EP1549818A1 - Device for controlling a motorized shutter - Google Patents

Device for controlling a motorized shutter

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Publication number
EP1549818A1
EP1549818A1 EP03766555A EP03766555A EP1549818A1 EP 1549818 A1 EP1549818 A1 EP 1549818A1 EP 03766555 A EP03766555 A EP 03766555A EP 03766555 A EP03766555 A EP 03766555A EP 1549818 A1 EP1549818 A1 EP 1549818A1
Authority
EP
European Patent Office
Prior art keywords
lever
counting
wheels
automatic stop
cut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03766555A
Other languages
German (de)
French (fr)
Other versions
EP1549818B1 (en
Inventor
Michel Roger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somfy SA
Original Assignee
Somfy SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Somfy SA filed Critical Somfy SA
Publication of EP1549818A1 publication Critical patent/EP1549818A1/en
Application granted granted Critical
Publication of EP1549818B1 publication Critical patent/EP1549818B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—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 stop device for driving a sun protection element, concealment 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 may consist of a simple switch opening the supply circuit of the actuator when the element abuts against it.
  • This detection can also be done by an electronic or mechanical device detecting a resistant mechanical torque when the element comes to the end of its travel against a mechanical stop, and then controlling the opening of the electrical supply circuit of the actuator.
  • Patent FR 2 688 022 discloses an automatic stop device comprising two revolution counting mechanisms constituted by coaxial counting wheels driven by pinions and each associated with a notched cam cooperating with a cutting finger integral with a common cutting lever, returned to 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 cutting lever actuates a switch opening the supply circuit of a motor.
  • the device further comprises two reset mechanisms respectively associated with the two counting mechanisms. They mainly comprise means for disengaging the counting wheels and a lever making it possible to reset the counting wheels to zero by acting by hammers on cams integral with the latter.
  • the counting wheels, the cut-off lever and the reset lever of each counting mechanism are pivoted in a common cradle articulated with respect to a fixed frame having profiled parts intended to cooperate with the cut-off levers and the levers of reset when moving the cradles.
  • the automatic shutdown devices described in applications FR 2 479 548, FR 2 756 320, EP 1 172 515 and WO 99/26262 have substantially the same architecture as the device previously described.
  • 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 pinions.
  • an electric motor control device comprising two mechanisms for interrupting the supply current.
  • This device has complicated zero-setting mechanisms.
  • the structure complicated by the numerous parts of these mechanisms means that parts of the mechanisms have to be unscrewed in order to reset them and, on the other hand, vibrations due to operation can cause these parts to be unscrewed and modify the set positions.
  • the object of the invention is to provide an automatic stop device overcoming these drawbacks and improving the existing devices.
  • the invention proposes to provide a device for automatic shutdown of small dimensions in the direction of its length and whose architecture of the zeroing mechanism is simple and ensures the reliability of the device.
  • the automatic stop device according to the invention is characterized by the characterizing part of claim 1.
  • Figure 1 is a sectional view of a first embodiment of the automatic stop device 1 according to the invention.
  • Figure 2 is a sectional view along the plane II-II of 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 stop device shown in different operating phases.
  • Figure 7 is a schematic view of a variant of this first embodiment.
  • Figure 8 is a sectional view of another variant of this first embodiment.
  • Figure 9 is a schematic view of a second embodiment of the automatic stop device.
  • the device represented in FIGS. 1 and 2 comprises a frame 1 in which a shaft 2 comprising a pinion 3 is mounted in pivot connection.
  • 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 the latter around the axis of the shaft 2, a zeroing lever 4 and a cut-off lever 5 can be tilted manually.
  • 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 in pivot connection on the frame 1.
  • counting 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 heart cam 10a , 10b.
  • the cutting lever 5 is movable around the axis of the shaft 2. It is provided with two cutting fingers 11a and 11b integral with the latter and cooperating respectively with the notched cams 8a and 8b.
  • the cut-off lever has at one of these ends an arm 12 intended to actuate a switch 13 fixed on the frame 1.
  • the zeroing lever is also movable around 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 heart cams 10a and 10b.
  • the cut-off lever 5 is returned by an elastic means not shown in a position of contact of the fingers 11a and 11b with the notched cams 8a and 8b.
  • the zeroing lever 4 is in turn recalled by an elastic means not shown in a position in which the counting wheels 7a and 7b mesh with the intermediate wheels 6a and 6b.
  • FIG. 1 the cutting fingers 11a and 11b are shown engaged in the notches 9a and 9b of the notched cams.
  • the mechanism is in a stopped position, the arm 12 of the cut-off lever 5 acting on the switch 13 which is connected in series with one of the motor windings and with a switch for controlling a first direction of rotation and which opens, when in this position, the motor supply circuit.
  • the cut-out lever 5 is manually operated so as to move it, against the action of the return spring, from the position in which the cutting fingers are in contact with the notched wheels.
  • the lever then comes into contact with two stops 15a and 15b produced symmetrically on the zeroing lever 4.
  • This contact action has the consequence, as shown in FIG. 4, of tilting the zeroing lever 4 against the action of its return spring and of cause the counting wheels 7a and 7b to disengage from the intermediate wheels 6a and 6b.
  • the counting wheels are then subjected only to the mechanical contact actions of the hammers 14a and 14b on the heart cams 10a and 10b. They are thus driven in rotation to the positions, shown in FIG. 5, in which the actions of the hammers on the heart cams have directions passing through the axis of the counting wheels.
  • the cut-off lever 5 is then released. As shown in FIG. 6, the zeroing lever returns, under the effect of its return spring, to a position of meshing of the counting wheels with the intermediate wheels and the cut-off 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 cut-off lever then acts, as shown in FIG. 1, on the switch 13.
  • This particularly simple procedure for adjusting the stopping point of the sun protection element, concealment or closing is carried out after having brought the element, through the motor, into a position that we want to define as a breakpoint.
  • FIG. 7 A variant of this first embodiment is shown in FIG. 7 and differs in that it has three counting wheels 7a, 7b and 7c associated with notched cams 8a, 8b and 8c and with heart 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 device described above.
  • the three counting wheels 7a, 7b and 7c are distributed at 120 ° around the pinion 3.
  • the cut-off lever 5 ' consequently includes three fingers 11a, 11b and 11e and the zeroing lever 4' has three arms 4a, 4b and 4c at 120 °.
  • Another variant of this first embodiment is shown in FIG.
  • a second embodiment of the device is shown in Figure 9, it differs from the previous embodiment in that the cut-off lever 20 and the reset lever 21 are hinged together and relative to the frame around a axis 22 offset from the drive pinion 3.
  • the two levers have an arc shape.
  • the cut-off lever 20 acts at one of its ends on a switch 13 and has at its other end cut-off pins 23 and 24 cooperating with notched cams 8a and 8b associated with counting wheels 7a and 7b and with heart cams 10a and 10b.
  • the reset lever 21 carries the counting wheels and the hammers cooperating with the heart cams.
  • the cut-off lever 20 is returned by elastic means to a position in which the cut-off pins 23 and 24 are in contact with the notched cams.
  • the zeroing lever 21 is returned by elastic means to a position in which the counting wheels 7a and 7b mesh respectively with intermediate wheels 6a and 6b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Handcart (AREA)
  • Exposure Control For Cameras (AREA)
  • Photovoltaic Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Bipolar Transistors (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

Dispositif de commande de store motorisé Motorized blind control device
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 stop device for driving a sun protection element, concealment 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 a solar protection, concealment or closing element is fitted with an electric actuator enabling it to be set in motion by a simple press of a button, it appears necessary to provide means allowing the movement of the l element when 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 may 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 also be done by an electronic or mechanical device detecting a resistant mechanical torque when the element comes to the end of its travel 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 stress the mechanical end-of-travel stops or because it it is not possible to install such mechanical stops or limit switches, sometimes automatic actuators are added to the actuators of these elements for the upper limit switch and / or for the limit switch 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 cœur 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 pivotes 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. 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.Patent FR 2 688 022 discloses an automatic stop device comprising two revolution counting mechanisms constituted by coaxial counting wheels driven by pinions and each associated with a notched cam cooperating with a cutting finger integral with a common cutting lever, returned to 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 cutting lever actuates a switch opening the supply circuit of a motor. The device further comprises two reset mechanisms respectively associated with the two counting mechanisms. They mainly comprise means for disengaging the counting wheels and a lever making it possible to reset the counting wheels to zero by acting by hammers on cams integral with the latter. The counting wheels, the cut-off lever and the reset lever of each counting mechanism are pivoted in a common cradle articulated with respect to a fixed frame having profiled parts intended to cooperate with the cut-off levers and the levers of reset when moving the cradles. The automatic shutdown devices described in applications FR 2 479 548, FR 2 756 320, EP 1 172 515 and WO 99/26262 have substantially the same architecture as the device previously described. 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 pinions.
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.We know from US Pat. No. 4,307,269, an electrical interruption device driven by a shaft. The device comprises two interruption mechanisms, the wheels and the cams of which are arranged on two axes and on the same plane. Resetting this device can only be achieved by dismantling 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 US patent 5,924,949, an electric motor control device is known comprising two mechanisms for interrupting the supply current. This device has complicated zero-setting mechanisms. On the one hand, the structure complicated by the numerous parts of these mechanisms means that parts of the mechanisms have to be unscrewed in order to reset them and, on the other hand, vibrations due to operation can cause these parts to be unscrewed and modify the set positions.
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 the automation of the movement of the slats of a Venetian blind, it is necessary to have a device automatic stop by counting for the only low end of travel, the high end of travel being easily achieved by the blind stop against a switch opening the motor supply circuit.
On peut donc utiliser pour remplir cette fonction un mécanisme semblable à ceux décrits précédemment.A mechanism similar to those described above can therefore be used to fulfill this function.
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, in particular in the direction of their length and / or of 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 drawbacks and improving the existing devices. In particular, the invention proposes to provide a device for automatic shutdown of small dimensions 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 stop 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. Le dessin annexé représente, à titre d'exemples, deux modes de réalisation du dispositif d' arrêt automatique selon l'invention.The dependent claims 2 to 8 define different embodiments of this device. The accompanying drawing shows, by way of example, two embodiments of the automatic stop 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 1' invention.Figure 1 is a sectional view of a first embodiment of the automatic stop device 1 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.Figure 2 is a sectional view along the plane II-II of 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 .Figures 3 to 6 are schematic views of this first embodiment of the automatic stop device shown in different operating phases.
La figure 7 est une vue schématique d'une variante de ce premier mode de réalisation.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.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.Figure 9 is a schematic view of a second embodiment of the automatic stop 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 FIGS. 1 and 2 comprises a frame 1 in which a shaft 2 comprising a pinion 3 is mounted in pivot connection. 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 the latter around the axis of the shaft 2, a zeroing lever 4 and a cut-off lever 5 can be tilted manually. 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 in pivot connection on 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 cœur 10a, 10b.At the ends 4a and 4b of the lever 4, there are mounted, in pivot connection with the latter, counting 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 heart 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 lia 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. 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 cœur 10a et 10b.The cutting lever 5 is movable around the axis of the shaft 2. It is provided with two cutting fingers 11a and 11b integral with the latter and cooperating respectively with the notched cams 8a and 8b. The cut-off lever has at one of these ends an arm 12 intended to actuate a switch 13 fixed on the frame 1. The zeroing lever is also movable around 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 heart cams 10a and 10b.
Le levier de coupure 5 est rappelé par un moyen élastique non représenté dans une position de contact des doigts lia 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 cut-off lever 5 is returned by an elastic means not shown in a position of contact of the fingers 11a and 11b with the notched cams 8a and 8b. The zeroing lever 4 is in turn recalled by an elastic means not shown in a position in which the counting wheels 7a and 7b mesh with the intermediate wheels 6a and 6b.
Sur la figure 1, les doigts de coupure lia 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.In FIG. 1, the cutting fingers 11a and 11b are shown engaged in the notches 9a and 9b of the notched cams. This means that the mechanism is in a stopped position, the arm 12 of the cut-off lever 5 acting on the switch 13 which is connected in series with one of the motor windings and with a switch for controlling 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 shown in FIGS. 3 to 6, when the automatic stop device is to be zeroed, the cut-out lever 5 is manually operated so as to move it, against the action of the return spring, from the position in which the cutting fingers are in contact with the notched wheels. The lever then comes into contact with two stops 15a and 15b produced symmetrically on the zeroing lever 4. This contact action has the consequence, as shown in FIG. 4, of tilting the zeroing lever 4 against the action of its return spring and of cause the counting wheels 7a and 7b to disengage from 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 cœur 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 cœur 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 subjected only to the mechanical contact actions of the hammers 14a and 14b on the heart cams 10a and 10b. They are thus driven in rotation to the positions, shown in FIG. 5, in which the actions of the hammers on the heart cams have directions passing through the axis of the counting wheels. The cut-off lever 5 is then released. As shown in FIG. 6, the zeroing lever returns, under the effect of its return spring, to a position of meshing of the counting wheels with the intermediate wheels and the cut-off 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 cut-off lever then acts, as shown in FIG. 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 adjusting the stopping point of the sun protection element, concealment or closing is carried out after having brought the element, through the motor, into a position that we want to define as a breakpoint.
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 travel of the sun protection, concealment or closing element, at least one of the two cutting fingers comes to bear on the circular part of one of the notched wheels so that the switch 13 not actuated is closed and allows the supply of the motor so as to rotate it in the first direction. It is only when arriving at the end of the travel, when the motor is powered to turn in the first direction, that the switch 13 is brought to the "open" position. Therefore, it is impossible to supply the motor to turn it in the first direction. The element can only be operated in the other 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 cœur 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 lia, 11b et lie et le levier de mise à zéro 4' présente trois bras 4a, 4b et 4c à 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 cœur 10a, 10' a, 10b et 10' b d'autre part. Des lamelles élastiques dédoublées 1 'a et 14 'b constituant des marteaux agissent sur chacune des cames cœur 10a, 10' a, 10b et 10'b.A variant of this first embodiment is shown in FIG. 7 and differs in that it has three counting wheels 7a, 7b and 7c associated with notched cams 8a, 8b and 8c and with heart 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 device described above. The three counting wheels 7a, 7b and 7c are distributed at 120 ° around the pinion 3. The cut-off lever 5 'consequently includes three fingers 11a, 11b and 11e and the zeroing lever 4' has three arms 4a, 4b and 4c at 120 °. Another variant of this first embodiment is shown in FIG. 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 cut-off 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 heart cam 10a, 10' a, 10b and 10 'b on the other hand . Split elastic strips 1 'a and 14' b constituting hammers act on each of the heart cams 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 cœur 10a et 10b. Le levier de mise à zéro 21 porte les roues de comptage et les marteaux coopérant avec les cames cœur. 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 .A second embodiment of the device is shown in Figure 9, it differs from the previous embodiment in that the cut-off lever 20 and the reset lever 21 are hinged together and relative to the frame around a axis 22 offset from the drive pinion 3. The two levers have an arc shape. The cut-off lever 20 acts at one of its ends on a switch 13 and has at its other end cut-off pins 23 and 24 cooperating with notched cams 8a and 8b associated with counting wheels 7a and 7b and with heart cams 10a and 10b. The reset lever 21 carries the counting wheels and the hammers cooperating with the heart cams. The cut-off lever 20 is returned by elastic means to a position in which the cut-off pins 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 returned by elastic means to 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 cut-off lever 20 is moved away from its return position, a finger 26 secured to the reset lever 21 moves in a groove 25 made in the cut-off lever 20. Thus, as soon as the finger 26 reaches the bottom of the groove 25, the displacement of the cut-off lever 20 causes the displacement of the reset lever 21 and, consequently, the disengagement of the counting wheels and of the intermediate wheels allowing the device to be zeroed.

Claims

Revendicationsclaims
Dispositif d'arrêt automatique d'un moteur d'entraînement d'un élément de protection solaire, d'occultation ou de fermeture, comprenant au moins un mécanisme de comptage de tours, comprenant des roues de comptage (7a, 7b ; 7a, 7b, 7c ; 7a, 7' a, 7b, 7'b) disposées sur au moins deux axes, situées sensiblement sur un même plan, entraînées à des vitesses différentes lorsque l'élément de protection solaire, d'occultation ou de fermeture est en mouvement et présentant une position déterminée interdisant l'alimentation du moteur pour le déplacer dans un sens, les roues de comptage étant associées chacune à une came à encoche (8a, 8b ; 8a, 8b, 8c ; 8a, 8'a, 8b, 8'b) coopérant avec un doigt de coupure (lia, 11b ; lia, 11b, lie) solidaire d'un levier de coupureDevice for automatically stopping a motor for driving a sun protection, blackout or closing element, comprising at least one revolution counting mechanism, comprising counting wheels (7a, 7b; 7a, 7b , 7c; 7a, 7 'a, 7b, 7'b) arranged on at least two axes, located substantially on the same plane, driven at different speeds when the sun protection, screening or closing element is in movement and having a determined position preventing the motor from being fed to move it in one direction, the counting wheels each being associated with a notched cam (8a, 8b; 8a, 8b, 8c; 8a, 8'a, 8b, 8'b) cooperating with a cutting finger (lia, 11b; lia, 11b, lie) secured to a cutting lever
(5 ; 5' ; 20) commun rappelé par un moyen élastique dans une position de contact des doigts avec les cames à encoche de telle manière que, lorsque les encoches (9a, 9b) sont dans une position déterminée, les doigts de coupure pénètrent dans les encoches et un interrupteur(5; 5 '; 20) common returned by an elastic means in a position of contact of the fingers with the notched cams so that, when the notches (9a, 9b) are in a determined position, the cutting fingers penetrate in the notches and a switch
(13) est actionné par le levier de coupure (5 ; 5' ; 20) , caractérisé en ce que le dispositif comprend un mécanisme de mise à zéro du ou des mécanismes de comptage comprenant essentiellement un moyen de désengrènement des roues de comptage et un levier de mise à zéro (4 ; 4' ; 21) muni de marteaux (14a, 14b ; 14' a, 14'b) agissant sur des cames cœur (10a, 10b ; 10a, 10b, 10c ; 10a, 10' a, 10b, 10'b) associées respectivement à chacune des roues de comptage, le levier de coupure (5 ; 5' ; 20) et le levier de mise à zéro (4, 4', 21) étant mobiles l'un par rapport à l'autre et par rapport à un bâti fixe (1) .(13) is actuated by the cut-off lever (5; 5 '; 20), characterized in that the device comprises a mechanism for resetting the counting mechanism or mechanisms essentially comprising a means for disengaging the counting wheels and a zeroing lever (4; 4 '; 21) provided 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 with each of the counting wheels, the cut-off lever (5; 5'; 20) and the lever zero setting (4, 4 ', 21) being movable relative to each other and relative to a fixed frame (1).
Dispositif d'arrêt automatique selon la revendication 1, caractérisé en ce que le levier de coupure (5 ; 5' ; 20) agit sur le levier de mise à zéro (4, 4', 21) pour désengrener les roues de comptage (8a, 8b ; 8a, 8b, 8c ; 8a, 8' a, 8b, 8'b) lorsqu'on écarte le levier de coupure de la position dans laquelle il est rappelé par le moyen élastique.Automatic stop device according to claim 1, characterized in that the cut-off lever (5; 5 '; 20) acts on the reset lever (4, 4', 21) to disengage the counting wheels (8a , 8b; 8a, 8b, 8c; 8a, 8 'a, 8b, 8'b) when the cutting lever is moved away from the position in which it is returned by the elastic means.
Dispositif d'arrêt automatique selon la revendication 1 ou 2, caractérisé en ce que le levier de coupure (5 ; 5' ; 20) et le levier de mise à zéro (4 ; 4' ; 21) sont articulés entre-eux et sur le bâti (1) autour d'un même axe.Automatic stop device according to claim 1 or 2, characterized in that the cut-off lever (5; 5 '; 20) and the reset lever (4; 4'; 21) are hinged together and on the frame (1) around the same axis.
Dispositif d'arrêt automatique selon la revendication 3, caractérisé en ce que le levier de coupure (5 ; 5' ; 20) et le levier de mise à zéro (4 ; 4' ; 21) sont articulés sur le bâti (1) autour de l'axe d'un pignon d'entraînement (3).Automatic stop device according to claim 3, characterized in that the cut-off lever (5; 5 '; 20) and the reset lever (4; 4'; 21) are articulated on the frame (1) around the axis of a drive pinion (3).
Dispositif d'arrêt automatique selon l'une des revendications précédentes, caractérisé en ce que les roues de comptage sont situées autour du pignon (3) et entraînées par celui-ci.Automatic stop device according to one of the preceding claims, characterized in that the counting wheels are located around and driven by the pinion (3).
Dispositif d'arrêt automatique selon la revendication 5, caractérisé en ce que les roues de comptage sont entraînées par le pignon (3) via des roues intermédiaires (6a, 6b ; 6a, 6b, 6c ; 6a, 6'a, 6b, 6'b) .Automatic stop device according to claim 5, characterized 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).
Dispositif d'arrêt automatique selon la revendication 6, caractérisé en ce que les roues intermédiaires ont des nombres de dents différents .Automatic stop device according to claim 6, characterized in that the intermediate wheels have different numbers of teeth.
Dispositif d'arrêt automatique selon l'une des revendications précédentes, caractérisé en ce que les roues de comptage ont des nombres de dents différents . Automatic stop device according to one of the preceding claims, characterized 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
FR0209616 2002-07-29
FR0209616A FR2842940B1 (en) 2002-07-29 2002-07-29 AUTOMATIC STOP DEVICE FOR DRIVING A SOLAR PROTECTION, OCCULTATION OR CLOSURE ELEMENT
PCT/IB2003/003256 WO2004013442A1 (en) 2002-07-29 2003-07-17 Device for controlling a motorized shutter

Publications (2)

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

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ID=30011576

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EP03766555A Expired - Lifetime EP1549818B1 (en) 2002-07-29 2003-07-17 Device for controlling a motorized shutter

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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)

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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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004013442A1 *

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WO2004013442A1 (en) 2004-02-12
ES2239930T1 (en) 2005-10-16
FR2842940B1 (en) 2005-02-04
EP1549818B1 (en) 2010-04-14
FR2842940A1 (en) 2004-01-30
ATE464453T1 (en) 2010-04-15
DE60332135D1 (en) 2010-05-27
AU2003248240A1 (en) 2004-02-23

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