EP0997606B1 - Cord drive or similar for a roller shutter - Google Patents
Cord drive or similar for a roller shutter Download PDFInfo
- Publication number
- EP0997606B1 EP0997606B1 EP19990440282 EP99440282A EP0997606B1 EP 0997606 B1 EP0997606 B1 EP 0997606B1 EP 19990440282 EP19990440282 EP 19990440282 EP 99440282 A EP99440282 A EP 99440282A EP 0997606 B1 EP0997606 B1 EP 0997606B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulley
- driving means
- hub
- drive
- star wheel
- 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
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
Definitions
- the invention relates to a cord or analog for rolling shutter, according to the preamble of claim 1.
- the present invention will find its application in the field manually operated shutters.
- such a compensating device is usually has the form of a helical spring arranged inside the winding shaft which comes out is gradually put under stress during the deployment of the apron so as to allow it to restore its energy to time to open the roller shutter again.
- this pulley rotatably mounted on a shaft drive, this pulley being chamfered at the periphery and on each of its sides so as to define, on its periphery, inclined walls generating friction zones and slip for a crown.
- This is defined by two annular flanges made integral with a friction ring cooperating with the inclined walls of the pulley. More particularly, this friction ring is defined by elastic washers secured to the annular flanges and bearing, by means of skids, on said overhanging walls. The assembly is pre-stressed so that said elastic washers exert, by through their skate one component force at a time radial and axial on the pulley.
- the drive pulley comprises, at level of its periphery, a succession of semicircular reservations for receiving the spherical elements of a Ball drive chain.
- Said pulley is rotatably mounted on the shaft training, the latter being carried out at across a plate with elastic blades.
- this plate is rotatably mounted on said shaft drive and has, radially, four blades elastic whose ends come to cooperate with reservations, provided for this purpose, on one side of the pulley.
- the subject of the present invention is able to meet requirements from the point of view of the very design of a manual drive device disengageable for rolling shutter. More specifically, the device is simple in construction while being reliable, that is to say capable of providing training with a couple determined and constant over time.
- the additional drive means are defined by a star wheel associated with the intermediate hub and having teeth with which the blade cooperates elastic of said drive means.
- Figure 1 is a schematic representation, in elevation and in section along I-I of Figure 2 of the drive device according to the invention
- Figure 2 is a schematic representation in section along II-II of Figure 1.
- the present invention relates to the field of roller shutters and to relates, in particular, to a drive device 1 to cord 2 or the like.
- This drive device 1 comprises a pulley 3 around which is wound at least partially, the said cord 2, this pulley 3 being mounted integral in rotation on a drive shaft 4 engaged with the winding shaft 5 of the apron of said rolling shutter.
- this pulley 3 it is very common for this pulley 3 to be in taken with the winding shaft 5 via a reduction mechanism 6 which has been shown so shown diagrammatically in FIG. 1, taking into account, in fact, that this reducing mechanism 6 can adopt different forms of production.
- This drive device 1 also includes a mechanism drive torque limiter 7 provided capable of ensuring the disengagement of the drive by the pulley 3 beyond a torque determined resistance produced by the winding shaft 5, the case if necessary through the reduction mechanism 6.
- this torque limiting mechanism 7 consists in an intermediate hub 8 which is integral in rotation with the drive shaft 4.
- this hub 8 is also rotatably mounted pulley 3, which is provided with drive means 9 engaged with means additional drive 10 associated with said hub 8, these drive means 9 and / or drive means complementary 10 being provided of an elastic nature so able to bend under the effect of resistance to training determined, to allow the free rotation of said pulley 3 relative to the intermediate hub 8.
- the pulley 3 is in the form of a crown in the internal bore 12 in which the intermediate hub 8 is housed.
- Quant the drive means 9 associated with the pulley 3, they are defined by at least one elastic blade 13 extending at through this bore 12 so as to cooperate with the toothing 14 of a star wheel 15 defined in the center of a groove peripheral 16 of said intermediate hub 8 and corresponding additional training means 10.
- two 14A, 14B teeth of the teeth 14 corresponding to this star wheel 15 are defined suitable for take support on this elastic blade 13 so as to allow the drive of this intermediate hub 8 by through the pulley 3.
- said drive means 9 may consist of two elastic blades 13, 13A arranged symmetrically with respect to a diametrical plane 17 of the pulley 3, each of these elastic blades 13, 13A engaging diametrically opposite with the teeth 14 of the wheel star 15, this for a better distribution of forces.
- the present invention makes it possible to remedy, advantageously, to the aforementioned problem in the sense that through of the torque limiting mechanism 7 it is impossible, at a user, to communicate to the winding shaft 5, if applicable if necessary through a reduction mechanism 6, a couple greater than a given value which would result in damage the roller shutter.
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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)
- Blinds (AREA)
Description
L'invention concerne un dispositif d'entraínement à cordon ou analogue pour volet roulant, selon le préambule de la revendication 1.The invention relates to a cord or analog for rolling shutter, according to the preamble of claim 1.
La présente invention trouvera son application dans le domaine des volets roulants à commande manuelle.The present invention will find its application in the field manually operated shutters.
L'on connaít d'ores et déjà, un certain nombre de mécanismes d'entraínement manuels de volets roulants dont certains font appel à un treuil actionné par l'intermédiaire d'une manivelle. D'autres se présentent sous forme d'une poulie en prise avec l'arbre d'enroulement du tablier du volet roulant, autour de cette poulie venant s'enrouler, au moins partiellement, un cordon ou une courroie quelconque décrivant une boucle et venant retomber, librement, en dehors du caisson abritant, généralement, l'ensemble du mécanisme de ce volet roulant. Ainsi, en. intervenant sur l'un des brins de ce cordon l'usager vient à commander le déploiement ou l'enroulement du tablier. We already know a number of mechanisms manual roller shutter drive some of which are call to a winch operated by a crank. Others are in the form of a pulley engaged with the winding shaft of the roller shutter deck, around this pulley coming to wind, at least partially, a any cord or strap describing a loop and coming freely fall out of the housing, generally, the entire mechanism of this roller shutter. So in. intervening on one of the strands of this cord the user comes to control the deployment or winding of the deck.
Dans la mesure où l'usager exercera son action directement sur le mécanisme d'entraínement du volet roulant, rien ne limite le couple susceptible d'être imprimé à ce mécanisme si ce n'est la force dont dispose l'usager lui-même. Aussi, il se peut qu'en actionnant quelque peu brutalement le volet roulant, celui-ci peut être endommagé.Insofar as the user will act directly on the drive mechanism of the roller shutter, nothing limits the torque likely to be printed at this mechanism if not the force available to the user himself. Also, it may be that actuating the roller shutter somewhat brutally, it may be damaged.
En fait, si ce problème ne se rencontre que très rarement lorsque la poulie est en prise directe avec l'arbre d'enroulement de ce volet roulant, dans la mesure où l'usager dispose, alors, d'une idée précise de l'effort auquel il soumet ce dernier, ceci n'est pas le cas lorsque le mouvement de la poulie est répercuté sur cet arbre d'enroulement par l'intermédiaire d'un mécanisme réducteur indispensable pour l'entraínement de volets roulants de grande taille ou encore dépourvus d'un quelconque dispositif compensateur du poids du tablier. In fact, if this problem is encountered only very rarely when the pulley is in direct contact with the shaft of rolling up this roller shutter, insofar as the user has, then, a precise idea of the effort to which it subjects the latter, this is not the case when the movement of the pulley is reflected on this winding shaft by through an essential reduction mechanism for driving large roller shutters or without any device to compensate for the weight of the apron.
A noter, à ce propos, qu'un tel dispositif compensateur se présente, usuellement, sous forme d'un ressort hélicoïdal disposé à l'intérieur de l'arbre d'enroulement lequel ressort est progressivement mis sous contrainte lors du déploiement du tablier de manière à lui permettre de restituer son énergie au moment d'ouvrir, à nouveau, le volet roulant.Note, in this regard, that such a compensating device is usually has the form of a helical spring arranged inside the winding shaft which comes out is gradually put under stress during the deployment of the apron so as to allow it to restore its energy to time to open the roller shutter again.
On comprend bien qu'au travers d'un tel mécanisme réducteur, il en résulte, au niveau de l'arbre d'enroulement, une démultiplication du couple que vient imprimer l'usager sur la poulie par l'intermédiaire du cordon d'entraínement. Aussi, les efforts susceptibles d'être transmis à cet arbre d'enroulement et, par voie de conséquence, au tablier relié à ce dernier, peuvent être considérables sans que l'usager en soit réellement conscient au travers de l'action qu'il vient exercer sur ledit cordon et il n'est pas rare que des détériorations de volets roulants soient enregistrées simplement pour cette raison.It is understandable that through such a reducing mechanism, it As a result, at the winding shaft, a reduction of the torque that the user prints on the pulley via the drive cord. Also, the forces likely to be transmitted to this winding shaft and, consequently, to the deck connected to the latter, can be considerable without the user really being conscious through the action it exerts on said cord and it is not uncommon for damage to shutters are recorded simply for this reason.
A ce propos, l'on connaít au travers du document EP-A-0.692.605, un treuil débrayable à cordon.In this regard, we know through document EP-A-0.692.605, a detachable cord winch.
On dispose, ici, d'une poulie montée en rotation sur un arbre d'entraínement, cette poulie étant chanfreinée en périphérie et sur chacun de ses côtés de manière à définir, sur son pourtour, des parois inclinées venant générer des zones de frottement et de glissement pour une couronne. Celle-ci est définie par deux flasques annulaires rendus solidaires d'une bague de frottement coopérant avec les parois en dévers de la poulie. Plus particulièrement, cette bague de frottement est définie par des rondelles élastiques solidaires des flasques annulaires et prenant appui, par l'intermédiaire de patins, sur lesdites parois en dévers. L'ensemble est monté de manière précontrainte de sorte que lesdites rondelles élastiques exercent, par l'intermédiaire de leur patin une force de composante à la fois radiale et axiale sur la poulie.Here we have a pulley rotatably mounted on a shaft drive, this pulley being chamfered at the periphery and on each of its sides so as to define, on its periphery, inclined walls generating friction zones and slip for a crown. This is defined by two annular flanges made integral with a friction ring cooperating with the inclined walls of the pulley. More particularly, this friction ring is defined by elastic washers secured to the annular flanges and bearing, by means of skids, on said overhanging walls. The assembly is pre-stressed so that said elastic washers exert, by through their skate one component force at a time radial and axial on the pulley.
Ainsi, le couple susceptible d'être transmis au travers du cordon d'entraínement sur l'arbre sur lequel est montée la poulie dépend du coefficient d'adhérence donc, de frottement, existant entre cette poulie et la couronne. Il est, par conséquent, très difficile de prédéfinir précisément le couple susceptible d'être transmis à l'arbre d'entraínement du volet roulant. De plus, il est susceptible de varier dans le temps, en fonction du taux d'usure de la bague de frottement. On remarquera encore que ce coefficient de frottement dépend plus particulièrement des forces axiales exercées par les patins des rondelles élastiques. Or, ces forces axiales sont, elles aussi, amenées à se modifier au cours du temps.Thus, the torque likely to be transmitted through the training cord on the shaft on which the pulley depends on the coefficient of adhesion therefore, of friction, existing between this pulley and the crown. It is, by therefore, very difficult to precisely predefine the torque likely to be transmitted to the shutter drive tree rolling. In addition, it is likely to vary over time, depending on the wear rate of the friction ring. We will also notice that this coefficient of friction depends more particularly the axial forces exerted by the pads of the elastic washers. These axial forces are also caused to change over time.
Il est encore connu par le document EP-A-0.211.660 un dispositif d'entraínement manuel pour volets roulants consistant en une poulie d'entraínement montée sur un arbre de transmission qui, à son tour, attaque, au travers d'une vis sans fin, une roue dentée qui, elle, est montée solidaire en rotation sur l'arbre d'enroulement du tablier.It is also known from document EP-A-0.211.660 a manual drive device for roller shutters consisting of a drive pulley mounted on a shaft transmission which, in turn, attacks, through a screw endless, a cogwheel which is mounted integral in rotation on the winding shaft of the deck.
Plus particulièrement, la poulie d'entraínement comporte, au niveau de sa périphérie, une succession de réservations semi-circulaires pour la réception des éléments sphériques d'une chaíne d'entraínement à boules.More particularly, the drive pulley comprises, at level of its periphery, a succession of semicircular reservations for receiving the spherical elements of a Ball drive chain.
Ladite poulie est montée en rotation sur l'arbre d'entraínement, l'entraínement de ce dernier s'effectuant au travers d'un plateau à lames élastiques. Plus précisément, ce plateau est monté solidaire en rotation sur ledit arbre d'entraínement et comporte, radialement, quatre lames élastiques dont les extrémités viennent coopérer avec des réservations, prévues à cet effet, sur l'une des faces de la poulie.Said pulley is rotatably mounted on the shaft training, the latter being carried out at across a plate with elastic blades. Specifically, this plate is rotatably mounted on said shaft drive and has, radially, four blades elastic whose ends come to cooperate with reservations, provided for this purpose, on one side of the pulley.
Ainsi, au cas où le couple exercé sur cette poulie, par l'intermédiaire des moyens d'entraínement manuel, venait à excéder une valeur prédéterminée, les lames élastiques, au travers de leur configuration, s'échappent de leurs réservations respectives permettant la rotation en roue libre d'au moins un quart de tour de ladite poulie. En fait, lesdites lames élastiques s'engagent, à nouveau, élastiquement, dans les encoches suivantes de la poulie permettant à celle-ci d'entraíner l'arbre d'entraínement à condition, bien sûr, qu'entre temps, le couple résistant, par rapport au sens de rotation de la commande, ait diminué.Thus, if the torque exerted on this pulley, by through manual training means, came to exceed a predetermined value, the elastic blades, at through their configuration, escape their reservations respective allowing freewheeling rotation of at least one quarter turn of said pulley. In fact, said blades elastic again engage elastically in the following notches of the pulley allowing it to train the training tree provided, of course, that meanwhile, the resisting torque, with respect to the sense of control rotation has decreased.
Par rapport à cet état de la technique l'objet de la présente invention se veut à même de répondre à des exigences du point de vue de la conception même d'un dispositif d'entraínement manuel débrayable pour volet roulant. Plus particulièrement, le dispositif se veut de construction simple tout en étant fiable, c'est-à-dire capable d'assurer un entraínement avec un couple déterminé et constant dans le temps.In relation to this state of the art, the subject of the present invention is able to meet requirements from the point of view of the very design of a manual drive device disengageable for rolling shutter. More specifically, the device is simple in construction while being reliable, that is to say capable of providing training with a couple determined and constant over time.
L'invention telle qu'elle est définie dans les revendications, répond à ces critères et consiste en un dispositif d'entraínement à cordon ou analogue pour volet roulant, avec les caractéristiques énoncées dans la revendication 1.The invention as defined in the claims, meets these criteria and consists of a device cord or similar drive for roller shutters, with the features set out in claim 1.
Avantageusement, les moyens d'entraínement complémentaires sont définis par une roue étoilée associée au moyeu intermédiaire et comportant une denture avec laquelle vient coopérer la lame élastique desdits moyens d'entraínement.Advantageously, the additional drive means are defined by a star wheel associated with the intermediate hub and having teeth with which the blade cooperates elastic of said drive means.
L'invention sera mieux comprise à la lecture de la description qui va suivre se rapportant à un exemple de réalisation et le dessin en annexe.The invention will be better understood on reading the description which will follow relating to an exemplary embodiment and the drawing attached.
La figure 1 est une représentation schématisée, en élévation et en coupe selon I-I de la figure 2 du dispositif d'entraínement conforme à l'invention ;Figure 1 is a schematic representation, in elevation and in section along I-I of Figure 2 of the drive device according to the invention;
La figure 2 est une représentation schématisée et en coupe selon II-II de la figure 1.Figure 2 is a schematic representation in section along II-II of Figure 1.
Tel que représenté dans les figures du dessin ci-joint, la
présente invention concerne le domaine des volets roulants et a
trait, tout particulièrement, à un dispositif d'entraínement 1 à
cordon 2 ou analogue.As shown in the figures in the attached drawing, the
the present invention relates to the field of roller shutters and to
relates, in particular, to a drive device 1 to
Ce dispositif d'entraínement 1 comporte une poulie 3 autour de
laquelle vient s'enrouler au moins partiellement, le dit cordon
2, cette poulie 3 étant montée solidaire en rotation sur un
arbre d'entraínement 4 en prise avec l'arbre d'enroulement 5 du
tablier dudit volet roulant.This drive device 1 comprises a
A ce propos, il est très fréquent que cette poulie 3 soit en
prise avec l'arbre d'enroulement 5 par l'intermédiaire d'un
mécanisme réducteur 6 qui a été représenté de manière
schématisée sur la figure 1, tenant compte, effectivement, que
ce mécanisme réducteur 6 peut adopter différentes formes de
réalisation.In this regard, it is very common for this
Ce dispositif d'entraínement 1 comporte encore un mécanisme
limiteur de couple d'entraínement 7 prévu apte à assurer le
débrayage de l'entraínement par la poulie 3 au-delà d'un couple
résistant déterminé produit par l'arbre d'enroulement 5, le cas
échéant au travers du mécanisme réducteur 6.This drive device 1 also includes a mechanism
En somme, en cas de blocage en rotation de l'arbre
d'enroulement 5, que ce soit en fin de course de déploiement ou
de repliement du tablier de volet roulant ou encore parce que
celui-ci rencontre un obstacle quelconque, et à supposer que,
dans ces conditions, l'usager maintient son action sur le
cordon 2, le mécanisme limiteur de couple 7 a pour conséquence
le débrayage de la poulie 3 et, finalement, sa « libre
rotation » par rapport à l'arbre d'enroulement 5.In short, in the event of the shaft blocking in rotation
winding 5, either at the end of the deployment stroke or
folding shutter curtain or because
this one encounters some obstacle, and supposing that,
under these conditions, the user maintains his action on the
Selon l'invention, ce mécanisme limiteur de couple 7 consiste
en un moyeu intermédiaire 8 qui est solidaire en rotation de
l'arbre d'entraínement 4. Sur ce moyeu 8 est par ailleurs
montée, de manière tournoyante, la poulie 3, laquelle est
pourvue de moyens d'entraínement 9 en prise avec des moyens
d'entraínement complémentaires 10 associés audit moyeu 8, ces
moyens d'entraínement 9 et/ou les moyens d'entraínement
complémentaires 10 étant prévus de nature élastique de manière
apte à se plier sous l'effet d'une résistance à l'entraínement
déterminée, pour autoriser la libre rotation de ladite poulie 3
par rapport au moyeu intermédiaire 8.According to the invention, this
Substantiellement et tel que visible dans les figures 1 et 2,
la poulie 3 est en forme d'une couronne dans l'alésage interne
12 dans laquelle vient se loger le moyeu intermédiaire 8. Quant
aux moyens d'entraínement 9 associés à la poulie 3, ils sont
définis par au moins une lame élastique 13 s'étendant au
travers de cet alésage 12 de manière apte à coopérer avec la
denture 14 d'une roue étoilée 15 définie au centre d'une gorge
périphérique 16 dudit moyeu intermédiaire 8 et correspondant
aux moyens d'entraínement complémentaires 10.Substantially and as visible in Figures 1 and 2,
the
En fin de compte, deux 14A, 14B des dents de la denture 14
correspondant à cette roue étoilée 15 sont définies aptes à
prendre appui sur cette lame élastique 13 de manière à
permettre l'entraínement de ce moyeu intermédiaire 8 par
l'intermédiaire de la poulie 3.Ultimately, two 14A, 14B teeth of the
A supposer que ledit moyeu intermédiaire 8 soit bloqué en
rotation pour une raison quelconque, le fait d'appliquer sur la
poulie 3, dans ces conditions, un couple supérieur à une valeur
seuil déterminée, dépendant de la raideur de la lame élastique
13, produit l'effacement de cette dernière au-devant de la
denture 14 de la roue étoilée 15. Celle-ci n'étant plus
entraínée, la poulie 3 vient à tournoyer librement autour dudit
moyeu intermédiaire 8. En fait, il est ressenti par l'usager au
niveau du cordon 2 une avance par saccades correspondant au
saut successif des dents 14A, 14B au devant de la lame
élastique 13.Assuming that said intermediate hub 8 is locked in
rotation for whatever reason, applying on the
Comme visible dans la figure 2, lesdits moyens d'entraínement 9
peuvent consister en deux lames élastiques 13, 13A disposées
symétriquement par rapport à un plan diamétral 17 de la poulie
3, chacune de ces lames élastiques 13, 13A venant en prise de
manière diamétralement opposée avec la denture 14 de la roue
étoilée 15, ceci pour une meilleure répartition des efforts.As shown in Figure 2, said drive means 9
may consist of two
Finalement, la présente invention permet de remédier,
avantageusement, au problème précité en ce sens qu'au travers
du mécanisme limiteur de couple 7 il est impossible, à un
usager, de communiquer à l'arbre d'enroulement 5, le cas
échéant au travers d'un mécanisme réducteur 6, un couple
supérieur à une valeur donnée qui aurait pour conséquence de
détériorer le volet roulant.Finally, the present invention makes it possible to remedy,
advantageously, to the aforementioned problem in the sense that through
of the
De plus, comme cela ressort de la description ci-dessus, un tel
mécanisme limiteur de couple 7 peut adopter une forme de
réalisation très simple et donc peu onéreuse.In addition, as is apparent from the above description, such a
Claims (5)
- Cord drive or similar for a roller shutter, including a pulley (3) about which said cord (2) can wind up, at least partially, and a torque-limiting mechanism, said pulley (3), in the form of a crown, having an inner bore (12) in which is accommodated an intermediate hub (8) corresponding to the torque-limiting mechanism (7) and mounted integral in rotation on a driving shaft (4) that can be connected in engagement with the winding-up shaft (5) of the apron of the roller shutter, namely through a reducing mechanism (6), on this hub being rotationally mounted the pulley (3), which is provided with driving means (9) defined so as to be capable of co-operating with complementary driving means (10) associated with said hub (8), characterised in that these driving means (9) are designed of an elastic nature, so as to be capable of folding under the action of a resistance to being driven determined so as to authorise the free rotation of the pulley (3) with respect to the intermediate hub (8), said driving means (9) being defined by at least one springy blade (13) extending through the bore (12) so as to be capable of co-operating with said complementary driving means (10) of the hub (8).
- Drive according to claim 1, characterised in that the complementary driving means (10) are defined by a star wheel (15) associated with the intermediate hub (8) and including a toothing (14), which the springy blade (13) co-operates with.
- Drive according to claim 2, characterised in that two (14A, 14B) of the teeth of the toothing (14) corresponding to the star wheel (15) are designed capable of resting on the springy blade (13), so as to allow driving the intermediate hub (8) through the pulley (3).
- Drive according to claim 2 or 3, characterised in that the star wheel (15) is defined in the centre of a peripheral groove (16) of the intermediate hub (8).
- Drive according to any of claims 2 to 4, characterised in that the driving means (9) are in the form of two springy blades (13, 13A) arranged symmetrically with respect to a diametrical plane (17) of the pulley (3), each of these springy blades (13, 13A) engaging in a diametrically opposite way with the toothing (14) of the star wheel (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9813474 | 1998-10-26 | ||
| FR9813474A FR2785015B1 (en) | 1998-10-26 | 1998-10-26 | CORD OR THE LIKE DRIVE DEVICE FOR ROLLER SHUTTER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0997606A1 EP0997606A1 (en) | 2000-05-03 |
| EP0997606B1 true EP0997606B1 (en) | 2003-05-21 |
Family
ID=9532058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19990440282 Expired - Lifetime EP0997606B1 (en) | 1998-10-26 | 1999-10-22 | Cord drive or similar for a roller shutter |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0997606B1 (en) |
| DE (1) | DE69908064T2 (en) |
| ES (1) | ES2195531T3 (en) |
| FR (1) | FR2785015B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2811013B1 (en) * | 2000-07-03 | 2003-05-16 | Bubendorff Volet Roulant | MANUAL TYPE DRIVE DEVICE FOR ROLLING SHUTTER |
| DE202015001685U1 (en) | 2015-03-05 | 2015-03-23 | Mittelmann Sicherheitstechnik Gmbh & Co. Kg | descender |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5117893A (en) * | 1985-08-07 | 1992-06-02 | Excel Shutter Systems, Inc. | Rolling shutter system |
| FR2722183B1 (en) * | 1994-07-11 | 1996-09-13 | Zurfluh Feller Sa | RELEASABLE CORD WINCH |
| FR2729771B1 (en) * | 1995-01-24 | 2002-06-07 | Zurfluh Feller Sa | IMPROVEMENT FOR A TORQUE LIMITER |
-
1998
- 1998-10-26 FR FR9813474A patent/FR2785015B1/en not_active Expired - Fee Related
-
1999
- 1999-10-22 DE DE69908064T patent/DE69908064T2/en not_active Expired - Fee Related
- 1999-10-22 ES ES99440282T patent/ES2195531T3/en not_active Expired - Lifetime
- 1999-10-22 EP EP19990440282 patent/EP0997606B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69908064D1 (en) | 2003-06-26 |
| ES2195531T3 (en) | 2003-12-01 |
| FR2785015B1 (en) | 2001-02-16 |
| FR2785015A1 (en) | 2000-04-28 |
| EP0997606A1 (en) | 2000-05-03 |
| DE69908064T2 (en) | 2004-04-01 |
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