EP0593316A1 - Formclamp and method for realising a form with such clamp - Google Patents

Formclamp and method for realising a form with such clamp Download PDF

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Publication number
EP0593316A1
EP0593316A1 EP93401312A EP93401312A EP0593316A1 EP 0593316 A1 EP0593316 A1 EP 0593316A1 EP 93401312 A EP93401312 A EP 93401312A EP 93401312 A EP93401312 A EP 93401312A EP 0593316 A1 EP0593316 A1 EP 0593316A1
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EP
European Patent Office
Prior art keywords
angles
angle
branches
branch
dihedral
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EP93401312A
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German (de)
French (fr)
Inventor
Jean Leriche
Stéphane Henri Leriche
Ludovic Léo Leriche
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor

Definitions

  • the present invention relates to angles for formwork, and more particularly those which make it possible to form formwork serving as concrete molds for the manufacture of posts, pylons or the like. It also concerns a process for producing formwork using angles of this type.
  • Angles are already known which make it possible to form forms serving as molds for the production of concrete parts, in particular of substantially parallelepiped shape.
  • Such angles are essentially made up of two branches forming a dihedral with a salient angle, for example at an angle, and means for holding or hooking these two branches with a whole set of other most diverse elements.
  • angles and at least three boards makes it possible to form a prismatic formwork by arranging the boards against the branches of the angles, their edges joining along the edges of the dihedra defined by these branches, and by surrounding with a hoop the angle-plank assembly so as to keep them tightly tight, thereby defining a substantially prismatic space with a triangular, rectangular, square base, etc. depending on the number of angles and boards used, in which concrete can be poured to constitute, for example, a post or the like.
  • the present invention thus aims to achieve a formwork angle which allows to overcome the drawbacks of those of the prior art as described above and which facilitates the production of forms as well as their disassembly.
  • the present invention relates to a formwork angle, comprising two first and second branches forming a dihedral of non-zero projecting angle, a third branch integral with at least one of the other two said branches and a through hole produced in said third branch, characterized in that the axis of said breakthrough is substantially parallel to the edge of the dihedral defined by the first and second branches.
  • Figures 1 to 3 show three respectively front, top and side views of a preferred embodiment of an angle for formwork according to the invention.
  • This formwork angle 1 has two first 2 and second 3 branches forming a dihedral 4 with a non-zero salient angle 12 and intersecting along the edge 5 of the dihedral.
  • These two branches 2 and 3 are generally planar and form an angle different from a plane angle. In the embodiment illustrated in the figures, this angle is equal to ninety degrees, which allows to produce, as will be explained below, formwork for the construction of posts, beams or the like in a rectangular parallelepiped shape.
  • This angle iron 1 further comprises a third branch 6 secured to at least one of the other two branches 2 and 3 and a through hole 7 made in this third branch 6 so that its axis 8 is substantially parallel to the edge 5 of the dihedral 4.
  • the third branch 6 is located in the bisector plane 9 of the dihedral 4 and it is therefore integral with the other two branches 2 and 3, in their parts 10 which meet at the edge 5.
  • This third branch 6 is located in the re-entrant angle 11 defined by the dihedral 4 so as to allow the establishment of the strapping link mentioned below.
  • the through hole 7 is made in the third branch 6 at its second end 18 opposite the first 17 which is linked to the two branches 2 and 3, and the external face 19 of the second end 18 of the third branch 6 is advantageously curve to facilitate the passage and maintenance of the strapping link.
  • the formwork angle 1 further comprises means 20 for fixing a spacer on at least one of the first 2 and second 3 branches, and advantageously on both as in the embodiment illustrated in the figures.
  • fastening means 20 of a spacer on at least one of the two branches 2, 3 are advantageously constituted by a stud 21 integral with one face of the branch 2 or 3 on which the spacer must be fixed and by a orifice 22 advantageously tapped made in this stud.
  • FIGS. 1 to 3 make it possible to produce formwork for pouring, for example, full posts of rectangular parallelepiped shape and are particularly advantageous for casting such posts in a vertical position, at the same place where they must be in place.
  • the embodiment of a formwork for the production of such a post using angles according to the invention is described below with reference to FIGS. 4 and 5.
  • each panel 31, 32, 33, 34 is assembled to form a vertical rectangular parallelepiped 35 so that their edges are advantageously in contact with one another, for example by the face 36 of one and the edge 37 of the other. These panels are temporarily held in this position by any means.
  • sets of four angles 101-104 are placed in planes 41, 42, 43, ... regularly spaced from each other, as illustrated in Figure 5, so that each angle follows the corners of the panels in contact.
  • Each set of four angles 101-104 is surrounded by a link 44 which passes over the curved external face 19 of the second end 18 of each third branch.
  • a link can for example be constituted by a relatively flexible but solid metal strip and allows the angles to be well maintained on the corners of the panels in contact and against the panels, and to form the desired parallelepiped space 35, as appears on the Figures 4 and 5.
  • spacers 46, 47 ... such as plates or the like, can be arranged between two angles 201-202, 202-203,. .. the edges of which are aligned, the two ends 48, 49 of a spacer plate 46, 47, ... being respectively held, for example by screwing, on a stud 21.
  • angles reach substantially to the ground 54 while being guided, that is to say in complete safety for the people in the vicinity.
  • the worker continues his work by removing the strapping from the set of four angles located just above the first which has been uncoupled. The angles also fall towards the ground 54 by superimposing themselves on the previous uncoupled angles. The sets of four angles are thus uncoupled until the last and all the angles are released while remaining gathered on the four rods. They can thus, before being easily retrieved, retain the panels sufficiently to prevent them from falling before completely releasing them, whereas, in the prior art, panels and angles fell on the ground in a completely random manner and risked even, in their fall, to injure the workers present.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The present invention relates to form clamps. The form clamp 1 according to the invention is characterised essentially by the fact that it comprises two, a first 2 and a second 3, branches forming a dihedron 4 of salient angle 12 (not zero) and with ridge 5, a third branch 6 integral with the other two branches, and a through-hole 7 formed in the third branch along an axis 8 substantially parallel to the ridge of the dihedron. The invention also relates to a method for producing forms by means of this clamp. Application, in particular, to the production of forms for erecting structures made of cast concrete, such as posts, pylons or the like. <IMAGE>

Description

La présente invention concerne les cornières pour coffrages, et plus particulièrement celles qui permettent de réaliser des coffrages servant de moules au béton pour la fabrication de poteaux, pylônes ou analogues. Elle intéresse également un procédé de réalisation de coffrages à l'aide de cornières de ce type.The present invention relates to angles for formwork, and more particularly those which make it possible to form formwork serving as concrete molds for the manufacture of posts, pylons or the like. It also concerns a process for producing formwork using angles of this type.

Il est déjà connu des cornières qui permettent de réaliser des coffrages servant de moules pour la fabrication de pièces en béton, notamment de forme sensiblement parallélépipédique. De telles cornières sont essentiellement constituées de deux branches formant un dièdre à angle saillant, par exemple en équerre, et de moyens de maintien ou d'accrochage de ces deux branches avec tout un ensemble d'autres éléments les plus divers.Angles are already known which make it possible to form forms serving as molds for the production of concrete parts, in particular of substantially parallelepiped shape. Such angles are essentially made up of two branches forming a dihedral with a salient angle, for example at an angle, and means for holding or hooking these two branches with a whole set of other most diverse elements.

L'utilisation d'au moins trois de ces cornières et d'au moins trois planches permet de réaliser un coffrage de forme prismatique en disposant les planches contre les branches des cornières, leurs bords se joignant suivant les arêtes des dièdres définis par ces branches, et en entourant d'un cerclage l'ensemble cornières-planches de façon à les maintenir étroitement serrées, définissant de ce fait un espace sensiblement prismatique à base triangulaire, rectangulaire, carrée, etc. selon le nombre de cornières et de planches utilisé, dans lequel peut être coulé du béton pour constituer, par exemple, un poteau ou analogue.The use of at least three of these angles and at least three boards makes it possible to form a prismatic formwork by arranging the boards against the branches of the angles, their edges joining along the edges of the dihedra defined by these branches, and by surrounding with a hoop the angle-plank assembly so as to keep them tightly tight, thereby defining a substantially prismatic space with a triangular, rectangular, square base, etc. depending on the number of angles and boards used, in which concrete can be poured to constitute, for example, a post or the like.

Cette technique permet d'obtenir le résultat souhaité, mais présente néanmoins des inconvénients. En effet, pour la réalisation du coffrage, les ouvriers éprouvent des difficultés pour maintenir en forme l'ensemble cornières-planches avant qu'il ne soit cerclé, surtout dans le cas d'un coffrage de grande longueur, ainsi que pour mettre en place le cerclage. Un autre inconvénient se présente lors du démontage des coffrages : pour effectuer cette opération, il faut libérer les cornières et les planches en enlevant les cerclages, et il s'en suit que ces éléments tombent tous à la fois, à moins qu'il n'ait été prévu un nombre suffisant d'ouvriers pour les retenir. En conséquence, la mise en oeuvre de la technique décrite ci-dessus, aussi bien pour la réalisation des coffrages que pour leur démontage, demande une main d'oeuvre relativement nombreuse et un temps de travail assez important, ce qui contribue à augmenter le prix de revient des constructions effectuées avec des coffrages réalisés selon cette technique.This technique makes it possible to obtain the desired result, but nevertheless has drawbacks. Indeed, for the realization of the formwork, the workers find it difficult to keep in shape the whole angle angles-boards before it is circled, especially in the case of a formwork of great length, as well as to set up the strapping. Another disadvantage arises during the dismantling of the forms: to carry out this operation, it is necessary to free the angles and the boards by removing the straps, and it follows that these elements all fall at once, unless it n A sufficient number of workers have been provided to retain them. Consequently, the implementation of the technique described above, both for the production of the formwork and for its dismantling, requires a relatively large workforce and a fairly long working time, which contributes to increasing the price. cost of constructions made with formwork made using this technique.

La présente invention a ainsi pour but de réaliser une cornière pour coffrage qui permette de pallier les inconvénients de celles de l'art antérieur telles que décrites ci-dessus et qui facilite la réalisation des coffrages de même que leur démontage.The present invention thus aims to achieve a formwork angle which allows to overcome the drawbacks of those of the prior art as described above and which facilitates the production of forms as well as their disassembly.

Plus précisément, la présente invention a pour objet une cornière pour coffrage, comportant deux première et deuxième branches formant un dièdre d'angle saillant non nul, une troisième branche solidaire d'au moins l'une des deux autres dites branches et une percée traversante réalisée dans ladite troisième branche, caractérisée par le fait que l'axe de ladite percée est sensiblement parallèle à l'arête du dièdre défini par les première et deuxième branches.More specifically, the present invention relates to a formwork angle, comprising two first and second branches forming a dihedral of non-zero projecting angle, a third branch integral with at least one of the other two said branches and a through hole produced in said third branch, characterized in that the axis of said breakthrough is substantially parallel to the edge of the dihedral defined by the first and second branches.

D'autres caractéristiques et avantages de la présente invention apparaîtront au cours de la description suivante donnée en regard des dessins annexés à titre illustratif mais nullement limitatif dans lesquels :

  • Les figures 1 à 3 représentent trois vues respectivement de face, de dessus et de côté d'un mode de réalisation préférentiel d'une cornière pour coffrage selon l'invention, et
  • Les figures 4 et 5 représentent deux vues respectivement de dessus et de face d'un mode de mise en oeuvre possible du procédé de montage d'un coffrage selon l'invention à l'aide des cornières des figures 1 à 3, permettant de mettre en évidence les avantages de ces dernières.
Other characteristics and advantages of the present invention will appear during the following description given with reference to the drawings annexed by way of illustration but in no way limitative in which:
  • FIGS. 1 to 3 represent three views respectively from the front, from above and from the side of a preferred embodiment of an angle for formwork according to the invention, and
  • Figures 4 and 5 show two views respectively from above and from the front of a possible embodiment of the method of mounting a formwork according to the invention using the angles of Figures 1 to 3, allowing to put highlight the benefits of these.

Il est tout d'abord précisé que les figures ne représentent qu'un seul mode de réalisation d'une cornière pour coffrage selon l'invention. En conséquence, les mêmes références y désignent les mêmes éléments, quelle que soit la figure sur laquelle elles apparaissent et quelle que soit la forme de représentation des éléments qu'elles désignent.It is firstly specified that the figures represent only one embodiment of an angle for formwork according to the invention. Consequently, the same references designate the same elements there, whatever the figure on which they appear and whatever the form of representation of the elements which they designate.

Les figures 1 à 3 représentent trois vues respectivement de face, de dessus et de côté d'un mode de réalisation préférentiel d'une cornière pour coffrage selon l'invention.Figures 1 to 3 show three respectively front, top and side views of a preferred embodiment of an angle for formwork according to the invention.

Cette cornière pour coffrage 1 comporte deux première 2 et deuxième 3 branches formant un dièdre 4 d'angle saillant non nul 12 et se coupant suivant l'arête 5 du dièdre.This formwork angle 1 has two first 2 and second 3 branches forming a dihedral 4 with a non-zero salient angle 12 and intersecting along the edge 5 of the dihedral.

Ces deux branches 2 et 3 sont de forme générale plane et forment un angle différent d'un angle plan. Dans le mode de réalisation illustré sur les figures, cet angle est égal à quatre-vingt-dix degrés, ce qui permet de réaliser, comme cela sera explicité ci-après, des coffrages pour la construction de poteaux, poutres ou analogues de forme parallélépipédique rectangle.These two branches 2 and 3 are generally planar and form an angle different from a plane angle. In the embodiment illustrated in the figures, this angle is equal to ninety degrees, which allows to produce, as will be explained below, formwork for the construction of posts, beams or the like in a rectangular parallelepiped shape.

Cette cornière 1 comprend en outre une troisième branche 6 solidaire d'au moins l'une des deux autres branches 2 et 3 et une percée traversante 7 réalisée dans cette troisième branche 6 de façon que son axe 8 soit sensiblement parallèle à l'arête 5 du dièdre 4. Dans le mode de réalisation avantageux de cette cornière 1 tel qu'illustré, la troisième branche 6 est située dans le plan bissecteur 9 du dièdre 4 et elle est donc solidaire des deux autres branches 2 et 3, dans leurs parties 10 qui se rejoignent au niveau de l'arête 5. Cette troisième branche 6 est située dans l'angle rentrant 11 défini par le dièdre 4 de façon à permettre la mise en place du lien de cerclage mentionné ci-après.This angle iron 1 further comprises a third branch 6 secured to at least one of the other two branches 2 and 3 and a through hole 7 made in this third branch 6 so that its axis 8 is substantially parallel to the edge 5 of the dihedral 4. In the advantageous embodiment of this angle 1 as illustrated, the third branch 6 is located in the bisector plane 9 of the dihedral 4 and it is therefore integral with the other two branches 2 and 3, in their parts 10 which meet at the edge 5. This third branch 6 is located in the re-entrant angle 11 defined by the dihedral 4 so as to allow the establishment of the strapping link mentioned below.

Avantageusement, la percée traversante 7 est réalisée dans la troisième branche 6 en sa seconde extrémité 18 opposée à la première 17 qui est liée aux deux branches 2 et 3, et la face externe 19 de la seconde extrémité 18 de la troisième branche 6 est avantageusement courbe pour faciliter le passage et le maintien du lien de cerclage.Advantageously, the through hole 7 is made in the third branch 6 at its second end 18 opposite the first 17 which is linked to the two branches 2 and 3, and the external face 19 of the second end 18 of the third branch 6 is advantageously curve to facilitate the passage and maintenance of the strapping link.

Dans le but de permettre d'obtenir plus facilement les résultats qui seront explicités ci-après, la cornière pour coffrage 1 selon l'invention comporte en outre des moyens de fixation 20 d'une entretoise sur au moins l'une des première 2 et deuxième 3 branches, et avantageusement sur les deux comme dans le mode de réalisation illustré sur les figures.In order to make it easier to obtain the results which will be explained below, the formwork angle 1 according to the invention further comprises means 20 for fixing a spacer on at least one of the first 2 and second 3 branches, and advantageously on both as in the embodiment illustrated in the figures.

Ces moyens de fixation 20 d'une entretoise sur au moins l'une des deux branches 2, 3 sont avantageusement constitués par un téton 21 solidaire d'une face de la branche 2 ou 3 sur laquelle devra être fixée l'entretoise et par un orifice 22 avantageusement taraudé réalisé dans ce téton.These fastening means 20 of a spacer on at least one of the two branches 2, 3 are advantageously constituted by a stud 21 integral with one face of the branch 2 or 3 on which the spacer must be fixed and by a orifice 22 advantageously tapped made in this stud.

Les cornières illustrées et décrites en regard des figures 1 à 3 permettent de réaliser des coffrages pour couler, par exemple, des poteaux pleins de forme parallélépipédique rectangle et sont particulièrement avantageuses pour le coulage de tels poteaux en position verticale, à l'endroit même où ils doivent être mis en place. Le mode de réalisation d'un coffrage pour la réalisation d'un tel poteau à l'aide de cornières selon l'invention est décrit ci-après en regard des figures 4 et 5.The angles illustrated and described with reference to FIGS. 1 to 3 make it possible to produce formwork for pouring, for example, full posts of rectangular parallelepiped shape and are particularly advantageous for casting such posts in a vertical position, at the same place where they must be in place. The embodiment of a formwork for the production of such a post using angles according to the invention is described below with reference to FIGS. 4 and 5.

On assemble d'abord quatre panneaux 31, 32, 33, 34 pour former un parallélépipède rectangle vertical 35 de façon que leurs bords soient avantageusement au contact les uns des autres, par exemple par la face 36 de l'un et la tranche 37 de l'autre. Ces panneaux sont maintenus temporairement dans cette position par tous moyens. Ensuite, des ensembles de quatre cornières 101-104 sont placés dans des plans 41, 42, 43, ... régulièrement espacés les uns des autres, comme illustré sur la figure 5, pour que chaque cornière épouse les coins des panneaux en contact. Chaque ensemble de quatre cornières 101-104 est encerclé par un lien 44 qui passe sur la face externe courbe 19 de la seconde extrémité 18 de chaque troisième branche. Un tel lien peut par exemple être constitué par un feuillard métallique relativement souple mais solide et permet de bien maintenir les cornières sur les coins des panneaux en contact et contre les panneaux, et de former l'espace parallélépipédique 35 voulu, comme cela apparaît sur les figures 4 et 5.First, four panels 31, 32, 33, 34 are assembled to form a vertical rectangular parallelepiped 35 so that their edges are advantageously in contact with one another, for example by the face 36 of one and the edge 37 of the other. These panels are temporarily held in this position by any means. Then, sets of four angles 101-104 are placed in planes 41, 42, 43, ... regularly spaced from each other, as illustrated in Figure 5, so that each angle follows the corners of the panels in contact. Each set of four angles 101-104 is surrounded by a link 44 which passes over the curved external face 19 of the second end 18 of each third branch. Such a link can for example be constituted by a relatively flexible but solid metal strip and allows the angles to be well maintained on the corners of the panels in contact and against the panels, and to form the desired parallelepiped space 35, as appears on the Figures 4 and 5.

Pour que les ensembles de quatre cornières 101-104 restent espacés les uns des autres en toute sécurité, des entretoises 46, 47 ..., comme des plaques ou analogues, peuvent être disposées entre deux cornières 201-202, 202-203, ... dont les arêtes sont alignées, les deux extrémités 48, 49 d'une plaque d'entretoise 46, 47, ... étant respectivement maintenues, par exemple par vissage, sur un téton 21.To keep the sets of four angles 101-104 securely spaced from each other, spacers 46, 47 ..., such as plates or the like, can be arranged between two angles 201-202, 202-203,. .. the edges of which are aligned, the two ends 48, 49 of a spacer plate 46, 47, ... being respectively held, for example by screwing, on a stud 21.

Quand le coffrage est terminé comme décrit ci-dessus, il peut être si nécessaire transporté sans problème jusqu'à l'endroit où doit être coulé le poteau, puisqu'il est parfaitement rigide grâce à la pose du cerclage et éventuellement des entretoises. Cependant, si le transport risque malgré tout de présenter un danger pour la cohésion des différents éléments du coffrage et engendrer un déplacement des cornières, par sécurité, quatre tiges 50, 51 ... sont enfichées dans les percées 201, 202, 203, ... alignées sur un même axe 52, 53, ... Cette précaution permet de renforcer la rigidité du coffrage pour son transport et présente également un intérêt pour son démontage, comme décrit ci-après.When the formwork is finished as described above, it can be if necessary transported without problem to the place where the post is to be poured, since it is perfectly rigid thanks to the installation of the strapping and possibly spacers. However, if the transport risks nevertheless presenting a danger for the cohesion of the different elements of the formwork and causing a displacement of the angles, for safety, four rods 50, 51 ... are inserted in the holes 201, 202, 203,. .. aligned on the same axis 52, 53, ... This precaution makes it possible to reinforce the rigidity of the formwork for its transport and is also of interest for its dismantling, as described below.

Quand le béton ou ciment a été coulé dans le coffrage et a durci, il faut en effet procéder au décoffrage du poteau ou analogue qui a été réalisé. Cette opération est effectuée sans problème, éventuellement même par un seul ouvrier. En effet, il suffit à celui-ci, si les tiges 50, 51, ... n'avaient pas été enfichées dans les percées lors de la réalisation du coffrage, de les mettre en place comme indiqué ci-avant, puis d'enlever le cerclage de l'ensemble de quatre cornières qui se trouve le plus près du sol. De ce fait, les cornières 101-104 ne sont plus plaquées contre les panneaux et tombent d'elles-mêmes sous l'effet de leur propre poids en glissant le long des tiges 50, 51, ... dont la longueur a été déterminée pour que les cornières arrivent sensiblement jusqu'au sol 54 en étant guidées, c'est-à-dire en toute sécurité pour les personnes se trouvant aux alentours. L'ouvrier continue son travail en enlevant le cerclage de l'ensemble de quatre cornières se trouvant juste au-dessus du premier qui a été décerclé. Les cornières tombent elles aussi vers le sol 54 en se superposant aux cornières décerclées précédentes. Les ensembles de quatre cornières sont ainsi décerclés jusqu'au dernier et toutes les cornières sont libérées tout en restant rassemblées sur les quatre tiges. Elles peuvent ainsi, avant d'être facilement récupérées, retenir suffisamment les panneaux pour les empêcher de tomber avant de les libérer totalement, alors que, dans l'art antérieur, panneaux et cornières chutaient sur le sol de façon tout à fait aléatoire et risquaient même, dans leur chute, de blesser les ouvriers présents.When the concrete or cement has been poured into the formwork and has hardened, it is in fact necessary to take the formwork off the post or the like which has been produced. This operation is carried out without problem, possibly even by a single worker. Indeed, it suffices for the latter, if the rods 50, 51, ... had not been inserted in the holes during the production of the formwork, to put them in place as indicated above, then to remove the strapping from the set of four angles which is closest to the ground. As a result, the angles 101-104 are no longer pressed against the panels and fall by themselves under the effect of their own weight by sliding along the rods 50, 51, ... the length of which has been determined. so that the angles reach substantially to the ground 54 while being guided, that is to say in complete safety for the people in the vicinity. The worker continues his work by removing the strapping from the set of four angles located just above the first which has been uncoupled. The angles also fall towards the ground 54 by superimposing themselves on the previous uncoupled angles. The sets of four angles are thus uncoupled until the last and all the angles are released while remaining gathered on the four rods. They can thus, before being easily retrieved, retain the panels sufficiently to prevent them from falling before completely releasing them, whereas, in the prior art, panels and angles fell on the ground in a completely random manner and risked even, in their fall, to injure the workers present.

A la description ci-dessus d'un mode de réalisation avantageux du procédé de coffrage avec les cornières de l'invention, on constate que celles-ci permettent de procéder à la construction de coffrages et à leur démontage avec un minimum de personnel, tout en facilitant le travail des ouvriers et en améliorant leur sécurité, et donc de diminuer le prix de revient des constructions obtenues avec ces coffrages.In the above description of an advantageous embodiment of the formwork process with the angles of the invention, it can be seen that these make it possible to proceed with the construction of formworks and their dismantling with a minimum of personnel, all by facilitating the work of the workers and by improving their safety, and therefore to reduce the cost price of the constructions obtained with these forms.

Claims (10)

Cornière pour coffrage, comportant deux première (2) et deuxième (3) branches formant un dièdre (4) d'angle saillant non nul (12), une troisième branche (6) solidaire d'au moins l'une des deux autres dites branches (2, 3) et une percée traversante (7) réalisée dans ladite troisième branche, caractérisée par le fait que l'axe (8) de ladite percée traversante (7) est sensiblement parallèle à l'arête (5) dudit dièdre (4).Formwork angle, comprising two first (2) and second (3) branches forming a dihedral (4) of non-zero projecting angle (12), a third branch (6) integral with at least one of the other two said branches (2, 3) and a through hole (7) made in said third branch, characterized in that the axis (8) of said through hole (7) is substantially parallel to the edge (5) of said dihedral ( 4). Cornière selon la Revendication 1, caractérisée par le fait que ladite troisième branche (6) est située dans le plan bissecteur (9) dudit dièdre.Angle according to Claim 1, characterized in that said third branch (6) is located in the bisector plane (9) of said dihedral. Cornière selon l'une des Revendications 1 et 2, caractérisée par le fait que ladite troisième branche est située dans l'angle rentrant (11) formé par les deux première (2) et deuxième (3) branches qui définissent ledit dièdre.Corner according to one of Claims 1 and 2, characterized in that the said third branch is located in the re-entrant angle (11) formed by the two first (2) and second (3) branches which define the said dihedral. Cornière selon l'une des Revendications 1 à 3, caractérisée par le fait que ladite troisième branche est liée auxdites première (2) et deuxième (3) branches par une extrémité (17), la face externe (19) de l'extrémité opposée (18) étant courbe.Edge protecting border according to one of Claims 1 to 3, characterized in that said third part is bonded to said first (2) and second (3) limbs by one end (17), the outer face (19) of the opposite end (18) being curved. Cornière selon l'une des Revendications 1 à 4, caractérisée par le fait qu 'elle comporte en outre des moyens de fixation (20) d'une entretoise (46, 47) sur au moins l'une des deux première et deuxième branches (2, 3).Edge protecting border according to one of Claims 1 to 4, characterized in that it further comprises fastening means (20) of a spacer (46, 47) on at least one of the two first and second legs ( 2, 3). Cornière selon la Revendication 5, caractérisée par le fait que les moyens (20) de fixation d'une entretoise sur au moins l'une des deux première et deuxième branches comportent un téton (21) solidaire d'une face de l'une des deux dites première et deuxième branches, et un orifice (22) réalisé dans ledit téton.Angle according to Claim 5, characterized in that the means (20) for fixing a spacer on at least one of the first and second branches comprise a stud (21) integral with one face of one of the two said first and second branches, and an orifice (22) made in said stud. Cornière selon la Revendication 6, caractérisée par le fait que ledit orifice (22) est taraudé.Angle according to Claim 6, characterized in that the said orifice (22) is tapped. Cornière selon l'une des Revendications 1 à 7, caractérisée par le fait que l'angle saillant (12) dudit dièdre (4) est égal à quatre-vingt-dix degrés.Angle according to one of Claims 1 to 7, characterized in that the projecting angle (12) of said dihedral (4) is equal to ninety degrees. Procédé de réalisation d'un coffrage au moyen d'une cornière selon l'une des Revendications 1 à 8, caractérisé par le fait qu'il consiste: * à disposer des ensembles de cornières (101-104) dans des plans (41, 42, 43,...) régulièrement espacés les uns des autres, * à assembler des panneaux (31-34) de telle sorte que lesdites cornières épousent les coins des panneaux en contact, * à encercler chaque ensemble de cornières au moyen d'un lien (44), et * à enficher des liens (50, 51,...) dans les percées traversantes (201, 202, 203,...) desdites cornières, situées sur un même axe (52, 53,...), de manière à relier les cornières de chacun desdits plans espacés. Method for producing a formwork by means of an angle according to one of Claims 1 to 8, characterized in that it consists: * to have sets of angles (101-104) in planes (41, 42, 43, ...) regularly spaced from each other, * to assemble panels (31-34) so that said angles follow the corners of the panels in contact, * to encircle each set of angles using a link (44), and * to insert links (50, 51, ...) in the through holes (201, 202, 203, ...) of said angles, located on the same axis (52, 53, ...), so as to connect the angles of each of said spaced planes. Procédé selon la Revendication 9, caractérisé par le fait qu'il consiste en outre à disposer des entretoises (46, 47,...) entre les cornières de chacun desdits plans espacés.A method according to Claim 9, characterized in that it further consists in having spacers (46, 47, ...) between the angles of each of said spaced planes.
EP93401312A 1992-05-22 1993-05-21 Formclamp and method for realising a form with such clamp Withdrawn EP0593316A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206452 1992-05-22
FR9206452A FR2691494A1 (en) 1992-05-22 1992-05-22 Angle for formwork.

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EP0593316A1 true EP0593316A1 (en) 1994-04-20

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EP93401312A Withdrawn EP0593316A1 (en) 1992-05-22 1993-05-21 Formclamp and method for realising a form with such clamp

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EP (1) EP0593316A1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1550780A2 (en) * 2003-12-30 2005-07-06 OMNIA Srl Forming device for concrete casts

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE658090A (en) *
FR1151968A (en) * 1956-06-29 1958-02-07 S V B I Julien Ginsburger Belt for concrete pillar and beam formwork
US3591124A (en) * 1967-08-11 1971-07-06 Andrew Robert Haslett Integral prestressed structural concrete column form
US3617047A (en) * 1970-06-08 1971-11-02 Burke Concrete Accessories Concrete column form clamp and method
EP0371899A1 (en) * 1988-10-17 1990-06-06 SàRL CECAM Form for making concrete or cement piles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE658090A (en) *
FR1151968A (en) * 1956-06-29 1958-02-07 S V B I Julien Ginsburger Belt for concrete pillar and beam formwork
US3591124A (en) * 1967-08-11 1971-07-06 Andrew Robert Haslett Integral prestressed structural concrete column form
US3617047A (en) * 1970-06-08 1971-11-02 Burke Concrete Accessories Concrete column form clamp and method
EP0371899A1 (en) * 1988-10-17 1990-06-06 SàRL CECAM Form for making concrete or cement piles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1550780A2 (en) * 2003-12-30 2005-07-06 OMNIA Srl Forming device for concrete casts
EP1550780A3 (en) * 2003-12-30 2006-03-01 OMNIA Srl Forming device for concrete casts

Also Published As

Publication number Publication date
FR2691494A1 (en) 1993-11-26

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