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EP2118425B1 - Device with a flexible shutter which may be wound on a drum - Google Patents

Device with a flexible shutter which may be wound on a drum Download PDF

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Publication number
EP2118425B1
EP2118425B1 EP08708647A EP08708647A EP2118425B1 EP 2118425 B1 EP2118425 B1 EP 2118425B1 EP 08708647 A EP08708647 A EP 08708647A EP 08708647 A EP08708647 A EP 08708647A EP 2118425 B1 EP2118425 B1 EP 2118425B1
Authority
EP
European Patent Office
Prior art keywords
flap
slides
drum
roll
lateral edges
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.)
Active
Application number
EP08708647A
Other languages
German (de)
French (fr)
Other versions
EP2118425A1 (en
Inventor
BenoƮt Coenraets
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.)
Entrematic Belgium NV
Original Assignee
Dynaco Europe NV
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
Application filed by Dynaco Europe NV filed Critical Dynaco Europe NV
Priority to PL08708647T priority Critical patent/PL2118425T3/en
Priority to EP08708647A priority patent/EP2118425B1/en
Publication of EP2118425A1 publication Critical patent/EP2118425A1/en
Application granted granted Critical
Publication of EP2118425B1 publication Critical patent/EP2118425B1/en
Active legal-status Critical Current
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
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices

Definitions

  • the invention relates to a flexible shutter device for closing a bay or any type of opening, comprising drive means for moving the flexible flap between an open position and a closed position ;
  • the drive means comprise a drum rotatable about its axis, around which the flexible flap is wound in its open position by forming a roller constituted by successive turns which are hooked to each other and from which the flexible flap can be unrolled and pushed to its closed position.
  • the device also comprises slides mounted on a fixed support for guiding along the bay of the part of the lateral edge of the unwound flap, the flexible flap comprising substantially incompressible lateral edges salient with respect to the plane of the lateral edge of the flap and substantially continuous moving in the slides.
  • the device according to the invention can for example be used in buildings, or trucks or as cover of pools or boats.
  • Devices for closing a bay having a drum around which a flexible flap is wound in its open position are known.
  • the shutter is unwound by rotating the drum about its axis, so that the flap down by closing the bay while the side edges of the latter are guided in two guideways or rails extending parallel to each other.
  • a thrust force is exerted on the lateral edges of the shutter by means of the turns, which are hooked to each other, in their longitudinal direction, thereby pushing the lateral edges of the shutter to move in the slides.
  • the diameter of the roll formed around the drum varies according to the position of the flap, it forms a free space between the upper ends of the slides closest to the drum and the roller. Thus part of the side edges of the flap is not maintained by the slides. Given the flexible nature of the flap, this non-maintained portion of the flap, easily deformable and foldable, can quickly become uncontrollable.
  • An object of the invention is to overcome these disadvantages by having a shutter device which is closed in a controlled manner by ensuring that the side edges of the flap do not blaze that is to say do not form a fold between the roller and the upper end of the slides as it unfolds.
  • the device according to the invention is characterized in that it comprises containment elements to prevent buckling of the side edges (2,3) in their non-maintained part.
  • the confinement elements comprise a pressure element making it possible to exert a thrust force on the lateral edges of the flap at the non-maintained portion of the flap extending between a first end of the slideways and the roller, so as to obtain a radial thrust force resultant which permanently applies the lateral edges of the flexible flap, in their non-maintained part, on the pressure element.
  • a pressure element makes it possible to exert a thrust force on the lateral edges of the flap at the non-maintained portion of the flap extending between a first end of the slideways and the roller, so as to obtain a radial thrust force resultant which permanently applies the lateral edges of the flexible flap, in their non-maintained part, on the pressure element.
  • the pressure element ensures that the non-maintained portion of the flap side edges remains in abutment; this avoids fold formation between the roll formed on the drum and the end of the slides closest to the drum.
  • the confinement means comprise a rod extending in the extension of the branches before the slides.
  • the invention is as described in
  • the present invention relates to a device with a flexible flap cooperating with drive means, such as a drum whose axis is connected to the shaft of an electric motor.
  • the flexible flap moves in downward and upward movement between, respectively, a closed position and an open position, and is intended for closure of a bay in a wall or passage, such as a corridor .
  • flexible flap it is appropriate to understand, in the context of the present invention, all flexible planar element such as a tarpaulin, articulated slats, a metal sheet etc., which is provided at its lateral ends with substantially incompressible edges. It is also a component that can be wound around a drum whose axis is perpendicular to the direction of movement of the flap during opening of the latter.
  • the shutter device is shown schematically in the closed position.
  • This device comprises a flexible flap 1 with side edges 2 and 3 protruding from the plane of the flap 1.
  • the side edges 2 and 3 are advantageously formed by a continuous bead 46 (shown in detail in FIGS. Fig. 13 and 14 ) or by a succession of small teeth moving in vertical slides 4 and 5.
  • the slides 4 and 5 are provided on either side of a bay 6 which is present in a wall 7.
  • a drum 8 on which the flexible flap 1 can be wound.
  • an electric motor 9 which drives the drum 8 about its axis 11. This allows to wind the flap 1 on the drum 8 to bring it into the open position or to unroll the shutter 1 to its closed position.
  • the lateral edges 2 and 3 thereof are guided by the slides 4 and 5.
  • a transparent window 10 may be provided in the middle of the shutter 1.
  • the shutter 1 When the shutter 1 is opened, it is wound around the drum 8 by forming a roll consisting of turns formed by successive superimposed layers of the shutter 1.
  • the Figures 3, 4 and 5 show a shutter device according to the prior art.
  • the flap 1 is unwound by rotating the drum 8 about its axis, so that the shutter 1 goes down by closing the bay 6 while the lateral edges 2,3 of the latter are guided in the two slides 4.5 straight s extending parallel to each other.
  • a thrust force is exerted on the lateral edges 2, 3 of the shutter 1 in their longitudinal direction.
  • Each of the slides 4, 5 has a U-shaped section, the central portion 40 is leaned against the structure of the bay 6, the opening of the U of a slide 4 being directed towards the opening of the other slide 5 .
  • Each U-shaped slider 4, 5 has a branch 42 which extends rearwards towards the wall 7, and another branch 44 which extends forwardly towards the drum 8. Fig. 11 and 14 )
  • the drum 8 is held in abutment against the structure of the wall 7 by means of springs 20 directed along a substantially horizontal axis.
  • the figures 3 and 5 present the case when when closing the bay 6, the descent of the shutter 1 along the slides 4,5 is blocked by an obstacle or by friction due to the force of the wind.
  • the drum 8 is always rotated and the flap 1 continues to unwind by creating an excess flap 1 between the roll and the upper end 30 of the slides 4,5.
  • Part of the excess of the flap 1 remains wound on the drum 8 in particular because of the presence of the attachment teeth for holding the turns together; the remainder of the excess forms a fold 15 in the portion of the flap 1 not maintained, that is to say in the space between the roller 8 and the upper end 30 of the slides 4, 5.
  • the flap 1 folds in its part not maintained directly at the exit of the slides 4,5; this fold prevents the flap from entering the slides 4.5. It is necessary to stop the motor 9 and rewind the shutter 1 in order to absorb the fold 15 that has formed.
  • the Figures 6 to 12 show a flexible shutter device according to a first embodiment of the invention.
  • the slides 4,5 are substantially straight and vertical in most of their height.
  • the upper part of the slides 4,5 is inclined towards the wall 7 with respect to the plane formed by these same slides 4, 5.
  • the slides may have a convex boss 34 to allow them to return in the vertical plane.
  • the Fig. 9 to 14 show this guide 33 in more detail.
  • the guide 33 has a flattened U-shaped profile. This shape is adapted to the particular shape of the side edge of the flap, which has in the example shown, a protruding bead 46 (illustrated in FIGS. Fig. 13 and 14 ).
  • the guide 33 constitutes a pressure element which makes it possible to exert a thrust force (illustrated by arrows on the Fig. 12 ) at the place where, during the winding of the shutter 1, the surface of the part of the shutter 1 which is not yet wound comes into contact with the portion of the shutter 1 which already forms turns around the drum 8.
  • the guide 33 keeps the turns adjacent to each other.
  • the guide 33 exerts pressure on these gripping teeth in order to fix the successive turns of the flap to one another when winding the latter around the drum. 8.
  • the guide 33 is held in abutment against the wall 7 by means of a support element 18.
  • the support element 18 is provided at the place where, during the winding of the shutter 1, the surface the part of the shutter 1 which is not yet wound comes into contact with the portion of the shutter 1 which already forms turns around the drum 8. Fig. 6 to 8 )
  • the pressure element 33 makes it possible to exert a thrust force on the lateral edges 2, 3 of the shutter 1 at the non-maintained portion of the shutter 1 extending between the upper end 30 of the slides 4.5 and the roller, so as to obtain a resultant radial thrust force which permanently applies the lateral edges of the flap, in the non-maintained part, on the pressure element (33).
  • the end 30 thus makes it possible to guide the flap 1 at the outlet of the slides 4,5 so as to form a curvature 33 in the non-maintained part of the flap 1.
  • the curvature 33 of the flap 1 in its non-maintained part is concave with respect to drum 8 ( Fig. 12 ).
  • the slides have, in the illustrated manner, a curvature 34 opposite the curvature 33 so as to recover the straight plane of the slides 4,5 in their lower part.
  • the surplus flap 1 which would be formed in its non-maintained portion in case of friction in the slides 4,5 during the unwinding of the flap 1, is "absorbed" by the curvature 33 of the flap 1 in his part not maintained. Indeed, since it is very difficult to reverse a curvature in a flexible flap, it avoids buckling and the formation of a fold (as in the case of Fig. 3 ) in the non-maintained part of the flap edges. This is shown in the figure 12 .
  • the upper end 30 of the slides 4, 5 comes close to the last turn of the flap wound on the drum 8.
  • a space may appear between the upper end 30 of the slides and the last wound coil. In this space the lateral edges 2, 3 of the shutter are not maintained.
  • the Fig. 15 to 23 represent four variants of execution.
  • the drum 8 is no longer movable along a substantially horizontal axis but is held in a fixed manner.
  • the device comprises a movable support structure 50 which keeps the guide 33 in permanent contact with the last turn wound on the drum 8 whatever the open or closed state of the device, that is to say whatever the volume of the roll.
  • the guide 33 mainly provides a sliding effect which limits the friction.
  • the movable support structure 50 can take different forms. To the Fig. 15 to 20 it is a substantially triangular element, pivoting about a pivot axis 52 and whose side 54 facing the drum has a concave curvature with respect to the drum 8.
  • the containment element consists of a substantially straight rod 66 which extends upwardly in the extension of the front branch 44 of each slideway 4,5.
  • This rod 66 preferably extends between the last coil wound of the roll and the not yet wound portion of the flap (1), near the side edge 2,3, just in front of the bead 46 (FIG. Fig. 23 ).
  • each slideway 4,5 is also extended upwards by a guide 60 substantially straight.
  • a reinforcement U 68 may be provided around the guide 60 and the rod 66.
  • a return system comprising springs 62 and return pulleys 64 keeps the guide 60 bearing against the roller.
  • the rod 66 may extend to a height corresponding to the point of contact between the roll and the guide 60.
  • the rod 66 does not come into contact with the flap, a slight space is maintained between the rod and the shutter on either side of the rod. If an obstacle interrupts the closure of the shutter or if a particular pressure increases the friction, the shutter, near its side edge then comes against the rod. This then prevents the shutter from flaming.
  • the present invention has been described in terms of specific embodiments which are an illustration of the invention and which should not be considered as limiting. In particular, the device has been described in a position where the flap moves in a vertical plane and in a direction from top to bottom (when closing). Of course, the position of the flap and the drum is not limiting.
  • the same device can be used in other positions, in particular, the flap can be vertical but open in a lateral direction.
  • the device according to the invention can be used in a horizontal position, for example for the cover of boats or swimming pools.
  • the upper end of the slides must be understood as the end closest to the drum; but for the sake of clarity of the disclosure with respect to Figs., it is called the upper end in the present description.
  • the device according to the invention has the advantage of closing a bay or any type of opening without any weighting of the flexible flap.

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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)

Description

Domaine de l'inventionField of the invention

L'invention se rapporte Ć  un dispositif Ć  volet flexible destinĆ© Ć  la fermeture d'une baie ou de tout type d'ouverture, comprenant des moyens d'entraĆ®nement permettant de dĆ©placer le volet flexible entre une position d'ouverture et une position de fermeture ; les moyens d'entraĆ®nement comprennent un tambour pouvant tourner autour de son axe, autour duquel le volet flexible est enroulĆ© dans sa position d'ouverture en formant un rouleau constituĆ© de spires successives s'accrochant les unes aux autres et duquel le volet flexible peut ĆŖtre dĆ©roulĆ© et poussĆ© vers sa position de fermeture. Le dispositif comprend Ć©galement des glissiĆØres montĆ©es sur un support fixe pour le guidage le long de la baie de la partie du bord latĆ©ral du volet non enroulĆ©e, le volet flexible comprenant des bords latĆ©raĆ¹x sensiblement incompressibles saillants par rapport au plan du bord latĆ©ral du volet et sensiblement continus se dĆ©plaƧant dans les glissiĆØres. Le dispositif suivant l'invention peut par exemple ĆŖtre utilisĆ© dans des bĆ¢timents, ou camions ou comme couverture de piscines ou de bateaux.The invention relates to a flexible shutter device for closing a bay or any type of opening, comprising drive means for moving the flexible flap between an open position and a closed position ; the drive means comprise a drum rotatable about its axis, around which the flexible flap is wound in its open position by forming a roller constituted by successive turns which are hooked to each other and from which the flexible flap can be unrolled and pushed to its closed position. The device also comprises slides mounted on a fixed support for guiding along the bay of the part of the lateral edge of the unwound flap, the flexible flap comprising substantially incompressible lateral edges salient with respect to the plane of the lateral edge of the flap and substantially continuous moving in the slides. The device according to the invention can for example be used in buildings, or trucks or as cover of pools or boats.

Ɖtat de la techniqueState of the art

Les dispositifs destinĆ©s Ć  la fermeture d'une baie comportant un tambour autour duquel un volet flexible est enroulĆ© dans sa position d'ouverture sont connus. Dans de tels dispositifs, le volet est dĆ©roulĆ© en faisant tourner le tambour autour de son axe, de sorte que le volet descend en fermant la baie pendant que les bords latĆ©raux de ce dernier sont guidĆ©s dans deux chemins de guidage ou glissiĆØres s'Ć©tendant parallĆØlement l'un Ć  l'autre. Par la rotation du tambour, une force de poussĆ©e est exercĆ©e sur les bords latĆ©raux du volet par l'intermĆ©diaire des spires, qui sont accrochĆ©es les unes aux autres, suivant leur direction longitudinale, poussant ainsi les bords latĆ©raux du volet Ć  se dĆ©placer dans les glissiĆØres.Devices for closing a bay having a drum around which a flexible flap is wound in its open position are known. In such devices, the shutter is unwound by rotating the drum about its axis, so that the flap down by closing the bay while the side edges of the latter are guided in two guideways or rails extending parallel to each other. By the rotation of the drum, a thrust force is exerted on the lateral edges of the shutter by means of the turns, which are hooked to each other, in their longitudinal direction, thereby pushing the lateral edges of the shutter to move in the slides.

Ces dispositifs prĆ©sentent plusieurs inconvĆ©nients. Le diamĆØtre du rouleau formĆ© autour du tambour variant selon la position du volet, il se forme un espace libre entre les extrĆ©mitĆ©s supĆ©rieures des glissiĆØres les plus proches du tambour et le rouleau. Ainsi une partie des bords latĆ©raux du volet n'est pas maintenue par les glissiĆØres. Etant donnĆ© le caractĆØre flexible du volet, cette partie non maintenue du volet, facilement dĆ©formable et pliable, peut devenir rapidement incontrĆ“lable.These devices have several disadvantages. The diameter of the roll formed around the drum varies according to the position of the flap, it forms a free space between the upper ends of the slides closest to the drum and the roller. Thus part of the side edges of the flap is not maintained by the slides. Given the flexible nature of the flap, this non-maintained portion of the flap, easily deformable and foldable, can quickly become uncontrollable.

Pendant la fermeture du volet, la progression des bords latĆ©raux du volet dans les glissiĆØres peut ĆŖtre ralentie (frottements dus Ć  la pression de vent pouvant atteindre 160 km/h). Ces frottements s'opposent Ć  la force de poussĆ©e, exercĆ©e sur les bords latĆ©raux du volet, par la rotation du tambour. Dans ce cas, si le tambour continue Ć  ĆŖtre entraĆ®nĆ© en rotation, le volet continue Ć  se dĆ©rouler. Dans l'espace libre entre le rouleau et le bord supĆ©rieur des glissiĆØres, les bords latĆ©raux ne sont plus maintenus et risquent lorsqu'il y a poussĆ©e sur ceux-ci de former un pli et de flamber. La formation d'un tel pli empĆŖche alors tout glissement du volet dans les glissiĆØres. Il faut stopper le moteur et enrouler Ć  nouveau le volet afin d'absorber le pli qui s'est formĆ©. De plus, un tel pli peut dĆ©grader les bords latĆ©raux du volet.
L'Ć©tat de la technique est illustrĆ© ci-aprĆØs par les exemples suivants :

  • FR 344.292 dĆ©crit un volet en tĆ“le ondulĆ©e enroulable autour d'un tambour. Il ne rĆ©pond cependant pas Ć  la dĆ©finition du Ā« volet flexible Ā» donnĆ©e ultĆ©rieurement dans la prĆ©sente demande.
  • Le brevet US 3,430,677 dĆ©crit un volet renforcĆ© et lestĆ© par une pluralitĆ© de barres horizontales. Le problĆØme de flambage ne se pose pas pour ce type de volet qui est tirĆ© vers le bas par son lestage.
  • Quant au document EP 0 780 542 , il dĆ©crit un dispositif de fermeture de volet Ć  lamelles articulĆ©es comportant un boĆ®tier refermant un tambour et un mĆ©canisme d'enroulement. Le problĆØme de flambage du volet n'est pas mentionnĆ© dans ce document, bien qu'Ć  la sortie du boĆ®tier le volet ne soit pas maintenu et puisse trĆØs bien flamber sous la poussĆ©e du tambour.
  • CA 2 426 217 dĆ©crit un systĆØme de volet ainsi que des glissiĆØres dans lesquelles les bords du volet coulissent. Un systĆØme de confinement des spires sur l'enrouleur est rĆ©alisĆ© par une courroie. Lors de la fermeture du volet, des rouleaux d'entraĆ®nement poussent les bords du volet, qui ne sont plus maintenus entre les rouleaux d'entraĆ®nement et le haut des glissiĆØres. S'il y a un peu de frottement dans les glissiĆØres Ć  ce moment-lĆ , les bords pourraient flamber Ć  cet endroit, car aucun dispositif anti-flambage n'a Ć©tĆ© prĆ©vu.
During closure of the shutter, the progression of the lateral edges of the shutter in the slides can be slowed down (friction due to the wind pressure of up to 160 km / h). These rubs oppose the thrust force exerted on the lateral edges of the flap, by the rotation of the drum. In this case, if the drum continues to be rotated, the flap continues to unfold. In the free space between the roll and the upper edge of the slides, the side edges are no longer maintained and risk when there is pushing on them to form a fold and flambƩ. The formation of such a fold then prevents any sliding of the flap in the slides. You have to stop the engine and roll up the shutter again to absorb the fold that has formed. In addition, such a fold can degrade the lateral edges of the shutter.
The state of the art is illustrated below by the following examples:
  • FR 344,292 describes a flap corrugated rolled around a drum. However, it does not meet the definition of "flexible component" given later in this application.
  • The patent US 3,430,677 describes a reinforced flap and weighted by a plurality of horizontal bars. The problem of buckling does not arise for this type of flap which is pulled down by its ballast.
  • As for the document EP 0 780 542 it discloses a hinged flap closure device comprising a casing enclosing a drum and a winding mechanism. The flap buckling problem is not mentioned in this document, although at the exit of the housing the flap is not maintained and can very well flambĆ© under the pressure of the drum.
  • CA 2,426,217 describes a shutter system as well as slides in which the edges of the shutter slide. A system for confining the turns on the reel is made by a belt. When closing the shutter, drive rollers push the edges of the shutter, which are no longer held between the drive rollers and the top of the slides. If there is some friction in the slides at this time, the edges could flare up there because no anti-buckling devices were provided.

RƩsumƩ de l'inventionSummary of the invention

Un but de l'invention est de remĆ©dier Ć  ces inconvĆ©nients en prĆ©sentant un dispositif Ć  volet qui est fermĆ© d'une maniĆØre contrĆ“lĆ©e en garantissant que les bords latĆ©raux du volet ne flambent pas c'est-Ć -dire ne forment pas de pli entre le rouleau et l'extrĆ©mitĆ© supĆ©rieure des glissiĆØres lors de son dĆ©roulement.
A cette fin, le dispositif selon l'invention est caractƩrisƩ en ce qu'il comporte des ƩlƩments de confinement permettant d'Ʃviter le flambage des bords latƩraux (2,3) dans leur partie non maintenue.
Selon un premier mode d'exĆ©cution les Ć©lĆ©ments de confinement comporte un Ć©lĆ©ment de pression permettant d'exercer une force de poussĆ©e sur les bords latĆ©raux du volet au niveau de la partie non maintenue du volet s'Ć©tendant entre une premiĆØre extrĆ©mitĆ© des glissiĆØres et le rouleau, de sorte Ć  obtenir une rĆ©sultante de force de poussĆ©e radiale qui applique en permanence les bords latĆ©raux du volet flexible, dans leur partie non maintenue, sur l'Ć©lĆ©ment de pression.
Ainsi, lors du dĆ©roulement il se forme un excĆ©dant de volet entre l'extrĆ©mitĆ© supĆ©rieure des glissiĆØres (la plus proche du tambour) et le rouleau. L'Ć©lĆ©ment de pression assure que la partie non maintenue des bords latĆ©raux de volet reste en appui; on Ć©vite ainsi la formation de pli entre le rouleau formĆ© sur le tambour et l'extrĆ©mitĆ© des glissiĆØres la plus proche du tambour.
Selon un autre mode de rĆ©alisation particulier de l'invention, les moyens de confinement comportent une tige s'Ć©tendant dans le prolongement des branches avant des glissiĆØres.
De prƩfƩrence, l'invention est telle que dƩcrite dans les revendications dƩpendantes.An object of the invention is to overcome these disadvantages by having a shutter device which is closed in a controlled manner by ensuring that the side edges of the flap do not blaze that is to say do not form a fold between the roller and the upper end of the slides as it unfolds.
To this end, the device according to the invention is characterized in that it comprises containment elements to prevent buckling of the side edges (2,3) in their non-maintained part.
According to a first embodiment, the confinement elements comprise a pressure element making it possible to exert a thrust force on the lateral edges of the flap at the non-maintained portion of the flap extending between a first end of the slideways and the roller, so as to obtain a radial thrust force resultant which permanently applies the lateral edges of the flexible flap, in their non-maintained part, on the pressure element.
Thus, during unwinding, an excess flap is formed between the upper end of the slideways (closest to the drum) and the roller. The pressure element ensures that the non-maintained portion of the flap side edges remains in abutment; this avoids fold formation between the roll formed on the drum and the end of the slides closest to the drum.
According to another particular embodiment of the invention, the confinement means comprise a rod extending in the extension of the branches before the slides.
Preferably, the invention is as described in the dependent claims.

BrĆØve description des figuresBrief description of the figures

Ces aspects ainsi que d'autres aspects de l'invention seront clarifiƩs dans la description dƩtaillƩe de modes de rƩalisation particuliers de l'invention, rƩfƩrence Ʃtant faite aux dessins des figures, dans lesquelles :

Fig. 1
montre une vue schƩmatique de face d'un dispositif Ơ volet flexible dans la position de fermeture;
Fig. 2
montre une vue latƩrale du dispositif Ơ volet flexible de la figure 1;
Fig. 3
montre une coupe latƩrale d'un dispositif Ơ volet selon l'art antƩrieur lors du dƩroulement du volet flexible.
Fig. 4
montre une coupe latƩrale du dispositif Ơ volet flexible de la Fig. 3 dans la position de fermeture;
Fig. 5
montre une coupe schĆ©matique latĆ©rale d'une glissiĆØre dans le dispositif de la figure 3 (art antĆ©rieur).
Fig. 6
montre une coupe latƩrale d'un dispositif Ơ volet flexible, dans la position d'ouverture, selon un mode de rƩalisation de l'invention.
Fig. 7
montre une coupe latƩrale du dispositif de la figure 6 lors du dƩroulement du volet flexible.
Fig. 8
montre une coupe latƩrale du dispositif de la figure 6 dans la position de fermeture.
Fig. 9
montre une coupe schĆ©matique latĆ©rale de la partie supĆ©rieure d'une glissiĆØre selon l'invention.
Fig. 10
montre une coupe selon la ligne X-X de la Fig. 9.
Fig. 11
montre une coupe selon la ligne XI-XI de la Fig. 9.
Fig. 12
montre une coupe schĆ©matique latĆ©rale de la partie supĆ©rieure d'une glissiĆØre d'un dispositif selon l'invention, dans laquelle coulisse les bords latĆ©raux d'un volet flexible.
Fig. 13
montre une coupe selon la ligne XIII-XIII de la Fig. 12.
Fig. 14
montre une coupe selon la ligne XIV-XIV de la Fig. 12.
Fig. 15
montre une vue latƩrale de la partie supƩrieure d'un dispositif selon un autre mode de rƩalisation de l'invention ; en position de fermeture ;
Fig. 16
montre une vue similaire Ć  celle de la Fig. 15, le dispositif Ć©tant en position d'ouverture.
Les Fig. 17 Ć  20
sont des vues similaires Ơ celles des Fig. 15 et 16, de deux variantes d'exƩcution.
Les Fig. 21 et 22
sont des vues similaires Ơ celles des Fig. 15 et 16 d'un autre mode d'exƩcution.
La Fig. 23
montre une coupe selon la ligne XXIII-XXIII de la Fig. 22.
These and other aspects of the invention will be clarified in the detailed description of particular embodiments of the invention, with reference to the drawings of the figures, in which:
Fig. 1
shows a schematic front view of a flexible shutter device in the closed position;
Fig. 2
shows a side view of the flexible shutter device of the figure 1 ;
Fig. 3
shows a side section of a shutter device according to the prior art during the unfolding of the flexible flap.
Fig. 4
shows a side cut of the flexible flap device of the Fig. 3 in the closed position;
Fig. 5
shows a schematic side section of a slide in the device of the figure 3 (prior art).
Fig. 6
shows a side section of a flexible shutter device, in the open position, according to an embodiment of the invention.
Fig. 7
shows a lateral section of the device of the figure 6 during the unfolding of the flexible shutter.
Fig. 8
shows a lateral section of the device of the figure 6 in the closed position.
Fig. 9
shows a schematic side section of the upper part of a slide according to the invention.
Fig. 10
shows a section along line XX of the Fig. 9 .
Fig. 11
shows a section along line XI-XI of the Fig. 9 .
Fig. 12
shows a schematic side section of the upper part of a slide of a device according to the invention, in which slides the lateral edges of a flexible flap.
Fig. 13
shows a section along line XIII-XIII of the Fig. 12 .
Fig. 14
shows a section along line XIV-XIV of the Fig. 12 .
Fig. 15
shows a side view of the upper part of a device according to another embodiment of the invention; in the closed position;
Fig. 16
shows a view similar to that of the Fig. 15 , the device being in the open position.
Figs. 17 to 20
are views similar to those of Fig. 15 and 16 , of two variants of execution.
Figs. 21 and 22
are views similar to those of Fig. 15 and 16 another mode of execution.
Fig. 23
shows a section along line XXIII-XXIII of the Fig. 22 .

Les figures ne sont pas dessinƩes Ơ l'Ʃchelle. GƩnƩralement, des ƩlƩments semblables sont dƩnotƩs par des rƩfƩrences semblables dans les figures.The figures are not drawn to scale. Generally, similar elements are denoted by similar references in the figures.

Description dƩtaillƩe de modes de rƩalisation particuliersDetailed description of particular embodiments

Il sera Ć©vident pour l'homme du mĆ©tier que la prĆ©sente invention n'est pas limitĆ©e Ć  ce qui a Ć©tĆ© divulguĆ© et dĆ©crit en particulier ci-dessus. L'invention rĆ©side dans la prĆ©sentation de toutes caractĆ©ristiques nouvelles et dans chaque combinaison de ces caractĆ©ristiques. Les rĆ©fĆ©rences numĆ©riques dans les revendications, ne limitent pas la portĆ©e de leur protection. L'usage des verbes Ā« comprendre, comporter ou inclure Ā» et leurs formes conjuguĆ©es, n'exclut pas la prĆ©sence d'autres Ć©lĆ©ments que ceux Ć©numĆ©rĆ©s dans les revendications. L'usage de l'article Ā« un/une Ā» devant un Ć©lĆ©ment, n'exclut pas la prĆ©sence d'une pluralitĆ© de tels Ć©lĆ©ments.It will be apparent to those skilled in the art that the present invention is not limited to what has been disclosed and described in particular above. The invention lies in the presentation of all new features and in each combination of these characteristics. The numerals in the claims do not limit the scope of their protection. The use of the verbs "understand, include or include" and their conjugate forms, does not exclude the presence of elements other than those listed in the claims. The use of the article "a" in front of an element does not exclude the presence of a plurality of such elements.

D'une faƧon gƩnƩrale, la prƩsente invention est relative Ơ un dispositif Ơ volet flexible coopƩrant avec des moyens d'entraƮnement, tel qu'un tambour dont l'axe est branchƩ sur l'arbre d'un moteur Ʃlectrique. Le volet flexible se dƩplace suivant un mouvement descendant et ascendant entre, respectivement, une position de fermeture et une position d'ouverture, et est destinƩ Ơ la fermeture d'une baie dans une paroi ou d'un passage, tel qu'un couloir.In general, the present invention relates to a device with a flexible flap cooperating with drive means, such as a drum whose axis is connected to the shaft of an electric motor. The flexible flap moves in downward and upward movement between, respectively, a closed position and an open position, and is intended for closure of a bay in a wall or passage, such as a corridor .

Par le mot "volet flexible", il y a lieu de comprendre, dans le cadre de la prĆ©sente invention, tout Ć©lĆ©ment plan flexible tel qu'une bĆ¢che, des lamelles articulĆ©es, une tĆ“le mĆ©tallique etc., qui est pourvu Ć  ses extrĆ©mitĆ©s latĆ©rales de bords sensiblement incompressibles. Il s'agit en outre d'un volet qui peut ĆŖtre enroulĆ© autour d'un tambour dont l'axe est perpendiculaire Ć  la direction de dĆ©placement du volet lors de l'ouverture de ce dernier.By the word "flexible flap" it is appropriate to understand, in the context of the present invention, all flexible planar element such as a tarpaulin, articulated slats, a metal sheet etc., which is provided at its lateral ends with substantially incompressible edges. It is also a component that can be wound around a drum whose axis is perpendicular to the direction of movement of the flap during opening of the latter.

Il y a, toutefois, lieu de noter qu'une prĆ©fĆ©rence prononcĆ©e est donnĆ©e aux volets souples formĆ©s, par exemple, par une bĆ¢che. Les figures annexĆ©es se rapportent, par consĆ©quent, plus particuliĆØrement Ć  une telle bĆ¢che.It should be noted, however, that a pronounced preference is given to flexible flaps formed, for example, by a tarpaulin. The appended figures therefore relate more particularly to such a tarpaulin.

Dans les figures 1 et 2, le dispositif Ć  volet est reprĆ©sentĆ© schĆ©matiquement dans la position de fermeture. Ce dispositif comprend un volet flexible 1 avec des bords latĆ©raux 2 et 3 saillant par rapport au plan du volet 1. Les bords latĆ©raux 2 et 3 sont avantageusement formĆ©s par un bourrelet continu 46 (illustrĆ© en dĆ©tail aux Fig. 13 et 14) ou par une succession de petites dents se dĆ©plaƧant dans des glissiĆØres 4 et 5 verticales. Les glissiĆØres 4 et 5 sont prĆ©vus de part et d'autre d'une baie 6 qui est prĆ©sente dans une paroi 7.In the Figures 1 and 2 , the shutter device is shown schematically in the closed position. This device comprises a flexible flap 1 with side edges 2 and 3 protruding from the plane of the flap 1. The side edges 2 and 3 are advantageously formed by a continuous bead 46 (shown in detail in FIGS. Fig. 13 and 14 ) or by a succession of small teeth moving in vertical slides 4 and 5. The slides 4 and 5 are provided on either side of a bay 6 which is present in a wall 7.

Au-dessus de la baie 6 est prĆ©vu un tambour 8 sur lequel le volet flexible 1 peut ĆŖtre enroulĆ©. A l'intĆ©rieur du tambour 8 est agencĆ© un moteur Ć©lectrique 9 qui permet d'entraĆ®ner le tambour 8 autour de son axe 11. Ceci permet d'enrouler le volet 1 sur le tambour 8 pour l'amener dans la position d'ouverture ou de dĆ©rouler le volet 1 vers sa position de fermeture. Lors du dĆ©placement du volet 1 vers la position de fermeture, les bords latĆ©raux 2 et 3 de celui-ci sont guidĆ©s par les glissiĆØres 4 et 5.Above the bay 6 is provided a drum 8 on which the flexible flap 1 can be wound. Inside the drum 8 is arranged an electric motor 9 which drives the drum 8 about its axis 11. This allows to wind the flap 1 on the drum 8 to bring it into the open position or to unroll the shutter 1 to its closed position. When moving the shutter 1 to the closed position, the lateral edges 2 and 3 thereof are guided by the slides 4 and 5.

Au milieu du volet 1, une fenĆŖtre transparente 10 peut ĆŖtre prĆ©vue.In the middle of the shutter 1, a transparent window 10 may be provided.

Lors de l'ouverture du volet 1, celui-ci est enroulƩ autour du tambour 8 en formant un rouleau constituƩ de spires formƩes par des couches superposƩes successives du volet 1.When the shutter 1 is opened, it is wound around the drum 8 by forming a roll consisting of turns formed by successive superimposed layers of the shutter 1.

Lorsque le volet 1 est enroulƩ autour du tambour 8, les spires successives du volet 1 s'accrochent l'une Ơ l'autre. Si les bords latƩraux 3, 4 du volet sont munies de petites dents, celles-ci permettent d'Ʃviter que les couches successives du volet 1 ne glissent l'une par rapport Ơ l'autre.When the shutter 1 is wrapped around the drum 8, the successive turns of the shutter 1 cling to one another. If the side edges 3, 4 of the flap are provided with small teeth, these prevent the successive layers of the flap 1 from sliding relative to each other.

Les figures 3, 4 et 5 montrent un dispositif Ơ volet selon l'art antƩrieur.The Figures 3, 4 and 5 show a shutter device according to the prior art.

Le volet 1 est dĆ©roulĆ© en faisant tourner le tambour 8 autour de son axe, de sorte que le volet 1 descend en fermant la baie 6 pendant que les bords latĆ©raux 2,3 de ce dernier sont guidĆ©s dans les deux glissiĆØres 4,5 droites s'Ć©tendant parallĆØlement l'une Ć  l'autre. Par la rotation du tambour 8, une force de poussĆ©e est exercĆ©e sur les bords latĆ©raux 2, 3 du volet 1 suivant leur direction longitudinale.The flap 1 is unwound by rotating the drum 8 about its axis, so that the shutter 1 goes down by closing the bay 6 while the lateral edges 2,3 of the latter are guided in the two slides 4.5 straight s extending parallel to each other. By the rotation of the drum 8, a thrust force is exerted on the lateral edges 2, 3 of the shutter 1 in their longitudinal direction.

Chacune des glissiĆØres 4, 5 prĆ©sente une section en forme de U dont la partie centrale 40 est adossĆ©e Ć  la structure de la baie 6, l'ouverture du U d'une glissiĆØre 4 Ć©tant dirigĆ©e vers l'ouverture de l'autre glissiĆØre 5.Each of the slides 4, 5 has a U-shaped section, the central portion 40 is leaned against the structure of the bay 6, the opening of the U of a slide 4 being directed towards the opening of the other slide 5 .

Chaque glissiĆØre 4, 5 en forme de U comporte une branche 42 qui s'Ć©tend cĆ“tĆ© arriĆØre, vers la paroi 7, et une autre branche 44, qui s'Ć©tend cĆ“tĆ© avant, vers le tambour 8. (Fig. 11 et 14)Each U-shaped slider 4, 5 has a branch 42 which extends rearwards towards the wall 7, and another branch 44 which extends forwardly towards the drum 8. Fig. 11 and 14 )

Etant donnĆ© que le diamĆØtre du rouleau formĆ© autour du tambour 8 varie selon la position du volet 1, il existe un espace entre le rouleau et les extrĆ©mitĆ©s supĆ©rieures 30 des glissiĆØres 4,5 les plus proches du tambour 8, dans lequel le volet 1 n'est ni maintenue par ses bords latĆ©raux 2, 3 dans les glissiĆØres 4,5, ni enroulĆ©e autour du tambour 8. De part le caractĆØre flexible du volet 1, cette partie non maintenue du volet 1 dĆ©formable et pliable peut devenir rapidement incontrĆ“lable.Since the diameter of the roll formed around the drum 8 varies according to the position of the flap 1, there is a space between the roll and the upper ends of the slides 4.5 closest to the drum 8, in which the flap 1 n It is not maintained by its side edges 2, 3 in the slides 4,5, nor wound around the drum 8. Due to the flexible nature of the flap 1, this non-maintained portion of the deformable and foldable flap 1 can quickly become uncontrollable.

Le tambour 8 est maintenu en appui contre la structure de la paroi 7 grĆ¢ce Ć  des ressorts 20 dirigĆ©s selon un axe sensiblement horizontal.The drum 8 is held in abutment against the structure of the wall 7 by means of springs 20 directed along a substantially horizontal axis.

Les figures 3 et 5 prĆ©sentent le cas oĆ¹ lors de la fermeture de la baie 6, la descente du volet 1 le long des glissiĆØres 4,5 est bloquĆ©e par un obstacle ou par les frottements dĆ» Ć  la force du vent. Le tambour 8 est toujours entraĆ®nĆ© en rotation et le volet 1 continue Ć  se dĆ©rouler en crĆ©ant un excĆ©dant de volet 1 entre le rouleau et l'extrĆ©mitĆ© supĆ©rieure 30 des glissiĆØres 4,5. Une partie de l'excĆ©dant du volet 1 reste enroulĆ©e au tambour 8 notamment en raison de la prĆ©sence des dents d'accrochage pour le maintien des spires entre elles ; le reste de l'excĆ©dant forme un pli 15 dans la partie du volet 1 non maintenue, c'est-Ć -dire dans l'espace entre le rouleau 8 et l'extrĆ©mitĆ© supĆ©rieure 30 des glissiĆØres 4, 5. Si le tambour 8 continue Ć  tourner, la boucle du pli 15 augmente. Le volet 1 se plie dans sa partie non maintenue directement en sortie des glissiĆØres 4,5 ; ce pli empĆŖche le volet de rentrer dans les glissiĆØres 4,5. Il faut stopper le moteur 9 et enrouler Ć  nouveau le volet 1 afin d'absorber le pli 15 qui s'est formĆ©.The figures 3 and 5 present the case when when closing the bay 6, the descent of the shutter 1 along the slides 4,5 is blocked by an obstacle or by friction due to the force of the wind. The drum 8 is always rotated and the flap 1 continues to unwind by creating an excess flap 1 between the roll and the upper end 30 of the slides 4,5. Part of the excess of the flap 1 remains wound on the drum 8 in particular because of the presence of the attachment teeth for holding the turns together; the remainder of the excess forms a fold 15 in the portion of the flap 1 not maintained, that is to say in the space between the roller 8 and the upper end 30 of the slides 4, 5. If the drum 8 continues to rotate, the fold loop 15 increases. The flap 1 folds in its part not maintained directly at the exit of the slides 4,5; this fold prevents the flap from entering the slides 4.5. It is necessary to stop the motor 9 and rewind the shutter 1 in order to absorb the fold 15 that has formed.

Les figures 6 Ơ 12 montrent un dispositif Ơ volet souple selon un premier mode de rƩalisation de l'invention.The Figures 6 to 12 show a flexible shutter device according to a first embodiment of the invention.

Dans ce premier mode de rĆ©alisation de l'invention, les glissiĆØres 4,5 sont substantiellement droites et verticales dans la majeure partie de leur hauteur. La partie supĆ©rieure des glissiĆØres 4,5 est inclinĆ©e vers la paroi 7 par rapport au plan formĆ© par ces mĆŖmes glissiĆØres 4, 5.In this first embodiment of the invention, the slides 4,5 are substantially straight and vertical in most of their height. The upper part of the slides 4,5 is inclined towards the wall 7 with respect to the plane formed by these same slides 4, 5.

Dans leur partie juste en dessous de leur partie supĆ©rieure, les glissiĆØres peuvent prĆ©senter un bossage convexe 34 pour leur permettre de revenir dans le plan vertical.In their part just below their upper part, the slides may have a convex boss 34 to allow them to return in the vertical plane.

Par ailleurs, la branche arriĆØre 42 des glissiĆØres 4, 5 est prolongĆ©e vers le haut par un guide 33 souple recourbĆ© 33. L'ensemble des courbures 33 et 34 forment un Ā« S Ā» aplati.Furthermore, the rear leg 42 of the slides 4, 5 is extended upwards by a curved flexible guide 33. The set of curvatures 33 and 34 form a flattened "S".

Les Fig. 9 Ć  14 montrent ce guide 33 plus en dĆ©tail. Dans l'exemple illustrĆ©; le guide 33 prĆ©sente un profil en forme de U aplati. Cette forme est adaptĆ©e Ć  la forme particuliĆØre du bord latĆ©ral du volet, qui prĆ©sente dans l'exemple illustrĆ©, un bourrelet saillant 46 (illustrĆ© aux Fig. 13 et 14).The Fig. 9 to 14 show this guide 33 in more detail. In the illustrated example; the guide 33 has a flattened U-shaped profile. This shape is adapted to the particular shape of the side edge of the flap, which has in the example shown, a protruding bead 46 (illustrated in FIGS. Fig. 13 and 14 ).

Le guide 33 constitue un Ć©lĆ©ment de pression qui permet d'exercer une force de poussĆ©e (illustrĆ©e pas des flĆØches sur la Fig. 12) Ć  l'endroit oĆ¹, lors de l'enroulement du volet 1, la surface de la partie du volet 1 qui n'est pas encore enroulĆ©e vient en contact avec la partie du volet 1 qui forme dĆ©jĆ  des spires autour du tambour 8. Le guide 33 permet de maintenir les spires adjacentes l'une Ć  l'autre. Dans le cas de volet comprenant des dents d'accrochage, le guide 33 exerce une pression sur ces dents d'accrochage afin de fixer les spires successives du volet l'une Ć  l'autre lors de l'enroulement de ce dernier autour du tambour 8.The guide 33 constitutes a pressure element which makes it possible to exert a thrust force (illustrated by arrows on the Fig. 12 ) at the place where, during the winding of the shutter 1, the surface of the part of the shutter 1 which is not yet wound comes into contact with the portion of the shutter 1 which already forms turns around the drum 8. The guide 33 keeps the turns adjacent to each other. In the case of a flap comprising gripping teeth, the guide 33 exerts pressure on these gripping teeth in order to fix the successive turns of the flap to one another when winding the latter around the drum. 8.

Le guide 33 est maintenu en appui contre la paroi 7 par l'intermĆ©diaire d'un Ć©lĆ©ment d'appui 18. L'Ć©lĆ©ment d'appui 18 est prĆ©vu Ć  l'endroit oĆ¹, lors de l'enroulement du volet 1, la surface de la partie du volet 1 qui n'est pas encore enroulĆ©e vient en contact avec la partie du volet 1 qui forme dĆ©jĆ  des spires autour du tambour 8. (Fig. 6 Ć  8)The guide 33 is held in abutment against the wall 7 by means of a support element 18. The support element 18 is provided at the place where, during the winding of the shutter 1, the surface the part of the shutter 1 which is not yet wound comes into contact with the portion of the shutter 1 which already forms turns around the drum 8. Fig. 6 to 8 )

Suivant l'invention, l'Ć©lĆ©ment de pression 33 permet d'exercer, une force de poussĆ©e sur les bords latĆ©raux 2,3 du volet 1 au niveau de la partie non maintenue du volet 1 s'Ć©tendant entre l'extrĆ©mitĆ© supĆ©rieure 30 des glissiĆØres 4,5 et le rouleau, de sorte Ć  obtenir une rĆ©sultante de force de poussĆ©e radiale qui applique en permanence les bords latĆ©raux du volet, dans la partie non maintenue, sur l'Ć©lĆ©ment de pression (33).According to the invention, the pressure element 33 makes it possible to exert a thrust force on the lateral edges 2, 3 of the shutter 1 at the non-maintained portion of the shutter 1 extending between the upper end 30 of the slides 4.5 and the roller, so as to obtain a resultant radial thrust force which permanently applies the lateral edges of the flap, in the non-maintained part, on the pressure element (33).

L'extrĆ©mitĆ© 30 permet ainsi de guider le volet 1 en sortie de glissiĆØres 4,5 de sorte Ć  former une courbure 33 dans la partie non maintenue du volet 1. La courbure 33 du volet 1 dans sa partie non maintenue est concave par rapport au tambour 8 (Fig. 12).The end 30 thus makes it possible to guide the flap 1 at the outlet of the slides 4,5 so as to form a curvature 33 in the non-maintained part of the flap 1. The curvature 33 of the flap 1 in its non-maintained part is concave with respect to drum 8 ( Fig. 12 ).

Les glissiĆØres prĆ©sentent selon le mode illustrĆ© une courbure 34 opposĆ©e Ć  la courbure 33 de sorte Ć  rĆ©cupĆ©rer le plan droit des glissiĆØres 4,5 dans leur partie infĆ©rieure.The slides have, in the illustrated manner, a curvature 34 opposite the curvature 33 so as to recover the straight plane of the slides 4,5 in their lower part.

GrĆ¢ce Ć  cette continuitĆ© dans la courbure 33, l'excĆ©dant de volet 1 qui se formerait dans sa partie non maintenue en cas de frottements dans les glissiĆØres 4,5 lors du dĆ©roulement du volet 1, est Ā« absorbĆ© Ā» par la courbure 33 du volet 1 dans sa partie non maintenue. En effet, Ć©tant donnĆ© qu'il est trĆØs difficile de renverser une courbure dans un volet flexible, on Ć©vite le flambage et la formation d'un pli (comme dans le cas de la Fig. 3) dans la partie non maintenue des bords du volet. Ceci est montrĆ© Ć  la figure 12.Thanks to this continuity in the curvature 33, the surplus flap 1 which would be formed in its non-maintained portion in case of friction in the slides 4,5 during the unwinding of the flap 1, is "absorbed" by the curvature 33 of the flap 1 in his part not maintained. Indeed, since it is very difficult to reverse a curvature in a flexible flap, it avoids buckling and the formation of a fold (as in the case of Fig. 3 ) in the non-maintained part of the flap edges. This is shown in the figure 12 .

De prĆ©fĆ©rence, en position d'ouverture l'extrĆ©mitĆ© supĆ©rieure 30 des glissiĆØres 4, 5 vient Ć  proximitĆ© de la derniĆØre spire du volet enroulĆ©e sur le tambour 8.Preferably, in the open position the upper end 30 of the slides 4, 5 comes close to the last turn of the flap wound on the drum 8.

En position de fermeture, un espace peut apparaĆ®tre entre l'extrĆ©mitĆ© supĆ©rieure 30 des glissiĆØres et la derniĆØre spire enroulĆ©e. Dans cet espace les bords latĆ©raux 2, 3 du volet ne sont pas maintenus.In the closed position, a space may appear between the upper end 30 of the slides and the last wound coil. In this space the lateral edges 2, 3 of the shutter are not maintained.

Les Fig. 15 Ć  23 reprĆ©sentent quatre variantes d'exĆ©cution. Dans ces variantes d'exĆ©cution, le tambour 8 n'est plus mobile selon un axe sensiblement horizontal mais est maintenu de maniĆØre fixe.The Fig. 15 to 23 represent four variants of execution. In these alternative embodiments, the drum 8 is no longer movable along a substantially horizontal axis but is held in a fixed manner.

Dans les variantes d'exĆ©cution illustrĆ©es aux Fig. 15 Ć  20, le dispositif comporte une structure d'appui mobile 50 qui maintien le guide 33 en contact permanent avec la derniĆØre spire enroulĆ©e sur le tambour 8 quelque soit l'Ć©tat ouvert ou fermĆ© du dispositif, c'est-Ć -dire quelque soit le volume du rouleau. Dans ces modes de rĆ©alisation, le guide 33 apporte principalement un effet de glissement qui limite le frottement. Toutefois, on pourrait aussi, sans sortir du cadre de l'invention, se passer de ce guide et rĆ©aliser une structure d'appui 50 qui soit directement en contact avec la derniĆØre spire du rouleau.In the execution variants illustrated in Fig. 15 to 20 , the device comprises a movable support structure 50 which keeps the guide 33 in permanent contact with the last turn wound on the drum 8 whatever the open or closed state of the device, that is to say whatever the volume of the roll. In these embodiments, the guide 33 mainly provides a sliding effect which limits the friction. However, one could also, without departing from the scope of the invention, do without this guide and make a support structure 50 which is directly in contact with the last turn of the roller.

La structure d'appui mobile 50 peut prendre diffƩrentes formes. Aux Fig. 15 Ơ 20, il s'agit d'un ƩlƩment sensiblement triangulaire, pivotant selon un axe de pivotement 52 et dont la face 54 tournƩe vers le tambour prƩsente une courbure concave par rapport au tambour 8.The movable support structure 50 can take different forms. To the Fig. 15 to 20 it is a substantially triangular element, pivoting about a pivot axis 52 and whose side 54 facing the drum has a concave curvature with respect to the drum 8.

DiffĆ©rents systĆØmes de rappel peuvent ĆŖtre imaginĆ©s, de maniĆØre Ć  rendre le systĆØme d'appui mobile et Ć  le maintenir en appui permanent de maniĆØre Ć  Ć©viter le flambage et le dĆ©crochement des spires les unes par rapport aux autres. En particulier, des systĆØmes comportant des ressorts 56 et Ć©ventuellement des poulies de renvoi 58 telles qu'illustrĆ©s aux Fig. 15 Ć  20 peuvent servir de systĆØme de rappel.Different return systems can be devised, so as to make the support system movable and to maintain it in permanent support so as to avoid buckling and detachment of the turns relative to each other. In particular, systems comprising springs 56 and possibly return pulleys 58 as illustrated in FIGS. Fig. 15 to 20 can serve as a reminder system.

Aux Fig. 21 Ć  23, l'Ć©lĆ©ment de confinement est constituĆ© d'une tige sensiblement droite 66 qui s'Ć©tend vers le haut dans le prolongement de la branche avant 44 de chaque glissiĆØre 4,5. Cette tige 66 s'Ć©tend de prĆ©fĆ©rence entre la derniĆØre spire enroulĆ©e du rouleau et la partie non encore enroulĆ©e du volet (1), Ć  proximitĆ© du bord latĆ©ral 2,3, juste devant le bourrelet 46 (Fig. 23).To the Fig. 21 to 23 , the containment element consists of a substantially straight rod 66 which extends upwardly in the extension of the front branch 44 of each slideway 4,5. This rod 66 preferably extends between the last coil wound of the roll and the not yet wound portion of the flap (1), near the side edge 2,3, just in front of the bead 46 (FIG. Fig. 23 ).

Dans l'exemple illustrĆ©, la branche arriĆØre de chaque glissiĆØre 4,5 est Ć©galement prolongĆ©e vers le haut par un guide 60 sensiblement droit. Un U de renfort 68 peut ĆŖtre prĆ©vu autour du guide 60 et de la tige 66. Un systĆØme de rappel comportant ressorts 62 et poulies de renvoi 64 permet de maintenir le guide 60 en appui contre le rouleau.In the example illustrated, the rear branch of each slideway 4,5 is also extended upwards by a guide 60 substantially straight. A reinforcement U 68 may be provided around the guide 60 and the rod 66. A return system comprising springs 62 and return pulleys 64 keeps the guide 60 bearing against the roller.

La tige 66 peut s'Ć©tendre jusqu'Ć  une hauteur correspondant au point de contact entre le rouleau et le guide 60.The rod 66 may extend to a height corresponding to the point of contact between the roll and the guide 60.

Dans ce dernier mode d'exĆ©cution, il n'y a plus de force de poussĆ©e radiale ; le systĆØme de rappel doit donc ĆŖtre moins puissant qu'aux modes de rĆ©alisation prĆ©cĆ©dents. Le frottement entre la tige 60 et les spires est donc avantageusement diminuĆ©.In this last embodiment, there is no more radial thrust force; the recall system must be less powerful than the previous embodiments. The friction between the rod 60 and the turns is therefore advantageously reduced.

Lors d'un enroulement et dĆ©roulement sans contrainte du volet, la tige 66 n'entre pas en contact avec le volet, un lĆ©ger espace est maintenu entre la tige et le volet de par et d'autre de la tige. Si un obstacle interrompt la fermeture du volet ou si une pression particuliĆØre augmente les frottements, le volet, Ć  proximitĆ© de son bord latĆ©ral vient alors contre la tige. Celle-ci empĆŖche alors le volet de flamber.
La prĆ©sente invention a Ć©tĆ© dĆ©crite en termes de rĆ©alisations spĆ©cifiques qui sont une illustration de l'invention et qui ne doivent pas ĆŖtre considĆ©rĆ©es comme limitatives.
En particulier, le dispositif a Ć©tĆ© dĆ©crit dans une position oĆ¹ le volet se dĆ©place dans un plan vertical et dans une direction de haut en bas (lors de la fermeture). Bien entendu, la position du volet et du tambour n'est pas limitative. Le mĆŖme dispositif peut s'utiliser dans d'autres positions, en particulier, le volet peut ĆŖtre vertical mais s'ouvrir dans une direction latĆ©rale. De mĆŖme, le dispositif selon l'invention peut s'utiliser dans une position horizontale, par exemple pour la couverture de bateaux ou de piscines.
L'extrĆ©mitĆ© supĆ©rieure des glissiĆØres doit alors se comprendre comme l'extrĆ©mitĆ© la plus proche du tambour ; mais pour des raisons de clartĆ© de l'exposĆ© par rapport aux Fig., elle est appelĆ©e extrĆ©mitĆ© supĆ©rieure dans la prĆ©sente description.
Par ailleurs, le dispositif selon l'invention prƩsente l'avantage de fermer une baie ou tout type d'ouverture sans aucun lestage du volet flexible.During winding and unwinding of the flap, the rod 66 does not come into contact with the flap, a slight space is maintained between the rod and the shutter on either side of the rod. If an obstacle interrupts the closure of the shutter or if a particular pressure increases the friction, the shutter, near its side edge then comes against the rod. This then prevents the shutter from flaming.
The present invention has been described in terms of specific embodiments which are an illustration of the invention and which should not be considered as limiting.
In particular, the device has been described in a position where the flap moves in a vertical plane and in a direction from top to bottom (when closing). Of course, the position of the flap and the drum is not limiting. The same device can be used in other positions, in particular, the flap can be vertical but open in a lateral direction. Similarly, the device according to the invention can be used in a horizontal position, for example for the cover of boats or swimming pools.
The upper end of the slides must be understood as the end closest to the drum; but for the sake of clarity of the disclosure with respect to Figs., it is called the upper end in the present description.
Furthermore, the device according to the invention has the advantage of closing a bay or any type of opening without any weighting of the flexible flap.

Claims (11)

  1. Flexible shutter device designed for closing a bay (6) or any other type of opening comprising:
    - a flap (1) comprising lateral edges (2, 3),
    - drive means making it possible to displace the flap (1) between an open position and a closed position, the drive means comprising a drum (8) which may turn about the axis (11) thereof, about which the flap (1) is wound in the open position thereof forming a roll comprising turns made up of successive layers attaching one to the other and from which the flap (1) can be unwound towards the closed position thereof,
    - slides (4, 5) mounted on a fixed support for the guiding along the bay (6) of the lateral edges (2, 3) of the unwound part of the flap (1), the lateral edges (2, 3) being substantially uncompressible; the slides having a U-shaped section, of which the central part (40) is engaged with the structure of the bay (6), the two branches (42, 44) of the U each being arranged in a plane parallel to the plane of the flap (1)
    characterised in that it comprises restriction elements (33; 50; 60, 66) comprising an extension towards the roll of the rear branches (42) of each slide (4, 5) and making it possible to avoid the buckling of the lateral edges (2, 3) in the unsupported part thereof extending between a first end (30) of the slides (4, 5), nearest the roll, and the roll, and in that the flap (1) is devoid of any ballasting.
  2. Device according to claim 1, characterised in that the lateral edges (2, 3) of the flap (1) have a protruding bead (46) in relation to the plane of the flap (1).
  3. Device according to any of the preceding claims, characterised in that the restriction elements (33, 50, 60) are maintained in contact with the last turn wound around the drum 8 thanks to a retention system (20, 56, 58, 62, 64).
  4. Flexible shutter device according to any of claims 1 to 3, characterised in that the restriction elements include a pressure element (33) having a concave curvature in relation to the drum (8).
  5. Device according to claim 4, characterised in that the pressure element (33) makes it possible to exert a thrust force on the lateral edges (2, 3) of the flap (1) on the part of the unsupported flap (1), extending between a first end (30) of the slides (4, 5), nearest the roll and the roll, in such a way as to obtain a resulting radial thrust force which constantly applies the lateral edges (2, 3) of the flap (1), in the unsupported part, on the pressure element (33).
  6. Device according to claim 4 or 5, characterised in that the slides (4, 5) are substantially straight and have in their upper part immediately under the pressure element (33) a inclination in relation to the plane of the slides (4, 5) separating the upper end (30) of the slides (4, 5) from the drum (8).
  7. Device according to any of claims 4 to 6, characterised in that the pressure element comprises a flexible guide (33).
  8. Device according to any of claims 1 to 3, characterised in that the restriction elements comprise in addition to the means (60) a substantially straight rod (66) which extends towards the roll, in the extension of the front branch (44) of each slide.
  9. Device according to the preceding claim, characterised in that the rod (66) extends between the last wound turn of the roll and the not yet wound part of the flap (1), in the vicinity of the lateral edge (2, 3).
  10. Device according to any of claims 1 to 3, characterised in that the restriction elements include a rigid and mobile support structure (50) around a pivot axis (52) thanks to a retention element, in such a way that they exert a pressure on the lateral edges (2, 3) of the last wound turn of the roll.
  11. Device according to the preceding claim, characterised in that the support structure (50) comprises a surface (54) having a concave curvature in relation to the drum (8).
EP08708647A 2007-02-07 2008-02-04 Device with a flexible shutter which may be wound on a drum Active EP2118425B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL08708647T PL2118425T3 (en) 2007-02-07 2008-02-04 Device with a flexible shutter which may be wound on a drum
EP08708647A EP2118425B1 (en) 2007-02-07 2008-02-04 Device with a flexible shutter which may be wound on a drum

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07101917A EP1956179A1 (en) 2007-02-07 2007-02-07 Device with a shutter that can roll around a drum.
PCT/EP2008/051344 WO2008101796A1 (en) 2007-02-07 2008-02-04 Device with a shutter which may be wound on a drum
EP08708647A EP2118425B1 (en) 2007-02-07 2008-02-04 Device with a flexible shutter which may be wound on a drum

Publications (2)

Publication Number Publication Date
EP2118425A1 EP2118425A1 (en) 2009-11-18
EP2118425B1 true EP2118425B1 (en) 2012-12-19

Family

ID=38179734

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07101917A Withdrawn EP1956179A1 (en) 2007-02-07 2007-02-07 Device with a shutter that can roll around a drum.
EP08708647A Active EP2118425B1 (en) 2007-02-07 2008-02-04 Device with a flexible shutter which may be wound on a drum

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07101917A Withdrawn EP1956179A1 (en) 2007-02-07 2007-02-07 Device with a shutter that can roll around a drum.

Country Status (12)

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US (1) US8272425B2 (en)
EP (2) EP1956179A1 (en)
JP (1) JP2010518284A (en)
CN (1) CN101631927B (en)
BR (1) BRPI0807200B1 (en)
CA (1) CA2676738C (en)
DK (1) DK2118425T3 (en)
ES (1) ES2401182T3 (en)
PL (1) PL2118425T3 (en)
PT (1) PT2118425E (en)
RU (1) RU2451148C2 (en)
WO (1) WO2008101796A1 (en)

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Also Published As

Publication number Publication date
BRPI0807200B1 (en) 2018-05-08
ES2401182T3 (en) 2013-04-17
RU2451148C2 (en) 2012-05-20
US20100101739A1 (en) 2010-04-29
CA2676738C (en) 2014-09-16
WO2008101796A1 (en) 2008-08-28
RU2009133274A (en) 2011-03-20
PT2118425E (en) 2013-03-26
EP1956179A1 (en) 2008-08-13
BRPI0807200A2 (en) 2014-06-03
CN101631927B (en) 2015-02-11
US8272425B2 (en) 2012-09-25
CA2676738A1 (en) 2008-08-28
EP2118425A1 (en) 2009-11-18
DK2118425T3 (en) 2013-03-18
CN101631927A (en) 2010-01-20
PL2118425T3 (en) 2013-05-31
JP2010518284A (en) 2010-05-27

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