EP1816294A1 - Spring box with antidropping device for vertical roller shutter - Google Patents

Spring box with antidropping device for vertical roller shutter Download PDF

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Publication number
EP1816294A1
EP1816294A1 EP07290151A EP07290151A EP1816294A1 EP 1816294 A1 EP1816294 A1 EP 1816294A1 EP 07290151 A EP07290151 A EP 07290151A EP 07290151 A EP07290151 A EP 07290151A EP 1816294 A1 EP1816294 A1 EP 1816294A1
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EP
European Patent Office
Prior art keywords
finger
spring
rod
flanges
box
Prior art date
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Granted
Application number
EP07290151A
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German (de)
French (fr)
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EP1816294B1 (en
Inventor
Jean Louis Marinetti
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PROFILMAR
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PROFILMAR
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Priority to SI200730056T priority Critical patent/SI1816294T1/en
Publication of EP1816294A1 publication Critical patent/EP1816294A1/en
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Publication of EP1816294B1 publication Critical patent/EP1816294B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
    • E05D13/10—Counterbalance devices
    • E05D13/12—Counterbalance devices with springs
    • E05D13/1276—Counterbalance devices with springs with coiled ribbon springs, e.g. constant force springs
    • E05D13/1292—Spring safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Definitions

  • the present invention relates to a spring box of a vertical rolling curtain fall arrest device.
  • the technical sector of the invention is that of the realization of a safety device and maneuvering a closure of this type controlling the access of a garage, a store, a warehouse, an bay, etc ...
  • the main purpose of the invention is to meet the criteria that must meet such safety devices, especially in the context of standards, particularly French and European.
  • the reference standards and more particularly the standards NFP 25362, NF EN 12453, NF EN 12604 and NF EN 13241-1 specify "that vertical erasure closures must include a restraint, unsolicited in normal operation, preventing the fall of the deck in case of failure of one of the elements of the carrier system, subject to a path limited to 0.30 meter or 300 mm ".
  • the considered failure is for example the breaking or unloading of a cable, a chain, a strap etc ... of suspension of the curtain, or the rupture of a compensation spring or any other element of the mechanism for winding and / or suspending the curtain.
  • a large number of safety devices are based on the principle of the angular offset between a driving shaft and a driven shaft connected by a return spring. This shift tends to cancel in the event of a reduction in the load or the driving force, or on the contrary to increase in the case of overload.
  • a non-nominal value of this angular offset triggers the shutdown of the system, its blocking or an alarm, whether by exclusively mechanical means, or electrical or electronic.
  • the US patent US-2,878,865 for example, published March 24, 1959 , and owned by the company US Steel, implements this principle, and discloses a device for stopping the fall of a roller shutter in the event, in particular, rupture of the compensation spring.
  • the locking element is a pawl associated with a ratchet wheel.
  • the patent application FR-2.739.656 published April 11, 1997, in the name of G. Tournier describes a device for actuating a roll-up closure having a spring-loaded fall arrest system.
  • the device comprises a fixed axis on which is mounted at least one coil provided with at least one spiral compensation spring.
  • the inner end of the spring is integral with the fixed axis and its outer end is integral with the coil, the latter being itself coupled to the upper end of the apron performing the closure. winding.
  • the safety device for stopping the fall of the apron in case of breakage of the spring is such that it allows coupling the coil to the fixed axis after an angular displacement of this coil relative to the locking device, this movement being controlled by a return element mounted between the coil and this locking device.
  • a winding flange secured to the upper part of the deck is coupled to the coil by a finger secured to the coil, and passing through the flange to move a movable member between a waiting position, in operation normal, and a locking position with a toothed wheel secured to the fixed axis, the finger remaining still engaged in the mobile device, in case of failure of the spring.
  • This vertical displacement locking device comprises in a known manner, both in the vertical panel closing devices and in the "winch" type drive systems, a fixed shaft, at least one flange rotating relative to this shaft and whose rotation ensures the vertical movement of the closure, and a means of compensation of the weight of the closure by action on the flange.
  • this compensation means is constituted by a "spiral" type spring whose inner end is fixed on the fixed axis and the outer end is fixed to a bell, covering this outer end, and one of which side wall is constituted by the flange.
  • the fall arrest device also comprises a toothed wheel secured to the shaft and a rocking lock rotated by the flange.
  • the lock is adapted to cooperate with at least one notch of the toothed wheel and to block the rotation of the flange to prevent the free fall of the panel.
  • the rocker lock further includes a finger, at least one side edge of the end is beveled along a plane secant with the casing cylinder of the toothed wheel, which finger is laterally movable relative thereto a race allowing him at least to escape the guts.
  • the toothed wheel of this device comprises at least two rings.
  • the first comprises locking notches in rotation of the closure.
  • the second placed laterally with respect to the first in the direction of the lateral displacement of the finger, comprises at least one cam whose face against which the beveled lateral edge of the end of the finger rests is able to evade this. this completely from the notched wheel in the direction of the rise of the closure.
  • the other face is able to bear the end of this finger. It is profiled along a slope bringing this end in front of a locking catch in the direction of the descent of the closure: the distance between two positions of successive cams is at least equal to that separating two notches.
  • the present invention aims to continue the improvement process of the spring box manufactured by the applicant by simplifying the mechanical elements which does not depend on reliability, and making modular, and possibly replaceable, security elements.
  • the rocking latch of this model comprises a finger articulated by its base on one of the flanges in an axial direction and a radial direction relative to the fixed shaft.
  • the lock also comprises a return spring acting on the finger of the lock, so that this finger, at least one side edge of the end is beveled along a plane secant with the cylinder wrapped with the toothed wheel, is capable of escape the notch at least following a race in this axial direction.
  • the lock with two degrees of freedom of rotation of the old model has many advantages: it is also preserved.
  • the vertical displacement roller shutter device spring box according to the invention is remarkable in that the outer end of the compensation spring is made integral by means of fixing a bar mounted to move in translation in two parallel buttonholes each arranged adjacent the periphery of each of the flanges of the coil.
  • This bar cooperates with the finger end of the lock and keeps this finger away from the notch of the notched wheel in the normal state of the compensation spring.
  • the end of the bar is disassociated from the end of the lock finger after the breaking of the compensation spring, releasing the end of this finger. This is then driven in a radial direction by the return spring towards the notch of the toothed wheel.
  • the fixing means of the compensation spring on the bar comprise a clip.
  • This bar advantageously consists of a cylindrical rod whose two ends are provided with circlips cooperating with the edges of the buttonholes arranged in the flanges.
  • the end of the bar cooperating with the finger of the lock is constituted by a movable stirrup.
  • the base of the latch finger is articulated on an axial pin integral with one of the flanges of the coil.
  • the base of the finger is articulated on a cylindrical rod arranged axially in two bores of these flanges.
  • the lock before assembly, further comprises a holding member to be removed after mounting, preferably a plastic ring now compressed the return spring.
  • the base of the finger has a U-shaped cross section, at least one oblong slot of a width substantially equal to but greater than the diameter of the rod or the pin being arranged in at least one wing of said U so as to cooperate with this rod or this nipple.
  • the invention also relates to a locking mechanism particularly adapted to the spring box described above.
  • this locking mechanism Prior to assembly to form the spring box according to the invention, this locking mechanism more advantageously comprises a holding element, intended to be removed after mounting, preferably a plastic ring arranged around at least a portion of the leg and at least a portion of the end of the finger, now compressed the return spring.
  • the base of the finger has a U-shaped cross section, at least one oblong slot of a width substantially equal to but greater than the diameter of the hinge rod being arranged in at least one wing of the U so as to cooperate with this rod.
  • Figures 1 and 2 are perspective views of a spring box of a vertical displacement rolling shutter fall arrest device according to the invention, respectively showing the locking mechanism mounted, and before mounting.
  • Figure 3 shows an axial section of the spring box according to the invention.
  • 4a and 4b are respectively detailed sections of the finger joint of the lock and the attachment of the locking mechanism according to the invention, shown by magnifying glasses A and B of FIG . 3 .
  • Figures 5a, 5b and 5c are partial perspective views, respectively, of the end of the spring of compensation and the latch finger in normal operation, the end of the compensation spring and the latch finger shortly after the breaking of the compensation spring, and the finger engaged in a notch of the toothed wheel when the coil is blocked.
  • the spring box 1 of the fall arrest device for vertical displacement closure in question is mounted on a fixed shaft 2. It comprises two flanges 3 assembled at their peripheries by spacers 31, and forming a rotating spool with respect to this shaft 2 and whose rotation ensures the vertical displacement of a curtain (not shown) secured to the box 1.
  • the fall arrest device also comprises a notched wheel 7 integral with the shaft 2, and a rocker lock 8 rotated by the flanges 3.
  • This latch 8 is adapted to cooperate with at least one notch 9 of the toothed wheel 7 and to lock the rotation of the flanges 3 to avoid the descent of the curtain.
  • the tilting bolt 8 comprises a finger 10 whose at least one lateral edge 11 of the end is bevelled along a plane intersecting with the casing cylinder of the toothed wheel 7, which is of the same axis as the fixed shaft 2.
  • the finger 10 is mounted laterally movable with respect to the toothed wheel 7 in a race allowing it to at least escape the notch 9, the secant plane being inclined of course in the direction of the lateral displacement of the lock 8.
  • Such a displacement of the finger 10 is allowed by the specific articulation that the lock 8 comprises around a cylindrical rod 12 passing through the flanges 3, which articulation, shown in section in Figure 4a , comprises an orifice 13 abutting against a shoulder 14 of this rod 12 and an oblong slot 15 located on the same side as the side edge 11 beveled finger 10, oblong light which is of a width substantially equal to but greater than the diameter of the rod 12 so as to make possible the lateral displacement of the finger 10.
  • This movement must allow the latch 8 to escape at least the notch 9 in which it would be blocked, for example following the break of the compensation spring 4, by pivoting the latch 8 around the rod 12 in an axial plane.
  • the base of the finger 10 has a U-shaped cross section whose wings carry the orifice 13 and the elongated hinge slot 15, the wing corresponding to the oblong slot 15 being bent to facilitate its pivoting.
  • the latch 8 is always prevented from tilting thanks to the stop formed by the end of the rod 16 biased towards the rod 12 and the fixed shaft 2, by the force exerted by the compensation spring 4.
  • buttonsholes 17 of the flanges being those of ropes passing between the support axis of rotation of the finger 10, that is to say the bead wire 12, and the axis of rotation of the flanges 3, that is to say say the shaft 2, any radial expansion of the compensation spring 4, leading to a radial displacement of its outer end 6, results in a distance from the end of the rod 16 of the end of the finger 10.
  • the spring box 1 is thus rotatable about the fixed support shaft 2, thanks to bearings, and is held in axial position on the shaft 2 by means of a guide plate comprising the toothed wheel 7 around it from which it can rotate freely, as shown in Figure 3 and more particularly Figure 4b.
  • the toothed wheel 7 is fixed on said shaft 1 by a through bolt 20.
  • the tilting of the lock 8 around its support axis 12 is limited by any means, such as a stop carried by the guide plate or the flange 3 opposite, or a circular shoulder forming a third ring 21 with cams 22 arranged laterally. so that the tip of the finger 10, when it is completely clear of the toothed wheel 7 in the direction of the rise of the closing apron, then come back, when we come down the closing apron, bear on a face of a cam 22.
  • the cams 22 having the same height that the teeth of the toothed wheel 7, the finger 10 of the lock 8 is brought thus, in the direction of the descent of the closing apron, to a notch 9 of the toothed wheel 7 where it locks immobilizing the curtain, after however, have allowed to unwind the apron of the closure at least one additional notch compared to the previous locking position.
  • Figures 1 and 2 show that the outer end 6 of the compensation spring 4 of the spring box according to the invention is fixed on the bar or rod 16 movable in translation in the flanges.
  • This rod 16 is an intermediate piece that plays the same role as the internal flanges of the previous spring box model.
  • the outer end 6 of the compensation spring 4 is made integral with this rod 16 by the tabs of a clip 19, in the same manner that the curved outer end of the compensation spring was fixed on the periphery of the inner flanges.
  • the end of the rod 16 has the same trigger function as the finger of the anterior internal flange.
  • the energy produced by the expansion of the compensation spring 4, when it breaks, is advantageously used to move the end of the rod 16.
  • the inertia of the rod 16 is much lower than that of the internal flanges, the response time of the parachute is improved.
  • the replacement of the internal flanges by a simple rod 16 also provides the advantages of a material saving in manufacture, and a simplification to assembly.
  • the return spring 18 Before assembly of the mechanism 8 on the flanges 3 and on the shaft 2, the return spring 18 is temporarily associated with a plastic ring 27 arranged around the fixing lug 26 of the return spring 18 and passing through a hole 30 formed in the end of the finger 10, the ring 27 having the effect of maintaining compressed the return spring 18.
  • the embodiment of the latch 8 in the form of a separate mechanism provides many advantages, but is not a technical constraint: the finger 10 is alternatively articulated on an integral pin by construction of one of the flanges 3.
  • the mechanical part on which is fixed the outer end 6 of the compensation spring 4 is not necessarily a cylindrical rod 16 as shown in the various figures. This is usually a bar that slides in two buttonholes 17. These buttonholes are preferably rectilinear, but they are also alternately in a circular arc.
  • the end of this rod, or bar also comprises, in another variant, a movable stirrup on which the finger 10 rests.
  • one or more return elements may, in these variants, connect the rod 16, or the stirrup, to at least one flanges 3.
  • the outer end 6 of the compensation spring 4 is, in the preferred embodiment of the invention, fixed by a clip 19 on the rod 16. Any other means of fixing the outer end 6 of the compensation spring 4 on the rod 16, or the bar, such as bolts and nuts, rivets, glue or solder, would not be beyond the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Clamps And Clips (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Springs (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The box has a compensating spiral spring (4) whose outer end is integrated to a bar (16) by a clip . The bar is mounted movably in translation in two key holes (17) that are arranged in parallel manner closer to periphery of flanges. The bar has an end cooperating with the end of a finger (10) to maintain the finger at a distance from a notch (9) in normal state of the spring. The end of the bar is disassociated from the end of the finger after rupture of the spring to release the end of the finger driven by a return spring (18) towards the notch along radial direction.

Description

DOMAINE TECHNIQUE DE L'INVENTIONTECHNICAL FIELD OF THE INVENTION

La présente invention concerne une boîte à ressort de dispositif antichute de rideau roulant à déplacement vertical.The present invention relates to a spring box of a vertical rolling curtain fall arrest device.

ARRIÈRE PLAN TECHNOLOGIQUE DE L'INVENTIONBACKGROUND OF THE INVENTION

Le secteur technique de l'invention est celui de la réalisation d'un dispositif de sécurité et de manoeuvre d'une fermeture de ce type contrôlant l'accès d'un garage, d'un magasin, d'un entrepôt, d'une baie, etc...The technical sector of the invention is that of the realization of a safety device and maneuvering a closure of this type controlling the access of a garage, a store, a warehouse, an bay, etc ...

Le but principal de l'invention est de respecter les critères auxquels doivent satisfaire de tels dispositifs de sécurité, notamment dans le cadre des normes, en particulier françaises et européennes.The main purpose of the invention is to meet the criteria that must meet such safety devices, especially in the context of standards, particularly French and European.

Les normes de référence, et plus particulièrement les normes NFP 25362, NF EN 12453, NF EN 12604 et NF EN 13241-1 spécifient "que les fermetures à effacement vertical doivent comporter un dispositif de retenue, non sollicité en fonctionnement normal, empêchant la chute du tablier en cas de défaillance d'un des éléments du système porteur, sous réserve d'un parcours limité à 0,30 mètre ou 300 mm".The reference standards, and more particularly the standards NFP 25362, NF EN 12453, NF EN 12604 and NF EN 13241-1 specify "that vertical erasure closures must include a restraint, unsolicited in normal operation, preventing the fall of the deck in case of failure of one of the elements of the carrier system, subject to a path limited to 0.30 meter or 300 mm ".

La défaillance envisagée est par exemple la rupture ou le délestage d'un câble, d'une chaîne, d'une sangle etc... de suspension du rideau, ou encore la rupture d'un ressort de compensation ou de tout autre élément du mécanisme d'enroulement et/ou de suspension du rideau.The considered failure is for example the breaking or unloading of a cable, a chain, a strap etc ... of suspension of the curtain, or the rupture of a compensation spring or any other element of the mechanism for winding and / or suspending the curtain.

Ces problèmes sont connus de longue date, et les solutions mécaniques proposées sont très nombreuses et variées.These problems are known for a long time, and the mechanical solutions proposed are very numerous and varied.

Un grand nombre de dispositifs de sécurité reposent sur le principe du décalage angulaire existant entre un arbre menant et un arbre mené reliés par un ressort de rappel. Ce décalage tend à s'annuler en cas de diminution de la charge ou de la force motrice, ou au contraire à s'accroître en cas de surcharge. Une valeur non nominale de ce décalage angulaire déclenche l'arrêt du système, son blocage ou une alarme, que ce soit par des moyens exclusivement mécaniques, ou bien électriques ou électroniques.A large number of safety devices are based on the principle of the angular offset between a driving shaft and a driven shaft connected by a return spring. This shift tends to cancel in the event of a reduction in the load or the driving force, or on the contrary to increase in the case of overload. A non-nominal value of this angular offset triggers the shutdown of the system, its blocking or an alarm, whether by exclusively mechanical means, or electrical or electronic.

Le brevet américain US-2.878.865 par exemple, publié le 24 mars 1959 , et dont était titulaire la société US STEEL, met en oeuvre ce principe, et divulgue un dispositif destiné à arrêter la chute d'un volet roulant en cas, notamment, de rupture du ressort de compensation. L'élément de blocage est un cliquet associé à une roue à rochet.The US patent US-2,878,865 for example, published March 24, 1959 , and owned by the company US Steel, implements this principle, and discloses a device for stopping the fall of a roller shutter in the event, in particular, rupture of the compensation spring. The locking element is a pawl associated with a ratchet wheel.

Un autre dispositif de ce genre est décrit dans la demande de brevet allemand DE-2.532.604 publiée le 27 janvier 1977, au nom de P. SCHEMISH . La défaillance du système d'entraînement produit la contre-rotation de deux roues ayant pour effet de déplacer une gâche vers une butée fixe.Another device of this kind is described in the patent application German DE-2,532,604 published on January 27, 1977, in the name of P. SCHEMISH . The failure of the drive system produces the counter-rotation of two wheels which has the effect of moving a strike towards a fixed stop.

Pour satisfaire plus précisément aux spécifications des normes rappelées ci-dessus, différents systèmes de sécurité ont été développés récemment par différents fabricants, tout en s'appuyant sur des principes mécaniques bien connus dans le domaine technique de référence.To meet more precisely the specifications of the standards mentioned above, various security systems have been developed recently by different manufacturers, while relying on mechanical principles well known in the technical field of reference.

La demande de brevet FR-2.739.656 publiée le 11 Avril 1997, au nom de G. Tournier , décrit un dispositif d'actionnement d'une fermeture à enroulement présentant un système anti-chute à ressort. Le dispositif comporte un axe fixe sur lequel est monté au moins une bobine pourvue d'au moins un ressort de compensation à spirale. D'une manière connue en soi, l'extrémité intérieure du ressort est solidaire de l'axe fixe et son extrémité extérieure est solidaire de la bobine, celle-ci étant elle-même couplée à l'extrémité supérieure du tablier réalisant la fermeture à enroulement.The patent application FR-2.739.656 published April 11, 1997, in the name of G. Tournier , describes a device for actuating a roll-up closure having a spring-loaded fall arrest system. The device comprises a fixed axis on which is mounted at least one coil provided with at least one spiral compensation spring. In a manner known per se, the inner end of the spring is integral with the fixed axis and its outer end is integral with the coil, the latter being itself coupled to the upper end of the apron performing the closure. winding.

De façon également connue en soi, le dispositif de sécurité pour arrêter la chute du tablier en cas de rupture du ressort est tel qu'il permet de coupler la bobine à l'axe fixe après un déplacement angulaire de cette bobine par rapport au dispositif de verrouillage, ce déplacement étant contrôlé par un élément de rappel monté entre la bobine et ce dispositif de verrouillage. Dans ce but, un flasque d'enroulement solidaire de la partie supérieure du tablier est couplé à la bobine grâce à un doigt solidaire de la bobine, et traversant le flasque, pour venir déplacer un élément mobile entre une position d'attente, en fonctionnement normal, et une position de blocage avec une roue crantée solidaire de l'axe fixe, le doigt restant toujours engagé dans le dispositif mobile, en cas de défaillance du ressort.In a manner also known per se, the safety device for stopping the fall of the apron in case of breakage of the spring is such that it allows coupling the coil to the fixed axis after an angular displacement of this coil relative to the locking device, this movement being controlled by a return element mounted between the coil and this locking device. For this purpose, a winding flange secured to the upper part of the deck is coupled to the coil by a finger secured to the coil, and passing through the flange to move a movable member between a waiting position, in operation normal, and a locking position with a toothed wheel secured to the fixed axis, the finger remaining still engaged in the mobile device, in case of failure of the spring.

Une variante plus originale du même dispositif a fait l'objet, par le même déposant, de la demande de brevet européen EP-0.768.445 publiée le 16 avril 1997 . Dans cette variante, l'extrémité intérieure du ressort de compensation est non plus solidaire de l'axe fixe, mais solidaire de l'organe de verrouillage mobile en rotation par rapport à l'axe fixe.A more original variant of the same device was the subject, by the same applicant, of the patent application EP-0.768.445 published on April 16, 1997 . In this variant, the inner end of the compensation spring is no longer integral with the fixed axis, but integral with the locking member movable in rotation with respect to the fixed axis.

Si ces deux derniers dispositifs de sécurité, basés sur le principe de la détection du déplacement angulaire d'un élément intermédiaire, répondent effectivement aux exigences telles que celles indiquées dans la norme ci-dessus, ils ont comme inconvénient principal, une fois qu'ils ont bloqué la chute du tablier de fermeture, d'empêcher, si ce n'est de pouvoir remonter celui-ci, tout au moins de le descendre complètement pour fermer l'ouverture concernée. Quand la défaillance du système de fermeture a eu lieu en cours de manoeuvre, le tablier est en partie ouvert ou fermé ; pour terminer la manoeuvre, il faut alors démonter le système d'enroulement. Cette opération nécessite l'intervention de techniciens spécialisés qui ne sont pas forcément disponibles au moment de l'incident. Le responsable ou l'usager du local ne peut pas alors fermer l'accès à son local et empêcher toute intrusion non autorisée, ce qui peut être gênant quand il s'agit d'un commerce. De plus, les techniciens doivent intervenir alors qu'une grande partie du tablier tire sur le système d'enroulement et qu'une autre partie est encore enroulée, tandis qu'il n'y a plus de système de compensation et que le système de blocage de sécurité est inaccessible. En effet, dans les deux dispositifs ci-dessus, l'anti-chute est situé à l'intérieur du tablier enroulé ; pour accéder au système de sécurité afin de le débloquer, il faut démonter l'ensemble du système. C'est un travail long et très complexe, qui nécessite de grandes précautions, car des éléments du système, n'étant plus soutenus, risquent d'échapper aux techniciens.If these last two safety devices, based on the principle of the detection of the angular displacement of an intermediate element, actually meet the requirements such as those indicated in the above standard, they have the main disadvantage, once they have blocked the fall of the closing apron, to prevent, if not to be able to go up this one, at least to lower it completely to close the opening concerned. When the failure of the closing system has occurred during operation, the deck is partly open or closed; to complete the maneuver, it is then necessary to disassemble the winding system. This operation requires the intervention of specialized technicians who are not necessarily available at the time of the incident. The manager or the user of the local can not then close access to its premises and prevent unauthorized intrusion, which can be embarrassing when it comes to a business. In addition, the technicians must intervene while a large part of the deck pulls on the winding system and another part is still wound, while there is no more compensation system and the security blocking system is inaccessible. Indeed, in the two devices above, the anti-fall is located inside the rolled apron; To access the security system in order to unlock it, you have to dismantle the entire system. It is a long and very complex work, which requires great caution, because elements of the system, being no longer supported, may escape the technicians.

La demande de brevet français FR-2.790.033 au nom de la société demanderesse, publiée le 25 août 2000, décrit un dispositif antichute de fermeture à déplacement vertical tendant à pallier cet inconvénient tout en respectant les exigences des normes telles que celles indiquées précédemment en cas de rupture ou de défaillance de l'un quelconque des éléments du dispositif porteur (tel qu'un ressort de compensation, mais également la rupture ou le délestage d'un câble, d'une chaîne, d'une sangle, etc... suivant le type de suspension utilisé).The patent application French FR-2.790.033 on behalf of the plaintiff company, published August 25, 2000, describes a fall arrest device with vertical displacement to overcome this disadvantage while respecting the requirements of standards such as those indicated above in case of breakage or failure of one any of the elements of the carrier device (such as a compensation spring, but also the breaking or unloading of a cable, a chain, a strap, etc ... depending on the type of suspension used).

Le blocage de sécurité étant enclenché, et le tablier ou panneau étant arrêté en position à moitié fermé ou ouvert, il est possible:

  • d'une part de relever complètement celui-ci, sans avoir à intervenir sur le système d'enroulement proprement dit, et donc d'accéder et d'utiliser son local en attendant les techniciens de dépannage, et
  • d'autre part de rabaisser manuellement le tablier pour mettre son local en sécurité si les techniciens ne peuvent intervenir dans un délai raisonnable afin d'éviter à l'usager de devoir exercer une surveillance en les attendant.
With the safety lock engaged and the apron or panel stopped in the half-closed or open position, it is possible:
  • on the one hand to completely recover it, without having to intervene on the winding system itself, and therefore to access and use its premises while waiting for the repair technicians, and
  • on the other hand to manually lower the deck to secure his premises if technicians can not intervene within a reasonable time to prevent the user from having to monitor while waiting for them.

Ce dispositif antichute de fermeture à déplacement vertical comporte d'une manière connue, tant dans les dispositifs de fermeture à panneau vertical que dans les systèmes d'entraînement de type « treuil », un arbre fixe, au moins un flasque tournant par rapport à cet arbre et dont la rotation assure le déplacement vertical de la fermeture, et un moyen de compensation du poids de la fermeture par action sur ce flasque.This vertical displacement locking device comprises in a known manner, both in the vertical panel closing devices and in the "winch" type drive systems, a fixed shaft, at least one flange rotating relative to this shaft and whose rotation ensures the vertical movement of the closure, and a means of compensation of the weight of the closure by action on the flange.

Dans la réalisation décrite, ce moyen de compensation est constitué par un ressort de type « spiral » dont l'extrémité intérieure est fixée sur l'axe fixe et l'extrémité extérieure est fixée à une cloche, couvrant cette extrémité extérieure, et dont une paroi latérale est constituée par le flasque.In the embodiment described, this compensation means is constituted by a "spiral" type spring whose inner end is fixed on the fixed axis and the outer end is fixed to a bell, covering this outer end, and one of which side wall is constituted by the flange.

Le dispositif anti-chute comprend aussi une roue crantée solidaire de l'arbre et un verrou basculant entraîné en rotation par le flasque. Le verrou est apte à coopérer avec au moins un cran de la roue crantée et à bloquer la rotation du flasque pour éviter la descente en chute libre du panneau. De manière remarquable, le verrou basculant comporte de plus un doigt dont au moins un bord latéral de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de la roue crantée, lequel doigt est monté mobile latéralement par rapport à celle-ci suivant une course lui permettant au moins d'échapper au cran.The fall arrest device also comprises a toothed wheel secured to the shaft and a rocking lock rotated by the flange. The lock is adapted to cooperate with at least one notch of the toothed wheel and to block the rotation of the flange to prevent the free fall of the panel. Remarkably, the rocker lock further includes a finger, at least one side edge of the end is beveled along a plane secant with the casing cylinder of the toothed wheel, which finger is laterally movable relative thereto a race allowing him at least to escape the guts.

Ainsi, bien que le tablier de fermeture soit bloqué dans sa descente par le verrou basculant, il est possible de le remonter puisque, dans ce sens, le verrou s'effacera cran après cran et, dès que l'on relâchera le poids du tablier, celui-ci ne pourra pas descendre au-delà du cran dans lequel se bloquera immédiatement le doigt du verrou, son biseau ne permettant son effacement que dans le sens de la remontée.Thus, although the closing apron is blocked in its descent by the rocking latch, it is possible to go up since, in this sense, the lock will fade notch after cran and, as soon as we release the weight of the apron , it will not be able to go down beyond the notch in which will immediately block the finger of the lock, its bevel not allowing its deletion only in the direction of the ascent.

De plus, la roue crantée de ce dispositif comprend au moins deux couronnes. La première comporte les crans de blocage en rotation de la fermeture. La deuxième, placée latéralement par rapport à la première dans le sens du déplacement latéral du doigt, comporte au moins une came dont la face contre laquelle s'appuie le bord latéral en biseau de l'extrémité du doigt est apte à faire échapper celui-ci complètement de la roue crantée dans le sens de la remontée de la fermeture. L'autre face est apte à prendre en appui l'extrémité de ce doigt. Elle est profilée suivant une pente ramenant cette extrémité en face d'un cran de blocage dans le sens de la descente de la fermeture: la distance entre deux positions de cames successives est au moins égale à celle séparant deux crans.In addition, the toothed wheel of this device comprises at least two rings. The first comprises locking notches in rotation of the closure. The second, placed laterally with respect to the first in the direction of the lateral displacement of the finger, comprises at least one cam whose face against which the beveled lateral edge of the end of the finger rests is able to evade this. this completely from the notched wheel in the direction of the rise of the closure. The other face is able to bear the end of this finger. It is profiled along a slope bringing this end in front of a locking catch in the direction of the descent of the closure: the distance between two positions of successive cams is at least equal to that separating two notches.

Ainsi, grâce aux cames de cette deuxième couronne et au biseau du doigt du verrou de blocage, il est possible d'une part de remonter complètement jusqu'en partie haute, comme évoqué précédemment, l'ensemble du tablier de fermeture par effacement du doigt du verrou grâce à son bord latéral biseauté, et d'autre part de redescendre le tablier pas à pas d'une distance correspondant au plus à la distance entre deux cames, le doigt du verrou se relogeant à chaque fois dans un cran de la roue crantée. Il suffit que la distance entre deux positions de cames successives soit inférieure à 300 mm pour respecter la norme indiquée précédemment.Thus, thanks to the cams of this second ring and the bevel of the locking bolt finger, it is possible on the one hand to completely go up to the upper part, as mentioned above, the entire closing plate by erasing the finger the lock with its beveled side edge, and secondly to lower the deck step by step to a distance corresponding to the distance between two cams, the lock finger relocating each time in a notch of the wheel notched. It is sufficient that the distance between two successive cam positions is less than 300 mm to meet the standard indicated above.

Ce dispositif antichute de fermeture à déplacement vertical répond au problème posé et apporte de plus des solutions techniques particulières, qui permettent par exemple:

  • de disposer l'ensemble du dispositif de sécurité à l'extérieur du système d'enroulement et de compensation du tablier de fermeture, ce qui permet une intervention plus facile,
  • de remonter ou de descendre complètement le tablier de fermeture et de le sécuriser dans cette position en supprimant alors tout effort de rotation sur le système d'enroulement, ce qui simplifie l'intervention des techniciens de dépannage,
  • dans le cas d'un dispositif à compensation par ressort de type « spiral », d'éviter que celui-ci, quand il se casse, vienne bloquer le système de sécurité, ce qui peut se produire quand celui-ci est directement lié au ressort de compensation ou à la boite qui enferme celui-ci. En effet, en cas de rupture, le ressort à lame se détend brusquement et s'ouvre au maximum en se plaquant contre la paroi extérieure de la boîte qui le renferme, en risquant d'empêcher tout mouvement de rotation relatif de celle-ci par rapport à tout autre organe, tel que justement de sécurité.
This fall arrest device vertical displacement responds to the problem and provides more specific technical solutions, which allow for example:
  • to arrange the entire safety device outside the winding and compensation system of the closing apron, which allows easier intervention,
  • to raise or lower the closing apron completely and to secure it in this position while eliminating any rotational force on the winding system, which simplifies the intervention of the repair technicians,
  • in the case of a "spiral" type spring-compensated device, to prevent the latter, when it breaks, from blocking the security system, which may occur when it is directly linked to compensation spring or the box that encloses it. In fact, in the event of breakage, the leaf spring suddenly relaxes and opens as far as possible against the outer wall of the box which encloses it, risking preventing any relative rotational movement of the latter by to any other body, such as security.

Ce dernier risque semble être l'inconvénient de certains dispositifs antichute très simplifiés à ressort spiral, où est seulement mis en oeuvre le déplacement radial ou tangentiel de l'extrémité libre du ressort au moment de la rupture pour contrôler directement une pièce mécanique assurant le blocage.This last risk seems to be the disadvantage of some very simplified fall arrest devices with spiral spring, where is only implemented the radial or tangential displacement of the free end of the spring at the time of rupture to directly control a mechanical part ensuring the blocking .

Des exemples de ces systèmes antichute simplifiés sont décrits notamment dans la demande de brevet français FR-2.756.319 au nom de Michel JAVEY, publiée le 29 mai 1998 , ou dans la demande de brevet français FR-2.793.837 au nom de la société FRANCE FERMETURES, publiée le 24 novembre 2000 .Examples of these simplified fall arrest systems are described in particular in the patent application. French FR-2.756.319 in the name of Michel JAVEY, published on May 29, 1998 , or in the patent application French FR-2.793.837 on behalf of FRANCE FERMETURES, published on 24 November 2000 .

Selon une démarche inverse de celle tendant à une simplification extrême des mécanismes au détriment de la fiabilité, la société demanderesse a déposé le 30 septembre 2004 la demande de brevet FR-04.10372 pour une nouvelle boîte à ressort satisfaisant à la fois aux normes en vigueur et aux besoins des utilisateurs, et visant à améliorer le fonctionnement des dispositifs antichute de fermeture à déplacement vertical mécaniquement les plus élaborés, connus de l'état de la technique. Cette boîte à ressort était remarquable en ce que les moyens de fixation de l'extrémité extérieure du ressort de compensation étaient opérants pendant et après la rupture accidentelle de celui-ci, à la différence des dispositifs décrits dans la demande de brevet français FR-2.756.319 par exemple.In an approach that is the opposite of that of an extreme simplification of mechanisms to the detriment of reliability, the plaintiff company filed the September 30, 2004 the patent application FR-04.10372 for a new spring box satisfying both the standards in force and the needs of users, and aimed at improving the operation of mechanically most advanced vertical displacement locking devices known from the state of the art. This spring box was remarkable in that the fixing means of the outer end of the compensation spring were operative during and after the accidental breaking thereof, unlike the devices described in the patent application. French FR-2.756.319 for example.

DESCRIPTION GÉNÉRALE DE L'INVENTIONGENERAL DESCRIPTION OF THE INVENTION

La présente invention vise à poursuivre la démarche d'amélioration de la boîte à ressort fabriquée par la demanderesse en simplifiant les éléments mécaniques dont ne dépend pas la fiabilité, et en rendant modulaires, et éventuellement remplaçables, les éléments de sécurité.The present invention aims to continue the improvement process of the spring box manufactured by the applicant by simplifying the mechanical elements which does not depend on reliability, and making modular, and possibly replaceable, security elements.

Pour ce faire, la plus grande partie du modèle précédent de boîte à ressort est conservée.To do this, most of the previous model of spring box is retained.

C'est-à-dire que l'invention a pour objet une boîte à ressort de dispositif antichute de rideau roulant à déplacement vertical, cette boîte étant du type de celles de la forme générale d'un cylindre présentant au moins une ouverture latérale et comportant:

  • une bobine formée de l'assemblage de deux flasques et dont la rotation autour d'un arbre fixe assure le déplacement vertical du rideau,
  • un ressort spiral de compensation du poids du rideau par action sur les flasques, l'extrémité intérieure du ressort de compensation étant destinée à être fixée à l'arbre fixe,
  • une roue crantée destinée à être fixée sur cet arbre,
  • un verrou basculant apte à coopérer avec au moins un cran de la roue crantée et à bloquer la rotation de la bobine pour éviter la descente du rideau en cas de rupture du ressort de compensation.
That is to say, the subject of the invention is a spring box of rolling stock rolling shutter device vertical, this box being of the type of those of the general shape of a cylinder having at least one lateral opening and comprising:
  • a coil formed of the assembly of two flanges and whose rotation around a fixed shaft ensures the vertical movement of the curtain,
  • a spiral spring for compensating the weight of the curtain by acting on the flanges, the inner end of the compensation spring being intended to be fixed to the fixed shaft,
  • a notched wheel intended to be fixed on this shaft,
  • a tilting latch adapted to cooperate with at least one notch of the toothed wheel and to block the rotation of the coil to prevent the curtain from falling down in the event of rupture of the compensation spring.

Le verrou basculant de ce modèle comprend un doigt articulé par sa base sur l'un des flasques selon une direction axiale et une direction radiale par rapport à l'arbre fixe. Le verrou comprend aussi un ressort de rappel agissant sur le doigt du verrou, de telle sorte que ce doigt, dont au moins un bord latéral de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de la roue crantée, est susceptible d'échapper au cran au moins en suivant une course selon cette direction axiale.The rocking latch of this model comprises a finger articulated by its base on one of the flanges in an axial direction and a radial direction relative to the fixed shaft. The lock also comprises a return spring acting on the finger of the lock, so that this finger, at least one side edge of the end is beveled along a plane secant with the cylinder wrapped with the toothed wheel, is capable of escape the notch at least following a race in this axial direction.

Le verrou à deux degrés de liberté de rotation de l'ancien modèle présente de nombreux avantages: il est aussi conservé.The lock with two degrees of freedom of rotation of the old model has many advantages: it is also preserved.

En revanche, les flasques intermédiaires contre-rotatifs aux flasques de la bobine sont supprimés dans le nouveau modèle, et l'extrémité extérieure du ressort de compensation n'y est plus fixée.On the other hand, the counter-rotating intermediate flanges on the flanges of the spool are removed in the new model, and the outer end of the compensation spring is no longer fixed thereto.

Au contraire, la boîte à ressort de dispositif antichute de rideau roulant à déplacement vertical selon l'invention est remarquable en ce que l'extrémité extérieure du ressort de compensation est rendue solidaire par des moyens de fixation d'une barrette montée mobile en translation dans deux boutonnières parallèles agencées chacune au voisinage de la périphérie de chacun des flasques de la bobine.On the other hand, the vertical displacement roller shutter device spring box according to the invention is remarkable in that the outer end of the compensation spring is made integral by means of fixing a bar mounted to move in translation in two parallel buttonholes each arranged adjacent the periphery of each of the flanges of the coil.

Une extrémité de cette barrette coopère avec l'extrémité du doigt du verrou et maintient ce doigt à distance du cran de la roue crantée dans l'état normal du ressort de compensation. L'extrémité de la barrette est dissociée de l'extrémité du doigt du verrou après la rupture du ressort de compensation, libérant de la sorte l'extrémité de ce doigt. Celui-ci est alors entraîné suivant une direction radiale par le ressort de rappel vers le cran de la roue crantée.One end of this bar cooperates with the finger end of the lock and keeps this finger away from the notch of the notched wheel in the normal state of the compensation spring. The end of the bar is disassociated from the end of the lock finger after the breaking of the compensation spring, releasing the end of this finger. This is then driven in a radial direction by the return spring towards the notch of the toothed wheel.

De préférence, les moyens de fixation du ressort de compensation sur la barrette comprennent une agrafe.Preferably, the fixing means of the compensation spring on the bar comprise a clip.

Cette barrette est avantageusement constituée d'une tige cylindrique dont les deux extrémités sont munies de circlips coopérant avec les bords des boutonnières agencées dans les flasques.This bar advantageously consists of a cylindrical rod whose two ends are provided with circlips cooperating with the edges of the buttonholes arranged in the flanges.

Dans une variante de réalisation de l'invention, l'extrémité de la barrette coopérant avec le doigt du verrou est constituée d'un étrier mobile.In an alternative embodiment of the invention, the end of the bar cooperating with the finger of the lock is constituted by a movable stirrup.

On tire aussi bénéfice du fait que l'extrémité de la barrette coopérant avec le doigt est rappelée en direction opposée à ce doigt par un élément de rappel.It also benefits from the fact that the end of the bar cooperating with the finger is biased in the opposite direction to this finger by a return member.

Dans un mode de réalisation de l'invention, la base du doigt du verrou est articulée sur un téton axial solidaire de l'un des flasques de la bobine.In one embodiment of the invention, the base of the latch finger is articulated on an axial pin integral with one of the flanges of the coil.

Dans un autre mode de réalisation, la base du doigt est articulée sur une tringle cylindrique agencée axialement dans deux alésages de ces flasques.In another embodiment, the base of the finger is articulated on a cylindrical rod arranged axially in two bores of these flanges.

Fort avantageusement, dans un mode de réalisation préféré de l'invention, le verrou est un ensemble mécanique comprenant:

  • un flan présentant une patte de fixation et une partie en forme de couronne destinée à être engagée sur l'axe fixe,
  • une tringle cylindrique destinée à traverser les flasques de la bobine parallèlement à l'axe fixe, et dont une extrémité est solidaire de ce flan,
  • le ressort de rappel dont une extrémité est fixée à la patte du flan, et dont l'autre extrémité porte sur la base du doigt,
  • le doigt dont la base est articulée autour de la tringle cylindrique.
Advantageously, in a preferred embodiment of the invention, the lock is a mechanical assembly comprising:
  • a blank having a fixing lug and a crown-shaped portion intended to be engaged on the fixed axis,
  • a cylindrical rod intended to pass through the flanges of the coil parallel to the fixed axis, and one end of which is integral with this blank,
  • the return spring whose one end is fixed to the flap of the blank, and the other end of which bears on the base of the finger,
  • the finger whose base is articulated around the cylindrical rod.

Selon ce mode de réalisation préféré, avant montage, le verrou comprend de plus un élément de maintien destiné à être supprimé après montage, de préférence un anneau en plastique maintenant comprimé le ressort de rappel.According to this preferred embodiment, before assembly, the lock further comprises a holding member to be removed after mounting, preferably a plastic ring now compressed the return spring.

Fort avantageusement, la base du doigt présente une section droite en forme de U, au moins une lumière oblongue d'une largeur sensiblement égale mais supérieure au diamètre de la tringle ou du téton étant agencée dans au moins une aile dudit U de manière à coopérer avec cette tringle ou ce téton.Advantageously, the base of the finger has a U-shaped cross section, at least one oblong slot of a width substantially equal to but greater than the diameter of the rod or the pin being arranged in at least one wing of said U so as to cooperate with this rod or this nipple.

L'invention concerne aussi un mécanisme de verrouillage particulièrement adapté à la boîte à ressort décrite précédemment.The invention also relates to a locking mechanism particularly adapted to the spring box described above.

Ce mécanisme, pré-assemblé séparément par un technicien qualifié, est remarquable en ce qu'il comprend:

  • un flan présentant une partie en forme de couronne destinée à être engagée axialement sur l'arbre fixe, et une patte de fixation s'étendant perpendiculairement au plan de cette couronne,
  • une tringle cylindrique solidaire du flan par une extrémité et s'étendant perpendiculairement au plan de la couronne, cette tringle étant destinée à traverser les flasques de la bobine parallèlement à l'arbre fixe,
  • le doigt articulé par sa base autour de la tringle selon une direction perpendiculaire et une direction parallèle au plan de la couronne, dont au moins un bord latéral de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de cette couronne,
  • le ressort de rappel dont une extrémité est fixée à la patte du flan, et dont l'autre extrémité porte sur la base du doigt.
This mechanism, pre-assembled separately by a qualified technician, is remarkable in that it includes:
  • a blank having a ring-shaped portion intended to be engaged axially on the fixed shaft, and a fastening tab extending perpendicular to the plane of this ring,
  • a cylindrical rod secured to the blank at one end and extending perpendicularly to the plane of the ring, this rod being intended to pass through the flanges of the coil parallel to the fixed shaft,
  • the finger articulated by its base around the bead wire in a perpendicular direction and a direction parallel to the plane of the crown, at least one side edge of the end of which is beveled along a plane intersecting with the cylinder which surrounds the crown,
  • the return spring whose one end is fixed to the flap of the blank, and whose other end is on the base of the finger.

Avant montage pour constituer la boîte à ressort selon l'invention, ce mécanisme de verrouillage comprend de plus avantageusement un élément de maintien, destiné à être supprimé après montage, de préférence un anneau en plastique agencé autour d'au moins une partie de la patte et d'au moins une partie de l'extrémité du doigt, maintenant comprimé le ressort de rappel.Prior to assembly to form the spring box according to the invention, this locking mechanism more advantageously comprises a holding element, intended to be removed after mounting, preferably a plastic ring arranged around at least a portion of the leg and at least a portion of the end of the finger, now compressed the return spring.

De préférence, la base du doigt présente une section droite en forme de U, au moins une lumière oblongue d'une largeur sensiblement égale mais supérieure au diamètre de la tringle d'articulation étant agencée dans au moins une aile du U de manière à coopérer avec cette tringle.Preferably, the base of the finger has a U-shaped cross section, at least one oblong slot of a width substantially equal to but greater than the diameter of the hinge rod being arranged in at least one wing of the U so as to cooperate with this rod.

Ces quelques spécifications essentielles rendent évidents pour l'homme de métier les avantages supplémentaires apportés par cette boîte à ressort par rapport au modèle précédent de la demanderesse.These few essential specifications make it obvious to the skilled person the additional benefits of this spring box over the previous model of the Applicant.

Les spécifications détaillées de l'invention sont données dans la description qui suit en liaison avec les dessins ci-annexés. Il est à noter que ces dessins n'ont d'autre but que d'illustrer le texte de la description et qu'ils ne constituent en aucune sorte une limitation de la portée de l'invention.The detailed specifications of the invention are given in the following description in conjunction with the accompanying drawings. It should be noted that these drawings have no other purpose than to illustrate the text of the description and that they do not constitute in any way a limitation of the scope of the invention.

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Les Figures 1 et 2 sont des vues en perspective d'une boîte à ressort d'un dispositif antichute de rideau roulant à déplacement vertical selon l'invention, montrant respectivement le mécanisme de verrouillage monté, et avant montage. Figures 1 and 2 are perspective views of a spring box of a vertical displacement rolling shutter fall arrest device according to the invention, respectively showing the locking mechanism mounted, and before mounting.

La Figure 3 montre une coupe axiale de la boîte à ressort selon l'invention. Figure 3 shows an axial section of the spring box according to the invention.

Les Figure 4a et 4b sont respectivement des coupes détaillées de l'articulation du doigt du verrou et de la fixation du mécanisme de verrouillage selon l'invention, montrées par les loupes A et B de la Figure 3. 4a and 4b are respectively detailed sections of the finger joint of the lock and the attachment of the locking mechanism according to the invention, shown by magnifying glasses A and B of FIG . 3 .

Les Figures 5a, 5b et 5c sont des vues en perspectives partielles, respectivement, de l'extrémité du ressort de compensation et du doigt du verrou en fonctionnement normal, de l'extrémité du ressort de compensation et du doigt du verrou peu après la rupture du ressort de compensation, et du doigt engagé dans un cran de la roue crantée quand la bobine est bloquée. Figures 5a, 5b and 5c are partial perspective views, respectively, of the end of the spring of compensation and the latch finger in normal operation, the end of the compensation spring and the latch finger shortly after the breaking of the compensation spring, and the finger engaged in a notch of the toothed wheel when the coil is blocked.

DESCRIPTION DU MODE DE RÉALISATION PRÉFÉRÉ DE L'INVENTIONDESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION

Comme le montrent les Figures 1 et 2, la boîte à ressort 1 de dispositif antichute pour fermeture à déplacement vertical dont il s'agit est montée sur un arbre fixe 2. Elle comporte deux flasques 3 assemblés à leurs périphéries par des entretoises 31, et formant une bobine tournant par rapport à cet arbre 2 et dont la rotation assure le déplacement vertical d'un rideau (non représenté) solidarisée à la boîte 1.As shown in FIGS. 1 and 2 , the spring box 1 of the fall arrest device for vertical displacement closure in question is mounted on a fixed shaft 2. It comprises two flanges 3 assembled at their peripheries by spacers 31, and forming a rotating spool with respect to this shaft 2 and whose rotation ensures the vertical displacement of a curtain (not shown) secured to the box 1.

Un ressort de compensation 4, de type « spiral », enroulé sur lui-même, dont l'extrémité intérieure 5 est fixée à l'arbre fixe 2, exerce au niveau de son extrémité extérieure 6 un couple antagoniste à celui exercé par le poids du rideau sur la bobine 1.A compensating spring 4, of the "spiral" type, wound on itself, whose inner end 5 is fixed to the fixed shaft 2, exerts at its outer end 6 a counter-torque to that exerted by the weight curtain on the spool 1.

Le dispositif antichute comprend également une roue crantée 7 solidaire de l'arbre 2, et un verrou basculant 8 entraîné en rotation par les flasques 3. Ce verrou 8 est apte à coopérer avec au moins un cran 9 de la roue crantée 7 et à bloquer la rotation des flasques 3 pour éviter la descente du rideau.The fall arrest device also comprises a notched wheel 7 integral with the shaft 2, and a rocker lock 8 rotated by the flanges 3. This latch 8 is adapted to cooperate with at least one notch 9 of the toothed wheel 7 and to lock the rotation of the flanges 3 to avoid the descent of the curtain.

Le verrou basculant 8 comporte un doigt 10 dont au moins un bord latéral 11 de l'extrémité est biseauté suivant sur un plan sécant avec le cylindre enveloppe de la roue crantée 7, qui est de même axe que l'arbre fixe 2.The tilting bolt 8 comprises a finger 10 whose at least one lateral edge 11 of the end is bevelled along a plane intersecting with the casing cylinder of the toothed wheel 7, which is of the same axis as the fixed shaft 2.

Le doigt 10 est monté mobile latéralement par rapport à la roue crantée 7 suivant une course lui permettant au moins d'échapper au cran 9, le plan sécant étant incliné bien entendu dans le sens du déplacement latéral du verrou 8.The finger 10 is mounted laterally movable with respect to the toothed wheel 7 in a race allowing it to at least escape the notch 9, the secant plane being inclined of course in the direction of the lateral displacement of the lock 8.

Un tel déplacement du doigt 10 est permis par l'articulation spécifique que comporte le verrou 8 autour d'une tringle cylindrique 12 traversant les flasques 3, laquelle articulation, montrée en coupe sur la Figure 4a, comprend un orifice 13 venant buter contre un épaulement 14 de cette tringle 12 et une lumière oblongue 15 située du même côté que le bord latéral 11 biseauté du doigt 10 de blocage, lumière oblongue qui est d'une largeur sensiblement égale mais supérieure au diamètre de la tringle 12 de sorte à rendre possible le déplacement latéral du doigt 10.Such a displacement of the finger 10 is allowed by the specific articulation that the lock 8 comprises around a cylindrical rod 12 passing through the flanges 3, which articulation, shown in section in Figure 4a , comprises an orifice 13 abutting against a shoulder 14 of this rod 12 and an oblong slot 15 located on the same side as the side edge 11 beveled finger 10, oblong light which is of a width substantially equal to but greater than the diameter of the rod 12 so as to make possible the lateral displacement of the finger 10.

Ce déplacement doit permettre au verrou 8 d'échapper au moins au cran 9 dans lequel il serait bloqué, comme suite par exemple à la rupture du ressort de compensation 4, par pivotement du verrou 8 autour de la tringle 12 dans un plan axial.This movement must allow the latch 8 to escape at least the notch 9 in which it would be blocked, for example following the break of the compensation spring 4, by pivoting the latch 8 around the rod 12 in an axial plane.

La base du doigt 10 présente une section droite en forme de "U" dont les ailes portent l'orifice 13 et la lumière oblongue d'articulation 15, l'aile correspondant à la lumière oblongue 15 étant courbée pour faciliter son pivotement.The base of the finger 10 has a U-shaped cross section whose wings carry the orifice 13 and the elongated hinge slot 15, the wing corresponding to the oblong slot 15 being bent to facilitate its pivoting.

En effet, le doigt 10 est monté basculant autour de la tringle 12 entre:

  • une position d'attente représentée sur la Figure 1 (ou sur la Figure 5a), par appui de son extrémité contre l'extrémité d'une barrette 16 (ici une tige cylindrique) solidaire de l'extrémité extérieure 6 du ressort de compensation 4, laquelle tige 16 est en butée dans deux boutonnières 17 rectilignes agencées au voisinage de la périphérie des flasques 3;
  • et une position de blocage, telle que représentée sur la Figure 5c, par appui de son extrémité dans un des crans 9 de la roue crantée 7, le basculement du doigt 10 étant assuré par un ressort de rappel 18 quand l'extrémité de la tige 16 s'est effacée.
Indeed, the finger 10 is mounted tilting around the rod 12 between:
  • a waiting position shown in Figure 1 (or in Figure 5a ), by pressing its end against the end of a bar 16 (here a cylindrical rod) integral with the outer end 6 of the compensation spring 4 , which rod 16 abuts in two rectilinear buttonholes 17 arranged in the vicinity of the periphery of the flanges 3;
  • and a locking position, as shown in Figure 5c , by pressing its end into one of the notches 9 of the toothed wheel 7, the tilting of the finger 10 being provided by a return spring 18 when the end of the rod 16 erased.

L'effacement de l'extrémité de la tige 16 sous le doigt 10, comme le montre la Figure 5b, se produit lorsque le ressort de compensation 4 se rompt, et que la tige 16 subit une translation dans les deux boutonnières 17 des flasques 3 en étant maintenue axialement par deux circlips.The deletion of the end of the rod 16 under the finger 10, as shown in Figure 5b , occurs when the compensation spring 4 breaks, and the rod 16 is translated into the two buttonholes 17 of the flanges 3 being held axially by two circlips.

Quand le ressort de compensation 4, dont l'extrémité extérieure 6 recourbée est fixée par une agrafe 19 sur la tige 16, assure son rôle d'équilibre du poids du rideau, le verrou 8 est toujours empêché de basculer grâce à la butée formée par l'extrémité de la tige 16 rappelée en direction de la tringle 12, et de l'arbre fixe 2, par la force exercée par le ressort de compensation 4.When the compensation spring 4, whose curved outer end 6 is fixed by a staple 19 on the rod 16, performs its role of balancing the weight of the curtain, the latch 8 is always prevented from tilting thanks to the stop formed by the end of the rod 16 biased towards the rod 12 and the fixed shaft 2, by the force exerted by the compensation spring 4.

Quand le ressort de compensation 4 se rompt, le plus souvent alors qu'il est tendu, c'est-à-dire enroulé, il a tendance à se dérouler, c'est-à-dire que son extrémité extérieure 6 a tendance à s'éloigner de l'arbre fixe 2.When the compensation spring 4 breaks, most often when it is stretched, that is to say wound, it tends to unfold, that is to say that its outer end 6 tends to move away from the fixed shaft 2.

La direction générale des boutonnières 17 des flasques étant celles de cordes passant entre l'axe support de rotation du doigt 10, c'est-à-dire la tringle 12, et l'axe de rotation des flasques 3, c'est-à-dire l'arbre 2, toute expansion radiale du ressort de compensation 4, conduisant à un déplacement radial de son extrémité extérieure 6, se traduit par un éloignement de l'extrémité de la tige 16 de l'extrémité du doigt 10.The general direction of the buttonholes 17 of the flanges being those of ropes passing between the support axis of rotation of the finger 10, that is to say the bead wire 12, and the axis of rotation of the flanges 3, that is to say say the shaft 2, any radial expansion of the compensation spring 4, leading to a radial displacement of its outer end 6, results in a distance from the end of the rod 16 of the end of the finger 10.

L'extrémité du doigt 10 du verrou 8 est ainsi libérée, et celui-ci vient se bloquer dans un cran 9 de la roue crantée 7, empêchant la rotation des flasques 3, et par conséquent la chute du rideau.The end of the finger 10 of the lock 8 is thus released, and it is locked in a notch 9 of the toothed wheel 7, preventing the rotation of the flanges 3, and therefore the fall of the curtain.

En fonctionnement normal, la boîte à ressort 1 est donc mobile en rotation autour de l'arbre support fixe 2, grâce à des paliers, et est maintenue en position axiale sur cet arbre 2 grâce à une platine de guidage comprenant la roue crantée 7 autour de laquelle elle peut tourner librement, comme le montrent bien la Figure 3 et plus particulièrement la Figure 4b. La roue crantée 7 est fixée sur ledit arbre 1 par un boulon traversant 20.In normal operation, the spring box 1 is thus rotatable about the fixed support shaft 2, thanks to bearings, and is held in axial position on the shaft 2 by means of a guide plate comprising the toothed wheel 7 around it from which it can rotate freely, as shown in Figure 3 and more particularly Figure 4b. The toothed wheel 7 is fixed on said shaft 1 by a through bolt 20.

Le basculement du verrou 8 autour de son axe de support 12 est limité par tout moyen, tel qu'une butée portée par la platine de guidage ou le flasque 3 en regard, ou un épaulement circulaire formant une troisième couronne 21 à cames 22 disposée latéralement afin que l'extrémité du doigt 10, quand celui-ci est entièrement dégagé de la roue crantée 7 dans le sens de la montée du tablier de fermeture, revienne ensuite, quand on redescend le tablier de fermeture, prendre appui sur une face d'une came 22. Les cames 22 ayant la même hauteur que les dents de la roue crantée 7, le doigt 10 du verrou 8 est ramené ainsi, dans le sens de la descente du tablier de fermeture, vers un cran 9 de la roue crantée 7 où il se bloque en immobilisant le rideau, après avoir permis cependant de dérouler le tablier de la fermeture d'au moins un cran supplémentaire par rapport à la position de blocage précédente.The tilting of the lock 8 around its support axis 12 is limited by any means, such as a stop carried by the guide plate or the flange 3 opposite, or a circular shoulder forming a third ring 21 with cams 22 arranged laterally. so that the tip of the finger 10, when it is completely clear of the toothed wheel 7 in the direction of the rise of the closing apron, then come back, when we come down the closing apron, bear on a face of a cam 22. The cams 22 having the same height that the teeth of the toothed wheel 7, the finger 10 of the lock 8 is brought thus, in the direction of the descent of the closing apron, to a notch 9 of the toothed wheel 7 where it locks immobilizing the curtain, after however, have allowed to unwind the apron of the closure at least one additional notch compared to the previous locking position.

Les Figures 1 et 2 montrent bien que l'extrémité extérieure 6 du ressort de compensation 4 de la boîte à ressort selon l'invention est fixée sur la barrette ou tige 16 mobile en translation dans les flasques. Figures 1 and 2 show that the outer end 6 of the compensation spring 4 of the spring box according to the invention is fixed on the bar or rod 16 movable in translation in the flanges.

Cette tige 16 est une pièce intermédiaire qui joue le même rôle que les flasques internes du modèle de boîte à ressort précédent. L'extrémité extérieure 6 du ressort de compensation 4 est rendue solidaire de cette tige 16 par les pattes d'une agrafe 19, de la même manière que l'extrémité extérieure recourbée du ressort de compensation était fixée sur la périphérie des flasques internes.This rod 16 is an intermediate piece that plays the same role as the internal flanges of the previous spring box model. The outer end 6 of the compensation spring 4 is made integral with this rod 16 by the tabs of a clip 19, in the same manner that the curved outer end of the compensation spring was fixed on the periphery of the inner flanges.

L'extrémité de la tige 16 a la même fonction de gâchette que le doigt du flasque interne antérieur.The end of the rod 16 has the same trigger function as the finger of the anterior internal flange.

De manière identique au fonctionnement du modèle précédent, l'énergie produite par la détente du ressort de compensation 4, lors de sa rupture, est avantageusement utilisée pour déplacer l'extrémité de la tige 16. Mais l'inertie de la tige 16 étant beaucoup plus faible que celle des flasques internes, le temps de réponse du parachute est amélioré.Similarly to the operation of the previous model, the energy produced by the expansion of the compensation spring 4, when it breaks, is advantageously used to move the end of the rod 16. But the inertia of the rod 16 is much lower than that of the internal flanges, the response time of the parachute is improved.

Le remplacement des flasques internes par une simple tige 16 procure également les avantages d'un gain de matière en fabrication, et d'une simplification au montage.The replacement of the internal flanges by a simple rod 16 also provides the advantages of a material saving in manufacture, and a simplification to assembly.

La disparition des flasques internes au bénéfice de la tige 16 permet aussi de réaliser le verrou 8 sous la forme d'un mécanisme de verrouillage pré-assemblé séparément en atelier.The disappearance of the internal flanges to the benefit of the rod 16 also allows the latch 8 in the form of a locking mechanism pre-assembled separately in the workshop.

Comme le montre bien la Figure 2, ce mécanisme 8 comprend:

  • un flan 23 présentant une partie en forme de couronne 24 destinée à être engagée axialement sur l'arbre fixe 2, et une patte de fixation 26 s'étendant perpendiculairement au plan de cette couronne ;
  • la tringle cylindrique 12 solidaire du flan 23 par une extrémité et s'étendant perpendiculairement au plan de la couronne 24, cette tringle 12 étant destinée à être insérée dans des alésages 25 pratiqués au voisinage de la périphérie des flasques 3 de la bobine parallèlement à l'arbre fixe 2, et étant munie d'un circlip 28 du coté de la couronne 24;
  • le doigt 10 articulé par sa base autour de la tringle 12 selon une direction perpendiculaire et une direction parallèle au plan de la couronne 24, dont au moins un bord latéral 11 de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de cette couronne 24,
  • le ressort de rappel 18 dont une extrémité est fixée à la patte 26 du flan 23, et dont l'autre extrémité porte sur la base du doigt 10.
As shown in Figure 2 , this mechanism 8 comprises:
  • a blank 23 having a ring-shaped portion 24 intended to be engaged axially on the fixed shaft 2, and a fastening tab 26 extending perpendicularly to the plane of this ring;
  • the cylindrical rod 12 integral with the blank 23 at one end and extending perpendicularly to the plane of the ring 24, this rod 12 being intended to be inserted into bores 25 formed in the vicinity of the periphery of the flanges 3 of the coil parallel to the fixed shaft 2, and being provided with a circlip 28 on the side of the ring 24;
  • the finger articulated by its base around the bead wire 12 in a perpendicular direction and a direction parallel to the plane of the crown 24, of which at least one lateral edge 11 of the end is beveled along a plane intersecting with the casing cylinder of this crown 24,
  • the return spring 18, one end of which is fixed to the tab 26 of the blank 23, and the other end of which bears on the base of the finger 10.

Avant montage du mécanisme 8 sur les flasques 3 et sur l'arbre 2, le ressort de rappel 18 est associé provisoirement à un anneau en plastique 27 agencé autour de la patte de fixation 26 du ressort de rappel 18 et passant par un trou 30 formé dans l'extrémité du doigt 10, l'anneau 27 ayant pour effet de maintenir comprimé le ressort de rappel 18.Before assembly of the mechanism 8 on the flanges 3 and on the shaft 2, the return spring 18 is temporarily associated with a plastic ring 27 arranged around the fixing lug 26 of the return spring 18 and passing through a hole 30 formed in the end of the finger 10, the ring 27 having the effect of maintaining compressed the return spring 18.

Après montage du mécanisme 8 sur les flasques 3, la roue crantée 7 est rendue solidaire de l'arbre fixe 2, et un autre circlip 29 est placé en bout de la tringle 12. L'élimination de l'anneau 27 rend le verrou 8 opérationnel, et prêt à intervenir en cas de défaillance du ressort de compensation.After assembly of the mechanism 8 on the flanges 3, the toothed wheel 7 is secured to the fixed shaft 2, and another circlip 29 is placed at the end of the rod 12. The elimination of the ring 27 makes the lock 8 operational, and ready to intervene in the event of a failure of the compensation

Comme il va de soi l'invention ne se limite pas au seul mode d'exécution préférentiel décrit ci-dessus.It goes without saying that the invention is not limited to the single preferred embodiment described above.

Elle embrasse au contraire toutes les autres variantes possibles de réalisation.On the contrary, it embraces all the other possible variants of embodiment.

Notamment, le mode de réalisation du verrou 8 sous la forme d'un mécanisme séparé procure de nombreux avantages, mais n'est pas une contrainte technique: le doigt 10 est en variante articulé sur un téton solidaire par construction de l'un des flasques 3.In particular, the embodiment of the latch 8 in the form of a separate mechanism provides many advantages, but is not a technical constraint: the finger 10 is alternatively articulated on an integral pin by construction of one of the flanges 3.

De même, la pièce mécanique sur laquelle est fixée l'extrémité extérieure 6 du ressort de compensation 4 n'est pas obligatoirement une tige cylindrique 16 comme le montrent les différentes figures. Il s'agit en général d'une barrette qui coulisse dans deux boutonnières 17. Ces boutonnières sont de préférence rectilignes, mais elles sont aussi alternativement en arc de cercle.Similarly, the mechanical part on which is fixed the outer end 6 of the compensation spring 4 is not necessarily a cylindrical rod 16 as shown in the various figures. This is usually a bar that slides in two buttonholes 17. These buttonholes are preferably rectilinear, but they are also alternately in a circular arc.

De même encore, il n'est pas nécessaire que le doigt 10 soit maintenu écarté de la roue crantée 7 par l'extrémité de la tige 16 elle-même. Avantageusement, l'extrémité de cette tige, ou barrette, comporte aussi, dans une autre variante, un étrier mobile sur lequel repose le doigt 10.Similarly, it is not necessary that the finger 10 is kept away from the toothed wheel 7 by the end of the rod 16 itself. Advantageously, the end of this rod, or bar, also comprises, in another variant, a movable stirrup on which the finger 10 rests.

Afin de faciliter le mouvement de retrait de l'extrémité la tige 16, ou de l'étrier mobile, un ou plusieurs éléments de rappel peuvent, dans ces variantes, relier la tige 16, ou l'étrier, à au moins l'un des flasques 3.In order to facilitate the withdrawal movement of the end of the rod 16, or of the mobile stirrup, one or more return elements may, in these variants, connect the rod 16, or the stirrup, to at least one flanges 3.

L'extrémité extérieure 6 du ressort de compensation 4 est, dans le mode de réalisation préféré de l'invention, fixée par une agrafe 19 sur la tige 16. Tout autre moyen de fixation de l'extrémité extérieure 6 du ressort de compensation 4 sur la tige 16, ou la barrette, tel que boulons et écrous, rivets, colle ou soudure, ne sortirait pas non plus du cadre de la présente invention.The outer end 6 of the compensation spring 4 is, in the preferred embodiment of the invention, fixed by a clip 19 on the rod 16. Any other means of fixing the outer end 6 of the compensation spring 4 on the rod 16, or the bar, such as bolts and nuts, rivets, glue or solder, would not be beyond the scope of the present invention.

Claims (13)

Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical, ladite boîte (1) étant du type de celles de la forme générale d'un cylindre présentant au moins une ouverture latérale et comportant: - une bobine formée de l'assemblage de deux flasques (3) et dont la rotation autour d'un arbre fixe (2) assure le déplacement vertical dudit rideau, - un ressort spiral de compensation (4) du poids dudit rideau par action sur lesdits flasques (3), l'extrémité intérieure (5) dudit ressort de compensation (4) étant destinée à être fixée audit arbre fixe (2), - une roue crantée (7) destinée à être fixée sur ledit arbre fixe (2), - un verrou basculant (8) apte à coopérer avec au moins un cran (9) de ladite roue crantée (7) et à bloquer la rotation de ladite bobine pour éviter la descente dudit rideau en cas de rupture dudit ressort de compensation (4), ledit verrou basculant (8) comprenant un doigt (10) articulé par sa base sur l'un desdits flasques (3) selon une direction axiale et une direction radiale par rapport audit arbre (2), et un ressort de rappel (18) agissant sur ledit doigt (10), de telle sorte que ledit doigt (10), dont au moins un bord latéral (11) de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de ladite roue crantée (7), est susceptible d'échapper audit cran (9) au moins en suivant une course selon ladite direction axiale, caractérisée en ce que l'extrémité extérieure (6) dudit ressort de compensation (4) est rendue solidaire par des moyens de fixation (19) d'une barrette (16) montée mobile en translation dans deux boutonnières (17) parallèles agencées chacune au voisinage de la périphérie de chacun desdits flasques (3), une extrémité de ladite barrette (16) coopérant avec l'extrémité dudit doigt (10) et maintenant ledit doigt (10) à distance dudit cran (9) dans l'état normal dudit ressort de compensation (4), et étant dissociée de l'extrémité dudit doigt (10) après la rupture dudit ressort de compensation (4), libérant de la sorte l'extrémité dudit doigt (10) entraîné par ledit ressort de rappel (18) vers ledit cran (9) en suivant ladite direction radiale.A spring box (1) of a vertical rolling shutter rolling fall arrest device, said box (1) being of the type of the general shape of a cylinder having at least one lateral opening and comprising: a coil formed of the assembly of two flanges (3) and whose rotation about a fixed shaft (2) ensures the vertical displacement of said curtain, - a spiral spring (4) for compensating the weight of said curtain by acting on said flanges (3), the inner end (5) of said compensation spring (4) being intended to be fixed to said fixed shaft (2), a toothed wheel (7) intended to be fixed on said fixed shaft (2), - A rocking lock (8) adapted to cooperate with at least one notch (9) of said toothed wheel (7) and to block the rotation of said coil to prevent the lowering of said curtain in case of rupture of said compensation spring (4) said rocking latch (8) comprising a finger (10) articulated by its base on one of said flanges (3) in an axial direction and a radial direction relative to said shaft (2), and a return spring (18) acting on said finger (10), such that said finger (10), of which at least one lateral edge (11) of the end is beveled along a plane intersecting with the casing cylinder of said toothed wheel (7), is capable of escaping said notch (9) at least following a stroke in said axial direction, characterized in that the outer end (6) of said compensating spring (4) is secured by fixing means (19) of a bar (16) movably mounted in translation in two parallel buttonholes (17) each arranged at the near the periphery of each of said flanges (3), one end of said bar (16) cooperating with the end of said finger (10) and keeping said finger (10) away from said notch (9) in the normal state of said compensation spring (4), and being dissociated from the end of said finger (10) after the breaking of said compensation spring (4), thereby releasing the end of said finger (10) driven by said return spring (18) to said notch (9) in said radial direction. Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon la revendication 1, caractérisée en ce que lesdits moyens de fixation comprennent une agrafe (19).Spring box (1) of a vertical rolling curtain fall arrest device according to claim 1, characterized in that said fixing means comprise a clip (19). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 ou 2 précédentes, caractérisée en ce que ladite barrette est constituée d'une tige (16) cylindrique dont les deux extrémités sont munies de circlips coopérant avec les bords desdites boutonnières (17).Spring-loaded box (1) of a rolling-vertical roll-arresting fall arrest device according to any one of the preceding claims 1 or 2, characterized in that said bar consists of a cylindrical rod (16) whose two ends are provided with circlips cooperating with the edges of said buttonholes (17). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 à 3 précédentes, caractérisée en ce que l'extrémité de ladite barrette (16) coopérant avec ledit doigt (10) est constituée d'un étrier mobile.Spring-loaded box (1) of a vertical rolling shutter fall arrest device according to any one of claims 1 to 3 above, characterized in that the end of said bar (16) cooperating with said finger (10) consists of a moving stirrup. Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 à 4 précédentes, caractérisée en ce que l'extrémité de ladite barrette (16) coopérant avec ledit doigt (10) est rappelée en direction opposée audit doigt (10) par un élément de rappel.Spring box (1) of a vertical rolling shutter fall arrest device according to any one of claims 1 to 4 above, characterized in that the end of said bar (16) cooperating with said finger (10) is recalled in opposite direction to said finger (10) by a biasing member. Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 à 5 précédentes, caractérisée en ce que la base dudit doigt (10) est articulée sur un téton axial solidaire de l'un desdits flasques (3).Spring box (1) of a vertical rolling shutter fall arrest device according to any one of the preceding claims 1 to 5, characterized in that the base of said finger (10) is articulated on an axial stud integral with one of said flanges (3). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 à 5 précédentes, caractérisée en ce que la base dudit doigt (10) est articulée sur une tringle (12) cylindrique agencée axialement dans deux alésages (25) desdits flasques (3).Spring-loaded box (1) of a vertical rolling curtain fall arrest device according to any one of the preceding claims 1 to 5, characterized in that the base of said finger (10) is articulated on a cylindrical rod (12) arranged axially in two bores (25) of said flanges (3). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 1 à 5 précédentes, caractérisé en ce que ledit verrou est un ensemble mécanique (8) comprenant: - un flan (23) présentant une patte (26) de fixation et une partie en forme de couronne (24) destinée à être engagée sur ledit arbre fixe (2); - une tringle (12) cylindrique destinée à traverser lesdits flasques (3) parallèlement audit arbre fixe (2) et dont une extrémité est solidaire dudit flan (23); - ledit ressort de rappel (18) dont une extrémité est fixée à ladite patte (26) dudit flan (23), et dont l'autre extrémité porte sur la base dudit doigt (10); - ledit doigt (10) dont la base est articulée autour de ladite tringle (12). Spring box (1) of a vertical rolling curtain fall arrest device according to any one of the preceding claims 1 to 5, characterized in that said latch is a mechanical assembly (8) comprising: - a blank (23) having a tab (26) for fixing and a ring-shaped portion (24) intended to be engaged on said fixed shaft (2); - A rod (12) cylindrical for passing through said flanges (3) parallel to said fixed shaft (2) and one end of which is integral with said blank (23); said return spring (18), one end of which is fixed to said tab (26) of said blank (23), and the other end of which bears on the base of said finger (10); - said finger (10) whose base is articulated around said rod (12). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon la revendication 8, caractérisée en ce que, avant montage, ledit verrou (8) comprend de plus un élément de maintien (27) destiné à être supprimé après montage, de préférence un anneau en plastique (27) maintenant comprimé ledit ressort de rappel (18).Spring box (1) of a vertical rolling curtain fall arrest device according to claim 8, characterized in that , before mounting, said latch (8) further comprises a holding element (27) intended to be removed after assembly, preferably a plastic ring (27) now compressing said return spring (18). Boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon l'une quelconque des revendications 6 à 8 précédentes, caractérisée en ce que la base dudit doigt (10) présente une section droite en forme de U, au moins une lumière oblongue (15) d'une largeur sensiblement égale mais supérieure au diamètre de ladite tringle (12) ou dudit téton étant agencée dans au moins une aile dudit U de manière à coopérer avec ladite tringle (12) ou ledit tétonSpring box (1) of a vertical traveling rolling curtain preventing device according to one of the preceding claims 6 to 8, characterized in that the base of said finger (10) has a U-shaped cross-section, at least one oblong light (15) of a width substantially equal to but greater than the diameter of said rod (12) or said pin being arranged in at least one flange of said U so as to cooperate with said rod (12) or said nipple Mécanisme de verrouillage (8) destiné à composer une boîte à ressort (1) de dispositif antichute de rideau roulant à déplacement vertical selon la revendication 1, caractérisé en ce que ledit mécanisme (8) comprend: - un flan (23) présentant une partie en forme de couronne (24) destinée à être engagée axialement sur ledit arbre fixe (2), et une patte (26) de fixation s'étendant perpendiculairement au plan de ladite couronne (24), - une tringle (12) cylindrique solidaire dudit flan (24) par une extrémité et s'étendant perpendiculairement au plan de ladite couronne (24), ladite tringle (12) étant destinée à traverser lesdits flasques (3) parallèlement audit arbre fixe (2), - ledit doigt (10) articulé par sa base autour de ladite tringle (12) selon une direction perpendiculaire et une direction parallèle au plan de ladite couronne (24), dont au moins un bord latéral de l'extrémité est biseauté (11) suivant un plan sécant avec le cylindre enveloppe de ladite couronne (24), - ledit ressort de rappel (18) dont une extrémité est fixée à ladite patte (26) dudit flan (23), et dont l'autre extrémité porte sur la base dudit doigt (10). Locking mechanism (8) for composing a spring box (1) of a vertical rolling shutter fall arrest device according to claim 1, characterized in that said mechanism (8) comprises: - a blank (23) having a ring-shaped portion (24) intended to be engaged axially on said fixed shaft (2), and a fastening tab (26) extending perpendicular to the plane of said ring (24), - A rod (12) cylindrical integral with said blank (24) at one end and extending perpendicular to the plane of said ring (24), said rod (12) being intended to pass through said flanges (3) parallel to said fixed shaft (2). ) said finger articulated by its base around said rod in a direction perpendicular to and parallel to the plane of said crown, at least one lateral edge of the end of which is beveled next a secant plane with the casing cylinder of said ring (24), - said return spring (18), one end of which is fixed to said tab (26) of said blank (23), and the other end of which bears on the base of said finger (10). Mécanisme de verrouillage (8) selon la revendication 11, caractérisé en ce qu'il comprend de plus, avant montage, un élément de maintien (27) destiné à être supprimé après montage, de préférence un anneau en plastique (27) agencé autour d'au moins une partie de ladite patte (26) et d'au moins une partie de l'extrémité dudit doigt (10), maintenant comprimé ledit ressort de rappel (18).Locking mechanism (8) according to claim 11, characterized in that it further comprises, before mounting, a holding element (27) to be removed after mounting, preferably a plastic ring (27) arranged around a at least a portion of said tab (26) and at least a portion of the end of said finger (10), now compressing said return spring (18). Mécanisme de verrouillage (8) selon la revendication 12, caractérisé en ce que la base dudit doigt (10) présente une section droite en forme de U, au moins une lumière oblongue (15) d'une largeur sensiblement égale mais supérieure au diamètre de ladite tringle (12) étant agencée dans au moins une aile dudit U de manière à coopérer avec ladite tringle (12).Locking mechanism (8) according to claim 12, characterized in that the base of said finger (10) has a U-shaped cross section, at least one oblong slot (15) of a width substantially equal to but greater than the diameter of said rod (12) being arranged in at least one wing of said U so as to cooperate with said rod (12).
EP07290151A 2006-02-06 2007-02-06 Spring box with antidropping device for vertical roller shutter Active EP1816294B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200730056T SI1816294T1 (en) 2006-02-06 2007-02-06 Spring box with antidropping device for vertical roller shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0601036A FR2897096B1 (en) 2006-02-06 2006-02-06 VERTICAL DISPLACEMENT ROLLING DEVICE FAN SPRING HOUSING.

Publications (2)

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EP1816294A1 true EP1816294A1 (en) 2007-08-08
EP1816294B1 EP1816294B1 (en) 2009-05-06

Family

ID=37057291

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Application Number Title Priority Date Filing Date
EP07290151A Active EP1816294B1 (en) 2006-02-06 2007-02-06 Spring box with antidropping device for vertical roller shutter

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Country Link
EP (1) EP1816294B1 (en)
AT (1) ATE430864T1 (en)
DE (1) DE602007001040D1 (en)
ES (1) ES2326929T3 (en)
FR (1) FR2897096B1 (en)
PT (1) PT1816294E (en)
SI (1) SI1816294T1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2017431A2 (en) 2007-07-20 2009-01-21 Profilmar Spring box with anti-fall device for vertical roller shutter fitted with a safety device, and corresponding safety elements

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2672120B1 (en) * 2016-12-12 2019-03-20 Dinaces S L MODULAR SYSTEM WITH SAFETY LOCK FOR SHUTTER DRUMS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922832A1 (en) * 1997-12-09 1999-06-16 Michel Javey Catching device for rollable closing devices
FR2790033A1 (en) * 1999-02-19 2000-08-25 Profilmar FALL PROTECTION DEVICE FOR VERTICALLY MOVING CLOSURE
FR2793837A1 (en) * 1999-05-21 2000-11-24 France Fermetures Anti-collapse safety closing mechanism for vertical metallic shutters does not interfere with complete closing of shutter as user can pull shutter so as to overcome friction forces on ring by flanges

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0922832A1 (en) * 1997-12-09 1999-06-16 Michel Javey Catching device for rollable closing devices
FR2790033A1 (en) * 1999-02-19 2000-08-25 Profilmar FALL PROTECTION DEVICE FOR VERTICALLY MOVING CLOSURE
FR2793837A1 (en) * 1999-05-21 2000-11-24 France Fermetures Anti-collapse safety closing mechanism for vertical metallic shutters does not interfere with complete closing of shutter as user can pull shutter so as to overcome friction forces on ring by flanges

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2017431A2 (en) 2007-07-20 2009-01-21 Profilmar Spring box with anti-fall device for vertical roller shutter fitted with a safety device, and corresponding safety elements
EP2017431A3 (en) * 2007-07-20 2013-10-02 Profilmar Spring box with anti-fall device for vertical roller shutter fitted with a safety device, and corresponding safety elements

Also Published As

Publication number Publication date
SI1816294T1 (en) 2009-10-31
ES2326929T3 (en) 2009-10-21
PT1816294E (en) 2009-08-11
ATE430864T1 (en) 2009-05-15
FR2897096B1 (en) 2008-03-14
FR2897096A1 (en) 2007-08-10
EP1816294B1 (en) 2009-05-06
DE602007001040D1 (en) 2009-06-18

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