EP3085854A1 - Formwork device for manufacturing a shuttered-wall strut, connection member, lost formwork element and magnet of said formwork device and manufacturing method using same - Google Patents

Formwork device for manufacturing a shuttered-wall strut, connection member, lost formwork element and magnet of said formwork device and manufacturing method using same Download PDF

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Publication number
EP3085854A1
EP3085854A1 EP16159571.5A EP16159571A EP3085854A1 EP 3085854 A1 EP3085854 A1 EP 3085854A1 EP 16159571 A EP16159571 A EP 16159571A EP 3085854 A1 EP3085854 A1 EP 3085854A1
Authority
EP
European Patent Office
Prior art keywords
magnet
grid
wall
shuttering
formwork
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.)
Withdrawn
Application number
EP16159571.5A
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German (de)
French (fr)
Inventor
Laurent Abric
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KP1 SAS
Original Assignee
KP1 SAS
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Filing date
Publication date
Application filed by KP1 SAS filed Critical KP1 SAS
Publication of EP3085854A1 publication Critical patent/EP3085854A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/324—Floor structures wholly cast in situ with or without form units or reinforcements with peripheral anchors or supports
    • 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

Definitions

  • the present invention relates to the building and construction and more particularly to a formwork device for the manufacture of a banché wall spoiler.
  • the invention also relates to a connection member of said formwork device, a formwork element lost from said formwork device, a magnet of said formwork device and a method of manufacturing a walled spoiler with the help of such a formwork device.
  • a wall is mounted until the desired level of a floor is reached and then the floor is manufactured before continuing the manufacture of the wall.
  • demarcations between floors and wall portions are often visible from the outside of the building.
  • differences in colors or textures and concrete run-off are generally present at the interface between a floor and the two portions of walls flanking it.
  • these demarcations can also hinder the application of a coating applied to the exterior facade of the wall.
  • Such a formwork element is in the form of a concrete plate associated with magnets that allow to secure the concrete plate to an inner face of the outer wall forming the wall.
  • the lower portion of the concrete plate is embedded in the wall portion thus formed.
  • the boards and magnets are then removed so that the concrete slab thus directly forms the edge of the floor. So, once the floor is built, the demarcation between the wall and the floor is less visible from the outside.
  • An object of the invention is to provide a formwork device to further limit the demarcation between a floor and the associated wall.
  • An object of the invention is also to provide a connection member, a lost formwork element and a magnet of such a formwork device and a method of manufacturing a spoiler of a walled wall manufactured at the using such a device.
  • the device thus allows to form a spoiler in the extension of the wall and at the same time as the wall and in the same material as the wall so that the spoiler is a bank for the future floor.
  • the demarcation between the floor and the portions of walls surrounding it is not very visible or invisible. There will indeed be no difference in colors or textures on an outer face of the wall and little or no sagging.
  • the grid allows a very good recovery of concrete between the wall, the spoiler and the floor.
  • the device according to the invention limits the risk of forming a demarcation between the wall and the floor but also participates in the connection between the wall and the floor.
  • the grid makes it possible to have a relatively light formwork element.
  • the presence of the grid facilitates the manufacturing process of the formwork element because the grid is flexible and easily conformable in the desired position.
  • connection member facilitates the fastening of the shuttering element to the magnet.
  • the grid facilitates the manufacture of the spoiler and the corresponding walled wall. Indeed, it is relatively simple to cut directly on site the formwork element to adapt the length. In addition, it is conceivable to pass the various frames or accessories to be integrated in the wall and / or the floor through the lower part of the grid by manually drilling said grid directly using reinforcements / accessories without necessarily needing to creating holes dedicated to the passage of these frames and accessories in the lost formwork element.
  • the formwork element of the device according to the invention may also include such dedicated orifices.
  • connection member is shaped into a profile.
  • connection member comprises at least one orifice adapted to snap at least one stiffener of the grid for securing the shuttering element to the connection member.
  • the grid comprises stiffeners extending over the entire length of the formwork element.
  • connection member comprises at least one latching lug on the magnet.
  • the magnet comprises at least one lug and / or a notch for snapping the latching lug of the connecting member.
  • the latching lug is shaped so as to come into contact with the inner panel when the connection member is secured to the magnet and the magnet mounted on the inner panel.
  • the connecting member comprises in the lower part a housing for receiving a base element.
  • the device comprises the arase element.
  • the arase element is a magnet
  • connection member is made of plastic.
  • connection member is made of polypropylene.
  • the magnet comprises at least one registration mark.
  • the registration mark comprises a groove formed in the magnet.
  • the registration mark further comprises at least one numerical reference associated with the groove.
  • the invention also relates to an intermediate connection member of such a device adapted to be secured temporarily to a magnet to be magnetized on an inner wall to make a wall banché and able to be secured temporarily to an element. of lost formwork which comprises a grid.
  • the invention also relates to a lost formwork element of such a device comprising a grid.
  • the invention also relates to a magnet of such a device adapted to be secured temporarily to an intermediate connecting member for itself to to be secured temporarily to a lost formwork element.
  • the term "spoiler” is a protrusion of concrete which forms a projection of the upper face, along the outer longitudinal edge, of the wall portion already mounted so that an outer face of the spoiler is in continuity with the outer face of the wall portion which terminates at said outer longitudinal edge.
  • the term "means of their temporary connection” any means allowing a securing of the intermediate connection member to the magnet on the one hand and the intermediate connection member to the formwork element of other hand without an operator having to use a particular tool (for example by nesting, clipping, sliding, magnetization ).
  • outer box and “inner box” must be understood to mean respectively the form that is positioned outside the building under construction and the form that is positioned inside the building under construction.
  • the shuttering device 1 comprises a lost formwork element 2, an intermediate connection member 50 and a magnet 3, the lost formwork element 2 and the intermediate connection member 50 being provided with means of their temporary connection and the intermediate connection member 50 and the magnet 3 are also provided with means of their temporary connection.
  • the magnet 3 and the lost formwork element 2 are thus not directly secured to one another but are secured to one another by via the intermediate connection member 50.
  • the shuttering element 2 is here shaped so as to have a height substantially equal to that of the floor which will be constructed opposite said shuttering element 2 so that the shuttering element 2 allows the formation of a spoiler having an upper face. arriving at the level of the upper face of said floor.
  • the formwork element 2 extends here in a first direction X.
  • the shuttering element 2 comprises a grid 4 in one piece.
  • the grid 4 is here plastic and for example polypropylene.
  • the grid 4 has identical perforations homogeneously distributed over its entire surface with a perforation diameter of between 3 mm and 10 mm.
  • the grid 4 is here shaped so as to be very flexible. In particular, the grid 4 can be here rolled on itself by its intrinsic flexibility.
  • the gate 4 is flat when it is alone and not secured to the connection member 50.
  • the shuttering element 2 also comprises a plurality of stiffeners 17 each extending in the first direction X in the grid 4 and each being integral with said grid 4.
  • Each stiffener 17 is for example made of a metal-based material.
  • Each stiffener 17 is here in the form of a bar.
  • Each stiffener 17 extends over the entire length of the formwork element 2.
  • connection member 50 is here shaped into a profile.
  • the connection member 50 is thus flat.
  • the connection member 50 thus has a small thickness along the first axis X.
  • the connecting member 50 has two main faces connected by side flanks.
  • a first lateral flank 51 thus faces the shuttering element 2 and a second lateral flank 52, opposite to the first lateral flank 51, faces the magnet 3.
  • Said lateral flanks being connected superiorly by a third flank 53 and inferiorly by a fourth flank 54.
  • connection member 50 is for example plastic.
  • the connection member is for example polypropylene.
  • the first sidewall 51, the fourth sidewall 54 and the formwork element 2 comprise means of their temporary connection.
  • the stiffeners 17 of the shuttering element 2 form part of these means and the first flank 51 and the fourth flank 54 are provided with corresponding orifices 55 for the snap-fastening of the stiffeners 17 on the first flank 51 and the fourth flank 51.
  • flank 54, each orifice 55 being associated with one of the stiffeners 17.
  • the grid 4 being flexible, it can follow the successive snap-fastening of the stiffeners 17 on the connection member 50 so as to come to follow the shape of the succession of the first flank 51 and fourth flank 54. It is therefore noted that the stiffeners 17 play both a role of stiffening of the grid 4 and a role of attachment of the shuttering element 2 to the connection member 50.
  • the first sidewall 51 and the fourth sidewall 54 are shaped so that when the formwork element 2 is secured to the connection member 50, the formwork element 2 has a planar upper portion having a first main face so called formwork 6 and a second main face, opposite to the first main face, said non-formworking face 7 and having a lower portion 8 which is curved on the side of the non-formworked face 7 of the upper part.
  • the first flank 51 is here shaped in a straight flat portion and the fourth flank 54 is shaped as a straight flat portion which is however curved at its end attached to the first flank 51.
  • the stiffeners 17 and the orifices 55 are regularly distributed respectively along the shuttering element 2 and along the first sidewall 51 and the fourth sidewall 54.
  • the stiffeners 17 and the orifices 55 are here four in number.
  • connection member 50 extends over the entire length of the shuttering element 2
  • the position of the connection member 50 relative to the shuttering element 2 is not fixed. It is thus possible to adapt the position of the connection member 50 relative to the formwork element 2 which facilitates the mounting of the device 1 to a particular formwork when said device 1 must be cut on site to present the right dimensions.
  • connection member 50 and the magnet 3 are also provided with means for their temporary connection.
  • the second flank 52 is here provided in its lower portion with a first latching lug 56 which extends perpendicular to the second flank 53.
  • the third flank 53 is here also provided with a second leg latch 57.
  • Said second latching lug 57 has a securing portion 58 at the third flank 53 of the connecting member 50 so as to extend perpendicular to the third flank 53 and a detent portion 59 extending from the fastening portion 58 substantially perpendicularly to the fastening portion 58 towards the second flank 52.
  • the two tabs 56, 57 are here shaped so as to touch the inner panel when the connection member 50 is secured to the magnet 3.
  • flanks of the connection member 50 is secured temporarily to the shuttering element 2 and at least one other of the flanks of the connection member 50 is secured to the magnet 3.
  • the connecting member 50 comprises in the lower part a housing 60 of a base member 70.
  • the housing 60 extends for example between the first leg 56 and the fourth sidewall 54.
  • the housing 60 is typically a simple cut in the connection member 50.
  • connection member 50 whether or not part of the device 1
  • shuttering element 2 between the two panels, the housing 60 of the connection member 50 allowing the presence of the base member 70.
  • the base element 70 is here a magnet.
  • the base member 70 is here shaped into a simple bar extending along the first axis X.
  • the base element 70 would prevent the rise of the concrete to its level so that after removal of the panels, the magnet 3, the base member 70 and the connecting member 50, a planar arase will be present in the concrete poured at the level of the future floor which will facilitate the manufacture of said floor including the installation of building elements as predalles on the wall made.
  • the magnet 3 here comprises a block 22 having a first main face 23 planar to come to rest against a bandhe and a second main face 24 flat, opposite the first main face 23, and facing the body of connection 50.
  • the magnet 3 has a third tab 25 which is arranged in the upper part of the block 22 to snap into the second tab 57. More precisely here, the third tab 25 extends from the top of the block 22 and is inclined in the direction of the connection member 50 and comprises a finger 26 extending substantially perpendicular to the rest of the third tab 26 to snap into the second tab 57.
  • the magnet 3 and the connection member 50 are shaped so that when the finger 26 is snapped into the second tab 57, a lower face 28 of the third tab 25 rests against the third side 53 of the organ connection.
  • the lower face of the block 22 has a notch 27 in which the first leg 56 of the connecting member 55 snaps.
  • the magnet 3 can be temporarily secured to the connection member 50 in two zones: a high zone by the cooperation of the second leg 59 and the third leg 25 of the magnet 3 and the connection member 50 and a lower zone by the cooperation of the first leg 56 with the notch 27.
  • the device 1 comprises only one magnet 3.
  • the block 22 of the magnet 3 comprises alignment marks.
  • the magnet 3 has several grooves 30 at least at one of its lateral flanks connecting the two main faces 23, 24 of the block 22 of the magnet 3, with each groove 30 corresponding to a floor height referred.
  • a digital indication 31 of this height is associated with each of these grooves 30.
  • the two panels 40, 41 the base element 70 and the device 1 are mounted so that the device 1 is arranged between the two panels 40, 41 being carried, via the magnet 3, by the inner wall 41, the base member 70 being then at the housing 60 of the connecting member 50.
  • the device 1 has for example been reported unitarily on the inner wall 41 before mounting the outer wall 40 (without the base element 70, however) but the operator also has the possibility of first arranging the magnet 3 on the inner wall 41 before joining the connecting member 50 and the shuttering element 2 and to mount the outer panel 40.
  • the device 1 thus proves ergonomic since it offers different possibilities of mounting to the operator.
  • the operator therefore flows concrete until the concrete reaches the desired level (in particular thanks to the alignment marks of the magnet 3). Therefore with reference to the figure 3b once poured, the concrete forms on the one hand a wall portion 44 whose upper face comes to the arase of the future floor at least at the location of the base member 70 and secondly a spoiler 45 extending the wall to form a bank of said floor (being here a height substantially equal to the height of the future floor).
  • the device according to the invention can be associated with the manufacture of a banché wall spoiler connected to any type of floor whether it is a floor to floor, a floor with full slab ...
  • the formwork element has a height substantially equal to that of the floor
  • the formwork element may have a height greater than that of the floor so as to allow the formation of a spoiler of a height greater than that of the floor.
  • the spoiler will thus not only to form a bank of the floor but also to form a "heelette" is an additional growth of concrete protruding from the floor and facilitating the continuation of the construction of the wall.
  • the external visual appearance of the wall is further improved by further limiting the risk of run-off between the floor and the upper wall portion.
  • the formwork element and the connection member may be different from what has been described.
  • the lower part of the grid is curved so as to form a fillet with the upper part of the grid when the formwork element is mounted on the connection member, the lower part of the grid can be bent so as to extend at right angles to form a right angle with the upper part of the grid.
  • the grid may take a completely different form than that illustrated with holes of rectangular, square, circular, diamond ... The holes will however be relatively small with a diameter of between 3 mm and 10 mm for a good recovery concreting.
  • the grid may further comprise one or more reinforcement ribs of the grid passing discontinuously through the grid: this will stiffen the grid without however unduly hampering the resumption of concreting.
  • the grid may instead be in a more rigid material so as to be directly shaped to present a curved bottom portion of the side of a non-formwork face of the grid even when the grid n ' is not secured to the connection member.
  • the stiffeners will then only to secure connection member and grid and possibly further stiffen the grid.
  • the formwork element and the connection member may be secured to each other other than by the stiffeners of the grid.
  • the grid may be in a material other than what has been indicated and thus be, for example metal material that the grid is flexible or rigid.
  • connection member may optionally be hollowed in its center to make it lighter.
  • the device may include a grid in several portions instead of one piece.
  • the grid may be formed of two portions that will be mounted movable in translation relative to each other in the first direction X which will change the length of the formwork element.
  • the magnet may include means for interlocking with an adjacent magnet. In this way, when two devices are juxtaposed, the two magnets of these devices can fit into each other. This will limit a relative displacement between the two juxtaposed devices which will create a spoiler of better quality thereafter.
  • the magnet may comprise a base from which will extend several branches for attachment to the same connection member or to different connection members.
  • connection member may comprise means of their temporary connection (for example in the case where the connection member comprises as connecting member a metal part capable of being magnetized on the magnet).
  • connection member comprises as connecting member a metal part capable of being magnetized on the magnet.
  • formwork element or the connection member may include means for their temporary connection.
  • the fastening of the shuttering element to the magnet can be done on the one hand not only with the connection member but also directly between the shuttering element and the magnet (which will then comprise in addition means of their temporary connection with the connection member).
  • the device may comprise at least one additional connection member which will only temporarily be secured to the shuttering element (and not to a magnet). This will stiffen the formwork element and avoid especially its collapse during the pouring of concrete.
  • the device may comprise a larger number of magnets and / or connection members and / or formwork elements.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

L'invention concerne un dispositif de coffrage (1) pour la fabrication d'un becquet de mur banché comprenant un aimant (3), destiné à être aimanté sur une banche intérieure permettant de fabriquer le mur banché pour fixer le dispositif de coffrage à ladite banche intérieure, un élément de coffrage (2) perdu qui comporte une grille (4), un organe de connexion intermédiaire (50), l'organe de connexion intermédiaire étant indépendant de l'élément de coffrage perdu et de l'aimant, l'organe de connexion intermédiaire et l'aimant étant pourvus de moyens de leur liaison temporaire et l'organe de connexion intermédiaire et l'élément de coffrage étant pourvus de moyens de leur liaison temporaire de sorte que lorsque l'élément de coffrage est solidarisé à l'organe de connexion intermédiaire, une partie inférieure de la grille est recourbée du côté d'une face non coffrante de la grille.The invention relates to a shuttering device (1) for the manufacture of a banque wall spoiler comprising a magnet (3), intended to be magnetized on an inner wall to make the wall banché to fix the shuttering device to said internal partition, a formwork element (2) lost which comprises a grid (4), an intermediate connection member (50), the intermediate connection member being independent of the lost formwork element and the magnet, intermediate connecting member and the magnet being provided with means of their temporary connection and the intermediate connecting member and the formwork element being provided with means of their temporary connection so that when the formwork element is secured to the intermediate connection member, a lower portion of the grid is curved on the side of a non-formwork face of the grid.

Description

La présente invention concerne le bâtiment et la construction et plus particulièrement un dispositif de coffrage pour la fabrication d'un becquet de mur banché.The present invention relates to the building and construction and more particularly to a formwork device for the manufacture of a banché wall spoiler.

L'invention concerne également un organe de connexion dudit dispositif de coffrage, un élément de coffrage perdu dudit dispositif de coffrage, un aimant dudit dispositif de coffrage ainsi qu'un procédé de fabrication d'un becquet de mur banché à l'aide d'un tel dispositif de coffrage.The invention also relates to a connection member of said formwork device, a formwork element lost from said formwork device, a magnet of said formwork device and a method of manufacturing a walled spoiler with the help of such a formwork device.

ARRIERE-PLAN TECHNOLOGIQUE DE L'INVENTIONBACKGROUND OF THE INVENTION

Lors de la construction d'un bâtiment, on monte un mur jusqu'à atteindre le niveau voulu d'un plancher puis on fabrique ledit plancher avant de poursuivre la fabrication du mur. Toutefois, les démarcations entre les planchers et les portions de murs sont souvent visibles vues de l'extérieur du bâtiment. En particulier, des différences de couleurs ou de textures et des coulures de béton sont généralement présentes à l'interface entre un plancher et les deux portions de murs l'encadrant. En plus de leur aspect peu esthétique, ces démarcations peuvent également gêner la pose d'un enduit appliqué sur la façade extérieure du mur.During the construction of a building, a wall is mounted until the desired level of a floor is reached and then the floor is manufactured before continuing the manufacture of the wall. However, demarcations between floors and wall portions are often visible from the outside of the building. In particular, differences in colors or textures and concrete run-off are generally present at the interface between a floor and the two portions of walls flanking it. In addition to their unattractive appearance, these demarcations can also hinder the application of a coating applied to the exterior facade of the wall.

Pour pallier cet inconvénient, il est connu des éléments de coffrage perdus permettant la réalisation de rives pour la dalle de compression d'un plancher comme par exemple le système ASE MAGNET de la société Schöck. Un tel élément de coffrage se présente sous la forme d'une plaque en béton associée à des aimants qui permettent de solidariser la plaque en béton à une face interne de la banche extérieure permettant de former le mur. Lorsque l'on coule le béton jusqu'à l'arase, la portion inférieure de la plaque en béton se retrouve noyée dans la portion de mur ainsi formée. On retire alors banches et aimants de telle sorte que la plaque en béton forme ainsi directement la rive du plancher. Ainsi, une fois le plancher construit, la démarcation entre le mur et le plancher s'avère moins visible de l'extérieur.To overcome this drawback, it is known lost formwork elements for the realization of banks for the compression slab of a floor such as the system ASE MAGNET Schöck company. Such a formwork element is in the form of a concrete plate associated with magnets that allow to secure the concrete plate to an inner face of the outer wall forming the wall. When pouring the concrete to the base, the lower portion of the concrete plate is embedded in the wall portion thus formed. The boards and magnets are then removed so that the concrete slab thus directly forms the edge of the floor. So, once the floor is built, the demarcation between the wall and the floor is less visible from the outside.

Toutefois, la démarcation demeure malgré tout et la dépose de l'enduit peut s'en trouver encore gênée.However, the demarcation still remains and the removal of the coating may still be hampered.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Un but de l'invention est de proposer un dispositif de coffrage permettant de limiter encore davantage la démarcation entre un plancher et le mur associé. Un but de l'invention est également de proposer un organe de connexion, un élément de coffrage perdu ainsi qu'un aimant d'un tel dispositif de coffrage et un procédé de fabrication d'un becquet d'un mur banché fabriqué à l'aide d'un tel dispositif.An object of the invention is to provide a formwork device to further limit the demarcation between a floor and the associated wall. An object of the invention is also to provide a connection member, a lost formwork element and a magnet of such a formwork device and a method of manufacturing a spoiler of a walled wall manufactured at the using such a device.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

A cet effet, l'invention a pour objet un dispositif de coffrage pour la fabrication d'un becquet de mur banché comprenant :

  • un aimant, destiné à être aimanté sur une banche intérieure permettant de fabriquer le mur banché pour fixer le dispositif de coffrage à ladite banche intérieure,
  • un élément de coffrage perdu qui comporte une grille,
  • un organe de connexion intermédiaire, l'organe de connexion intermédiaire étant indépendant de l'élément de coffrage perdu et de l'aimant, l'organe de connexion intermédiaire et l'aimant étant pourvus de moyens de leur liaison temporaire et l'organe de connexion intermédiaire et l'élément de coffrage étant pourvus de moyens de leur liaison temporaire de sorte que lorsque l'élément de coffrage est solidarisé à l'organe de connexion intermédiaire, une partie inférieure de la grille est recourbée du côté d'une face non coffrante de la grille.
For this purpose, the subject of the invention is a formwork device for the manufacture of a recessed wall spoiler comprising:
  • a magnet, intended to be magnetized on an inner wall allowing the wall to be manufactured to fix the shuttering device to said inner wall,
  • a lost formwork element that has a grid,
  • an intermediate connection member, the intermediate connection member being independent of the lost formwork element and the magnet, the intermediate connection member and the magnet being provided with means for their temporary connection and the member of intermediate connection and the shuttering element being provided with means of their temporary connection so that when the shuttering element is secured to the intermediate connecting member, a lower portion of the grid is bent on the side of a non-rigid face. formwork of the grid.

Dès lors, une fois les banches du mur posées et le dispositif selon l'invention agencé sur une face interne de la banche intérieure, un opérateur vient couler du béton entre la banche extérieure et l'élément de coffrage jusqu'à ce que le béton atteigne le haut de l'élément de coffrage : le mur est ainsi formé jusqu'à sensiblement la partie inférieure de la grille et le becquet est ainsi formé dans le prolongement du mur contre la face coffrante de la grille.Therefore, once the walls of the wall laid and the device according to the invention arranged on an inner face from the inner wall, an operator pours concrete between the outer wall and the shuttering element until the concrete reaches the top of the shuttering element: the wall is thus formed up to substantially the lower part of the grid and the spoiler is thus formed in the extension of the wall against the formwork face of the grid.

Le dispositif permet donc de former un becquet dans le prolongement du mur et ce en même temps que le mur et dans le même matériau que le mur de telle sorte que le becquet constitue une rive pour le futur plancher. Ainsi, la démarcation entre le plancher et les portions de murs l'entourant s'avère peu visible voire invisible. Il n'y aura en effet pas de différence de couleurs ou de textures sur une face extérieure du mur et peu ou pas de coulures.The device thus allows to form a spoiler in the extension of the wall and at the same time as the wall and in the same material as the wall so that the spoiler is a bank for the future floor. Thus, the demarcation between the floor and the portions of walls surrounding it is not very visible or invisible. There will indeed be no difference in colors or textures on an outer face of the wall and little or no sagging.

De façon avantageuse, la grille permet une très bonne reprise de béton entre le mur, le becquet et le plancher. Ainsi, non seulement le dispositif selon l'invention limite le risque d'une formation d'une démarcation entre le mur et le plancher mais en outre participe à la solidarisation entre le mur et le plancher.Advantageously, the grid allows a very good recovery of concrete between the wall, the spoiler and the floor. Thus, not only the device according to the invention limits the risk of forming a demarcation between the wall and the floor but also participates in the connection between the wall and the floor.

Par ailleurs, la grille permet d'avoir un élément de coffrage relativement léger.In addition, the grid makes it possible to have a relatively light formwork element.

En outre, la présence de la grille facilite le procédé de fabrication de l'élément de coffrage du fait que la grille soit souple et aisément conformable dans la position souhaitée.In addition, the presence of the grid facilitates the manufacturing process of the formwork element because the grid is flexible and easily conformable in the desired position.

De plus la présence de l'organe de connexion facilite la solidarisation de l'élément de coffrage à l'aimant. En particulier, on peut ainsi poser d'abord l'aimant de façon précise avant d'y solidariser l'organe de connexion conjointement ou non avec l'élément de coffrage. Il s'avère donc plus simple d'agencer le dispositif sur la banche intérieure.In addition, the presence of the connection member facilitates the fastening of the shuttering element to the magnet. In particular, it is thus possible first to lay the magnet accurately before joining the connection member together or not with the element of formwork. It is therefore simpler to arrange the device on the inner wall.

De plus, la grille facilite la fabrication du becquet et du mur banché correspondant. En effet, il s'avère relativement simple de découper directement sur chantier l'élément de coffrage pour en adapter la longueur. De plus, il est envisageable de passer les différentes armatures ou accessoires devant être intégrés au mur et/ou au plancher à travers la partie inférieure de la grille en perçant manuellement ladite grille directement à l'aide des armatures/accessoires sans avoir nécessairement besoin de créer des orifices dédiés aux passages de ces armatures et accessoires dans l'élément de coffrage perdu. Bien entendu, selon un mode de réalisation particulier de l'invention, l'élément de coffrage du dispositif selon l'invention pourra également comporter de tels orifices dédiés.In addition, the grid facilitates the manufacture of the spoiler and the corresponding walled wall. Indeed, it is relatively simple to cut directly on site the formwork element to adapt the length. In addition, it is conceivable to pass the various frames or accessories to be integrated in the wall and / or the floor through the lower part of the grid by manually drilling said grid directly using reinforcements / accessories without necessarily needing to creating holes dedicated to the passage of these frames and accessories in the lost formwork element. Of course, according to a particular embodiment of the invention, the formwork element of the device according to the invention may also include such dedicated orifices.

Selon un mode de réalisation particulier, l'organe de connexion est conformé en un profilé.According to a particular embodiment, the connection member is shaped into a profile.

Selon un mode de réalisation particulier, l'organe de connexion comporte au moins un orifice apte à l'encliquetage d'au moins un raidisseur de la grille pour la solidarisation de l'élément de coffrage à l'organe de connexion.According to a particular embodiment, the connection member comprises at least one orifice adapted to snap at least one stiffener of the grid for securing the shuttering element to the connection member.

Selon un mode de réalisation particulier, la grille comporte des raidisseurs s'étendant sur toute la longueur de l'élément de coffrage.According to a particular embodiment, the grid comprises stiffeners extending over the entire length of the formwork element.

Selon un mode de réalisation particulier, l'organe de connexion comporte au moins une patte d'encliquetage sur l'aimant.According to a particular embodiment, the connection member comprises at least one latching lug on the magnet.

Selon un mode de réalisation particulier, l'aimant comporte au moins une patte et/ou une encoche pour l'encliquetage de la patte d'encliquetage de l'organe de connexion.According to a particular embodiment, the magnet comprises at least one lug and / or a notch for snapping the latching lug of the connecting member.

Selon un mode de réalisation particulier, la patte d'encliquetage est conformée de sorte à venir toucher la banche intérieure lorsque l'organe de connexion est solidarisé à l'aimant et l'aimant monté sur la banche intérieure.According to a particular embodiment, the latching lug is shaped so as to come into contact with the inner panel when the connection member is secured to the magnet and the magnet mounted on the inner panel.

Selon un mode de réalisation particulier, l'organe de connexion comporte en partie inférieure un logement destiné à recevoir un élément d'arase.According to a particular embodiment, the connecting member comprises in the lower part a housing for receiving a base element.

Selon un mode de réalisation particulier, le dispositif comporte l'élément d'arase.According to a particular embodiment, the device comprises the arase element.

Selon un mode de réalisation particulier, l'élément d'arase est un aimant.According to a particular embodiment, the arase element is a magnet.

Selon un mode de réalisation particulier, l'organe de connexion est en matière plastique.According to a particular embodiment, the connection member is made of plastic.

Selon un mode de réalisation particulier, l'organe de connexion est en polypropylène.According to a particular embodiment, the connection member is made of polypropylene.

Selon un mode de réalisation particulier, l'aimant comporte au moins un repère d'arasement.According to a particular embodiment, the magnet comprises at least one registration mark.

Selon un mode de réalisation particulier, le repère d'arasement comporte une rainure ménagée dans l'aimant.According to a particular embodiment, the registration mark comprises a groove formed in the magnet.

Selon un mode de réalisation particulier, le repère d'arasement comporte en outre au moins une référence numérique associée à la rainure.According to a particular embodiment, the registration mark further comprises at least one numerical reference associated with the groove.

L'invention concerne également un organe de connexion intermédiaire d'un tel dispositif apte à être solidarisé de façon temporaire à un aimant destiné à être aimanté sur une banche intérieure permettant de fabriquer un mur banché et apte à être solidarisé de façon temporaire à un élément de coffrage perdu qui comporte une grille.The invention also relates to an intermediate connection member of such a device adapted to be secured temporarily to a magnet to be magnetized on an inner wall to make a wall banché and able to be secured temporarily to an element. of lost formwork which comprises a grid.

L'invention concerne également un élément de coffrage perdu d'un tel dispositif comportant une grille.The invention also relates to a lost formwork element of such a device comprising a grid.

L'invention concerne également un aimant d'un tel dispositif apte à être solidarisé de façon temporaire à un organe de connexion intermédiaire destiné lui-même à être solidarisé de façon temporaire à un élément de coffrage perdu.The invention also relates to a magnet of such a device adapted to be secured temporarily to an intermediate connecting member for itself to to be secured temporarily to a lost formwork element.

L'invention concerne également un procédé de fabrication d'un becquet de mur banché à l'aide d'un tel dispositif comportant les étapes de :

  • agencer le dispositif sur une banche intérieure avant de positionner la banche extérieure,
  • couler du béton entre la banche extérieure et la face coffrante de la grille,
  • retirer les banches, l'organe de connexion et l'aimant du mur et du becquet ainsi formés.
The invention also relates to a method of manufacturing a walled spoiler with the aid of such a device comprising the steps of:
  • arrange the device on an inner wall before positioning the outer wall,
  • pouring concrete between the outer wall and the formwork side of the grid,
  • remove the panels, the connecting member and the magnet of the wall and spoiler thus formed.

Pour la présente invention, on appelle « becquet » une excroissance de béton qui forme une saillie de la face supérieure, le long du bord longitudinal extérieur, de la portion de mur déjà montée de sorte qu'une face extérieure du becquet soit en continuité avec la face extérieure de la portion de mur qui aboutit audit bord longitudinal extérieur.For the present invention, the term "spoiler" is a protrusion of concrete which forms a projection of the upper face, along the outer longitudinal edge, of the wall portion already mounted so that an outer face of the spoiler is in continuity with the outer face of the wall portion which terminates at said outer longitudinal edge.

Pour la présente invention, on appelle « moyens de leur liaison temporaire » tout moyen autorisant une solidarisation de l'organe de connexion intermédiaire à l'aimant d'une part et de l'organe de connexion intermédiaire à l'élément de coffrage d'autre part sans qu'un opérateur n'ait à utiliser un outil particulier (par exemple par emboîtement, par clipsage, par glissement, par aimantation ...).For the present invention, the term "means of their temporary connection" any means allowing a securing of the intermediate connection member to the magnet on the one hand and the intermediate connection member to the formwork element of other hand without an operator having to use a particular tool (for example by nesting, clipping, sliding, magnetization ...).

Bien entendu, les termes de « supérieur », « inférieur » ... doivent être entendus selon une position en service du dispositif de coffrage de l'invention soit une position dans laquelle le dispositif de coffrage repose entre les deux banches en étant fixé à la banche intérieure pour pouvoir autoriser la formation du becquet.Of course, the terms "superior", "lower" ... must be understood according to an operating position of the formwork device of the invention is a position in which the formwork device rests between the two panels being attached to the internal banche to be able to authorize the formation of the spoiler.

Les termes de « banche extérieure » et de « banche intérieure » doivent être entendus comme désignant respectivement la banche qui est positionnée à l'extérieur du bâtiment en construction et la banche qui est positionnée à l'intérieur du bâtiment en construction.The terms "outer box" and "inner box" must be understood to mean respectively the form that is positioned outside the building under construction and the form that is positioned inside the building under construction.

D'autres caractéristiques et avantages de l'invention ressortiront de la description donnée ci-après de modes de réalisation particuliers de l'invention.Other features and advantages of the invention will emerge from the description given below of particular embodiments of the invention.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés parmi lesquels :

  • la figure 1 est une vue éclatée en perspective d'un dispositif de coffrage selon un mode de réalisation particulier de l'invention,
  • la figure 2 est une vue en perspective du dispositif de coffrage illustré à la figure 1 en position sur une banche intérieure, un élément d'arase étant en outre représenté,
  • les figures 3a à 3d illustrent schématiquement les différentes étapes de fabrication d'un becquet de mur banché à l'aide du dispositif de coffrage illustré à la figure 1.
Reference will be made to the appended drawings among which:
  • the figure 1 is an exploded perspective view of a formwork device according to a particular embodiment of the invention,
  • the figure 2 is a perspective view of the formwork device shown in FIG. figure 1 in position on an inner wall, a base element being furthermore represented,
  • the Figures 3a to 3d schematically illustrate the various stages of manufacture of a walled spoiler using the formwork device illustrated in FIG. figure 1 .

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence aux figures 1 à 2, le dispositif de coffrage 1 selon le mode de réalisation particulier de l'invention comporte un élément de coffrage perdu 2, un organe de connexion intermédiaire 50 et un aimant 3, l'élément de coffrage perdu 2 et l'organe de connexion intermédiaire 50 étant pourvus de moyens de leur liaison temporaire et l'organe de connexion intermédiaire 50 et l'aimant 3 étant également pourvus de moyens de leur liaison temporaire. L'aimant 3 et l'élément de coffrage perdu 2 ne sont ainsi pas directement solidarisés l'un à l'autre mais sont solidarisés l'un à l'autre par l'intermédiaire de l'organe de connexion intermédiaire 50.With reference to Figures 1 to 2 , the shuttering device 1 according to the particular embodiment of the invention comprises a lost formwork element 2, an intermediate connection member 50 and a magnet 3, the lost formwork element 2 and the intermediate connection member 50 being provided with means of their temporary connection and the intermediate connection member 50 and the magnet 3 are also provided with means of their temporary connection. The magnet 3 and the lost formwork element 2 are thus not directly secured to one another but are secured to one another by via the intermediate connection member 50.

L'élément de coffrage 2 est ici conformé de sorte à présenter une hauteur sensiblement égale à celle du plancher qui sera construit en regard dudit élément de coffrage 2 afin que l'élément de coffrage 2 permette la formation d'un becquet ayant une face supérieure arrivant au niveau de la face supérieure dudit plancher.The shuttering element 2 is here shaped so as to have a height substantially equal to that of the floor which will be constructed opposite said shuttering element 2 so that the shuttering element 2 allows the formation of a spoiler having an upper face. arriving at the level of the upper face of said floor.

L'élément de coffrage 2 s'étend ici selon une première direction X.The formwork element 2 extends here in a first direction X.

L'élément de coffrage 2 comporte une grille 4 d'un seul tenant. La grille 4 est ici en matière plastique et par exemple en polypropylène. La grille 4 comporte des perforations identiques réparties de manière homogène sur toute sa surface avec un diamètre de perforations compris entre 3 mm et 10 mm. La grille 4 est ici conformée de sorte à être très souple. En particulier, la grille 4 peut être ici roulée sur elle-même de par sa souplesse intrinsèque. La grille 4 est donc plate lorsqu'elle est seule et non solidarisée à l'organe de connexion 50.The shuttering element 2 comprises a grid 4 in one piece. The grid 4 is here plastic and for example polypropylene. The grid 4 has identical perforations homogeneously distributed over its entire surface with a perforation diameter of between 3 mm and 10 mm. The grid 4 is here shaped so as to be very flexible. In particular, the grid 4 can be here rolled on itself by its intrinsic flexibility. The gate 4 is flat when it is alone and not secured to the connection member 50.

L'élément de coffrage 2 comporte également plusieurs raidisseurs 17 s'étendant chacun selon la première direction X dans la grille 4 et étant solidaire chacun de ladite grille 4. Chaque raidisseur 17 est par exemple dans un matériau à base de métal. Chaque raidisseur 17 se présente ici sous la forme d'une barre. Chaque raidisseur 17 s'étend sur toute la longueur de l'élément de coffrage 2.The shuttering element 2 also comprises a plurality of stiffeners 17 each extending in the first direction X in the grid 4 and each being integral with said grid 4. Each stiffener 17 is for example made of a metal-based material. Each stiffener 17 is here in the form of a bar. Each stiffener 17 extends over the entire length of the formwork element 2.

On limite ainsi le volume et l'encombrement de la grille 4 qui peut être de très faible épaisseur (et donc très souple) grâce aux raidisseurs 17.This limits the volume and bulk of the grid 4 which can be very thin (and therefore very flexible) thanks to the stiffeners 17.

L'organe de connexion 50 est ici conformé en un profilé. L'organe de connexion 50 est ainsi plat. L'organe de connexion 50 présente donc une faible épaisseur selon le premier axe X. L'organe de connexion 50 comporte deux faces principales reliées par des flancs latéraux. Un premier flanc latéral 51 fait ainsi face à l'élément de coffrage 2 et un deuxième flanc latéral 52, opposé au premier flanc latéral 51, fait face à l'aimant 3. Lesdits flancs latéraux étant reliés supérieurement par un troisième flanc 53 et inférieurement par un quatrième flanc 54.The connection member 50 is here shaped into a profile. The connection member 50 is thus flat. The connection member 50 thus has a small thickness along the first axis X. The connecting member 50 has two main faces connected by side flanks. A first lateral flank 51 thus faces the shuttering element 2 and a second lateral flank 52, opposite to the first lateral flank 51, faces the magnet 3. Said lateral flanks being connected superiorly by a third flank 53 and inferiorly by a fourth flank 54.

L'organe de connexion 50 est par exemple en matière plastique. L'organe de connexion est par exemple en polypropylène.The connection member 50 is for example plastic. The connection member is for example polypropylene.

Le premier flanc 51, le quatrième flanc 54 et l'élément de coffrage 2 comportent des moyens de leur liaison temporaire.The first sidewall 51, the fourth sidewall 54 and the formwork element 2 comprise means of their temporary connection.

Ici, les raidisseurs 17 de l'élément de coffrage 2 forment une partie de ces moyens et le premier flanc 51 et le quatrième flanc 54 sont pourvus d'orifices 55 correspondants pour l'encliquetage des raidisseurs 17 sur le premier flanc 51 et le quatrième flanc 54, à chaque orifice 55 étant associé l'un des raidisseurs 17. La grille 4 étant souple, elle peut suivre l'encliquetage successif des raidisseurs 17 sur l'organe de connexion 50 de sorte à venir épouser la forme de la succession du premier flanc 51 et du quatrième flanc 54. On note donc que les raidisseurs 17 jouent à la fois un rôle de rigidification de la grille 4 et un rôle d'attache de l'élément de coffrage 2 à l'organe de connexion 50.Here, the stiffeners 17 of the shuttering element 2 form part of these means and the first flank 51 and the fourth flank 54 are provided with corresponding orifices 55 for the snap-fastening of the stiffeners 17 on the first flank 51 and the fourth flank 51. flank 54, each orifice 55 being associated with one of the stiffeners 17. The grid 4 being flexible, it can follow the successive snap-fastening of the stiffeners 17 on the connection member 50 so as to come to follow the shape of the succession of the first flank 51 and fourth flank 54. It is therefore noted that the stiffeners 17 play both a role of stiffening of the grid 4 and a role of attachment of the shuttering element 2 to the connection member 50.

Le premier flanc 51 et le quatrième flanc 54 sont conformés de sorte que lorsque l'élément de coffrage 2 est solidarisé à l'organe de connexion 50, l'élément de coffrage 2 présente une partie supérieure plane présentant une première face principale dite face coffrante 6 et une deuxième face principale, opposée à la première face principale, dite face non coffrante 7 et comportant une partie inférieure 8 qui est recourbée du côté de la face non coffrante 7 de la partie supérieure. De préférence, Le premier flanc 51 est ici conformé en une portion plane rectiligne et le quatrième flanc 54 est conformé en une portion plane rectiligne qui est cependant recourbée au niveau de son extrémité rattachée au premier flanc 51.The first sidewall 51 and the fourth sidewall 54 are shaped so that when the formwork element 2 is secured to the connection member 50, the formwork element 2 has a planar upper portion having a first main face so called formwork 6 and a second main face, opposite to the first main face, said non-formworking face 7 and having a lower portion 8 which is curved on the side of the non-formworked face 7 of the upper part. Preferably, the first flank 51 is here shaped in a straight flat portion and the fourth flank 54 is shaped as a straight flat portion which is however curved at its end attached to the first flank 51.

De préférence, les raidisseurs 17 et les orifices 55 sont régulièrement répartis respectivement le long de l'élément de coffrage 2 et le long du premier flanc 51 et du quatrième flanc 54. Les raidisseurs 17 et les orifices 55 sont ici au nombre de quatre.Preferably, the stiffeners 17 and the orifices 55 are regularly distributed respectively along the shuttering element 2 and along the first sidewall 51 and the fourth sidewall 54. The stiffeners 17 and the orifices 55 are here four in number.

De façon avantageuse, du fait que les deux raidisseurs 17 s'étendent sur toute la longueur de l'élément de coffrage 2, la position de l'organe de connexion 50 relativement à l'élément de coffrage 2 n'est pas figée. On peut ainsi adapter la position de l'organe de connexion 50 relativement à l'élément de coffrage 2 ce qui facilite le montage du dispositif 1 à une banche notamment lorsque ledit dispositif 1 doit être redécoupé sur chantier pour présenter les bonnes dimensions.Advantageously, because the two stiffeners 17 extend over the entire length of the shuttering element 2, the position of the connection member 50 relative to the shuttering element 2 is not fixed. It is thus possible to adapt the position of the connection member 50 relative to the formwork element 2 which facilitates the mounting of the device 1 to a particular formwork when said device 1 must be cut on site to present the right dimensions.

Par ailleurs, l'organe de connexion 50 et l'aimant 3 sont également pourvus de moyens de leur liaison temporaire.Moreover, the connection member 50 and the magnet 3 are also provided with means for their temporary connection.

A cet effet, le deuxième flanc 52 est ici pourvu dans sa portion inférieure d'une première patte d'encliquetage 56 qui s'étend perpendiculairement au deuxième flanc 53. De préférence, le troisième flanc 53 est ici également pourvu d'une deuxième patte d'encliquetage 57. Ladite deuxième patte d'encliquetage 57 comporte une portion de fixation 58 au troisième flanc 53 de l'organe de connexion 50 de sorte à s'étendre perpendiculairement au troisième flanc 53 et une portion d'encliquetage 59 s'étendant depuis la portion de fixation 58 sensiblement perpendiculairement à la portion de fixation 58 en direction du deuxième flanc 52.For this purpose, the second flank 52 is here provided in its lower portion with a first latching lug 56 which extends perpendicular to the second flank 53. Preferably, the third flank 53 is here also provided with a second leg latch 57. Said second latching lug 57 has a securing portion 58 at the third flank 53 of the connecting member 50 so as to extend perpendicular to the third flank 53 and a detent portion 59 extending from the fastening portion 58 substantially perpendicularly to the fastening portion 58 towards the second flank 52.

De préférence, les deux pattes 56, 57 sont ici conformés de sorte à toucher la banche intérieure lorsque l'organe de connexion 50 est solidarisé à l'aimant 3.Preferably, the two tabs 56, 57 are here shaped so as to touch the inner panel when the connection member 50 is secured to the magnet 3.

Ceci permet de renforcer la solidité du dispositif et notamment d'éviter qu'il ne bascule vers la banche intérieure de par la poussée du béton lorsque le béton est coulé.This makes it possible to reinforce the solidity of the device and in particular to prevent it from tilting towards the inner shell by the thrust of the concrete when the concrete is poured.

Ainsi, au moins l'un des flancs de l'organe de connexion 50 est solidarisé de façon temporaire à l'élément de coffrage 2 et au moins un autre des flancs de l'organe de connexion 50 est solidarisé à l'aimant 3.Thus, at least one of the flanks of the connection member 50 is secured temporarily to the shuttering element 2 and at least one other of the flanks of the connection member 50 is secured to the magnet 3.

De préférence, l'organe de connexion 50 comporte en partie inférieure un logement 60 d'un élément d'arase 70. Le logement 60 s'étend par exemple entre la première patte 56 et le quatrième flanc 54. Le logement 60 est typiquement une simple découpe dans l'organe de connexion 50.Preferably, the connecting member 50 comprises in the lower part a housing 60 of a base member 70. The housing 60 extends for example between the first leg 56 and the fourth sidewall 54. The housing 60 is typically a simple cut in the connection member 50.

Il est ainsi possible d'agencer un élément d'arase 70, faisant ou non partie du dispositif 1, sur la banche intérieure avant de disposer aimant 3, organe de connexion 50 et élément de coffrage 2 entre les deux banches, le logement 60 de l'organe de connexion 50 autorisant la présence de l'élément d'arase 70.It is thus possible to arrange a base member 70, whether or not part of the device 1, on the inner wall before having magnet 3, connection member 50 and shuttering element 2 between the two panels, the housing 60 of the connection member 50 allowing the presence of the base member 70.

L'élément d'arase 70 est ici un aimant.The base element 70 is here a magnet.

L'élément d' arase 70 est ici conformé en une simple barre s'étendant selon le premier axe X.The base member 70 is here shaped into a simple bar extending along the first axis X.

Ainsi même si du béton venait à remonter au niveau de la partie inférieure de la grille 4, l'élément d'arase 70 empêcherait la remontée du béton à son niveau de sorte qu'après retrait des banches, de l'aimant 3, de l'élément d'arase 70 et de l'organe de connexion 50, une arase plane sera présente dans le béton coulé au niveau du futur plancher ce qui facilitera la fabrication dudit plancher notamment de la pose d'éléments de construction comme des prédalles sur le mur fabriqué.Thus, even if concrete were to rise to the level of the lower part of the grid 4, the base element 70 would prevent the rise of the concrete to its level so that after removal of the panels, the magnet 3, the base member 70 and the connecting member 50, a planar arase will be present in the concrete poured at the level of the future floor which will facilitate the manufacture of said floor including the installation of building elements as predalles on the wall made.

Par ailleurs, l'aimant 3 comporte ici un bloc 22 présentant une première face principale 23 plane destinée à venir reposer contre une banche et une deuxième face principale 24 plane, opposée à la première face principale 23, et faisant face à l'organe de connexion 50.Furthermore, the magnet 3 here comprises a block 22 having a first main face 23 planar to come to rest against a banche and a second main face 24 flat, opposite the first main face 23, and facing the body of connection 50.

L'aimant 3 comporte une troisième patte 25 qui est agencée en partie supérieure du bloc 22 pour venir s'encliqueter dans la deuxième patte 57. Plus précisément ici, la troisième patte 25 s'étend à partir du haut du bloc 22 et est inclinée en direction de l'organe de connexion 50 et comporte un doigt 26 s'étendant sensiblement à la perpendiculaire du reste de la troisième patte 26 pour s'encliqueter dans la deuxième patte 57.The magnet 3 has a third tab 25 which is arranged in the upper part of the block 22 to snap into the second tab 57. More precisely here, the third tab 25 extends from the top of the block 22 and is inclined in the direction of the connection member 50 and comprises a finger 26 extending substantially perpendicular to the rest of the third tab 26 to snap into the second tab 57.

De préférence, l'aimant 3 et l'organe de connexion 50 sont conformés de sorte que lorsque le doigt 26 est encliqueté dans la deuxième patte 57, une face inférieure 28 de la troisième patte 25 repose contre le troisième flanc 53 de l'organe de connexion.Preferably, the magnet 3 and the connection member 50 are shaped so that when the finger 26 is snapped into the second tab 57, a lower face 28 of the third tab 25 rests against the third side 53 of the organ connection.

En outre, la face inférieure du bloc 22 comporte une encoche 27 dans laquelle la première patte 56 de l'organe de connexion 55 vient s'encliqueter.In addition, the lower face of the block 22 has a notch 27 in which the first leg 56 of the connecting member 55 snaps.

De la sorte, l'aimant 3 peut être solidarisé de façon temporaire à l'organe de connexion 50 en deux zones : une zone haute par la coopération de la deuxième patte 59 et de la troisième patte 25 de l'aimant 3 et de l'organe de connexion 50 et une zone basse par la coopération de la première patte 56 avec l'encoche 27.In this way, the magnet 3 can be temporarily secured to the connection member 50 in two zones: a high zone by the cooperation of the second leg 59 and the third leg 25 of the magnet 3 and the connection member 50 and a lower zone by the cooperation of the first leg 56 with the notch 27.

Ceci assure une bonne solidarisation des différentes pièces du dispositif 1 entre elles et donc un bon maintien en position du dispositif 1 sur la banche même lors du coulage du béton.This ensures a good bonding of the various parts of the device 1 between them and therefore a good holding in position of the device 1 on the board even when pouring concrete.

Dans le mode de réalisation illustré, le dispositif 1 ne comporte qu'un seul aimant 3.In the illustrated embodiment, the device 1 comprises only one magnet 3.

De préférence, le bloc 22 de l'aimant 3 comporte des repères d'arasement. A cet effet, l'aimant 3 comporte plusieurs rainures 30 au niveau au moins de l'un de ses flancs latéraux reliant les deux faces principales 23, 24 du bloc 22 de l'aimant 3, à chaque rainure 30 correspondant une hauteur de plancher visée. De préférence, une indication numérique 31 de cette hauteur est associée à chacune de ces rainures 30.Preferably, the block 22 of the magnet 3 comprises alignment marks. For this purpose, the magnet 3 has several grooves 30 at least at one of its lateral flanks connecting the two main faces 23, 24 of the block 22 of the magnet 3, with each groove 30 corresponding to a floor height referred. Preferably, a digital indication 31 of this height is associated with each of these grooves 30.

De la sorte, il s'avère plus simple pour un opérateur de visualiser la hauteur de becquet qu'il doit créer pour être en adéquation avec la hauteur de parquet voulue.In this way, it is easier for an operator to visualize the spoiler height he must create to be in adequacy with the desired floor height.

En référence aux figures 3a à 3d, la fabrication d'un becquet d'un mur banché à l'aide du dispositif 1 précité va être à présente décrite.With reference to Figures 3a to 3d , the manufacture of a spoiler of a wall banché using the device 1 above will now be described.

En référence à la figure 3a, les deux banches 40, 41 l'élément d'arase 70 et le dispositif 1 sont montés de sorte que le dispositif 1 se trouve agencé entre les deux banches 40, 41 en étant porté, via l'aimant 3, par la banche intérieure 41, l'élément d'arase 70 se trouvant alors au niveau du logement 60 de l'organe de connexion 50. Le dispositif 1 a par exemple été rapporté de façon unitaire sur la banche intérieure 41 avant montage de la banche extérieure 40 (sans l'élément d'arase 70 toutefois) mais l'opérateur a également la possibilité d'agencer d'abord l'aimant 3 sur la banche intérieure 41 avant d'y solidariser l'organe de connexion 50 et l'élément de coffrage 2 et de monter la banche extérieure 40. Le dispositif 1 s'avère donc ergonomique puisqu'il offre différentes possibilités de montage à l'opérateur.With reference to the figure 3a , the two panels 40, 41 the base element 70 and the device 1 are mounted so that the device 1 is arranged between the two panels 40, 41 being carried, via the magnet 3, by the inner wall 41, the base member 70 being then at the housing 60 of the connecting member 50. The device 1 has for example been reported unitarily on the inner wall 41 before mounting the outer wall 40 (without the base element 70, however) but the operator also has the possibility of first arranging the magnet 3 on the inner wall 41 before joining the connecting member 50 and the shuttering element 2 and to mount the outer panel 40. The device 1 thus proves ergonomic since it offers different possibilities of mounting to the operator.

L'opérateur vient alors verser du béton entre les deux banches 40, 41, comme illustré par la flèche, au niveau du goulot 42 délimité d'une part par la banche extérieure 40 et d'autre part par la face coffrante 6 de l'élément de coffrage 2.The operator then pour concrete between the two panels 40, 41, as illustrated by the arrow, at the neck 42 delimited on the one hand by the outer wall 40 and on the other by the formwork side 6 of the shuttering element 2.

L'opérateur coule donc du béton jusqu'à ce que le béton atteigne le niveau voulu (notamment grâce aux repères d'arasement de l'aimant 3). Dès lors en référence à la figure 3b, une fois coulé, le béton forme d'une part une portion de mur 44 dont la face supérieure vient à l'arase du futur plancher au moins au niveau de l'emplacement de l'élément d'arase 70 et d'autre part un becquet 45 prolongeant le mur pour former une rive dudit plancher (étant ici d'une hauteur sensiblement égale à la hauteur du futur plancher).The operator therefore flows concrete until the concrete reaches the desired level (in particular thanks to the alignment marks of the magnet 3). Therefore with reference to the figure 3b once poured, the concrete forms on the one hand a wall portion 44 whose upper face comes to the arase of the future floor at least at the location of the base member 70 and secondly a spoiler 45 extending the wall to form a bank of said floor (being here a height substantially equal to the height of the future floor).

En référence à la figure 3c, on retire alors les deux banches 40, 41 et l'élément d'arase 70 puis, comme visible à la figure 3d, on récupère l'aimant 3 et l'organe de connexion 50 en les désolidarisant de l'élément de coffrage 2 qui est lui perdu puisque déjà partiellement noyé dans le béton. L'aimant 3, l'élément d'arase 70 et l'organe de connexion 50 n'ont alors plus qu'à être nettoyés pour pouvoir être réutilisés.With reference to the figure 3c , then remove the two panels 40, 41 and the arase element 70 and, as visible in FIG. figure 3d the magnet 3 and the connection member 50 are recovered by disconnecting them from the shuttering element 2 which is lost to it since it is already partially embedded in the concrete. The magnet 3, the base member 70 and the connection member 50 then only need to be cleaned in order to be reused.

On constate que du fait du retrait de l'élément d'arase 70, un léger espace 46 demeure dans la portion de mur 44 fabriqué au niveau du bord longitudinal supérieur du mur 44 sous l'emplacement du futur plancher. Ceci permet de créer une surface plane pour la création du futur plancher.It is found that due to the removal of the base member 70, a slight gap 46 remains in the wall portion 44 manufactured at the upper longitudinal edge of the wall 44 under the location of the future floor. This creates a flat surface for the creation of the future floor.

Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation entrant dans le cadre de l'invention.Naturally, the invention is not limited to the embodiment described and variations can be made that come within the scope of the invention.

En particulier, le dispositif selon l'invention peut être associé à la fabrication d'un becquet de mur banché connecté à tout type de plancher que ce soit un plancher à prédalles, un plancher à dalle pleine ...In particular, the device according to the invention can be associated with the manufacture of a banché wall spoiler connected to any type of floor whether it is a floor to floor, a floor with full slab ...

Bien qu'ici l'élément de coffrage présente une hauteur sensiblement égale à celle du plancher, l'élément de coffrage pourra présenter une hauteur supérieure à celle du plancher de sorte à permettre la formation d'un becquet d'une hauteur supérieure à celle du plancher. Le becquet permettra ainsi non seulement de former une rive du plancher mais en outre de former une « talonnette » soit une excroissance supplémentaire de béton dépassant du plancher et facilitant la poursuite de la construction du mur. Avec cette variante, on améliore en outre l'aspect visuel extérieur du mur en limitant encore davantage les risques de coulures entre le plancher et la portion de mur supérieure.Although here the formwork element has a height substantially equal to that of the floor, the formwork element may have a height greater than that of the floor so as to allow the formation of a spoiler of a height greater than that of the floor. The spoiler will thus not only to form a bank of the floor but also to form a "heelette" is an additional growth of concrete protruding from the floor and facilitating the continuation of the construction of the wall. With this variant, the external visual appearance of the wall is further improved by further limiting the risk of run-off between the floor and the upper wall portion.

Par ailleurs, l'élément de coffrage et l'organe de connexion pourront être différents de ce qui a été décrit. Ainsi bien qu'ici la partie inférieure de la grille soit recourbée de sorte à former un congé avec la partie supérieure de la grille lorsque l'élément de coffrage est monté sur l'organe de connexion, la partie inférieure de la grille pourra être recourbée de sorte à s'étendre en équerre pour former un angle droit avec la partie supérieure de la grille. La grille pourra prendre une tout autre forme que celle illustrée avec notamment des orifices de section rectangulaire, carré, circulaire, en losange ... Les orifices seront toutefois de dimensions relativement réduites avec un diamètre compris entre 3 mm et 10 mm pour une bonne reprise de bétonnage. La grille pourra comporter en outre une ou plusieurs nervures de renforcement de la grille traversant de façon discontinue la grille : ceci permettra de rigidifier la grille sans toutefois gêner outre mesure la reprise de bétonnage. Bien qu'ici la grille soit très souple, la grille pourra au contraire être dans un matériau plus rigide de sorte à être directement conformée pour présenter une partie inférieure recourbée du côté d'une face non coffrante de la grille même lorsque la grille n'est pas solidarisée à l'organe de connexion. Les raidisseurs permettront alors seulement de solidariser organe de connexion et grille et éventuellement de raidir encore davantage la grille. Bien entendu l'élément de coffrage et l'organe de connexion pourront être solidarisés l'un à l'autre autrement que par les raidisseurs de la grille.Furthermore, the formwork element and the connection member may be different from what has been described. Thus although here the lower part of the grid is curved so as to form a fillet with the upper part of the grid when the formwork element is mounted on the connection member, the lower part of the grid can be bent so as to extend at right angles to form a right angle with the upper part of the grid. The grid may take a completely different form than that illustrated with holes of rectangular, square, circular, diamond ... The holes will however be relatively small with a diameter of between 3 mm and 10 mm for a good recovery concreting. The grid may further comprise one or more reinforcement ribs of the grid passing discontinuously through the grid: this will stiffen the grid without however unduly hampering the resumption of concreting. Although here the grid is very flexible, the grid may instead be in a more rigid material so as to be directly shaped to present a curved bottom portion of the side of a non-formwork face of the grid even when the grid n ' is not secured to the connection member. The stiffeners will then only to secure connection member and grid and possibly further stiffen the grid. Good understood the formwork element and the connection member may be secured to each other other than by the stiffeners of the grid.

On préférera toutefois avoir une grille souple ce qui permettra ainsi avec une même grille et un même aimant de définir des becquets de dimensions différentes en ayant recours à un organe de connexion différent. En effet, en fonction des moyens de solidarisation de l'organe de connexion à la grille il sera possible conformer la grille dans une forme différente.However, it will be preferable to have a flexible grid which will thus allow with the same grid and the same magnet to define spoilers of different dimensions by having recourse to a different connection member. Indeed, depending on the connection means of the connecting member to the grid it will be possible to conform the grid in a different form.

La grille pourra être dans un autre matériau que ce qui a été indiqué et être ainsi par exemple en matériau métallique que la grille soit souple ou rigide.The grid may be in a material other than what has been indicated and thus be, for example metal material that the grid is flexible or rigid.

L'organe de connexion pourra éventuellement être évidé dans son centre afin de le rendre plus léger.The connection member may optionally be hollowed in its center to make it lighter.

Le dispositif pourra comporter une grille en plusieurs portions au lieu d'un seul tenant. Par exemple, la grille pourra être formée de deux portions qui seront montées mobiles en translation l'une par rapport à l'autre selon la première direction X ce qui permettra de modifier la longueur de l'élément de coffrage.The device may include a grid in several portions instead of one piece. For example, the grid may be formed of two portions that will be mounted movable in translation relative to each other in the first direction X which will change the length of the formwork element.

L'aimant pourra comporter des moyens d'emboîtement à un aimant adjacent. De la sorte, lorsque l'on juxtaposera deux dispositifs, les deux aimants de ces dispositifs pourront s'emboîter l'un dans l'autre. On limitera ainsi un déplacement relatif entre les deux dispositifs juxtaposés ce qui permettra de créer un becquet de meilleure qualité par la suite.The magnet may include means for interlocking with an adjacent magnet. In this way, when two devices are juxtaposed, the two magnets of these devices can fit into each other. This will limit a relative displacement between the two juxtaposed devices which will create a spoiler of better quality thereafter.

L'aimant pourra comporter une base à partir de laquelle s'étendront plusieurs branches pour la solidarisation à un même organe de connexion ou à différents organes de connexion.The magnet may comprise a base from which will extend several branches for attachment to the same connection member or to different connection members.

Seul l'aimant ou l'organe de connexion pourra comporter des moyens de leur liaison temporaire (par exemple dans le cas où l'organe de connexion comporte comme organe de liaison une pièce métallique apte à être aimanté sur l'aimant). De même, seul l'élément de coffrage ou l'organe de connexion pourra comporter des moyens de leur liaison temporaire.Only the magnet or the connection member may comprise means of their temporary connection (for example in the case where the connection member comprises as connecting member a metal part capable of being magnetized on the magnet). Similarly, only the formwork element or the connection member may include means for their temporary connection.

La solidarisation de l'élément de coffrage à l'aimant pourra se faire d'une part non seulement avec l'organe de connexion mais également directement entre l'élément de coffrage et l'aimant (qui comporteront alors en plus des moyens de leur liaison temporaire avec l'organe de connexion).The fastening of the shuttering element to the magnet can be done on the one hand not only with the connection member but also directly between the shuttering element and the magnet (which will then comprise in addition means of their temporary connection with the connection member).

Par ailleurs, le dispositif pourra comporter au moins un organe de connexion supplémentaire qui sera seulement temporairement solidarisé à l'élément de coffrage (et non à un aimant). Ceci permettra de rigidifier l'élément de coffrage et d'éviter notamment son effondrement lors du coulage du béton.Moreover, the device may comprise at least one additional connection member which will only temporarily be secured to the shuttering element (and not to a magnet). This will stiffen the formwork element and avoid especially its collapse during the pouring of concrete.

Le dispositif pourra comprendre un plus grand nombre d'aimants et/ou d'organes de connexion et/ou d'éléments de coffrage.The device may comprise a larger number of magnets and / or connection members and / or formwork elements.

Claims (19)

Dispositif de coffrage (1) pour la fabrication d'un becquet de mur banché comprenant : - un aimant (3), destiné à être aimanté sur une banche intérieure permettant de fabriquer le mur banché pour fixer le dispositif de coffrage à ladite banche intérieure, - un élément de coffrage (2) perdu qui comporte une grille (4), - un organe de connexion intermédiaire (50), l'organe de connexion intermédiaire étant indépendant de l'élément de coffrage perdu et de l'aimant, l'organe de connexion intermédiaire et l'aimant étant pourvus de moyens de leur liaison temporaire et l'organe de connexion intermédiaire et l'élément de coffrage étant pourvus de moyens de leur liaison temporaire de sorte que lorsque l'élément de coffrage est solidarisé à l'organe de connexion intermédiaire, une partie inférieure de la grille est recourbée du côté d'une face non coffrante de la grille. Shuttering device (1) for the manufacture of a walled spoiler comprising: a magnet (3) intended to be magnetized on an inner wall allowing the wall to be manufactured to fix the shuttering device to said inner wall, - a formwork element (2) lost which comprises a grid (4), an intermediate connection member (50), the intermediate connection member being independent of the lost formwork element and the magnet, the intermediate connection member and the magnet being provided with means for their temporary connection and the intermediate connecting member and the shuttering element being provided with means for their temporary connection so that when the shuttering element is secured to the intermediate connection member, a lower portion of the grid is bent on the side of the a non-formwork face of the grid. Dispositif de coffrage selon la revendication 1, dans lequel l'organe de connexion (50) est conformé en un profilé.Shuttering device according to claim 1, wherein the connecting member (50) is shaped as a profile. Dispositif de coffrage selon l'une des revendications précédentes, dans lequel l'organe de connexion (50) comporte au moins un orifice apte à l'encliquetage d'au moins un raidisseur de la grille (4) pour la solidarisation de l'élément de coffrage à l'organe de connexion.Shuttering device according to one of the preceding claims, wherein the connecting member (50) comprises at least one orifice adapted to snap at least one stiffener of the grid (4) for the fastening of the element. formwork to the connection member. Dispositif de coffrage selon l'une des revendications précédentes, dans lequel la grille (4) comporte des raidisseurs (17) s'étendant sur toute la longueur de l'élément de coffrage (2).Shuttering device according to one of the preceding claims, wherein the grid (4) comprises stiffeners (17) extending over the entire length of the shuttering element (2). Dispositif de coffrage selon l'une des revendications précédentes, dans lequel l'organe de connexion comporte au moins une patte d'encliquetage (56, 57) sur l'aimant.Shuttering device according to one of the preceding claims, wherein the connecting member comprises at least one latching lug (56, 57) on the magnet. Dispositif de coffrage selon la revendication précédente, dans lequel l'aimant comporte au moins une patte (25) et/ou une encoche (27) pour l'encliquetage de la patte d'encliquetage de l'organe de connexion (50).Shuttering device according to the preceding claim, wherein the magnet comprises at least one lug (25) and / or a notch (27) for latching the latching lug of the connecting member (50). Dispositif selon la revendication 5 ou la revendication 6, dans lequel la patte d'encliquetage est conformée de sorte à venir toucher la banche intérieure lorsque l'organe de connexion (50) est solidarisé à l'aimant (3) et l'aimant monté sur la banche intérieure.Device according to claim 5 or claim 6, wherein the latching lug is shaped so as to come into contact with the inner panel when the connection member (50) is secured to the magnet (3) and the magnet mounted on the inner side. Dispositif selon l'une des revendications précédentes, dans lequel l'organe de connexion (50) comporte en partie inférieure un logement (60) destiné à recevoir un élément d'arase (70).Device according to one of the preceding claims, wherein the connecting member (50) comprises in the lower part a housing (60) for receiving a base member (70). Dispositif selon la revendication précédente, dans lequel le dispositif comporte l'élément d'arase (70).Device according to the preceding claim, wherein the device comprises the base member (70). Dispositif selon la revendication précédente, dans lequel l'élément d'arase (70) est un aimant.Device according to the preceding claim, wherein the base element (70) is a magnet. Dispositif de coffrage selon l'une des revendications précédentes, dans lequel l'organe de connexion (50) est en matière plastique.Shuttering device according to one of the preceding claims, wherein the connecting member (50) is made of plastic. Dispositif de coffrage selon la revendication 11, dans lequel l'organe de connexion est en polypropylène.Shuttering device according to claim 11, wherein the connecting member is made of polypropylene. Dispositif selon l'une des revendications précédentes, dans lequel l'aimant (3) comporte au moins un repère d'arasement.Device according to one of the preceding claims, wherein the magnet (3) comprises at least one registration mark. Dispositif selon la revendication 13, dans lequel le repère d'arasement comporte une rainure ménagée dans l'aimant.Device according to claim 13, wherein the registration mark has a groove in the magnet. Dispositif selon la revendication 14, dans lequel le repère d'arasement comporte en outre au moins une référence numérique associée à la rainure.Device according to claim 14, in which the alignment mark further comprises at least one numerical reference associated with the groove. Organe de connexion d'un dispositif de coffrage selon l'une des revendications précédentes, apte à être solidarisé de façon temporaire à un aimant destiné à être aimanté sur une banche intérieure permettant de fabriquer un mur banché et apte à être solidarisé de façon temporaire à un élément de coffrage perdu qui comporte une grille.Connecting member of a formwork device according to one of the preceding claims, adapted to be secured temporarily to a magnet to be magnetized on an inner wall to make a wall banché and able to be secured temporarily to a lost formwork element that includes a grid. Elément de coffrage d'un dispositif de coffrage selon l'une des revendications 1 à 15, comportant une grille (4) dont une partie inférieure est recourbée du côté d'une face non coffrante de la grille.Shuttering element of a shuttering device according to one of claims 1 to 15, comprising a grid (4), a lower part of which is curved on the side of a non-formwork face of the grid. Aimant d'un dispositif de coffrage selon l'une des revendications 1 à 15, apte à être solidarisé de façon temporaire à un élément de coffrage comportant une grille (4) dont une partie inférieure est recourbée du côté d'une face non coffrante de la grille.Magnet of a shuttering device according to one of claims 1 to 15, adapted to be secured temporarily to a shuttering element comprising a grid (4), a lower part is bent on the side of a non-formworked face of Grid. Procédé de fabrication d'un becquet (45) de mur (44) banché à l'aide d'un dispositif selon l'une des revendications 1 à 15, comportant les étapes de : - agencer le dispositif sur une banche intérieure (41) avant de positionner la banche extérieure (40), - couler du béton entre la banche extérieure et la face coffrante (6) de la grille, - retirer les banches, l'organe de connexion et l'aimant (3) du mur et du becquet ainsi formés. Method of manufacturing a spoiler (45) wall (44) banché using a device according to one of claims 1 to 15, comprising the steps of: - arranging the device on an inner wall (41) before positioning the outer wall (40), pouring concrete between the outer wall and the formwork face (6) of the grid, - remove the panels, the connecting member and the magnet (3) of the wall and the spoiler thus formed.
EP16159571.5A 2015-04-23 2016-03-10 Formwork device for manufacturing a shuttered-wall strut, connection member, lost formwork element and magnet of said formwork device and manufacturing method using same Withdrawn EP3085854A1 (en)

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FR1553666A FR3035425B1 (en) 2015-04-23 2015-04-23 FORMING DEVICE FOR MANUFACTURING BANK WALL SQUARE, LOST FORMWORK MEMBER AND MAGNET OF SAID FORMING DEVICE AND METHOD OF MANUFACTURING USING SAME.

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Citations (3)

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FR2615226A1 (en) * 1987-05-15 1988-11-18 Habermann Pierre Negative formwork device incorporating at least one element with flexible walls, intended for fitting corner connection bars or the like
DE9417137U1 (en) * 1994-10-25 1995-01-26 Peca-Verbundtechnik Gmbh, 84130 Dingolfing Formwork element
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FR2615226A1 (en) * 1987-05-15 1988-11-18 Habermann Pierre Negative formwork device incorporating at least one element with flexible walls, intended for fitting corner connection bars or the like
DE9417137U1 (en) * 1994-10-25 1995-01-26 Peca-Verbundtechnik Gmbh, 84130 Dingolfing Formwork element
FR3001745A1 (en) * 2013-02-07 2014-08-08 Armatures Assemblees Mure Soc Nouv Method for construction of semi-suspended floor with regard to wall, involves tracing level of under-face of floor on form of formwork, and setting up rules levelled with formwork by positioning lower edge in layout

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FR3035426B1 (en) 2017-04-14
FR3035426A1 (en) 2016-10-28
FR3035425A1 (en) 2016-10-28

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