EP1259696B1 - Powered rolling shutter equipped with automatic stopping means - Google Patents

Powered rolling shutter equipped with automatic stopping means Download PDF

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Publication number
EP1259696B1
EP1259696B1 EP01908025A EP01908025A EP1259696B1 EP 1259696 B1 EP1259696 B1 EP 1259696B1 EP 01908025 A EP01908025 A EP 01908025A EP 01908025 A EP01908025 A EP 01908025A EP 1259696 B1 EP1259696 B1 EP 1259696B1
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EP
European Patent Office
Prior art keywords
springs
roller shutter
arms
switch
spring
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP01908025A
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German (de)
French (fr)
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EP1259696A1 (en
Inventor
Norbert Dupielet
Alain Serasset
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Somfy SA
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Somfy SA
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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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B9/72—Operating devices or mechanisms, e.g. with electric drive comprising an electric motor positioned inside the roller
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68—Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809—Control
    • E06B2009/6818—Control using sensors
    • E06B2009/6854—Control using sensors sensing torque
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/006—Switches operated by mechanical overload condition, e.g. transmitted force or torque becoming too high

Definitions

  • the invention relates to a shutter or the like motorized, including an electric motor drive whose stator is connected to a support fixed by means of elastic means opposing the rotation of the stator under the effect of resistant torque exerted by the rolling shutter moving between a wound up position and a low position unrolled, stopping means stopping the shutter in these high and low positions and means for controlling the stopping of the motor in these high and low positions including a switch whose opening is actuated by the rotation of the stator when the resisting torque is greater than the holding force exerted by the elastic means.
  • the rolling shutter described in patent FR 2 740 824 uses a single spring.
  • the switch is open in unwrapped position of the shutter and feeding the motor is provided by an auxiliary switch controlled by a lap counter associated with the engine.
  • a such roller shutter must be mounted in a position determined in a window embrasure.
  • the shutters described in patents EP 0 936 342 and EP 0 703 344 are equipped with two springs antagonists between which the motor stator is maintained.
  • One of these springs is compressed when the rolling shutter, completely rolled up, comes against a stop high, while the other spring is compressed when the roller shutter, completely unrolled, is arrived in low stop, usually against the bottom of the doorway.
  • the high stop spring must be able to oppose the torque generated by the weight of the shutter rolling. But this weight, when the shutter is almost totally unrolled, maybe very important.
  • the spring controlling the stopping of the engine when the shutter arrives at the bottom stop must yield relatively easily to avoid compression unnecessary of the flap arriving in low abutment, compression likely to damage the flap. So it is necessary to have two springs, one very strong, for the high abutment, the other much lower, for the low stop.
  • the direction of rotation of the motor corresponding respectively to winding and rolling shutter is determined, which means that the engine must always be disposed of same side of the embrasure, since if one has the engine on the opposite side of the embrasure direction of rotation will have to be reversed, of course for the same position of the shutter what is usually the case. This represents a constraint that it is not always possible to satisfy and he is therefore necessary to have two engines with their stop control device, one for the left-hand mount and the other for mounting right from the doorway.
  • the object of the invention is to produce a roller shutter whose engine and its stopping device can be mounted on one side or the other of the doorway.
  • the stop device must also be compact so that it can be arranged in a engine, in particular a tubular motor, without increase its dimensions.
  • the shutter according to the invention is characterized in what the elastic means consist of two springs working in compression between two elements movable compression driven in turn by the stator respectively in each of the senses of rotation, the distance to be traveled by the moving element driven from its resting position, before the compression of one of the springs being greater than the distance to be traveled by the movable element driven before the compression of the other spring, and in that the stop device comprises an actuating member kinematically linked to the stator and ensuring, on the one hand, the training of the compression elements and, on the other hand, the actuation of the switch at the end of determined and different race for each direction of rotation of the stator and means of inversion of lengths of the races.
  • the distance to be traveled by the movable element driven before the compression of one of the springs can be nothing.
  • the springs are advantageously helical, of different diameters and nested coaxially one in the other. Such a construction is particularly compact. To simplify the construction, the compression elements present advantageously a single distance between them and the springs are of different lengths.
  • the second compressed spring is advantageously pre-compressed at rest. Both springs can be precompressed.
  • the precompression of the springs allows work at gentle slope with short runs, this which allows to better control the developed forces by the springs and thus to benefit from a great accuracy in triggering forces, especially in that of the compressed spring alone which must not be too important not to degrade the component rolling. Pre-compression also reduces the size of the stop device.
  • the actuating member may be a part of the stator.
  • the actuating member is consisting of a walkman guided in the support 'and equipped, on one side, two arm drive elements of compression in the direction of compression and, the other side, two actuating arms of the switch mounted between these arms and the means inversion of the length of the races are constituted a rocker mounted between the actuating arms of the switch and provided with two arms playing alternatively the role of actuating arm of the switch according to the position of the rocker, the other arm being retracted relative to the switch, the active arm being located between one of the arms operating the player and the switch.
  • the rocker arms are flexible in one direction parallel to its pivot axis and the device stop has a fixed stop located on the trajectory of the arms of the seesaw, in front of the open position of the switch, this stop having effect of spreading the active actuating arm of the switch from its normal active trajectory so as to render it inoperative.
  • This improvement prevents the motor to be powered in the direction of winding if we try to raise the shutter by hand, by example in the case of an attempted break-in.
  • the switch is mounted between the arms of the walkman and movable in the same direction as the walkman so as to be able to change the distance to each of the arms operating the player, that is to say the length of the race necessary for its activation by the player in each direction of rotation of the stator.
  • the springs are mounted in a cage whose one end has a side arm directly driven by the walkman, the compression element compressing the others ends of the springs being constituted by a piece of piston shape penetrating into the cage and into the spring the strongest precompressed between the two ends of the cage.
  • FIG. 1 schematically represents a drive known roller shutter, described for example in the Patent FR 2,666,842.
  • a winding tube is recognized 1 around which comes rolling a shutter.
  • This winding tube 1 is carried on the side represented by a crown 2 mounted rotatively on the cylindrical tubular housing 3 of a electric reducer motor.
  • the other end of the tube 1 is rotatably mounted on a support not shown.
  • the housing 3 is mounted on a support 4 fixed, for example, in the embrasure of a window.
  • a motor associated with a reducer whose output causes a crown 5 causing itself the tube winding 1 in rotation.
  • FIG. 2 This elastic connection is shown in Figures 2 to 4.
  • a housing 7 of the fixed support 4 are coaxially mounted two springs R1 and R2, the spring R1, longer than the spring R2 and smaller diameter being mounted within the R2 spring itself substantially stronger than the spring R1.
  • These springs R1 and R2 are mounted between two compression parts 8 and 9 provided on the one hand with a guide arm 8a respectively 9a mounted freely sliding in guide grooves 10 and 11 of the fixed support 4.
  • the compression parts 8 and 9 are further provided with a lateral arm 8b, 9b for their respective drive by the arms 13 and 14 of a player 12 integral in rotation of the housing 3 by an arm 12c ( Figure 3) and guided in the fixed support 4 in guides 15 and 16 so as to move parallel to the springs R1, R 2 .
  • This player 12 has two parallel arms 12a to 12b opposite the arms 13 and 14. Between these arms 12a and 12b is mounted the arm 17 of an inverting switch 18.
  • the arm 17 can occupy three positions, a central position O in which the switch is open, a position M in which the motor is fed in the direction of the rise that is to say the winding of the shutter and a position D in which the motor is fed in the direction of the descent that is to say the unfolding of the shutter.
  • the player 12 carries a rocker 19 articulated about an axis 50 transversely to the player. This rocker 19 is provided with two arms 19a and 19b can be placed in turn between the arms 12a and 12b of the player so that, in this position, the arm can actuate the switch during the movement of the player.
  • the device is shown in its rest position. It is assumed first of all that the roller shutter is completely unwound- The process is triggered by setting the switch in the D position which has for effect of feeding the winding S2 of the motor ( Figure 16).
  • the switch When the shutter reaches the stop low, it exerts on the engine a resistant couple which tends to cause the casing 3 and consequently the Walkman 12, linked to the housing 3, in the direction of the arrow F1.
  • the arm 14 of the player pushes on the arm 9b of the compression part 9.
  • the couple resistant is sufficient to compress the: spring R1
  • the player moves in the direction F1 and, at the end of a certain race, the arm 19b of the rocker comes meet the arm 17 of the switch. After one race c1 this arm 17 is brought to the position O.
  • the motor power is off.
  • the control of the winding of the shutter is done by placing the switch in the M position which has for effect of feeding the winding S1 of the motor ( Figure 16).
  • the shutter exerts on the engine a resistant torque which tends to drive the player 12 in the sense of arrow F2.
  • This resistant couple is quickly enough for the player 12 to drive the play of compression 8 by its arm 13 by compressing the spring R1.
  • the compression part continuing its displacement then compress the two springs R1 and R2, switch 18 being brought into position O that when the arm 12a of the walkman has traveled the race c2, substantially greater than the stroke c1.
  • the resistive torque required for the actuation of the switch is therefore substantially larger than the resistant torque needed to stop the engine in low stop.
  • flip-flop 19 is swung into the position represented mixed lines and that's when the arm 19 in position 19a 'which actuates the switch.
  • the races c1 and c2 are therefore reversed and the engine stop device is as well adapted to the change of direction of rotation of the motor.
  • the spring R1 may be slightly precompressed.
  • the spring R2 is not pre-compressed at rest.
  • FIG. 2 illustrates schematically a variant of execution mode execution shown in FIG. 2, variant in which two springs R1 and R2 are precompressed.
  • the spring R1 is precompressed between the pieces of compression 8 and 9.
  • the spring R2 is precompressed in a cage 20, more precisely between two pairs of forks 21 and 22 of this mobile cage guided in a guide 23 of the fixed support 4. These forks 21 and 22 let the compression parts 8 and 9 pass. the direction F1, the compression part 9 can thus cross the fork 22 to compress the spring R2 when the fork 21 comes to a stop and, conversely, the compression part 8 can cross the fork 21 to compress the spring R2.
  • FIGs 8 and 9 schematically illustrate a improvement of the first mode of execution or its variant avoiding the refueling of the engine in the sense of climb if, once the shutter stopped in low position, he is raised by hand by his last blade, for example during an attempt burglary.
  • the thrust on the roller shutter exerts on the engine a couple in the direction of arrow F1, ie a torque whose meaning is the same as the resistant torque which caused the engine to stop.
  • the player 12 goes so switch the switch to the M position which causes the shutter to be wound up.
  • the player 12 is equipped with a rocker 19 whose arms are flexible at least in one direction parallel to the axis of articulation of the rocker and on the support 4 is fixed a stop 24 having, on each side, a ramp 24a, 24b, and placed, between the arms of the player 12, on the trajectory of the active arm of the rocker 19, for example the arm 19b.
  • the top of the abutment 24 is furthermore face of the switch position 18.
  • the shutter rolling being unrolled in the down position and stopped, switch 18 is in the O position. lifting the roller shutter the arm 19b of the rocker meets the ramp 24b which spreads the arm of his normal trajectory as represented by the arrow F3, so that he does not meet the arm 17 of switch and the motor is not powered.
  • the reversal of stroke lengths c1 and c2 can also be obtained by moving the switch.
  • This variant is represented in FIG.
  • the switch 18 is mounted in a movable support 25 movable in a housing 26 of the support fixed 4.
  • the movable support 25 is provided with arms of sliding guide in a guide of the fixed support 4.
  • the mobile support 25 is used in abutment against one either end of the housing 26.
  • the springs R1 and R2 are mounted in a cage 27 consisting of a transverse wall 28 forming the bottom of the cage and those arms 29 and 30 extending from of the wall 28 parallel to the axis of the springs and connected near their ends by a hoop 31.
  • the ends of arms 29 and 30 end with 2 walls 32 and 33 parallel to each other and to the axis of springs.
  • the spring R2 is precompressed between the bottom 28 of the cage and the edge of the walls 32 and 33. From the bottom 28 further extends a tubular portion 34 surrounded by the spring R2. This tubular part serves to spring guide R1 freely engaged in this part 34 to come to rest between the bottom 28.
  • the arm 30 of the cage is cranked twice at a right angle to form a paw radial 37 for the drive of the cage by the walkman 12.
  • This piece 35 presents a head 36 of greater diameter than the piston body 35 but cut by two parallel flats of such way that the head 36 can pass between the walls 32 and 33 of the cage. The head 36 can therefore come compress the spring R2.
  • FIGS. 13 The use of the cage shown in FIGS. 13 in a stop device according to Figure 2, is shown schematically in Figure 14.
  • the arm 13 of the player 12 comes to lean directly on the head 36 of the piston 35 which, at rest, is further supported against the fixed support 4.
  • the radial arm 34 is drivable by the arm 14 of the walkman.
  • the arm 29 of back up the switch 18 "to the position of rise M.
  • bistable switches instead of bistable switches one can use monostable switches by adapting the circuit of ordered.
  • Switches 118 'and 118 " correspond to the cut-off switches of a diagram traditional.
  • the monostable switches 218 'and 218 "are open in rest position. They fly a contactor control of the installation contained in a radio receiver 219. The contactor can therefore also be controlled by a transmitter.

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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)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention concerns a powered rolling shutter whereof the stator of the motor is connected to a fixed support via elastic means (R1, R2) for stopping the shutter in high and low abutment when the resisting torque exceeds a selected value, consisting of two springs (R1, R2) compressed by the stator rotation. The travel distance (12) before on of the springs (R2) is compressed is greater than the travel distance (11) before the other spring (R1) is compressed. The compression is ensured by a mobile element (12) also actuating a switch (18). The travels (c1, c2) required for activating the switch can be inverted. The motor can be mounted on the left or on the right with a differentiated resisting torque for stopping in high abutment and low abutment.

Description

L'invention concerne un volet roulant ou similaire motorisé, comprenant un moteur électrique d'entraínement dont le stator est relié à un support fixe par l'intermédiaire de moyens élastiques s'opposant à la rotation du stator sous l'effet du couple résistant exercé par le volet roulant se déplaçant entre une position haute enroulée et une position basse déroulée, des moyens de butée arrêtant le volet roulant dans ces positions haute et basse et des moyens de commande de l'arrêt du moteur dans ces positions haute et basse comprenant un interrupteur dont l'ouverture est actionnée par la rotation du stator lorsque le couple résistant est supérieur à la force de retenue exercée par les moyens élastiques.The invention relates to a shutter or the like motorized, including an electric motor drive whose stator is connected to a support fixed by means of elastic means opposing the rotation of the stator under the effect of resistant torque exerted by the rolling shutter moving between a wound up position and a low position unrolled, stopping means stopping the shutter in these high and low positions and means for controlling the stopping of the motor in these high and low positions including a switch whose opening is actuated by the rotation of the stator when the resisting torque is greater than the holding force exerted by the elastic means.

Des volets roulants ainsi équipés sont décrits dans les brevets FR 2 740 824, EP 0 936 342 et EP 0 703 344.Rolling shutters thus equipped are described in the patents FR 2 740 824, EP 0 936 342 and EP 0 703 344.

Le volet roulant décrit dans le brevet FR 2 740 824 utilise un seul ressort. L'interrupteur est ouvert en position déroulée du volet roulant et l'alimentation du moteur est assurée par un interrupteur auxiliaire commandé par un compteur de tours associé au moteur. Un tel volet roulant doit être monté dans une position déterminée dans une embrasure de fenêtre.The rolling shutter described in patent FR 2 740 824 uses a single spring. The switch is open in unwrapped position of the shutter and feeding the motor is provided by an auxiliary switch controlled by a lap counter associated with the engine. A such roller shutter must be mounted in a position determined in a window embrasure.

Les volets roulants décrits dans les brevets EP 0 936 342 et EP 0 703 344 sont équipés de deux ressorts antagonistes entre lesquels le stator du moteur est maintenu. L'un de ces ressorts est comprimé lorsque le volet roulant, complètement enroulé, arrive contre une butée haute, tandis que l'autre ressort est comprimé lorsque le volet roulant, complètement déroulé, est arrivé en butée basse, généralement contre le bas de l'embrasure. Or, comme ceci est décrit dans le brevet FR 2 740 824, le ressort de butée haute doit pouvoir s'opposer au couple généré par le poids du volet roulant. Or ce poids, lorsque le volet est presque totalement déroulé, peut-être très important. Par contre, le ressort contrôlant l'arrêt du moteur lorsque le volet roulant arrive en butée basse, doit céder relativement facilement pour éviter une compression inutile du volet arrivant en butée basse, compression susceptible d'abímer le volet. Il est donc nécessaire de disposer de deux ressorts, l'un très fort, pour la butée haute, l'autre beaucoup plus faible, pour la butée basse. Or, en équipant le dispositif d'arrêt de deux ressorts différents, le sens de rotation du moteur correspondant respectivement à l'enroulement et au déroulement du volet roulant, est déterminé, ce qui signifie que le moteur doit toujours être disposé du même côté de l'embrasure, étant donné que si l'on dispose le moteur du côté opposé de l'embrasure son sens de rotation devra être inversé, bien entendu pour une même position du volet roulant ce qui est généralement le cas. Ceci représente une contrainte qu'il n'est pas toujours possible de satisfaire et il est donc nécessaire de disposer de deux moteurs avec leur dispositif de commande d'arrêt, l'un pour le montage à gauche et l'autre pour le montage à droite de l'embrasure. The shutters described in patents EP 0 936 342 and EP 0 703 344 are equipped with two springs antagonists between which the motor stator is maintained. One of these springs is compressed when the rolling shutter, completely rolled up, comes against a stop high, while the other spring is compressed when the roller shutter, completely unrolled, is arrived in low stop, usually against the bottom of the doorway. Now, as this is described in the patent FR 2 740 824, the high stop spring must be able to oppose the torque generated by the weight of the shutter rolling. But this weight, when the shutter is almost totally unrolled, maybe very important. By against, the spring controlling the stopping of the engine when the shutter arrives at the bottom stop, must yield relatively easily to avoid compression unnecessary of the flap arriving in low abutment, compression likely to damage the flap. So it is necessary to have two springs, one very strong, for the high abutment, the other much lower, for the low stop. However, by equipping the stop device with two different springs, the direction of rotation of the motor corresponding respectively to winding and rolling shutter, is determined, which means that the engine must always be disposed of same side of the embrasure, since if one has the engine on the opposite side of the embrasure direction of rotation will have to be reversed, of course for the same position of the shutter what is usually the case. This represents a constraint that it is not always possible to satisfy and he is therefore necessary to have two engines with their stop control device, one for the left-hand mount and the other for mounting right from the doorway.

L'invention a pour but de réaliser un volet roulant dont le moteur et son dispositif d'arrêt peuvent être montés aussi bien d'un côté que de l'autre de l'embrasure. Le dispositif d'arrêt doit en outre être compact de manière à pouvoir être disposé dans un moteur, en particulier un moteur tubulaire, sans en augmenter ses dimensions.The object of the invention is to produce a roller shutter whose engine and its stopping device can be mounted on one side or the other of the doorway. The stop device must also be compact so that it can be arranged in a engine, in particular a tubular motor, without increase its dimensions.

Le volet roulant selon l'invention est caractérisé en ce que les moyens élastiques sont constitués de deux ressorts travaillant en compression entre deux éléments mobiles de compression entraínés tour à tour par le stator, respectivement dans chacun des sens de rotation, la distance à parcourir par l'élément mobile entraíné à partir de sa position de repos, avant la compression de l'un des ressorts étant supérieure à la distance à parcourir par l'élément mobile entraíné avant la compression de l'autre ressort, et en ce que le dispositif d'arrêt comprend un organe d'actionnement cinématiquement lié au stator et assurant, d'une part, l'entraínement des éléments de compression et, d'autre part, l'actionnement de l'interrupteur au bout d'une course déterminée et différente pour chaque sens de rotation du stator et des moyens d'inversion des longueurs des courses.The shutter according to the invention is characterized in what the elastic means consist of two springs working in compression between two elements movable compression driven in turn by the stator respectively in each of the senses of rotation, the distance to be traveled by the moving element driven from its resting position, before the compression of one of the springs being greater than the distance to be traveled by the movable element driven before the compression of the other spring, and in that the stop device comprises an actuating member kinematically linked to the stator and ensuring, on the one hand, the training of the compression elements and, on the other hand, the actuation of the switch at the end of determined and different race for each direction of rotation of the stator and means of inversion of lengths of the races.

Lors de la rotation du stator un seul ressort est tout d'abord comprimé, cette compression correspondant à la course la plus faible de l'organe d'actionnement, c'est à dire à l'arrêt du moteur lorsque le volet roulant arrive en butée basse. Lorsque le mobile d'entraínement se déplace dans le sens opposé correspondant à sa course longue, un seul ressort est tout d'abord comprimé, puis ensuite les deux ressorts sont comprimés en offrant une résistance sensiblement plus élevée, cette situation correspondant à l'arrivée du volet roulant en butée haute. L'actionnement des moyens d'inversion des longueurs de course permet d'obtenir le même résultat lorsque le moteur tourne en sens opposé.When rotating the stator only one spring is all compressed, this compression corresponding to the the weakest stroke of the actuator is to say when the engine stops when the roller shutter arrives at the bottom stop. When the training mobile moves in the opposite direction corresponding to his long run, only one spring is first compressed, then the two springs are compressed by offering a significantly higher resistance, this situation corresponds to the arrival of the component rolling in high stop. The actuation of the means reversal of the stroke lengths makes it possible to obtain the same result when the motor is rotating in the opposite direction.

La distance à parcourir par l'élément mobile entraíné avant la compression de l'un des ressorts peut être nulle.The distance to be traveled by the movable element driven before the compression of one of the springs can be nothing.

Les ressorts sont avantageusement hélicoïdaux, de diamètres différents et imbriqués coaxialement l'un dans l'autre. Une telle construction est particulièrement compacte. Pour simplifier la construction, les éléments de compression présentent avantageusement une distance unique entre eux et les ressorts sont de longueurs différentes.The springs are advantageously helical, of different diameters and nested coaxially one in the other. Such a construction is particularly compact. To simplify the construction, the compression elements present advantageously a single distance between them and the springs are of different lengths.

Le ressort comprimé en second est avantageusement précomprimé au repos. Les deux ressorts peuvent être précomprimés. La précompression des ressorts permet de travailler à pente douce avec des courses courtes, ce qui permet de mieux maítriser les forces développées par les ressorts et donc de bénéficier d'une grande précision dans les forces de déclenchement, notamment dans celle du ressort comprimé seul qui ne doit pas être trop importante pour ne pas dégrader le volet roulant. La précompression permet également de réduire l'encombrement du dispositif d'arrêt. The second compressed spring is advantageously pre-compressed at rest. Both springs can be precompressed. The precompression of the springs allows work at gentle slope with short runs, this which allows to better control the developed forces by the springs and thus to benefit from a great accuracy in triggering forces, especially in that of the compressed spring alone which must not be too important not to degrade the component rolling. Pre-compression also reduces the size of the stop device.

L'organe d'actionnement peut être une partie du stator.The actuating member may be a part of the stator.

Selon un mode d'exécution, l'organe d'actionnement est constitué d'un baladeur guidé dans le support'et muni, d'un côté, de deux bras d'entraínement des éléments de compression dans le sens de la compression et, de l'autre côté, de deux bras d'actionnement de l'interrupteur monté entre ces bras et les moyens d'inversion de la longueur des courses sont constitués d'une bascule montée entre les bras d'actionnement de l'interrupteur et munie de deux bras jouant alternativement le rôle de bras d'actionnement de l'interrupteur selon la position de la bascule, l'autre bras étant escamoté relativement à l'interrupteur, le bras actif étant situé entre l'un des bras d'actionnement du baladeur et l'interrupteur.According to one embodiment, the actuating member is consisting of a walkman guided in the support 'and equipped, on one side, two arm drive elements of compression in the direction of compression and, the other side, two actuating arms of the switch mounted between these arms and the means inversion of the length of the races are constituted a rocker mounted between the actuating arms of the switch and provided with two arms playing alternatively the role of actuating arm of the switch according to the position of the rocker, the other arm being retracted relative to the switch, the active arm being located between one of the arms operating the player and the switch.

Selon un perfectionnement de ce mode d'exécution, les bras de la bascule sont flexibles dans une direction parallèle à son axe de pivotement et le dispositif d'arrêt comprend une butée fixe située sur la trajectoire des bras de la bascule, en face de la position ouverte de l'interrupteur, cette butée ayant pour effet d'écarter le bras d'actionnement actif de la bascule de sa trajectoire normale active de manière à le rendre inopérant. Ce perfectionnement empêche le moteur d'être alimenté dans le sens de l'enroulement si l'on tente de relever le volet roulant à la main, par exemple dans le cas d'une tentative d'effraction. According to a refinement of this embodiment, the rocker arms are flexible in one direction parallel to its pivot axis and the device stop has a fixed stop located on the trajectory of the arms of the seesaw, in front of the open position of the switch, this stop having effect of spreading the active actuating arm of the switch from its normal active trajectory so as to render it inoperative. This improvement prevents the motor to be powered in the direction of winding if we try to raise the shutter by hand, by example in the case of an attempted break-in.

Selon un autre mode d'exécution, l'interrupteur est monté entre les bras du baladeur et déplaçable dans la même direction que le baladeur de manière à pouvoir modifier la distance qui le sépare de chacun des bras d'actionnement du baladeur, c'est-à-dire la longueur de la course nécessaire à son actionnement par le baladeur dans chacun des sens de rotation du stator.According to another embodiment, the switch is mounted between the arms of the walkman and movable in the same direction as the walkman so as to be able to change the distance to each of the arms operating the player, that is to say the length of the race necessary for its activation by the player in each direction of rotation of the stator.

Selon un mode d'exécution, les ressorts sont montés dans une cage dont l'une des extrémités présente un bras latéral directement entraíné par le baladeur, l'élément de compression comprimant les autres extrémités des ressorts étant constitué d'une pièce en forme de piston pénétrant dans la cage et dans le ressort le plus fort précomprimé entre les deux extrémités de la cage.According to one embodiment, the springs are mounted in a cage whose one end has a side arm directly driven by the walkman, the compression element compressing the others ends of the springs being constituted by a piece of piston shape penetrating into the cage and into the spring the strongest precompressed between the two ends of the cage.

Le dessin annexé représente, à titre d'exemple, quelques modes d'exécution de l'invention. Pour simplifier, les surfaces cylindriques sont représentées rectilignes, c'est-à-dire développées.

  • La figure 1 représente, à titre de rappel, un moteur tubulaire entraínant une tube d'enroulement de volet roulant.
  • La figure 2 est une vue schématique latérale d'un premier mode d'exécution du dispositif d'arrêt.
  • La figure 3 est une vue en coupe selon III-III de la figure 2.
  • La figure 4 est une vue en coupe selon IV-IV de la figure 2.
  • La figure 5 représente schématiquement les conditions à satisfaire par les ressorts et les éléments de compression.
  • La figure 6 représente schématiquement une variante d'exécution de la figure 2 dans lequel le ressort le plus fort est très comprimé.
  • La figure 7 est une vue partielle en coupe selon VII - VII.
  • La figure 8 illustre une amélioration du mode d'exécution représenté à la figure 2.
  • La figure 9 est une vue latérale selon IX - IX de la figure 8.
  • La figure 10 est une vue schématique d'une deuxième forme d'exécution.
  • La figure 11 est une vue en perspective d'un mode d'exécution de la cage de ressorts.
  • La figure 12 est une autre vue en perspective de cette même cage.
  • La figure 13 est une vue en coupe axiale de la cage représentée aux figures 11 et 12.
  • La figure 14 est une vue schématique analogue à la figure 2 mais dans laquelle est montée une cage selon les figures 11 à 13.
  • La figure 15 illustre une variante du mode d'exécution représenté à la figure 2, dans laquelle l'inverseur est remplacé par deux interrupteurs bistables.
  • La figure 16 représente le schéma électrique de commande du moteur par un inverseur.
  • La figure 17 représente le schéma électrique de commande du moteur par deux interrupteurs bistables.
  • La figure 18 représente le schéma électrique d'une première variante à deux interrupteurs, monostables, appliquée à un schéma traditionnel comprenant un contacteur de commande additionnel.
  • La figure 19 représente le schéma électrique d'une seconde variante à deux interrupteurs, monostables, pilotant un contacteur de commande contenu dans un radiorécepteur.
    • The appended drawing represents, by way of example, some embodiments of the invention. For simplicity, the cylindrical surfaces are represented rectilinear, that is to say developed.
  • Figure 1 shows, as a reminder, a tubular motor driving a winding roller shutter tube.
  • Figure 2 is a schematic side view of a first embodiment of the stop device.
  • FIG. 3 is a sectional view along III-III of FIG.
  • FIG. 4 is a sectional view along IV - IV of FIG. 2.
  • Figure 5 shows schematically the conditions to be satisfied by the springs and the compression elements.
  • Figure 6 shows schematically an alternative embodiment of Figure 2 in which the strongest spring is very compressed.
  • Figure 7 is a partial sectional view along VII - VII.
  • FIG. 8 illustrates an improvement in the embodiment shown in FIG. 2.
  • Figure 9 is a side view along IX - IX of Figure 8.
  • Figure 10 is a schematic view of a second embodiment.
  • Figure 11 is a perspective view of an embodiment of the spring cage.
  • Figure 12 is another perspective view of the same cage.
  • Figure 13 is an axial sectional view of the cage shown in Figures 11 and 12.
  • FIG. 14 is a schematic view similar to FIG. 2 but in which is mounted a cage according to FIGS. 11 to 13.
  • FIG. 15 illustrates a variant of the embodiment shown in FIG. 2, in which the inverter is replaced by two bistable switches.
  • Figure 16 shows the electrical circuit diagram of the motor by an inverter.
  • Figure 17 shows the motor control diagram of the motor by two bistable switches.
  • Figure 18 shows the circuit diagram of a first variant with two switches, monostable, applied to a traditional scheme comprising an additional control contactor.
  • Figure 19 shows the circuit diagram of a second variant with two switches, monostable, driving a control contactor contained in a radio receiver.

    • La figure 1 représente schématiquement un entraínement de volet roulant bien connu, décrit par exemple dans le brevet FR 2 666 842. On reconnaít un tube d'enroulement 1 autour duquel vient s'enrouler un volet roulant. Ce tube d'enroulement 1, partiellement représenté, est porté, du côté représenté, par une couronne 2 montée rotativement sur le carter tubulaire cylindrique 3 d'un moteur réducteur électrique. L'autre extrémité du tube d'enroulement 1 est monté rotativement sur un support non représenté. Le carter 3 est monté sur un support 4 fixé, par exemple, dans l'embrasure d'une fenêtre. Dans le carter tubulaire 3 sont donc montés un moteur électrique associé à un réducteur dont la sortie entraíne une couronne 5 entraínant elle-même le tube d'enroulement 1 en rotation.FIG. 1 schematically represents a drive known roller shutter, described for example in the Patent FR 2,666,842. A winding tube is recognized 1 around which comes rolling a shutter. This winding tube 1, partially shown, is carried on the side represented by a crown 2 mounted rotatively on the cylindrical tubular housing 3 of a electric reducer motor. The other end of the tube 1 is rotatably mounted on a support not shown. The housing 3 is mounted on a support 4 fixed, for example, in the embrasure of a window. In the tubular housing 3 are mounted a motor associated with a reducer whose output causes a crown 5 causing itself the tube winding 1 in rotation.

    Comme c'est le cas des constructions décrites dans les brevets FR 2 790 829 et EP 0 936 342, le carter 3 du moteur, et par conséquent le stator du moteur fixé à ce carter, est relié élastiquement au support fixe 4 de manière à pouvoir tourner légèrement autour de son axe désigné à la figure 1 par la référence 6.As is the case of the constructions described in patents FR 2 790 829 and EP 0 936 342, the casing 3 of motor, and therefore the motor stator set to this casing, is elastically connected to the fixed support 4 of so that you can turn slightly around its axis designated in Figure 1 by the reference 6.

    Cette liaison élastique est représentée aux figures 2 à 4. Dans un logement 7 du support fixe 4 sont montés coaxialement deux ressorts R1 et R2, le ressort R1, plus long que le ressort R2 et de diamètre plus petit étant monté à l'intérieur du ressort R2 lui-même sensiblement plus fort que le ressort R1. Ces ressorts R1 et R2 sont montés entre deux pièces de compression 8 et 9 munies d'une part d'un bras de guidage 8a respectivement 9a montés coulissant librement dans des rainures de guidage 10 et 11 du support fixe 4. Les pièces de compression 8 et 9 sont en outre munies d'un bras latéral 8b, 9b pour leur entraínement respectif par les bras 13 et 14 d'un baladeur 12 solidaire en rotation du carter 3 par un bras 12c (figure 3) et guidé dans le support fixe 4 dans des guidages 15 et 16 de manière à se déplacer parallèlement aux ressorts R1, R2. Ce baladeur 12 présente deux bras parallèles 12a à 12b opposés aux bras 13 et 14. Entre ces bras 12a et 12b est monté le bras 17 d'un interrupteur inverseur 18. Le bras 17 peut occuper trois positions, une position médiane O dans laquelle l'interrupteur est ouvert, une position M dans lequel le moteur est alimenté dans le sens de la montée c'est-à-dire de l'enroulement du volet roulant et une position D dans laquelle le moteur est alimenté dans le sens de la descente c'est à dire du déroulement du volet roulant. Le baladeur 12 porte une bascule 19 articulée autour d'un axe 50 transversalement au baladeur. Cette bascule 19 est munie de deux bras 19a et 19b pouvant venir se placer tour à tour entre les bras 12a et 12b du baladeur de telle manière que, dans cette position, le bras puisse actionner l'interrupteur lors du déplacement du baladeur.This elastic connection is shown in Figures 2 to 4. In a housing 7 of the fixed support 4 are coaxially mounted two springs R1 and R2, the spring R1, longer than the spring R2 and smaller diameter being mounted within the R2 spring itself substantially stronger than the spring R1. These springs R1 and R2 are mounted between two compression parts 8 and 9 provided on the one hand with a guide arm 8a respectively 9a mounted freely sliding in guide grooves 10 and 11 of the fixed support 4. The compression parts 8 and 9 are further provided with a lateral arm 8b, 9b for their respective drive by the arms 13 and 14 of a player 12 integral in rotation of the housing 3 by an arm 12c (Figure 3) and guided in the fixed support 4 in guides 15 and 16 so as to move parallel to the springs R1, R 2 . This player 12 has two parallel arms 12a to 12b opposite the arms 13 and 14. Between these arms 12a and 12b is mounted the arm 17 of an inverting switch 18. The arm 17 can occupy three positions, a central position O in which the switch is open, a position M in which the motor is fed in the direction of the rise that is to say the winding of the shutter and a position D in which the motor is fed in the direction of the descent that is to say the unfolding of the shutter. The player 12 carries a rocker 19 articulated about an axis 50 transversely to the player. This rocker 19 is provided with two arms 19a and 19b can be placed in turn between the arms 12a and 12b of the player so that, in this position, the arm can actuate the switch during the movement of the player.

    Le dispositif est représenté dans sa position de repos. On suppose tout d'abord que le volet roulant est complètement enroulé- Le déroulement est déclenché par la mise de l'interrupteur dans la position D ce qui a pour effet d'alimenter l'enroulement S2 du moteur (figure 16). Lorsque le volet roulant arrive en butée basse, il exerce sur le moteur un couple résistant qui a tendance à entraíner le carter 3 et par conséquent le baladeur 12, lié au carter 3, dans le sens de la flèche F1. Le bras 14 du baladeur exerce une poussée sur le bras 9b de la pièce de compression 9. Lorsque le couple résistant est suffisant pour comprimer le: ressort R1, le baladeur se déplace dans la direction F1 et, au bout d'une certaine course, le bras 19b de la bascule vient rencontrer le bras 17 de l'interrupteur. Au bout d'une course c1 ce bras 17 est amené dans la position O. L'alimentation du moteur est coupée.The device is shown in its rest position. It is assumed first of all that the roller shutter is completely unwound- The process is triggered by setting the switch in the D position which has for effect of feeding the winding S2 of the motor (Figure 16). When the shutter reaches the stop low, it exerts on the engine a resistant couple which tends to cause the casing 3 and consequently the Walkman 12, linked to the housing 3, in the direction of the arrow F1. The arm 14 of the player pushes on the arm 9b of the compression part 9. When the couple resistant is sufficient to compress the: spring R1, the player moves in the direction F1 and, at the end of a certain race, the arm 19b of the rocker comes meet the arm 17 of the switch. After one race c1 this arm 17 is brought to the position O. The motor power is off.

    La commande de l'enroulement du volet roulant se fait en plaçant l'interrupteur dans la position M ce qui a pour effet d'alimenter l'enroulement S1 du moteur (figure 16). Lorsque le volet roulant arrive en butée haute, il exerce sur le moteur un couple résistant qui a tendance à entraíner le baladeur 12 dans le sens de la flèche F2. Ce couple résistant est rapidement suffisant pour que le baladeur 12 entraíne la pièce de compression 8 par son bras 13 en comprimant le ressort R1. La pièce de compression continuant son déplacement comprime ensuite les deux ressorts R1 et R2, l'interrupteur 18 n'étant amené dans la position O que lorsque le bras 12a du baladeur a parcouru la course c2, sensiblement supérieure à la course c1. Dans ce cas, le couple résistant nécessaire à l'actionnement de l'interrupteur est donc sensiblement plus grand que le couple résistant nécessaire pour arrêter le moteur en butée basse.The control of the winding of the shutter is done by placing the switch in the M position which has for effect of feeding the winding S1 of the motor (Figure 16). When the shutter reaches the stop high, it exerts on the engine a resistant torque which tends to drive the player 12 in the sense of arrow F2. This resistant couple is quickly enough for the player 12 to drive the play of compression 8 by its arm 13 by compressing the spring R1. The compression part continuing its displacement then compress the two springs R1 and R2, switch 18 being brought into position O that when the arm 12a of the walkman has traveled the race c2, substantially greater than the stroke c1. In this case, the resistive torque required for the actuation of the switch is therefore substantially larger than the resistant torque needed to stop the engine in low stop.

    Si le moteur 3 avec son support 4 sont montés de l'autre côté de l'embrasure, de telle sorte que le sens de rotation du moteur pour l'enroulement et déroulement est inversé, la bascule 19 est basculée dans la position représentée traits mixtes et c'est alors le bras 19 en position 19a' qui vient actionner l'interrupteur. Les courses c1 et c2 sont donc inversées et le dispositif d'arrêt du moteur est ainsi adapté au changement de sens de rotation du moteur. If the motor 3 with its support 4 are mounted the other side of the doorway, so that the meaning motor rotation for winding and unwinding is reversed, flip-flop 19 is swung into the position represented mixed lines and that's when the arm 19 in position 19a 'which actuates the switch. The races c1 and c2 are therefore reversed and the engine stop device is as well adapted to the change of direction of rotation of the motor.

    A la figure 2, le ressort R1 peut être légèrement précomprimé. Par contre, le ressort R2 n'est pas précomprimé au repos.In Figure 2, the spring R1 may be slightly precompressed. On the other hand, the spring R2 is not pre-compressed at rest.

    Il est toutefois plus avantageux de travailler avec deux ressorts précomprimés, ce qui permet d'utiliser des ressorts à pente douce et de travailler linéairement sur des courses courtes, ce qui permet de mieux maítriser les forces développées par R1 et R2 et donc de bénéficier d'une grande précision dans les forces de déclenchement, notamment dans celles du ressort R1 qui ne doit être trop importante pour ne pas dégrader le volet.It is however more advantageous to work with two springs precompressed, which allows to use springs with gentle slope and work linearly on short strokes, which allows better control the forces developed by R1 and R2 and therefore to benefit from great precision in the triggering forces, particularly in those of R1 spring that should not be too important not to degrade the shutter.

    Les longueurs différentes et les forces différentes des ressorts ne sont pas des conditions nécessaires pour obtenir le résultat désiré. Les ressorts pourraient être de même force. Il suffit que pour une course c1 du baladeur un seul ressort soit comprimé et que pour une course plus longue c2 les deux ressorts soient comprimés. La figure 5 illustre ces conditions pour des éléments de compression 8, 9 comprimant deux ressorts, représentés ici en parallèle. La distance entre les éléments de compression pour chacun des ressorts n'est pas forcément la même. De manière générale pour que le ressort R1 soit tout d'abord comprimé seul, il faut et il suffit que 12 soit supérieur à 11, c'est-à-dire que la distance 12 à parcourir par l'élément de compression entraíné avant qu'il comprime R2 soit supérieure à la distance 11 à parcourir par l'élément de compression avant qu'il comprime R1. Different lengths and different forces of springs are not necessary conditions for get the desired result. Springs could to be of the same strength. It is enough that for a race c1 of a single spring is compressed and that for one longer run c2 both springs are tablets. Figure 5 illustrates these conditions for compression elements 8, 9 compressing two springs, represented here in parallel. The distance between compression elements for each of the springs is not necessarily the same. Generally so that the R1 spring is first compressed alone, it takes and it is sufficient for 12 to be greater than 11, that is to say the distance 12 to travel by the compression element driven before it compresses R2 is greater than the distance 11 to go through the compression element before he compresses R1.

    En général on aura 11 = zéro, c'est-à-dire qu'il n'y a pas de course morte. Le ressort R2 peut être précomprimé ou non. La figure 6 illustre schématiquement une variante d'exécution du mode d'exécution représenté à la figure 2, variante dans laquelle les deux ressorts R1 et R2 sont précomprimés. Le ressort R1 est précomprimé entre les pièces de compression 8 et 9. Le ressort R2 est précomprimé dans une cage 20, plus précisément entre deux paires de fourches 21 et 22 de cette cage mobile guidée dans un guidage 23 du support fixe 4. Ces fourches 21 et 22 laissent passer les pièces de compression 8 et 9. Dans le sens F1, la pièce de compression 9 peut ainsi traverser la fourche 22 pour comprimer le ressort R2 lorsque la fourche 21 arrive en butée et, inversement, la pièce de compression 8 peut traverser la fourche 21 pour comprimer le ressort R2.In general we will have 11 = zero, that is to say that there is no dead race. The spring R2 can be precompressed or not. Figure 6 illustrates schematically a variant of execution mode execution shown in FIG. 2, variant in which two springs R1 and R2 are precompressed. The spring R1 is precompressed between the pieces of compression 8 and 9. The spring R2 is precompressed in a cage 20, more precisely between two pairs of forks 21 and 22 of this mobile cage guided in a guide 23 of the fixed support 4. These forks 21 and 22 let the compression parts 8 and 9 pass. the direction F1, the compression part 9 can thus cross the fork 22 to compress the spring R2 when the fork 21 comes to a stop and, conversely, the compression part 8 can cross the fork 21 to compress the spring R2.

    Les figures 8 et 9 illustrent schématiquement un perfectionnement du premier mode d'exécution ou de sa variante évitant la réalimentation du moteur dans le sens de la montée si, une fois le volet arrêté en position basse, il est soulevé à la main par sa dernière lame, par exemple lors d'une tentative d'effraction. Dans ce cas, si l'on considère la figure 2, la poussée sur le volet roulant exerce sur le moteur un couple dans le sens de la flèche F1, c'est à dire un couple dont le sens est le même que le couple résistant qui a provoqué l'arrêt du moteur. Le baladeur 12 va donc faire basculer l'interrupteur dans la position M ce qui provoque l'enroulement du volet roulant. Pour empêcher ceci, le baladeur 12 est équipé d'une bascule 19 dont les bras sont flexibles au moins dans une direction parallèle à l'axe d'articulation de la bascule et sur le support 4 est fixée une butée 24 présentant, de chaque côté, une rampe 24a, 24b, et placée, entre les bras du baladeur 12, sur la trajectoire du bras actif de la bascule 19, par exemple le bras 19b. Le sommet de la butée 24 est en outre en face de la position O de l'interrupteur 18. Le volet roulant étant déroulé en position basse et à l'arrêt, l'interrupteur 18 est dans la position O. Lors du soulèvement du volet roulant le bras 19b de la bascule rencontre la rampe 24b qui écarte le bras de sa trajectoire normale comme représenté par la flèche F3, de telle sorte qu'il ne rencontre pas le bras 17 de l'interrupteur et que le moteur n'est pas alimenté.Figures 8 and 9 schematically illustrate a improvement of the first mode of execution or its variant avoiding the refueling of the engine in the sense of climb if, once the shutter stopped in low position, he is raised by hand by his last blade, for example during an attempt burglary. In this case, if we consider the figure 2, the thrust on the roller shutter exerts on the engine a couple in the direction of arrow F1, ie a torque whose meaning is the same as the resistant torque which caused the engine to stop. The player 12 goes so switch the switch to the M position which causes the shutter to be wound up. For prevent this, the player 12 is equipped with a rocker 19 whose arms are flexible at least in one direction parallel to the axis of articulation of the rocker and on the support 4 is fixed a stop 24 having, on each side, a ramp 24a, 24b, and placed, between the arms of the player 12, on the trajectory of the active arm of the rocker 19, for example the arm 19b. The top of the abutment 24 is furthermore face of the switch position 18. The shutter rolling being unrolled in the down position and stopped, switch 18 is in the O position. lifting the roller shutter the arm 19b of the rocker meets the ramp 24b which spreads the arm of his normal trajectory as represented by the arrow F3, so that he does not meet the arm 17 of switch and the motor is not powered.

    L'inversion des longueurs de course c1 et c2 peut également être obtenue en déplaçant l'interrupteur. Cette variante est représentée à la figure 10. L'interrupteur 18 est monté dans un support mobile 25 pouvant être déplacé dans un logement 26 du support fixe 4. Le support mobile 25 est muni de bras de guidage coulissant dans un guidage du support fixe 4. Le support mobile 25 est utilisé en butée contre l'une ou l'autre des extrémités du logement 26.The reversal of stroke lengths c1 and c2 can also be obtained by moving the switch. This variant is represented in FIG. The switch 18 is mounted in a movable support 25 movable in a housing 26 of the support fixed 4. The movable support 25 is provided with arms of sliding guide in a guide of the fixed support 4. The mobile support 25 is used in abutment against one either end of the housing 26.

    Un mode d'exécution pratique de la partie du dispositif d'arrêt concernant les ressorts R1 et R2 est représenté aux figures 11 à 13.A practical mode of execution of the part of the device for the springs R1 and R2 is shown Figures 11 to 13.

    Les ressorts R1 et R2 sont montés dans une cage 27 constituée d'une paroi transversale 28 formant le fond de la cage et de ceux bras 29 et 30 s'étendant à partir de la paroi 28 parallèlement à l'axe des ressorts et reliés, près de leurs extrémités, par un arceau 31. Les extrémités des bras 29 et 30 se terminent par 2 parois 32 et 33 parallèles entre-elles et à l'axe des ressorts. Le ressort R2 est précomprimé entre le fond 28 de la cage et le bord des parois 32 et 33. Du fond 28 s'étend en outre une partie tubulaire 34 entourée par le ressort R2. Cette partie tubulaire sert au guidage du ressort R1 engagé librement dans cette partie 34 pour venir s'appuyer entre le fond 28. A la hauteur du fond 28, le bras 30 de la cage est coudé deux fois à angle droit de manière à former une patte radiale 37 pour l'entraínement de la cage par le baladeur 12.The springs R1 and R2 are mounted in a cage 27 consisting of a transverse wall 28 forming the bottom of the cage and those arms 29 and 30 extending from of the wall 28 parallel to the axis of the springs and connected near their ends by a hoop 31. The ends of arms 29 and 30 end with 2 walls 32 and 33 parallel to each other and to the axis of springs. The spring R2 is precompressed between the bottom 28 of the cage and the edge of the walls 32 and 33. From the bottom 28 further extends a tubular portion 34 surrounded by the spring R2. This tubular part serves to spring guide R1 freely engaged in this part 34 to come to rest between the bottom 28. At the height of the bottom 28, the arm 30 of the cage is cranked twice at a right angle to form a paw radial 37 for the drive of the cage by the walkman 12.

    Dans le ressort R2 est en outre engagée une pièce 35 en forme de piston creux au fond duquel s'appuie l'autre extrémité du ressort R1. Cette pièce 35 présente une tête 36 de diamètre supérieur au corps du piston 35 mais coupée par deux méplats parallèles de telle manière que la tête 36 puisse passer entre les parois 32 et 33 de la cage. La tête 36 peut donc venir comprimer le ressort R2.In the spring R2 is further engaged a piece 35 in hollow piston shape at the bottom of which is supported by the other end of the spring R1. This piece 35 presents a head 36 of greater diameter than the piston body 35 but cut by two parallel flats of such way that the head 36 can pass between the walls 32 and 33 of the cage. The head 36 can therefore come compress the spring R2.

    L'utilisation de la cage représentée aux figures 11 à 13 dans un dispositif d'arrêt selon la figure 2, est représentée schématiquement à la figure 14. Le bras 13 du baladeur 12 vient s'appuyer directement sur la tête 36 du piston 35 lequel, au repos, est en outre en appui contre le support fixe 4. Le bras radial 34 est entraínable par le bras 14 du baladeur. Le bras 29 de remonter on place l'interrupteur 18" sur la position de montée M.The use of the cage shown in FIGS. 13 in a stop device according to Figure 2, is shown schematically in Figure 14. The arm 13 of the player 12 comes to lean directly on the head 36 of the piston 35 which, at rest, is further supported against the fixed support 4. The radial arm 34 is drivable by the arm 14 of the walkman. The arm 29 of back up the switch 18 "to the position of rise M.

    Au lieu d'interrupteurs bistables on peut utiliser des interrupteurs monostables en adaptant le circuit de commande.Instead of bistable switches one can use monostable switches by adapting the circuit of ordered.

    Dans le schéma représenté à la figure 18 on utilise deux interrupteurs monostables 118' et 118", fermés en position de repos, en association avec un commutateur de commande 119. Les interrupteurs 118' et 118" correspondent aux interrupteurs de coupure d'un schéma traditionnel.In the diagram shown in Figure 18 we use two monostable switches 118 'and 118 ", closed in rest position, in association with a switch 119. Switches 118 'and 118 " correspond to the cut-off switches of a diagram traditional.

    Dans le schéma représenté à la figure 19, les interrupteurs monostables 218' et 218" sont ouverts en position de repos. Ils pilotent un contacteur de commande de l'installation contenu dans un radiorécepteur 219. Le contacteur peut donc également être commandé par un émetteur.In the diagram shown in Figure 19, the monostable switches 218 'and 218 "are open in rest position. They fly a contactor control of the installation contained in a radio receiver 219. The contactor can therefore also be controlled by a transmitter.

    Claims (17)

    1. A motorized roller shutter or the like comprising an electric drive motor (3) the stator of which is connected to a fixed support via elastic means which oppose the rotation of the stator under the effect of the resistive torque exerted by the roller shutter moving between a rolled-up up position and an unrolled down position, stop means stopping the roller shutter in these up and down positions and means of controlling the stopping of the motor in these up and down positions comprising at least one switch (18; 18', 18'' ; 118', 118'' ; 218 ' , 218'') the opening of which is actuated by the rotation of the stator when the resistive torque exceeds the retaining force exerted by the elastic means, characterized in that the elastic means consist of two springs (R1, R2) working in compression between two moving compression elements (8, 9; 36, 28) driven in turn by the stator respectively in each of the directions of rotation, in that the distance (12) to be covered by the driven compression element, from the rest position, before one of the springs (R2) is compressed, exceeds the distance (11) to be covered by the driven compression element before the other spring (R1) is compressed, and in that the stopping device comprises a moving actuating part (12) kinematically linked to the stator and, on the one hand, driving the compression elements and, on the other hand, actuating the switch (18; 18', 18"'; 118', 118" ; 218', 218'') after a determined travel (c1, c2) which differs for each direction of rotation of the stator and means (19; 25) of reversing said travels (c1, c2).
    2. The roller shutter as claimed in claim 1, characterized in that the springs (R1, R2) are coaxially mounted one inside the other.
    3. The roller shutter as claimed in claim 2, characterized in that at least the spring (R2) for which the distance to be covered by the compression element before the spring is compressed is the longest is preloaded at rest.
    4. The roller shutter as claimed in claim 2 or 3, characterized in that the moving actuating part consists of a traveler (12) guided in the fixed support (4) and equipped, on one side, with two arms (13, 14) for driving the compression elements in the compression direction and, on the other side, with two arms (12a, 12b) for actuating the switch (18) which is mounted between these arms and in that the means of reversing the travels consist of a rocker (19) mounted between the actuating arms of the traveler and equipped with two arms (19a, 19b) which act alternately as arm for actuating the switch depending on the position of the rocker, the other arm being retracted relative to the switch, the active arm being situated between one of the actuating arms of the traveler and the switch.
    5. The shutter as claimed in claim 4, characterized in that the arms (19a, 19b) of the rocker are flexible in a direction parallel to its axis of pivoting and in that the stopping device comprises a fixed stop (24) situated in the path of the arms of the rocker, facing the open position (O) of the switch, this stop having the effect of moving the active actuating arm of the rocker away from its normal active path so as to make it inoperative.
    6. The roller shutter as claimed in one of claims 2 or 3, characterized in that the moving actuating part consists of a traveler (12) guided in the fixed support (4) and equipped, on one side, with two arms (13, 14) for driving the compression elements in the compression direction and, on the other side, with two arms (12a, 12b) for actuating the switch which is mounted between these arms and in that the switch is mounted on a support (25) that can move in the same direction as the traveler, between two working positions, so as to be able to alter the distance separating the switch from each of the actuating arms of the traveler, that is to say to modify the length of the travel needed to actuate it using the traveler in each of the directions of rotation of the stator.
    7. The roller shutter as claimed in one of claims 4 to 6, characterized in that the two springs (R1, R2) are preloaded and in that the springs are mounted in a cage (20) which is open on at least one side for the passage of the compression elements and has two rests (21, 22) between which one (R2) of the springs is compressed, the other spring (R1) being preloaded between the compression elements (8, 9).
    8. The roller shutter as claimed in one of claims 4 to 6, characterized in that the two springs (R1, R2) are mounted coaxially in a cage (27) which has, at one of its ends, a transverse wall (28) against which one of the ends of the two springs bears and, at its other end, a rest (32, 33) for one of the springs (R2) preloaded between said wall and this rest, one of the compression elements consisting of a radial arm (37) of the cage, the other compression element consisting of a part in the form of a piston (35) sliding axially in the cage and in the preloaded spring and against which the other end of the other spring (R1) rests, this piston-shaped part being equipped with a head (36) which compresses the spring (R2) as it enters the cage.
    9. The roller shutter as claimed in claim 8, characterized in that the cage (27) is further formed of two arms (29, 30) extending from the transverse wall (28) parallel to the axis of the springs and connected by at least one bow (31).
    10. The roller shutter as claimed in claim 9, characterized in that one of the arms (29) acts as a member for guiding the cage.
    11. The roller shutter as claimed in one of claims 1 to 10, characterized in that the distance of the spring supports on the moving compression elements is the same for the two springs and that these two springs have different lengths.
    12. The roller shutter as claimed in claim 11, characterized in that the springs have different stiffnesses.
    13. The roller shutter as claimed in one of claims 1 to 12, characterized in that the switch of the control means consists of an inverter (18).
    14. The roller shutter as claimed in one of claims 1 to 12, characterized in that the control means comprise two bistable switches (18' 18'') one assigned to each of the directions of rotation of the motor.
    15. The roller shutter as claimed in one of claims 1 to 12, characterized in that the control means comprise two monostable switches (118', 118''; 218', 218'').
    16. The roller shutter as claimed in claim 15, characterized in that the monostable switches (118', 118'') are circuit breakers.
    17. The roller shutter as claimed in claim 15, characterized in that the monostable switches (218', 218'') are open in the rest position and associated with a radio receiver (219).
    EP01908025A 2000-02-21 2001-02-19 Powered rolling shutter equipped with automatic stopping means Expired - Lifetime EP1259696B1 (en)

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    FR0002109 2000-02-21
    FR0002109A FR2805307B1 (en) 2000-02-21 2000-02-21 MOTORIZED SHUTTER EQUIPPED WITH AUTOMATIC STOPPING MEANS
    PCT/IB2001/000221 WO2001061139A1 (en) 2000-02-21 2001-02-19 Powered rolling shutter equipped with automatic stopping means

    Publications (2)

    Publication Number Publication Date
    EP1259696A1 EP1259696A1 (en) 2002-11-27
    EP1259696B1 true EP1259696B1 (en) 2005-11-16

    Family

    ID=8847193

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01908025A Expired - Lifetime EP1259696B1 (en) 2000-02-21 2001-02-19 Powered rolling shutter equipped with automatic stopping means

    Country Status (10)

    Country Link
    US (1) US6814129B2 (en)
    EP (1) EP1259696B1 (en)
    JP (1) JP4777576B2 (en)
    CN (1) CN1214175C (en)
    AT (1) ATE310150T1 (en)
    AU (1) AU2001235884A1 (en)
    DE (1) DE60114995T2 (en)
    ES (1) ES2201945T3 (en)
    FR (1) FR2805307B1 (en)
    WO (1) WO2001061139A1 (en)

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    FR2830061B1 (en) * 2001-09-21 2003-12-19 Somfy ELASTIC COUPLING DEVICE FOR ALIGNING TWO ROTATING WORKPIECES
    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
    FR2837865B1 (en) * 2002-03-28 2005-07-29 Simu MANUFACTURING MECHANISM AND CLOSURE OR SOLAR PROTECTION INSTALLATION INCORPORATING SUCH A DEVICE
    AUPS224902A0 (en) * 2002-05-13 2002-06-13 Ozroll Ip Pty Ltd A shutter assembly
    FR2855205B1 (en) * 2003-05-23 2005-07-08 Somfy Sas DRIVE DEVICE FOR ROLLER SHUTTER OR THE LIKE
    US20050045283A1 (en) * 2003-09-03 2005-03-03 Hsieh Chung Hsien Rolling door error-start prevention device
    FR2861513B1 (en) 2003-10-24 2006-03-10 Somfy DEVICE FOR CONTROLLING THE DISPLACEMENT OF A ROLLING SHUTTER.
    JP4738104B2 (en) * 2005-09-01 2011-08-03 三井金属アクト株式会社 Driving device for vehicle opening / closing body
    US8307878B2 (en) 2009-01-14 2012-11-13 Hunter Douglas Inc. Noise dampening motor drive system for retractable covering for architectural openings
    NZ594277A (en) 2009-02-09 2013-03-28 Hunter Douglas Ind Bv Constant force helical torsion spring system for roller blinds
    FR2945314B1 (en) * 2009-05-05 2011-07-01 Somfy Sas TUBULAR ACTUATOR FOR DRIVING A SHUTTER
    US8944138B2 (en) * 2011-11-18 2015-02-03 Creston Electronics Inc. System for coupling a roller shade and shade motor
    FR2984394B1 (en) * 2011-12-16 2014-01-24 Eveno Sas IMPROVEMENT TO OCCULTATION DEVICES FOR A BUILDING BAY
    NL1039407C2 (en) 2012-02-27 2013-08-28 Hunter Douglas Ind Bv Architectural covering having a drive mechanism for extending and retracting a covering member between opposite first and second end positions.
    CA2966651C (en) 2014-11-10 2023-03-14 Hunter Douglas Inc. Covering for an architectural opening including multiple stage spring assembly
    KR101739005B1 (en) * 2014-12-31 2017-05-23 주식회사 효성 Spring operation device of circuit breaker
    DE102015118492A1 (en) * 2015-10-29 2017-05-04 Becker-Antriebe Gmbh Device for the end stop of a motor drive device of a winding shaft of a roller shutter

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    US4059339A (en) * 1976-01-08 1977-11-22 Knox Manufacturing Co. Brake mechanism for motor driven projection screen
    US4372367A (en) * 1979-06-12 1983-02-08 Baldanello U Roller blinds
    FR2666842B1 (en) 1990-09-17 1992-11-20 Somfy WINDING DEVICE WITH TUBULAR MOTOR FOR BLINDS, ROLLER SHUTTERS OR THE LIKE.
    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
    FR2740824B1 (en) 1995-11-07 1998-01-23 Somfy MOTORIZED CLOSURE OR SUN PROTECTION INSTALLATION
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    Also Published As

    Publication number Publication date
    ES2201945T1 (en) 2004-04-01
    CN1404545A (en) 2003-03-19
    CN1214175C (en) 2005-08-10
    JP4777576B2 (en) 2011-09-21
    WO2001061139A1 (en) 2001-08-23
    EP1259696A1 (en) 2002-11-27
    ES2201945T3 (en) 2006-05-16
    US6814129B2 (en) 2004-11-09
    JP2003529001A (en) 2003-09-30
    DE60114995D1 (en) 2005-12-22
    ATE310150T1 (en) 2005-12-15
    US20030000657A1 (en) 2003-01-02
    AU2001235884A1 (en) 2001-08-27
    FR2805307B1 (en) 2002-05-24
    FR2805307A1 (en) 2001-08-24
    DE60114995T2 (en) 2006-07-27

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