EP0950792B1 - Anti roll-up security device for roller shutter - Google Patents

Anti roll-up security device for roller shutter Download PDF

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Publication number
EP0950792B1
EP0950792B1 EP19990390007 EP99390007A EP0950792B1 EP 0950792 B1 EP0950792 B1 EP 0950792B1 EP 19990390007 EP19990390007 EP 19990390007 EP 99390007 A EP99390007 A EP 99390007A EP 0950792 B1 EP0950792 B1 EP 0950792B1
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EP
European Patent Office
Prior art keywords
flange
stop
panel
winding
radial
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP19990390007
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German (de)
French (fr)
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EP0950792A1 (en
Inventor
Jean-Jacques Calvairac
Michel Albignac
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Moulages Plastiques du Midi MPM SAS
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Moulages Plastiques du Midi MPM SAS
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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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening
    • 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
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B2009/801—Locking arrangements
    • E06B2009/802—Locking arrangements located in or close to shutter box

Definitions

  • the invention relates to a flap anti-lift device rolling, making it possible to block said flap when it is deployed in the corresponding opening.
  • roller shutters The major drawback of such types of roller shutters is that they can be easily lifted from the outside, and that therefore they do not offer any guarantee against a possible breaking in.
  • a first type of locking device described in patents CH-A-645,430 and DE-U-9,303,720 include a retainer adapted to extend in the upper extension of a lateral slide, and designed so that when the curtain is raised, the blade upper blocking under this organ thus causing locking in deployed position of said deck.
  • the advantage of such a device is that it is simple design and therefore low cost.
  • the present invention aims to overcome all of the aforementioned drawbacks and aims at an anti-lift device for flaps Rollers with no accessories encroaching on the winding volume apron and can be used with standard size boxes.
  • Another object of the invention is to provide a device anti-lift designed to allow the front apron to settle blocking of the latter.
  • Another object of the invention is to provide a device anti-lift, the settings of which are very easy during installation on site.
  • Another object of the invention is to provide a device anti-lift ensuring possible refocusing of the blades between the outlet of the slides and winding shaft.
  • Another object of the invention is to provide a device anti-lift ensuring the connection between the winding shaft and the upper blade of the apron.
  • each stop blade integral with the upper blade follows a circular path around the winding shaft, then a spiral path (portion of spiral) at the end of unwinding.
  • Each flange stopper follows a circular path in the same radial plane as the corresponding blade stop.
  • each blade stop moves away from the winding shaft following a portion of a spiral and the trajectory of this blade stopper meets the circular trajectory of the flange stopper corresponding so that said stops are caused to brace one against each other by cooperation of their contact faces, first producing a settlement of the deck, then a blocking of the latter in its packed position.
  • the anti-lift device is designed to equip classic roller shutters, without changing the number of slats thereof.
  • each flange stopper and each blade stopper are located on either side of the deck, the winding volume of the latter around the winding shaft is not cluttered with any accessories encroaching on this volume. Therefore, for a given boot volume, we benefits from increased winding capacity.
  • each blade stop which follows a spiral portion trajectory is found at end of a turn against the winding shaft to then adopt a trajectory circular concentric with this tree.
  • This blade stop then escapes the circular trajectory of the flange stop which has a larger diameter.
  • Such a link constitutes a connecting element between the blade stopper and flange stopper which ensures perfect bracing between said stops, at the end of the unwinding, in a locking position frozen because of the triangulated assembly that these three elements form.
  • each link provides a connection between the deck and the winding shaft allowing, if not to remove the attachment means between said aprons and winding shaft, to at least reduce the number of these attachment means.
  • the anti-lift device also comprises advantageously, means for adjusting the radial position of the axis of articulation of each link relative to the associated flange stop.
  • the device anti-lift comprises two flange stops and two blade stops arranged in correspondence on either side of the deck. This is to ensure absolute security since the apron is blocked at its two ends.
  • each blade stop has a front face having a notch in V shape, each flange stop having a front face having a appendage capable of coming to be housed and blocked in said notch.
  • the bottom of the slide and the face opposite the flange stop have suitable transverse ridges to prohibit any movement of said flange stop after blocking.
  • the flange and the face in view of the plate have radial streaks capable of preventing any rotation of said plate after blocking.
  • each stop flange has radial longitudinal edges with an oblique profile so that avoid eccentricity of the blades at the outlet of the guide means.
  • the stops of flange which are positioned on either side of the apron thus play a possible re-centering function of the deck blades once they have emerged guiding means, a function which is further improved by the oblique profile of the longitudinal edges of these stops.
  • the anti-lift device shown mainly in Figures 1, 2, 3 first comprises a flange 11 integral in rotation with the winding shaft 3 and carrying a flange stop 12 adjustable radially.
  • This flange 11 is made up of two elements: first place, a radial annular flange 13 of external diameter greater than that of the winding shaft 3, having a sleeve 14 adapted to adjust on said winding shaft.
  • This flange 13 is pierced with orifices such as 15 evenly distributed.
  • the flange 11 is secured to a plate annular 34 itself secured to the toothed wheel 9 by means of spacers tubular such as 16 extending opposite the orifices 15 of the flange 13 to ensure the locking in rotation of this flange 11 relative to the shaft winding 3.
  • This flange 11 is, moreover, constituted by a flat element oblong 17 adapted to allow angular adjustment of the flange part 13 / sleeve 14.
  • the element 17 has, seen in radial plane, an outline outer substantially ovoid whose surface presents substantially on its two third an annular shape 18 of section adapted to be positioned around of the sleeve 14.
  • This annular portion 18 has, in addition, holes oblongs such as 19 arranged so as to be in correspondence each with an orifice 15 in the flange 13. This arrangement makes it possible to adjust angularly the element 17 relative to the flange 13 / sleeve 14 piece and therefore relative to the flange 11 and the winding shaft 3, then to block it in the desired position by means of any locking system such as screw / nut 20.
  • the faces in view of the flange 13 and the element 17 have radial grooves such as 21 shown in Figure 3.
  • the last third of the surface of element 17 has mainly two spaced radial internal ribs 22, 23 defining a slide 24 extending from the periphery of said element.
  • This slide 24 intended to accommodate the flange stopper 12 has a bottom wall provided with a radial axial light 25, and on both sides of this light, streaks transverse such as 26.
  • the stop 12 associated with the flange 11 has the shape of a rectangular parallelepiped block of dimensions adapted to be able to slide in the slide 24, and of height greater than that of said slide.
  • This stop 12 is pierced with an orifice 27 in correspondence with the light 25 on the slide enabling its radial position to be adjusted by means of any locking system such as screw / nut 28.
  • this stop 12 is provided with transverse ridges 29 in sight, in cooperation with the grooves 26 of the slide 24, to ensure a positive blocking of said stopper the interior of said slide.
  • a peripheral rib 30 ending in the form of a Y 31 whose end of the branch tangent to the external transverse edge of said stop.
  • the longitudinal edges of these ribs 30 have a oblique profile in order to facilitate a possible refocusing of the blades 2 of the deck 1 in backstage 10.
  • the anti-lift device also includes two stops 32 of blades 2 secured to the upper blade 2a, for example according to the classic technique of fitting the blade tips of current decks.
  • stops 32 of blades 2a consist of a strip whose upper part extends substantially above the upper edge of the upper blade 2a.
  • Each strip 32 also has the particularity to present an inclined upper edge forming a notch 33 in the form of V.
  • the anti-lift device comprises, finally, associated with each flange stopper 12 / blade stopper 32 assembly, a link 35 articulated respectively on each of said stops, and adapted to form with these last a triangulated set of which it constitutes the base, at the end of unwinding when these stops are braced against each other.
  • the axis of articulation of this link 35 on the stop flange 12 consists in the example of the screw of the screw / nut assembly 28 extending through an oblong radial lumen 36 formed in said flange stop so as to adjust the radial position of said axis hinge.
  • the link 35 is arranged so as to be arranged in lateral projection relative to the blade upper 2a, so as not to interfere with the winding.
  • FIGS. 4a to 6b represents a shaft end winding 3, it being understood that the opposite end of this end piece is equipped with an identical anti-lift device.
  • the stop 32 of blade 2 is wound around the winding tube 3, that is to say according to a circular trajectory with a diameter smaller than that of the flange stop 12.

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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

L'invention concerne un dispositif anti-relevage de volet roulant, permettant de bloquer ledit volet lorsqu'il se trouve déployé dans l'ouverture correspondante.The invention relates to a flap anti-lift device rolling, making it possible to block said flap when it is deployed in the corresponding opening.

Les volets roulants actuels comportent de façon classique :

  • un tablier constitué d'une pluralité de lames articulées les unes par rapport aux autres,
  • un arbre d'enroulement relié par des moyens d'attache à une des lames, dite supérieure du tablier, et généralement logé dans un coffre comportant une sous-face présentant une fente longitudinale apte à permettre le passage du tablier,
  • des moyens d'entraínement en rotation de l'arbre d'enroulement aptes à permettre de dérouler le tablier vers une position basse déployée où il obture l'ouverture correspondante, et d'enrouler ce tablier vers une position haute où ce dernier est enroulé sur sa plus grande longueur autour de l'arbre d'enroulement et dégage l'ouverture,
  • et des moyens de guidage du tablier, en particulier glissières latérales, disposées de part et d'autre de l'ouverture de façon à loger les extrémités latérales des lames lors des manoeuvres du tablier et à assurer le guidage de ces dernières.
Current roller shutters typically include:
  • an apron made up of a plurality of blades articulated with respect to each other,
  • a winding shaft connected by means of attachment to one of the blades, called the top of the deck, and generally housed in a trunk comprising an underside having a longitudinal slot capable of allowing the deck to pass,
  • means for driving in rotation of the winding shaft able to allow the deck to be unwound towards a deployed low position where it closes the corresponding opening, and to wind this deck towards a high position where the latter is wound on its greatest length around the winding shaft and clears the opening,
  • and means for guiding the apron, in particular lateral slides, arranged on either side of the opening so as to accommodate the lateral ends of the blades during the maneuvers of the apron and to guide the latter.

L'inconvénient majeur de tels types de volets roulants réside dans le fait qu'ils peuvent être facilement soulevés depuis l'extérieur, et que par conséquent, ils n'offrent aucune garantie contre une éventuelle effraction.The major drawback of such types of roller shutters is that they can be easily lifted from the outside, and that therefore they do not offer any guarantee against a possible breaking in.

Pour pallier cet inconvénient, il a été imaginé divers types de dispositifs de verrouillage destinés à empêcher de soulever le tablier depuis l'extérieur lorsque celui-ci obture l'ouverture correspondante, et à autoriser l'enroulement de ce tablier en utilisant les moyens d'entraínement en rotation de l'arbre d'enroulement, sans nécessiter de manoeuvre spécifique préalable en vue d'obtenir le déverrouillage. To overcome this drawback, various types have been devised locking devices to prevent lifting of the bulkhead from the outside when it closes the corresponding opening, and to authorize the winding of this deck using the rotational drive means of the winding shaft, without requiring any specific prior maneuver in order to get the unlock.

Un premier type de dispositif de verrouillage, décrit dans les brevets CH-A-645 430 et DE-U-9 303 720 comporte un organe de retenue adapté pour s'étendre dans le prolongement supérieur d'une coulisse latérale, et conçu de façon que, en cas de tentative de soulèvement du tablier, la lame supérieure vienne en blocage sous cet organe provoquant ainsi le verrouillage en position déployée dudit tablier. Un tel dispositif a pour avantage d'être d'une conception simple et donc d'un faible coût de revient.A first type of locking device, described in patents CH-A-645,430 and DE-U-9,303,720 include a retainer adapted to extend in the upper extension of a lateral slide, and designed so that when the curtain is raised, the blade upper blocking under this organ thus causing locking in deployed position of said deck. The advantage of such a device is that it is simple design and therefore low cost.

Par contre, l'inconvénient majeur de ce type de dispositif de verrouillage réside dans le fait qu'il impose d'autoriser un jeu entre le bas du tablier et le seuil de l'ouverture afin d'obtenir un positionnement correct de la lame supérieure garantissant sa coopération effective avec l'organe de retenue. De ce fait, il est donc aisé d'introduire un objet sous la lame inférieure du tablier et, par un effet de levier, d'exercer un effort permettant de soulever ledit tablier.However, the major drawback of this type of device of locking resides in the fact that it requires to authorize a clearance between the bottom of the deck and the threshold of the opening in order to obtain a correct positioning of the upper blade ensuring effective cooperation with the retaining member. Therefore, it is therefore easy to introduce an object under the lower blade of the deck and, by leverage, to exert an effort to lift said deck.

Un deuxième type de dispositif de verrouillage, décrit dans le brevet FR 2.312.639, comprend principalement :

  • au moins un flasque solidaire de l'arbre d'enroulement et possédant une butée positionnée en bordure d'un des côtés latéraux du tablier,
  • associée à chaque flasque, une butée de lame supérieure montée en vis-à-vis du flasque de façon à s'étendre latéralement dans le prolongement de ladite lame supérieure, dans un même plan radial que la butée de flasque,
  • une fourche de guidage s'étendant dans le prolongement de la glissière latérale située en vis-à-vis de chaque flasque,
  • les butées de flasque et de lame étant disposées de façon à suivre des trajectoires circulaires de diamètres différents, supérieur pour la butée de flasque, en cours d'enroulement et de déroulement des lames courantes du tablier, et étant adaptées pour que, d'une part, la butée de lame vienne se loger dans la fourche de guidage et, d'autre part, la butée de flasque vienne obturer ladite fourche, lorsque ladite butée de lame suit une trajectoire en spirale l'écartant de l'arbre d'enroulement jusqu'à rejoindre la trajectoire circulaire de ladite butée de flasque.
A second type of locking device, described in patent FR 2,312,639, mainly comprises:
  • at least one flange secured to the winding shaft and having a stop positioned at the edge of one of the lateral sides of the deck,
  • associated with each flange, an upper blade stop mounted opposite the flange so as to extend laterally in the extension of said upper blade, in the same radial plane as the flange stop,
  • a guide fork extending in the extension of the lateral slide located opposite each flange,
  • the flange and blade stops being arranged so as to follow circular trajectories of different diameters, greater for the flange stop, during winding and unwinding of the current blades of the deck, and being adapted so that, from a on the one hand, the blade stop comes to be housed in the guide fork and, on the other hand, the flange stop comes to close off said fork, when said blade stop follows a spiral path away from the winding shaft until joining the circular trajectory of said flange stop.

Un tel dispositif de verrouillage présente toutefois le même inconvénient que celui sus-mentionné, du fait que subsiste de façon quasi-obligatoire un jeu entre les butées de flasque et de lame dans la position basse déroulée du tablier. De plus, un tel dispositif n'autorise aucun réglage, de sorte que la hauteur du tablier est prédéfinie, sans possibilité d'ajustage sur chantier. Enfin, ce dispositif nécessite d'équiper les volets roulants d'une lame supplémentaire par rapport aux volets roulants classiques, destinée à venir se positionner en regard des fourches, au-dessus des coulisses, en position basse déroulée du tablier. De ce fait, il conduit à augmenter d'une part le coût du tablier et d'autre part le diamètre dudit tablier dans sa position enroulée.However, such a locking device has the same disadvantage than that mentioned above, due to the fact that it remains almost compulsory a clearance between the flange and blade stops in the low position rolled out of the apron. In addition, such a device does not allow any adjustment, so that the deck height is predefined, without the possibility of adjustment on site. Finally, this device requires equipping the roller shutters with a blade additional to conventional roller shutters, intended to come position next to the forks, above the slides, in the low position rolled out of the apron. Therefore, it leads to increase on the one hand the cost of the deck and on the other hand the diameter of said deck in its rolled up position.

Pour pallier l'inconvénient relatif aux possibilités d'effraction, il a été conçu des dispositifs de verrouillage, tels que notamment décrits dans le GM allemand 91.01307 et dans le brevet FR 2.696.779, dans lequel l'arbre d'enroulement est relié au tablier par un jeu de coquilles cintrées articulées l'une par rapport à l'autre, conçues de façon à former, dans la position déployée du tablier, un levier venant sous une butée fixe, adapté pour empêcher tout soulèvement de l'extérieur du tablier.To overcome the disadvantage relating to the possibilities burglary, it was designed locking devices, such as in particular described in German GM 91.01307 and in patent FR 2,696,779, in which the winding shaft is connected to the deck by a set of curved shells articulated with respect to each other, designed so as to form, in the position deployed from the apron, a lever coming under a fixed stop, adapted to prevent any lifting from the outside of the deck.

Toutefois, de tels dispositifs de verrouillage présentent plusieurs inconvénients. En effet, ils sont conçus pour être intégrés sur les volets roulants lors de la fabrication de ces derniers et sont donc difficilement mis en place dans le cadre de rénovation de volets roulants déjà installés. De plus, ils sont d'une relative complexité et leur installation augmente de façon notable le prix de revient total du volet roulant. Par ailleurs, lors de la mise en place sur chantier, tout réglage qu'imposent les variations fréquentes de hauteur entre l'axe d'enroulement et l'appui de l'ouverture, amène à démonter entièrement le volet roulant en vue d'adapter la position du dispositif de verrouillage, et l'installation de tels volets roulants s'avère donc longue et délicate. Enfin, il convient de noter que la conception de tels dispositifs de verrouillage qui consiste à relier l'arbre d'enroulement au tablier par un jeu de coquilles conduit à une augmentation du diamètre du tablier dans sa position enroulée et, pour un coffre de dimensions données, à une limitation du diamètre d'enroulement. However, such locking devices have several disadvantages. Indeed, they are designed to be integrated on the shutters rolling during the manufacture of these and are therefore difficult to place within the framework of renovation of rolling shutters already installed. In addition, they are relatively complex and their installation significantly increases the total cost of the roller shutter. Furthermore, when setting up on site, any adjustment imposed by frequent variations in height between the axis winding and support of the opening, leads to completely dismantle the shutter rolling in order to adapt the position of the locking device, and the installation such roller shutters therefore prove to be long and delicate. Finally, it should be noted that the design of such locking devices which consists in connecting the shaft winding the deck by a set of shells leads to an increase in diameter of the apron in its rolled up position and, for a trunk of dimensions given, to a limitation of the winding diameter.

Ce dernier inconvénient s'avère d'ailleurs quasiment commun à tous les dispositifs de verrouillage actuels de sorte que les dimensions des coffres de volets roulants doivent être adaptées à celles des volets roulants et non comme dans la pratique usuelle consister en une gamme de dimensions prédéfinies.This last drawback is also almost common to all current locking devices so that the dimensions roller shutter boxes must be adapted to those of the roller shutters and not as in usual practice consist of a range of dimensions predefined.

La présente invention vise à pallier l'ensemble des inconvénients précités et a pour objectif un dispositif anti-relevage de volets roulants ne comportant aucun accessoire empiétant sur le volume d'enroulement du tablier et pouvant être utilisé avec des coffres de dimensions standards.The present invention aims to overcome all of the aforementioned drawbacks and aims at an anti-lift device for flaps Rollers with no accessories encroaching on the winding volume apron and can be used with standard size boxes.

Un autre objectif de l'invention est de fournir un dispositif anti-relevage conçu pour permettre d'obtenir un tassement du tablier avant blocage de ce dernier.Another object of the invention is to provide a device anti-lift designed to allow the front apron to settle blocking of the latter.

Un autre objectif de l'invention est de fournir un dispositif anti-relevage dont les réglages sont très aisés lors de la pose sur chantier.Another object of the invention is to provide a device anti-lift, the settings of which are very easy during installation on site.

Un autre objectif de l'invention est de fournir un dispositif anti-relevage assurant un éventuel recentrage des lames entre la sortie des glissières et l'arbre d'enroulement.Another object of the invention is to provide a device anti-lift ensuring possible refocusing of the blades between the outlet of the slides and winding shaft.

Un autre objectif de l'invention est de fournir un dispositif anti-relevage assurant la liaison entre l'arbre d'enroulement et la lame supérieure du tablier.Another object of the invention is to provide a device anti-lift ensuring the connection between the winding shaft and the upper blade of the apron.

A cet effet, l'invention vise un dispositif anti-relevage pour des volets roulants tels que décrits dans le préambule ci-dessus, comportant :

  • au moins un flasque solidaire de l'arbre d'enroulement et possédant une butée positionnée en bordure d'un des côtés latéraux du tablier,
  • associée à chaque flasque, une butée de lame supérieure montée en vis-à-vis du flasque de façon à s'étendre latéralement dans le prolongement de ladite lame supérieure, dans un même plan radial que la butée de flasque,
  • les butées de flasque et de lame étant disposées de façon à suivre des trajectoires circulaires de diamètres différents, supérieur pour la butée de flasque, en cours d'enroulement et de déroulement des lames courantes du tablier, et étant adaptées pour que la butée de flasque vienne se positionner au-dessus de la butée de lame , en fin de déroulement, lorsque ladite butée de lame suit une trajectoire en spirale l'écartant de l'arbre d'enroulement jusqu'à rejoindre la trajectoire circulaire de ladite butée de flasque.
To this end, the invention relates to an anti-lift device for rolling shutters as described in the preamble above, comprising:
  • at least one flange secured to the winding shaft and having a stop positioned at the edge of one of the lateral sides of the deck,
  • associated with each flange, an upper blade stop mounted opposite the flange so as to extend laterally in the extension of said upper blade, in the same radial plane as the flange stop,
  • the flange and blade stops being arranged so as to follow circular trajectories of different diameters, greater for the flange stop, during winding and unwinding of the current blades of the deck, and being adapted so that the flange stop comes to position itself above the blade stop, at the end of the unwinding, when said blade stop follows a spiral trajectory moving it away from the winding shaft until it joins the circular trajectory of said flange stop.

Selon l'invention, ce dispositif anti-relevage se caractérise en ce que :

  • chaque butée de lame s'étend partiellement dans le prolongement supérieur de la lame supérieure du tablier,
  • les butées de lame et de flasque présentent des faces frontales conjuguées aptes à permettre l'autoblocage desdites butées en fin de déroulement, dans une position où ces dernières sont arc-boutées l'une contre l'autre, la face frontale d'une des butées présentant une échancrure, et la face frontale de l'autre butée formant un appendice apte à venir se loger et se bloquer dans ladite échancrure.
  • chaque flasque est constitué de deux pièces consistant en une bride de solidarisation à l'arbre d'enroulement, et en une plaque sur laquelle est montée la butée de flasque, ledit flasque comprenant :
    • des moyens de réglage de la position angulaire de la plaque relativement à la bride, et de blocage de ladite plaque sur ladite bride dans des positions angulaires prédéterminées,
    • des moyens de réglage de la position radiale de la butée de flasque, et de blocage de cette dernière sur la plaque dans des positions radiales prédéterminées.
According to the invention, this anti-lift device is characterized in that:
  • each blade stopper partially extends in the upper extension of the upper blade of the deck,
  • the blade and flange stops have conjugate end faces capable of allowing the self-locking of said stops at the end of the unwinding, in a position where the latter are braced one against the other, the front face of one of the stops having a notch, and the front face of the other stop forming an appendage capable of being received and blocked in said notch.
  • each flange consists of two parts consisting of a flange for securing to the winding shaft, and a plate on which the flange stopper is mounted, said flange comprising:
    • means for adjusting the angular position of the plate relative to the flange, and for locking said plate on said flange in predetermined angular positions,
    • means for adjusting the radial position of the flange stop, and for locking the latter on the plate in predetermined radial positions.

Selon l'invention, lorsque le volet est déroulé, chaque butée de lame solidaire de la lame supérieure suit une trajectoire circulaire autour de l'arbre d'enroulement, puis une trajectoire en spirale (portion de spirale) en fin de déroulement. Chaque butée de flasque, quant à elle, suit une trajectoire circulaire dans le même plan radial que la butée de lame correspondante.According to the invention, when the shutter is unwound, each stop blade integral with the upper blade follows a circular path around the winding shaft, then a spiral path (portion of spiral) at the end of unwinding. Each flange stopper, meanwhile, follows a circular path in the same radial plane as the corresponding blade stop.

(Il est à noter que dans la description, on entend définir par plan «radial» un plan perpendiculaire à l'axe de rotation de l'arbre d'enroulement).(It should be noted that in the description, we mean to define by "radial" plane a plane perpendicular to the axis of rotation of the shaft winding).

En fin de déroulement, chaque butée de lame s'écarte de l'arbre d'enroulement en suivant une portion de spirale et la trajectoire de cette butée de lame vient rencontrer la trajectoire circulaire de la butée de flasque correspondante de sorte que lesdites butées sont amenées à s'arc-bouter l'une contre l'autre par coopération de leurs faces de contact, produisant d'abord un tassement du tablier, puis un blocage de ce dernier dans sa position tassée.At the end of the unwinding, each blade stop moves away from the winding shaft following a portion of a spiral and the trajectory of this blade stopper meets the circular trajectory of the flange stopper corresponding so that said stops are caused to brace one against each other by cooperation of their contact faces, first producing a settlement of the deck, then a blocking of the latter in its packed position.

Un avantage essentiel du dispositif anti-relevage selon l'invention résulte du fait qu'il garantit de tasser automatiquement le tablier avant le blocage de façon à interdire toute possibilité de soulever ce tablier. En effet, ce tassement est garanti du fait que :

  • tel que précité, les butées sont agencées pour venir s'arcbouter l'une contre l'autre en fin de déroulement,
  • les moyens de réglage angulaire et radial de la butée de flasque permettent d'ajuster facilement la position de verrouillage, de par l'intérieur du volet roulant, grâce à l'espace laissé libre par ledit tablier, et d'adapter cette position en fonction des variations de hauteur des seuils.
An essential advantage of the anti-lift device according to the invention results from the fact that it guarantees to automatically pack the apron before locking so as to prevent any possibility of lifting this apron. Indeed, this settlement is guaranteed by the fact that:
  • as mentioned above, the stops are arranged to come and hang up against each other at the end of the course,
  • the angular and radial adjustment means of the flange stop make it possible to easily adjust the locking position, from the inside of the shutter, thanks to the space left free by said apron, and to adapt this position as a function variations in threshold height.

Il est également à noter que du fait, d'une part, de l'agencement des butées adaptées pour venir s'arc-bouter l'une contre l'autre en fin de déroulement, et d'autre part, de la disposition de la lame de butée s'étendant partiellement dans le prolongement de la lame supérieure, ladite lame supérieure reste engagée dans les glissières latérales, en fin de déroulement.It should also be noted that, on the one hand, the arrangement of suitable stops to come and butt against each other in end of unwinding, and secondly, the arrangement of the stop blade partially extending in the extension of the upper blade, said blade upper remains engaged in the side rails, at the end of the course.

Ainsi, le dispositif anti-relevage est conçu pour équiper des volets roulants classiques, sans modification du nombre de lames de ces derniers.Thus, the anti-lift device is designed to equip classic roller shutters, without changing the number of slats thereof.

Par ailleurs, du fait que chaque butée de flasque et chaque butée de lame sont situées de part et d'autre du tablier, le volume d'enroulement de ce dernier autour de l'arbre d'enroulement n'est encombré d'aucun accessoire empiétant sur ce volume. De ce fait, pour un volume de coffre donné, on bénéficie d'une capacité d'enroulement accrue.Furthermore, since each flange stopper and each blade stopper are located on either side of the deck, the winding volume of the latter around the winding shaft is not cluttered with any accessories encroaching on this volume. Therefore, for a given boot volume, we benefits from increased winding capacity.

En outre, comme noté ci-dessus, lors de l'enroulement, chaque butée de lame qui suit une trajectoire en portion de spirale se retrouve au bout d'un tour contre l'arbre d'enroulement pour adopter ensuite une trajectoire circulaire concentrique à cet arbre. Cette butée de lame échappe alors à la trajectoire circulaire de la butée de flasque qui présente un diamètre supérieur. Un tel fonctionnement évite ainsi toute perturbation de l'enroulement du tablier malgré la présence des butées.Also, as noted above, when winding, each blade stop which follows a spiral portion trajectory is found at end of a turn against the winding shaft to then adopt a trajectory circular concentric with this tree. This blade stop then escapes the circular trajectory of the flange stop which has a larger diameter. Such an operation thus avoids any disturbance of the winding of the deck despite the presence of the stops.

Selon un mode de réalisation avantageux, le dispositif anti-relevage comprend, associé à chaque flasque, une biellette articulée autour de deux axes solidaires respectivement de la butée de flasque et de la butée de lame, lesdits axes étant ménagés de façon que ladite biellette pivote entre :

  • une position radialement déployée, obtenue dans la position basse déroulée du tablier, dans laquelle cette biellette forme la base d'un ensemble triangulé dont les deux butées arc-boutées forment les côtés,
  • et une position radialement escamotée en direction de l'arbre d'enroulement, obtenue lors de l'enroulement du tablier.
According to an advantageous embodiment, the anti-lifting device comprises, associated with each flange, a link articulated around two axes secured respectively to the flange stop and the blade stop, said axes being arranged so that said link pivots Between :
  • a radially deployed position, obtained in the lower unrolled position of the deck, in which this link forms the base of a triangulated assembly the two arcuate abutments of which form the sides,
  • and a radially retracted position in the direction of the winding shaft, obtained during the winding of the deck.

Une telle biellette constitue un élément de liaison entre la butée de lame et la butée de flasque qui permet d'assurer un parfait arc-boutement entre lesdites butées, en fin de déroulement, dans une position de verrouillage figée du fait de l'ensemble triangulé que forment ces trois éléments.Such a link constitutes a connecting element between the blade stopper and flange stopper which ensures perfect bracing between said stops, at the end of the unwinding, in a locking position frozen because of the triangulated assembly that these three elements form.

De plus, chaque biellette assure une liaison entre le tablier et l'arbre d'enroulement permettant, si ce n'est de supprimer les moyens d'attache classiques entre lesdits tabliers et arbre d'enroulement, d'au moins diminuer le nombre de ces moyens d'attache.In addition, each link provides a connection between the deck and the winding shaft allowing, if not to remove the attachment means between said aprons and winding shaft, to at least reduce the number of these attachment means.

Le dispositif anti-relevage comporte en outre avantageusement, des moyens de réglage de la position radiale de l'axe d'articulation de chaque biellette relativement à la butée de flasque associée.The anti-lift device also comprises advantageously, means for adjusting the radial position of the axis of articulation of each link relative to the associated flange stop.

Selon une autre caractéristique de l'invention, le dispositif anti-relevage comporte deux butées de flasque et deux butées de lame disposées en correspondance de part et d'autre du tablier. Cette disposition vise à garantir une sécurité absolue puisque le tablier se trouve bloqué à ses deux extrémités.According to another characteristic of the invention, the device anti-lift comprises two flange stops and two blade stops arranged in correspondence on either side of the deck. This is to ensure absolute security since the apron is blocked at its two ends.

Par ailleurs, selon une autre caractéristique de l'invention, chaque butée de lame présente une face frontale présentant une échancrure en forme de V, chaque butée de flasque présentant une face frontale présentant un appendice apte à venir se loger et se bloquer dans ladite échancrure.Furthermore, according to another characteristic of the invention, each blade stop has a front face having a notch in V shape, each flange stop having a front face having a appendage capable of coming to be housed and blocked in said notch.

En outre, les moyens de réglage de la position radiale de la butée de flasque comprennent avantageusement :

  • une glissière radiale de largeur conjuguée de la butée de flasque, ménagée dans la plaque, ladite glissière présentant une paroi de fond percée d'une lumière radiale,
  • un perçage traversant ménagé dans la butée de flasque en regard de la lumière radiale de la glissière,
  • des éléments de blocage aptes à s'étendre au travers de la lumière radiale et du perçage.
In addition, the means for adjusting the radial position of the flange stop advantageously include:
  • a radial slide of width conjugate with the flange stop, formed in the plate, said slide having a bottom wall pierced with a radial lumen,
  • a through hole made in the flange stopper facing the radial lumen of the slide,
  • blocking elements able to extend through the radial lumen and the bore.

De plus, selon un mode de réalisation avantageux, les moyens de réglage de la position angulaire de la plaque de chaque flasque comprennent:

  • une pluralité d'orifices ménagés dans la bride et uniformément répartis le long d'un diamètre déterminé relativement à l'axe de l'arbre d'enroulement,
  • une pluralité de trous oblongs ménagés dans la plaque de façon à se trouver chacun en correspondance avec un orifice de la bride,
  • des éléments de blocage aptes à s'étendre au travers des orifices et des trous oblongs.
In addition, according to an advantageous embodiment, the means for adjusting the angular position of the plate of each flange include:
  • a plurality of orifices provided in the flange and uniformly distributed along a determined diameter relative to the axis of the winding shaft,
  • a plurality of oblong holes made in the plate so as to be each in correspondence with an orifice in the flange,
  • blocking elements capable of extending through orifices and oblong holes.

Par ailleurs, et de façon avantageuse, le fond de la glissière et la face en regard de la butée de flasque présentent des stries transversales aptes à interdire tout déplacement de ladite butée de flasque après blocage.Furthermore, and advantageously, the bottom of the slide and the face opposite the flange stop have suitable transverse ridges to prohibit any movement of said flange stop after blocking.

De même, et préférentiellement, la bride et la face en regard de la plaque présentent des stries radiales aptes à interdire toute rotation angulaire de ladite plaque après blocage.Likewise, and preferably, the flange and the face in view of the plate have radial streaks capable of preventing any rotation of said plate after blocking.

Selon une autre caractéristique de l'invention, chaque butée de flasque présente des bords longitudinaux radiaux à profil oblique de façon à éviter un excentrement des lames en sortie des moyens de guidage. Les butées de flasque qui sont positionnées de part et d'autre du tablier jouent ainsi une fonction de recentrage éventuel des lames du tablier une fois celles-ci émergées des moyens de guidage, fonction, en outre, améliorée par le profil oblique des bords longitudinaux de ces butées.According to another characteristic of the invention, each stop flange has radial longitudinal edges with an oblique profile so that avoid eccentricity of the blades at the outlet of the guide means. The stops of flange which are positioned on either side of the apron thus play a possible re-centering function of the deck blades once they have emerged guiding means, a function which is further improved by the oblique profile of the longitudinal edges of these stops.

D'autres caractéristiques, buts et avantages de l'invention ressortiront de la description détaillée qui suit en référence aux dessins annexés qui en représentent à titre d'exemple non limitatif un mode de réalisation préférentiel. Sur ces dessins qui font partie intégrante de la présente description :

  • la figure 1 est une vue en perspective partielle d'un volet roulant équipé d'un dispositif anti-relevage conforme à l'invention,
  • la figure 2 est une coupe par un plan radial AA du dispositif anti-relevage selon l'invention,
  • la figure 3 est une coupe par un plan transversal BB de ce dispositif anti-relevage,
  • et les figures 4a, 4b, 5a, 5b, 6a, 6b sont des schémas respectivement en vue radiale et en vue longitudinale illustrant le fonctionnement du dispositif de relevage.
Other characteristics, objects and advantages of the invention will emerge from the detailed description which follows, with reference to the appended drawings which represent, by way of non-limiting example, a preferred embodiment. On these drawings which form an integral part of this description:
  • FIG. 1 is a partial perspective view of a rolling shutter fitted with an anti-lift device according to the invention,
  • FIG. 2 is a section through a radial plane AA of the anti-lift device according to the invention,
  • FIG. 3 is a section through a transverse plane BB of this anti-lifting device,
  • and FIGS. 4a, 4b, 5a, 5b, 6a, 6b are diagrams respectively in radial view and in longitudinal view illustrating the operation of the lifting device.

Le dispositif anti-relevage représenté aux figures est destiné à équiper un volet roulant de type classique comprenant principalement :

  • un tablier 1 constitué d'une pluralité de lames telles que 2 dont une lame supérieure 2a articulées les unes par rapport aux autres,
  • un arbre d'enroulement 3 logé dans un coffre dont sont représentées principalement une des joues 4 sur laquelle est montée libre en rotation ledit arbre d'enroulement, et une sous-face amovible 5 (figures 4a, 5a, 6a),
  • des moyens d'attache constitués en l'exemple par des bandes métalliques à ressort 6 reliant l'arbre d'enroulement 3 et la lame supérieure 2a du tablier 1, aptes à solliciter ladite lame supérieure dans la position déroulée dudit tablier de façon à amener l'ensemble des lames 2 dans un même plan vertical,
  • des moyens d'entraínement en rotation de l'arbre d'enroulement 3 consistant en l'exemple en une manivelle 7 dotée à son extrémité supérieure d'un pignon conique 8 engrenant avec une roue dentée 9 solidaire de l'arbre d'enroulement 3,
  • et deux coulisses latérales en forme de U, telles que 10 disposées de part et d'autre de l'ouverture de façon à loger les extrémités latérales des lames 2 lors des manoeuvres du tablier 1 et assurer le guidage de ce dernier.
The anti-lift device shown in the figures is intended to equip a rolling shutter of the conventional type mainly comprising:
  • an apron 1 made up of a plurality of blades such as 2 including an upper blade 2a articulated with respect to each other,
  • a winding shaft 3 housed in a trunk of which are mainly represented one of the cheeks 4 on which said winding shaft is mounted to rotate freely, and a removable underside 5 (FIGS. 4a, 5a, 6a),
  • fastening means constituted in the example by metal spring bands 6 connecting the winding shaft 3 and the upper blade 2a of the deck 1, adapted to urge said upper blade in the unrolled position of said deck so as to bring all the blades 2 in the same vertical plane,
  • means for driving in rotation of the winding shaft 3 consisting in the example of a crank 7 provided at its upper end with a bevel gear 8 meshing with a toothed wheel 9 secured to the winding shaft 3 ,
  • and two U-shaped lateral slides, such as 10 arranged on either side of the opening so as to accommodate the lateral ends of the blades 2 during the operations of the deck 1 and to guide the latter.

Le dispositif anti-relevage représenté principalement aux figures 1, 2, 3 comporte en premier lieu un flasque 11 solidaire en rotation de l'arbre d'enroulement 3 et portant une butée de flasque 12 réglable radialement.The anti-lift device shown mainly in Figures 1, 2, 3 first comprises a flange 11 integral in rotation with the winding shaft 3 and carrying a flange stop 12 adjustable radially.

Ce flasque 11 est constitué de deux éléments : en premier lieu, une bride annulaire radiale 13 de diamètre externe supérieur à celui de l'arbre d'enroulement 3, présentant un manchon 14 adapté pour venir s'ajuster sur ledit arbre d'enroulement. Cette bride 13 est percée d'orifices tels que 15 uniformément répartis. De plus, le flasque 11 est solidarisé à une platine annulaire 34 elle-même solidaire de la roue dentée 9 au moyen d'entretoises tubulaires telles que 16 s'étendant en regard des orifices 15 de la bride 13 permettant d'assurer le blocage en rotation de ce flasque 11 relativement à l'arbre d'enroulement 3.This flange 11 is made up of two elements: first place, a radial annular flange 13 of external diameter greater than that of the winding shaft 3, having a sleeve 14 adapted to adjust on said winding shaft. This flange 13 is pierced with orifices such as 15 evenly distributed. In addition, the flange 11 is secured to a plate annular 34 itself secured to the toothed wheel 9 by means of spacers tubular such as 16 extending opposite the orifices 15 of the flange 13 to ensure the locking in rotation of this flange 11 relative to the shaft winding 3.

Ce flasque 11 est, en outre, constitué par un élément plat oblong 17 adapté pour permettre un réglage angulaire de la pièce bride 13/manchon 14. A cet effet, l'élément 17 présente, vu en plan radial, un contour externe sensiblement ovoïde dont la surface présente sensiblement sur ses deux tiers une forme annulaire 18 de section adaptée pour venir se positionner autour du manchon 14.This flange 11 is, moreover, constituted by a flat element oblong 17 adapted to allow angular adjustment of the flange part 13 / sleeve 14. For this purpose, the element 17 has, seen in radial plane, an outline outer substantially ovoid whose surface presents substantially on its two third an annular shape 18 of section adapted to be positioned around of the sleeve 14.

Cette portion annulaire 18 possède, en outre, des trous oblongs tels que 19 ménagés de façon à se trouver en correspondance chacun avec un orifice 15 de la bride 13. Cette disposition permet de régler angulairement l'élément 17 par rapport à la pièce bride 13/manchon 14 et donc par rapport au flasque 11 et à l'arbre d'enroulement 3, puis de le bloquer dans la position souhaitée au moyen de tout système de blocage tel que vis/écrou 20.This annular portion 18 has, in addition, holes oblongs such as 19 arranged so as to be in correspondence each with an orifice 15 in the flange 13. This arrangement makes it possible to adjust angularly the element 17 relative to the flange 13 / sleeve 14 piece and therefore relative to the flange 11 and the winding shaft 3, then to block it in the desired position by means of any locking system such as screw / nut 20.

De plus, en vue d'assurer un blocage positif, les faces en regard de la bride 13 et de l'élément 17 présentent des stries radiales telles que 21 représentées à la figure 3.In addition, in order to ensure a positive blocking, the faces in view of the flange 13 and the element 17 have radial grooves such as 21 shown in Figure 3.

Le dernier tiers de la surface de l'élément 17 présente principalement deux nervures internes radiales espacées 22, 23 délimitant une glissière 24 s'étendant à partir de la périphérie dudit élément. Cette glissière 24 destinée à loger la butée de flasque 12 présente une paroi de fond dotée d'une lumière axiale radiale 25, et de part et d'autre de cette lumière, des stries transversales telles que 26.The last third of the surface of element 17 has mainly two spaced radial internal ribs 22, 23 defining a slide 24 extending from the periphery of said element. This slide 24 intended to accommodate the flange stopper 12 has a bottom wall provided with a radial axial light 25, and on both sides of this light, streaks transverse such as 26.

La butée 12 associée au flasque 11 présente la forme d'un bloc parallélépipédique rectangle de dimensions adaptées pour pouvoir coulisser dans la glissière 24, et de hauteur supérieure à celle de ladite glissière.The stop 12 associated with the flange 11 has the shape of a rectangular parallelepiped block of dimensions adapted to be able to slide in the slide 24, and of height greater than that of said slide.

Cette butée 12 est percée d'un orifice 27 en correspondance avec la lumière 25 de la glissière permettant de régler sa position radiale au moyen de tout système de blocage tel que vis/écrou 28.This stop 12 is pierced with an orifice 27 in correspondence with the light 25 on the slide enabling its radial position to be adjusted by means of any locking system such as screw / nut 28.

De plus, tel que représenté à la figure 3, la face inférieure de cette butée 12 est dotée de stries transversales 29 en vue, en coopération avec les stries 26 de la glissière 24, d'assurer un blocage positif de ladite butée à l'intérieur de ladite glissière.In addition, as shown in Figure 3, the underside of this stop 12 is provided with transverse ridges 29 in sight, in cooperation with the grooves 26 of the slide 24, to ensure a positive blocking of said stopper the interior of said slide.

En dernier lieu, concernant cette butée 12, sa face supérieure est bordée d'une nervure périphérique 30 se terminant sous la forme d'un Y 31 dont l'extrémité de la branche tangente le bord transversal externe de ladite butée. De plus, les bords longitudinaux de ces nervures 30 présentent un profil oblique afin de faciliter un éventuel recentrage des lames 2 du tablier 1 en sortie des coulisses 10.Finally, concerning this stop 12, its face upper is bordered by a peripheral rib 30 ending in the form of a Y 31 whose end of the branch tangent to the external transverse edge of said stop. In addition, the longitudinal edges of these ribs 30 have a oblique profile in order to facilitate a possible refocusing of the blades 2 of the deck 1 in backstage 10.

Le dispositif anti-relevage comprend, en outre, deux butées 32 de lames 2 solidarisées à la lame supérieure 2a, par exemple selon la technique classique de mise en place des embouts de lames des tabliers actuels.The anti-lift device also includes two stops 32 of blades 2 secured to the upper blade 2a, for example according to the classic technique of fitting the blade tips of current decks.

Ces butées 32 de lames 2a consistent en une réglette dont la partie supérieure s'étend sensiblement au-dessus de la tranche supérieure de la lame supérieure 2a. Chaque réglette 32 présente en outre la particularité de présenter une tranche supérieure inclinée formant une échancrure 33 en forme de V.These stops 32 of blades 2a consist of a strip whose upper part extends substantially above the upper edge of the upper blade 2a. Each strip 32 also has the particularity to present an inclined upper edge forming a notch 33 in the form of V.

Le dispositif anti-relevage comprend, enfin, associée à chaque ensemble butée de flasque 12 / butée de lame 32, une biellette 35 articulée respectivement sur chacune desdites butées, et adaptée pour former avec ces dernières un ensemble triangulé dont elle constitue la base, en fin de déroulement lorsque ces butées sont arc-boutées l'une contre l'autre. The anti-lift device comprises, finally, associated with each flange stopper 12 / blade stopper 32 assembly, a link 35 articulated respectively on each of said stops, and adapted to form with these last a triangulated set of which it constitutes the base, at the end of unwinding when these stops are braced against each other.

De plus, l'axe d'articulation de cette biellette 35 sur la butée de flasque 12 consiste en l'exemple en la vis de l'ensemble vis/écrou 28 s'étendant au travers d'une lumière radiale oblongue 36, ménagée dans ladite butée de flasque de façon à permettre de régler la position radiale dudit axe d'articulation.In addition, the axis of articulation of this link 35 on the stop flange 12 consists in the example of the screw of the screw / nut assembly 28 extending through an oblong radial lumen 36 formed in said flange stop so as to adjust the radial position of said axis hinge.

Enfin, tel que représenté à la figure 3, la biellette 35 est ménagée de façon à être disposée en débord latéral par rapport à la lame supérieure 2a, de façon à ne pas interférer avec l'enroulement.Finally, as shown in FIG. 3, the link 35 is arranged so as to be arranged in lateral projection relative to the blade upper 2a, so as not to interfere with the winding.

Le fonctionnement d'un tel dispositif anti-relevage est explicité en référence aux figures 4a à 6b qui représente un embout d'arbre d'enroulement 3, étant entendu que l'extrémité opposée de cet embout est équipée d'un dispositif anti-relevage identique.The operation of such an anti-lift device is explained with reference to FIGS. 4a to 6b which represents a shaft end winding 3, it being understood that the opposite end of this end piece is equipped with an identical anti-lift device.

En premier lieu, et tel que représenté aux figures 4a et 4b, lorsque le tablier 1 parvient en fin de déroulement et moyennant un affinage préalable de la position radiale et angulaire de la butée 12 de flasque 11, cette dernière vient coopérer avec la butée 32 de lame 2 et s'arc-bouter contre cette dernière dans une position figée par la biellette 35 permettant de tasser le tablier puis de bloquer ce dernier dans sa position déployée.First, and as shown in Figures 4a and 4b, when the apron 1 reaches the end of the unwinding and with refinement prior to the radial and angular position of the stop 12 of the flange 11, this last comes to cooperate with the stop 32 of blade 2 and braces against this last in a fixed position by the link 35 for compacting the deck then block it in its deployed position.

Par la suite, tel que représenté aux figures 5a et 5b, lorsque le tablier 1 est initialement relevé au moyen de la manivelle 7, la butée 32 de lame 2 suit une trajectoire en forme de spirale, tandis que la butée 12 de flasque 11 suit une trajectoire circulaire.Thereafter, as shown in Figures 5a and 5b, when the deck 1 is initially raised by means of the crank 7, the stop 32 of blade 2 follows a spiral-shaped trajectory, while the flange stop 12 It follows a circular trajectory.

Enfin, lorsque l'enroulement est poursuivi, la butée 32 de lame 2 s'enroule autour du tube d'enroulement 3, c'est-à-dire selon une trajectoire circulaire de diamètre inférieur à celle de la butée 12 de flasque 11.Finally, when the winding is continued, the stop 32 of blade 2 is wound around the winding tube 3, that is to say according to a circular trajectory with a diameter smaller than that of the flange stop 12.

Claims (10)

  1. Security anti-raising device for roller shutters, comprising:
    a panel (1) comprising a plurality of slats (2), including an upper slat (2a), which are articulated relative to one another;
    a winding-up shaft (3) which is connected to the upper slat (2a) of the panel (3) by attachment means (6) in order to permit winding up and unwinding of the panel around the said shaft;
    means (7-9) for rotation of the winding-up shaft (3), which can make it possible to unwind the panel (1) into a low, unwound position in which it shuts an aperture, and to wind up the panel (1) into a high, wound-up position in which the latter is wound up along its longest length around the said winding-up shaft, and in which it opens the aperture; and
    means (10) for guiding the panel (1) which can assure guiding and retention of the panel (1);
    this anti-raising device comprising:
    at least one flange (11) which is integral with the winding-up shaft (3) and has a stop (12) which is positioned at the edge of one of the lateral sides of the panel (1);
    associated with each flange (11), a stop (32) for the upper slat (2a), which stop is fitted opposite the flange (11), such as to extend laterally in the extension of the said upper slat (2a), on the same radial plane as the flange stop (11);
    the flange (12) and slat (32) stops being disposed such as to follow circular paths with different diameters, which diameter is greater for the flange stop (12), during winding up and unwinding of the running slats of the panel (1), and being designed such that the flange stop (12) is positioned above the slat stop (32) on completion of unwinding, when the said slat stop (32) follows a spiral path which spaces it from the winding-up shaft (3) until the circular path of the said flange stop is reached; the said anti-raising device being characterised in that:
    each slat stop (32) extends partially in the upper extension of the upper slat (2a) of the panel (1);
    the slat (32) and flange (12) stops have conjugated front surfaces which can permit automatic locking of the said stops on completion of unwinding, in a position in which the latter are braced against one another, the front surface of one of the stops (32) having a cut-out (33), and the front surface of the other stop (12) forming a projection (31) which can be accommodated and locked in the said cut-out;
    each flange (11) consists of two parts consisting of a collar (13,14) to render it integral with the winding-up shaft (3), and a plate (17) on which the flange stop (12) is fitted, the said flange comprising:
    means (15,19,20) for adjustment of the angular position of the plate (17) relative to the collar (13,14) and for locking of the said plate onto the said collar, in predetermined angular positions; and
    means (24,25,27,28) for adjustment of the radial position of the flange stop (12) and for locking of the latter on the plate (17), in predetermined radial positions.
  2. Anti-raising device according to claim 1, characterised in that, associated with each flange (11), it comprises a rocker bar (35) which is articulated around two shafts which are integral respectively with the flange stop (12) and the slat stop (32), the said shafts being arranged such that the said rocker bar pivots between:
    a radially extended position, which is obtained in the low, unwound position of the panel (1), in which this rocker bar (35) forms the base of a triangulated assembly, the two braced stops (12,32) of which form the sides; and
    a position which is retracted radially in the direction of the winding-up shaft (3), and is obtained when the panel (1) is wound up.
  3. Anti-raising device according to claim 2, characterised in that it comprises means for adjustment of the radial position of the articulation shaft of each rocker bar (35), relative to the associated flange stop (12).
  4. Anti-raising device according to any one of claims 1 to 3, comprising two flange stops (12) and two slat stops (32), which are disposed corresponding to both sides of the panel.
  5. Anti-raising device according to any one of claims 1 to 4, characterised in that each slat stop (32) has a front surface with a cut-out (33) in the form of a V, each flange stop (12) having a front surface with a projection (31) which can be accommodated and locked in the said cut-out.
  6. Anti-raising device according to any one of claims 1 to 5, characterised in that the means for adjustment of the radial position of the stop (12) of each flange (11) comprise:
    a radial slide (24), with a width which is conjugated with the flange stop (12) provided in the plate (17), the said slide having a base wall which is provided with a radial opening (25);
    a through-bore (27) which is provided in the flange stop (12), opposite the radial opening (25) in the slide (24); and
    locking elements (28), which can extend through the radial opening (25) and the bore (27).
  7. Anti-raising device according to claim 6, characterised in that the base of the slide (24) and the opposite surface of the flange stop (12) have transverse serrations (26,29) which can prevent any displacement of the said flange stop after locking has taken place.
  8. Anti-raising device according to any one of claims 1 to 7, characterised in that the means for adjustment of the angular position of the plate (17) of each flange (11) comprise:
    a plurality of apertures (15) which are provided in the flange (13) and are distributed regularly along a diameter which is predetermined relative to the axis of the winding-up shaft (3);
    a plurality of oblong holes (19) which are provided in the plate (17), such that they each correspond to an aperture (15) in the flange (13); and
    locking elements (20) which can extend through the apertures (15) and the oblong holes (19).
  9. Anti-raising device according to claim 8, characterised in that the flange (13) and the opposite surface of the plate (17) have radial serrations (21) which can prevent any angular rotation of the said plate after locking has taken place.
  10. Anti-raising device according to any one of the preceding claims, characterised in that each flange stop (12) has radial longitudinal edges with an oblique profile, such as to prevent misalignment of the slats (2) at the outlet of the means (10) for guiding.
EP19990390007 1998-04-15 1999-04-12 Anti roll-up security device for roller shutter Expired - Lifetime EP0950792B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804662A FR2777590B1 (en) 1998-04-15 1998-04-15 ROLLER SHUTTER SAFETY ANTI-LIFT DEVICE
FR9804662 1998-04-15

Publications (2)

Publication Number Publication Date
EP0950792A1 EP0950792A1 (en) 1999-10-20
EP0950792B1 true EP0950792B1 (en) 2003-08-06

Family

ID=9525240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990390007 Expired - Lifetime EP0950792B1 (en) 1998-04-15 1999-04-12 Anti roll-up security device for roller shutter

Country Status (4)

Country Link
EP (1) EP0950792B1 (en)
DE (1) DE69910103T2 (en)
ES (1) ES2204072T3 (en)
FR (1) FR2777590B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2920184B1 (en) * 2007-08-21 2009-12-18 Deprat Jean DEVICE FOR COUPLING A SHUTTER APRON FOR LOCKING THE APRON IN A DEPLOYED POSITION

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH592237A5 (en) * 1975-05-30 1977-10-14 Baumann Rolladen
DE3101650C2 (en) 1981-01-20 1984-11-08 Wacker-Chemie GmbH, 8000 München Process for the production of pure, storage-stable acetoacetamide
DE9101307U1 (en) 1991-02-06 1991-04-25 Eckermann, Thomas, 6384 Schmitten Device for hanging a roller shutter curtain on a shaft mounted in the roller shutter box
FR2696779B1 (en) 1992-10-12 1994-12-23 Peyrichou Fermetures Henri Automatic safety lock for roller shutters.
DE9303720U1 (en) 1993-03-13 1993-05-13 Streif AG, 5540 Weinsheim Device for securing a roller shutter against being pushed up from the outside
FR2753742B1 (en) * 1996-09-20 1998-12-11 QUICK ANCHORING DEVICE FOR A ROLLING SHUTTER, PARTICULARLY, AND A MOBILE APRON CLOSING SYSTEM, SUCH AS A ROLLING STEERING WHEEL THUS EQUIPPED

Also Published As

Publication number Publication date
DE69910103D1 (en) 2003-09-11
FR2777590B1 (en) 2000-06-16
ES2204072T3 (en) 2004-04-16
EP0950792A1 (en) 1999-10-20
DE69910103T2 (en) 2004-04-22
FR2777590A1 (en) 1999-10-22

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