 42 of the foot of the anchor, and a contour extending beyond the short side edge 28.
Les deux ailettes 36 ainsi définies peuvent suffire à la définition d'un cône de compression suffisant pour le relevage, notamment pour des éléments de construction réalisés en un béton dur.  The two fins 36 thus defined may be sufficient for the definition of a compression cone sufficient for lifting, especially for structural elements made of hard concrete.
Mais pour le relevage d'éléments de construction particulièrement lourds, ou celui d'éléments de construction en un béton moins dur, il sera possible d'ajouter un fer ou une armature qui viendra s'insérer dans un trou 43 réalisé dans chaque ailette 36. Ce fer ou cette armature sont donc optionnel pour le relevage du fait de la présence des ailettes tridimensionnelles.  But for the lifting of particularly heavy construction elements, or that of building elements in a less hard concrete, it will be possible to add an iron or frame that will fit into a hole 43 made in each fin 36 This iron or this frame is therefore optional for the lift due to the presence of three-dimensional fins.
Ancre symétrique à ailettes planes - figures 7 et 8 Symmetrical anchor with flat fins - Figures 7 and 8
Les ancres des figures 7 et 8 sont de type symétriques puisqu'elles comprennent chacune deux paires d'embases 8 et 11, avec comme particularité pour l'ancre de la figure 8, le fait que chaque des deux paires d'embase 8, 11 s'étend à partir d'un ergot latéral 16 de la tête.  The anchors of FIGS. 7 and 8 are of the symmetrical type since they each comprise two pairs of bases 8 and 11, with the particularity for the anchor of FIG. 8 that each of the two base pairs 8, 11 extends from a lateral lug 16 of the head.
Les moyens assurant le relevage sont dans ces exemples de réalisation un volet plan 41 s'étendant sur une portion du corps de l'ancre et obtenu par repliement d'une partie de méplat en dehors du plan principal du méplat le long d'une ligne de pliage. Dans l'exemple de la figure 7, ce volet 41 est court et s'étend sur sensiblement la moitié du corps de l'ancre à proximité de son pied 3. L'espace existant entre la tête et le volet 41 est utilisé pour le passage d'un fer ou d'une armature à travers un trou 42 réalisé dans les deux méplats jumelés et dans le renfort 22 et débouchant sur le bord latéral de chacun de ces méplats. Les embases 11 de la paire inférieure sont en outre utilisées pour compléter le passage formé pour le trou débouchant 42 en étant prolongées en direction du volet au niveau de ce trou 42. The means ensuring the lifting are in these embodiments a flat shutter 41 extending over a portion of the body of the anchor and obtained by folding a flat portion out of the main plane of the flat along a line folding. In the example of Figure 7, this flap 41 is short and extends over substantially half of the body of the anchor near his foot 3. The space between the head and the flap 41 is used for the passing an iron or a frame through a hole 42 made in the two twin flats and in the reinforcement 22 and opening on the side edge of each of these flats. The bases 11 of the lower pair are furthermore used to complete the passage formed for the through hole 42 by being extended towards the flap at this hole 42.
Dans l'exemple de la figure 8, ce volet est long et de forme générale sensiblement triangulaire 44 et s'étend sur l'ensemble du corps de l'ancre. Il est obtenu par pliage d'une partie de méplat le long d'une ligne 46 inclinée vis à vis de la ligne médiane du corps de l'ancre en direction du pied de l'ancre pour déboucher sur le bord latéral du corps de l'ancre. Il est pourvu au niveau de son sommet libre 47 d'un orifice de passage d'un fer ou d'une armature, qui passera sous le corps de l'ancre positionnée dans l'élément de construction à relever occupant sa position horizontale.  In the example of Figure 8, this flap is long and of generally triangular general shape 44 and extends over the entire body of the anchor. It is obtained by folding a flat portion along a line 46 inclined with respect to the median line of the body of the anchor towards the foot of the anchor to open on the lateral edge of the body of the anchor. 'anchor. It is provided at its free apex 47 with a hole for the passage of an iron or armature, which will pass under the body of the anchor positioned in the building element to be raised occupying its horizontal position.
Du fait de la présence des volets courts 41, ou des volets longs 44, le fer ou l'armature est facultatif/ve.  Due to the presence of short flaps 41, or long flaps 44, the iron or the frame is optional.
Les ancres décrites ci-dessus peuvent comprendre de façon optionnelle : The anchors described above may optionally include:
- un ou plusieurs renfort/s central/aux,  - one or more reinforcement / s central / aux,
- un caisson de rigidité au niveau de son pied, formé par des facettes divergentes prolongées chacune par une facette convergente  - a box of rigidity at its foot, formed by divergent facets each extended by a convergent facet
des crans inférieurs s'engageant mutuellement prévus sur le bord inférieur libre des facettes convergentes constitutives du caisson de rigidité  mutually engaging lower notches provided on the free bottom edge of the converging facets constituting the stiffness box
- un ou plusieurs orifices fermés ou une ou plusieurs gorges ouvertes de passage d'un fer ou d'une armature  one or more closed openings or one or more open grooves for the passage of an iron or an armature
- un ergot ou deux ergots latéraux par méplat  - one lug or two lateral lugs by flat
- une platine rapportée et introduite au sein d'une fente centrale  - a platinum reported and introduced within a central slot
la platine pouvant être repliée et/ou conformée pour recevoir un fer ou une armature la platine étant alors pourvue des orifices fermés ou des gorges ouvertes de passage d'un fer ou d'une armature the plate can be folded and / or shaped to receive an iron or frame the plate then being provided with closed or open grooves for the passage of an iron or an armature
des ailettes ou des volets de relevage, formant une inclinaison à 10, 20, ... 45[deg.] en dessous d'un plan horizontale lorsque l'ancre est disposée au sein de l'élément de construction couché avant son relevage.  fins or louvers, forming an inclination at 10, 20, ... 45 [deg.] below a horizontal plane when the anchor is disposed within the coated structural element before its lifting.
Afin d'autoriser leur pliage suivant les lignes de pliage A-D, ces méplats présentent une épaisseur généralement inférieure à 15 mm. In order to allow their folding along the fold lines A-D, these flats have a thickness generally less than 15 mm.
Dans les modes de réalisation présentés, le renfort peut être fixé aux deux méplats, par des rivets au niveau de la tête de l'ancre et/ou du corps de l'ancre ou par pliage des extrémités haut et bas de l'ancre.  In the embodiments shown, the reinforcement may be attached to the two flats by rivets at the head of the anchor and / or the body of the anchor or by folding the top and bottom ends of the anchor.
Comme il ressort de la description qui vient d'être faite et des figures, l'ancre selon l'invention présente des avantages majeurs par rapport aux ancres de l'état de la technique avec possibilité de supprimer le fer d'adhérence complémentaire. As is apparent from the description that has just been given and the figures, the anchor according to the invention has major advantages over the anchors of the state of the art with the possibility of eliminating the complementary bonding iron.
Une ancre de ce type est réalisée par un procédé de fabrication simple et peu onéreux, basé sur le pliage d'un unique ou de deux méplat éventuellement renforcés (associés à un renfort) permet de réaliser le levage, le relevage, le retournement d'éléments de construction relativement lourds.  An anchor of this type is made by a simple and inexpensive manufacturing process, based on the folding of a single or two flattened optionally reinforced (associated with a reinforcement) allows to perform the lifting, lifting, reversal of relatively heavy construction elements.
Bien entendu, les particularités des modes de réalisation, telles que la forme à section carrée, triangulaire ou en losange du caisson, l'inclinaison à 10, 20, ... 45[deg.] des ailettes et volets de levage, des facettes inférieures divergentes, la présence ou l'absence de facette supérieures divergentes au sein du corps de l'ancre, leur nombre, peuvent être combinées les uns aux autres pour définir un ancrage optimal en fonction de l'élément de construction à lever. Of course, the particularities of the embodiments, such as the square, triangular or diamond shape of the box, the inclination at 10, 20, ... 45 [deg.] Of the fins and lifting flaps, facets In the case of divergent lower extremities, the presence or absence of diverging upper facets within the body of the anchor, their number, may be combined with each other to define an optimum anchorage as a function of the building element to be lifted.

Claims

REVENDICATIONS
1. Ancre de levage, relevage ou retournement d'un élément de construction, comprenant une partie de tête susceptible d'être accrochée à un engin de préhension par l'intermédiaire d'une pièce de raccordement telle qu'une noix d'anneau, l'ancre s'étendant suivant un plan principal le long d'un axe principal et étant obtenue par repliement d'au moins un méplat, l'ancre définissant différentes portions successives formant respectivement la tête, un corps et un pied pour l'ancre, caractérisée en ce que la tête de l'ancre comprend au moins une embase d'extrémité (8, 11) servant de butée de maintien à une position fixe de la pièce de raccordement lors du relevage, cette embase d'extrémité s'étendant suivant un plan en dehors du plan principal du méplat. Anchor for lifting, lifting or reversing a construction element, comprising a head part that can be hooked to a gripping machine via a connecting piece such as a ring nut, the anchor extending in a main plane along a main axis and being obtained by folding at least one flat, the anchor defining different successive portions respectively forming the head, a body and a foot for the anchor , characterized in that the head of the anchor comprises at least one end base (8, 11) serving as a holding stop at a fixed position of the connection piece during the lifting, this end base extending following a plane outside the main plane of the flat.
2. Ancre selon la revendication 1, caractérisée en ce que l'embase d'extrémité (8, 11) s'étend perpendiculairement au plan du méplat. 2. Anchor according to claim 1, characterized in that the end base (8, 11) extends perpendicular to the plane of the flat.
3. Ancre selon la revendication 1 ou 2, caractérisée en ce que l'ancre comprend deux embases d'extrémité (8, 11) positionnées respectivement le long des deux bords latéraux du méplat. 3. Anchor according to claim 1 or 2, characterized in that the anchor comprises two end plates (8, 11) positioned respectively along the two side edges of the flat.
4. Ancre selon l'une des revendications 1 à 3, caractérisée en ce que l'embase d'extrémité (8, 11) est obtenue par repliement d'une partie de méplat en dehors du plan principal en étant repliée à partir d'un bord latéral de la tête de l'ancre. 4. Anchor according to one of claims 1 to 3, characterized in that the end base (8, 11) is obtained by folding a flat portion out of the main plane by being folded from a side edge of the anchor head.
5. Ancre selon l'une des revendications précédentes, caractérisée en ce que l'embase (8, 11) s'étend en dehors du plan du méplat sur une longueur d'au moins deux fois l'épaisseur du méplat 5. Anchor according to one of the preceding claims, characterized in that the base (8, 11) extends outside the flat plane over a length of at least twice the thickness of the flat.
6. Ancre selon l'une des revendications précédentes, caractérisée en ce que la tête de l'ancre comprend au moins un ergot latéral (16) s'étendant suivant le plan principal du méplat et au-delà d'un bord frontal de la tête d'ancre, et en ce que l'embase d'extrémité forme un prolongement de l'ergot latéral en dehors du plan principal du méplat 6. Anchor according to one of the preceding claims, characterized in that the head of the anchor comprises at least one lateral lug (16) extending along the main plane of the flat and beyond a front edge of the anchor head, and in that the end base forms an extension of the lateral lug outside the main plane of the flat part.
7. Ancre selon la revendication précédente, caractérisée en ce que l'embase d'extrémité (8, 11) dépasse du bord frontal de la tête de l'ancre d'une distance au moins égale à l'épaisseur du méplat. 7. Anchor according to the preceding claim, characterized in that the end base (8, 11) protrudes from the front edge of the head of the anchor by a distance at least equal to the thickness of the flat.
8. Ancre selon l'une des revendications précédentes, caractérisée en ce que la tête de l'ancre comprend un bord latéral court (28) en retrait vis à vis du bord frontal de la tête d'ancre, et en ce que l'embase d'extrémité (11) forme un prolongement du bord latéral court en dehors du plan principal du méplat. 8. Anchor according to one of the preceding claims, characterized in that the head of the anchor comprises a short side edge (28) set back with respect to the front edge of the anchor head, and in that the end base (11) forms an extension of the short lateral edge outside the main plane of the flat.
9. Ancre selon l'une des revendications précédentes, caractérisée en ce que l'ancre comprend une découpe (26, 31, 32, 42, 43) formant une ouverture de passage d'un élément de renfort longiligne, tel qu'un fer à béton ou une armature (27) formée à l'opposé d'une embase vis à vis de l'axe de l'ancre. 9. Anchor according to one of the preceding claims, characterized in that the anchor comprises a cutout (26, 31, 32, 42, 43) forming a passage opening of an elongate reinforcing element, such as an iron concrete or armature (27) formed opposite a base with respect to the axis of the anchor.
10. Ancre selon la revendication précédente, caractérisée en ce que la découpe est formée sur une extension (23) du corps de l'ancre située d'un côté du bord latéral du méplat considéré10. Anchor according to the preceding claim, characterized in that the cutout is formed on an extension (23) of the body of the anchor located on one side of the lateral edge of the flat considered
11. Ancre selon l'une des revendications précédentes, caractérisée en ce qu'elle comprend deux ailettes ou volets (36, 41, 44) opposées de renforcement obtenues par découpe et pliage du méplat ou par estampage. 11. Anchor according to one of the preceding claims, characterized in that it comprises two fins or flaps (36, 41, 44) opposite reinforcement obtained by cutting and folding the flat or by stamping.
12. Ancre selon la revendication précédente, caractérisée en ce que les ailettes (36, 41, 44) comprennent des ouvertures de passage d'un élément de renfort tel qu'un fer à béton ou une armature 12. Anchor according to the preceding claim, characterized in that the fins (36, 41, 44) comprise openings for the passage of a reinforcing element such as a concrete or reinforcement
13. Ancre selon l'une des revendications précédentes, caractérisée en ce qu'elle est formée de deux méplats identiques (12a, 12b) assemblés l'un à l'autre dos à dos ou de part et d'autre d'un renfort (22). 13. Anchor according to one of the preceding claims, characterized in that it is formed of two identical flats (12a, 12b) assembled to each other back to back or on either side of a reinforcement (22).
14. Ensemble de levage, relevage ou retournement d'un élément de construction, comprenant une ancre selon l'une quelconque des revendications précédentes et une pièce de raccordement de l'ancre à un anneau de préhension, la pièce présentant une largeur 1, l'ancre étant pourvue de deux embases latérales sur lesquelles vient en appui une face supérieure de la pièce de raccordement lors du relevage. 14. A lifting assembly, lifting or reversal of a construction element, comprising an anchor according to any one of the preceding claims and a connection piece of the anchor to a gripping ring, the piece having a width 1, l anchor being provided with two lateral bases on which bears an upper face of the connecting piece during lifting.
15. Ensemble de levage selon la revendication précédente, dans lequel l'ancre comprend deux paires d'embases latérales disposées respectivement le long des deux bords latéraux de l'ancre, les deux paires d'embases étant séparées l'une de l'autre d'une distance de blocage de la pièce de raccordement à une position fixe lors de la manutention de l'élément de construction. 15. Lifting assembly according to the preceding claim, wherein the anchor comprises two pairs of lateral bases disposed respectively along the two lateral edges of the anchor, the two pairs of bases being separated from one another a locking distance of the connecting piece at a fixed position during the handling of the construction element.
PCT/FR2015/053778 2015-10-14 2015-12-30 Dynamic anchor for lifting a building element, with means for fixedly holding a handling ring yoke WO2017064374A1 (en)

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FR1559778A FR3042522B1 (en) 2015-10-14 2015-10-14 DYNAMIC ANCHOR FOR LIFTING A BUILDING ELEMENT, WITH MEANS FOR FIXED RETENTION OF A HAND RING NUT HANDLING
FR1559778 2015-10-14

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568934A2 (en) * 1992-05-06 1993-11-10 Benito Zambelli Device for lifting prefabricated components, particularly made of concrete or the like
US5596846A (en) * 1995-10-13 1997-01-28 The Burke Group Lifting anchor for embedment in concrete members
US20040159070A1 (en) * 2003-02-19 2004-08-19 Universal Form Clamp Co., Inc. Passthrough concrete anchor
WO2008078008A1 (en) * 2006-12-22 2008-07-03 Marcel Arteon Anchor for handling building elements, in particular a concrete panel
US20120227335A1 (en) * 2011-03-08 2012-09-13 Sidney E. Francies, III Lifting Anchor for a Concrete Slab

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0568934A2 (en) * 1992-05-06 1993-11-10 Benito Zambelli Device for lifting prefabricated components, particularly made of concrete or the like
US5596846A (en) * 1995-10-13 1997-01-28 The Burke Group Lifting anchor for embedment in concrete members
US20040159070A1 (en) * 2003-02-19 2004-08-19 Universal Form Clamp Co., Inc. Passthrough concrete anchor
WO2008078008A1 (en) * 2006-12-22 2008-07-03 Marcel Arteon Anchor for handling building elements, in particular a concrete panel
US20120227335A1 (en) * 2011-03-08 2012-09-13 Sidney E. Francies, III Lifting Anchor for a Concrete Slab

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FR3042522A1 (en) 2017-04-21

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