EP0844363B1 - Driving device for roller shutter or the like - Google Patents

Driving device for roller shutter or the like Download PDF

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Publication number
EP0844363B1
EP0844363B1 EP97810871A EP97810871A EP0844363B1 EP 0844363 B1 EP0844363 B1 EP 0844363B1 EP 97810871 A EP97810871 A EP 97810871A EP 97810871 A EP97810871 A EP 97810871A EP 0844363 B1 EP0844363 B1 EP 0844363B1
Authority
EP
European Patent Office
Prior art keywords
switches
arm
column
motor
small plate
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.)
Expired - Lifetime
Application number
EP97810871A
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German (de)
French (fr)
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EP0844363A1 (en
Inventor
Thierry Jacqui
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Somfy SA
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Somfy SA
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Filing date
Publication date
Priority claimed from FR9614202A external-priority patent/FR2755998B1/en
Application filed by Somfy SA filed Critical Somfy SA
Publication of EP0844363A1 publication Critical patent/EP0844363A1/en
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Publication of EP0844363B1 publication Critical patent/EP0844363B1/en
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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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6818—Control using sensors
    • E06B2009/6854—Control using sensors sensing torque

Definitions

  • the present invention relates to a drive device comprising a tubular electric motor a winding tube of a rolling shutter or the like coming into abutment in the rolled up position and an automatic stop device reacting to the torque exerted on the motor housing by the shaft winding to interrupt the feeding of the engine during an increase in torque due to a arrival of the roller shutter in the high position, the casing of the motor being rotatably mounted so as to be rotated against the action of a means elastic when the torque exerted on the casing of the motor by the winding shaft exceeds a certain threshold, the automatic stop device having at least one switch and a kinematic switch actuating arm secured to the motor housing.
  • engine is meant the whole engine.
  • Such a device is known from document EP 0 703 344.
  • the motor is provided with two arms each leaning on a spring and actuating each a switch.
  • the motor is rotated against the action of one of the springs and activates one of the switches, which has the effect of interrupting motor power.
  • the other switch is used to interrupt power to the engine at case, during its unfolding, the roller shutter encounters an obstacle having the effect of causing the motor in the other direction. Stopping the roller shutter in fully extended position is ensured by a special switch controlled by a mechanism measuring the movement of the roller shutter. At rest, the arms are in contact with the pushers of the switches, so the arm stroke is very low.
  • Adjusting the spring precompression is very delicate, because these springs act one on the other, so that the torque setting required to actuation of switches, in particular the switch operating when the roller shutter arrives in high stop, is very delicate.
  • These means are not incidentally not used alone, but in combination with the mechanism measuring the roller shutter seam.
  • This mechanism by a switch, neutralizes actuation of the switch operating at the winding, as long as the roller shutter has not reaches an area close to its full winding.
  • the switch bypass by the controlled switch by the distance-measuring device allows therefore to ignore the torque exerted by the flap rolling on the motor at the winding only in the last phase of its winding.
  • the present invention has for purpose of making a stop device reacting to torque exerted on the motor by the roller shutter, of which adjustment is easier.
  • the drive device is characterized in that the switch or the arm actuator is mounted in such a way that it can be moved in order to permanently change the distance, at rest, between the arm and the switch.
  • the device includes a second switch, arranged on the other side of the arm relative to the first switch and activated when the torque exerted on the motor drops below a determined value, which allows stop the engine when the shutter is completely unwound.
  • the two switches are preferably mounted symmetrically relative to the actuating arm, in the absence of torque exerted on the engine.
  • the couple necessary to stop the roller shutter at the top stop being generally significantly greater than the torque necessary to stop the rolling shutter in abutment low, an asymmetry must be introduced. This asymmetry can be introduced by the displacement of switches, for example by moving in rotation or translation of a support carrying the two switches or by moving the arm actuation, respectively of the actuating arms.
  • the switches can for example be fixed on a angularly adjustable plate, means of locking being provided to fix the plate in the asymmetrical angular position chosen.
  • the stop device for right or left mounting, includes a fixed cylindrical cage in rotation housed two control rods in the winding tube integral in rotation with the housing, calibrated springs opposing the rotation of the housing relative to the cage, a pair of switches and a pair of arms symmetrically mounted lever actuation relative to the axis of the cage on integral axes a plate rotatably mounted around an axis confused with the axis of the cage and having a plane of symmetry passing through said axis and positionable angularly, so that the plane of symmetry can be tilted either to the right or to the left relative to the plane of symmetry of the cylindrical cage, plate locking means in the angular position chosen, said bars being symmetrical and the springs also and the plate is also axially movable against the action of a spring.
  • One of the switches operates at unfolding, the asymmetry given to the position of the plateau, differentiating the torques necessary for actuation of the switches, the most torque large corresponding to the
  • Such a drive device has the advantage of can be mounted on the left side of a doorway to the right of it, the engine then having to turn one way or the other, depending on the position of mounting, for winding the roller shutter.
  • the support, especially the turntable will moved one way or the other, so that the switch to work when the shutter rolling arrives in high stop, always the switch farthest from the actuating arm linked to the engine.
  • the motor housing will preferably be retained in rotation by two identical opposing springs tared in machined.
  • Figure 1 schematically illustrates the principle of base of the stop device.
  • Figure 2 schematically illustrates a first method to change the distance between the arm actuator and two switches.
  • Figure 3 schematically illustrates a second method to change the distance between the arm actuation and a pair of switch.
  • FIG. 4 represents a first embodiment of the invention.
  • Figure 5 is a schematic partial view of a second mode of execution using a third method to change the distance between the actuating arm and a pair of switch.
  • Figure 6 shows the device of Figure 5 after changing the distance between the arm actuators and switches.
  • the basic principle of the stop device according to the invention is shown in Figure 1.
  • the housing a motor not shown is secured to a support 1 can rotate around an axis a and retained in rotation by two opposing springs 3 and 4 acting on two arms 5 and 6 of the support 1.
  • the support 1 is provided with a finger 7 located between two switches 21 and 22 located at distances C1 and C2 from finger 7 respectively.
  • the support 1 pivots and finger 7 actuates one of the switches 21 or 22, depending on the direction of rotation of the motor housing.
  • the idea of the invention is to modify the distances C1 and C2 depending on the selected torque for stopping the engine.
  • two switches 21 and 22 not only allows mounting right or left of the engine in a doorway window, but it also allows in some cases to roller shutter, to stop the roller shutter when it is completely unrolled and it arrives against a base stop having the effect of causing a sudden decrease in the torque exerted by the flap rolling on the engine through the tube winding.
  • the torque required for stopping the engine will be relatively large, so the distance C1 or C2 will be adjusted accordingly, while the stop stop bass usually results in a small reduction of the torque, so that the distance C1 or C2 will be chosen shorter.
  • FIG. 2 schematically illustrates a first method to modify C1 and C2.
  • both switches 21 and 22 are fixed on a common support 8 carriage-like that can move transversely to finger 7 as indicated by the double arrow.
  • the distance between the switches themselves is fixed, so that a increase in C1 corresponds to a decrease corresponding to C2 and vice versa. this is generally permissible in a stop device for roller shutter.
  • Figure 3. is a variant of the method shown in Figure 2, which consists of mounting the switches 21 and 22 on a rotatably mounted disc around axis a.
  • FIG. 4 represents an example of execution of the stop device according to the invention, obtained from of the device shown in Figure 2 of the application for Patent No 96 14202
  • the device shown is also mounted inside a winding tube 2, partially shown.
  • a crown 10 At the end shown of the winding tube 2 is fixed internally a crown 10, a smooth part of which rests on a support cylindrical 11 serving as end bearing for the tube winding and forming part of a support 12 fixed to the cheek of a box not shown and containing the electrical connections of the control supply motor .
  • the casing 14 is provided with two bars longitudinal 15 and 16 fixed to the inner wall of the casing 14 by screws 17 and housed in grooves of the cage 13. These bars 15 and 16 and these grooves are arranged parallel to the common axis of the tube winding 2 and casing 14 and symmetrically relative to this axis.
  • the casing 14 is retained in rotation around the cage 13 by four sets of V-shaped springs 18 arranged between each of the bars 15 and 16 and the cage 13 each retained between two sets of springs. The calibration of these springs is done either by the choice of springs, either by the number of springs.
  • the other end of the cage 13 is terminated by a front wall 20.
  • On this wall 20 are fixed the two switches 21 and 22, arranged symmetrically relative to a plane containing the axis of the assembly and passing through the middle of a finger 23 extending towards the front of the edge of the wall 20, parallel to the axis common.
  • the switches 21 and 22 are each provided respectively of a pusher 24 and 25 intended to be actuated by a lever of the first kind or rocker 26, respectively 27.
  • connection tabs 28 and 29 for connection electrical switches of the motor, not shown, located in the extension of the stop device represented.
  • the front wall 20 is provided, in its center, with an axis 30 combined with the geometric axis of the cage 13, extending between switches 21 and 22 and provided of a head.
  • a plate 31 extending approximately on a semicircle and having a plane of axial symmetry.
  • This plate 31 carries the levers 26 and 27 which are mounted pivoting on rods 32 and 33.
  • helical springs 34 and 35 are mounted working in torsion and compression and now in particular the levers separated from the pushers 24 and 25 switches.
  • Around the rod 30 is also mounted a spring 36 which holds the plate 31 against the front wall 20.
  • the plate 31 has an axial plane of symmetry of each side of which the plate 31 has two notches 50 and 51, arranged symmetrically relative to the plane symmetry of the plate, for example 5 ° on each side of this plane, as well as two arms 53 and 54 also symmetrically arranged relative to the plane of symmetry and whose ends are located on the trajectory of bars 15 and 16, respectively.
  • the finished device is delivered to installers in a neutral position in which the plate 31 is in abutment against the end of the finger 23 by its part 52 separating the notches 50 and 51.
  • levers 26 and 27 are at the same distance from the switches. From this position, the installer can obtain a "left" device or "right” by slightly turning the plate 31 to left or right. If the plate 31 is turned to left, finger 23 engages in notch 50, as shown in Figure 4, the plate being pushed back by its spring 36. In this position, the stroke of the bar 15 necessary for actuating the lever 26 is enlarged relative to the neutral position, which means more torque must be applied to the winding tube so that the switch 21 is actuated. This torque corresponds to the stop at the stop high.
  • switch 22 which must function as high point shutdown switch, installer, before commissioning, rotate the plate 31 the other way around, so that finger 23 engages in notch 51.
  • the positioning of the plate 31 can also be done automatically, the first time you use installation, by driving one of the arms 53 or 54 of the plate 31 by the bar 15, respectively 16, according to the direction of rotation of the motor corresponding to the winding.
  • Figures 5 and 6 show other means for change the distance between an actuating arm and a pair of switches 21 and 22 from a symmetrical position.
  • the arm 7 In neutral position, the arm 7 is equidistant from switches 21 and 22.
  • the arm 7 has, at its end, a yoke 60 at the middle of which is mounted a cylindrical column 61 extending in the axis of the arm 7.
  • the end lower (in the drawing) of the rod 61 has a base 62 of diameter larger than the diameter of the column and connected to the column by a conical part.
  • the outer end of the column 61 is provided with a head 63.
  • a plate 64 is mounted transversely on arm 7 in yoke 60. This plate 64 has a straight longitudinal slot 65 crossed by the column 61.
  • the slot 65 leads to enlargements 66, respectively 67 whose diameter is slightly greater than the diameter from the base 62 of the column.
  • the plate 64 extends symmetrically on each side of the arm 7 and rests on the upper end of the conical part of base 62 of the column under the thrust of a spring 68 working in compression between the head 63 and the plate 64.
  • switches 21 and 22 are mounted on one level different, lower in the drawing.
  • the installer When installing the roller shutter, the installer first controls the winding of the roller shutter. When this roller shutter comes into high stop against its housing, the motor housing is driven in rotation. We will assume that this rotation is done clockwise in Figure 5. The plate 64 immediately abuts against the stop 69, which can be very close to the insert, like the stop 70. The plate 64 is thus pushed back to the left relative to arm 7. When the enlargement 66 of the plate arrives opposite the base 62 of column 61, the insert is pushed onto this base by the spring 68 and comes to occupy the level switches 21 and 22. When arm 7 returns in its neutral position, the distance C1 between the plate 64 and the switch 21 is therefore substantially greater than the distance between this plate and switch 22.
  • switch 21 The torque required to actuation of switch 21 is therefore significantly larger than for actuation of switch 22.
  • Switch 21 will therefore ensure stopping the engine in high stop, while switch 22 will stop the engine at stop low. This gives an asymmetrical positioning automatic during the first winding of the shutter rolling.
  • the arm 7 could be driven indirectly by the motor, for example by multiplication or gear. It is enough that the connection is cinematic.

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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)
  • Stopping Of Electric Motors (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Shutters For Cameras (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The mechanism comprises a release mechanism which responds to the coupling exerted on the casing of the motor by a tube which is being driven by the motor. The casing is mounted to rotate, turning against the action of an elastic device (3,4). The casing is mechanically linked to an operating arm (7) in order to operate one of two switches (21,22) according to the direction in which the arm is tilted. The switches and the arm are mounted so that their relative positions can be permanently adjusted to achieve the required settings for the stop mechanism. In the absence of any coupling on the motor, the arm is placed symmetrically between the two switches.

Description

La présente invention concerne un dispositif d'entraínement comprenant un moteur électrique tubulaire entraínant un tube d'enroulement d'un volet roulant ou analogues venant en butée en position haute enroulée et un dispositif d'arrêt automatique réagissant au couple exercé sur le carter du moteur par l'arbre d'enroulement de manière à interrompre l'alimentation du moteur lors d'une augmentation du couple due à une arrivée du volet roulant en position haute, le carter du moteur étant monté rotativement de manière à être entraíné en rotation contre l'action d'un moyen élastique lorsque le couple exercé sur le carter du moteur par l'arbre d'enroulement dépasse un certain seuil, le dispositif d'arrêt antomatique présentant au moins un interrupteur et un bras d'actionnement de l'interrupteur cinématiquement solidaire du carter du moteur.The present invention relates to a drive device comprising a tubular electric motor a winding tube of a rolling shutter or the like coming into abutment in the rolled up position and an automatic stop device reacting to the torque exerted on the motor housing by the shaft winding to interrupt the feeding of the engine during an increase in torque due to a arrival of the roller shutter in the high position, the casing of the motor being rotatably mounted so as to be rotated against the action of a means elastic when the torque exerted on the casing of the motor by the winding shaft exceeds a certain threshold, the automatic stop device having at least one switch and a kinematic switch actuating arm secured to the motor housing.

Par moteur, on entend l'ensemble du moteur.By engine is meant the whole engine.

Un tel dispositif est connu dû document EP 0 703 344. Dans ce dispositif, le moteur est muni de deux bras s'appuyant chacun sur un ressort et actionnant chacun un interrupteur. Lorsque le volet roulant arrive en butée haute, le moteur est entraíné en rotation contre l'action de l'un des ressorts et actionne l'un des interrupteurs, ce qui a pour effet d'interrompre l'alimentation du moteur. L'autre interrupteur est utilisé pour interrompre l'alimentation du moteur au cas où, lors de son déroulement, le volet roulant rencontre un obstacle ayant pour effet d'entraíner le moteur dans l'autre sens. L'arrêt du volet roulant en position complètement déroulée est assuré par un interrupteur particulier commandé par un mécanisme mesurant le déplacement du volet roulant. Au repos, les bras sont en contact avec les poussoirs des interrupteurs, de sorte que la course des bras est très faible. Le réglage de la précompression des ressorts est très délicat, car ces ressorts agissent l'un sur l'autre, de sorte que le réglage du couple nécessaire à l'actionnement des interrupteurs, en particulier de l'interrupteur opérant lorsque le volet roulant arrive en butée haute, est très délicat. Ces moyens ne sont d'ailleurs pas utilisés seuls, mais en combinaison avec le mécanisme mesurant la couse du volet roulant. Ce mécanisme, par un interrupteur, neutralise l'actionnement de l'interrupteur opérant à l'enroulement, tant que le volet roulant n'a pas atteint une zone proche de son enroulement complet. Le shuntage de l'interrupteur par l'interrupteur commandé par le dispositif de mesure du chemin parcouru permet donc de ne tenir compte du couple exercé par le volet roulant sur le moteur à l'enroulement que dans la dernière phase de son enroulement.Such a device is known from document EP 0 703 344. In this device, the motor is provided with two arms each leaning on a spring and actuating each a switch. When the roller shutter arrives in high stop, the motor is rotated against the action of one of the springs and activates one of the switches, which has the effect of interrupting motor power. The other switch is used to interrupt power to the engine at case, during its unfolding, the roller shutter encounters an obstacle having the effect of causing the motor in the other direction. Stopping the roller shutter in fully extended position is ensured by a special switch controlled by a mechanism measuring the movement of the roller shutter. At rest, the arms are in contact with the pushers of the switches, so the arm stroke is very low. Adjusting the spring precompression is very delicate, because these springs act one on the other, so that the torque setting required to actuation of switches, in particular the switch operating when the roller shutter arrives in high stop, is very delicate. These means are not incidentally not used alone, but in combination with the mechanism measuring the roller shutter seam. This mechanism, by a switch, neutralizes actuation of the switch operating at the winding, as long as the roller shutter has not reaches an area close to its full winding. The switch bypass by the controlled switch by the distance-measuring device allows therefore to ignore the torque exerted by the flap rolling on the motor at the winding only in the last phase of its winding.

On connaít également de la demande DE 42 30 729 un dispositif similaire.We also know from the application DE 42 30 729 a device similar.

Reprenant un concept décrit dans. la demande de brevet antérieure No 96 14202, la présente invention a pour but de réaliser un dispositif d'arrêt réagissant au couple exercé sur le moteur par le volet roulant, dont le réglage est plus facile.Using a concept described in. the patent application No 96 14202, the present invention has for purpose of making a stop device reacting to torque exerted on the motor by the roller shutter, of which adjustment is easier.

Le dispositif d'entraínement selon l'invention est caractérisé en ce que l'interrupteur ou le bras d'actionnement est monté de telle manière qu'il peut être déplacé afin de modifier de façon permanente la distance, au repos, entre le bras et l'interrupteur.The drive device according to the invention is characterized in that the switch or the arm actuator is mounted in such a way that it can be moved in order to permanently change the distance, at rest, between the arm and the switch.

On n'agit plus dès lors sur un ressort pour régler le point de déclenchement, mais simplement sur la distance séparant l'interrupteur du bras d'actionnement de cet interrupteur, ce qui est beaucoup moins délicat.We no longer act on a spring to adjust the trigger point but just over the distance separating the switch from the actuating arm of this switch, which is much less delicate.

Selon un mode d'exécution de l'invention, le dispositif comprend un second interrupteur, disposé de l'autre côté du bras par rapport au premier interrupteur et actionné lorsque le couple exercé sur le moteur descend en dessous d'une valeur déterminée, ce qui permet d'arrêter le moteur lorsque le volet roulant est complètement déroulé.According to one embodiment of the invention, the device includes a second switch, arranged on the other side of the arm relative to the first switch and activated when the torque exerted on the motor drops below a determined value, which allows stop the engine when the shutter is completely unwound.

Les deux interrupteurs sont de préférence montés symétriquement relativement au bras d'actionnement, en l'absence de couple exercé sur le moteur. Le couple nécessaire à l'arrêt du volet roulant en butée haute étant généralement sensiblement supérieur au couple nécessaire pour l'arrêt du volet roulant en butée basse, une dissymétrie doit être introduite. Cette dissymétrie peut être introduite par le déplacement des interrupteurs, par exemple par le déplacement en rotation ou en translation d'un support portant les deux interrupteurs ou par le déplacement du bras d'actionnement, respectivement des bras d'actionnement.The two switches are preferably mounted symmetrically relative to the actuating arm, in the absence of torque exerted on the engine. The couple necessary to stop the roller shutter at the top stop being generally significantly greater than the torque necessary to stop the rolling shutter in abutment low, an asymmetry must be introduced. This asymmetry can be introduced by the displacement of switches, for example by moving in rotation or translation of a support carrying the two switches or by moving the arm actuation, respectively of the actuating arms.

Les interrupteurs peuvent être par exemple fixés sur un plateau orientable angulairement, des moyens de verrouillage étant prévus pour fixer le plateau dans la position angulaire dissymétrique choisie.The switches can for example be fixed on a angularly adjustable plate, means of locking being provided to fix the plate in the asymmetrical angular position chosen.

Selon un mode particulier d'exécution de l'invention, pour montage droite ou gauche, le dispositif d'arrêt comprend une cage cylindrique fixe en rotation logée dans le tube d'enroulement, deux barres de commande solidaires en rotation du carter, des ressorts tarés s'opposant à la rotation du carter relativement à la cage, une paire d'interrupteurs et une paire de bras d'actionnement en forme de levier montés symétriquement relativement à l'axe de la cage sur des axes solidaires d'un plateau monté rotativement autour d'un axe confondu avec l'axe de la cage et présentant un plan de symétrie passant par ledit axe et positionnable angulairement, de telle sorte que le plan de symétrie du plateau peut être incliné soit vers la droite, soit vers la gauche relativement au plan de symétrie de la cage cylindrique, des moyens de verrouillage du plateau dans la position angulaire choisie, lesdites barres étant symétriques et les ressorts également et le plateau est également mobile axialement contre l'action d'un ressort. L'un des interrupteurs opère au déroulement, la dissymétrie donnée à la position du plateau, différentiant les couples nécessaires à l'actionnement des interrupteurs, le couple le plus grand correspondant à l'arrêt en butée haute.According to a particular embodiment of the invention, for right or left mounting, the stop device includes a fixed cylindrical cage in rotation housed two control rods in the winding tube integral in rotation with the housing, calibrated springs opposing the rotation of the housing relative to the cage, a pair of switches and a pair of arms symmetrically mounted lever actuation relative to the axis of the cage on integral axes a plate rotatably mounted around an axis confused with the axis of the cage and having a plane of symmetry passing through said axis and positionable angularly, so that the plane of symmetry can be tilted either to the right or to the left relative to the plane of symmetry of the cylindrical cage, plate locking means in the angular position chosen, said bars being symmetrical and the springs also and the plate is also axially movable against the action of a spring. One of the switches operates at unfolding, the asymmetry given to the position of the plateau, differentiating the torques necessary for actuation of the switches, the most torque large corresponding to the stop in high stop.

Un tel dispositif d'entraínement présente l'avantage de pouvoir être monté aussi bien à gauche d'une embrasure qu'à droite de celle-ci, le moteur devant alors tourner dans un sens ou dans l'autre, selon la position de montage, pour l'enroulement du volet roulant. Le support, en particulier le plateau rotatif, sera déplacé dans un sens ou dans l'autre, afin que l'interrupteur devant travailler lorsque le volet roulant arrive en butée haute, soit toujours l'interrupteur le plus éloigné du bras d'actionnement lié au moteur.Such a drive device has the advantage of can be mounted on the left side of a doorway to the right of it, the engine then having to turn one way or the other, depending on the position of mounting, for winding the roller shutter. The support, especially the turntable, will moved one way or the other, so that the switch to work when the shutter rolling arrives in high stop, always the switch farthest from the actuating arm linked to the engine.

Ces moyens d'arrêt du moteur sont applicables dans tous les. cas où le couple nominal appliqué par la motorisation au volet roulant reste raisonnable.These engine stopping means are applicable in all the. case where the nominal torque applied by the roller shutter motorization remains reasonable.

Le carter du moteur sera de préférence retenu en rotation par deux ressorts antagonistes identiques tarés en usiné.The motor housing will preferably be retained in rotation by two identical opposing springs tared in machined.

Le dessin annexé, représente, à titre d'exemple, des modes d'exécutions du dispositif d'arrêt selon l'invention.The accompanying drawing shows, by way of example, modes of execution of the stop device according to the invention.

La figure 1 illustre schématiquement le principe de base du dispositif d'arrêt.Figure 1 schematically illustrates the principle of base of the stop device.

La figure 2 illustre schématiquement une première méthode pour modifier la distance entre le bras d'actionnement et deux interrupteurs.Figure 2 schematically illustrates a first method to change the distance between the arm actuator and two switches.

La figure 3 illustre schématiquement une deuxième méthode pour modifier la distance entre le bras d'actionnement et une paire d'interrupteur. Figure 3 schematically illustrates a second method to change the distance between the arm actuation and a pair of switch.

La figure 4 représente un premier mode d'exécution de l'invention.FIG. 4 represents a first embodiment of the invention.

La figure 5 est une vue schématique, partielle, d'un second mode d'exécution utilisant une troisième méthode pour modifier la distance entre le bras d'actionnement et une paire d'interrupteur.Figure 5 is a schematic partial view of a second mode of execution using a third method to change the distance between the actuating arm and a pair of switch.

La figure 6 représente le dispositif de la figure 5 après modification de la distance entre le bras d'actionnement et les interrupteurs.Figure 6 shows the device of Figure 5 after changing the distance between the arm actuators and switches.

Le principe de base du dispositif d'arrêt selon l'invention est représenté à la figure 1. Le carter d'un moteur non représenté est solidaire d'un support 1 pouvant tourner autour d'un axe a et retenu en rotation par deux ressorts antagonistes 3 et 4 agissant sur deux bras 5 et 6 du support 1. Le support 1 est muni d'un doigt 7 situé entre deux interrupteurs 21 et 22 situés respectivement à des distances C1 et C2 du doigt 7. Lorsqu'un couple est exercé sur le carter du moteur par le tube d'enroulement du volet roulant, lui-même retenu par le volet roulant arrivé en butée, le support 1 pivote et le doigt 7 vient actionner l'un des interrupteurs 21 ou 22, selon le sens de rotation du carter du moteur. L'idée de l'invention est de modifier les distances C1 et C2 en fonction du couple retenu pour l'arrêt du moteur. L'utilisation de deux interrupteurs 21 et 22 permet non seulement un montage droite ou gauche du moteur dans une embrasure de fenêtre, mais il permet en outre, dans certains cas de volet roulant, d'assurer l'arrêt du volet roulant lorsqu'il est complètement déroulé et qu'il arrive contre une butée base ayant pour effet de provoquer une brusque diminution du couple exercé par le volet roulant sur le moteur par l'intermédiaire du tube d'enroulement. Dans le cas d'un arrêt en butée haute, le couple exigé pour l'arrêt du moteur sera relativement grand, de sorte que la distance C1 ou C2 sera réglée en conséquence, tandis que l'arrêt en butée basse se traduit généralement par une faible réduction du couple, de telle sorte que la distance C1 ou C2 sera choisie plus courte.The basic principle of the stop device according to the invention is shown in Figure 1. The housing a motor not shown is secured to a support 1 can rotate around an axis a and retained in rotation by two opposing springs 3 and 4 acting on two arms 5 and 6 of the support 1. The support 1 is provided with a finger 7 located between two switches 21 and 22 located at distances C1 and C2 from finger 7 respectively. When torque is exerted on the motor housing by the roller shutter winding tube, itself retained by the rolling shutter in abutment, the support 1 pivots and finger 7 actuates one of the switches 21 or 22, depending on the direction of rotation of the motor housing. The idea of the invention is to modify the distances C1 and C2 depending on the selected torque for stopping the engine. The use of two switches 21 and 22 not only allows mounting right or left of the engine in a doorway window, but it also allows in some cases to roller shutter, to stop the roller shutter when it is completely unrolled and it arrives against a base stop having the effect of causing a sudden decrease in the torque exerted by the flap rolling on the engine through the tube winding. In the case of a stop in high stop, the torque required for stopping the engine will be relatively large, so the distance C1 or C2 will be adjusted accordingly, while the stop stop bass usually results in a small reduction of the torque, so that the distance C1 or C2 will be chosen shorter.

La figure 2 illustre schématiquement une première méthode pour modifier C1 et C2. Dans ce cas, les deux interrupteurs 21 et 22 sont fixés sur un support commun 8 en forme de chariot pouvant se déplacer transversalement au doigt 7 comme indiqué par la double flèche. Dans ce cas, la distance entre les interrupteurs eux-mêmes est fixe, de telle sorte qu'une augmentation de C1 correspond à une diminution correspondante de C2 et réciproquement. Ceci est généralement admissible dans un dispositif d'arrêt pour volet roulant.Figure 2 schematically illustrates a first method to modify C1 and C2. In this case, both switches 21 and 22 are fixed on a common support 8 carriage-like that can move transversely to finger 7 as indicated by the double arrow. In this case, the distance between the switches themselves is fixed, so that a increase in C1 corresponds to a decrease corresponding to C2 and vice versa. this is generally permissible in a stop device for roller shutter.

La figure 3.est une variante d'exécution de la méthode représentée à la figure 2, qui consiste à monter les interrupteurs 21 et 22 sur un disque monté rotativement autour de l'axe a.Figure 3.is a variant of the method shown in Figure 2, which consists of mounting the switches 21 and 22 on a rotatably mounted disc around axis a.

La figure 4 représente un exemple d'exécution du dispositif d'arrêt selon l'invention, obtenu à partir du dispositif représenté à la figure 2 de la demande de brevet No 96 14202 On retrouve dans ce mode d'exécution tous les éléments du dispositif de la demande No 96 14 202. concernant la détection d'un surcouple sur le carter du moteur. Le dispositif représenté est également monté à l'intérieur d'un tube d'enroulement 2, partiellement représenté. A l'extrémité représentée du tube d'enroulement 2 est fixée intérieurement une couronne 10 dont une partie lisse s'appuie sur un appui cylindrique 11 servant de palier d'extrémité au tube d'enroulement et faisant partie d'un support 12 fixé à la joue d'un caisson non représenté et contenant les connexions électriques de l'alimentation de commande du moteur.. Sur ce support 12 est fixée une cage 13 cylindrique montée à l'intérieur d'un prolongement du carter cylindrique 14 du moteur et qui retient, de manière élastique, ce carter 14 en rotation. A cet effet, le carter 14 est muni de deux barres longitudinales 15 et 16 fixées à la paroi intérieure du carter 14 par des vis 17 et logées dans des rainures de la cage 13. Ces barres 15 et 16 et ces rainures sont disposées parallèlement à l'axe commun du tube d'enroulement 2 et du carter 14 et symétriquement relativement à cet axe. Le carter 14 est retenu en rotation autour de la cage 13 par quatre jeux de ressorts en V 18 disposés entre chacune des barres 15 et 16 et la cage 13 retenues chacune entre deux jeux de ressorts. Le tarage de ces ressorts se fait soit par le choix des ressorts, soit par le nombre des ressorts.FIG. 4 represents an example of execution of the stop device according to the invention, obtained from of the device shown in Figure 2 of the application for Patent No 96 14202 We find in this embodiment all the elements of the application No. 96 14 202. concerning the detection of an overtorque on the motor housing. The device shown is also mounted inside a winding tube 2, partially shown. At the end shown of the winding tube 2 is fixed internally a crown 10, a smooth part of which rests on a support cylindrical 11 serving as end bearing for the tube winding and forming part of a support 12 fixed to the cheek of a box not shown and containing the electrical connections of the control supply motor .. On this support 12 is fixed a cage 13 cylindrical mounted inside an extension of the cylindrical casing 14 of the engine and which retains, from resiliently, this casing 14 in rotation. In this indeed, the casing 14 is provided with two bars longitudinal 15 and 16 fixed to the inner wall of the casing 14 by screws 17 and housed in grooves of the cage 13. These bars 15 and 16 and these grooves are arranged parallel to the common axis of the tube winding 2 and casing 14 and symmetrically relative to this axis. The casing 14 is retained in rotation around the cage 13 by four sets of V-shaped springs 18 arranged between each of the bars 15 and 16 and the cage 13 each retained between two sets of springs. The calibration of these springs is done either by the choice of springs, either by the number of springs.

L'autre extrémité de la cage 13 est terminée par une paroi frontale 20. Sur cette paroi 20 sont fixés les deux interrupteurs 21 et 22, disposés symétriquement relativement à un plan contenant l'axe de l'ensemble et passant par le milieu d'un doigt 23 s'étendant vers l'avant du bord de la paroi 20, parallèlement à l'axe commun. Les interrupteurs 21 et 22 sont munis chacun respectivement d'un poussoir 24 et 25 destiné à être actionné par un levier du premier genre ou bascule 26, respectivement 27. On distingue en outre sur le dessin deux languettes de connexion 28 et 29 pour la liaison électrique des interrupteurs au moteur, non représenté, situé dans le prolongement du dispositif d'arrêt représenté.The other end of the cage 13 is terminated by a front wall 20. On this wall 20 are fixed the two switches 21 and 22, arranged symmetrically relative to a plane containing the axis of the assembly and passing through the middle of a finger 23 extending towards the front of the edge of the wall 20, parallel to the axis common. The switches 21 and 22 are each provided respectively of a pusher 24 and 25 intended to be actuated by a lever of the first kind or rocker 26, respectively 27. A distinction is also made in the drawing two connection tabs 28 and 29 for connection electrical switches of the motor, not shown, located in the extension of the stop device represented.

La paroi frontale 20 est munie, en son centre, d'un axe 30 confondu avec l'axe géométrique de la cage 13, s'étendant entre les interrupteurs 21 et 22 et muni d'une tête. Autour de cet axe 30 est articulé un plateau 31 s'étendant approximativement sur un demi-cercle et présentant un plan de symétrie axiale. Ce plateau 31 porte les leviers 26 et 27 qui sont montés pivotants sur des tiges 32 et 33. Autour de ces tiges sont montés des ressorts hélicoïdaux 34 et 35 travaillant en torsion et en compression et maintenant notamment les leviers écartés des poussoirs 24 et 25 des interrupteurs. Autour de la tige 30 est également monté un ressort 36 qui maintient le plateau 31 contre la paroi frontale 20.The front wall 20 is provided, in its center, with an axis 30 combined with the geometric axis of the cage 13, extending between switches 21 and 22 and provided of a head. Around this axis 30 is articulated a plate 31 extending approximately on a semicircle and having a plane of axial symmetry. This plate 31 carries the levers 26 and 27 which are mounted pivoting on rods 32 and 33. Around these rods helical springs 34 and 35 are mounted working in torsion and compression and now in particular the levers separated from the pushers 24 and 25 switches. Around the rod 30 is also mounted a spring 36 which holds the plate 31 against the front wall 20.

On voit dès lors que la rotation du carter 14 du moteur dans un sens ou dans l'autre a pour effet d'entraíner l'un des leviers 26 et 27 par ses barres 15 ou 16. Les leviers 26 et 27 sont donc respectivement actionnés lorsque le couple agissant sur le moteur par l'intermédiaire du tube d'enroulement dépasse une certaine valeur, respectivement descend au-dessous d'une certaine valeur.It can therefore be seen that the rotation of the motor casing 14 one way or the other has the effect of causing one of the levers 26 and 27 by its bars 15 or 16. The levers 26 and 27 are therefore actuated respectively when the torque acting on the engine by through the winding tube exceeds one certain value, respectively goes below of a certain value.

Le plateau 31 présente un plan axial de symétrie de chaque côté duquel le plateau 31 présente deux encoches 50 et 51, disposées symétriquement relativement au plan de symétrie du plateau, par exemple 5° de chaque côté de ce plan, ainsi que deux bras 53 et 54 également disposés symétriquement relativement au plan de symétrie et dont les extrémités sont situées sur la trajectoire des barres 15 et 16, respectivement.The plate 31 has an axial plane of symmetry of each side of which the plate 31 has two notches 50 and 51, arranged symmetrically relative to the plane symmetry of the plate, for example 5 ° on each side of this plane, as well as two arms 53 and 54 also symmetrically arranged relative to the plane of symmetry and whose ends are located on the trajectory of bars 15 and 16, respectively.

Le dispositif terminé est livré aux installateurs dans une position neutre dans laquelle le plateau 31 est en butée contre l'extrémité du doigt 23 par sa partie 52 séparant les encoches 50 et 51. Dans cette position, les leviers 26 et 27 se trouvent à la même distance des interrupteurs. A partir de cette position, l'installateur peut obtenir un dispositif "gauche" ou "droite" en faisant tourner légèrement le plateau 31 à gauche ou à droite. Si le plateau 31 est tourné à gauche, le doigt 23 s'engage dans l'encoche 50, comme représenté à la figure 4, le plateau étant repoussé par son ressort 36. Dans cette position, la course de la barre 15 nécessaire pour l'actionnement du levier 26 est agrandie relativement à la position neutre, ce qui signifie qu'un couple plus important doit être appliqué au tube d'enroulement pour que l'interrupteur 21 soit actionné. Ce couple correspond à l'arrêt en butée haute. Inversement, le levier 27 s'est rapproché de la barre 16, de telle sorte que la course de cette barre 16 nécessaire pour l'actionnement de l'interrupteur 22 est raccourcie, ce qui signifie qu'un couple plus faible suffit pour actionner l'interrupteur 22 qui sera alors l'interrupteur d'arrêt au point bas. On relèvera que l'interrupteur 22 peut être actionné en permanence en l'absence de couple sur le carter 14.The finished device is delivered to installers in a neutral position in which the plate 31 is in abutment against the end of the finger 23 by its part 52 separating the notches 50 and 51. In this position, levers 26 and 27 are at the same distance from the switches. From this position, the installer can obtain a "left" device or "right" by slightly turning the plate 31 to left or right. If the plate 31 is turned to left, finger 23 engages in notch 50, as shown in Figure 4, the plate being pushed back by its spring 36. In this position, the stroke of the bar 15 necessary for actuating the lever 26 is enlarged relative to the neutral position, which means more torque must be applied to the winding tube so that the switch 21 is actuated. This torque corresponds to the stop at the stop high. Conversely, the lever 27 has approached the bar 16, so that the stroke of this bar 16 required for actuation of switch 22 is shortened, which means that a couple more low enough to activate switch 22 which will be then the stop switch at the low point. We will raise switch 22 can be operated continuously in the absence of torque on the casing 14.

Si, compte tenu de l'endroit où doit être monté le moteur, c'est-à-dire également le dispositif d'arrêt, c'est l'interrupteur 22 qui doit fonctionner comme interrupteur d'arrêt au point haut, l'installateur, avant la mise en service, fait tourner le plateau 31 dans l'autre sens, de telle manière que le doigt 23 s'engage dans l'encoche 51.If, taking into account the place where the motor, i.e. also the stop device, it is switch 22 which must function as high point shutdown switch, installer, before commissioning, rotate the plate 31 the other way around, so that finger 23 engages in notch 51.

Le positionnement du plateau 31 peut aussi se faire automatiquement, lors de la première utilisation de l'installation, par l'entraínement de l'un des bras 53 ou 54 du plateau 31 par la barre 15, respectivement 16, selon le sens de rotation du moteur correspondant à l'enroulement.The positioning of the plate 31 can also be done automatically, the first time you use installation, by driving one of the arms 53 or 54 of the plate 31 by the bar 15, respectively 16, according to the direction of rotation of the motor corresponding to the winding.

Dans la position représentée à la figure 4 c'est donc la barre 16, plus proche du levier 27, qui commande l'arrêt du moteur lorsque le volet roulant, déroulé, arrive en butée basse. Dans ce cas, le déplacement de la barre 16 correspond, par exemple, à une chute du couple à environ 10% du couple maximum et au retour du carter 14 vers sa position de repos. Ce déplacement suffit à faire basculer le levier 27 et à actionner l'interrupteur 22. Il convient de relever que cette valeur de couple n'est pratiquement atteinte que lorsque toutes les lames déroulées du volet roulant sont empilées. Ce couple est donc faible. Un telle valeur de couple peut également être atteinte avant déroulement complet si le volet roulant rencontre un obstacle lors de son déroulement. Le dispositif d'arrêt assure donc également l'arrêt du volet roulant lors de la rencontre d'un obstacle en descente.In the position shown in Figure 4 it is therefore the bar 16, closer to the lever 27, which controls stopping the engine when the rolling shutter is unwound, arrives at the bottom stop. In this case, moving the bar 16 corresponds, for example, to a fall in the torque at around 10% of maximum torque and on return from casing 14 to its rest position. This displacement enough to tilt lever 27 and operate switch 22. It should be noted that this torque value is only practically reached when all the blades rolled out of the roller shutter are stacked. This couple is therefore weak. Such torque value can also be reached before complete sequence if the roller shutter encounters a obstacle during its unfolding. The stop device therefore also ensures the shutter stops when encountering a downhill obstacle.

Les figures 5 et 6 représentent d'autres moyens pour modifier la distance entre un bras d'actionnement et une paire d'interrupteur 21 et 22 à partir d'une position symétrique.Figures 5 and 6 show other means for change the distance between an actuating arm and a pair of switches 21 and 22 from a symmetrical position.

On a à nouveau un support 1 monté rotativement autour de l'axe a et muni d'un bras 7. En position neutre, le bras 7 est à égale distance des interrupteurs 21 et 22. Le bras 7 présente, à son extrémité, une chape 60 au milieu de laquelle est montée une colonne cylindrique 61 s'étendant dans l'axe du bras 7. L'extrémité inférieure (dans le dessin) de la tige 61 présente une base 62 de diamètre plus grand que le diamètre de la colonne et reliée à la colonne par une partie conique. L'extrémité extérieure de la colonne 61 est munie d'une tête 63. Une plaquette 64 est montée transversalement au bras 7 dans la chape 60. Cette plaquette 64 présente une fente droite longitudinale 65 traversée par la colonne 61 . A chacune de ses extrémités, la fente 65 débouche dans des élargissements 66, respectivement 67 dont le diamètre est légèrement supérieur au diamètre de la base 62 de la colonne. Au montage en usine, la plaquette 64 s'étend symétriquement de chaque côté du bras 7 et s'appuie sur l'extrémité supérieure de la partie conique de la base 62 de la colonne sous la poussée d'un ressort 68 travaillant en compression entre la tête 63 et la plaquette 64.We again have a support 1 rotatably mounted around of axis a and provided with an arm 7. In neutral position, the arm 7 is equidistant from switches 21 and 22. The arm 7 has, at its end, a yoke 60 at the middle of which is mounted a cylindrical column 61 extending in the axis of the arm 7. The end lower (in the drawing) of the rod 61 has a base 62 of diameter larger than the diameter of the column and connected to the column by a conical part. The outer end of the column 61 is provided with a head 63. A plate 64 is mounted transversely on arm 7 in yoke 60. This plate 64 has a straight longitudinal slot 65 crossed by the column 61. At each of its ends, the slot 65 leads to enlargements 66, respectively 67 whose diameter is slightly greater than the diameter from the base 62 of the column. At factory assembly, the plate 64 extends symmetrically on each side of the arm 7 and rests on the upper end of the conical part of base 62 of the column under the thrust of a spring 68 working in compression between the head 63 and the plate 64.

Dans cette position de la plaquette 64, de chaque côté du bras 7, sont disposées deux butées 69 et 70. Les interrupteurs 21 et 22 sont montés à un niveau différent, inférieur dans le dessin.In this position of the plate 64, on each side of the arm 7, two stops 69 and 70 are arranged. switches 21 and 22 are mounted on one level different, lower in the drawing.

Dans la position neutre représentée à la figure 5, la plaquette 64, si elle était abaissée selon l'axe du bras 7, serait à égale distance des interrupteurs 21 et 22.In the neutral position shown in Figure 5, the insert 64, if it was lowered along the axis of the arm 7, would be equidistant from switches 21 and 22.

Lors de l'installation du volet roulant, l'installateur commande tout d'abord l'enroulement du volet roulant. Lorsque ce volet roulant arrive en butée haute contre son caisson, le carter du moteur est entraíné en rotation. Nous supposerons que cette rotation se fait dans le sens des aiguilles d'une montre à la figure 5. La plaquette 64 vient immédiatement buter contre la butée 69, qui peut être très proche de la plaquette, comme la butée 70. La plaquette 64 est ainsi repoussée vers la gauche relativement au bras 7. Lorsque l'élargissement 66 de la plaquette arrive en face de la base 62 de la colonne 61, la plaquette est poussée sur cette base par le ressort 68 et vient occuper le niveau des interrupteurs 21 et 22. Lorsque le bras 7 revient dans sa position neutre, la distance C1 entre la plaquette 64 et l'interrupteur 21 est donc sensiblement plus grande que la distance entre cette plaquette et l'interrupteur 22. Le couple nécessaire pour l'actionnement de l'interrupteur 21 est donc sensiblement plus grand que pour l'actionnement de l'interrupteur 22. L'interrupteur 21 assurera donc l'arrêt du moteur en butée haute, tandis que l'interrupteur 22 assurera l'arrêt du moteur en butée basse. On obtient ainsi un positionnement dissymétrique automatique lors du premier enroulement du volet roulant.When installing the roller shutter, the installer first controls the winding of the roller shutter. When this roller shutter comes into high stop against its housing, the motor housing is driven in rotation. We will assume that this rotation is done clockwise in Figure 5. The plate 64 immediately abuts against the stop 69, which can be very close to the insert, like the stop 70. The plate 64 is thus pushed back to the left relative to arm 7. When the enlargement 66 of the plate arrives opposite the base 62 of column 61, the insert is pushed onto this base by the spring 68 and comes to occupy the level switches 21 and 22. When arm 7 returns in its neutral position, the distance C1 between the plate 64 and the switch 21 is therefore substantially greater than the distance between this plate and switch 22. The torque required to actuation of switch 21 is therefore significantly larger than for actuation of switch 22. Switch 21 will therefore ensure stopping the engine in high stop, while switch 22 will stop the engine at stop low. This gives an asymmetrical positioning automatic during the first winding of the shutter rolling.

Le bras 7 pourrait être entraíné indirectement par le moteur, par exemple par multiplication ou démultiplication. Il suffit que la liaison soit cinématique.The arm 7 could be driven indirectly by the motor, for example by multiplication or gear. It is enough that the connection is cinematic.

Claims (11)

  1. A driving device comprising a tubular electric motor driving a wind-up tube (2) for a roller blind or the like reaching a limit stop in the raised wound-up position, and an automatic stopping device reacting to the torque exerted on the housing (14) of the motor by the wind-up shaft in a manner such as to interrupt the power supply to the motor when an increase in the torque is caused by the arrival of the roller blind in the raised position, the housing of the motor being mounted to rotate so as to be driven in rotation against the action of a resilient means (3, 4; 18) when the torque exerted on the housing of the motor by the wind-up shaft exceeds a certain threshold the automatic stopping device having at least one switch (21, 22) and an actuating arm (7; 26, 27) of the switch, kinematically fixed to the housing of the motor, wherein the switch (21, 22) or the actuating arm (7; 26, 27) is mounted in a manner such that it can be displaced in order permanently to modify the distance, at rest, between the switch and the actuating arm for adjusting the torque necessary to the actuation of the switch.
  2. The driving device as claimed in claim 1, for left-hand or right-hand installation, which comprises two switches (21, 22) arranged on either side of the arm (7).
  3. The driving device as claimed in claim 2, wherein the two switches are symmetrical relative to the arm in the absence of torque on the motor.
  4. The device as claimed in claim 3, for left-hand or right-hand installation, which comprises a disk (9) mounted to rotate about a spindle coinciding with the axis of rotation (a) of the actuating arm (7) and having a plane of symmetry passing through its axis, this disk bearing a pair of switches (21, 22) arranged symmetrically relative to said plane of symmetry and means for the angular displacement of the disk toward the left or toward the right and means for positioning the disk in the selected angular position so that the switches are at different distances from the actuating arm.
  5. The driving device as claimed in claim 3, wherein the switches (21, 22) are mounted on a support (8) which is displaceable transversely to the arm (7).
  6. The driving device as claimed in claim 3, wherein the switches (21, 22) are fixed and the arm (7) is equipped with an auxiliary piece for actuating (64) the switches, this piece being displaceable transversely to the arm so as to modify the distance between itself and each of the switches and capable of being fixed in two stable positions on the arm.
  7. The driving device as claimed in claim 6, wherein the auxiliary piece is constituted by a small plate (64) possessing a straight slit (65) whose ends open into two widenings (66, 67), and wherein the arm (7) is equipped with a column (61) extending in the direction of the arm and passing through the slit in the small plate, this column possessing a base (62) of larger section than the rest of the column and being able to pass through the widenings (66, 67) of the small plate and against which the small plate bears when the column passes through the slit (65) in the small plate between these widenings, under the action of a spring (68) mounted in compression around the column, between the small plate and a head (63) of the column, so that from a position in which the small plate bears, by its median region, on the base (62) of the column, a displacement of the small plate transversely to the column results in a displacement of the small plate along the column under the thrust of the spring (68) when one of the widenings of the slit arrives opposite the base of the column.
  8. The driving device as claimed in claim 7, wherein the switches (21, 22) are situated outside the trajectory of the small plate (64) when the latter bears by its median part on the base (62) of the column, and wherein the device comprises two limit stops (69, 70) arranged on either side of the arm on the trajectory defined above, in a manner such that when the motor is first driven in a direction corresponding to the winding-up of the roller blind and the latter arrives in abutment, the driving of the housing of the motor by the resistant torque has the effect of bringing the small plate against one of the limit stops (69, 70) which pushes back the small plate and causes its displacement along the column, so that the switches are positioned on the trajectory of this small plate during the rotation of the actuating arm.
  9. The driving device as claimed in claim 1, for left-hand or right-hand installation, wherein it comprises a cylindrical cage (13), fixed in rotation and accommodated in the wind-up tube (2), two control bars (15, 16) fixed in rotation to the housing, calibrated springs (18) opposing the rotation of the housing (14) relative to the cage, a pair of switches (21, 22) and a pair of actuating arms in lever form (26, 27) mounted symmetrically relative to the axis of the cage (13), on shafts (32, 33) fixed to a disk (31) mounted to rotate about an axis (30) merging with the axis of the cage and having a plane of symmetry passing through said axis (30) and capable of angular positioning, so that the plane of symmetry may be inclined either to the right or to the left relative to the plane of symmetry of the cylindrical cage, means for locking (23, 50, 51) the disk (31) in the chosen angular position, said bars (15, 16) being symmetrical and the springs (18) likewise.
  10. The driving device as claimed in claim 9, wherein said disk (31) is likewise movable axially against the action of a spring (36).
  11. The device as claimed in claim 10, wherein one of the switches (21, 22) operates on unwinding, the asymmetry given to the position of the disk (31) differentiating the torques necessary for the actuation of the switches, the greatest torque corresponding to stopping at the upper limit stop.
EP97810871A 1996-11-21 1997-11-14 Driving device for roller shutter or the like Expired - Lifetime EP0844363B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9614202 1996-11-21
FR9614202A FR2755998B1 (en) 1996-11-21 1996-11-21 DEVICE FOR AUTOMATICALLY STOPPING A MOTOR DRIVING A TUBE FOR ROLLING A SHUTTER
FR9701742A FR2755999B1 (en) 1996-11-21 1997-02-14 AUTOMATIC STOPPING DEVICE FOR ROLLING SHUTTERS OR THE LIKE
FR9701742 1997-02-14

Publications (2)

Publication Number Publication Date
EP0844363A1 EP0844363A1 (en) 1998-05-27
EP0844363B1 true EP0844363B1 (en) 2003-07-23

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Application Number Title Priority Date Filing Date
EP97810871A Expired - Lifetime EP0844363B1 (en) 1996-11-21 1997-11-14 Driving device for roller shutter or the like

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EP (1) EP0844363B1 (en)
JP (1) JP4220002B2 (en)
AT (1) ATE245761T1 (en)
DE (1) DE69723652T2 (en)
ES (1) ES2116963T3 (en)
FR (1) FR2755999B1 (en)

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Publication number Priority date Publication date Assignee Title
NL1009836C2 (en) * 1998-08-11 2000-02-17 Henricus Wilhelmus Van Kouwen Device and method for rolling up and unrolling cloth for a department store, whereby the torque is limited.
FR2835117B1 (en) * 2002-01-18 2004-05-07 Daniel Bracq AUTOMATIC STOPPING DEVICE FOR AN ELECTRIC MOTOR HOUSED IN A ROTARY TUBE, PARTICULARLY FOR OPERATING A ROLLING SHUTTER
FR2855205B1 (en) * 2003-05-23 2005-07-08 Somfy Sas DRIVE DEVICE FOR ROLLER SHUTTER OR THE LIKE
ITMI20081518A1 (en) * 2008-08-13 2010-02-14 Corrado Scata SUPPORT DEVICE FOR ELECTRIC SHUTTER MOTORS

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DE3933266A1 (en) * 1989-10-05 1991-01-31 Baumann Rolladen Controlling electromotor for folding roller shutter - sensing torque and and reversing before shut=off to prevent damage from obstruction or jamming
DE4230729A1 (en) * 1991-09-24 1993-03-25 Selve Ernst Gmbh Co Kg Overload protection for motorised roller blind or shutters - has torque limited coupling to cause actuator bar to move and release limit switch and disconnect motor if overload detected
DE4433797A1 (en) 1994-09-22 1996-03-28 Gottlieb Klenk Device for the automatic shutdown of a roller blind, in particular a roller shutter curtain

Also Published As

Publication number Publication date
DE69723652D1 (en) 2003-08-28
ATE245761T1 (en) 2003-08-15
JPH10184250A (en) 1998-07-14
ES2116963T3 (en) 2004-05-01
DE69723652T2 (en) 2004-04-15
FR2755999A1 (en) 1998-05-22
ES2116963T1 (en) 1998-08-01
JP4220002B2 (en) 2009-02-04
EP0844363A1 (en) 1998-05-27
FR2755999B1 (en) 1999-11-12

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