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EP2085537B1 - Method of securely installing and removing a rolling scaffold, secure guardrails used and scaffold obtained - Google Patents

Method of securely installing and removing a rolling scaffold, secure guardrails used and scaffold obtained Download PDF

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Publication number
EP2085537B1
EP2085537B1 EP09151005.7A EP09151005A EP2085537B1 EP 2085537 B1 EP2085537 B1 EP 2085537B1 EP 09151005 A EP09151005 A EP 09151005A EP 2085537 B1 EP2085537 B1 EP 2085537B1
Authority
EP
European Patent Office
Prior art keywords
rung
ledgers
hook
ladder
ledger
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.)
Not-in-force
Application number
EP09151005.7A
Other languages
German (de)
French (fr)
Other versions
EP2085537A1 (en
Inventor
Eric Sta
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.)
Tubesca Comabi SAS
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Tubesca Comabi SAS
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Filing date
Publication date
Application filed by Tubesca Comabi SAS filed Critical Tubesca Comabi SAS
Publication of EP2085537A1 publication Critical patent/EP2085537A1/en
Application granted granted Critical
Publication of EP2085537B1 publication Critical patent/EP2085537B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/14—Railings
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/154—Non-detachably fixed and secured connections between platform and scaffold
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/28—Scaffolds primarily resting on the ground designed to provide support only at a low height
    • E04G1/30—Ladder scaffolds
    • 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
    • E04G5/14—Railings
    • E04G5/147—Railings specially adapted for mounting prior to the mounting of the platform
    • 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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G2001/155—Platforms with an access hatch for getting through from one level to another

Definitions

  • the present invention relates to a method of mounting and dismounting in safety of a rolling scaffold, the safety mounting rails used and the scaffolding obtained.
  • the document FR2885927 discloses sleepers for scaffolding structure, the sleepers including hooks for cooperating with upper level rails of the scaffold.
  • each of the rails may be provided with a ramp allowing the sliding of the rail on the catch level or be of an oblong profile allowing the travel of the catch level in the hook in to allow the passage of the end hook of the bar at the level of engagement of the other ladder element.
  • the scaffolding erection operator is no longer on the upper platform of the ladder elements, being erected, without a lateral protective barrier element at an appropriate height and that it is thus in a standard safety arrangement thanks to the lower and upper rails for perform the assembly of the scaffolding.
  • the process is, moreover, simple, fast and economical.
  • the diagonal rods (at least one out of two) can be mounted after the two ladder elements are erected.
  • the invention also relates to the dismantling of the scaffolding, which is performed in the opposite manner to the aforementioned mounting method.
  • the invention also relates to smooth (smooth and under-smooth) used in the method of mounting a aforementioned rolling scaffold and the scaffold obtained comprising at least one or two smooth as defined above.
  • Each of these rails may comprise, at each of its ends, a hook and an articulated latch intended to engage in engagement with a scale element rung.
  • the lock may be self-engaging, triggered and reset by the operating hook of the boom or diagonal operating rod.
  • the front hook may be a hook with slip ramp or oblong profile capable of allowing said travel on the setting step.
  • the exemplary embodiment shown shows a rolling scaffolding 1 in progress.
  • This scaffolding 1 comprises vertically standing ladder elements 3, between which scaffold plates 5 are fixed horizontally ( Fig. 5 ), generally arranged at a regular height relative to each other.
  • the mounting of the scaffolding 1 is performed in an identical manner level by level, the first level being achieved naturally from the ground.
  • the assembly is to be performed at a level n + 1, the level n being made and comprising two vertically fixed scale elements 3 connected transversely by lateral diagonal rods 7 (arranged diagonally), one on each side and a plate scaffolding 5 fixed horizontally on the scale elements 3, substantially in their middle part.
  • the scaffold plates 5 are of the oblong hook type 9 at one of their end portion (see French patent application published under No. 2,854,915 ) allowing the assembly by a single person raising the plate 5 and the hooker at appropriate height by its oblong hooks 9, at first, at a level 11 of a ladder element 3, then raising the plate 5 by its other end for the crocheting by deflection oblong hooks 9 on its lockable hooks 13 of the opposite end portion, horizontally, on a rung 11 of the other ladder element 3.
  • the first stage of assembly at level n + 1 is to draw up two scale elements 3 ( Fig. 1 ), one on each lower corresponding ladder element (by fitting) and to equip side protectors 15, upper and lower, which are identical to each other.
  • These rails 15 are crooked horizontally on the scale elements 3 ( Fig. 3 ). They each comprise a front hook 17 positioned first ( Fig. 2 ) on a rung 11 of the ladder element, at a suitable height by inclining the rung 15 at its end to the rung, and a rear hook 19 engaged secondly on the corresponding rung 11 of the other scale element ( Fig. 3 ), the beam being raised horizontally by a pole 21 or a rod diagonal with maneuvering fork.
  • These hooks 17, 19 are each provided with a latch 17a, 19a respectively hinged to the hook (self-triggering for example by gravity or return spring) and adapted to come into engagement with the closure on the step 11 to prevent slippage side of the smooth on the latter.
  • the two ladder elements 3 are then connected to the rails in horizontal position. It is now necessary to fix the two diagonal rods 7 by their ends to the structure of the scaffolding 1, crossing them diagonally on each side of the ladder elements 3. The ladder elements 3 are then held vertically and the rigidity of the assembly is consolidated by the upper link of the rails 15. It should be noted that the mounting of the diagonal rods can also be performed previously just after the assembly of the scale elements as mentioned above.
  • a new scaffolding platform 5 ( Fig. 4 ) presenting its front part provided with elongated hooks 9 at a level 11 of one of the ladder elements 3, at a suitable distance relative to the upper and lower rails (one meter of the upper rails, for example according to the standard) and by hooking these hooks 9 on the selected step 11 by their lower opening 9a. It only remains to raise the other end of the plate 5 on a corresponding step 11 of the other ladder element 3 and, by translating the plate 5 made possible on said oblong hooks 9, to pass the end of the plate 5 above said step 11 and to engage its end hooks 13 in lock on step 11 by simple vertical application.
  • the plate 5 is now fixed horizontally on the ladder elements 3 at a distance of one meter from the upper rails and half a meter from the lower rails, parallel to these ( Fig. 5 ).
  • the scaffolding mounting operator can then access the scaffolding platform 5 by climbing the ladder element 3 close to the hatch 5a of the scaffolding plate 5a, and access the plate 5 by opening the hatch 5a.
  • the level n + 1 of the scaffolding is now mounted ( Fig. 6 ).
  • the dismantling of the scaffolding is done in a manner opposite to the assembly.
  • the front hook 17 'of the rail 15' may have an oblong profile with a lower opening 17'a passage of the rung and a hinged latch 17'b of the echelon 11 (in broken line), allowing the movement of the beam 15 'on the engagement step 11 for the passage of its end hook opposite the engagement level of the other ladder element for attachment to the latter.
  • two smooth 15 "of the same level can be connected to one another at their ends by two spacer rods 23 forming a flat frame assembly for mounting the two rails simultaneously by a maneuver similar to that of a single rail by means of a suitable diagonal rod or pole.
  • the ramps of the front hooks can be kept.
  • a single lock is useful on one of the rear hooks.
  • a diagonal rod can be used to mount the rails to the ladder elements.
  • This diagonal rod may for example be of the type described by the patent FR 2,799,783 and whose clip is cut to include only one jaw, sparing thus an axis which can be used for the suspension of the rails for their mounting on the ladder elements, by corresponding holes on the hooks and locks of the rails.
  • the invention thus provides a simple, easy and economical method of protecting the assembly and disassembly of a rolling scaffold.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ladders (AREA)

Description

La présente invention concerne un procédé de montage et démontage en sécurité d'un échafaudage roulant, les lisses de montage de sécurité utilisées et l'échafaudage obtenu.The present invention relates to a method of mounting and dismounting in safety of a rolling scaffold, the safety mounting rails used and the scaffolding obtained.

On sait que sur les échafaudages roulants de type simple, le montage successif des plinthes et des lisses au-dessus d'un plateau, à un niveau de hauteur de l'échafaudage, peut être effectué sans élément de protection latéral depuis ledit plateau, l'opérateur de montage risquant ainsi de chuter depuis la hauteur du plateau. Un tel montage est donc dangereux.It is known that on simple-type rolling scaffolds, the successive assembly of skirting boards and healds over a tray, at a height level of the scaffolding, can be carried out without lateral protection element from said tray, mounting operator may fall from the height of the board. Such an assembly is therefore dangerous.

Il est connu du document EP0913541 des plateaux d'échafaudages aptes à être crochetés sur des cadres verticaux de l'échafaudage.It is known from the document EP0913541 scaffolding trays suitable for being hooked on vertical frames of the scaffolding.

Le document FR2885927 divulgue des traverses pour structure d'échafaudage, les traverses comprenant des crochets pour coopérer avec des lisses de niveaux supérieurs de l'échafaudage.The document FR2885927 discloses sleepers for scaffolding structure, the sleepers including hooks for cooperating with upper level rails of the scaffold.

On connait le document JP2005068650 qui décrit une lisse comportant à son extrémité un crochet dont le nez est incliné pour permettre son insertion dans une plaque à trous.We know the document JP2005068650 which describes a smooth having at its end a hook whose nose is inclined to allow its insertion into a plate with holes.

On connait aussi le document FR2854915 qui décrit un plateau d'échafaudage apte à être crocheté à un échelon, le plateau comportant à une de ses extrémités un crochet et une butée.We also know the document FR2854915 which describes a scaffolding plate adapted to be hooked to a step, the plate having at one of its ends a hook and a stop.

L'invention vise à remédier à cet inconvénient et propose un procédé de montage en sécurité d'un échafaudage roulant, constitué d'éléments d'échelle dressés verticalement et de plateaux disposés horizontalement entre les files d'éléments d'échelle, caractérisé en ce que, à partir du sol ou de deux éléments d'échelle de l'échafaudage dressés verticalement et reliés transversalement par des tiges diagonales de maintien, portant un plateau d'échafaudage fixé, disposé à une certaine hauteur sur lesdits éléments d'échelle, il comprend les étapes suivantes :

  • dresser deux éléments d'échelle sur le sol ou sur chacun desdits deux éléments d'échelle fixés d'un même étage,
  • monter à l'horizontale et à hauteur adéquate sur lesdits deux éléments d'échelle des lisses supérieures et inférieures latérales (lisses et sous-lisses), à l'aide d'une perche ou d'une tige diagonale pourvue d'un crochet de manoeuvre adéquat, les lisses comportant à chacune de leurs extrémités au moins un crochet et un verrou aptes à venir en prise sur un échelon d'échelle, l'un des crochets d'extrémité étant apte à glisser sur l'échelon de prise au montage en sorte que la lisse positionnée par son crochet sur l'échelon de prise puisse glisser sur l'échelon pour permettre le recul de la lisse et l'engagement de l'autre crochet d'extrémité sur un échelon de prise de l'autre élément d'échelle,
  • le verrouillage desdits crochets chacun sur son échelon de prise, à l'aide dudit verrou, et
  • fixer les tiges diagonales des deux éléments d'échelle venant d'être dressés, solidairement à ceux-ci, pour maintenir les éléments d'échelle rigidement en position,
  • monter depuis le sol ou le plateau inférieur fixé, à une hauteur déterminée et sous les lisses, un plateau d'échafaudage sur les éléments d'échelle venant d'être dressés, en élevant sa partie d'extrémité munie de crochets oblongs de fixation, en engageant ses crochets oblongs d'extrémité sur un échelon d'un élément d'échelle et en élevant l'autre partie d'extrémité du plateau pour engager ses crochets sur un échelon de l'autre élément d'échelle, au moyen du débattement longitudinal des crochets oblongs, et à disposer ainsi le plateau, en position horizontale stable,
  • accéder au plateau venant d'être monté par une trappe du plateau à l'une de ses parties d'extrémité, et
  • monter depuis le plateau accédé les plinthes du plateau, l'opérateur étant protégé latéralement et sur la longueur du plateau par lesdites lisses montées.
The invention aims to remedy this drawback and proposes a method for securely mounting a rolling scaffold, consisting of vertically standing ladder elements and trays arranged horizontally between the rows of ladder elements, characterized in that that, from the ground or from two vertically erected scaffolding ladder elements connected transversely by diagonal holding rods, carrying a fixed scaffolding platform, arranged at a certain height on said ladder elements, includes the following steps:
  • erect two ladder elements on the floor or on each of the two ladder elements attached to the same floor,
  • horizontally and at an adequate height on said two ladder elements of the upper and lower lateral rails (smooth and under-smooth), using a pole or a diagonal rod provided a suitable operating hook, the rails having at each of their ends at least one hook and a lock adapted to engage on a scale step, one of the end hooks being able to slide on the step-on-step assembly so that the rail positioned by its hook on the setting step is slidable on the rung to allow backing of the rung and the engagement of the other end hook on a rung step the other scale element,
  • locking said hooks each on its catch level, using said lock, and
  • fixing the diagonal rods of the two ladder elements that have just been erected, solidarily with them, to hold the ladder elements rigidly in position,
  • mounting a scaffolding plate from the ground or the lower plate fixed at a given height and under the rails to the ladder elements that have just been erected, raising its end portion provided with oblong fastening hooks, by engaging its end oblong hooks on one rung of a ladder element and raising the other end portion of the turntable to engage its hooks on one rung of the other rung element, by means of travel longitudinally oblong hooks, and thus to arrange the plateau, in a stable horizontal position,
  • access to the tray that has just been mounted by a hatch of the tray at one of its end portions, and
  • mounting from the tray accessed the skirting board, the operator being protected laterally and the length of the tray by said smooth mounted.

Le crochet avant de chacune des lisses (toutes identiques) peut être pourvu d'une rampe permettant le glissement de la lisse sur l'échelon de prise ou être d'un profil oblong permettant le débattement de l'échelon de prise dans le crochet en vue de permettre le passage du crochet d'extrémité de la lisse au niveau de l'échelon de prise de l'autre élément d'échelle.The front hook of each of the rails (all identical) may be provided with a ramp allowing the sliding of the rail on the catch level or be of an oblong profile allowing the travel of the catch level in the hook in to allow the passage of the end hook of the bar at the level of engagement of the other ladder element.

Il résulte de cette disposition que l'opérateur de montage de l'échafaudage ne se trouve plus sur le plateau supérieur des éléments d'échelle, en cours de montage, sans élément barrière de protection latérale à hauteur adéquate et qu'il se trouve ainsi dans une disposition de sécurité normalisée grâce aux lisses inférieures et supérieures pour effectuer le montage de l'échafaudage. Le procédé est, en outre, simple, rapide et économique.As a result of this provision, the scaffolding erection operator is no longer on the upper platform of the ladder elements, being erected, without a lateral protective barrier element at an appropriate height and that it is thus in a standard safety arrangement thanks to the lower and upper rails for perform the assembly of the scaffolding. The process is, moreover, simple, fast and economical.

Naturellement, les tiges diagonales (au moins une sur deux) peuvent être montées après que les deux éléments d'échelle soient dressés.Naturally, the diagonal rods (at least one out of two) can be mounted after the two ladder elements are erected.

L'invention concerne aussi le démontage de l'échafaudage, lequel s'effectue de manière inverse au procédé de montage précité.The invention also relates to the dismantling of the scaffolding, which is performed in the opposite manner to the aforementioned mounting method.

L'invention concerne également les lisses (lisses et sous lisses) utilisées dans le procédé de montage d'un échafaudage roulant précité ainsi que l'échafaudage obtenu comportant au moins une ou deux lisses telles que définies précédemment.The invention also relates to smooth (smooth and under-smooth) used in the method of mounting a aforementioned rolling scaffold and the scaffold obtained comprising at least one or two smooth as defined above.

Chacune de ces lisses (identiques l'une à l'autre) peut comporter, à chacune de ses extrémités, un crochet et un verrou articulé destinés à s'engager en prise sur un échelon d'élément d'échelle. Le verrou peut être à prise automatique, déclenché et réarmé par le crochet de manoeuvre de la perche ou de la tige diagonale de manoeuvre.Each of these rails (identical to each other) may comprise, at each of its ends, a hook and an articulated latch intended to engage in engagement with a scale element rung. The lock may be self-engaging, triggered and reset by the operating hook of the boom or diagonal operating rod.

Le crochet avant peut être un crochet à rampe de glissement ou à profil oblong apte à permettre ledit débattement sur l'échelon de prise.The front hook may be a hook with slip ramp or oblong profile capable of allowing said travel on the setting step.

L'invention est illustrée plus en détail ci-après à l'aide d'un exemple de réalisation et en référence aux dessins annexés, sur lesquels :

  • la figure 1 est une vue en élévation d'un échafaudage comportant deux éléments d'échelle fixés à un certain niveau de hauteur de l'échafaudage et une lisse prête à être montée,
  • la figure 2 montre le montage d'une lisse supérieure sur lesdits éléments d'échelle fixés de la figure 1,
  • la figure 3 montre l'accrochage sur les éléments d'échelle des lisses supérieures, les lisses inférieures étant montées ensuite,
  • la figure 4 montre le montage d'un plateau d'échafaudage sur les deux éléments d'échelle,
  • la figure 5 montre le plateau monté avec les lisses,
  • la figure 6 montre le niveau d'échafaudage correspondant complètement monté, avec ses lisses de protection latérales et les plinthes du plateau,
  • la figure 7 montre un crochet d'extrémité d'une lisse à profil oblong, adaptée pour la mise en oeuvre d'un procédé de montage selon un mode de réalisation de l'invention selon une variante de réalisation, et
  • la figure 8 montre une variante de réalisation où deux lisses de même niveau sont réunies par des entretoises à forme de cadre.
The invention is illustrated in more detail below with the aid of an exemplary embodiment and with reference to the appended drawings, in which:
  • the figure 1 is an elevational view of a scaffolding having two ladder elements attached at a certain height level of the scaffold and a smoothing bar ready for mounting,
  • the figure 2 shows the mounting of a top rail on said fixed ladder elements of the figure 1 ,
  • the figure 3 shows the attachment on the scale elements of the upper rails, the lower rails being mounted next,
  • the figure 4 shows the mounting of a scaffolding platform on both scale elements,
  • the figure 5 shows the board mounted with the rails,
  • the figure 6 shows the corresponding level of scaffolding completely assembled, with its lateral protection rails and skirting boards,
  • the figure 7 shows an end hook of an oblong profile rail, adapted for implementing a mounting method according to an embodiment of the invention according to an alternative embodiment, and
  • the figure 8 shows an alternative embodiment where two smooth of the same level are joined by frame-shaped spacers.

Avec référence aux figures et en particulier à la figure 1, l'exemple de réalisation représenté montre un échafaudage roulant 1 en cours d'exécution. Cet échafaudage 1 comporte des éléments d'échelle 3 dressés verticalement et entre lesquels sont fixés horizontalement des plateaux d'échafaudage 5 (fig. 5), disposés généralement à une hauteur régulière l'un par rapport à l'autre. Le montage de l'échafaudage 1 s'effectue de manière identique niveau par niveau, le premier niveau étant réalisé naturellement à partir du sol.With reference to the figures and in particular to the figure 1 , the exemplary embodiment shown shows a rolling scaffolding 1 in progress. This scaffolding 1 comprises vertically standing ladder elements 3, between which scaffold plates 5 are fixed horizontally ( Fig. 5 ), generally arranged at a regular height relative to each other. The mounting of the scaffolding 1 is performed in an identical manner level by level, the first level being achieved naturally from the ground.

Supposons que le montage est à effectuer à un niveau n+1, le niveau n étant réalisé et comportant deux éléments d'échelle 3 fixés verticalement reliés transversalement par des tiges diagonales latérales 7 (disposées en diagonale), une de chaque côté et un plateau d'échafaudage 5 fixé horizontalement sur les éléments d'échelle 3, sensiblement en leur partie médiane.Suppose that the assembly is to be performed at a level n + 1, the level n being made and comprising two vertically fixed scale elements 3 connected transversely by lateral diagonal rods 7 (arranged diagonally), one on each side and a plate scaffolding 5 fixed horizontally on the scale elements 3, substantially in their middle part.

Il est à noter que les plateaux d'échafaudage 5 sont de type à crochets oblongs 9 à l'une de leur partie d'extrémité (cf la demande de brevet française publiée sous le n° 2 854 915 ) permettant le montage par une seule personne élevant le plateau 5 et le crochetant à hauteur adéquate par ses crochets oblongs 9, dans un premier temps, à un échelon 11 d'un élément d'échelle 3, puis élevant le plateau 5 par son autre extrémité pour le crocheter par débattement des crochets oblongs 9 sur ses crochets verrouillables 13 de la partie d'extrémité opposée, à l'horizontale, sur un échelon 11 de l'autre élément d'échelle 3.It should be noted that the scaffold plates 5 are of the oblong hook type 9 at one of their end portion (see French patent application published under No. 2,854,915 ) allowing the assembly by a single person raising the plate 5 and the hooker at appropriate height by its oblong hooks 9, at first, at a level 11 of a ladder element 3, then raising the plate 5 by its other end for the crocheting by deflection oblong hooks 9 on its lockable hooks 13 of the opposite end portion, horizontally, on a rung 11 of the other ladder element 3.

La première étape de montage de niveau n+1 consiste à dresser deux éléments d'échelle 3 (fig. 1), un sur chaque élément d'échelle correspondant inférieur (par emmanchement) et à les équiper de lisses de protection latérales 15, supérieures et inférieures, lesquelles sont identiques l'une à l'autre. Ces lisses 15 sont crochetées horizontalement sur les éléments d'échelle 3 (fig. 3). Elles comportent chacune un crochet avant 17 positionné en premier (fig. 2) sur un échelon 11 de l'élément d'échelle, à hauteur adéquate en inclinant la lisse 15 par son extrémité jusqu'à l'échelon, et un crochet arrière 19 engagé en second lieu sur l'échelon correspondant 11 de l'autre élément d'échelle (fig. 3), la lisse étant élevée à l'horizontale par une perche 21 ou une tige diagonale à fourche de manoeuvre. Ces crochets 17, 19 sont pourvus chacun d'un verrou 17a, 19a respectivement articulé au crochet (à déclenchement automatique par exemple par gravité ou ressort de rappel) et apte à venir en prise à la fermeture sur l'échelon 11 pour empêcher le glissement latéral de la lisse sur ce dernier.The first stage of assembly at level n + 1 is to draw up two scale elements 3 ( Fig. 1 ), one on each lower corresponding ladder element (by fitting) and to equip side protectors 15, upper and lower, which are identical to each other. These rails 15 are crooked horizontally on the scale elements 3 ( Fig. 3 ). They each comprise a front hook 17 positioned first ( Fig. 2 ) on a rung 11 of the ladder element, at a suitable height by inclining the rung 15 at its end to the rung, and a rear hook 19 engaged secondly on the corresponding rung 11 of the other scale element ( Fig. 3 ), the beam being raised horizontally by a pole 21 or a rod diagonal with maneuvering fork. These hooks 17, 19 are each provided with a latch 17a, 19a respectively hinged to the hook (self-triggering for example by gravity or return spring) and adapted to come into engagement with the closure on the step 11 to prevent slippage side of the smooth on the latter.

Il s'agit donc d'accrocher les deux lisses supérieures 15 puis inférieures 15 l'une après l'autre aux éléments d'échelle 3 à leur échelon de prise 11, cette opération s'effectuant par exemple sur le plateau d'échafaudage 5 de niveau n. Pour cela, on engage tout d'abord le crochet avant 17 de la lisse (celui engagé en premier) à l'échelon de prise 11, en le levant au niveau de l'échelon, puis on lève le crochet arrière 19 (opposé) à l'aide de la perche 21, puis lorsque ce crochet arrive au niveau de son échelon de prise, on fait glisser la lisse par son crochet avant 17 (fig. 2) sur la rampe 17b de ce dernier, vers l'avant tout d'abord pour passer le crochet arrière 19 au-dessus de l'échelon (fig. 3), puis vers l'arrière pour l'engager dans l'échelon. Lorsque cet engagement de crochet est effectué, il ne reste plus qu'à tourner les verrous 17a, 19a à l'aide de la perche 21 pour verrouiller la prise de crochet 17, 19 à l'échelon 11.It is therefore a question of hooking the two upper and lower rails 15 one after the other to the ladder elements 3 at their engagement level 11, this operation taking place for example on the scaffold plate 5 level n. To do this, first engages the front hook 17 of the arm (the one engaged first) at the engagement level 11, raising it at the level of the rung, then we raise the rear hook 19 (opposite) with the help of the pole 21, then when this hook reaches its catch level, the beam is dragged by its hook before 17 ( Fig. 2 ) on the ramp 17b of the latter, foremost first to pass the rear hook 19 above the rung ( Fig. 3 ), then backwards to engage him in the rung. When this hook engagement is performed, it remains only to turn the latches 17a, 19a with the pole 21 to lock the catch hook 17, 19 to 11.

Les lisses supérieures et inférieures 15 étant montées, les deux éléments d'échelle 3 sont alors reliés aux lisses en position horizontale. Il faut maintenant fixer les deux tiges diagonales 7 par leurs extrémités à la structure de l'échafaudage 1, en les croisant en diagonale de chaque côté des éléments d'échelle 3. Les éléments d'échelle 3 sont alors maintenus verticalement et la rigidité de l'assemblage est consolidée par la liaison supérieure des lisses 15. Il est à noter que le montage des tiges diagonales peut aussi être effectué antérieurement juste après le montage des éléments d'échelle comme mentionné précédemment.The upper and lower rails 15 being mounted, the two ladder elements 3 are then connected to the rails in horizontal position. It is now necessary to fix the two diagonal rods 7 by their ends to the structure of the scaffolding 1, crossing them diagonally on each side of the ladder elements 3. The ladder elements 3 are then held vertically and the rigidity of the assembly is consolidated by the upper link of the rails 15. It should be noted that the mounting of the diagonal rods can also be performed previously just after the assembly of the scale elements as mentioned above.

On peut maintenant élever depuis le plateau 5 du niveau n un nouveau plateau d'échafaudage 5 (fig. 4) en présentant sa partie antérieure munie de crochets oblongs 9 au niveau d'un échelon 11 d'un des éléments d'échelle 3, à une distance adéquate par rapport aux lisses 15 supérieures et inférieures (un mètre des lisses supérieures par exemple selon la norme) et en crochetant ces crochets 9 sur l'échelon sélectionné 11 par leur ouverture inférieure 9a. Il ne reste plus qu'à relever l'autre extrémité du plateau 5 sur un échelon 11 correspondant de l'autre élément d'échelle 3 et, en effectuant une translation du plateau 5 rendue possible sur lesdits crochets oblongs 9, de passer l'extrémité du plateau 5 au-dessus dudit échelon 11 et d'engager ses crochets d'extrémité 13 en verrouillage sur l'échelon 11 par simple application verticale. Le plateau 5 est maintenant fixé horizontalement sur les éléments d'échelle 3 à une distance d'un mètre des lisses supérieures et d'un demi mètre des lisses inférieures, parallèlement à celles-ci (fig. 5).We can now raise from plateau 5 of level n a new scaffolding platform 5 ( Fig. 4 ) presenting its front part provided with elongated hooks 9 at a level 11 of one of the ladder elements 3, at a suitable distance relative to the upper and lower rails (one meter of the upper rails, for example according to the standard) and by hooking these hooks 9 on the selected step 11 by their lower opening 9a. It only remains to raise the other end of the plate 5 on a corresponding step 11 of the other ladder element 3 and, by translating the plate 5 made possible on said oblong hooks 9, to pass the end of the plate 5 above said step 11 and to engage its end hooks 13 in lock on step 11 by simple vertical application. The plate 5 is now fixed horizontally on the ladder elements 3 at a distance of one meter from the upper rails and half a meter from the lower rails, parallel to these ( Fig. 5 ).

L'opérateur de montage de l'échafaudage peut alors accéder au plateau d'échafaudage 5 en escaladant l'élément d'échelle 3 proche de la trappe 5a du plateau d'échafaudage 5a, et accéder au plateau 5 en ouvrant cette trappe 5a.The scaffolding mounting operator can then access the scaffolding platform 5 by climbing the ladder element 3 close to the hatch 5a of the scaffolding plate 5a, and access the plate 5 by opening the hatch 5a.

Il peut maintenant monter les plinthes 5b du plateau 5, étant protégé latéralement par les lisses latérales 15 en place.It can now mount the baseboards 5b of the plate 5, being protected laterally by the lateral rails 15 in place.

Le niveau n+1 de l'échafaudage est maintenant monté (fig. 6).The level n + 1 of the scaffolding is now mounted ( Fig. 6 ).

En outre, le démontage de l'échafaudage s'effectue d'une manière inverse au montage.In addition, the dismantling of the scaffolding is done in a manner opposite to the assembly.

Selon une variante de réalisation d'une lisse adaptée pour mettre en oeuvre le procédé de montage décrit précédemment, représentée à la figure 7, le crochet avant 17' de la lisse 15' peut avoir un profil oblong avec une ouverture inférieure 17'a de passage de l'échelon et un verrou articulé 17'b de prise de l'échelon 11 (en trait interrompu), permettant le débattement de la lisse 15' sur l'échelon de prise 11 pour le passage de son crochet d'extrémité opposé à l'échelon de prise de l'autre élément d'échelle en vue de son accrochage à ce dernier.According to an alternative embodiment of a smooth adapted to implement the mounting method described above, shown in the figure 7 , the front hook 17 'of the rail 15' may have an oblong profile with a lower opening 17'a passage of the rung and a hinged latch 17'b of the echelon 11 (in broken line), allowing the movement of the beam 15 'on the engagement step 11 for the passage of its end hook opposite the engagement level of the other ladder element for attachment to the latter.

Selon une autre variante de réalisation représentée à la figure 8, deux lisses 15" de même niveau (supérieures ou inférieures) peuvent être reliées l'une à l'autre au niveau de leurs extrémités par deux tiges entretoises 23 formant un ensemble cadre plat permettant de monter les deux lisses simultanément par une manoeuvre analogue à celle d'une lisse seule au moyen d'une perche ou d'une tige diagonale adaptée. Les rampes des crochets avant peuvent être conservées. Un seul verrou est utile sur l'un des crochets arrière.According to another variant embodiment shown in figure 8 , two smooth 15 "of the same level (upper or lower) can be connected to one another at their ends by two spacer rods 23 forming a flat frame assembly for mounting the two rails simultaneously by a maneuver similar to that of a single rail by means of a suitable diagonal rod or pole.The ramps of the front hooks can be kept.A single lock is useful on one of the rear hooks.

Il est à noter qu'une tige diagonale peut être utilisée pour le montage des lisses aux éléments d'échelle. Cette tige diagonale peut par exemple être de type décrit par le brevet FR 2 799 783 et dont la pince est découpée pour ne comporter qu'une seule mâchoire, ménageant ainsi un axe qui peut servir à la suspension des lisses pour leur montage sur les éléments d'échelle, par des trous correspondants sur les crochets et verrous des lisses.It should be noted that a diagonal rod can be used to mount the rails to the ladder elements. This diagonal rod may for example be of the type described by the patent FR 2,799,783 and whose clip is cut to include only one jaw, sparing thus an axis which can be used for the suspension of the rails for their mounting on the ladder elements, by corresponding holes on the hooks and locks of the rails.

L'invention apporte ainsi un procédé simple, facile et économique de protection du montage et démontage d'un échafaudage roulant.The invention thus provides a simple, easy and economical method of protecting the assembly and disassembly of a rolling scaffold.

Claims (10)

  1. Method for safely installing a rolling scaffolding (1) consisting of ladder elements (3) raised vertically and platforms (5) arranged horizontally between the lines of ladder elements (3), characterized in that, from the ground or from two ladder elements (3) of the scaffolding (1) that are raised vertically and are connected transversely by diagonal holding bars (7), bearing a fixed scaffolding platform (5) arranged at a certain height on said ladder elements (3), it comprises the following steps:
    - raising two ladder elements (3) on the ground or on each of said two fixed ladder elements (3) of a same storey,
    - installing, horizontally and at a suitable height on said two ladder elements (3), upper and lower lateral ledgers (15) (ledgers and under-ledgers) with the aid of a pole (21) or a diagonal bar provided with a suitable handling hook, the ledgers (15) comprising at each of their ends at least one hook (17, 19) and at least one ledger (15) comprising at at least one end a lock (17a, 19a) able to engage on a ladder rung (11), one of the end hooks (17) being able to slide on the engagement rung (11) during installation such that the ledger (15) positioned by means of its hook (17) on the engagement rung (11) is able to slide on the rung (11) so as to allow the ledger to move backward such that the other end hook (19) can engage on an engagement rung (11) of the other ladder element (3),
    - locking said hooks (17, 19) on their respective engagement rungs (11) with the aid of said lock (17a, 19a), and
    - fixing the diagonal bars (7) of the two ladder elements (3) which have just been raised, securely therewith, so as to hold the ladder elements (3) rigidly in position,
    - installing from the ground or the fixed lower platform (5), at a determined height and below the ledgers (15), a scaffolding platform (5) on the ladder elements (3) which have just been raised, elevating its end portion provided with oblong fixing hooks (9), engaging its oblong end hooks (9) on a rung (11) of a ladder element (3) and elevating the other end portion of the platform (5) to engage its hooks (13) on a rung (11) of the other ladder element (3), by means of the longitudinal movement of the oblong hooks (9), and thus arranging the platform (5) in a stable horizontal position,
    - accessing the platform (5), which has just been installed, via a trapdoor (5a) of the platform at one of its end portions, and
    - installing, from the accessed platform (5), the toe boards (5b) of the platform, the operator being protected laterally and over the length of the platform (5) by said installed ledgers (15).
  2. Installation method according to Claim 1, characterized in that the front hook (17) of each of the ledgers (15) is provided with an incline (17b) allowing the ledger (15) to slide on the engagement rung (11).
  3. Installation method according to Claim 1, characterized in that the front hook (17') of each of the ledgers (15') has an oblong profile, allowing the ledger (15') to move on the engagement rung (11) in order that its end opposite the engagement rung (11) can move past the other ladder element in order that it may be hooked onto the latter.
  4. Installation method according to one of the preceding claims, characterized in that the ledgers (15") of one and the same level are connected to one another at their ends by two transom bars (23) forming a flat frame assembly by means of which it is possible to install the two ledgers (15") simultaneously, by a manipulation similar to that of a single ledger using a suitable pole or diagonal bar.
  5. Method for removing the scaffolding (1) according to one of Claims 1 to 4, characterized in that it is carried out in the reverse order of the method defined according to one of Claims 1 to 4.
  6. Ledger (15) for carrying out the method for installing and removing a rolling scaffolding (1) according to one of Claims 1 to 4 and 5 respectively, characterized in that it comprises, at each of its ends, a hook (17, 19) and in that it comprises, at at least one of its ends, an articulated lock (17a, 19a) designed to engage on an engagement rung (11) of a ladder element, the front end hook (17) being provided with an incline (17b) allowing the ledger (15) to slide on the engagement rung (11) such that the ledger (15), positioned by its hook (17) on a rung (11) can slide on the rung (11) so as to allow the ledger to move backward and the other end hook (19) to engage on a rung (11) of the other ladder element (3).
  7. Ledger according to Claim 6, characterized in that the lock (17a, 19a) is of the automatic engagement type, triggered and reset by the handling hook of the pole (21) or of the diagonal handling bar.
  8. Set of two ledgers (15") according to Claim 6, characterized in that the two ledgers (15") at the same level are connected to one another at their ends by two transom bars (23) forming a flat frame assembly by means of which it is possible to install the two ledgers (15") simultaneously, by a manipulation similar to that of a single ledger using a suitable pole or diagonal bar.
  9. Scaffolding comprising at least one or two ledgers as defined according to any one of Claims 6 to 8.
  10. Method for installing or removing a scaffolding according to one of Claims 1 to 4 or 5 respectively, characterized in that said diagonal bar comprises a clip which is cut so as to have only one jaw, thus creating an axis which can serve for suspending ledgers for their installation on the ladder elements, via corresponding holes on the hooks and locks of the ledgers.
EP09151005.7A 2008-01-22 2009-01-21 Method of securely installing and removing a rolling scaffold, secure guardrails used and scaffold obtained Not-in-force EP2085537B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0800313A FR2926575B1 (en) 2008-01-22 2008-01-22 METHOD OF ASSEMBLING AND DISASSEMBLING SAFELY OF A ROLLING SCAFFOLDING, SAFETY MOUNTING BRACKETS USED AND SCAFFOLD OBTAINED

Publications (2)

Publication Number Publication Date
EP2085537A1 EP2085537A1 (en) 2009-08-05
EP2085537B1 true EP2085537B1 (en) 2016-03-23

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EP09151005.7A Not-in-force EP2085537B1 (en) 2008-01-22 2009-01-21 Method of securely installing and removing a rolling scaffold, secure guardrails used and scaffold obtained

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EP (1) EP2085537B1 (en)
ES (1) ES2572144T3 (en)
FR (1) FR2926575B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009045596A1 (en) * 2009-10-12 2011-04-14 Peri Gmbh holder
DE102016213773A1 (en) * 2016-07-27 2018-02-01 Peri Gmbh fastener

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2770553B1 (en) * 1997-11-03 1999-12-24 Sgb Comabi ROLLING SCAFFOLD
FR2799783B1 (en) 1999-10-18 2002-01-04 Tubesca Sa DEVICE FOR FIXING DIAGONAL BARS ON SCAFFOLDING LADDERS AND SCAFFOLDING OBTAINED
FR2854915B1 (en) * 2003-05-16 2007-04-06 Tubesca SCAFFOLDING TRAY WITH EASY ASSEMBLY AND SCAFFOLDING SO AQUIPE.
JP2005068650A (en) * 2003-08-25 2005-03-17 Alinco Inc Safety handrail
FR2885927B1 (en) * 2005-05-20 2007-08-03 Claude Goudron ASSEMBLY COMPRISING A GUARD RAIL AND A PERCH FOR FASTENING THE GUARD ON THE TRAVERSE

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EP2085537A1 (en) 2009-08-05
ES2572144T3 (en) 2016-05-30
FR2926575A1 (en) 2009-07-24
FR2926575B1 (en) 2012-01-06

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