EP1914363B1 - Reinforcement connection box - Google Patents

Reinforcement connection box Download PDF

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Publication number
EP1914363B1
EP1914363B1 EP07370021A EP07370021A EP1914363B1 EP 1914363 B1 EP1914363 B1 EP 1914363B1 EP 07370021 A EP07370021 A EP 07370021A EP 07370021 A EP07370021 A EP 07370021A EP 1914363 B1 EP1914363 B1 EP 1914363B1
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EP
European Patent Office
Prior art keywords
connection system
linking piece
rebar connection
window
windows
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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.)
Not-in-force
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EP07370021A
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German (de)
French (fr)
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EP1914363A1 (en
Inventor
Alexandre Dubus
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Dubus Eric
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Dubus Eric
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Publication of EP1914363A1 publication Critical patent/EP1914363A1/en
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    • 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
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/125—Reinforcement continuity box
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups

Definitions

  • the present invention relates to a waiting box for concrete reinforcement.
  • the waiting boxes are intended for joining the cast concrete elements in successive phases. They make it possible to position pin-shaped irons, generally having at one end a loop shape projecting from said housing so as to be embedded in the concrete in a first phase of concreting and at the other end, two strands bent inside said hollow casing waiting to be embedded in the concrete in a second phase of concreting.
  • said pin may be simple, instead of being double, and have a stick-shaped end, instead of a loop. So, only one strand is bent inside the case.
  • These boxes are generally formed of a hollow body whose base is pierced with circular holes through which are threaded the ends of said pins.
  • the document FR-2712619 discloses a modular box for placing on hold the reinforcing bars of concrete comprising, on the one hand, a hollow body, and on the other hand, a plurality of covers adapted to be fixed to the longitudinal edges of the opening of the body hollow in order to close its opening.
  • this type of structure requires to make openings by drilling on the hollow body of the waiting box by diameter of steel used.
  • Document is known DE 87 05 506 U1 a waiting box whose hollow housing is provided, for each reinforcing iron, with two circular bores, for the passage of the two curved ends of the reinforcing iron.
  • the iron is connected to the housing by means of two conical connecting pieces, respectively snap-fit in both said circular bores.
  • Document is known CH 666 931 a waiting box whose hollow housing is provided, for each reinforcing iron, an oblong bore for the passage of said iron.
  • a connecting piece provided with locking tabs can be snapped onto said oblong bore to hold the iron to the housing.
  • Document is known DE 195 46 820 a connecting part for the production of prefabricated concrete parts, provided with protruding reinforcing connections.
  • the object of the present invention is to provide a waiting box for concrete reinforcement that overcomes the disadvantages mentioned above, especially as regards the drilling of the openings on the hollow body and the introduction of the irons in these openings.
  • Another object of the present invention is to provide such a waiting box for concrete reinforcement that is easy to implement, this having repercussions on the cost of labor required, and which also allows to reduce inventory necessary spare parts for different situations.
  • Another object of the present invention is to create a bond using high adhesion steel (HA) between two concrete elements, cast one after the other.
  • HA high adhesion steel
  • Another object of the present invention is to allow a secure implementation of the connection to respect a unfolding of reinforcing bars coaxially, that is to say without forming a "bayonet”.
  • the invention relates to a waiting box for concrete reinforcement, comprising a hollow housing whose base has at least one window to allow the passage of pin-shaped reinforcing bars, said reinforcing bars presenting to the one of the ends of a stick-shaped or projecting loop relative to said housing to be embedded in the concrete in a first phase of concreting and, at the other end, at least one curved strand inside said hollow housing waiting to be embedded in the concrete in a second concrete phase, said holding box further comprising at least one connecting piece for cooperating with said at least one window and means for securing said connecting piece on the base at said windows, in the form of clipping means of the room at said windows.
  • the invention relates firstly to a waiting box 1 for a concrete reinforcement, comprising a hollow housing 2 whose base 3 has at least one window 4 to allow the passage of the pin-shaped reinforcing bars 5, double or single.
  • Said reinforcing irons 5 traditionally have at one end a loop shape 6 projecting from said housing, in particular at said base 3, so as to be embedded in the concrete in a first phase of concreting and, at the other end, two strands 7 1 , 7 2 curved inside said hollow casing 2 waiting to be embedded in the concrete in a second phase of concreting.
  • said waiting box 1 further comprises at least one connecting piece 8 to cooperate with said at least one window 4 and means for securing said connecting piece 8 on the base 3 at said windows 4.
  • said means for securing said connecting piece (8) on the base (3) are in the form of clipping means of said piece (8) at said windows (4).
  • said means for securing the connecting piece could be in the form of welds or rivets.
  • said connecting piece 8 has two openings 12 1 , 12 2 lateral openings, as shown more particularly to Figures 5 and 6 .
  • These two lateral openings 12 1 , 12 2 substantially correspond to the dimensions of the corresponding irons, and make it possible to hold said reinforcing bars 5 in place.
  • the waiting box 1, as shown in FIG. figure 1 further has a cover 9 for closing the open side of said hollow housing 2.
  • This cover 9 makes it possible to hide the part 7 1 , 7 2 of said reinforcing bars 5 which are curved inside said hollow case 2.
  • said windows 4 present on the base 3 of said housing 2 have a rectangular shape, after stamping, with two lateral flaps 10 1 , 10 2 and two transverse stiffening flaps 11 1 , 11 2 .
  • the figure 7 shows the cutout of the base 3 of the box body before stamping. During this operation, the lateral and transverse flaps will be closed.
  • the clipping means of said connecting piece 8 on the base 3 at said windows 4 may be constituted by said lateral flaps 10 1 , 10 2 and transverse 11 1 , 11 2 , as shown in FIG. figure 5 .
  • the side flaps 10 1 , 10 2 may be of different shapes, in particular they may have a shape of semicircle, ovoid, polygonal, triangular or other.
  • the side flaps 10 1 , 10 2 due to their structure, slightly inclined and convergent, and their elasticity, allow the connecting piece 8 to snap when it is fully depressed.
  • the lateral flaps 10 1 , 10 2 will deviate when the connecting piece 8 is pushed into said window 4, then resume their natural position then, said flap then snapping into said connecting piece 8 .
  • the connecting piece 8 is inserted from the inside of the hollow case 2.
  • the lateral flaps when they return to their natural position, allow said connecting piece 8 to be locked in a direction opposite to one another. in the sense of insertion.
  • the connecting piece In the latching position of the lateral flaps, the connecting piece is locked in the other direction, coming into abutment with the edges of the window 4, the connecting piece 8 being notably larger than the dimensions of the window 4.
  • the connecting piece 8 may have two terminal wings 14, in particular longitudinal and coplanar.
  • the terminal wings 14 block the connecting piece in one direction, namely the direction of insertion, by engaging with the inner wall of the hollow housing 2.
  • the connecting piece is in the form of a semi-tubular profile in half trapezium.
  • transverse flaps 11 1 , 11 2 also called stiffening flaps, allow, for their part, to stiffen the waiting box 1 in its perpendicular direction, and good stability during the vibration phase of the concrete, and preventing, furthermore , the connecting piece 8 to leave the waiting box 1.
  • the lateral flaps 11 1 , 11 2 are inclined and convergent relative to the base 3 of the box.
  • said side flaps serve to close off the clearances left by the connecting piece 8 on each side thereof.
  • said connecting piece 8 has the form of a half-cylinder, a half-parallelepiped or a half-cube, or even compromises between said forms.
  • the connecting piece 8 is in the form of a semi-tubular profile. It may have a half trapezoid profile, half circular, or even a compromise of these forms.
  • one of the advantages of the waiting box 1 object of the present invention is to allow a total clearance of the bend of the reinforcing iron 5, at the connecting piece 8, to allow unfolding irons without bayonet.
  • said connecting piece 8 presents a reservation for spacer 13 to block said waiting box 1 between two forms.
  • spacer 13 makes it possible to insert a conventional steel, normally with a diameter of 6 mm or 8 mm, in order to block the waiting box between the two forms, thus avoiding the sliding thereof during casting concrete energetic.
  • the waiting box 1 may have a length between 1 and 2.5 m.
  • the spacings between the various reinforcing irons 5 vary between 100 and 300 mm.
  • the diameters of the steels used can vary between 6, 8, 10 or 12 mm.
  • the connecting piece 8 can be made from a sheet of metal shaped by bending or bending techniques. This sheet of metal may be obtained beforehand by a step of cutting with the press during which the opening or openings 12 1 , 12 2 open are executed

Abstract

The system (1) has a hollow case (2) with a base (3) presenting a window (4) for permitting passage of reinforcement irons (5) in the form of a pin, where the system is made of metal. Each iron has a cross or loop shape (6) at one end projecting with respect to the case for being fit in the concrete. The iron has a strand curved inside the case for being fit in the concrete case at another side. A connection part (8) with openings cooperates with the window and a clipping unit for securing the connecting part on the base at the level of window.

Description

La présente invention concerne une boîte d'attente pour armature en béton.The present invention relates to a waiting box for concrete reinforcement.

Les boîtes d'attente sont destinées à la jonction des éléments en béton coulé par phases successives. Elles permettent de positionner des fers en forme d'épingle, présentant généralement à l'une des extrémités une forme de boucle en saillie par rapport audit boîtier afin d'être noyée dans le béton dans une première phase du bétonnage et, à l'autre extrémité, deux brins courbés à l'intérieur dudit boîtier creux en attente d'être noyés dans le béton dans une deuxième phase de bétonnage.The waiting boxes are intended for joining the cast concrete elements in successive phases. They make it possible to position pin-shaped irons, generally having at one end a loop shape projecting from said housing so as to be embedded in the concrete in a first phase of concreting and at the other end, two strands bent inside said hollow casing waiting to be embedded in the concrete in a second phase of concreting.

Dans une autre variante, de moindre résistance, ladite épingle peut être simple, au lieu d'être double, et présenter une extrémité en forme de crosse, au lieu d'une boucle. Alors, un seul brin est recourbé à l'intérieur du boîtier.In another variant, of lesser resistance, said pin may be simple, instead of being double, and have a stick-shaped end, instead of a loop. So, only one strand is bent inside the case.

Ces boîtes sont généralement formées d'un corps creux dont la base est percée d'orifices circulaires à travers lesquels sont enfilées les extrémités desdites épingles.These boxes are generally formed of a hollow body whose base is pierced with circular holes through which are threaded the ends of said pins.

Actuellement, dans le domaine des boîtes d'attente pour armature en béton, il est aussi connu des structures, qui s'apparentent à celle de la présente invention, notamment par le document FR-2.712.619 .Currently, in the field of waiting boxes for reinforcing concrete, it is also known structures, which are similar to that of the present invention, in particular by the document FR-2712619 .

Le document FR-2.712.619 décrit un caisson modulaire pour la mise en attente des fers d'armature de béton comprenant, d'une part, un corps creux, et d'autre part, une pluralité de couvercles aptes à être fixés aux bords longitudinaux de l'ouverture du corps creux en vue de fermer son ouverture.The document FR-2712619 discloses a modular box for placing on hold the reinforcing bars of concrete comprising, on the one hand, a hollow body, and on the other hand, a plurality of covers adapted to be fixed to the longitudinal edges of the opening of the body hollow in order to close its opening.

Bien que très répandues, de telles structures présentent quelques inconvénients.Although widespread, such structures have some disadvantages.

Tout d'abord, ce type de structure oblige à réaliser des ouvertures par perçage sur le corps creux de la boîte d'attente par diamètre d'acier utilisé.First, this type of structure requires to make openings by drilling on the hollow body of the waiting box by diameter of steel used.

En outre, l'introduction des aciers dans les ouvertures est une opération assez difficile et fastidieuse et dans la plupart des cas, l'assemblage des aciers est réalisé à la main.In addition, the introduction of steels in the openings is a rather difficult and tedious operation and in most cases, the assembly of steels is done by hand.

On connaît du document DE 87 05 506 U1 une boîte d'attente dont le boîtier creux est muni, pour chaque fer d'armature, de deux alésages circulaires, pour le passage des deux extrémités courbées du fer d'armature. Le fer est lié au boîtier grâce à deux pièces de liaison coniques, respectivement encliquetables dans les deux dits alésages circulaires.Document is known DE 87 05 506 U1 a waiting box whose hollow housing is provided, for each reinforcing iron, with two circular bores, for the passage of the two curved ends of the reinforcing iron. The iron is connected to the housing by means of two conical connecting pieces, respectively snap-fit in both said circular bores.

On connaît du document CH 666 931 une boîte d'attente dont le boîtier creux est muni, pour chaque fer d'armature, d'un alésage oblong pour le passage dudit fer. Une pièce de liaison, munie de pattes de verrouillage peut être encliquetée au niveau dudit alésage oblong pour assurer le maintien du fer au boîtier.Document is known CH 666 931 a waiting box whose hollow housing is provided, for each reinforcing iron, an oblong bore for the passage of said iron. A connecting piece provided with locking tabs can be snapped onto said oblong bore to hold the iron to the housing.

On connaît du document DE 195 46 820 une partie de connexion pour la production de pièces en béton préfabriquées, pourvues de connexions d'armature en saillie.Document is known DE 195 46 820 a connecting part for the production of prefabricated concrete parts, provided with protruding reinforcing connections.

Le but de la présente invention est de proposer une boîte d'attente pour armature en béton qui pallie les inconvénients cités précédemment, notamment en ce qui concerne le perçage des ouvertures sur le corps creux et l'introduction des fers dans ces ouvertures.The object of the present invention is to provide a waiting box for concrete reinforcement that overcomes the disadvantages mentioned above, especially as regards the drilling of the openings on the hollow body and the introduction of the irons in these openings.

Un autre but de la présente invention est de proposer une telle boîte d'attente pour armature en béton qui soit facile de mise en oeuvre, ceci se répercutant sur le coût de main d'oeuvre nécessaire, et qui en outre permette de réduire les stocks nécessaires des pièces détachées correspondantes en fonction des différentes situations.Another object of the present invention is to provide such a waiting box for concrete reinforcement that is easy to implement, this having repercussions on the cost of labor required, and which also allows to reduce inventory necessary spare parts for different situations.

Un autre but de la présente invention est de créer une liaison à l'aide d'acier haute adhérence (HA) entre deux éléments en béton, coulés l'un après l'autre.Another object of the present invention is to create a bond using high adhesion steel (HA) between two concrete elements, cast one after the other.

Un autre but de la présente invention est de permettre une mise en oeuvre sécurisée de la liaison permettant de respecter un dépliage des fers à béton de façon coaxiale, c'est-à-dire sans former de « baïonnette ».Another object of the present invention is to allow a secure implementation of the connection to respect a unfolding of reinforcing bars coaxially, that is to say without forming a "bayonet".

D'autres buts et avantages de l'invention apparaîtront au cours de la description qui va suivre qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the invention will become apparent from the following description which is given for information only and which is not intended to limit it.

L'invention concerne une boîte d'attente pour armature en béton, comprenant un boîtier creux dont la base présente au moins une fenêtre pour permettre le passage de fers d'armature en forme d'épingle, lesdits fers d'armature présentant à l'une des extrémités une forme de crosse ou de boucle en saillie par rapport audit boîtier afin d'être noyée dans le béton dans une première phase du bétonnage et, à l'autre extrémité, au moins un brin courbé à l'intérieur dudit boîtier creux en attente d'être noyé dans le béton dans une deuxième phase de bétonnage, ladite boîte d'attente comprenant en outre au moins une pièce de liaison pour coopérer avec ladite au moins une fenêtre et des moyens pour assujettir ladite pièce de liaison sur la base au niveau desdites fenêtres, se présentant sous la forme de moyens de clipsage de la pièce au niveau desdites fenêtres.The invention relates to a waiting box for concrete reinforcement, comprising a hollow housing whose base has at least one window to allow the passage of pin-shaped reinforcing bars, said reinforcing bars presenting to the one of the ends of a stick-shaped or projecting loop relative to said housing to be embedded in the concrete in a first phase of concreting and, at the other end, at least one curved strand inside said hollow housing waiting to be embedded in the concrete in a second concrete phase, said holding box further comprising at least one connecting piece for cooperating with said at least one window and means for securing said connecting piece on the base at said windows, in the form of clipping means of the room at said windows.

Selon l'invention:

  • lesdites fenêtres existantes sur la base du boîtier présentent deux volets latéraux inclinés l'un vers l'autre,
  • ladite pièce de liaison se présente sous la forme d'un profilé semi tubulaire,
et ladite boîte étant agencée de telle manière que, lorsqu'on insère la pièce de liaison au travers de la fenêtre à partir de l'intérieur du boîtier creux, les volets latéraux s'écartent avant de reprendre leur position naturelle afin d'assurer l'encliquetage de la pièce de liaison dans ladite fenêtre, ladite pièce de liaison et ladite fenêtre étant de dimensions telles de façon à bloquer ladite pièce de liaison dans le sens d'insertion, dans ladite position d'encliquetage desdits volets latéraux.According to the invention:
  • said existing windows on the base of the housing have two lateral flaps inclined towards one another,
  • said connecting piece is in the form of a semi-tubular profile,
and said box being arranged in such a way that, when the connecting piece is inserted through the window from the inside of the hollow housing, the side flaps move apart before resuming their natural position to ensure the clipping of the connecting piece in said window, said connecting piece and said window being of such dimensions as to block said connecting piece in the direction of insertion, in said latching position of said side flaps.

L'invention sera mieux comprise à la lecture de la description suivante, accompagnée des dessins en annexe parmi lesquels :

  • la figure 1 est une vue en perspective arrière d'une boîte d'attente selon un mode de réalisation de la présente invention,
  • la figure 2 est une vue schématique partielle d'une boîte d'attente, telle que représentée à la figure 1, dans une phase intermédiaire de fabrication,
  • la figure 3 est une vue schématique latérale d'une boîte d'attente, telle qu'illustrée à la figure 1,
  • la figure 4 est une vue schématique de dessous d'une boîte d'attente, telle qu'illustrée à la figure 3, selon la coupe A-A,
  • la figure 5 est une vue partielle en perspective de détail de la pièce de liaison et d'un fer d'armature selon une variante de la présente invention,
  • la figure 6 est une vue schématique d'une pièce de liaison, selon la présente invention,
  • la figure 7 est une représentation schématique, dans une phase intermédiaire de fabrication, d'une des fenêtres prévue dans le corps de boîte illustrée aux figures précédentes,
  • la figure 8 est une vue de détail illustrant l'encliquetage de la pièce de liaison dans la fenêtre du boîtier creux selon le mode de réalisation illustré à la figure 1,
  • les 91, 92, 93 sont respectivement des vues schématiques d'un boîtier creux, d'une pièce de liaison et d'un fer d'armature selon un second mode de réalisation de l'invention,
  • la figure 10 est une vue de dessus d'une boîte d'attente selon les figures 9 1 , 9 2 , 9 3 , une fois assemblée,
  • la figure 11 est une vue selon la coupe X-X telle qu'illustrée à la figure 10.
The invention will be better understood on reading the following description, accompanied by the appended drawings, among which:
  • the figure 1 is a rear perspective view of a waiting box according to an embodiment of the present invention,
  • the figure 2 is a partial schematic view of a waiting box, as shown in FIG. figure 1 , in an intermediate phase of manufacture,
  • the figure 3 is a schematic side view of a waiting box, as illustrated in figure 1 ,
  • the figure 4 is a schematic view from below of a waiting box, as illustrated in figure 3 , according to the AA cut,
  • the figure 5 is a partial perspective view of detail of the connecting piece and a reinforcing iron according to a variant of the present invention,
  • the figure 6 is a schematic view of a connecting piece, according to the present invention,
  • the figure 7 is a schematic representation, in an intermediate phase of manufacture, of one of the windows provided in the box body illustrated in the preceding figures,
  • the figure 8 is a detail view illustrating the snapping of the connecting piece in the window of the hollow casing according to the embodiment illustrated at figure 1 ,
  • 9 1 , 9 2 , 9 3 are respectively schematic views of a hollow housing, a connecting piece and a reinforcing iron according to a second embodiment of the invention,
  • the figure 10 is a top view of a waiting box according to the figures 9 1 , 9 2 , 9 3 once assembled,
  • the figure 11 is a view according to section XX as illustrated in figure 10 .

L'invention concerne tout d'abord une boîte d'attente 1 pour armature en béton, comprenant un boîtier creux 2 dont la base 3 présente au moins une fenêtre 4 pour permettre le passage des fers d'armature 5 en forme d'épingle, double ou simple.The invention relates firstly to a waiting box 1 for a concrete reinforcement, comprising a hollow housing 2 whose base 3 has at least one window 4 to allow the passage of the pin-shaped reinforcing bars 5, double or single.

Lesdits fers d'armature 5 présentent traditionnellement à l'une des extrémités une forme de boucle 6 en saillie par rapport audit boîtier, notamment à ladite base 3, afin d'être noyée dans le béton dans une première phase du bétonnage et, à l'autre extrémité, deux brins 71, 72 courbés à l'intérieur dudit boîtier creux 2 en attente d'être noyés dans le béton dans une deuxième phase de bétonnage.Said reinforcing irons 5 traditionally have at one end a loop shape 6 projecting from said housing, in particular at said base 3, so as to be embedded in the concrete in a first phase of concreting and, at the other end, two strands 7 1 , 7 2 curved inside said hollow casing 2 waiting to be embedded in the concrete in a second phase of concreting.

Telle que montrée aux figures 1 et 2, ladite boîte d'attente 1 comprend en outre au moins une pièce de liaison 8 pour coopérer avec ladite au moins une fenêtre 4 et des moyens pour assujettir ladite pièce de liaison 8 sur la base 3 au niveau desdites fenêtres 4.As shown to figures 1 and 2 , said waiting box 1 further comprises at least one connecting piece 8 to cooperate with said at least one window 4 and means for securing said connecting piece 8 on the base 3 at said windows 4.

Dans un mode de réalisation avantageux, lesdits moyens pour assujettir ladite pièce de liaison (8) sur la base (3) se présentent sous la forme de moyens de clipsage de ladite pièce (8) au niveau desdites fenêtres (4).In an advantageous embodiment, said means for securing said connecting piece (8) on the base (3) are in the form of clipping means of said piece (8) at said windows (4).

Toutefois, dans d'autres variantes de réalisation, lesdites moyens pour assujettir la pièce de liaison pourraient se présenter sous la forme de soudures ou rivetages.However, in other embodiments, said means for securing the connecting piece could be in the form of welds or rivets.

Selon un mode particulier de la présente invention, ladite pièce de liaison 8 présente deux ouvertures 121, 122 débouchantes latérales, telles que montrées plus particulièrement aux figures 5 et 6.According to a particular embodiment of the present invention, said connecting piece 8 has two openings 12 1 , 12 2 lateral openings, as shown more particularly to Figures 5 and 6 .

Ces deux ouvertures latérales 121, 122 correspondent sensiblement aux dimensions des fers correspondants, et permettent de maintenir en place lesdits fers d'armature 5.These two lateral openings 12 1 , 12 2 substantially correspond to the dimensions of the corresponding irons, and make it possible to hold said reinforcing bars 5 in place.

Elles permettent, dans un premier temps, également d'introduire les fers d'armature 5 de façon simple et efficace, par rotation de la pièce de liaison 8 lors de son introduction entre les branches de la boucle 6 des fers respectifs 5. Puis dans un second temps, on place l'ensemble « pièce de liaison et fer d'armature » dans la fenêtre 4 de la boîte d'attente 1.They allow, in a first step, also to introduce the reinforcing irons 5 in a simple and effective way, by rotation of the connecting piece 8 during its introduction between the branches of the loop 6 of the respective irons 5. Then in a second time, place the assembly "connecting piece and reinforcing iron" in the window 4 of the waiting box 1.

Cela permet en outre de s'affranchir des caractéristiques dimensionnelles des fers à béton, puisqu'il ne sera plus nécessaire de percer la base du corps de la boîte d'attente selon les différents diamètres de fers à béton. Par exemple, pour quatre types de fers à béton, on divise par quatre le stock de boîtes nécessaires étant donné que les minces pièces de liaison vont être utilisées quels que soient les entraxes des épingles.This also makes it possible to dispense with the dimensional characteristics of the reinforcing bars, since it will no longer be necessary to drill the base of the body of the waiting box according to the different diameters of reinforcing bars. For example, for four types of reinforcing bars, the stock of boxes is divided by four because the thin link pieces will be used regardless of the pin spacings.

Par ailleurs, selon la présente invention, la boîte d'attente 1, telle que montrée à la figure 1, présente en outre un couvercle 9 pour fermer le côté ouvert dudit boîtier creux 2.Furthermore, according to the present invention, the waiting box 1, as shown in FIG. figure 1 further has a cover 9 for closing the open side of said hollow housing 2.

Ce couvercle 9 permet de cacher la partie 71, 72 desdits fers d'armature 5 qui se trouvent courbés à l'intérieur dudit boîtier creux 2.This cover 9 makes it possible to hide the part 7 1 , 7 2 of said reinforcing bars 5 which are curved inside said hollow case 2.

Telles que montrées à la figure 5, lesdites fenêtres 4 présentes sur la base 3 dudit boîtier 2 présentent une forme rectangulaire, après emboutissage, avec deux volets latéraux 101, 102 et deux volets transversaux raidisseurs 111, 112. La figure 7 montre la découpe de la base 3 du corps de boîte avant emboutissage. Au cours de cette opération, les volets latéraux et transversaux seront fermés.As shown in figure 5 , said windows 4 present on the base 3 of said housing 2 have a rectangular shape, after stamping, with two lateral flaps 10 1 , 10 2 and two transverse stiffening flaps 11 1 , 11 2 . The figure 7 shows the cutout of the base 3 of the box body before stamping. During this operation, the lateral and transverse flaps will be closed.

Selon la présente invention, les moyens de clipsage de ladite pièce de liaison 8 sur la base 3 au niveau desdites fenêtres 4 peuvent être constitués par lesdits volets latéraux 101, 102 et transversaux 111, 112, comme montré à la figure 5.According to the present invention, the clipping means of said connecting piece 8 on the base 3 at said windows 4 may be constituted by said lateral flaps 10 1 , 10 2 and transverse 11 1 , 11 2 , as shown in FIG. figure 5 .

Les volets latéraux 101, 102 peuvent être de différentes formes, notamment ils peuvent présenter une forme de demi-cercle, ovoïde, polygonale, triangulaire ou autres.The side flaps 10 1 , 10 2 may be of different shapes, in particular they may have a shape of semicircle, ovoid, polygonal, triangular or other.

Les volets latéraux 101, 102 grâce à leur structure, légèrement inclinés et convergents, et à leur élasticité, permettent à la pièce de liaison 8 de se clipser lorsque celle-ci est enfoncée totalement.The side flaps 10 1 , 10 2 due to their structure, slightly inclined and convergent, and their elasticity, allow the connecting piece 8 to snap when it is fully depressed.

En particulier, les volets latéraux 101, 102 vont s'écarter lorsque l'on enfonce la pièce de liaison 8 dans ladite fenêtre 4, puis reprendre leur position naturelle ensuite, ledit volet venant alors s'encliqueter dans ladite pièce de liaison 8.In particular, the lateral flaps 10 1 , 10 2 will deviate when the connecting piece 8 is pushed into said window 4, then resume their natural position then, said flap then snapping into said connecting piece 8 .

Selon les exemples illustrés aux figures, la pièce de liaison 8 est insérée à partir de l'intérieur du boîtier creux 2. Les volets latéraux, lorsqu'ils reviennent à leur position naturelle permettent de bloquer ladite pièce de liaison 8 dans un sens, opposé au sens d'insertion. Dans la position d'encliquetage des volets latéraux, la pièce de liaison est bloquée dans l'autre sens, venant en butée avec les bords de la fenêtre 4, la pièce de liaison 8 étant notamment de dimensions supérieures aux dimensions de la fenêtre 4.According to the examples illustrated in the figures, the connecting piece 8 is inserted from the inside of the hollow case 2. The lateral flaps, when they return to their natural position, allow said connecting piece 8 to be locked in a direction opposite to one another. in the sense of insertion. In the latching position of the lateral flaps, the connecting piece is locked in the other direction, coming into abutment with the edges of the window 4, the connecting piece 8 being notably larger than the dimensions of the window 4.

Selon un mode de réalisation, particulièrement illustré selon l'exemple de la figure 11, la pièce de liaison 8 peut présenter deux ailes terminales 14, notamment longitudinales et coplanaires.According to one embodiment, particularly illustrated according to the example of the figure 11 the connecting piece 8 may have two terminal wings 14, in particular longitudinal and coplanar.

Lorsque la pièce de liaison est fixée à la fenêtre 4 du boîtier creux 2, tel qu'illustré à la figure 11, les ailes terminales 14 bloquent la pièce de liaison dans un sens, à savoir le sens d'insertion, en venant s'engager avec la paroi interne du boîtier creux 2. Selon cet exemple, la pièce de liaison se présente sous la forme d'un profilé semi tubulaire en demi trapèze.When the connecting piece is fixed to the window 4 of the hollow case 2, as illustrated in FIG. figure 11 , the terminal wings 14 block the connecting piece in one direction, namely the direction of insertion, by engaging with the inner wall of the hollow housing 2. According to this example, the connecting piece is in the form of a semi-tubular profile in half trapezium.

Les volets transversaux 111, 112, aussi appelés volets raidisseurs, permettent, quant à eux, de raidir la boîte d'attente 1 dans son sens perpendiculaire, et une bonne stabilité pendant la phase de vibration du béton, et empêchant, en outre, la pièce de liaison 8 de sortir de la boîte d'attente 1.The transverse flaps 11 1 , 11 2 , also called stiffening flaps, allow, for their part, to stiffen the waiting box 1 in its perpendicular direction, and good stability during the vibration phase of the concrete, and preventing, furthermore , the connecting piece 8 to leave the waiting box 1.

Dans le mode de réalisation représenté, les volets latéraux 111, 112 sont inclinés et convergents par rapport à la base 3 de la boîte.In the embodiment shown, the lateral flaps 11 1 , 11 2 are inclined and convergent relative to the base 3 of the box.

Il est à remarquer que lesdits volets latéraux permettent d'obturer les dégagements laissés par la pièce de liaison 8 de chaque côté de celle-ci.It should be noted that said side flaps serve to close off the clearances left by the connecting piece 8 on each side thereof.

A titre indicatif non limitatif, comme illustrée à la figure 6, ladite pièce de liaison 8 présente la forme d'un demi-cylindre, d'un demi-parallélépipède ou d'un demi-cube, voire des compromis entre lesdites formes.As a non-restrictive indicative, as illustrated in figure 6 said connecting piece 8 has the form of a half-cylinder, a half-parallelepiped or a half-cube, or even compromises between said forms.

Plus précisément, telle qu'illustrée aux figures, la pièce de liaison 8 se présente sous la forme d'un profilé semi tubulaire. Elle peut présenter un profil en demi trapèze, demi circulaire, voire un compromis de ces formes.More specifically, as shown in the figures, the connecting piece 8 is in the form of a semi-tubular profile. It may have a half trapezoid profile, half circular, or even a compromise of these forms.

A ce sujet, un des avantages de la boîte d'attente 1 objet de la présente invention est de permettre un dégagement total du coude du fer d'armature 5, au niveau de la pièce de liaison 8, afin de permettre un dépliage des fers sans baïonnette.In this regard, one of the advantages of the waiting box 1 object of the present invention is to allow a total clearance of the bend of the reinforcing iron 5, at the connecting piece 8, to allow unfolding irons without bayonet.

Selon un mode particulier de la présente invention, ladite pièce de liaison 8, telle que montrée aux figures 5 et 6, présente une réservation pour entretoise 13 afin de bloquer ladite boîte d'attente 1 entre deux coffrages.According to a particular embodiment of the present invention, said connecting piece 8, as shown in FIGS. Figures 5 and 6 , presents a reservation for spacer 13 to block said waiting box 1 between two forms.

La réservation pour entretoise 13 permet d'y insérer un acier classique, normalement d'un diamètre de 6 mm ou 8 mm, afin de bloquer la boîte d'attente entre les deux coffrages, évitant de ce fait le glissement de celle-ci lors d'un coulage du béton énergique.The reservation for spacer 13 makes it possible to insert a conventional steel, normally with a diameter of 6 mm or 8 mm, in order to block the waiting box between the two forms, thus avoiding the sliding thereof during casting concrete energetic.

A titre d'exemple non limitatif, on a obtenu de bons résultats avec une boîte d'attente 1 fabriquée en métal ou encore dans d'autres matériaux, sous réserve d'être amovible pour être enlevé avant le bétonnage de deuxième phase.By way of non-limiting example, good results have been obtained with a waiting box 1 made of metal or other materials, provided it is removable to be removed before the second phase concreting.

La boîte d'attente 1 peut présenter une longueur entre 1 et 2,5 m. Les espacements entre les différents fers d'armature 5 varient entre 100 et 300 mm. Les diamètres des aciers utilisés peuvent varier entre 6, 8, 10 ou 12 mm.The waiting box 1 may have a length between 1 and 2.5 m. The spacings between the various reinforcing irons 5 vary between 100 and 300 mm. The diameters of the steels used can vary between 6, 8, 10 or 12 mm.

Selon un mode de réalisation, la pièce de liaison 8 peut être fabriquée à partir d'une feuille de métal mise en forme par les techniques de pliage ou de cintrage. Cette feuille de métal peut être préalablement obtenue par une étape de découpe à la presse pendant laquelle la ou les ouvertures 121, 122 débouchantes sont exécutéesAccording to one embodiment, the connecting piece 8 can be made from a sheet of metal shaped by bending or bending techniques. This sheet of metal may be obtained beforehand by a step of cutting with the press during which the opening or openings 12 1 , 12 2 open are executed

Naturellement, d'autres modes de mise en oeuvre, à la portée de l'homme de l'art, auraient pu être envisagés sans pour autant sortir du cadre de l'invention.Naturally, other modes of implementation, within the reach of those skilled in the art, could have been envisaged without departing from the scope of the invention.

La description précédente est faite sur la base de fers d'armature en forme d'épingle double, mais elle peut être tout à fait transposée pour une utilisation de fers d'armature en forme de crosse, ou simple épingle. Dans ce cas, la pièce de liaison présentera une seule dite ouverture latérale. De même, dans ledit boîtier creux, il n'y aura qu'undit brin courbé.The foregoing description is made on the basis of double pin-shaped reinforcing irons, but it can be entirely transposed for use in the form of butt-shaped reinforcing bars, or simple pins. In this case, the connecting piece will have a single said lateral opening. Similarly, in said hollow housing, there will be only one curved strand.

Claims (10)

  1. A rebar connection system (1) for concrete reinforcement, comprising a hollow housing (2) whereof the base (3) exhibits at least one window (4) for letting through nib-shaped reinforcement stirrups (5), wherein said reinforcement stirrups (5) exhibit at one of the ends a form of cross or loop (6) protruding relative to said housing (2) so as to be sunk in the concrete during a first concreting phase and, at the other end, at least one curved strand (71, 72) inside said hollow housing (2) waiting to be sunk in the concrete in a second concreting phase, said rebar connection system (1) comprising moreover at least one linking piece (8) in order to co-operate with said at least one window (4) and means for slaving said linking piece (8) on the base (3) at the level of said windows (4), being in the form of clipsing means of said piece (8) at the level of said windows (4), characterised in that:
    - said windows (4) existing on the base (3) of said housing (2) exhibit two lateral flaps (101), 102) tilted towards one another,
    - said linking piece (8) being in the form of a semi-tubular profile, and said rebar connection system being arranged so that when the linking piece (8) is inserted through the window (4) from the inside of the hollow housing (2); the lateral flaps (101, 102) move apart before resuming their natural position for snapping the linking piece (8) in said window (4), said linking piece and said window being of such dimensions to lock down said linking piece in the insertion direction, in the snapping position of said lateral flaps.
  2. A rebar connection system (1) according to claim 1, characterised in that said linking piece (8) exhibits at least one lateral emerging opening (121, 122).
  3. A rebar connection system (1) according to claim 1, characterised in that it exhibits moreover a lid (9) for closing the open side of said hollow housing (2).
  4. A rebar connection system (1) according to claim 1, characterised in that said windows (4) existing on the base (3) of said housing (2) exhibit moreover two stiffening transversal flaps (111, 112).
  5. A rebar connection system according to any of the claims 1 to 4, wherein the linking piece (8) exhibits a semi-trapezoidal or semi-circular shaped profile.
  6. A rebar connection system (1) according to any of the claims 1 to 5, wherein said linking piece (8) exhibits two terminal wings (64) and wherein when the linking piece (8) is fastened to said window (4) of the hollow housing (2), said terminal wings (14) lock down the linking piece in one direction engaging into the internal wall of the hollow housing (2).
  7. A rebar connection system (1) according to claim 1, characterised in that said linking piece (8) includes a recess for a spacer (13) so as to lock down said rebar connection system (1) between two experiments.
  8. A rebar connection system (1) according to any of the claims 1 to 7, wherein the windows (4) are rectangular in shape.
  9. A rebar connection system (1) according to any of the claims 1 to 8, wherein the linking piece (8) is manufactured from a metal sheet shaped by folding or bending techniques.
  10. A rebar connection system (1) according to claims 2 and 9, wherein the metal sheet with said at least one lateral emerging opening (121, 122) is obtained by a press-cutting step.
EP07370021A 2006-10-10 2007-10-10 Reinforcement connection box Not-in-force EP1914363B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0608872A FR2906825A1 (en) 2006-10-10 2006-10-10 Reinforcement bar box for concrete reinforcement, has connection part with openings cooperating with window, and clipping unit for securing connecting part on base of hollow case at level of window for passage of reinforcement irons

Publications (2)

Publication Number Publication Date
EP1914363A1 EP1914363A1 (en) 2008-04-23
EP1914363B1 true EP1914363B1 (en) 2010-08-25

Family

ID=37993588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07370021A Not-in-force EP1914363B1 (en) 2006-10-10 2007-10-10 Reinforcement connection box

Country Status (4)

Country Link
EP (1) EP1914363B1 (en)
AT (1) ATE479000T1 (en)
DE (1) DE602007008660D1 (en)
FR (1) FR2906825A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0807274D0 (en) * 2008-04-22 2008-05-28 Romtech Ltd Reinforing cage attachment and assembled reinforcing cage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8336278U1 (en) * 1983-12-17 1984-03-29 Hoff, Walter, 4000 Düsseldorf REINFORCEMENT ELEMENT
DE8705506U1 (en) * 1987-04-14 1987-10-01 Max Frank Gmbh & Co Kg, 8448 Leiblfing, De
FR2712619B1 (en) * 1993-11-17 1995-12-22 Mure Ets Modular box for placing concrete reinforcement bars on standby.
DE19546820A1 (en) * 1995-12-15 1997-06-19 Albin Nessmann Moulding unit forming ends of concrete sections with reinforcing shackles
DE19826985C2 (en) * 1998-06-18 2003-07-03 Georg Weidner form member

Also Published As

Publication number Publication date
DE602007008660D1 (en) 2010-10-07
FR2906825A1 (en) 2008-04-11
EP1914363A1 (en) 2008-04-23
ATE479000T1 (en) 2010-09-15

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