EP3589798B1 - System for laying and removing suspended ducting in a building - Google Patents

System for laying and removing suspended ducting in a building Download PDF

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Publication number
EP3589798B1
EP3589798B1 EP18712803.8A EP18712803A EP3589798B1 EP 3589798 B1 EP3589798 B1 EP 3589798B1 EP 18712803 A EP18712803 A EP 18712803A EP 3589798 B1 EP3589798 B1 EP 3589798B1
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EP
European Patent Office
Prior art keywords
connector
cable
duct
connectors
guiding rail
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EP18712803.8A
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German (de)
French (fr)
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EP3589798A1 (en
Inventor
Yves-Marie LALLE
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Ets Lalle Hygiene Aseptisation Service
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Ets Lalle Hygiene Aseptisation Service
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/04—Air-ducts or air channels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts

Definitions

  • the present invention relates to a system for installing and removing suspended ducts. It is intended to implement the attachment of flexible ducts under a ceiling.
  • FIG. 1 On the Fig. 1 is presented a conventional way of laying a flexible ventilation duct G.
  • a cable C must be stretched horizontally between two opposite walls of the building, an air handling unit Ct being fixed on one of the walls, on one of the walls. its faces or on the ceiling.
  • the cable is stretched using T-tensioners and the suspension of the cable is reinforced with R tie rods spaced at regular intervals and which are suspended under the ceiling or under the roof.
  • the sheath G is provided with multiple straps terminated by M carabiners and which should be hooked onto the cable C.
  • M carabiners To carry out this suspension of the sheath, an operator uses a lifting device equipped with a basket and in which he is lifted up to and near the air handling unit Ct.
  • US9152191B1 shows a system according to the preamble of claim 1.
  • regulations require that the production facility, including the production facility, be completely cleaned at least once a year. including the ventilation ducts which must be dismantled, cleaned and then reassembled.
  • the applicant sought a solution to quickly assemble and disassemble the ventilation ducts usually used in industrial buildings, shops, etc., while reducing the risk of accidents resulting from the use of lifting devices. .
  • the connectors can also be unhooked by rotating the drive pulley in the opposite direction.
  • the connector is provided with two lateral hooks capable of hooking onto the cable on either side of a corresponding socket.
  • the two side hooks allow the connector to be suspended on the cable and to be wedged astride a corresponding socket.
  • the connector comprises a plate traversed by a passage for the passage of a corresponding strap for suspension of said sheath and which is surmounted by two hooks, the latter being respectively formed of two portions of coaxial cylinders and the guide rail comprises a conduit traversed over its entire length by a longitudinal slot intended to be turned downwards in the position of installation of said guide rail, the two portions of coaxial cylinders being able to slide in the conduit, the plate projecting through said slot.
  • Each connector is correctly guided in translation in the guide rail.
  • the drive housing comprises a wall forming a stop intended to release the connectors during the rotation of the drive pulley.
  • the connectors are released automatically while the drive pulley is rotating.
  • the side wall forming a stop is bevelled by being open towards the outside to promote the ejection of the connectors.
  • the two cylindrical portions of the connector are coaxially crossed by two holes to receive the cable, each hole being extended radially and in a downward oblique direction, in the position of installation of said connector, by a groove which opens out through the corresponding cylindrical portion.
  • the connector is easy to hook onto the cable and remains hooked by its weight on the cable.
  • lugs are arranged on the two faces of the plate to prevent the connector arching in the guide rail during its sliding therein.
  • the driver is a crank.
  • the driver is an electric motor with a reversible direction of rotation.
  • the guide rail is formed of several sections and a junction connector is interposed between two consecutive sections of the guide rail.
  • junction fitting allows the continuous circulation of the connectors in the guide rail.
  • the pulley of the return box is mounted in a drawer retained by a return means.
  • the cable remains correctly tensioned.
  • the 100 system for installing and removing suspended ducts presented on the Fig. 2 is intended to implement the installation and removal of flexible ducts Gs under the ceiling of a building.
  • An interesting application consists in using it to lay, deposit flexible ducts intended for the ventilation of the enclosure of the building.
  • Such a flexible sheath Gs is formed on the Fig. 3 , a cylindrical tube, the flexible wall of which is made of a fabric permeable to air or is perforated with orifices.
  • the tube is open at one end and closed at the other. It can be built in one or more sections depending on the desired length of the sheath. It is intended to be connected to an air handling unit Cta which is designed to blow treated air in operation, for example filtered, cooled, reheated, through said sheath.
  • the Cta plant is for example fixed under the ceiling. It is provided with a ferrule Vl which is used to connect the sheath.
  • the wall of the ventilation duct is perforated or permeable so that the air admitted under slight overpressure in the duct is diffused into the enclosure of the building.
  • the Cylindrical geometry of the duct is obtained when air is blown into it. Otherwise it remains flattened and it can thus be folded to facilitate its transport.
  • Sg straps are attached regularly to the flexible sheath Gs, for example by stitching, in order to suspend it.
  • Connectors Cn designed for this purpose are respectively fixed to the free ends of the straps Sg. Such a connector Cn is shown on the Figs. 4, 5 and 6 .
  • the system 100 for laying and removing suspended ducts comprises a drive box Bt for a cable, a return box Bv for the cable which are joined together by means of a guide rail Rg.
  • the system 100 is intended to be fixed under the Pf ceiling of a building.
  • the drive unit Bt comprises a flat plate Pp1 perforated with holes allowing it to be fixed under the ceiling.
  • the gearbox Bv comprises a flat plate Pp2 perforated with holes allowing it to be fixed under the ceiling.
  • the drive unit Bt is provided with a drive mechanism Mt of a cable Cb so as to make it circulate in a loop, with at least one of its two strands driven in the guide rail, in cooperation with the return box, a hooking and unhooking means Mc of the connectors on said cable.
  • the drive mechanism Mt includes a trainer En, made up on this Fig. 10 , of a crank, and which is connected, via a transmission, to a first pulley P1 around which the cable Cb is wound and which can be driven in a loop by the trainer.
  • the transmission comprises a chain connecting two pinions respectively mounted on the axis of the drive En and on the axis of the pulley P1. These two axes are fixed perpendicularly in the flat plate Pp1.
  • the pulley P1 is arranged such that its groove is positioned in the extension of the hooking and unhooking means Mc so that one of the two strands of the cable Cb and here the strand B1 can be positioned in the hooking means and stall Mc in order to circulate therein.
  • a bifurcation pulley P2 is also fixed on the plate Pp1 while being positioned so as to be able to return the other strand B2 to the outside and along the hooking and unhooking means Mc to circulate along the latter.
  • one end of the guide rail Rg is butted against the hooking and unhooking means Mc of the connectors on the cable Cb to make circulate inside said guide rail, the strand B1 of the cable and cause the strand B2 of said cable to circulate outside and along the latter.
  • the hooking and unhooking means Mc is fixed on the flat plate Pp1 of the drive unit Bt. It is formed by a longitudinally hollow duct Cd which is crossed by a slot Ft over its entire length, the slot Ft being turned on the opposite side of the flat plate Pp1 to be turned downwards in the operating position of the drive housing Bt.
  • One end of the guide rail Rg abuts on the free end of the duct Cd.
  • a window Fn laterally passes through the wall of the conduit Cd. This window Fn is intended to allow the hooking and unhooking of the connectors on the strand of the cable which is disposed in the hooking and unhooking means Mc.
  • a Cb cable On the Fig. 7 is shown a Cb cable. It is made of braided metal strands. The cable has, at regular intervals, olive-shaped sockets D1 which are intended to wedge the connectors Cn in translation, when they are hooked onto said cable.
  • the groove of the pulley P1 present in the drive mechanism Mt of the drive unit Bt is locally widened forming housings Lg of suitable dimensions to be able to receive said bushings.
  • a connector Cn intended to be hung on the cable in order, in cooperation with others, to suspend the sheath in the system for laying and removing sheaths of the invention.
  • the connector Cn consists of a plate Pq crossed by a passage Pg and in which it is necessary to thread and attach a suspension strap of the sheath which is surmounted by a fixing means Mf intended to suspend said connector. on the cable and wedge it laterally on a corresponding D1 socket.
  • This fixing means Mf comprises a hooking means intended to suspend said connector on the cable as well as a wedging means intended to laterally wedge said connector on a corresponding socket.
  • the fixing means Mf advantageously consists of two lateral hooks C11 and C12. These two hooks are respectively formed on this Fig. 5 , of two portions Pc1, Pc2, of coaxial cylinders which surmount the two lateral sides of the plate Pq delimiting a U-shaped geometry to the connector when it is presented in front view as shown on the figure Fig. 5 .
  • the diameter of the cylindrical portions Pc is markedly greater than the thickness of the plate Pq.
  • the plate Pq is connected in the median plane of the two cylindrical portions Pc.
  • the connector Cn thus has a symmetrical geometry in a median plane of the thickness of its plate Pq, which simplifies its mounting on the strap.
  • the two cylindrical portions Pc are coaxially crossed by two holes T1, T2 to receive the cable.
  • Each hole T is extended radially and in a downward oblique direction, in the position of installation of the connector Cn, by a groove Rn which opens out through the corresponding cylindrical portion Pc.
  • the Cb connector is easily hooked onto the cable and remains hooked by the effect of gravity on the cable.
  • the distance separating the two lateral hooks C11 and C12 is greater than the length of a sleeve Dl.
  • the socket can then take place between the two side hooks C11 and C12.
  • the connector Cn is preferably hooked onto the cable Cb by overlapping a socket Dl, that is to say it is hooked with its two lateral hooks Cl1 and C12 arranged on each side of the two ends of the socket Dl, to wedge in translation the connector Cn on the cable Cb.
  • the Bv gearbox shown on Figs. 12 and 13 is intended to retain the other winding loop of the cable Cb. It comprises a pulley P3 around which the said cable can circulate in a loop, a spool Tr in which is mounted the axis of the pulley P3, which spool is slidably mounted, by means of at least one guide shaft Ag and two trees Ag1, Ag2 on the Fig. 12 , in a tensioner Td comprising a support Sp fixed on the flat plate Pp2.
  • the tensioner Td comprises a tie rod Tt fixed on the drawer Tr and which is slidably mounted in the support Sp against a return means Rp, such as a spring.
  • the cable remains correctly tensioned.
  • the pulley P3 is arranged so that its groove is positioned in the extension of the guide rail Rg so that one of the two strands of the cable Cb and here the strand B1 can be positioned in the guide rail Rg in order to circulate in the latter and that the other strand B2 can circulate along said guide rail.
  • the guide rail Rg can be fixed on the flat plate Pp2 using two fixing brackets Pn1 and Pn2.
  • Cowls generally cover the mechanisms present on the flat plates of the drive unit and of the return unit.
  • the guide rail Rg consists of a profile of constant section comprising a fixing base Ef on the ceiling and under which extends a duct Co crossed over its entire length by a longitudinal slot Ft1, which is turned on the side opposite to the fixing base Ef to be turned downwards in the installation position of said guide rail.
  • the slot Ft1 is defined between two oblique walls Pol, Po2, the free edges of which face downwards.
  • the two oblique walls form an angle of practically 90 ° between them.
  • Two longitudinal Sn grooves cut out the underside of the fixing base Ef on both sides of the Co duct, to facilitate the positioning of the connector fixing screws on the ceiling.
  • a junction connector Rj intended to join two consecutive sections of a guide rail Rg. It consists of a profile comprising a base Ef2 for fixing to the ceiling and under which a Co2 duct extends and which is extended on either side of the base for fixing Ef2 considering the longitudinal axis of said fitting. junction.
  • the Co2 duct is crossed over its entire length by a longitudinal slot Ft2, which is turned on the opposite side of the fixing base Ef2 so as to be turned downwards in the position of installation of said guide rail.
  • the internal section of the Co2 duct is a little larger than the external one of the Co duct of a section of the guide rail Rg thus making it possible to receive two ends of two sections to be assembled in the extension of one another, for guarantee continuity of circulation of the connectors throughout the length of the guide rail Rg.
  • the arrow F symbolizes the fitting of one end of a section of the guide rail Rg in the junction fitting Rj. Its Ef2 mounting base is screwed onto the ceiling.
  • the junction connector Rj can be provided laterally to its Co2 conduit with a guide support, not shown, for the strand of the cable flowing outside the guide rail.
  • the installation and operation of the system 100 for installing and removing suspended ducts of the invention are as follows.
  • the drive unit Bt As well as the return unit Bv.
  • the drive unit Bt is fixed to the ceiling Pf in the extension of the shell V1 of the air handling unit Cta, as shown on the Fig. 8 .
  • the drive unit Bt and the deflection unit Bv are connected by means of the guide rail Rg, which must also be fixed against the ceiling.
  • Rj junction fittings can be used to join together, where appropriate, the various constituent sections of the guide rail Rg.
  • a lifting device fitted with a basket should be used.
  • the nacelle is lifted with the operator as well as the flexible sheath Gs, under the drive unit Bt and at a distance from the ceiling such that the operator can stand in said nacelle.
  • the operator takes the first connector Cn located as close as possible to the closed end of the flexible sheath Gs and presents it in front of the window Fn. He turns the crank En so as to move the strand B1 of the cable Cb visible through said window until a socket D1 which the cable carries, appears in front of the window Fn.
  • the operator hooks the connector Cn by straddling said socket so that the connector Cn is hooked onto the cable Cb and without the ability to slide the cable Cb along the latter.
  • the operator again turns the crank En and the plate Pq of the connector Cn slides in the slot Ft1 of the duct Cd of the guide rail Rg and the two cylinder portions Pc1 and Pc2 of the connector Cn slide in said duct if although the connector has only one degree of freedom and cannot be unhooked from the cable.
  • the operator continues to turn the crank En to drive the connector Cn which carries the flexible sheath Gs in the guide rail Rg and until a second connector Cn appears in front of the window Fn. It hooks a second connector, then moves it forward in the guide rail Rg by turning the crank En. It proceeds in the same way for all of the connectors Cn which are then retained in the guide rail, by carrying the flexible sheath Gs, so that it remains suspended under the guide rail while being stretched.
  • all the operator has to do is fix the open end of the flexible duct Gs in the shell V1 of the air handling unit Cta.
  • the platform is lowered.
  • the air handling unit Cta is put into operation and the treated air is blown into the flexible duct Gs which diffuses it into the building.
  • the disassembly of the flexible sheath Gs is presented as follows.
  • the operator uses a lifting device equipped with a nacelle and which is raised under the drive unit Bt.
  • the operator dismantles the end of the duct Gs, from the shell V1 of the air handling unit Cta . It then drives the crank En in the other direction.
  • the last connector Cn appears through the window Fn, then is ejected outwards from the window Fn by coming to a stop Bu, visible on the Fig. 11 and which is formed by a side wall of the window and which is arranged near the first strand B1 of the cable Cb. All the connectors Cn are successively ejected in this way during the maneuver of the crank En.
  • the side wall forming a stopper Bu is bevelled by being open towards the outside to promote the ejection of the connectors Cn. The sheath can then be removed quickly, for example to carry out cleaning or its replacement.
  • the stopper remains in the hooking and unhooking means, the window also being absent.
  • the stop may advantageously be placed near the groove of the pulley of the drive mechanism. The action of the groove of the pulley on the cylindrical portions of the connector as well as the action of the stop on a lateral edge of the connector results in the ejection of the connector from the cable.
  • the system 100 for laying and removing suspended ducts of the invention makes it possible to simply and quickly lay and deposit a flexible duct under the ceiling of a building.
  • the lifting device used to assemble or disassemble the flexible duct remains stationary and minimizes the risk of accidents.
  • the driver comprises an electric motor with a reversible direction of rotation. Its control is preferably implemented using a remote control. The operator can thus unclip all the connectors from the ground, using the remote control.

Description

La présente invention concerne un système de pose et de dépose de gaines suspendues. Il est destiné à mettre en œuvre l'accrochage de gaines souples sous un plafond.The present invention relates to a system for installing and removing suspended ducts. It is intended to implement the attachment of flexible ducts under a ceiling.

Il est connu de diffuser un air traité dans un bâtiment relativement volumineux, par exemple un bâtiment industriel, un magasin. On peut ainsi installer une gaine souple, par exemple une gaine textile sous le plafond, sous la toiture d'un bâtiment et la raccorder à une centrale de traitement d'air qui est conçue pour insuffler en fonctionnement de l'air traité, par exemple filtré, refroidi, réchauffé, au travers de ladite gaine. La paroi de la gaine de ventilation est perforée ou perméable de sorte que l'air admis sous légère surpression dans la gaine est diffusé dans l'enceinte du bâtiment.It is known practice to diffuse treated air in a relatively large building, for example an industrial building, a store. It is thus possible to install a flexible duct, for example a textile duct under the ceiling, under the roof of a building and connect it to an air handling unit which is designed to blow treated air in operation, for example. filtered, cooled, reheated, through said sheath. The wall of the ventilation duct is perforated or permeable so that the air admitted under slight overpressure in the duct is diffused into the enclosure of the building.

Sur la Fig. 1 est présentée une manière conventionnelle de poser une gaine souple de ventilation G. Il faut tendre horizontalement un câble C entre deux murs opposés du bâtiment, une centrale de traitement d'air Ct étant fixée sur l'un des murs, sur l'une de ses faces ou encore au plafond. On tend le câble à l'aide de tendeurs T et l'on renforce la suspension du câble à l'aide de tirants R espacés à intervalles réguliers et qui sont suspendus sous le plafond ou sous la toiture. La gaine G est pourvue de multiples sangles terminées par des mousquetons M et qu'il convient d'accrocher sur le câble C. Pour réaliser cette suspension de la gaine, un opérateur utilise un engin de levage équipé d'une nacelle et dans laquelle il est soulevé à hauteur et à proximité de la centrale de traitement d'air Ct. Il raccorde l'extrémité ouverte de la gaine à une virole V portée par la centrale de traitement d'air. Il accroche ensuite tout ou partie des mousquetons M sur le câble C après avoir pris soin de fixer une ficelle sur le premier mousqueton. Il abaisse ensuite la nacelle et déplace l'engin porteur à proximité de chacun des tirants R, remonte dans la nacelle pour accrocher ou faire passer des mousquetons de l'autre côté dudit tirant, Il déplace à nouveau la nacelle pour l'approcher de l'autre mur et y remonte avec la ficelle qu'il tire pour déployer, tel un rideau de douche, la gaine dans sa longueur. L'autre extrémité de la gaine étant fermée, la gaine demeure tendue pendant le fonctionnement de la centrale de traitement d'air.On the Fig. 1 is presented a conventional way of laying a flexible ventilation duct G. A cable C must be stretched horizontally between two opposite walls of the building, an air handling unit Ct being fixed on one of the walls, on one of the walls. its faces or on the ceiling. The cable is stretched using T-tensioners and the suspension of the cable is reinforced with R tie rods spaced at regular intervals and which are suspended under the ceiling or under the roof. The sheath G is provided with multiple straps terminated by M carabiners and which should be hooked onto the cable C. To carry out this suspension of the sheath, an operator uses a lifting device equipped with a basket and in which he is lifted up to and near the air handling unit Ct. It connects the open end of the duct to a V ferrule carried by the air handling unit. He then hooks all or part of the M carabiners onto the cable C after having taken care to attach a string to the first carabiner. He then lowers the nacelle and moves the carrier vehicle close to each of the tie rods R, goes back into the platform to hook or pass the carabiners on the other side of said tie rod, He moves the platform again to approach it. other wall and goes up there with the string which it pulls to deploy, like a shower curtain, the sheath in its length. The other end of the duct being closed, the duct remains taut during the operation of the air handling unit.

US9152191B1 montre un système selon le préambule de la revendication 1. US9152191B1 shows a system according to the preamble of claim 1.

Dans le domaine agro-alimentaire, par exemple, la réglementation impose de nettoyer complètement au minimum une fois l'an, l'installation de production, y compris les gaines de ventilation qui doivent être démontées, nettoyées puis remontées.In the agro-food sector, for example, regulations require that the production facility, including the production facility, be completely cleaned at least once a year. including the ventilation ducts which must be dismantled, cleaned and then reassembled.

Dans une fromagerie en particulier, il faut vider complètement les hâloirs tous les quinze jours et aussi démonter, nettoyer et remonter les gaines.In a cheese factory in particular, it is necessary to completely empty the dairies every two weeks and also to dismantle, clean and reassemble the sheaths.

Partant de ce constat, le demandeur a cherché une solution pour monter et démonter rapidement les gaines de ventilation habituellement utilisées dans les bâtiments industriels, les magasins, etc., tout en réduisant les risques d'accidents consécutifs à l'utilisation des engins de levage.Based on this observation, the applicant sought a solution to quickly assemble and disassemble the ventilation ducts usually used in industrial buildings, shops, etc., while reducing the risk of accidents resulting from the use of lifting devices. .

A cet effet, est proposé un système destiné à être fixé sous le plafond d'un bâtiment pour poser une gaine souple sous ledit plafond et déposer ladite gaine, ladite gaine souple étant du type comprenant des connecteurs pour la suspendre, ledit système comprenant :

  • un boîtier d'entraînement,
  • un boîtier de renvoi,
  • un rail de guidage des connecteurs réunissant le boîtier d'entraînement avec le boîtier de renvoi,
le boîtier d'entraînement comprenant un mécanisme d'entraînement en boucle d'un câble de suspension pour les connecteurs, ledit mécanisme comprenant une poulie d'entraînement d'un premier brin dudit câble au travers du rail de guidage pour entraîner les connecteurs dans celui-ci, un entraîneur conçu pour faire tourner ladite poulie,
le boîtier de renvoi comprenant une poulie de renvoi de l'autre brin dudit câble (Cb) le long dudit rail de guidage (Rg), le câble étant pourvu à intervalles réguliers de douilles,
chaque connecteur comprenant un moyen de fixation incluant un moyen d'accrochage destiné à suspendre ledit connecteur sur le câble et un moyen de calage destiné à caler latéralement ledit connecteur sur une douille correspondante.To this end, a system is proposed intended to be fixed under the ceiling of a building in order to place a flexible duct under said ceiling and to deposit said duct, said flexible duct being of the type comprising connectors for suspending it, said system comprising:
  • a drive unit,
  • a gearbox,
  • a guide rail for the connectors connecting the drive unit with the return unit,
the drive housing comprising a loop drive mechanism of a suspension cable for the connectors, said mechanism comprising a pulley for driving a first strand of said cable through the guide rail to drive the connectors therein - here, a trainer designed to turn said pulley,
the return housing comprising a return pulley of the other strand of said cable (Cb) along said guide rail (Rg), the cable being provided at regular intervals with sockets,
each connector comprising a fastening means including a fastening means intended to suspend said connector on the cable and a wedging means intended to laterally wedge said connector on a corresponding socket.

On peut ainsi accrocher successivement les connecteurs de suspension de la gaine sur le câble et les faire circuler dans le rail de guidage pour suspendre et tendre la gaine sous le plafond en faisant tourner la poulie d'entraînement.It is thus possible to hang the sheath suspension connectors successively on the cable and make them circulate in the guide rail in order to suspend and tension the sheath under the ceiling by rotating the drive pulley.

On peut également décrocher les connecteurs en faisant tourner la poulie d'entraînement en sens inverse.The connectors can also be unhooked by rotating the drive pulley in the opposite direction.

Selon l'invention, le connecteur est pourvu de deux crochets latéraux aptes à s'accrocher sur le câble de part et d'autre d'une douille correspondante.According to the invention, the connector is provided with two lateral hooks capable of hooking onto the cable on either side of a corresponding socket.

Les deux crochets latéraux permettent de suspendre le connecteur sur le câble et de le caler à califourchon sur une douille correspondante.The two side hooks allow the connector to be suspended on the cable and to be wedged astride a corresponding socket.

Selon une caractéristique additionnelle de l'invention, le connecteur comprend une plaque traversée d'un passage pour le passage d'une sangle correspondante de suspension de ladite gaine et qui est surmontée des deux crochets, ceux-ci étant respectivement formés de deux portions de cylindres coaxiaux et le rail de guidage comprend un conduit traversé sur toute sa longueur d'une fente longitudinale destinée à être tournée vers le bas dans la position de pose dudit rail de guidage, les deux portions de cylindres coaxiaux pouvant coulisser dans le conduit, la plaque faisant saillie au travers de ladite fente.According to an additional characteristic of the invention, the connector comprises a plate traversed by a passage for the passage of a corresponding strap for suspension of said sheath and which is surmounted by two hooks, the latter being respectively formed of two portions of coaxial cylinders and the guide rail comprises a conduit traversed over its entire length by a longitudinal slot intended to be turned downwards in the position of installation of said guide rail, the two portions of coaxial cylinders being able to slide in the conduit, the plate projecting through said slot.

Chaque connecteur est correctement guidé en translation dans le rail de guidage.Each connector is correctly guided in translation in the guide rail.

Selon une caractéristique additionnelle de l'invention, le boîtier d'entraînement comprend une paroi formant une butée destinée à déchausser les connecteurs pendant la rotation de la poulie d'entraînement.According to an additional characteristic of the invention, the drive housing comprises a wall forming a stop intended to release the connectors during the rotation of the drive pulley.

Le décrochage des connecteurs se fait de manière automatique pendant la rotation de la poulie d'entraînement.The connectors are released automatically while the drive pulley is rotating.

Selon une caractéristique additionnelle de l'invention, la paroi latérale formant butée est biseautée en étant ouverte vers l'extérieur pour favoriser l'éjection des connecteurs.According to an additional characteristic of the invention, the side wall forming a stop is bevelled by being open towards the outside to promote the ejection of the connectors.

Selon une caractéristique additionnelle de l'invention, les deux portions cylindriques du connecteur sont traversées coaxialement de deux trous pour réceptionner le câble, chaque trou étant prolongé radialement et dans une direction oblique descendante, dans la position de pose dudit connecteur, d'une rainure qui débouche au travers de la portion cylindrique correspondante.According to an additional characteristic of the invention, the two cylindrical portions of the connector are coaxially crossed by two holes to receive the cable, each hole being extended radially and in a downward oblique direction, in the position of installation of said connector, by a groove which opens out through the corresponding cylindrical portion.

Le connecteur est facile à accrocher sur le câble et il demeure accroché par son poids sur le câble.The connector is easy to hook onto the cable and remains hooked by its weight on the cable.

Selon une caractéristique additionnelle de l'invention, des ergots sont disposés sur les deux faces de la plaque pour éviter l'arcboutement du connecteur dans le rail de guidage pendant son coulissement dans celui-ci.According to an additional characteristic of the invention, lugs are arranged on the two faces of the plate to prevent the connector arching in the guide rail during its sliding therein.

Selon une caractéristique additionnelle de l'invention, l'entraîneur est une manivelle.According to an additional characteristic of the invention, the driver is a crank.

Elle peut être manœuvrée par l'opérateur qui suspend la gaine au plafond.It can be operated by the operator who suspends the duct from the ceiling.

Dans une variante de réalisation, l'entraîneur est un moteur électrique à sens de rotation réversible.In an alternative embodiment, the driver is an electric motor with a reversible direction of rotation.

L'utilisation d'un moteur réduit la fatigue de l'opérateur.Using a motor reduces operator fatigue.

Selon une caractéristique additionnelle de l'invention, le rail de guidage est formé de plusieurs tronçons et un raccord de jonction est interposé entre deux tronçons consécutifs du rail de guidage.According to an additional characteristic of the invention, the guide rail is formed of several sections and a junction connector is interposed between two consecutive sections of the guide rail.

Le raccord de jonction permet la circulation en continu des connecteurs dans le rail de guidage.The junction fitting allows the continuous circulation of the connectors in the guide rail.

Selon une caractéristique additionnelle de l'invention, la poulie du boîtier de renvoi est montée dans un tiroir retenu par un moyen de rappel.According to an additional characteristic of the invention, the pulley of the return box is mounted in a drawer retained by a return means.

Le câble demeure correctement tendu.The cable remains correctly tensioned.

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels :

  • la Fig. 1 représente une vue en perspective d'un système de pose et de dépose de gaines suspendues, connu de l'état de la technique,
  • la Fig. 2 représente une vue en perspective d'un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 3 représente une vue de face d'une gaine selon l'invention,
  • la Fig. 4 représente une vue de face d'une sangle équipée d'un connecteur de suspension d'une gaine selon l'invention,
  • la Fig. 5 représente une vue de face d'un connecteur de suspension d'une gaine selon l'invention,
  • la Fig. 6 représente une vue latérale d'un connecteur de suspension d'une gaine selon l'invention,
  • la Fig. 7 représente une vue de face d'un câble porteur de douilles selon l'invention,
  • la Fig. 8 représente une vue de face d'un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 9 représente une vue de dessus d'un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 10 représente une vue de dessous d'un boîtier d'entraînement pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 11 représente une vue de face d'un boîtier d'entraînement pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 12 une vue de dessous d'un boîtier de renvoi pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 13 représente une vue de face d'un boîtier de renvoi pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 14 représente une vue de face d'un rail de guidage pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 15 représente une vue d'extrémité d'un rail de guidage pour un système de pose et de dépose de gaines suspendues selon l'invention,
  • la Fig. 16 représente une vue d'extrémité d'un rail de guidage pour un système de pose et de dépose de gaines suspendues dans lequel est monté un connecteur selon l'invention,
  • la Fig. 17 représente une vue de face d'un raccord de jonction entre deux tronçons d'un rail de guidage selon l'invention et,
  • la Fig. 18 représente une vue en coupe transversale d'un raccord de jonction et dans lequel est montée une extrémité d'un tronçon d'un rail de guidage selon l'invention.
The characteristics of the invention mentioned above, as well as others, will emerge more clearly on reading the following description of an exemplary embodiment, said description being given in relation to the accompanying drawings, among which:
  • the Fig. 1 shows a perspective view of a system for installing and removing suspended ducts, known from the state of the art,
  • the Fig. 2 shows a perspective view of a system for installing and removing suspended ducts according to the invention,
  • the Fig. 3 represents a front view of a sheath according to the invention,
  • the Fig. 4 shows a front view of a strap equipped with a connector for suspending a sheath according to the invention,
  • the Fig. 5 represents a front view of a connector for the suspension of a sheath according to the invention,
  • the Fig. 6 shows a side view of a connector for the suspension of a sheath according to the invention,
  • the Fig. 7 shows a front view of a cable carrying sockets according to the invention,
  • the Fig. 8 shows a front view of a system for installing and removing suspended ducts according to the invention,
  • the Fig. 9 shows a top view of a system for installing and removing suspended ducts according to the invention,
  • the Fig. 10 shows a bottom view of a drive unit for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 11 shows a front view of a drive unit for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 12 a bottom view of a return box for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 13 shows a front view of a return housing for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 14 shows a front view of a guide rail for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 15 shows an end view of a guide rail for a system for installing and removing suspended ducts according to the invention,
  • the Fig. 16 shows an end view of a guide rail for a system for installing and removing suspended ducts in which a connector according to the invention is mounted,
  • the Fig. 17 shows a front view of a junction connector between two sections of a guide rail according to the invention and,
  • the Fig. 18 shows a cross-sectional view of a junction connector and in which is mounted one end of a section of a guide rail according to the invention.

Le système 100 de pose et de dépose de gaines suspendues présenté sur la Fig. 2 est destiné à mettre en œuvre la pose et la dépose de gaines souples Gs sous le plafond d'un bâtiment.The 100 system for installing and removing suspended ducts presented on the Fig. 2 is intended to implement the installation and removal of flexible ducts Gs under the ceiling of a building.

Une application intéressante consiste à l'utiliser pour poser, déposer des gaines souples destinées à la ventilation de l'enceinte du bâtiment.An interesting application consists in using it to lay, deposit flexible ducts intended for the ventilation of the enclosure of the building.

Une telle gaine souple Gs est constituée sur la Fig. 3, d'un tube cylindrique dont la paroi souple est fabriquée en tissu perméable à l'air ou est perforée d'orifices. Le tube est ouvert à l'une de ses extrémités et fermé de l'autre. Il peut être construit en un ou plusieurs tronçons suivant la longueur souhaitée de la gaine. Elle est destinée à être raccordée à une centrale de traitement d'air Cta qui est conçue pour insuffler en fonctionnement de l'air traité, par exemple filtré, refroidi, réchauffé, au travers de ladite gaine. La centrale Cta est par exemple fixée sous le plafond. Elle est pourvue d'une virole Vl qui sert à raccorder la gaine.Such a flexible sheath Gs is formed on the Fig. 3 , a cylindrical tube, the flexible wall of which is made of a fabric permeable to air or is perforated with orifices. The tube is open at one end and closed at the other. It can be built in one or more sections depending on the desired length of the sheath. It is intended to be connected to an air handling unit Cta which is designed to blow treated air in operation, for example filtered, cooled, reheated, through said sheath. The Cta plant is for example fixed under the ceiling. It is provided with a ferrule Vl which is used to connect the sheath.

La paroi de la gaine de ventilation est perforée ou perméable de sorte que l'air admis sous légère surpression dans la gaine est diffusé dans l'enceinte du bâtiment. La géométrie cylindrique de la gaine est obtenue quand de l'air est insufflé dans celle-ci. Autrement elle demeure aplatie et elle peut ainsi être pliée pour faciliter son transport.The wall of the ventilation duct is perforated or permeable so that the air admitted under slight overpressure in the duct is diffused into the enclosure of the building. The Cylindrical geometry of the duct is obtained when air is blown into it. Otherwise it remains flattened and it can thus be folded to facilitate its transport.

Des sangles Sg sont rapportées régulièrement sur la gaine souple Gs, par exemple par couture, pour la suspendre. Des connecteurs Cn conçus à cet effet sont respectivement fixés sur les extrémités libres des sangles Sg. Un tel connecteur Cn est présenté sur les Figs. 4, 5 et 6.Sg straps are attached regularly to the flexible sheath Gs, for example by stitching, in order to suspend it. Connectors Cn designed for this purpose are respectively fixed to the free ends of the straps Sg. Such a connector Cn is shown on the Figs. 4, 5 and 6 .

Sur la Fig. 2, le système 100 de pose et de dépose de gaines suspendues comprend un boîtier d'entraînement Bt d'un câble, un boîtier de renvoi Bv du câble qui sont réunis par l'intermédiaire d'un rail de guidage Rg.On the Fig. 2 , the system 100 for laying and removing suspended ducts comprises a drive box Bt for a cable, a return box Bv for the cable which are joined together by means of a guide rail Rg.

Le système 100 est destiné à être fixé sous le plafond Pf d'un bâtiment.The system 100 is intended to be fixed under the Pf ceiling of a building.

Sur la Fig. 9, le boîtier d'entraînement Bt comprend une plaque plane Pp1 perforée de trous permettant sa fixation sous le plafond. Dans le même but, le boîtier de renvoi Bv comprend une plaque plane Pp2 perforée de trous permettant sa fixation sous le plafond.On the Fig. 9 , the drive unit Bt comprises a flat plate Pp1 perforated with holes allowing it to be fixed under the ceiling. For the same purpose, the gearbox Bv comprises a flat plate Pp2 perforated with holes allowing it to be fixed under the ceiling.

Sur la Fig. 10, le boîtier d'entraînement Bt est pourvu d'un mécanisme d'entraînement Mt d'un câble Cb de manière à le faire circuler en boucle, avec au moins l'un de ses deux brins entraîné dans le rail de guidage, en coopération avec le boîtier de renvoi, d'un moyen d'accrochage et de décrochage Mc des connecteurs sur ledit câble.On the Fig. 10 , the drive unit Bt is provided with a drive mechanism Mt of a cable Cb so as to make it circulate in a loop, with at least one of its two strands driven in the guide rail, in cooperation with the return box, a hooking and unhooking means Mc of the connectors on said cable.

Le mécanisme d'entraînement Mt comprend un entraîneur En, constitué sur cette Fig. 10, d'une manivelle, et qui est relié, par l'intermédiaire d'une transmission, à une première poulie P1 autour de laquelle, le câble Cb est enroulé et qui peut être entraîné en boucle par l'entraîneur. La transmission comprend une chaîne reliant deux pignons respectivement montés sur l'axe de l'entraîneur En et sur l'axe de la poulie P1. Ces deux axes sont fixés perpendiculairement dans la plaque plane Pp1.The drive mechanism Mt includes a trainer En, made up on this Fig. 10 , of a crank, and which is connected, via a transmission, to a first pulley P1 around which the cable Cb is wound and which can be driven in a loop by the trainer. The transmission comprises a chain connecting two pinions respectively mounted on the axis of the drive En and on the axis of the pulley P1. These two axes are fixed perpendicularly in the flat plate Pp1.

La poulie P1 est disposée de telle sorte que sa gorge est positionnée dans le prolongement du moyen d'accrochage et de décrochage Mc afin que l'un des deux brins du câble Cb et ici le brin B1 puissent être positionnés dans le moyen d'accrochage et de décrochage Mc afin de circuler dans celui-ci.The pulley P1 is arranged such that its groove is positioned in the extension of the hooking and unhooking means Mc so that one of the two strands of the cable Cb and here the strand B1 can be positioned in the hooking means and stall Mc in order to circulate therein.

Une poulie P2 de bifurcation est également fixée sur la plaque Pp1 en étant positionnée de sorte à pouvoir renvoyer l'autre brin B2 à l'extérieur et le long du moyen d'accrochage et de décrochage Mc pour circuler le long de celui-ci.A bifurcation pulley P2 is also fixed on the plate Pp1 while being positioned so as to be able to return the other strand B2 to the outside and along the hooking and unhooking means Mc to circulate along the latter.

Sur les Figs. 10 et 11, une extrémité du rail de guidage Rg est aboutée sur le moyen d'accrochage et de décrochage Mc des connecteurs sur le câble Cb pour faire circuler à l'intérieur dudit du rail de guidage, le brin B1 du câble et faire circuler à l'extérieur et le long de celui-ci, le brin B2 dudit câble. Le moyen d'accrochage et de décrochage Mc est fixé sur la plaque plane Pp1 du boîtier d'entraînement Bt. Il est formé d'un conduit Cd creux longitudinalement et qui est traversé d'une fente Ft sur toute sa longueur, la fente Ft étant tournée du côté opposé de la plaque plane Pp1 pour être tournée vers le bas dans la position de fonctionnement du boîtier d'entraînement Bt. Une extrémité du rail de guidage Rg est aboutée sur l'extrémité libre du conduit Cd.On the Figs. 10 and 11 , one end of the guide rail Rg is butted against the hooking and unhooking means Mc of the connectors on the cable Cb to make circulate inside said guide rail, the strand B1 of the cable and cause the strand B2 of said cable to circulate outside and along the latter. The hooking and unhooking means Mc is fixed on the flat plate Pp1 of the drive unit Bt. It is formed by a longitudinally hollow duct Cd which is crossed by a slot Ft over its entire length, the slot Ft being turned on the opposite side of the flat plate Pp1 to be turned downwards in the operating position of the drive housing Bt. One end of the guide rail Rg abuts on the free end of the duct Cd.

Sur la Fig. 11, une fenêtre Fn traverse latéralement la paroi du conduit Cd. Cette fenêtre Fn est destinée à permettre l'accrochage et le décrochage des connecteurs sur le brin du câble qui est disposé dans le moyen d'accrochage et de décrochage Mc.On the Fig. 11 , a window Fn laterally passes through the wall of the conduit Cd. This window Fn is intended to allow the hooking and unhooking of the connectors on the strand of the cable which is disposed in the hooking and unhooking means Mc.

Sur la Fig. 7 est présenté un câble Cb. Il est formé de torons métalliques tressés. Le câble dispose, à intervalles réguliers, de douilles D1 en forme d'olive et qui sont destinées à caler en translation les connecteurs Cn, lorsqu'ils sont accrochés sur ledit câble.On the Fig. 7 is shown a Cb cable. It is made of braided metal strands. The cable has, at regular intervals, olive-shaped sockets D1 which are intended to wedge the connectors Cn in translation, when they are hooked onto said cable.

On remarquera que, en référence à la Fig. 11, la gorge de la poulie P1 présente dans le mécanisme d'entraînement Mt du boîtier d'entraînement Bt est élargie localement formant des logements Lg de dimensions adaptées pour pouvoir réceptionner lesdites douilles.It will be noted that, with reference to the Fig. 11 , the groove of the pulley P1 present in the drive mechanism Mt of the drive unit Bt is locally widened forming housings Lg of suitable dimensions to be able to receive said bushings.

Sur les Figs. 5 et 6, est présenté un connecteur Cn destiné à être accroché sur le câble pour, en coopération avec d'autres, suspendre la gaine dans le système de pose et de dépose de gaines de l'invention.On the Figs. 5 and 6 , is presented a connector Cn intended to be hung on the cable in order, in cooperation with others, to suspend the sheath in the system for laying and removing sheaths of the invention.

Le connecteur Cn est constitué d'une plaque Pq traversée d'un passage Pg et dans laquelle il convient d'enfiler et d'attacher une sangle de suspension de la gaine qui est surmontée d'un moyen de fixation Mf destiné à suspendre ledit connecteur sur le câble et le caler latéralement sur une douille D1 correspondante.The connector Cn consists of a plate Pq crossed by a passage Pg and in which it is necessary to thread and attach a suspension strap of the sheath which is surmounted by a fixing means Mf intended to suspend said connector. on the cable and wedge it laterally on a corresponding D1 socket.

Ce moyen de fixation Mf comprend, un moyen d'accrochage destiné à suspendre ledit connecteur sur le câble ainsi qu'un moyen de calage destiné à caler latéralement ledit connecteur sur une douille correspondante.This fixing means Mf comprises a hooking means intended to suspend said connector on the cable as well as a wedging means intended to laterally wedge said connector on a corresponding socket.

De manière plus précise, le moyen de fixation Mf est avantageusement constitué de deux crochets latéraux C11 et C12. Ces deux crochets sont respectivement formés sur cette Fig. 5, de deux portions Pc1, Pc2, de cylindres coaxiaux qui surmontent les deux côtés latéraux de la plaque Pq délimitant une géométrie en U au connecteur lorsqu'il est présenté en vue de face comme cela apparaît sur la Fig. 5. Le diamètre des portions Pc cylindriques est nettement plus grand que l'épaisseur de la plaque Pq. La plaque Pq se raccorde dans le plan médian des deux portions cylindriques Pc. Le connecteur Cn présente ainsi une géométrie symétrique dans un plan médian de l'épaisseur de sa plaque Pq, ce qui simplifie son montage sur la sangle.More precisely, the fixing means Mf advantageously consists of two lateral hooks C11 and C12. These two hooks are respectively formed on this Fig. 5 , of two portions Pc1, Pc2, of coaxial cylinders which surmount the two lateral sides of the plate Pq delimiting a U-shaped geometry to the connector when it is presented in front view as shown on the figure Fig. 5 . The diameter of the cylindrical portions Pc is markedly greater than the thickness of the plate Pq. The plate Pq is connected in the median plane of the two cylindrical portions Pc. The connector Cn thus has a symmetrical geometry in a median plane of the thickness of its plate Pq, which simplifies its mounting on the strap.

Les deux portions cylindriques Pc sont traversées coaxialement de deux trous T1, T2 pour réceptionner le câble. Chaque trou T est prolongé radialement et dans une direction oblique descendante, dans la position de pose du connecteur Cn, d'une rainure Rn qui débouche au travers de la portion cylindrique correspondante Pc.The two cylindrical portions Pc are coaxially crossed by two holes T1, T2 to receive the cable. Each hole T is extended radially and in a downward oblique direction, in the position of installation of the connector Cn, by a groove Rn which opens out through the corresponding cylindrical portion Pc.

Le connecteur Cb s'accroche facilement sur le câble et il demeure accroché par l'effet de la gravité sur le câble.The Cb connector is easily hooked onto the cable and remains hooked by the effect of gravity on the cable.

La distance séparant les deux crochets latéraux C11 et C12 est plus grande que la longueur d'une douille Dl. La douille peut alors prendre place entre les deux crochets latéraux C11 et C12.The distance separating the two lateral hooks C11 and C12 is greater than the length of a sleeve Dl. The socket can then take place between the two side hooks C11 and C12.

On peut ainsi, en référence aux Figs. 4, 5 et 6, accrocher le connecteur Cn en engageant obliquement vers le bas ses deux rainures Rn sur le câble Cb pour que ledit connecteur Cn puisse être retenu sur ledit câble, celui-ci prenant place dans les deux trous T1 et T1.It is thus possible, with reference to Figs. 4, 5 and 6 , hook the connector Cn by engaging its two grooves Rn obliquely downwards on the cable Cb so that said connector Cn can be retained on said cable, the latter taking place in the two holes T1 and T1.

Le connecteur Cn est accroché préférentiellement sur le câble Cb en chevauchant une douille Dl, c'est-à-dire qu'il est accroché avec ses deux crochets latéraux Cl1 et C12 disposés de chaque côté des deux extrémités de la douille Dl, pour caler en translation le connecteur Cn sur le câble Cb.The connector Cn is preferably hooked onto the cable Cb by overlapping a socket Dl, that is to say it is hooked with its two lateral hooks Cl1 and C12 arranged on each side of the two ends of the socket Dl, to wedge in translation the connector Cn on the cable Cb.

Le boîtier de renvoi Bv présenté sur les Figs. 12 et 13 est destiné à retenir l'autre boucle d'enroulement du câble Cb. Il comprend une poulie P3 autour de laquelle peut circuler en boucle ledit câble, un tiroir Tr dans lequel est monté l'axe de la poulie P3, lequel tiroir étant monté à coulissement, par l'intermédiaire d'au moins un arbre de guidage Ag et deux arbres Ag1, Ag2 sur la Fig. 12, dans un tendeur Td comprenant un support Sp fixé sur la plaque plane Pp2. Le tendeur Td comprend un tirant Tt fixé sur le tiroir Tr et qui est monté à coulissement dans le support Sp à l'encontre d'un moyen de rappel Rp, tel qu'un ressort. Le câble demeure correctement tendu.The Bv gearbox shown on Figs. 12 and 13 is intended to retain the other winding loop of the cable Cb. It comprises a pulley P3 around which the said cable can circulate in a loop, a spool Tr in which is mounted the axis of the pulley P3, which spool is slidably mounted, by means of at least one guide shaft Ag and two trees Ag1, Ag2 on the Fig. 12 , in a tensioner Td comprising a support Sp fixed on the flat plate Pp2. The tensioner Td comprises a tie rod Tt fixed on the drawer Tr and which is slidably mounted in the support Sp against a return means Rp, such as a spring. The cable remains correctly tensioned.

La poulie P3 est disposée de telle sorte que sa gorge est positionnée dans le prolongement du rail de guidage Rg afin que l'un des deux brins du câble Cb et ici le brin B1 puissent être positionnés dans le rail de guidage Rg afin de circuler dans celui-ci et que l'autre brin B2 puisse circuler le long dudit rail de guidage.The pulley P3 is arranged so that its groove is positioned in the extension of the guide rail Rg so that one of the two strands of the cable Cb and here the strand B1 can be positioned in the guide rail Rg in order to circulate in the latter and that the other strand B2 can circulate along said guide rail.

Le rail de guidage Rg peut être fixé sur la plaque plane Pp2 à l'aide de deux pattes de fixation Pn1 et Pn2.The guide rail Rg can be fixed on the flat plate Pp2 using two fixing brackets Pn1 and Pn2.

Des capotages, non représentés, recouvrent en principe les mécanismes présents sur les plaques planes du boîtier d'entraînement et du boîtier de renvoi.Cowls, not shown, generally cover the mechanisms present on the flat plates of the drive unit and of the return unit.

Sur les Figs. 14 et 15, le rail de guidage Rg est constitué d'un profilé de section constante comprenant une embase de fixation Ef sur le plafond et sous laquelle s'étend un conduit Co traversé sur toute sa longueur d'une fente longitudinale Ft1, laquelle est tournée du côté opposé à l'embase de fixation Ef pour être tournée vers le bas dans la position de pose dudit rail de guidage. La fente Ft1 est définie entre deux parois obliques Pol, Po2 et dont les bords libres sont tournés vers le bas. Les deux parois obliques forment entre elles un angle de pratiquement 90 °. Deux saignées Sn longitudinales creusent la face inférieure de l'embase de fixation Ef des deux côtés du conduit Co, pour faciliter le positionnement de vis de fixation du connecteur sur le plafond.On the Figs. 14 and 15 , the guide rail Rg consists of a profile of constant section comprising a fixing base Ef on the ceiling and under which extends a duct Co crossed over its entire length by a longitudinal slot Ft1, which is turned on the side opposite to the fixing base Ef to be turned downwards in the installation position of said guide rail. The slot Ft1 is defined between two oblique walls Pol, Po2, the free edges of which face downwards. The two oblique walls form an angle of practically 90 ° between them. Two longitudinal Sn grooves cut out the underside of the fixing base Ef on both sides of the Co duct, to facilitate the positioning of the connector fixing screws on the ceiling.

Sur la Fig. 16, les portions cylindriques Pc du connecteur Cn sont retenues dans le conduit Co, en prenant appui latéralement sur les deux parois obliques Po alors que sa plaque médiane Pq ressort au travers de la fente longitudinale Ft1. On remarque la présence d'ergots Eg disposés de part et d'autre de la plaque Pq, également visible sur la Fig. 5. Ils sont destinés à éviter le coincement par arcboutement du connecteur Cn dans le rail de guidage Rg pendant son coulissement dans celui-ci.On the Fig. 16 , the cylindrical portions Pc of the connector Cn are retained in the conduit Co, bearing laterally on the two oblique walls Po while its median plate Pq emerges through the longitudinal slot Ft1. We notice the presence of lugs Eg arranged on either side of the plate Pq, also visible on the Fig. 5 . They are intended to prevent jamming by arching of the connector Cn in the guide rail Rg during its sliding therein.

Ainsi, et en référence à la Fig. 9, en tournant la manivelle En, on déplace dans un sens le brin B1 du câble Cb dans le rail de guidage Rg alors que l'autre brin B2 circule dans l'autre sens le long du rail de guidage Rg.Thus, and with reference to the Fig. 9 , by turning the crank En, the strand B1 of the cable Cb is moved in one direction in the guide rail Rg while the other strand B2 runs in the other direction along the guide rail Rg.

Sur la Fig. 17, est présenté un raccord de jonction Rj destiné à réunir deux tronçons consécutifs d'un rail de guidage Rg. Il se compose d'un profilé comprenant une embase de fixation Ef2 sur le plafond et sous laquelle s'étend un conduit Co2 et qui se prolonge de part et d'autre de l'embase de fixation Ef2 en considérant l'axe longitudinal dudit raccord de jonction. Le conduit Co2 est traversé sur toute sa longueur d'une fente longitudinale Ft2, laquelle est tournée du côté opposé de l'embase de fixation Ef2 pour être tournée vers le bas dans la position de pose dudit rail de guidage. La section interne du conduit Co2 est un peu plus grande que celle externe du conduit Co d'un tronçon du rail de guidage Rg permettant ainsi de réceptionner deux extrémités de deux tronçons à assembler dans le prolongement l'un de l'autre, pour garantir une continuité de circulation des connecteurs dans toute la longueur du rail de guidage Rg. La flèche F symbolise le montage d'une extrémité d'un tronçon du rail de guidage Rg dans le raccord de jonction Rj. Son embase de fixation Ef2 est fixée par vissage sur le plafond. Le raccord de jonction Rj peut être pourvu latéralement à son conduit Co2 d'un support de guidage, non représenté, du brin du câble circulant à l'extérieur du rail de guidage.On the Fig. 17 , is presented a junction connector Rj intended to join two consecutive sections of a guide rail Rg. It consists of a profile comprising a base Ef2 for fixing to the ceiling and under which a Co2 duct extends and which is extended on either side of the base for fixing Ef2 considering the longitudinal axis of said fitting. junction. The Co2 duct is crossed over its entire length by a longitudinal slot Ft2, which is turned on the opposite side of the fixing base Ef2 so as to be turned downwards in the position of installation of said guide rail. The internal section of the Co2 duct is a little larger than the external one of the Co duct of a section of the guide rail Rg thus making it possible to receive two ends of two sections to be assembled in the extension of one another, for guarantee continuity of circulation of the connectors throughout the length of the guide rail Rg. The arrow F symbolizes the fitting of one end of a section of the guide rail Rg in the junction fitting Rj. Its Ef2 mounting base is screwed onto the ceiling. The junction connector Rj can be provided laterally to its Co2 conduit with a guide support, not shown, for the strand of the cable flowing outside the guide rail.

Sur la Fig. 18, on distingue l'emboîtement de l'extrémité d'un tronçon du rail de guidage Rg dans le conduit Co2 du raccord de jonction Rj.On the Fig. 18 , we can see the interlocking of the end of a section of the guide rail Rg in the conduit Co2 of the junction connector Rj.

La pose et le fonctionnement du système 100 de pose et de dépose de gaines suspendues de l'invention se présentent de la manière suivante.The installation and operation of the system 100 for installing and removing suspended ducts of the invention are as follows.

Concernant la pose, il convient de fixer contre le plafond Pf d'un bâtiment, le boîtier d'entraînement Bt ainsi que le boîtier de renvoi Bv. Le boîtier d'entraînement Bt est fixé au plafond Pf dans le prolongement de la virole V1 de la centrale de traitement d'air Cta, comme cela apparaît sur la Fig. 8.Regarding the installation, it is necessary to fix against the ceiling Pf of a building, the drive unit Bt as well as the return unit Bv. The drive unit Bt is fixed to the ceiling Pf in the extension of the shell V1 of the air handling unit Cta, as shown on the Fig. 8 .

On réunit le boîtier d'entraînement Bt et le boîtier de renvoi Bv par l'intermédiaire du rail de guidage Rg et qu'il convient également de fixer contre le plafond. On peut utiliser des raccords de jonction Rj pour réunir, le cas échéant, les différents tronçons constitutifs du rail de guidage Rg.The drive unit Bt and the deflection unit Bv are connected by means of the guide rail Rg, which must also be fixed against the ceiling. Rj junction fittings can be used to join together, where appropriate, the various constituent sections of the guide rail Rg.

On peut utiliser un engin de levage équipé d'une nacelle soulevée en direction du plafond et dans laquelle intervient un opérateur pour réaliser ce travail. Ce travail n'est réalisé qu'une seule fois.We can use a lifting device equipped with a platform raised towards the ceiling and in which an operator intervenes to carry out this work. This work is only done once.

La pose d'une gaine souple de ventilation Gs se présente de la manière suivante. Il convient d'utiliser là encore un engin de levage équipé d'une nacelle. La nacelle est soulevée avec l'opérateur ainsi que la gaine souple Gs, sous le boîtier d'entraînement Bt et à une distance du plafond telle que l'opérateur puisse se tenir debout dans ladite nacelle. L'opérateur prend le premier connecteur Cn situé au plus près de l'extrémité fermée de la gaine souple Gs et le présente devant la fenêtre Fn. Il tourne la manivelle En de sorte à déplacer le brin B1 du câble Cb visible au travers de ladite fenêtre jusqu'à ce qu'une douille D1 que le câble porte, se présente devant la fenêtre Fn. L'opérateur accroche le connecteur Cn en enfourchant ladite douille si bien que le connecteur Cn est accroché sur le câble Cb et sans faculté de glisser le long de celui-ci le câble Cb. L'opérateur tourne à nouveau la manivelle En et la plaque Pq du connecteur Cn coulisse dans la fente Ft1 du conduit Cd du rail de guidage Rg et les deux portions de cylindre Pc1 et Pc2 du connecteur Cn coulissent dans ledit conduit si bien que le connecteur ne possède plus qu'un seul degré de liberté et ne peut être décroché du câble.The installation of a flexible ventilation duct Gs is as follows. Here again, a lifting device fitted with a basket should be used. The nacelle is lifted with the operator as well as the flexible sheath Gs, under the drive unit Bt and at a distance from the ceiling such that the operator can stand in said nacelle. The operator takes the first connector Cn located as close as possible to the closed end of the flexible sheath Gs and presents it in front of the window Fn. He turns the crank En so as to move the strand B1 of the cable Cb visible through said window until a socket D1 which the cable carries, appears in front of the window Fn. The operator hooks the connector Cn by straddling said socket so that the connector Cn is hooked onto the cable Cb and without the ability to slide the cable Cb along the latter. The operator again turns the crank En and the plate Pq of the connector Cn slides in the slot Ft1 of the duct Cd of the guide rail Rg and the two cylinder portions Pc1 and Pc2 of the connector Cn slide in said duct if although the connector has only one degree of freedom and cannot be unhooked from the cable.

L'opérateur continue de tourner la manivelle En pour entraîner le connecteur Cn qui porte la gaine souple Gs dans le rail de guidage Rg et jusqu'à ce qu'un second connecteur Cn se présente devant la fenêtre Fn. Il accroche un second connecteur, puis le fait avancer dans le rail de guidage Rg en tournant la manivelle En. Il procède de la même manière pour l'ensemble des connecteurs Cn qui sont alors retenus dans le rail de guidage, en portant la gaine souple Gs, de sorte qu'elle demeure suspendue sous le rail de guidage en étant étirée. Lorsque le dernier connecteur a été envoyé dans le rail de guidage, il ne reste à l'opérateur qu'à fixer l'extrémité ouverte de la gaine souple Gs dans la virole V1 de la centrale de traitement d'air Cta. La nacelle est abaissée. La centrale de traitement d'air Cta est mise en fonctionnement et de l'air traité est insufflé dans la gaine souple Gs qui le diffuse dans le bâtiment.The operator continues to turn the crank En to drive the connector Cn which carries the flexible sheath Gs in the guide rail Rg and until a second connector Cn appears in front of the window Fn. It hooks a second connector, then moves it forward in the guide rail Rg by turning the crank En. It proceeds in the same way for all of the connectors Cn which are then retained in the guide rail, by carrying the flexible sheath Gs, so that it remains suspended under the guide rail while being stretched. When the last connector has been sent to the guide rail, all the operator has to do is fix the open end of the flexible duct Gs in the shell V1 of the air handling unit Cta. The platform is lowered. The air handling unit Cta is put into operation and the treated air is blown into the flexible duct Gs which diffuses it into the building.

Le démontage de la gaine souple Gs se présente de la manière suivante. L'opérateur utilise un engin de levage équipé d'une nacelle et qui est élevé sous le boîtier d'entraînement Bt. L'opérateur démonte l'extrémité de la gaine Gs, de la virole V1 de la centrale de traitement d'air Cta. Il entraîne ensuite la manivelle En dans l'autre sens. Le dernier connecteur Cn apparaît au travers de la fenêtre Fn, puis est ensuite éjecté vers l'extérieur de la fenêtre Fn en venant sur une butée Bu, visible sur la Fig. 11 et qui est formée par une paroi latérale de la fenêtre et qui est disposée à proximité du premier brin B1 du câble Cb. Tous les connecteurs Cn sont éjectés successivement de la sorte pendant la manœuvre de la manivelle En. Préférentiellement la paroi latérale formant butée Bu est biseautée en étant ouverte vers l'extérieur pour favoriser l'éjection des connecteurs Cn. La gaine peut alors être démontée rapidement, par exemple pour procéder à un nettoyage ou à son remplacement.The disassembly of the flexible sheath Gs is presented as follows. The operator uses a lifting device equipped with a nacelle and which is raised under the drive unit Bt. The operator dismantles the end of the duct Gs, from the shell V1 of the air handling unit Cta . It then drives the crank En in the other direction. The last connector Cn appears through the window Fn, then is ejected outwards from the window Fn by coming to a stop Bu, visible on the Fig. 11 and which is formed by a side wall of the window and which is arranged near the first strand B1 of the cable Cb. All the connectors Cn are successively ejected in this way during the maneuver of the crank En. Preferably, the side wall forming a stopper Bu is bevelled by being open towards the outside to promote the ejection of the connectors Cn. The sheath can then be removed quickly, for example to carry out cleaning or its replacement.

Dans une variante de réalisation, non représentée, seule la butée subsiste dans le moyen d'accrochage et de décrochage, la fenêtre étant aussi absente. La butée peut avantageusement être disposée à proximité de la gorge de la poulie du mécanisme d'entraînement. L'action de la gorge de la poulie sur les portions cylindriques du connecteur ainsi que l'action de la butée sur un bord latéral du connecteur réalisent l'éjection du connecteur du câble.In an alternative embodiment, not shown, only the stopper remains in the hooking and unhooking means, the window also being absent. The stop may advantageously be placed near the groove of the pulley of the drive mechanism. The action of the groove of the pulley on the cylindrical portions of the connector as well as the action of the stop on a lateral edge of the connector results in the ejection of the connector from the cable.

Le système 100 de pose et de dépose de gaines suspendues de l'invention permet de poser et de déposer simplement et rapidement une gaine souple sous le plafond d'un bâtiment. L'engin de levage utilisé pour monter ou démonter la gaine souple demeure en poste fixe et minimise les risques d'accidents.The system 100 for laying and removing suspended ducts of the invention makes it possible to simply and quickly lay and deposit a flexible duct under the ceiling of a building. The lifting device used to assemble or disassemble the flexible duct remains stationary and minimizes the risk of accidents.

Dans une autre variante de réalisation, non représentée, l'entraîneur comprend un moteur électrique à sens de rotation réversible. Sa commande est préférentiellement mise en œuvre à l'aide d'une télécommande. L'opérateur peut ainsi dégrafer tous les connecteurs depuis le sol, en utilisant la télécommande.In another variant embodiment, not shown, the driver comprises an electric motor with a reversible direction of rotation. Its control is preferably implemented using a remote control. The operator can thus unclip all the connectors from the ground, using the remote control.

Claims (10)

  1. System (100) intended to be fixed under the ceiling (Pf) of a building to lay a flexible duct (Gs) under said ceiling and remove said duct, said flexible duct (Gs) being of the type comprising connectors (Cn) to suspend it, characterized in that said system comprises:
    - a driving unit (Bt),
    - a return unit (Bv),
    - a guiding rail (Rg) for the connectors joining the driving unit (Bt) with the return unit (Bv),
    the driving unit (Bt) comprising a mechanism (Mt) for driving in a loop a suspension cable (Cb) for the connectors (Cn), said mechanism (Mt) comprising a pulley (P1) for driving a first strand (B1) of said cable (Cb) through the guiding rail (Rg) to drive the connectors (Cn) therein, a driver (En) designed to turn said pulley, the return unit (Bv) comprising a pulley (P3) for returning the other strand (B2) of said cable (Cb) along said guiding rail (Rg),
    the cable (Cb) being provided at regular intervals with bushes (D1),
    each connector (Cn) comprising a fixing means (Mf) including an attachment means intended to suspend said connector on the cable and a chocking means intended to laterally chock said connector on a corresponding bush (D1),
    each connector (Cn) being provided with two lateral hooks (C11, C12) capable of being hooked onto the cable on either side of a corresponding bush (D1).
  2. System (100) according to Claim 1, characterized in that the connector (Cn) comprises a plate (Pq) passed through by a passage (Pg) for the passage of a corresponding strap (Sg) for suspending said duct and which is topped by the two hooks (Cl), the latter being respectively formed by two portions (Pc) of coaxial cylinders and in that the guiding rail (Rg) comprises a duct (Co) that is pierced over its entire length by a longitudinal slit (Ft1) intended to be turned downwards in the position of laying of said guiding rail, the two portions (Pc) of coaxial cylinders being able to slide in the duct (Co), the plate (Pq) protruding through said slit.
  3. System (100) according to Claim 1 or 2, characterized in that the driving unit (Bt) comprises a wall forming an abutment (Bu) intended to dislodge the connectors (Cn) during the rotation of the driving pulley (P1) .
  4. System (100) according to Claim 3, characterized in that the abutment-forming lateral wall (Bu) is bevelled by being open outward to promote the ejection of the connectors (Cn).
  5. System (100) according to Claims 2, 3 or 4, characterized in that the two cylindrical portions (Pc1, Pc2) of the connector (Cn) are passed through coaxially by two holes (T1, T2) to receive the cable (Cb), each hole (T) being prolonged radially and in a downward oblique direction, in the laying position of said connector, by a groove (Rn) which emerges through the corresponding cylindrical portion (Pc).
  6. System (100) according to any one of Claims 2 to 5, characterized in that lugs (Eg) are disposed on the two faces of the plate (Pq) to prevent the butting of the connector (Cn) in the guiding rail (Rg) while it is sliding therein.
  7. System (100) according to any one of the preceding claims, characterized in that the driver (En) is a handle.
  8. System (100) according to any one of Claims 1 to 6, characterized in that the driver is an electric motor with reversible direction of rotation.
  9. System (100) according to any one of the preceding claims, characterized in that the guiding rail (Rg) is formed by several sections and in that a junction coupling (Rj) is interposed between two consecutive sections of the guiding rail (Rg).
  10. System (100) according to any one of the preceding claims, characterized in that the pulley (P3) of the return unit (Bv) is mounted in drawer retained by a return means (Rp).
EP18712803.8A 2017-03-03 2018-03-02 System for laying and removing suspended ducting in a building Active EP3589798B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1751736A FR3063505B1 (en) 2017-03-03 2017-03-03 SYSTEM FOR INSTALLATION AND REMOVAL OF SUSPENDED SHEATHINGS IN A BUILDING
PCT/EP2018/055217 WO2018158447A1 (en) 2017-03-03 2018-03-02 System for laying and removing suspended ducting in a building

Publications (2)

Publication Number Publication Date
EP3589798A1 EP3589798A1 (en) 2020-01-08
EP3589798B1 true EP3589798B1 (en) 2021-04-28

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EP18712803.8A Active EP3589798B1 (en) 2017-03-03 2018-03-02 System for laying and removing suspended ducting in a building

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EP (1) EP3589798B1 (en)
FR (1) FR3063505B1 (en)
MX (1) MX2019010456A (en)
WO (1) WO2018158447A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115493281B (en) * 2022-08-23 2023-12-05 广东申安建设科技有限公司 Air pipe fixing structure applied to laboratory heating and ventilation equipment and mounting method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425417B1 (en) * 2000-11-02 2002-07-30 Rite-Hite Holding Corporation Fabric air duct held in tension
US9152191B1 (en) * 2013-08-13 2015-10-06 Amazon Technologies, Inc. Mobile soft duct system

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* Cited by examiner, † Cited by third party
Title
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Also Published As

Publication number Publication date
MX2019010456A (en) 2019-12-11
FR3063505A1 (en) 2018-09-07
FR3063505B1 (en) 2019-04-19
WO2018158447A1 (en) 2018-09-07
EP3589798A1 (en) 2020-01-08

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