EP0790385A1 - Roller shutter operating device - Google Patents

Roller shutter operating device Download PDF

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Publication number
EP0790385A1
EP0790385A1 EP97420024A EP97420024A EP0790385A1 EP 0790385 A1 EP0790385 A1 EP 0790385A1 EP 97420024 A EP97420024 A EP 97420024A EP 97420024 A EP97420024 A EP 97420024A EP 0790385 A1 EP0790385 A1 EP 0790385A1
Authority
EP
European Patent Office
Prior art keywords
screw
operating device
toothed wheel
shaft
rolling shutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97420024A
Other languages
German (de)
French (fr)
Inventor
Christophe Viotte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simu SAS
Original Assignee
Simu SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Simu SAS filed Critical Simu SAS
Publication of EP0790385A1 publication Critical patent/EP0790385A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • 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
    • E06B9/62—Counterweighting arrangements
    • 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
    • E06B9/74—Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation

Definitions

  • a rolling shutter generally comprises a shaft on which an apron can be more or less wound as a function of the rotation of the shaft around its largest axis.
  • the shaft rotation drive systems are varied: it can be an electric motor or a mechanical winch, it is also possible for the user to act by direct action on the roller shutter deck, the latter then being provided with a compensation device capable of maintaining the flap in the position in which it has been released by the user.
  • the object of the invention is the production of an operating device for a roller shutter allowing an effective disengagement of the drive system while being economical, providing this function in a safe manner and being of an implementation easy.
  • the invention relates to an operating device for a roller shutter comprising a shaft for winding an apron, said shaft being driven in rotation by a motor supported by a base, characterized in that said base is integral with a toothed wheel capable of being engaged with a screw so as to immobilize said rotating base and in that said screw is provided with at least one flat, so that the mechanical connection between said toothed wheel and said screw is disengageable .
  • the disengagement of the operating device is particularly simple since it suffices to rotate the screw until its flat face of the gear wheel, the clearance between the screw and the gear wheel then being sufficient to allow relative movement of one with respect to the other.
  • the invention is particularly attractive from the point of view of economic view, because it relies on the use of a toothed wheel and a screw which are widely used in mechanical winches for driving roller shutter winding shafts.
  • This use of parts already widely used avoids an important study of resistance of materials because, in its normal use, the winch already ensures a function of locking in rotation as well as a function of connection between several mechanical parts. This winch is therefore already sized for this new application since it provides substantially the same functions.
  • the worm and the toothed wheel belonging to the winch provide a secure rotation immobilization since the effect is obtained by a toothing, which is particularly suitable for accepting the transmission effort, therefore an effort rotation lock.
  • these parts provide an easy disengagement since the toothing angle is favorable for the rotation of the screw in the direction of disengagement, even under load; it is thus easy to disengage the device.
  • the use of a screw and toothed wheel system implies the assurance of easily and quickly finding a re-clutch position thanks to the multiplicity of teeth distributed around the periphery of the wheel and thanks to the continuity of the thread. of the screw.
  • the screw is provided with two flats arranged symmetrically with respect to its largest axis. It can also be provided that the device comprises means for elastic positioning of the screw.
  • the invention can be used in a device comprising a compensating spring capable of rotating the shaft so as to wind the apron when the connection between the wheel and the screw is disengaged.
  • the invention can also be used in a device comprising a retarder for the downward movement of the deck when the connection between the gear wheel and the screw is disengaged.
  • the screw can be obtained by simple machining of a screw used in a conventional device for operating a rolling shutter with a mechanical winch.
  • the operating device 1 for rolling shutter shown in FIG. 1 essentially consists of a winding shaft 2 in which is housed a tubular motor consisting of a fixed casing 3 containing an electric motor 4, a reduction gear 5 and a device limit switch 6.
  • a base 7, which supports the casing 3, is mounted integral with a fixed console 8 by means of a shaft 7 has penetrating into a housing 9 whose casing is rigidly fixed to the console 8.
  • a ring 10 integral with the shaft 2 is provided with an internal toothing cooperating with a pinion, not shown, which transmits to the end-of-travel device the movement of the shaft 2.
  • the output shaft of the reduction gear 5 carries a disc 11 in taken with the shaft 2 and capable of transmitting a rotational movement from the motor to the winding shaft.
  • a compensation spring 12 is housed inside the shaft 2 near its other end.
  • One end of the spring 12 is fixed in a stationary disc 13 inside the shaft 2 while its other end is secured to a second disc 14 movable in rotation with the shaft 2.
  • a shaft 15 supports the disc 13 and is fixed by means of a bracket 16 to a support console 17.
  • the compensation spring 12 is not bandaged. If it is necessary to close the shutter, the electric motor 4 is activated, so that it transmits through the reduction gear 5 and thanks to the drive disc 11 a torque to the shaft 2 which progressively unrolls the deck 18 The rotational movement of the shaft 2 progressively bands the spring 12, so that the latter stores energy. The movement of the apron 18 can be stopped at any time by means of a brake (not shown) associated with the motor 4.
  • the motor is activated in the opposite direction in order to communicate to the 'shaft 2 a rotational movement in the opposite direction.
  • the compensation spring 12 then tends to rotate the shaft 2 in the same direction as the motor 4 by restoring the energy which it has stored during the descent of the deck 18.
  • the compensation spring 12 is dimensioned so that it tends to raise the bulkhead 18 in the absence of the motor 4 and the brake associated with it.
  • the housing 9 comprises a toothed wheel 19 integral in rotation with the shaft 7 a , which is mounted on this shaft for example by means of a nut 20.
  • a worm 21 is disposed near the toothed wheel 19, so that the toothing of the toothed wheel 19 is engaged with the thread of the screw 21 as shown in Figure 3.
  • the screw 21 is a screw of the type used in a device for maneuvering a roller shutter with a mechanical winch. It is therefore a part produced in very large series whose marginal cost is relatively low.
  • This screw is held between two plates 22 and 23 carried by the ends of two springs 24 and 25 bearing against stops 26 and 27 of the housing 9.
  • the springs 24 and 25 constitute means for elastic positioning of the screw 21 by relative to the axis of the shaft 2.
  • a handle 30 is connected to the plate 22 through the stop 26 and the spring 24. This handle makes it possible to impart to the screw 21 a rotational movement around its axis.
  • the screw 21 is provided with two flats 21 a and 21 b .
  • These flats make it possible to provide a clearance J between the external envelope of the thread of the screw 21 and the external envelope of the toothing of the toothed wheel 19, so that the mechanical connection between the toothed wheel and the screw is disengaged when the screw is in the position of Figure 3. It can provide a clearance J, for example less than 10 mm and preferably of the order of a few millimeters.
  • Figures 1 to 5 shows a use of the invention on a shutter or a panic door. Indeed, when it is necessary to quickly open the shutter of this embodiment, it suffices to turn the handle 30 by a quarter of a turn to disengage the device and allow the rotation of the base 7 and of the motor 4 so that, under the effect of the compensating spring 12 and possibly a vertical upward thrust, the deck 18 is wound around the shaft 2.
  • the disengagement of the device is particularly easy.
  • a rotation of the handle 30 in the trigonometric direction or in the opposite trigonometric direction leads to disengagement of the device, which is particularly important when this device must be handled by a person not initiated or acting under the influence of panic.
  • FIG. 6 represents a use of the invention on a door of the fire stop type. Parts or elements similar or identical to those of FIG. 1 bear references increased by 50.
  • This device 51 differs from that of the embodiment of FIGS. 1 to 5 essentially in that the compensating spring is absent and in that a vibrator escapement 62 acts as a retarder during the movement of the shaft 52.
  • the bulkhead 68 When the mechanical connection between the toothed wheel 69 and the screw 71 is disengaged, the bulkhead 68 is driven by gravity and it closes the opening located under the shaft 52, while being braked by the exhaust 62.
  • This device is particularly advantageous for use on a fire type door. Indeed, as before, it is easy to maneuver the screw 71 to unlock the mechanical connection with the toothed wheel 69 and thus free the apron 68 in the event of fire. As in the previous embodiment, it suffices to make the screw 71 a quarter turn in the opposite direction or in the same direction to re-engage the device and be able to control the movement of the deck 68 by means of the electric motor 54 .
  • FIG. 7 represents a detail of a part of a rolling shutter operating device according to a third embodiment of the invention in which elements similar to those of the embodiment of FIGS. 1 to 5 bear identical augmented references of 100.
  • This device 101 comprises a winding shaft 102 in which is housed an envelope 103 containing an electric motor, not shown.
  • An end-of-travel device 106 is connected to a ring 110, integral with the winding shaft 102, by a drive pinion 131 which allows the movements of the shaft 102 to be transmitted to the device 106 by means of internal toothing 110 a of the ring 110.
  • a base 107 is integral with the casing 103 and is extended by a shaft 107 a penetrating into a housing 109 comprising a toothed wheel 119 and a worm screw 121 in accordance with the invention and similar to those of the first embodiment.
  • This device further comprises a fixed part 132 housed in the shaft 102 and supporting the limit switch device 106 and the base 107.
  • the part 132 carries a first half 133a of a rotary connector 133, the second half 133b of which is carried by the base 107 opposite the first half.
  • the rotary connector can be of any known type and for example with brushes in rubbing contact on a contact track. This connector allows the electrical current to be conveyed to the motor by a cable 134, a first part 134 a of which is fixed to the housing 109 and to the part 132 and a second part 134 b of which enters an orifice 107 b of the base 107 .
  • the toothed wheel is driven in rotation, for example by a compensation spring similar to that of FIG. 1, and the base 107 rotates relative to the fixed part 132, so that an electric cable cannot simply be fixed at the same time on these two parts.
  • the rotary connector 133 is provided between them so that the cable 134 is not damaged during movement after declutching.
  • FIG. 8 represents a fourth embodiment of the invention in which elements similar to those of the embodiment of FIG. 7 bear identical references increased by 100.
  • This device differs from the preceding essentially on the one hand in that a differential connection is provided between the shaft 207 a and the base 207 and on the other hand in that the end-of-travel device is eliminated in favor of detectors placed, for example, on the path of the roller shutter deck.
  • the differential connection between the shaft 207a and the base 207 is achieved through a toothed wheel 237 mounted at the end of the shaft 207 opposite to that which carries the toothed wheel 219.
  • the toothed wheel 237 meshes with a pinion 238 engaged with internal toothing 232 a of the fixed part 232.
  • the axis of rotation 239 of the pinion 238 is carried by the base 207, so that the toothed wheel 237 can drive the base 207 in rotation using the pinion 238 as a satellite.
  • several pinions 238 can be distributed around the circumference of the toothed wheel 237.
  • the operation is as follows: as long as the toothed wheel 219 is immobilized by the endless screw 221, the toothed wheel 237 blocks the base 207 in rotation. If the connection between the endless screw 221 and the toothed wheel 219 is disengaged, the toothed wheel 237 can rotate and no longer opposes the movement of the base 207 transmitted to it by the pinion 238.
  • the differential connection thus produced between the toothed wheel 219 and the base 207 makes it possible to use the ratio of the numbers of teeth of the elements 237, 238 and 232 a to form a speed reducer.
  • this construction is particularly advantageous for heavy rolling shutters such as steel grids for protecting stores.
  • the motor is subjected to a large torque and the differential connection makes it possible to reduce the force at the level of the contact between the worm 221 and the toothed wheel 219, which makes it possible to reduce the force of disengagement of their respective teeth and facilitates disengagement.
  • differential link is also applicable in the case of a mechanism incorporating a limit switch device. This modification is within the reach of man of the job.
  • the invention has been presented with roller shutters driven by electric motors, but it applies regardless of the type of the roller shutter drive device. In particular, it applies in the case of a rolling shutter driven by means of a mechanical winch.

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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)

Abstract

The operating mechanism for a roller blinds includes a shaft (2) on which the blinds itself (18) is rolled. The shaft is rotated by an electric motor (40) supported by a base (7). The base on which the electric motor is supported is solidly attached to a toothed wheel (19) which is able to be locked in a rotational position by a screw (21). The screw is provided with a flat region, so that the mechanical connection between the toothed wheel and the screw may be de-clutched. The electric motor may include a rotary contact assembly in order to supply power to the motor whilst the roller is turning.

Description

L'invention concerne un dispositif de manoeuvre pour volet roulant. Un volet roulant comprend généralement un arbre sur lequel peut être plus ou moins enroulé un tablier en fonction de la rotation de l'arbre autour de son plus grand axe. Les systèmes d'entraînement en rotation de l'arbre sont variés : il peut s'agir d'un moteur électrique ou d'un treuil mécanique, il est aussi possible que l'utilisateur agisse par action directe sur le tablier du volet roulant, celui-ci étant alors pourvu d'un dispositif de compensation apte à maintenir le volet dans la position dans laquelle il a été lâché par l'utilisateur.The invention relates to an operating device for a roller shutter. A rolling shutter generally comprises a shaft on which an apron can be more or less wound as a function of the rotation of the shaft around its largest axis. The shaft rotation drive systems are varied: it can be an electric motor or a mechanical winch, it is also possible for the user to act by direct action on the roller shutter deck, the latter then being provided with a compensation device capable of maintaining the flap in the position in which it has been released by the user.

Dans tous les cas, il est parfois nécessaire de débrayer le système d'entraînement du volet roulant pour raisons de sécurité ou pour permettre une intervention de maintenance sur le dispositif. Dans les dispositifs connus de l'art antérieur, on doit prévoir un système de débrayage propre, ce système devant faire l'objet d'une étude élaborée de résistance de matériaux et nécessitant la réalisation de pièces spécifiques.In all cases, it is sometimes necessary to disengage the shutter drive system for safety reasons or to allow maintenance work on the device. In the devices known from the prior art, a clean release system must be provided, this system having to be the subject of an elaborate study of the resistance of materials and requiring the production of specific parts.

Le but de l'invention est la réalisation d'un dispositif de manoeuvre pour volet roulant permettant un débrayage efficace du système d'entraînement tout en étant économique, en apportant cette fonction d'une façon sûre et en étant d'une mise en oeuvre facile.The object of the invention is the production of an operating device for a roller shutter allowing an effective disengagement of the drive system while being economical, providing this function in a safe manner and being of an implementation easy.

Dans cet esprit, l'invention concerne un dispositif de manoeuvre pour volet roulant comprenant un arbre d'enroulement d'un tablier, ledit arbre étant entraîné en rotation par un moteur supporté par une embase, caractérisé en ce que ladite embase est solidaire d'une roue dentée susceptible d'être en prise avec une vis de façon à immobiliser ladite embase en rotation et en ce que ladite vis est pourvue d'au moins un méplat, de sorte que la liaison mécanique entre ladite roue dentée et ladite vis est débrayable.In this spirit, the invention relates to an operating device for a roller shutter comprising a shaft for winding an apron, said shaft being driven in rotation by a motor supported by a base, characterized in that said base is integral with a toothed wheel capable of being engaged with a screw so as to immobilize said rotating base and in that said screw is provided with at least one flat, so that the mechanical connection between said toothed wheel and said screw is disengageable .

Grâce à l'invention, le débrayage du dispositif de manoeuvre est particulièrement simple puisqu'il suffit de faire tourner la vis jusqu'à ce que son méplat soit en regard de la roue dentée, le jeu entre la vis et la roue dentée étant alors suffisant pour permettre un mouvement relatif de l'une par rapport à l'autre.Thanks to the invention, the disengagement of the operating device is particularly simple since it suffices to rotate the screw until its flat face of the gear wheel, the clearance between the screw and the gear wheel then being sufficient to allow relative movement of one with respect to the other.

L'invention est particulièrement attractive du point de vue économique, car elle repose sur l'utilisation d'une roue dentée et d'une vis qui sont très largement employées dans les treuils mécaniques d'entraînement des arbres d'enroulement de volet roulant. Cette utilisation de pièces déjà largement employées évite une étude importante de résistance de matériaux car, dans son utilisation normale, le treuil assure déjà une fonction de blocage en rotation ainsi qu'une fonction de liaison entre plusieurs pièces mécaniques. Ce treuil est donc déjà dimensionné pour cette nouvelle application puisqu'il assure sensiblement les mêmes fonctions.The invention is particularly attractive from the point of view of economic view, because it relies on the use of a toothed wheel and a screw which are widely used in mechanical winches for driving roller shutter winding shafts. This use of parts already widely used avoids an important study of resistance of materials because, in its normal use, the winch already ensures a function of locking in rotation as well as a function of connection between several mechanical parts. This winch is therefore already sized for this new application since it provides substantially the same functions.

Cette utilisation de pièces déjà largement employées évite aussi la multiplication des outillages puisqu'il n'est pas nécessaire de créer des pièces nouvelles. L'effet de série ainsi obtenu permet en outre de diminuer le prix unitaire des pièces déjà utilisées.This use of parts already widely used also avoids the multiplication of tools since it is not necessary to create new parts. The series effect thus obtained also makes it possible to reduce the unit price of the parts already used.

D'un point de vue mécanique, la vis sans fin et la roue dentée appartenant au treuil apportent une immobilisation de rotation sûre puisque l'effet est obtenu par une denture, laquelle est particulièrement apte à accepter l'effort de transmission, donc un effort de blocage en rotation. D'autre part, ces pièces apportent un débrayage facile puisque l'angle de denture est favorable à la rotation de la vis dans le sens de désengagement, même sous charge ; il est ainsi facile de débrayer le dispositif. En outre, l'utilisation d'un système à vis et roue dentée implique l'assurance de trouver facilement et rapidement une position de ré-embrayage grâce à la multiplicité des dents réparties à la périphérie de la roue et grâce à la continuité du filetage de la vis.From a mechanical point of view, the worm and the toothed wheel belonging to the winch provide a secure rotation immobilization since the effect is obtained by a toothing, which is particularly suitable for accepting the transmission effort, therefore an effort rotation lock. On the other hand, these parts provide an easy disengagement since the toothing angle is favorable for the rotation of the screw in the direction of disengagement, even under load; it is thus easy to disengage the device. In addition, the use of a screw and toothed wheel system implies the assurance of easily and quickly finding a re-clutch position thanks to the multiplicity of teeth distributed around the periphery of the wheel and thanks to the continuity of the thread. of the screw.

Selon une variante avantageuse de l'invention, la vis est pourvue de deux méplats disposés symétriquement par rapport à son plus grand axe. On peut en outre prévoir que le dispositif comprend des moyens de positionnement élastique de la vis.According to an advantageous variant of the invention, the screw is provided with two flats arranged symmetrically with respect to its largest axis. It can also be provided that the device comprises means for elastic positioning of the screw.

Enfin, l'invention peut être utilisée dans un dispositif comprenant un ressort de compensation apte à faire tourner l'arbre de façon à enrouler le tablier lorsque la liaison entre la roue et la vis est débrayée. L'invention peut aussi être utilisée dans un dispositif comprenant un ralentisseur du mouvement de descente du tablier lorsque la liaison entre la roue dentée et la vis est débrayée. Dans tous les cas, la vis peut être obtenue par un simple usinage d'une vis utilisée dans un dispositif classique de manoeuvre de volet roulant à treuil mécanique.Finally, the invention can be used in a device comprising a compensating spring capable of rotating the shaft so as to wind the apron when the connection between the wheel and the screw is disengaged. The invention can also be used in a device comprising a retarder for the downward movement of the deck when the connection between the gear wheel and the screw is disengaged. In all cases, the screw can be obtained by simple machining of a screw used in a conventional device for operating a rolling shutter with a mechanical winch.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaîtront plus clairement à la lumière de la description qui va suivre de quatre modes de réalisation d'un dispositif de manoeuvre pour volet roulant conforme à son principe, donnée uniquement à titre d'exemple et faite en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue de face d'un volet roulant incorporant un premier mode de réalisation de l'invention ;
  • la figure 2 est une vue en coupe selon la ligne II-II à la figure 1, alors que le dispositif est en position embrayée ;
  • la figure 3 est une vue en coupe selon la ligne III-III à la figure 2 ;
  • la figure 4 est une vue similaire à la figure 2, alors que le dispositif est débrayé ;
  • la figure 5 est une vue en coupe selon la ligne IV-IV à la figure 3 ;
  • la figure 6 est une vue similaire à la figure 1 pour un second mode de réalisation d'un dispositif de manoeuvre de volet roulant ;
  • la figure 7 est une vue de détail d'une partie d'un dispositif de manoeuvre de volet roulant selon un troisième mode de réalisation de l'invention et ;
  • la figure 8 est une vue similaire à la figure 7 pour un quatrième mode de réalisation d'un dispositif de manoeuvre de volet roulant.
The invention will be better understood and other advantages thereof will appear more clearly in the light of the following description of four embodiments of an operating device for rolling shutters in accordance with its principle, given solely by way of example and made with reference to the accompanying drawings in which:
  • Figure 1 is a front view of a roller shutter incorporating a first embodiment of the invention;
  • Figure 2 is a sectional view along line II-II in Figure 1, while the device is in the engaged position;
  • Figure 3 is a sectional view along line III-III in Figure 2;
  • Figure 4 is a view similar to Figure 2, while the device is disengaged;
  • Figure 5 is a sectional view along the line IV-IV in Figure 3;
  • Figure 6 is a view similar to Figure 1 for a second embodiment of a shutter operating device;
  • FIG. 7 is a detailed view of a part of a rolling shutter operating device according to a third embodiment of the invention and;
  • Figure 8 is a view similar to Figure 7 for a fourth embodiment of a shutter operating device.

Le dispositif 1 de manoeuvre pour volet roulant représenté à la figure 1 se compose essentiellement d'un arbre d'enroulement 2 dans lequel est logé un moteur tubulaire constitué d'une enveloppe fixe 3 contenant un moteur électrique 4, un réducteur 5 et un dispositif de fin de course 6. Une embase 7, qui supporte l'enveloppe 3, est montée solidaire d'une console fixe 8 grâce à un arbre 7a pénétrant dans un boîtier 9 dont l'enveloppe est rigidement fixée à la console 8. Une bague 10 solidaire de l'arbre 2 est munie d'une denture interne coopérant avec un pignon, non représenté, qui transmet au dispositif de fin de course le mouvement de l'arbre 2. L'arbre de sortie du réducteur 5 porte un disque 11 en prise avec l'arbre 2 et apte à transmettre un mouvement de rotation du moteur à l'arbre d'enroulement.The operating device 1 for rolling shutter shown in FIG. 1 essentially consists of a winding shaft 2 in which is housed a tubular motor consisting of a fixed casing 3 containing an electric motor 4, a reduction gear 5 and a device limit switch 6. A base 7, which supports the casing 3, is mounted integral with a fixed console 8 by means of a shaft 7 has penetrating into a housing 9 whose casing is rigidly fixed to the console 8. A ring 10 integral with the shaft 2 is provided with an internal toothing cooperating with a pinion, not shown, which transmits to the end-of-travel device the movement of the shaft 2. The output shaft of the reduction gear 5 carries a disc 11 in taken with the shaft 2 and capable of transmitting a rotational movement from the motor to the winding shaft.

D'autre part, un ressort de compensation 12 est logé à l'intérieur de l'arbre 2 à proximité de son autre extrémité. Une extrémité du ressort 12 est fixée dans un disque 13 immobile à l'intérieur de l'arbre 2 alors que son autre extrémité est solidaire d'un second disque 14 mobile en rotation avec l'arbre 2. Un arbre 15 supporte le disque 13 et est fixé au moyen d'un étrier 16 à une console 17 de supportage.On the other hand, a compensation spring 12 is housed inside the shaft 2 near its other end. One end of the spring 12 is fixed in a stationary disc 13 inside the shaft 2 while its other end is secured to a second disc 14 movable in rotation with the shaft 2. A shaft 15 supports the disc 13 and is fixed by means of a bracket 16 to a support console 17.

Le fonctionnement est le suivant :The operation is as follows:

Lorsque le tablier 18 du volet roulant est complètement enroulé sur l'arbre 2, le ressort de compensation 12 n'est pas bandé. S'il est nécessaire de fermer le volet roulant, le moteur électrique 4 est activé, de sorte qu'il transmet à travers le réducteur 5 et grâce au disque d'entraînement 11 un couple à l'arbre 2 qui déroule progressivement le tablier 18. Le mouvement de rotation de l'arbre 2 bande progressivement le ressort 12, de sorte que celui-ci emmagasine de l'énergie. Le mouvement du tablier 18 peut être arrêté à tout moment grâce à un frein non représenté associé au moteur 4. Lorsqu'il est nécessaire d'enrouler le tablier 18 du volet roulant, le moteur est activé dans le sens inverse afin de communiquer à l'arbre 2 un mouvement de rotation en sens inverse. Le ressort de compensation 12 tend alors à faire tourner l'arbre 2 dans le même sens que le moteur 4 en restituant l'énergie qu'il a emmagasinée lors de la descente du tablier 18.When the apron 18 of the roller shutter is completely wound on the shaft 2, the compensation spring 12 is not bandaged. If it is necessary to close the shutter, the electric motor 4 is activated, so that it transmits through the reduction gear 5 and thanks to the drive disc 11 a torque to the shaft 2 which progressively unrolls the deck 18 The rotational movement of the shaft 2 progressively bands the spring 12, so that the latter stores energy. The movement of the apron 18 can be stopped at any time by means of a brake (not shown) associated with the motor 4. When it is necessary to wind the apron 18 of the roller shutter, the motor is activated in the opposite direction in order to communicate to the 'shaft 2 a rotational movement in the opposite direction. The compensation spring 12 then tends to rotate the shaft 2 in the same direction as the motor 4 by restoring the energy which it has stored during the descent of the deck 18.

Le ressort de compensation 12 est dimensionné de telle sorte qu'il tend à faire remonter le tablier 18 en l'absence du moteur 4 et du frein qui lui est associé. Comme il apparaît plus clairement à la figure 2, le boîtier 9 comprend une roue dentée 19 solidaire en rotation de l'arbre 7a, qui est montée sur cet arbre par exemple au moyen d'un écrou 20.The compensation spring 12 is dimensioned so that it tends to raise the bulkhead 18 in the absence of the motor 4 and the brake associated with it. As can be seen more clearly in FIG. 2, the housing 9 comprises a toothed wheel 19 integral in rotation with the shaft 7 a , which is mounted on this shaft for example by means of a nut 20.

Conformément à l'invention, une vis sans fin 21 est disposée à proximité de la roue dentée 19, de sorte que la denture de la roue dentée 19 est en prise avec le filet de la vis 21 ainsi que cela apparaît à la figure 3. La vis 21 est une vis du type utilisé dans un dispositif de manoeuvre de volet roulant à treuil mécanique. Il s'agit donc d'une pièce fabriquée en très grande série dont le coût marginal est relativement faible. Cette vis est maintenue entre deux plaques 22 et 23 portées par les extrémités de deux ressorts 24 et 25 en appui contre des butées 26 et 27 du boîtier 9. Ainsi, les ressorts 24 et 25 constituent des moyens de positionnement élastique de la vis 21 par rapport à l'axe de l'arbre 2. Une poignée 30 est reliée à la plaque 22 à travers la butée 26 et le ressort 24. Cette poignée permet d'imprimer à la vis 21 un mouvement de rotation autour de son axe.According to the invention, a worm 21 is disposed near the toothed wheel 19, so that the toothing of the toothed wheel 19 is engaged with the thread of the screw 21 as shown in Figure 3. The screw 21 is a screw of the type used in a device for maneuvering a roller shutter with a mechanical winch. It is therefore a part produced in very large series whose marginal cost is relatively low. This screw is held between two plates 22 and 23 carried by the ends of two springs 24 and 25 bearing against stops 26 and 27 of the housing 9. Thus, the springs 24 and 25 constitute means for elastic positioning of the screw 21 by relative to the axis of the shaft 2. A handle 30 is connected to the plate 22 through the stop 26 and the spring 24. This handle makes it possible to impart to the screw 21 a rotational movement around its axis.

Conformément à l'invention et ainsi qu'il apparaît plus clairement aux figures 4 et 5, la vis 21 est pourvue de deux méplats 21a et 21b. Ces méplats permettent de ménager un jeu J entre l'enveloppe externe du filet de la vis 21 et l'enveloppe externe de la denture de la roue dentée 19, de sorte que la liaison mécanique entre la roue dentée et la vis est débrayée lorsque la vis se trouve dans la position de la figure 3. On peut prévoir un jeu J, par exemple inférieur à 10 mm et de préférence de l'ordre de quelques millimètres.According to the invention and as it appears more clearly in Figures 4 and 5, the screw 21 is provided with two flats 21 a and 21 b . These flats make it possible to provide a clearance J between the external envelope of the thread of the screw 21 and the external envelope of the toothing of the toothed wheel 19, so that the mechanical connection between the toothed wheel and the screw is disengaged when the screw is in the position of Figure 3. It can provide a clearance J, for example less than 10 mm and preferably of the order of a few millimeters.

Le mode de réalisation des figures 1 à 5 représente une utilisation de l'invention sur un volet ou une porte anti-panique. En effet, lorsqu'il est nécessaire d'ouvrir rapidement le volet de ce mode de réalisation, il suffit de tourner la poignée 30 d'un quart de tour pour débrayer le dispositif et permettre la rotation de l'embase 7 et du moteur 4 de sorte que, sous l'effet du ressort de compensation 12 et éventuellement d'une poussée verticale vers le haut, le tablier 18 est enroulé autour de l'arbre 2.The embodiment of Figures 1 to 5 shows a use of the invention on a shutter or a panic door. Indeed, when it is necessary to quickly open the shutter of this embodiment, it suffices to turn the handle 30 by a quarter of a turn to disengage the device and allow the rotation of the base 7 and of the motor 4 so that, under the effect of the compensating spring 12 and possibly a vertical upward thrust, the deck 18 is wound around the shaft 2.

Lorsqu'il est nécessaire de commander à nouveau le dispositif avec le moteur électrique 4, il suffit de faire effectuer à la poignée 30 un quart de tour dans le même sens ou dans le sens opposé pour que la liaison mécanique entre la roue dentée 19 et la vis 21 soit à nouveau embrayée. On peut noter que grâce à la construction du dispositif avec une roue dentée et une vis, la position de ré-embrayage peut être facilement et rapidement trouvée grâce à la multiplicité des dents de la roue dentée 19 et des filets de la vis 21.When it is necessary to control the device again with the electric motor 4, it suffices to make the handle 30 a quarter turn in the same direction or in the opposite direction so that the mechanical connection between the toothed wheel 19 and the screw 21 is again engaged. It can be noted that thanks to the construction of the device with a toothed wheel and a screw, the re-clutch position can be easily and quickly found thanks to the multiplicity of the teeth of the toothed wheel 19 and the threads of the screw 21.

En outre, le débrayage du dispositif est particulièrement aisé. Une rotation de la poignée 30 dans le sens trigonométrique ou dans le sens trigonométrique inverse conduit au débrayage du dispositif, ce qui est particulièrement important lorsque ce dispositif doit être manipulé par une personne non initiée ou agissant sous l'emprise de la panique.In addition, the disengagement of the device is particularly easy. A rotation of the handle 30 in the trigonometric direction or in the opposite trigonometric direction leads to disengagement of the device, which is particularly important when this device must be handled by a person not initiated or acting under the influence of panic.

Il est à noter que grâce à l'utilisation de pièces employées en très grande quantité pour des treuils mécaniques, le coût de ces pièces est faible et donc le coût de la fonction de débrayage ainsi obtenue est aussi faible.It should be noted that thanks to the use of parts used in very large quantities for mechanical winches, the cost of these parts is low and therefore the cost of the declutching function thus obtained is also low.

La figure 6 représente une utilisation de l'invention sur une porte du type coupe-feu. Les pièces ou éléments similaires ou identiques à ceux de la figure 1 portent des références augmentées de 50.FIG. 6 represents a use of the invention on a door of the fire stop type. Parts or elements similar or identical to those of FIG. 1 bear references increased by 50.

Ce dispositif 51 diffère de celui du mode de réalisation des figures 1 à 5 essentiellement en ce que le ressort de compensation est absent et en ce qu'un échappement à vibreur 62 joue le rôle de ralentisseur lors du mouvement de l'arbre 52.This device 51 differs from that of the embodiment of FIGS. 1 to 5 essentially in that the compensating spring is absent and in that a vibrator escapement 62 acts as a retarder during the movement of the shaft 52.

En utilisant l'invention, il est possible de débrayer la liaison mécanique entre une roue dentée 69 solidaire de l'arbre 57a et une vis 71 montée dans un boîtier 59 fixé sur une console 58.By using the invention, it is possible to disengage the mechanical connection between a toothed wheel 69 secured to the shaft 57a and a screw 71 mounted in a housing 59 fixed to a console 58.

Lorsque la liaison mécanique entre la roue dentée 69 et la vis 71 est débrayée, le tablier 68 est entraîné par gravité et il ferme l'ouverture située sous l'arbre 52, tout en étant freiné par l'échappement 62.When the mechanical connection between the toothed wheel 69 and the screw 71 is disengaged, the bulkhead 68 is driven by gravity and it closes the opening located under the shaft 52, while being braked by the exhaust 62.

Ce dispositif est particulièrement avantageux pour une utilisation sur une porte de type coupe-feu. En effet, comme précédemment, il est aisé de manoeuvrer la vis 71 pour déverrouiller la liaison mécanique avec la roue dentée 69 et ainsi libérer le tablier 68 en cas d'incendie. Comme dans le mode de réalisation précédent, il suffit de faire effectuer à la vis 71 un quart de tour dans le sens inverse ou dans le même sens pour ré-embrayer le dispositif et pouvoir commander le déplacement du tablier 68 au moyen du moteur électrique 54.This device is particularly advantageous for use on a fire type door. Indeed, as before, it is easy to maneuver the screw 71 to unlock the mechanical connection with the toothed wheel 69 and thus free the apron 68 in the event of fire. As in the previous embodiment, it suffices to make the screw 71 a quarter turn in the opposite direction or in the same direction to re-engage the device and be able to control the movement of the deck 68 by means of the electric motor 54 .

La figure 7 représente un détail d'une partie d'un dispositif de manoeuvre de volet roulant selon un troisième mode de réalisation de l'invention dans lequel les éléments similaires à ceux du mode de réalisation des figures 1 à 5 portent des références identiques augmentées de 100.FIG. 7 represents a detail of a part of a rolling shutter operating device according to a third embodiment of the invention in which elements similar to those of the embodiment of FIGS. 1 to 5 bear identical augmented references of 100.

Ce dispositif 101 comprend un arbre d'enroulement 102 dans lequel est logé une enveloppe 103 contenant un moteur électrique, non représenté. Un dispositif de fin de course 106 est relié à une bague 110, solidaire de l'arbre d'enroulement 102, par un pignon d'entraînement 131 qui permet de transmettre au dispositif 106 les mouvements de l'arbre 102 grâce à une denture interne 110a de la bague 110. Une embase 107 est solidaire de l'enveloppe 103 et se prolonge par un arbre 107a pénétrant dans un boîtier 109 comprenant une roue dentée 119 et une vis sans fin 121 conformes à l'invention et analogues à celles du premier mode de réalisation. Ce dispositif comprend en outre une partie fixe 132 logée dans l'arbre 102 et supportant le dispositif de fin de course 106 et l'embase 107. La partie 132 porte une première moitié 133a d'un connecteur tournant 133 dont la seconde moitié 133b est portée par l'embase 107 en regard de la première moitié. Le connecteur tournant peut être de tout type connu et par exemple à balais en contact frottant sur une piste de contact. Ce connecteur permet d'acheminer au moteur le courant électrique par un câble 134 dont une première partie 134a est fixée sur le boîtier 109 et sur la partie 132 et dont une seconde partie 134b pénètre dans un orifice 107b de l'embase 107.This device 101 comprises a winding shaft 102 in which is housed an envelope 103 containing an electric motor, not shown. An end-of-travel device 106 is connected to a ring 110, integral with the winding shaft 102, by a drive pinion 131 which allows the movements of the shaft 102 to be transmitted to the device 106 by means of internal toothing 110 a of the ring 110. A base 107 is integral with the casing 103 and is extended by a shaft 107 a penetrating into a housing 109 comprising a toothed wheel 119 and a worm screw 121 in accordance with the invention and similar to those of the first embodiment. This device further comprises a fixed part 132 housed in the shaft 102 and supporting the limit switch device 106 and the base 107. The part 132 carries a first half 133a of a rotary connector 133, the second half 133b of which is carried by the base 107 opposite the first half. The rotary connector can be of any known type and for example with brushes in rubbing contact on a contact track. This connector allows the electrical current to be conveyed to the motor by a cable 134, a first part 134 a of which is fixed to the housing 109 and to the part 132 and a second part 134 b of which enters an orifice 107 b of the base 107 .

Lorsque le dispositif de l'invention est débrayé, c'est-à-dire lorsque la vis sans fin 121 est dans sa position dans laquelle un méplat est en regard de la roue dentée 119, la roue dentée est entraînée en rotation, par exemple par un ressort de compensation analogue à celui de la figure 1, et l'embase 107 tourne par rapport à la partie fixe 132, de sorte qu'un câble électrique ne peut simplement être fixé à la fois sur ces deux pièces. C'est pourquoi le connecteur tournant 133 est prévu entre elles de façon à ce que le câble 134 ne soit pas endommagé lors du mouvement après débrayage.When the device of the invention is disengaged, that is to say when the endless screw 121 is in its position in which a flat face is opposite the toothed wheel 119, the toothed wheel is driven in rotation, for example by a compensation spring similar to that of FIG. 1, and the base 107 rotates relative to the fixed part 132, so that an electric cable cannot simply be fixed at the same time on these two parts. This is why the rotary connector 133 is provided between them so that the cable 134 is not damaged during movement after declutching.

La figure 8 représente un quatrième mode de réalisation de l'invention dans lequel les éléments similaires à ceux du mode de réalisation de la figure 7 portent des références identiques augmentées de 100. Ce dispositif diffère du précédent essentiellement d'une part en ce qu'une liaison différentielle est prévue entre l'arbre 207a et l'embase 207 et d'autre part en ce que le dispositif de fin de course est supprimé au profit de détecteurs placés, par exemple, sur le trajet du tablier du volet roulant.FIG. 8 represents a fourth embodiment of the invention in which elements similar to those of the embodiment of FIG. 7 bear identical references increased by 100. This device differs from the preceding essentially on the one hand in that a differential connection is provided between the shaft 207 a and the base 207 and on the other hand in that the end-of-travel device is eliminated in favor of detectors placed, for example, on the path of the roller shutter deck.

La liaison différentielle entre l'arbre 207a et l'embase 207 est réalisée grâce à une roue dentée 237 montée à l'extrémité de l'arbre 207a opposée à celle qui porte la roue dentée 219. La roue dentée 237 engrène sur un pignon 238 en prise avec une denture interne 232a de la partie fixe 232. L'axe de rotation 239 du pignon 238 est porté par l'embase 207, de sorte que la roue dentée 237 peut entraîner en rotation l'embase 207 en utilisant le pignon 238 comme un satellite. Bien entendu, plusieurs pignons 238 peuvent être répartis sur la circonférence de la roue dentée 237.The differential connection between the shaft 207a and the base 207 is achieved through a toothed wheel 237 mounted at the end of the shaft 207 opposite to that which carries the toothed wheel 219. The toothed wheel 237 meshes with a pinion 238 engaged with internal toothing 232 a of the fixed part 232. The axis of rotation 239 of the pinion 238 is carried by the base 207, so that the toothed wheel 237 can drive the base 207 in rotation using the pinion 238 as a satellite. Of course, several pinions 238 can be distributed around the circumference of the toothed wheel 237.

Le fonctionnement est le suivant : tant que la roue dentée 219 est immobilisée par la vis sans fin 221, la roue dentée 237 bloque l'embase 207 en rotation. Si la liaison entre la vis sans fin 221 et la roue dentée 219 est débrayée, la roue dentée 237 peut tourner et ne s'oppose plus au mouvement de l'embase 207 que lui transmet le pignon 238.The operation is as follows: as long as the toothed wheel 219 is immobilized by the endless screw 221, the toothed wheel 237 blocks the base 207 in rotation. If the connection between the endless screw 221 and the toothed wheel 219 is disengaged, the toothed wheel 237 can rotate and no longer opposes the movement of the base 207 transmitted to it by the pinion 238.

La liaison différentielle réalisée ainsi entre la roue dentée 219 et l'embase 207 permet d'utiliser le rapport des nombres de dents des éléments 237, 238 et 232a pour former un réducteur de vitesse. En outre, cette construction est particulièrement avantageuse pour des volets roulants lourds tels que des grilles en acier de protection de magasins. En effet, dans ce cas, le moteur est soumis à un couple important et la liaison différentielle permet de diminuer l'effort au niveau du contact entre la vis sans fin 221 et la roue dentée 219, ce qui permet de diminuer l'effort de désengagement de leurs dentures respectives et facilite le débrayage.The differential connection thus produced between the toothed wheel 219 and the base 207 makes it possible to use the ratio of the numbers of teeth of the elements 237, 238 and 232 a to form a speed reducer. In addition, this construction is particularly advantageous for heavy rolling shutters such as steel grids for protecting stores. In this case, the motor is subjected to a large torque and the differential connection makes it possible to reduce the force at the level of the contact between the worm 221 and the toothed wheel 219, which makes it possible to reduce the force of disengagement of their respective teeth and facilitates disengagement.

Bien entendu, la liaison différentielle est aussi applicable dans le cas d'un mécanisme incorporant un dispositif de fin de course. Cette modification est à la portée de l'homme du métier.Of course, the differential link is also applicable in the case of a mechanism incorporating a limit switch device. This modification is within the reach of man of the job.

L'invention a été présentée avec des volets roulants entraînés à des moteurs électriques, mais elle s'applique quel que soit le type du dispositif d'entraînement du volet roulant. En particulier, elle s'applique dans le cas d'un volet roulant entraîné au moyen d'un treuil mécanique.The invention has been presented with roller shutters driven by electric motors, but it applies regardless of the type of the roller shutter drive device. In particular, it applies in the case of a rolling shutter driven by means of a mechanical winch.

Claims (11)

Dispositif de manoeuvre pour volet roulant comprenant un arbre (2, 52, 102, 202) d'enroulement d'un tablier (18, 68) ledit arbre étant entraîné en rotation par un moteur (4, 54) supporté par une embase (7, 57, 107, 207), caractérisé en ce que ladite embase est solidaire d'une roue dentée (19, 69, 119, 219) susceptible d'être en prise avec une vis (21, 71, 121, 221) de façon à immobiliser ladite embase en rotation et en ce que ladite vis est pourvue d'au moins un méplat (21a, 21b), de sorte que la liaison mécanique entre ladite roue dentée et ladite vis est débrayable.Operating device for a roller shutter comprising a shaft (2, 52, 102, 202) for winding an apron (18, 68) said shaft being rotated by a motor (4, 54) supported by a base (7 , 57, 107, 207), characterized in that said base is integral with a toothed wheel (19, 69, 119, 219) capable of being engaged with a screw (21, 71, 121, 221) so immobilizing said rotating base and in that said screw is provided with at least one flat (21a, 21b), so that the mechanical connection between said toothed wheel and said screw is disengageable. Dispositif de manoeuvre pour volet roulant selon la revendication 1, caractérisé en ce que ladite vis est pourvue de deux méplats (21a, 21b) disposés symétriquement par rapport au plus grand axe de ladite vis.Operating device for roller shutter according to claim 1, characterized in that said screw is provided with two flats (21a, 21b) arranged symmetrically with respect to the largest axis of said screw. Dispositif de manoeuvre pour volet roulant selon l'une quelconque des revendications 1 ou 2, caractérisé en ce qu'il comprend des moyens (24, 25) de positionnement élastiques de ladite vis (21) constitués par deux ressorts (24, 25) situés de part et d'autre de ladite vis (21).Operating device for rolling shutter according to any one of claims 1 or 2, characterized in that it comprises means (24, 25) for elastic positioning of said screw (21) constituted by two springs (24, 25) located on either side of said screw (21). Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un ressort de compensation (12) tendant à faire tourner ledit arbre (2) de façon à enrouler ledit tablier (18) lorsque la liaison entre ladite roue dentée (19) et ladite vis (21) est débrayée.Operating device for rolling shutter according to one of the preceding claims, characterized in that it comprises a compensation spring (12) tending to rotate said shaft (2) so as to wind said apron (18) when the connection between said toothed wheel (19) and said screw (21) is disengaged. Dispositif de manoeuvre pour volet roulant selon l'une des revendications 1 à 3, caractérisé en ce qu'il comprend un ralentisseur du mouvement (62) de descente du tablier lorsque la liaison entre ladite roue dentée (69) et ladite vis (71) est débrayée.Operating device for rolling shutter according to one of claims 1 to 3, characterized in that it comprises a retarder of the movement (62) of the lowering of the deck when the connection between said toothed wheel (69) and said screw (71) is disengaged. Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce que ladite vis (21) est obtenue par usinage d'une vis du type utilisé dans un dispositif de manoeuvre de volet roulant à treuil mécanique.Operating device for rolling shutter according to one of the preceding claims, characterized in that said screw (21) is obtained by machining a screw of the type used in an operating device for rolling shutter with mechanical winch. Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce que la liaison mécanique entre ladite vis et ladite roue dentée est ré-embrayable après avoir été débrayée.Operating device for rolling shutter according to one of the preceding claims, characterized in that the mechanical connection between said screw and said toothed wheel is re-engaging after being disengaged. Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en que que ledit moteur est un moteur électrique (4) ou un treuil mécanique.Operating device for rolling shutter according to one of the preceding claims, characterized in that said motor is an electric motor (4) or a mechanical winch. Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un connecteur électrique tournant (133, 233) disposé entre ladite embase (107, 207) et une partie fixe (132, 232) du dispositif.Operating device for rolling shutter according to one of the preceding claims, characterized in that it comprises a rotary electrical connector (133, 233) disposed between said base (107, 207) and a fixed part (132, 232) of the device . Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce qu'il comprend une liaison différentielle (237, 238) entre ladite roue dentée (219) et ladite embase (207).Operating device for rolling shutter according to one of the preceding claims, characterized in that it comprises a differential connection (237, 238) between said toothed wheel (219) and said base (207). Dispositif de manoeuvre pour volet roulant selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un dispositif de fin de course (106) supporté par une partie fixe (132) par rapport à laquelle ladite embase (107) est susceptible d'avoir un mouvement de rotation.Operating device for rolling shutter according to one of the preceding claims, characterized in that it comprises a limit switch device (106) supported by a fixed part (132) relative to which said base (107) is capable of '' have a rotational movement.
EP97420024A 1996-02-14 1997-02-13 Roller shutter operating device Withdrawn EP0790385A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9602085 1996-02-14
FR9602085A FR2744759B1 (en) 1996-02-14 1996-02-14 HANDLING DEVICE FOR ROLLING SHUTTER

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EP0790385A1 true EP0790385A1 (en) 1997-08-20

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EP2820226A1 (en) * 2012-02-27 2015-01-07 Hunter Douglas Industries B.V. Architectural covering having a drive mechanism
EP2820226B1 (en) * 2012-02-27 2022-04-13 Hunter Douglas Industries B.V. Architectural covering having a drive mechanism
EP3002406A1 (en) * 2014-10-03 2016-04-06 RISTEMA S.r.l.s. Device for assisted lifting of a rolling shutter, rolling shutter assembly provided with said device and delivery kit for making it

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FR2744759A1 (en) 1997-08-14
US5711360A (en) 1998-01-27
FR2744759B1 (en) 1998-04-17

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