EP1549818B1 - Device for controlling a motorized shutter - Google Patents

Device for controlling a motorized shutter Download PDF

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Publication number
EP1549818B1
EP1549818B1 EP03766555A EP03766555A EP1549818B1 EP 1549818 B1 EP1549818 B1 EP 1549818B1 EP 03766555 A EP03766555 A EP 03766555A EP 03766555 A EP03766555 A EP 03766555A EP 1549818 B1 EP1549818 B1 EP 1549818B1
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EP
European Patent Office
Prior art keywords
lever
counting
wheels
stopping device
automatic stopping
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP03766555A
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German (de)
French (fr)
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EP1549818A1 (en
Inventor
Michel Roger
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Somfy SA
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Somfy SA
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob
    • H01H19/18—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H19/183—Operating parts, e.g. turn knob adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift adapted for operation by the simultaneous action of two cam plates, rotating at different speeds

Definitions

  • the present invention relates to an automatic stopping device for driving a sun protection element, occultation or closure. It relates in particular to a device according to the preamble of claim 1.
  • the end-of-stroke detection can be done for example by means of a sensor which can consist of a simple switch opening the supply circuit of the actuator when the element abuts against it.
  • This detection can still be done through an electronic or mechanical device detecting a resistant mechanical torque when the element comes to the end of stroke against a mechanical stop, and then controlling the opening of the electrical supply circuit of the actuator.
  • the actuators of these elements sometimes add automatic shut-off devices for the upper limit switch and / or for the end of the stroke. low.
  • an automatic stop device comprising two revolution counting mechanisms consist of coaxial counting wheels driven by pinions and each associated with a notched cam cooperating with a cutoff finger integral with a common cutoff lever, recalled in a position in which the cutting fingers are in contact with the notched cams. When the notches are aligned, the cutting fingers penetrate into them and the cutoff lever actuates a switch opening the supply circuit of an engine.
  • the device further comprises two reset mechanisms respectively associated with the two counting mechanisms. They mainly comprise disengaging means counting wheels and a lever for resetting the counting wheels to zero by acting by hammers on integral core cams thereof.
  • the counting wheels, the cutoff lever and the zeroing lever of each counting mechanism are pivoted in a common cradle articulated with respect to a fixed frame having profiled portions intended to cooperate with the cutoff levers and the levers of zeroing when moving cradles.
  • Automatic shutdown devices described in the applications FR 2,479,548 , FR 2,756,320 , EP 1 172 515 and WO 99/26262 have substantially the same architecture as the previously described device.
  • the different counting wheels of the same counting mechanism are arranged in a row on the same axis, associated with notched cams and mesh with sprockets.
  • Patent is known US 4,307,269 , an electrical interruption device driven by a shaft.
  • the device comprises two interruption mechanisms whose wheels and cams are arranged on two axes and on the same plane. Zeroing this device can only be done by dismounting it.
  • the object of the invention is to provide an automatic stop device overcoming these disadvantages and improving the existing devices.
  • the invention proposes to realize an automatic stop device of small size in the direction of its length and whose architecture of the zeroing mechanism is simple and ensures the reliability of the device.
  • the automatic stopping device according to the invention is characterized by the characterizing part of claim 1.
  • the appended drawing shows, by way of example, two embodiments of the automatic stopping device according to the invention.
  • the figure 1 is a sectional view of a first embodiment of the automatic stopping device according to the invention.
  • the figure 2 is a sectional view according to plane II-II of the figure 1 of this first embodiment of the automatic stop device.
  • FIGS. 3 to 6 are schematic views of this first embodiment of the automatic stopping device shown in different phases of operation.
  • the figure 7 is a schematic view of a variant of this first embodiment.
  • the figure 8 is a sectional view of another variant of this first embodiment.
  • the figure 9 is a schematic view of a second embodiment of the automatic shutdown device.
  • the device represented in Figures 1 and 2 comprises a frame 1 in which is mounted in pivot connection a shaft 2 comprising a pinion 3.
  • the shaft 2 is intended to be driven by the drive motor of a sun protection element, occultation or closing, via a reducer.
  • On this frame 1 are also mounted in pivot connection with it around the axis of the shaft 2, a zeroing lever 4 and a switching lever 5 can be manually tilted.
  • Two intermediate wheels 6a and 6b having a different number of teeth and meshing with the pinion 3, are mounted symmetrically with respect to the axis of the shaft 2 and pivotally connected to the frame 1.
  • counter wheels 7a and 7b having a different number of teeth and meshing with the intermediate wheels 6a and 6b.
  • the numbers of teeth of the wheels 6a, 6b, 7a and 7b are chosen so that the wheel 7a is not driven at the same speed as the wheel 7b.
  • Each counting wheel 7a and 7b is flanked, on one side of a notched cam 8a, 8b consisting of a smooth wheel having a notch 9a, 9b on its circumference, and on the other side of a core cam 10a , 10b.
  • the cutoff lever 5 is movable about the axis of the shaft 2. It is provided with two cutting fingers 11a and 11b integral therewith and cooperating respectively with the notched cams 8a and 8b.
  • the cutoff lever has at one of these ends an arm 12 intended to actuate a switch 13 fixed to the frame 1.
  • the zeroing lever is also movable about the axis of the shaft 2. It is provided with two arms having elastic strips 14a and 14b constituting hammers intended to act respectively on each of the core cams 10a and 10b.
  • the cutoff lever 5 is biased by an elastic means not shown in a contact position of the fingers 11a and 11b with the notched cams 8a and 8b.
  • the zeroing lever 4 is for its part recalled by an elastic means not shown in a position in which the counting wheels 7a and 7b meshing with the intermediate wheels 6a and 6b.
  • the cutting fingers 11a and 11b are shown engaged in the notches 9a and 9b notched cams.
  • the mechanism is in a stop position, the arm 12 of the breaking lever 5 acting on the switch 13 which is connected in series with one of the windings of the motor and with a control switch of a first direction of rotation and which opens, when in this position, the motor supply circuit.
  • the cut-off lever 5 is manually operated so as to move it away from the position of the cut-off fingers against the action of the return spring. in contact with notched wheels.
  • the lever then comes into contact with two stops 15a and 15b made symmetrically on the zeroing lever 4. This contact action has the consequence, as shown in FIG. figure 4 , to tilt the reset lever 4 against the action of its return spring and disengage the counting wheels 7a and 7b of the intermediate wheels 6a and 6b.
  • the counting wheels are then subject to the only mechanical actions of the hammers 14a and 14b on the core cams 10a and 10b. They are thus driven in rotation to the positions represented at figure 5 , in which the actions of the hammers on the heart cams have directions passing through the axis of the counting wheels.
  • the cutoff lever 5 is then released.
  • the zeroing lever returns, under the effect of its return spring, in a meshing position of the counting wheels with the intermediate wheels and the cutoff lever returns, under the effect of its return spring, in a position of contact of the cutting fingers with the notched wheels, in the notches.
  • the arm 12 of the cutoff lever then acts as shown in FIG. figure 1 , on the switch 13.
  • This particularly simple procedure for setting the stopping point of the sun protection element, for occultation or for closing is carried out after having brought, thanks to the motor, the element into a position that we want to define as a stopping point.
  • FIG. figure 7 A variant of this first embodiment is shown in FIG. figure 7 and differs in that it has three counting wheels 7a, 7b and 7c associated with notched cams 8a, 8b and 8c and core cams 10a, 10b and 10c. These three counting wheels mesh respectively with three intermediate wheels 6a, 6b and 6c.
  • the operation of this device is similar to the operation of the previously described device.
  • the three counting wheels 7a, 7b and 7c are distributed at 120 ° around the pinion 3.
  • the cutoff lever 5 'therefore comprises three fingers 11a, 11b and 11c and the zeroing lever 4' has three arms 4a, 4b and 4c at 120 °.
  • FIG. figure 8 Another variant of this first embodiment is shown in FIG. figure 8 and differs in that it has four counting wheels 7a, 7'a, 7b and 7'b. Indeed, on each of the two arms 4a and 4b of the cutoff lever are mounted two coaxial counting wheels 7a and 7'a meshing with an intermediate wheel 6a on the one hand and 7b and 7'b meshing with an intermediate wheel 6b on the other hand. These counting wheels are independent and each associated with a notched cam 8a, 8'a, 8b and 8'b on the one hand, and a core cam 10a, 10'a, 10b and 10'b on the other hand . Split elastic strips 14'a and 14'b constituting hammers act on each of the core cam 10a, 10'a, 10b and 10'b.
  • FIG. figure 9 A second embodiment of the device is shown in FIG. figure 9 , it differs from the previous embodiment in that the cutoff lever 20 and the zeroing lever 21 are hinged to each other and to the frame about an axis 22 eccentric relative to the drive gear 3.
  • the two levers have a shape in an arc.
  • the cut-off lever 20 acts at one of its ends on a switch 13 and has at its other end cut-off studs 23 and 24 cooperating with cams with notches 8a and 8b associated with counting wheels 7a and 7b and with heart cams 10a and 10b.
  • the zeroing lever 21 carries the counting wheels and the hammers cooperating with the heart cams.
  • the cutoff lever 20 is biased by resilient means into a position in which the cutoff pegs 23 and 24 are in contact with the notched cams.
  • the zeroing lever 21 is biased by elastic means in a position in which the counting wheels 7a and 7b mesh respectively with intermediate wheels 6a and 6b.

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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)
  • Photovoltaic Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Bipolar Transistors (AREA)
  • Handcart (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

Disclosed is an automatic stopping device comprising a mechanism for counting revolutions which acts upon a disconnecting lever (5) and is provided with two counting wheels (7a, 7b) that are located on a single plane and are driven at different speeds. The inventive device is characterized by the fact that it comprises a mechanism for resetting the counting mechanism which is provided with a means for disengaging the counting wheels and a resetting lever (4). The disconnecting lever (5) and the resetting lever (4) are movable relative to each other and relative to a fixed housing (1).

Description

La présente invention concerne un dispositif d'arrêt automatique pour l'entraînement d'un élément de protection solaire, d'occultation ou de fermeture. Elle concerne en particulier un dispositif selon le préambule de la revendication 1.The present invention relates to an automatic stopping device for driving a sun protection element, occultation or closure. It relates in particular to a device according to the preamble of claim 1.

Lorsqu'on équipe un élément de protection solaire, d'occultation ou de fermeture d'un actionneur électrique permettant de le mettre en mouvement par un simple appui sur un bouton, il apparaît nécessaire de prévoir des moyens permettant l'arrêt du mouvement de l'élément au moment où celui-ci arrive en fin de course.When equipped with a solar protection element, occultation or closure of an electric actuator to put it in motion at the touch of a button, it appears necessary to provide means to stop the movement of the element as it reaches the end of the race.

La détection de fin de course peut se faire par exemple grâce à un capteur pouvant consister en un simple interrupteur ouvrant le circuit d'alimentation de l'actionneur lorsque l'élément vient buter contre celui-ci.The end-of-stroke detection can be done for example by means of a sensor which can consist of a simple switch opening the supply circuit of the actuator when the element abuts against it.

Cette détection peut encore se faire grâce à un dispositif électronique ou mécanique détectant un couple mécanique résistant lorsque l'élément vient en fin de course contre une butée mécanique, et commandant alors l'ouverture du circuit électrique d'alimentation de l'actionneur.This detection can still be done through an electronic or mechanical device detecting a resistant mechanical torque when the element comes to the end of stroke against a mechanical stop, and then controlling the opening of the electrical supply circuit of the actuator.

Cependant, afin de ne pas solliciter en permanence les butées mécaniques de fin de course ou parce qu'il n'est pas possible d'installer de telles butées mécaniques ou de tels interrupteurs de fin de course, on ajoute parfois dans les actionneurs de ces éléments des dispositifs d'arrêt automatique pour la fin de course haute et/ou pour la fin de course basse.However, in order not to permanently solicit the end stops or because it it is not possible to install such mechanical stops or limit switches, the actuators of these elements sometimes add automatic shut-off devices for the upper limit switch and / or for the end of the stroke. low.

Du brevet FR 2 688 022 , on connaît un dispositif d'arrêt automatique comprenant deux mécanismes de comptage de tours constitués de roues de comptage coaxiales entraînées par des pignons et associées chacune à une came à encoche coopérant avec un doigt de coupure solidaire d'un levier de coupure commun, rappelé dans une position dans laquelle les doigts de coupure sont en contact avec les cames à encoche. Lorsque les encoches sont alignées, les doigts de coupure pénètrent dans celles-ci et le levier de coupure actionne un interrupteur ouvrant le circuit d'alimentation d'un moteur. Le dispositif comprend en outre deux mécanismes de remise à zéro respectivement associés aux deux mécanismes de comptage. Ils comportent principalement des moyens de débrayage des roues de comptage et un levier permettant de remettre les roues de comptages à zéro en agissant par des marteaux sur des cames coeur solidaires de celles-ci. Les roues de comptage, le levier de coupure et le levier de mise à zéro de chaque mécanisme de comptage sont pivotés dans un berceau commun articulé par rapport à un bâti fixe présentant des parties profilées destinées à coopérer avec les leviers de coupure et les leviers de mise à zéro lors du déplacement des berceaux.From the patent FR 2 688 022 , there is known an automatic stop device comprising two revolution counting mechanisms consist of coaxial counting wheels driven by pinions and each associated with a notched cam cooperating with a cutoff finger integral with a common cutoff lever, recalled in a position in which the cutting fingers are in contact with the notched cams. When the notches are aligned, the cutting fingers penetrate into them and the cutoff lever actuates a switch opening the supply circuit of an engine. The device further comprises two reset mechanisms respectively associated with the two counting mechanisms. They mainly comprise disengaging means counting wheels and a lever for resetting the counting wheels to zero by acting by hammers on integral core cams thereof. The counting wheels, the cutoff lever and the zeroing lever of each counting mechanism are pivoted in a common cradle articulated with respect to a fixed frame having profiled portions intended to cooperate with the cutoff levers and the levers of zeroing when moving cradles.

Les dispositifs d'arrêt automatique décrits dans les demandes FR 2 479 548 , FR 2 756 320 , EP 1 172 515 et WO 99/26262 présentent sensiblement la même architecture que le dispositif précédemment décrit. Les différentes roues de comptage d'un même mécanisme de comptage sont disposées en enfilade sur un même axe, associées à des cames à encoches et engrènent avec des pignons.Automatic shutdown devices described in the applications FR 2,479,548 , FR 2,756,320 , EP 1 172 515 and WO 99/26262 have substantially the same architecture as the previously described device. The different counting wheels of the same counting mechanism are arranged in a row on the same axis, associated with notched cams and mesh with sprockets.

On connaît du brevet US 4,307,269 , un dispositif d'interruption électrique entraîné par un arbre. Le dispositif comprend deux mécanismes d'interruption dont les roues et les cames sont disposées sur deux axes et sur un même plan. La mise à zéro de ce dispositif ne peut être réalisée qu'en le démontant.Patent is known US 4,307,269 , an electrical interruption device driven by a shaft. The device comprises two interruption mechanisms whose wheels and cams are arranged on two axes and on the same plane. Zeroing this device can only be done by dismounting it.

Du brevet US 5,924,949 , on connaît un dispositif de commande de moteur électrique comprenant deux mécanismes d'interruption du courant d'alimentation. Ce dispositif présente des mécanismes de mise à zéro compliqués. D'une part, la structure compliquée par les nombreuses pièces de ces mécanismes oblige à dévisser des pièces des mécanismes pour effectuer une mise à zéro et, d'autre part, des vibrations dues au fonctionnement peuvent provoquer le dévissage de ces pièces et modifier les positions réglées.From the patent US 5,924,949 there is known an electric motor control device comprising two mechanisms for interrupting the supply current. This device has complicated zeroing mechanisms. On the one hand, the structure complicated by the many parts of these mechanisms forces to unscrew parts of the mechanisms to perform a zeroing and, on the other hand, vibrations due to operation can cause the unscrewing of these parts and change the positions set.

Dans certains cas, et en particulier, dans le cas de l'automatisation du déplacement des lames d'un store vénitien, il est nécessaire d'avoir un dispositif d'arrêt automatique par comptage pour la seule fin de course basse, l'arrêt en fin de course haute étant facilement réalisé par la butée du store contre un interrupteur ouvrant le circuit d'alimentation du moteur.In some cases, and in particular, in the case of automating the movement of the blades of a Venetian blind, it is necessary to have a device automatic stop by counting for the only low end of stroke, the stop at the end of high stroke being easily achieved by the stop of the awning against a switch opening the motor supply circuit.

On peut donc utiliser pour remplir cette fonction un mécanisme semblable à ceux décrits précédemment.One can thus use to fulfill this function a mechanism similar to those described previously.

Cependant, ces mécanismes présentent l'inconvénient d'être encombrants, en particulier dans le sens de leur longueur et/ou d'être malaisés à régler.However, these mechanisms have the disadvantage of being bulky, especially in the sense of their length and / or being difficult to adjust.

Le but de l'invention est de réaliser un dispositif d'arrêt automatique palliant ces inconvénients et améliorant les dispositifs existants. En particulier, l'invention se propose de réaliser un dispositif d'arrêt automatique de faible encombrement dans le sens de sa longueur et dont l'architecture du mécanisme de mise à zéro est simple et assure la fiabilité du dispositif.The object of the invention is to provide an automatic stop device overcoming these disadvantages and improving the existing devices. In particular, the invention proposes to realize an automatic stop device of small size in the direction of its length and whose architecture of the zeroing mechanism is simple and ensures the reliability of the device.

Le dispositif d'arrêt automatique selon l'invention est caractérisé par la partie caractérisante de la revendication 1.The automatic stopping device according to the invention is characterized by the characterizing part of claim 1.

Les revendications dépendantes 2 à 8 définissent différents modes de réalisation de ce dispositif.Dependent claims 2 to 8 define different embodiments of this device.

Le dessin annexé représente, à titre d'exemples, deux modes de réalisation du dispositif d'arrêt automatique selon l'invention.The appended drawing shows, by way of example, two embodiments of the automatic stopping device according to the invention.

La figure 1 est une vue en coupe d'un premier mode de réalisation du dispositif d'arrêt automatique selon l'invention.The figure 1 is a sectional view of a first embodiment of the automatic stopping device according to the invention.

La figure 2 est une vue en coupe selon le plan II-II de la figure 1 de ce premier mode de réalisation du dispositif d'arrêt automatique.The figure 2 is a sectional view according to plane II-II of the figure 1 of this first embodiment of the automatic stop device.

Les figures 3 à 6 sont des vues schématiques de ce premier mode de réalisation du dispositif d'arrêt automatique représenté dans différentes phases de fonctionnement.The Figures 3 to 6 are schematic views of this first embodiment of the automatic stopping device shown in different phases of operation.

La figure 7 est une vue schématique d'une variante de ce premier mode de réalisation.The figure 7 is a schematic view of a variant of this first embodiment.

La figure 8 est une vue en coupe d'une autre variante de ce premier mode de réalisation.The figure 8 is a sectional view of another variant of this first embodiment.

La figure 9 est une vue schématique d'un deuxième mode de réalisation du dispositif d'arrêt automatique.The figure 9 is a schematic view of a second embodiment of the automatic shutdown device.

Le dispositif représenté aux figures 1 et 2 comprend un bâti 1 dans lequel est monté en liaison pivot un arbre 2 comportant un pignon 3. L'arbre 2 est destiné à être entraîné par le moteur d'entraînement d'un élément de protection solaire, d'occultation ou de fermeture, via un réducteur. Sur ce bâti 1 sont également montés en liaison pivot avec celui-ci autour de l'axe de l'arbre 2, un levier de mise à zéro 4 et un levier de coupure 5 pouvant être basculés manuellement. Deux roues intermédiaires 6a et 6b présentant un nombre de dents différent et engrenant avec le pignon 3, sont montées symétriquement par rapport à l'axe de l'arbre 2 et en liaison pivot sur le bâti 1.The device represented in Figures 1 and 2 comprises a frame 1 in which is mounted in pivot connection a shaft 2 comprising a pinion 3. The shaft 2 is intended to be driven by the drive motor of a sun protection element, occultation or closing, via a reducer. On this frame 1 are also mounted in pivot connection with it around the axis of the shaft 2, a zeroing lever 4 and a switching lever 5 can be manually tilted. Two intermediate wheels 6a and 6b having a different number of teeth and meshing with the pinion 3, are mounted symmetrically with respect to the axis of the shaft 2 and pivotally connected to the frame 1.

Aux extrémités 4a et 4b du levier 4, sont montées, en liaison pivot avec celui-ci, des roues de comptage 7a et 7b présentant un nombre de dents différent et engrenant avec les roues intermédiaires 6a et 6b. Les nombres de dents des roues 6a, 6b, 7a et 7b sont choisis de sorte que la roue 7a n'est pas entraînée à la même vitesse que la roue 7b. Chaque roue de comptage 7a et 7b est flanquée, d'un côté d'une came à encoche 8a, 8b consistant en une roue lisse présentant une encoche 9a, 9b sur sa circonférence, et de l'autre côté d'une came coeur 10a, 10b.At the ends 4a and 4b of the lever 4 are pivotally mounted thereon counter wheels 7a and 7b having a different number of teeth and meshing with the intermediate wheels 6a and 6b. The numbers of teeth of the wheels 6a, 6b, 7a and 7b are chosen so that the wheel 7a is not driven at the same speed as the wheel 7b. Each counting wheel 7a and 7b is flanked, on one side of a notched cam 8a, 8b consisting of a smooth wheel having a notch 9a, 9b on its circumference, and on the other side of a core cam 10a , 10b.

Le levier de coupure 5 est mobile autour de l'axe de l'arbre 2. Il est muni de deux doigts de coupure 11a et 11b solidaires de celui-ci et coopérant respectivement avec les cames à encoche 8a et 8b. Le levier de coupure présente à l'une de ces extrémités un bras 12 destiné à actionner un interrupteur 13 fixé sur le bâti 1.The cutoff lever 5 is movable about the axis of the shaft 2. It is provided with two cutting fingers 11a and 11b integral therewith and cooperating respectively with the notched cams 8a and 8b. The cutoff lever has at one of these ends an arm 12 intended to actuate a switch 13 fixed to the frame 1.

Le levier de mise à zéro est, lui aussi, mobile autour de l'axe de l'arbre 2. Il est muni de deux bras présentant des lamelles élastiques 14a et 14b constituant des marteaux destinés à agir respectivement sur chacune des cames coeur 10a et 10b.The zeroing lever is also movable about the axis of the shaft 2. It is provided with two arms having elastic strips 14a and 14b constituting hammers intended to act respectively on each of the core cams 10a and 10b.

Le levier de coupure 5 est rappelé par un moyen élastique non représenté dans une position de contact des doigts 11a et 11b avec les cames à encoche 8a et 8b. Le levier de mise à zéro 4 est quant à lui rappelé par un moyen élastique non représenté dans une position dans laquelle les roues de comptage 7a et 7b engrènent avec les roues intermédiaires 6a et 6b.The cutoff lever 5 is biased by an elastic means not shown in a contact position of the fingers 11a and 11b with the notched cams 8a and 8b. The zeroing lever 4 is for its part recalled by an elastic means not shown in a position in which the counting wheels 7a and 7b meshing with the intermediate wheels 6a and 6b.

Sur la figure 1, les doigts de coupure 11a et 11b sont représentés engagés dans les encoches 9a et 9b des cames à encoche. Ce qui signifie que le mécanisme est dans une position d'arrêt, le bras 12 du levier de coupure 5 agissant sur l'interrupteur 13 qui est branché en série avec l'un des enroulements du moteur et avec un interrupteur de commande d'un premier sens de rotation et qui ouvre, lorsqu'il est dans cette position, le circuit d'alimentation du moteur.On the figure 1 , the cutting fingers 11a and 11b are shown engaged in the notches 9a and 9b notched cams. This means that the mechanism is in a stop position, the arm 12 of the breaking lever 5 acting on the switch 13 which is connected in series with one of the windings of the motor and with a control switch of a first direction of rotation and which opens, when in this position, the motor supply circuit.

Comme représenté aux figures 3 à 6, lorsqu'on veut mettre à zéro le dispositif d'arrêt automatique, on agit manuellement sur le levier de coupure 5 de manière à l'éloigner, contre l'action du ressort de rappel, de la position dans laquelle les doigts de coupure sont en contact avec les roues à encoche. Le levier arrive alors en contact avec deux butées 15a et 15b réalisées de manière symétrique sur le levier de mise à zéro 4. Cette action de contact a pour conséquence, comme représenté à la figure 4, de faire basculer le levier de mise à zéro 4 contre l'action de son ressort de rappel et de provoquer le désengrènement des roues de comptage 7a et 7b des roues intermédiaires 6a et 6b.As represented in Figures 3 to 6 when the automatic stopping device is to be reset, the cut-off lever 5 is manually operated so as to move it away from the position of the cut-off fingers against the action of the return spring. in contact with notched wheels. The lever then comes into contact with two stops 15a and 15b made symmetrically on the zeroing lever 4. This contact action has the consequence, as shown in FIG. figure 4 , to tilt the reset lever 4 against the action of its return spring and disengage the counting wheels 7a and 7b of the intermediate wheels 6a and 6b.

Les roues de comptage sont alors soumises aux seules actions mécaniques de contact des marteaux 14a et 14b sur les cames coeur 10a et 10b. Elles se trouvent ainsi entraînées en rotation jusqu'aux positions, représentées à la figure 5, dans lesquelles les actions des marteaux sur les cames coeur ont des directions passant par l'axe des roues de comptage. Le levier de coupure 5 est alors relâché. Comme représenté à la figure 6, le levier de mise à zéro revient, sous l'effet de son ressort de rappel, dans une position d'engrènement des roues de comptage avec les roues intermédiaires et le levier de coupure revient, sous l'effet de son ressort de rappel, dans une position de contact des doigts de coupure avec les roues à encoche, dans les encoches. Le bras 12 du levier de coupure agit alors, comme représenté à la figure 1, sur l'interrupteur 13.The counting wheels are then subject to the only mechanical actions of the hammers 14a and 14b on the core cams 10a and 10b. They are thus driven in rotation to the positions represented at figure 5 , in which the actions of the hammers on the heart cams have directions passing through the axis of the counting wheels. The cutoff lever 5 is then released. As represented in figure 6 , the zeroing lever returns, under the effect of its return spring, in a meshing position of the counting wheels with the intermediate wheels and the cutoff lever returns, under the effect of its return spring, in a position of contact of the cutting fingers with the notched wheels, in the notches. The arm 12 of the cutoff lever then acts as shown in FIG. figure 1 , on the switch 13.

Cette procédure, particulièrement simple, de réglage de point d'arrêt de l'élément de protection solaire, d'occultation ou de fermeture est effectuée après avoir amené, grâce au moteur, l'élément dans une position que l'on veut définir comme étant un point d'arrêt.This particularly simple procedure for setting the stopping point of the sun protection element, for occultation or for closing is carried out after having brought, thanks to the motor, the element into a position that we want to define as a stopping point.

Pendant toute la course de l'élément de protection solaire, d'occultation ou de fermeture, au moins l'un des deux doigts de coupure vient en appui sur la partie circulaire de l'une des roues à encoche si bien que l'interrupteur 13 non actionné est fermé et permet l'alimentation du moteur de manière à le faire tourner dans le premier sens. Ce n'est qu'en arrivant en fin de course, lorsque le moteur est alimenté pour tourner dans le premier sens, que l'interrupteur 13 est amené en position « ouvert ». Dès lors, l'alimentation du moteur pour le faire tourner dans le premier sens est impossible. L'élément ne peut alors être actionné que dans l'autre sens.During the entire stroke of the sun protection element, occultation or closure, at least one of the two cutting fingers bears on the circular portion of one of the notch wheels so that the switch 13 not actuated is closed and allows the power of the motor so as to rotate in the first direction. Only when arriving at the end of the race, when the motor is powered to turn in the first direction, the switch 13 is brought to the "open" position. Therefore, the power of the engine to turn it in the first direction is impossible. The element can only be activated in the opposite direction.

Une variante de ce premier mode de réalisation est représentée à la figure 7 et diffère en ce qu'elle présente trois roues de comptage 7a, 7b et 7c associées à des cames à encoche 8a, 8b et 8c et à des cames coeur 10a, 10b et 10c. Ces trois roues de comptage engrènent respectivement avec trois roues intermédiaires 6a, 6b et 6c. Le fonctionnement de ce dispositif est similaire au fonctionnement du dispositif précédemment décrit. Les trois roues de comptages 7a, 7b et 7c sont réparties à 120° autour du pignon 3. Le levier de coupure 5' comprend par conséquent trois doigts 11a 11b et 11c et le levier de mise à zéro 4' présente trois bras 4a, 4b et 4c à 120°.A variant of this first embodiment is shown in FIG. figure 7 and differs in that it has three counting wheels 7a, 7b and 7c associated with notched cams 8a, 8b and 8c and core cams 10a, 10b and 10c. These three counting wheels mesh respectively with three intermediate wheels 6a, 6b and 6c. The operation of this device is similar to the operation of the previously described device. The three counting wheels 7a, 7b and 7c are distributed at 120 ° around the pinion 3. The cutoff lever 5 'therefore comprises three fingers 11a, 11b and 11c and the zeroing lever 4' has three arms 4a, 4b and 4c at 120 °.

Une autre variante de ce premier mode de réalisation est représentée à la figure 8 et diffère en ce qu'elle présente quatre roues de comptage 7a, 7'a, 7b et 7'b. En effet, sur chacun des deux bras 4a et 4b du levier de coupure, sont montées deux roues de comptage coaxiales 7a et 7'a engrenant avec une roue intermédiaire 6a d'une part et 7b et 7'b engrenant avec une roue intermédiaire 6b d'autre part. Ces roues de comptage sont indépendantes et chacune associée à une came à encoche 8a, 8'a, 8b et 8'b d'une part, et à une came coeur 10a, 10'a, 10b et 10'b d'autre part. Des lamelles élastiques dédoublées 14'a et 14'b constituant des marteaux agissent sur chacune des cames coeur 10a, 10'a, 10b et 10'b.Another variant of this first embodiment is shown in FIG. figure 8 and differs in that it has four counting wheels 7a, 7'a, 7b and 7'b. Indeed, on each of the two arms 4a and 4b of the cutoff lever are mounted two coaxial counting wheels 7a and 7'a meshing with an intermediate wheel 6a on the one hand and 7b and 7'b meshing with an intermediate wheel 6b on the other hand. These counting wheels are independent and each associated with a notched cam 8a, 8'a, 8b and 8'b on the one hand, and a core cam 10a, 10'a, 10b and 10'b on the other hand . Split elastic strips 14'a and 14'b constituting hammers act on each of the core cam 10a, 10'a, 10b and 10'b.

Un deuxième mode de réalisation du dispositif est représenté à la figure 9, il diffère du mode de réalisation précédent en ce que le levier de coupure 20 et le levier de mise à zéro 21 sont articulés entre eux et par rapport au bâti autour d'un axe 22 excentré par rapport au pignon d'entraînement 3. Les deux leviers ont une forme en arc de cercle. Le levier de coupure 20 agit à l'une de ses extrémités sur un interrupteur 13 et comporte à son autre extrémité des pions de coupure 23 et 24 coopérant avec des cames à encoche 8a et 8b associées à des roues de comptages 7a et 7b et à des cames coeur 10a et 10b. Le levier de mise à zéro 21 porte les roues de comptage et les marteaux coopérant avec les cames coeur.A second embodiment of the device is shown in FIG. figure 9 , it differs from the previous embodiment in that the cutoff lever 20 and the zeroing lever 21 are hinged to each other and to the frame about an axis 22 eccentric relative to the drive gear 3. The two levers have a shape in an arc. The cut-off lever 20 acts at one of its ends on a switch 13 and has at its other end cut-off studs 23 and 24 cooperating with cams with notches 8a and 8b associated with counting wheels 7a and 7b and with heart cams 10a and 10b. The zeroing lever 21 carries the counting wheels and the hammers cooperating with the heart cams.

Le levier de coupure 20 est rappelé par un moyen élastique dans une position dans laquelle les pions de coupures 23 et 24 sont en contact avec les cames à encoche.The cutoff lever 20 is biased by resilient means into a position in which the cutoff pegs 23 and 24 are in contact with the notched cams.

Le levier de mise à zéro 21 est rappelé par un moyen élastique dans une position dans laquelle les roues de comptages 7a et 7b engrènent respectivement avec des roues intermédiaires 6a et 6b.The zeroing lever 21 is biased by elastic means in a position in which the counting wheels 7a and 7b mesh respectively with intermediate wheels 6a and 6b.

Lorsqu'on écarte le levier de coupure 20 de sa position de rappel, un doigt 26 solidaire du levier de mise à zéro 21 se déplace dans une rainure 25 réalisée dans le levier de coupure 20. Ainsi, dès que le doigt 26 arrive au fond de la rainure 25, le déplacement du levier de coupure 20 entraîne le déplacement du levier de mise à zéro 21 et, par conséquent, le désengrènement des roues de comptage et des roues intermédiaires permettant la mise à zéro du dispositif.When the cutoff lever 20 is moved away from its return position, a finger 26 secured to the zeroing lever 21 moves in a groove 25 made in the cutoff lever 20. Thus, as soon as the finger 26 arrives at the bottom of the groove 25, the displacement of the cutoff lever 20 causes the displacement of the zeroing lever 21 and, consequently, the disengagement of the counting wheels and the intermediate wheels allowing the device to be zeroed.

Claims (8)

  1. Automatic stopping device for a driving motor of an element for solar protection, privacy or closure, comprising at least one mechanism for counting the number of revolutions, comprising counting wheels (7a, 7b; 7a, 7b, 7c; 7a, 7'a, 7b, 7'b) mounted on at least two axles and lodged approximately in the same plane, and being driven with different speeds when the element for solar protection, privacy or closure is moving, and taking a determined position in which the energy supply of the motor for displacing the element in one direction is prevented, every one of the counting wheels being associated to an indented cam disk (8a, 8b; 8a, 8b, 8c; 8a, 8'a, 8b, 8'b) coacting with a disconnecting cog (11a, 11b; 11a, 11b, 11c) of a common disconnecting lever (5; 5'; 20) that is retracted by an elastic means into a position where the cogs are in contact with the indented cam disk in such a manner that, when the indents (9a, 9b) are in a determined position, the disconnecting cogs enter into the indents, and a switch (13) is actuated by the disconnecting lever (5; 5'; 20),
    characterised in that the device comprises a mechanism for reset to zero of the counting mechanism(s) comprising at least a means for disengaging the counting wheels and a reset lever (4; 4'; 21) equipped with hammers (14a, 14b; 14'a, 14'b) acting on heart cams (10a, 10b; 10a, 10b, 10c; 10a, 10'a; 10b, 10'b) associated respectively to each of the counting wheels, the disconnecting lever (5; 5'; 20) and the reset lever (4; 4'; 21) being movable with respect to each other and with respect to a fixed framework (1).
  2. Automatic stopping device according to claim 1, characterised in that the disconnecting lever (5; 5'; 20) acts on the reset lever (4; 4'; 21) in order to disengage the counting wheels (8a, 8b; 8a, 8b, 8c; 8a, 8'a, 8b, 8'b) when the disconnecting lever is removed out of the position in which it is retracted by the elastic means.
  3. Automatic stopping device according to claim 1 or 2, characterised in that the disconnecting lever (5; 5'; 20) and the reset lever (4; 4'; 21) are articulated with respect to each other and to the framework (1) about the same axis.
  4. Automatic stopping device according to claim 3, characterised in that the disconnecting lever (5; 5'; 20) and the reset lever (4; 4'; 21) are articulated on the framework (1) around the axle of a driving pinion (3).
  5. Automatic stopping device according to any one of the preceding claims, characterised in that the counting wheels are lodged around the pinion (3) and driven by the latter.
  6. Automatic stopping device according to claim 5, characterised in that the counting wheels are driven by the pinion (3) via intermediate wheels (6a, 6b; 6a, 6b, 6c; 6a, 6'a, 6b, 6'b).
  7. Automatic stopping device according to claim 6, characterised in that the intermediate wheels have different numbers of teeth.
  8. Automatic stopping device according to any one of the preceding claims, characterised in that the counting wheels have different numbers of teeth.
EP03766555A 2002-07-29 2003-07-17 Device for controlling a motorized shutter Expired - Lifetime EP1549818B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0209616A FR2842940B1 (en) 2002-07-29 2002-07-29 AUTOMATIC STOP DEVICE FOR DRIVING A SOLAR PROTECTION, OCCULTATION OR CLOSURE ELEMENT
FR0209616 2002-07-29
PCT/IB2003/003256 WO2004013442A1 (en) 2002-07-29 2003-07-17 Device for controlling a motorized shutter

Publications (2)

Publication Number Publication Date
EP1549818A1 EP1549818A1 (en) 2005-07-06
EP1549818B1 true EP1549818B1 (en) 2010-04-14

Family

ID=30011576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766555A Expired - Lifetime EP1549818B1 (en) 2002-07-29 2003-07-17 Device for controlling a motorized shutter

Country Status (7)

Country Link
EP (1) EP1549818B1 (en)
AT (1) ATE464453T1 (en)
AU (1) AU2003248240A1 (en)
DE (1) DE60332135D1 (en)
ES (1) ES2239930T1 (en)
FR (1) FR2842940B1 (en)
WO (1) WO2004013442A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2023498A1 (en) * 1970-05-13 1971-11-25 Sel Program switch
DE2904681C3 (en) * 1979-02-08 1981-09-03 Mannesmann AG, 4000 Düsseldorf Switching device for actuating switching contacts
FR2455695A1 (en) * 1979-05-02 1980-11-28 Carpano & Pons CONTROL DEVICE FOR ELECTRIC MOTOR-REDUCER
DE3011706C2 (en) * 1980-03-26 1982-04-15 Elero Antriebs- und Sonnenschutztechnik GmbH & Co KG, 7312 Kirchheim Shaft limit switch
FR2688022B1 (en) 1992-02-28 1994-05-20 Somfy AUTOMATIC STOPPING DEVICE FOR THE ELECTRIC MOTOR DRIVE OF DOOR, SHUTTER, STORE OR THE LIKE.
FR2756320A1 (en) 1996-11-25 1998-05-29 Deprat Jean Sa Drive mechanism and end-of-course detector for motor driven roller blinds
DE19750210C2 (en) 1997-11-13 2000-03-16 Gross Hans Limit switch device
US5924949A (en) * 1997-12-05 1999-07-20 Chain-Tech International Corporation Apparatus for driving a roller-shutter door
DE10033550A1 (en) 2000-07-11 2002-01-24 Geiger Gerhard Gmbh & Co Endlagenabschaltvorrichtung

Also Published As

Publication number Publication date
ES2239930T1 (en) 2005-10-16
FR2842940B1 (en) 2005-02-04
EP1549818A1 (en) 2005-07-06
FR2842940A1 (en) 2004-01-30
AU2003248240A1 (en) 2004-02-23
DE60332135D1 (en) 2010-05-27
ATE464453T1 (en) 2010-04-15
WO2004013442A1 (en) 2004-02-12

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