WO2019162380A1 - System for driving a winding member in rotation - Google Patents

System for driving a winding member in rotation Download PDF

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Publication number
WO2019162380A1
WO2019162380A1 PCT/EP2019/054319 EP2019054319W WO2019162380A1 WO 2019162380 A1 WO2019162380 A1 WO 2019162380A1 EP 2019054319 W EP2019054319 W EP 2019054319W WO 2019162380 A1 WO2019162380 A1 WO 2019162380A1
Authority
WO
WIPO (PCT)
Prior art keywords
main shaft
rotation
drive system
translation
movable
Prior art date
Application number
PCT/EP2019/054319
Other languages
French (fr)
Inventor
Arnaud Marcassoli
Sébastien Brogly
Original Assignee
Zurfluh Feller
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 Zurfluh Feller filed Critical Zurfluh Feller
Priority to EP19706981.8A priority Critical patent/EP3755864B1/en
Priority to ES19706981T priority patent/ES2926823T3/en
Publication of WO2019162380A1 publication Critical patent/WO2019162380A1/en

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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

  • the present invention relates to a drive system in rotation of a winding member of a closure screen apron rollable around a central axis.
  • a shutter or a roll-up door comprises a winding member, such as a winding tube, on which is fixed a flexible apron, such as an apron formed by blades hinged together.
  • An electric motor drives the drum in rotation to open or close the shutter or door.
  • JPH 1 1 101077 also discloses a drive system consisting of a torsion spring connected in parallel with a motor, the spring and the motor acting at the same time directly on the winding tube.
  • CSI Integrated Rescue Control
  • the invention intends to remedy by proposing a new drive system in which the winding of the deck is obtained faster and more efficiently compared to known systems.
  • the invention relates to a system for driving in rotation a winding member of a closure screen apron rollable around a central axis, the drive system comprising:
  • a rotatable element movable in rotation and fixed in translation relative to the main shaft, and integral in rotation with the winding member, this element being equipped with first coupling means in rotation,
  • first elastic means which, by default, push the movable member into an engaged configuration, in which the rotational coupling means cooperate so as to make the main shaft and the rotary element integral in rotation
  • control connected to the movable member in translation and adapted to move the movable member in translation towards a disengaged configuration, in which the means for coupling in rotation are spaced apart from one another so as to disengage in rotation the main shaft and the rotary element,
  • second elastic means adapted to drive the rotating element around the central axis in such a way that the apron is driven towards a wound configuration.
  • This system is characterized in that the second elastic means drive the rotating element around the central axis so that the apron is driven to a wound configuration only in disengaged configuration, and are interposed in series between the shaft main and rotary element.
  • the lift of the deck is permitted by the simple translation of a cable.
  • the energy of the prestressed spring is released directly after disengagement of the coupling means, which causes an automatic rewinding of the shutter.
  • the system is fast: the rise time of the deck is very short compared to other systems, including the CSI.
  • the system is also autonomous: no additional instrument (TO, crank, etc.) is needed.
  • the problems of saccades often encountered do not exist in this system since the spring is mounted in series: the motor rotates the spring which rotates the tube. Since the spring is solicited only after activation of the automatic winding process, the invention ensures normal operation of the roller shutter out of emergency.
  • the winding is fluid and regular.
  • such a drive system may incorporate one or more of the following features, taken in any technically permissible combination:
  • the second elastic means are adapted to be prestressed by a relative rotation between the main shaft and the rotary member.
  • the second elastic means are formed by at least one torsion spring fixed at one of its ends to the main shaft, and at its other end, to the rotary member.
  • the second resilient means are formed by a plurality of torsion springs arranged in series or in parallel.
  • the main shaft has a circular section and the rotary member has a central receiving hole of the main shaft, the orifice having a circular section.
  • the system comprises an intermediate piece mounted integral in translation and rotation of the main shaft, and free in translation relative to the movable member in translation.
  • the main shaft has a non-circular section
  • the movable member in translation has the same profile as that of the main shaft
  • the drive system does not comprise an intermediate piece between the main shaft and the body mobile in translation.
  • the first and second rotation coupling means are formed by complementary shapes, such as teeth or splines, provided on the movable member in translation and on the rotary member.
  • the first and second rotational coupling means are formed by a friction clutch system.
  • the rotating element is connected to a winding tube of the deck, forming the winding member.
  • FIG. 1 shows a schematic view of a drive system according to the invention in an engaged configuration
  • FIG. 2 shows a schematic view of the drive system of Figure 1 in a disengaged configuration
  • FIG. 3 is an exploded perspective view of the drive system of Figures 1 and 2.
  • FIGS. 1 to 3 show a drive system 1 comprising an actuator 3 having an output shaft 5.
  • the output shaft 5 defines a central axis X of the drive system 1.
  • the actuator 3 may be an electric motor, a winch, etc.
  • the output shaft 5 is connected to a main shaft 7 of the drive system 1, so that the main shaft 7 is rotatably connected to the output shaft 5.
  • an intermediate part 6 can ensure the connection between the output shaft 5 and the main shaft 7 so as to facilitate the adaptation of the main shaft 7 on all types of actuators 3.
  • the drive system 1 comprises a rotary element 9 pivotally connected to the main shaft 7.
  • the rotary element 9 is fixed axially on the main shaft 7.
  • This translation attachment is provided by a part 10 fixed on the main shaft 7 and which prevents the axial translation of the rotary element 9 in the direction of the actuator 3.
  • the main shaft 7 has a circular section
  • the rotary member 9 has a central opening 90 for receiving the main shaft 7, this orifice 90 having a circular section corresponding to that of the main shaft 7 .
  • the main shaft 7 has a profile that does not allow to have a direct pivot connection (that is to say a mounting of the rotary member 9 directly on the main shaft 7) then a intermediate piece may be provided between the main shaft 7 and the rotary member 9. This may be the case if the main shaft 7 has a non-circular section, with sharp edges or irregularities.
  • the main shaft 7 may in particular be square, hexagonal, etc.
  • the rotating element 9 is rotationally integral with a winding member of a roll-up closure screen apron.
  • the rotary element 9 is connected to a winding tube 1 1 forming the winding member, around which are wound blades apron.
  • the winding tube 1 1 is formed by a hollow cylinder centered on the central axis X is in which are mounted the actuator 3, the output shaft 5, the connecting piece 6, the main shaft 7 and the Rotating element 9.
  • the winding tube 1 1 is rotatably mounted on two lateral flanges 12a and 12b, mounted in a support such as a wall, and which also support the drive system 1.
  • the rotary element 9 in the case of blinds "BSO" can be connected to a bead that generates the stack of the blades, or to an axis that winds the bead.
  • the drive system 1 comprises a member 13 movable in translation on the main shaft 7 and relative to the rotary member 9.
  • the member 13 is integral in rotation with the main shaft 7.
  • the main shaft 7 having a circular profile making the joining in rotation by direct mounting impossible, the drive system 1 comprises an intermediate piece 15 provided between the main shaft 7 and the member 13.
  • the intermediate part 15 transmits the rotational movements of the actuator 3 to the member 13 while leaving the possibility of translation along the axis X.
  • the intermediate part 15 has a circular inner section in which is received the main shaft 7.
  • the intermediate part 15 is secured in rotation to the main shaft 7 by a bolt 17 (this function can also be performed by a pin, or any other known means).
  • the intermediate piece 15 has an outer profile 150 non-circular, hexagonal in this example, complementary to a hexagonal profile 130 provided on the inside of the member 13.
  • the drive system may not include an intermediate part 15 and the member 13 may adopt the same profile as that of the main shaft 7.
  • the rotary element 9 and the member 13 have disengageable connection means which enable them to engage or disengage according to the axial position of the member 13.
  • the rotary element 9 is equipped with first coupling means in rotation 92, and the member 13 comprises second rotational coupling means 132.
  • the rotational coupling means 92 and 132 are formed by complementary shapes, such as teeth or splines. In this example, the shapes are circumferentially alternating protuberances and recesses forming, in coupled configuration, rotational stops. Any other form can be considered.
  • the first and second rotational coupling means may be formed by a friction clutch system.
  • the coupling means 92 are engaged with the coupling means 132, causing rotational engagement of the member 13 with the rotary member 9.
  • the coupling means 92 are in a second remote position and are no longer in engagement with the coupling means 132, causing the member 13 to disengage in rotation with the rotary member 9.
  • the member 13 has been translated along the X axis opposite the rotating element 9 between a first close position and a second remote position.
  • the drive system 1 comprises elastic means that push the member 13 by default in the engaged configuration. These elastic means are formed by a compression spring 19 interposed between the member 13 and a flange 152 of the intermediate piece 15.
  • the drive system 1 also comprises a control connected to the member 13, and adapted to move the member 13 towards its disengaged configuration, against the force of the spring 19.
  • this command may be provided in the form of a cable 21 actuable by a user, and connected to the member 13 by a connecting piece 23. When the cable 21 is pulled, the member 13 is spaced from the rotary member 9, which l leads to its disengaged configuration.
  • the drive system 1 also comprises second elastic means which drive the rotating element 9 in rotation around the central axis X so that the apron is driven to a wound configuration.
  • These second elastic means are intended to provide a return torque on the apron to its wound position in case of emergency if the actuator 3 is inoperative.
  • the second elastic means are interposed between the main shaft 7 and the rotary member 9. In other words, these elastic means are arranged in series between the actuator 3 and the winding tube 1 1.
  • the actuator 3 drives the main shaft 7, which drives the elastic means, which drive the rotary member 9, which drives the winding tube 1 1.
  • the second elastic means are able to be prestressed by relative rotation between the main shaft 7 and the rotary element 9.
  • the second resilient means can not generate a relative rotation of the main shaft 7 and the rotary member 9, but when a rotation between the main shaft 7 and the element rotary 9 is applied, the second elastic means are in a stressed state. In this state, they undergo an internal stress which tends to exert a relative rotation between the main shaft 7 and the rotating element 9 relative to each other, so that the deck is raised.
  • the second resilient means is formed by a torsion spring 25 having a first end 250 attached to the main shaft 7, and a second other end 252 attached to the rotary member 9.
  • the first end 250 is attached to the main shaft 7 by a bolt 27.
  • the second end 252 is fixed to the rotary member 9 by a screw 29.
  • the operation of the drive system 1 is as follows. In normal operating configuration, the rotary element 9 and the member 13 are in the engaged configuration. The torque generated by the actuator 3 is transmitted to the main shaft 7 which transmits it to the member 13 and then finally passes from the member 13 to the rotary member 9 through the disengageable connection means 92 and 132. torque of the actuator 3 is found at the rotating element 9.
  • the torsion spring 25 previously prestressed keeps under tension the rotary element 9 which, once released will be rotated, then will cause the winding tube 1 1. But as long as the member 13 and the rotating member 9 are engaged, the torsion spring 25 can not release its energy.
  • the spring 19 pushes the member 13 against the rotary element 9 so that the disengageable connection means mate again.
  • the two ends 250 and 252 of the torsion spring 25 are fixed relative to the main shaft 7, the rotary member 9 can be set in motion by the actuator 3. The configuration is found engaged.
  • the drive system 1 has the advantage of being resettable and reusable. Indeed when the clutch control is triggered, the drive system 1 is in the disengaged configuration and the torsion spring 25 releases its energy. Before releasing the cable 21 and back in the engaged configuration to regain normal operation, it is still possible to manually rotate the rotating member 9, for example by manipulating the winding tube 1 1 or any other axis connected to the element rotary 9, or even by actuating the main shaft 7 (by the actuator 3, by a winch, among others) since the deck is then locked in the raised position due to its emergency winding.
  • the actuator 3 may be a motor of considerable length, and may not be maintained in the central axis X of the winding tube 1 1 under the effect of its own weight. Fixed only at the cheek 12a and at the rotating member 9, the actuator 3 will flex in the winding tube 1 1 at the risk of touching it.
  • the drive system 1 may therefore comprise a support piece 31 mounted in the winding tube January 1 and mounted on the main shaft 7 or on the connecting piece 6 closest to the output shaft 5 of the Actuator 3. The position of the main shaft 7 with respect to the winding tube 11 is thus maintained. In this way, the actuator 3 is supported by two supports to be kept aligned with the central axis X.
  • the second elastic means may be formed not by a single spring 25 but by a plurality of elastic elements, including springs.
  • springs For example, several coaxial springs arranged in series or in parallel can be used.
  • the springs will be arranged coaxially, each spring exerting a torque on the next, the latter being connected to the rotary member 9 to transmit the overall torque of the spring series.
  • the springs In the case of a parallel arrangement, the springs will be arranged coaxially, each spring exerting its torque on the rotating element.

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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)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

This system (1) for driving a winding member (11) of a shutter apron that is windable about a central axis (X) in rotation comprises an actuator (3) that drives an output shaft (5), a main shaft (7) driven by the output shaft (5), a rotary element (9) that is rotatable and fixed in translation with respect to the main shaft (7), and rotates as one with the winding member (11), this element being equipped with first rotational coupling means (92), a member (13) that is movable in translation along the central axis (X) with respect to the rotary element (9), rotates as one with the main shaft (7) and has second rotational coupling means (132), first elastic means (19) that push the movable member (13) back by default into an engaged position, wherein the rotational coupling means (92, 132) cooperate so as to make the main shaft (7) and the rotary element (9) rotate as one, a controller (21) that is connected to the member (13) movable in translation and is designed to move the member (13) movable in translation into a disengaged configuration, wherein the rotational coupling means (92, 132) are separated from one another so as to rotationally disconnect the main shaft (7) and the rotary element (9), and second elastic means (25) that are designed to drive the rotary element (9) in rotation about the central axis (X) such that the apron is driven into a wound configuration. The second elastic means (25) drive the rotary element (9) in rotation about the central axis (X) such that the apron is driven into a wound configuration only in the disengaged configuration, and are interposed in series between the main shaft (7) and the rotary element (9).

Description

Système d’entrainement en rotation d’un organe d’enroulement  Rotational drive system of a winding member
La présente invention concerne un système d’entrainement en rotation d’un organe d’enroulement d’un tablier d’écran de fermeture enroulable autour d’un axe central. The present invention relates to a drive system in rotation of a winding member of a closure screen apron rollable around a central axis.
De manière classique, un volet ou une porte enroulable comprend un organe d’enroulement, tel qu’un tube d’enroulement, sur lequel est fixé un tablier souple, tel qu'un tablier formé par des lames articulées entre elles. Un moteur électrique entraîne le tambour en rotation pour ouvrir ou fermer le volet ou la porte.  Conventionally, a shutter or a roll-up door comprises a winding member, such as a winding tube, on which is fixed a flexible apron, such as an apron formed by blades hinged together. An electric motor drives the drum in rotation to open or close the shutter or door.
Les normes en vigueur imposent de prévoir la possibilité de manoeuvrer le tablier en cas de panne électrique.  The standards in force require to provide the possibility of operating the deck in case of power failure.
La plupart des systèmes d’entraînement actuels sont composés d’un ressort de torsion monté en parallèle avec le moteur, le ressort et le moteur agissant en même temps directement sur le tube d’enroulement. De tels systèmes sont notamment décrits dans FR 3 004 745 et EP 0 751 278. Ces systèmes permettent de débrayer le moteur, c’est-à-dire briser la liaison entre le moteur et le tube d’enroulement, ce qui fait basculer sur un fonctionnement en tirage direct (le ressort agissant uniquement sur le tube d’enroulement).  Most current drive systems consist of a torsion spring connected in parallel with the motor, the spring and the motor acting at the same time directly on the winding tube. Such systems are described in particular in FR 3,004,745 and EP 0 751 278. These systems make it possible to disengage the motor, that is to say to break the connection between the motor and the winding tube, which makes it possible to switch on direct draw operation (the spring acting only on the winding tube).
JPH 1 1 101077 décrit également un système d’entraînement composé d’un ressort de torsion monté en parallèle avec un moteur, le ressort et le moteur agissant en même temps directement sur le tube d’enroulement.  JPH 1 1 101077 also discloses a drive system consisting of a torsion spring connected in parallel with a motor, the spring and the motor acting at the same time directly on the winding tube.
Le fait d’utiliser un ressort en parallèle du moteur peut générer dans certains cas un problème de saccades lors du fonctionnement normal : à cause du ressort qui passe d’un état de détente à un état de compression, le moteur doit fonctionner de deux manières différentes durant la phase d’enroulement et de déroulement du tablier (mode freinage et mode moteur). Lorsque le moteur passe d’un mode de fonctionnement à l’autre, on observe l’apparition de saccades/perturbations au niveau du tablier ; l’enroulement n’est pas fluide, ce qui n’est pas satisfaisant d’un point de vue esthétique, mais aussi technique, les pièces (moteur et transmission) étant trop sollicitées.  The fact of using a spring in parallel with the motor can generate in some cases a jerk problem during normal operation: because of the spring which passes from a state of relaxation to a state of compression, the motor must work in two ways different during the winding and unwinding phase of the apron (braking mode and motor mode). When the motor switches from one operating mode to another, we observe the appearance of jerks / disturbances in the deck; the winding is not fluid, which is not satisfactory from an aesthetic point of view, but also technical, the parts (motor and transmission) being too stressed.
D’autres systèmes offrent la possibilité de basculer d’un système d’entrainement motorisé (avec un moteur tubulaire) à un système d’entrainement manuel (avec un treuil).  Other systems offer the possibility of switching from a motorized drive system (with a tubular motor) to a manual drive system (with a winch).
Il existe aussi des moteur « CSI » pour Commande de Secours Intégrée, c’est-à- dire intégrant un treuil manuel qui permet de mettre en mouvement le rotor du moteur.  There is also a "CSI" engine for Integrated Rescue Control, that is to say integrating a manual winch that makes it possible to set the rotor of the motor in motion.
Les temps de manipulation de ces systèmes sont trop longs : les treuils ont de grands rapports de réduction, il prend donc trop de temps pour remonter suffisamment le tablier en cas d’urgence. La manoeuvre manuelle rend la tâche plus difficile par rapport à un système automatique. Il faut aussi retrouver la Tringle Oscillante (TO) pour activer le treuil, et celle-ci est rarement correctement rangée par l’utilisateur. The handling times of these systems are too long: the winches have large reduction ratios, so it takes too much time to raise the deck sufficiently in case of emergency. The manual maneuver makes the task more difficult compared to an automatic system. It is also necessary to find the Oscillating Rod (TO) to activate the winch, and it is rarely properly stored by the user.
C’est à ces inconvénients qu’entend remédier l’invention en proposant un nouveau système d’entraînement dans lequel l’enroulement du tablier est obtenu de façon plus rapide et performante par rapport aux systèmes connus.  It is these drawbacks that the invention intends to remedy by proposing a new drive system in which the winding of the deck is obtained faster and more efficiently compared to known systems.
A cet effet, l’invention concerne un système d’entrainement en rotation d’un organe d’enroulement d’un tablier d’écran de fermeture enroulable autour d’un axe central, le système d’entrainement comprenant :  To this end, the invention relates to a system for driving in rotation a winding member of a closure screen apron rollable around a central axis, the drive system comprising:
- un actionneur entraînant un arbre de sortie,  an actuator driving an output shaft,
- un arbre principal entraîné par l’arbre de sortie,  a main shaft driven by the output shaft,
- un élément rotatif mobile en rotation et fixe en translation par rapport à l’arbre principal, et solidaire en rotation de l’organe d’enroulement, cet élément étant équipé de premiers moyens d’accouplement en rotation,  a rotatable element movable in rotation and fixed in translation relative to the main shaft, and integral in rotation with the winding member, this element being equipped with first coupling means in rotation,
- un organe mobile en translation suivant l’axe central par rapport à l’élément rotatif, solidaire en rotation de l’arbre principal et comportant des seconds moyens d’accouplement en rotation,  a member movable in translation along the central axis with respect to the rotary element, integral in rotation with the main shaft and comprising second coupling means in rotation,
- des premiers moyens élastiques qui repoussent par défaut l’organe mobile dans une configuration embrayée, dans laquelle les moyens d’accouplement en rotation coopèrent de manière à rendre solidaires en rotation l’arbre principal et l’élément rotatif, first elastic means which, by default, push the movable member into an engaged configuration, in which the rotational coupling means cooperate so as to make the main shaft and the rotary element integral in rotation,
- une commande reliée à l’organe mobile en translation et adaptée pour déplacer l’organe mobile en translation vers une configuration débrayée, dans laquelle les moyens d’accouplement en rotation sont éloignés l’un de l’autre de manière à désolidariser en rotation l’arbre principal et l’élément rotatif, a control connected to the movable member in translation and adapted to move the movable member in translation towards a disengaged configuration, in which the means for coupling in rotation are spaced apart from one another so as to disengage in rotation the main shaft and the rotary element,
- des seconds moyens élastiques adaptés pour entraîner l’élément rotatif en rotation autour de l’axe central de telle manière que le tablier soit entraîné vers une configuration enroulée.  second elastic means adapted to drive the rotating element around the central axis in such a way that the apron is driven towards a wound configuration.
Ce système est caractérisé en ce que les seconds moyens élastiques entraînent l’élément rotatif en rotation autour de l’axe central de telle manière que le tablier soit entraîné vers une configuration enroulée uniquement en configuration débrayée, et sont interposés en série entre l’arbre principal et l’élément rotatif.  This system is characterized in that the second elastic means drive the rotating element around the central axis so that the apron is driven to a wound configuration only in disengaged configuration, and are interposed in series between the shaft main and rotary element.
Grâce à l’invention, la remontée du tablier est permise par la simple translation d’un câble. L’énergie du ressort précontraint est directement libérée après le débrayage des moyens d’accouplement, ce qui provoque un ré-enroulement automatique du volet roulant. Le système est rapide : le temps de remontée du tablier est très court comparé aux autres systèmes, notamment le CSI. Le système est également autonome : aucun instrument supplémentaire (TO, manivelle, etc.) n’est nécessaire. Les problèmes de saccades souvent rencontrés n’existent pas dans ce système puisque le ressort est monté en série : le moteur fait tourner le ressort qui fait tourner le tube. Étant donné que le ressort n’est sollicité qu’après activation du processus d’enroulement automatique, l’invention assure un fonctionnement normal du volet roulant hors situation d’urgence. L’enroulement est fluide et régulier. Thanks to the invention, the lift of the deck is permitted by the simple translation of a cable. The energy of the prestressed spring is released directly after disengagement of the coupling means, which causes an automatic rewinding of the shutter. The system is fast: the rise time of the deck is very short compared to other systems, including the CSI. The system is also autonomous: no additional instrument (TO, crank, etc.) is needed. The problems of saccades often encountered do not exist in this system since the spring is mounted in series: the motor rotates the spring which rotates the tube. Since the spring is solicited only after activation of the automatic winding process, the invention ensures normal operation of the roller shutter out of emergency. The winding is fluid and regular.
Selon des aspects avantageux mais non obligatoires de l’invention, un tel système d’entrainement peut incorporer une ou plusieurs des caractéristiques suivantes, prises dans toutes combinaisons techniquement admissibles :  According to advantageous but non-obligatory aspects of the invention, such a drive system may incorporate one or more of the following features, taken in any technically permissible combination:
- En configuration débrayée de l’organe mobile en translation, les seconds moyens élastiques sont aptes à être précontraints par une rotation relative entre l’arbre principal et l’élément rotatif.  - In the disengaged configuration of the movable member in translation, the second elastic means are adapted to be prestressed by a relative rotation between the main shaft and the rotary member.
- Les seconds moyens élastiques sont formés par au moins un ressort de torsion fixé à l’une de ses extrémités à l’arbre principal, et à son autre extrémité, à l’élément rotatif.  - The second elastic means are formed by at least one torsion spring fixed at one of its ends to the main shaft, and at its other end, to the rotary member.
- Les seconds moyens élastiques sont formés par plusieurs ressorts de torsion disposés en série ou en parallèle.  - The second resilient means are formed by a plurality of torsion springs arranged in series or in parallel.
- L’arbre principal a une section circulaire et l’élément rotatif présente un orifice central de réception de l’arbre principal, cet orifice ayant une section circulaire.  - The main shaft has a circular section and the rotary member has a central receiving hole of the main shaft, the orifice having a circular section.
- Le système comporte une pièce intermédiaire montée solidaire en translation et rotation de l’arbre principal, et libre en translation par rapport à l’organe mobile en translation.  - The system comprises an intermediate piece mounted integral in translation and rotation of the main shaft, and free in translation relative to the movable member in translation.
- L’arbre principal présente une section non circulaire, l’organe mobile en translation présente le même profil que celui de l’arbre principal, et le système d’entraînement ne comprend pas de pièce intermédiaire entre l’arbre principal et l’organe mobile en translation.  - The main shaft has a non-circular section, the movable member in translation has the same profile as that of the main shaft, and the drive system does not comprise an intermediate piece between the main shaft and the body mobile in translation.
- Les premier et second moyens d’accouplement en rotation sont formés par des formes complémentaires, telles que des dentures ou des cannelures, prévues sur l’organe mobile en translation et sur l’élément rotatif.  - The first and second rotation coupling means are formed by complementary shapes, such as teeth or splines, provided on the movable member in translation and on the rotary member.
- Les premier et second moyens d’accouplement en rotation sont formés par un système d’embrayage à friction.  - The first and second rotational coupling means are formed by a friction clutch system.
- L’élément rotatif est relié à un tube d’enroulement du tablier, formant l’organe d’enroulement.  - The rotating element is connected to a winding tube of the deck, forming the winding member.
- L’élément rotatif est relié à un cordon supportant des lames formant le tablier, ce cordon formant l’organe d’enroulement. L’invention sera mieux comprise et d’autres avantages de celle-ci apparaîtront plus clairement dans la description qui va suivre d’un système d’entrainement conforme à son principe, faite à titre d’exemple non limitatif en référence aux dessins annexés dans lesquels : - The rotating element is connected to a cord supporting blades forming the deck, this cord forming the winding member. The invention will be better understood and other advantages thereof will appear more clearly in the following description of a drive system according to its principle, given by way of non-limiting example with reference to the accompanying drawings in which :
- la figure 1 représente en vue schématique un système d’entrainement conforme à l’invention dans une configuration embrayée ;  - Figure 1 shows a schematic view of a drive system according to the invention in an engaged configuration;
- la figure 2 représente en vue schématique le système d’entrainement de la figure 1 dans une configuration débrayée ;  - Figure 2 shows a schematic view of the drive system of Figure 1 in a disengaged configuration;
- la figure 3 est une vue en perspective éclatée du système d’entrainement des figures 1 et 2.  - Figure 3 is an exploded perspective view of the drive system of Figures 1 and 2.
Les figures 1 à 3 représentent un système d’entrainement 1 comprenant un actionneur 3 ayant un arbre de sortie 5. L’arbre de sortie 5 définit un axe central X du système d’entrainement 1 . Par exemple, le l’actionneur 3 peut être un moteur électrique, un treuil, etc.  FIGS. 1 to 3 show a drive system 1 comprising an actuator 3 having an output shaft 5. The output shaft 5 defines a central axis X of the drive system 1. For example, the actuator 3 may be an electric motor, a winch, etc.
L’arbre de sortie 5 est relié à un arbre principal 7 du système d’entraînement 1 , de telle manière que l’arbre principal 7 est solidaire en rotation de l’arbre de sortie 5. Selon un aspect optionnel, une pièce intermédiaire 6 peut assurer la liaison entre l’arbre de sortie 5 et l’arbre principal 7 de manière à faciliter l’adaptation de l’arbre principal 7 sur tous types d’actionneurs 3.  The output shaft 5 is connected to a main shaft 7 of the drive system 1, so that the main shaft 7 is rotatably connected to the output shaft 5. According to an optional aspect, an intermediate part 6 can ensure the connection between the output shaft 5 and the main shaft 7 so as to facilitate the adaptation of the main shaft 7 on all types of actuators 3.
Le système d’entraînement 1 comprend un élément rotatif 9 en liaison pivot avec l’arbre principal 7. L’élément rotatif 9 est fixe axialement sur l’arbre principal 7. Cette fixation en translation est assurée par une pièce 10 fixée sur l’arbre principal 7 et qui empêche la translation axiale de l’élément rotatif 9 en direction de l’actionneur 3.  The drive system 1 comprises a rotary element 9 pivotally connected to the main shaft 7. The rotary element 9 is fixed axially on the main shaft 7. This translation attachment is provided by a part 10 fixed on the main shaft 7 and which prevents the axial translation of the rotary element 9 in the direction of the actuator 3.
Dans cet exemple, l’arbre principal 7 a une section circulaire, et l’élément rotatif 9 présente un orifice central 90 de réception de l’arbre principal 7, cet orifice 90 ayant une section circulaire correspondant à celle de l’arbre principal 7.  In this example, the main shaft 7 has a circular section, and the rotary member 9 has a central opening 90 for receiving the main shaft 7, this orifice 90 having a circular section corresponding to that of the main shaft 7 .
En variante non représentée, si l’arbre principal 7 présente un profil ne permettant pas d’avoir une liaison pivot directe (c’est-à-dire un montage de l’élément rotatif 9 directement sur l’arbre principal 7) alors une pièce intermédiaire peut être prévue entre l’arbre principal 7 et l’élément rotatif 9. Cela peut être le cas si l’arbre principal 7 présente une section non circulaire, avec des arêtes vives ou des irrégularités. L'arbre principal 7 peut être notamment de profil carré, hexagonal, etc.  In variant not shown, if the main shaft 7 has a profile that does not allow to have a direct pivot connection (that is to say a mounting of the rotary member 9 directly on the main shaft 7) then a intermediate piece may be provided between the main shaft 7 and the rotary member 9. This may be the case if the main shaft 7 has a non-circular section, with sharp edges or irregularities. The main shaft 7 may in particular be square, hexagonal, etc.
L’élément rotatif 9 est solidaire en rotation d’un organe d’enroulement d’un tablier d’écran de fermeture enroulable. Dans le cas d’un volet roulant, l’élément rotatif 9 est relié à un tube d’enroulement 1 1 formant l’organe d’enroulement, autour duquel viennent s’enrouler des lames du tablier. Le tube d’enroulement 1 1 est formé par un cylindre creux centré sur l’axe central X est dans lequel sont montés l’actionneur 3, l’arbre de sortie 5, la pièce de liaison 6, l’arbre principal 7 et l’élément rotatif 9. Généralement, le tube d’enroulement 1 1 est monté libre en rotation sur deux joues latérales 12a et 12b, montées dans un support tel qu’un mur, et qui assurent également le support du système d’entrainement 1. The rotating element 9 is rotationally integral with a winding member of a roll-up closure screen apron. In the case of a shutter, the rotary element 9 is connected to a winding tube 1 1 forming the winding member, around which are wound blades apron. The winding tube 1 1 is formed by a hollow cylinder centered on the central axis X is in which are mounted the actuator 3, the output shaft 5, the connecting piece 6, the main shaft 7 and the Rotating element 9. Generally, the winding tube 1 1 is rotatably mounted on two lateral flanges 12a and 12b, mounted in a support such as a wall, and which also support the drive system 1.
En variante non représentée, dans le cas des stores « BSO » l’élément rotatif 9 peut être relié à un cordon qui génère l'empilement des lames, ou bien à un axe qui enroule ce cordon.  In a variant that is not shown, in the case of blinds "BSO" the rotary element 9 can be connected to a bead that generates the stack of the blades, or to an axis that winds the bead.
Le système d’entraînement 1 comprend un organe 13 mobile en translation sur l’arbre principal 7 et par rapport à l’élément rotatif 9. L’organe 13 est solidaire en rotation de l’arbre principal 7. L’arbre principal 7 ayant un profil circulaire rendant la solidarisation en rotation par montage direct impossible, le système d’entraînement 1 comprend une pièce intermédiaire 15 prévue entre l’arbre principal 7 et l’organe 13. La pièce intermédiaire 15 transmet les mouvements de rotation de l’actionneur 3 à l’organe 13 en lui laissant la possibilité de translation selon l’axe X. Comme cela est visible sur la figure 3, la pièce intermédiaire 15 présente une section intérieure circulaire dans laquelle est reçu l’arbre principal 7. La pièce intermédiaire 15 est solidarisée en rotation à l’arbre principal 7 par un boulon 17 (cette fonction peut également être réalisée par une goupille, ou tout autre moyen connu). La pièce intermédiaire 15 présente un profil externe 150 non circulaire, hexagonal dans cet exemple, complémentaire d’un profil hexagonal 130 prévu sur l’intérieur de l’organe 13. Ainsi, la rotation de la pièce intermédiaire 15 est transmise à l’organe 13, tout en permettant la translation relative de ces deux pièces.  The drive system 1 comprises a member 13 movable in translation on the main shaft 7 and relative to the rotary member 9. The member 13 is integral in rotation with the main shaft 7. The main shaft 7 having a circular profile making the joining in rotation by direct mounting impossible, the drive system 1 comprises an intermediate piece 15 provided between the main shaft 7 and the member 13. The intermediate part 15 transmits the rotational movements of the actuator 3 to the member 13 while leaving the possibility of translation along the axis X. As can be seen in Figure 3, the intermediate part 15 has a circular inner section in which is received the main shaft 7. The intermediate part 15 is secured in rotation to the main shaft 7 by a bolt 17 (this function can also be performed by a pin, or any other known means). The intermediate piece 15 has an outer profile 150 non-circular, hexagonal in this example, complementary to a hexagonal profile 130 provided on the inside of the member 13. Thus, the rotation of the intermediate piece 15 is transmitted to the organ 13, while allowing the relative translation of these two parts.
En variante non représentée, si l’arbre principal 7 présente une section non circulaire, le système d’entraînement peut ne pas comprendre de pièce intermédiaire 15 et l’organe 13 peut adopter le même profil que celui de l’arbre principal 7.  Alternatively not shown, if the main shaft 7 has a non-circular section, the drive system may not include an intermediate part 15 and the member 13 may adopt the same profile as that of the main shaft 7.
L’élément rotatif 9 et l’organe 13 possèdent des moyens de liaison débrayables qui leur permettent de s’embrayer ou de se débrayer suivant la position axiale de l’organe 13. L’élément rotatif 9 est équipé de premiers moyens d’accouplement en rotation 92, et l’organe 13 comporte des seconds moyens d’accouplement en rotation 132. Les moyens d’accouplement en rotation 92 et 132 sont formés par des formes complémentaires, telles que des dentures ou des cannelures. Dans cet exemple, les formes sont des reliefs en saillie et en creux alternés circonférentiellement formant, en configuration accouplée, des arrêts en rotation. Toute autre forme peut être envisagée. Selon une variante non représentée, les premiers et seconds moyens d’accouplement en rotation peuvent être formés par un système d’embrayage à friction. The rotary element 9 and the member 13 have disengageable connection means which enable them to engage or disengage according to the axial position of the member 13. The rotary element 9 is equipped with first coupling means in rotation 92, and the member 13 comprises second rotational coupling means 132. The rotational coupling means 92 and 132 are formed by complementary shapes, such as teeth or splines. In this example, the shapes are circumferentially alternating protuberances and recesses forming, in coupled configuration, rotational stops. Any other form can be considered. According to a variant not shown, the first and second rotational coupling means may be formed by a friction clutch system.
Dans une configuration embrayée représentée à la figure 1 , les moyens d’accouplement 92 sont en prise avec les moyens d’accouplement 132, provoquant une solidarisation en rotation de l’organe 13 avec l’élément rotatif 9. Dans une configuration débrayée représentée à la figure 2, les moyens d’accouplement 92 sont dans une seconde position éloignée et ne sont plus en prise avec les moyens d’accouplement 132, provoquant une désolidarisation en rotation de l’organe 13 avec l’élément rotatif 9. Entre la configuration embrayée et la configuration débrayée, l’organe 13 a subi une translation selon l’axe X à l’opposé de l’élément rotatif 9 entre une première position rapprochée et une seconde position éloignée.  In an engaged configuration shown in Figure 1, the coupling means 92 are engaged with the coupling means 132, causing rotational engagement of the member 13 with the rotary member 9. In a disengaged configuration shown in FIG. 2, the coupling means 92 are in a second remote position and are no longer in engagement with the coupling means 132, causing the member 13 to disengage in rotation with the rotary member 9. Between the configuration engaged and the disengaged configuration, the member 13 has been translated along the X axis opposite the rotating element 9 between a first close position and a second remote position.
Le système d’entraînement 1 comprend des moyens élastiques qui repoussent par défaut l’organe 13 dans la configuration embrayée. Ces moyens élastiques sont formés par un ressort de compression 19, interposé entre l’organe 13 et une collerette 152 de la pièce intermédiaire 15.  The drive system 1 comprises elastic means that push the member 13 by default in the engaged configuration. These elastic means are formed by a compression spring 19 interposed between the member 13 and a flange 152 of the intermediate piece 15.
Le système d’entraînement 1 comprend également une commande reliée à l’organe 13, et adaptée pour déplacer l’organe 13 vers sa configuration débrayée, à l’encontre de l’effort du ressort 19. Par exemple, cette commande peut être prévue sous la forme d’un câble 21 actionnable par un utilisateur, et relié à l’organe 13 par une pièce de liaison 23. Lorsque le câble 21 est tiré, l’organe 13 est écarté de l’élément rotatif 9, ce qui l’entraîne vers sa configuration débrayée.  The drive system 1 also comprises a control connected to the member 13, and adapted to move the member 13 towards its disengaged configuration, against the force of the spring 19. For example, this command may be provided in the form of a cable 21 actuable by a user, and connected to the member 13 by a connecting piece 23. When the cable 21 is pulled, the member 13 is spaced from the rotary member 9, which l leads to its disengaged configuration.
Le système d’entraînement 1 comprend également des seconds moyens élastiques qui entraînent l’élément rotatif 9 en rotation autour de l’axe central X de telle manière que le tablier soit entraîné vers une configuration enroulée. Ces seconds moyens élastiques ont pour but de fournir un couple de rappel sur le tablier vers sa position enroulée en cas d’urgence si l’actionneur 3 est inopérant.  The drive system 1 also comprises second elastic means which drive the rotating element 9 in rotation around the central axis X so that the apron is driven to a wound configuration. These second elastic means are intended to provide a return torque on the apron to its wound position in case of emergency if the actuator 3 is inoperative.
Les seconds moyens élastiques sont interposés entre l’arbre principal 7 et l’élément rotatif 9. En d’autres termes, ces moyens élastiques sont disposés en série entre l’actionneur 3 et le tube d’enroulement 1 1. L’actionneur 3 entraîne l’arbre principal 7, qui entraîne les moyens élastiques, qui entraînent l’élément rotatif 9, qui entraîne le tube d’enroulement 1 1 .  The second elastic means are interposed between the main shaft 7 and the rotary member 9. In other words, these elastic means are arranged in series between the actuator 3 and the winding tube 1 1. The actuator 3 drives the main shaft 7, which drives the elastic means, which drive the rotary member 9, which drives the winding tube 1 1.
Pour obtenir une remontée du tablier, une précontrainte est appliquée aux seconds moyens élastiques, de manière que ceux-ci emmagasinent de l’énergie et puissent délivrer un couple suffisant pour remonter le tablier lorsque le besoin survient. En configuration débrayée de l’organe 13, les seconds moyens élastiques sont aptes à être précontraints par une rotation relative entre l’arbre principal 7 et l’élément rotatif 9. En d’autres termes, dans un état non sollicité, les seconds moyens élastiques ne peuvent générer une rotation relative de l’arbre principal 7 et de l’élément rotatif 9, mais lorsqu’une rotation entre l’arbre principal 7 et l’élément rotatif 9 est appliquée, les seconds moyens élastiques sont dans un état sollicité. Dans cet état, ils subissent une contrainte interne qui tend à exercer une rotation relative entre l’arbre principal 7 et l’élément rotatif 9 l’un par rapport à l’autre, de telle manière que le tablier soit relevé. To obtain a rise of the apron, a prestressing is applied to the second elastic means, so that they store energy and can deliver a sufficient torque to raise the deck when the need arises. In the disengaged configuration of the member 13, the second elastic means are able to be prestressed by relative rotation between the main shaft 7 and the rotary element 9. other words, in an unsolicited state, the second resilient means can not generate a relative rotation of the main shaft 7 and the rotary member 9, but when a rotation between the main shaft 7 and the element rotary 9 is applied, the second elastic means are in a stressed state. In this state, they undergo an internal stress which tends to exert a relative rotation between the main shaft 7 and the rotating element 9 relative to each other, so that the deck is raised.
Les seconds moyens élastiques sont formés par un ressort de torsion 25 comprenant une première extrémité 250 fixée à l’arbre principal 7, et une seconde autre extrémité 252 fixée à l’élément rotatif 9. Selon un exemple, la première extrémité 250 est fixée à l’arbre principal 7 par un boulon 27. Selon un exemple, la seconde extrémité 252 est fixée à l’élément rotatif 9 par une vis 29.  The second resilient means is formed by a torsion spring 25 having a first end 250 attached to the main shaft 7, and a second other end 252 attached to the rotary member 9. In one example, the first end 250 is attached to the main shaft 7 by a bolt 27. In one example, the second end 252 is fixed to the rotary member 9 by a screw 29.
Le fonctionnement du système d’entraînement 1 est le suivant. En configuration de fonctionnement normal, l’élément rotatif 9 et l’organe 13 sont en configuration embrayée. Le couple généré par l’actionneur 3 est transmis à l’arbre principal 7 qui le transmet à l’organe 13 puis finalement il passe de l’organe 13 à l’élément rotatif 9 grâce aux moyens de liaison débrayables 92 et 132. Le couple de l’actionneur 3 se retrouve au niveau de l’élément rotatif 9. Le ressort de torsion 25 préalablement précontraint maintient sous tension l’élément rotatif 9 qui, une fois libéré sera entraîné en rotation, puis entraînera le tube d'enroulement 1 1 . Mais tant que l’organe 13 et l’élément rotatif 9 sont embrayés, le ressort de torsion 25 ne peut pas libérer son énergie.  The operation of the drive system 1 is as follows. In normal operating configuration, the rotary element 9 and the member 13 are in the engaged configuration. The torque generated by the actuator 3 is transmitted to the main shaft 7 which transmits it to the member 13 and then finally passes from the member 13 to the rotary member 9 through the disengageable connection means 92 and 132. torque of the actuator 3 is found at the rotating element 9. The torsion spring 25 previously prestressed keeps under tension the rotary element 9 which, once released will be rotated, then will cause the winding tube 1 1. But as long as the member 13 and the rotating member 9 are engaged, the torsion spring 25 can not release its energy.
Lorsque l'on actionne le câble 21 formant la commande, selon la flèche F1 , en fonctionnement d’urgence, l’organe 13 se déplace en translation selon l’axe X en s’éloignant de l’élément rotatif 9, selon la flèche F2. Il faut pour cela appliquer au câble 21 une force supérieure à celle du ressort 19 qui maintient en position embrayée l’organe 13. Alors les moyens de liaison débrayables se déconnectent et l’élément rotatif 9 se retrouve libre en rotation autour de l’arbre principal 7 et est entraîné par le ressort de torsion 25 qui peut maintenant libérer son énergie. La configuration débrayée est atteinte. Le tube d’enroulement 1 1 est alors entraîné en rotation dans le sens de l’enroulement du tablier.  When actuating the cable 21 forming the control, according to the arrow F1, in emergency operation, the member 13 moves in translation along the X axis away from the rotary member 9, according to the arrow F2. To do this, it is necessary to apply to the cable 21 a force greater than that of the spring 19 which holds the member 13 in the engaged position. Then the disengageable connection means are disconnected and the rotary element 9 is free to rotate around the shaft. 7 and is driven by the torsion spring 25 which can now release its energy. The disengaged configuration is reached. The winding tube 1 1 is then rotated in the direction of the winding of the deck.
Lorsque l’on cesse d’actionner le câble 21 , le ressort 19 repousse l’organe 13 contre l’élément rotatif 9 pour que les moyens de liaison débrayables s’accouplent de nouveau. Les deux extrémités 250 et 252 du ressort de torsion 25 se retrouvent fixes par rapport à l’arbre principal 7, l’élément rotatif 9 ne peut être mis en mouvement que par l’actionneur 3. On retrouve la configuration embrayée.  When the cable 21 is no longer actuated, the spring 19 pushes the member 13 against the rotary element 9 so that the disengageable connection means mate again. The two ends 250 and 252 of the torsion spring 25 are fixed relative to the main shaft 7, the rotary member 9 can be set in motion by the actuator 3. The configuration is found engaged.
Le système d’entraînement 1 a l'avantage d'être réarmable donc réutilisable. En effet lorsque la commande de débrayage est déclenchée, le système d’entraînement 1 est en configuration débrayée et le ressort de torsion 25 libère son énergie. Avant de relâcher le câble 21 et de rebasculer en configuration embrayée pour retrouver un fonctionnement normal, il est toujours possible de mettre manuellement l’élément rotatif 9 en rotation, par exemple en manipulant le tube d'enroulement 1 1 ou tout autre axe relié à l’élément rotatif 9, ou même en actionnant l’arbre principal 7 (par l’actionneur 3, par un treuil, entre autres) étant donné que le tablier est alors bloqué en position haute suite à son enroulement d’urgence. Ainsi, il est possible de retendre le ressort de torsion 25, ou de le remettre en état précontraint, car sa première extrémité 250 est fixée à l'arbre principal 7 qui est libre en rotation, tandis que la seconde extrémité 252 est liée à l’élément rotatif 9 qui est alors fixe en rotation. On applique au ressort de torsion 25 une rotation, par exemple un nombre de tours prédéfini en fonction du couple nécessaire au relevage du tablier, puis on relâche le câble 21 pour retrouver de nouveau la configuration embrayée. The drive system 1 has the advantage of being resettable and reusable. Indeed when the clutch control is triggered, the drive system 1 is in the disengaged configuration and the torsion spring 25 releases its energy. Before releasing the cable 21 and back in the engaged configuration to regain normal operation, it is still possible to manually rotate the rotating member 9, for example by manipulating the winding tube 1 1 or any other axis connected to the element rotary 9, or even by actuating the main shaft 7 (by the actuator 3, by a winch, among others) since the deck is then locked in the raised position due to its emergency winding. Thus, it is possible to tighten the torsion spring 25, or to restore it to the prestressed state, because its first end 250 is fixed to the main shaft 7 which is free to rotate, while the second end 252 is connected to the rotating element 9 which is then fixed in rotation. A rotation is applied to the torsion spring 25, for example a predetermined number of revolutions as a function of the torque necessary to raise the apron, and then the cable 21 is released to find the engaged configuration again.
Selon un aspect optionnel, dans le cas d'un large volet roulant, l’actionneur 3 peut être un moteur de longueur importante, et est susceptible de ne pas se maintenir dans l'axe central X du tube d'enroulement 1 1 sous l'effet de son propre poids. Fixé seulement au niveau de la joue 12a et au niveau de l’élément rotatif 9, l’actionneur 3 fléchira dans le tube d'enroulement 1 1 au risque de le toucher. Le système d’entrainement 1 peut donc comprendre une pièce de soutien 31 montée dans le tube d’enroulement 1 1 et montée sur l'arbre principal 7 ou sur la pièce de liaison 6 au plus proche de l’arbre de sortie 5 de l’actionneur 3. La position de l’arbre principal 7 par rapport au tube d’enroulement 1 1 est donc maintenue. De cette manière, l’actionneur 3 est soutenu par deux appuis pour être maintenu aligné avec l'axe central X.  According to an optional aspect, in the case of a large roller shutter, the actuator 3 may be a motor of considerable length, and may not be maintained in the central axis X of the winding tube 1 1 under the effect of its own weight. Fixed only at the cheek 12a and at the rotating member 9, the actuator 3 will flex in the winding tube 1 1 at the risk of touching it. The drive system 1 may therefore comprise a support piece 31 mounted in the winding tube January 1 and mounted on the main shaft 7 or on the connecting piece 6 closest to the output shaft 5 of the Actuator 3. The position of the main shaft 7 with respect to the winding tube 11 is thus maintained. In this way, the actuator 3 is supported by two supports to be kept aligned with the central axis X.
Selon un mode de réalisation non représenté, les seconds moyens élastiques peuvent être formés non pas par un seul ressort 25 mais par plusieurs éléments élastiques, notamment des ressorts. Par exemple, plusieurs ressorts coaxiaux disposés en série ou en parallèle peuvent être utilisés. Dans le cas d’une disposition en série, les ressorts seront disposés de façon coaxiale, chaque ressort exerçant un couple sur le suivant, le dernier étant relié à l’élément rotatif 9 pour transmettre le couple global de la série de ressort. Dans le cas d’une disposition en parallèle, les ressorts seront disposés de façon coaxiale, chaque ressort exerçant son couple sur l’élément rotatif.  According to an embodiment not shown, the second elastic means may be formed not by a single spring 25 but by a plurality of elastic elements, including springs. For example, several coaxial springs arranged in series or in parallel can be used. In the case of a series arrangement, the springs will be arranged coaxially, each spring exerting a torque on the next, the latter being connected to the rotary member 9 to transmit the overall torque of the spring series. In the case of a parallel arrangement, the springs will be arranged coaxially, each spring exerting its torque on the rotating element.
Les caractéristiques des modes de réalisation et variantes décrits ci-dessus peuvent être combinées pour former de nouveaux modes de réalisation de l’invention.  The features of the embodiments and variants described above may be combined to form new embodiments of the invention.

Claims

REVENDICATIONS
1. Système d’entrainement (1 ) en rotation d’un organe d’enroulement (1 1 ) d’un tablier d’écran de fermeture enroulable autour d’un axe central (X), le système d’entrainement comprenant : 1. Drive system (1) in rotation of a winding member (1 1) of a closure screen apron rollable around a central axis (X), the drive system comprising:
- un actionneur (3) entraînant un arbre de sortie (5),  an actuator (3) driving an output shaft (5),
- un arbre principal (7) entraîné par l’arbre de sortie (5),  a main shaft (7) driven by the output shaft (5),
- un élément rotatif (9) mobile en rotation et fixe en translation par rapport à l’arbre principal (7), et solidaire en rotation de l’organe d’enroulement (1 1 ), cet élément étant équipé de premiers moyens d’accouplement en rotation (92),  - A rotatable element (9) movable in rotation and fixed in translation relative to the main shaft (7), and integral in rotation with the winding member (1 1), this element being equipped with first means of rotational coupling (92),
- un organe (13) mobile en translation suivant l’axe central (X) par rapport à l’élément rotatif (9), solidaire en rotation de l’arbre principal (7) et comportant des seconds moyens d’accouplement en rotation (132),  - a member (13) movable in translation along the central axis (X) relative to the rotary member (9), integral in rotation with the main shaft (7) and comprising second coupling means in rotation ( 132)
- des premiers moyens élastiques (19) qui repoussent par défaut l’organe (13) mobile dans une configuration embrayée, dans laquelle les moyens d’accouplement (92, 132) en rotation coopèrent de manière à rendre solidaires en rotation l’arbre principal (7) et l’élément rotatif (9),  first resilient means (19) which, by default, push the movable member (13) into an engaged configuration, in which the coupling means (92, 132) in rotation cooperate in such a way as to rotate the main shaft in rotation; (7) and the rotary member (9),
- une commande (21 ) reliée à l’organe (13) mobile en translation et adaptée pour déplacer l’organe (13) mobile en translation vers une configuration débrayée, dans laquelle les moyens d’accouplement (92, 132) en rotation sont éloignés l’un de l’autre de manière à désolidariser en rotation l’arbre principal (7) et l’élément rotatif (9),  a control (21) connected to the member (13) movable in translation and adapted to move the movable member (13) in translation towards a disengaged configuration, in which the coupling means (92, 132) in rotation are spaced apart from one another so as to disengage in rotation the main shaft (7) and the rotary element (9),
- des seconds moyens élastiques (25) adaptés pour entraîner l’élément rotatif (9) en rotation autour de l’axe central (X) de telle manière que le tablier soit entraîné vers une configuration enroulée,  second elastic means (25) adapted to drive the rotating element (9) in rotation around the central axis (X) so that the apron is driven to a wound configuration,
caractérisé en ce que les seconds moyens élastiques (25) entraînent l’élément rotatif (9) en rotation autour de l’axe central (X) de telle manière que le tablier soit entraîné vers une configuration enroulée uniquement en configuration débrayée, et sont interposés en série entre l’arbre principal (7) et l’élément rotatif (9).  characterized in that the second resilient means (25) causes the rotatable member (9) to rotate about the central axis (X) such that the apron is driven to a wound configuration only in a disengaged configuration, and is interposed in series between the main shaft (7) and the rotary element (9).
2. Système d’entrainement selon la revendication 1 , caractérisé en ce qu’en configuration débrayée de l’organe mobile en translation (13), les seconds moyens élastiques (25) sont aptes à être précontraints par une rotation relative entre l’arbre principal (7) et l’élément rotatif (9). 2. Drive system according to claim 1, characterized in that in disengaged configuration of the movable member in translation (13), the second elastic means (25) are adapted to be prestressed by a relative rotation between the shaft main (7) and the rotary element (9).
3. Système d’entrainement selon l’une des revendications 1 et 2, caractérisé en ce que les seconds moyens élastiques sont formés par au moins un ressort de torsion (25) fixé à l’une (250) de ses extrémités à l’arbre principal (7), et à son autre extrémité (252), à l’élément rotatif (9). 3. Drive system according to one of claims 1 and 2, characterized in that the second elastic means are formed by at least one torsion spring (25) attached to one (250) of its ends to the main shaft (7), and at its other end (252), to the rotary member (9).
4. Système d’entrainement selon la revendication 3, caractérisé en ce que les seconds moyens élastiques sont formés par plusieurs ressorts de torsion disposés en série ou en parallèle. 4. Drive system according to claim 3, characterized in that the second elastic means are formed by a plurality of torsion springs arranged in series or in parallel.
5. Système d’entrainement selon l’une des revendications précédentes, caractérisé en ce que l’arbre principal (7) a une section circulaire et en ce que l’élément rotatif (9) présente un orifice central (90) de réception de l’arbre principal (7), cet orifice (90) ayant une section circulaire. Drive system according to one of the preceding claims, characterized in that the main shaft (7) has a circular cross section and in that the rotary element (9) has a central hole (90) for receiving the main shaft (7), this orifice (90) having a circular section.
6. Système d’entrainement selon la revendication 5, caractérisé en ce qu’il comporte une pièce intermédiaire (15) montée solidaire en translation et rotation de l’arbre principal (7), et libre en translation par rapport à l’organe (13) mobile en translation. 6. Drive system according to claim 5, characterized in that it comprises an intermediate piece (15) mounted integral in translation and rotation of the main shaft (7), and free in translation relative to the member ( 13) movable in translation.
7. Système d’entrainement selon l’une des revendications 1 à 4, caractérisé en ce que l’arbre principal (7) présente une section non circulaire, en ce que l’organe (13) mobile en translation présente le même profil que celui de l’arbre principal (7), et le système d’entraînement (1 ) ne comprend pas de pièce intermédiaire entre l’arbre principal (7) et l’organe (13) mobile en translation. 7. Drive system according to one of claims 1 to 4, characterized in that the main shaft (7) has a non-circular section, in that the member (13) movable in translation has the same profile as that of the main shaft (7), and the drive system (1) does not include an intermediate piece between the main shaft (7) and the member (13) movable in translation.
8. Système d’entrainement selon l’une des revendications précédentes, caractérisé en ce que les premier et second moyens d’accouplement en rotation (92, 132) sont formés par des formes complémentaires, telles que des dentures ou des cannelures, prévues sur l’organe (13) mobile en translation et sur l’élément rotatif (9). 8. Drive system according to one of the preceding claims, characterized in that the first and second rotational coupling means (92, 132) are formed by complementary shapes, such as teeth or splines, provided on the member (13) movable in translation and on the rotary member (9).
9. Système d’entrainement selon l’une des revendications 1 à 7, caractérisé en ce que les premier et second moyens d’accouplement en rotation sont formés par un système d’embrayage à friction. 9. Drive system according to one of claims 1 to 7, characterized in that the first and second rotational coupling means are formed by a friction clutch system.
10. Système d’entrainement selon l’une des revendications précédentes, caractérisé en ce que l’élément rotatif (9) est relié à un tube d’enroulement (1 1 ) du tablier, formant l’organe d’enroulement. 10. Drive system according to one of the preceding claims, characterized in that the rotary member (9) is connected to a winding tube (1 1) of the deck, forming the winding member.
1 1. Système d’entrainement selon l’une des revendications 1 à 9, caractérisé en ce que l’élément rotatif (9) est relié à un cordon supportant des lames formant le tablier, ce cordon formant l’organe d’enroulement. 1 1. Drive system according to one of claims 1 to 9, characterized in that the rotary member (9) is connected to a bead supporting blades forming the deck, this bead forming the winding member.
PCT/EP2019/054319 2018-02-22 2019-02-21 System for driving a winding member in rotation WO2019162380A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19706981.8A EP3755864B1 (en) 2018-02-22 2019-02-21 System for driving a winding member in rotation
ES19706981T ES2926823T3 (en) 2018-02-22 2019-02-21 Rotating drive system of a winding member

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1851527 2018-02-22
FR1851527A FR3078095B1 (en) 2018-02-22 2018-02-22 ROTATING DRIVE SYSTEM OF A WINDING UNIT

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WO2019162380A1 true WO2019162380A1 (en) 2019-08-29

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ES (1) ES2926823T3 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900017567A1 (en) * 2019-09-30 2021-03-30 Moveup S R L INTEGRATED GROUP FOR THE MOTORIZED OPERATION OF A ROLLING SHUTTER.
WO2021179020A1 (en) * 2020-03-06 2021-09-10 Duc Le Manh A mechanism for automatic opening of rolling doors in case of emergency

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391576A (en) * 1964-04-30 1965-03-05 Nihon Bunka Roller Shutter Co Roll-up sheet closure device
EP0751278A1 (en) 1995-06-28 1997-01-02 Bubendorff S.A. Motorized roller shutter
JPH11101077A (en) * 1997-09-29 1999-04-13 Tostem Corp Shutter
WO2003083245A2 (en) * 2002-03-28 2003-10-09 Simu Maneuvering mechanism and closing installation or sun-protection installation incorporating one such device
FR3004745A3 (en) 2013-04-17 2014-10-24 Somfy Sas ROTATIONAL DRIVE SYSTEM FOR ROLLER DRUM, ROLL-UP CLOSURE SCREEN AND STEERING METHOD

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1391576A (en) * 1964-04-30 1965-03-05 Nihon Bunka Roller Shutter Co Roll-up sheet closure device
EP0751278A1 (en) 1995-06-28 1997-01-02 Bubendorff S.A. Motorized roller shutter
JPH11101077A (en) * 1997-09-29 1999-04-13 Tostem Corp Shutter
WO2003083245A2 (en) * 2002-03-28 2003-10-09 Simu Maneuvering mechanism and closing installation or sun-protection installation incorporating one such device
FR3004745A3 (en) 2013-04-17 2014-10-24 Somfy Sas ROTATIONAL DRIVE SYSTEM FOR ROLLER DRUM, ROLL-UP CLOSURE SCREEN AND STEERING METHOD

Also Published As

Publication number Publication date
FR3078095A1 (en) 2019-08-23
ES2926823T3 (en) 2022-10-28
FR3078095B1 (en) 2020-10-23
EP3755864A1 (en) 2020-12-30
EP3755864B1 (en) 2022-08-10

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