EP0035424A1 - Hanging scaffold for a building - Google Patents

Hanging scaffold for a building Download PDF

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Publication number
EP0035424A1
EP0035424A1 EP81400226A EP81400226A EP0035424A1 EP 0035424 A1 EP0035424 A1 EP 0035424A1 EP 81400226 A EP81400226 A EP 81400226A EP 81400226 A EP81400226 A EP 81400226A EP 0035424 A1 EP0035424 A1 EP 0035424A1
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EP
European Patent Office
Prior art keywords
rail
scaffolding according
arms
nacelle
spacer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81400226A
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German (de)
French (fr)
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EP0035424B1 (en
Inventor
Raymond Marteau
Marcel René Plaignaud
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Individual
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Individual
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Priority claimed from FR8003675A external-priority patent/FR2476188A1/en
Priority claimed from FR8014500A external-priority patent/FR2485599A1/en
Application filed by Individual filed Critical Individual
Priority to AT81400226T priority Critical patent/ATE7164T1/en
Publication of EP0035424A1 publication Critical patent/EP0035424A1/en
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Publication of EP0035424B1 publication Critical patent/EP0035424B1/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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/34—Mobile scaffolds; Scaffolds with mobile platforms characterised by supporting structures provided on the roofs
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • 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
    • E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
    • E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
    • E04G3/30—Mobile scaffolds; Scaffolds with mobile platforms suspended by flexible supporting elements, e.g. cables

Definitions

  • the invention relates to a flying scaffolding for buildings.
  • a flying scaffold is constituted by a nacelle which is raised or lowered as needed along an external wall by means of mittens and ropes usually fixed at hooking points arranged at the level of the roof.
  • the rail which must be carried by support members firmly anchored on the roof of the building.
  • the rail is formed of a plurality of elements assembled end to end, so that it can be adapted to the length of the facade.
  • the rail generally consists of a cylindrical tube on which the carriages can roll.
  • the wheels of the same pair arranged on the respective sides of a carriage, rotate in planes which converge downwards, while one of the carriages, said motor, further comprises a drive wheel with a rubber tire, frictionally bearing on the upper generator of the rail and integral in rotation with an external pulley maneuverable by a rope from the nacelle.
  • French patent n ° 1,297,234 provides for a winch with an endless cable and pulleys at the ends of the rail, the lateral displacement being obtained by maneuvering the winch.
  • These means are relatively complex and require the arrangement of return pulleys at the ends of the rail and of a cable running all along the rail.
  • An object of the invention is to provide a flying scaffold which is particularly well suited for working in horizontal strips along the facade of a building, comprising safety means to avoid accidents in the event of breakage of the support carriages, easily. movable and equipped easily adjustable support members to avoid any deflection of the longitudinal rail.
  • the subject of the invention is a flying scaffolding for a building, in which the nacelle is traditionally suspended from at least two carriages connected together by a removable spacer of length approximately equal to that of the nacelle used, and movable along a rail formed by a plurality of linear elements assembled, and arranged overhanging the top of the building by means of a series of support members placed on the roof, characterized in that in the vicinity of each of its ends, the spacer connecting the two carriages carries a T-shaped security bracket whose transverse bar is disposed inside the U-shaped rail, perpendicular to the longitudinal plane of symmetry of said rail and has a length greater than the spacing of the folded ends of the rail wings.
  • a rail 10 ( Figure 1), intended for the suspension and in lateral translation guidance, along the facade of a building, of a flying scaffolding nacelle (not shown), is formed by the end-to-end assembly of linear elements, namely a primer element 11, any number of intermediate elements 12 (only one in the example shown) and a terminal element 13.
  • Each element is provided with at least one suspension means (11a, 11b, 12a, 13a) arranged as will be said below -after and intended to be hung on the overhanging end of support members, shown in Figure 5, placed on the roof of said building.
  • All the elements are U-shaped profiles whose opening 14 faces downwards (FIG. 2) and which have a constant internal section from one end to the other of the rail 10.
  • the ends of the wings (10a, 10b) are folded inwards and preferably in an arc having a center angle 0 (greater than 90 °.
  • the inner face of these flaps forms the raceway of two carriages 15 and 16 each having at least two wheels such as 17 on each lateral side
  • the circular arc shape of the flaps envelops the lower part of the treads of said wheels which are thus guided without risk of lateral friction of the carriages against the internal face of the wings 10a and 10b of the rail.
  • the two carriages 15 and 16 are connected by a removable spacer 18 ( Figures 3 and 4), the length of which corresponds to that of the nacelle to be suspended and each of the carriages carries a suspension means 19 and 20 for mittens or other equivalent bodies , otherwise moored to the nacelle in a conventional manner.
  • the spacer 18 rigidly carries a bracket 21a in T whose transverse bar 21b is disposed inside the rail 10, perpendicular to the longitudinal plane of symmetry of said rail and has a length greater than the spacing of the lips of the opening 14.
  • This bracket ensures the safety of the suspension in the event of the axes of the wheels of a carriage breaking.
  • each rail element carries on its upper face two members 22, such as rings or the like for handling the element using a lifting device.
  • the rail elements are assembled end to end by embedding a female end on a male end in a movement from top to bottom.
  • the female end of the next element is lowered for assembly and locking.
  • the male end, such as 23 is free of any additional part, with the exception of an attached stop 28 carrying an ear provided with an oblong hole.
  • each element is welded on the upper face a support tab 25 whose projecting part is intended to rest on the upper face of the male end of the neighboring element.
  • a firmly welded stirrup 26 envelops the end part of the end 24 overlapping the middle part of the tab 25 and protrudes longitudinally so as to be able to overlap the end part of the end 23.
  • This stirrup 27 carries an ear 29 provided with an oblong hole, and a pin not shown, intended to secure the two elements of the rail.
  • each intermediate element 12 must have a male end 23 and a female end 24, while the initiating element 11 has a male end and is closed at the opposite end by a nozzle 31, and that the terminal element has a female end and an end closed by a nozzle 31.
  • FIG. 3 and 4 Such a system is shown in Figures 3 and 4. It includes a friction roller with a rubber bandage or the like applied against the underside of the rail 10 and fixed in rotation with a pulley 32 carried by the spacer 18 and having a trapezoidal groove - zoidal for endless rope 33, or notched for endless chain maneuverable from the nacelle.
  • the friction roller is constituted by two twin wheels 34a and 34b wedged on the same axis 35 as the pulley 32 and which apply respectively under the folded edge of each of the wings 10a and 10b of the rail. So that the pressure of the wheels 34a and 34b on the underside of the rail 10 is substantially constant despite the wear of the tires, the axis 35 pivots between the cheeks 36a and 36b of a yoke 36 articulated by the free end of said cheeks around an axis 37 passing through a socket 38 carried by the spacer 18, and subjected at its end opposite to the action of a spring 39 urging said end towards the underside of the rail 10.
  • the wheels 34a and 34b are located on the axis 35 between the cheeks 36a and 36b and the control pulley 32 is, on said axis, offset to the outside of the yoke 36.
  • a screw recall 40 makes it possible to act on the arm constituted by the yoke 36 to bring the wheels 34a, 34b out of contact with the rail 10 against the action of the spring 39, in order to allow the assembly of the assembly of suspension by engaging it at one end of the rail before fitting the end piece 31, or by engaging it from the start of assembly in the initiating element 11, before assembling the intermediate element 12 the nearest neighbor.
  • screw 40 instead of the screw 40, another equivalent means can be provided, for example a rod and cam assembly with two stable positions, or a locking device of the so-called grasshopper type, or a quick-release lever, so as to maintain it. in the compressed position of the spring 39 during the positioning of the carriages in the rail and its rapid release immediately after.
  • a rod and cam assembly with two stable positions, or a locking device of the so-called grasshopper type, or a quick-release lever, so as to maintain it. in the compressed position of the spring 39 during the positioning of the carriages in the rail and its rapid release immediately after.
  • the support member of the nacelle essentially comprises: a sole 101 with a front flap 102, intended to be placed on the top of the wall; two fixed arms 103 and 104 in a substantially vertical plane, integral with the sole 101 by means of sleeves 105, 106 and joining to carry an anchoring head 107; two movable arms 108, 109 capable of pivoting relative to the sole 101, for example by means of an axis 110 passing through the sleeves 105, 106, and approaching to carry the hooking member 111 supporting the nacelle ; and a rod 112 for adjusting the position of the mobile arms 108, 109 relative to the fixed arms 103, 104.
  • This rod 112 is provided with a drive crank 113, it is threaded and it rotates in a tube 114 for example.
  • This tube 114 is crossed by the threaded axis 115 of a shackle 116 which passes around a support axis 117 welded under the close ends of the arms 108 and 109. To the right of this axis 117, the arms 108 and 109 are slightly bent and they meet to form a sort of loop 118 beyond the latching member 111.
  • the anchoring head 107 essentially consists of a plate with raised edges and welded to the arms 103 and 104. It carries an anchoring ring 119 on which is fixed the end of a safety chain 120, the another end is fixed to the support pin 117. On the ring 119 is fixed a cable 121 intended to ensure the rear anchoring of the support member by any known means.
  • the anchoring head 107 has a simple notch 126 into which the end sleeve 127 of the threaded rod 112 is inserted.
  • This member 111 is for example a round iron rod, folded at its two ends 122, and having in its middle a curve 123 intended to receive the ring 124 for supporting a rail 125, running along a facade, and from which the basket is suspended.
  • the ring 124 When the ring 124 is housed in the curve 123, it urges it downwards, and at the same time it keeps the bent ends 122 of the hooking member 111 downwards. It therefore remains stable.
  • the support member according to the invention When the support member according to the invention is placed at the top of a wall, the sole 101 is on the wall and the flap 102 against the facade, the fixed arms 103, 104 are in a substantially vertical plane, and the rear anchoring is ensured by the cable 121 on the ring 119.
  • the threaded rod 112 is simply slid into a notch in the anchoring head 107.
  • the cranks 113 are operated to put the rail at the same height over its entire length. In the event that the mechanical connection between the threaded rod 112, the tube 114 and the shackle 116 becomes defective, the safety chain 120 could avoid an accident.
  • the threaded rod 112 can be removed from its notch; completely raise the movable arms 108, 109 against the arms fixed 103, 104 and fold the rod 112 along one of the arms 108 or 109 for example, to have a support member of reduced size, easily transportable, and which can be implemented very easily.
  • the spacer 18 is simplified and it carries in the vicinity of one of its ends a pin 52 on which pivots a bracket having a substantially horizontal arm 50 and a downwardly inclined arm 51, in the example shown.
  • a wheel 53 pivots on an axis 54.
  • a wheel 55 pivots on an axis 56. From this wheel 55, an endless rope 57 hangs freely until Platform.
  • the wheels 55 and 53 are connected to each other by means of a chain 59.
  • the wheel 53 carries an adherent external lining 60 constituted for example by a tire.
  • the length of the inclined arm and the masses of the wheel 55 and of the rope 57 are such that the wheel 53 is permanently applied against the underside of the rail.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Emergency Lowering Means (AREA)
  • Movable Scaffolding (AREA)

Abstract

1. Hung scaffolding for buildings, wherein a body or elevator is hung in a traditional way to at least two carriers (15, 16) connected to each other by a removable brace (18) having a length more orless equal to that of the elevator used, and movable along a rail (10) formed by a plurality of assembled linear elements (11, 12, 13), each of which has the shape of a U turned downwardly, the ends of the wings (10a, 10b) being folded back in order to be used as a runway for the wheels of the carriers ; scaffolding disposed overhanging at the top of the building through the agency of a plurality of support members placed on the roof, wherein ajacent each of its ends the brace (18) connecting the two carriers (15, 16) carries a T-shaped safety bracket (21a), the transverse bar (21b) of which is disposed inside the U-shaped rail (10), perpendicularly to the longitudinal plane of symetry of said rail (10), and has length greater than the spacing between the folded back ends of the wings (10a, 10b) of rail (10), and the vertical bar of which is rigidly connected to the brace (18), said brace being disposed under the rail (10).

Description

L'invention concerne un échafaudage volant pour bâtiment.The invention relates to a flying scaffolding for buildings.

Un échafaudage volant est constitué par une nacelle que l'on monte ou descend au fur et à mesure des besoins le long d'un mur extérieur au moyen de moufles et de cordes fixées usuellement en des points d'accrochage aménagés au niveau du toit.A flying scaffold is constituted by a nacelle which is raised or lowered as needed along an external wall by means of mittens and ropes usually fixed at hooking points arranged at the level of the roof.

Il est clair que les travaux s'effectuent alors sur une zone verticale et qu'il est nécessaire de déplacer les points d'accrochage pour opérer sur les zones voisines, d'où une perte de temps importante.It is clear that the work is then carried out on a vertical area and that it is necessary to move the attachment points to operate on the neighboring areas, hence a significant loss of time.

C'est pourquoi il a été imaginé d'accrocher la nacelle, non plus en des points fixes, mais à des chariots pouvant se déplacer le long d'un rail disposé en surplomb au sommet de l'édifice considéré. C'est alors le rail qui doit être porté par des organes de support solidement ancrés sur le toit du bâtiment. Bien entendu, le rail est formé d'une pluralité d'éléments assemblés bout à bout, de manière à pouvoir être adapté à la longueur de la façade.This is why it has been imagined to hang the nacelle, no longer at fixed points, but on carriages which can move along a rail arranged overhanging the top of the building considered. It is then the rail which must be carried by support members firmly anchored on the roof of the building. Of course, the rail is formed of a plurality of elements assembled end to end, so that it can be adapted to the length of the facade.

Dans les dispositifs existants, le rail est généralement constitué par un tube cylindrique sur lequel les chariots peuvent rouler. Les roues d'une même paire, disposées sur les côtés respectifs d'un chariot, tournent dans des plans qui convergent vers le bas, tandis que l'un des chariots, dit moteur, comporte, en outre, une roue d'entraînement à bandage caoutchouc, en appui à friction sur la génératrice supérieure du rail et solidaire en rotation d'une poulie extérieure manoeuvrable par une corde à partir de la nacelle.In existing devices, the rail generally consists of a cylindrical tube on which the carriages can roll. The wheels of the same pair, arranged on the respective sides of a carriage, rotate in planes which converge downwards, while one of the carriages, said motor, further comprises a drive wheel with a rubber tire, frictionally bearing on the upper generator of the rail and integral in rotation with an external pulley maneuverable by a rope from the nacelle.

Une telle disposition présente un certain nombre d'inconvénients dont certains sont importants. Tout d'abord la convergence des plans des roues entraîne un effet de pincement du rail, qui augmente sensiblement l'effort nécessaire au déplacement. Cette même convergence fait que les axes de roues travaillent à la torsion. Ces deux conséquences de la convergence des roues amènent à limiter la charge totale à une valeur inférieure à celle compatible avec la résistance du rail. Enfin, le chemin de roulement des roues des chariots et de la roue d'entraînement n'est pas protégé et peut être encombré par un obstacle venu de façon accidentelle (débris de matériaux) ou déposé par inattention (planche, barre, outil, etc.) et qui empêche le mouvement de translation.Such an arrangement has a number of drawbacks, some of which are significant. First of all, the convergence of the planes of the wheels results in a pinching effect on the rail, which appreciably increases the force necessary for movement. This same convergence causes the wheel axles to work at torsion. These two consequences of the convergence of the wheels lead to limiting the total load to a value lower than that compatible with the resistance of the rail. Finally, the raceway of the wheels of the carriages and of the drive wheel is not protected and can be obstructed by an obstacle accidentally come (material debris) or deposited by carelessness (board, bar, tool, etc. .) and which prevents the translational movement.

Pour éviter cet inconvénient, il est prévu par le brevet ETATS-UNIS n° 2.178.956 d'utiliser un rail à section en U dont l'ouverture est tournée vers le bas et dont les ailes sont rabattues vers l'intérieur pour constituer le chemin de roulement du chariot.To avoid this drawback, it is provided by US Patent No. 2,178,956 to use a U-section rail whose opening is turned downward and whose wings are folded inward to form the carriage track.

Pour le déplacement de la nacelle par rapport au rail de support, le brevet français n° 1.297.234 prévoit un treuil avec un câble sans fin et des poulies de renvoi aux extrémités du rail, le déplacement latéral étant obtenu par manoeuvre du treuil. Ces moyens sont relativement complexes et imposent la disposition de poulies de renvoi aux extrémités du rail et d'un câble courant tout le long du rail.For the displacement of the nacelle relative to the support rail, French patent n ° 1,297,234 provides for a winch with an endless cable and pulleys at the ends of the rail, the lateral displacement being obtained by maneuvering the winch. These means are relatively complex and require the arrangement of return pulleys at the ends of the rail and of a cable running all along the rail.

Un but de l'invention est de réaliser un échafaudage volant particulièrement bien adapté pour le travail en bandes horizontales le long de la façade d'un bâtiment, comportant des moyens de sécurité pour éviter les accidents en cas de rupture des chariots de support, facilement déplaçable et muni d'organes de support facilement réglables pour éviter toute flèche du rail longitudinal.An object of the invention is to provide a flying scaffold which is particularly well suited for working in horizontal strips along the facade of a building, comprising safety means to avoid accidents in the event of breakage of the support carriages, easily. movable and equipped easily adjustable support members to avoid any deflection of the longitudinal rail.

L'invention a pour objet un échafaudage volant pour bâtiment, dans lequel la nacelle est suspendue de façon traditionnelle à au moins deux chariots reliés entre eux par une entretoise amovible de longueur à peu près égale à celle de la nacelle utilisée, et déplaçables le long d'un rail formé d'une pluralité d'éléments linéaires assemblés, et disposé en surplomb au sommet du bâtiment grâce à une série d'organes de support placés sur le toit, caractérisé en ce qu'au voisinage de chacune de ses extrémités, l'entretoise reliant les deux chariots porte une potence de sécurité en T dont la barre transversale est disposée à l'intérieur du rail en U, perpendiculairement au plan de symétrie longitudinal dudit rail et présente une longueur supérieure à l'espacement des extrémités rabattues des ailes du rail.The subject of the invention is a flying scaffolding for a building, in which the nacelle is traditionally suspended from at least two carriages connected together by a removable spacer of length approximately equal to that of the nacelle used, and movable along a rail formed by a plurality of linear elements assembled, and arranged overhanging the top of the building by means of a series of support members placed on the roof, characterized in that in the vicinity of each of its ends, the spacer connecting the two carriages carries a T-shaped security bracket whose transverse bar is disposed inside the U-shaped rail, perpendicular to the longitudinal plane of symmetry of said rail and has a length greater than the spacing of the folded ends of the rail wings.

Selon d'autres caractéristiques de l'invention:

  • - les éléments linéaires disposés bout à bout pour constituer le rail sont assemblés par encastrement, en un déplacement du haut vers le bas, d'une extrémité femelle sur une extrémité mâle, l'extrémité femelle portant une pièce d'appui destinée à venir reposer sur la face supérieure de l'extrémité mâle et à y être verrouillée;
  • - le rail comporte un nombre quelconque d'éléments intermédiaires présentant chacun une extrémité mâle et une extrémité femelle, un élément amorce fermé à un bout et présentant à l'autre une extrémité mâle et un élément terminal fermé à un bout et présentant à l'autre une extrémité femelle, tandis que chaque élément de rail est muni d'un moyen de suspension aux organes de support, à faible distance de son extrémité mâle et de son extrémité fermée pour les éléments extrêmes;
  • - la manoeuvre de translation latérale est réalisée par traction sur l'un ou l'autre de deux câbles amarrés respectivement aux extrémités du rail et venant chacun pendre à la verticale de la nacelle après passage sur une poulie de renvoi disposée sur le chariot correspondant;
  • - le mouvement de translation de l'ensemble de suspension constitué par les deux chariots et leur entretoise, est obtenu par la manoeuvre, depuis la nacelle, d'une corde ou d'une chaîne sans fin coopérant avec une poulie à gorge portée par l'entretoise et solidaire en rotation d'un rouleau à friction à bandage caoutchouc ou similaire appliqué contre la face inférieure du rail;
  • - le rouleau à friction est constitué par deux roues jumelées qui s'appliquent respectivement sous le bord rabattu de chacune des ailes du rail;
  • - le rouleau à friction est porté par un bras articulé par l'une de ses extrémités sur l'entretoise et soumis au voisinage de l'extrémité opposée à l'action d'un ressort le sollicitant en direction du rail;
  • - chaque organe de support comporte une semelle destinée à être placée au sommet d'un mur; deux bras fixes dans un plan sensiblement vertical, solidaires de la semelle et se rapprochant pour porter une tête d'ancrage; deux bras mobiles susceptibles de pivoter par rapport à la semelle et se rapprochant pour porter l'organe d'accrochage supportant la nacelle; et une tige de réglage de la position des bras mobiles par rapport aux bras fixes;
  • - les bras mobiles sont solidaires d'un axe pivotant sur la semelle;
  • - la tête d'ancrage est constituée par une plaque à bords repliés et soudés aux bras fixes et elle porte un anneau d'ancrage susceptible de recevoir un câble;
  • - la tête d'ancrage présente une encoche dans laquelle vient s'insérer le manchon d'extrémité de ladite tige de réglage;
  • - la tige de réglage présente une manivelle à son extrémité et elle tourne dans un tube fixé au voisinage de l'organe d'accrochage, à un axe de support solidaire des bras mobiles;
  • - une chaîne de sécurité est disposée entre ledit axe de support et l'anneau d'ancrage;
  • - l'organe d'accrochage est une tige repliée à ses extrémités et présentant au milieu une incurvation.
According to other characteristics of the invention:
  • the linear elements arranged end to end to constitute the rail are assembled by embedding, in a displacement from the top to the bottom, from a female end to a male end, the female end carrying a support piece intended to come to rest on the upper face of the male end and to be locked there;
  • - The rail comprises any number of intermediate elements each having a male end and a female end, a primer element closed at one end and having at the other a male end and a terminal element closed at one end and having at the another female end, while each rail element is provided with a means of suspension from the support members, a short distance from its male end and its closed end for the extreme elements;
  • - the lateral translation maneuver is carried out by traction on one or the other of two cables moored respectively at the ends of the rail and each coming to hang vertically from the nacelle after passing over a deflection pulley disposed on the corresponding carriage;
  • - The translational movement of the suspension assembly constituted by the two carriages and their spacer, is obtained by the operation, from the nacelle, of an endless rope or chain cooperating with a grooved pulley carried by the 'spacer and integral in rotation with a friction roller with a rubber bandage or the like applied against the underside of the rail;
  • - The friction roller is constituted by two twin wheels which are applied respectively under the folded edge of each of the wings of the rail;
  • - The friction roller is carried by an arm articulated by one of its ends on the spacer and subjected in the vicinity of the end opposite to the action of a spring urging it in the direction of the rail;
  • - Each support member comprises a sole intended to be placed at the top of a wall; two fixed arms in a substantially vertical plane, integral with the sole and approaching to carry an anchoring head; two movable arms capable of pivoting with respect to the sole and approaching to carry the attachment member supporting the nacelle; and a rod for adjusting the position of the movable arms relative to the fixed arms;
  • - the movable arms are integral with a pivoting axis on the sole;
  • the anchoring head consists of a plate with folded edges welded to the fixed arms and it carries an anchoring ring capable of receiving a cable;
  • - The anchor head has a notch in which is inserted the end sleeve of said adjustment rod;
  • - The adjustment rod has a crank at its end and it rotates in a tube fixed in the vicinity of the attachment member, to a support axis secured to the movable arms;
  • - A safety chain is arranged between said support axis and the anchoring ring;
  • - The hooking member is a rod folded at its ends and having a curvature in the middle.

L'invention sera mieux comprise et d'autres caractéristiques apparaîtront à la lecture de la description qui va suivre d'un mode préféré de réalisation donné à titre d'exemple non limitatif, description qui se réfère au dessin annexé dans lequel:

  • La figure 1 montre, assemblés, les trois types d'éléments constitutifs d'un rail selon l'invention;
  • La figure 2 est, à plus grande échelle, une vue en bout du rail dans lequel est engagé un chariot;
  • La figure 3 représente l'ensemble de suspension constitué de deux chariots et d'une entretoise et,
  • La figure 4 est une vue de dessus de l'entretoise de l'ensemble de suspension avec son bras articulé porteur des roues à friction d'entraînement en translation latérale;
  • La figure 5, une vue perspective d'un exemple de réalisation d'un organe de support d'échafaudage volant selon l'invention;
  • La figure 6, une vue de détail de l'organe d'accrochage selon un exemple de réalisation de l'invention;
  • La figure 7, une variante de réalisation de la figure 3.
The invention will be better understood and other characteristics will appear on reading the description which follows of a preferred embodiment given by way of nonlimiting example, description which refers to the appended drawing in which:
  • Figure 1 shows, assembled, the three types of components of a rail according to the invention;
  • Figure 2 is, on a larger scale, an end view of the rail in which is engaged a carriage;
  • FIG. 3 represents the suspension assembly consisting of two carriages and a spacer and,
  • Figure 4 is a top view of the spacer of the suspension assembly with its articulated arm carrying the friction drive wheels in lateral translation;
  • Figure 5, a perspective view of an exemplary embodiment of a flying scaffolding support member according to the invention;
  • Figure 6, a detailed view of the fastening member according to an exemplary embodiment of the invention;
  • FIG. 7, an alternative embodiment of FIG. 3.

Sur le dessin, un rail 10 (figure 1), destiné à la suspension et au guidage en translation latérale, le long de la façade d'un bâtiment, d'une nacelle d'échafaudage volant (non représentée), est constitué par l'assemblage bout à bout d'éléments linéaires à savoir un élément amorce 11, un nombre quelconque d'éléments intermédiaires 12 (un seul dans l'exemple représenté) et un élément terminal 13. Chaque élément est muni d'au moins un moyen de suspension (11a, 11b, 12a, 13a) disposé comme il sera dit ci-après et destiné à être accroché à l'extrémité en surplomb d'organes de support, représentés figure 5, placés sur le toit dudit bâtiment.In the drawing, a rail 10 (Figure 1), intended for the suspension and in lateral translation guidance, along the facade of a building, of a flying scaffolding nacelle (not shown), is formed by the end-to-end assembly of linear elements, namely a primer element 11, any number of intermediate elements 12 (only one in the example shown) and a terminal element 13. Each element is provided with at least one suspension means (11a, 11b, 12a, 13a) arranged as will be said below -after and intended to be hung on the overhanging end of support members, shown in Figure 5, placed on the roof of said building.

Tous les éléments sont des profilés en U dont l'ouverture 14 est tournée vers le bas (figure 2) et qui présentent une section intérieure constante d'un bout à l'autre du rail 10. Les extrémités des ailes (10a, 10b) sont rabattues vers l'intérieur et de préférence, selon un arc de cercle ayant un angle au centre 0( supérieur à 90°. La face intérieure de ces rabats forme le chemin de roulement de deux chariots 15 et 16 ayant chacun au moins deux roues telles que 17 sur chaque côté latéral. La forme en arc de cercle des rabats enveloppe la partie inférieure des bandes de roulement desdites roues qui sont ainsi guidées sans risque de frottement latéraux des chariots contre la face interne des ailes 10a et 10b du rail.All the elements are U-shaped profiles whose opening 14 faces downwards (FIG. 2) and which have a constant internal section from one end to the other of the rail 10. The ends of the wings (10a, 10b) are folded inwards and preferably in an arc having a center angle 0 (greater than 90 °. The inner face of these flaps forms the raceway of two carriages 15 and 16 each having at least two wheels such as 17 on each lateral side The circular arc shape of the flaps envelops the lower part of the treads of said wheels which are thus guided without risk of lateral friction of the carriages against the internal face of the wings 10a and 10b of the rail.

Les deux chariots 15 et 16 sont reliés par une entretoise 18 amovible (figures 3 et 4), dont la longueur correspond à celle de la nacelle à suspendre et chacun des chariots porte un moyen de suspension 19 et 20 pour des moufles ou autres organes équivalents, amarrés par ailleurs à la nacelle de façon classique.The two carriages 15 and 16 are connected by a removable spacer 18 (Figures 3 and 4), the length of which corresponds to that of the nacelle to be suspended and each of the carriages carries a suspension means 19 and 20 for mittens or other equivalent bodies , otherwise moored to the nacelle in a conventional manner.

Au voisinage de chacune de ses extrémités, l'entretoise 18 porte rigidement une potence 21a en T dont la barre transversale 21b est disposée à l'intérieur du rail 10, perpendiculairement au plan de symétrie longitudinal dudit rail et présente une longueur supérieure à l'écartement des lèvres de l'ouverture 14. Cette potence assure la sécurité de la suspension dans le cas de rupture des axes des roues d'un chariot.In the vicinity of each of its ends, the spacer 18 rigidly carries a bracket 21a in T whose transverse bar 21b is disposed inside the rail 10, perpendicular to the longitudinal plane of symmetry of said rail and has a length greater than the spacing of the lips of the opening 14. This bracket ensures the safety of the suspension in the event of the axes of the wheels of a carriage breaking.

En revenant à la figure 1, on voit que, outre les moyens de suspension (11a, 11b ou 12a ou 13a), chaque élément de rail porte sur sa face supérieure deux organes 22, tels que des anneaux ou similaires pour la manutention de l'élément à l'aide d'un appareil de levage. Les éléments du rail sont assemblés bout à bout par encastrement d'une extrémité femelle sur une extrémité mâle en un déplacement du haut vers le bas. Autrement dit, sur l'extrémité mâle d'un élément déjà en place, on fait descendre l'extrémité femelle de l'élément suivant pour assemblage et verrouillage. Dans l'exemple représenté l'extrémité mâle, telle que 23 est vierge de toute pièce complémentaire, à l'exception d'une butée rapportée 28 portant une oreille munie d'un trou oblong. A l'extrémité femelle 24 de chaque élément est soudée sur la face supérieure une patte d'appui 25 dont la partie débordante est destinée à reposer sur la face supérieure de l'extrémité mâle de l'élément voisin. Un étrier 26 fermement soudé enveloppe la partie extrême de l'extrémité 24 en chevauchant la partie médiane de la patte 25 et fait saillie longitudinalement pour pouvoir venir chevaucher la partie extrême de l'extrémité 23. En même temps, un étrier 27, fixé au voisinage de l'extrémité débordante de la patte 25, vient coiffer l'extrémité 23, derrière la butée 28. Cet étrier 27 porte une oreille 29 munie d'un trou oblong, et une goupille non représentée, destinée à solidariser les deux éléments du rail. Pour assurer la rigidité de cet assemblage, il est avantageux d'organiser un encastrement forcé de l'étrier 27 contre la butée 28 et, pour faciliter la manoeuvre, de prévoir pour les ailes de l'étrier, côté butée, des pans coupés tels que 30 en partie basse. Il est clair que chaque élément intermédiaire 12 doit présenter une extrémité mâle 23 et une extrémité femelle 24, tandis que l'élément amorce 11 présente une extrémité mâle et est fermé à l'extrémité opposée par un embout 31, et que l'élément terminal présente une extrémité femelle et une extrémité fermée par un embout 31.Returning to FIG. 1, it can be seen that, in addition to the suspension means (11a, 11b or 12a or 13a), each rail element carries on its upper face two members 22, such as rings or the like for handling the element using a lifting device. The rail elements are assembled end to end by embedding a female end on a male end in a movement from top to bottom. In other words, on the male end of an element already in place, the female end of the next element is lowered for assembly and locking. In the example shown the male end, such as 23 is free of any additional part, with the exception of an attached stop 28 carrying an ear provided with an oblong hole. At the female end 24 of each element is welded on the upper face a support tab 25 whose projecting part is intended to rest on the upper face of the male end of the neighboring element. A firmly welded stirrup 26 envelops the end part of the end 24 overlapping the middle part of the tab 25 and protrudes longitudinally so as to be able to overlap the end part of the end 23. At the same time, a stirrup 27, fixed to the vicinity of the projecting end of the tab 25, covers the end 23, behind the stop 28. This stirrup 27 carries an ear 29 provided with an oblong hole, and a pin not shown, intended to secure the two elements of the rail. To ensure the rigidity of this assembly, it is advantageous to organize a forced embedding of the stirrup 27 against the stop 28 and, to facilitate the maneuver, to provide for the wings of the stirrup, stop side, cut sides such only 30 at the bottom. It is clear that each intermediate element 12 must have a male end 23 and a female end 24, while the initiating element 11 has a male end and is closed at the opposite end by a nozzle 31, and that the terminal element has a female end and an end closed by a nozzle 31.

Etant donné que l'extrémité femelle 24 repose sur l'extrémité mâle 23 contiguë, c'est évidemment cette dernière qui doit être soutenue et c'est à son voisinage qu'est disposé le moyen de suspension (ici un arceau) 11a, 12a, 13a, l'élément amorce étant muni, lui, d'un second moyen de suspension 11b près de son extrémité fermée.Since the female end 24 rests on the adjoining male end 23, it is obviously the latter which must be supported and it is in its vicinity that the means of suspension (here a hoop) 11a, 12a, 13a, the initiating element being provided, for its part, with a second suspension means 11b near its closed end.

Pour déplacer latéralement l'ensemble de suspension constitué par les deux chariots 15 et 16 et l'entretoise 18, il est possible de disposer sur chacun des chariots une poulie folle (non représentée) à gorge sur laquelle passe un câble amarré par l'une de ses extrémités à l'extrémité correspondante du rail 10 et dont l'autre pend librement à la verticale de la nacelle.To laterally move the suspension assembly constituted by the two carriages 15 and 16 and the spacer 18, it is possible to have on each of the carriages a crazy pulley (not shown) with groove on which passes a cable moored by one from its ends to the corresponding end of the rail 10 and the other of which hangs freely over the vertical of the nacelle.

Toutefois, cette disposition particulièrement simple, n'est possible que pour une façade de faible longueur. Pour des dimensions plus importantes il est nécessaire de prévoir un système d'entraînement plus élaboré. Un tel système est représenté aux figures 3 et 4. Il comporte un rouleau à friction à bandage caoutchouc ou similaire appliqué contre la face inférieure du rail 10 et solidaire en rotation d'une poulie 32 portée par l'entretoise 18 et présentant une gorge trapé- zoidale pour corde sans fin 33, ou crantée pour chaîne sans fin manoeuvrable depuis la nacelle.However, this particularly simple arrangement is only possible for a short facade. For larger dimensions it is necessary to provide a more elaborate drive system. Such a system is shown in Figures 3 and 4. It includes a friction roller with a rubber bandage or the like applied against the underside of the rail 10 and fixed in rotation with a pulley 32 carried by the spacer 18 and having a trapezoidal groove - zoidal for endless rope 33, or notched for endless chain maneuverable from the nacelle.

Dans l'exemple représenté, le rouleau à friction est constitué par deux roues jumelées 34a et 34b calées sur le même axe 35 que la poulie 32 et qui s'appliquent respectivement sous le bord rabattu de chacune des ailes 10a et 10b du rail. Pour que la pression des roues 34a et 34b sur la face inférieure du rail 10 soit sensiblement constante malgré l'usure des bandages, l'axe 35 tourillonne entre les joues 36a et 36b d'une chape 36 articulée par l'extrémité libre desdites joues autour d'un axe 37 traversant une douille 38 portée par l'entretoise 18, et soumise à son extrémité opposée à l'action d'un ressort 39 sollicitant ladite extrémité vers la face inférieure du rail 10. Les roues 34a et 34b sont situées sur l'axe 35 entre les joues 36a et 36b et la poulie de commande 32 est, sur ledit axe, déportée à l'extérieur de la chape 36. Enfin, une vis de rappel 40 permet d'agir sur le bras constitué par la chape 36 pour amener les roues 34a, 34b hors contact du rail 10 à l'encontre de l'action du ressort 39, afin de permettre la mise en place de l'ensemble de suspension en l'engageant par l'une des extrémités du rail avant la pose de l'embout 31, ou encore en l'engageant dès le début du montage dans l'élément amorce 11, avant l'assemblage de l'élément intermédiaire 12 le plus voisin.In the example shown, the friction roller is constituted by two twin wheels 34a and 34b wedged on the same axis 35 as the pulley 32 and which apply respectively under the folded edge of each of the wings 10a and 10b of the rail. So that the pressure of the wheels 34a and 34b on the underside of the rail 10 is substantially constant despite the wear of the tires, the axis 35 pivots between the cheeks 36a and 36b of a yoke 36 articulated by the free end of said cheeks around an axis 37 passing through a socket 38 carried by the spacer 18, and subjected at its end opposite to the action of a spring 39 urging said end towards the underside of the rail 10. The wheels 34a and 34b are located on the axis 35 between the cheeks 36a and 36b and the control pulley 32 is, on said axis, offset to the outside of the yoke 36. Finally, a screw recall 40 makes it possible to act on the arm constituted by the yoke 36 to bring the wheels 34a, 34b out of contact with the rail 10 against the action of the spring 39, in order to allow the assembly of the assembly of suspension by engaging it at one end of the rail before fitting the end piece 31, or by engaging it from the start of assembly in the initiating element 11, before assembling the intermediate element 12 the nearest neighbor.

A la place de la vis 40, on peut prévoir un autre moyen équivalent, par exemple un ensemble de bielle et de came à deux positions stables, ou un verroudu type dit sauterelle, ou un levier à libération rapide, de façon à assurer le maintien en position comprimée du ressort 39 pendant la mise en place des chariots dans le rail et sa libération rapide immédiatement après.Instead of the screw 40, another equivalent means can be provided, for example a rod and cam assembly with two stable positions, or a locking device of the so-called grasshopper type, or a quick-release lever, so as to maintain it. in the compressed position of the spring 39 during the positioning of the carriages in the rail and its rapid release immediately after.

En se reportant à la figure 5, on voit que l'organe de support de la nacelle comprend essentiellement: une semelle 101 avec un rabat frontal 102, destinée à être posée sur le sommet du mur; deux bras fixes 103 et 104 dans un plan sensiblement vertical, solidaires de la semelle 101 par l'intermédiaire de manchons 105, 106 et se rejoignant pour porter une tête d'ancrage 107; deux bras mobiles 108, 109 susceptibles de pivoter par rapport à la semelle 101, par exemple par l'intermédiaire d'un axe 110 passant dans les manchons 105, 106, et se rapprochant pour porter l'organe d'accrochage 111 supportant la nacelle; et une tige 112 de réglage de la position des bras mobiles 108, 109 par rapport aux bras fixes 103, 104.Referring to Figure 5, we see that the support member of the nacelle essentially comprises: a sole 101 with a front flap 102, intended to be placed on the top of the wall; two fixed arms 103 and 104 in a substantially vertical plane, integral with the sole 101 by means of sleeves 105, 106 and joining to carry an anchoring head 107; two movable arms 108, 109 capable of pivoting relative to the sole 101, for example by means of an axis 110 passing through the sleeves 105, 106, and approaching to carry the hooking member 111 supporting the nacelle ; and a rod 112 for adjusting the position of the mobile arms 108, 109 relative to the fixed arms 103, 104.

Cette tige 112 est munie d'une manivelle d'entraînement 113, elle est filetée et elle tourne dans un tube 114 par exemple. Ce tube 114 est traversé par l'axe fileté 115 d'une manille 116 qui passe autour d'un axe de support 117 soudé sous les extrémités rapprochées des bras 108 et 109. Au droit de cet axe 117, les bras 108 et 109 sont légèrement coudés et ils se rejoignent pour former une sorte de boucle 118 au-delà de l'organe d'accrochage 111.This rod 112 is provided with a drive crank 113, it is threaded and it rotates in a tube 114 for example. This tube 114 is crossed by the threaded axis 115 of a shackle 116 which passes around a support axis 117 welded under the close ends of the arms 108 and 109. To the right of this axis 117, the arms 108 and 109 are slightly bent and they meet to form a sort of loop 118 beyond the latching member 111.

La tête d'ancrage 107 est constituée essentiellement par une plaque à bords relevés et soudés sur les bras 103 et 104. Elle porte un anneau d'ancrage 119 sur lequel est fixée l'extrémité d'une chaîne 120 de sécurité, dont l'autre extrémité est fixée à l'axe de support 117. Sur l'anneau 119 vient se fixer un câble 121 destiné à assurer l'ancrage arrière de l'organe de support selon tout moyen connu.The anchoring head 107 essentially consists of a plate with raised edges and welded to the arms 103 and 104. It carries an anchoring ring 119 on which is fixed the end of a safety chain 120, the another end is fixed to the support pin 117. On the ring 119 is fixed a cable 121 intended to ensure the rear anchoring of the support member by any known means.

La tête d'ancrage 107 présente une simple encoche 126 dans laquelle vient s'insérer le manchon d'extrémité 127 de la tige filetée 112.The anchoring head 107 has a simple notch 126 into which the end sleeve 127 of the threaded rod 112 is inserted.

Sur la figure 6, on voit comment se place l'organe d'accrochage 111 sur les prolongements des bras 108 et 109. Cet organe 111 est par exemple une tige de fer rond, repliée à ses deux extrémités 122, et présentant en son milieu une incurvation 123 destinée à recevoir l'anneau 124 de support d'un rail 125, courant le long d'une façade, et auquel est suspenduela nacelle. Lorsque l'anneau 124 est logé dans l'incurvation 123, il la sollicite vers le bas, et en même temps il maintient vers le bas les extrémités coudées 122 de l'organe d'accrochage 111. Celui-ci reste donc stable.In FIG. 6, we can see how the hooking member 111 is placed on the extensions of the arms 108 and 109. This member 111 is for example a round iron rod, folded at its two ends 122, and having in its middle a curve 123 intended to receive the ring 124 for supporting a rail 125, running along a facade, and from which the basket is suspended. When the ring 124 is housed in the curve 123, it urges it downwards, and at the same time it keeps the bent ends 122 of the hooking member 111 downwards. It therefore remains stable.

Lorsque l'organe de support selon l'invention est mis en place au sommet d'un mur, la semelle 101 est sur le mur et le rabat 102 contre la façade, les bras fixes 103, 104 sont dans un plan sensiblement vertical, et l'ancrage arrière est assuré par le câble 121 sur l'anneau 119. La tige filetée 112 est simplement glissée dans une encoche de la tête d'ancrage 107. Une fois le rail 125 accroché à une série d'organes de support selon l'invention, on manoeuvre les manivelles 113 pour mettre le rail à la même hauteur sur toute sa longueur. Au cas où la liaison mécanique entre la tige filetée 112, le tube 114 et la manille 116 viendrait à être défectueuse, la chaîne de sécurité 120 pourrait éviter un accident.When the support member according to the invention is placed at the top of a wall, the sole 101 is on the wall and the flap 102 against the facade, the fixed arms 103, 104 are in a substantially vertical plane, and the rear anchoring is ensured by the cable 121 on the ring 119. The threaded rod 112 is simply slid into a notch in the anchoring head 107. Once the rail 125 is hooked to a series of support members according to the invention, the cranks 113 are operated to put the rail at the same height over its entire length. In the event that the mechanical connection between the threaded rod 112, the tube 114 and the shackle 116 becomes defective, the safety chain 120 could avoid an accident.

Après usage, on peut sortir la tige filetée 112 de son encoche; relever complètement les bras mobiles 108, 109 contre les bras fixes 103, 104 et rabattre la tige 112 le long d'un des bras 108 ou 109 par exemple, pour avoir un organe de support d'encombrement réduit, facilement transportable, et que l'on peut mettre en oeuvre très facilement.After use, the threaded rod 112 can be removed from its notch; completely raise the movable arms 108, 109 against the arms fixed 103, 104 and fold the rod 112 along one of the arms 108 or 109 for example, to have a support member of reduced size, easily transportable, and which can be implemented very easily.

Sur la figure 7, les mêmes références qu'à la figure 3 désignent les mêmes organes. L'entretoise 18 est simplifiée et elle porte au voisinage de l'une de ses extrémités un axe 52 sur lequel pivote une potence ayant un bras sensiblement horizontal 50 et un bras incliné vers le bas 51, dans l'exemple représenté. A l'extrémité du bras horizontal 50 une roue 53 pivote sur un axe 54. A l'extrémité du bras incliné 51, une roue 55 pivote sur un axe 56. De cette roue 55, une corde sans fin 57 pend librement jusqu'à la nacelle.In FIG. 7, the same references as in FIG. 3 designate the same members. The spacer 18 is simplified and it carries in the vicinity of one of its ends a pin 52 on which pivots a bracket having a substantially horizontal arm 50 and a downwardly inclined arm 51, in the example shown. At the end of the horizontal arm 50 a wheel 53 pivots on an axis 54. At the end of the inclined arm 51, a wheel 55 pivots on an axis 56. From this wheel 55, an endless rope 57 hangs freely until Platform.

Les roues 55 et 53 sont reliées entre elles au moyen d'une chaîne 59. La roue 53 porte une garniture extérieure adhérente 60 constituée par exemple par un pneumatique.The wheels 55 and 53 are connected to each other by means of a chain 59. The wheel 53 carries an adherent external lining 60 constituted for example by a tire.

La longueur du bras incliné et les masses de la roue 55 et de la corde 57 sont telles que la roue 53 est appliquée en permanence contre la face inférieure du rail. Ainsi, par une simple traction sur un brin de la corde 57, on peut assurer le déplacement latéral de la nacelle.The length of the inclined arm and the masses of the wheel 55 and of the rope 57 are such that the wheel 53 is permanently applied against the underside of the rail. Thus, by a simple pull on a strand of the rope 57, one can ensure the lateral displacement of the nacelle.

Claims (15)

1. Echafaudage volant pour bâtiment, dans lequel la nacelle est suspendue de façon traditionnelle à au moins deux chariots reliés entre eux par une entretoise amovible de longueur à peu près égale à celle de la nacelle utilisée, et déplaçables le long d'un rail formé d'une pluralité d'éléments linéaires assemblés, et disposé en surplomb au sommet du bâtiment grâce à une série d'organes de support placés sur le toit, caractérisé en ce qu'au voisinage de chacune de ses extrémités, l'entretoise (18) reliant les deux chariots (15, 16) porte une potence de sécurité (21a) en T dont la barre transversale (21b) est disposée à l'intérieur du rail (10) en U, perpendiculairement au plan de symétrie longitudinal dudit rail et présente une longueur supérieure à l'espacement des extrémités rabattues des ailes (10a, 10b) du rail.1. Flying scaffolding for building, in which the nacelle is traditionally suspended from at least two carriages linked together by a removable spacer of length approximately equal to that of the nacelle used, and movable along a formed rail of a plurality of linear elements assembled, and arranged overhanging the top of the building by means of a series of support members placed on the roof, characterized in that in the vicinity of each of its ends, the spacer (18 ) connecting the two carriages (15, 16) carries a safety bracket (21a) in T whose transverse bar (21b) is disposed inside the rail (10) in U, perpendicular to the longitudinal plane of symmetry of said rail and has a length greater than the spacing of the folded ends of the wings (10a, 10b) of the rail. 2. Echafaudage selon la revendication 1, caractérisé en ce que les éléments linéaires disposés bout à bout pour constituer le rail (10) sont assemblés par encastrement, en un déplacement du haut vers le bas, d'une extrémité femelle (24) sur une extrémité mâle (23), l'extrémité femelle portant une pièce d'appui (25) destinée à venir reposer sur la face supérieure de l'extrémité mâle et à y être verrouillée.2. Scaffolding according to claim 1, characterized in that the linear elements arranged end to end to constitute the rail (10) are assembled by embedding, in a movement from top to bottom, from a female end (24) on a male end (23), the female end carrying a support piece (25) intended to come to rest on the upper face of the male end and to be locked there. 3. Echafaudage selon la revendication 2, caractérisé en ce que le rail comporte un nombre quelconque d'éléments intermédiaires (12) présentant chacun une extrémité mâle (23) et une extrémité femelle (24), un élément amorce (11), fermé à un bout et présentant à l'autre une extrémité mâle et un élément terminal (13) fermé à un bout et présentant à l'autre une extrémité femelle, tandis que chaque élément de rail est muni d'un moyen de suspension (11a, 12a) aux organes de support, à faible distance de son extrémité mâle et de son extrémité fermée pour les éléments extrêmes (11b et 13a).3. Scaffolding according to claim 2, characterized in that the rail comprises any number of intermediate elements (12) each having a male end (23) and a female end (24), a primer element (11), closed at one end and having at the other a male end and a terminal element (13) closed at one end and having at the other a female end, while each rail element is provided with a suspension means (11a, 12a ) to the support members, a short distance from its male end and its closed end for the extreme elements (11b and 13a). 4. Echafaudage selon l'une quelconque des revendications 1 à 3, dans le cas d'une utilisation sur une façade de longueur relativement faible, caractérisé en ce que la manoeuvre de translation latérale est réalisée par traction sur l'un ou l'autre de deux câbles amarrés respectivement aux extrémités du rail (10) et venant chacun pendre à la verticale de la nacelle après passage sur une poulie de renvoi disposée sur le chariot correspondant.4. Scaffolding according to any one of claims 1 to 3, in the case of use on a facade of length relatively small, characterized in that the lateral translation maneuver is carried out by traction on one or the other of two cables moored respectively at the ends of the rail (10) and each coming to hang vertically from the nacelle after passing over a return pulley arranged on the corresponding carriage. 5. Echafaudage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le mouvement de translation de l'ensemble de suspension constitué par les deux chariots (15, 16) et leur entretoise (18), est obtenu par la manoeuvre, depuis la nacelle, d'une corde (33) ou d'une chaîne sans fin coopérant avec une poulie à gorge (32) portée par l'entretoise (18) et solidaire en rotation d'un rouleau à friction à bandage caoutchouc ou similaire appliqué contre la face inférieure du rail (10).5. Scaffolding according to any one of claims 1 to 3, characterized in that the translational movement of the suspension assembly constituted by the two carriages (15, 16) and their spacer (18), is obtained by the operation , from the nacelle, a rope (33) or an endless chain cooperating with a grooved pulley (32) carried by the spacer (18) and integral in rotation with a friction roller with rubber tire or similar applied against the underside of the rail (10). 6. Echafaudage selon la revendication 5, caractérisé en ce que le rouleau à friction est constitué par deux roues jumelées (34a, 34b) qui s'appliquent respectivement sous le bord rabattu de chacune des ailes (10a, 10b) du rail (10).6. Scaffolding according to claim 5, characterized in that the friction roller is constituted by two twin wheels (34a, 34b) which are applied respectively under the folded edge of each of the wings (10a, 10b) of the rail (10) . 7. Echafaudage selon l'une des revendications 5 et 6, caractérisé en ce que le rouleau à friction (34a, 34b) est porté par un bras (36) articulé par l'une de ses extrémités sur l'entretoise (18) et soumis au voisinage de l'extrémité opposée à l'action d'un ressort (39) le sollicitant en direction du rail (10).7. Scaffolding according to one of claims 5 and 6, characterized in that the friction roller (34a, 34b) is carried by an arm (36) articulated by one of its ends on the spacer (18) and subjected to the vicinity of the end opposite to the action of a spring (39) urging it towards the rail (10). 8. Echafaudage selon la revendication 1, caractérisé en ce que chaque organe de support comporte: une semelle (.101) destinée à être placée au sommet d'un mur; deux bras fixes (103, 104) dans un plan sensiblement vertical, solidaires de la semelle et se rapprochant pour porter une tête d'ancrage (107); deux bras mobiles (108, 109) susceptibles de pivoter par rapport à la semelle et se rapprochant pour porter l'organe d'accrochage (111) supportant la nacelle; et une tige (112) de réglage de la position des bras mobiles par rapport aux bras fixes.8. Scaffolding according to claim 1, characterized in that each support member comprises: a sole (.101) intended to be placed at the top of a wall; two fixed arms (103, 104) in a substantially vertical plane, integral with the sole and approaching to carry an anchoring head (107); two movable arms (108, 109) capable of pivoting with respect to the sole and approaching to carry the attachment member (111) supporting the nacelle; and a rod (112) for adjusting the position of the movable arms relative to the fixed arms. 9. Echafaudage selon la revendication 8, caractérisé en ce que les bras mobiles (108, 109) sont solidaires d'un axe (110) pivotant sur la semelle (101).9. Scaffolding according to claim 8, characterized in that the movable arms (108, 109) are integral with an axis (110) pivoting on the sole (101). 10. Echafaudage selon la revendication 8, caractérisé en ce que la tête d'ancrage (107) est constituée par une plaque à bords repliés et soudés aux bras fixes (103, 104) et qu'elle porte un anneau (119) d'ancrage susceptible de recevoir un câble (121).10. Scaffolding according to claim 8, characterized in that the anchoring head (107) is constituted by a plate with folded edges and welded to the fixed arms (103, 104) and that it carries a ring (119) of anchor capable of receiving a cable (121). 11. Echafaudage selon la revendication 10, caractérisé en ce que la tête d'ancrage (107) présente une encoche (126) dans laquelle vient s'insérer le manchon d'extrémité (127) de ladite tige (112) de réglage.11. Scaffolding according to claim 10, characterized in that the anchoring head (107) has a notch (126) in which is inserted the end sleeve (127) of said adjustment rod (112). 12. Echafaudage selon la revendication 8, caractérisé en ce que la tige(112) de réglage présente une manivelle (113) à son extrémité et qu'elle tourne dans un tube (114) fixé au voisinage de l'organe d'accrochage (111), à un axe (117) de support solidaire des bras mobiles (108, 109).12. Scaffolding according to claim 8, characterized in that the adjustment rod (112) has a crank (113) at its end and that it rotates in a tube (114) fixed in the vicinity of the hooking member ( 111), to an axis (117) of support integral with the movable arms (108, 109). 13. Echafaudage selon l'ensemble des revendications 10 et 12, caractérisé en ce qu'une chaîne (120) de sécurité est disposée entre ledit axe (117) de support et l'anneau (119) d'ancrage.13. Scaffolding according to all of claims 10 and 12, characterized in that a safety chain (120) is disposed between said support axis (117) and the anchoring ring (119). 14. Echafaudage selon la revendication 12, caractérisé en ce que l'organe (111) d'accrochage est une tige repliée à ses extrémités et présentant au milieu une incurvation (123).14. Scaffolding according to claim 12, characterized in that the attachment member (111) is a rod folded at its ends and having in the middle a curvature (123). 15. Echafaudage selon l'une des revendications 1 à 3, caractérisé en ce qu'il comporte une potence à deux bras (50, 51), pivotant sur un axe (52) porté par l'entretoise (18), l'un des bras (50) de la potence portant une roue (53) munie d'une garniture adhérente (60) en appui sous le rail (10), l'autre bras (51) de la potence portant une roue (55) susceptible d'être manoeuvrée en rotation au moyen d'une corde sans fin (57), les deux roues (53 et 55) étant solidarisées en rotation par une chaîne (59).15. Scaffolding according to one of claims 1 to 3, characterized in that it comprises a bracket with two arms (50, 51), pivoting on an axis (52) carried by the spacer (18), one arms (50) of the bracket carrying a wheel (53) provided with an adhesive lining (60) bearing under the rail (10), the other arm (51) of the bracket carrying a wheel (55) capable of 'be operated in rotation by means of an endless rope (57), the two wheels (53 and 55) being secured in rotation by a chain (59).
EP81400226A 1980-02-20 1981-02-13 Hanging scaffold for a building Expired EP0035424B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81400226T ATE7164T1 (en) 1980-02-20 1981-02-13 SUSPENSION SCAFFOLDING FOR BUILDINGS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8003675 1980-02-20
FR8003675A FR2476188A1 (en) 1980-02-20 1980-02-20 Travelling working platform on top of building - has framework supported by carriage each end with friction drive against rail forming track
FR8014500A FR2485599A1 (en) 1980-06-30 1980-06-30 SUPPORT DEVICE FOR FLYING SCAFFOLD
FR8014500 1980-06-30

Publications (2)

Publication Number Publication Date
EP0035424A1 true EP0035424A1 (en) 1981-09-09
EP0035424B1 EP0035424B1 (en) 1984-04-18

Family

ID=26221614

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81400226A Expired EP0035424B1 (en) 1980-02-20 1981-02-13 Hanging scaffold for a building

Country Status (4)

Country Link
EP (1) EP0035424B1 (en)
DE (1) DE3163147D1 (en)
ES (1) ES267106Y (en)
PT (1) PT72537B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672920A1 (en) * 1991-02-18 1992-08-21 Joly Gilles Modular support device for a flying scaffold
DE10104247C1 (en) * 2001-01-31 2002-07-25 Asg Aluminium Systeme Gmbh Traversing installation, used for working on building facades, comprises an endless drive element with a specified minimum value of its total wrap angle on the traction disks
DE10104248C1 (en) * 2001-01-31 2002-10-02 Asg Aluminium Systeme Gmbh Horizontally-moving trolley for use on facade of building has two pairs of rollers running on overhead rail and includes pulley drive system
WO2010006074A2 (en) * 2008-07-09 2010-01-14 Mark Sorensen Post-tension strand repair method and apparatus
CN110546421A (en) * 2017-04-21 2019-12-06 西普有限责任公司 Quick release type camera support

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1297234A (en) * 1961-05-16 1962-06-29 Device to facilitate work on building facades

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH291759A (en) * 1951-07-03 1953-07-15 Ag Duesa Device that can be mounted on a building structure and includes a support rail for a hoist.
DE1292833B (en) * 1964-03-06 1969-04-17 Mannesmann Leichtbau Gmbh The parapet of buildings spanning clamp brackets for hanging hanging structures
FR1593758A (en) * 1968-11-28 1970-06-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1297234A (en) * 1961-05-16 1962-06-29 Device to facilitate work on building facades

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672920A1 (en) * 1991-02-18 1992-08-21 Joly Gilles Modular support device for a flying scaffold
DE10104247C1 (en) * 2001-01-31 2002-07-25 Asg Aluminium Systeme Gmbh Traversing installation, used for working on building facades, comprises an endless drive element with a specified minimum value of its total wrap angle on the traction disks
DE10104248C1 (en) * 2001-01-31 2002-10-02 Asg Aluminium Systeme Gmbh Horizontally-moving trolley for use on facade of building has two pairs of rollers running on overhead rail and includes pulley drive system
WO2010006074A2 (en) * 2008-07-09 2010-01-14 Mark Sorensen Post-tension strand repair method and apparatus
WO2010006074A3 (en) * 2008-07-09 2010-04-08 Mark Sorensen Post-tension strand repair method and apparatus
US8752263B2 (en) 2008-07-09 2014-06-17 Mark Sorensen Post-tension strand repair method and apparatus
CN110546421A (en) * 2017-04-21 2019-12-06 西普有限责任公司 Quick release type camera support
CN110546421B (en) * 2017-04-21 2021-10-22 西普有限责任公司 Quick release stent system

Also Published As

Publication number Publication date
ES267106U (en) 1983-04-16
DE3163147D1 (en) 1984-05-24
PT72537A (en) 1981-03-01
ES267106Y (en) 1983-11-16
EP0035424B1 (en) 1984-04-18
PT72537B (en) 1982-03-10

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