EP3755864B1 - 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
EP3755864B1
EP3755864B1 EP19706981.8A EP19706981A EP3755864B1 EP 3755864 B1 EP3755864 B1 EP 3755864B1 EP 19706981 A EP19706981 A EP 19706981A EP 3755864 B1 EP3755864 B1 EP 3755864B1
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EP
European Patent Office
Prior art keywords
main shaft
drive system
rotation
rotating element
apron
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EP19706981.8A
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German (de)
French (fr)
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EP3755864A1 (en
Inventor
Arnaud Marcassoli
Sébastien Brogly
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Zurfluh Feller SAS
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Zurfluh Feller SAS
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—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

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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)

Description

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 closing screen apron that can be rolled up 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 rolling shutter or door comprises a rolling member, such as a rolling tube, on which is fixed a flexible apron, such as an apron formed by slats 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 the possibility of maneuvering the apron in the event of a 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 mounted in parallel with the motor, the spring and the motor simultaneously acting 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, i.e. to break the connection between the motor and the winding tube, which switches over to direct pulling operation (the spring acting only on the winding tube) .

JPH 11 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 11 101077 also describes a drive system consisting of a torsion spring mounted 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 certain cases a problem of jerks during normal operation: because of the spring which passes from a state of relaxation to a state of compression, the motor must operate in two ways different during the winding and unwinding phase of the apron (braking mode and motor mode). When the engine switches from one operating mode to another, the appearance of jerks/disturbances at the bulkhead level is observed; the winding is not fluid, which is not satisfactory from an aesthetic point of view, but also technically, the parts (engine 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 are also “CSI” motors for Integrated Emergency Control, that is to say integrating a manual winch which makes it possible to set the motor rotor 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 long to raise the deck sufficiently in an emergency. The manual operation 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 this is rarely correctly 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 apron is obtained more quickly and 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 :

  • un actionneur entrainant un arbre de sortie,
  • un arbre principal entraîné par l'arbre de sortie,
  • un élément rotatif mobile en rotation et fixe en translation par rapport à l'arbre principal, et apte à être solidaire en rotation de l'organe d'enroulement, cet élément étant équipé de premiers moyens d'accouplement en 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,
  • 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,
  • 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,
  • des seconds moyens élastiques adaptés pour entrainer l'élément rotatif en rotation autour de l'axe central de telle manière que le tablier soit entraîné vers une configuration enroulée.
To this end, the invention relates to a drive system in rotation of a winding member of a closure screen apron that can be rolled up around a central axis, the drive system comprising:
  • an actuator driving an output shaft,
  • a main shaft driven by the output shaft,
  • a rotating element movable in rotation and fixed in translation relative to the main shaft, and able to be integral in rotation with the winding member, this element being equipped with first coupling means in 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 means for coupling in rotation,
  • first elastic means which push the movable member back by default into a clutched configuration, in which the rotational coupling means cooperate so as to make the main shaft and the rotary element integral in rotation,
  • 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 of coupling in rotation are spaced apart from each other so as to disconnect in rotation the main shaft and rotating element,
  • second elastic means adapted to drive the rotating element in rotation around the central axis in such a way that the apron is driven towards a rolled-up 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 in rotation around the central axis in such a way that the apron is driven towards a rolled-up configuration only in the disengaged configuration, and are interposed in series between the shaft main and rotating 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.Thanks to the invention, the ascent of the apron is permitted by the simple translation of a cable. The energy of the prestressed spring is released directly after disengaging the coupling means, which causes automatic rewinding of the roller shutter. The system is fast: the apron raising time is very short compared to other systems, in particular the CSI. The system is also autonomous: no additional instrument (TO, handwheel, etc.) is necessary.

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.The jerk problems often encountered do not exist in this system since the spring is mounted in series: the motor rotates the spring which rotates the tube. Given that the spring is only stressed after activation of the automatic winding process, the invention ensures normal operation of the roller shutter outside of an emergency situation. 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 :

  • 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.
  • 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.
  • Les seconds moyens élastiques sont formés par plusieurs ressorts de torsion disposés en série ou en parallèle.
  • 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.
  • 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.
  • 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.
  • 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.
  • Les premier et second moyens d'accouplement en rotation sont formés par un système d'embrayage à friction.
  • L'élément rotatif est apte à être relié à un tube d'enroulement du tablier, formant l'organe d'enroulement.
  • L'élément rotatif est apte à être à relié à un cordon supportant des lames formant le tablier, ce cordon formant l'organe d'enroulement.
According to advantageous but non-obligatory aspects of the invention, such a drive system may incorporate one or more of the following characteristics, taken in any technically admissible combination:
  • In the disengaged configuration of the movable member in translation, the second elastic means are able to be prestressed by a relative rotation between the main shaft and the rotary element.
  • 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 rotating element.
  • The second elastic means are formed by several torsion springs arranged in series or in parallel.
  • The main shaft has a circular section and the rotating element has a central orifice for receiving the main shaft, this orifice having a circular section.
  • The system comprises an intermediate piece mounted integral in translation and rotation with the main shaft, and free in translation with respect to the member moving 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, and the drive system does not include any intermediate part between the main shaft and the movable member in translation.
  • The first and second rotational coupling means are formed by complementary shapes, such as teeth or splines, provided on the translationally movable member and on the rotating element.
  • The first and second rotational coupling means are formed by a friction clutch system.
  • The rotating element is adapted to be connected to a winding tube of the apron, forming the winding member.
  • The rotating element is adapted to be connected to a cord supporting blades forming the apron, this cord forming the winding member.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront 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 :

  • la figure 1 représente en vue schématique un système d'entrainement conforme à l'invention dans une configuration embrayée ;
  • la figure 2 représente en vue schématique le système d'entrainement de la figure 1 dans une configuration débrayée ;
  • la figure 3 est une vue en perspective éclatée du système d'entrainement des figures 1 et 2.
The invention will be better understood and other advantages thereof will appear more clearly in the following description of a drive system in accordance with its principle, given by way of non-limiting example with reference to the appended drawings in which :
  • the figure 1 shows in schematic view a drive system according to the invention in a clutched configuration;
  • the picture 2 schematically shows the drive system of the figure 1 in a disengaged configuration;
  • the figure 3 is an exploded perspective view of the drive system 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.The figures 1 to 3 represent 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 can 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, in such a way that the main shaft 7 is integral in rotation with 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 in pivot connection with the main shaft 7. The rotary element 9 is fixed axially on the main shaft 7. This fixing in translation is ensured 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 element 9 has a central orifice 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 a variant not shown, if the main shaft 7 has a profile that does not allow a direct pivot connection (that is to say mounting of the rotary element 9 directly on the main shaft 7) then a intermediate piece may be provided between the main shaft 7 and the rotating element 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 can in particular be of square, hexagonal, etc. profile.

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 11 formant l'organe d'enroulement, autour duquel viennent s'enrouler des lames du tablier. Le tube d'enroulement 11 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 11 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 rotary element 9 is integral in rotation with a winding member of a roll-up closing screen apron. In the case of a rolling shutter, the rotating element 9 is connected to a winding tube 11 forming the winding member, around which the slats of the apron are wound. The winding tube 11 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 11 is mounted free in rotation on two side cheeks 12a and 12b, mounted in a support such as a wall, and which also provide support for 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 not shown, in the case of “BSO” blinds, the rotary element 9 can be connected to a cord which generates the stacking of the slats, or else to an axis which winds this cord.

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 rotating element 9. The member 13 is integral in rotation with the main shaft 7. The main shaft 7 having a circular profile making rotational attachment by direct mounting impossible, the drive system 1 comprises an intermediate part 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 leaving it the possibility of translation along the X axis. As can be seen on the figure 3 , the intermediate piece 15 has a circular internal section in which the main shaft 7 is received. The intermediate piece 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 part 15 has a non-circular outer profile 150, hexagonal in this example, complementary to a hexagonal profile 130 provided on the inside of the member 13. Thus, the rotation of the intermediate part 15 is transmitted to the member 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.In a variant not shown, if the main shaft 7 has a non-circular section, the drive system may not include an intermediate piece 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.The rotary element 9 and the member 13 have disengageable connecting means which allow them to engage or disengage depending on 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 means of coupling in rotation 132. The means of coupling in rotation 92 and 132 are formed by complementary shapes, such as teeth or splines. In this example, the shapes are circumferentially alternating projecting and recessed reliefs forming, in the coupled configuration, stops in rotation. Any other shape can be considered.

Selon une variante non représentée, les premiers et seconds moyens d'accouplement en rotation peuvent être formés par un système d'embrayage à friction.According to a variant not shown, the first and second rotational coupling means can 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 a clutched configuration shown in figure 1 , the coupling means 92 are in engagement with the coupling means 132, causing a connection in rotation of the member 13 with the rotary element 9. In a disengaged configuration shown in picture 2 , the coupling means 92 are in a second remote position and are no longer in engagement with the coupling means 132, causing a separation in rotation of the member 13 with the rotary element 9. Between the engaged configuration and the disengaged configuration, the member 13 has undergone a translation along the axis X opposite the rotary 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 which by default push the member 13 into 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 control can be provided in the form of a cable 21 operable by a user, and connected to the member 13 by a connecting piece 23. When the cable 21 is pulled, the member 13 is moved away from the rotary element 9, which leads to its disengaged configuration.

Le système d'entraînement 1 comprend également des seconds moyens élastiques qui entrainent 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 rotary element 9 in rotation around the central axis X in such a way that the apron is driven towards a rolled-up configuration. These second elastic means are intended to provide a return torque on the apron towards its rolled-up position in the event of an 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 11. L'actionneur 3 entraine l'arbre principal 7, qui entraine les moyens élastiques, qui entrainent l'élément rotatif 9, qui entraine le tube d'enroulement 11.The second elastic means are interposed between the main shaft 7 and the rotary element 9. In other words, these elastic means are arranged in series between the actuator 3 and the winding tube 11. The actuator 3 drives the main shaft 7, which drives the elastic means, which drives the rotary element 9, which drives the winding tube 11.

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 raising of the apron, a prestress is applied to the second elastic means, so that these store energy and can deliver sufficient torque to raise the apron when the need arises. In the disengaged configuration of the member 13, the second elastic means are able to be prestressed by a relative rotation between the main shaft 7 and the rotary element 9. In in other words, in an unstressed state, the second elastic means cannot generate a relative rotation of the main shaft 7 and the rotary element 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 rotary element 9 with respect to each other, in such a way that the apron 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 elastic means are formed by a torsion spring 25 comprising a first end 250 fixed to the main shaft 7, and a second other end 252 fixed to the rotary element 9. According to one example, the first end 250 is fixed to the main shaft 7 by a bolt 27. According to one example, the second end 252 is fixed to the rotary element 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 entrainé en rotation, puis entrainera le tube d'enroulement 11. 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 the 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 then finally it passes from the member 13 to the rotary element 9 thanks to the disengageable connecting means 92 and 132. The torque of the actuator 3 is found at the level of the rotary element 9. The torsion spring 25 pre-tensioned keeps the rotary element 9 under tension which, once released, will be driven in rotation, then will drive the winding tube 11 But as long as the member 13 and the rotating element 9 are engaged, the torsion spring 25 cannot 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 entrainé par le ressort de torsion 25 qui peut maintenant libérer son énergie. La configuration débrayée est atteinte. Le tube d'enroulement 11 est alors entrainé en rotation dans le sens de l'enroulement du tablier.When the cable 21 forming the control is actuated, according to the arrow F1, in emergency operation, the member 13 moves in translation along the axis X away from the rotary element 9, according to the arrow F2. This requires applying to the cable 21 a force greater than that of the spring 19 which keeps the member 13 in the engaged position. main 7 and is driven by the torsion spring 25 which can now release its energy. The disengaged configuration is reached. The winding tube 11 is then driven in rotation in the direction of winding of the apron.

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 one ceases to actuate the cable 21, the spring 19 pushes the member 13 against the rotary element 9 so that the disengageable connecting means are coupled again. The two ends 250 and 252 of the torsion spring 25 are fixed with respect to the main shaft 7, the rotary element 9 can only be set in motion by the actuator 3. The engaged configuration is found again.

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 11 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 therefore reusable. In fact, when the disengagement 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 switch back to the engaged configuration to return to normal operation, it is always possible to manually put the rotary element 9 in rotation, for example by manipulating the winding tube 11 or any other axis connected to the rotary element 9, or even by actuating the main shaft 7 (by the actuator 3, by a winch, among others) given that the apron is then blocked in the high position following its emergency winding. Thus, it is possible to retension the torsion spring 25, or to restore it to a pre-stressed state, because its first end 250 is fixed to the main shaft 7 which is free to rotate, while the second end 252 is linked to the rotating element 9 which is then fixed in rotation. Rotation is applied to the torsion spring 25, for example a predefined number of turns depending on the torque required to raise the deck, then the cable 21 is released to return to the engaged configuration.

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 11 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 11 au risque de le toucher. Le système d'entrainement 1 peut donc comprendre une pièce de soutien 31 montée dans le tube d'enroulement 11 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 11 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 rolling shutter, the actuator 3 can be a motor of considerable length, and is likely not to remain in the central axis X of the winding tube 11 under the effect of its own weight. Fixed only at cheek 12a and at rotary element 9, actuator 3 will flex in winding tube 11 at the risk of touching it. The drive system 1 can therefore comprise a support part 31 mounted in the winding tube 11 and mounted on the main shaft 7 or on the connecting part 6 closest to the output shaft 5 of the actuator 3. The position of the main shaft 7 relative to the winding tube 11 is therefore 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 can be formed not by a single spring 25 but by several elastic elements, in particular springs. For example, several coaxial springs arranged in series or in parallel can be used. In the case of an arrangement in series, the springs will be arranged coaxially, each spring exerting a torque on the next, the last being connected to the rotary element 9 to transmit the overall torque of the series of springs. 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, en restant dans le périmètre de protection défini par les revendications jointes.The characteristics of the embodiments and variants described above can be combined to form new embodiments of the invention, while remaining within the scope of protection defined by the appended claims.

Claims (11)

  1. A drive system (1) for rotating a winding member (11) of a closure screen apron windable about a central axis (X), the drive system comprising:
    - an actuator (3) driving an output shaft (5),
    - a main shaft (7) driven by the output shaft (5),
    - a rotating element (9) which is mobile in rotation and fixed in translation with respect to the main shaft (7), and which is able to be fixed in rotation with the winding member (11), this element being equipped with the first rotational coupling means (92),
    - a member (13) which is translationally movable along the central axis (X) with respect to the rotating element (9), rotationally fixed with the main shaft (7) and comprising second rotary coupling means (132),
    - first resilient means (19) which by default push the translatable member (13) into an engaged configuration, in which the rotational coupling means (92, 132) co-operate to make the main shaft (7) and the rotating element (9) rotationally fixed to one another,
    - a control (21) connected to the translatable member (13) and adapted to move the translatable member (13) to a disengaged configuration, in which the rotational coupling means (92, 132) are moved away from each other so as to rotationally disengage the main shaft (7) and the rotating element (9),
    - second resilient means (25) adapted to drive the rotating element (9) in rotation about the central axis (X) such that the apron is driven to a rolled-up configuration,
    characterized in that the second resilient means (25) drive the rotating element (9) in rotation about the central axis (X) in such a way that the apron is driven towards a rolled-up configuration only in the disengaged configuration, and are interposed in series between the main shaft (7) and the rotating element (9).
  2. The drive system according to claim 1, characterized in that in the disengaged configuration of the translatable member (13), the second resilient means (25) are adapted to be pre-stressed by relative rotation between the main shaft (7) and the rotating element (9).
  3. The drive system according to one of claims 1 and 2, characterized in that the second resilient means are formed by at least one torsion spring (25) fixed at one of its ends (250) to the main shaft (7) and at its other end (252) to the rotating element (9).
  4. The drive system according to claim 3, characterized in that the second spring means are formed by a plurality of torsion springs arranged in series or in parallel.
  5. The 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 orifice (90) for receiving the main shaft (7), this orifice (90) having a circular cross-section.
  6. The drive system according to claim 5, characterized in that it comprises an intermediate part (15) mounted so as to be fixed in translation and rotation with the main shaft (7), and free in translation with respect to the member (13) which is translationally movable.
  7. The drive system according to one of claims 1 to 4, characterized in that the main shaft (7) has a non-circular cross-section, that the translatable member (13) has the same profile as that of the main shaft (7), and the drive system (1) does not comprise an intermediate part between the main shaft (7) and the translatable member (13).
  8. The drive system according to any of the preceding claims, characterized in that the first and second rotational coupling means (92, 132) are formed by complementary shapes, such as serrations or splines, provided on the translatable member (13) and on the rotating element (9).
  9. The drive system according to any of claims 1 to 7, characterized in that the first and second rotational coupling means are formed by a friction clutch system.
  10. The drive system according to one of the preceding claims, characterized in that the rotating element (9) is adapted to be connected to a winding tube (11) of the apron, forming the winding member.
  11. The drive system according to one of the claims 1 to 9, characterized in that the rotating element (9) is adapted to be connected to a cord supporting the slats forming the apron, this cord forming the winding member.
EP19706981.8A 2018-02-22 2019-02-21 System for driving a winding member in rotation Active EP3755864B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1851527A FR3078095B1 (en) 2018-02-22 2018-02-22 ROTATING DRIVE SYSTEM OF A WINDING UNIT
PCT/EP2019/054319 WO2019162380A1 (en) 2018-02-22 2019-02-21 System for driving a winding member in rotation

Publications (2)

Publication Number Publication Date
EP3755864A1 EP3755864A1 (en) 2020-12-30
EP3755864B1 true EP3755864B1 (en) 2022-08-10

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EP19706981.8A Active EP3755864B1 (en) 2018-02-22 2019-02-21 System for driving a winding member in rotation

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EP (1) EP3755864B1 (en)
ES (1) ES2926823T3 (en)
FR (1) FR3078095B1 (en)
WO (1) WO2019162380A1 (en)

Families Citing this family (2)

* 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.
CN115989356A (en) * 2020-03-06 2023-04-18 李曼德 Mechanism for automatically opening rolling door in emergency

Family Cites Families (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
FR2736087B1 (en) 1995-06-28 1998-01-09 Bubendorff Sa MOTORIZED SHUTTER
JPH11101077A (en) * 1997-09-29 1999-04-13 Tostem Corp Shutter
FR2837865B1 (en) * 2002-03-28 2005-07-29 Simu MANUFACTURING MECHANISM AND CLOSURE OR SOLAR PROTECTION INSTALLATION INCORPORATING SUCH A DEVICE
FR3004745B3 (en) 2013-04-17 2017-01-27 Somfy Sas ROTATIONAL DRIVE SYSTEM FOR ROLLER DRUM, ROLL-UP CLOSURE SCREEN AND STEERING METHOD

Also Published As

Publication number Publication date
FR3078095B1 (en) 2020-10-23
FR3078095A1 (en) 2019-08-23
WO2019162380A1 (en) 2019-08-29
EP3755864A1 (en) 2020-12-30
ES2926823T3 (en) 2022-10-28

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