EP0371170B1 - Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues - Google Patents

Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues Download PDF

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Publication number
EP0371170B1
EP0371170B1 EP19880202731 EP88202731A EP0371170B1 EP 0371170 B1 EP0371170 B1 EP 0371170B1 EP 19880202731 EP19880202731 EP 19880202731 EP 88202731 A EP88202731 A EP 88202731A EP 0371170 B1 EP0371170 B1 EP 0371170B1
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EP
European Patent Office
Prior art keywords
roller
rolling
wheel
box
wall
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
EP19880202731
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German (de)
English (en)
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EP0371170A1 (fr
Inventor
Fabio Farne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asa Motoriduttori SNC
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Asa Motoriduttori SNC
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Publication date
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Priority to EP19880202731 priority Critical patent/EP0371170B1/fr
Priority to DE8888202731T priority patent/DE3880491D1/de
Publication of EP0371170A1 publication Critical patent/EP0371170A1/fr
Application granted granted Critical
Publication of EP0371170B1 publication Critical patent/EP0371170B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/88Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • E06B9/74Operating devices or mechanisms, e.g. with electric drive adapted for selective electrical or manual operation
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/68Operating devices or mechanisms, e.g. with electric drive
    • E06B2009/6809Control
    • E06B2009/6872Control using counters to determine shutter position
    • E06B2009/6881Mechanical counters

Definitions

  • the invention is related to rolling up devices for rolling elements such as blinds, curtains, awnings or the like, comprising: a rolling up roller fitted with fixing means for one of said elements, an electric motor located inside the roller for rotation thereof around its own symmetry axis; a pivot at a first end of said roller to allow said rotation; a box at the second end of the roller for cooperating with said pivot to support the roller; a bushing supported by the second end of the roller to transmit it the rotations provided by the motor; stop devices to stop movements of the motor at two predetermined positions, both when the rolling element rolls up and when it unrolls, said devices being provided, further, with electric control means for the motor at the disposal of an operator, for example with a push-button.
  • the present invention is related to a control device for stopping the motor at predetermined positions of the rolling element and to safety means to prevent the device from being damaged when it is operated manually or when it is necessary to set the stops.
  • this kind of rolling up devices is provided with means for manual operation for when the current fails or when the motor is broken; it is also known that these devices are provided with stops for automatic set of up-or unrolling abutments of the rolling elements; said means being displaceable as a function of the dimensions of the rolling device.
  • FR -A - 2 599 524 refers to an automatic stopping device for an electric motor which moves a rolling element from a first rolled-up position to a second unrolled position of said rolling element and vice-versa; the device comprises two micro-switches which correspond, respectively, to the first and second position of the rolling element and which cooperate, respectively, with a stopping element to intercept the feed of the motor when the rolling element is in said first or second position.
  • the device presents also advancement means acting the linear advancement of the micro-switches and of the stopping elements, which means are connected to the rolling element and adjustment means which act to change to positions between each micro-switch and its own stopping element aside from the position of the rolling element.
  • this device presents a reference signaller which records the position of a stopping element or a micro-switch between a first stopping position which corresponds with the unrolling position of the rolling element and a second stopping position which corresponds to the rolling position of the rolling element and means to copy the position recorded by the signaller at a point located between the next stopping element and its own micro-switch.
  • the main disadvantage of this known device is that it must have two worms which must have two opposite rolling up directions to allow opposite rotation of the two gears; this entails: a great encumbrance dimension of the device with respect to the diameter of the rolling up roller; an expensive assembly of the two worms and a complicated connection system between the bushing and the micro-switches.
  • the transmission of the movement from the roller to the gears entails a first slack between the roller and the gears and a second slack between the gears and the worm; consequently said transmission may be indeterminate because of these slacks which prevent from having a right and constant correspondence between the angular positions both of the roller and of the gears.
  • said device is suitable for assembling metallic shutters, which prevent the elements acting on the micro-switches from being located on sight.
  • EP 0 221 826 refers to a stopping device to control automatically rollers for curtains, wherein two operating elements for two micro-switches are moved in two opposite directions by two worms to which are connected, the worms being rotated by a crown gear kinematically connected to said worms. Also in this device the worms must have two opposite rolling up directions to allow opposite rotation of the two operating elements. But the main disadvantage of the device is that the adjustment of the operating elements with respect to the micro-switches is not gradual because of two disengageable elements disposed between the crown gear and the worms, which elements act separately to connect or disengage the worms from the crown gear. Thus the right position of the operating elements with respect to the micro-switches is reached by the put and take tecnique.
  • the present invention is intended to remedy these drawbacks. It solves the problem of creating a rolling up device for rolling elements such as blinds, curtains, awnings or the like.
  • a device according to the present invention the following results are achieived: the up-and unrolling stops of the rolling element are set very easily.
  • the advantages offered by the invention are mainly that the device is prevented from being damaged in case of manual work or during set of the stops. Furthemore the encumbrance dimensions of the device are minimized to control rolling up rollers having a diameter rather small.
  • the figures show a rolling up device for rolling elements such as blinds, curtains, awnings or the like and parts thereof.
  • Fig.1 shows schematically a device according to the invention including a box 1, adapted to be fixed for example to a wall by known means and which houses manual work means, not shown, to operate a rolling up roller 2 fitted with engaging means for an end of a rolling element, not shown; said work means are subject of the French Patent Application No.2 561 303 filed by the Applicant to which reference is made for comprehension thereof.
  • roller 2 houses an electric motor 6 whose stator, not shown, is structurally connected to box 1 for not rotate with respect to a fixed frame of reference to which said box 1 is connected.
  • the rotor of the motor 6 is kinematically connected to a shaft 7, angularly integral with a wheel 8 which is in turn integral with roller 2 by known means, not shown (pins, drive fits or the like).
  • Motor 6 is electrically connected with a control power unit adapted, as known, to control the functioning state of the motor 6 and in particular to define the rotation directions and the stopping state thereof.
  • roller 2 is angularly integral, by a spline 12, with a bushing 13 supported by a hub 14 which is part of box 1.
  • Bushing 13 has an internal toothing 15 adapted to mesh with an external toothing 16 of a wheel 17, free to rotate around a pivot 18 supported by a supporting means provided in a wall 19 of the box 1.
  • a pivot 18 is integral with a worm 20 supported by a supporting means provided in a wall 21 at a second end of worm 20.
  • Worm 20 is fitted with a first groove 22, substantially at the middle of the whole length thereof, groove 22 is able to house a first stopping ring 23 for two gear wheels 24 and 25 fitted with through holes 26 and 27, respectively; said through holes being threaded and being able to screw in the threading of worm 20.
  • Worm 20 is fitted also with a second groove 50, placed near the wall 19 and able to house a second stopping ring 51 for wheel 24, a third groove 52, adapted to house a third stopping ring 53 for wheel 25 being made in worm 20 near wall 21.
  • Wheels 24 and 25 have external toothings for mesh on identical external toothings made in first toothed roller 28 and in a second toothed roller 29, respectively.
  • Wheel 24 has a first invitation bevel 60 to operate a push-button 35, of the micro-switch 10, gently; a second bevel 61 is made in wheel 25 to operate a push-button, not shown, of micro-switch 11; said first and said second bevels 60 and 61 being located on the relevant wheels 24 and 25 facing each other.
  • the first and the second roller 28 and 29 are supported by a first and a second supporting arms 30 and 31, respectively, which are in turn supported by supporting elements provided in the walls 19 and 21; said roller 28 developing approximately from said wall 19 to said ring 23; said roller 29 developing approximately from said ring 23 to said wall 21.
  • a supporting means provided in the wall 21 supports a beam structure 32 (better shown in Fig.4) adapted to support said first an second micro-switches 10 and 11.
  • motor 6 rotates roller 2 to the direction of arrow A
  • the rotation movement is transmitted to the bushing 13 fitted with the spine 12 and to the worm 20 which feeds towards the direction A the wheels 24 and 25 whose rotation is avoided by the mesh with toothing of rollers 28 and 29, respectively; said rollers being prevented from rotating by a kinematic motion which will be described below.
  • wheel 24 When, for example, wheel 24 is in contact with push-button 56 of micro-switch 10, the latter sends to the power unit an electrical signal to stop motor 6 and to reverse its polarity to enable it to rotate to the opposite direction after a subsequent manual operation on the push-button at the disposal of the operator.
  • motor 6 rotates to the opposite direction, indicated by arrow B in Figs..1 and 3, the movement of wheel 25 to the direction B allows to reach a push-button, not shown, of the micro-switch 11 enabling the latter to send to the power unit an electric signal to stop the motor 6 and to reverse its polarity.
  • Two identical mechanisms, shown in Figs. 3, 4, 5 and 6 are provided to define reference positions of wheels 24 and 25 with respect to the relevant micro-switches 10 and 11.
  • Fig.4 in which one of these mechanisms includes a pair of conic wheels 36 and 37 engaging each other.
  • Wheel 36 is integral with a shaft 28 supported by a supporting means provided in a wall 40 of box 1; said shaft 38 having an end in which an hexagonal hole is made for introduction of a operation tool.
  • Wheel 36 is integral with a shaft 33 supported by a supporting means provided in a wall 41 of box 1 and which is fitted with a toothed end 42 able to mesh on the toothed roller 28.
  • wheel 24 By rotating wheel 36, by means of the tool, to the direction E, the same rotation direction is transmitted to wheel 42 which in turn transmitts an opposite motion to roller 28, wheel 24 is dragged rightward and approaches micro-switch 10, in a similar manner wheel 25 is positioned with respect to micro-switch 11.
  • the device according to the present invention is fitted with two safety systems the first of which is intended to prevent wheels 24 and 25 from being damaged in case of manual operation on bushing 13.
  • the supporting shafts 30 and 31 inflect resiliently under the effort applied by the tangential force of one of the two wheels 24 or 25 abutting on the stopping ring 29.
  • the inflection enables one of the wheels 24 or 25 to exit from the toothed profile of roller 28 or 29 by moving away the pitch lines and by allowing the external circumpherence to displace tagentially thus slipping one on the other. This concept is visually expressed in Fig.7.
  • the second safety system avoids damage to the pairs of conic wheels 37 and 38.
  • wheel 24 When, for example, wheel 24 abuts on the stopping ring 51, it is not possible to achieve a sufficient inflection of shaft 30 to permit tangency between the external circumpherences of wheel 24 and roller 28. Nevertheless, wheel 24 transmits to roller 28 the rotation which is transmitted to conic wheels 36 and 37 by toothed end 42 and shaft 33. In this manner, even if the axial movement of wheel 24 stops, the device is not subject to damage because of the rotation movement allowed to the wheel 24. An identical function occurs for wheel 25 when it abuts on ring 53.
  • the adjustment of the position of wheels 24 and 25 relative to micro-switches 10 and 11 is obtained by acting directly on the supporting shafts 30 and 31 supported by supporting elements provided in the walls 19 and 21.
  • One of the ends of each shaft 30 and 31 is provided with an operating element such as a slot or the like at at least one of the supports ends of the same shafts 30 and 31 is fitted with a brake element, for example, with a light drive fit, between the support hole and the end of the shaft.

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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)
  • Gear Transmission (AREA)

Claims (5)

  1. Dispositif enrouler pour éléments enroulables tels que stores, volets roulants ou analogues, comprenant: un rouleau d'enroulement (2) équipé d'éléments entraînant une extrémité d'un élément enroulable; un caisson (1), pouvant être fixé au mur à l'aide d'outillage courant, contient les outils de manoeuvre manuelle, de type connu, pour actionner le rouleau d'enroulement (2), une extrémité (3) du rouleau d'enroulement(2) étant fermée et opposée à l'extrémité qui est supportée par une partie du caisson (1), l'extrémité (3) ayant une forme adéguate pour soutenir un axe (4) enfilé dans un support (5) fixé par exemple à u mur pour permettre la rotation du rouleau (2) par rapport à un système de référence fixe avec le caisson (1); un moteur électrique (6) logé à l'intérieur du rouleau (2), muni d'un stator relié par sa structure au caisson (1) de manière à ne pas tourner par rapport au caisson (1), le moteur ayant un rotor qui tourne avec un arbre (7) solidaire d'une roue (8), solidaire à son tour du rouleau (2); une unité centrale de commande (9) qui contrôle l'état de fonctionnement du moteur (6) pour définir les sens de rotation et l'état d'arrêt, l'unité (9) étant reliée à un premier et à un deuxième micro-interrupteur (10,11) et à une touche mise à la disposition de l'operateur pour faire marcher le moteur (6); des éléments mobiles (24,25), qui agissent sur les micro-interrupteurs (10,11); une douille (13), supportée par une pièce (14) adaptée au caisson (1), la douille (13) étant munie d'une clavette (12) pour assurer la solidarité angulaire entre le rouleau (2) et la douille (13), qui présente une denture intérieure (15) pouvant engrener dans la denture extérieure (16) d'une roue (17) solidaire d'un axe (18), supporté par une paroi (19) du caisson (1), caracterisé en ce qu'il présente également: une vis sans fin (20), à solidarité angulaire avec la roue (17), la vis sans fin (20) présentant une première gorge (22) où est logée une bague de butée (23) pour arrêter les movements axiaux de deux éléments mobiles (24,25), munis respectivement, d'orifices de part en part (26,27), filetés et qui se vissent dans le filetage de la vis sens fine (20); un premier et un deuxième rouleau denté (28,29), munis de dentures qui engrènent dans la denture des éléments mobiles (24,25); un premier et un deuxième arbre de soutien (30,31) pour supporter un premier et un deuxième rouleau (28,29), les arbres de soutien (30,31) étant munis de moyens qui arrêtent la rotation des arbres (30,31) pour arrêter la rotation des roues (24,25), pour déplacer les éléments mobiles (24,25) dans la même direction (E,D) par rapport aux micro-interrupteurs (10,11), les dentures des éléments mobiles (24,25) engrènent avec les arbres (30,31), qui sont mis en mouvement pa la vis sans fin (20), le rouleau (28) s'étendant environ de la paroi de support (19) à la bague de butée (23), le rouleau (29) s'étendan approximativement de la bague de butée (23) à une paroi (21) qui supporte la vis sans fin (20) et les arbres (30,31); des éléments de manoeuvre pour definir la position des éléments mobiles par rapport aux micro-interrupteurs (10,11); un premier système de sécurité pour empêcher d'endommager les roues (24,25) en cas de manoeuvres manuelles du rouleau (2); un deuxième système de sécurité pour éviter d'abîmer les éléments de manoeuvre.
  2. Dispositif enrouler selon la revendication 1, caracterisé en ce que le premier système de sécurité est constitué par les arbres de soutien (30,31), qui sont flexibles sous l'effort transmis par la force tangentielle de l'une des roues (24,2) arrivant contre la bague de butée (23) pour permettre à la roue (24,25) de sortir du profil denté de l'un des rouleaux (28,29) en éloignant les primitives et en permettant aux circonférences extérieures de prendre une orentation tangentielle pour glisser l'une sur l'autre.
  3. Dispositif enrouler selon la revendication 1, caracterisé en ce que les éléments de manoeuvre sont constitué par une paire de roues coniques (36,37) qui engrènent entre elles; la roue (36) étant solidaire d'un petit arbre (38), supporté par une paroi (48) du caisson (1); l'arbre (38) présentant une extrémité dans laquelle est réalisé un perçage hexagonal pour la mise en place d'un outil de manoeuvre; la roue (37) étant solidaire d'un petit arbre (33) supporté par des éléments de support sur une paroi (41) du caisson (1), l'arbre (33) présentant une extrémité dentée (42) qui engrène sur le rouleau (28).
  4. Dispositif enrouler selon les revendications 1 et 3, caracterisé en ce que le deuxième système de sécurité comprend un joint elastique (43) qui définit la position exacte de la roue (37) par rapport à la roue (38), qui permet l'engrènement correct entre les primitives correspondantes; le joint elastique (43) étant en mesure de fléchir sous les efforts excessifs transmis par la roue (38) à la roue (37) pour permettre d'éloigner les primitives des deux roues (37,38) jusqu'à ce que les circonférences extérieures de ces roues prennent une orentation tangentielle de manière à glisser l'une sur l'autre.
  5. Dispositif enrouler selon les revendications 1 et 3, caracterisé en ce que la vis sans fin (20) présente une deuxième et une troisième gorge (50,51) où sont respectivement logées une deuxième et une troisième bague de butée (52,53), la deuxième gorge (50) étant disposée à proximité de la paroi (19) et la troisième gorge (51) à proximité de la paroi (22).
EP19880202731 1988-11-30 1988-11-30 Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues Expired - Lifetime EP0371170B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19880202731 EP0371170B1 (fr) 1988-11-30 1988-11-30 Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues
DE8888202731T DE3880491D1 (de) 1988-11-30 1988-11-30 Antriebsvorrichtung zur betaetigung von jalousien, rollaeden, stores und dergleichen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880202731 EP0371170B1 (fr) 1988-11-30 1988-11-30 Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues

Publications (2)

Publication Number Publication Date
EP0371170A1 EP0371170A1 (fr) 1990-06-06
EP0371170B1 true EP0371170B1 (fr) 1993-04-21

Family

ID=8199881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880202731 Expired - Lifetime EP0371170B1 (fr) 1988-11-30 1988-11-30 Dispositif enrouleur pour éléments enroulables tels que stores, volets roulants ou analogues

Country Status (2)

Country Link
EP (1) EP0371170B1 (fr)
DE (1) DE3880491D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9113428D0 (en) * 1991-06-20 1991-08-07 Desrochers Eddy Limit switch for rolling door
ITTV20050024U1 (it) 2005-05-06 2006-11-07 Nice Spa Dispositivo di fine-corsa per azionamenti di avvolgibili o protezioni solari.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131316A1 (de) * 1981-08-07 1983-02-24 Paul Spahr GmbH & Co, 7024 Filderstadt Vorrichtung zum abschalten eines elektromotorischen antriebs von rolladen, markisen o.dgl.
IT1179289B (it) * 1984-03-13 1987-09-16 Farne B & C Asa Motoriduttori Dispositivo atto ad avvolgere persiane o tendoni avvolgibili
FR2588308B1 (fr) * 1985-10-09 1987-12-24 Simu Soc Ind Metal Usine Dispositif de fins de course pour la commande automatique des stores, volets roulants ou autres appareils de levage a tambour tournant
FR2599524B1 (fr) * 1986-05-28 1988-09-09 Somfy Dispositif d'arret automatique d'enroulement et de deroulement d'un element enroulable

Also Published As

Publication number Publication date
EP0371170A1 (fr) 1990-06-06
DE3880491D1 (de) 1993-05-27

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