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EP0623731A1 - Overhead industrial door with improved lateral sealing - Google Patents

Overhead industrial door with improved lateral sealing Download PDF

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Publication number
EP0623731A1
EP0623731A1 EP93401176A EP93401176A EP0623731A1 EP 0623731 A1 EP0623731 A1 EP 0623731A1 EP 93401176 A EP93401176 A EP 93401176A EP 93401176 A EP93401176 A EP 93401176A EP 0623731 A1 EP0623731 A1 EP 0623731A1
Authority
EP
European Patent Office
Prior art keywords
curtain
sheet material
constriction
plane
lateral
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.)
Withdrawn
Application number
EP93401176A
Other languages
German (de)
French (fr)
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
Original Assignee
Nergeco SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to FR9113682A priority Critical patent/FR2683258A1/en
Application filed by Nergeco SA filed Critical Nergeco SA
Priority to EP93401176A priority patent/EP0623731A1/en
Priority to CA002097991A priority patent/CA2097991A1/en
Publication of EP0623731A1 publication Critical patent/EP0623731A1/en
Withdrawn legal-status Critical Current

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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
    • E06B9/56—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
    • 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 liftable curtain door with improved lateral tightness, intended to reduce the passage of air through the door, to limit heat exchange and / or the entry of dust or microorganisms into a room.
  • Such doors generally comprise two lateral uprights provided with slides in which the lateral parts of the curtain slide.
  • European patent n ° 0 194 194 describes a technical solution making it possible to avoid the passage of air between the slides and the lateral parts of the curtain.
  • the side uprights are U-section profiles which have a bottom wall substantially perpendicular to the curtain, and two side walls which extend from the bottom wall towards the curtain, parallel to the curtain.
  • the side edges of the curtain are extended by a strip of flexible material which rubs against the bottom of the U-shaped profile.
  • the document EP 0 033 199 describes a liftable curtain door having a flexible rubber curtain provided with thick side edges which slide in slides.
  • the slides have a constriction arranged between the thick edge of the curtain and the opening to be closed.
  • This type of door is particularly intended to produce a substantially sealed closure between sections of a mine which are maintained at a determined pressure.
  • the thick edges of the curtain are deformable so as to pass through the throttle of the slide during a violent impact on the curtain. But in such a case, the thick edge of the curtain may get stuck in the throttle of the slide, which subsequently prevents the curtain from being raised and blocks the door in the closed position.
  • the object of the present invention is to remedy this drawback.
  • the subject of the present invention is a flexible curtain door which can be raised to close a bay, comprising two lateral uprights each having a slide forming a constriction, the curtain forming substantially a plane and comprising lateral edges which slide in said constriction and which are provided with reliefs protruding out of the plane of the curtain, said reliefs being arranged in a substantially continuous manner along the lateral edges of the curtain and being adapted to be applied in a manner substantially tight against the throttling of the slides at least when the curtain undergoes a tensile force directed towards the interior of the opening, said reliefs having sufficient flexibility to pass through said constriction when said tensile force exceeds a determined value, characterized in that that said reliefs are constituted by a flexible elastic sheet material secured to the lateral edges of the curtain, and said sheet material extends diverging from each lateral edge of the curtain, on each side of the plane of the curtain.
  • the side edges of the curtain can be deformed to have a very small thickness so that they are not likely
  • the sheet material may comprise two lateral sheets each integral with said lateral edge of the curtain, and each extending from one side of the plane of the curtain diverging from the lateral edge of the curtain, or it may comprise a single sheet formed in loop, which constitutes a hollow bead secured to the side edge of the curtain.
  • said sheet material can extend continuously along each lateral edge of the curtain.
  • said sheet material may include horizontal cutouts to facilitate the deformation of the curtain out of its plane, for example during winding on an axis during the raising of the curtain.
  • said constriction of the slide of each upright comprises ribs directed towards said sheet material, which extend continuously parallel to the lateral edge of the curtain, and which are adapted to be applied in substantially sealed contact against said sheet material, at least when the curtain undergoes a tensile force directed towards the interior of the opening.
  • said sheet material has ribs directed towards the constriction of the post slide, which extend substantially continuously parallel to the lateral edge of the curtain. and which are adapted to be applied in sealed contact against said constriction, at least when the curtain undergoes a tensile force directed towards the interior of the opening.
  • said sheet material has reliefs facing the throttle of the upright slide, and said throttle comprises reliefs against which said reliefs of sheet material abut when the curtain undergoes a pulling force directed towards the interior of the bay.
  • said constriction of the slide of each upright comprises sliding pads or rolling means arranged at a certain distance on each side of the plane of the curtain, facing the sheet material.
  • said sheet material comprises sliding pads or rolling means arranged at a certain distance on each side of the plane of the curtain, opposite the throttle of the slide of each lateral upright.
  • the door according to the invention has two lateral uprights 1, 2, which generally frame an opening 5 open in a wall 9 of a building.
  • the lateral uprights 1, 2 each comprise a slide forming a constriction 7 in the vicinity of the opening 5, the constriction 7 delimiting a vertical slot 8.
  • the vertical lateral uprights are profiles, for example metallic, having a U-shaped section.
  • the throttle of the slide consists of a front wall 7 from which extend two walls 10, towards the outside of the opening 5, but the uprights 1, 2 could have any other shape without departing from the scope of the present invention, provided that they have a throttle 7.
  • the door of FIG. 1 also has a lifting curtain 4, which has lateral edges 4a sliding in the slot 8 of each lateral upright.
  • the curtain 4 is flexible, so that, when a force is applied to it perpendicular to its plane, this force results in a traction on the lateral edges 4a of said curtain, which tends to cause said lateral edges 4a to come out of the slots 8
  • the curtain 4 also includes reinforcing bars 6 horizontal. It is essential that these bars have sufficient flexibility to allow the edges 4a to come out of their slot 8 when a sufficient force is applied to the curtain 4 perpendicular to its plane, for example during an impact of a handling vehicle against the curtain 4.
  • the door further comprises a cross member 3 which connects the lateral uprights 1, 2 at their upper ends.
  • a cross 3 could possibly be omitted without departing from the scope of the present invention.
  • the door curtain according to the present invention can be raised in various ways.
  • the curtain 4 can be raised by winding around a horizontal axis 11 located in the upper part of the door.
  • the lateral uprights 1, 2 of the door can be extended in the upper part by slides 15, 16 in which the lateral edges 4a of the curtain 4 can slide. In the latter case, the curtain 4 is raised without winding, by simple sliding in the slides 15 and 16.
  • the curtain 4 can be actuated by mechanical or electromechanical means which are well known in the state of the art.
  • each lateral edge 4a of the curtain 4 of the door may comprise two sheets of elastic flexible material 20, 21 which extend continuously over the entire height of the lateral edge 4a, each of 'one side of the curtain plane.
  • Each of the sheets 20, 21 is integral with the lateral edge 4a of the curtain, and extends from said edge 4a in a direction not parallel to the plane of the curtain 4.
  • the lateral edge 4a of the curtain thus has a Y-shaped section or from T.
  • the flexible sheets 20, 21 may each comprise a part parallel to the plane of the curtain, respectively 20a, 21a, and a bent part, respectively 20b, 21b, not parallel to the plane of the curtain.
  • this angle can be different from 90 °, provided that it is not equal to 180 °.
  • Each part parallel to the plane of the curtain 20a, 21a is fixed to the curtain by any known means, for example by sewing, welding, gluing, hot pressing, etc.
  • the sheets 20, 21 can be fixed to one another in the vicinity of the junction 22 between their parts parallel to the curtain and their bent parts.
  • the sheets 20, 21 can thus be formed in one piece.
  • the bent portions 20b, 21b of each flexible sheet 20, 21, may include horizontal slots 23, distributed over the height of the side edge 4a of the curtain. This facilitates the deformation of the curtain 4 out of its plane, for example when the curtain 4 must be rolled up when it is raised.
  • the curtain 4 is then wound on a roller 24 rotatable about an axis 11. It may be advantageous that the width of the roller 24 is equal to or slightly less than the width of the curtain 4 itself , so that the bent parts 20b, 21b of the flexible sheets 20, 21 wind up outside the axial ends 25 of said roller 24. This prevents said bent parts 20b, 21b from creating local excess thicknesses in the winding of the curtain.
  • FIG. 9 represents the arrangement of the lateral edge 4a of FIG. 7 when it is inserted into a slide formed by a constriction 7 of a lateral upright 1.
  • the edge lateral 4a does not undergo any pulling force towards the interior of the opening 5.
  • the bent parts 20b, 21b of the flexible sheets 20, 21 are slightly deformed towards the outside of the opening 5 , so that their respective free end 20c, 21c is in elastic contact against the throttle 7 of the upright.
  • said sheets 20, 21 make a sealed contact between the curtain 4 and the lateral uprights 1, 2, without the friction between said sheets 20, 21 and the constriction 7 being significant.
  • said sheets 20, 21 rub against the constriction 7 only by their free ends 20c, 21c, so that the friction surface is limited.
  • the door according to the invention ensures that there is substantially no significant passage of air through the opening 5 when the curtain 4 is lowered.
  • the bent parts 20b, 21b of the flexible sheets 20, 21 may include ribs 27 parallel to the lateral edge 4a of the curtain. These ribs 27 are directed towards the constriction 7 of the lateral upright and are adapted to apply elastically in a sealed manner against said constriction 7.
  • the ribs 27 limit the contact surface between the flexible sheets 20, 21 and the constriction 7, and therefore also limit the friction between said flexible sheets 20, 21 and the constriction 7 when the curtain 4 slides.
  • the constriction 7 of each upright 1, 2 may optionally include ribs 28 parallel to the lateral edge 4a of said curtain and directed towards the sheets 20, 21 of said lateral edge 4a, on each side of the plane of the curtain 4.
  • These ribs 28 also have the effect of limiting the friction between the constriction 7 and said sheets 20, 21 during the sliding of the curtain 4.
  • the ribs 28 of the throttle 7 may be formed in one piece with said constriction 7, as shown in FIG. 17, or else, as shown in FIG. 18, the ribs 28 may be seals made of rubber or of another flexible material, attached to the throttling 7.
  • the bent parts 20b, 21b may be advantageous for the bent parts 20b, 21b, to have in the vicinity of their respective free ends 20c, 21c rollers adapted to roll vertically against the throttle 7, while maintaining a spacing between said bent parts 20b, 21b and the constriction 7, when no tensile force is applied to the curtain 4.
  • this configuration there is no sealed contact between the flexible sheets 20, 21 and the constriction 7 of each side door jamb. Thanks to the rollers 29, any friction between the flexible sheets 20, 21 and the constriction 7 of each lateral upright of the curtain is substantially eliminated, which results in an appreciable gain in energy.
  • rollers 29 could be arranged on the constriction 7 instead of being disposed on the bent parts 20b, 21b of said flexible sheets 20, 21.
  • the rollers 29 could be replaced by sliding shoes 30, which can be arranged on the bent parts 20b, 21b of the flexible sheets 20, 21, in the vicinity of their respective free ends 20c , 21c.
  • the sliding pads 30 can be arranged on the constriction 7, like the rollers of FIG. 21.
  • the lateral edge 4a of the curtain can be fixed to a single elastic flexible sheet 26 formed in a loop and s' extending longitudinally along the lateral edge 4a of the curtain.
  • the flexible sheet 26 has two ends 26a and 26b which are fixed to the lateral edge 4a of the curtain, by any known means.
  • the flexible sheet 26 departs from the plane of the curtain 4, on each side of said plane of the curtain 4, so that the lateral edge 4a of the curtain locally has a Y-shaped section, as it was previously seen.
  • the curtain 4 shown in Figure 12 therefore behaves in exactly the same way as the curtain described above, and it is capable of the same variants.
  • the curtain 4 has horizontal reinforcing bars 6 which slide in the lateral uprights 1, 2, these bars are generally threaded in sheaths formed in the curtain 4.
  • this fixing is done for example by sewing or by hot pressing, it risks locally obstructing the sleeves intended to receive the bars 6.
  • the solution shown in FIG. 13 can be used.
  • the lateral edge 4a of the curtain comprises a single flexible sheet 26 formed in a loop and fixed by its two ends 26a at the edges of the curtain 4.
  • the sheet 26 extends along the side edge 4a of the curtain, but it is interrupted at each horizontal bar 6.
  • seals 31 one of which is shown in FIG. 14.
  • Each seal 31 has a front part 32 adapted to fit onto the end 6a of the bar 6, and a rear part 33 which may comprise two elastic flexible sheets 34, 35 extending from the front part 32 towards the outside of the curtain 4, diverging on each side of the plane of the curtain 4.
  • the rear part 33 is adapted to be applied in a sealed manner against the constriction 7 of the slide in which the lateral edge 4a of the curtain slides.
  • the rear part 33 could comprise a single flexible sheet formed in a loop and fixed at its two ends to the front part 32.
  • the front part 32 of the seal 31 comprises two elastic sheets 35, 36 joined at a rear end 37, and which are adapted to be fitted onto the side bars 6 and the curtain 4 from the side edge 4a of the curtain, by elastically tightening said bars 6 and said curtain 4.

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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

Door with a flexible roll-up shutter (4) for closing off an opening (5), comprising two lateral uprights, each having a slideway forming a narrowing (7), the shutter (4) basically forming a plane and comprising lateral edges which slide within the said narrowing (7) and are fitted with projections protruding outside the plane of the shutter, the said projections being positioned so as to be basically continuous along the lateral edges of the shutter and being designed to press in a basically sealing manner against the narrowing (7) of the slideways at least when the shutter (4) is subjected to a tensile force in the direction of the inside of the opening (5), the said projections being sufficiently flexible to pass through the said narrowing (7) when the said tensile force exceeds a predetermined value, characterised in that the said projections are made of a flexible elastic material in sheet form (20, 21) which is securely attached to the lateral edges of the shutter, and the said sheet material diverges away from each lateral edge of the shutter, to each side of the shutter plane. <IMAGE>

Description

La présente invention concerne une porte à rideau relevable à étanchéité latérale améliorée, destinée à réduire le passage d'air au travers de la porte, pour limiter les échanges thermiques et/ou l'entrée de poussières ou de microorganismes dans un local.The present invention relates to a liftable curtain door with improved lateral tightness, intended to reduce the passage of air through the door, to limit heat exchange and / or the entry of dust or microorganisms into a room.

De telles portes comportent généralement deux montants latéraux dotés de glissières dans lesquelles coulissent des parties latérales du rideau. Le brevet européen n° 0 194 194 décrit une solution technique permettant d'éviter le passage d'air entre les glissières et les parties latérales du rideau. Selon cette solution, les montants latéraux sont des profilés à section en U qui comportent une paroi de fond sensiblement perpendiculaire au rideau, et deux parois latérales qui s'étendent à partir de la paroi de fond vers le rideau, parallèlement au rideau. Les bords latéraux du rideau sont prolongés par une bande d'un matériau souple qui frotte contre le fond du profilé en U.Such doors generally comprise two lateral uprights provided with slides in which the lateral parts of the curtain slide. European patent n ° 0 194 194 describes a technical solution making it possible to avoid the passage of air between the slides and the lateral parts of the curtain. According to this solution, the side uprights are U-section profiles which have a bottom wall substantially perpendicular to the curtain, and two side walls which extend from the bottom wall towards the curtain, parallel to the curtain. The side edges of the curtain are extended by a strip of flexible material which rubs against the bottom of the U-shaped profile.

Dans une telle solution, l'obtention d'une étanchéité excellente entre les bords latéraux du rideau et les glissières implique des frottements importants entre ladite bande de matériau souple et les glissières. Il en résulte une perte d'énergie importante lors de la manoeuvre du rideau. Cet inconvénient est particulièrement gênant dans les portes dites "de manutention", qui s'ouvrent et se ferment un grand nombre de fois par jour au passage de véhicules de manutention.In such a solution, obtaining an excellent seal between the lateral edges of the curtain and the slides involves significant friction between said strip of flexible material and the slides. This results in a significant loss of energy during the operation of the curtain. This drawback is particularly troublesome in so-called "handling" doors, which open and close a large number of times per day when handling vehicles pass.

Le document EP 0 033 199 décrit une porte à rideau relevable ayant un rideau souple en caoutchouc doté de bords latéraux épais qui coulissent dans des glissières. Les glissières présentent un étranglement disposé entre le bord épais du rideau et la baie à obturer. Ce type de porte est particulièrement destiné à réaliser une fermeture sensiblement étanche entre des tronçons d'une mine qui sont maintenus à une pression déterminée. Les bords épais du rideau sont déformables de façon à passer au travers de l'étranglement de la glissière lors d'un choc violent sur le rideau. Mais dans un tel cas, le bord épais du rideau risque de se coincer dans l'étranglement de la glissière, ce qui empêche par la suite de relever le rideau et bloque la porte en position fermée.The document EP 0 033 199 describes a liftable curtain door having a flexible rubber curtain provided with thick side edges which slide in slides. The slides have a constriction arranged between the thick edge of the curtain and the opening to be closed. This type of door is particularly intended to produce a substantially sealed closure between sections of a mine which are maintained at a determined pressure. The thick edges of the curtain are deformable so as to pass through the throttle of the slide during a violent impact on the curtain. But in such a case, the thick edge of the curtain may get stuck in the throttle of the slide, which subsequently prevents the curtain from being raised and blocks the door in the closed position.

La présente invention a pour but de remédier à cet inconvénient.The object of the present invention is to remedy this drawback.

La présente invention a pour objet une porte à rideau souple relevable pour obturer une baie, comportant deux montants latéraux ayant chacun une glissière formant un étranglement, le rideau formant sensiblement un plan et comportant des bords latéraux qui coulissent dans ledit étranglement et qui sont dotés de reliefs saillant hors du plan du rideau, lesdits reliefs étant disposés de façon sensiblement continue le long des bords latéraux du rideau et étant adaptés à s'appliquer de façon sensiblement étanche contre l'étranglement des glissières au moins lorsque le rideau subit une force de traction dirigée vers l'intérieur de la baie, lesdits reliefs ayant une souplesse suffisante pour traverser ledit étranglement lorsque ladite force de traction dépasse une valeur déterminée, caractérisée en ce que lesdits reliefs sont constitués par un matériau souple élastique en feuille solidaire des bords latéraux du rideau, et ledit matériau en feuille s'étend en divergeant à partir de chaque bord latéral du rideau, de chaque côté du plan du rideau. Ainsi, les bords latéraux du rideau peuvent être déformés jusqu'à présenter une épaisseur très faible de sorte qu'ils ne risquent pas de se coincer dans les étranglements des glissières lorsqu'ils sont partiellement sortis des glissières. De cette façon, on est certain que le rideau peut être relevé dans tous les cas.The subject of the present invention is a flexible curtain door which can be raised to close a bay, comprising two lateral uprights each having a slide forming a constriction, the curtain forming substantially a plane and comprising lateral edges which slide in said constriction and which are provided with reliefs protruding out of the plane of the curtain, said reliefs being arranged in a substantially continuous manner along the lateral edges of the curtain and being adapted to be applied in a manner substantially tight against the throttling of the slides at least when the curtain undergoes a tensile force directed towards the interior of the opening, said reliefs having sufficient flexibility to pass through said constriction when said tensile force exceeds a determined value, characterized in that that said reliefs are constituted by a flexible elastic sheet material secured to the lateral edges of the curtain, and said sheet material extends diverging from each lateral edge of the curtain, on each side of the plane of the curtain. Thus, the side edges of the curtain can be deformed to have a very small thickness so that they are not likely to get caught in the throttles of the slides when they are partially out of the slides. In this way, it is certain that the curtain can be raised in any case.

Le matériau en feuille peut comporter deux feuilles latérales solidaires chacune dudit bord latéral du rideau, et s'étendant chacune d'un côté du plan du rideau en divergeant à partir du bord latéral du rideau, ou bien il peut comporter une seule feuille formée en boucle, qui constitue un bourrelet creux solidaire du bord latéral du rideau. Avantageusement, ledit matériau en feuille peut s'étendre de façon continue le long de chaque bord latéral du rideau. En variante, ledit matériau en feuille peut comporter des découpes horizontales pour faciliter la déformation du rideau hors de son plan, par exemple lors d'un enroulement sur un axe pendant la remontée du rideau.The sheet material may comprise two lateral sheets each integral with said lateral edge of the curtain, and each extending from one side of the plane of the curtain diverging from the lateral edge of the curtain, or it may comprise a single sheet formed in loop, which constitutes a hollow bead secured to the side edge of the curtain. Advantageously, said sheet material can extend continuously along each lateral edge of the curtain. As a variant, said sheet material may include horizontal cutouts to facilitate the deformation of the curtain out of its plane, for example during winding on an axis during the raising of the curtain.

Selon une forme de réalisation avantageuse, ledit étranglement de la glissière de chaque montant comporte des nervures dirigées vers ledit matériau en feuille, qui s'étendent continûment parallèlement au bord latéral du rideau, et qui sont adaptées à s'appliquer en contact sensiblement étanche contre ledit matériau en feuille, au moins lorsque le rideau subit une force de traction dirigée vers l'intérieur de la baie. Dans tous les cas, que ledit étranglement comporte ou non des nervures, il est possible que ledit matériau eu feuille comporte des nervures dirigées vers l'étranglement de la glissière du montant, qui s'étendent de façon sensiblement continue parallèlement au bord latéral du rideau et qui sont adaptées à s'appliquer en contact étanche contre ledit étranglement, au moins lorsque le rideau subit une force de traction dirigée vers l'intérieur de la baie.According to an advantageous embodiment, said constriction of the slide of each upright comprises ribs directed towards said sheet material, which extend continuously parallel to the lateral edge of the curtain, and which are adapted to be applied in substantially sealed contact against said sheet material, at least when the curtain undergoes a tensile force directed towards the interior of the opening. In all cases, whether or not said constriction has ribs, it is possible that said sheet material has ribs directed towards the constriction of the post slide, which extend substantially continuously parallel to the lateral edge of the curtain. and which are adapted to be applied in sealed contact against said constriction, at least when the curtain undergoes a tensile force directed towards the interior of the opening.

Selon une forme de réalisation de l'invention, sur chaque bord latéral du rideau, ledit matériau en feuille comporte des reliefs faisant face à l'étranglement de la glissière du montant, et ledit étranglement comporte des reliefs contre lesquels lesdits reliefs du matériau en feuille viennent buter lorsque le rideau subit une force de traction dirigée vers l'intérieur de la baie.According to one embodiment of the invention, on each lateral edge of the curtain, said sheet material has reliefs facing the throttle of the upright slide, and said throttle comprises reliefs against which said reliefs of sheet material abut when the curtain undergoes a pulling force directed towards the interior of the bay.

Selon une autre forme de réalisation de l'invention, ledit étranglement de la glissière de chaque montant comporte des patins de glissement ou des moyens de roulement disposés à une certaine distance de chaque côté du plan du rideau, en regard du matériau en feuille.According to another embodiment of the invention, said constriction of the slide of each upright comprises sliding pads or rolling means arranged at a certain distance on each side of the plane of the curtain, facing the sheet material.

Selon encore une autre forme de réalisation de l'invention, ledit matériau en feuille comporte des patins de glissement ou des moyens de roulement disposés à une certaine distance de chaque côté du plan du rideau, en regard de l'étranglement de la glissière de chaque montant latéral.According to yet another embodiment of the invention, said sheet material comprises sliding pads or rolling means arranged at a certain distance on each side of the plane of the curtain, opposite the throttle of the slide of each lateral upright.

D'autres caractéristiques et avantages de l'invention apparaîtront au cours de la description suivante de plusieurs formes de réalisation de l'invention, données à titre d'exemples non limitatifs en regard des dessins joints, et qui feront bien comprendre comment l'invention peut être réalisée.Other characteristics and advantages of the invention will appear during the following description of several embodiments of the invention, given by way of nonlimiting examples with reference to the accompanying drawings, and which will make it clear how the invention can be done.

Sur les dessins :

  • la figure 1 est une vue d'ensemble en perspective d'un exemple de porte selon l'invention,
  • les figures 2 et 3 sont des vues schématiques illustrant deux modes possibles de relevage du rideau,
  • la figure 4 représente un bord latéral du rideau, selon une forme de réalisation de l'invention,
  • la figure 5 représente un bord latéral du rideau, selon une autre forme de réalisation de l'invention,
  • la figure 6 illustre l'enroulement du rideau des figures 4 et 5 autour d'un axe,
  • la figure 7 représente le bord latéral du rideau de la figure 5 ou de la figure 6, vu en coupe transversale avant mise en place dans ses glissières,
  • la figure 8 représente une variante du bord latéral de la figure 7,
  • la figure 9 est une vue en coupe illustrant la position du bord latéral de la figure 7 dans les glissières de la porte, lorsque le rideau ne subit pas de force de traction dirigée vers l'intérieur de la baie,
  • la figure 10 est une vue similaire à la figure 9, lorsque le rideau est soumis à la force du vent,
  • la figure 11 est aussi une vue similaire à la figure 9, lorsque le rideau est soumis à un choc violent,
  • la figure 12 est une vue en coupe d'une variante du bord latéral de la figure 7,
  • la figure 13 est une vue en perspective d'une forme particulière du bord latéral du rideau selon l'invention,
  • la figure 14 est une vue de détail de la figure 13,
  • les figures 15 et 16 représentent deux modes de réalisation particuliers du bord latéral du rideau selon l'invention,
  • les figures 17 et 18 représentent deux modes de réalisation particuliers de la glissière selon l'invention,
  • la figure 19 représente un mode de réalisation particulier du bord latéral du rideau selon l'invention, en place dans sa glissière,
  • la figure 20 est une vue similaire à la figure 19, lorsqu'une force de traction est appliquée au rideau, et
  • la figure 21 est une vue similaire à la figure 19, dans laquelle le bord latéral du rideau est analogue à celui de la figure 7 et la glissière est dotée de roulettes intérieures.
In the drawings:
  • FIG. 1 is an overall perspective view of an example of a door according to the invention,
  • FIGS. 2 and 3 are schematic views illustrating two possible methods of lifting the curtain,
  • FIG. 4 represents a lateral edge of the curtain, according to an embodiment of the invention,
  • FIG. 5 represents a lateral edge of the curtain, according to another embodiment of the invention,
  • FIG. 6 illustrates the winding of the curtain of FIGS. 4 and 5 around an axis,
  • FIG. 7 represents the lateral edge of the curtain of FIG. 5 or of FIG. 6, seen in cross section before being placed in its slides,
  • FIG. 8 represents a variant of the lateral edge of FIG. 7,
  • FIG. 9 is a sectional view illustrating the position of the lateral edge of FIG. 7 in the guides of the door, when the curtain is not subjected to a tensile force directed towards the interior of the opening,
  • FIG. 10 is a view similar to FIG. 9, when the curtain is subjected to the force of the wind,
  • FIG. 11 is also a view similar to FIG. 9, when the curtain is subjected to a violent shock,
  • FIG. 12 is a sectional view of a variant of the lateral edge of FIG. 7,
  • FIG. 13 is a perspective view of a particular shape of the lateral edge of the curtain according to the invention,
  • FIG. 14 is a detailed view of FIG. 13,
  • FIGS. 15 and 16 represent two particular embodiments of the lateral edge of the curtain according to the invention,
  • FIGS. 17 and 18 represent two particular embodiments of the slide according to the invention,
  • FIG. 19 represents a particular embodiment of the lateral edge of the curtain according to the invention, in place in its slide,
  • FIG. 20 is a view similar to FIG. 19, when a tensile force is applied to the curtain, and
  • FIG. 21 is a view similar to FIG. 19, in which the lateral edge of the curtain is similar to that of FIG. 7 and the slide is provided with internal rollers.

Sur les dessins, les mêmes références désignent des parties identiques ou similaires.In the drawings, the same references designate identical or similar parts.

Dans la description qui suit, des adjectifs tels que "vertical" ou "horizontal" sont parfois employés. On notera toutefois que de tels adjectifs ne sont employés que par commodité de langage et ne sont en aucune façon limitatifs. Ainsi, l'adjectif "vertical" doit être compris comme signifiant "parallèle aux bords latéraux du rideau", et l'adjectif "horizontal" doit être compris comme signifiant "perpendiculaire aux bords latéraux du rideau".In the following description, adjectives such as "vertical" or "horizontal" are sometimes used. It should be noted, however, that such adjectives are used only for convenience of language and are in no way limiting. Thus, the adjective "vertical" should be understood as meaning "parallel to the side edges of the curtain", and the adjective "horizontal" should be understood as meaning "perpendicular to the side edges of the curtain".

En référence à la figure 1, la porte selon l'invention présente deux montants latéraux 1, 2, qui encadrent généralement une baie 5 ouverte dans un mur 9 d'un bâtiment. Les montant latéraux 1, 2 comportent chacun une glissière formant un étranglement 7 au voisinage de la baie 5, l'étranglement 7 délimitant une fente verticale 8. Dans l'exemple particulier représenté sur la figure 1, les montants latéraux verticaux sont des profilés, par exemple métalliques, ayant une section en U. Ainsi, dans cet exemple, l'étranglement de la glissière est constitué par une paroi frontale 7 à partir de laquelle s'étendent deux parois 10, vers l'extérieur de la baie 5, mais les montants 1, 2 pourraient avoir toute autre forme sans pour autant sortir du cadre de la présente invention, pourvu qu'ils présentent un étranglement 7.Referring to Figure 1, the door according to the invention has two lateral uprights 1, 2, which generally frame an opening 5 open in a wall 9 of a building. The lateral uprights 1, 2 each comprise a slide forming a constriction 7 in the vicinity of the opening 5, the constriction 7 delimiting a vertical slot 8. In the particular example shown in FIG. 1, the vertical lateral uprights are profiles, for example metallic, having a U-shaped section. Thus, in this example, the throttle of the slide consists of a front wall 7 from which extend two walls 10, towards the outside of the opening 5, but the uprights 1, 2 could have any other shape without departing from the scope of the present invention, provided that they have a throttle 7.

La porte de la figure 1 présente en outre un rideau relevable 4, qui comporte des bords latéraux 4a coulissant dans la fente 8 de chaque montant latéral. Le rideau 4 est souple, de sorte que, lorsqu'une force lui est appliquée perpendiculairement à son plan, cette force se traduit par une traction sur les bords latéraux 4a dudit rideau, ce qui tend à faire sortir lesdits bords latéraux 4a des fentes 8. Dans l'exemple particulier représenté sur la figure 1, le rideau 4 comporte en outre des barres de renforcement 6 horizontales. Il est essentiel que ces barres aient une souplesse suffisante pour permettre aux bords 4a de sortir de leur fente 8 lorsqu'une force suffisante est appliquée au rideau 4 perpendiculairement à son plan, par exemple lors d'un choc d'un véhicule de manutention contre le rideau 4.The door of FIG. 1 also has a lifting curtain 4, which has lateral edges 4a sliding in the slot 8 of each lateral upright. The curtain 4 is flexible, so that, when a force is applied to it perpendicular to its plane, this force results in a traction on the lateral edges 4a of said curtain, which tends to cause said lateral edges 4a to come out of the slots 8 In the particular example shown in FIG. 1, the curtain 4 also includes reinforcing bars 6 horizontal. It is essential that these bars have sufficient flexibility to allow the edges 4a to come out of their slot 8 when a sufficient force is applied to the curtain 4 perpendicular to its plane, for example during an impact of a handling vehicle against the curtain 4.

Dans l'exemple particulier représenté sur la figure 1, la porte comporte en outre une traverse 3 qui relie les montants latéraux 1, 2 à leurs extrémités supérieures. Une telle traverse 3 pourrait éventuellement être omise sans pour autant sortir du cadre de la présente invention.In the particular example shown in Figure 1, the door further comprises a cross member 3 which connects the lateral uprights 1, 2 at their upper ends. Such a cross 3 could possibly be omitted without departing from the scope of the present invention.

Le rideau de la porte selon la présente invention peut être relevable de diverses façons. Par exemple, comme représenté sur la figure 2, le rideau 4 peut être relevable par enroulement autour d'un axe 11 horizontal situé en partie haute de la porte. En variante, comme représenté sur la figure 3, les montants latéraux 1, 2 de la porte peuvent être prolongés en partie supérieure par des glissières 15, 16 dans lesquelles peuvent coulisser les bords latéraux 4a du rideau 4. Dans ce dernier cas, le rideau 4 se relève sans enroulement, par simple coulissement dans les glissières 15 et 16.The door curtain according to the present invention can be raised in various ways. For example, as shown in Figure 2, the curtain 4 can be raised by winding around a horizontal axis 11 located in the upper part of the door. As a variant, as shown in FIG. 3, the lateral uprights 1, 2 of the door can be extended in the upper part by slides 15, 16 in which the lateral edges 4a of the curtain 4 can slide. In the latter case, the curtain 4 is raised without winding, by simple sliding in the slides 15 and 16.

Le rideau 4 peut être actionné par des moyens mécaniques ou électromécaniques qui sont bien connus dans l'état de l'art.The curtain 4 can be actuated by mechanical or electromechanical means which are well known in the state of the art.

Comme représenté sur la figure 4, chaque bord latéral 4a du rideau 4 de la porte selon la présente invention peut comporter deux feuilles de matériau souple élastique 20, 21 qui s'étendent de façon continue sur toute la hauteur du bord latéral 4a, chacune d'un côté du plan du rideau. Chacune des feuilles 20, 21 est solidaire du bord latéral 4a du rideau, et s'étend à partir dudit bord 4a dans une direction non parallèle au plan du rideau 4. Le bord latéral 4a du rideau présente ainsi une section en forme de Y ou de T.As shown in FIG. 4, each lateral edge 4a of the curtain 4 of the door according to the present invention may comprise two sheets of elastic flexible material 20, 21 which extend continuously over the entire height of the lateral edge 4a, each of 'one side of the curtain plane. Each of the sheets 20, 21 is integral with the lateral edge 4a of the curtain, and extends from said edge 4a in a direction not parallel to the plane of the curtain 4. The lateral edge 4a of the curtain thus has a Y-shaped section or from T.

Comme représenté sur la figure 7, les feuilles souples 20, 21 peuvent comporter chacune une partie parallèle au plan du rideau, respectivement 20a, 21a, et une partie coudée, respectivement 20b, 21b, non parallèle au plan du rideau. Dans l'exemple représenté sur la figure 7, chaque partie parallèle au plan du rideau 20a, 21a, fait avec la partie correspondante coudée 20b, 21b, un angle sensiblement égal à 90°. Toutefois, cet angle peut être différent de 90°, pourvu qu'il ne soit pas égal 180°. Chaque partie parallèle au plan du rideau 20a, 21a, est fixée au rideau par tout moyen connu, par exemple par couture, par soudage, par collage, par pressage à chaud, etc.As shown in FIG. 7, the flexible sheets 20, 21 may each comprise a part parallel to the plane of the curtain, respectively 20a, 21a, and a bent part, respectively 20b, 21b, not parallel to the plane of the curtain. In the example shown in Figure 7, each part parallel to the plane of the curtain 20a, 21a, made with the corresponding bent part 20b, 21b, an angle substantially equal to 90 °. However, this angle can be different from 90 °, provided that it is not equal to 180 °. Each part parallel to the plane of the curtain 20a, 21a, is fixed to the curtain by any known means, for example by sewing, welding, gluing, hot pressing, etc.

En variante, comme représenté sur la figure 8, les feuilles 20, 21 peuvent être fixées l'une à l'autre au voisinage de la jonction 22 entre leurs parties parallèles au rideau et leurs parties coudées. Eventuellement, les feuilles 20, 21 peuvent ainsi être formées en une seule pièce.As a variant, as shown in FIG. 8, the sheets 20, 21 can be fixed to one another in the vicinity of the junction 22 between their parts parallel to the curtain and their bent parts. Optionally, the sheets 20, 21 can thus be formed in one piece.

Comme représenté sur la figure 5, les parties coudées 20b, 21b de chaque feuille souple 20, 21, peuvent comporter des fentes horizontales 23, réparties sur la hauteur du bord latéral 4a du rideau. On facilite ainsi la déformation du rideau 4 hors de son plan, par exemple lorsque le rideau 4 doit être enroulé lorsqu'il est relevé. Comme représenté sur la figure 6, le rideau 4 s'enroule alors sur un rouleau 24 rotatif autour d'un axe 11. Il peut être avantageux que la largeur du rouleau 24 soit égale ou légèrement inférieure à la largeur du rideau 4 lui-même, de façon que les parties coudées 20b, 21b des feuilles souples 20, 21 s'enroulement à l'extérieur des extrémités axiales 25 dudit rouleau 24. On évite ainsi que lesdites parties coudées 20b, 21b ne créent des surépaisseurs locales dans l'enroulement du rideau.As shown in Figure 5, the bent portions 20b, 21b of each flexible sheet 20, 21, may include horizontal slots 23, distributed over the height of the side edge 4a of the curtain. This facilitates the deformation of the curtain 4 out of its plane, for example when the curtain 4 must be rolled up when it is raised. As shown in Figure 6, the curtain 4 is then wound on a roller 24 rotatable about an axis 11. It may be advantageous that the width of the roller 24 is equal to or slightly less than the width of the curtain 4 itself , so that the bent parts 20b, 21b of the flexible sheets 20, 21 wind up outside the axial ends 25 of said roller 24. This prevents said bent parts 20b, 21b from creating local excess thicknesses in the winding of the curtain.

La figure 9 représente la disposition du bord latéral 4a de la figure 7 lorsqu'il est inséré dans une glissière constituée par un étranglement 7 d'un montant latéral 1. Tant que le rideau 4 ne subit aucune sollicitation perpendiculairement à son plan, le bord latéral 4a ne subit aucune force de traction vers l'intérieur de la baie 5. Dans l'exemple représenté sur la figure 9, les parties coudées 20b, 21b des feuilles souples 20, 21 sont légèrement déformées vers l'extérieur de la baie 5, de façon que leur extrémité libre respective 20c, 21c soit en contact élastique contre l'étranglement 7 du montant. Ainsi, lesdites feuilles 20, 21 réalisent un contact étanche entre le rideau 4 et les montants latéraux 1, 2, sans que les frottements entre lesdites feuilles 20, 21 et l'étranglement 7 soient importants. En effet, lorsque le rideau 4 est relevé, lesdites feuilles 20, 21 ne frottent contre l'étranglement 7 que par leurs extrémités libres 20c, 21c, de sorte que la surface de frottement est limitée.FIG. 9 represents the arrangement of the lateral edge 4a of FIG. 7 when it is inserted into a slide formed by a constriction 7 of a lateral upright 1. As long as the curtain 4 is not subjected to any stress perpendicular to its plane, the edge lateral 4a does not undergo any pulling force towards the interior of the opening 5. In the example shown in FIG. 9, the bent parts 20b, 21b of the flexible sheets 20, 21 are slightly deformed towards the outside of the opening 5 , so that their respective free end 20c, 21c is in elastic contact against the throttle 7 of the upright. Thus, said sheets 20, 21 make a sealed contact between the curtain 4 and the lateral uprights 1, 2, without the friction between said sheets 20, 21 and the constriction 7 being significant. Indeed, when the curtain 4 is raised, said sheets 20, 21 rub against the constriction 7 only by their free ends 20c, 21c, so that the friction surface is limited.

Il est éventuellement possible de prévoir que lorsque le rideau 4 ne subit aucune sollicitation, les feuilles souples 20, 21 ne soient pas du tout en contact avec l'étranglement 7. En effet, comme représenté sur la figure 10, dès qu'il existe entre les deux faces du rideau 4 une différence de pression d'air, due par exemple au vent, au maintien d'une pièce en surpression, ou au maintien d'une pièce en dépression, le rideau 4 subit une force de traction dirigée vers l'intérieur de la baie 5. De ce fait, les feuilles souples 20, 21 sont tirées par le rideau 4 vers l'intérieur de la baie 5, de sorte que leurs parties coudées 20b, 21b s'appliquent de façon étanche contre l'étranglement 7 de chaque montant 1, 2. Ainsi, la porte selon l'invention assure qu'il n'existe sensiblement aucun passage d'air important au travers de la baie 5 lorsque le rideau 4 est baissé.It is possibly possible to provide that when the curtain 4 does not undergo any stress, the flexible sheets 20, 21 are not at all in contact with the constriction 7. In fact, as shown in FIG. 10, as soon as there is between the two faces of the curtain 4 a difference in air pressure, due for example to the wind, to the maintenance of a part in overpressure, or to the maintenance of a part in depression, the curtain 4 undergoes a tensile force directed towards inside the opening 5. As a result, the flexible sheets 20, 21 are drawn by the curtain 4 towards the inside of the opening 5, so that their bent parts 20b, 21b are applied in a sealed manner against the 'throttle 7 of each upright 1, 2. Thus, the door according to the invention ensures that there is substantially no significant passage of air through the opening 5 when the curtain 4 is lowered.

Lorsqu'il existe une différence de pression d'air entre les deux faces du rideau 4, les feuilles souples 20, 21 s'appuient contre l'étranglement 7 avec une force élastique importante, et la surface de contact entre lesdites feuilles souples et l'étranglement 7 est éventuellement plus importante. De ce fait, les frottements entre lesdites feuilles souples 20, 21 et l'étranglement 7 augmentent. Mais on remarquera que, lorsqu'on relève le rideau, la pression entre ces deux faces tend à s'égaliser, du fait que l'air peut passer en dessous du rideau. Le rideau tend alors à reprendre la forme représentée sur la figure 9, où les frottements entre les feuilles souples 20, 21 et l'étranglement 7 sont diminués, ou éventuellement supprimés. On limite ainsi la consommation d'énergie pendant la manoeuvre du rideau 4.When there is a difference in air pressure between the two faces of the curtain 4, the flexible sheets 20, 21 bear against the constriction 7 with a significant elastic force, and the contact surface between said flexible sheets and the 'throttle 7 is possibly more important. As a result, the friction between said flexible sheets 20, 21 and the constriction 7 increases. However, it will be noted that, when the curtain is raised, the pressure between these two faces tends to equalize, because the air can pass below the curtain. The curtain then tends to resume the shape shown in Figure 9, where the friction between the flexible sheets 20, 21 and the constriction 7 is reduced, or possibly eliminated. This limits energy consumption during the operation of the curtain 4.

En cas de choc suffisamment brutal contre le rideau 4, du fait de la souplesse des feuilles 20, 21, les parties coudées 20b, 21b desdites feuilles tendent à se placer dans le prolongement du rideau 4, comme représenté sur la figure 11, ce qui permet au bord latéral 4a du rideau de sortir de l'étranglement 7. On évite ainsi que le rideau ne soit endommagé.In the event of a sufficiently brutal impact against the curtain 4, due to the flexibility of the sheets 20, 21, the bent portions 20b, 21b of the said sheets tend to be placed in the extension of the curtain 4, as shown in FIG. 11, which allows the side edge 4a of the curtain to come out of the constriction 7. This prevents the curtain from being damaged.

En outre, si une partie d'un bord latéral 4a du rideau 4 n'est pas totalement sortie de la fente 8 délimitée par l'étranglement 7, ledit bord latéral 4a ne reste pas coincé dans la fente 8. En effet, l'épaisseur cumulée des feuilles souples 20, 21 est inférieure à la largeur la fente 8. Ainsi, si une partie d'un bord latéral 4a du rideau 4 reste dans la fente 8, ceci n'empêche pas le relevage du rideau 4. On est donc certain que la porte ne reste pas bloquée en position fermée après un choc, ce qui serait très gênant dans l'exploitation d'une installation industrielle.In addition, if part of a lateral edge 4a of the curtain 4 has not completely come out of the slot 8 delimited by the throttle 7, said lateral edge 4a does not remain trapped in the slot 8. In fact, the cumulative thickness of the flexible sheets 20, 21 is less than the width of the slot 8. Thus, if part of a lateral edge 4a of the curtain 4 remains in the slot 8, this does not prevent the curtain 4 from being raised. therefore certain that the door does not remain blocked in the closed position after an impact, which would be very inconvenient in the operation of an industrial installation.

Comme représenté sur la figure 16, les parties coudées 20b, 21b des feuilles souples 20, 21 peuvent comporter des nervures 27 parallèles au bord latéral 4a du rideau. Ces nervures 27 sont dirigées vers l'étranglement 7 du montant latéral et sont adaptées à s'appliquer élastiquement de façon étanche contre ledit étranglement 7. Ainsi, les nervures 27 limitent la surface de contact entre les feuilles souples 20, 21 et l'étranglement 7, et donc limitent aussi les frottements entre lesdites feuilles souples 20, 21 et l'étranglement 7 lors du coulissement du rideau 4.As shown in FIG. 16, the bent parts 20b, 21b of the flexible sheets 20, 21 may include ribs 27 parallel to the lateral edge 4a of the curtain. These ribs 27 are directed towards the constriction 7 of the lateral upright and are adapted to apply elastically in a sealed manner against said constriction 7. Thus, the ribs 27 limit the contact surface between the flexible sheets 20, 21 and the constriction 7, and therefore also limit the friction between said flexible sheets 20, 21 and the constriction 7 when the curtain 4 slides.

Comme représenté sur la figure 17, l'étranglement 7 de chaque montant 1, 2 peut éventuellement comporter des nervures 28 parallèles au bord latéral 4a dudit rideau et dirigées vers les feuilles 20, 21 dudit bord latéral 4a, de chaque côté du plan du rideau 4. Ces nervures 28 ont aussi pour effet de limiter les frottements entre l'étranglement 7 et lesdites feuilles 20, 21 lors du coulissement du rideau 4. En outre, on peut avantageusement prévoir à la fois lesdites nervures 28 sur l'étranglement 7 et lesdites nervures 27 sur les feuilles souples 20, 21. On augmente ainsi la force de traction qu'il est nécessaire d'appliquer au rideau 4 pour faire sortir les bords latéraux 4a dudit rideau des étranglements 7. Les nervures 28 de l'étranglement 7 peuvent être formées d'une seule pièce avec ledit étranglement 7, comme représenté sur la figure 17, ou bien, comme représenté sur la figure 18, les nervures 28 peuvent être des joints en caoutchouc ou en un autre matériau souple, rapportés sur l'étranglement 7.As shown in FIG. 17, the constriction 7 of each upright 1, 2 may optionally include ribs 28 parallel to the lateral edge 4a of said curtain and directed towards the sheets 20, 21 of said lateral edge 4a, on each side of the plane of the curtain 4. These ribs 28 also have the effect of limiting the friction between the constriction 7 and said sheets 20, 21 during the sliding of the curtain 4. In addition, it is advantageous to provide both said ribs 28 on the constriction 7 and said ribs 27 on the flexible sheets 20, 21. This increases the tensile force which it is necessary to apply to the curtain 4 to cause the lateral edges 4a of said curtain to throttle 7. The ribs 28 of the throttle 7 may be formed in one piece with said constriction 7, as shown in FIG. 17, or else, as shown in FIG. 18, the ribs 28 may be seals made of rubber or of another flexible material, attached to the throttling 7.

Comme représenté sur la figure 19, il peut être avantageux que les parties coudées 20b, 21b, comportent au voisinage de leurs extrémités libres respectives 20c, 21c des galets adaptés à rouler verticalement contre l'étranglement 7, en maintenant un écartement entre lesdites parties coudées 20b, 21b et l'étranglement 7, lorsqu'aucune force de traction n'est appliquée au rideau 4. Dans cette configuration, il n'y a pas de contact étanche entre les feuilles souples 20, 21 et l'étranglement 7 de chaque montant latéral de la porte. Grâce aux galets 29, on supprime sensiblement tout frottement entre les feuilles souples 20, 21 et l'étranglement 7 de chaque montant latéral du rideau, ce qui entraîne un gain appréciable en énergie. Comme représenté sur la figure 20, dès qu'il se produit une différence de pression ambiante entre les deux faces du rideau, qui pourrait entraîner un passage d'air sur les côtés dudit rideau, cette différence de pression se traduit par une déformation du rideau qui entraîne une force de traction sur le rideau 4, dirigée vers l'intérieur de la baie 5. De ce fait, les feuilles souples 20, 21 sont déplacées vers l'intérieur de la baie 5, de sorte que les parties coudées 20b, 21b desdites feuilles souples 20, 21 viennent en contact étanche avec l'étranglement 7 sur les bords de la fente 8. Il n'y a donc jamais de passage d'air entre les bords latéraux du rideau 4 et les montants 1, 2.As shown in FIG. 19, it may be advantageous for the bent parts 20b, 21b, to have in the vicinity of their respective free ends 20c, 21c rollers adapted to roll vertically against the throttle 7, while maintaining a spacing between said bent parts 20b, 21b and the constriction 7, when no tensile force is applied to the curtain 4. In this configuration, there is no sealed contact between the flexible sheets 20, 21 and the constriction 7 of each side door jamb. Thanks to the rollers 29, any friction between the flexible sheets 20, 21 and the constriction 7 of each lateral upright of the curtain is substantially eliminated, which results in an appreciable gain in energy. As shown in FIG. 20, as soon as there is an ambient pressure difference between the two faces of the curtain, which could cause an air passage on the sides of said curtain, this pressure difference results in a deformation of the curtain which causes a pulling force on the curtain 4, directed towards the inside of the opening 5. As a result, the flexible sheets 20, 21 are moved towards the inside of the opening 5, so that the bent parts 20b, 21b of said flexible sheets 20, 21 come into tight contact with the constriction 7 on the edges of the slot 8. There is therefore never an air passage between the lateral edges of the curtain 4 and the uprights 1, 2.

Comme représenté sur la figure 21, en variante, les galets 29 pourraient être disposés sur l'étranglement 7 au lieu d'être disposés sur les parties coudées 20b, 21b desdites feuilles souples 20, 21.As shown in FIG. 21, as a variant, the rollers 29 could be arranged on the constriction 7 instead of being disposed on the bent parts 20b, 21b of said flexible sheets 20, 21.

Selon une autre variante, représentée sur la figure 15, les galets 29 pourraient être remplacés par des patins de glissement 30, qui peuvent être disposés sur les parties coudées 20b, 21b des feuilles souples 20, 21, au voisinage de leurs extrémités libres respectives 20c, 21c. En variante, les patins de glissement 30 peuvent être disposés sur l'étranglement 7, comme les galets de la figure 21.According to another variant, shown in FIG. 15, the rollers 29 could be replaced by sliding shoes 30, which can be arranged on the bent parts 20b, 21b of the flexible sheets 20, 21, in the vicinity of their respective free ends 20c , 21c. As a variant, the sliding pads 30 can be arranged on the constriction 7, like the rollers of FIG. 21.

Comme représenté sur la figure 12, au lieu de comporter deux feuilles souples élastiques 20 et 21 disposées de chaque côté du plan du rideau 4, le bord latéral 4a du rideau peut être fixé à une seule feuille souple élastique 26 formée en boucle et s'étendant longitudinalement le long du bord latéral 4a du rideau. La feuille souple 26 comporte deux extrémités 26a et 26b qui sont fixées au bord latéral 4a du rideau, par tout moyen connu. Au voisinage du bord du rideau 4, la feuille souple 26 s'écarte du plan du rideau 4, de chaque côté dudit plan du rideau 4, de sorte que le bord latéral 4a du rideau présente localement une section en forme de Y, comme il a été vu précédemment. Le rideau 4 représenté sur la figure 12 se comporte donc exactement de la même façon que le rideau décrit précédemment, et il est susceptible des mêmes variantes.As shown in FIG. 12, instead of having two elastic flexible sheets 20 and 21 arranged on each side of the plane of the curtain 4, the lateral edge 4a of the curtain can be fixed to a single elastic flexible sheet 26 formed in a loop and s' extending longitudinally along the lateral edge 4a of the curtain. The flexible sheet 26 has two ends 26a and 26b which are fixed to the lateral edge 4a of the curtain, by any known means. In the vicinity of the edge of the curtain 4, the flexible sheet 26 departs from the plane of the curtain 4, on each side of said plane of the curtain 4, so that the lateral edge 4a of the curtain locally has a Y-shaped section, as it was previously seen. The curtain 4 shown in Figure 12 therefore behaves in exactly the same way as the curtain described above, and it is capable of the same variants.

Comme représenté sur la figures 13 et 14, lorsque le rideau 4 comporte des barres horizontales 6 de renforcement qui coulissent dans les montants latéraux 1, 2, ces barres sont généralement enfilées dans des fourreaux formés dans le rideau 4. De ce fait, il peut être difficile de fixer des feuilles souples élastiques telles que vues précédemment au bord latéral du rideau 4 au niveau des barres 6. En effet, si cette fixation se fait par exemple par couture ou par pressage à chaud, elle risque d'obstruer localement les fourreaux destinés à recevoir les barres 6. Pour éviter cet inconvénient, on peut utiliser la solution représentée sur la figure 13. Sur la figure 13, le bord latéral 4a du rideau comporte une seule feuille souple 26 formée en boucle et fixée par ses deux extrémités 26a aux bords du rideau 4. La feuille 26 s'étend le long du bord latéral 4a du rideau, mais elle est interrompue au niveau de chaque barre horizontale 6. Afin d'éviter une perte d'étanchéité au niveau de chaque barre horizontale 6, on emmanche à chaque extrémité 6a des barres 6, des joints 31, dont un est représenté sur la figure 14. Chaque joint 31 comporte une partie avant 32 adaptée à s'emboîter sur l'extrémité 6a de la barre 6, et une partie arrière 33 qui peut comporter deux feuilles souples élastiques 34, 35 s'étendant à partir de la partie avant 32 vers l'extérieur du rideau 4, en divergeant de chaque côté du plan du rideau 4. La partie arrière 33 est adaptée à s'appliquer de façon étanche contre l'étranglement 7 de la glissière dans laquelle coulisse le bord latéral 4a du rideau. Au lieu de comporter deux feuilles souples 34, 35, la partie arrière 33 pourrait comporter une seule feuille souple formée en boucle et fixée à ses deux extrémités à la partie avant 32. Dans l'exemple représenté sur la figure 14, la partie avant 32 du joint 31 comporte deux feuilles élastiques 35, 36 réunies à une extrémité arrière 37, et qui sont adaptées à s'emmancher sur les barres latérales 6 et le rideau 4 à partir du bord latéral 4a du rideau, en serrant élastiquement lesdites barres 6 et ledit rideau 4.As shown in FIGS. 13 and 14, when the curtain 4 has horizontal reinforcing bars 6 which slide in the lateral uprights 1, 2, these bars are generally threaded in sheaths formed in the curtain 4. As a result, it can be difficult to fix flexible elastic sheets as seen above at the lateral edge of the curtain 4 at the level of the bars 6. In fact, if this fixing is done for example by sewing or by hot pressing, it risks locally obstructing the sleeves intended to receive the bars 6. To avoid this drawback, the solution shown in FIG. 13 can be used. In FIG. 13, the lateral edge 4a of the curtain comprises a single flexible sheet 26 formed in a loop and fixed by its two ends 26a at the edges of the curtain 4. The sheet 26 extends along the side edge 4a of the curtain, but it is interrupted at each horizontal bar 6. In order to avoid loss of anchored at each horizontal bar 6, at each end 6a there are bars 6, seals 31, one of which is shown in FIG. 14. Each seal 31 has a front part 32 adapted to fit onto the end 6a of the bar 6, and a rear part 33 which may comprise two elastic flexible sheets 34, 35 extending from the front part 32 towards the outside of the curtain 4, diverging on each side of the plane of the curtain 4. The rear part 33 is adapted to be applied in a sealed manner against the constriction 7 of the slide in which the lateral edge 4a of the curtain slides. Instead of having two flexible sheets 34, 35, the rear part 33 could comprise a single flexible sheet formed in a loop and fixed at its two ends to the front part 32. In the example shown in FIG. 14, the front part 32 of the seal 31 comprises two elastic sheets 35, 36 joined at a rear end 37, and which are adapted to be fitted onto the side bars 6 and the curtain 4 from the side edge 4a of the curtain, by elastically tightening said bars 6 and said curtain 4.

Claims (12)

Porte à rideau souple relevable (4) pour obturer une baie (5), comportant deux montants latéraux ayant chacun une glissière formant un étranglement (7), le rideau (4) formant sensiblement un plan et comportant des bords latéraux (4a) qui coulissent dans ledit étranglement (7) et qui sont dotés de reliefs saillant hors du plan du rideau, lesdits reliefs étant disposés de façon sensiblement continue le long des bords latéraux (4a) du rideau et étant adaptés à s'appliquer de façon sensiblement étanche contre l'étranglement (7) des glissières au moins lorsque le rideau (4) subit une force de traction dirigée vers l'intérieur de la baie (5), lesdits reliefs ayant une souplesse suffisante pour traverser ledit étranglement (7) lorsque ladite force de traction dépasse une valeur déterminée, caractérisée en ce que lesdits reliefs sont constitués par un matériau souple élastique en feuille (20, 21; 26) solidaire des bords latéraux (4a) du rideau, et ledit matériau en feuille s'étend en divergeant à partir de chaque bord latéral (4a) du rideau, de chaque côté du plan du rideau, de façon que ledit matériau en feuille (20, 21; 26) puisse s'aplatir élastiquement sensiblement dans le plan du rideau lorsque lesdits reliefs traversent ledit étranglement.Door with flexible liftable curtain (4) for closing a bay (5), comprising two lateral uprights each having a slide forming a constriction (7), the curtain (4) substantially forming a plane and comprising lateral edges (4a) which slide in said constriction (7) and which have reliefs projecting out of the plane of the curtain, said reliefs being arranged substantially continuously along the lateral edges (4a) of the curtain and being adapted to be applied in a substantially sealed manner against the 'throttle (7) of the slides at least when the curtain (4) undergoes a tensile force directed towards the inside of the opening (5), said reliefs having sufficient flexibility to pass through said constriction (7) when said tensile force exceeds a determined value, characterized in that said reliefs consist of a flexible elastic sheet material (20, 21; 26) secured to the lateral edges (4a) of the curtain, and said material sheet extends diverging from each side edge (4a) of the curtain, on each side of the plane of the curtain, so that said sheet material (20, 21; 26) can flatten elastically substantially in the plane of the curtain when said reliefs pass through said constriction. Porte selon la revendication 1, dans laquelle sur chaque bord latéral (4a) du rideau, ledit matériau en feuille est constitué par deux feuilles latérales (20, 21) solidaires chacune dudit bord latéral (4a) du rideau, et s'étendant chacune d'un côté du plan du rideau (4) en divergeant à partir du bord latéral (4a) du rideau.Door according to claim 1, in which on each lateral edge (4a) of the curtain, said sheet material consists of two lateral sheets (20, 21) each integral with said lateral edge (4a) of the curtain, and each extending d 'one side of the plane of the curtain (4) diverging from the side edge (4a) of the curtain. Porte selon la revendication 1, dans laquelle sur chaque bord latéral (4a) du rideau, ledit matériau en feuille est constitué par une seule feuille (26) formée en boucle, qui constitue un bourrelet creux solidaire du bord latéral (4a) du rideau.Door according to claim 1, in which on each lateral edge (4a) of the curtain, said sheet material consists of a single sheet (26) formed in a loop, which constitutes a hollow bead secured to the lateral edge (4a) of the curtain. Porte selon une quelconque des revendications 1 à 3, dans laquelle ledit matériau en feuille (20, 21 ; 26) s'étend de façon continue le long de chaque bord latéral (4a) du rideau.A door according to any of claims 1 to 3, wherein said sheet material (20, 21; 26) extends continuously along each side edge (4a) of the curtain. Porte selon une quelconque des revendications 1 à 3, dans laquelle ledit matériau en feuille (20, 21 ; 26) comporte des découpes horizontales pour faciliter la déformation du rideau hors de son plan, par exemple lors d'un enroulement sur un axe pendant la remontée du rideau.Door according to any one of claims 1 to 3, in which said sheet material (20, 21; 26) has horizontal cutouts to facilitate the deformation of the curtain out of its plane, for example during winding on an axis during the curtain rise. Porte selon une quelconque des revendications précédentes, dans laquelle ledit étranglement (7) de la glissière de chaque montant (1, 2) comporte des nervures (28) dirigées vers ledit matériau en feuille (20, 21 ; 26), qui s'étendent continûment parallèlement au bord latéral (4a) du rideau, et qui sont adaptées à s'appliquer en contact sensiblement étanche contre ledit matériau en feuille, au moins lorsque le rideau (4) subit une force de traction dirigée vers l'intérieur de la baie (5).Door according to any one of the preceding claims, in which said throttle (7) of the slide of each upright (1, 2) has ribs (28) directed towards said sheet material (20, 21; 26), which extend continuously parallel to the lateral edge (4a) of the curtain, and which are adapted to be applied in substantially sealed contact against said sheet material, at least when the curtain (4) undergoes a tensile force directed towards the interior of the opening (5). Porte selon une quelconque des revendications précédentes, dans laquelle sur chaque bord latéral (4a) du rideau, ledit matériau en feuille (20, 21 ; 26) comporte des nervures (27) dirigées vers l'étranglement (7) de la glissière du montant, qui s étendent de façon continue parallèlement au bord latéral (4a) du rideau et qui sont adaptées à s'appliquer en contact étanche contre ledit étranglement (7), au moins lorsque le rideau (4) subit une force de traction dirigée vers l'intérieur de la baie (5).Door according to any one of the preceding claims, in which on each lateral edge (4a) of the curtain, said sheet material (20, 21; 26) has ribs (27) directed towards the throttle (7) of the rail of the upright , which extend continuously parallel to the lateral edge (4a) of the curtain and which are adapted to be applied in sealed contact against said constriction (7), at least when the curtain (4) is subjected to a tensile force directed towards the inside the bay (5). Porte selon une quelconque des revendications précédentes, dans laquelle sur chaque bord latéral (4a) du rideau, ledit matériau en feuille (20, 21 ; 26) comporte des reliefs (27 ; 29 ; 30) faisant face à l'étranglement (7) de la glissière du montant, et ledit étranglement (7) comporte des reliefs (28 ; 29 ; 30) contre lesquels lesdits reliefs du matériau en feuille viennent buter lorsque le rideau (4) subit une force de traction dirigée vers l'intérieur de la baie (5).Door according to any one of the preceding claims, in which on each lateral edge (4a) of the curtain, said sheet material (20, 21; 26) has reliefs (27; 29; 30) facing the constriction (7) of the upright slide, and said constriction (7) includes reliefs (28; 29; 30) against which said reliefs of the sheet material abut when the curtain (4) is subjected to a traction force directed towards the interior of the bay (5). Porte selon une quelconque des revendications 1 à 5, dans laquelle ledit étranglement (7) de la glissière de chaque montant (1, 2) comporte des patins de glissement (30) disposés à une certaine distance de chaque côté du plan du rideau (4), en regard du matériau en feuille.Door according to any one of claims 1 to 5, in which said constriction (7) of the slide of each upright (1, 2) comprises sliding pads (30) arranged at a certain distance on each side of the plane of the curtain (4 ), opposite the sheet material. Porte selon une quelconque des revendications 1 à 5, dans laquelle ledit étranglement (7) de la glissière de chaque montant (1, 2) comporte des moyens de roulement (29) disposés à une certaine distance de chaque côté du plan du rideau (4), en regard du matériau en feuille.Door according to any one of claims 1 to 5, in which said constriction (7) of the slide of each upright (1, 2) comprises rolling means (29) arranged at a certain distance on each side of the plane of the curtain (4 ), opposite the sheet material. Porte selon une quelconque des revendications 1 à 5, dans laquelle ledit matériau en feuille comporte des patins de glissement (30) disposés à une certaine distance de chaque côté du plan du rideau (4), en regard de l'étranglement (7) de la glissière de chaque montant latéral (1, 2).Door according to any one of claims 1 to 5, in which said sheet material comprises sliding pads (30) arranged at a certain distance on each side of the plane of the curtain (4), opposite the constriction (7) of the slide of each lateral upright (1, 2). Porte selon une quelconque des revendications 1 à 5, dans laquelle ledit matériau en feuille comporte des moyens de roulement (29) disposés à une certaine distance de chaque côté du plan du rideau (4), en regard de l'étranglement (7) de la glissière de chaque montant latéral (1, 2).Door according to any one of Claims 1 to 5, in which the said sheet material comprises rolling means (29) arranged at a certain distance on each side of the plane of the curtain (4), opposite the constriction (7) of the slide of each lateral upright (1, 2).
EP93401176A 1991-11-06 1993-05-07 Overhead industrial door with improved lateral sealing Withdrawn EP0623731A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9113682A FR2683258A1 (en) 1991-11-06 1991-11-06 Warehouse door with roll-up shutter providing improved lateral sealing
EP93401176A EP0623731A1 (en) 1991-11-06 1993-05-07 Overhead industrial door with improved lateral sealing
CA002097991A CA2097991A1 (en) 1991-11-06 1993-06-08 Raisable-curtain goods-handling door with improved lateral sealing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9113682A FR2683258A1 (en) 1991-11-06 1991-11-06 Warehouse door with roll-up shutter providing improved lateral sealing
EP93401176A EP0623731A1 (en) 1991-11-06 1993-05-07 Overhead industrial door with improved lateral sealing
CA002097991A CA2097991A1 (en) 1991-11-06 1993-06-08 Raisable-curtain goods-handling door with improved lateral sealing

Publications (1)

Publication Number Publication Date
EP0623731A1 true EP0623731A1 (en) 1994-11-09

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Application Number Title Priority Date Filing Date
EP93401176A Withdrawn EP0623731A1 (en) 1991-11-06 1993-05-07 Overhead industrial door with improved lateral sealing

Country Status (3)

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EP (1) EP0623731A1 (en)
CA (1) CA2097991A1 (en)
FR (1) FR2683258A1 (en)

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FR2863646A1 (en) 2003-12-11 2005-06-17 Nergeco Sa Roll-up door for use in e.g. agro-food industry, has two lateral jambs, where each jamb has slide with sealing profile having bottom wall and two lateral walls that are supported against adjacent flanges of slide
EP1334255B2 (en) † 2000-09-25 2012-07-18 Dynaco Europe NV Shutter device for closing an aperture

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CZ292897B6 (en) * 1994-04-29 2003-12-17 Dynaco International S. A. Closure device including a flexible screen
BE1008321A3 (en) * 1994-04-29 1996-04-02 Dynaco International Sa Roller blind closure device
FR2728011B1 (en) * 1994-12-12 1997-01-24 Mavil IMPROVEMENTS IN HANDLING DOOR APRON
US8037921B2 (en) 2006-06-05 2011-10-18 Rite-Hite Holding Corporation Track and guide system for a door
US7748431B2 (en) 2006-06-05 2010-07-06 Rite-Hite Holding Corporation Track and guide system for a door

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EP0264220A1 (en) * 1986-10-15 1988-04-20 Clark Door Limited Improvements in and relating to roller door assemblies
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EP0033199A1 (en) * 1980-01-15 1981-08-05 Glenn Robert Palmer Door structure
EP0264220A1 (en) * 1986-10-15 1988-04-20 Clark Door Limited Improvements in and relating to roller door assemblies
EP0412714A2 (en) * 1989-08-08 1991-02-13 METACO Co., Ltd. Roller screen unit
US5117892A (en) * 1990-06-22 1992-06-02 Murray Alan C Window shade track construction
NL9001495A (en) * 1990-06-29 1992-01-16 Hct Engineering B V Window roller blind arrangement - has drum ends of smaller dia., then drum centre section

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1334255B2 (en) † 2000-09-25 2012-07-18 Dynaco Europe NV Shutter device for closing an aperture
CZ305425B6 (en) * 2000-09-25 2015-09-16 Dynaco Europe N.V. Shutter device for closing an aperture
FR2863646A1 (en) 2003-12-11 2005-06-17 Nergeco Sa Roll-up door for use in e.g. agro-food industry, has two lateral jambs, where each jamb has slide with sealing profile having bottom wall and two lateral walls that are supported against adjacent flanges of slide
WO2005059292A1 (en) * 2003-12-11 2005-06-30 Nergeco Door provided with a curtain which is raisable by winding and has an improved lateral tightness

Also Published As

Publication number Publication date
FR2683258A1 (en) 1993-05-07
CA2097991A1 (en) 1994-12-09

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