EP3315692B1 - Device for attaching a supporting part and method for manufacturing a construction element incorporating said attachment device - Google Patents

Device for attaching a supporting part and method for manufacturing a construction element incorporating said attachment device Download PDF

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Publication number
EP3315692B1
EP3315692B1 EP17187082.7A EP17187082A EP3315692B1 EP 3315692 B1 EP3315692 B1 EP 3315692B1 EP 17187082 A EP17187082 A EP 17187082A EP 3315692 B1 EP3315692 B1 EP 3315692B1
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EP
European Patent Office
Prior art keywords
fixing device
interface
formwork
magnetized structure
attraction force
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EP17187082.7A
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German (de)
French (fr)
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EP3315692A1 (en
Inventor
Pierre BOLLARD
Pino Tornatore
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Spurgin Leonhart SAS
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Spurgin Leonhart SAS
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Publication of EP3315692A1 publication Critical patent/EP3315692A1/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/061Non-reusable forms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/16Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/41Connecting devices specially adapted for embedding in concrete or masonry
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G19/00Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
    • E04G19/003Arrangements for stabilising the forms or for moving the forms from one place to another

Definitions

  • the present invention relates to the field of construction and relates to a device for fixing at least one shoring piece and a method of manufacturing a construction element,
  • Prefabricated walls are intended for the construction of buildings and have the advantage of facilitating the implementation of the site.
  • prefabricated walls are manufactured in a factory and then delivered to the site for assembly.
  • Such prefabricated walls can for example consist of walls with integrated formwork, also called prewalls and which include two concrete walls, spaced from one another by stiffeners, serving as formwork.
  • Such walls with integrated formwork are arranged vertically then filled with concrete.
  • the walls with integrated formwork are held vertically by means of two push-pull props, well known to those skilled in the art.
  • Such support makes it possible to stabilize the structure before filling the concrete and before hardening the concrete to prevent the walls with integrated formwork from tilting, for example under the effect of the wind. This step of stabilizing prefabricated walls is also essential with regard to personal safety.
  • fixing sockets comprising a tapped cylindrical portion are most often anchored in the wall(s) of the prefabricated wall at the time of their manufacture.
  • the props can thus be fixed to the wall via a fixing screw screwed into this fixing socket.
  • the fixing sleeves are, in a known manner, associated with a fixing device, commonly called a base or insert.
  • An alternative consists of providing a similar plastic fixing device whose cylindrical portion is threaded.
  • the fixing sleeve is screwed onto the threaded cylindrical portion of the fixing device.
  • due to the association by screwing there results an increase in implementation time, both when installing the fixing sleeves on each fixing device, and when removing them.
  • such a fixing device comprising a threaded cylindrical portion can alternatively comprise a metal body instead of a plastic body.
  • the frustoconical portion is then provided at its base with a magnet allowing the fixing of this frustoconical portion to the metal formwork.
  • Such a fixing device has the advantage of being robust and thus reusable many times.
  • This alternative has the same drawbacks as the aforementioned fixing device.
  • WO 2015/140969 A1 discloses a fixing device according to the preamble of claim 1.
  • the subject of the invention is a device for fixing at least one shoring piece according to claim 1.
  • the fixing device 1 of at least one shoring piece 2 on at least part of a surface 3' of formwork 3 of a construction element 16 comprises a body 4 comprising at least a first interface 5 d 'interaction with at least part of a surface 3' of a formwork 3 ( Figures 6A and 6B ) and a second interface 6 for interaction with at least one shoring part 2 ( figures 3, 4 , 6B ).
  • shoring piece 2 ( figures 3, 4 And 6B ), a body, preferably metallic, comprising a cooperation interface 18 with the second interface 6 of the fixing device 1.
  • the shoring part 2 is intended to be integrated into a construction element 16 and to be fixed to a prop via the cooperation interface 18.
  • construction element 16 an element prefabricated in a factory, such as a wall of a wall with integrated formwork or an element cast in place on the site in a hydraulic material, for example concrete.
  • the first interface 5 integrates at least one first magnetic structure 7 to generate a first magnetic attraction force and the second interface 6 comprises means for retaining in translation 8, 19.
  • such a fixing device 1 allows reliable fixing of the fixing device 1 with the formwork 3 of the construction element 16. This avoids that during the formwork step of the construction element 16, the material of filling does not flow, between the fixing device 1 and the formwork 3.
  • the first interface 5 integrating a first magnetic structure 7, the fixing device 1 can easily be fixed to the metal formwork 3, simply by placing it via the first interface 5 on part of the surface 3' of the formwork 3. No added fixing means is necessary, such as glue, as is the case in the prior art.
  • the interaction and fixing between the first magnetic structure 7 and the metal formwork 3 taking place under the effect of the first magnetic attraction force, any mechanical wear of the securing device is avoided.
  • fixing 1 can be reused a very large number of times.
  • the fixing device 1 is also easy to remove from the formwork 3, since it is enough to counter the first force of magnetic attraction, for example by pulling on the fixing device 1 to allow its removal from the formwork 3.
  • a fixing device 1 also allows reliable fixing with the shoring part 2 via the translational retaining means 8, 19 to prevent the filling material from flowing into the shoring part 2.
  • the fixing device 1 is also easy to remove from the shoring part 2, since it suffices to pull with a traction force in the opposite direction to the first force of magnetic attraction on the fixing device 1 to allow its removal from the shoring piece 2. No screwing operation is necessary, as is the case in the prior art.
  • the retaining means comprise at least a second magnetic structure 8 to generate a second magnetic attraction force.
  • the second interface 6 integrating a second magnetic structure 8, the fixing device 1 can easily be fixed to the metal shoring part 2.
  • the interaction and fixing between the second magnetic structure 8 and the metallic shoring part 2 taking place under the effect of the second magnetic force of attraction, any mechanical wear of the fixing device 1 is avoided.
  • the fixing device 1 can be reused a very large number of times.
  • the fixing device 1 is also easy to remove from the shoring piece 2, since it suffices to counter the second force of magnetic attraction, for example by pulling according to a traction force in the opposite direction to the second force of magnetic attraction on the fixing device 1 to allow its removal from the shoring part 2.
  • the first force of attraction generated by the first magnetized structure 7 can be equal to the second force of attraction generated by the second magnetized structure 8.
  • the first force of attraction generated by the first magnetized structure 7 may differ from the second force of attraction generated by the second magnetized structure 8.
  • the first force of attraction generated by the first magnetized structure 7 may be greater than the second force of attraction generated by the second magnetized structure 8.
  • this configuration allows a fixing of the fixing device 1 with the formwork 3, which is stronger than the fixing of the latter with the shoring piece 2, which makes it possible to subsequently facilitate the step of removing the formwork from the element. of construction 16.
  • the fixing device 1 is automatically separated from the shoring part 2 and remains fixed on the formwork 3. No tools are required to allow the formwork to be removed. This results in ease of implementation of the fixing device 1.
  • the body 4 may comprise a first end 9 comprising the first magnetized structure 7 and a second end 10 comprising the second magnetized structure 8, the first end 9 and the second end 10 being opposite.
  • At least one of the first interface 5 and/or second interface 6 may respectively comprise at least a first housing 11 and/or a second housing 12 in which at least the first magnetic structure 7 or the second magnetic structure 8 is positioned respectively ( figures 1A, 1B , 2 , 5A, 5B ).
  • the fixing device 1 may comprise a first housing 11 and a second housing 12.
  • the first housing 11 receives the first magnetic structure 7, and the second housing 12 receives the second magnetic structure 8. More particularly, the first housing 11 is arranged at the first end 9 and the second housing 12 is arranged at the second end 10.
  • the body 4 may include at least one cooperation interface with a tool.
  • such a cooperation interface makes it possible to facilitate the removal of the fixing device 1 from the shoring part 2 and/or from the formwork 3, for example when the first or the second magnetic attraction force exerted respectively by the first structure magnetized 7 or the second magnetic structure 8 is difficult to counter at the human force alone, or when the second magnetic attraction force exerted by the second magnetized structure 8 is such that the fixing device 1 remains fixed to the shoring part 2 after the step of stripping the construction element 16.
  • Channel 15 can be cylindrical and tapped. Such a channel 15 allows the insertion of a tool having a threaded interface, such as for example a threaded rod.
  • the body 4 may comprise a first portion 13 extending along the longitudinal axis A of the body 4 and a second portion 14 extending along the longitudinal axis A of the body 4, the first portion 13 having a section greater than the section of the second portion 14.
  • the first portion 13 may comprise the first interface 5 and the second portion 14 may comprise the second interface 6 ( figures 1A, 1B , 2 , 5A, 5B ).
  • the first portion 13 may have a frustoconical shape and the second portion 14 may have a cylindrical shape, as illustrated by the figures 1A to 2 .
  • the cylindrical shape of the second portion 14 can be inserted into the threaded cylindrical portion 18 of the shoring part 2.
  • the external surface 17 of the second portion 14 may comprise the anti-slip means 19.
  • the step of installing the fixing device 1 on the formwork 3 has the advantage of being quick and of not requiring gluing. It is sufficient to place the first interface 5 of the fixing device 1 on the part of the surface 3' of the formwork 3.
  • At least one shoring part 2 can be made available and during an association step the second interface 6 of said at least one fixing device 1 and a cooperation interface 18 complementary to said at least one shoring piece 2 can be associated and fixed together by magnetization ( Figure 6B ).
  • the step of associating the fixing device 1 with the shoring part 2 has the advantage of being quick and of not requiring screwing.
  • a hydraulic material preferably concrete, can be poured into the formwork 3 ( Figure 7 ).
  • the fixing device 1 is separated from the formwork 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)

Description

La présente invention concerne le domaine de la construction et a pour objet un dispositif de fixation d'au moins une pièce d étaiement et un procédé de fabrication d'un élément de construction,The present invention relates to the field of construction and relates to a device for fixing at least one shoring piece and a method of manufacturing a construction element,

Les murs préfabriqués sont destinés à la construction de bâtiment et présentent l'avantage de faciliter la mise en oeuvre du chantier.Prefabricated walls are intended for the construction of buildings and have the advantage of facilitating the implementation of the site.

En général, les murs préfabriqués sont fabriqués en usine puis livrés sur le chantier en vue de leur assemblage. De tels murs préfabriqués peuvent par exemple consister en des murs à coffrage intégré, également appelés prémurs et qui comprennent deux parois en béton, espacées l'une de l'autre par des raidisseurs, servant de coffrage. Sur le chantier, de tels murs à coffrage intégré sont disposés à la verticale puis remplis de béton. Lors d'une phase provisoire préalable au remplissage, les murs à coffrage intégré sont maintenus à la verticale au moyen de deux étais tirant poussant, bien connu de l'homme du métier. Un tel maintien permet de stabiliser l'ouvrage avant le remplissage du béton et avant le durcissement du béton pour éviter que les murs à coffrage intégré ne basculent, par exemple sous l'effet du vent. Cette étape de stabilisation des murs préfabriqués est également primordiale en ce qui concerne la sécurité des personnes. Afin de faciliter la fixation des étais, des douilles de fixation comprenant une portion cylindrique taraudée, sont le plus souvent ancrées dans la ou les parois du mur préfabriqué au moment de leur fabrication. Les étais peuvent ainsi être fixés au mur par l'intermédiaire d'une vis de fixation vissée dans cette douille de fixation.In general, prefabricated walls are manufactured in a factory and then delivered to the site for assembly. Such prefabricated walls can for example consist of walls with integrated formwork, also called prewalls and which include two concrete walls, spaced from one another by stiffeners, serving as formwork. On the construction site, such walls with integrated formwork are arranged vertically then filled with concrete. During a temporary phase prior to filling, the walls with integrated formwork are held vertically by means of two push-pull props, well known to those skilled in the art. Such support makes it possible to stabilize the structure before filling the concrete and before hardening the concrete to prevent the walls with integrated formwork from tilting, for example under the effect of the wind. This step of stabilizing prefabricated walls is also essential with regard to personal safety. In order to facilitate the fixing of the props, fixing sockets comprising a tapped cylindrical portion are most often anchored in the wall(s) of the prefabricated wall at the time of their manufacture. The props can thus be fixed to the wall via a fixing screw screwed into this fixing socket.

Pour procéder à l'ancrage des douilles de fixation dans la ou les parois au moment de la fabrication, les douilles de fixation sont, de manière connue associées à un dispositif de fixation, communément appelé, embase ou insert.To anchor the fixing sleeves in the wall(s) at the time of manufacture, the fixing sleeves are, in a known manner, associated with a fixing device, commonly called a base or insert.

L'on connaît déjà un dispositif de fixation comprenant un corps en plastique comprenant une portion ayant une allure cylindrique et une portion tronconique de plus grande section que celle d'allure cylindrique. La portion cylindrique est destinée à être associée à la douille de fixation par emboîtement serré dans la portion taraudée, et la portion tronconique est destinée à être fixée à un coffrage métallique dans lequel la paroi est destinée à être moulée. Le maintien de la douille de fixation sur la portion cylindrique du dispositif de fixation se fait par friction. La fixation de la portion tronconique sur le coffrage se fait par collage. Toutefois, cette façon de procéder nécessite après démoulage de gratter la colle résiduelle, ce qui impacte le temps de fabrication. Il en résulte également une finition peu esthétique du fait que des résidus de colle peuvent également rester sur la paroi. De plus, du fait du maintien par friction, un tel dispositif de fixation subit une usure rapide. Il en résulte que celui-ci est réutilisable peu de fois et doit en règle générale être remplacé après chaque utilisation.We already know a fixing device comprising a plastic body comprising a portion having a cylindrical appearance and a frustoconical portion of larger section than that of cylindrical appearance. The cylindrical portion is intended to be associated with the fixing sleeve by tight fitting in the threaded portion, and the frustoconical portion is intended to be fixed to a metal formwork in which the wall is intended to be molded. Maintaining the fixing sleeve on the portion cylindrical of the fixing device is done by friction. The frustoconical portion is fixed to the formwork by gluing. However, this way of proceeding requires scraping off the residual glue after unmolding, which impacts manufacturing time. This also results in an unsightly finish as glue residue may also remain on the wall. In addition, due to holding by friction, such a fixing device undergoes rapid wear. As a result, it is reusable only a few times and must generally be replaced after each use.

Une alternative consiste à prévoir un dispositif de fixation similaire en plastique dont la portion cylindrique est filetée. Dans ce cas, la douille de fixation est vissée sur la portion cylindrique filetée du dispositif de fixation. Cependant, du fait de l'association par vissage, il résulte un accroissement du temps de mise en oeuvre, aussi bien lors de la mise en place des douilles de fixation sur chaque dispositif de fixation, que lors de leur retrait.An alternative consists of providing a similar plastic fixing device whose cylindrical portion is threaded. In this case, the fixing sleeve is screwed onto the threaded cylindrical portion of the fixing device. However, due to the association by screwing, there results an increase in implementation time, both when installing the fixing sleeves on each fixing device, and when removing them.

De manière connue, un tel dispositif de fixation comprenant une portion cylindrique filetée peut alternativement comprendre un corps en métal à la place d'un corps en plastique. Dans ce cas, la portion tronconique est alors munie à sa base d'un aimant permettant la fixation de cette portion tronconique sur le coffrage métallique. Un tel dispositif de fixation présente l'avantage d'être robuste et ainsi réutilisable de nombreuses fois. Cette alternative présente cependant les mêmes inconvénients que le dispositif de fixation précité. WO 2015/140969 A1 divulgue un dispositif de fixation selon le préambule de la revendication 1.In known manner, such a fixing device comprising a threaded cylindrical portion can alternatively comprise a metal body instead of a plastic body. In this case, the frustoconical portion is then provided at its base with a magnet allowing the fixing of this frustoconical portion to the metal formwork. Such a fixing device has the advantage of being robust and thus reusable many times. This alternative, however, has the same drawbacks as the aforementioned fixing device. WO 2015/140969 A1 discloses a fixing device according to the preamble of claim 1.

La présente invention a pour but de proposer une solution rapide et aisée à mettre en oeuvre, résistante et économique permettant de surmonter les limitations de l'état de la technique indiquées ci-dessus.The present invention aims to propose a quick and easy to implement, resistant and economical solution making it possible to overcome the limitations of the state of the art indicated above.

A cet effet, l'invention a pour objet un dispositif de fixation d'au moins une pièce d'étaiement selon la revendication 1.To this end, the subject of the invention is a device for fixing at least one shoring piece according to claim 1.

La présente invention concerne également un procédé de fabrication d'un élément de construction, préférentiellement en béton, comportant au moins un dispositif de fixation selon la revendication 14. L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à plusieurs modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1A est une vue en perspective du dispositif de fixation selon l'invention,
  • la figure 1B est une vue en perspective du dispositif de fixation vue de dessous représenté à la figure 1A,
  • la figure 2 est une vue en coupe du dispositif de fixation représenté à la figure 1A,
  • la figure 3 est une vue en perspective de dessus du dispositif de fixation selon l'invention représenté à la figure 1A associé à une pièce d'étaiement,
  • la figure 4 est une vue en perspective de dessous du dispositif de fixation selon l'invention représenté à la figure 1A associé à une pièce d'étaiement,
  • la figure 5A est une vue en perspective d'un exemple de dispositif de fixation,
  • la figure 5B est une vue en perspective du dispositif de fixation vue de dessous représenté à la figure 5A,
  • la figure 6A est une vue en perspective d'une partie d'un coffrage sur lequel est disposé un dispositif de fixation selon l'invention représenté à la figure 1A,
  • la figure 6B est une vue en perspective d'une partie d'un coffrage sur lequel est disposé un dispositif de fixation selon l'invention représenté à la figure 1A associé à une pièce d'étaiement, et
  • la figure 7 est une vue en perspective d'un dispositif de fixation selon l'invention représenté à la figure 1A associé à une pièce d'étaiement intégré dans un élément de construction en matière de remplissage.
The present invention also relates to a method of manufacturing a construction element, preferably made of concrete, comprising at least one fixing device according to claim 14. The invention will be better understood, thanks to the description below, which relates to several preferred embodiments, given by way of non-limiting examples, and explained with reference to the appended schematic drawings, in which:
  • there Figure 1A is a perspective view of the fixing device according to the invention,
  • there Figure 1B is a perspective view of the fixing device seen from below shown in Figure 1A ,
  • there figure 2 is a sectional view of the fixing device shown in Figure 1A ,
  • there Figure 3 is a top perspective view of the fixing device according to the invention shown in Figure 1A associated with a shoring piece,
  • there Figure 4 is a perspective view from below of the fixing device according to the invention shown in Figure 1A associated with a shoring piece,
  • there figure 5A is a perspective view of an example of a fixing device,
  • there Figure 5B is a perspective view of the fixing device seen from below shown in figure 5A ,
  • there Figure 6A is a perspective view of a part of a formwork on which is arranged a fixing device according to the invention shown in Figure 1A ,
  • there Figure 6B is a perspective view of a part of a formwork on which is arranged a fixing device according to the invention shown in Figure 1A associated with a shoring piece, and
  • there Figure 7 is a perspective view of a fixing device according to the invention shown in Figure 1A associated with a shoring piece integrated into a construction element in terms of filling.

Comme l'illustrent les figures 1A à 7, le dispositif de fixation 1 d'au moins une pièce d'étaiement 2 sur au moins une partie d'une surface 3' de coffrage 3 d'un élément de construction 16, comprend un corps 4 comprenant au moins une première interface 5 d'interaction avec au moins une partie d'une surface 3' d'un coffrage 3 (figures 6A et 6B) et une seconde interface 6 d'interaction avec au moins une pièce d'étaiement 2 (figures 3, 4, 6B).As illustrated by the figures 1A to 7 , the fixing device 1 of at least one shoring piece 2 on at least part of a surface 3' of formwork 3 of a construction element 16, comprises a body 4 comprising at least a first interface 5 d 'interaction with at least part of a surface 3' of a formwork 3 ( Figures 6A and 6B ) and a second interface 6 for interaction with at least one shoring part 2 ( figures 3, 4 , 6B ).

On entend par le terme pièce d'étaiement 2 (figures 3, 4 et 6B), un corps, de préférence métallique, comprenant une interface de coopération 18 avec la seconde interface 6 du dispositif de fixation 1. La pièce d'étaiement 2 est destinée à être intégrée dans un élément de construction 16 et à être fixée à un étai par l'intermédiaire de l'interface de coopération 18.The term shoring piece 2 ( figures 3, 4 And 6B ), a body, preferably metallic, comprising a cooperation interface 18 with the second interface 6 of the fixing device 1. The shoring part 2 is intended to be integrated into a construction element 16 and to be fixed to a prop via the cooperation interface 18.

On entend par le terme élément de construction 16, un élément préfabriqué en usine, tel qu'une paroi d'un mur à coffrage intégré ou un élément coulé en place sur le chantier dans un matériau hydraulique, par exemple du béton.By the term construction element 16 is meant an element prefabricated in a factory, such as a wall of a wall with integrated formwork or an element cast in place on the site in a hydraulic material, for example concrete.

Dans le dispositif de fixation 1, la première interface 5 intègre au moins une première structure aimantée 7 pour générer une première force d'attraction magnétique et la seconde interface 6 comprend des moyens de retenue en translation 8, 19.In the fixing device 1, the first interface 5 integrates at least one first magnetic structure 7 to generate a first magnetic attraction force and the second interface 6 comprises means for retaining in translation 8, 19.

Avantageusement, un tel dispositif de fixation 1 permet une fixation fiable du dispositif de fixation 1 avec le coffrage 3 de l'élément de construction 16. On évite ainsi que lors de l'étape de coffrage de l'élément de construction 16, le matériau de remplissage ne coule, entre le dispositif de fixation 1 et le coffrage 3. La première interface 5 intégrant une première structure aimantée 7, le dispositif de fixation 1 peut aisément être fixé au coffrage 3 métallique, simplement en le posant par la première interface 5 sur une partie de la surface 3' du coffrage 3. Aucun moyen de fixation rapporté n'est nécessaire, tel que de la colle, comme c'est le cas dans l'art antérieur. L'interaction et la fixation entre la première structure aimantée 7 et le coffrage 3 métallique se faisant sous l'effet de la première force d'attraction magnétique, on évite toute usure mécanique du dispositif de fixation 1. Il en résulte que le dispositif de fixation 1 peut être réutilisé un très grand nombre de fois. Par ailleurs, le dispositif de fixation 1 est également aisé à retirer du coffrage 3, puisqu'il suffit de contrer la première force d'attraction magnétique, par exemple en tirant sur le dispositif de fixation 1 pour permettre son retrait du coffrage 3. Avantageusement, un tel dispositif de fixation 1 permet également une fixation fiable avec la pièce d'étaiement 2 via les moyens de retenue en translation 8, 19 pour éviter que le matériau de remplissage ne coule dans la pièce d'étaiement 2. Par ailleurs, le dispositif de fixation 1 est également aisé à retirer de la pièce d'étaiement 2, puisqu'il suffit de tirer selon une force de traction de sens opposé à la première force d'attraction magnétique sur le dispositif de fixation 1 pour permettre son retrait de la pièce d'étaiement 2. Aucune opération de vissage n'est nécessaire, comme c'est le cas dans l'art antérieur.Advantageously, such a fixing device 1 allows reliable fixing of the fixing device 1 with the formwork 3 of the construction element 16. This avoids that during the formwork step of the construction element 16, the material of filling does not flow, between the fixing device 1 and the formwork 3. The first interface 5 integrating a first magnetic structure 7, the fixing device 1 can easily be fixed to the metal formwork 3, simply by placing it via the first interface 5 on part of the surface 3' of the formwork 3. No added fixing means is necessary, such as glue, as is the case in the prior art. The interaction and fixing between the first magnetic structure 7 and the metal formwork 3 taking place under the effect of the first magnetic attraction force, any mechanical wear of the securing device is avoided. fixing 1. As a result, the fixing device 1 can be reused a very large number of times. Furthermore, the fixing device 1 is also easy to remove from the formwork 3, since it is enough to counter the first force of magnetic attraction, for example by pulling on the fixing device 1 to allow its removal from the formwork 3. Advantageously , such a fixing device 1 also allows reliable fixing with the shoring part 2 via the translational retaining means 8, 19 to prevent the filling material from flowing into the shoring part 2. Furthermore, the fixing device 1 is also easy to remove from the shoring part 2, since it suffices to pull with a traction force in the opposite direction to the first force of magnetic attraction on the fixing device 1 to allow its removal from the shoring piece 2. No screwing operation is necessary, as is the case in the prior art.

Selon l'invention et telle que représentée aux figures 1A à 2, les moyens de retenue comprennent au moins une seconde structure aimantée 8 pour générer une seconde force d'attraction magnétique.According to the invention and as represented in figures 1A to 2 , the retaining means comprise at least a second magnetic structure 8 to generate a second magnetic attraction force.

La seconde interface 6 intégrant une seconde structure aimantée 8, le dispositif de fixation 1 peut aisément être fixé à la pièce d'étaiement 2 métallique. L'interaction et la fixation entre la seconde structure aimantée 8 et la pièce d'étaiement 2 métallique se faisant sous l'effet de la seconde force d'attraction magnétique, on évite toute usure mécanique du dispositif de fixation 1. Il en résulte que le dispositif de fixation 1 peut être réutilisé un très grand nombre de fois. Par ailleurs, le dispositif de fixation 1 est également aisé à retirer de la pièce d'étaiement 2, puisqu'il suffit de contrer la seconde force d'attraction magnétique, par exemple en tirant selon une force de traction de sens opposé à la seconde force d'attraction magnétique sur le dispositif de fixation 1 pour permettre son retrait de la pièce d'étaiement 2.The second interface 6 integrating a second magnetic structure 8, the fixing device 1 can easily be fixed to the metal shoring part 2. The interaction and fixing between the second magnetic structure 8 and the metallic shoring part 2 taking place under the effect of the second magnetic force of attraction, any mechanical wear of the fixing device 1 is avoided. As a result, the fixing device 1 can be reused a very large number of times. Furthermore, the fixing device 1 is also easy to remove from the shoring piece 2, since it suffices to counter the second force of magnetic attraction, for example by pulling according to a traction force in the opposite direction to the second force of magnetic attraction on the fixing device 1 to allow its removal from the shoring part 2.

Selon une première possibilité, la première force d'attraction générée par la première structure aimantée 7 peut être égale à la seconde force d'attraction générée par la seconde structure aimantée 8.According to a first possibility, the first force of attraction generated by the first magnetized structure 7 can be equal to the second force of attraction generated by the second magnetized structure 8.

Selon une deuxième possibilité, la première force d'attraction générée par la première structure aimantée 7 peut différer de la seconde force d'attraction générée par la seconde structure aimantée 8.According to a second possibility, the first force of attraction generated by the first magnetized structure 7 may differ from the second force of attraction generated by the second magnetized structure 8.

Dans ce cas, la première force d'attraction générée par la première structure aimantée 7 peut être supérieure à la seconde force d'attraction générée par la seconde structure aimantée 8.In this case, the first force of attraction generated by the first magnetized structure 7 may be greater than the second force of attraction generated by the second magnetized structure 8.

Avantageusement, cette configuration permet une fixation, du dispositif de fixation 1 avec le coffrage 3, plus forte que la fixation de celui-ci avec la pièce d'étaiement 2, ce qui permet de faciliter ultérieurement l'étape de décoffrage de l'élément de construction 16. En effet, lorsque l'élément de construction 16 est retiré du coffrage 3 après durcissement du matériau hydraulique dans lequel celui-ci est formé, le dispositif de fixation 1 est automatiquement séparé de la pièce d'étaiement 2 et reste fixé sur le coffrage 3. Aucun outil n'est nécessaire pour permettre le décoffrage. Il en résulte une facilité de mise en oeuvre du dispositif de fixation 1.Advantageously, this configuration allows a fixing of the fixing device 1 with the formwork 3, which is stronger than the fixing of the latter with the shoring piece 2, which makes it possible to subsequently facilitate the step of removing the formwork from the element. of construction 16. Indeed, when the construction element 16 is removed from the formwork 3 after hardening of the hydraulic material in which it is formed, the fixing device 1 is automatically separated from the shoring part 2 and remains fixed on the formwork 3. No tools are required to allow the formwork to be removed. This results in ease of implementation of the fixing device 1.

Le corps 4 peut comprendre une première extrémité 9 comprenant la première structure aimantée 7 et une seconde extrémité 10 comprenant la seconde structure aimantée 8, la première extrémité 9 et la seconde extrémité 10 étant opposées.The body 4 may comprise a first end 9 comprising the first magnetized structure 7 and a second end 10 comprising the second magnetized structure 8, the first end 9 and the second end 10 being opposite.

Au moins une des première interface 5 et/ou seconde interface 6 peut comprendre respectivement au moins un premier logement 11 et/ou un second logement 12 dans lequel est positionnée respectivement au moins la première structure aimantée 7 ou la seconde structure aimantée 8 (figures 1A, 1B, 2, 5A, 5B).At least one of the first interface 5 and/or second interface 6 may respectively comprise at least a first housing 11 and/or a second housing 12 in which at least the first magnetic structure 7 or the second magnetic structure 8 is positioned respectively ( figures 1A, 1B , 2 , 5A, 5B ).

En effet, comme le représentent les figures 1A à 2, le dispositif de fixation 1 peut comprendre un premier logement 11 et un second logement 12. Le premier logement 11 reçoit la première structure aimantée 7, et le second logement 12 reçoit la seconde structure aimantée 8. Plus particulièrement, le premier logement 11 est disposé à la première extrémité 9 et le second logement 12 est disposé à la seconde extrémité 10.Indeed, as represented by the figures 1A to 2 , the fixing device 1 may comprise a first housing 11 and a second housing 12. The first housing 11 receives the first magnetic structure 7, and the second housing 12 receives the second magnetic structure 8. More particularly, the first housing 11 is arranged at the first end 9 and the second housing 12 is arranged at the second end 10.

Le corps 4 peut comprendre au moins une interface de coopération avec un outil.The body 4 may include at least one cooperation interface with a tool.

L'interface de coopération peut comprendre au moins un canal 15 débouchant au niveau de la première interface 5 et/ou de la seconde interface 6.The cooperation interface may include at least one channel 15 opening at the first interface 5 and/or the second interface 6.

Avantageusement, une telle interface de coopération permet de faciliter le retrait du dispositif de fixation 1 de la pièce d'étaiement 2 et/ou du coffrage 3, par exemple lorsque la première ou la seconde force d'attraction magnétique exercée respectivement par la première structure aimantée 7 ou la seconde structure aimantée 8 est difficile à contrer à la seule force humaine, ou encore lorsque la seconde force d'attraction magnétique exercée par la seconde structure aimantée 8 est telle que le dispositif de fixation 1 reste fixé à la pièce d'étaiement 2 après l'étape de décoffrage de l'élément de construction 16.Advantageously, such a cooperation interface makes it possible to facilitate the removal of the fixing device 1 from the shoring part 2 and/or from the formwork 3, for example when the first or the second magnetic attraction force exerted respectively by the first structure magnetized 7 or the second magnetic structure 8 is difficult to counter at the human force alone, or when the second magnetic attraction force exerted by the second magnetized structure 8 is such that the fixing device 1 remains fixed to the shoring part 2 after the step of stripping the construction element 16.

Le canal 15 peut être cylindrique et taraudé. Un tel canal 15 permet l'insertion d'un outil ayant une interface filetée, comme par exemple une tige filetée.Channel 15 can be cylindrical and tapped. Such a channel 15 allows the insertion of a tool having a threaded interface, such as for example a threaded rod.

L'interface de coopération peut comprendre un unique canal 15, l'unique canal 15 étant traversant, s'étendant le long d'un axe longitudinal A du corps 4 et débouchant au niveau de la première extrémité 9, d'une part, et de la seconde extrémité 10, d'autre part (figure 2).The cooperation interface may comprise a single channel 15, the single channel 15 being through, extending along a longitudinal axis A of the body 4 and opening out at the first end 9, on the one hand, and of the second end 10, on the other hand ( figure 2 ).

Le canal 15 peut déboucher dans le premier logement 11 et/ou dans le second logement 12 (figure 2).Channel 15 can open into the first housing 11 and/or into the second housing 12 ( figure 2 ).

Le corps 4 peut comprendre une première portion 13 s'étendant selon l'axe longitudinal A du corps 4 et une seconde portion 14 s'étendant selon l'axe longitudinal A du corps 4, la première portion 13 ayant une section supérieure à la section de la seconde portion 14. La première portion 13 peut comprendre la première interface 5 et la seconde portion 14 peut comprendre la seconde interface 6 (figures 1A, 1B, 2, 5A, 5B).The body 4 may comprise a first portion 13 extending along the longitudinal axis A of the body 4 and a second portion 14 extending along the longitudinal axis A of the body 4, the first portion 13 having a section greater than the section of the second portion 14. The first portion 13 may comprise the first interface 5 and the second portion 14 may comprise the second interface 6 ( figures 1A, 1B , 2 , 5A, 5B ).

Avantageusement, la seconde portion 14 est destinée à coopérer avec la pièce d'étaiement 2 via l'interface de coopération 18, comme le représentent les figures 3 et 4. Cette coopération se fait par emboîtement dans une portion cylindrique 18 taraudée de la pièce d'étaiement 2, formant l'interface de coopération de la pièce d'étaiement 2. Plus particulièrement, la seconde portion 14 peut présenter une forme pouvant être insérée au moins en partie dans la portion cylindrique 18 taraudée.Advantageously, the second portion 14 is intended to cooperate with the shoring part 2 via the cooperation interface 18, as represented by the figures 3 and 4 . This cooperation is done by nesting in a threaded cylindrical portion 18 of the shoring piece 2, forming the cooperation interface of the shoring piece 2. More particularly, the second portion 14 can have a shape that can be inserted at least partly in the tapped cylindrical portion 18.

La première portion 13 peut présenter une forme tronconique et la seconde portion 14 peut présenter une forme cylindrique, comme l'illustrent les figures 1A à 2.The first portion 13 may have a frustoconical shape and the second portion 14 may have a cylindrical shape, as illustrated by the figures 1A to 2 .

Avantageusement, la forme cylindrique de la seconde portion 14 peut être insérée dans la portion cylindrique 18 taraudée de la pièce d'étaiement 2.Advantageously, the cylindrical shape of the second portion 14 can be inserted into the threaded cylindrical portion 18 of the shoring part 2.

La section de la seconde portion 14 peut être inférieure à la section de la portion cylindrique 18 taraudée de la pièce d'étaiement 2.The section of the second portion 14 may be less than the section of the tapped cylindrical portion 18 of the shoring part 2.

Dans ce cas, il existe un jeu et l'emboîtement ne génère ni friction ni frottement entre la seconde portion 14 cylindrique et la portion cylindrique 18 taraudée de la pièce d'étaiement 2. On évite ainsi l'usure du dispositif de fixation 1. La fixation entre le dispositif de fixation 1 et la pièce d'étaiement 2 est uniquement réalisée au moyen de la seconde structure aimantée 8. On évite ainsi après emboîtement un mouvement de translation de la seconde portion 14 dans la portion cylindrique 18.In this case, there is play and the interlocking does not generate any friction or friction between the second cylindrical portion 14 and the tapped cylindrical portion 18 of the shoring part 2. This avoids wear of the fixing device 1. The fixing between the fixing device 1 and the shoring part 2 is only carried out by means of the second magnetic structure 8. This avoids, after nesting, a translational movement of the second portion 14 in the cylindrical portion 18.

Selon un exemple ne faisant pas partie de l'invention revendiquée, illustré aux figures 5A et 5B, la première interface 5 intègre au moins une première structure aimantée 7 pour générer une première force d'attraction magnétique et les moyens de retenue de la seconde interface 6 comprennent des moyens antidérapants 19.According to an example not forming part of the claimed invention, illustrated in Figures 5A and 5B , the first interface 5 integrates at least a first magnetic structure 7 to generate a first magnetic attraction force and the retaining means of the second interface 6 comprise anti-slip means 19.

Dans ce cas, la surface externe 17 de la seconde portion 14 peut comprendre les moyens antidérapants 19.In this case, the external surface 17 of the second portion 14 may comprise the anti-slip means 19.

Ces moyens antidérapants 19 peuvent être intégrés ou rapportés. Dans ce dernier cas, ils peuvent consister en des joints annulaires 19 (figures 5A et 5B) souples ou similaire, emboîtés sur la seconde portion 14 et espacés les uns des autres. Les moyens antidérapants 19 peuvent être en caoutchouc ou en silicone ou en tout autre élastomère.These anti-slip means 19 can be integrated or attached. In the latter case, they can consist of annular joints 19 ( Figures 5A and 5B ) flexible or similar, fitted onto the second portion 14 and spaced from each other. The anti-slip means 19 can be made of rubber or silicone or any other elastomer.

Dans cet exemple du dispositif de fixation 1, la seconde interface 6 peut intégrer au moins une seconde structure aimantée 8 pour générer une seconde force d'attraction magnétique, comme décrit précédemment ou non.In this example of the fixing device 1, the second interface 6 can integrate at least one second magnetic structure 8 to generate a second magnetic attraction force, as described previously or not.

Dans ce dernier cas qui n'est pas illustré, seule une force de friction entre les moyens antidérapants 19 et la portion cylindrique 18 taraudée de la pièce d'étaiement 2 permet un maintien du dispositif de fixation 1 avec la pièce d'étaiement 2. On évite ainsi après emboîtement un mouvement de translation de la seconde portion 14 dans la portion cylindrique 18. Le dispositif de fixation 1 est également aisé à retirer de la pièce d'étaiement 2, puisqu'il suffit de contrer la force de friction exercée par les moyens antidérapants 19, par exemple en tirant sur le dispositif de fixation 1 pour permettre son retrait de la pièce d'étaiement 2. L'étape de décoffrage en est par conséquent facilitée.In this last case which is not illustrated, only a friction force between the anti-slip means 19 and the threaded cylindrical portion 18 of the shoring part 2 allows the fixing device 1 to be held in place with the shoring part 2. This avoids, after nesting, a translational movement of the second portion 14 in the cylindrical portion 18. The fixing device 1 is also easy to remove from the shoring part 2, since it is sufficient to counter the friction force exerted by the anti-slip means 19, for example by pulling on the fixing device 1 to allow its removal from the shoring piece 2. The stripping step is therefore facilitated.

Le corps 4 du dispositif de fixation est de préférence métallique. De préférence, le corps 4 peut être en acier ou en inox.The body 4 of the fixing device is preferably metallic. Preferably, the body 4 can be made of steel or stainless steel.

La première structure aimantée 7 et/ou la seconde structure aimantée 8 peuvent consister en un aimant, préférentiellement permanent, ou au moins une couche de matériau magnétique déposée respectivement au niveau des première et seconde extrémités 9, 10.The first magnetized structure 7 and/or the second magnetized structure 8 may consist of a magnet, preferably permanent, or at least one layer of magnetic material deposited respectively at the first and second ends 9, 10.

Par exemple, la composition de l'aimant peut comprendre du néodyme ou de la ferrite.For example, the composition of the magnet may include neodymium or ferrite.

A titre d'exemple, la première structure aimantée 7 peut comprendre un aimant ayant une force d'adhérence comprise entre 5 kilogrammes et 10 kilogrammes et de préférence égale à 8,5 kilogrammes.For example, the first magnetized structure 7 may comprise a magnet having an adhesive force of between 5 kilograms and 10 kilograms and preferably equal to 8.5 kilograms.

A titre d'exemple, la seconde structure aimantée 8 peut comprendre un aimant ayant une force d'adhérence comprise entre 300 grammes et 1000 grammes et de préférence égale à 500 grammes.For example, the second magnetic structure 8 may comprise a magnet having an adhesive force of between 300 grams and 1000 grams and preferably equal to 500 grams.

Comme le montrent les figures 1A, 1B, 2, 5B et 5A, les aimants 7 et 8 peuvent être de forme annulaire.As shown in the figures 1A, 1B , 2 , 5B and 5A , the magnets 7 and 8 can be of annular shape.

Dans ce cas, les premier et/ou second logements 11, 12 peuvent être un fraisage annulaire ou une gorge annulaire. Dans ce cas, les premier et second logements 11, 12 peuvent être coaxiaux et peuvent être centrés sur l'axe longitudinal A.In this case, the first and/or second housings 11, 12 can be an annular milling or an annular groove. In this case, the first and second housings 11, 12 can be coaxial and can be centered on the longitudinal axis A.

Le procédé de fabrication d'un élément de construction 16, préférentiellement en béton, comporte au moins un dispositif de fixation.The method of manufacturing a construction element 16, preferably made of concrete, comprises at least one fixing device.

Conformément à l'invention, le procédé est caractérisé en ce qu'il comprend au moins successivement les étapes suivantes :

  • une étape de mise à disposition, lors de laquelle un coffrage 3, et au moins un dispositif de fixation 1 tel que décrit précédemment sont mis à disposition,
  • une étape d'installation, lors de laquelle ledit au moins un dispositif de fixation 1 est disposé et fixé par aimantation par sa première interface 5 sur une partie d'une surface 3' du coffrage 3 (figure 6A).
In accordance with the invention, the method is characterized in that it comprises at least successively the following steps:
  • a provision step, during which a formwork 3, and at least one fixing device 1 as described above are made available,
  • an installation step, during which said at least one fixing device 1 is arranged and fixed by magnetization by its first interface 5 on a part of a surface 3' of the formwork 3 ( Figure 6A ).

L'étape d'installation du dispositif de fixation 1 sur le coffrage 3 présente l'avantage d'être rapide et de ne pas nécessiter de collage. Il suffit en effet de poser la première interface 5 du dispositif de fixation 1 sur la partie de la surface 3' du coffrage 3.The step of installing the fixing device 1 on the formwork 3 has the advantage of being quick and of not requiring gluing. It is sufficient to place the first interface 5 of the fixing device 1 on the part of the surface 3' of the formwork 3.

Lors de l'étape de mise à disposition, au moins une pièce d'étaiement 2 peut être mise à disposition et lors d'une étape d'association la seconde interface 6 dudit au moins un dispositif de fixation 1 et une interface de coopération 18 complémentaire de ladite au moins une pièce d'étaiement 2 peuvent être associées et fixées entre elles par aimantation (figure 6B).During the provision step, at least one shoring part 2 can be made available and during an association step the second interface 6 of said at least one fixing device 1 and a cooperation interface 18 complementary to said at least one shoring piece 2 can be associated and fixed together by magnetization ( Figure 6B ).

L'étape d'association du dispositif de fixation 1 avec la pièce d'étaiement 2 présente l'avantage d'être rapide et de ne pas nécessiter de vissage.The step of associating the fixing device 1 with the shoring part 2 has the advantage of being quick and of not requiring screwing.

Lors d'une étape de remplissage, un matériau hydraulique, préférentiellement du béton peut être coulé dans le coffrage 3 (figure 7).During a filling step, a hydraulic material, preferably concrete, can be poured into the formwork 3 ( Figure 7 ).

Lors d'une étape de décoffrage, ultérieure à l'étape de remplissage et au durcissement du matériau hydraulique, l'élément de construction 16 est retiré du coffrage 3.During a stripping step, subsequent to the filling step and the hardening of the hydraulic material, the construction element 16 is removed from the formwork 3.

Du fait de l'aimantation du dispositif de fixation 1 au niveau de la première interface 5 et la seconde interface 6, le dispositif de fixation 1 reste fixé sur le coffrage 3 ou sur la pièce d'étaiement 2.Due to the magnetization of the fixing device 1 at the level of the first interface 5 and the second interface 6, the fixing device 1 remains fixed on the formwork 3 or on the shoring part 2.

Préférentiellement lorsque la première structure aimantée 7 est choisie pour générer une première force d'attraction supérieure à la seconde force d'attraction générée par la seconde structure aimantée 8, lors de l'étape de décoffrage, le dispositif de fixation 1 reste fixé par aimantation sur le coffrage 3. Il en résulte que l'élément de construction 16 obtenu est prêt à l'emploi et intègre au moins une pièce d'étaiement 2 qui n'est plus associée au dispositif de fixation 1.Preferably when the first magnetic structure 7 is chosen to generate a first force of attraction greater than the second force of attraction generated by the second magnetized structure 8, during the stripping step, the fixing device 1 remains fixed by magnetization on the formwork 3. The result is that the construction element 16 obtained is ready for use and integrates at least one shoring part 2 which is no longer associated with the fixing device 1.

Lors d'une étape de ramassage, ultérieure à l'étape de décoffrage, le dispositif de fixation 1 est désolidarisé du coffrage 3.During a collection step, subsequent to the stripping step, the fixing device 1 is separated from the formwork 3.

Cette désolidarisation peut se faire en appliquant une force de traction de sens opposé à la première force d'attraction magnétique sur le dispositif de fixation 1 au niveau de la seconde interface 6, soit manuellement, soit à l'aide de moyens robotiques, tel qu'un bras robotisé.This separation can be done by applying a traction force in the opposite direction to the first force of magnetic attraction on the fixing device 1 at the second interface 6, either manually or using robotic means, such as a robotic arm.

Bien entendu, l'invention n'est pas limitée aux modes de réalisations décrits et représentés aux dessins annexés.Of course, the invention is not limited to the embodiments described and represented in the accompanying drawings.

Claims (16)

  1. Fixing device (1) for fixing at least one shoring part (2) to at least a part of a surface (3') of formwork (3) comprising:
    - a body (4) comprising at least one first interaction interface (5) with at least one part of a surface (3') of a formwork (3) of a construction element (16) and a second interaction interface (6) with at least one shoring part (2),
    the first interface (5) incorporating at least one first magnetized structure (7) for generating a first magnetic attraction force,
    the second interface (6) comprising translation retaining means, the fixing device (1) being characterized in that the retaining means comprise at least one second magnetized structure (8) for generating a second magnetic attraction force.
  2. Fixing device according to Claim 1, characterized in that the first attraction force generated by the first magnetized structure (7) is equal to the second attraction force generated by the second magnetized structure (8).
  3. Fixing device according to Claim 1, characterized in that the first attraction force generated by the first magnetized structure (7) differs from the second attraction force generated by the second magnetized structure (8).
  4. Fixing device according to Claim 3, characterized in that the first attraction force generated by the first magnetized structure (7) is greater than the second attraction force generated by the second magnetized structure (8).
  5. Fixing device according to any one of Claims 1 to 4, characterized in that the body (4) comprises a first end (9) comprising the first magnetized structure (7) and a second end (10) comprising the second magnetized structure (8), the first end (9) and the second end (10) being at opposite points of the body (4).
  6. Fixing device according to any one of Claims 1 to 5, characterized in that in that at least one element of the first interface (5) and/or the second interface (6) respectively comprises at least one first housing (11) and/or one second housing (12) in which at least the first magnetized structure (7) or the second magnetized structure (8) is respectively positioned.
  7. Fixing device according to any one of Claims 1 to 6, characterized in that the body (4) comprises at least one cooperation interface with a tool.
  8. Fixing device according to Claim 7, characterized in that the cooperation interface comprises at least one channel (15) emerging at the first interface (5) and/or the second interface (6).
  9. Fixing device according to Claim 8, characterized in that the channel (15) is cylindrical and tapped.
  10. Fixing device according to either one of Claims 8 and 9, characterized in that the cooperation interface comprises a single channel (15), the single channel (15) being a through channel, extending along a longitudinal axis of the body (4) and emerging at the first end (9), on one side, and the second end (10), on the other side.
  11. Fixing device according to any one of Claims 8 to 10 taken in combination with Claim 6, characterized in that the channel (15) emerges in the first housing (11) and/or in the second housing (12).
  12. Fixing device according to any one of Claims 1 to 11, characterized in that the body (4) comprises a first portion (13) extending along a longitudinal axis of the body (4) and a second portion (14) extending along the longitudinal axis of the body (4), the first portion (13) having a section greater than the section of the second portion (14), in that the first portion (13) comprises the first interface (5) and in that the second portion (14) comprises the second interface (6).
  13. Fixing device according to Claim 12, characterized in that the first portion (13) has a cylindrical form and in that the second portion (14) has a tapered form.
  14. Method for manufacturing a construction element (16), preferentially made of concrete, comprising at least one fixing device (1), characterized in that it comprises at least, in succession, the following steps:
    - a step of provision, during which a formwork (3), and at least one fixing device (1) according to any one of Claims 1 to 13, are made available,
    - a step of installation, during which said at least one fixing device (1) is disposed and fixed by magnetization by its first interface (5) onto a part of a surface (3') of the formwork (3).
  15. Manufacturing method according to Claim 14, characterized in that, during the provision step, at least one shoring part (2) is made available and in that, during a step of joining the second interface (6) of said at least one fixing device (1) and a cooperation interface (18) complementing said at least one shoring part (2) are joined and fixed together by magnetization.
  16. Manufacturing method according to Claim 15, characterized in that, during a filling step, a hydraulic material, preferentially concrete, is poured into the formwork (3).
EP17187082.7A 2016-10-26 2017-08-21 Device for attaching a supporting part and method for manufacturing a construction element incorporating said attachment device Active EP3315692B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1660398A FR3057890B1 (en) 2016-10-26 2016-10-26 DEVICE FOR FASTENING A SHORTING PIECE AND METHOD FOR MANUFACTURING A CONSTRUCTION ELEMENT INCORPORATING SUCH FASTENING DEVICE

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EP3315692A1 EP3315692A1 (en) 2018-05-02
EP3315692B1 true EP3315692B1 (en) 2023-12-13

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EP17187082.7A Active EP3315692B1 (en) 2016-10-26 2017-08-21 Device for attaching a supporting part and method for manufacturing a construction element incorporating said attachment device

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Publication number Priority date Publication date Assignee Title
FR3098532B1 (en) 2019-07-11 2021-10-22 Spurgin Leonhart Device for fixing a shoring piece and method of manufacturing a construction element incorporating said fixing device

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP2006112224A (en) * 2004-09-16 2006-04-27 Tokai Kenshiyou:Kk Insert for supporting reinforcing bar

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JPS5341192Y2 (en) * 1975-08-27 1978-10-04
JP2745399B2 (en) * 1995-12-22 1998-04-28 ハイドロタイル・アジア株式会社 Sheath pipe mounting device for horizontal tightening holes
JPH11336234A (en) * 1998-05-29 1999-12-07 Koka Kyo Auxiliary anchorage device for mounting embedding component and mounting method of embedding component making use thereof
WO2015140969A1 (en) * 2014-03-19 2015-09-24 株式会社Aoi Insert fitting

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006112224A (en) * 2004-09-16 2006-04-27 Tokai Kenshiyou:Kk Insert for supporting reinforcing bar

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FR3057890A1 (en) 2018-04-27
EP3315692A1 (en) 2018-05-02
FR3057890B1 (en) 2022-07-15

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