EP1978182A1 - Device for fixing a post to the surface of a concrete floor - Google Patents

Device for fixing a post to the surface of a concrete floor Download PDF

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Publication number
EP1978182A1
EP1978182A1 EP08290257A EP08290257A EP1978182A1 EP 1978182 A1 EP1978182 A1 EP 1978182A1 EP 08290257 A EP08290257 A EP 08290257A EP 08290257 A EP08290257 A EP 08290257A EP 1978182 A1 EP1978182 A1 EP 1978182A1
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EP
European Patent Office
Prior art keywords
branch
arch
plane
wire
reinforcing
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.)
Granted
Application number
EP08290257A
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German (de)
French (fr)
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EP1978182B1 (en
Inventor
François-Régis Bonnet
Richard Garcia
Thierry Haour
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KP1 SAS
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KP1 SAS
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Application filed by KP1 SAS filed Critical KP1 SAS
Publication of EP1978182A1 publication Critical patent/EP1978182A1/en
Application granted granted Critical
Publication of EP1978182B1 publication Critical patent/EP1978182B1/en
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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
    • 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
    • E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings

Definitions

  • the present invention relates to a device for fixing a post on the surface of a concrete floor.
  • the present invention intends to propose a solution for the implementation of safety barriers that eliminates the use of a tool on site.
  • the invention relates to a device for fixing a post on the surface of a concrete floor, which floor comprises at least two parallel reinforcing or prestressing wires, this device being constituted by a wire hoop with two legs shaped to be hooked from underneath to one of the reinforcing wires, one of the jambs being prolonged after its conformation into a branch extending substantially perpendicular to the plane of the arch and whose length is greater than the distance separating the two reinforcing threads so that this branch may be elastically buttressed between these threads.
  • the worker has a pre-formed wire so as to hook it on a reinforcing wire and maintain it in a substantially vertical position thanks to the flexible branch it can flex by hand to be itself hooked by its free end to a reinforcement wire parallel to the wire that supports the hoop.
  • the branch remains elastically braced between the two reinforcing threads.
  • the free end of the branch comprises a kind of loop which extends in a plane substantially parallel to that of the hoop, so that when this branch is bent, this loop comes ride on the jumper adjacent wire to the support wire of the arch.
  • the subject of the invention is a process for prefabrication of a concrete floor provided with reinforcement or prestressing threads, according to which, before pouring the concrete, the device described above is placed on the reinforcement. by hooking the hoop on one of the son and bending the branch elastically to give him an arrow and hanging its free end thus bent to the reinforcement wire adjacent to that crooked by the hoop.
  • the device of the invention is made from a wire 1 shaped as an arch 2 in a plane P.
  • One of the branches 2a of this arch has at its free end a loop 3 which constitutes a jumper open upwards if the plane P is vertical and in a plane perpendicular to the plane P.
  • the other branch 2b of the arch also has a loop 4 forming a jumper parallel to the first and open upwards, this loop 4 being extended by a branch 5 substantially perpendicular to the plane P which contains the arch, of length L and whose free end is shaped as a loop 6 in a plane P1 substantially parallel to the plane P of the arch 2.
  • the figure 2 illustrates the device described above placed in a reinforced floor or provided with prestressing son. These reinforcing or prestressing wires are marked 10 and 11 on the figure 2 and are spaced from each other in a substantially horizontal plane of a length D which is known to be rarely greater than 220 mm - 250 mm.
  • the length L of the branch 5 of the device according to the invention is therefore greater than this spacing D of 220mm - 250 mm.
  • the length L may be 350 mm.
  • the device Before pouring concrete, the device is put into place so that the wire 10 is housed in the loops 3 and 4, the hoop thus being hooked to the wire 10 from below, and the branch 5 is flexed by hand in the direction F of the figure 1 , so that the loop 6 comes to overlap the reinforcing or prestressing wire 11 adjacent to the wire 10.
  • the branch 5 constitutes a kind of elastic clip of the arch 2 on the reinforcement of the slab or the floor which maintains this hoop in vertical position and this elastically during the reinforcement of the floor.
  • This peak c 2 therefore constitutes an attachment ring of a stanchion 15 shown in figure 3 .
  • This post 15 is provided with a tripod 16 in the lower part and a kind of screw jack 17 whose rod which can exit or enter the barrel of the post is equipped with a hook 18. It is understood that entering the rod 17 inside the barrel of the post, it creates a plating of the tripod 16 on the surface 13 of the floor.
  • the invention is not limited to the shape of the device shown in the figures. Those skilled in the art may indeed design other forms, especially at the level of the cooperation of the base of the arch with one of the reinforcing wires, while maintaining the existence of the flexing limb 5 which constitutes the fastening clip of the device to the frame.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The device has a metallic wire folded into an arch in a plane, where the arch comprises jambs (2a, 2b) folded for being hooked underneath a reinforcing wire (10). The jamb (2b) is extended after its folding into a branch (5) that extends perpendicular to the plane. The branch has a length that is greater than a distance (D) separating reinforcing wires (10, 11) such that the branch is elastically pressed between the wires (10, 11). An independent claim is also included for a method of fabricating a concrete floor.

Description

La présente invention concerne un dispositif de fixation d'un potelet sur la surface d'un plancher en béton.The present invention relates to a device for fixing a post on the surface of a concrete floor.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Les planchers en béton, préfabriqués ou non, possèdent des surfaces supérieures souvent en altitude, constituant des aires de déplacement pour des ouvriers. Ces surfaces sont limitées par les bords et il convient de mettre en place des barrières de sécurité le long de ces bords.Concrete floors, prefabricated or not, have upper surfaces often at altitude, constituting moving areas for workers. These surfaces are limited by the edges and it is advisable to set up safety barriers along these edges.

Parmi les dispositifs mis en oeuvre pour réaliser ces barrières de sécurité, l'un d'eux consiste en plusieurs montants fixés par leurs pieds à la surface supérieure de la dalle de béton au voisinage de son bord, des filets ou des lisses étant disposés entre les montants adjacents ainsi érigés. La fixation des montants est réalisée en fixant une base sur le plancher par des organes de fixation qui coopèrent avec le béton. Dans d'autres cas, on rapporte sur cette surface un anneau et le montant est ancré à l'anneau au moyen d'un système vis-écrou qui permet de créer une tension entre l'anneau et le montant le long de son axe longitudinal.Among the devices used to make these safety barriers, one of them consists of several amounts fixed by their feet to the upper surface of the concrete slab in the vicinity of its edge, nets or rails being arranged between the adjacent amounts thus erected. The amounts are fixed by fixing a base on the floor by fasteners that cooperate with the concrete. In other cases, there is reported on this surface a ring and the amount is anchored to the ring by means of a screw-nut system which allows to create a tension between the ring and the amount along its longitudinal axis .

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

La présente invention entend proposer une solution à la mise en place de barrières de sécurité qui permet de supprimer l'utilisation d'un outil sur chantier.The present invention intends to propose a solution for the implementation of safety barriers that eliminates the use of a tool on site.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet donc, l'invention a pour objet un dispositif de fixation d'un potelet sur la surface d'un plancher en béton, lequel plancher comporte au moins deux fils parallèles d'armature ou de précontrainte, ce dispositif étant constitué par un arceau en fil métallique avec deux jambages conformés pour être crochetés par-dessous à l'un des fils d'armature, l'un des jambages étant prolongé après sa conformation en une branche s'étendant sensiblement perpendiculairement au plan de l'arceau et dont la longueur est supérieure à la distance séparant les deux fils d'armature de sorte que cette branche peut être élastiquement arc-boutée entre ces fils.For this purpose therefore, the invention relates to a device for fixing a post on the surface of a concrete floor, which floor comprises at least two parallel reinforcing or prestressing wires, this device being constituted by a wire hoop with two legs shaped to be hooked from underneath to one of the reinforcing wires, one of the jambs being prolonged after its conformation into a branch extending substantially perpendicular to the plane of the arch and whose length is greater than the distance separating the two reinforcing threads so that this branch may be elastically buttressed between these threads.

Ainsi, soit au moment de la préfabrication du plancher, soit sur chantier, avant le coulage du béton, l'ouvrier dispose d'un fil métallique préconformé de manière à le crocheter sur un fil d'armature et à le maintenir en position sensiblement verticale grâce à la branche flexible qu'il peut fléchir à la main afin d'être elle-même crochetée par son extrémité libre à un fil d'armature parallèle au fil qui supporte l'arceau. La branche reste donc élastiquement arc-boutée entre les deux fils d'armature.Thus, either at the time of the prefabrication of the floor, or on site, before pouring the concrete, the worker has a pre-formed wire so as to hook it on a reinforcing wire and maintain it in a substantially vertical position thanks to the flexible branch it can flex by hand to be itself hooked by its free end to a reinforcement wire parallel to the wire that supports the hoop. The branch remains elastically braced between the two reinforcing threads.

A cet effet, l'extrémité libre de la branche comporte une sorte de boucle qui s'étend dans un plan sensiblement parallèle à celui de l'arceau, de sorte que lorsque cette branche est fléchie, cette boucle vienne chevaucher en cavalier le fil adjacent au fil de support de l'arceau.For this purpose, the free end of the branch comprises a kind of loop which extends in a plane substantially parallel to that of the hoop, so that when this branch is bent, this loop comes ride on the jumper adjacent wire to the support wire of the arch.

L'invention a pour objet secondaire un procédé de préfabrication d'un plancher en béton pourvu de fils d'armature ou de précontrainte, selon lequel, avant le coulage du béton, on met en place le dispositif décrit ci-dessus sur l'armature en crochetant l'arceau sur l'un des fils et en courbant élastiquement la branche pour lui donner une flèche et en accrochant son extrémité libre ainsi courbée au fil d'armature adjacent à celui crocheté par l'arceau.The subject of the invention is a process for prefabrication of a concrete floor provided with reinforcement or prestressing threads, according to which, before pouring the concrete, the device described above is placed on the reinforcement. by hooking the hoop on one of the son and bending the branch elastically to give him an arrow and hanging its free end thus bent to the reinforcement wire adjacent to that crooked by the hoop.

D'autres caractéristiques et avantages de l'invention ressortiront à la description donnée ci-après d'un exemple de réalisation.Other features and advantages of the invention will emerge from the description given below of an exemplary embodiment.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Il sera fait référence aux dessins annexés, parmi lesquels :

  • la figure 1 illustre le dispositif selon l'invention avant se mise en place,
  • la figure 2 illustre par une vue partielle un plancher équipé du dispositif de la figure 1,
  • la figure 3 illustre la coopération d'un potelet et du dispositif de l'invention.
Reference will be made to the appended drawings, among which:
  • the figure 1 illustrates the device according to the invention before being put in place,
  • the figure 2 illustrates by a partial view a floor equipped with the device of the figure 1 ,
  • the figure 3 illustrates the cooperation of a post and the device of the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En se reportant à ces figures, on constate que le dispositif de l'invention est réalisé à partir d'un fil métallique 1 conformé en un arceau 2 dans un plan P. L'une des branches 2a de cet arceau comporte à son extrémité libre une boucle 3 qui constitue un cavalier ouvert vers le haut si le plan P est vertical et dans un plan perpendiculaire au plan P.Referring to these figures, it can be seen that the device of the invention is made from a wire 1 shaped as an arch 2 in a plane P. One of the branches 2a of this arch has at its free end a loop 3 which constitutes a jumper open upwards if the plane P is vertical and in a plane perpendicular to the plane P.

L'autre branche 2b de l'arceau possède également une boucle 4 formant cavalier parallèle au premier et ouvert vers le haut, cette boucle 4 se prolongeant par une branche 5 sensiblement perpendiculaire au plan P qui contient l'arceau, de longueur L et dont l'extrémité libre est conformée en une boucle 6 dans un plan P1 sensiblement parallèle au plan P de l'arceau 2.The other branch 2b of the arch also has a loop 4 forming a jumper parallel to the first and open upwards, this loop 4 being extended by a branch 5 substantially perpendicular to the plane P which contains the arch, of length L and whose free end is shaped as a loop 6 in a plane P1 substantially parallel to the plane P of the arch 2.

La figure 2 illustre le dispositif ci-dessus décrit mis en place dans un plancher armé ou pourvu de fils de précontrainte. Ces fils d'armature ou de précontrainte sont notés 10 et 11 sur la figure 2 et sont distants l'un de l'autre dans un plan sensiblement horizontal d'une longueur D dont on sait qu'elle est rarement supérieure à 220 mm - 250 mm. La longueur L de la branche 5 du dispositif selon l'invention est donc supérieure à cet écartement D de 220mm - 250 mm. Par exemple la longueur L pourra être de 350 mm.The figure 2 illustrates the device described above placed in a reinforced floor or provided with prestressing son. These reinforcing or prestressing wires are marked 10 and 11 on the figure 2 and are spaced from each other in a substantially horizontal plane of a length D which is known to be rarely greater than 220 mm - 250 mm. The length L of the branch 5 of the device according to the invention is therefore greater than this spacing D of 220mm - 250 mm. For example, the length L may be 350 mm.

Avant coulage du béton, le dispositif est mis en place de sorte que le fil 10 soit logé dans les boucles 3 et 4, l'arceau étant ainsi crocheté à ce fil 10 par-dessous, et la branche 5 est fléchie à la main selon la direction F de la figure 1, pour que la boucle 6 vienne chevaucher le fil d'armature ou de précontrainte 11 adjacent au fil 10. La branche 5 constitue une sorte d'agrafe élastique de l'arceau 2 sur l'armature de la dalle ou du plancher qui maintient cet arceau en position verticale et ce de manière élastique lors du ferraillage du plancher.Before pouring concrete, the device is put into place so that the wire 10 is housed in the loops 3 and 4, the hoop thus being hooked to the wire 10 from below, and the branch 5 is flexed by hand in the direction F of the figure 1 , so that the loop 6 comes to overlap the reinforcing or prestressing wire 11 adjacent to the wire 10. The branch 5 constitutes a kind of elastic clip of the arch 2 on the reinforcement of the slab or the floor which maintains this hoop in vertical position and this elastically during the reinforcement of the floor.

On procède ensuite au coulage du béton 12 qui, une fois sec, présente une surface supérieure 13 de laquelle le sommet 2c de l'arceau fait saillie.Then poured concrete 12 which, once dry, has an upper surface 13 of which the top 2 c of the arch protrudes.

Ce sommet 2c constitue donc un anneau d'accrochage d'un potelet 15 illustré à la figure 3. Ce potelet 15 est pourvu d'un trépied 16 en partie inférieure et d'une sorte de vérin à vis 17 dont la tige qui peut sortir ou entrer du fût du potelet est équipée d'un crochet 18. On comprend qu'en entrant la tige 17 à l'intérieur du fût du potelet, on crée un plaquage du tripode 16 sur la surface 13 du plancher.This peak c 2 therefore constitutes an attachment ring of a stanchion 15 shown in figure 3 . This post 15 is provided with a tripod 16 in the lower part and a kind of screw jack 17 whose rod which can exit or enter the barrel of the post is equipped with a hook 18. It is understood that entering the rod 17 inside the barrel of the post, it creates a plating of the tripod 16 on the surface 13 of the floor.

L'invention n'est pas limitée à la forme du dispositif représenté aux figures. L'homme du métier pourra en effet concevoir d'autres formes, notamment au niveau de la coopération de la base de l'arceau avec l'un des fils d'armature, tout en conservant l'existence de la branche 5 fléchissante qui constitue l'agrafe de fixation du dispositif à l'armature.The invention is not limited to the shape of the device shown in the figures. Those skilled in the art may indeed design other forms, especially at the level of the cooperation of the base of the arch with one of the reinforcing wires, while maintaining the existence of the flexing limb 5 which constitutes the fastening clip of the device to the frame.

Claims (3)

Dispositif de fixation d'un potelet (15) sur la surface (13) d'un plancher en béton, comportant au moins deux fils parallèles d'armature ou de précontrainte (10, 11), caractérisé en ce qu'il est constitué par un arceau (2) en fil métallique (1) avec deux jambages (2a, 2b) conformés pour être crochetés par-dessous à l'un des fils (10) d'armature, l'un (2b) des jambages étant prolongé après sa conformation en une branche (5) s'étendant sensiblement perpendiculairement au plan (P) de l'arceau et dont la longueur (L) est supérieure à la distance (D) séparant les deux fils d'armature (10, 11) de sorte que cette branche peut être élastiquement arc-boutée entre ces fils.Device for fixing a post (15) on the surface (13) of a concrete floor, comprising at least two parallel reinforcing or prestressing wires (10, 11), characterized in that it consists of a bow (2) wire (1) with two legs (2a, 2b) configured to be hooked underneath to a son (10) frame, one (2 b) of the legs being extended after its conformation into a branch (5) extending substantially perpendicularly to the plane (P) of the arch and whose length (L) is greater than the distance (D) separating the two reinforcing wires (10, 11) so that this branch can be elastically braced between these threads. Dispositif selon la revendication 1, caractérisé en ce que l'extrémité libre de la branche (5) est conformée en une boucle (6) dans un plan (P1) sensiblement parallèle à celui (P) de l'arceau.Device according to claim 1, characterized in that the free end of the leg (5) is shaped as a loop (6) in a plane (P1) substantially parallel to that (P) of the arch. Procédé de fabrication d'un plancher en béton pourvu de fils (10, 11) d'armature ou de précontrainte, caractérisé en ce qu'avant le coulage du béton il comprend la phase de mise en place du dispositif selon la revendication 1 sur l'armature en crochetant l'arceau (2) sur l'un (10) des fils, en courbant élastiquement la branche (5) pour lui donner une flèche et en accrochant son extrémité (6) libre ainsi courbée au fil d'armature (11) adjacent à celui (10) crocheté par l'arceau (2).A method of manufacturing a concrete floor with reinforcement or prestressing yarns (10, 11), characterized in that before the pouring of the concrete it comprises the installation phase of the device according to claim 1 on the frame by hooking the hoop (2) on one (10) of the wires, flexing the branch (5) to give it an arrow and hooking its free end (6) thus bent to the reinforcing wire ( 11) adjacent to that (10) crocheted by the arch (2).
EP08290257.8A 2007-04-03 2008-03-18 Device for fixing a post to the surface of a concrete floor Active EP1978182B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0702429A FR2914672B1 (en) 2007-04-03 2007-04-03 DEVICE FOR FIXING A POTELET ON THE SURFACE OF A CONCRETE FLOOR

Publications (2)

Publication Number Publication Date
EP1978182A1 true EP1978182A1 (en) 2008-10-08
EP1978182B1 EP1978182B1 (en) 2017-08-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08290257.8A Active EP1978182B1 (en) 2007-04-03 2008-03-18 Device for fixing a post to the surface of a concrete floor

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EP (1) EP1978182B1 (en)
ES (1) ES2641281T3 (en)
FR (1) FR2914672B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3077607A4 (en) * 2013-12-04 2017-07-26 BREEN, Paul Handrail assembly, system and method of installation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU194846U1 (en) * 2018-08-27 2019-12-25 Валерий Николаевич Николаев MOUNTING LOOP

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2012545A1 (en) * 1970-03-17 1971-10-07 Thyssen Rohren u Roheisenhandel GmbH, 4000 Dusseldorf Device for attaching a Ge rustes to a building wall
DE3322646A1 (en) * 1982-08-26 1984-03-08 Gebr. Philipp GmbH, 8750 Aschaffenburg Rope conveying anchor and method for manufacture
FR2871827A1 (en) * 2004-06-18 2005-12-23 Ingenierie Et Commercialisatio Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar
BE1016424A6 (en) * 2005-01-24 2006-10-03 Echo Lifting hook for prefabricated reinforced concrete slab, comprises U shaped loop section and cross direction part for positioning beneath slab reinforcing structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2012545A1 (en) * 1970-03-17 1971-10-07 Thyssen Rohren u Roheisenhandel GmbH, 4000 Dusseldorf Device for attaching a Ge rustes to a building wall
DE3322646A1 (en) * 1982-08-26 1984-03-08 Gebr. Philipp GmbH, 8750 Aschaffenburg Rope conveying anchor and method for manufacture
FR2871827A1 (en) * 2004-06-18 2005-12-23 Ingenierie Et Commercialisatio Balustrade hooking stud for building, has locking bar extending along direction orthogonal to vertical axis for retaining stud in vertical axial hole, and actuation unit cooperating with bar for controlling pivoting of bar
BE1016424A6 (en) * 2005-01-24 2006-10-03 Echo Lifting hook for prefabricated reinforced concrete slab, comprises U shaped loop section and cross direction part for positioning beneath slab reinforcing structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3077607A4 (en) * 2013-12-04 2017-07-26 BREEN, Paul Handrail assembly, system and method of installation
US10480211B2 (en) 2013-12-04 2019-11-19 Nondrill Pty Ltd Handrail assembly, system and method of installation

Also Published As

Publication number Publication date
FR2914672A1 (en) 2008-10-10
ES2641281T3 (en) 2017-11-08
EP1978182B1 (en) 2017-08-02
FR2914672B1 (en) 2010-03-19

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