EP0591050A1 - Roller shutter with flexible screen resisting wind pressure - Google Patents

Roller shutter with flexible screen resisting wind pressure Download PDF

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Publication number
EP0591050A1
EP0591050A1 EP93402378A EP93402378A EP0591050A1 EP 0591050 A1 EP0591050 A1 EP 0591050A1 EP 93402378 A EP93402378 A EP 93402378A EP 93402378 A EP93402378 A EP 93402378A EP 0591050 A1 EP0591050 A1 EP 0591050A1
Authority
EP
European Patent Office
Prior art keywords
curtain
carriages
door
door according
constituted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93402378A
Other languages
German (de)
French (fr)
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EP0591050B1 (en
Inventor
Bernard Kraeutler
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.)
Nergeco SA
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Nergeco SA
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Filing date
Publication date
Application filed by Nergeco SA filed Critical Nergeco SA
Publication of EP0591050A1 publication Critical patent/EP0591050A1/en
Application granted granted Critical
Publication of EP0591050B1 publication Critical patent/EP0591050B1/en
Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
    • E06B9/0692—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising flexible sheets as closing screen
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B9/581—Means to prevent or induce disengagement of shutter from side rails
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • E06B2009/135—Horizontal shutter reinforcements
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E06B2009/585—Emergency release to prevent damage of shutter or guiding device

Definitions

  • the present invention relates to a handling door for the passage of vehicles and machines comprising a flexible curtain resistant to the wind and having its opposite edges held in guides or slides.
  • the opening can be carried out by vertical lifting, either by winding around a tree, or by folding in accordion.
  • Second opening can be done by horizontal translation of the curtain consisting of one or two parts.
  • these types include a flexible curtain and one (possibly in the case of a horizontally translatable door) or two vertical or horizontal slides (depending on the type of opening).
  • the flexible curtain comprises one or more reinforcing bars intended to stiffen the curtain.
  • these bars or at least some of them, penetrate the slides in order to prevent the curtain from coming out of its plane when it is subjected to a thrust.
  • the present invention more particularly relates to a door comprising a flexible curtain, in particular but not exclusively of large dimensions, the edges of which are guided in slides, the door being designed to withstand high pressures due to high winds, without get out of its slides, but having security in the event of a punctual impact against the door, for example the impact of a vehicle, to avoid tearing the door or deformation of the slides.
  • US Patent 2,839,135 discloses a roll-up door, consisting of rigid slats hinged to each other. At least some of the slats have at their ends a carriage which slides in slides without being able to leave it. This door is intended to withstand high winds. If the door receives a punctual shock, for example the shock of a truck, the slat which receives the shock will be bent or torn, or will deform the slide. In all cases, a repair is necessary, with a permanent immobilization of the door.
  • a punctual shock for example the shock of a truck
  • the present invention relates to a door comprising a flexible curtain, the edges of which are guided in slides, and held in these slides by retaining carriages, characterized in that it comprises means of connection and distribution of the stresses exerted on the edges by the carriages, when the door is subjected to efforts.
  • the distribution means can be elements of transverse resistance constituted by stiffening bars of the curtain, retaining carriages being fixed at the two ends of at least certain bars, the bars being able to be connected to one another by flexible straps advantageously attached to the curtain.
  • the distribution means can also be constituted by flexible straps, fixed to the curtain transversely, retaining carriages being fixed at the two ends of at least certain straps.
  • the distribution means can also be constituted by flexible straps fixed to the curtain along its edges, the retaining carriages being fixed at intervals along such straps.
  • the distribution means and the carriages are connected by means of a mechanical connection adapted to come apart under the effect of a determined force.
  • a safety element capable of breaking in the event of a determined force, is interposed between each retaining carriage, and the means for distributing the forces.
  • This safety element can be a removable or breakable element, such as a shearable pin, or brittle rivets or screws, easy to replace after a break, without any disassembly.
  • German patent DE-40 07 280 discloses a roll-up door in which the load bar is extended at its ends by sliding parts which penetrate into side rails.
  • the sliding parts are connected to the load bar by means of brittle parts adapted to break in the event of an impact against the load bar.
  • the brittle part For fixing the sliding part, on the load bar, the brittle part is extended by a connecting element which is bolted to the load bar.
  • a connecting element which is bolted to the load bar.
  • a pin as a connecting element has the advantage that its mechanical resistance can be determined with precision. As a result, the pins could be machined such that they resist strong winds and break under the effect of a punctual push of a certain force. In addition, it is possible to change the pin without using any specific tool. In addition to a gain in reliability is added a gain in downtime of the door.
  • the curtain rails prevent wind from entering directly through the guided sides of the door; moreover, it would be easy to adapt a sealing element on the slides on at least one side of the curtain, making it possible to effectively cut the wind.
  • these slides would constitute the uprights of the structure supporting the cross member in which the winding or folding mechanism is mounted.
  • FIGS. 1 and 2 relate to a handling door with a flexible curtain with vertical lifting, but the present invention is just as easily adaptable to a handling door which can be translated horizontally. This embodiment cannot therefore be limiting.
  • a flexible curtain lifting door with vertical lift has two vertical lateral uprights forming slides on which is generally mounted a crosspiece forming a lintel.
  • FIGS. 1 and 2 one of the two uprights of a door with vertical lift is shown which serves as a guide rail 1 for the flexible curtain stiffened by reinforcing bars 2 housed in the curtain 101 and whose ends penetrate into said slide 1.
  • This last slide 1 is constituted by a vertical U-shaped profile having two returns having the function of stiffening the structure of the upright.
  • the returns 1a also U-shaped, have two facing walls 11 which favor the guiding of the end of the rebar 2 in the slide 1.
  • a reinforcing plate 3 is welded, riveted or screwed in order to guarantee a solid base for a retaining rail 4 on which strong forces are exerted. tensions.
  • the retaining rail 4 is constituted by two symmetrical sections with respect to the cutting line II (see FIG. 1), and mounted on the reinforcement plate 3 so that it is easily removable for accessing the interior for example by means of screws and nuts 4b.
  • Said retaining rail 4 forming a slide has a longitudinal slot and two front walls 4a of each side of the slot on which rolls a carriage 5 provided with two rollers 5a mounted on an axis 5b.
  • the retaining rail 4 has two returns 41 facing each other and located on either side of the longitudinal slot. The function of these returns 41 is to limit the freedom of movement of the carriage 5 inside the retaining rail 4, but also to stiffen the structure of the retaining rail 4.
  • Element 7a of articulation 7 has a Y-shaped section along the line in section II in which the element 7b of the articulation 7 is inserted.
  • the two elements 7a, 7b have coaxial or aligned bores in which is inserted a pin 71 constituting the axis of the articulation 7.
  • the pin 71 is adapted to break when a predetermined force is applied to the reinforcing bar 32 perpendicular to the curtain so that said reinforcing bar 2 is detached from its carriage 5.
  • the pin 71 is machined so as to withstand strong winds because the force is distributed over the entire curtain and so as to break under the effect of a punctual push of a certain force which is only exerted on a single bar or at most two.
  • the pin 71 is provided with a pin 71a in order to avoid any accidental withdrawal of the pin 71.
  • the advantage of a removable brittle pin as a connecting element is on two levels. First, it is easier to determine the breaking point (i.e. the mechanical strength). Secondly, the replacement of the pin does not require the intervention of a specialized technician, therefore the downtime of the door is reduced.
  • the rebar 2 is of hollow construction and has sufficient overall flexibility to allow it to exit from at least one slide 1 under the effect of a collision in the flexible curtain.
  • Said reinforcing bar 2 is here a tube and receives at each of its ends a rod 8 secured to the element 7a of the articulation 7.
  • Figure 1 is shown in section an example of a device for adjusting the sinking of the rod 8 inside the bar, that is to say a means for adjusting the length of the bar and adjusting its tension. in the presence of wind.
  • the rod 8 is provided at its free end, opposite the articulation 7, with a head 8a of larger diameter, thus having a shoulder 8b by which this head can be retained.
  • a sleeve 9 is housed in the end of the bar 2, and can be held there by pins 9a indicated diagrammatically.
  • the diameter of the head 8a is provided to slide freely inside the sleeve 9.
  • the interior surface of the sleeve 9 is threaded and a sleeve 10, externally threaded can be screwed into the sleeve.
  • the internal diameter of the sleeve 10 allows the rod 8 to be freely received, but not the head 8a, the step 8b of which is applied against the end edge of the sleeve.
  • a lock nut 10a makes it possible to block the socket in the chosen position, that is to say allows the distance between the end of the bar 2 and the axis of the articulation 7 to be chosen.
  • FIG. 3 Another embodiment of the invention is shown in Figures 3 and 4 relating to a rolling curtain.
  • the flexible curtain 101 is provided at different heights, to ensure transverse resistance between the sides, with a polyester strap 102.
  • This strap is placed inside a sheath made up of two plastic sheets 103a, 103b a little more as wide as the strap and welded at their edges, the assembly being welded or glued to the flexible curtain 101.
  • a metallic connecting piece is constituted in this example by two blades or rigid plates 104a, 104b, for example made of steel, arranged on both sides of the strap and tightened against the latter by screws and nuts 105a, 105b.
  • the blades are cut with an opening 106 provided for the passage of the axis 107 of the rollers 108.
  • Another example of slide 109 is shown in section in FIG. 3.
  • the arrangement which has just been described makes it possible to regularly wind the curtain which is thus completely flexible, and the steel blades can be placed on the edge of the winding shaft of the curtain, and ensure, during the unwinding, the correct placement of the rollers in the slides.
  • the gaps between the different straps distributed over the height of the curtain may not be equal, if necessary, to prevent the rollers from overlapping, hampering the winding.
  • the force exerted by the wind on the curtain is taken up over the entire width by the straps 102, and is thus transmitted to the slides by the rollers.
  • interpose safety means between the retaining rollers and the stress distribution means to separate the rollers from said distribution means, in the event of excessive or abnormal force, for example concentrated on a single strap, for example by the impact of a vehicle.
  • these means can be produced by the use of screws which can be sheared at a certain shearing force, for example made of plastic, for the clamping screws 105 which hold the steel blades 104 together. This means is simple and in the event of a breakage, the screws can be replaced immediately without the intervention of any specialist.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

Warehouse door which opens and closes rapidly to allow vehicles to pass, comprising a roll-up or folding flexible shutter (101), each of the edges of the shutter being guided in a slideway (1) and being held therein by retention carriages (5) which are guided by rails (4) housed in the slideways, the carriages being unable to come off the said rails, characterised in that the door comprises means (6, 7, 8, 104) for linking the shutter and the carriages together and means (2, 102) for distributing the stresses exerted on the edges of the shutter by the carriages when the door is subjected to any strains. <IMAGE>

Description

La présente invention a pour objet une porte de manutention pour le passage de véhicules et d'engins comportant un rideau souple résistant au vent et ayant ses bords opposés maintenus dans des guides ou glissières.The present invention relates to a handling door for the passage of vehicles and machines comprising a flexible curtain resistant to the wind and having its opposite edges held in guides or slides.

Il existe plusieurs types d'ouvertures de portes à rideau souple que l'on peut classer en deux catégories. Premièrement, l'ouverture peut s'effectuer par relevage vertical, soit par enroulement autour d'un arbre, soit par pliage en accordéon. Deuxièmenent l'ouverture peut s'effectuer par translation horizontale du rideau constitué d'une ou de deux parties.There are several types of flexible curtain door openings that can be classified into two categories. Firstly, the opening can be carried out by vertical lifting, either by winding around a tree, or by folding in accordion. Second opening can be done by horizontal translation of the curtain consisting of one or two parts.

Dans tous les cas, ces types comportent un rideau souple et une (éventuellement dans le cas d'une porte translatable horizontalement) ou deux glissières verticales ou horizontales (suivant le type d'ouverture).In all cases, these types include a flexible curtain and one (possibly in the case of a horizontally translatable door) or two vertical or horizontal slides (depending on the type of opening).

Dans certains de ces types de porte, le rideau souple comporte une ou plusieurs barres d'armature destinées à rigidifier le rideau. Généralement ces barres, ou au moins certaines d'entre elles, pénêtrent dans les glissières afin d'empêcher le rideau de sortir de son plan lorsqu'il est soumis à une poussée. Or, il peut arriver qu'un véhicule heurte accidentellement le rideau. Cela peut déchirer le rideau, ou déformer une ou plusieurs barres qui devront alors être remplacées. Il peut s'ensuivre une immobilisation de la porte.In some of these types of door, the flexible curtain comprises one or more reinforcing bars intended to stiffen the curtain. Generally these bars, or at least some of them, penetrate the slides in order to prevent the curtain from coming out of its plane when it is subjected to a thrust. However, it may happen that a vehicle accidentally hits the curtain. This can tear the curtain, or distort one or more bars which must then be replaced. This can result in the immobilization of the door.

La présente invention a plus particulièrement pour objet une porte comportant un rideau souple, en particulier mais non exclusivement de grandes dimensions, dont les bords sont guidés dans des glissières, la porte étant prévue pour résister à des pressions élevées dues à de grands vents, sans sortir de ses glissières, mais présentant une sécurité en cas de choc ponctuel contre la porte, par exemple le choc d'un véhicule, pour éviter la déchirure de la porte ou la déformation des glissières.The present invention more particularly relates to a door comprising a flexible curtain, in particular but not exclusively of large dimensions, the edges of which are guided in slides, the door being designed to withstand high pressures due to high winds, without get out of its slides, but having security in the event of a punctual impact against the door, for example the impact of a vehicle, to avoid tearing the door or deformation of the slides.

Le brevet US-2,839,135 (Anderson) divulgue une porte enroulable, constituée de lattes rigides articulées les unes aux autres. Certaines au moins des lattes comportent à leurs extrémités un chariot qui coulisse dans des glissières sans pouvoir en sortir. Cette porte est destinée à résister aux grands vents. Si la porte reçoit un choc ponctuel, par exemple le choc d'un camion, la latte qui reçoit le choc sera tordue ou déchirée, ou déformera la glissière. Dans tous les cas, une réparation est nécessaire, avec une immobilisation durable de la porte.US Patent 2,839,135 (Anderson) discloses a roll-up door, consisting of rigid slats hinged to each other. At least some of the slats have at their ends a carriage which slides in slides without being able to leave it. This door is intended to withstand high winds. If the door receives a punctual shock, for example the shock of a truck, the slat which receives the shock will be bent or torn, or will deform the slide. In all cases, a repair is necessary, with a permanent immobilization of the door.

La présente invention a pour objet une porte comportant un rideau souple dont les bords sont guidés dans des glissières, et maintenues dans ces glissières par des chariots de retenue, caractérisée en ce qu'elle comporte des moyens de liaison et de répartition des contraintes exercées sur les bords par les chariots, quand la porte est soumise à des efforts.The present invention relates to a door comprising a flexible curtain, the edges of which are guided in slides, and held in these slides by retaining carriages, characterized in that it comprises means of connection and distribution of the stresses exerted on the edges by the carriages, when the door is subjected to efforts.

Les moyens de répartition peuvent être des éléments de résistance transversale constitués par des barres de raidissement du rideau, des chariots de retenue étant fixés aux deux extrémités d'au moins certaines barres, les barres pouvant être reliées les unes aux autres par des sangles souples avantageusement fixées au rideau. Les moyens de répartition peuvent aussi être constitués par des sangles souples, fixées au rideau transversalement, des chariots de retenue étant fixés aux deux extrémités d'au moins certaines sangles. Les moyens de répartition peuvent aussi être constitués par des sangles souples fixées au rideau le long de ses bords, les chariots de retenue étant fixés à intervalles le long de telles sangles.The distribution means can be elements of transverse resistance constituted by stiffening bars of the curtain, retaining carriages being fixed at the two ends of at least certain bars, the bars being able to be connected to one another by flexible straps advantageously attached to the curtain. The distribution means can also be constituted by flexible straps, fixed to the curtain transversely, retaining carriages being fixed at the two ends of at least certain straps. The distribution means can also be constituted by flexible straps fixed to the curtain along its edges, the retaining carriages being fixed at intervals along such straps.

Selon une caractéristique de l'invention, les moyens de répartition et les chariots sont connectés par l'intermédiaire d'une liaison mécanique adaptée à se défaire sous l'effet d'une force déterminée.According to a characteristic of the invention, the distribution means and the carriages are connected by means of a mechanical connection adapted to come apart under the effect of a determined force.

Dans un mode de réalisation avantageux de la présente invention, un élément de sécurité susceptible de rupture en cas d'un effort déterminé, est interposé entre chaque chariot de retenue, et les moyens de répartition des efforts. Cet élément de sécurité peut être un élément déboitable ou cassable, tel qu'une goupille cisaillable, ou des rivets ou des vis cassants, faciles à remplacer après une rupture, sans aucun démontage.In an advantageous embodiment of the present invention, a safety element capable of breaking in the event of a determined force, is interposed between each retaining carriage, and the means for distributing the forces. This safety element can be a removable or breakable element, such as a shearable pin, or brittle rivets or screws, easy to replace after a break, without any disassembly.

Le brevet allemand DE-40 07 280 divulgue une porte enroulable dans laquelle la barre de charge se prolonge sur ses extrémités par des pièces de glissement qui pénètrent dans des glissières latérales. Les pièces de glissement, selon une forme de réalisation, sont connectées à la barre de charge par l'intermédiaire des parties cassantes adaptées à rompre en cas de choc contre la barre de charge.German patent DE-40 07 280 discloses a roll-up door in which the load bar is extended at its ends by sliding parts which penetrate into side rails. The sliding parts, according to one embodiment, are connected to the load bar by means of brittle parts adapted to break in the event of an impact against the load bar.

Pour la fixation de la pièce de glissement, sur la barre de charge, la partie cassante se prolonge par un élément de liaison qui est boulonné sur la barre de charge. En cas de rupture de la partie cassante, il faut changer l'ensemble constitué par la pièce de glissement, la partie cassante et l'élément de liaison après déboulonnage.For fixing the sliding part, on the load bar, the brittle part is extended by a connecting element which is bolted to the load bar. In the event of the brittle part breaking, the assembly consisting of the sliding part, the brittle part and the connecting element must be changed after unbolting.

Le choix d'une goupille comme élément de liaison a l'avantage que sa résistance mécanique est déterminable avec précision. De ce fait, les goupilles pourrait être usinées telles qu'elles résistent aux vents violents et cassent sous l'effet d'une poussée ponctuelle d'une certaine force. De plus, il est possible de procéder au changement de goupille sans l'aide d'aucun ustensile spécifique. En plus d'un gain en fiabilité vient s'ajouter un gain de temps d'immobilisation de la porte.The choice of a pin as a connecting element has the advantage that its mechanical resistance can be determined with precision. As a result, the pins could be machined such that they resist strong winds and break under the effect of a punctual push of a certain force. In addition, it is possible to change the pin without using any specific tool. In addition to a gain in reliability is added a gain in downtime of the door.

Les glissières de rideau empêchent le vent de pénétrer directement par les côtés guidés de la porte ; d'ailleurs il serait aisé d'adapter un élément d'étanchéité sur les glissières sur au moins un côté du rideau, permettant de couper efficacement le vent. De plus, dans le cas d'une porte à relevage verticale, ces glissières constitueraient les montants de la structure supportant la traverse dans laquelle est monté le mécanisme d'enroulement ou de repliage.The curtain rails prevent wind from entering directly through the guided sides of the door; moreover, it would be easy to adapt a sealing element on the slides on at least one side of the curtain, making it possible to effectively cut the wind. In addition, in the case of a vertical lift door, these slides would constitute the uprights of the structure supporting the cross member in which the winding or folding mechanism is mounted.

D'autres caractéristiques, avantages et particularités ressortiront de la description qui va suivre, faite en regard des dessins annexés et donnant à titre indicatif mais non limitatif un mode de réalisation de l'invention.Other characteristics, advantages and particularities will emerge from the description which follows, made with reference to the appended drawings and giving by way of indication but not limitation an embodiment of the invention.

Sur les dessins:

  • la figure 1 est une vue en coupe d'une partie d'une porte à rideau souple selon l'invention selon un plan horizontal passant par l'axe longitudinal d'une barre d'armature;
  • la figure 2 est une vue en coupe d'une partie de porte représentée en figure 1 selon la ligne de coupe I-I;
  • la figure 3 est une vue en coupe analogue à la figure 1 pour un autre mode de réalisation de l'invention, prise suivant la ligne III-III de la figure 4 ; et
  • la figure 4 est une vue en élévation du bord du rideau de la figure 3, au niveau d'un chariot de retenue.
In the drawings:
  • Figure 1 is a sectional view of a portion of a flexible curtain door according to the invention along a horizontal plane passing through the longitudinal axis of a rebar;
  • Figure 2 is a sectional view of a door portion shown in Figure 1 along the section line II;
  • Figure 3 is a sectional view similar to Figure 1 for another embodiment of the invention, taken along line III-III of Figure 4; and
  • Figure 4 is an elevational view of the edge of the curtain of Figure 3, at a retaining carriage.

Le mode de réalisation qui va maintenant être décrit en regard des figures 1 et 2 se rapporte à une porte de manutention à rideau souple à relevage vertical, mais la présente invention est tout aussi bien adaptable sur une porte de manutention translatable horizontalement. Ce mode de réalisation ne saurait donc avoir un caractère limitatif.The embodiment which will now be described with reference to FIGS. 1 and 2 relates to a handling door with a flexible curtain with vertical lifting, but the present invention is just as easily adaptable to a handling door which can be translated horizontally. This embodiment cannot therefore be limiting.

Une porte de manutention à rideau souple à relevage vertical comporte deux montants latéraux verticaux formant glissières sur lesquels est généralement montée une traverse formant linteau.A flexible curtain lifting door with vertical lift has two vertical lateral uprights forming slides on which is generally mounted a crosspiece forming a lintel.

Sur les figures 1 et 2, on a représenté l'un des deux montants d'une porte à relevage vertical qui sert de glissière 1 de guidage pour le rideau souple rigidifié par des barres d'armature 2 logées dans le rideau 101 et dont les extrémités pénètrent dans ladite glissière 1. Cette dernière glissière 1 est constituée par un profilé en U vertical présentant deux retours la ayant pour fonction de rigidifier la structure du montant. Les retours la, également profilés en U, présentent deux parois 11 se faisant face qui favorisent le guidage de l'extrémité de la barre d'armature 2 dans la glissière 1.In FIGS. 1 and 2, one of the two uprights of a door with vertical lift is shown which serves as a guide rail 1 for the flexible curtain stiffened by reinforcing bars 2 housed in the curtain 101 and whose ends penetrate into said slide 1. This last slide 1 is constituted by a vertical U-shaped profile having two returns having the function of stiffening the structure of the upright. The returns 1a, also U-shaped, have two facing walls 11 which favor the guiding of the end of the rebar 2 in the slide 1.

A l'intérieur de la glissière 1, sur la paroi formant la base du profilé en U, une platine de renforcement 3 est soudée, rivetée ou vissée afin de garantir une base solide pour un rail de retenue 4 sur lequel s'exerce de fortes tensions. Le rail de retenue 4 est constitué par deux profilés symétriques par rapport à la ligne de coupe I-I (voir figure 1), et monté sur la platine de renforcement 3 de telle façon qu'il soit facilement démontable pour accéder à l'intérieur par exemple au moyen de vis et écrous 4b.. Ledit rail de retenue 4 formant glissière est doté d'une fente longitudinale et de deux parois frontales 4a de chaque côté de la fente sur lesquelles roule un chariot 5 muni de deux galets 5a montés sur un axe 5b. Tout comme la glissière 1, le rail de retenue 4 présente deux retours 41 se faisant face et situé de part et d'autre de la fente longitudinale. Ces retours 41 ont pour fonction de limiter la liberté de déplacement du chariot 5 à l'intérieur du rail de retenue 4, mais aussi de rigidifier la structure du rail de retenue 4.Inside the slide 1, on the wall forming the base of the U-shaped profile, a reinforcing plate 3 is welded, riveted or screwed in order to guarantee a solid base for a retaining rail 4 on which strong forces are exerted. tensions. The retaining rail 4 is constituted by two symmetrical sections with respect to the cutting line II (see FIG. 1), and mounted on the reinforcement plate 3 so that it is easily removable for accessing the interior for example by means of screws and nuts 4b. Said retaining rail 4 forming a slide has a longitudinal slot and two front walls 4a of each side of the slot on which rolls a carriage 5 provided with two rollers 5a mounted on an axis 5b. Like the slide 1, the retaining rail 4 has two returns 41 facing each other and located on either side of the longitudinal slot. The function of these returns 41 is to limit the freedom of movement of the carriage 5 inside the retaining rail 4, but also to stiffen the structure of the retaining rail 4.

Ledit chariot 5, présentant une tige 6 passant par l'axe 5b reliant les deux galets 5a, est relié à l'extrémité d'une barre d'armature 2 au moyen d'une articulation 7 constituée de deux éléments 7a, 7b, l'élément 7a étant solidaire de la barre d'armature 2 et l'élément 7b du chariot par l'intermédiaire de ladite tige 6. L'élément 7a de l'articulation 7 présente une section en forme de Y selon la ligne en coupe I-I dans lequel vient s'insérer l'élément 7b de l'articulation 7. Les deux éléments 7a, 7b présentent des alésages coaxiaux ou alignés dans lesquels vient s'insérer une goupille 71 constituant l'axe de l'articulation 7. Lorsque le rideau est exposé à un vent fort, les contraintes sont transmises aux chariots avec une concentration d'efforts. La barre 2 répartit ces efforts sur toute la largeur de la porte, ce qui évite les déchirures du rideau aux voisinages des chariots. Des sangles de transmission et de répartition des efforts perpendiculaires aux barres peuvent aussi être disposées entre les barres, collées ou cousues au rideau.Said carriage 5, having a rod 6 passing through the axis 5b connecting the two rollers 5a, is connected to the end of a rebar 2 by means of a hinge 7 consisting of two elements 7a, 7b, l element 7a being integral with rebar 2 and element 7b of the carriage via said rod 6. Element 7a of articulation 7 has a Y-shaped section along the line in section II in which the element 7b of the articulation 7 is inserted. The two elements 7a, 7b have coaxial or aligned bores in which is inserted a pin 71 constituting the axis of the articulation 7. When the curtain is exposed to a strong wind, the stresses are transmitted to the carriages with a concentration of efforts. The bar 2 distributes these forces over the entire width of the door, which prevents tearing of the curtain in the vicinity of the carriages. Transmission and force distribution straps perpendicular to the bars can also be placed between the bars, glued or sewn to the curtain.

Dans une réalisation avantageuse de la présente invention, la goupille 71 est adaptée à se rompre lorsqu'une force prédéterminée est appliquée sur la bare d'armature 32 perpendiculairement au rideau de sorte que ladite barre d'armature 2 se désolidarise de son chariot 5. La goupille 71 est usinée de façon à résister aux vents violents car la force est répartie sur l'ensemble du rideau et de façon à casser sous l'effet d'une poussée ponctuelle d'une certaine force qui n'est exercée que sur une seule barre ou au plus deux. Dans un détail de réalisation, la goupille 71 est munie d'une épingle 71a afin d'éviter tout retrait accidentel de la goupille 71.In an advantageous embodiment of the present invention, the pin 71 is adapted to break when a predetermined force is applied to the reinforcing bar 32 perpendicular to the curtain so that said reinforcing bar 2 is detached from its carriage 5. The pin 71 is machined so as to withstand strong winds because the force is distributed over the entire curtain and so as to break under the effect of a punctual push of a certain force which is only exerted on a single bar or at most two. In a detail of embodiment, the pin 71 is provided with a pin 71a in order to avoid any accidental withdrawal of the pin 71.

Alors que la structure de la porte peut parfaitement résister sans déformation à la poussée du vent, un choc sur une barre pourrait provoquer un arrachement du chariot ou une déformation du montant de la porte.While the structure of the door can withstand perfectly without deformation to the thrust of the wind, a shock on a bar could cause a tearing of the carriage or a deformation of the amount of the door.

L'avantage d'une goupille cassante amovible en tant qu'élément de liaison se situe à deux niveaux. Premièrement, il est plus facile de déterminer le seuil de rupture (c'est-à-dire la résistance mécanique). Deuxièmement, le remplacement de la goupille ne nécessite pas l'intervention d'un technicien spécialisé, de ce fait le temps d'immobilisation de la porte est réduit.The advantage of a removable brittle pin as a connecting element is on two levels. First, it is easier to determine the breaking point (i.e. the mechanical strength). Secondly, the replacement of the pin does not require the intervention of a specialized technician, therefore the downtime of the door is reduced.

La barre d'armature 2 est de réalisation creuse et a une souplesse d'ensemble suffisante pour lui permettre de sortir d'au moins une glissière 1 sous l'effet d'une collision dans le rideau souple. Ladite barre d'armature 2 est ici un tube et reçoit à chacune de ses extrémités une tige 8 solidaire de l'élément 7a de l'articulation 7.The rebar 2 is of hollow construction and has sufficient overall flexibility to allow it to exit from at least one slide 1 under the effect of a collision in the flexible curtain. Said reinforcing bar 2 is here a tube and receives at each of its ends a rod 8 secured to the element 7a of the articulation 7.

Sur la figure 1 est représenté en coupe un exemple de dispositif de réglage de l'enfoncement de la tige 8 à l'intérieur de la barre, c'est-à-dire un moyen pour ajuster la longueur de la barre et régler sa tension en présence de vent.In Figure 1 is shown in section an example of a device for adjusting the sinking of the rod 8 inside the bar, that is to say a means for adjusting the length of the bar and adjusting its tension. in the presence of wind.

La tige 8 est munie à son extrémité libre, opposée à l'articulation 7, d'une tête 8a de plus grand diamètre, présentant ainsi un épaulement 8b par lequel cette tête peut être retenue. Dans ce but, un manchon 9 est logé dans l'extrémité de la barre 2, et peut y être maintenu par des goupilles 9a indiquées schématiquement. Le diamètre de la tête 8a est prévu pour coulisser librement à l'intérieur du manchon 9. La surface intérieure du manchon 9 est filetée et une douille 10, filetée extérieurement peut être vissée dans le manchon. Le diamètre intérieur de la douille 10 permet de recevoir librement la tige 8, mais pas la tête 8a, dont le gradin 8b est appliqué contre le bord d'extrémité de la douille. Un contre écrou 10a permet de bloquer la douille à la position choisie, c'est-à-dire permet de choisir la distance entre l'extrémité de la barre 2 et l'axe de l'articulation 7.The rod 8 is provided at its free end, opposite the articulation 7, with a head 8a of larger diameter, thus having a shoulder 8b by which this head can be retained. For this purpose, a sleeve 9 is housed in the end of the bar 2, and can be held there by pins 9a indicated diagrammatically. The diameter of the head 8a is provided to slide freely inside the sleeve 9. The interior surface of the sleeve 9 is threaded and a sleeve 10, externally threaded can be screwed into the sleeve. The internal diameter of the sleeve 10 allows the rod 8 to be freely received, but not the head 8a, the step 8b of which is applied against the end edge of the sleeve. A lock nut 10a makes it possible to block the socket in the chosen position, that is to say allows the distance between the end of the bar 2 and the axis of the articulation 7 to be chosen.

Un autre mode de réalisation de l'invention est représenté sur les figures 3 et 4 relative à un rideau à enroulement.Another embodiment of the invention is shown in Figures 3 and 4 relating to a rolling curtain.

Le rideau souple 101 est muni à différentes hauteurs, pour assurer la résistance transversale entre les côtés, d'une sangle en polyester 102. Cette sangle est disposée à l'intérieur d'un fourreau constituté de deux feuilles plastiques 103a, 103b un peu plus larges que la sangle et soudées sur leurs bords, l'ensemble étant soudé ou collé au rideau souple 101. Sur le bord du rideau, une pièce métallique de liaison est constituée dans cet exemple par deux lames ou plaques rigides 104a, 104b, par exemple en acier, disposées des deux côtés de la sangle et serrées contre celle-ci par des vis et écrous 105a, 105b. Les lames sont découpées avec une ouverture 106 prévue pour le passage de l'axe 107 des galets 108. Un autre exemple de glissière 109 est représenté en coupe sur la figure 3. La disposition qui vient d'être décrite permet d'enrouler régulièrement le rideau qui est ainsi complètement souple, et les lames d'acier peuvent se placer sur le bord de l'arbre d'enroulement du rideau, et assurer, lors du déroulement, le placement correct des galets dans les glissières. Les écarts entre les différentes sangles réparties sur la hauteur du rideau peuvent le cas échéant n'être pas égaux, pour éviter que les galets ne se superposent en gênant l'enroulement. L'effort exercé par le vent sur le rideau est repris sur l'ensemble de la largeur par les sangles 102, et est transmis ainsi aux glissières par les galets.The flexible curtain 101 is provided at different heights, to ensure transverse resistance between the sides, with a polyester strap 102. This strap is placed inside a sheath made up of two plastic sheets 103a, 103b a little more as wide as the strap and welded at their edges, the assembly being welded or glued to the flexible curtain 101. On the edge of the curtain, a metallic connecting piece is constituted in this example by two blades or rigid plates 104a, 104b, for example made of steel, arranged on both sides of the strap and tightened against the latter by screws and nuts 105a, 105b. The blades are cut with an opening 106 provided for the passage of the axis 107 of the rollers 108. Another example of slide 109 is shown in section in FIG. 3. The arrangement which has just been described makes it possible to regularly wind the curtain which is thus completely flexible, and the steel blades can be placed on the edge of the winding shaft of the curtain, and ensure, during the unwinding, the correct placement of the rollers in the slides. The gaps between the different straps distributed over the height of the curtain may not be equal, if necessary, to prevent the rollers from overlapping, hampering the winding. The force exerted by the wind on the curtain is taken up over the entire width by the straps 102, and is thus transmitted to the slides by the rollers.

Dans un mode d'application avantageux de l'invention, il est prévu d'interposer des moyens de sécurité entre les galets de retenue et les moyens de répartition des contraintes, pour séparer les galets desdits moyens de répartition, en cas d'effort excessif ou anormal, par exemple concentré sur une seule sangle, par exemple par le choc d'un véhicule. Conformément au mode d'application de l'invention, ces moyens peuvent être réalisés par l'utilisation de vis cisaillables à un certain effort tranchant, par exemple en matière plastique, pour les vis de serrage 105 qui maintiennent ensemble les lames d'acier 104. Ce moyen est simple et en cas de rupture, les vis peuvent être remplacées immédiatement sans intervention d'aucun spécialiste.In an advantageous embodiment of the invention, provision is made to interpose safety means between the retaining rollers and the stress distribution means, to separate the rollers from said distribution means, in the event of excessive or abnormal force, for example concentrated on a single strap, for example by the impact of a vehicle. In accordance with the mode of application of the invention, these means can be produced by the use of screws which can be sheared at a certain shearing force, for example made of plastic, for the clamping screws 105 which hold the steel blades 104 together. This means is simple and in the event of a breakage, the screws can be replaced immediately without the intervention of any specialist.

Claims (9)

1.- Porte de manutention à ouverture et fermeture rapide pour le passage de véhicules, comportant un rideau souple (101), enroulable ou repliable, les bords du rideau étant guidés chacun dans une glissière (1), et y étant retenus par des chariots de retenue (5) guidés par des rails (4) logés dans les glissières, sans que les chariots ne puissent quitter lesdits rails, caractérisée en ce qu'elle comporte des moyens de liaison (6, 7, 8, 104) entre le rideau et les chariots, et de répartition (2, 102) des contraintes exercées sur les bords du rideau par les chariots quand la porte est soumise à des efforts. 1.- Quick opening and closing handling door for the passage of vehicles, comprising a flexible curtain (101), rollable or foldable, the edges of the curtain being each guided in a slide (1), and being held there by carriages retainer (5) guided by rails (4) housed in the slides, without the carriages can leave said rails, characterized in that it comprises connecting means (6, 7, 8, 104) between the curtain and the carriages, and distribution (2, 102) of the stresses exerted on the edges of the curtain by the carriages when the door is subjected to forces. 2.- Porte selon la revendication 1, dans laquelle les moyens de répartition sont des éléments de résistance transversale constitués par des barres (2) disposées d'un bord à l'autre du rideau, les chariots étant fixés aux deux extrémités d'au moins certaines barres. 2. A door according to claim 1, in which the distribution means are elements of transverse resistance constituted by bars (2) arranged from one edge to the other of the curtain, the carriages being fixed at the two ends of the minus some bars. 3.- Porte selon la revendication 1, dans laquelle les moyens de répartition sont des éléments de résistance transversalle constitués par des sangles (102) disposées d'un bord à l'autre du rideau, les chariots étant fixés aux deux extrémités d'au moins certaines sangles. 3. Door according to claim 1, in which the distribution means are transversal resistance elements constituted by straps (102) arranged from one edge to the other of the curtain, the carriages being fixed at the two ends of the minus some straps. 4.- Porte selon une des revendications 2 ou 3, dans laquelle les moyens de répartition comprennent en outre des sangles souples disposées parallèlement aux bords du rideau. 4.- Door according to one of claims 2 or 3, wherein the distribution means further comprise flexible straps arranged parallel to the edges of the curtain. 5.- Porte selon une des revendications précédentes, caractérisée en ce que les moyens de répartition et les chariots sont connectés par l'intermédiaire d'une liaison mécanique (71, 105) adaptée à se défaire sous l'effet d'une force déterminée. 5.- Door according to one of the preceding claims, characterized in that the distribution means and the carriages are connected by means of a mechanical connection (71, 105) adapted to come apart under the effect of a determined force . 6.- Porte selon la revendication 5, dans laquelle la liaison mécanique est constituée par une cheville cisaillable (71), pouvant servir d'axe à une articulation. 6. A door according to claim 5, wherein the mechanical connection is constituted by a shearable pin (71), which can serve as an axis for a joint. 7.- Porte selon la revendication 5, dans laquelle la liaison mécanique est constituée par au moins une liaison vis/écrou, la vis (105a) étant cisaillable à un certain effort tranchant. 7. A door according to claim 5, wherein the mechanical connection is constituted by at least one screw / nut connection, the screw (105a) being shearable at a certain shearing force. 8.- Porte selon une des revendications précédentes, dans laquelle un moyen de réglage de longueur (8a, 9, 10, 10a) est interposé entre au moins un chariot de retenue (5) et les moyens (2) adjacents de répartition des contraintes. 8. Door according to one of the preceding claims, in which a length adjustment means (8a, 9, 10, 10a) is interposed between at least one retaining carriage (5) and the adjacent means (2) for distributing the stresses. . 9.- Porte selon la revendication 3, dans laquelle les moyens de liaison entre un chariot de retenue et une sangle sont constitués par deux plaques rigides (104a, 104b) serrées à un bout des deux côtés de la sangle, et comportant à l'autre bout une fixation (106) au chariot. 9.- Door according to claim 3, wherein the connecting means between a retaining carriage and a strap are constituted by two rigid plates (104a, 104b) clamped at one end on both sides of the strap, and comprising at other end a fixing (106) to the carriage.
EP93402378A 1992-10-02 1993-09-29 Roller shutter with flexible screen resisting wind pressure Expired - Lifetime EP0591050B1 (en)

Applications Claiming Priority (2)

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FR9211669 1992-10-02
FR9211669A FR2696498B1 (en) 1992-10-02 1992-10-02 Windproof flexible curtain handling door.

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EP0591050A1 true EP0591050A1 (en) 1994-04-06
EP0591050B1 EP0591050B1 (en) 1997-04-02

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EP (1) EP0591050B1 (en)
DE (1) DE69309385T2 (en)
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US2839135A (en) * 1956-02-16 1958-06-17 Kinnear Mfg Co Rolling door
EP0405093A2 (en) * 1989-06-27 1991-01-02 Rytec Corporation Apparatus configured for maintaining a barrier in a position against a trans-barrier force less than a predetermined magnitude
DE4007280A1 (en) * 1990-02-12 1991-08-14 Norbert Lamsfuss Overload protection for flexible door - consists of bar with lugs which bend or break under excessive load

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EP1288429A2 (en) * 1995-02-10 2003-03-05 RITE-HITE HOLDING Corporation Breakaway guide assembly for a roller door
EP1288429A3 (en) * 1995-02-10 2003-06-25 RITE-HITE HOLDING Corporation Breakaway guide assembly for a roller door
FR2739653A1 (en) * 1995-10-06 1997-04-11 Mavil Frame for cargo door
GB2306995A (en) * 1995-11-08 1997-05-14 Stanley Robin Shaw Tensioned movable door with supported and guided edges
EP0775797A1 (en) * 1996-01-31 1997-05-28 LAMSFUSS, Norbert Roller door
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EP1462602A2 (en) 2003-03-27 2004-09-29 Ditec S.p.A. Folding door

Also Published As

Publication number Publication date
EP0591050B1 (en) 1997-04-02
US6035918A (en) 2000-03-14
US5477902A (en) 1995-12-26
DE69309385D1 (en) 1997-05-07
FR2696498B1 (en) 1994-11-25
FR2696498A1 (en) 1994-04-08
DE69309385T2 (en) 1997-11-06

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