EP1927707A1 - Safety device applied to machines for lifting wall and ceiling panels - Google Patents

Safety device applied to machines for lifting wall and ceiling panels Download PDF

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Publication number
EP1927707A1
EP1927707A1 EP07301558A EP07301558A EP1927707A1 EP 1927707 A1 EP1927707 A1 EP 1927707A1 EP 07301558 A EP07301558 A EP 07301558A EP 07301558 A EP07301558 A EP 07301558A EP 1927707 A1 EP1927707 A1 EP 1927707A1
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EP
European Patent Office
Prior art keywords
safety
column
cables
traction
cable
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
EP07301558A
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German (de)
French (fr)
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EP1927707B1 (en
Inventor
Jean-Marc Bailly
Denis Narelli
Christophe Valette
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Roger Mondelin Sas
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Roger Mondelin Sas
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Publication date
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Publication of EP1927707A1 publication Critical patent/EP1927707A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/18—Implements for finishing work on buildings for setting wall or ceiling slabs or plates
    • E04F21/1805—Ceiling panel lifting devices
    • E04F21/1811—Ceiling panel lifting devices with hand-driven crank systems, e.g. rope, cable or chain winding or rack-and-pinion mechanisms
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks

Definitions

  • the invention relates to the technical sector of devices for lifting and handling panels of wood materials, composite, plaster or other, intended to be positioned on the ceilings and / or on the wall or walls of a building.
  • the safety cable is longer than the traction cable, with a mounting leaving a game between its lowest point and the retaining pin, so as not to be solicited in normal times.
  • This safety cable is held in tension by means of a spring whose one end is secured to the loop of the cable, and the other secured to the inner column by means of a hole allowing the hook.
  • the objective was to exteriorize the tension of the safety cable with respect to the end column of the telescopic mast to facilitate assembly of the entire device.
  • the safety device according to the invention meets the desired objectives in terms of mounting, maintenance, and cost significantly improved over the prior art.
  • the safety device applied to the panel lifting devices is remarkable in that it comprises firstly a fastening piece and fixing the traction and safety cables, such that they are at the same level of attachment, said attachment piece being fixed in the lower part receiving the inner end column of the telescopic assembly, and secondly a tensioning mechanism of the safety cable, this mechanism being externalized with respect to the telescopic mast and located opposite the cable winding winch traction and safety.
  • the safety device is remarkable in that the tensioning mechanism comprises a long rod which is mounted to free articulation on the axis by a positioning hole, and its other end is arranged to receive the opposite another deflection pulley of the safety cable, in that a pin spring is mounted on the axis, and one end is supported on the opposite part of the inner column and the other end is engaged in a hook shape formed on the outer face of the link.
  • the safety device according to the invention applies to panel lifting devices intended to be installed on the ceilings and / or the building walls, and this, whatever the other characteristics of these devices, for example the mechanisms of orientation of the panel holder.
  • the description below is made in direct connection exclusively with the invention.
  • the configuration of the telescopic elements constituted by the mast of the hoist is arbitrary and the illustrated representation figure 2 particular profiles of the telescopic columns is an example, the essential in the configuration of the inner end column being that it is arranged for the implementation of the attachment mechanism of the traction and safety cables, according to the implementation of the invention.
  • the lifting and handling apparatus of the panels comprises a vertical column (1) forming a protective housing, hollow profiled internally to allow passage and sliding of the other telescopic columns (2a) (2b) constituting the mast, the column Inner end (2b) moving in highest height being arranged to be secured to the support means for presenting the panels to be installed.
  • the columns (2a) (2b) complementary are aluminum profiles or other materials.
  • the fixed column (1) is arranged from one of its sides to receive a profiled support piece (3) arranged vertically and having a dual function, namely that of constituting a means for gripping (3a) and moving the the device, and the other for receiving by a support plane (3b) the winch (4) on which will be wound the traction (5) and safety (6).
  • This support piece (3) is made from tubular sections for example.
  • the safety device comprises in a particular and original way, on the one hand a fastening and fixing part (7) of the traction (5) and safety (6) cables, such that they are at the same level fixing, said attachment piece being fixed in the receiving lower part (2b1) of the end inner column (2b) of the telescopic assembly, and secondly a mechanism (9) for tensioning of the security cable (6), this mechanism (9) being exteriorized with respect to the telescopic mast and located opposite the winch (4) for winding the traction and safety cables.
  • the tension mechanism (9) of the safety cable (6) In the interior volume of the support part (3) is arranged the tension mechanism (9) of the safety cable (6).
  • the attachment piece (7) is in the form of a profiled plate having in its upper upper part (7a) in its inner side two terminals (7b) spaced apart projecting from the base (7c). flat of the plate. These two terminals (7b) are parallel to each other leaving a passage between them, and present in the lower part a hole (7b1) for the passage of a connecting means.
  • Each terminal allows the passage and fixing of the anchoring loops (5a) (6a) formed at the ends of the traction and safety cables, as it appears figure 6 .
  • the loops (5a) (6a) surround the aforementioned terminals and are therefore held in tension by the cables which are directed towards the winch (4).
  • the lower part (7d) of the hooking plate (7) has an offset (7e) inwards, so as to be anchored in the space formed for this purpose on the lower part of the inner end column.
  • telescopic mast For this purpose, and as it appears figure 3 , the inner end column (2b) has on one side of the wings (2b2) facing inwards and a cutout (2b3) forming a window leaving the passage and the positioning of the anchoring piece (7).
  • the bottom wall of the inner end column has two openings (2b4) allowing the engagement of fastening means (10) and connecting the attachment piece on the column, as it appears figure 7 .
  • the means (10) may be rivets or the like, and these only exert the function of holding the workpiece (7) on the column (2b).
  • the cables (5) and (6) have near the end loop portion (5a) and (6a) of the connection rings (11) very conventional.
  • the strands of the cables thus go up vertically along the wall of the aforementioned inner column until, by virtue of the principle of blowing and the mounting of the telescopic columns in the mast, as for example described in the patent French dictionary n ° 2758150 , a return to exit the mast towards the winch (4) above.
  • the fixed column has at the location of the support part (3) an opening around which and overflow is provided a clevis (12) profiled U fixed and reported in any appropriate manner on the support face of the column .
  • This yoke has two vertical and parallel wings (12a) between which are mounted from one axis (13) two pulleys (14) for returning the traction and safety cables respectively.
  • the axis (13) is protruding from the yoke, and it allows the fixing of the tensioning mechanism (9) of the security cable.
  • this tension mechanism (9) comprises a rod (9a) of great length which is mounted to freely articulated on the axis (13) by a positioning hole, and its other end is arranged to receive the opposite another pulley (15) for returning the safety cable.
  • a pin spring (16) is mounted on the axis (13), and one end (16a) is supported on the opposite part of the inner column and the other end (16b) is engaged in a hook shape ( 9a) formed on the outer face of the link.
  • the pulling cable (5) at the column outlet (2b) is directed via the corresponding return pulley (14) to the winch.
  • the safety cable (6) at the column outlet (2b) is guided towards the tensioning mechanism (9) and bears on the pulley (15) which is wound up, then is wound on the drum of the winch.
  • a non-illustrated protective housing fits on the part (3) protecting the tensioning mechanism, the winch and the output of the cables.
  • the rod thus holds the safety cable in tension with the aid of the spring (16) and, in a situation of non-breaking of the traction cable, the tensioning mechanism of the safety cable is not stressed. We are therefore in a situation as represented figure 10 .
  • the design of the security device according to the invention is simple, allows easy assembly of components and quick and improved maintenance of the device.
  • the components are simple and inexpensive to manufacture.
  • the solution thus offers an improvement of the safety conditions due to the optimized amplitude of tilting of the link and thus to the safety cable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Types And Forms Of Lifts (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

The device has a hooking and fixation piece for hooking and fixing a traction cable (5) and a safety cable (6) such that the cables are at a same fixation level. The piece is fixed in a lower reception part of an inner terminal column (2b) of a telescopic mast. A mechanism tensioning the safety cable is placed external with respect to the telescopic mast and located opposite to a manual control winch (4) on which the cables are wound.

Description

L'invention se rapporte au secteur technique des appareils de levage et de manutention de panneaux en matériaux bois, composite, plâtre ou autres, destinés à être positionnés aux plafonds et/ou sur le ou les murs d'une construction.The invention relates to the technical sector of devices for lifting and handling panels of wood materials, composite, plaster or other, intended to be positioned on the ceilings and / or on the wall or walls of a building.

Le Demandeur a ainsi développé de nombreux appareils de ce type commercialisés sous sa marque enregistrée LEVPANO, et qui font l'objet de nombreux brevets.The Applicant has thus developed numerous devices of this type marketed under its registered trademark LEVPANO, and which are the subject of numerous patents.

Ces panneaux de grande dimension constituent des charges lourdes à déplacer et à positionner, et les appareils de ce type utilisent des mâts télescopiques montés manuellement par un treuil. Il est alors prévu un dispositif de sécurité de câbles qui fasse, qu'en cas de rupture du câble de traction permettant l'élévation ou l'abaissement des colonnes constitutives du mât, un câble complémentaire de sécurité intervienne alors pour se substituer au câble de traction en rupture. Un dispositif de sécurité de ce type a été décrit dans le brevet français n° 2538437 , puis a été amélioré par le dispositif décrit dans le brevet français n° 2758150 du Demandeur. Ce brevet est exploité par le Demandeur de manière satisfaisante. On a ainsi représenté à la figure 1 de la demande, le dispositif de sécurité connu au titre de l'art antérieur dans le brevet français n° 2758150 . Il met en oeuvre un agencement particulier avec deux câbles, l'un de traction et l'autre de sécurité de substitution, ces deux câbles étant bouclés et ancrés à l'une de leurs extrémités séparément sur deux axes solidaires de l'extrémité inférieure de la colonne terminale du mât avec des niveaux de positionnement différents. Ainsi, le câble de sécurité est plus long que le câble de traction, avec un montage laissant apparaître un jeu entre son point le plus bas et l'axe de retenue, afin de ne pas être sollicité en temps normal. Ce câble de sécurité est maintenu en tension à l'aide d'un ressort dont l'une des extrémités est solidaire de la boucle du câble, et l'autre solidaire de la colonne intérieure à l'aide d'un trou permettant l'accrochage.These large panels are heavy loads to move and position, and devices of this type use telescopic masts manually mounted by a winch. A cable safety device is then provided which makes it possible, in the event of the traction cable breaking, to raise or lower the columns constituting the mast, to use a complementary safety cable to replace the cable of the cable. traction in rupture. A safety device of this type has been described in the patent French Serious No. 2538437 , and then was improved by the device described in the patent French dictionary n ° 2758150 of the Applicant. This patent is operated by the Applicant satisfactorily. It has thus been shown figure 1 of the application, the security device known from the prior art in the patent French dictionary n ° 2758150 . It implements a particular arrangement with two cables, one of traction and the other of safety substitution, these two cables being looped and anchored at one of their ends separately on two axes integral with the lower end of the terminal column of the mast with different positioning levels. Thus, the safety cable is longer than the traction cable, with a mounting leaving a game between its lowest point and the retaining pin, so as not to be solicited in normal times. This safety cable is held in tension by means of a spring whose one end is secured to the loop of the cable, and the other secured to the inner column by means of a hole allowing the hook.

Si ce dispositif est couramment utilisé par le Demandeur, la mise en oeuvre de son montage n'est pas toujours pratique. Le dispositif se trouve intégré à l'intérieur de la colonne terminale du mât télescopique, comme illustré en figure 2 du brevet français n° 2758150 précité.If this device is commonly used by the Applicant, the implementation of its assembly is not always practical. The device is integrated inside the end column of the telescopic mast, as illustrated in figure 2 patent French dictionary n ° 2758150 supra.

La démarche du Demandeur a donc été de rechercher une amélioration à ce dispositif de sécurité et de son montage, tout en répondant aux critères de fiabilité et de fonctionnement.The Applicant's approach was therefore to seek an improvement to this safety device and its assembly, while meeting the criteria of reliability and operation.

L'objectif était ainsi d'extérioriser la tension du câble de sécurité par rapport à la colonne terminale du mât télescopique pour faciliter le montage de l'ensemble du dispositif.The objective was to exteriorize the tension of the safety cable with respect to the end column of the telescopic mast to facilitate assembly of the entire device.

La solution apportée par le Demandeur répond ainsi à cet objectif grâce à une reconsidération globale des conditions de fixation des câbles de traction et de sécurité par rapport à la pratique antérieure décrite dans le brevet français précité.The solution provided by the Applicant thus meets this objective through an overall reconsideration of the conditions for fixing the traction and safety cables compared to the prior practice described in the aforementioned French patent.

Cette solution améliore de manière considérable les conditions de montage du dispositif par une simplification de celui-ci, en permettant le cas échéant à l'opérateur de maintenance de pouvoir faire des contrôles de sécurité à tout moment, sans difficultés particulières, en ayant un accès immédiat au dispositif sans nécessité de démontage de l'ensemble du mât télescopique de l'appareil de levage.This solution considerably improves the mounting conditions of the device by simplifying it, allowing the maintenance operator, if necessary, to be able to carry out security checks at any time, without any particular difficulties, while having access to immediate device without the need to dismantle the entire telescopic mast of the hoist.

Ainsi le dispositif de sécurité selon l'invention répond aux objectifs recherchés dans des conditions de montage, de maintenance, et de coût nettement améliorées par rapport à l'art antérieur.Thus the safety device according to the invention meets the desired objectives in terms of mounting, maintenance, and cost significantly improved over the prior art.

Selon une première caractéristique de l'invention, le dispositif de sécurité appliqué aux appareils de levage de panneaux, du type comprenant un mât télescopique dont la partie supérieure reçoit le porte-panneaux, des câbles de traction et de sécurité sollicités par un treuil à commande manuelle, est remarquable en ce qu'il comprend d'une part une pièce d'accrochage et de fixation des câbles de traction et de sécurité, tels qu'ils soient au même niveau de fixation, ladite pièce d'accrochage se fixant dans la partie inférieure réceptrice de la colonne intérieure terminale de l'ensemble télescopique, et d'autre part un mécanisme de mise en tension du câble de sécurité, ce mécanisme étant extériorisé par rapport au mât télescopique et situé en regard du treuil d'enroulement des câbles de traction et de sécurité.According to a first characteristic of the invention, the safety device applied to the panel lifting devices, of the type comprising a telescopic mast whose upper part receives the panel holder, traction and safety cables requested by a control winch manual, is remarkable in that it comprises firstly a fastening piece and fixing the traction and safety cables, such that they are at the same level of attachment, said attachment piece being fixed in the lower part receiving the inner end column of the telescopic assembly, and secondly a tensioning mechanism of the safety cable, this mechanism being externalized with respect to the telescopic mast and located opposite the cable winding winch traction and safety.

Selon une autre caractéristique, le dispositif de sécurité est remarquable en ce que le mécanisme de tension comprend une biellette de grande longueur qui est montée à articulation libre sur l'axe par un trou de positionnement, et son autre extrémité est agencée pour recevoir à l'opposé une autre poulie de renvoi du câble de sécurité, en ce qu'un ressort à épingle est monté sur l'axe , et une extrémité prend appui sur la partie en regard de la colonne intérieure et l'autre extrémité est engagée dans une forme en crochet formée sur la face extérieure de la biellette.According to another characteristic, the safety device is remarkable in that the tensioning mechanism comprises a long rod which is mounted to free articulation on the axis by a positioning hole, and its other end is arranged to receive the opposite another deflection pulley of the safety cable, in that a pin spring is mounted on the axis, and one end is supported on the opposite part of the inner column and the other end is engaged in a hook shape formed on the outer face of the link.

Ces caractéristiques et d'autres encore ressortiront bien de la suite de la description.These and other characteristics will be apparent from the rest of the description.

Pour fixer l'objet de l'invention illustrée d'une manière non limitative aux figures des dessins où :

  • la figure 1 est une vue en perspective du dispositif de sécurité pour appareil de levage décrit dans le brevet français n° 2758150 du Demandeur illustrant en particulier le montage des câbles de traction et de sécurité.
  • la figure 2 est une vue en perspective partielle du dispositif de sécurité selon l'invention et son extérioration par rapport au mât télescopique de l'appareil de levage.
  • la figure 3 est une vue partielle illustrant les moyens d'accrochage des câbles de traction et de sécurité avant positionnement sur la colonne intérieure terminale du mât, et ainsi l'agencement particulier de la partie réceptrice de la colonne pour les moyens précités.
  • la figure 4 est une vue en perspective de trois quart arrière de la pièce d'accrochage des câbles de traction et de sécurité, au bas de la colonne intérieure terminale.
  • la figure 5 est une vue complémentaire aux figures 3 et 4 montrant la mise en place et l'ancrage de la pièce d'accrochage des câbles de traction et de sécurité sur la colonne intérieure terminale.
  • la figure 6 est une vue partielle en perspective en relation avec la figure 3 orientée différemment, montrant la fixation des câbles de traction et de sécurité.
  • la figure 7 est une vue partielle et en coupe longitudinale selon la ligne A-A montrant l'immobilisation de la pièce d'accrochage des câbles de traction et de sécurité sur la colonne intérieure terminale.
  • la figure 8 montre le mécanisme de tension du câble de sécurité.
  • la figure 9 montre en vue de dessus partielle le treuil récepteur des câbles de traction et de sécurité avec enrouleur.
  • la figure 10 est une vue de côté montrant la position du mécanisme de tension du câble de sécurité en situation de non sollicitation.
  • la figure 11 est une vue de côté selon la figure 10, mais en phase de sollicitation du mécanisme de tension du câble de sécurité.
  • la figure 12 est une vue partielle en coupe longitudinale montrant le passage des câbles au travers de la colonne fixe.
For fixing the object of the invention illustrated in a nonlimiting manner to the figures of the drawings where:
  • the figure 1 is a perspective view of the hoist safety device described in the patent French dictionary n ° 2758150 of the Applicant illustrating in particular the mounting of the traction and safety cables.
  • the figure 2 is a partial perspective view of the safety device according to the invention and its externalization with respect to the telescopic mast of the lifting apparatus.
  • the figure 3 is a partial view illustrating the attachment means of the traction and safety cables before positioning on the inner end column of the mast, and thus the particular arrangement of the receiving part of the column for the aforementioned means.
  • the figure 4 is a perspective view of three quarter rear of the attachment piece of traction and safety cables at the bottom of the inner end column.
  • the figure 5 is a complementary view to Figures 3 and 4 showing the positioning and anchoring of the attachment piece of the traction and safety cables on the inner end column.
  • the figure 6 is a partial perspective view in relation to the figure 3 oriented differently, showing the attachment of the traction and safety cables.
  • the figure 7 is a partial view in longitudinal section along the line AA showing the immobilization of the attachment piece of the traction and safety cables on the inner end column.
  • the figure 8 shows the tensioning mechanism of the safety cable.
  • the figure 9 shows in partial top view the winch receiver of traction and safety cables with retractor.
  • the figure 10 is a side view showing the position of the tensioning mechanism of the safety cable in a non-solicitation situation.
  • the figure 11 is a side view according to the figure 10 , but in phase of stressing of the tensioning mechanism of the security cable.
  • the figure 12 is a partial view in longitudinal section showing the passage of cables through the fixed column.

Pour fixer l'objet de l'invention, on le décrit maintenant d'une manière non limitative illustrée aux figures des dessins.To fix the object of the invention, it is now described in a non-limiting manner illustrated in the figures of the drawings.

Le dispositif de sécurité selon l'invention s'applique à des appareils de levage de panneaux destinés à être posés aux plafonds et/ou aux murs de construction, et ce, quelles que soient les autres caractéristiques de ces appareils, par exemple les mécanismes d'orientation du support porte-panneaux.The safety device according to the invention applies to panel lifting devices intended to be installed on the ceilings and / or the building walls, and this, whatever the other characteristics of these devices, for example the mechanisms of orientation of the panel holder.

La description ci-après est établie en liaison directe exclusivement avec l'invention. La configuration des éléments télescopiques constitués du mât de l'appareil de levage est quelconque et la représentation illustrée figure 2 des profils particuliers des colonnes télescopiques est un exemple, l'essentiel dans la configuration de la colonne intérieure terminale étant qu'elle soit agencée pour la mise en oeuvre du mécanisme d'accrochage des câbles de traction et de sécurité, selon la mise en oeuvre de l'invention.The description below is made in direct connection exclusively with the invention. The configuration of the telescopic elements constituted by the mast of the hoist is arbitrary and the illustrated representation figure 2 particular profiles of the telescopic columns is an example, the essential in the configuration of the inner end column being that it is arranged for the implementation of the attachment mechanism of the traction and safety cables, according to the implementation of the invention.

En se référant à la figure 2, l'appareil de levage et de manutention des panneaux comprend une colonne fixe (1) verticale formant carter de protection, profilée creuse intérieurement pour autoriser le passage et le coulissement des autres colonnes télescopiques (2a) (2b) constitutives du mât, la colonne intérieure terminale (2b) se déplaçant en hauteur le plus haut étant agencée pour être solidarisée aux moyens supports de présentation des panneaux à poser. Les colonnes (2a) (2b) complémentaires sont des profilés en aluminium ou autres matériaux.Referring to the figure 2 , the lifting and handling apparatus of the panels comprises a vertical column (1) forming a protective housing, hollow profiled internally to allow passage and sliding of the other telescopic columns (2a) (2b) constituting the mast, the column Inner end (2b) moving in highest height being arranged to be secured to the support means for presenting the panels to be installed. The columns (2a) (2b) complementary are aluminum profiles or other materials.

La colonne fixe (1) est agencée à partir de l'un de ses côtés pour recevoir une pièce support (3) profilée disposée verticalement et ayant une double fonction, à savoir celle de constituer un moyen de préhension (3a) et de déplacement de l'appareil, et l'autre pour réceptionner par un plan d'appui (3b) le treuil (4) sur lequel seront enroulés les câbles de traction (5) et de sécurité (6). Cette pièce support (3) est établie à partir de profilés tubulaires par exemple.The fixed column (1) is arranged from one of its sides to receive a profiled support piece (3) arranged vertically and having a dual function, namely that of constituting a means for gripping (3a) and moving the the device, and the other for receiving by a support plane (3b) the winch (4) on which will be wound the traction (5) and safety (6). This support piece (3) is made from tubular sections for example.

Le dispositif de sécurité selon l'invention va être ci-après décrit en se rapportant aux figures des dessins. Le dispositif de sécurité comprend d'une manière particulière et originale, d'une part une pièce d'accrochage et de fixation (7) des câbles de traction (5) et de sécurité (6), tels qu'ils soient au même niveau de fixation, ladite pièce d'accrochage se fixant dans la partie inférieure réceptrice (2b1) de la colonne intérieure terminale (2b) de l'ensemble télescopique, et d'autre part un mécanisme (9) de mise en tension du câble de sécurité (6), ce mécanisme (9) étant extériorisé par rapport au mât télescopique et situé en regard du treuil (4) d'enroulement des câbles de traction et de sécurité. Dans le volume intérieur de la pièce support (3) se trouve disposé le mécanisme de tension (9) du câble de sécurité (6).The safety device according to the invention will be described below with reference to the figures of the drawings. The safety device comprises in a particular and original way, on the one hand a fastening and fixing part (7) of the traction (5) and safety (6) cables, such that they are at the same level fixing, said attachment piece being fixed in the receiving lower part (2b1) of the end inner column (2b) of the telescopic assembly, and secondly a mechanism (9) for tensioning of the security cable (6), this mechanism (9) being exteriorized with respect to the telescopic mast and located opposite the winch (4) for winding the traction and safety cables. In the interior volume of the support part (3) is arranged the tension mechanism (9) of the safety cable (6).

Plus particulièrement, la pièce d'accrochage (7) est établie sous la forme d'une plaque profilée présentant dans sa partie haute supérieure (7a) dans son côté intérieur deux bornes (7b) espacées en saillie par rapport à la base (7c) méplate de la plaque. Ces deux bornes (7b) sont parallèles l'une de l'autre en laissant un passage entre elles, et présentent dans la partie basse un trou (7b1) pour le passage d'un moyen de liaison. Chaque borne autorise le passage et la fixation des boucles d'ancrage (5a) (6a) formées aux extrémités des câbles de traction et de sécurité, comme cela apparaît figure 6. Les boucles (5a) (6a) viennent entourer les bornes précitées et sont donc maintenues en tension par les câbles qui sont dirigés vers le treuil (4). La partie basse (7d) de la plaque d'accrochage (7) présente un déport (7e) vers l'intérieur, de sorte à venir s'ancrer dans l'espace formé à cet effet sur la partie inférieure de la colonne intérieure terminale du mât télescopique. A cet effet, et comme il apparaît figure 3, la colonne intérieure terminale (2b) présente sur un côté des ailes (2b2) tournées vers l'intérieur et une découpe (2b3) formant fenêtre laissant le passage et le positionnement de la pièce d'ancrage (7). La paroi de fond de la colonne intérieure terminale présente deux ouvertures (2b4) permettant l'engagement de moyens de fixation (10) et de liaison de la pièce d'accrochage sur la colonne, comme il apparaît figure 7. Les moyens (10) peuvent être des rivets ou autres, et ceux-ci n'exercent que la fonction de maintien de la pièce (7) sur la colonne (2b).More particularly, the attachment piece (7) is in the form of a profiled plate having in its upper upper part (7a) in its inner side two terminals (7b) spaced apart projecting from the base (7c). flat of the plate. These two terminals (7b) are parallel to each other leaving a passage between them, and present in the lower part a hole (7b1) for the passage of a connecting means. Each terminal allows the passage and fixing of the anchoring loops (5a) (6a) formed at the ends of the traction and safety cables, as it appears figure 6 . The loops (5a) (6a) surround the aforementioned terminals and are therefore held in tension by the cables which are directed towards the winch (4). The lower part (7d) of the hooking plate (7) has an offset (7e) inwards, so as to be anchored in the space formed for this purpose on the lower part of the inner end column. telescopic mast. For this purpose, and as it appears figure 3 , the inner end column (2b) has on one side of the wings (2b2) facing inwards and a cutout (2b3) forming a window leaving the passage and the positioning of the anchoring piece (7). The bottom wall of the inner end column has two openings (2b4) allowing the engagement of fastening means (10) and connecting the attachment piece on the column, as it appears figure 7 . The means (10) may be rivets or the like, and these only exert the function of holding the workpiece (7) on the column (2b).

Les câbles (5) et (6) présentent près de la partie boucle d'extrémité (5a) et (6a) des anneaux de liaison (11) bien classiques. Les brins des câbles remontent donc verticalement le long de la paroi de la colonne intérieure précitée jusqu'à permettre, par le principe du moufflage et le montage des colonnes télescopiques dans le mât comme par exemple décrit dans le brevet français n° 2758150 , un renvoi pour sortir du mât en direction du treuil (4) précité.The cables (5) and (6) have near the end loop portion (5a) and (6a) of the connection rings (11) very conventional. The strands of the cables thus go up vertically along the wall of the aforementioned inner column until, by virtue of the principle of blowing and the mounting of the telescopic columns in the mast, as for example described in the patent French dictionary n ° 2758150 , a return to exit the mast towards the winch (4) above.

Ainsi, la colonne fixe présente à l'endroit de la pièce support (3) une ouverture autour de laquelle et en débordement extérieur est prévue une chape (12) profilée en U fixée et rapportée de toute manière appropriée sur la face support de la colonne. Cette chape présente deux ailes (12a) verticales et parallèles entre lesquelles sont montées à partir d'un axe (13) deux poulies (14) de renvoi des câbles de traction et de sécurité respectivement. L'axe (13) est débordant de la chape, et il permet la fixation du mécanisme de tension (9) du câble de sécurité. En pratique, ce mécanisme de tension (9) comprend une biellette (9a) de grande longueur qui est montée à articulation libre sur l'axe (13) par un trou de positionnement, et son autre extrémité est agencée pour recevoir à l'opposé une autre poulie (15) de renvoi du câble de sécurité. Un ressort à épingle (16) est monté sur l'axe (13), et une extrémité (16a) prend appui sur la partie en regard de la colonne intérieure et l'autre extrémité (16b) est engagée dans une forme en crochet (9a) formée sur la face extérieure de la biellette. En se référant aux figures 2 et 9, le câble de traction (5) en sortie de colonne (2b) est orienté via la poulie de renvoi correspondante (14) vers le treuil. Le câble de sécurité (6) en sortie de colonne (2b) est guidé vers le mécanisme de tension (9) et prend appui sur la poulie (15) qui est enroulée, puis est enroulé sur le tambour du treuil. Bien évidemment, un carter de protection non illustré s'adapte sur la pièce (3) en protégeant le mécanisme de tension, le treuil et la sortie des câbles.Thus, the fixed column has at the location of the support part (3) an opening around which and overflow is provided a clevis (12) profiled U fixed and reported in any appropriate manner on the support face of the column . This yoke has two vertical and parallel wings (12a) between which are mounted from one axis (13) two pulleys (14) for returning the traction and safety cables respectively. The axis (13) is protruding from the yoke, and it allows the fixing of the tensioning mechanism (9) of the security cable. In practice, this tension mechanism (9) comprises a rod (9a) of great length which is mounted to freely articulated on the axis (13) by a positioning hole, and its other end is arranged to receive the opposite another pulley (15) for returning the safety cable. A pin spring (16) is mounted on the axis (13), and one end (16a) is supported on the opposite part of the inner column and the other end (16b) is engaged in a hook shape ( 9a) formed on the outer face of the link. Referring to figures 2 and 9 the pulling cable (5) at the column outlet (2b) is directed via the corresponding return pulley (14) to the winch. The safety cable (6) at the column outlet (2b) is guided towards the tensioning mechanism (9) and bears on the pulley (15) which is wound up, then is wound on the drum of the winch. Of course, a non-illustrated protective housing fits on the part (3) protecting the tensioning mechanism, the winch and the output of the cables.

La biellette maintient ainsi en tension le câble de sécurité à l'aide du ressort (16) et en situation de non rupture de câble de traction, le mécanisme de tension du câble de sécurité n'est pas sollicité. On se trouve donc en situation telle que représentée figure 10.The rod thus holds the safety cable in tension with the aid of the spring (16) and, in a situation of non-breaking of the traction cable, the tensioning mechanism of the safety cable is not stressed. We are therefore in a situation as represented figure 10 .

En cas de rupture du câble de traction (5), la charge se trouve rapportée sur le câble de sécurité qui est mis en tension. La biellette change de position dû à l'effort exercé par la charge agissant sur le câble de sécurité qui est supérieur à celui exercé par le ressort, tel que cela est représenté figure 11. L'amplitude de déplacement de la biellette autour de son axe (13) permet de donner plus de mou au câble de sécurité par rapport à la pratique antérieure décrite dans le brevet français n° 2758150 , avec ainsi une sécurité amplifiée en cas de rupture du câble de traction.In case of breakage of the traction cable (5), the load is added to the safety cable which is put in tension. The link changes position due to the force exerted by the load acting on the safety cable which is greater than that exerted by the spring, as shown figure 11 . The amplitude of movement of the rod about its axis (13) allows to give more slack to the safety cable compared to the practice formerly described in the patent French dictionary n ° 2758150 , thus with increased safety in case of breakage of the traction cable.

La conception du dispositif de sécurité selon l'invention est simple, permet un montage aisé des composants et une maintenance rapide et améliorée de l'appareil. Les composants sont de fabrication simple et peu coûteuse.The design of the security device according to the invention is simple, allows easy assembly of components and quick and improved maintenance of the device. The components are simple and inexpensive to manufacture.

La solution offre ainsi une amélioration des conditions de sécurité de par l'amplitude optimisée de basculement de la biellette et donc sur le câble de sécurité.The solution thus offers an improvement of the safety conditions due to the optimized amplitude of tilting of the link and thus to the safety cable.

Claims (8)

Dispositif de sécurité appliqué aux appareils de levage de panneaux au niveau des plafonds et murs, du type comprenant un mât télescopique dont la partie supérieure reçoit le porte-panneaux, des câbles de traction et de sécurité sollicités par un treuil à commande manuelle, caractérisé en ce qu'il comprend d'une part une pièce d'accrochage et de fixation (7) des câbles de traction (5) et de sécurité (6), tels qu'ils soient au même niveau de fixation, ladite pièce d'accrochage se fixant dans la partie inférieure réceptrice (2b1) de la colonne intérieure terminale (2b) de l'ensemble télescopique, et d'autre part un mécanisme (9) de mise en tension du câble de sécurité (6), ce mécanisme (9) étant extériorisé par rapport au mât télescopique et situé en regard du treuil (4) d'enroulement des câbles de traction et de sécurité.Safety device applied to panel lifting devices at ceilings and walls, of the type comprising a telescopic mast whose upper part receives the panel holder, traction and safety cables requested by a manually operated winch, characterized in that that it comprises firstly a fastening and fixing part (7) of the traction cables (5) and safety (6), such that they are at the same level of attachment, said attachment part fixing in the lower receiving part (2b1) of the end inner column (2b) of the telescopic assembly, and secondly a mechanism (9) for tensioning the security cable (6), this mechanism (9 ) being externalized with respect to the telescopic mast and located opposite the winch (4) for winding the traction and safety cables. Dispositif selon la revendication 1, caractérisé en ce que la colonne fixe (1) est agencée à partir de l'un de ses côtés pour recevoir une pièce support (3) profilée disposée verticalement et ayant une double fonction, à savoir celle de constituer un moyen de préhension (3a) et de déplacement de l'appareil, et l'autre pour réceptionner par un plan d'appui (3b) le treuil (4) sur lequel seront enroulés les câbles de traction (5) et de sécurité (6), et en ce que dans le volume intérieur de la pièce support (3) se trouve disposé le mécanisme de tension (9) du câble de sécurité (6).Device according to claim 1, characterized in that the fixed column (1) is arranged from one of its sides to receive a profiled support piece (3) arranged vertically and having a dual function, namely that of constituting a means for gripping (3a) and moving the apparatus, and the other for receiving by a supporting plane (3b) the winch (4) on which the traction (5) and safety (6) cables will be wound. ), and in that in the inner volume of the support member (3) is arranged the tensioning mechanism (9) of the safety cable (6). Dispositif selon la revendication 1, caractérisé en ce que la pièce d'accrochage (7) est établie sous la forme d'une plaque profilée présentant dans sa partie haute supérieure (7a) dans son côté intérieur deux bornes (7b) espacées en saillie par rapport à la base (7c) méplate de la plaque, en ce que ces deux bornes (7b) sont parallèles l'une de l'autre en laissant un passage entre elles, et présentent dans la partie basse un trou (7b1) pour le passage d'un moyen de liaison, en ce que chaque borne autorise le passage et la fixation des boucles d'ancrage (5a) (6a) formées aux extrémités des câbles de traction et de sécurité, en ce que les boucles (5a) (6a) viennent entourer les bornes précitées et sont donc maintenues en tension par les câbles qui sont dirigés vers le treuil (4), et en ce que la partie basse (7d) de la plaque d'accrochage (7) présente un déport (7e) vers l'intérieur, de sorte à venir s'ancrer dans l'espace formé à cet effet sur la partie inférieure de la colonne intérieure terminale du mât télescopique.Device according to claim 1, characterized in that the hooking part (7) is in the form of a profiled plate having in its upper upper part (7a) in its inner side two terminals (7b) spaced apart protruding by relative to the base (7c) flat of the plate, in that these two terminals (7b) are parallel to each other leaving a passage between them, and have in the lower part a hole (7b1) for the passage a connecting means, in that each terminal allows the passage and fixing of the anchoring loops (5a) (6a) formed at the ends of the traction and safety cables, in that the loops (5a) (6a) ) surround the aforementioned terminals and are thus maintained in tension by the cables which are directed towards the winch (4), and in that the lower part (7d) of the attachment plate (7) has an offset (7th) inwards, so as to be anchored in the space formed for this purpose on the lower part of the inner end column of the telescopic mast. Dispositif selon la revendication 3, caractérisé en ce que la colonne intérieure terminale (2b) présente sur un côté des ailes (2b2) tournées vers l'intérieur et une découpe (2b3) formant fenêtre laissant le passage et le positionnement de la pièce d'ancrage (7), en ce que la paroi de fond de la colonne intérieure terminale présente deux ouvertures (2b4) permettant l'engagement de moyens de fixation (10) et de liaison de la pièce d'accrochage sur la colonne, et en ce que lesdits moyens (10) n'exercent que la fonction de maintien de la pièce (7) sur la colonne (2b).Device according to claim 3, characterized in that the inner end column (2b) has on one side of the wings (2b2) facing inwards and a cutout (2b3) forming a window allowing the passage and positioning of the workpiece. anchoring (7), in that the bottom wall of the inner end column has two openings (2b4) allowing the engagement of fastening means (10) and connecting the fastener to the column, and in that that said means (10) exert only the function of holding the workpiece (7) on the column (2b). Dispositif selon la revendication 1, caractérisé en ce que la colonne fixe présente à l'endroit de la pièce support (3) une ouverture autour de laquelle et en débordement extérieur est prévue une chape (12) profilée en U fixée et rapportée de toute manière appropriée sur la face support de la colonne, en ce que la chape présente deux ailes (12a) verticales et parallèles entre lesquelles sont montées à partir d'un axe (13) deux poulies (14) de renvoi des câbles de traction et de sécurité respectivement, et en ce que l'axe (13) est débordant de la chape, et il permet la fixation du mécanisme de tension (9) du câble de sécurité.Device according to claim 1, characterized in that the fixed column has at the location of the support part (3) an opening around which and overflow is provided a clevis (12) profiled U fixed and reported in any case suitable for the support surface of the column, in that the yoke has two vertical and parallel wings (12a) between which are mounted from one axis (13) two pulleys (14) for returning the traction and safety cables respectively, and that the axis (13) is protruding from the yoke, and it allows the attachment of the tensioning mechanism (9) of the security cable. Dispositif selon les revendications 1 et 5, caractérisé en ce que le mécanisme de tension (9) comprend une biellette (9a) de grande longueur qui est montée à articulation libre sur l'axe (13) par un trou de positionnement, et son autre extrémité est agencée pour recevoir à l'opposé une autre poulie (15) de renvoi du câble de sécurité, et en ce qu'un ressort à épingle (16) est monté sur l'axe (13), et une extrémité (16a) prend appui sur la partie en regard de la colonne intérieure et l'autre extrémité (16b) est engagée dans une forme en crochet (9a) formée sur la face extérieure de la biellette.Device according to claims 1 and 5, characterized in that the tension mechanism (9) comprises a rod (9a) of great length which is mounted to free articulation on the axis (13) by a positioning hole, and its other end is arranged to receive on the opposite another pulley (15) for returning the safety cable, and in that a spring pin (16) is mounted on the axis (13), and one end (16a) is supported on the part facing the inner column and the other end (16b) is engaged in a hook shape (9a) formed on the outer face of the link. Dispositif selon la revendication 6 caractérisé en ce que le câble de traction (5) en sortie de colonne (2b) est orienté via la poulie de renvoi correspondante (14) vers le treuil, et en ce que le câble de sécurité (6) en sortie de colonne (2b) est guidé vers le mécanisme de tension (9) et prend appui sur la poulie (15) qui est enroulée, puis est enroulé sur le tambour du treuil.Device according to Claim 6, characterized in that the pulling cable (5) at the column outlet (2b) is oriented via the corresponding return pulley (14) towards the winch, and in that the safety cable (6) column outlet (2b) is guided towards the tensioning mechanism (9) and bears on the pulley (15) which is wound up, and is then wound on the drum of the winch. Dispositif selon la revendication 6, caractérisé en ce qu'il comprend un carter de protection du mécanisme de tension, du treuil et de la sortie des câbles.Device according to claim 6, characterized in that it comprises a protective casing for the tension mechanism, the winch and the exit of the cables.
EP07301558A 2006-12-01 2007-11-20 Safety device applied to machines for lifting wall and ceiling panels Active EP1927707B1 (en)

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FR0655264A FR2909398B1 (en) 2006-12-01 2006-12-01 SAFETY DEVICE APPLIED TO PANEL LIFTING EQUIPMENT AT CEILINGS AND WALLS

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EP (1) EP1927707B1 (en)
AT (1) ATE534780T1 (en)
DK (1) DK1927707T3 (en)
ES (1) ES2377007T3 (en)
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FR3073215A1 (en) * 2017-11-03 2019-05-10 Societe Francaise D'outils Professionnels Sofop TELESCOPIC MAT GENRE LIFTING DEVICE FOR HIGH-LEVEL MANEUVERING OF AN OBJECT
CN112324107A (en) * 2020-10-30 2021-02-05 郭铁森 Integrated furred ceiling installation hoisting device

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FR2967180A1 (en) * 2010-11-10 2012-05-11 Zhuhai Quan Da Industry & Commerce Cladding plates raising and presenting device for use in building construction site, has cable comprising strands that are connected separately at set of ends to winch, and another set of ends connected to last element of mast
FR3073215A1 (en) * 2017-11-03 2019-05-10 Societe Francaise D'outils Professionnels Sofop TELESCOPIC MAT GENRE LIFTING DEVICE FOR HIGH-LEVEL MANEUVERING OF AN OBJECT
CN112324107A (en) * 2020-10-30 2021-02-05 郭铁森 Integrated furred ceiling installation hoisting device
CN112324107B (en) * 2020-10-30 2021-12-14 管宗元 Integrated furred ceiling installation hoisting device

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FR2909398A1 (en) 2008-06-06
RU2447011C2 (en) 2012-04-10
RU2007144606A (en) 2009-06-10
US7811040B2 (en) 2010-10-12
ES2377007T3 (en) 2012-03-21
DK1927707T3 (en) 2012-03-12
EP1927707B1 (en) 2011-11-23
NO20076160L (en) 2008-06-02
FR2909398B1 (en) 2009-01-30
UA94405C2 (en) 2011-05-10
US20080304936A1 (en) 2008-12-11
ATE534780T1 (en) 2011-12-15

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