EP0875656A1 - Rollable motorised product equipped with a stop device which is sensitive to a weight variation - Google Patents

Rollable motorised product equipped with a stop device which is sensitive to a weight variation Download PDF

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Publication number
EP0875656A1
EP0875656A1 EP98810278A EP98810278A EP0875656A1 EP 0875656 A1 EP0875656 A1 EP 0875656A1 EP 98810278 A EP98810278 A EP 98810278A EP 98810278 A EP98810278 A EP 98810278A EP 0875656 A1 EP0875656 A1 EP 0875656A1
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EP
European Patent Office
Prior art keywords
winding
arm
rollable
product according
fixed support
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Granted
Application number
EP98810278A
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German (de)
French (fr)
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EP0875656B1 (en
Inventor
Thierry Genin
Thierry Schneider
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Simu SAS
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Simu SAS
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    • 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
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • 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
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6818—Control using sensors
    • E06B2009/6854—Control using sensors sensing torque

Definitions

  • the invention relates to a motorized windable product.
  • a motorized windable product comprising winding means driven by a electric motor and equipped with a stop device automatic operating by detecting a variation of the apparent weight, at at least one support point, of the rollable product, and comprising at least one power interruption device activated by moving the winding means and a means elastic to compensate for the apparent weight of the product can be rolled up in a partially unrolled position.
  • the object of the present invention is to provide a particularly compact and clean construction used in all motorized winding products, in especially motorized roll-up products comprising a winding tube.
  • This construction must also be easily adaptable to ensure automatic shutdown both in the rolled up position and in the unfolded.
  • the rollable product according to the invention is characterized in that the winding means are supported at at least one of their ends by a connected arm, on the one hand, to the winding means and, on the other hand, to a fixed support, so that its orientation varies with the apparent weight and in that this arm simultaneously constitutes an actuator of the power interruption device.
  • the arm can be rigid and articulated by one end on the fixed support and at an intermediate point on the winding means, the elastic means of compensation consisting of a spring opposing the rotation of the arm, this spring being able to be mounted in the winding means, in particular in the tube winding, or in the fixed support.
  • the arm can consist of a fixed flexible bar by embedding in the fixed support and articulated in an intermediate point on the winding means.
  • a rigid arm is embedded, by a significant part of its length, in an elastomer block supporting the winding means and one end of which is fixed to the fixed support, to a certain distance from the winding means, such so that the force exerted on the elastomer by the apparent weight of the rollable product has the effect to generate constraints in the elastomer decreasing from its bond to the support, from so that the variation in the apparent weight is translated by the modification of the orientation of said arm and actuation of a device for interrupting food.
  • the power interruption device can be made up of a mechanical switch under its simplest form or more complex device, such as an encoder, for example a potentiometer, associated to electronics.
  • Figure 1 shows schematically a rolling shutter partially unfolded.
  • Figure 2 is an axial sectional view of one end of the roller tube of the roller shutter of Figure 1 according to a first embodiment.
  • Figure 3 is a view similar to Figure 2 representing a second embodiment.
  • Figure 4 is a similar view showing a third embodiment.
  • Figure 5 is a similar view showing a fourth embodiment.
  • Figure 6 is a similar view showing a fifth mode of execution.
  • FIG. 7 represents an alternative embodiment of the first embodiment equipped with a device interruption of power of a different type.
  • FIG. 1 we recognize a box 1 in which wraps a rolling shutter 2 around a tube winding driven by a tubular motor housed at the inside of the winding tube according to a well known construction and supplied with low voltage BT through a control box 3 provided with push buttons for controlling the winding and rolling shutter sequence 2.
  • the box is mounted fixed in a doorway not shown and its ends are closed by two cheeks 4 and 5 supporting the motor and bearings of the winding tube.
  • the weight of the motor assembly, winding tube and flap is distributed on the two cheeks 4 and 5 of the box. he is therefore possible to detect a change in weight apparent from this set either to one or the other of its ends, either at both ends at the same time.
  • FIG. 2 represents a first embodiment of the support of the left end of the rollable product.
  • a winding tube 6 inside which is mounted a tubular casing 20 constituted by the extension of the casing of a tubular motor not represented.
  • This housing 20 is fixed on and around a support 23 in the form of a cylindrical sleeve, one of which bearing form part for an annular end piece 21 integral with the winding tube 6.
  • the sleeve 23 is supported by the cheek 4 of the box through a rigid arm 24 articulated, on the one hand, at a point intermediate, around a horizontal axis 25, on the sleeve 23 and, on the other hand, by its end outside, around a second horizontal axis 31 on a console 26 secured to the cheek 4.
  • the part of the weight of the rollable product acting on the axis 25, which we will simply call product weight subsequently retractable is compensated by a spring 28 working in compression between arm 24 and a crosspiece or console 22 of the sleeve 23.
  • the weight of the rollable product is compensated in such a way that the arm 24 is in the horizontal position shown in the drawing.
  • the sleeve 23 are in in addition to two switches 29 and 30, the first being located below arm 24 and the second in above the arm 24 opposite the first.
  • the operation of the automatic shutdown device is the following :
  • the stop device according to the invention operates from particularly satisfactorily in the event that the rollable product is fitted with locking means pushing down on the apron of the roller shutter when it is fully extended so as to prevent unauthorized opening of the roller shutter by lifting it by its terminal blade.
  • locking means are described, for example, in patents FR 2,398,870 and FR 2 584 130.
  • the reaction of the shutter support can, in this case, practically cancel the weight visible of the rollable product, which provides a very high operational safety of the stop in unrolled position.
  • a necessary condition and, well understood, that the rollable product has a buckling resistance in the unrolled position. It's the roller shutters and blinds with guided slats in rails or slides.
  • the embodiment shown in Figure 3 does not differ of the first mode of execution than by the link mode from the rigid arm 24 to the fixed support 4 and by the position of the switch 30.
  • the outer end of the arm 24 is simply fitted with play in the fixed support 4, this clearance being sufficient to allow tilting of arm 24 necessary for the actuation of one or the other of switches 29 and 30.
  • the two switches 29 and 30 are located below the arm 24, on either side of axis 25, the arm being horizontal when it supports the weight of the deck plus friction, when climbing.
  • the switch 30 could however be placed above of the arm 24, as shown in 30 '.
  • the rollable product is supported by an arm flexible 32 whose outer end is fixed by recess in the support 4.
  • This arm 32 is articulated at an intermediate point around an axis 25 on the support 23.
  • switch 29 When the apparent weight increases, arm 32 flexes down and actuates switch 29.
  • arm 32 discharged, straightens towards the high.
  • the winding tube rises and the switch 30 comes to meet arm 32.
  • switch 30 could be placed above arm 32, opposite the switch 29.
  • the switches 29 and 30 are mounted in a fixed support 54 in the shape of a box.
  • the sleeve 23 is supported by a T-shaped arm 51 whose leg is articulated by its lower end on the sleeve 23 around an axis 25 and by its other end, constituting the intermediate point of the arm, on the fixed support 54 around an axis 53.
  • the rigid arm 51 is therefore articulated, by one end, on the means winding, around a first axis and at a point intermediate on the fixed support, around a second axis.
  • the weight compensation acting on axis 25 is provided by a hunting horn spring 52 mounted around axis 53 and leaning on one side on the fixed support 54 and on the other side on a nipple 50 of the bar transverse of the arm in T 51.
  • the functioning of this execution mode is identical to that of mode shown in Figure 2.
  • the spring 28 could be replaced by a spring working in traction or any other elastic means working in compression or traction.
  • the embodiment shown in Figure 6 is distinguishes from previous execution modes by the absence of a materialized articulation axis.
  • a cylinder 60 in elastomer over about half of its length this elastomer cylinder being fixed by its base external to a fixed support 61.
  • a bar 62 in the cylinder in elastomeric material 60 is embedded a bar 62 on about half of its length.
  • the weight applied by the product that can be rolled up on the elastomer block 60 has the effect of creating stresses in the elastomer decreasing from the shear zone, at its connection to the support 61, towards its end interior.
  • the apparent weight changes the decrease of these constraints has the effect of change the orientation of arm 62, as if it pivoted around a virtual axis. This pivoting operates switches 29 and 30 as in the first mode of execution.
  • switches 29 and 30 can be replaced by another type of power interruption device.
  • An example is illustrated in Figure 7.
  • FIG. 7 resumes the mechanical elements of the first embodiment shown in Figure 2.
  • Switches 29 and 30 are replaced by a slider potentiometer 70 associated with electronics 71 comprising an interface I / O, one ULT (logical processing unit), two ROM and RAM memories and an H clock.
  • the arm 24 drives the cursor 72 of the potentiometer.
  • a relocation determined from cursor 72 up or down a the effect of causing the interruption of the power supply of the motor to the unwinding, respectively to the winding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Looms (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Electric Ovens (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Blinds (AREA)

Abstract

The motorised roller blind or shutter is driven by an electric motor, and is fitted with an automatic detector to switch off the supply to the motor when the blind or shutter reaches the end of its travel. The detector senses the change in the weight of the blind when it makes contact with an object. The roller is supported at its two ends by an arm connected to a fixed support. A spring compensates the weight of the roller mechanism. The orientation of the arm varies with the weight of the roller mechanism, with the raising of the arm operating the contacts that initiate switching of the supply.

Description

L'invention concerne un produit enroulable motorisé comprenant des moyens d'enroulement entraínés par un moteur électrique et équipé d'un dispositif d'arrêt automatique opérant par la détection d'une variation du poids apparent, en au moins un point de soutien, du produit enroulable, et comprenant au moins un dispositif d'interruption de l'alimentation actionné par le déplacement des moyens d'enroulement et un moyen élastique de compensation du poids apparent du produit enroulable dans une position partiellement déroulée.The invention relates to a motorized windable product. comprising winding means driven by a electric motor and equipped with a stop device automatic operating by detecting a variation of the apparent weight, at at least one support point, of the rollable product, and comprising at least one power interruption device activated by moving the winding means and a means elastic to compensate for the apparent weight of the product can be rolled up in a partially unrolled position.

L'utilisation de la variation du poids apparent d'un store muni d'une barre de charge pour son arrêt en position déroulée est décrite dans la demande de brevet internationale WO 96/22446. La brusque diminution du poids apparent du store lorsque sa barre de charge vient reposer au bas de la fenêtre en position complètement déroulée a pour effet d'autoriser un ressort de compensation à relever obliquement l'arbre d'enroulement, ce relèvement ayant pour effet d'ouvrir un interrupteur et de couper ainsi l'alimentation du moteur.The use of variation in the apparent weight of a awning with a load bar for stopping it unrolled position is described in the patent application international WO 96/22446. The abrupt decrease in apparent weight of the awning when its load bar comes to rest at the bottom of the window in position completely unrolled has the effect of authorizing a compensation spring to tilt the shaft obliquely winding, this raising having the effect of opening switch and cut off the power to the engine.

De la demande de brevet DE 39 25 625, on connaít d'autre part un dispositif d'arrêt automatique du moteur d'entraínement d'un rideau muni d'une barre de charge, utilisant la variation du poids apparent du rideau pour arrêter le déroulement de celui-ci lorsque la barre de charge rencontre un obstacle lors de son déroulement.
La compensation du poids du rideau est assurée par des poids suspendus dont la descente actionne des interrupteurs. From patent application DE 39 25 625, there is also known an automatic shutdown device for the motor driving a curtain fitted with a load bar, using the variation in the apparent weight of the curtain to stop the unfolding thereof when the load bar encounters an obstacle during its unfolding.
The weight of the curtain is compensated by suspended weights, the descent of which activates switches.

L'utilisation de la variation du poids apparent du produit enroulable pour assurer son arrêt en position déroulée permet d'obtenir un dispositif d'arrêt très sûr, sensible et ne nécessitant aucun réglage fonction de la course du produit enroulable.The use of the variation in the apparent weight of the rollable product to ensure it stops in position unrolled provides a very stop device safe, sensitive and requires no function adjustment of the travel of the rollable product.

La présente invention a pour but de réaliser une construction particulièrement compacte et propre à être utilisée dans tous produits enroulables motorisés, en particulier les produits enroulables motorisés comportant un tube d'enroulement.The object of the present invention is to provide a particularly compact and clean construction used in all motorized winding products, in especially motorized roll-up products comprising a winding tube.

Cette construction doit en outre être aisément adaptable de manière à assurer un arrêt automatique aussi bien en position enroulée, qu'en position déroulée.This construction must also be easily adaptable to ensure automatic shutdown both in the rolled up position and in the unfolded.

Le produit enroulable selon l'invention est caractérisé en ce que les moyens d'enroulement sont supportés à l'une au moins de leurs extrémités par un bras relié, d'une part, aux moyens d'enroulement et, d'autre part, à un support fixe, de telle manière que son orientation varie avec le poids apparent et en ce que ce bras constitue simultanément un organe d'actionnement du dispositif d'interruption de l'alimentation.The rollable product according to the invention is characterized in that the winding means are supported at at least one of their ends by a connected arm, on the one hand, to the winding means and, on the other hand, to a fixed support, so that its orientation varies with the apparent weight and in that this arm simultaneously constitutes an actuator of the power interruption device.

Le bras peut être rigide et articulé par une extrémité sur le support fixe et en un point intermédiaire sur les moyens d'enroulement, le moyen élastique de compensation étant constitué d'un ressort s'opposant à la rotation du bras, ce ressort pouvant être monté dans les moyens d'enroulement, en particulier dans le tube d'enroulement, ou dans le support fixe.The arm can be rigid and articulated by one end on the fixed support and at an intermediate point on the winding means, the elastic means of compensation consisting of a spring opposing the rotation of the arm, this spring being able to be mounted in the winding means, in particular in the tube winding, or in the fixed support.

Le bras peut être constitué d'une barre flexible fixée par encastrement dans le support fixe et articulée en un point intermédiaire sur les moyens d'enroulement.The arm can consist of a fixed flexible bar by embedding in the fixed support and articulated in an intermediate point on the winding means.

Selon un autre mode d'exécution, un bras rigide est encastré, par une partie important de sa longueur, dans un bloc élastomère supportant les moyens d'enroulement et dont une extrémité est fixée au support fixe, à une certaine distance des moyens d'enroulement, de telle manière que l'effort exercé sur l'élastomère par le poids apparent du produit enroulable a pour effet d'engendrer dans l'élastomère des contraintes décroissantes à partir de sa liaison au support, de telle sorte que la variation du poids apparent se traduit par la modification de l'orientation dudit bras et l'actionnement d'un dispositif d'interruption de l'alimentation.According to another embodiment, a rigid arm is embedded, by a significant part of its length, in an elastomer block supporting the winding means and one end of which is fixed to the fixed support, to a certain distance from the winding means, such so that the force exerted on the elastomer by the apparent weight of the rollable product has the effect to generate constraints in the elastomer decreasing from its bond to the support, from so that the variation in the apparent weight is translated by the modification of the orientation of said arm and actuation of a device for interrupting food.

Le dispositif d'interruption de l'alimentation peut être constitué d'un interrupteur mécanique sous sa forme la plus simple ou d'un dispositif plus complexe, tel qu'un codeur, par exemple un potentiomètre, associé à une électronique.The power interruption device can be made up of a mechanical switch under its simplest form or more complex device, such as an encoder, for example a potentiometer, associated to electronics.

Le dessin annexé représente, à titre d'exemple, quelques modes d'exécution du produit enroulable motorisé selon l'invention.The accompanying drawing shows, by way of example, some execution modes of the rollable product motorized according to the invention.

La figure 1 représente schématiquement un volet roulant partiellement déroulé. Figure 1 shows schematically a rolling shutter partially unfolded.

La figure 2 est une vue en coupe axiale d'une extrémité du tube d'enroulement du volet roulant de la figure 1 selon un premier mode d'exécution.Figure 2 is an axial sectional view of one end of the roller tube of the roller shutter of Figure 1 according to a first embodiment.

La figure 3 est une vue analogue à la figure 2 représentant un deuxième mode d'exécution.Figure 3 is a view similar to Figure 2 representing a second embodiment.

La figure 4 est une vue analogue représentant un troisième mode d'exécution.Figure 4 is a similar view showing a third embodiment.

La figure 5 est une vue analogue représentant un quatrième mode d'exécution.Figure 5 is a similar view showing a fourth embodiment.

La figure 6 est une vue analogue représentant un cinquième mode d'exécution.Figure 6 is a similar view showing a fifth mode of execution.

La figure 7 représente une variante d'exécution du premier mode d'exécution équipé d'un dispositif d'interruption de l'alimentation d'un type différent.FIG. 7 represents an alternative embodiment of the first embodiment equipped with a device interruption of power of a different type.

A la figure 1, on reconnaít un caisson 1 dans lequel vient s'enrouler un volet roulant 2 autour d'un tube d'enroulement entraíné par un moteur tubulaire logé à l'intérieur du tube d'enroulement selon une construction bien connue et alimenté en basse tension BT à travers un boítier de commande 3 muni de boutons-poussoirs pour la commande de l'enroulement et du déroulement du volet roulant 2. Le caisson est monté fixe dans une embrasure non représentée et ses extrémités sont fermées par deux joues 4 et 5 soutenant le moteur et les paliers du tube d'enroulement. Le poids de l'ensemble moteur, tube d'enroulement et volet se répartit sur les deux joues 4 et 5 du caisson. Il est donc possible de détecter une variation de poids apparent de cet ensemble soit à l'une ou l'autre de ses extrémités, soit aux deux extrémités à la fois.In Figure 1, we recognize a box 1 in which wraps a rolling shutter 2 around a tube winding driven by a tubular motor housed at the inside of the winding tube according to a well known construction and supplied with low voltage BT through a control box 3 provided with push buttons for controlling the winding and rolling shutter sequence 2. The box is mounted fixed in a doorway not shown and its ends are closed by two cheeks 4 and 5 supporting the motor and bearings of the winding tube. The weight of the motor assembly, winding tube and flap is distributed on the two cheeks 4 and 5 of the box. he is therefore possible to detect a change in weight apparent from this set either to one or the other of its ends, either at both ends at the same time.

La figure 2 représente un premier mode d'exécution du soutien de l'extrémité gauche du produit enroulable. On distingue un tube d'enroulement 6 à l'intérieur duquel est monté un carter tubulaire 20 constitué par le prolongement du carter d'un moteur tubulaire non représenté. Ce carter 20 est fixé sur et autour d'un support 23 en forme de manchon cylindrique dont une partie forme palier pour un embout annulaire 21 solidaire du tube d'enroulement 6. Le manchon 23 est soutenu par la joue 4 du caisson par l'intermédiaire d'un bras rigide 24 articulé, d'une part, en un point intermédiaire, autour d'un axe horizontal 25, sur le manchon 23 et, d'autre part, par son extrémité extérieure, autour d'un second axe horizontal 31 sur une console 26 solidaire de la joue 4. La partie du poids du produit enroulable s'exerçant sur l'axe 25, que nous appellerons simplement poids du produit enroulable par la suite est compensée par un ressort 28 travaillant en compression entre le bras 24 et une traverse ou console 22 du manchon 23. En position partiellement déroulée du volet roulant 2, le poids du produit enroulable est compensé de telle manière que le bras 24 se trouve dans la position horizontale représentée au dessin. Dans le manchon 23, sont en outre montés deux interrupteurs 29 et 30, le premier étant situé en dessous du bras 24 et le second en dessus du bras 24 vis-à-vis du premier. Le fonctionnement du dispositif d'arrêt automatique est le suivant :FIG. 2 represents a first embodiment of the support of the left end of the rollable product. We distinguishes a winding tube 6 inside which is mounted a tubular casing 20 constituted by the extension of the casing of a tubular motor not represented. This housing 20 is fixed on and around a support 23 in the form of a cylindrical sleeve, one of which bearing form part for an annular end piece 21 integral with the winding tube 6. The sleeve 23 is supported by the cheek 4 of the box through a rigid arm 24 articulated, on the one hand, at a point intermediate, around a horizontal axis 25, on the sleeve 23 and, on the other hand, by its end outside, around a second horizontal axis 31 on a console 26 secured to the cheek 4. The part of the weight of the rollable product acting on the axis 25, which we will simply call product weight subsequently retractable is compensated by a spring 28 working in compression between arm 24 and a crosspiece or console 22 of the sleeve 23. In position partially rolled out shutter 2, the weight of the rollable product is compensated in such a way that the arm 24 is in the horizontal position shown in the drawing. In the sleeve 23, are in in addition to two switches 29 and 30, the first being located below arm 24 and the second in above the arm 24 opposite the first. The operation of the automatic shutdown device is the following :

Lors du déroulement du volet roulant 2, lorsque celui-ci est complètement déroulé, sa barre de charge vient reposer au bas de l'embrasure ou de la baie, de telle sorte que le poids apparent du produit enroulable diminue brusquement. Sous l'effet de la surcompensation, par le ressort 28, du poids agissant sur l'axe 25, le bras 24 pivote vers le haut autour de son axe 31 en entraínant le tube d'enroulement. Le poussoir de l'interrupteur 30 étant sensiblement plus éloigné de l'axe 25 que l'axe 31, le bras 24 actionne l'interrupteur 30, ce qui a pour effet de couper l'alimentation du moteur.During the rolling shutter 2, when it is completely unrolled, its load bar comes rest at the bottom of the doorway or bay, such so that the apparent weight of the rollable product abruptly decreases. Under the effect of overcompensation, by the spring 28, of the acting weight on the axis 25, the arm 24 pivots upwards around its axis 31 by driving the winding tube. The switch 30 push button being substantially more distant from the axis 25 than the axis 31, the arm 24 actuates switch 30, which has the effect of cutting motor power.

Dans le cas d'un volet roulant constitué de lamelles, la compensation du poids apparent du produit enroulable se fera de telle sorte que l'interrupteur 30 soit actionné au moment où toutes les lamelles sont empilées.In the case of a rolling shutter made up of slats, compensation for the apparent weight of the rollable product will be done so that switch 30 is activated when all the slats are stacked.

Le dispositif d'arrêt selon l'invention fonctionne de façon particulièrement satisfaisante dans le cas où le produit enroulable est équipé de moyens de verrouillage exerçant une poussée vers le bas sur le tablier du volet roulant lorsque celui-ci est complètement déroulé de manière à empêcher une ouverture non autorisée du volet roulant par le soulèvement de celui-ci par sa lame terminale. De tels moyens de verrouillage sont décrits, par exemple, dans les brevets FR 2 398 870 et FR 2 584 130. La réaction de l'appui du volet roulant peut, dans ce cas, annuler pratiquement le poids apparent du produit enroulable, ce qui procure une très grande sécurité de fonctionnement de l'arrêt en position déroulée. Une condition nécessaire et, bien entendu, que le produit enroulable présente une résistance au flambage en position déroulée. C'est le cas des volets roulants et stores à lamelles guidés dans des rails ou glissières.The stop device according to the invention operates from particularly satisfactorily in the event that the rollable product is fitted with locking means pushing down on the apron of the roller shutter when it is fully extended so as to prevent unauthorized opening of the roller shutter by lifting it by its terminal blade. Such locking means are described, for example, in patents FR 2,398,870 and FR 2 584 130. The reaction of the shutter support can, in this case, practically cancel the weight visible of the rollable product, which provides a very high operational safety of the stop in unrolled position. A necessary condition and, well understood, that the rollable product has a buckling resistance in the unrolled position. It's the roller shutters and blinds with guided slats in rails or slides.

Lors de l'enroulement, lorsque les extrémités 17 et 18 de la barre de charge, respectivement de la lamelle inférieure d'un store à lamelles, viennent buter contre le caisson 1, le poids apparent du produit enroulable augmente brusquement en raison de la traction exercée par le volet roulant sur le tube d'enroulement. Le bras 24 est tiré vers le bas en comprimant le ressort 28 et vient actionner l'interrupteur 29 qui coupe l'alimentation du moteur dans le sens de l'enroulement.When winding, when the ends 17 and 18 of the load bar, respectively of the slat lower of a blind with slats, come up against box 1, the apparent weight of the rollable product increases sharply due to traction by the roller shutter on the winding tube. The arm 24 is pulled down by compressing the spring 28 and actuates the switch 29 which cuts the motor supply in the winding direction.

Le mode d'exécution représenté à la figure 3 ne diffère du premier mode d'exécution que par le mode de liaison du bras rigide 24 au support fixe 4 et par la position de l'interrupteur 30. L'extrémité extérieure du bras 24 est simplement emboítée avec jeu dans le support fixe 4, ce jeu étant suffisant pour permettre le basculement du bras 24 nécessaire à l'actionnement de l'un ou l'autre des interrupteurs 29 et 30. Dans ce mode d'exécution, les deux interrupteurs 29 et 30 sont situés en dessous du bras 24, de part et d'autre de l'axe 25, le bras étant horizontal lorsqu'il supporte le poids du tablier plus les frottements, à la montée.The embodiment shown in Figure 3 does not differ of the first mode of execution than by the link mode from the rigid arm 24 to the fixed support 4 and by the position of the switch 30. The outer end of the arm 24 is simply fitted with play in the fixed support 4, this clearance being sufficient to allow tilting of arm 24 necessary for the actuation of one or the other of switches 29 and 30. In this mode of execution, the two switches 29 and 30 are located below the arm 24, on either side of axis 25, the arm being horizontal when it supports the weight of the deck plus friction, when climbing.

L'interrupteur 30 pourrait toutefois être placé au-dessus du bras 24, comme représenté en 30'. The switch 30 could however be placed above of the arm 24, as shown in 30 '.

Dans le troisième mode d'exécution, représenté à la figure 4, le produit enroulable est soutenu par un bras flexible 32 dont l'extrémité extérieure est fixée par encastrement dans le support 4. Ce bras 32 est articulé en un point intermédiaire autour d'un axe 25 sur le support 23. Lors d'une augmentation du poids apparent, le bras 32 fléchit vers le bas et vient actionner l'interrupteur 29. Lors d'une diminution du poids apparent, le bras 32, déchargé, se redresse vers le haut. Le tube d'enroulement s'élève et l'interrupteur 30 vient rencontrer le bras 32. Comme dans le mode d'exécution précédent, l'interrupteur 30 pourrait être placé au-dessus du bras 32, vis-à-vis de l'interrupteur 29.In the third embodiment, shown in figure 4, the rollable product is supported by an arm flexible 32 whose outer end is fixed by recess in the support 4. This arm 32 is articulated at an intermediate point around an axis 25 on the support 23. When the apparent weight increases, arm 32 flexes down and actuates switch 29. When the weight decreases apparent, arm 32, discharged, straightens towards the high. The winding tube rises and the switch 30 comes to meet arm 32. As in the mode of previous execution, switch 30 could be placed above arm 32, opposite the switch 29.

Dans le mode d'exécution représenté à la figure 5, les interrupteurs 29 et 30 sont montés dans un support fixe 54 en forme de caisson. Le manchon 23 est soutenu par un bras 51 en forme de T dont la jambe est articulée par son extrémité inférieure sur le manchon 23 autour d'un axe 25 et par son autre extrémité, constituant le point intermédiaire du bras, sur le support fixe 54 autour d'un axe 53. Le bras rigide 51 est donc articulé, par une extrémité, sur les moyens d'enroulement, autour d'un premier axe et en un point intermédiaire sur le support fixe, autour d'un second axe. La compensation du poids agissant sur l'axe 25 est assurée par un ressort en cor de chasse 52 monté autour de l'axe 53 et s'appuyant d'un côté sur le support fixe 54 et de l'autre côté sur un téton 50 de la barre transversale du bras en T 51. Le fonctionnement de ce mode d'exécution est identique à celui du mode d'exécution représenté à la figure 2.In the embodiment shown in Figure 5, the switches 29 and 30 are mounted in a fixed support 54 in the shape of a box. The sleeve 23 is supported by a T-shaped arm 51 whose leg is articulated by its lower end on the sleeve 23 around an axis 25 and by its other end, constituting the intermediate point of the arm, on the fixed support 54 around an axis 53. The rigid arm 51 is therefore articulated, by one end, on the means winding, around a first axis and at a point intermediate on the fixed support, around a second axis. The weight compensation acting on axis 25 is provided by a hunting horn spring 52 mounted around axis 53 and leaning on one side on the fixed support 54 and on the other side on a nipple 50 of the bar transverse of the arm in T 51. The functioning of this execution mode is identical to that of mode shown in Figure 2.

Dans les modes d'exécution représentés aux figures 2 et 3, le ressort 28 pourrait être remplacé par un ressort travaillant en traction ou tout autre moyen élastique travaillant en compression ou en traction.In the embodiments shown in Figures 2 and 3, the spring 28 could be replaced by a spring working in traction or any other elastic means working in compression or traction.

Le mode d'exécution représenté à la figure 6 se distingue des modes d'exécution précédents par l'absence d'axe d'articulation matérialisé. On retrouve le manchon 23 du premier mode d'exécution et la même disposition des interrupteurs 29 et 30. Dans l'extrémité de ce manchon 23 est emboíté un cylindre 60 en élastomère sur environ la moitié de sa longueur, ce cylindre en élastomère étant fixé par sa base extérieure à un support fixe 61. Dans le cylindre en matériau élastomère 60 est encastrée une barre 62 sur environ la moitié de sa longueur. Le poids appliqué par le produit enroulable sur le bloc élastomère 60 a pour effet d'engendrer dans l'élastomère des contraintes décroissantes de la zone de cisaillement, à sa liaison au support 61, en direction de son extrémité intérieure. Lors de la variation du poids apparent, la décroissance de ces contraintes a pour effet de modifier l'orientation du bras 62, comme si celui-ci pivotait autour d'un axe virtuel. Ce pivotement actionne les interrupteurs 29 et 30 comme dans le premier mode d'exécution.The embodiment shown in Figure 6 is distinguishes from previous execution modes by the absence of a materialized articulation axis. We find the sleeve 23 of the first embodiment and the same arrangement of switches 29 and 30. In the end of this sleeve 23 is fitted a cylinder 60 in elastomer over about half of its length, this elastomer cylinder being fixed by its base external to a fixed support 61. In the cylinder in elastomeric material 60 is embedded a bar 62 on about half of its length. The weight applied by the product that can be rolled up on the elastomer block 60 has the effect of creating stresses in the elastomer decreasing from the shear zone, at its connection to the support 61, towards its end interior. When the apparent weight changes, the decrease of these constraints has the effect of change the orientation of arm 62, as if it pivoted around a virtual axis. This pivoting operates switches 29 and 30 as in the first mode of execution.

Comme ceci a été mentionné plus haut, les interrupteurs 29 et 30 peuvent être remplacés par un autre type de dispositif d'interruption de l'alimentation. Un exemple est illustré à la figure 7.As mentioned above, the switches 29 and 30 can be replaced by another type of power interruption device. An example is illustrated in Figure 7.

Le mode d'exécution représenté à la figure 7 reprend les éléments mécaniques du premier mode d'exécution représenté à la figure 2. Les interrupteurs 29 et 30 sont remplacés par un potentiomètre à curseur 70 associé à une électronique 71 comprenant une interface I/O, une ULT (unité logique de traitement), deux mémoires ROM et RAM et une horloge H. Le bras 24 entraíne le curseur 72 du potentiomètre. Un déplacement déterminé du curseur 72 vers le haut ou vers le bas a pour effet de provoquer l'interruption de l'alimentation du moteur au déroulement, respectivement à l'enroulement.The embodiment shown in Figure 7 resumes the mechanical elements of the first embodiment shown in Figure 2. Switches 29 and 30 are replaced by a slider potentiometer 70 associated with electronics 71 comprising an interface I / O, one ULT (logical processing unit), two ROM and RAM memories and an H clock. The arm 24 drives the cursor 72 of the potentiometer. A relocation determined from cursor 72 up or down a the effect of causing the interruption of the power supply of the motor to the unwinding, respectively to the winding.

Claims (11)

Produit enroulable motorisé (2) comprenant des moyens d'enroulement entraínés par un moteur électrique et équipés d'un dispositif d'arrêt automatique opérant par la détection d'une variation du poids apparent, en au moins un point de soutien, du produit enroulable, et comprenant au moins un dispositif d'interruption de l'alimentation (29, 30) actionné par le déplacement des moyens d'enroulement et un moyen élastique (28 ; 32 ; 52 ; 60) de compensation du poids apparent du produit enroulable dans une position partiellement déroulée, caractérisé en ce que les moyens d'enroulement sont supportés, à l'une au moins de leurs extrémités, par un bras (24 ; 32 ; 51 ; 62) relié de telle manière au moyen d'enroulement et à un support fixe (4, 54 ; 61), que son orientation varie avec le poids apparent et en ce que ce bras constitue simultanément un organe d'actionnement du dispositif d'interruption de l'alimentation.Motorized roll-up product (2) comprising winding means driven by a motor electric and equipped with a stop device automatic operating by detecting a variation apparent weight, in at least one support point, of the rollable product, and comprising at least one power interruption device (29, 30) actuated by the movement of the winding means and an elastic means (28; 32; 52; 60) for compensation of the apparent weight of the rollable product in a partially unrolled position, characterized in that the winding means are supported, at at least one of their ends, by an arm (24; 32; 51; 62) connected in such a way by means winding and to a fixed support (4, 54; 61), that its orientation varies with the apparent weight and in this that this arm simultaneously constitutes an organ actuation of the device for interrupting food. Produit enroulable selon la revendication 1, caractérisé en ce que le bras (24) est rigide et qu'il est articulé par une extrémité sur ledit support fixe autour d'un premier axe horizontal (31) et un point intermédiaire sur les moyens d'enroulement autour d'un second axe horizontal (25).Rollable product according to claim 1, characterized in that the arm (24) is rigid and that it is articulated by one end on said fixed support around a first horizontal axis (31) and an intermediate point on the means winding around a second horizontal axis (25). Produit enroulable selon la revendication 1, caractérisé en ce que le bras (32) est flexible et qu'il est fixé par encastrement dans le support fixe et articulé autour d'un axe horizontal (25) sur les moyens d'enroulement.Rollable product according to claim 1, characterized in that the arm (32) is flexible and that it is fixed by embedding in the fixed support and articulated around a horizontal axis (25) on the winding means. Produit enroulable selon la revendication 2, caractérisé en ce que le moyen élastique (28) est disposé dans les moyens d'enroulement, entre le bras (24) et un support (22) solidaire des moyens d'enroulement.Rollable product according to claim 2, characterized in that the elastic means (28) is arranged in the winding means, between the arm (24) and a support (22) integral with the means winding. Produit enroulable selon la revendication 2, caractérisé en ce que le bras rigide (51) est articulé par une extrémité sur les moyens d'enroulement autour d'un premier axe (25) et en un point intermédiaire sur le support fixe autour d'un second axe (53), que le moyen élastique de compensation est constitué d'un ressort de torsion (52) monté autour de l'articulation du bras (51) sur le support fixe et en ce que le dispositif d'interruption de l'alimentation (29, 30) est monté dans le support fixe (54).Rollable product according to claim 2, characterized in that the rigid arm (51) is articulated by one end on the means winding around a first axis (25) and in a intermediate point on the fixed support around a second axis (53), that the elastic means of compensation consists of a torsion spring (52) mounted around the articulation of the arm (51) on the fixed support and in that the device power interruption (29, 30) is mounted in the fixed support (54). Produit enroulable selon la revendication 5, caractérisé en ce que le bras (51) est en forme de T.Rollable product according to claim 5, characterized in that the arm (51) is T-shaped. Produit enroulable selon la revendication 1, caractérisé en ce que le bras (62) est encastré, par une partie importante de sa longueur, dans un bloc élastomère (60) supportant les moyens d'enroulement et dont une extrémité est fixée au support fixe (61), à une certaine distance des moyens d'enroulement, de telle manière que l'effort exercé sur le bloc élastomère par ledit poids apparent a pour effet d'engendrer dans l'élastomère des contraintes décroissantes à partir de sa liaison au support, de telle sorte que la variation du poids apparent se traduit par une modification de l'orientation dudit bras (62).Rollable product according to claim 1, characterized in that the arm (62) is embedded, by a significant part of its length, in a block elastomer (60) supporting the winding means and one end of which is fixed to the fixed support (61), at a certain distance from the winding means, such that the force exerted on the block elastomer by said apparent weight has the effect to generate constraints in the elastomer decreasing from its bond to the support, from so that the variation in the apparent weight is translated by a modification of the orientation of said arm (62). Produit enroulable selon l'une des revendications 1, 2, 3, 4, caractérisé en ce que le dispositif d'interruption de l'alimentation (29, 30) est situé à l'intérieur des moyens d'enroulement.Roll-up product according to one of claims 1, 2, 3, 4, characterized in that the device interruption (29, 30) is located at inside the winding means. Produit enroulable selon la revendication 8, dont les moyens d'enroulement comprennent un tube d'enroulement (6) contenant le moteur, caractérisé en ce que le dispositif d'interruption de l'alimentation (29, 30) est situé à l'intérieur du tube d'enroulement.Rollable product according to claim 8, of which the winding means comprise a tube winding (6) containing the motor, characterized in what the power shutdown device (29, 30) is located inside the tube winding. Produit enroulable selon l'une des revendications 1 à 9, comprenant une barre terminale venant buter, lors de l'enroulement, contre des moyens de butée, caractérisé en ce qu'il comprend deux dispositifs d'interruption de l'alimentation, l'un (29) assurant l'arrêt à l'enroulement, lors de l'augmentation du poids apparent due à l'arrivée du produit enroulable en butée, et l'autre (30) assurant l'arrêt au déroulement.Roll-up product according to one of claims 1 at 9, comprising a terminal bar abutting, during winding, against stop means, characterized in that it comprises two devices power interruption, one (29) ensuring winding stop, when the apparent weight due to the arrival of the rollable product in abutment, and the other (30) ensuring stopping at unfolding. Produit enroulable selon la revendication 10, présentant une résistance au flambage en position déroulée, caractérisé en ce qu'il est équipé de moyens de verrouillage exerçant une poussée vers le bas sur le produit enroulable en position complètement déroulée.Rollable product according to claim 10, having buckling resistance in position unrolled, characterized in that it is equipped with locking means pushing towards the low on the rollable product in position completely unwound.
EP98810278A 1997-04-29 1998-03-31 Rollable motorised product equipped with a stop device which is sensitive to a weight variation Expired - Lifetime EP0875656B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9705280A FR2762643B1 (en) 1997-04-29 1997-04-29 MOTORIZED ROLL-UP PRODUCT HAVING A STOP DEVICE SENSITIVE TO A VARIATION IN WEIGHT
FR9705280 1997-04-29

Publications (2)

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EP0875656A1 true EP0875656A1 (en) 1998-11-04
EP0875656B1 EP0875656B1 (en) 2003-06-04

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EP (1) EP0875656B1 (en)
AT (1) ATE242414T1 (en)
DE (1) DE69815205T2 (en)
ES (1) ES2124683T3 (en)
FR (1) FR2762643B1 (en)

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Publication number Priority date Publication date Assignee Title
DE202009006587U1 (en) 2009-03-04 2010-07-22 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co. Kg Door drive with two motors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398870A1 (en) 1977-07-25 1979-02-23 Alberts Gmbh & Co Kg G Roller blind locking mechanism - has chain laminar, curved and interlocking links from drum to blind and locking in counter curve
FR2584130A1 (en) 1985-06-28 1987-01-02 Schlagmuller Paul Protective roller blind for openings in walls
DE3925625A1 (en) 1989-07-31 1991-02-14 Schleicher Relais Clocked constant-power source esp. for timing relay - has output MOSFET switch protected by bipolar transistor for provision of load current via storage inductor
EP0703344A1 (en) * 1994-09-22 1996-03-27 Gottlieb Klenk Selfactuating stopping device for a roller blind, especially for a roller shutter
DE4445978A1 (en) * 1994-12-22 1996-06-27 Wiral Rolladenfertigungs Und V Roller door or shutter safety device operating system
WO1996022446A1 (en) 1995-01-18 1996-07-25 V. Kann Rasmussen Industri A/S An end stop device for an electrically operated window screening arrangement
DE19610877A1 (en) * 1995-06-30 1997-01-02 Becker Antriebe Gmbh Control for motorised drive for roller shutter or door

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398870A1 (en) 1977-07-25 1979-02-23 Alberts Gmbh & Co Kg G Roller blind locking mechanism - has chain laminar, curved and interlocking links from drum to blind and locking in counter curve
FR2584130A1 (en) 1985-06-28 1987-01-02 Schlagmuller Paul Protective roller blind for openings in walls
DE3925625A1 (en) 1989-07-31 1991-02-14 Schleicher Relais Clocked constant-power source esp. for timing relay - has output MOSFET switch protected by bipolar transistor for provision of load current via storage inductor
EP0703344A1 (en) * 1994-09-22 1996-03-27 Gottlieb Klenk Selfactuating stopping device for a roller blind, especially for a roller shutter
DE4445978A1 (en) * 1994-12-22 1996-06-27 Wiral Rolladenfertigungs Und V Roller door or shutter safety device operating system
WO1996022446A1 (en) 1995-01-18 1996-07-25 V. Kann Rasmussen Industri A/S An end stop device for an electrically operated window screening arrangement
DE19610877A1 (en) * 1995-06-30 1997-01-02 Becker Antriebe Gmbh Control for motorised drive for roller shutter or door

Also Published As

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DE69815205D1 (en) 2003-07-10
ES2124683T1 (en) 1999-02-16
EP0875656B1 (en) 2003-06-04
ATE242414T1 (en) 2003-06-15
DE69815205T2 (en) 2004-04-15
FR2762643B1 (en) 1999-07-02
FR2762643A1 (en) 1998-10-30
ES2124683T3 (en) 2004-04-01

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