EP4303379A1 - Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet - Google Patents

Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet Download PDF

Info

Publication number
EP4303379A1
EP4303379A1 EP23183472.2A EP23183472A EP4303379A1 EP 4303379 A1 EP4303379 A1 EP 4303379A1 EP 23183472 A EP23183472 A EP 23183472A EP 4303379 A1 EP4303379 A1 EP 4303379A1
Authority
EP
European Patent Office
Prior art keywords
metal sheet
formwork
frame
formwork panel
panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23183472.2A
Other languages
German (de)
French (fr)
Inventor
Roger De Kalbermatten
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR2207052A external-priority patent/FR3137698A1/en
Application filed by Individual filed Critical Individual
Publication of EP4303379A1 publication Critical patent/EP4303379A1/en
Pending legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/06—Forming boards or similar elements the form surface being of metal
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings

Definitions

  • the invention relates to a composite formwork panel, intended to be attached to a formwork frame to serve as a formwork face and support wedges, capable of maintaining a dummy, a reservation or an anchor, in a position determined in relation to to the frame, said panel comprising a non-metallic core and a metal sheet.
  • a formwork panel of this type is used in the field of concrete construction.
  • the metal sheet increases the rigidity of the panel and allows the use of a lower resistance and lighter material for the central core.
  • An example is more particularly described by the document EP 0 906 480 .
  • the polypropylene core extends between two metal sheets of aluminum or aluminum alloy, to reinforce the rigidity of the composite assembly.
  • the formwork panel is intended to be attached to a sheet metal or plastic frame, where a mannequin, corresponding for example to a door or a window, is held in position relative to the frame by nailed or screwed wedges. on the panel.
  • the two metal sheets are each covered with a polypropylene topcoat, opposite the non-metallic core.
  • these finishing layers in which nails or screws have left imprints, are abraded and replaced with a new layer to provide a clean formwork face. This operation is in particular described in the document EP 1 984 167 .
  • One of the aims of the present invention is to modify this prior art, from the angle of repackaging.
  • the subject of the invention is a composite formwork panel, intended to be attached to a formwork frame to serve as a formwork face and to support wedges, capable of maintaining a mannequin, a reservation or an anchor, in a determined position relative to the frame, comprising a non-metallic core and a metal sheet, characterized in that the metal sheet is magnetic and the wedges are magnetized to interact with said sheet.
  • the magnetic metal sheets allow the formwork panel to support the magnetic wedges and hold the dummy, reservation or anchor, in position relative to the formwork frame, without damaging the formwork face.
  • Magnetic metal foil can be left bare or covered a finishing layer of thermoplastic material, to facilitate interaction with the concrete.
  • the invention extends to a formwork comprising a frame and a composite formwork panel, attached to the frame to serve as a formwork face and support wedges, capable of maintaining a dummy, a reservation or an anchor, in a determined position relative to the frame, said panel comprising a non-metallic core and a metal sheet, characterized in that the metal sheet is magnetic and the wedges are magnetized to interact with said sheet.
  • a composite formwork panel comprises a non-metallic core 1 and a metal sheet 2.
  • the non-metallic core is rigid and preferably made of polypropylene with a so-called foamed, honeycomb or cellular plate structure. It can also be made of expanded polyvinyl chloride or even of polyethylene terephthalate with a so-called foamed structure.
  • a metal sheet 2 preferably extends over two opposite faces 1a, 1b of the metal core 1, to reinforce the rigidity of the composite assembly thus formed.
  • the formwork panel is intended to be attached to a formwork frame to serve as a formwork face and to support wedges, capable of maintaining a dummy, a reservation or an anchor, in a determined position relative to the frame.
  • the metal sheet 2 is magnetic to interact with magnetic wedges.
  • each metal sheet 2 is a sheet of magnetic, ferritic or martensitic steel, having a thickness of between 0.1 mm and 2.5 mm. More preferably, the thickness is between 0.1 mm and 1.0 mm, to offer a good compromise between the contact force of the magnetic wedges on the one hand and the possibility on the other hand of cutting the panel composite formwork on demand, for example by sawing it.
  • the steel sheet may have a deployed, dented, brushed or perforated shape to increase the homogeneity of the composite formwork panel and the absorption by the formwork frame of the sliding and shearing forces to which said panel is subjected. At equal thickness, the rigidity of the formwork panel with steel sheets is approximately three times higher than that with aluminum sheets.
  • the formwork face can be formed by the bare magnetic metal sheet 2 or by a finishing layer 3 of preferably thermoplastic material and covering said sheet. Finishing layer 3 ensures better release from the formwork face, while protecting the steel sheet during repeated use.
  • a coating 4 containing different additives can be provided to protect the formwork face against impacts, ultraviolet rays or even against oils used to facilitate the operation of unmoulding the formwork.
  • two formworks 5, 7 assembled to one another each comprise a frame 9, 11, metallic or plastic and a composite formwork panel 13, attached to the frames 9, 11 for example by screwing on the face opposite the formwork face, or even by screwing or riveting on the formwork face, unless reconstitution of the finishing layer.
  • the composite formwork panel 13 can be glued to the formwork frame 9, 11, in particular using a glue with nanometric and magnetic particles, by means of which the adhesion of the glue can be deactivated by exposing the particles to electromagnetic waves. This type of bonding allows the composite formwork panel to be assembled and dismantled without screws or rivets, more quickly and without damage.
  • These formwork panels 13 serve as formwork faces and support wedges 15, capable of maintaining a mannequin, for example a door mannequin 17 or a window mannequin 19, in a determined position relative to the frame 9, 11.
  • the force contact of the wedges on the formwork panel depends on the thickness of the magnetic metal sheets and is adjusted, for a given thickness, by means of the magnetization and the contact surface of the wedge.
  • the wedges 15 are used for all types of mannequins, reservations, in particular for electrical or sanitary boxes, or anchors.
  • the formwork panel will comprise a flexible non-metallic core and two magnetic metal sheets with a thickness of between 0.1 mm and 0.5 mm to form a composite assembly capable of being packaged in a roll.
  • This embodiment is particularly advantageous in the case where the formwork frame is of non-planar shape.
  • the formwork panel according to the invention is preferably manufactured by a process of injection of the non-metallic core, extrusion of the finishing layers and the coating and bonding of the magnetic metal sheets under controlled pressure and temperature. When it needs to be recycled, it is crushed and the steel filings are recovered by magnetization.
  • the invention is primarily intended for concrete construction but extends to earthen structures.

Abstract

Panneau de coffrage composite, destiné à être rapporté sur un cadre (9, 11) de banche (5, 7) pour servir de face de coffrage et soutenir des cales (15), aptes à maintenir un mannequin (17, 19), une réservation ou un ancrage, dans une position déterminée par rapport au cadre, ledit panneau comprenant une âme non métallique (1) et une feuille métallique (2).Selon l'invention, la feuille métallique (2) est magnétique et les cales (15) sont aimantées pour interagir avec ladite feuille (2). La feuille métallique (2) est de préférence en acier magnétique et possède une épaisseur comprise entre 0,1 mm et 2,5 mm, de préférence entre 0,1 mm et 1,0 mm. L'âme non métallique peut être souple tandis que l'épaisseur de la feuille métallique magnétique (2) est comprise entre 0,1 mm et 0,5 mm pour permettre au panneau de coffrage composite d'être conditionné en rouleau.Composite formwork panel, intended to be attached to a frame (9, 11) of formwork (5, 7) to serve as a formwork face and support wedges (15), capable of holding a mannequin (17, 19), a reservation or anchoring, in a determined position relative to the frame, said panel comprising a non-metallic core (1) and a metal sheet (2). According to the invention, the metal sheet (2) is magnetic and the wedges (15 ) are magnetized to interact with said sheet (2). The metal sheet (2) is preferably made of magnetic steel and has a thickness of between 0.1 mm and 2.5 mm, preferably between 0.1 mm and 1.0 mm. The non-metallic core can be flexible while the thickness of the magnetic metal sheet (2) is between 0.1 mm and 0.5 mm to allow the composite formwork panel to be packaged in a roll.

Description

DescriptionDescription

L'invention se rapporte à un panneau de coffrage composite, destiné à être rapporté sur un cadre de banche pour servir de face de coffrage et soutenir des cales, aptes à maintenir un mannequin, une réservation ou un ancrage, dans une position déterminée par rapport au cadre, ledit panneau comprenant une âme non métallique et une feuille métallique.The invention relates to a composite formwork panel, intended to be attached to a formwork frame to serve as a formwork face and support wedges, capable of maintaining a dummy, a reservation or an anchor, in a position determined in relation to to the frame, said panel comprising a non-metallic core and a metal sheet.

Un panneau de coffrage de ce type est utilisé dans le domaine de la construction en béton. La feuille métallique augmente la rigidité du panneau et permet d'utiliser un matériau de résistance moindre et plus léger pour l'âme centrale. Un exemple est plus particulièrement décrit par le document EP 0 906 480 . L'âme en polypropylène s'étend entre deux feuilles métalliques en aluminium ou en alliage d'aluminium, pour renforcer la rigidité de l'ensemble composite. Le panneau de coffrage est destiné à être rapporté sur un cadre de banche, métallique ou en matière plastique, où un mannequin, correspondant par exemple à une porte ou à une fenêtre, est maintenu en position par rapport au cadre par des cales clouées ou vissées sur le panneau.A formwork panel of this type is used in the field of concrete construction. The metal sheet increases the rigidity of the panel and allows the use of a lower resistance and lighter material for the central core. An example is more particularly described by the document EP 0 906 480 . The polypropylene core extends between two metal sheets of aluminum or aluminum alloy, to reinforce the rigidity of the composite assembly. The formwork panel is intended to be attached to a sheet metal or plastic frame, where a mannequin, corresponding for example to a door or a window, is held in position relative to the frame by nailed or screwed wedges. on the panel.

Dans cet exemple, les deux feuilles métalliques sont chacune recouvertes d'une couche de finition en polypropylène, opposées à l'âme non métallique. Lors du reconditionnement, ces couches de finition, dans lesquelles les clous ou les vis ont laissé des empreintes, sont abrasées et remplacées par une nouvelle couche pour offrir une face de coffrage propre. Cette opération est en particulier décrite dans le document EP 1 984 167 .In this example, the two metal sheets are each covered with a polypropylene topcoat, opposite the non-metallic core. During reconditioning, these finishing layers, in which nails or screws have left imprints, are abraded and replaced with a new layer to provide a clean formwork face. This operation is in particular described in the document EP 1 984 167 .

L'un des buts de la présente invention est de modifier cet art antérieur, sous l'angle du reconditionnement.One of the aims of the present invention is to modify this prior art, from the angle of repackaging.

A cet effet, l'invention a pour objet un panneau de coffrage composite, destiné à être rapporté sur un cadre de banche pour servir de face de coffrage et pour soutenir des cales, aptes à maintenir un mannequin, une réservation ou un ancrage, dans une position déterminée par rapport au cadre, comprenant une âme non métallique et une feuille métallique, caractérisé en ce que la feuille métallique est magnétique et les cales sont aimantées pour interagir avec ladite feuille.For this purpose, the subject of the invention is a composite formwork panel, intended to be attached to a formwork frame to serve as a formwork face and to support wedges, capable of maintaining a mannequin, a reservation or an anchor, in a determined position relative to the frame, comprising a non-metallic core and a metal sheet, characterized in that the metal sheet is magnetic and the wedges are magnetized to interact with said sheet.

Les feuilles métalliques magnétiques permettent au panneau de coffrage de soutenir les cales aimantées et de maintenir le mannequin, la réservation ou l'ancrage, en position par rapport au cadre de banche, sans endommager la face de coffrage. La feuille métallique magnétique peut être laissée nue ou recouverte d'une couche de finition en matière thermoplastique, pour faciliter l'interaction avec le béton.The magnetic metal sheets allow the formwork panel to support the magnetic wedges and hold the dummy, reservation or anchor, in position relative to the formwork frame, without damaging the formwork face. Magnetic metal foil can be left bare or covered a finishing layer of thermoplastic material, to facilitate interaction with the concrete.

L'invention s'étend à une banche comprenant un cadre et un panneau de coffrage composite, rapporté sur le cadre pour servir de face de coffrage et soutenir des cales, aptes à maintenir un mannequin, une réservation ou un ancrage, dans une position déterminée par rapport au cadre, ledit panneau comprenant une âme non métallique et une feuille métallique, caractérisée en ce que la feuille métallique est magnétique et les cales sont aimantées pour interagir avec ladite feuille.The invention extends to a formwork comprising a frame and a composite formwork panel, attached to the frame to serve as a formwork face and support wedges, capable of maintaining a dummy, a reservation or an anchor, in a determined position relative to the frame, said panel comprising a non-metallic core and a metal sheet, characterized in that the metal sheet is magnetic and the wedges are magnetized to interact with said sheet.

D'autres avantages de l'invention sont décrits dans l'exposé ci-dessous illustré par les dessins suivants :

  • [Fig. 1] est une vue en coupe transversale d'un exemple de réalisation d'un panneau de coffrage composite selon l'invention.
  • [Fig. 2] est une vue en face arrière de deux banches sur les cadres desquelles des panneaux de coffrage selon l'exemple de la figure 1 sont rapportés.
  • [Fig. 3] est une vue en face avant des deux banches, montrant un mannequin de porte et un mannequin de fenêtre, maintenus en position par rapport au cadre des banches par des cales aimantées.
  • [Fig. 4] est une vue de côté de la figure 3, montrant le mannequin de porte, maintenu en position par rapport au cadre d'une des deux banches par des cales aimantées.
Other advantages of the invention are described in the presentation below illustrated by the following drawings:
  • [ Fig. 1 ] is a cross-sectional view of an exemplary embodiment of a composite formwork panel according to the invention.
  • [ Fig. 2 ] is a rear view of two formworks on the frames of which formwork panels according to the example of the figure 1 are reported.
  • [ Fig. 3 ] is a front view of the two formworks, showing a door dummy and a window dummy, held in position relative to the frame of the formworks by magnetic wedges.
  • [ Fig. 4 ] is a side view of the Figure 3 , showing the door dummy, held in position relative to the frame of one of the two formworks by magnetic wedges.

En référence à la figure 1, un panneau de coffrage composite comprend, une âme non métallique 1 et une feuille métallique 2.In reference to the figure 1 , a composite formwork panel comprises a non-metallic core 1 and a metal sheet 2.

L'âme non métallique est rigide et de préférence en polypropylène à structure dite moussée, en nid d'abeille ou en plaque alvéolaire. Elle peut aussi être en polychlorure de vinyle expansé ou encore en polyéthylène téréphtalate à structure dite moussée. Une feuille métallique 2 s'étend, de préférence, sur deux faces opposées 1a, 1b de l'âme métallique 1, pour renforcer la rigidité de l'ensemble composite ainsi constitué.The non-metallic core is rigid and preferably made of polypropylene with a so-called foamed, honeycomb or cellular plate structure. It can also be made of expanded polyvinyl chloride or even of polyethylene terephthalate with a so-called foamed structure. A metal sheet 2 preferably extends over two opposite faces 1a, 1b of the metal core 1, to reinforce the rigidity of the composite assembly thus formed.

Le panneau de coffrage est destiné à être rapporté sur un cadre de banche pour servir de face de coffrage et pour soutenir des cales, aptes à maintenir un mannequin, une réservation ou un ancrage, dans une position déterminée par rapport au cadre.The formwork panel is intended to be attached to a formwork frame to serve as a formwork face and to support wedges, capable of maintaining a dummy, a reservation or an anchor, in a determined position relative to the frame.

Selon l'invention, la feuille métallique 2 est magnétique pour interagir avec des cales aimantées.According to the invention, the metal sheet 2 is magnetic to interact with magnetic wedges.

De préférence, chaque feuille métallique 2 est une feuille d'acier magnétique, ferritique ou martensitique, ayant une épaisseur comprise entre 0,1 mm et 2,5 mm. De préférence encore, l'épaisseur est comprise entre 0,1 mm et 1,0 mm, pour offrir un bon compromis entre la force de contact des cales aimantées d'une part et la possibilité d'autre part, de découper le panneau de coffrage composite à la demande, par exemple en le sciant. La feuille d'acier peut avoir une forme déployée, bosselée, brossée ou trouée pour augmenter l'homogénéité du panneau de coffrage composite et la reprise par le cadre de la banche, des efforts de glissement et de cisaillement auxquels ledit panneau est soumis. A épaisseur égale, la rigidité du panneau de coffrage avec des feuilles d'acier est environ trois fois plus élevée que celle avec des feuilles d'aluminium.Preferably, each metal sheet 2 is a sheet of magnetic, ferritic or martensitic steel, having a thickness of between 0.1 mm and 2.5 mm. More preferably, the thickness is between 0.1 mm and 1.0 mm, to offer a good compromise between the contact force of the magnetic wedges on the one hand and the possibility on the other hand of cutting the panel composite formwork on demand, for example by sawing it. The steel sheet may have a deployed, dented, brushed or perforated shape to increase the homogeneity of the composite formwork panel and the absorption by the formwork frame of the sliding and shearing forces to which said panel is subjected. At equal thickness, the rigidity of the formwork panel with steel sheets is approximately three times higher than that with aluminum sheets.

La face de coffrage peut être formée par la feuille métallique magnétique 2 nue ou par une couche de finition 3 en matériau thermoplastique de préférence et recouvrant ladite feuille. La couche de finition 3 assure un meilleur démoulage de la face de coffrage, tout en protégeant la feuille d'acier au cours d'utilisations répétées.The formwork face can be formed by the bare magnetic metal sheet 2 or by a finishing layer 3 of preferably thermoplastic material and covering said sheet. Finishing layer 3 ensures better release from the formwork face, while protecting the steel sheet during repeated use.

Un revêtement 4 contenant différents additifs, comme des fibres de verre ou de bakélite, peut être prévu pour protéger la face de coffrage contre les chocs, les rayons ultra-violets ou encore contre les huiles utilisées pour faciliter l'opération de démoulage des banches.A coating 4 containing different additives, such as glass or bakelite fibers, can be provided to protect the formwork face against impacts, ultraviolet rays or even against oils used to facilitate the operation of unmoulding the formwork.

En référence aux figures 2 à 4, deux banches 5, 7 assemblées l'une à l'autre, comprennent chacune un cadre 9, 11, métallique ou en matière plastique et un panneau de coffrage composite 13, rapporté sur les cadres 9, 11 par exemple par vissage sur la face opposée à la face de coffrage, voire par vissage ou rivetage sur la face de coffrage, sauf reconstitution de la couche de finition. D'une façon avantageuse, le panneau de coffrage composite 13 peut être collé sur le cadre 9, 11 de banche, notamment à l'aide d'une colle à particules nanométriques et magnétiques, au moyen desquelles l'adhérence de la colle peut être désactivée en exposant les particules à des ondes électromagnétiques. Ce type de collage permet de monter et de démonter le panneau de coffrage composite sans vis ni rivets, plus rapidement et sans dégradation.With reference to figures 2 to 4 , two formworks 5, 7 assembled to one another, each comprise a frame 9, 11, metallic or plastic and a composite formwork panel 13, attached to the frames 9, 11 for example by screwing on the face opposite the formwork face, or even by screwing or riveting on the formwork face, unless reconstitution of the finishing layer. Advantageously, the composite formwork panel 13 can be glued to the formwork frame 9, 11, in particular using a glue with nanometric and magnetic particles, by means of which the adhesion of the glue can be deactivated by exposing the particles to electromagnetic waves. This type of bonding allows the composite formwork panel to be assembled and dismantled without screws or rivets, more quickly and without damage.

Ces panneaux de coffrage 13 servent de face de coffrage et soutiennent des cales 15, aptes à maintenir un mannequin, par exemple un mannequin de porte 17 ou un mannequin de fenêtre 19, dans une position déterminée par rapport au cadre 9, 11. La force de contact des cales sur le panneau de coffrage dépend de l'épaisseur des feuilles métalliques magnétiques et est ajustée, pour une épaisseur donnée, au moyen de l'aimantation et de la surface de contact de la cale. A noter que les cales 15 servent à tout type de mannequins, de réservations, notamment pour les boîtiers électriques ou sanitaires, ou d'ancrages.These formwork panels 13 serve as formwork faces and support wedges 15, capable of maintaining a mannequin, for example a door mannequin 17 or a window mannequin 19, in a determined position relative to the frame 9, 11. The force contact of the wedges on the formwork panel depends on the thickness of the magnetic metal sheets and is adjusted, for a given thickness, by means of the magnetization and the contact surface of the wedge. Note that the wedges 15 are used for all types of mannequins, reservations, in particular for electrical or sanitary boxes, or anchors.

A titre indicatif, un panneau de coffrage selon l'invention comprendra :

  • une âme en polypropylène de 15 mm d'épaisseur
  • deux feuilles d'acier de 0,5 mm d'épaisseur, collées sur deux faces opposées de l'âme en polypropylène,
  • deux couches de finition en polypropylène de 1 mm d'épaisseur, collées sur les deux feuilles d'acier, et
  • un film de revêtement en polypropylène de 0,5 mm d'épaisseur, extrudé sur chaque couche de finition.
As an indication, a formwork panel according to the invention will include:
  • a 15 mm thick polypropylene core
  • two sheets of steel 0.5 mm thick, glued to two opposite sides of the polypropylene core,
  • two finishing layers of polypropylene 1 mm thick, glued to the two steel sheets, and
  • a 0.5mm thick polypropylene covering film, extruded onto each finishing layer.

Dans un mode particulier de réalisation, le panneau de coffrage comprendra une âme non métallique souple et deux feuilles métalliques magnétiques d'épaisseur comprise entre 0,1 mm et 0,5 mm pour former un ensemble composite apte à être conditionné en rouleau. Ce mode de réalisation est particulièrement avantageux dans le cas où le cadre de banche est de forme non plane.In a particular embodiment, the formwork panel will comprise a flexible non-metallic core and two magnetic metal sheets with a thickness of between 0.1 mm and 0.5 mm to form a composite assembly capable of being packaged in a roll. This embodiment is particularly advantageous in the case where the formwork frame is of non-planar shape.

Le panneau de coffrage selon l'invention est fabriqué de préférence par un procédé d'injection de l'âme non métallique, d'extrusion des couches de finition et du revêtement et de collage des feuilles métalliques magnétiques sous pression et température contrôlées. Lorsqu'il doit être recyclé, il est broyé et la limaille d'acier est récupérée par aimantation.The formwork panel according to the invention is preferably manufactured by a process of injection of the non-metallic core, extrusion of the finishing layers and the coating and bonding of the magnetic metal sheets under controlled pressure and temperature. When it needs to be recycled, it is crushed and the steel filings are recovered by magnetization.

L'invention est en priorité destinée à la construction en béton mais s'étend aux structures en terre.The invention is primarily intended for concrete construction but extends to earthen structures.

Claims (5)

Panneau de coffrage composite, destiné à être rapporté sur un cadre (9, 11) de banche (5, 7) pour servir de face de coffrage et soutenir des cales (15), aptes à maintenir un mannequin (17, 19), une réservation ou un ancrage, dans une position déterminée par rapport au cadre, ledit panneau comprenant une âme non métallique (1) et une feuille métallique (2), caractérisé en ce que la feuille métallique (2) est magnétique et les cales (15) sont aimantées pour interagir avec ladite feuille (2).Composite formwork panel, intended to be attached to a frame (9, 11) of formwork (5, 7) to serve as a formwork face and support wedges (15), capable of holding a mannequin (17, 19), a reservation or anchoring, in a determined position relative to the frame, said panel comprising a non-metallic core (1) and a metal sheet (2), characterized in that the metal sheet (2) is magnetic and the wedges (15) are magnetized to interact with said sheet (2). Panneau de coffrage composite selon la revendication 1, caractérisé en ce que la feuille métallique (2) est en acier magnétique et possède une épaisseur comprise entre 0,1 mm et 2,5 mm.Composite formwork panel according to claim 1, characterized in that the metal sheet (2) is made of magnetic steel and has a thickness of between 0.1 mm and 2.5 mm. Panneau de coffrage composite selon la revendication 1, caractérisé en ce que la feuille métallique (2) est en acier magnétique et possède une épaisseur comprise entre 0,1 mm et 1,0 mm.Composite formwork panel according to claim 1, characterized in that the metal sheet (2) is made of magnetic steel and has a thickness of between 0.1 mm and 1.0 mm. Panneau de coffrage composite selon la revendication 1, caractérisé en ce que la feuille métallique (2) est en acier magnétique et possède une épaisseur comprise entre 0,1 mm et 0,5 mm.Composite formwork panel according to claim 1, characterized in that the metal sheet (2) is made of magnetic steel and has a thickness of between 0.1 mm and 0.5 mm. Banche (5, 7) comprenant un cadre (9, 11) et un panneau de coffrage composite (13), rapporté sur le cadre (9, 11) pour servir de face de coffrage et soutenir des cales (15), aptes à maintenir un mannequin (17, 19), une réservation ou un ancrage, dans une position déterminée par rapport au cadre (9, 11), ledit panneau (13) comprenant une âme non métallique (1) et une feuille métallique (2), caractérisée en ce que la feuille métallique (2) est magnétique et les cales (15) sont aimantées pour interagir avec ladite feuille (2).Form (5, 7) comprising a frame (9, 11) and a composite formwork panel (13), attached to the frame (9, 11) to serve as a formwork face and support wedges (15), capable of holding a mannequin (17, 19), a reservation or an anchor, in a determined position relative to the frame (9, 11), said panel (13) comprising a non-metallic core (1) and a metal sheet (2), characterized in that the metal sheet (2) is magnetic and the wedges (15) are magnetized to interact with said sheet (2).
EP23183472.2A 2022-07-08 2023-07-04 Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet Pending EP4303379A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2207052A FR3137698A1 (en) 2022-07-08 2022-07-08 Construction element in sandwich structure
FR2306329A FR3137699A1 (en) 2022-07-08 2023-06-20 Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet

Publications (1)

Publication Number Publication Date
EP4303379A1 true EP4303379A1 (en) 2024-01-10

Family

ID=87136430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23183472.2A Pending EP4303379A1 (en) 2022-07-08 2023-07-04 Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet

Country Status (1)

Country Link
EP (1) EP4303379A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318292A2 (en) * 1975-07-17 1977-02-11 Caplat Sylvain Convex foam cored cladding for casting concrete - to compensate for panel flexure to produce flat cast faces
EP0906480A1 (en) 1996-06-22 1999-04-07 Gerhard Dingler Structural member
US20030096072A1 (en) * 2001-11-21 2003-05-22 Johnson Gregory D. Concrete formworks and method of making same
EP1984167A1 (en) 2006-02-13 2008-10-29 Alkus GmbH & Co. KG Method of repairing the surface of a formwork panel
US20080307729A1 (en) * 2007-04-17 2008-12-18 Maxam Industries Inc. Structural panels
EP2211000A1 (en) * 2009-01-21 2010-07-28 Sateco Form panel for formworking a concrete wall
FR2989402A1 (en) * 2012-04-13 2013-10-18 Sateco Sa Formwork panel for forming walls or shear walls of building, has single-piece rectangular rigidification module connected to rear face of flat formwork sheet, and main stiffeners aligned horizontally and/or vertically

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2318292A2 (en) * 1975-07-17 1977-02-11 Caplat Sylvain Convex foam cored cladding for casting concrete - to compensate for panel flexure to produce flat cast faces
EP0906480A1 (en) 1996-06-22 1999-04-07 Gerhard Dingler Structural member
US20030096072A1 (en) * 2001-11-21 2003-05-22 Johnson Gregory D. Concrete formworks and method of making same
EP1984167A1 (en) 2006-02-13 2008-10-29 Alkus GmbH & Co. KG Method of repairing the surface of a formwork panel
US20080307729A1 (en) * 2007-04-17 2008-12-18 Maxam Industries Inc. Structural panels
EP2211000A1 (en) * 2009-01-21 2010-07-28 Sateco Form panel for formworking a concrete wall
FR2989402A1 (en) * 2012-04-13 2013-10-18 Sateco Sa Formwork panel for forming walls or shear walls of building, has single-piece rectangular rigidification module connected to rear face of flat formwork sheet, and main stiffeners aligned horizontally and/or vertically

Similar Documents

Publication Publication Date Title
EP2268474B1 (en) Curved structural part made of composite material and method of manufacturing such a part
EP3186126B1 (en) Sealing system for an openable panel comprising a profile member receiving a seal locked by a sliding key
EP4303379A1 (en) Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet
FR3137699A1 (en) Composite formwork panel, comprising a non-metallic core and a magnetic metal sheet
EP2123147A1 (en) Device for fixing flexible material covering a greenhouse
WO1997038921A1 (en) Wall or casing made of metal sheets stretched over a frame or structure, and construction procedure
FR2591971A1 (en) SEALING, FINISHING OR GUIDING TAPE FOR VEHICLE BODYWORK, ESPECIALLY FOR AUTOMOBILE DOOR OR WINDOW FRAMING
FR2822179A1 (en) Device for mounting wall facings comprises a first portion with a threaded hole and a second portion that can be rotated to adjust the gap between wall and facing
FR2912445A1 (en) Extruded section for ceramic lining to outer edges of wall, has wings supported on support in masonry in correspondence with angle between walls and covered by lateral end of tiles, where wings have length equal to that of walls
FR2760983A1 (en) Folding of sandwich composites comprising thin steel or aluminium@ facings on rigid plastic core
EP1743986A2 (en) Multi walled panel
FR3068058B1 (en) DEVICE FOR RENOVATING A WALL SURFACE BY COVERING
Navidirad et al. Investigation on the strain induced oxide layer fracture and bonding during cold rolling of aluminum alloys
FR2770448A1 (en) Composite metal and plastic panel, used in buildings and signs
FR2631582A1 (en) Prefabricated rigid composite panels, their method of manufacture and their applications
FR2877876A1 (en) Supple composition material, e.g. for covering vehicle loads, has knitted reinforcing layer, preferably of metal wire, embedded in thermofusible matrix
FR3060623A1 (en) FIXING BOLT FOR AN INSULATING PANEL
FR3043121A1 (en) DORMANT FOR SLIDING OPENING WITH AT LEAST ONE THERMAL SHIELD
EP3971425A1 (en) Method for mounting a panel to a technical profile for forming an element of the inside of a public transport vehicle
FR3097491A3 (en) Edge protection device
FR3023572A1 (en) SYSTEM FOR PROTECTION AGAINST THE DELETION OF CLOSURE ELEMENTS, COMPRISING A RESISTANT BAR SUBJECTED TO AXIAL PRESSURE
EP2857795B1 (en) Method and standalone device for assisting with the implementation, installation, attachment and adjustment of the orientation of tubular profile members and use
WO2022219291A1 (en) Glazing unit comprising a profiled bead with a foaming agent and comprising a glued cover piece, as well as a method for manufacturing this glazing unit
FR3135659A1 (en) GLAZING COMPRISING SEVERAL PROFILE JOINTS, PROFILE JOINT AND METHOD FOR MANUFACTURING SUCH GLAZING
FR2732707A1 (en) Wooden form to create openings for doors and windows in concrete screens or walls

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR