EP0477068B1 - Exhaust system for building façades - Google Patents

Exhaust system for building façades Download PDF

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Publication number
EP0477068B1
EP0477068B1 EP91402425A EP91402425A EP0477068B1 EP 0477068 B1 EP0477068 B1 EP 0477068B1 EP 91402425 A EP91402425 A EP 91402425A EP 91402425 A EP91402425 A EP 91402425A EP 0477068 B1 EP0477068 B1 EP 0477068B1
Authority
EP
European Patent Office
Prior art keywords
opening
cable
opening leaf
fixed
fixed frame
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.)
Expired - Lifetime
Application number
EP91402425A
Other languages
German (de)
French (fr)
Other versions
EP0477068A2 (en
EP0477068A3 (en
Inventor
Jean-Pierre Parisot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SOUCHIER FAGES
Original Assignee
SOUCHIER FAGES
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Filing date
Publication date
Application filed by SOUCHIER FAGES filed Critical SOUCHIER FAGES
Publication of EP0477068A2 publication Critical patent/EP0477068A2/en
Publication of EP0477068A3 publication Critical patent/EP0477068A3/en
Application granted granted Critical
Publication of EP0477068B1 publication Critical patent/EP0477068B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1433—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/146—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1466—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with pneumatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/1426—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means
    • F24F2013/1473—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre characterised by actuating means with cams or levers

Definitions

  • the present invention relates to a smoke extraction device, of the smoke extraction chassis type with integrated mechanism for building facades.
  • a smoke extraction chassis essentially comprises two elements on the one hand a frame and on the other hand an opening capable of moving relative to the frame, under the effect of an appropriate control system in order to obtain a quick opening of the chassis ensuring smoke evacuation.
  • a frame is generally produced from metal profiles, in particular from extruded aluminum.
  • the opening of a smoke extraction chassis is provided with a locking system, generally of the strike-lock type and the opening control system is produced by a cable pulling device, handle " pull-release "or is fitted with a cable fixing and the opening and closing control system is produced by a device of the winch type with opening clutch.
  • Such smoke extraction frames are described in patent EP-A-0304753 or in patent EP-A 0430721 (state of the art according to Article 54 (3) EPC), they notably include opening, reclosing systems, ensuring closing the opening.
  • a smoke extraction chassis must also include rapid ejection, damping and balancing systems for the opening.
  • the difficulty in producing these smoke extraction chassis lies in the integration of all these systems into the chassis, this integration having to be carried out so as to respond not only to aesthetic concerns but also to reasons of reliability, while keeping the frame width and height dimensions compatible with the uses of the building.
  • the present invention has set itself the objective of providing a smoke extraction chassis of which all the mechanical, or electrical or pneumatic control systems which are necessary for the opening and closing of the opening are fully integrated, under a reduced volume in the frame frame, so as to eliminate all the protrusions which are encountered on the frame frames of the smoke extraction frame currently produced.
  • This invention therefore relates to a smoke extraction device for building facades comprising a frame in two main parts, a frame and an opening, the latter being provided with means ensuring rapid opening, this device being characterized in that the control systems , ejection made using an L-shaped lever that can pivot about an axis and fixed in the vertical upright of the frame, the small arm of this lever being provided with a return means such as a tension spring, or any other type of spring making it possible to obtain the same functions and the end of the large arm of said lever being able to press on the leaf by any means suitable such as in particular caster, anti-friction pad, damping and balancing systems produced from a single-acting cylinder and a spring, said cylinder having its cylinder mounted on a part fixed in the frame of the frame and its rod mounted on a plate which is fixed to the leaf and said spring having one of its ends mounted on said part and the other mounted so as to be able to move in a light provided in said plate, and the closing systems of the opening are integrated into the frame frame
  • the locking system of the opening is of the mechanical control type, maintained in the closed position by the continuous tension of a cable, the passage of the latter, actuated by a winch outside the chassis. , taking place inside the frame profile.
  • the locking system of the opening is of the type with mechanical control maintained in the closed position by a cable-controlled lock, connected to a control means external to the chassis, said lock being embedded in the upper cross member of the frame and retaining a keeper fixed to the internal face of the upper cross member of the opening.
  • the locking system of the opening is of the electrically controlled type maintained in the closed position by an electromagnetic lock embedded in the upper cross member of the frame and a keeper fixed on the internal face of the upper cross member of the opening, the power supply cables of the lock being positioned inside the frame profile.
  • the locking system of the opening is of the pneumatically controlled type with maintenance in closed position by a lock embedded in the upper crossmember of the frame and a keeper fixed on the internal face of the upper cross member of the leaf, the pneumatic supply lines of the lock control system being positioned inside the frame profile.
  • the reclosing system of the opening is of the mechanical type with cable and winch, the cable passing inside the profile of the frame.
  • the reclosing system of the opening is of the electric type and it comprises an electric jack consisting of an endless screw driven by a geared motor group whose useful stroke is half less of that necessary for the reclosing of the opening, of a spring return lever which can move along said worm and on which is mounted a pair of pulleys on which the strands of said cable are wound, each of these strands passing over another pulley which is fixed to the frame in order to balance forces, and a nut engaged on said worm screw acting on said lifter in order to control the reclosing of the opening.
  • the reclosing system of the opening is of the pneumatic type and it comprises a double-acting pneumatic cylinder whose useful stroke is half less than that necessary for closing the opening and a part or reference forming a lifting beam on which is mounted a pair of pulleys, this assembly, provided with a return means, such as a spring being guided along the rod of said jack and one of the strands of the cable passing over each of said pulleys passing over another pulley fixed to the frame, this system ensuring the balancing of forces.
  • FIGS. 1 and 2 one can see the two main parts of the smoke extraction chassis object of the present invention on the one hand the frame 10 and on the other hand the opening 12.
  • FIG. 1 there is shown in broken lines the traction cable 14 which under the effect of an electric or pneumatic cylinder (not shown) controls the closing of the opening.
  • the locking system of the sash on the frame can be either mechanical, or mechanical or electrical or pneumatic unlocking.
  • the mechanical locking system can be produced using a lock controlled by a metal cable connected to a control station outside the chassis (for example a handle of the "pull-release" type.
  • a lock shown diagrammatically at 16 on the FIG. 1 is embedded in the upper crossmember of the frame 10 and it retains a keeper 18 which is fixed on the internal face of the upper crossmember of the opening 12.
  • a cable is used, the tension of which continues under the effect of a winch or the like ensures that the door is kept in the closed position.
  • the cable is fixed to the upper cross member of the opening 12 in place of the keeper 18 and it is deflected laterally using a curved pulley or tube, this device then taking the place of the lock. 16.
  • the electrical locking system is produced in the form of an electromagnetic lock, embedded in the upper cross member of the frame (at the same location as the lock 16 described above) and a strike fixed on the internal face of the upper cross member of the opening 12 in the same manner as the keeper 18 of the mechanical system described above.
  • the electric cables which are necessary to supply the electromagnetic lock are positioned inside the profile of the frame 10.
  • the pneumatic locking system comprises a pneumatically controlled lock which, like the lock 16 of the mechanical locking system described above, is embedded in the upper cross member of the frame 10, and a strike fixed on the internal face of the upper cross member opening 12 in the same manner as the keeper 18 described above.
  • the pipes which are necessary for the pneumatic supply of the lock are placed inside the profile of the frame 10.
  • the ejection system ensuring the rapid opening of the opening 12 has been shown in FIGS. 1 and 2.
  • This ejection system is designed so as to permanently exert an opening force on this opening 10 so that during unlocking of the opening, the latter can pivot and be actuated by the ejector in the direction of opening, this opening being completed under the own weight of the opening.
  • the ejection system consists of an L-shaped lever designated as a whole by the reference 20 and which can pivot around an axis 22 placed in the vertical upright of the frame 10.
  • a spring 24 positioned in the vertical upright of the frame 10 exerts a permanent traction on the small arm 26 of this lever 20 and this force is retransmitted on the opening 12 by the large lever arm 28 of the lever 20, which ensures an ejection, therefore a rapid opening of the opening as soon as it is unlocked.
  • the pivoting force of the large lever arm 28 can also be produced by a spring or a combination of compression or torsion springs or by any other spring acting on the small arm 26 of this lever 20, and this as a function of size and efforts to transmit.
  • the contact between the large lever arm 28 and the internal surface of the door 12 can be made by any means suitable such as in particular roulette, anti-friction pad etc ...
  • This system essentially consists of a single-acting cylinder 30 with hydraulic or pneumatic damping and a spring 32.
  • the cylinder 30 provides damping and the spring 32 balances by partially compensating for the weight of the opening 10 and therefore facilitating subsequent reclosure.
  • the action of the spring 32 is carried out so that it begins after the opening ejection stroke so as not to hinder the ejection of the opening element at the start of the opening.
  • the cylinder of the cylinder 30 and one of the ends of the spring 32 are mounted in the frame 10 by means of a fixing plate 34, and the end of the rod 36 of the cylinder 30 as well as the other end of the spring 32 are made integral with the opening 12 by means of a plate 38.
  • the fixing of this end of the spring 32 on the plate 38 is carried out so that this end spring can slide in an oblong slot 40 provided in the plate 38.
  • the smoke extraction chassis is provided with a system ensuring the closing of the opening.
  • this system can be of the mechanical type: cable winch 14 (FIG. 1) ensuring the ascent of the opening and the cable of which passes inside the profile of the frame 10 up to the top cross member by being fixed on the opening.
  • the embodiment of the opening by electromagnetic or pneumatic lock without integrated reclosing system requires that the chassis is then accessible in order to be closed manually using a handle fixed on the opening.
  • FIGS 6 to 7 of the accompanying drawings schematically show an embodiment of an electric reclosing system of the opening 12, according to the invention.
  • This system is in the form of an electric actuator which essentially comprises an endless screw 42 driven by a geared motor group 44 and along which a nut 46 can move, engaged on this screw 42 and making it possible to move a spreader 48 as will be described below.
  • the useful travel of the worm is equal to half the travel of each of the strands 14 ′, 14 ⁇ of the cable 14 ensuring the opening-standing link and the nut 46 which moves along the worm 42 when rotating the latter has the function of ensuring the reclosure of the opening by action on the lifter 48 by resting on the latter as will be described below with reference to FIGS. 7 and 8.
  • the lifter 48 is produced in the form of '' a curtain piece recalled by a spring 50, guided in translation along the worm 42 and provided with a pulley 52 on which the control cable 14 is wound.
  • This lifter therefore has the function of keeping the two strands 14 ′, 14 ⁇ of the cable connected to the leaf 12 (not visible in the drawing), a minimum tension so that this cable does not leave the grooves of the guide pulleys 54, 54 ′, but without hampering the effort of opening of the ejection systems described above with reference to FIGS. 1 and 2.
  • this minimum tension is obtained for example by a spring 50 or by any equivalent means, including a friction bearing.
  • Each of the two strands of the cable coming from the lifter is directed towards a pulley 70 which has the primary function of ensuring a tension equal to the two strands of the cable, the second function of this pulley 70, which is freely mounted on a slide according to a stroke from 20 to 30 mm approximately, being to exert a traction on a cable 72, the value of which is equal, upon reclosing, to the result of the weight of the opening leaf less balancing, the whole being retransmitted by the two strands 14 and 14 ′.
  • This cable 72 guided by a flexible metal sheath transmits this force to a return device, located in the high sleeper cross member, ensures the resetting of the electromagnetic lock, without hampering its opening triggering operation.
  • This system is completed by two end-of-travel stops: one 56 actuated by the nut 46 ( Figures 6 and 7), the other (not visible in the drawing) placed in the electromagnetic lock. These two stops make it possible to obtain the information necessary for the logic system which is responsible for managing the movements of the nut 46 in particular.
  • FIGS. 6 to 8 shows that the fundamental operating principle of this device consists in making the opening 12 free when it is opened, this having to be carried out in a very short period of time less than 30 seconds. It is therefore necessary that the opening speed of the opening is not subject to the speed of movement of the nut 46 of the electric jack described above, this in particular for reasons of required electric power and volume of size of the gear motor assembly 44 driving the electric actuator.
  • Figure 6 shows the device in the closed standby position.
  • the lifter 48 under the action of its spring 50 keeps the two strands 14 ′ and 14 ⁇ of the control cable under tension and the stop 56 is biased by the nut 46 which is in the end of travel position .
  • Figure 7 shows the device in the open end position. We see that the lifter has moved along the worm 42 until it comes into abutment against the nut 46, still in the end position. This displacement of the spreader was made under the effect of the operation of the ejection system described above with reference to Figures 1 and 2.
  • Figure 8 shows the device in the closed end position.
  • the gear motor 44 has rotated the endless screw 42 along which moved the nut 46 causing the displacement (to the left by looking at the drawing) of the lifter 48 which, by means of its pair pulleys 52 and 52 ′ exerts traction on the two strands 14 ′ and 14 ⁇ of the control cable causing the opening of the opening, resetting of the lock and therefore the automatic locking of the keeper 18 by the lock 16 ( Figures 1 and 2).
  • the system ensuring the closing of the opening can also be, according to a variant of the present invention, of the pneumatic type. This variant is shown in Figures 9 to 11 in various operating positions.
  • Such a pneumatic reclosing system essentially comprises a double-acting pneumatic cylinder 58.
  • the stroke of this cylinder is chosen at a value less than half the stroke which is necessary for the reclosing of the opening. This choice follows from consideration of overall dimensions.
  • the system also comprises a part forming a return 62 on which are mounted two pulleys 64, 64 ′ on which the respective strands 14 ′ and 14 ⁇ of the control cable are wound 14.
  • the return assembly 62-pulleys 64, 64 ′ is mounted so as to be able to slide along the rod 60 of the jack 58, this rod ensuring the guidance of said assembly.
  • a return spring 66 is provided, one end of which is fixed to the reference 62 and the function of which is identical to that obtained by the spring 50 (FIGS. 6, 7, 8) of the electric actuator, that is to say ensure minimum tension with regard to strands of cable 14 ′ and 14 ⁇ .
  • the return assembly 62-pulleys 64, 64 ' makes it possible to restore the strands 14' and 14 "of the control cable 14, ensuring the opening link 12, dormant 10, as has already been mentioned above, the entire stroke Indeed, this assembly ensures the doubling of this stroke, given that each of the strands 14 ′, 14 ⁇ of the cable 14 passes over a fixed pulley 68 which is fixed on the frame 10 acting as a lifting beam. '' balance efforts when necessary.
  • the frame of the frame 10 includes the pulleys 54, 54 ′ which are necessary for guiding the strands 14 ′, 14 ⁇ of the cable 14 for controlling the reclosing of the opening 12.
  • the pulleys 54, 54 ′ which are necessary for guiding the strands 14 ′, 14 ⁇ of the cable 14 for controlling the reclosing of the opening 12.
  • FIGS. 9 to 11 shows that the fundamental operating principle of this device conforms to the invention consists in making the cylinder rod free vis-à-vis the 62-pulley return assembly 64-64 ′, the opening speed of the rod 60 of the pneumatic cylinder being greater than the speed of movement of the 'return assembly 62-pulleys 64-64 ′, generated by the opening of the opening 12. It is therefore necessary, to avoid that the strands 14 ′ and 14 ⁇ of the control cable relax and therefore can come out grooves of the pulleys 64, 64 ′ and 68, that the opening displacement speeds of the return assembly 62-pulleys 64, 64 ′ are not subject to the speed of the rod 60 of the pneumatic cylinder.
  • FIG. 9 represents the position of the various elements of this pneumatic system when the opening is in the closed waiting position. In this position, the jack 58 is at rest and the lifter assembly 62-pulleys 64, 64 ′ is biased against the jack using the spring 68.
  • Figure 11 shows the position at the end of opening. In this position, the lifter assembly 62-pulleys 64, 64 ′ has been driven until it comes into abutment on the end of the rod 60 of the jack which is in the end of opening stroke position.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Air-Flow Control Members (AREA)
  • Special Wing (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Description

La présente invention concerne un dispositif de désenfumage, du type châssis de désenfumage à mécanisme intégré pour des façades de bâtiment.The present invention relates to a smoke extraction device, of the smoke extraction chassis type with integrated mechanism for building facades.

On sait qu'un châssis de désenfumage comprend essentiellement deux éléments d'une part un dormant et d'autre part un ouvrant susceptible de se déplacer par rapport au dormant, sous l'effet d'un système de commande approprié afin d'obtenir une ouverture rapide du châssis assurant l'évacuation des fumées. Un tel châssis est généralement réalisé à partir de profilés métalliques notamment en aluminium extrudé. D'une façon générale, l'ouvrant d'un châssis de désenfumage est muni d'un système de verrouillage, généralement du type verrou-gâche et le système de commande de l'ouverture est réalisé par un dispositif câble de traction, poignée "tirer-lâcher" ou est muni d'une fixation de câble et le système de commande de l'ouverture et de la fermeture est réalisé par un dispositif du type treuil à débrayage d'ouverture.We know that a smoke extraction chassis essentially comprises two elements on the one hand a frame and on the other hand an opening capable of moving relative to the frame, under the effect of an appropriate control system in order to obtain a quick opening of the chassis ensuring smoke evacuation. Such a frame is generally produced from metal profiles, in particular from extruded aluminum. In general, the opening of a smoke extraction chassis is provided with a locking system, generally of the strike-lock type and the opening control system is produced by a cable pulling device, handle " pull-release "or is fitted with a cable fixing and the opening and closing control system is produced by a device of the winch type with opening clutch.

De tels châssis de désenfumage sont décrits dans le brevet EP-A-0304753 ou dans le brevet EP-A 0430721 (état de la technique selon Article 54(3)CBE), ils comportent notamment des systèmes d'ouverture, de refermeture, assurant la refermeture de l'ouvrant.Such smoke extraction frames are described in patent EP-A-0304753 or in patent EP-A 0430721 (state of the art according to Article 54 (3) EPC), they notably include opening, reclosing systems, ensuring closing the opening.

Un châssis de désenfumage doit également comporter des systèmes d'éjection rapide, d'amortissement et d'équilibrage de l'ouvrant. La difficulté de la réalisation de ces châssis de désenfumage réside dans l'intégration de tous ces systèmes au châssis, cette intégration devant être effectuée de façon à répondre non seulement à des préoccupations d'ordre esthétique mais également à des motifs de fiabilité, tout en conservant au châssis des cotes largeur et hauteur compatibles avec les usages du bâtiment.A smoke extraction chassis must also include rapid ejection, damping and balancing systems for the opening. The difficulty in producing these smoke extraction chassis lies in the integration of all these systems into the chassis, this integration having to be carried out so as to respond not only to aesthetic concerns but also to reasons of reliability, while keeping the frame width and height dimensions compatible with the uses of the building.

La présente invention s'est fixée pour objectif d'apporter un châssis de désenfumage dont tous les systèmes de commande mécanique, ou électrique ou pneumatique, qui sont nécessaires à l'ouverture et à la fermeture de l'ouvrant sont totalement intégrés, sous un volume réduit dans le dormant du châssis, de façon à éliminer toutes les saillies que l'on rencontre sur les dormants de châssis de désenfumage actuellement réalisés.The present invention has set itself the objective of providing a smoke extraction chassis of which all the mechanical, or electrical or pneumatic control systems which are necessary for the opening and closing of the opening are fully integrated, under a reduced volume in the frame frame, so as to eliminate all the protrusions which are encountered on the frame frames of the smoke extraction frame currently produced.

Cette invention a donc pour objet un dispositif de désenfumage pour façades de bâtiment comportant un châssis en deux parties principales un dormant et un ouvrant, ce dernier étant muni de moyens en assurant une ouverture rapide, ce dispositif étant caractérisé en ce que les systèmes de commande, d'éjection réalisés à l'aide d'un levier en forme de L pouvant pivoter autour d'un axe et fixé dans le montant vertical du dormant, le petit bras de ce levier étant muni d'un moyen de rappel tel qu'un ressort de traction, ou tout autre type de ressort permettant d'obtenir les mêmes fonctions et l'extrémité du grand bras dudit levier pouvant appuyer sur l'ouvrant par tout moyen approprié tel que notamment roulette, patin anti-friction, les systèmes d'amortissement et d'équilibrage réalisés à partir d'un vérin à simple effet et d'un ressort, ledit vérin ayant son cylindre monté sur une pièce fixée dans le bâti du dormant et sa tige montée sur une platine qui est fixée à l'ouvrant et ledit ressort ayant l'une de ses extrémités montée sur ladite pièce et l'autre montée de façon à pouvoir se déplacer dans une lumière prévue dans ladite platine, et les systèmes de refermeture de l'ouvrant sont intégrés dans le dormant du châssis, ce dernier servant d'habillage à tous ces systèmes.This invention therefore relates to a smoke extraction device for building facades comprising a frame in two main parts, a frame and an opening, the latter being provided with means ensuring rapid opening, this device being characterized in that the control systems , ejection made using an L-shaped lever that can pivot about an axis and fixed in the vertical upright of the frame, the small arm of this lever being provided with a return means such as a tension spring, or any other type of spring making it possible to obtain the same functions and the end of the large arm of said lever being able to press on the leaf by any means suitable such as in particular caster, anti-friction pad, damping and balancing systems produced from a single-acting cylinder and a spring, said cylinder having its cylinder mounted on a part fixed in the frame of the frame and its rod mounted on a plate which is fixed to the leaf and said spring having one of its ends mounted on said part and the other mounted so as to be able to move in a light provided in said plate, and the closing systems of the opening are integrated into the frame frame, the latter serving as a covering for all these systems.

Selon une caractéristique de la présente invention, le système de verrouillage de l'ouvrant est du type à commande mécanique, à maintien en position fermée par la tension continue d'un câble, le passage de ce dernier, actionné par un treuil extérieur au châssis, s'effectuant à l'intérieur du profil du dormant.According to a characteristic of the present invention, the locking system of the opening is of the mechanical control type, maintained in the closed position by the continuous tension of a cable, the passage of the latter, actuated by a winch outside the chassis. , taking place inside the frame profile.

Selon une autre caractéristique de la présente invention, le système de verrouillage de l'ouvrant est du type à commande mécanique à maintien en position fermée par un verrou à commande par câble, relié à un moyen de commande extérieur au châssis, ledit verrou étant encastré dans la traverse haute du dormant et retenant une gâche fixée sur la face interne de la traverse haute de l'ouvrant.According to another characteristic of the present invention, the locking system of the opening is of the type with mechanical control maintained in the closed position by a cable-controlled lock, connected to a control means external to the chassis, said lock being embedded in the upper cross member of the frame and retaining a keeper fixed to the internal face of the upper cross member of the opening.

Selon un autre exemple de réalisation de l'invention, le système de verrouillage de l'ouvrant est du type à commande électrique à maintien en position fermée par un verrou électro-magnétique encastré dans la traverse haute du dormant et une gâche fixée en face interne de la traverse haute de l'ouvrant, les câbles d'alimentation électrique du verrou étant positionnés à l'intérieur du profil du dormant.According to another exemplary embodiment of the invention, the locking system of the opening is of the electrically controlled type maintained in the closed position by an electromagnetic lock embedded in the upper cross member of the frame and a keeper fixed on the internal face of the upper cross member of the opening, the power supply cables of the lock being positioned inside the frame profile.

Selon encore un autre exemple de réalisation de l'invention, le système de verrouillage de l'ouvrant est du type à commande pneumatique à maintien en position fermée par un verrou encastré dans la traverse haute du dormant et une gâche fixée en face interne de la traverse haute de l'ouvrant, les canalisations d'alimentation pneumatique du système de commande du verrou étant positionnées à l'intérieur du profil du dormant.According to yet another exemplary embodiment of the invention, the locking system of the opening is of the pneumatically controlled type with maintenance in closed position by a lock embedded in the upper crossmember of the frame and a keeper fixed on the internal face of the upper cross member of the leaf, the pneumatic supply lines of the lock control system being positioned inside the frame profile.

Selon une autre caractéristique l'invention, le système de refermeture de l'ouvrant est du type mécanique à câble et treuil, le câble passant à l'intérieur du profil du dormant.According to another characteristic of the invention, the reclosing system of the opening is of the mechanical type with cable and winch, the cable passing inside the profile of the frame.

Selon un autre mode de réalisation de l'invention, le système de refermeture de l'ouvrant est du type électrique et il comporte un vérin électrique constitué d'une vis sans fin entraînée par un groupe moto-réducteur dont la course utile est moitié moindre de celle nécessaire à la refermeture de l'ouvrant, d'un palonnier à rappel par ressort pouvant se déplacer le long de ladite vis sans fin et sur lequel est montée une paire de poulies sur lesquelles s'enroulent les brins dudit câble, chacun de ces brins passant sur une autre poulie qui est fixée au dormant afin d'assurer l'équilibrage des efforts, et d'un écrou en prise sur ladite vis sans fin agissant sur ledit palonnier afin de commander la refermeture de l'ouvrant.According to another embodiment of the invention, the reclosing system of the opening is of the electric type and it comprises an electric jack consisting of an endless screw driven by a geared motor group whose useful stroke is half less of that necessary for the reclosing of the opening, of a spring return lever which can move along said worm and on which is mounted a pair of pulleys on which the strands of said cable are wound, each of these strands passing over another pulley which is fixed to the frame in order to balance forces, and a nut engaged on said worm screw acting on said lifter in order to control the reclosing of the opening.

Selon encore un autre mode de réalisation de cette invention, le système de refermeture de l'ouvrant est du type pneumatique et il comporte un vérin pneumatique à double effet dont la course utile est moitié moindre de celle nécessaire à la refermeture de l'ouvrant et d'une pièce ou renvoi formant palonnier sur laquelle est montée une paire de poulies, cet ensemble, muni d'un moyen de rappel, tel qu'un ressort étant guidé le long de la tige dudit vérin et l'un des brins du câble passant sur chacune desdites poulies passant sur une autre poulie fixée au dormant, ce système assurant l'équilibrage des efforts.According to yet another embodiment of this invention, the reclosing system of the opening is of the pneumatic type and it comprises a double-acting pneumatic cylinder whose useful stroke is half less than that necessary for closing the opening and a part or reference forming a lifting beam on which is mounted a pair of pulleys, this assembly, provided with a return means, such as a spring being guided along the rod of said jack and one of the strands of the cable passing over each of said pulleys passing over another pulley fixed to the frame, this system ensuring the balancing of forces.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description faite ci-après en référence aux dessins annexés qui en illustrent divers modes de réalisation donnés à titre d'exemples dépourvus de tout caractère limitatif. Sur les dessins :

  • les figures 1 et 2 sont des vues schématiques en élévation frontale représentant le système d'éjection de l'ouvrant du châssis de désenfumage selon l'invention respectivemement en position d'ouverture et en position fermée ;
  • les figures 3 à 5 sont des vues également schématiques en élévation frontale représentant le système d'amortissement et d'équilibrage du dormant respectivement en position fermée, en position d'ouverture partielle et en position d'ouverture totale ;
  • les figures 6 à 8 sont des vues partielles, schématiques en élévation latérale représentant un premier exemple de réalisation d'un système de refermeture de l'ouvrant, dans différentes configurations de fonctionnement respectivement : position fermée d'attente, position fin d'ouverture et position fin de fermeture et ;
  • les figures 9 à 11 sont également des vues partielles et schématiques en élévation latérale illustrant un autre exemple de réalisation d'un système de refermeture de l'ouvrant respectivement dans les configurations de fonctionnement suivantes : position début d'ouverture, position fin d'ouverture et position fermée d'attente.
Other characteristics and advantages of the present invention will emerge from the description given below with reference to the accompanying drawings which illustrate various embodiments given by way of examples without any limiting character. In the drawings:
  • Figures 1 and 2 are schematic views in front elevation showing the ejection system of the opening of the smoke extraction frame according to the invention respectively in the open position and in the closed position;
  • Figures 3 to 5 are also schematic views in front elevation showing the damping and balancing system of the frame respectively in the closed position, in the partially open position and in the fully open position;
  • Figures 6 to 8 are partial views, schematic in side elevation showing a first embodiment of a system for closing the opening, in different operating configurations respectively: closed waiting position, end of opening position and end of closing position and;
  • Figures 9 to 11 are also partial and schematic views in side elevation illustrating another embodiment of a system for closing the opening respectively in the following operating configurations: start of opening position, end of opening position and closed waiting position.

Sur les dessins et plus particulièrement sur les figures 1 et 2, on peut voir les deux parties principales du châssis de désenfumage objet de la présente invention d'une part le dormant 10 et d'autre part l'ouvrant 12. Sur la figure 1 on a représenté en traits interrompus le câble de traction 14 qui sous l'effet d'un vérin électrique ou pneumatique (non représenté) assure la commande de la fermeture de l'ouvrant.In the drawings and more particularly in FIGS. 1 and 2, one can see the two main parts of the smoke extraction chassis object of the present invention on the one hand the frame 10 and on the other hand the opening 12. In FIG. 1 there is shown in broken lines the traction cable 14 which under the effect of an electric or pneumatic cylinder (not shown) controls the closing of the opening.

Ainsi qu'on l'a précisé ci-dessus le dormant du châssis de désenfumage objet de la présente invention est conçu de façon à intégrer dans un volume réduit tous les systèmes qui sont nécessaires au fonctionnement du châssis, c'est-à-dire :

  • système de verrouillage ou d'accrochage du câble ;
  • système d'éjection de l'ouvrant pour assurer son ouverture rapide
  • système d'amortissement et d'équilibrage du mouvement d'ouverture de l'ouvrant et ;
  • système de refermeture de l'ouvrant.
As specified above, the frame of the smoke extraction chassis object of the present invention is designed so as to integrate into a reduced volume all the systems which are necessary for the operation of the chassis, that is to say :
  • cable locking or hanging system;
  • opening ejection system to ensure its opening fast
  • damping and balancing system of the opening movement of the opening and;
  • door closing system.

Le système de verrouillage de l'ouvrant sur le dormant peut être soit mécanique, soit à décondamnation mécanique ou électrique ou pneumatique.The locking system of the sash on the frame can be either mechanical, or mechanical or electrical or pneumatic unlocking.

Le système de verrouillage mécanique peut être réalisé à l'aide d'un verrou à commande par câble métallique relié à un poste de commande extérieur au châssis (par exemple poignée du type "tirer-lâcher". Un tel verrou schématisé en 16 sur la figure 1 est encastré dans la traverse haute du dormant 10 et il retient une gâche 18 qui est fixée sur la face interne de la traverse haute de l'ouvrant 12.The mechanical locking system can be produced using a lock controlled by a metal cable connected to a control station outside the chassis (for example a handle of the "pull-release" type. Such a lock shown diagrammatically at 16 on the FIG. 1 is embedded in the upper crossmember of the frame 10 and it retains a keeper 18 which is fixed on the internal face of the upper crossmember of the opening 12.

Selon un autre mode de réalisation d'un tel système de verrouillage mécanique, on utilise un câble dont la tension continue sous l'effet d'un treuil ou similaire assure le maintien de l'ouvrant en position fermée. Dans cet exemple de réalisation le câble est fixé sur la traverse haute de l'ouvrant 12 à la place de la gâche 18 et il est dévié latéralement à l'aide d'une poulie ou tube cintré, ce dispositif prenant alors la place du verrou 16.According to another embodiment of such a mechanical locking system, a cable is used, the tension of which continues under the effect of a winch or the like ensures that the door is kept in the closed position. In this exemplary embodiment, the cable is fixed to the upper cross member of the opening 12 in place of the keeper 18 and it is deflected laterally using a curved pulley or tube, this device then taking the place of the lock. 16.

Le système de verrouillage électrique est réalisé sous la forme d'un verrou électro-magnétique, encastré dans la traverse haute du dormant (au même emplacement que le verrou 16 décrit ci-dessus) et d'une gâche fixée sur la face interne de la traverse haute de l'ouvrant 12 de la même manière que la gâche 18 du système mécanique décrit ci-dessus. Les câbles électriques qui sont nécessaires à l'alimentation du verrou électro-magnétique sont positionnés à l'intérieur du profil du dormant 10.The electrical locking system is produced in the form of an electromagnetic lock, embedded in the upper cross member of the frame (at the same location as the lock 16 described above) and a strike fixed on the internal face of the upper cross member of the opening 12 in the same manner as the keeper 18 of the mechanical system described above. The electric cables which are necessary to supply the electromagnetic lock are positioned inside the profile of the frame 10.

Enfin le système de verrouillage pneumatique comporte un verrou à commande pneumatique qui, comme le verrou 16 du système de verrouillage mécanique décrit ci-dessus, est encastré dans la traverse haute du dormant 10, et une gâche fixée sur la face interne de la traverse haute de l'ouvrant 12 de la même manière que la gâche 18 décrite ci-dessus. Les canalisations qui sont nécessaires à l'alimentation pneumatique du verrou sont placées à l'intérieur du profil du dormant 10.Finally, the pneumatic locking system comprises a pneumatically controlled lock which, like the lock 16 of the mechanical locking system described above, is embedded in the upper cross member of the frame 10, and a strike fixed on the internal face of the upper cross member opening 12 in the same manner as the keeper 18 described above. The pipes which are necessary for the pneumatic supply of the lock are placed inside the profile of the frame 10.

Le système d'éjection assurant l'ouverture rapide de l'ouvrant 12 a été représenté sur les figures 1 et 2. Ce système d'éjection est conçu de façon à exercer en permanence une force d'ouverture sur cet ouvrant 10 de manière que lors du déverrouillage de l'ouvrant, ce dernier puisse pivoter et être actionné par l'éjecteur dans le sens de l'ouverture, cette ouverture étant achevée sous le propre poids de l'ouvrant. Le système d'éjection est constitué d'un levier en forme de L désigné dans son ensemble par la référence 20 et qui peut pivoter autour d'un axe 22 placé dans le montant vertical du dormant 10. Un ressort 24 positionné dans le montant vertical du dormant 10 exerce une traction permanente sur le petit bras 26 de ce levier 20 et cette force est retransmise sur l'ouvrant 12 par le grand bras de levier 28 du levier 20, ce qui assure une éjection, donc une ouverture rapide de l'ouvrant dès son déverrouillage.The ejection system ensuring the rapid opening of the opening 12 has been shown in FIGS. 1 and 2. This ejection system is designed so as to permanently exert an opening force on this opening 10 so that during unlocking of the opening, the latter can pivot and be actuated by the ejector in the direction of opening, this opening being completed under the own weight of the opening. The ejection system consists of an L-shaped lever designated as a whole by the reference 20 and which can pivot around an axis 22 placed in the vertical upright of the frame 10. A spring 24 positioned in the vertical upright of the frame 10 exerts a permanent traction on the small arm 26 of this lever 20 and this force is retransmitted on the opening 12 by the large lever arm 28 of the lever 20, which ensures an ejection, therefore a rapid opening of the opening as soon as it is unlocked.

L'effort de pivotement du grand bras de levier 28 peut être aussi produit par un ressort ou une combinaison de ressorts de compression ou de torsion ou par tout autre de ressort agissant sur le petit bras 26 de ce levier 20, et ce en fonction de l'encombrement et des efforts à transmettre.The pivoting force of the large lever arm 28 can also be produced by a spring or a combination of compression or torsion springs or by any other spring acting on the small arm 26 of this lever 20, and this as a function of size and efforts to transmit.

Le contact entre le grand bras de levier 28 et la surface interne de l'ouvrant 12 peut être réalisé par tout moyen approprié tel que notamment roulette, patin anti-friction etc...The contact between the large lever arm 28 and the internal surface of the door 12 can be made by any means suitable such as in particular roulette, anti-friction pad etc ...

On se réfère maintenant aux figures 3 à 5, sur lesquels on a représenté de façon schématique le système d'amortissement et d'équilibrage qui permet d'obtenir une descente régulière et sans à coup de l'ouvrant 12 après son déverrouillage et lors du fonctionnement du système d'éjection décrit ci-dessus.Referring now to Figures 3 to 5, in which there is shown schematically the damping and balancing system which allows to obtain a regular and smooth descent of the opening 12 after its unlocking and during operation of the ejection system described above.

Ce système est constitué essentiellement d'un vérin simple effet 30 à amortissement hydraulique ou pneumatique et d'un ressort 32. Le vérin 30 assure l'amortissement et le ressort 32 réalise l'équilibrage en permettant de compenser en partie le poids de l'ouvrant 10 et par conséquent d'en faciliter la refermeture ultérieure. A cet effet, l'action du ressort 32 est réalisée de manière qu'elle débute après la course d'éjection d'ouverture afin de ne pas entraver l'éjection de l'ouvrant au début de l'ouverture. Le cylindre du vérin 30 et l'une des extrémités du ressort 32 sont montés dans le dormant 10 par l'intermédiaire d'une plaque de fixation 34, et l'extrémité de la tige 36 du vérin 30 ainsi que l'autre extrémité du ressort 32 sont rendues solidaires de l'ouvrant 12 par l'intermédiaire d'une platine 38. Comme on peut le voir sur les figures 3 à 5 la fixation de cette extrémité du ressort 32 sur la platine 38 est réalisée de manière que cette extrémité de ressort puisse coulisser dans une lumière de forme oblongue 40 prévue dans la platine 38.This system essentially consists of a single-acting cylinder 30 with hydraulic or pneumatic damping and a spring 32. The cylinder 30 provides damping and the spring 32 balances by partially compensating for the weight of the opening 10 and therefore facilitating subsequent reclosure. To this end, the action of the spring 32 is carried out so that it begins after the opening ejection stroke so as not to hinder the ejection of the opening element at the start of the opening. The cylinder of the cylinder 30 and one of the ends of the spring 32 are mounted in the frame 10 by means of a fixing plate 34, and the end of the rod 36 of the cylinder 30 as well as the other end of the spring 32 are made integral with the opening 12 by means of a plate 38. As can be seen in FIGS. 3 to 5, the fixing of this end of the spring 32 on the plate 38 is carried out so that this end spring can slide in an oblong slot 40 provided in the plate 38.

En position fermée (figure 3), le vérin 30 et le ressort 32 sont au repos. En début d'ouverture, la faible vitesse de l'ouvrant 12 ne provoque qu'un faible amortissement dû au vérin 30 tandis que le ressort d'équilibrage 32 est inactif, son extrémité coulissant alors dans la lumière 40. Sur la figure 4 on a représenté la position de l'ouvrant 12 pour un angle d'ouverture de l'ordre de 30°, au moment où le ressort d'équilibrage 32 commence à exercer son action. La figure 5 représente l'ouvrant en fin d'ouverture complète.In the closed position (Figure 3), the cylinder 30 and the spring 32 are at rest. At the start of opening, the low speed of the opening 12 only causes low damping due to the jack 30 while the balancing spring 32 is inactive, its end then sliding in the slot 40. In FIG. represented the position of the opening 12 for a opening angle of the order of 30 °, when the balancing spring 32 begins to exert its action. Figure 5 shows the opening at the end of full opening.

Le châssis de désenfumage est muni d'un système assurant la refermeture de l'ouvrant. On a vu ci-dessus que ce système peut être du type mécanique : treuil à câble 14 (figure 1) assurant la remontée de l'ouvrant et dont le câble passe à l'intérieur du profil du dormant 10 jusqu'à la traverse haute en étant fixé sur l'ouvrant.The smoke extraction chassis is provided with a system ensuring the closing of the opening. We have seen above that this system can be of the mechanical type: cable winch 14 (FIG. 1) ensuring the ascent of the opening and the cable of which passes inside the profile of the frame 10 up to the top cross member by being fixed on the opening.

Selon la présente invention on peut aussi utiliser un système de refermeture électrique ou pneumatique.According to the present invention, it is also possible to use an electric or pneumatic reclosing system.

Le mode de réalisation de l'ouverture par verrou électromagnétique ou pneumatique sans système intégré de refermeture nécessite que le châssis soit alors accessible afin d'être refermé manuellement à l'aide d'une poignée fixée sur l'ouvrant.The embodiment of the opening by electromagnetic or pneumatic lock without integrated reclosing system requires that the chassis is then accessible in order to be closed manually using a handle fixed on the opening.

Les figures 6 à 7 des dessins annexés représentent de façon schématique un mode de réalisation d'un système de refermeture électrique de l'ouvrant 12, conforme à l'invention.Figures 6 to 7 of the accompanying drawings schematically show an embodiment of an electric reclosing system of the opening 12, according to the invention.

Ce système se présente sous la forme d'un vérin électrique qui comprend essentiellement une vis sans fin 42 entraînée par un groupe moto-réducteur 44 et le long de laquelle peut se déplacer un écrou 46, en prise sur cette vis 42 et permettant de déplacer un palonnier 48 comme on le décrira ci-après.This system is in the form of an electric actuator which essentially comprises an endless screw 42 driven by a geared motor group 44 and along which a nut 46 can move, engaged on this screw 42 and making it possible to move a spreader 48 as will be described below.

La course utile de la vis sans fin est égale à la moitié de la course de chacun des brins 14′, 14˝ du câble 14 assurant la liaison ouvrant-dormant et l'écrou 46 qui se déplace le long de la vis sans fin 42 lors de la rotation de cette dernière a pour fonction d'assurer la refermeture de l'ouvrant par action sur le palonnier 48 en prenant appui sur ce dernier comme on le décrira ci-après en référence aux figures 7 et 8. Le palonnier 48 est réalisé sous la forme d'une pièce ridige rappelée par un ressort 50, guidée en translation le long de la vis sans fin 42 et munie d'une poulie 52 sur laquelle s'enroule le câble de commande 14. Ce palonnier a donc pour fonction de conserver aux deux brins 14′, 14˝ du câble reliés à l'ouvrant 12 (non visible sur le dessin), une tension minimum afin que ce câble ne sorte pas des gorges des poulies de guidage 54, 54′, mais sans entraver l'effort d'ouverture des systèmes d'éjection décrits ci-dessus en référence aux figures 1 et 2. Ainsi qu'on l'a vu ci-dessus, cette tension minimale est obtenue par exemple par un ressort 50 ou par tout moyen équivalent, y compris un palier de frottement. Chacun des deux brins du câble provenant du palonnier est dirigé vers une poulie 70 qui a pour première fonction d'assurer une tension égale aux deux brins du câble, la deuxième fonction de cette poulie 70, qui est montée libre sur une glissière selon une course de 20 à 30 mm environ, étant d'exercer une traction sur un câble 72 , dont la valeur est égale, lors de la refermeture, à la résultante du poids de l'ouvrant diminué de l'équilibrage, le tout étant retransmis par les deux brins 14 et 14′. Ce câble 72 guidé par une gaine métallique flexible transmet cet effort à un dispositif de renvoi, situé dans la traverse haute dormante, assure le réarmement du verrou électro-magnétique, sans en entraver son fonctionnement de déclenchement d'ouverture.The useful travel of the worm is equal to half the travel of each of the strands 14 ′, 14˝ of the cable 14 ensuring the opening-standing link and the nut 46 which moves along the worm 42 when rotating the latter has the function of ensuring the reclosure of the opening by action on the lifter 48 by resting on the latter as will be described below with reference to FIGS. 7 and 8. The lifter 48 is produced in the form of '' a curtain piece recalled by a spring 50, guided in translation along the worm 42 and provided with a pulley 52 on which the control cable 14 is wound. This lifter therefore has the function of keeping the two strands 14 ′, 14˝ of the cable connected to the leaf 12 (not visible in the drawing), a minimum tension so that this cable does not leave the grooves of the guide pulleys 54, 54 ′, but without hampering the effort of opening of the ejection systems described above with reference to FIGS. 1 and 2. As seen above, this minimum tension is obtained for example by a spring 50 or by any equivalent means, including a friction bearing. Each of the two strands of the cable coming from the lifter is directed towards a pulley 70 which has the primary function of ensuring a tension equal to the two strands of the cable, the second function of this pulley 70, which is freely mounted on a slide according to a stroke from 20 to 30 mm approximately, being to exert a traction on a cable 72, the value of which is equal, upon reclosing, to the result of the weight of the opening leaf less balancing, the whole being retransmitted by the two strands 14 and 14 ′. This cable 72 guided by a flexible metal sheath transmits this force to a return device, located in the high sleeper cross member, ensures the resetting of the electromagnetic lock, without hampering its opening triggering operation.

Ce système est complété par deux butées de fin de course : l'une 56 actionnée par l'écrou 46 (figures 6 et 7), l'autre (non visible sur le dessin) placée dans le verrou électromagnétique. Ces deux butées permettent d'obtenir les informations nécessaires au système logique qui est chargé de gérer les déplacements de l'écrou 46 notamment.This system is completed by two end-of-travel stops: one 56 actuated by the nut 46 (Figures 6 and 7), the other (not visible in the drawing) placed in the electromagnetic lock. These two stops make it possible to obtain the information necessary for the logic system which is responsible for managing the movements of the nut 46 in particular.

On décrira maintenant le cycle de fonctionnement de ce dispositif. Ce dernier comporte les phases suivantes :

  • position fermée d'attente illustrée par la figure 6 ;
  • ordre d'ouverture de l'ouvrant donné au verrou électromagnétique;
  • position fin d'ouverture illustrée par la figure 7 ;
  • ordre de refermeture de l'ouvrant avec réarmement automatique du verrou électro-magnétique.
  • position fin de fermeture de l'ouvrant illustrée par la figure 8 et ;
  • retour en position fermée d'attente illustrée par la figure 6.
We will now describe the operating cycle of this device. This includes the following phases:
  • closed standby position illustrated in Figure 6;
  • opening order given to the electromagnetic lock;
  • end of opening position illustrated in FIG. 7;
  • opening order to close with automatic resetting of the electromagnetic lock.
  • end position of closing the opening illustrated in Figure 8 and;
  • return to the closed waiting position illustrated in FIG. 6.

L'examen des figures 6 à 8 montre que le principe fondamental de fonctionnement de ce dispositif consiste à rendre l'ouvrant 12 libre lors de son ouverture celle-ci devant s'effectuer en un laps de temps très court inférieur à 30 secondes. Il est donc nécessaire que la vitesse d'ouverture de l'ouvrant ne soit pas assujettie à la vitesse de déplacement de l'écrou 46 du vérin électrique décrit ci-dessus, ceci notamment pour des raisons de puissance électrique requise et de volume d'encombrement de l'ensemble moto-réducteur 44 entraînant le vérin électrique.Examination of FIGS. 6 to 8 shows that the fundamental operating principle of this device consists in making the opening 12 free when it is opened, this having to be carried out in a very short period of time less than 30 seconds. It is therefore necessary that the opening speed of the opening is not subject to the speed of movement of the nut 46 of the electric jack described above, this in particular for reasons of required electric power and volume of size of the gear motor assembly 44 driving the electric actuator.

La figure 6 représente le dispositif en position fermée d'attente. Dans cette position le palonnier 48, sous l'action de son ressort 50 maintient sous tension les deux brins 14′ et 14˝ du câble de commande et la butée 56 est sollicitée par l'écrou 46 qui se trouve en position de fin de course.Figure 6 shows the device in the closed standby position. In this position the lifter 48, under the action of its spring 50 keeps the two strands 14 ′ and 14˝ of the control cable under tension and the stop 56 is biased by the nut 46 which is in the end of travel position .

La figure 7 représente le dispositif en position fin d'ouverture. On voit que le palonnier s'est déplacé le long de la vis sans fin 42 jusqu'à venir en butée contre l'écrou 46, toujours en position de fin de course. Ce déplacement du palonnier a été réalisé sous l'effet du fonctionnement du système d'éjection décrit ci-dessus en référence aux figures 1 et 2.Figure 7 shows the device in the open end position. We see that the lifter has moved along the worm 42 until it comes into abutment against the nut 46, still in the end position. This displacement of the spreader was made under the effect of the operation of the ejection system described above with reference to Figures 1 and 2.

La figure 8 représente le dispositif en position fin de fermeture. Le moto-réducteur 44 a entraîné en rotation la vis sans fin 42 le long de laquelle s'est déplacé l'écrou 46 provoquant le déplacement (vers la gauche en regardant le dessin) du palonnier 48 qui, par l'intermédiaire de sa paire de poulies 52 et 52′ exerce une traction sur les deux brins 14′ et 14˝ du câble de commande provoquant la refermeture de l'ouvrant, le réarmement du verrou et donc le verrouillage automatique de la gâche 18 par le verrou 16 (figures 1 et 2).Figure 8 shows the device in the closed end position. The gear motor 44 has rotated the endless screw 42 along which moved the nut 46 causing the displacement (to the left by looking at the drawing) of the lifter 48 which, by means of its pair pulleys 52 and 52 ′ exerts traction on the two strands 14 ′ and 14˝ of the control cable causing the opening of the opening, resetting of the lock and therefore the automatic locking of the keeper 18 by the lock 16 (Figures 1 and 2).

Le système assurant la refermeture de l'ouvrant peut être également, selon une variante de la présente invention, du type pneumatique. Cette variante est représentée sur les figures 9 à 11 dans diverses positions de fonctionnement.The system ensuring the closing of the opening can also be, according to a variant of the present invention, of the pneumatic type. This variant is shown in Figures 9 to 11 in various operating positions.

Un tel système de refermeture pneumatique selon la présente invention comporte essentiellement un vérin pneumatique à double effet 58. La course de ce vérin est choisie à une valeur moitié moindre de la course qui est nécessaire à la refermeture de l'ouvrant. Ce choix découle de considération d'encombrement en largeur. Le système comporte par ailleurs une pièce formant renvoi 62 sur laquelle sont montées deux poulies 64, 64′ sur lesquelles s'enroulent les brins respectifs 14′ et 14˝ du câble de commande 14. L'ensemble renvoi 62-poulies 64, 64′ est monté de manière à pouvoir coulisser le long de la tige 60 du vérin 58, cette tige assurant le guidage dudit ensemble. On prévoit un ressort de rappel 66 dont l'une des extrémités est fixée sur le renvoi 62 et dont la fonction est identique à celle obtenue par le ressort 50 (figures 6, 7, 8) du vérin électrique c'est-à-dire assurer une tension minimale en ce qui concerne les brins de câble 14′ et 14˝. L'ensemble renvoi 62-poulies 64, 64' permet de restituer aux brins 14' et 14" du câble de commande 14, assurant la liaison ouvrant 12, dormant 10, comme on l'a déjà mentionné ci-dessus, toute la course nécessaire. En effet, cet ensemble assure le doublement de cette course, étant donné que chacun des brins 14′, 14˝ du câble 14 passe sur une poulie fixe 68 qui est fixée sur le dormant 10 faisant office de palonnier. Ce montage permet d'équilibrer les efforts en cas de nécessité.Such a pneumatic reclosing system according to the present invention essentially comprises a double-acting pneumatic cylinder 58. The stroke of this cylinder is chosen at a value less than half the stroke which is necessary for the reclosing of the opening. This choice follows from consideration of overall dimensions. The system also comprises a part forming a return 62 on which are mounted two pulleys 64, 64 ′ on which the respective strands 14 ′ and 14˝ of the control cable are wound 14. The return assembly 62-pulleys 64, 64 ′ is mounted so as to be able to slide along the rod 60 of the jack 58, this rod ensuring the guidance of said assembly. A return spring 66 is provided, one end of which is fixed to the reference 62 and the function of which is identical to that obtained by the spring 50 (FIGS. 6, 7, 8) of the electric actuator, that is to say ensure minimum tension with regard to strands of cable 14 ′ and 14˝. The return assembly 62-pulleys 64, 64 'makes it possible to restore the strands 14' and 14 "of the control cable 14, ensuring the opening link 12, dormant 10, as has already been mentioned above, the entire stroke Indeed, this assembly ensures the doubling of this stroke, given that each of the strands 14 ′, 14˝ of the cable 14 passes over a fixed pulley 68 which is fixed on the frame 10 acting as a lifting beam. '' balance efforts when necessary.

Bien entendu, le cadre du dormant 10 comporte les poulies de renvoi 54, 54′ qui sont nécessaires au guidage des brins 14′, 14˝ du câble 14 de commande de la refermeture de l'ouvrant 12. On retrouve la même disposition que celle qui a été décrite ci-dessus en référence aux figures 6 à 8.Of course, the frame of the frame 10 includes the pulleys 54, 54 ′ which are necessary for guiding the strands 14 ′, 14˝ of the cable 14 for controlling the reclosing of the opening 12. We find the same arrangement as that which has been described above with reference to FIGS. 6 to 8.

Le cycle de fonctionnement de ce système de fermeture pneumatique de l'ouvrant diffère du cycle de fonctionnement décrit ci-dessus en référence au système de fermeture par vérin électrique (figures 6 à 8). Les différentes phases de ce cycle pneumatique sont les suivantes :

  • position fermée d'attente illustrée par la figure 9 ;
  • ordre d'ouverture de l'ouvrant donné simultanément au verrou pneumatique et simultanément au vérin pneumatique (cette phase fugitive est illustrée par la figure 10) ;
  • position de fin d'ouverture illustrée par la figure 11 ;
  • ordre de refermeture de l'ouvrant donné au vérin pneumatique et réarmement automatique du verrou pneumatique et ;
  • retour en position fermée d'attente illustrée par la figure 9.
The operating cycle of this pneumatic closing system of the opening differs from the operating cycle described above with reference to the closing system by electric actuator (Figures 6 to 8). The different phases of this pneumatic cycle are as follows:
  • closed standby position illustrated in Figure 9;
  • opening order given simultaneously to the pneumatic lock and simultaneously to the pneumatic cylinder (this fleeting phase is illustrated in FIG. 10);
  • end of opening position illustrated in FIG. 11;
  • opening order given to the pneumatic cylinder and automatic resetting of the pneumatic lock;
  • return to the closed standby position illustrated in FIG. 9.

L'examen des figures 9 à 11 montre que le principe fondamental de fonctionnement de ce dispositif conforme à l'invention consiste à rendre la tige de vérin libre vis-à-vis de l'ensemble renvoi 62-poulies 64-64′, la vitesse d'ouverture de la tige 60 du vérin pneumatique étant supérieure à la vitesse de déplacement de l'ensemble renvoi 62-poulies 64-64′, générée par l'ouverture de l'ouvrant 12. Il est donc nécessaire, pour éviter que les brins 14′ et 14˝ du câble de commande se détendent et de ce fait, puissent sortir des gorges des poulies 64, 64′ et 68, que les vitesses de déplacement d'ouverture de l'ensemble renvoi 62-poulies 64, 64′ ne soient pas assujetties à la vitesse de la tige 60 du vérin pneumatique.Examination of FIGS. 9 to 11 shows that the fundamental operating principle of this device conforms to the invention consists in making the cylinder rod free vis-à-vis the 62-pulley return assembly 64-64 ′, the opening speed of the rod 60 of the pneumatic cylinder being greater than the speed of movement of the 'return assembly 62-pulleys 64-64 ′, generated by the opening of the opening 12. It is therefore necessary, to avoid that the strands 14 ′ and 14˝ of the control cable relax and therefore can come out grooves of the pulleys 64, 64 ′ and 68, that the opening displacement speeds of the return assembly 62-pulleys 64, 64 ′ are not subject to the speed of the rod 60 of the pneumatic cylinder.

La figure 9 représente la position des différents éléments de ce système pneumatique lorsque l'ouvrant est en position fermée d'attente. Dans cette position le vérin 58 est au repos et l'ensemble palonnier 62-poulies 64, 64′ est rappelé contre le vérin à l'aide du ressort 68.FIG. 9 represents the position of the various elements of this pneumatic system when the opening is in the closed waiting position. In this position, the jack 58 is at rest and the lifter assembly 62-pulleys 64, 64 ′ is biased against the jack using the spring 68.

Lors de la mise sous pression d'ouverture du vérin 58 (qui provoque parallèlement le déverrouillage du système de verrou maintenant l'ouvrant sur le dormant) la tige 60 du vérin 58 étant libre se déplace plus rapidement que l'ensemble palonnier 62-poulies 64, 64′ qui est entraîné par l'ouverture de l'ouvrant. Cet ensemble est freiné par le ressort de traction 66 ou par tout autre dispositif générant une tension minimale dans les brins 14′ et 14˝ du câble de commande. Cette position de début d'ouverture est représentée sur la figure 10.When the actuator 58 is pressurized to open (which in parallel causes the unlocking of the lock system holding the opening on the frame), the rod 60 of the actuator 58 being free moves more quickly than the lifter assembly 62-pulleys 64, 64 ′ which is driven by the opening of the opening. This assembly is braked by the tension spring 66 or by any other device generating a minimum tension in the strands 14 ′ and 14˝ of the control cable. This opening start position is shown in Figure 10.

La figure 11 représente la position en fin d'ouverture. Dans cette position l'ensemble palonnier 62-poulies 64, 64′ a été entraîné jusqu'à venir en butée sur l'extrémité de la tige 60 du vérin laquelle est en position fin de course d'ouverture.Figure 11 shows the position at the end of opening. In this position, the lifter assembly 62-pulleys 64, 64 ′ has been driven until it comes into abutment on the end of the rod 60 of the jack which is in the end of opening stroke position.

C'est l'action du vérin 58, à partir de la position illustrée par la figure 11 qui provoque la refermeture de l'ouvrant, la tige 60 du vérin ramenant en butée de fermeture (c'est-à-dire vers la gauche en regardant la figure 11) l'ensemble palonnier 62-poulies 64, 64′ exerçant ainsi une traction sur le câble 14. On revient ainsi à la position fermée d'attente illustrée par la figure 9.It is the action of the jack 58, from the position illustrated in FIG. 11 which causes the opening of the opening, the rod 60 of the jack bringing in the closing stop (that is to say to the left by looking at FIG. 11) the spreader assembly 62-pulleys 64, 64 ′ thus exerting traction on the cable 14. This thus returns to the closed standby position illustrated in FIG. 9.

Parmi les avantages apportés par le châssis de désenfumage objet de la présente invention et décrit ci-dessus, on peut mentionner notamment les suivants :

  • intégration sous un volume réduit de tous les systèmes de commande mécanique, électrique ou pneumatique, ce qui améliore l'esthétique et la fiabilité ;
  • possibilité d'obtenir des temps d'ouverture très réduits (inférieurs à 30 secondes) pour des ouvrants de grandes dimensions (pouvant atteindre notamment jusqu'à 1600 mm de hauteur), cette performance étant particulièrement difficile à atteindre par les châssis de désenfumage à manoeuvre électrique selon la technique antérieure ;
  • le fait que le dormant fait fonction d'habillage pour tous les systèmes de commande d'ouverture et de refermeture de l'ouvrant, il n'existe aucune saillie sur le profilé, ce qui améliore l'esthétique et annule les suggestions de réalisation de la manoeuvre selon la technique antérieure, en fonction de l'environnement immédiat du châssis ;
  • le châssis de désenfumage selon l'invention peut être mis en place directement à la place d'une partie ouvrante soit directement lors de la construction soit lors d'une rénovation, ce montage pouvant être effectué indifféremment de l'intérieur ou de l'extérieur d'un bâtiment selon une gamme de profils d'adaptation répondant à de nombreux cas de fixations des châssis.
Among the advantages provided by the smoke extraction chassis object of the present invention and described above, the following may be mentioned in particular:
  • integration in a reduced volume of all mechanical, electrical or pneumatic control systems, which improves aesthetics and reliability;
  • possibility of obtaining very reduced opening times (less than 30 seconds) for large openings (up to 1600 mm in height in particular), this performance being particularly difficult to achieve by the maneuverable smoke extraction frames electric according to the prior art;
  • the fact that the frame acts as a covering for all the opening and closing control systems of the opening, there is no projection on the profile, which improves the aesthetics and cancels the suggestions for making the operation according to the prior art, depending on the immediate environment of the chassis;
  • the smoke extraction chassis according to the invention can be installed directly in place of an opening part either directly during construction or during a renovation, this assembly being able to be carried out either from the inside or from the outside of a building according to a range of adaptation profiles responding to many cases of chassis attachments.

Claims (9)

  1. Smoke escape device for outer walls of buildings, comprising a frame unit in two principal parts, that is a fixed frame (10) and an opening leaf (12), the latter being provided with means assuring quick opening, this device being characterized in that the control system (14), opening system (20), realized by means of an L-shaped lever pivoting about an axis (22) and fixed in the upright member of the fixed frame (10), the shorter arm (26) of this lever being provided with a restoring means such as a tension spring (24), or any other type of spring enabling the same functions to be achieved, and the end of the longer arm (28) of said lever being capable of bearing against the opening leaf by any suitable means, such as, notably, a roller, anti-friction skid or the like, the damping and balancing systems (30, 32), constructed from a single-acting jack (30) and a spring (32), said jack having its cylinder mounted on a component (34) fixed in the structure of the fixed frame (10) and its rod (36) attached to a plate (38) which is fixed in the opening leaf (12) and said spring (32) having the one of its ends attached to said component (34) and the other mounted in such a manner that it is able to slide in an aperture (40) provided in said plate (38), and the reclosing systems (42, 44, 48; 58, 62) for the opening leaf are integrated into the fixed frame of the frame unit, the latter serving for housing all these systems.
  2. Smoke escape device according to Claim 1, characterized in that the locking system for the opening leaf (12) is of the mechanically operated type, with maintenance of the closed position by the continuous tension of a cable (14) fixed to the upper cross-member of the opening leaf (12), the path of this cable, which is operated by a winch outside the frame unit, leading through the inside of the profile of the fixed frame.
  3. Smoke escape device according to Claim 1, characterized in that the locking system for the opening leaf is of the mechanically operated type with maintenance of the closed position by a bolt operated by a cable connected to a control means outside the frame unit, said bolt (16) being mounted in the upper cross-member of the fixed frame and holding a staple (18) fixed to the inner face of the upper cross-member of the opening leaf.
  4. Smoke escape device according to Claim 1, characterized in that the locking system for the opening leaf (12) is of the electrically operated type with maintenance of the closed position by an electromagnetic bolt fixed in the upper cross-member of the fixed frame (10) and a staple fixed on the inner face of the upper cross-member of the opening leaf, the electric supply cables for the bolt being positioned inside the profile of the fixed frame.
  5. Smoke escape device according to Claim 1, characterized in that the locking system for the opening leaf (12) is of the pneumatically operated type with maintenance of the closed position by a bolt mounted in the upper cross-member of the fixed frame (10) and a staple fixed to the inner face of the upper cross-member of the opening leaf, the pneumatic supply pipes for the operating system of the bolt being positioned inside the profile of the fixed frame.
  6. Smoke escape device according to Claim 1, characterized in that the reclosing system for the opening leaf (12) is of the mechanical type with cable and winch, the cable leading through the inside of the profile of the fixed frame (10).
  7. Smoke escape device according to Claim 1, characterized in that the reclosing system for the opening leaf (12) is of the electrical type and comprises an electrical jack constituted of a worm screw (42) driven by a motor-reduction gear unit (44) through an effective stroke equal to one-half of each of the sides (14', 14'') of the cable (14) which provides the connection between opening leaf and fixed frame, of a compensating bar (48) restored by a tension spring (50) capable of travelling along said worm screw and on which is mounted a pair of sheaves (52, 52'), around which are led the sides (14', 14'') of said cable, and of a nut (46), in engagement on said worm screw and acting upon said compensating bar to cause the reclosing of the opening leaf.
  8. Smoke escape device according to Claim 7, characterized in that, during the reclosing of the opening leaf, the tension of the sides (14', 14'') of the cable (14), which is applied to the balancing sheave (70) mounted on a slider, pulls on a cable (72) inside a flexible sheath, said cable, acting upon a return device, assuring the automatic reloading of an electromagnetic bolt.
  9. Smoke escape device according to Claim 1, characterized in that the reclosing system for the opening leaf is of the pneumatic type and it comprises a double-acting pneumatic jack (58), the stroke of which is less by one-half than that necessary for the reclosing of the opening leaf, and a pair of sheaves (64, 64') mounted on a component forming a return (62), provided with a restoring means (66), the assembly constituted of said return (62) and said sheaves (64, 64') being guided along the rod (60) of said jack (58) and the one of the sides (14', 14'') of the cable which passes over each of said sheaves passing over another sheave (68) fixed to the fixed frame.
EP91402425A 1990-09-17 1991-09-12 Exhaust system for building façades Expired - Lifetime EP0477068B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9011456 1990-09-17
FR9011456A FR2666839B1 (en) 1990-09-17 1990-09-17 SMOKE EXHAUST SYSTEM FOR BUILDING FACADES.

Publications (3)

Publication Number Publication Date
EP0477068A2 EP0477068A2 (en) 1992-03-25
EP0477068A3 EP0477068A3 (en) 1992-07-01
EP0477068B1 true EP0477068B1 (en) 1994-11-30

Family

ID=9400383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402425A Expired - Lifetime EP0477068B1 (en) 1990-09-17 1991-09-12 Exhaust system for building façades

Country Status (4)

Country Link
EP (1) EP0477068B1 (en)
DE (2) DE477068T1 (en)
ES (1) ES2031437T1 (en)
FR (1) FR2666839B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPM530294A0 (en) * 1994-04-27 1994-05-19 F F Seeley Nominees Pty Ltd Fan closure means
DK2397A (en) * 1997-01-09 1998-07-10 Skov As Stable ventilation systems with air inlet valves or such valves for such systems respectively
SK8442Y1 (en) * 2018-04-30 2019-05-06 Imos Systemair A S Adjustable regulator of flow fluid, particularly for regulating airflow

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304753A1 (en) * 1984-06-28 1989-03-01 Colt International Holdings A.G. Improvements relating to ventilating
EP0430721A2 (en) * 1989-12-01 1991-06-05 Colt International Limited Ventilators

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3873728T2 (en) * 1988-01-09 1993-02-18 Colt Int Holdings FAN.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0304753A1 (en) * 1984-06-28 1989-03-01 Colt International Holdings A.G. Improvements relating to ventilating
EP0430721A2 (en) * 1989-12-01 1991-06-05 Colt International Limited Ventilators

Also Published As

Publication number Publication date
DE69105429T2 (en) 1995-04-06
FR2666839B1 (en) 1993-04-16
EP0477068A2 (en) 1992-03-25
FR2666839A1 (en) 1992-03-20
ES2031437T1 (en) 1992-12-16
DE69105429D1 (en) 1995-01-12
DE477068T1 (en) 1992-10-15
EP0477068A3 (en) 1992-07-01

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