EP1270866B1 - Fall arrest device for rollable closure - Google Patents
Fall arrest device for rollable closure Download PDFInfo
- Publication number
- EP1270866B1 EP1270866B1 EP02291394A EP02291394A EP1270866B1 EP 1270866 B1 EP1270866 B1 EP 1270866B1 EP 02291394 A EP02291394 A EP 02291394A EP 02291394 A EP02291394 A EP 02291394A EP 1270866 B1 EP1270866 B1 EP 1270866B1
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- EP
- European Patent Office
- Prior art keywords
- spring
- finger
- reel
- cheeks
- shaft
- 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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- 230000003068 static effect Effects 0.000 claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000003100 immobilizing effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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- 210000002816 gill Anatomy 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Images
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
- E06B9/80—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
- E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
-
- 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
- E06B9/60—Spring drums operated only by closure members
Definitions
- the present invention relates to an anti-fall device of a flexible structure closing apron capable of being wound around a substantially cylindrical support system and mounted to rotate around a fixed shaft, generally above an opening to condemn.
- the invention finds a particularly advantageous, but not exclusive, application in the field of vertical erasure closures equipping the accesses of industrial and commercial buildings.
- curtains or apron more generally designate any means capable of closing an opening, that is to say a plate, a blade assembly, a grid etc ...
- the structural flexibility necessary for the winding of this organ can come directly from the intrinsic nature of the material constituting it and / or joints linking the different parts of the component.
- the winding of the deck is traditionally performed around at least one spool mounted to rotate on said fixed shaft.
- Each coil is also connected to the fixed shaft by means of a spiral-type compensation spring, wound inside said coil itself.
- This elastic return means is responsible for counterbalancing at least partially the weight of the apron by restoring during the opening phase, the stored energy in the form of torque during the closing phase.
- roller curtains around a fixed shaft are subject to a number of regulatory and prescriptive requirements.
- the French standard NF P 25-362 replaced by the European standard EN 12604: 2000, having the status of a French standard, taking effect on January 20, 2001, concerns the safety of users in case of failure of the closing.
- an apron has a relatively large weight, generally ranging from several tens to several hundred kilograms. Combined with a high fall speed, this mass is a real danger for users.
- each compensation spring is integral with a locking element mounted to move on the corresponding coil, the locking element being able to move in the direction of a static member integral with the shaft fixed to cooperate by locking with a stop portion of said static member, said locking member being kept away from the static member by the restoring force exerted by the compensation spring.
- This device thus described has the advantage of being of extremely simple design since this security system requires the cooperation of only two parts, namely, a movable locking member and a static member. Therefore, and contrary to the antecedents of the prior art previously mentioned, the adaptation of such a retaining device requires only minor changes in the intrinsic structure of the winding closure. In Indeed, these transformations are essentially limited to simply secure the outer end of the compensating spiral spring to a locking member mounted movably in displacement on the corresponding coil. This does not call into question the classic mechanism of closure, whether from a structural and / or functional point of view. For all these reasons, the described retaining device has increased reliability as well as a particularly low cost compared to equivalent systems already known.
- the compensation spring is indeed the only part controlling the immobilization or displacement of the locking element with respect to the coil. In other words, it alone ensures the immobilization of the blocking element in the passive position, it also controls only the movement towards the static member, and finally it guarantees only the maintenance in the active position; the passive and active positions being those in which said blocking element and said static body are respectively at a distance and in contact with each other.
- the position of the locking element with respect to the static member therefore depends solely and especially directly on the state of the compensation spring.
- the compensation spring Under normal conditions of use, the compensation spring is constantly stretched due to excessive winding of the coil constituting it, and this regardless of the position of the deck. As also its internal end is fixed, the restoring force is only felt at its outer end. It is indeed the only one likely to move, for the double reason that it is secured to the locking element mounted movably moving on the coil on the one hand, and that said coil is itself mounted mobile in rotation around the fixed shaft on the other hand.
- the only restoring force thus makes it possible to advantageously maintain the blocking element in the passive position, that is to say at a distance from the static body. This balance remains perfectly stable as long as the compensation spring retains its original mechanical properties.
- the compensation spring When a failure occurs at the compensation spring, the break occurs systematically at the point where the stresses are maximum, that is to say where the curvature is the strongest.
- the part concerned corresponds, of course, to the internal end of the compensation spring, and more generally to the entire zone located near the attachment point on the fixed shaft. The compensation spring is thus released from the inside, from any mechanical stress so that the restoring force disappears.
- the compensation spring Since the compensation spring is wound on itself when the closure functions normally, the volume it occupies inside the coil is very much lower than that which it has at rest, that is to say when not subject to any winding stress. Also, after rupture, it will tend to resume naturally its original form. In the event of a failure, there is therefore a substantially radial expansion of the compensation spring which tends to deviate at most from the axis around which it was wound. This movement continues until the deployment of the spring is stopped, due to the limited space inside the coil.
- the locking element When no longer subjected to the restoring force exerted by the compensation spring, the locking element is therefore free to leave its passive position and move relative to the coil on which it is mounted, in the direction of the static organ. This obviously implies that it can be driven on the move through a moving body. This is precisely what happens when the compensation spring breaks then animates the double movement of radial extension and rotation previously described. The locking element, secured to the outer end of the compensation spring, is then moved to the active position in which it cooperates by locking with the static member.
- the blocking element is held in contact with the static member by virtue of the fact that the radial expansion of the compensation spring is limited by the small volume available inside the coil, and that thus said spring comes very quickly to lock against the apron portion surrounding said coil, thereby immobilizing said locking member.
- the retaining device comprises guide means adapted to direct the movement of the locking element towards the static member, in case of rupture of the compensation spring; the envisaged displacement occurring between the passive position in which the blocking element is at a distance from the static body and the active position in which the said blocking element is in contact with the said static body.
- the compensation spring is driven by a complex movement resulting substantially from the combination of radial expansion and rotation in the winding direction of the turn. Also, it is particularly advantageous to control the movement of its outer end so that the movable locking element is safely and effectively directed towards the static member.
- the purpose here is above all to avoid the risk of attachment of the compensation spring and / or the locking element with any element, present inside the coil, other than the body static.
- Advantageously arranged guiding means advantageously make it possible to achieve this objective.
- the object of the invention is to propose an alternative embodiment as well as a certain number of improvements made to the entire device.
- the invention relates to an anti-fall device of a closing apron intended to be wound around at least one spool mounted to rotate on a fixed shaft and connected thereto via a compensation spring wound on itself between two blanks of the coil and whose inner end is integral with the shaft, while its outer end cooperates with a locking element mounted to move on said coil, so as to in case of failure of the compensation spring, said element comes to cooperate by locking with a stop portion of a static member integral with the fixed shaft and therefore of the apron, characterized in that the locking element cooperating with the outer end of the compensation spring is constituted by a finger interposed between the two blanks, generally parallel, delimiting the coil, an outer portion of which cooperates with an elastic thrust member and an inner portion of which cooperates with the end of the compensation spring, which finger is able to move axially along an axis parallel to that of the shaft, between two positions, one of which unlocking in which it is kept at a distance from the abutment portion of the static member, by putting
- the present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
- the device 1 generally designated in the figures makes it possible to prevent the fall of a closing apron (not shown).
- the locking element 7 cooperating with the external end 4b of the compensation spring 4 is constituted by a finger interposed between the two blanks 5, 6, generally parallel, delimiting the coil 2, an outer portion 7a of which is connected with an elastic thrust member 10 and whose inner portion 7b cooperates with the end 4b of the compensation spring 4.
- the finger 7 is capable of moving axially along an axis parallel X, X 'to that Y, Y' of the shaft 3, between two positions A, B, the so-called unlocking one in which it is kept at a distance the abutment portion 8 of the static member 9, by putting the axial thrust member 10 under stress, by the single restoring force of the spring 4 at its outer end 4b.
- the finger 7 is cylindrical and staggered in two different diameters D1, D2 delimiting a shoulder E between them.
- the zone of smaller diameter D1 constitutes its inner part and that of the largest diameter D2 its external part.
- the retention in the locking position A, by the single restoring force of the spring 4 at its end 4b, is effected by means of the shoulder E which constitutes a stop coming against the field of said end 4b of the spring 4, when it is stretched so operational.
- Unlocking according to the position B of the finger 7 is effected by releasing its shoulder E, during an expansion of the winding force of the spring 4, in particular by breaking thereof, causing a development of its diameter.
- the zone of larger diameter D2 of the finger 7 constituting its outer portion 7a is in connection with the elastic thrust member 10 which is constituted by a spiral spring mounted in extension between the outer end of the finger 7 and a fixed part of one of the blanks 5 constituting the coil 2 opposite that 6 facing the static member 8.
- the inner face of the blank 6 opposite the static member 8 comprises a peripheral puncture 11 surrounding a passage hole 11A of the finger 7 in said blank 6 directed towards the abutment portion 8 of the static member 9, so as to constitute both a bearing to said finger 7 and an abutment to the compensation spring 4, avoiding any lateral displacement thereof on the rim of the blank 6, likely to cause the wedging of the spring 4 and adversely affect the operation of the device.
- the inner face of the blank 5 opposite that 6 opposite the static member 9 comprises a peripheral puncture 12 surrounding the corresponding through hole 13 of the finger 7 directed towards the elastic thrust member 10 thereof, to constitute a landing.
- the slats 11 and 12 effectively contribute to stiffen the blanks 6 and 5 and consequently strengthen the holding of the finger 7, in the unlocked position. Indeed, in this case, its role is to maintain the end of the spring 4 which is stretched.
- external attachment means 14, 15 of one end of the extension spring 10, constituting the elastic thrust member are constituted by hooks 14, 15 obtained by deformation of material of the 5, around the passage hole 13 of the finger 7. This improvement is particularly clearly visible on the figure 10 constituting a section along line VIIIb, VIIIb of the figure 8 .
- each of the blanks 5, 6 integrate, for one 5 the attachment means 14, 15 of the spring 10 and one of the bearings 12 of the finger 7, and for the other 6 the other bearing 10 of the finger 7 and a stop of the compensation spring 4 are constituted by a single piece obtained by stamping from a flat steel sheet in a single operation.
- the blanks 5 and 6 are assembled together by means of connecting bars 22 arranged between said blanks, then stapled by a deformation 23 of the end of said strips, after having passed through corresponding holes 24 of the blanks.
- These bars 22 are stiffened by a hollow stamping operation whose bulge 22a is turned outwardly and they contribute to the realization of the coil 2 by reinforcing it.
- one 22A of these bars disposed near the punctures 11, 12 of the flanks 6, 5, supporting the gripping finger 7, of the spring 4, although identical to the other bars 22, has the particularity of to be turned so that its domed portion is turned inward and thus its recessed portion 22Aa to the outside.
- said bar 22A is offset peripherally inwardly relative to the others to allow the spring 4, near its end 4b, to pass over the bar 22A covering its recessed portion 22Aa turned outward, so to the spring covering it. This is intended to limit and control expansion and friction during spring breakage.
- the static member 9 comprises abutment portions 8 constituted by peripheral openings open at one of their ends and closed at the other end, in the sense of the blocking to be obtained in the event of unlocking of the finger 7 which has become lodged in the 8, the pitch between two gills, corresponding to an apron drop of less than thirty centimeters.
- the static member 9 is obtained by stamping from a flat steel sheet in a single operation.
- the static member 9 is secured to the shaft 3 by means of the tabs 16 extending axially from the body of the static member 9 and which are pierced with holes 17 fixing to the tree.
- the coil is held in place on the shaft 3 not only by the static member 9 fixed on the shaft but also, on the opposite, by a fastener 18 which is also derived from the legs 19 in which are practiced holes 20 for fixing on the same shaft 3, thus trapping the coil and the fall prevention device according to the invention.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Earth Drilling (AREA)
- Ladders (AREA)
- Discharge Heating (AREA)
- Replacement Of Web Rolls (AREA)
- Warping, Beaming, Or Leasing (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Details Of Aerials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Springs (AREA)
Abstract
Description
La présente invention concerne un dispositif anti-chute d'un tablier de fermeture de structure souple apte à être enroulée autour d'un système support sensiblement cylindrique et monté mobile en rotation autour d'un arbre fixe, généralement au-dessus d'une ouverture à condamner.The present invention relates to an anti-fall device of a flexible structure closing apron capable of being wound around a substantially cylindrical support system and mounted to rotate around a fixed shaft, generally above an opening to condemn.
L'invention trouve une application particulièrement avantageuse, mais non exclusive, dans le domaine des fermetures à effacement vertical équipant les accès des bâtiments industriels et commerciaux.The invention finds a particularly advantageous, but not exclusive, application in the field of vertical erasure closures equipping the accesses of industrial and commercial buildings.
Il s'agit par exemple de rideaux métalliques de garage ou de grilles de devanture de magasin.This is for example metal garage curtains or storefront grilles.
Il est à noter que dans l'ensemble de ce texte, les termes rideaux ou tablier désignent plus généralement tout moyen apte à fermer une ouverture, c'est à dire une plaque, un assemblage de lames, une grille etc...It should be noted that throughout this text, the terms curtains or apron more generally designate any means capable of closing an opening, that is to say a plate, a blade assembly, a grid etc ...
La souplesse structurelle nécessaire à l'enroulement de cet organe peut provenir directement de la nature intrinsèque du matériau le constituant et/ou des articulations liant les différentes parties le composant.The structural flexibility necessary for the winding of this organ can come directly from the intrinsic nature of the material constituting it and / or joints linking the different parts of the component.
Dans le cas d'une fermeture à arbre fixe, l'enroulement du tablier est traditionnellement réalisé autour d'au moins une bobine montée mobile en rotation sur ledit arbre fixe.In the case of a fixed-shaft closure, the winding of the deck is traditionally performed around at least one spool mounted to rotate on said fixed shaft.
Chaque bobine est par ailleurs reliée à l'arbre fixe par l'intermédiaire d'un ressort de compensation de type spiral, enroulé à l'intérieur même de ladite bobine.Each coil is also connected to the fixed shaft by means of a spiral-type compensation spring, wound inside said coil itself.
Ce moyen de rappel élastique est chargé de contrebalancer au moins partiellement le poids du tablier en restituant au cours de la phase d'ouverture, l'énergie emmagasinée sous forme de couple lors de la phase de fermeture.This elastic return means is responsible for counterbalancing at least partially the weight of the apron by restoring during the opening phase, the stored energy in the form of torque during the closing phase.
Comme toutes les fermetures à effacement vertical, les rideaux à enroulement autour d'un arbre fixe sont soumis à un certain nombre d'exigence réglementaire et normative.Like all vertical erasure closures, roller curtains around a fixed shaft are subject to a number of regulatory and prescriptive requirements.
Parmi celles-ci, la norme française NF P 25-362 remplacée par la norme européenne EN 12604 : 2000, ayant le statut d'une norme française, prenant effet au 20 janvier 2001, concerne la sécurité des utilisateurs en cas de défaillance de la fermeture.Among these, the French standard NF P 25-362 replaced by the European standard EN 12604: 2000, having the status of a French standard, taking effect on January 20, 2001, concerns the safety of users in case of failure of the closing.
Elle stipule notamment à son paragraphe 4.3.4c, qu'en cas « de défaillance dans le système de suspension de la porte, le vantail doit être immobilisé après un éventuel mouvement de descente (ou une chute) de 300mm maximum et être maintenu dans cette position en toute sécurité aussi longtemps qu'aucune nouvelle intervention n'est effectuée ».It states in particular in its paragraph 4.3.4c, that in case of "failure in the suspension system of the door, the leaf must be immobilized after a possible downward movement (or a fall) of 300mm maximum and be maintained in this position safely as long as no new intervention is performed. "
Or, un tablier présente un poids relativement important, allant généralement de plusieurs dizaines à plusieurs centaines de kilogrammes. Combinée à une vitesse de chute élevée, cette masse constitue un réel danger pour les utilisateurs.However, an apron has a relatively large weight, generally ranging from several tens to several hundred kilograms. Combined with a high fall speed, this mass is a real danger for users.
On connaît de l'état de la technique très peu de dispositifs de sécurité capables de stopper la chute d'un tablier de fermeture à arbre fixe, en cas de rupture d'au moins un des ressorts de compensation utilisés.Very few safety devices are known from the state of the art capable of stopping the fall of a fixed-tree closing apron, in case of rupture of at least one of the compensation springs used.
La demande de
Mais quel que soit le mode de réalisation choisi, la mise en oeuvre de chacun de ces dispositifs de retenue apparaît extrêmement complexe, en raison du nombre important de pièces supplémentaires requis ainsi que des profondes modifications structurelles et fonctionnelles que cela entraîne. Cette complexité constitue bien évidemment un inconvénient majeur en terme de fiabilité et de coût. En ce qui concerne plus particulièrement ce dernier aspect, il est nécessaire de prendre en compte le prix de revient du dispositif de retenue proprement dit, mais également et surtout, le coût important de son adaptation sur la fermeture à enroulement. Il en résulte que le surcoût exigé pour l'installation de tels systèmes de sécurité peut devenir dissuasif pour l'éventuel utilisateur.But whatever the embodiment chosen, the implementation of each of these retaining devices appears extremely complex, because of the large number of additional parts required and the profound structural and functional changes that entails. This complexity is obviously a major drawback in terms of reliability and cost. As regards more particularly this last aspect, it is necessary to take into account the cost price of the retaining device itself, but also and above all, the important cost of its adaptation on the roller closure. As a result, the additional cost required for the installation of such security systems can become a deterrent for the potential user.
De manière à remédier à l'ensemble de ces inconvénients, la demanderesse a décrit dans ses
Selon le brevet N°
Ce dispositif ainsi décrit présente l'avantage d'être de conception extrêmement simple puisque ce système de sécurité ne nécessite la coopération que de deux pièces seulement, à savoir, un élément de blocage mobile et un organe statique. Par conséquent, et contrairement aux anti-chutes de l'art antérieur précédemment évoqué, l'adaptation d'un tel dispositif de retenue ne requiert que des modifications mineures au niveau de la structure intrinsèque de la fermeture à enroulement. En effet, ces transformations se limitent pour l'essentiel à simplement solidariser l'extrémité externe du ressort spiral de compensation à un élément de blocage monté mobile en déplacement sur la bobine correspondante. Cela ne remet nullement en cause le classique mécanisme de la fermeture, que ce soit d'un point de vue structurel et/ou fonctionnel. Pour toutes ces raisons, le dispositif de retenue décrit bénéficie d'une fiabilité accrue ainsi que d'un prix de revient particulièrement bas par rapport aux systèmes équivalents déjà connus.This device thus described has the advantage of being of extremely simple design since this security system requires the cooperation of only two parts, namely, a movable locking member and a static member. Therefore, and contrary to the antecedents of the prior art previously mentioned, the adaptation of such a retaining device requires only minor changes in the intrinsic structure of the winding closure. In Indeed, these transformations are essentially limited to simply secure the outer end of the compensating spiral spring to a locking member mounted movably in displacement on the corresponding coil. This does not call into question the classic mechanism of closure, whether from a structural and / or functional point of view. For all these reasons, the described retaining device has increased reliability as well as a particularly low cost compared to equivalent systems already known.
Si le dispositif de retenue est structurellement d'une extrême simplicité, il en va bien évidemment de même en ce concerne sa mise en oeuvre. Le ressort de compensation est en effet l'unique pièce commandant l'immobilisation ou le déplacement de l'élément de blocage par rapport à la bobine. En d'autres termes, il assure seul l'immobilisation de l'élément de blocage en position passive, il en commande également seul le déplacement en direction de l'organe statique, et enfin il en garantit seul le maintien en position active ; les positions passives et actives étant celles dans lesquelles ledit élément de blocage et ledit organe statique sont respectivement à distance et au contact l'un de l'autre.If the restraint system is structurally extremely simple, it is obviously the same with regard to its implementation. The compensation spring is indeed the only part controlling the immobilization or displacement of the locking element with respect to the coil. In other words, it alone ensures the immobilization of the blocking element in the passive position, it also controls only the movement towards the static member, and finally it guarantees only the maintenance in the active position; the passive and active positions being those in which said blocking element and said static body are respectively at a distance and in contact with each other.
La position de l'élément de blocage par rapport à l'organe statique dépend donc uniquement et surtout directement de l'état du ressort de compensation.The position of the locking element with respect to the static member therefore depends solely and especially directly on the state of the compensation spring.
En conditions normales d'utilisation, le ressort de compensation est tendu en permanence en raison d'un excès d'enroulement de la spire le constituant, et ceci quelle que soit la position du tablier. Comme par ailleurs son extrémité interne est fixe, la force de rappel ne se fait ressentir qu'à son extrémité externe. C'est en effet la seule susceptible de se déplacer, pour la double raison qu'elle est solidarisée à l'élément de blocage monté mobile en déplacement sur la bobine d'une part, et que ladite bobine est elle-même montée mobile en rotation autour de l'arbre fixe d'autre part. La seule force de rappel permet ainsi de maintenir avantageusement l'élément de blocage en position passive, c'est-à -dire à distance de l'organe statique. Cet équilibre reste parfaitement stable aussi longtemps que le ressort de compensation conserve ses propriétés mécaniques originelles.Under normal conditions of use, the compensation spring is constantly stretched due to excessive winding of the coil constituting it, and this regardless of the position of the deck. As also its internal end is fixed, the restoring force is only felt at its outer end. It is indeed the only one likely to move, for the double reason that it is secured to the locking element mounted movably moving on the coil on the one hand, and that said coil is itself mounted mobile in rotation around the fixed shaft on the other hand. The only restoring force thus makes it possible to advantageously maintain the blocking element in the passive position, that is to say at a distance from the static body. This balance remains perfectly stable as long as the compensation spring retains its original mechanical properties.
Lorsqu'une défaillance intervient au niveau du ressort de compensation, la rupture se produit systématiquement à l'endroit où les sollicitations sont maximales, c'est-à -dire là où la courbure est la plus forte. La partie concernée correspond bien entendu à l'extrémité interne du ressort de compensation, et plus généralement à toute la zone située à proximité du point de fixation sur l'arbre fixe. Le ressort de compensation se voit donc libéré de l'intérieur, de toute contrainte mécanique de sorte que la force de rappel disparaît.When a failure occurs at the compensation spring, the break occurs systematically at the point where the stresses are maximum, that is to say where the curvature is the strongest. The part concerned corresponds, of course, to the internal end of the compensation spring, and more generally to the entire zone located near the attachment point on the fixed shaft. The compensation spring is thus released from the inside, from any mechanical stress so that the restoring force disappears.
Comme le ressort de compensation est enroulé sur lui-même lorsque la fermeture fonctionne normalement, le volume qu'il occupe à l'intérieur de la bobine est très nettement inférieur à celui qu'il possède au repos, c'est-à -dire lorsqu'il n'est soumis à aucune contrainte d'enroulement. Aussi, après rupture, il va avoir tendance à reprendre naturellement sa forme originelle. En cas de défaillance, il se produit par conséquent une expansion sensiblement radiale du ressort de compensation qui tend à s'écarter au maximum de l'axe autour duquel il était enroulé. Ce mouvement se poursuit jusqu'à ce que le déploiement du ressort soit stoppé, en raison de l'espace limité existant à l'intérieur de la bobine.Since the compensation spring is wound on itself when the closure functions normally, the volume it occupies inside the coil is very much lower than that which it has at rest, that is to say when not subject to any winding stress. Also, after rupture, it will tend to resume naturally its original form. In the event of a failure, there is therefore a substantially radial expansion of the compensation spring which tends to deviate at most from the axis around which it was wound. This movement continues until the deployment of the spring is stopped, due to the limited space inside the coil.
Lors du relâchement du ressort de compensation, l'extrémité la plus mobile du ressort de compensation subit très logiquement un déplacement en spirale en raison de la nature intrinsèque dudit ressort. Ce déplacement est orienté suivant le sens d'enroulement de la spire, de l'intérieur vers l'extérieur puisque la rupture a lieu au niveau de l'extrémité interne du ressort spiral. En fin de parcours, l'inertie générée par ce mouvement provoque une légère rotation du ressort de compensation car ce dernier n'est pas totalement maintenu à ce moment précis. Bien que solidarisée à l'élément de blocage, son extrémité externe est en effet susceptible de se déplacer. Par ailleurs, le mouvement de rotation en question est dirigé dans le même sens que le déplacement de l'extrémité interne précédemment décrit.When the compensation spring is released, the most mobile end of the compensation spring is very logically subjected to a spiral movement because of the intrinsic nature of said spring. This movement is oriented along the winding direction of the turn, from the inside to the outside since the break occurs at the inner end of the spiral spring. At the end of the run, the inertia generated by this movement causes a slight rotation of the compensation spring because the latter is not completely maintained at this precise moment. Although secured to the locking element, its outer end is indeed likely to move. Moreover, the rotational movement in question is directed in the same direction as the displacement of the internal end previously described.
Lorsqu'il n'est plus soumis à la force de rappel exercée par le ressort de compensation, l'élément de blocage est par conséquent libre de quitter sa position passive et de se déplacer par rapport à la bobine sur laquelle il est monté mobile, en direction de l'organe statique. Cela sous-entend bien évidemment qu'il puisse être entraîné en déplacement par l'intermédiaire d'un organe en mouvement. C'est précisément ce qui se produit lorsque le ressort de compensation rompt puis s'anime du double mouvement d'extension radiale et de rotation précédemment décrit. L'élément de blocage, solidarisé à l'extrémité externe du ressort de compensation, est alors déplacé jusqu'à la position active dans laquelle il coopère par blocage avec l'organe statique.When no longer subjected to the restoring force exerted by the compensation spring, the locking element is therefore free to leave its passive position and move relative to the coil on which it is mounted, in the direction of the static organ. This obviously implies that it can be driven on the move through a moving body. This is precisely what happens when the compensation spring breaks then animates the double movement of radial extension and rotation previously described. The locking element, secured to the outer end of the compensation spring, is then moved to the active position in which it cooperates by locking with the static member.
Une fois cette position extrême atteinte, l'élément de blocage est maintenu au contact de l'organe statique grâce au fait que l'expansion radiale du ressort de compensation est limitée par le faible volume disponible à l'intérieur de la bobine, et qu'ainsi ledit ressort vient très vite se bloquer contre la portion de tablier entourant ladite bobine, immobilisant par conséquent ledit élément de blocage.Once this extreme position is reached, the blocking element is held in contact with the static member by virtue of the fact that the radial expansion of the compensation spring is limited by the small volume available inside the coil, and that thus said spring comes very quickly to lock against the apron portion surrounding said coil, thereby immobilizing said locking member.
Par ailleurs, le dispositif de retenue comporte des moyens de guidage aptes à diriger le déplacement de l'élément de blocage en direction de l'organe statique, en cas de rupture du ressort de compensation ; le déplacement envisagé s'effectuant entre la position passive dans laquelle l'élément de blocage est à distance de l'organe statique et la position active dans laquelle ledit élément de blocage est en contact avec ledit organe statique.Furthermore, the retaining device comprises guide means adapted to direct the movement of the locking element towards the static member, in case of rupture of the compensation spring; the envisaged displacement occurring between the passive position in which the blocking element is at a distance from the static body and the active position in which the said blocking element is in contact with the said static body.
Après une rupture, le ressort de compensation est animé d'un mouvement complexe résultant sensiblement de la combinaison entre une expansion radiale et une rotation dans le sens d'enroulement de la spire. Aussi, il est particulièrement avantageux de contrôler le déplacement de son extrémité externe afin que l'élément de blocage mobile soit dirigé de manière sûre et efficace en direction de l'organe statique. Le but est ici avant tout d'éviter les risques d'accrochage du ressort de compensation et/ou de l'élément de blocage avec un quelconque élément, présent à l'intérieur de la bobine, autre que l'organe statique. Des moyens de guidage ménagés de manière adéquate permettent avantageusement d'atteindre cet objectif.After a break, the compensation spring is driven by a complex movement resulting substantially from the combination of radial expansion and rotation in the winding direction of the turn. Also, it is particularly advantageous to control the movement of its outer end so that the movable locking element is safely and effectively directed towards the static member. The purpose here is above all to avoid the risk of attachment of the compensation spring and / or the locking element with any element, present inside the coil, other than the body static. Advantageously arranged guiding means advantageously make it possible to achieve this objective.
Les dispositifs décrits dans les brevets précités N° 2 756 319 et N° 2 772 070 ne présentent pas d'inconvénient particulier qu'entendrait résoudre l'invention.The devices described in the aforementioned patents No. 2,756,319 and No. 2,772,070 do not have any particular disadvantage that the invention intends to solve.
Au contraire, elle est basée sur les principes qui viennent d'être énoncés, qui ont donné jusqu'à présent entière satisfaction.On the contrary, it is based on the principles that have just been stated, which have so far given complete satisfaction.
En fait, l'invention a pour but de proposer une variante de réalisation ainsi qu'un certain nombre de perfectionnements apportés à l'ensemble du dispositif.In fact, the object of the invention is to propose an alternative embodiment as well as a certain number of improvements made to the entire device.
A cet effet, l'invention concerne un dispositif anti-chute d'un tablier de fermeture destiné à être enroulé autour d'au moins une bobine montée mobile en rotation sur un arbre fixe et reliée à celui-ci par l'intermédiaire d'un ressort de compensation enroulé sur lui-même entre deux flans de la bobine et dont l'extrémité interne est solidaire de l'arbre, alors que son extrémité externe coopère avec un élément de blocage monté mobile en déplacement sur ladite bobine, de manière à ce qu'en cas de défaillance du ressort de compensation, ledit élément vienne coopérer par blocage avec une partie formant butée d'un organe statique solidaire de l'arbre fixe et donc du tablier, caractérisé en ce que l'élément de blocage coopérant avec l'extrémité externe du ressort de compensation est constitué par un doigt interposé entre les deux flans, globalement parallèles, délimitant la bobine, dont une partie externe coopère avec un organe de poussée élastique et dont une partie interne coopère avec l'extrémité du ressort de compensation, lequel doigt est susceptible de se déplacer axialement selon un axe parallèle à celui de l'arbre, entre deux positions, l'une dite de déverrouillage dans laquelle il est maintenu à distance de la partie formant butée de l'organe statique, en mettant l'organe de poussée axiale sous contrainte, par la seule force de rappel du ressort au niveau de son extrémité externe, et l'autre dite de verrouillage dans laquelle le doigt n'est plus soumis à la force de rappel du ressort de compensation, notamment en cas de rupture ou de perte des caractéristiques mécaniques de celui-ci, mais à la seule force axiale de l'organe de poussée élastique, provoquant le déplacement axial du doigt vers la partie formant butée de l'organe statique et conséquemment l'immobilisation en rotation de la bobine par rapport à l'arbre fixe, d'où du tablier.For this purpose, the invention relates to an anti-fall device of a closing apron intended to be wound around at least one spool mounted to rotate on a fixed shaft and connected thereto via a compensation spring wound on itself between two blanks of the coil and whose inner end is integral with the shaft, while its outer end cooperates with a locking element mounted to move on said coil, so as to in case of failure of the compensation spring, said element comes to cooperate by locking with a stop portion of a static member integral with the fixed shaft and therefore of the apron, characterized in that the locking element cooperating with the outer end of the compensation spring is constituted by a finger interposed between the two blanks, generally parallel, delimiting the coil, an outer portion of which cooperates with an elastic thrust member and an inner portion of which cooperates with the end of the compensation spring, which finger is able to move axially along an axis parallel to that of the shaft, between two positions, one of which unlocking in which it is kept at a distance from the abutment portion of the static member, by putting the axial thrust member under stress, by the single return force of the spring at its outer end, and the other said in which the finger is no longer subjected to the restoring force of the compensating spring, in particular in case of breakage or loss of the mechanical characteristics thereof, but to the single axial force of the elastic thrust member , causing the axial displacement of the finger towards the abutment portion of the static member and consequently immobilization in rotation of the coil relative to the fixed shaft, hence the apron.
La présente invention concerne également les caractéristiques qui ressortiront au cours de la description qui va suivre, et qui devront être considérées isolément ou selon toutes leurs combinaisons techniques possibles.The present invention also relates to the features which will emerge during the following description, which should be considered in isolation or in all their possible technical combinations.
Cette description donnée à titre d'exemple non limitatif, fera mieux comprendre comment l'invention peut être réalisée en référence aux dessins annexés sur lesquels :
- La
figure 1 représente en perspective le dispositif anti-chute selon l'invention en position passive. - La
figure 2 représente en perspective le dispositif anti-chute selon l'invention en position active. - La
figure 3 représente un dispositif anti-chute selon lesfigures 1 et 2 en cours de montage de l'élément de blocage. - La
figure 4 est une vue schématique en coupe du dispositif anti-chute selon lafigure 1 . - La
figure 5 est une vue en perspective d'une bobine seule avant montage du ressort de compensation et de l'élément de blocage. - La
figure 6 est une vue en perspective éclatée selon lafigure 5 . - La
figure 7 est une vue en plan extérieur d'un flan droit de la bobine selon lesfigures 5 .et 6 - La
figure 8 est une vue en perspective du détail A de lafigure 7 . - La
figure 9 est une vue en coupe selon la ligne VIII, VIIIa de lafigure 8 . - La
figure 10 est une vue en coupe selon la ligne VIII, VIIIb de lafigure 8 . - La
figure 11 est une vue en plan intérieur du flan gauche de la bobine selon lesfigures 5 .et 6 - La
figure 12 est une vue à échelle agrandie du détail B selon la coupe XII, XII de lafigure 11 . - La
figure 13 est une vue en plan extérieur de l'organe statique. - La
figure 14 est une vue en coupe selon la ligne XIV, XIV de lafigure 13 .
- The
figure 1 represents in perspective the anti-fall device according to the invention in the passive position. - The
figure 2 represents in perspective the anti-fall device according to the invention in the active position. - The
figure 3 represents an anti-fall device according tofigures 1 and2 during assembly of the locking element. - The
figure 4 is a schematic sectional view of the fall arrest device according to thefigure 1 . - The
figure 5 is a perspective view of a single coil before mounting the compensation spring and the locking member. - The
figure 6 is an exploded perspective view according to thefigure 5 . - The
figure 7 is an external plan view of a right side of the spool according toFigures 5 and 6 . - The
figure 8 is a perspective view of detail A of thefigure 7 . - The
figure 9 is a sectional view along line VIII, VIIIa of thefigure 8 . - The
figure 10 is a sectional view along line VIII, VIIIb of thefigure 8 . - The
figure 11 is an interior plan view of the left flank of the spool according toFigures 5 and 6 . - The
figure 12 is an enlarged view of detail B according to section XII, XII of thefigure 11 . - The
figure 13 is an external plan view of the static organ. - The
figure 14 is a sectional view along the line XIV, XIV of thefigure 13 .
Le dispositif 1 globalement désigné sur les figures permet d'interdire la chute d'un tablier de fermeture (non représenté).The
Il est destiné à être intégré à au moins une bobine 2 montée mobile en rotation sur arbre fixe 3 et reliée à celui-ci par l'intermédiaire d'un ressort de compensation 4 enroulé sur lui-même entre deux flans 5 et 6 de la bobine 2 et dont l'extrémité interne 4a est solidaire de l'arbre 3, alors que son extrémité externe 4b coopère avec un élément de blocage 7 monté mobile en déplacement sur ladite bobine 2, de manière à ce qu'en cas de défaillance du ressort de compensation 4, ledit élément 7 vienne coopérer par blocage avec une partie formant butée 8 d'un organe statique 9 solidaire de l'arbre fixe 3 et donc du tablier.It is intended to be integrated with at least one
Selon la présente invention, l'élément de blocage 7 coopérant avec l'extrémité externe 4b du ressort de compensation 4 est constitué par un doigt interposé entre les deux flans 5, 6, globalement parallèles, délimitant la bobine 2, dont une partie externe 7a est en liaison avec un organe de poussée élastique 10 et dont une partie interne 7b coopère avec l'extrémité 4b du ressort de compensation 4.According to the present invention, the locking element 7 cooperating with the
Le doigt 7 est susceptible de se déplacer axialement selon un axe parallèle X, X' à celui Y, Y' de l'arbre 3, entre deux positions A, B, l'une A dite de déverrouillage dans laquelle il est maintenu à distance de la partie formant butée 8 de l'organe statique 9, en mettant l'organe de poussée axiale 10 sous contrainte, par la seule force de rappel du ressort 4 au niveau de son extrémité externe 4b.The finger 7 is capable of moving axially along an axis parallel X, X 'to that Y, Y' of the
Dans l'autre position B dite de verrouillage le doigt 7 n'est plus soumis à la force de rappel du ressort de compensation 4, notamment en cas de rupture ou de perte des caractéristiques mécaniques de celui-ci, mais à la seule force axiale de l'organe de poussée élastique 10.In the other position B called locking the finger 7 is no longer subjected to the restoring force of the
Ainsi est provoqué le déplacement axial du doigt 7 vers la partie formant butée 8 de l'organe statique 9 et conséquemment l'immobilisation en rotation de la bobine 2 par rapport à l'arbre fixe 3, d'où du tablier.Thus is caused the axial displacement of the finger 7 towards the
Selon un mode préférentiel de réalisation le doigt 7 est cylindrique et réalisé de manière étagée selon deux diamètres différents D1, D2 délimitant un épaulement E entre eux. La zone de plus faible diamètre D1 constitue sa partie interne et celle du plus grand diamètre D2 sa partie externe. La retenue en position de verrouillage A, par la seule force de rappel du ressort 4 au niveau de son extrémité 4b, s'effectue par l'intermédiaire de l'épaulement E qui constitue une butée venant contre le champ de ladite extrémité 4b du ressort 4, lorsque celui-ci est tendu donc opérationnel. Le déverrouillage selon la position B du doigt 7 s'effectue par libération de son épaulement E, lors d'une détente de la force d'enroulement du ressort 4, notamment par rupture de celui-ci, provoquant un développement de son diamètre.According to a preferred embodiment, the finger 7 is cylindrical and staggered in two different diameters D1, D2 delimiting a shoulder E between them. The zone of smaller diameter D1 constitutes its inner part and that of the largest diameter D2 its external part. The retention in the locking position A, by the single restoring force of the
La zone de plus grand diamètre D2 du doigt 7 constituant sa partie externe 7a est en liaison avec l'organe de poussée élastique 10 qui est constitué par un ressort en spiral monté en extension entre l'extrémité externe du doigt 7 et une partie fixe d'un des flans 5 constituant la bobine 2 opposé à celui 6 en vis à vis de l'organe statique 8.The zone of larger diameter D2 of the finger 7 constituting its
Selon un perfectionnement de l'invention particulièrement bien visible sur les
Selon un autre perfectionnement de l'invention particulièrement bien visible sur les
Cette caractéristique se voit particulièrement bien sur la
Dans ce cas, comme dans le précédent les crevés 11 et 12 contribuent efficacement à rigidifier les flans 6 et 5 et conséquemment renforcer le maintien du doigt 7, en position de déverrouillage. En effet, dans ce cas, il a pour rôle de maintenir l'extrémité du ressort 4 qui est tendu.In this case, as in the previous, the
Selon un autre perfectionnement de l'invention, des moyens d'accrochage extérieurs 14, 15 d'une extrémité du ressort à extension 10, constituant l'organe de poussée élastique, sont constitués par des crochets 14, 15 obtenus par déformation de matière du flan 5, autour du trou de passage 13 du doigt 7. Ce perfectionnement est particulièrement bien visible sur la
Selon une caractéristique avantageuse de l'invention, chacun des flans 5, 6 intègrent, pour l'un 5 les moyens d'accrochage 14, 15 du ressort 10 et l'un des paliers 12 du doigt 7, et pour l'autre 6 l'autre palier 10 du doigt 7 et une butée du ressort de compensation 4, sont constitués par une pièce unique, obtenue par estampage à partir d'une tôle d'acier plane en une seule opération.According to an advantageous characteristic of the invention, each of the
Comme le montre bien les
Ces barrettes 22 sont rigidifiées par une opération d'estampage en creux dont le bombé 22a est tourné vers l'extérieur et elles contribuent à la réalisation de la bobine 2 en la renforçant.These
Par contre, l'une 22A de ces barrettes, disposée à proximité des crevés 11, 12 des flancs 6, 5, supportant le doigt d'accrochage 7, du ressort 4, bien qu'identique aux autres barrettes 22, présente la particularité d'être retournée pour que sa partie bombée soit tournée vers l'intérieur et donc sa partie en creux 22Aa vers l'extérieur. On notera également que ladite barrette 22A est décalée périphériquement vers l'intérieur par rapport aux autres pour permettre au ressort 4, à proximité de son extrémité 4b, de passer au-dessus de la barrette 22A en recouvrant sa partie en creux 22Aa tournée vers l'extérieur, donc vers le ressort la recouvrant. Ceci a pour but de limiter et contrôler l'expansion et le frottement, lors d'une rupture du ressort.On the other hand, one 22A of these bars, disposed near the
Selon une autre caractéristique de l'invention illustrée par les
Comme pour les flans 5 et 6, l'organe statique 9 est obtenu par estampage à partir d'une tôle d'acier plane en une seule opération.As for the
Comme le montre également ces figures, l'organe statique 9 est rendu solidaire de l'arbre 3 par l'intermédiaire des pattes 16 s'étendant axialement à partir du corps de l'organe statique 9 et qui sont percés de trous 17 de fixation à l'arbre.As also shown in these figures, the
Comme le montre les
Claims (9)
- Fall-arresting device for a shutter apron intended to be wound around at least one reel (2) mounted such that it can rotate on a fixed shaft (3) and connected to this shaft via a compensating spring (4) wound on itself between two cheeks (5, 6) of the reel (2) and the internal end (4a) of which is secured to the shaft (3) while its external end (4b) collaborates with an immobilizing element (7) mounted such that it can move in terms of displacement on the said reel (2) such that in the event of failure of the compensating spring (4), the said element (4) will collaborate in an immobilizing manner with a stop-forming part (8) of a static component (9) secured to the fixed shaft (3) and therefore to the apron, the said immobilizing element (7) consisting of a finger inserted between the two mainly parallel cheeks (5, 6) delimiting the reel (2), an external part (7a) of which is connected to an elastic thrusting member (10) and an internal part (7b) of which collaborates with the end (4b) of the compensating spring (4), which finger (7) is able to move axially along an axis (X, X') parallel to that (Y, Y') of the shaft (3), characterized in that the internal face of the cheek (6) facing the static component (9) comprises a peripheral recess (11) surrounding a hole (11A) for the passage of the finger (7) through the said cheek (6) and which faces towards the stop-forming part (8) of the static component (9) in such a way as to constitute both a bearing for the said finger (7) and an end stop for the compensating spring (4) preventing any lateral movement thereof on the rim of the cheek (6) liable to cause the spring (4) to jam and impair the operation of the device.
- Device according to Claim 1, characterized in that the internal face of the cheek (5) opposite the one (6) facing the static component (9) comprises a peripheral recess (12) surrounding the corresponding passage hole (13) for the finger (7) and directed towards the elastic thrusting member (10) thereof, so as to constitute a bearing.
- Device according to Claim 2, characterized in that external attachment means (14, 15) for attaching one end of the extension spring (10) that constitutes the elastic thrusting member, consist of hooks (14, 15) obtained by deforming some of the material of the cheek (5) around the passage hole (13) for the finger (7).
- Device according to one of Claims 1 to 3, characterized in that the cheeks (5, 6) incorporate, one (5) of them the means (14, 15) of attachment of the spring (10) and one of the bearings (12) for the finger (7) and the other (6) the other bearing (10) for the finger (7) and an end stop for the compensating spring (4), and are each made of a single piece obtained by pressing a flat steel plate in a single operation.
- Device according to one of Claims 1 to 4, characterized in that the cheeks (5, 6) are joined together by connecting bars (22) positioned between the said cheeks, then clipped in place by deforming (23) the end of the said bars after they have passed through corresponding holes (24) in the cheeks.
- Device according to Claim 5, characterized in that the bars (22) are stiffened by an operation of pressing them into a hollowed out shape with the convex curvature (22a) of which faces outwards in order to contribute towards producing the reel (2) while at the same time strengthening it.
- Device according to one of Claims 5 and 6, characterized in that one (22A) of these bars positioned near the recesses (11, 12) in the cheeks (6, 5) supporting the attachment finger (7) for the spring (4), although identical to the other bars (22), has the special feature of being inverted so that its convex curvature faces towards the inside and its recessed part (22Aa) therefore faces towards the outside, the said bar (22A) being peripherally offset towards the inside with respect to the other bars in order to allow the spring (4), near its end (4b), to pass over the bar (22A) thereby covering its recessed part (22Aa) that faces towards the outside and therefore towards the spring covering it in such a way as to limit and control expansion and friction should the spring break.
- Device according to one of the preceding claims, characterized in that the static component (9) comprises stop-forming parts (8) consisting of peripheral apertures open at one of their ends and closed at their other end, in the direction of the immobilization to be obtained in the event of the unlocking of the finger (7) which becomes lodged in the nearest aperture (8), the spacing between two apertures corresponding to an apron drop of less than thirty centimetres.
- Device according to Claim 8, characterized in that the static component (9) is obtained by pressing from a flat steel plate in a single operation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0108711A FR2826688B1 (en) | 2001-06-28 | 2001-06-28 | ANTI-FALL DEVICE FOR A WINDING CLOSURE |
FR0108711 | 2001-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1270866A1 EP1270866A1 (en) | 2003-01-02 |
EP1270866B1 true EP1270866B1 (en) | 2008-03-05 |
Family
ID=8864997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02291394A Expired - Lifetime EP1270866B1 (en) | 2001-06-28 | 2002-06-06 | Fall arrest device for rollable closure |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1270866B1 (en) |
AT (1) | ATE388298T1 (en) |
DE (1) | DE60225377T2 (en) |
ES (1) | ES2302789T3 (en) |
FR (1) | FR2826688B1 (en) |
PT (1) | PT1270866E (en) |
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ITTV20130099A1 (en) * | 2013-06-20 | 2013-09-19 | Conegliano Serramenti Srl | ANTI-FALL SAFETY DEVICE AGAINST BREAKAGE OF THE SPRING SERVICE SPRING WHEEL |
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ITPD20030052A1 (en) * | 2003-03-17 | 2004-09-18 | Ballan Spa | FALL ARRESTER SAFETY DEVICE FOR SECTIONAL DOORS |
ATE364124T1 (en) * | 2004-04-28 | 2007-06-15 | Mario Gnaccarini | DEVICE FOR FIXING A SPRING FOR ROLLER SHUTTERS AND GATES |
FR2871840B1 (en) * | 2004-06-22 | 2006-08-11 | Bmj Sarl | SYSTEM FOR UNLOCKING AN ANTI-FALL DEVICE FOR A WINDOW CLOSURE |
FR2884279B1 (en) * | 2005-04-06 | 2007-05-25 | Michel Javey | ANTI-FALL DEVICE FOR WINDOW CLOSURE WITH OR WITHOUT UNLOCKING SYSTEM |
DE602005019117D1 (en) * | 2005-10-11 | 2010-03-11 | Pastore S P A | SPRING MOUNTING DEVICE FOR ROLLER SHUTTERS AND GATES |
EP1978202A1 (en) * | 2007-04-03 | 2008-10-08 | Mario Gnaccarini | Spring-holder device for rolling gates or rolling doors and process fro manufacturing such device |
ITBO20120419A1 (en) * | 2012-07-31 | 2014-02-01 | Masinara S P A | SUPPORT DEVICE FOR A SPRING OF A ROLLER SHUTTER. |
ITBO20130065A1 (en) * | 2013-02-14 | 2014-08-15 | Masinara S P A | ROLLER BOX OF A ROLLER SHUTTER AND RELATED KITS AND ASSEMBLY METHOD. |
ITUA20164191A1 (en) * | 2016-06-08 | 2017-12-08 | Masinara S P A | PROTECTION ELEMENT FOR ROLLER BOXES OF A DAMPER. |
IT201600130739A1 (en) * | 2016-12-23 | 2018-06-23 | Masinara S P A | TOOL AND METHOD FOR THE PRE-LOADING OF AN INTERNAL SPRING WITH A SPRING BOX FOR SHUTTERS |
IT201800009646A1 (en) * | 2018-10-23 | 2020-04-23 | Antonino Siclari | New device for rolling shutters and / or rolling shutters |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2627801B1 (en) * | 1988-02-29 | 1992-02-07 | Zurfluh Feller Sa Ets | IMPROVEMENTS TO METAL CURTAINS AND ROLL-UP GRIDS BALANCED BY FLAT SPRINGS |
FR2739656B1 (en) | 1995-10-09 | 1997-11-21 | Tournier Gerard | DEVICE FOR OPERATING A WINDING CLOSURE |
FR2756319B1 (en) * | 1996-11-28 | 1999-05-21 | Javey Michel | FALL PROTECTION DEVICE FOR VERTICALLY CLEARING CLOSURES |
FR2772070B1 (en) | 1997-12-09 | 2000-01-07 | Michel Javey | RETAINER FOR WINDING CLOSURE |
-
2001
- 2001-06-28 FR FR0108711A patent/FR2826688B1/en not_active Expired - Fee Related
-
2002
- 2002-06-06 DE DE60225377T patent/DE60225377T2/en not_active Expired - Fee Related
- 2002-06-06 ES ES02291394T patent/ES2302789T3/en not_active Expired - Lifetime
- 2002-06-06 EP EP02291394A patent/EP1270866B1/en not_active Expired - Lifetime
- 2002-06-06 PT PT02291394T patent/PT1270866E/en unknown
- 2002-06-06 AT AT02291394T patent/ATE388298T1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTV20130099A1 (en) * | 2013-06-20 | 2013-09-19 | Conegliano Serramenti Srl | ANTI-FALL SAFETY DEVICE AGAINST BREAKAGE OF THE SPRING SERVICE SPRING WHEEL |
WO2014203287A1 (en) * | 2013-06-20 | 2014-12-24 | Conegliano Serramenti S.R.L. | Anti-drop safety device against torsion spring break in rolling shutter |
Also Published As
Publication number | Publication date |
---|---|
EP1270866A1 (en) | 2003-01-02 |
ES2302789T3 (en) | 2008-08-01 |
DE60225377D1 (en) | 2008-04-17 |
PT1270866E (en) | 2008-04-08 |
FR2826688B1 (en) | 2004-01-23 |
DE60225377T2 (en) | 2009-03-12 |
FR2826688A1 (en) | 2003-01-03 |
ATE388298T1 (en) | 2008-03-15 |
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