EP2711483A1 - Device for supporting formwork boards - Google Patents

Device for supporting formwork boards Download PDF

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Publication number
EP2711483A1
EP2711483A1 EP12184947.5A EP12184947A EP2711483A1 EP 2711483 A1 EP2711483 A1 EP 2711483A1 EP 12184947 A EP12184947 A EP 12184947A EP 2711483 A1 EP2711483 A1 EP 2711483A1
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EP
European Patent Office
Prior art keywords
fastening means
support device
fitting
support
cam
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Withdrawn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
EP12184947.5A
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German (de)
French (fr)
Inventor
Christophe Montabrun-Ollivier
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BATICHAP
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BATICHAP
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Publication date
Application filed by BATICHAP filed Critical BATICHAP
Priority to EP12184947.5A priority Critical patent/EP2711483A1/en
Publication of EP2711483A1 publication Critical patent/EP2711483A1/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Withdrawn legal-status Critical Current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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/365—Stop-end shutterings
    • 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
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
    • 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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
    • E04G5/045—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on profiles, e.g. I or H profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams

Definitions

  • the present invention relates to a support device boards for formwork on beam.
  • a structure generally consisting of formwork boards arranged on beams forming a mold, to maintain the concrete in place, while waiting for its setting and hardening. Because of the large weight of the concrete, the form boards are usually permanently attached to the joists so that the structure is held securely.
  • the object of the invention is to provide a support device of formwork boards, for securely holding boards on beams, which is removable and can be positioned easily at the desired location.
  • Such a device makes it possible to fix the support fittings supporting the shuttering boards removably at the desired locations on the beams, and to easily build the structure having the shape of the desired concrete structure.
  • the dorsal wall of the fixing means comprises a window and the locking means comprises a cam. positioned above the window, said cam being pivotally mounted relative to the fixing means to be able to bear, through the window, on the holding arm of the fitting and to exert a thrust on the fastening means so as to that the two returns of the fastening means can come to grip the sub-faces of the upper flange of the beam.
  • the use of a cam allows an effective locking and unlocking, very simple to implement, which facilitates the positioning and removal of the fitting for a new use.
  • the fastening means comprises a quadrangular cross section section, made in one piece, having a back wall, two lateral flanks, and two returns leaving between them the longitudinal slot.
  • the window may be formed in the dorsal wall, preferably in a non-emergent way longitudinally.
  • the window if present, is constituted by the space separating the dorsal walls.
  • the connecting means comprises a threaded rod engaged in openings formed vis-à-vis in wings projecting upwardly from the back wall of each element, and a clamping member cooperating with said rod threaded.
  • the cam is preferably pivotally mounted in the longitudinal direction of the fastening means which limits the size of the device.
  • the cam is typically connected to a lever for pivoting and coming the cam bearing on the holding arm, which simplifies the actuation of the cam by a user and allows a quick lock or unlock.
  • the back wall comprises at least one threaded hole and the locking means comprises at least one screw which engages in the or each threaded hole to exert a thrust on the fastening means so that that the returns of the fastening means can come close to the underside of the upper flange of the beam.
  • This embodiment is also simple and quick to implement and makes it possible to change the location of the fitting very easily.
  • the bracket of the bracket comprises two side edges that can be flanked by the upper flange of the beam which allows the centering of the fitting on the beam for quick attachment with the locking member.
  • the support branch of the fitting comprises means for fixing an accessory such as a safety barrier or a strut.
  • the forestay can in particular allow to position a new beam and form for example a new formwork to a higher level.
  • the support branch and the support branch of the support fitting together have an L-shaped shape which makes it possible to form a concrete structure whose side walls delimited by the formwork boards are orthogonal to the main surface of the structure.
  • the figure 1 is a schematic perspective view of the support device applied to a beam according to a first embodiment of the invention
  • the figure 2 is a view similar to the figure 1 , in cross section;
  • the figure 3 is a schematic perspective view of the support device according to a second embodiment of the invention.
  • the figure 4 is a view similar to the figure 3 , in cross section.
  • the support device 1 comprises an L-shaped support fitting 2 comprising a support branch 3 designed to receive a formwork board and a holding branch 4 intended to rest on an upper flange 5 of a beam. 6 in the form of I.
  • the beam 6 on which the support device 1 is capable of being applied has a vertical core 7, an upper wing 5, provided with two sub-faces 8, and a lower wing 9.
  • the holding leg 4 of the fitting 2 comprises two lateral edges 11 which can be positioned on either side of the upper flange 5 of the beam 6 so as to facilitate its centering.
  • the support device 1 also comprises a locking member 12 designed to removably fix the holding branch 4 of the fitting 2 on the upper flange 5 of the beam 6.
  • the locking member 12 comprises firstly fastening means 13.
  • the fastening means consists of a profile 13 whose quadrangular cross section corresponds to the cross section of the beam 6.
  • the profile 13 comprises a dorsal wall 14 and a longitudinal slot 15 lined with two returns 16 opposite to the back wall 14 ( figure 2 ).
  • the profile 13 can thus engage on the upper flange 5 of the beam 6 while being superimposed on the holding arm 4 of the fitting 2.
  • the profile 13 is made in one piece. It comprises a dorsal wall 14, two substantially vertical lateral flanks 20 in the use position, which project from the lateral edges of the back wall 14 downwards, and two returns 16 which project each from the lower end of the dorsal wall 14. a flank 20 in the direction of the opposite side 20, the returns 16 leaving between them the longitudinal slot 15.
  • the locking member 12 also comprises a locking means which bears on the holding arm 4 so as to exert a thrust on the profile 13 so that the returns 16 bordering the longitudinal slot 15 of the profile 13 can come to grip the sub-elements. faces 8 of the upper flange 5 of the beam 6.
  • This locking means consists of a cam 17 pivotally mounted relative to the profile 13 to bear against the holding arm 4 of the fitting 2, through a window 18 formed in the profile 13, so as to exert a thrust on the profile 13.
  • the cam 17 is connected to a lever 19 which makes it possible to actuate the pivoting of the cam 17 so as to exert the thrust on the profile 13 ( figure 1 ).
  • the cam 17 is pivotally mounted in the longitudinal direction of the profile 13 to limit the size of the device 1.
  • the locking means is a screw which engages in a threaded hole formed in the profile 13 in order to exert a thrust on the profile 13 so that the two returns 16, bordering the longitudinal slot 15 of the profile 13, come to grip the sub-faces 8 of the upper flange 5 of the beam 6.
  • the support branch 3 of the support fitting 2 also comprises means for attaching an accessory such as a safety barrier or a strut allowing an assembly with another beam 6 of for example to form a new concrete structure at a higher level.
  • the holding branch 4 of the support fitting 2 is first fitted on the upper flange 5 of the beam 6 so that the support leg 3 is placed where the formwork board is to be maintained.
  • the profile 13 is then slid along the flange 5, following the engagement of the longitudinal slot 15 of the profile 13 at the end of the web of the beam 6, to be superimposed on the branch of 4.
  • the lever 19 of the cam 17 is moved in the direction of the support leg 3 so that the cam 17 bears, through the window 18 formed in the profile 13, against the holding arm 4 of the fitting 2.
  • the lever 19 of the cam 17 is moved towards the holding arm 4 so that the cam 17 releases the pressure exerted against the holding arm 4 through the window 18 of the profile 13.
  • the two returns 16 bordering the longitudinal slot 15 of the section 13 then depart from the sub-faces 8 of the flange 5 of the beam 6, unlocking the attachment of the fitting 2.
  • the profile 13 is then removed by a movement sliding along the wing 5 to the end of the beam 6, thus releasing the fitting 2 for a new use.
  • the fastening means 13 comprises two separate elements 13a, 13b, and a connecting means 21 removable and adjustable of these two distinct elements.
  • Each element 13a, 13b is preferably made in one piece and comprises, in the position of use: a lateral flank 20a, 20b substantially vertical, a dorsal wall 14a, 14b protruding from the upper end of the lateral flank 20a, 20b towards the element 13b, 13a opposite, and a return 16a, 16b protruding from the lower end of the side flank 20a, 20b towards the element 13b, 13a opposite.
  • the connecting means 21 comprises firstly a threaded rod 22 engaged in orifices 23 formed vis-a-vis in wings 24a, 24b protruding upwardly from the back wall 14a, 14b of each element13a, 13b. As illustrated on figures 3 and 4 , the threaded rod 22 is further engaged in the cam 17 and is its transverse pivot axis.
  • the connecting means 21 also comprises a clamping member 25 cooperating with said threaded rod 21. More specifically, a wing nut 25 is provided on either side of the wings 24a, 24b, with the interposition of a sleeve 26. The nuts 25 allow to move transversely the elements 13a, 13b forming the fastening means 13, so that these elements 13a, 13b clamp together the beam 6.
  • a spring 27 is placed on each side of the cam 17, and bears on the one hand on a wing 24a, 24b and on the other hand on a plate 28a, 28b adjacent to the cam 17.
  • the invention is not limited to the embodiments of this support device 1 described above as an example, it encompasses all variants.

Abstract

The device (1) has a support fitting (2) comprising a support branch (3) arranged to receive a poling board. A locking body (12) comprises fixing units (13) including a dorsal wall (14) and a longitudinal slot (15) bordered of return elements (16). The body is engaged on a beam (6) such that a maintenance branch (4) of the fitting is inserted between the dorsal wall of the fixing units and the beam. Locking units take support on the maintenance branch of the fitting to exert a push on the fixing units such that the return elements enclose under-faces (8) of an upper wing (5) of the beam.

Description

La présente invention a pour objet un dispositif d'appui de planches pour coffrage sur poutrelle.The present invention relates to a support device boards for formwork on beam.

Pour couler le béton d'un ouvrage, il est nécessaire d'utiliser une structure, généralement constituée de planches de coffrage disposées sur des poutrelles formant un moule, permettant de maintenir le béton en place, en attendant sa prise et son durcissement. Étant donné le poids important du béton, les planches de coffrage sont généralement fixées de façon définitives aux poutrelles de sorte à maintenir solidement la structure.To pour the concrete of a structure, it is necessary to use a structure, generally consisting of formwork boards arranged on beams forming a mold, to maintain the concrete in place, while waiting for its setting and hardening. Because of the large weight of the concrete, the form boards are usually permanently attached to the joists so that the structure is held securely.

Le but de l'invention est de fournir un dispositif d'appui de planches de coffrage, permettant de maintenir solidement des planches sur des poutrelles, qui soit amovible et qui puisse se positionner avec facilité à l'endroit souhaité.The object of the invention is to provide a support device of formwork boards, for securely holding boards on beams, which is removable and can be positioned easily at the desired location.

A cet effet, la présente invention propose un dispositif d'appui de planches pour coffrage sur poutrelle comprenant une âme verticale et deux ailes présentant ensemble une forme de I, le dispositif comprenant :

  • une ferrure d'appui comportant une branche de soutien conçue pour recevoir une planche de coffrage et une branche de maintien conçue pour venir reposer sur l'aile supérieure de la poutrelle ;
  • un organe de verrouillage comportant :
    • ○ un moyen de fixation comprenant une paroi dorsale et une fente longitudinale bordée de deux retours du coté opposé à la paroi dorsale, destiné à s'engager sur la poutrelle de sorte à ce que la branche de maintien de la ferrure puisse être insérée entre la paroi dorsale du moyen de fixation et la poutrelle, et
    • ○ un moyen de verrouillage pouvant prendre appui sur la branche de maintien de la ferrure pour exercer une poussée sur le moyen de fixation de sorte à ce que les retours puissent venir enserrer les sous-faces de l'aile supérieure de la poutrelle.
For this purpose, the present invention proposes a support device for boards for formwork on a beam comprising a vertical core and two wings together having a shape of I, the device comprising:
  • a support fitting comprising a support branch adapted to receive a formwork board and a holding branch designed to rest on the upper flange of the beam;
  • a locking member comprising:
    • A fastening means comprising a back wall and a longitudinal slot lined with two returns on the side opposite to the back wall, intended to engage the beam so that the bracket of the bracket can be inserted between the dorsal wall of the fastening means and the beam, and
    • ○ a locking means that can bear on the holding arm of the fitting to exert a thrust on the fastening means so that the returns can come close to the underside of the upper flange of the beam.

Un tel dispositif permet de fixer les ferrures d'appui soutenant les planches de coffrage, de façon amovible, aux endroits souhaités sur les poutrelles, et de facilement construire la structure ayant la forme de l'ouvrage de béton souhaitée.Such a device makes it possible to fix the support fittings supporting the shuttering boards removably at the desired locations on the beams, and to easily build the structure having the shape of the desired concrete structure.

Dans une variante de réalisation la paroi dorsale du moyen de fixation comporte une fenêtre et le moyen de verrouillage comprend une came positionnée en surplomb de la fenêtre, ladite came étant montée en pivot par rapport au moyen de fixation pour pouvoir venir en appui, à travers la fenêtre, sur la branche de maintien de la ferrure et exercer une poussée sur le moyen de fixation de sorte à ce que les deux retours du moyen de fixation puissent venir enserrer les sous-faces de l'aile supérieure de la poutrelle. L'utilisation d'une came permet un verrouillage et un déverrouillage efficaces, très simples à mettre en oeuvre, ce qui facilite le positionnement puis le retrait de la ferrure pour une nouvelle utilisation.In an alternative embodiment, the dorsal wall of the fixing means comprises a window and the locking means comprises a cam. positioned above the window, said cam being pivotally mounted relative to the fixing means to be able to bear, through the window, on the holding arm of the fitting and to exert a thrust on the fastening means so as to that the two returns of the fastening means can come to grip the sub-faces of the upper flange of the beam. The use of a cam allows an effective locking and unlocking, very simple to implement, which facilitates the positioning and removal of the fitting for a new use.

Selon un premier mode de réalisation, le moyen de fixation comprend un profilé de section transversale quadrangulaire, réalisé d'une seule pièce, possédant une paroi dorsale, deux flancs latéraux, et deux retours ménageant entre eux la fente longitudinale. La fenêtre peut être ménagée dans la paroi dorsale, de préférence de façon non débouchante longitudinalement.According to a first embodiment, the fastening means comprises a quadrangular cross section section, made in one piece, having a back wall, two lateral flanks, and two returns leaving between them the longitudinal slot. The window may be formed in the dorsal wall, preferably in a non-emergent way longitudinally.

Selon un deuxième mode de réalisation, le moyen de fixation comprend :

  • deux éléments distincts qui comportent chacun, en position d'utilisation : un flanc latéral ; une paroi dorsale faisant saillie de l'extrémité supérieure du flanc latéral en direction de l'élément opposé ; et un retour faisant saillie de l'extrémité inférieure du flanc latéral en direction de l'élément opposé ;
  • un moyen de liaison amovible et réglable des deux éléments distincts.
According to a second embodiment, the fixing means comprises:
  • two distinct elements which each comprise, in the position of use: a lateral flank; a dorsal wall projecting from the upper end of the lateral flank towards the opposite element; and a return projecting from the lower end of the lateral flank towards the opposite element;
  • a removable and adjustable connection means of the two distinct elements.

Dans ce mode de réalisation, la fenêtre, si elle est présente, est constituée par l'espace séparant les parois dorsales.In this embodiment, the window, if present, is constituted by the space separating the dorsal walls.

Le fait de réaliser le moyen de fixation en deux parties distinctes permet de réaliser, en plus, un serrage transversal. Ceci permet une meilleure fixation du dispositif d'appui sur la poutrelle, mais permet également de compenser les tolérances très larges sur la dimension transversale des poutrelles.The fact of making the fastening means in two separate parts makes it possible, in addition, a transverse clamping. This allows a better attachment of the support device on the beam, but also makes it possible to compensate for the very wide tolerances on the transverse dimension of the beams.

On peut prévoir que le moyen de liaison comprenne une tige filetée engagée dans des orifices ménagés en vis-à-vis dans des ailes faisant saillie vers le haut depuis la paroi dorsale de chaque élément, ainsi qu'un organe de serrage coopérant avec ladite tige filetée.It can be provided that the connecting means comprises a threaded rod engaged in openings formed vis-à-vis in wings projecting upwardly from the back wall of each element, and a clamping member cooperating with said rod threaded.

La came est de préférence montée en pivot dans la direction longitudinale du moyen de fixation ce qui limite l'encombrement du dispositif.The cam is preferably pivotally mounted in the longitudinal direction of the fastening means which limits the size of the device.

La came est typiquement connectée à un levier permettant de faire pivoter et venir la came en appui sur la branche de maintien, ce qui simplifie l'actionnement de la came par un utilisateur et permet un verrouillage ou un déverrouillage rapide.The cam is typically connected to a lever for pivoting and coming the cam bearing on the holding arm, which simplifies the actuation of the cam by a user and allows a quick lock or unlock.

Dans une autre variante de réalisation, la paroi dorsale comprend au moins un trou fileté et le moyen de verrouillage comprend au moins une vis qui vient s'engager dans le ou chaque trou fileté pour exercer une poussée sur le moyen de fixation de sorte à ce que les retours du moyen de fixation puissent venir enserrer les sous-faces de l'aile supérieure de la poutrelle. Ce mode de réalisation est également simple et rapide à mettre en oeuvre et permet de changer l'emplacement de la ferrure très facilement.In another alternative embodiment, the back wall comprises at least one threaded hole and the locking means comprises at least one screw which engages in the or each threaded hole to exert a thrust on the fastening means so that that the returns of the fastening means can come close to the underside of the upper flange of the beam. This embodiment is also simple and quick to implement and makes it possible to change the location of the fitting very easily.

Avantageusement, la branche de maintien de la ferrure comprend deux bordures latérales pouvant venir encadrer l'aile supérieure de la poutrelle ce qui permet le centrage de la ferrure sur la poutrelle pour une fixation rapide avec l'organe de verrouillage.Advantageously, the bracket of the bracket comprises two side edges that can be flanked by the upper flange of the beam which allows the centering of the fitting on the beam for quick attachment with the locking member.

Selon une possibilité, la branche de soutien de la ferrure comporte des moyens de fixation d'un accessoire tel qu'une barrière de sécurité ou un étai. L'étai peut notamment permettre de positionner une nouvelle poutrelle et de former par exemple un nouveau coffrage à un niveau supérieur.According to one possibility, the support branch of the fitting comprises means for fixing an accessory such as a safety barrier or a strut. The forestay can in particular allow to position a new beam and form for example a new formwork to a higher level.

Suivant une forme de réalisation, la branche de soutien et la branche de maintien de la ferrure d'appui présentent ensemble une forme en L ce qui permet de former un ouvrage en béton dont les parois latérales délimitées par les planches de coffrage sont orthogonales à la surface principale de l'ouvrage.According to one embodiment, the support branch and the support branch of the support fitting together have an L-shaped shape which makes it possible to form a concrete structure whose side walls delimited by the formwork boards are orthogonal to the main surface of the structure.

L'invention sera mieux comprise à l'aide de la description qui suit, en référence aux dessins schématiques annexés représentant le dispositif d'appui sur une poutrelle.The invention will be better understood from the description which follows, with reference to the attached schematic drawings showing the support device on a beam.

La figure 1 est une vue schématique en perspective du dispositif d'appui appliqué sur une poutrelle selon un premier mode réalisation de l'invention ;The figure 1 is a schematic perspective view of the support device applied to a beam according to a first embodiment of the invention;

La figure 2 est une vue similaire à la figure 1, en coupe transversale ;The figure 2 is a view similar to the figure 1 , in cross section;

La figure 3 est une vue schématique en perspective du dispositif d'appui selon un deuxième mode réalisation de l'invention ;The figure 3 is a schematic perspective view of the support device according to a second embodiment of the invention;

La figure 4 est une vue similaire à la figure 3, en coupe transversale.The figure 4 is a view similar to the figure 3 , in cross section.

Selon un premier mode de réalisation représenté sur les figures 1 à 2, le dispositif d'appui 1 comprend une ferrure d'appui 2 en forme de L, comportant une branche de soutien 3 conçue pour recevoir une planche de coffrage et une branche de maintien 4 prévue pour reposer sur une aile supérieure 5 d'une poutrelle 6 en forme de I.According to a first embodiment shown on the Figures 1 to 2 , the support device 1 comprises an L-shaped support fitting 2 comprising a support branch 3 designed to receive a formwork board and a holding branch 4 intended to rest on an upper flange 5 of a beam. 6 in the form of I.

Tel que représenté aux figures 1 et 2 la poutrelle 6 sur laquelle le dispositif d'appui 1 est susceptible d'être appliqué présente une âme verticale 7, une aile supérieure 5, dotée de deux sous-faces 8, et une aile inférieure 9.As represented in figures 1 and 2 the beam 6 on which the support device 1 is capable of being applied has a vertical core 7, an upper wing 5, provided with two sub-faces 8, and a lower wing 9.

La branche de maintien 4 de la ferrure 2 comporte deux bordures latérales 11 qui peuvent venir se positionner de part et d'autre de l'aile supérieure 5 de la poutrelle 6 de sorte à faciliter son centrage.The holding leg 4 of the fitting 2 comprises two lateral edges 11 which can be positioned on either side of the upper flange 5 of the beam 6 so as to facilitate its centering.

Le dispositif d'appui 1 comprend également un organe de verrouillage 12 conçu pour fixer de façon amovible la branche de maintien 4 de la ferrure 2 sur l'aile supérieure 5 de la poutrelle 6. L'organe de verrouillage 12 comprend tout d'abord un moyen de fixation 13.The support device 1 also comprises a locking member 12 designed to removably fix the holding branch 4 of the fitting 2 on the upper flange 5 of the beam 6. The locking member 12 comprises firstly fastening means 13.

Selon le premier mode de réalisation, le moyen de fixation est constitué d'un profilé 13 dont la section transversale quadrangulaire correspond à la section transversale de la poutrelle 6. Le profilé 13 comporte une paroi dorsale 14 et une fente longitudinale 15 bordée de deux retours 16 du coté opposé à la paroi dorsale 14 (figure 2). Le profilé 13 peut ainsi s'engager sur l'aile supérieure 5 de la poutrelle 6 tout en se superposant sur la branche de maintien 4 de la ferrure 2. Le profilé 13 est réalisé d'une seule pièce. Il comprend une paroi dorsale 14, deux flancs latéraux 20 sensiblement verticaux, en position d'utilisation, qui font saillie des bords latéraux de la paroi dorsale 14 vers le bas, et deux retours 16 qui font saillie chacun de l'extrémité inférieure d'un flanc 20 en direction du flanc 20 opposé, les retours 16 ménageant entre eux la fente longitudinale 15.According to the first embodiment, the fastening means consists of a profile 13 whose quadrangular cross section corresponds to the cross section of the beam 6. The profile 13 comprises a dorsal wall 14 and a longitudinal slot 15 lined with two returns 16 opposite to the back wall 14 ( figure 2 ). The profile 13 can thus engage on the upper flange 5 of the beam 6 while being superimposed on the holding arm 4 of the fitting 2. The profile 13 is made in one piece. It comprises a dorsal wall 14, two substantially vertical lateral flanks 20 in the use position, which project from the lateral edges of the back wall 14 downwards, and two returns 16 which project each from the lower end of the dorsal wall 14. a flank 20 in the direction of the opposite side 20, the returns 16 leaving between them the longitudinal slot 15.

L'organe de verrouillage 12 comprend également un moyen de verrouillage qui prend appui sur la branche de maintien 4 de sorte à exercer une poussée sur le profilé 13 pour que les retours 16 bordant la fente longitudinale 15 du profilé 13 puissent venir enserrer les sous-faces 8 de l'aile supérieure 5 de la poutrelle 6. Ce moyen de verrouillage est constitué d'une came 17 montée en pivot par rapport au profilé 13 pour pouvoir venir en appui contre la branche de maintien 4 de la ferrure 2, au travers d'une fenêtre 18 ménagée dans le profilé 13, de sorte à exercer une poussée sur le profilé 13.The locking member 12 also comprises a locking means which bears on the holding arm 4 so as to exert a thrust on the profile 13 so that the returns 16 bordering the longitudinal slot 15 of the profile 13 can come to grip the sub-elements. faces 8 of the upper flange 5 of the beam 6. This locking means consists of a cam 17 pivotally mounted relative to the profile 13 to bear against the holding arm 4 of the fitting 2, through a window 18 formed in the profile 13, so as to exert a thrust on the profile 13.

La came 17 est connectée à un levier 19 qui permet d'actionner le pivotement de la came 17 de sorte à exercer la poussée sur le profilé 13 (figure 1).The cam 17 is connected to a lever 19 which makes it possible to actuate the pivoting of the cam 17 so as to exert the thrust on the profile 13 ( figure 1 ).

Tel qu'illustré aux figures 1 et 2, la came 17 est montée en pivot selon la direction longitudinale du profilé 13 pour limiter l'encombrement du dispositif 1.As illustrated in figures 1 and 2 , the cam 17 is pivotally mounted in the longitudinal direction of the profile 13 to limit the size of the device 1.

Dans une variante de réalisation non représentée, le moyen de verrouillage est une vis qui vient s'engager dans un trou filté ménagé dans le profilé 13 afin d'exercer une poussée sur le profilé 13 de sorte à ce que les deux retours 16, bordant la fente longitudinale 15 du profilé 13, viennent enserrer les sous-faces 8 de l'aile supérieure 5 de la poutrelle 6.In an alternative embodiment not shown, the locking means is a screw which engages in a threaded hole formed in the profile 13 in order to exert a thrust on the profile 13 so that the two returns 16, bordering the longitudinal slot 15 of the profile 13, come to grip the sub-faces 8 of the upper flange 5 of the beam 6.

Selon une autre variante de réalisation non représentée, la branche de soutien 3 de la ferrure d'appui 2 comprend également des moyens de fixation d'un accessoire tel qu'une barrière de sécurité ou un étai permettant un assemblage avec une autre poutrelle 6 de façon à former par exemple une nouvelle structure pour béton à un niveau supérieur.According to another variant of embodiment not shown, the support branch 3 of the support fitting 2 also comprises means for attaching an accessory such as a safety barrier or a strut allowing an assembly with another beam 6 of for example to form a new concrete structure at a higher level.

Afin d'appliquer le dispositif d'appui 1 de planches sur une poutrelle 6, la branche de maintien 4 de la ferrure d'appui 2 est tout d'abord ajustée sur l'aile supérieure 5 de la poutrelle 6 de sorte à ce que la branche de soutien 3 soit placée à l'endroit où la planche de coffrage doit être maintenue. Le profilé 13 est ensuite glissé le long de l'aile 5, suite à l'engagement de la fente longitudinale 15 du profilé 13 à l'extrémité de l'âme de la poutrelle 6, jusqu'à venir se superposer sur la branche de maintien 4. Puis le levier 19 de la came 17 est déplacé dans la direction de la branche de soutien 3 pour que la came 17 vienne en appui, à travers la fenêtre 18 ménagée dans le profilé 13, contre la branche de maintien 4 de la ferrure 2. Le mouvement de la came 17 exerce alors une poussée sur le profilé 13 de sorte à ce que les deux retours 16 bordant la fente longitudinale 15 du profilé 13 viennent enserrer les sous-faces 8 de l'aile supérieure 5 de la poutrelle 6, verrouillant ainsi la position de la ferrure 2 sur l'aile 5 de la poutrelle 6.In order to apply the support device 1 of boards on a beam 6, the holding branch 4 of the support fitting 2 is first fitted on the upper flange 5 of the beam 6 so that the support leg 3 is placed where the formwork board is to be maintained. The profile 13 is then slid along the flange 5, following the engagement of the longitudinal slot 15 of the profile 13 at the end of the web of the beam 6, to be superimposed on the branch of 4. Then the lever 19 of the cam 17 is moved in the direction of the support leg 3 so that the cam 17 bears, through the window 18 formed in the profile 13, against the holding arm 4 of the fitting 2. The movement of the cam 17 then exerts a thrust on the profile 13 so that the two returns 16 bordering the longitudinal slot 15 of the section 13 encircle the sub-faces 8 of the upper flange 5 of the beam 6, thus locking the position of the fitting 2 on the flange 5 of the beam 6.

Pour déverrouiller la position de la ferrure 2, le levier 19 de la came 17 est déplacé en direction de la branche de maintien 4 de sorte à ce que la came 17 relâche la pression exercée contre la branche de maintien 4 au travers de la fenêtre 18 du profilé 13. Les deux retours 16 bordant la fente longitudinale 15 du profilé 13 s'écartent alors des sous-faces 8 de l'aile 5 de la poutrelle 6, déverrouillant la fixation de la ferrure 2. Le profilé 13 est alors retiré par un mouvement coulissant le long de l'aile 5 jusqu'à l'extrémité de la poutrelle 6, libérant ainsi la ferrure 2 pour une nouvelle utilisation.To unlock the position of the fitting 2, the lever 19 of the cam 17 is moved towards the holding arm 4 so that the cam 17 releases the pressure exerted against the holding arm 4 through the window 18 of the profile 13. The two returns 16 bordering the longitudinal slot 15 of the section 13 then depart from the sub-faces 8 of the flange 5 of the beam 6, unlocking the attachment of the fitting 2. The profile 13 is then removed by a movement sliding along the wing 5 to the end of the beam 6, thus releasing the fitting 2 for a new use.

Selon un deuxième mode de réalisation, illustré sur les figures 3 et 4, le moyen de fixation 13 comprend deux éléments distincts 13a, 13b, ainsi qu'un moyen de liaison 21 amovible et réglable de ces deux éléments distincts.According to a second embodiment, illustrated on the figures 3 and 4 , the fastening means 13 comprises two separate elements 13a, 13b, and a connecting means 21 removable and adjustable of these two distinct elements.

Chaque élément 13a, 13b est de préférence réalisé d'une seule pièce et comprend, en position d'utilisation : un flanc latéral 20a, 20b sensiblement vertical, une paroi dorsale 14a, 14b faisant saillie de l'extrémité supérieure du flanc latéral 20a, 20b en direction de l'élément 13b, 13a opposé, et un retour 16a, 16b faisant saillie de l'extrémité inférieure du flanc latéral 20a, 20b en direction de l'élément 13b, 13a opposé.Each element 13a, 13b is preferably made in one piece and comprises, in the position of use: a lateral flank 20a, 20b substantially vertical, a dorsal wall 14a, 14b protruding from the upper end of the lateral flank 20a, 20b towards the element 13b, 13a opposite, and a return 16a, 16b protruding from the lower end of the side flank 20a, 20b towards the element 13b, 13a opposite.

Le moyen de liaison 21 comprend tout d'abord une tige filetée 22 engagée dans des orifices 23 ménagés en vis-à-vis dans des ailes 24a, 24b faisant saillie vers le haut depuis la paroi dorsale 14a, 14b de chaque élément13a, 13b. Comme illustré sur les figures 3 et 4, la tige filetée 22 est de plus engagée dans la came 17 et constitue son axe de pivotement transversal.The connecting means 21 comprises firstly a threaded rod 22 engaged in orifices 23 formed vis-a-vis in wings 24a, 24b protruding upwardly from the back wall 14a, 14b of each element13a, 13b. As illustrated on figures 3 and 4 , the threaded rod 22 is further engaged in the cam 17 and is its transverse pivot axis.

Le moyen de liaison 21 comprend également un organe de serrage 25 coopérant avec ladite tige filetée 21. Plus spécifiquement, un écrou papillon 25 est prévu de part et d'autre des ailes 24a, 24b, avec interposition d'une douille 26. Les écrous 25 permettent de rapprocher transversalement les éléments 13a, 13b formant le moyen de fixation 13, pour que ces éléments 13a, 13b serrent entre eux la poutrelle 6.The connecting means 21 also comprises a clamping member 25 cooperating with said threaded rod 21. More specifically, a wing nut 25 is provided on either side of the wings 24a, 24b, with the interposition of a sleeve 26. The nuts 25 allow to move transversely the elements 13a, 13b forming the fastening means 13, so that these elements 13a, 13b clamp together the beam 6.

Des ressorts de rappel 27 permettent en outre de maintenir en tension les éléments 13a, 13b. Un ressort 27 est placé de chaque côté de la came 17, et prend appui d'une part sur une aile 24a, 24b et d'autre part sur une plaque 28a, 28b adjacente à la came 17.Returning springs 27 also make it possible to keep the elements 13a, 13b in tension. A spring 27 is placed on each side of the cam 17, and bears on the one hand on a wing 24a, 24b and on the other hand on a plate 28a, 28b adjacent to the cam 17.

Comme il va de soi, l'invention ne se limite pas aux formes d'exécution de ce dispositif d'appui 1 décrit ci-dessus à titre d'exemple, elle en embrasse au contraire toues les variantes.As goes without saying, the invention is not limited to the embodiments of this support device 1 described above as an example, it encompasses all variants.

Claims (11)

Dispositif d'appui (1) de planches pour coffrage sur poutrelle (6) comprenant une âme verticale (7) et deux ailes (5,9) présentant ensemble une forme de I, le dispositif (1) est caractérisé en ce qu'il comprend : - une ferrure d'appui (2) comportant une branche de soutien (3) conçue pour recevoir une planche de coffrage et une branche de maintien (4) conçue pour venir reposer sur l'aile supérieure (5) de la poutrelle (6) - un organe de verrouillage (12) comportant
○ un moyen de fixation (13) comprenant une paroi dorsale (14) et une fente longitudinale (15) bordée de deux retours (16) du coté opposé à la paroi dorsale (14), destiné à s'engager sur la poutrelle (6) de sorte à ce que la branche de maintien (4) de la ferrure (2) puisse être insérée entre la paroi dorsale (14) du moyen de fixation (13) et la poutrelle (6), et
○ un moyen de verrouillage pouvant prendre appui sur la branche de maintien (4) de la ferrure (2) pour exercer une poussée sur le moyen de fixation (13) de sorte à ce que les retours (16) puissent venir enserrer les sous-faces (8) de l'aile supérieure (5) de la poutrelle (6). Support device (1) for boards for beam formwork (6) comprising a vertical core (7) and two flanges (5, 9) which together have a shape of I, the device (1) is characterized in that includes: - a support fitting (2) comprising a support branch (3) designed to receive a formwork board and a holding branch (4) designed to rest on the upper flange (5) of the beam (6) a locking member (12) comprising
A fastening means (13) comprising a back wall (14) and a longitudinal slot (15) flanked by two returns (16) on the side opposite to the back wall (14), intended to engage the beam (6); ) so that the holding leg (4) of the fitting (2) can be inserted between the dorsal wall (14) of the fastening means (13) and the beam (6), and
○ a locking means that can bear on the holding arm (4) of the fitting (2) to exert a thrust on the fastening means (13) so that the returns (16) can grip the undercuts; faces (8) of the upper wing (5) of the beam (6). Dispositif d'appui (1) selon la revendication 1 caractérisé en ce que la paroi dorsale (14) du moyen de fixation (13) comporte une fenêtre (18) et en ce que le moyen de verrouillage comprend une came (17) positionnée en surplomb de la fenêtre (18), ladite came (17) étant montée en pivot par rapport au moyen de fixation (13) pour pouvoir venir en appui, à travers la fenêtre (18), sur la branche de maintien (4) de la ferrure (2) et exercer une poussée sur le moyen de fixation (13) de sorte à ce que les deux retours (16) du moyen de fixation (13) puissent venir enserrer les sous-faces (8) de l'aile supérieure (5) de la poutrelle (6).Support device (1) according to claim 1 characterized in that the dorsal wall (14) of the fastening means (13) comprises a window (18) and in that the locking means comprises a cam (17) positioned in overhang of the window (18), said cam (17) being pivotally mounted relative to the fixing means (13) so as to bear, through the window (18), on the holding arm (4) of the fitting (2) and exerting a thrust on the fastening means (13) so that the two returns (16) of the fastening means (13) can grip the sub-faces (8) of the upper wing ( 5) of the beam (6). Dispositif d'appui (1) selon la revendication 1 ou 2, caractérisé en ce que le moyen de fixation comprend un profilé (13) de section transversale quadrangulaire, réalisé d'une seule pièce, possédant une paroi dorsale (14), deux flancs latéraux (20), et deux retours (16) ménageant entre eux la fente longitudinale (15).Support device (1) according to claim 1 or 2, characterized in that the fastening means comprises a profile (13) of quadrangular cross section, made in one piece, having a back wall (14), two lateral flanks (20), and two returns (16) between them the longitudinal slot (15). Dispositif d'appui (1) selon la revendication 1 ou 2, caractérisé en ce que le moyen de fixation (13) comprend : - deux éléments distincts (13a, 13b) qui comportent chacun, en position d'utilisation : un flanc latéral (20a, 20b) ; une paroi dorsale (14a, 14b) faisant saillie de l'extrémité supérieure du flanc latéral (20a, 20b) en direction de l'élément (13a, 13b) opposé ; et un retour (16a, 16b) faisant saillie de l'extrémité inférieure du flanc latéral (20a, 20b) en direction de l'élément (13a, 13b) opposé ; - un moyen de liaison (21à amovible et réglable des deux éléments (13a, 13b) distincts. Support device (1) according to claim 1 or 2, characterized in that the fastening means (13) comprises: two distinct elements (13a, 13b) each comprising, in the position of use: a lateral flank (20a, 20b); a back wall (14a, 14b) projecting from the upper end of the side flank (20a, 20b) toward the opposite member (13a, 13b); and a return (16a, 16b) projecting from the lower end of the lateral flank (20a, 20b) toward the opposite member (13a, 13b); - Removable and adjustable connection means (21) for the two distinct elements (13a, 13b). Dispositif d'appui (1) selon la revendication 4, caractérisé en ce que le moyen de liaison (21) comprend une tige filetée (22) engagée dans des orifices (23) ménagés en vis-à-vis dans des ailes (24a, 24b) faisant saillie vers le haut depuis la paroi dorsale (14a, 14b) de chaque élément (13a, 13b), ainsi qu'un organe de serrage (25) coopérant avec ladite tige filetée (22).Support device (1) according to claim 4, characterized in that the connecting means (21) comprises a threaded rod (22) engaged in orifices (23) formed vis-a-vis in wings (24a, 24b) protruding upwardly from the back wall (14a, 14b) of each member (13a, 13b), and a clamping member (25) cooperating with said threaded rod (22). Dispositif d'appui (1) selon l'une des revendications 2 à 5, caractérisé en ce que la came (17) est montée en pivot dans la direction longitudinale du moyen de fixation (13).Support device (1) according to one of claims 2 to 5, characterized in that the cam (17) is pivotally mounted in the longitudinal direction of the fastening means (13). Dispositif d'appui (1) selon l'une des revendications 2 à 6, caractérisé en ce que la came (17) est connectée à un levier (19) permettant de faire pivoter et venir la came (17) en appui sur la branche de maintien (4).Support device (1) according to one of claims 2 to 6, characterized in that the cam (17) is connected to a lever (19) for pivoting and coming the cam (17) resting on the branch holding (4). Dispositif d'appui (1) selon l'une des revendications 1 à 7, caractérisé en ce que la paroi dorsale (14) comprend au moins un trou fileté et que le moyen de verrouillage comprend au moins une vis qui vient s'engager dans le ou chaque trou fileté pour exercer une poussée sur le moyen de fixation (13) de sorte à ce que les deux retours (16) du moyen de fixation (13) puissent venir enserrer les sous-faces (8) de l'aile supérieure (5) de la poutrelle (6).Support device (1) according to one of claims 1 to 7, characterized in that the back wall (14) comprises at least one threaded hole and the locking means comprises at least one screw which engages in the or each threaded hole for exerting a thrust on the fastening means (13) so that the two returns (16) of the fastening means (13) can grip the sub-faces (8) of the upper wing (5) of the beam (6). Dispositif d'appui (1) selon l'une des revendications 1 à 8, caractérisé en ce que la branche de maintien (4) de la ferrure (2) comprend deux bordures latérales (11) pouvant venir encadrer l'aile supérieure (5) de la poutrelle (6).Support device (1) according to one of claims 1 to 8, characterized in that the holding leg (4) of the fitting (2) comprises two lateral edges (11) which can be flanked by the upper flange (5). ) of the beam (6). Dispositif d'appui (1) selon l'une des revendications 1 à 9, caractérisé en ce que la branche de soutien (3) de la ferrure (2) comprend des moyens de fixation d'un accessoire tel qu'une barrière de sécurité ou un étai.Support device (1) according to one of claims 1 to 9, characterized in that the support leg (3) of the fitting (2) comprises means for attaching an accessory such as a safety barrier or a stay. Dispositif d'appui (1) selon l'une des revendications 1 à 10, caractérisé en ce que la branche de soutien (3) et la branche de maintien (4) de la ferrure d'appui (2) présentent ensemble une forme en L.Support device (1) according to one of claims 1 to 10, characterized in that the support arm (3) and the holding arm (4) of the support bracket (2) together have a L.
EP12184947.5A 2012-09-19 2012-09-19 Device for supporting formwork boards Withdrawn EP2711483A1 (en)

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
FR3029550A1 (en) * 2014-12-04 2016-06-10 Charvin Ind DEVICE FOR TEMPORARILY ASSEMBLING ELEMENTS ON A BEAM OF BUILDING STRUCTURE
ES2598728A1 (en) * 2015-07-27 2017-01-30 Sistemas Técnicos De Encofrados, S.A. Device for fixing vertical shuttering panels for the edge of slabs (Machine-translation by Google Translate, not legally binding)
CN109204507A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Vehicle body crossbeam and vehicle
CN111877783A (en) * 2020-06-29 2020-11-03 湖北精工工业建筑系统有限公司 Lifeline upright post mounting and fastening device suitable for box-shaped steel beam
WO2021038188A1 (en) * 2019-08-28 2021-03-04 Tecna Display Limited Brackets

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DE202010007783U1 (en) * 2010-06-09 2010-11-25 Klein, Andreas Device for permanent moisture-proof connection with racks for coupling roof structures
FR2974133A1 (en) * 2011-04-14 2012-10-19 Chapal Ets Device for supporting formwork boards on beam for building concrete structure, has screw or cam supported on holding branch to exert thrust on part of locking element such that return portions enclose under-surfaces of upper wing of beam

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Publication number Priority date Publication date Assignee Title
US3531091A (en) * 1969-03-06 1970-09-29 Safety Dev Inc Safety barrier
DE10127641A1 (en) * 2001-06-07 2002-12-12 Baumann Verwertungs Gmbh Shuttering holder clamping to beam centers round threaded bar with top clamp nut to draw holding arms tight onto beam for all-round grip and security.
DE202010007783U1 (en) * 2010-06-09 2010-11-25 Klein, Andreas Device for permanent moisture-proof connection with racks for coupling roof structures
FR2974133A1 (en) * 2011-04-14 2012-10-19 Chapal Ets Device for supporting formwork boards on beam for building concrete structure, has screw or cam supported on holding branch to exert thrust on part of locking element such that return portions enclose under-surfaces of upper wing of beam

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3029550A1 (en) * 2014-12-04 2016-06-10 Charvin Ind DEVICE FOR TEMPORARILY ASSEMBLING ELEMENTS ON A BEAM OF BUILDING STRUCTURE
ES2598728A1 (en) * 2015-07-27 2017-01-30 Sistemas Técnicos De Encofrados, S.A. Device for fixing vertical shuttering panels for the edge of slabs (Machine-translation by Google Translate, not legally binding)
CN109204507A (en) * 2017-06-30 2019-01-15 比亚迪股份有限公司 Vehicle body crossbeam and vehicle
CN109204507B (en) * 2017-06-30 2020-10-23 比亚迪股份有限公司 Vehicle body cross member and vehicle
WO2021038188A1 (en) * 2019-08-28 2021-03-04 Tecna Display Limited Brackets
GB2602747A (en) * 2019-08-28 2022-07-13 Tecna Display Ltd Brackets
US11940093B2 (en) 2019-08-28 2024-03-26 Techna Display Limited Brackets
CN111877783A (en) * 2020-06-29 2020-11-03 湖北精工工业建筑系统有限公司 Lifeline upright post mounting and fastening device suitable for box-shaped steel beam
CN111877783B (en) * 2020-06-29 2021-11-23 湖北精工工业建筑系统有限公司 Lifeline upright post mounting and fastening device suitable for box-shaped steel beam

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