EP1766157B1 - Plattformstützvorrichtung zum anheben von lasten oder personen über die höhe einer struktur - Google Patents

Plattformstützvorrichtung zum anheben von lasten oder personen über die höhe einer struktur Download PDF

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Publication number
EP1766157B1
EP1766157B1 EP05763731.6A EP05763731A EP1766157B1 EP 1766157 B1 EP1766157 B1 EP 1766157B1 EP 05763731 A EP05763731 A EP 05763731A EP 1766157 B1 EP1766157 B1 EP 1766157B1
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Prior art keywords
platform
mast
masts
cable
modular
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EP05763731.6A
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English (en)
French (fr)
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EP1766157A1 (de
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Bruno Patron
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Fixator
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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
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • E04G1/20—Scaffolds comprising upright members and provision for supporting cross-members or platforms at different positions therealong
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B66B9/187—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure with a liftway specially adapted for temporary connection to a building or other structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations

Definitions

  • the present invention relates to a platform support device for the elevation of loads or persons along a structure, particularly for the execution of work applied to said structure, this device comprising, in combination with a platform, lifting elements of the winch type platform to adjust at will the elevation level of the platform, modular elements assemblable forming the mast to reach a desired height, the establishment of each mast element s' carrying out from the load platform reliable to the masts on the one hand by the winch type lifting elements disconnectable at will said masts, on the other hand by means of temporary immobilization of the platform relative to a modular element of each mast to allow, in the immobilized state of the platform, the addition or the deletion at the top of the masts of at least one modular element as a function of the height of levation the desired platform.
  • the work along high-rise building facades is mostly done from so-called suspended scaffolds.
  • Such scaffolding consists of a platform on which winches are embedded, the platform being suspended from the roof of the construction by cables attached to the inserts on the roof.
  • Such a solution is satisfactory when the roof is easily accessible and it is possible to install the cable hooking elements and counterweights necessary for proper operation of the assembly. Otherwise, the operators are poor.
  • the masts are connected by an anchor shown in FIGS 9, this anchor marking the end of the progression in height of the platform and making it impossible to use such a device. scaffolding for work at great heights.
  • the patent FR-A-625 646 describes a scaffolding whose platform is supported by independent masts that can be attached to a façade by means of buttresses.
  • the platform is formed again of a console and two sleeves each sliding along a mast as shown in FIG. figure 1 of this patent or the passage column 2 - lines 19 to 26 of the description.
  • Said buttresses therefore constitute an obstacle to the descent of the platform which can not be fully lowered only during dismantling of the masts and removal of the buttresses.
  • This solution therefore prevents free movement in up and down the platform along the masts.
  • the platform / mast connection using a sliding sleeve requires, in the case of a three mast construction, a synchronous displacement of the entire platform.
  • An object of the present invention is therefore to provide a platform support device for the elevation of loads or people along a structure whose design allows to reach any heights and in particular large heights.
  • the masts being positioned at the ends of the platform which is thus housed in the space left free between said masts, plus any constraint in terms of elevation of the platform form because of the anchoring of the masts to the work is noticeable.
  • the platform support device 1A, 1B object of the invention, must allow the lifting of people and / or loads at great heights generally of the order of 50 meters or more in order to to facilitate, in particular, renovation work on building facades.
  • This platform support device must be able to be set up from the ground without having to use the roof of the construction.
  • This platform support device comprises, as mentioned above, in combination with a platform 1A or 1B, elements 2, 3 elevators of the winch type platform to adjust at will the level of elevation of the platform 1A, 1B as well as modular elements 4, 6 assemblable forming mast to reach a desired height.
  • each mast element 4 is made from the platform 1A, 1B load connectable to the masts on the one hand by the elements 2, 3 hoist-type lifts disconnectable at will from said masts, on the other hand by temporary immobilization means 5 of the platform 1A, 1B relative to a modular element 4 of each hook-type mast.
  • temporary immobilization means 5 of the platform 1A, 1B relative to a modular element 4 of each hook-type mast.
  • the winch 2 is again actuated to allow the platform 1A, 1B to be raised. until a new temporary immobilization of the platform along the masts and then again, the addition of a new modular element 4 for each mast.
  • the operation can be repeated until the desired height is reached.
  • the platform can thus be raised to any height by virtue of the fact that the platform 1A, 1B is placed between the two modular masts 16, 17 forming an elevation path.
  • the anchoring of the masts 16, 17 to the front of the structure does not prevent such an elevation of the platform.
  • the installation is intended to achieve great heights, the number of modular elements to form each mast is relatively important.
  • this platform support device 1A, 1B has the advantage of allowing the reuse of most of its elements for the production of a suspended platform. All of these advantages will be developed in more detail below from the detailed description of the platform support device.
  • lifting elements 2, 3 consist of at least one winch body 2 embedded on the platform 1A, 1B and a cable 3 extending between mast and platform 1A, 1B.
  • the fact of loading the body 2 of winch on the platform 1A, 1B makes it possible, during disassembly of the platform, to have a platform and a winch ready for use for the realization of a suspended platform.
  • the winch body 2 is of the continuous cable passage type of any length to prevent the platform 1A, 1B, under certain conditions, to support the entire weight of the cable 3.
  • the winch is not a drum winch in which case the cable is wrapped around the winch body and unrolls or wraps as the platform is raised.
  • An example of such a winch with continuous cable passage of any length is described in particular in the patent FR-A-2618421 .
  • These winches generally consist of a pulley provided with a grip groove and a cam for locking the cable inside said grip groove. The cable is able to extend beyond this pinching zone and thus tends from the winch as illustrated by FIG. figure 1 to come to rest on the ground.
  • the platform does not have to support the entire weight of the cable as may be the case for installations of the type consisting of drum winch.
  • each modular mast element 4 consists of uprights 7, at least four in number, interconnected by inclined or horizontal spacers 8 to form a lattice structure whose uprights 7 serve in pairs at the same time. guiding the platform 1A, 1B during its elevation along said poles 16, 17 while some of the struts 8 of the bar type cooperate with the temporary immobilization means 5 carried by the platform 1A, 1B to immobilize this last.
  • the modular mast element 4 intended to bear against the ground differs from the other modular elements 4 in that it is secured at one of its ends to a support plate 15 on the ground.
  • This plate is provided with means for adjusting its attitude to ensure perfect verticality of the mast 16, 17 as and when it is raised.
  • Each mast is in the form of an independent mast with respect to another mast. It is therefore self-stable so that a mast 17 can be disassembled without having to disassemble the mast 16 with which it cooperated.
  • the masthead element 6 is, in a similar manner to the other modular mast elements 4, provided with uprights intended to be assembled by one of their ends to the modular elements 4.
  • the elements 4, 6 of the mast 16, 17 modular are thus nestable through their uprights 7 placed end to end.
  • a necking can be provided to facilitate this nesting.
  • Additional coupling members, such as bolting, between modular mast members 4 may also be provided to enhance the mechanical strength of the assembly.
  • the element 6 masthead may consist of two parallel plates interconnected by spacers intended to constitute the means 23 for hooking the cable on the element 6 masthead. On this structure, there are reported tubes for constituting two amounts for the assembly by interlocking the element 6 masthead to other modular elements 4 of the mast.
  • the plates extend to form an arm terminated by an open hook in the direction of the sky to come to lock under a rod bar type spacer.
  • These arms are laterally offset from one masthead member 6 to another masthead member 6 to allow positioning of two masthead elements on one and the same mast as illustrated in FIG. figure 4 .
  • a roller may further be provided at the masthead to facilitate handling of the mast members.
  • the design of each head element allows a quick and easy positioning of said element.
  • this element 6 of masthead is made symmetrical with respect to the median longitudinal plane of the mast to allow in particular the attachment in parallel of at least two cables 3. This provision is necessary when the same mast is used for the parallel elevation of two platforms which can each have a cable capable of hooking on the element 6 masthead.
  • the permanent attachment of the cable to the element 6 of the masthead makes it possible to avoid any error in the handling of the operator who, at each phase of addition or removal at the masthead of a modular element, simply disengaging the masthead element 6 and then bringing or removing a mast element 4 before repositioning the masthead element 6 without have to touch the hooking of the cable 3 on the element 6 of the masthead.
  • This solution increases the security of the whole.
  • the poles 16, 17 obtained by assembling modular elements of the aforementioned type are independent, self-stable and self-supporting poles.
  • Independent masts are masts of a pair of masts that can be disassembled independently of one another. Each mast has a high rigidity due to its embodiment in the form of a beam unlike the scales of the state of the art.
  • the embodiment of the masts in the form of a tubular element, the beam being hollow and formed from a lattice structure, makes it possible to reduce the weight of the assembly.
  • the masts each comprise at least four uprights 7 interconnected by spacers 8 inclined or horizontal.
  • the uprights 7 of the same mast constitute in pairs a path 11, 12 for guiding a platform 1A, 1B. This results for the same mast the possibility of having two differentiated guide paths 11, 12 allowing the elevation in parallel and asynchronously of two platforms 1A, 1B differentiated over almost the entire height of the same mast 16, 17.
  • a mast made in the form of a tubular element with polygonal section has two faces each serving for guiding and elevating a differentiated platform while at least some of the other faces of the mast held free allow the anchoring the mast to a construction. As the masts rise by adding modular elements 4 of the mast, it is necessary during the addition phase to temporarily immobilize the platform 1A, 1B.
  • the temporary immobilization of the platform 1A, 1B along the masts which is necessary to allow the addition or the removal of a mast element, can be carried out according to different modes.
  • the means 5 of temporary immobilization are constituted by hooks loaded by spring, these hooks forming pawl retracting during the elevation of the platform 1A, 1B and hooking on the elements 4 of mast during a lowering the platform 1A, 1B.
  • These hooks are carried by a platen attached to the base of the platform. This plate can be easily removable or retractable to allow the removal of these elements, especially when used in the form of a suspended platform of the platform of the installation.
  • the hooks retract automatically and the spring brings them back to a position in which they come to lock on the bars 8 forming a spacer between two mast uprights.
  • the hooks are manually retracted between two phases of removal of modular elements 4 mast and are then released to come in a position in which they lock the platform on the masts and thus allow the removal of a mast element.
  • the latter is guided by rolling or sliding contact along the masts 16, 17.
  • the guide means of a platform 1A, 1B along a mast are constituted of rollers 9, preferably grooved, carried by a support 10 removably connectable to the platform 1A, 1B.
  • the rollers 9 with a groove of a support thus roll along two uprights 7 of the mast for forming a path 11 or 12 for guiding the mast.
  • An exemplary embodiment of the guide means is provided to the figure 5 .
  • the same platform comprises two supports 10 equipped with rollers 9, each support 10 cooperating with a path 11 or 12 for guiding a mast 16, 17.
  • the fact that the support 10 roller holder 9 is coupled by simple bolting to the platform allows easy removal of this set again to allow reuse of the platform in the form of suspended platform.
  • each modular mast element 4 consists of at least four uprights, it is thus possible to guide two platforms in parallel and asynchronously on the same mast.
  • the mast elements 4 are couplable to the structure along which they are located. arranged in particular by percussion anchoring.
  • the operator regularly performs an anchoring of the mast elements to the facade of the construction. It can use for this purpose the spacer elements between mast uprights. It can also use anchor bars fixed at one of their ends to the mast and protruding from the mast by the free surface 13 of the mast to come at their other end to attach to the construction. It is not necessarily necessary to anchor each modular mast element to said facade.
  • An anchoring means may be provided every two-three elements.
  • an additional safety device integral in displacement of the platform 1A, 1B, adapted to hold the platform 1A, 1B in the support position on the masts in case of breakage of the cable 3 of the winch 2.
  • the operation of these safety devices is controlled by the tension of the winch cable. In the relaxed state of the cable, the safety device is active while it is inactive in the tight state of the cable.
  • the platform is equipped with at least two safety devices, each safety device being formed of at least one abutment 14, preferably two stops 14, movable controlled by displacement by the tension of the cable 3 of the winch, to move from a resting position on a mast in the relaxed state of the cable to a retracted position in the stretched state of the cable 3 so as to allow the platform to move freely along the mast in the tight state of the cable.
  • each abutment 14 is connected to another abutment 14 by an axis 18.
  • This axis 18 is itself coupled to a stirrup 19 carrying a wheel 20 which delimits with the branches of the stirrup a passage of the cable 3 of the winch.
  • the cable 3 acts in the stretched state on the wheel to cause a displacement of the caliper / stop assembly towards the center of the platform thus preventing the stops 14 to bear on the spacers 8 of the mast bar type.
  • the stops move towards the mast and grip a bar 8 thus ensuring the retention of the platform along the poles.
  • the platform support device as described above, it becomes easy to reach great heights by means of the platform. In addition, the phases of disassembly and repositioning of the masts along the facade are facilitated. Finally, it is possible to cover the entire facade with such platform support devices by limiting the number of poles to be used. Such a construction therefore has a large number of advantages in view of the state of the art.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Movable Scaffolding (AREA)

Claims (10)

  1. Plattformstützvorrichtung (1A, 1B) zum Heben von Lasten oder Personen entlang einer Konstruktion, vor allem zum Ausführen von Arbeiten an der Konstruktion, wobei diese Vorrichtung aufweist:
    - mindestens eine sich vertikal verlagernde Plattform (1A, 1B),
    - modulare Elemente (4, 6), die verbunden sind, um eine gewünschte Höhe zu erreichen, die im verbundenen Zustand mindestens zwei vertikale Masten (16,17) bilden, wobei die modularen Elemente (4) den Mastkörper bilden und das modulare Element (6) den Mastkopf bildet,
    - Hubelemente (2, 3) der Plattform vom Typ Winde, die imstande sind, die Plattform mit den modularen Kopfelementen (6) der Masten zu verbinden, um das Hubniveau der Plattform (1A, 1B) entlang der Masten nach Belieben einstellen zu können, wobei diese Hubelemente vom Typ Winde nach Belieben von den Masten demontierbar sind,
    - Mittel (5) für die zeitweilige Blockade der Plattform (1A, 1B) in Bezug zu einem modularen Element (4) jedes Masts (16, 17), um im blockierten Zustand der Plattform (1A, 1B) das Hinzufügen oder das Entfernen am Kopf der Masten mindestens eines modularen Mastelements (4) in Abhängigkeit von der gewünschten Hubhöhe der Plattform (1A, 1B) zu erlauben, wobei das Platzieren jedes Mastelements (4, 6) ab der Plattform (1A, 1B) erfolgt,
    wobei die oder jede Plattform (1A, 1B) zwischen zwei unabhängigen modularen Masten (16, 17) platziert ist, die einen Hub- und Führungsweg bilden, wobei diese Masten (16, 17) auf der einen und der anderen Seite der Enden der Plattform angeordnet sind,
    dadurch gekennzeichnet, dass jeder Mast (16, 17) mindestens vier Pfosten (7) aufweist, die miteinander durch geneigte oder horizontale Querstreben (8) verbunden sind, wobei die Pfosten (7) paarige Führungswege bilden, und dass jeder Mast (16, 17) mindestens zwei Führungswege (11, 12) für den parallelen Hub von zwei Plattformen aufweist, die zwischen sich eine freie Fläche (13) für Verbindungsmittel des Masts mit der Konstruktion ausbilden, entlang der jeder Mast angeordnet ist, ohne die Verlagerung nach oben und unten der Plattform(en) (1A, 1B) entlang der Masten zu behindern, wobei die Fläche (13) bei der Verlagerung der Plattform(en) (1A, 1B) entlang des Masts nicht beansprucht wird, das heißt frei ist für Mastverbindungsmittel mit der Konstruktion, und dass die oder jede Plattform (1A, 1B) mit einem Führungsweg (11, 12) jedes Masts (16, 17) derart zusammenwirkt, um vor allem zu erlauben
    - entweder einem selben Mast (16) für den synchronen oder asynchronen Parallelhub von zwei Plattformen (1A, 1B) zu dienen,
    - oder, nach seitlichem Versatz eines Masts (16), einen Hubweg mit Hilfe eines einzigen Masts (17) durch Zusammenwirken mit dem am Platz gebliebenen Mast (16) zu bilden,
    und dass jede Plattform (1A, 1B) in rollendem Kontakt entlang der Masten (16, 17) geführt wird, wobei die Führungsmittel einer Plattform (1A, 1B) entlang eines Masts von Rollen (9), vorzugsweise mit Nut, gebildet sind, die von einem Halter (10) getragen werden, der demontierbar mit der Plattform (1A, 1B) koppelbar ist, wobei diese Rollen (9) entlang eines Pfostenpaares (7) des Masts rollen.
  2. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass die Hubelemente (2, 3) vom Typ Winde von mindestens einem Windenkörper (2) gebildet sind, der auf der Plattform (1A, 1B) eingebaut ist, und von einem Kabel, das sich zwischen Mast und Plattform (1A, 1B) erstreckt.
  3. Vorrichtung nach Anspruch 2,
    dadurch gekennzeichnet, dass der Windenkörper (2) vom Typ kontinuierlicher Kabeldurchgang beliebiger Länge ist, um unter bestimmten Bedingungen zu vermeiden, dass die Plattform (1A, 1B) das gesamte Gewicht des Kabels (3) tragen muss.
  4. Vorrichtung nach einem der Ansprüche 2 und 3,
    dadurch gekennzeichnet, dass das Kabel (3) mit dem Mast durch ein modulares Mastelement verbunden ist, das systematisch das Mastkopfelemente (6) bildet.
  5. Vorrichtung nach Anspruch 1,
    dadurch gekennzeichnet, dass einige der Querstreben (8) vom Typ Stange mit den von der Plattform (1A, 1B) getragenen Mitteln (5) für die zeitweilige Blockade zusammenwirken, um diese zu blockieren.
  6. Vorrichtung nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass die Mittel (5) für die zeitweilige Blockade von mit Feder gespannten Haken gebildet sind, wobei diese Haken eine Klinke bilden.
  7. Vorrichtung nach Anspruch 6,
    dadurch gekennzeichnet, dass die die Klinke bildenden Haken zwischen zwei Entfernungsphasen modularer Mastelemente (4) manuell eingezogen werden, wobei diese Phasen vor allem bei einer Demontage der Vorrichtung umgesetzt werden.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7,
    dadurch gekennzeichnet, dass die Mastelemente (4) an der Konstruktion, an der entlang sie angeordnet sind, insbesondere durch Stoßverankerung koppelbar sind.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8,
    dadurch gekennzeichnet, dass mindestens eine zusätzliche Sicherheitsvorrichtung, die mit der Plattform (1A, 1B) in Verlagerung fest verbunden ist, die imstande ist, die Plattform in (1A, 1B) in Stützposition auf den Masten bei einem Riss des Kabels (3) der Winde (2) zu halten, vorgesehen ist.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9,
    dadurch gekennzeichnet, dass die Plattform mit mindestens zwei Sicherheitsvorrichtungen ausgestattet ist, wobei jede Vorrichtung von mindestens einem Anschlag (14), vorzugsweise von zwei Anschlägen (14), gebildet ist, die durch die Spannung des Kabels (3) der Winde beweglich verlagernd gesteuert werden, um in gelockertem Zustand des Kabels von einer Stützposition auf einem Mast in gespanntem Zustand des Kabels (3) in eine eingezogene Position zu wechseln, um der Plattform zu erlauben, sich im gespannten Zustand des Kabels frei entlang des Masts zu bewegen.
EP05763731.6A 2004-07-12 2005-04-29 Plattformstützvorrichtung zum anheben von lasten oder personen über die höhe einer struktur Active EP1766157B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0407745A FR2872841A1 (fr) 2004-07-12 2004-07-12 Dispositif support de plate-forme pour l'elevation de charges ou de personnes le long d'un ouvrage
PCT/FR2005/001086 WO2006016016A1 (fr) 2004-07-12 2005-04-29 Dispositif support de plate-forme pour l’elevation de charges ou de personnes le long d’un ouvrage

Publications (2)

Publication Number Publication Date
EP1766157A1 EP1766157A1 (de) 2007-03-28
EP1766157B1 true EP1766157B1 (de) 2017-12-13

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Country Link
US (1) US9133632B2 (de)
EP (1) EP1766157B1 (de)
CN (1) CN100570104C (de)
ES (1) ES2660137T3 (de)
FR (1) FR2872841A1 (de)
HK (1) HK1108932A1 (de)
WO (1) WO2006016016A1 (de)

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FR2921165B1 (fr) 2007-09-19 2009-11-13 Fixator Soc Par Actions Simpli Dispositif d'aide au maintien de l'orientation d'une plateforme et dispositif d'elevation associe
NO333125B1 (no) * 2008-05-26 2013-03-11 Noracon As Et adkomstsystem, en fremgangsmåte for montering av et slikt system, samt et føringselement, et langstrakt ekstrudert profil og et støtteelement for adkomstsystemet
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CN114809571B (zh) * 2022-04-22 2023-09-19 中国建筑第二工程局有限公司 一种采用扁担梁提升高空操作平台的方法
CN115289384B (zh) * 2022-07-13 2024-04-16 上海江南长兴造船有限责任公司 一种用于超大型lng薄膜罐围护系统安装的轨道式装置及方法

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EP1766157A1 (de) 2007-03-28
ES2660137T3 (es) 2018-03-21
FR2872841A1 (fr) 2006-01-13
HK1108932A1 (en) 2008-05-23
CN1997801A (zh) 2007-07-11
US20080236944A1 (en) 2008-10-02
CN100570104C (zh) 2009-12-16
US9133632B2 (en) 2015-09-15
WO2006016016A1 (fr) 2006-02-16

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