EP1270845A1 - Safety walkway for shuttering device with adjustable curvature radius - Google Patents

Safety walkway for shuttering device with adjustable curvature radius Download PDF

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Publication number
EP1270845A1
EP1270845A1 EP02356113A EP02356113A EP1270845A1 EP 1270845 A1 EP1270845 A1 EP 1270845A1 EP 02356113 A EP02356113 A EP 02356113A EP 02356113 A EP02356113 A EP 02356113A EP 1270845 A1 EP1270845 A1 EP 1270845A1
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EP
European Patent Office
Prior art keywords
formwork
curvature
plate
radius
safety
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Granted
Application number
EP02356113A
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German (de)
French (fr)
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EP1270845B1 (en
Inventor
Joel Four
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Eurobress Sarl
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Eurobress Sarl
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Publication of EP1270845A1 publication Critical patent/EP1270845A1/en
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Publication of EP1270845B1 publication Critical patent/EP1270845B1/en
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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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/062—Forms for curved walls
    • E04G11/065—Forms for curved walls with mechanical means to modify the curvature
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings

Definitions

  • the present invention relates to a deformable security gateway angularly to follow the profile of a formwork device and more particularly a formwork panel with adjustable radius of curvature, for concrete structures.
  • This safety gangway has a structure that allows it to be folded for its handling or storage either in isolation or fixed on a sheet of formwork.
  • the straight gangways cannot adapt to the curved profile of the formwork formwork with adjustable radius of curvature, it was necessary to develop and realize a new security gateway which is capable of following all radii of curvature.
  • the safety gangway for formwork formwork with adjustable radius of curvature comprises circulation means which are arranged to fit and follow the radius of curvature of the formwork formwork.
  • the security gateway comprises means for which are arranged, on the one hand to pass from a folded position to a unfolded position in relation to the formwork form and on the other hand, to adapt and follow the radius of curvature of the formwork panel.
  • the security gateway comprises means for circulation which consist of a tray comprising extreme elements which are connected on the one hand to the formwork form by an articulated device and on the other hand to a central element, by a pivoting connection device, for allow the gangway to pass from a folded position to an unfolded position by report to the formwork form and follow the radius of curvature of said form formwork.
  • the security gateway according to the present invention comprises elements extremes which consist of a plate secured to a first crosspiece carrying the articulated device and a second crosspiece, parallel to the first, and comprising in its extension a connecting device.
  • the security gateway according to the present invention comprises elements extremes whose connecting device consists of a rod arranged in the extension of the cross member and of a sleeve provided at the free end of said rod.
  • the security gateway according to the present invention comprises an element central which consists of a plate having in the middle a hatch pivoting allowing access to operators on the platform.
  • the security gateway according to the present invention comprises an element central whose connecting device consists of holes, receiving respectively an axis which cooperates with the sleeve of the element connecting device extremes.
  • the security gateway according to the present invention comprises elements the crosspiece of which is secured to stirrups for fixing and pivoting bodyguards.
  • the security gateway according to the present invention comprises a tray provided with a central element whose external profile is intended to come on the one hand resting on the extreme elements and on the other hand partially covering the surface of said extreme elements.
  • the security gateway according to the present invention comprises below the central element a ladder.
  • FIGS. 1 and 2 show a safety bridge 1 in the unfolded position and permanently fixed to a formwork panel 2 with adjustable radius of curvature.
  • the formwork panel 2 is shown in the rest position, that is to say before bending and comprises a formwork sheet 3 which is integral with a set of beams holding 4.
  • the formwork panel 2 comprises, for example, a set of beams 4 which is consisting of four identical and parallel holding beams, presenting each a V-shaped profile with a truncated point.
  • the holding beams 4 are regularly spaced across the width and arranged along parallel generators over the entire height of the sheet metal formwork 3.
  • the holding beams 4 are connected together by adjustment means 5 in length extending transversely to said beams and connecting these two to two in the upper and lower part of the formwork panel 2.
  • the adjustment means 5 consist of identical angles 6 which are fixed on the truncated points and perpendicular to the holding beams 4.
  • the angles 6 of the adjustment means 5 are connected to each other by screw jacks 7 which are either separated or tightened according to the radius of curvature of bending that the formwork panel must have 2.
  • angles 6 are connected opposite to each screw jack 7 to the formwork sheet 3 by other screw jacks 8, which improve the adjustment of the radius of curvature of said formwork sheet at its free ends.
  • the formwork panel 2 comprises clamping means 9 which are arranged at the inside of each holding beam 4, for the installation of a template bending 10 in the upper and lower part of said form
  • Each clamping means 9 consists of a metal heel 11 serving clamping stop which slides parallel and above or below each holding beam 4 ( Figures 6 and 7).
  • the formwork panel 2 comprises between two pairs of holding beams 4 side members 12 which are fixed to the adjustment means 5 provided in the part lower and upper of said form.
  • the safety bridge 1 comprises circulation means which are consisting of a plate 13 which brings from a folded position and parallel to the form formwork in an unfolded position perpendicular to said form.
  • the plate 13 consists of two end elements 14 and 15 and of an element central 16 which adapt and move relative to each other to follow the curved profile of the formwork panel 2.
  • Each end element 14 and 15 is fixed to the side member 12 located in correspondence by a hinge-type device 17, allowing the plate 13 tilt or pivot around this hinge to move from one position folded and parallel to the formwork form 2, in an unfolded position and perpendicular to said form.
  • the plate 18, 19 of the end elements 14, 15 is integral with crosspieces of reinforcement 20 and 21, parallel to one another and respectively carrying the hinged devices 17 and stirrups 22, for fixing and pivoting guardrails 23 and 24 of the bridge 1.
  • Reinforcement crosspieces 20 and 21 are provided in a direction of more greater length than that provided for plates 18 and 19 and more particularly in the direction of the central element 16 of the plate 13.
  • each end element 14 and 15 is extended by a connecting device which consists of a rod 25 integral at its free end a sleeve 26 forming the pivot axis of the plate 13 so that the latter follows the curved profile of the formwork panel 2.
  • the reinforcing cross member 20 of each end element 14 and 15 is extended by a guide device which consists of a rod 41 secured at its free end a sleeve 42 forming a pivot and guide axis of the plate 13.
  • Each end element 14 and 15 has an extension 43, 44 which slides at the opposite of the connecting and guiding devices and relative to the plates 18 and 19.
  • This extension 43, 44 is intended, when the plate 13 has a particular curvature, to enlarge each extreme element 14 and 15 at the level of each end of the bridge 1.
  • the plate 27 has in its middle an articulated hatch 28 which allows access operators when the plate 13 is in the unfolded position.
  • the central element 16 comprises, opposite the hinges 29 allowing the pivoting of the hatch 28, two parallel holes 30 and 31 with a cylindrical profile or oblong, formed in the plate 27 and intended to receive respectively a connecting device formed by an axis 32 which cooperates with each sleeve 26 of the extreme elements 14 and 15.
  • the central element 16 comprises, in the plate 27 and between the hinges 29 allowing the flap 28 to pivot, two parallel holes 45 and 46 in profile cylindrical or oblong, intended respectively to receive a guide device formed of an axis 47 which cooperates with each sleeve 42 of the end elements 14 and 15.
  • holes 45 and 46 are directed in a direction which is perpendicular to that provided for holes 30 and 31.
  • the security gateway 1 comprises below the hatch central 28 a ladder 33 allowing operators to climb onto said bridge.
  • the ladder 33 is hung on the bridge 1 when the latter is located in the unfolded position and fixed to the latter by means of a bar reinforcement 34.
  • each end element 14 and 15 comprise between the stirrups 22, for the installation of the body guards 23 and 24, a U-shaped link 35 for fixing a crosspiece 36 which comes, at the opposite end, attach to the corresponding side member 12.
  • This cross 36 allows the establishment and fixing of props 37 and 38 according to the configuration sought.
  • the bending radius of the formwork panel 2 cannot be greater than the covering surface of the plate 28 of the central element 16 on the plates 18 and 19 of each end element 14 and 15.
  • the extreme elements 14 and 15 are then immobilized by devices for tightening with respect to the central element 16.
  • the extreme elements 14 and 15 are then immobilized by devices for tightening with respect to the central element 16.

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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)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

The safety platform for formwork (2) with an adjustable radius of curvature comprises circulation means adapted to the radius of curvature. The circulation means consist of a plate (13) comprising end elements (14,15) connected to the formwork by an articulated device and to a central element (16) by a pivoting connection allowing the platform to pass from folded to unfolded positions relative to the formwork and follow the formwork radius of curvature.

Description

La présente invention est relative à une passerelle de sécurité déformable angulairement pour suivre le profil d'un dispositif de coffrage et plus particulièrement une banche de coffrage à rayon de courbure réglable, pour les ouvrages en béton.The present invention relates to a deformable security gateway angularly to follow the profile of a formwork device and more particularly a formwork panel with adjustable radius of curvature, for concrete structures.

On connaít d'après le brevet français FR 90 09869 au nom du demandeur, des passerelles de sécurité à profil rectangulaire comportant un châssis sur lequel sont articulés un garde-corps et un triangle déformable, formant une chaise articulée.We know from French patent FR 90 09869 in the name of the applicant, rectangular profile safety gangways with a frame on which are articulated a railing and a deformable triangle, forming a chair articulated.

Cette passerelle de sécurité présente une structure qui permet son pliage pour sa manutention ou son stockage soit de manière isolée, soit fixée sur une banche de coffrage.This safety gangway has a structure that allows it to be folded for its handling or storage either in isolation or fixed on a sheet of formwork.

On connaít également d'après le brevet français FR 9604536 au nom du demandeur un dispositif de coffrage formant une banche de coffrage à rayon de courbure réglable pour la construction et la réalisation de murs à profil courbe.We also know from French patent FR 9604536 in the name of requesting a formwork device forming a formwork section with a radius of adjustable curvature for the construction and realization of curved profile walls.

On comprend aisément que les banches à rayon de courbure réglable doivent recevoir, comme les banches droites, des passerelles de sécurité pour la circulation des opérateurs.It is easy to understand that the formwork with adjustable radius of curvature must receive, like the straight forms, security gangways for the circulation of operators.

Les passerelles droites ne pouvant pas s 'adapter au profil courbe des banches de coffrage à rayon de courbure réglable, il a été nécessaire de développer et de réaliser une nouvelle passerelle de sécurité qui est susceptible de suivre tous les rayons de courbure.The straight gangways cannot adapt to the curved profile of the formwork formwork with adjustable radius of curvature, it was necessary to develop and realize a new security gateway which is capable of following all radii of curvature.

La passerelle de sécurité pour banche de coffrage à rayon de courbure réglable suivant la présente invention comporte des moyens de circulation qui sont agencés pour s'adapter et suivre le rayon de courbure de la banche de coffrage.The safety gangway for formwork formwork with adjustable radius of curvature according to the present invention comprises circulation means which are arranged to fit and follow the radius of curvature of the formwork formwork.

La passerelle de sécurité suivant la présente invention comporte des moyens de circulation qui sont agencés, d'une part pour passer d'une position pliée à une position dépliée par rapport à la banche de coffrage et d'autre part, pour s'adapter et suivre le rayon de courbure de la banche de coffrage. The security gateway according to the present invention comprises means for which are arranged, on the one hand to pass from a folded position to a unfolded position in relation to the formwork form and on the other hand, to adapt and follow the radius of curvature of the formwork panel.

La passerelle de sécurité suivant la présente invention comporte des moyens de circulation qui sont constitués d'un plateau comprenant des éléments extrêmes qui sont reliés d'une part à la banche de coffrage par un dispositif articulé et d'autre part à un élément central, par un dispositif de liaison pivotant, pour permettre à la passerelle de passer d'une position pliée à un position dépliée par rapport à la banche de coffrage et de suivre le rayon de courbure de ladite banche de coffrage.The security gateway according to the present invention comprises means for circulation which consist of a tray comprising extreme elements which are connected on the one hand to the formwork form by an articulated device and on the other hand to a central element, by a pivoting connection device, for allow the gangway to pass from a folded position to an unfolded position by report to the formwork form and follow the radius of curvature of said form formwork.

La passerelle de sécurité suivant la présente invention comporte des éléments extrêmes qui sont constitués d'une plaque solidaire d'une première traverse portant le dispositif articulé et d'une seconde traverse, parallèle à la première, et comportant dans son prolongement un dispositif de liaison.The security gateway according to the present invention comprises elements extremes which consist of a plate secured to a first crosspiece carrying the articulated device and a second crosspiece, parallel to the first, and comprising in its extension a connecting device.

La passerelle de sécurité suivant la présente invention comporte des éléments extrêmes dont le dispositif de liaison est constitué d'une tige disposée dans le prolongement de la traverse et d'un manchon prévu à l'extrémité libre de ladite tige.The security gateway according to the present invention comprises elements extremes whose connecting device consists of a rod arranged in the extension of the cross member and of a sleeve provided at the free end of said rod.

La passerelle de sécurité suivant la présente invention comporte un élément central qui est constitué d'une plaque comportant en son milieu une trappe pivotante permettant l'accès aux opérateurs sur le plateau.The security gateway according to the present invention comprises an element central which consists of a plate having in the middle a hatch pivoting allowing access to operators on the platform.

La passerelle de sécurité suivant la présente invention comporte un élément central dont le dispositif de liaison est constitué de trous, recevant respectivement un axe qui coopère avec le manchon du dispositif de liaison des éléments extrêmes.The security gateway according to the present invention comprises an element central whose connecting device consists of holes, receiving respectively an axis which cooperates with the sleeve of the element connecting device extremes.

La passerelle de sécurité suivant la présente invention comporte des éléments extrêmes dont la traverse est solidaire d'étriers pour la fixation et le pivotement de gardes corps.The security gateway according to the present invention comprises elements the crosspiece of which is secured to stirrups for fixing and pivoting bodyguards.

La passerelle de sécurité suivant la présente invention comporte un plateau pourvu d'un élément central dont le profil externe est prévu pour venir d'une part en appui sur les éléments extrêmes et d'autre part recouvrir partiellement la surface desdits éléments extrêmes.The security gateway according to the present invention comprises a tray provided with a central element whose external profile is intended to come on the one hand resting on the extreme elements and on the other hand partially covering the surface of said extreme elements.

La passerelle de sécurité suivant la présente invention comporte en dessous de l'élément central une échelle.The security gateway according to the present invention comprises below the central element a ladder.

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemple non limitatifs, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer:

  • Figure 1 est une vue de coté illustrant la passerelle de sécurité suivant la présente invention en position dépliée, sur une banche de coffrage à rayon de courbure réglable.
  • Figure 2 est une vue de face représentant la passerelle de sécurité suivant la présente invention en position dépliée sur une banche de coffrage à rayon de courbure réglable.
  • Figures 3, 4 et 5 sont des vues montrant les éléments constitutifs du plateau de la passerelle de sécurité suivant la présente invention.
  • Figure 6 est une vue de dessus montrant la passerelle de sécurité selon par exemple une première position courbée.
  • Figure 7 est une vue de dessus montrant la passerelle de sécurité selon par exemple une deuxième position courbée et inverse à la première.
    • The description which follows with reference to the appended drawings, given by way of nonlimiting example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:
  • Figure 1 is a side view illustrating the safety bridge according to the present invention in the unfolded position, on a formwork formwork with adjustable radius of curvature.
  • Figure 2 is a front view showing the safety bridge according to the present invention in the unfolded position on a formwork panel with adjustable radius of curvature.
  • Figures 3, 4 and 5 are views showing the components of the tray of the safety bridge according to the present invention.
  • Figure 6 is a top view showing the safety bridge in, for example, a first curved position.
  • Figure 7 is a top view showing the safety gangway for example in a second curved position and opposite to the first.

    • On a montré en figures 1 et 2 une passerelle de sécurité 1 en position dépliée et fixée à demeure sur une banche de coffrage 2 à rayon de courbure réglable.FIGS. 1 and 2 show a safety bridge 1 in the unfolded position and permanently fixed to a formwork panel 2 with adjustable radius of curvature.

    La banche de coffrage 2 est représentée en position de repos, c'est à dire avant cintrage et comprend une tôle de coffrage 3 qui est solidaire d'un jeu de poutres de maintien 4.The formwork panel 2 is shown in the rest position, that is to say before bending and comprises a formwork sheet 3 which is integral with a set of beams holding 4.

    La banche de coffrage 2 comprend, par exemple, un jeu de poutres 4 qui est constitué de quatre poutres de maintien identiques et parallèles, présentant chacune un profil en forme de V à pointe tronquée.The formwork panel 2 comprises, for example, a set of beams 4 which is consisting of four identical and parallel holding beams, presenting each a V-shaped profile with a truncated point.

    Les poutres de maintien 4 sont régulièrement espacées sur la largeur et disposées suivant des génératrices parallèles sur toute la hauteur de la tôle de coffrage 3.The holding beams 4 are regularly spaced across the width and arranged along parallel generators over the entire height of the sheet metal formwork 3.

    Les poutres de maintien 4 sont reliées entre elles par des moyens de réglage 5 en longueur s'étendant transversalement aux dites poutres et reliant celles-ci deux à deux dans la partie supérieure et inférieure de la banche de coffrage 2.The holding beams 4 are connected together by adjustment means 5 in length extending transversely to said beams and connecting these two to two in the upper and lower part of the formwork panel 2.

    Les moyens de réglage 5 sont constitués de cornières 6 identiques qui sont fixées sur les pointes tronquées et perpendiculairement aux poutres de maintien 4.The adjustment means 5 consist of identical angles 6 which are fixed on the truncated points and perpendicular to the holding beams 4.

    Les cornières 6 des moyens de réglage 5 sont raccordées l'une à l'autre par des vérins à vis 7 qui sont soit écartés, soit resserrés suivant le rayon de courbure de cintrage que doit présenter la banche de coffrage 2.The angles 6 of the adjustment means 5 are connected to each other by screw jacks 7 which are either separated or tightened according to the radius of curvature of bending that the formwork panel must have 2.

    Également, les cornières 6 sont raccordées à l'opposé de chaque vérin à vis 7 à la tôle de coffrage 3 par d'autres vérins à vis 8, qui permettent d'améliorer le réglage du rayon de courbure de la dite tôle de coffrage au niveau de ses extrémités libres.Also, the angles 6 are connected opposite to each screw jack 7 to the formwork sheet 3 by other screw jacks 8, which improve the adjustment of the radius of curvature of said formwork sheet at its free ends.

    La banche de coffrage 2 comporte des moyens de serrage 9 qui sont disposés à l'intérieur de chaque poutre de maintien 4, pour la mise en place d'un gabarit de cintrage 10 dans la partie supérieure et inférieure de ladite banche The formwork panel 2 comprises clamping means 9 which are arranged at the inside of each holding beam 4, for the installation of a template bending 10 in the upper and lower part of said form

    Chaque moyen de serrage 9 est constitué d'un talon métallique 11 faisant office de butée de serrage qui coulisse parallèlement et au-dessus ou en dessous de chaque poutre de maintien 4 (figures 6 et 7).Each clamping means 9 consists of a metal heel 11 serving clamping stop which slides parallel and above or below each holding beam 4 (Figures 6 and 7).

    La banche de coffrage 2 comporte entre deux paires de poutres de maintien 4 des longerons 12 qui sont fixés sur les moyens de réglage 5 prévus dans la partie inférieure et supérieure de ladite banche.The formwork panel 2 comprises between two pairs of holding beams 4 side members 12 which are fixed to the adjustment means 5 provided in the part lower and upper of said form.

    La passerelle de sécurité 1 comprend des moyens de circulation qui sont constitués d'un plateau 13 qui amène d'une position pliée et parallèle à la banche de coffrage à une position dépliée et perpendiculaire à ladite banche.The safety bridge 1 comprises circulation means which are consisting of a plate 13 which brings from a folded position and parallel to the form formwork in an unfolded position perpendicular to said form.

    Le plateau 13 est constitué de deux éléments extrêmes 14 et 15 et d'un élément central 16 qui s'adaptent et se déplacent les uns par rapport aux autres pour suivre le profil courbe de la banche de coffrage 2.The plate 13 consists of two end elements 14 and 15 and of an element central 16 which adapt and move relative to each other to follow the curved profile of the formwork panel 2.

    Chaque élément extrême 14 et 15 est fixé sur le longeron 12 se trouvant en correspondance par un dispositif de type charnière 17, permettant au plateau 13 de basculer ou de pivoter autour de cette charnière pour passer d'une position pliée et parallèle à la banche de coffrage 2, à une position dépliée et perpendiculaire à ladite banche.Each end element 14 and 15 is fixed to the side member 12 located in correspondence by a hinge-type device 17, allowing the plate 13 tilt or pivot around this hinge to move from one position folded and parallel to the formwork form 2, in an unfolded position and perpendicular to said form.

    En figures 3 et 4 on a représenté les éléments extrêmes 14, 15 du plateau 13, qui sont constitués respectivement d'une plaque 18, 19 dont le profil extérieur est déterminé en fonction des dimensions de la banche de coffrage 2In Figures 3 and 4 there is shown the end elements 14, 15 of the plate 13, which consist respectively of a plate 18, 19 whose external profile is determined according to the dimensions of the formwork panel 2

    La plaque 18, 19 des éléments extrêmes 14, 15 est solidaire de traverses de renfort 20 et 21, parallèles l'une par rapport à l'autre et portant respectivement les dispositifs à charnière 17 et des étriers 22, pour la fixation et le pivotement des gardes corps 23 et 24 de la passerelle 1.The plate 18, 19 of the end elements 14, 15 is integral with crosspieces of reinforcement 20 and 21, parallel to one another and respectively carrying the hinged devices 17 and stirrups 22, for fixing and pivoting guardrails 23 and 24 of the bridge 1.

    Les traverses de renfort 20 et 21 sont prévues dans une direction d'une plus grande longueur que celle prévue pour les plaques 18 et 19 et plus particulièrement en direction de l'élément central 16 du plateau 13.Reinforcement crosspieces 20 and 21 are provided in a direction of more greater length than that provided for plates 18 and 19 and more particularly in the direction of the central element 16 of the plate 13.

    La traverse de renfort 21 de chaque élément extrême 14 et 15 se prolonge par un dispositif de liaison qui est constitué d'une tige 25 solidaire à son extrémité libre d'un manchon 26 formant l'axe de pivotement du plateau 13 pour que ce dernier suive le profil courbe de la banche de coffrage 2.The reinforcing cross member 21 of each end element 14 and 15 is extended by a connecting device which consists of a rod 25 integral at its free end a sleeve 26 forming the pivot axis of the plate 13 so that the latter follows the curved profile of the formwork panel 2.

    La traverse de renfort 20 de chaque élément extrême 14 et 15 se prolonge par un dispositif de guidage qui est constitué d'une tige 41 solidaire à son extrémité libre d'un manchon 42 formant un axe de pivotement et de guidage du plateau 13. The reinforcing cross member 20 of each end element 14 and 15 is extended by a guide device which consists of a rod 41 secured at its free end a sleeve 42 forming a pivot and guide axis of the plate 13.

    Chaque élément extrême 14 et 15 comporte une rallonge 43, 44 qui coulisse à l'opposé des dispositifs de liaison et de guidage et par rapport aux plaques 18 et 19. Cette rallonge 43, 44 est destinée, lorsque le plateau 13 présente une courbure particulière, à agrandir chaque élément extrême 14 et 15 au niveau de chaque extrémité de la passerelle 1.Each end element 14 and 15 has an extension 43, 44 which slides at the opposite of the connecting and guiding devices and relative to the plates 18 and 19. This extension 43, 44 is intended, when the plate 13 has a particular curvature, to enlarge each extreme element 14 and 15 at the level of each end of the bridge 1.

    En figure 5, on a montré l'élément central 16 du plateau 13 qui est constitué d'une plaque 27 dont le profil extérieur est déterminé en fonction des dimensions de la banche de coffrage 2 et complémentaire à celui de chaque élément extrême 14, 15.In Figure 5, we have shown the central element 16 of the plate 13 which consists of a plate 27 whose external profile is determined according to the dimensions of the formwork form 2 and complementary to that of each end element 14, 15.

    La plaque 27 comporte en son milieu une trappe articulée 28 qui permet l'accès aux opérateurs lorsque le plateau 13 est en position dépliée.The plate 27 has in its middle an articulated hatch 28 which allows access operators when the plate 13 is in the unfolded position.

    L'élément central 16 comporte, à l'opposé des charnières 29 permettant le pivotement de la trappe 28, deux trous parallèles 30 et 31 à profil cylindrique ou oblong, ménagés dans la plaque 27 et destinés à recevoir respectivement un dispositif de liaison formé d'un axe 32 qui coopère avec chaque manchon 26 des éléments extrêmes 14 et 15.The central element 16 comprises, opposite the hinges 29 allowing the pivoting of the hatch 28, two parallel holes 30 and 31 with a cylindrical profile or oblong, formed in the plate 27 and intended to receive respectively a connecting device formed by an axis 32 which cooperates with each sleeve 26 of the extreme elements 14 and 15.

    L'élément central 16 comporte, dans la plaque 27 et entre les charnières 29 permettant le pivotement de la trappe 28, deux trous parallèles 45 et 46 à profil cylindrique ou oblong, destinés à recevoir respectivement un dispositif de guidage formé d'un axe 47 qui coopère avec chaque manchon 42 des éléments extrêmes 14 et 15.The central element 16 comprises, in the plate 27 and between the hinges 29 allowing the flap 28 to pivot, two parallel holes 45 and 46 in profile cylindrical or oblong, intended respectively to receive a guide device formed of an axis 47 which cooperates with each sleeve 42 of the end elements 14 and 15.

    On remarque que les trous 45 et 46 sont dirigés suivant une direction qui est perpendiculaire à celle prévue pour les trous 30 et 31.Note that the holes 45 and 46 are directed in a direction which is perpendicular to that provided for holes 30 and 31.

    Lorsque le plateau 13 est assemblé, on note que l'élément central 16 vient en appui sur les plaques 18 et 19 des éléments extrêmes 14, 15 afin de les recouvrir partiellement, tandis que les trous 30 et 31 permettent, au moyen des axes 32, de réaliser une liaison pivotante entre l'élément central 16 et chacun des éléments extrêmes 14 et 15.When the plate 13 is assembled, it is noted that the central element 16 comes in support on the plates 18 and 19 of the end elements 14, 15 in order to cover them partially, while the holes 30 and 31 allow, by means of the axes 32, to make a pivoting connection between the central element 16 and each of the elements extremes 14 and 15.

    On note que la passerelle de sécurité 1 comporte en dessous de la trappe centrale 28 une échelle 33 permettant aux opérateurs de monter sur ladite passerelle. L'échelle 33 est accrochée à la passerelle 1 lorsque cette dernière se trouve en position dépliée et fixée à cette dernière par l'intermédiaire d'une barre de renfort 34.It is noted that the security gateway 1 comprises below the hatch central 28 a ladder 33 allowing operators to climb onto said bridge. The ladder 33 is hung on the bridge 1 when the latter is located in the unfolded position and fixed to the latter by means of a bar reinforcement 34.

    On remarque que les traverses 21 de chaque élément extrême 14 et 15 comportent entre les étriers 22, pour la mise en place des gardes corps 23 et 24, une liaison 35 en forme de U pour la fixation d'une traverse 36 qui vient, à l'extrémité opposée, se fixer sur le longeron 12 correspondant. Cette traverse 36 permet la mise en place et la fixation d'étais 37 et 38 selon la configuration recherchée. Note that the cross members 21 of each end element 14 and 15 comprise between the stirrups 22, for the installation of the body guards 23 and 24, a U-shaped link 35 for fixing a crosspiece 36 which comes, at the opposite end, attach to the corresponding side member 12. This cross 36 allows the establishment and fixing of props 37 and 38 according to the configuration sought.

    On constate, lors de l'utilisation d'un étai 38, que celui-ci est relié par une plaque de pied 39 à un bracon 40 qui est fixé sur l'un des longerons 12 correspondants.We note, when using a forestay 38, that it is connected by a plate foot 39 to a bracon 40 which is fixed on one of the corresponding side members 12.

    En Figure 6, on a montré le déplacement des éléments 14, 15 et 16 les uns par rapport aux autres lors du cintrage de la banche de coffrage 2 et plus particulièrement lorsque la tôle de coffrage 3 présente un rayon de courbure convexe.In Figure 6, we have shown the displacement of elements 14, 15 and 16 by each compared to others when bending formwork form 2 and more particularly when the formwork sheet 3 has a radius of curvature convex.

    Ainsi, lors du cintrage de la banche de coffrage 2, on remarque que les éléments extrêmes 14 et 15 suivent la déformation de la banche de coffrage et s'écartent selon une direction courbe de l'élément central 16 en pivotant autour des axes 32.Thus, during the bending of the formwork form 2, it is noted that the elements extremes 14 and 15 follow the deformation of the formwork form and deviate in a curved direction of the central element 16 by pivoting around the axes 32.

    On note que le rayon de cintrage de la banche de coffrage 2 ne peut être supérieur à la surface de recouvrement de la plaque 28 de l'élément central 16 sur les plaques 18 et 19 de chaque élément extrême 14 et 15.Note that the bending radius of the formwork panel 2 cannot be greater than the covering surface of the plate 28 of the central element 16 on the plates 18 and 19 of each end element 14 and 15.

    Les éléments extrêmes 14 et 15 sont ensuite immobilisés par des dispositifs de serrage par rapport à l'élément central 16.The extreme elements 14 and 15 are then immobilized by devices for tightening with respect to the central element 16.

    En Figure 7, on a montré le déplacement des éléments 14, 15 et 16 les uns par rapport aux autres lors du cintrage de la banche de coffrage 2, et plus particulièrement lorsque la tôle de coffrage 3 présente un rayon de courbure concave.In Figure 7, we have shown the displacement of elements 14, 15 and 16 with each other. compared to others when bending formwork form 2, and more particularly when the formwork sheet 3 has a radius of curvature concave.

    Ainsi lors du cintrage de la banche de coffrage 2, on remarque que les éléments extrêmes 14 et 15 suivent la déformation de la banche de coffrage et se rapprochent selon une direction courbe de l'élément central 16, en pivotant autour des axes 32.So when bending the formwork form 2, we notice that the elements extremes 14 and 15 follow the deformation of the formwork form and approach in a curved direction of the central element 16, pivoting around axes 32.

    Dans cette position, on constate que l'élément central 16 vient recouvrir en grande partie les plaques 18 et 19 de chaque élément extrême 14 et 15 de la passerelle 1.In this position, it can be seen that the central element 16 comes to cover in large part the plates 18 and 19 of each end element 14 and 15 of the gateway 1.

    Les éléments extrêmes 14 et 15 sont ensuite immobilisés par des dispositifs de serrage par rapport à l'élément central 16.The extreme elements 14 and 15 are then immobilized by devices for tightening with respect to the central element 16.

    Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tout autre équivalent.It should also be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention which is not not come out by replacing the execution details described by any other equivalent.

    Claims (10)

    Passerelle de sécurité pour banche de coffrage (2) à rayon de courbure réglable comprenant des moyens de réglage (5), pour la déformation à un rayon de courbure déterminé d'une tôle de coffrage (3), caractérisée en ce qu'elle comporte des moyens de circulation qui sont constitués d'un plateau (13) comprenant un élément central (16), des éléments extrêmes (14, 15) qui sont reliés d'une part à la banche de coffrage (2) et d'autre part à l'élément central (16) par un dispositif de liaison pivotant (26, 32), ledit élément central (16) étant agencé pour venir prendre appui sur les éléments extrêmes (14, 15) afin de recouvrir partiellement leur surface pour que le plateau (13) suive le rayon de courbure de la banche de coffrage (2) lors de son cintrage.Safety gangway for formwork formwork (2) with adjustable radius of curvature comprising adjustment means (5), for deformation of a formwork sheet (3) to a determined radius of curvature, characterized in that it comprises circulation means which consist of a plate (13) comprising a central element (16), end elements (14, 15) which are connected on the one hand to the formwork form (2) and on the other hand to the central element (16) by a pivoting connecting device (26, 32), said central element (16) being arranged to come to bear on the extreme elements (14, 15) in order to partially cover their surface so that the plate (13) follows the radius of curvature of the formwork panel (2) during its bending. Passerelle de sécurité suivant la revendication 1, caractérisée en ce qu'elle comporte un plateau (13) qui est agencé d'une part pour passer d'une position pliée à une position dépliée par rapport à la banche de coffrage (2) et d'autre part pour s'adapter et suivre le rayon de courbure de la banche de coffrage (2) lors de son cintrage.Safety gangway according to claim 1, characterized in that it comprises a plate (13) which is arranged on the one hand to pass from a folded position to an unfolded position with respect to the formwork panel (2) and d on the other hand to adapt and follow the radius of curvature of the formwork formwork (2) during its bending. Passerelle de sécurité suivant la revendication 1, caractérisée en ce que le plateau (13) comprend des éléments extrêmes (14, 15) qui sont reliés d'une part à la banche de coffrage (2) par un dispositif articulé (17) et d'autre part à un élément central (16) par un dispositif de liaison pivotant (26, 32) pour permettre à la passerelle (1) de passer d'une position pliée à un position dépliée par rapport à la banche de coffrage (2) et de suivre le rayon de courbure de ladite banche de coffrage lors de son cintrage.Safety gangway according to claim 1, characterized in that the plate (13) comprises end elements (14, 15) which are connected on the one hand to the formwork panel (2) by an articulated device (17) and d on the other hand to a central element (16) by a pivoting connection device (26, 32) to allow the gangway (1) to pass from a folded position to an unfolded position relative to the formwork form (2) and to follow the radius of curvature of said formwork form during its bending. Passerelle de sécurité suivant la revendication 3, caractérisée en ce que les éléments extrêmes (14, 15) sont constitués d'une plaque (18, 19) solidaire d'une première traverse (20) portant le dispositif articulé (17) et d'une seconde traverse (21) parallèle à la première et comportant dans son prolongement un dispositif de liaison.Safety gangway according to claim 3, characterized in that the end elements (14, 15) consist of a plate (18, 19) integral with a first crosspiece (20) carrying the articulated device (17) and a second crosspiece (21) parallel to the first and comprising in its extension a connecting device. Passerelle de sécurité suivant la revendication 4, caractérisée en ce que le dispositif de liaison des éléments extrêmes (14, 15) est constitué d'une tige (25) disposée dans le prolongement de la traverse (21) et d'un manchon (26) prévu à l'extrémité libre de ladite tige.Safety gangway according to claim 4, characterized in that the device for connecting the end elements (14, 15) consists of a rod (25) arranged in the extension of the cross-member (21) and of a sleeve (26 ) provided at the free end of said rod. Passerelle de sécurité suivant la revendication 1, caractérisée en ce que l'élément central (16) est constitué d'une plaque (27) comportant en son milieu une trappe pivotante (28) permettant l'accès aux opérateurs sur le plateau (13).Safety gangway according to claim 1, characterized in that the central element (16) consists of a plate (27) comprising in its middle a pivoting hatch (28) allowing access to the operators on the platform (13) . Passerelle de sécurité suivant la revendication 1, caractérisée en ce que le dispositif de liaison de l'élément central (16) est constitué de trous (30, 31) recevant respectivement un axe (32) qui coopère avec le manchon (26) du dispositif de liaison des éléments extrêmes (14, 15). Safety gangway according to claim 1, characterized in that the connecting device of the central element (16) consists of holes (30, 31) receiving respectively an axis (32) which cooperates with the sleeve (26) of the device connecting the extreme elements (14, 15). Passerelle de sécurité suivant la revendication 4, caractérisée en ce que la traverse (21) de chaque élément extrême (14, 15) est solidaire d'étriers (22) pour la fixation et le pivotement de gardes corps (23, 24).Safety gangway according to claim 4, characterized in that the cross-member (21) of each end element (14, 15) is integral with stirrups (22) for fixing and pivoting of body guards (23, 24). Passerelle de sécurité suivant la revendication 3, caractérisée en ce qu'elle comporte en dessous de l'élément central (16), une échelle (33).Safety gangway according to claim 3, characterized in that it includes a ladder (33) below the central element (16). Passerelle de sécurité suivant la revendication 3, caractérisée en ce que chaque élément extrême (14, 15) comporte une rallonge (43, 44).Safety gangway according to claim 3, characterized in that each end element (14, 15) has an extension (43, 44).
    EP02356113A 2001-06-19 2002-06-17 Safety walkway for shuttering device with adjustable curvature radius Expired - Lifetime EP1270845B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0108023 2001-06-19
    FR0108023A FR2826033B1 (en) 2001-06-19 2001-06-19 SECURITY GATEWAY FOR A FORMWORK DEVICE WITH VARIABLE CURVE RADIUS

    Publications (2)

    Publication Number Publication Date
    EP1270845A1 true EP1270845A1 (en) 2003-01-02
    EP1270845B1 EP1270845B1 (en) 2009-12-16

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    ID=8864490

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02356113A Expired - Lifetime EP1270845B1 (en) 2001-06-19 2002-06-17 Safety walkway for shuttering device with adjustable curvature radius

    Country Status (6)

    Country Link
    EP (1) EP1270845B1 (en)
    AT (1) ATE452259T1 (en)
    DE (1) DE60234739D1 (en)
    ES (1) ES2338300T3 (en)
    FR (1) FR2826033B1 (en)
    PT (1) PT1270845E (en)

    Cited By (2)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2189593A1 (en) * 2008-11-25 2010-05-26 Sistemas Técnicos De Encofrados, S.A. Form adjustable panel for curved wall shuttering
    EP2599938A1 (en) 2011-12-01 2013-06-05 Société Eurobress Security footbridge with extendable brace for form panel

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    IT201700017631A1 (en) * 2017-02-16 2018-08-16 Emmerre S R L FORMWORK FOR THE CONSTRUCTION OF CONCRETE MADE DETAILS

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2442936A1 (en) * 1978-12-01 1980-06-27 Outinord St Amand Vertical shutter for in-situ concrete walls etc. - has walk-ways and hand rails which pivot flat onto rear face for transit
    FR2669363A1 (en) * 1990-11-20 1992-05-22 Peru Jean Claude Improvements to curved shutterings
    FR2704260A1 (en) * 1993-04-21 1994-10-28 Ricard Coffrages Method for curving shuttering (formwork) and curvable shuttering making use of this method
    FR2711705A1 (en) * 1993-10-27 1995-05-05 Sateco Sa Formwork device with adjustable radius of curvature, particularly for concrete constructions

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2442936A1 (en) * 1978-12-01 1980-06-27 Outinord St Amand Vertical shutter for in-situ concrete walls etc. - has walk-ways and hand rails which pivot flat onto rear face for transit
    FR2669363A1 (en) * 1990-11-20 1992-05-22 Peru Jean Claude Improvements to curved shutterings
    FR2704260A1 (en) * 1993-04-21 1994-10-28 Ricard Coffrages Method for curving shuttering (formwork) and curvable shuttering making use of this method
    FR2711705A1 (en) * 1993-10-27 1995-05-05 Sateco Sa Formwork device with adjustable radius of curvature, particularly for concrete constructions

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP2189593A1 (en) * 2008-11-25 2010-05-26 Sistemas Técnicos De Encofrados, S.A. Form adjustable panel for curved wall shuttering
    ES2349968A1 (en) * 2008-11-25 2011-01-13 Sistemas Tecnicos De Encofrados, S.A. Form adjustable panel for curved wall shuttering
    EP2599938A1 (en) 2011-12-01 2013-06-05 Société Eurobress Security footbridge with extendable brace for form panel
    FR2983505A1 (en) * 2011-12-01 2013-06-07 Eurobress SECURITY GATEWAY WITH DEPLIABLE STRETCH FOR FORMWORK BANK

    Also Published As

    Publication number Publication date
    DE60234739D1 (en) 2010-01-28
    EP1270845B1 (en) 2009-12-16
    FR2826033B1 (en) 2004-07-30
    ATE452259T1 (en) 2010-01-15
    PT1270845E (en) 2010-03-17
    FR2826033A1 (en) 2002-12-20
    ES2338300T3 (en) 2010-05-06

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