EP1030028A1 - Fall protection device for a vertically movable closure - Google Patents

Fall protection device for a vertically movable closure Download PDF

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Publication number
EP1030028A1
EP1030028A1 EP00430004A EP00430004A EP1030028A1 EP 1030028 A1 EP1030028 A1 EP 1030028A1 EP 00430004 A EP00430004 A EP 00430004A EP 00430004 A EP00430004 A EP 00430004A EP 1030028 A1 EP1030028 A1 EP 1030028A1
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EP
European Patent Office
Prior art keywords
flange
finger
closure
protection device
toothed wheel
Prior art date
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Granted
Application number
EP00430004A
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German (de)
French (fr)
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EP1030028B1 (en
Inventor
Jean-Louis Marinetti
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PROFILMAR
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PROFILMAR
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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
    • E06B9/84—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against dropping
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/60—Spring drums operated only by closure members

Definitions

  • the present invention relates to a fall arrest device for vertical displacement closure.
  • the technical sector of the invention is that of the realization of a safety and operating device for curtain or apron or door or grille or blind or gate etc ... allowing the closing of access opening such as for a garage, a store, a warehouse, a rack etc ...
  • the main application of the invention is to be able to respect the criteria to be met by such safety devices, such as within the framework of standards, in particular French, the last of which of October 1992 has for reference NFP 25362 and to which we can usefully refer to.
  • That erasure closures vertical must include a retainer, not stressed in normal operation, preventing the apron from falling in the event of failure of one of the elements of the carrier system, subject to a journey limited to 0.30 meters or 300 mm ".
  • the envisaged failure is failure or load shedding of the carrier device, namely: “either breakage or load shedding of a cable, chain, strap etc ...
  • a solution to the problem posed is a fall arrest device for vertical displacement closure comprising a known hinge, both in vertical panel closers than in systems winch type drive, a fixed shaft, at least one rotating flange relative to this tree and whose rotation ensures the vertical displacement of the closure, and a means of compensating for the weight of the closure by action on said flange;
  • which fall arrest device includes a wheel notched secured to the shaft and a tilting lock driven in rotation by said flange and able to cooperate with at least one notch of said toothed wheel and to block the rotation of the flange to avoid the descent of said closure :
  • said rocker lock comprises a finger of which at least a lateral edge of the end is bevelled along a plane intersecting with the envelope cylinder of said toothed wheel, which finger is mounted movable laterally with respect thereto following a course allowing it to less to escape from this notch.
  • the toothed wheel comprises at least two crowns, the first of which comprises said locking notches in rotation of the closure, and the second, placed laterally with respect to the first in the direction of lateral movement of the finger, comprises at least one cam whose face against which can come to rest the lateral beveled edge of the end of the finger is able to make it escape completely from the toothed wheel in the direction of the ascent of the closure, and the other side of which is suitable for support the end of this finger and is profiled along a slope bringing said end in front of a locking notch in the direction of the closing down: the distance between two cam positions successive is at least equal to that separating two notches.
  • Figure 1 is a top view and in partial section along II 'of the Figure 2 of a fall arrest device according to the invention mounted on a system to vertical displacement closing winding with a spring compensation with blade wound on itself and arranged in normal position Operating.
  • Figure 2 is a side view along II-II 'of the device of Figure 1.
  • Figure 3 is a sectional view along III-III 'of the device and the closure system shown in Figure 2.
  • Figure 4 is the same view of the device as Figure 2, but in locking and blocking position of the fall prevention device preventing lowering of the closing apron.
  • Figure 5 is a view in the same presentation as that of the Figure 1, but with the locking bolt according to the invention entirely disengaged from the notched fixed wheel which allows its locking, allowing the ascent or descent of said closing apron.
  • Figure 6 is the same view of the device as Figures 2 and 4, but with the locking bolt in position to authorize the lowering of the apron closing, as in figure 5, but here close to relock the system winding on the toothed wheel.
  • FIG. 7 is a presentation of the device and system according to the section VII-VII 'partial of Figure 6 and in the same view as the figures 1 and 5 ,.
  • the fall arrest device for vertical displacement closure comprises a fixed shaft 8, at least one flange 7 1 , rotating relative to this shaft 8 and whose rotation ensures the vertical displacement of the closure and a compensation means 6 of the weight thereof by action on said flange: as indicated previously, in the example of the embodiment described below, the compensation means is a leaf spring wound on itself and whose lower end is fixed to the fixed shaft 8 and the outer end is secured to a spring box 7 and said closure is an apron with parallel strips capable of being wound around said spring box 7 on which it is fixed by different legs 14.
  • the fall prevention device also comprises, in a known manner, a toothed wheel 2 secured to the shaft 8 and a rocking latch rotated by said flange 7 1 and able to cooperate with at least one notch 23 of said toothed wheel 2 and to be blocked the rotation of the flange 7 1 to avoid the descent of said closure, as described below and shown in particular in FIG. 4.
  • said rocker lock 1 as can be see in Figures 1, 5 and 7, has a finger with at least one edge lateral 11 of the end is beveled along a secant plane with the cylinder envelope of said toothed wheel 2, which is on the same axis as the shaft fixed 8: which finger is mounted movable laterally relative to the wheel notched 2 following a race allowing it at least to escape said notch 23, as shown in FIGS. 5 and 7, and said intersecting plane is inclined of course in the direction of lateral movement of the latch 1, by cutting also the support axis 10 thereof on the side where the lock must escape the notch 23 relative to wheel 2.
  • said latch 1 comprises an articulation around the support axis 10 fixed on said flange 7 1 , which articulation comprises a first orifice abutting against a shoulder 17 of said axis and a second oblong orifice 15 located on the same side as the bevelled side edge 11 of the locking finger and capable of ensuring said lateral movement thereof; this movement must allow the lock 1 to escape at least the notch 23 in which it would be blocked following for example the rupture of the compensation spring 6, by pivoting the lock around the first orifice and perpendicular to the support axis 10. In in other embodiments, it is the whole of the lock which could move parallel to said support axis 10.
  • Said lock 1 can be "U" shaped, one side of the base forms the finger with its beveled end 11 and the wings of the "U” bear said articulation orifices, that corresponding to the oblong orifice 15 being curved to allow its pivoting against by a washer 16 fixed on the support pin 17, and now the lock thereon; that same wing side of the "U” being also interrupted on the side of finger 11 to allow the tilting of said locking bolt towards the toothed wheel 2.
  • Said return device 4 can be a spiral spring ensuring also the reminder of latch 1 in its lateral movement to tend to always bring the end 11 of the locking finger towards the toothed wheel 2.
  • the two said rotating flanges 7 1 , 3 2 are coupled by connecting means 20, such as rivets fixed on one of the flanges and sliding in oblong slots 19 made in the second flange, on the one hand allowing an angular offset between them able to erase said stop 13 from the end of the tilting latch 1 and on the other hand ensuring their reciprocal drive from one to the other, (either in the direction of the descent of the closing apron, represented by the sign - in the figures or in the direction of the climb represented by the + sign).
  • connecting means 20 such as rivets fixed on one of the flanges and sliding in oblong slots 19 made in the second flange, on the one hand allowing an angular offset between them able to erase said stop 13 from the end of the tilting latch 1 and on the other hand ensuring their reciprocal drive from one to the other, (either in the direction of the descent of the closing apron, represented by the sign - in the figures or in the direction of the climb represented by the + sign
  • the latch 1 When the spring or other compensating means 6 assumes its role of balancing the weight of the closing apron, the latch 1 is always prevented from tilting by means of the stop 13, the two said rotating flanges 7 1 , 3 2 being also connected by an elastic return means 5 tending to oppose said movement of the compensation means 6 on the intermediate flange 3 2 : thus, when said compensation means 6 no longer performs its function, said elastic means 5 is able to rotate said flanges relative to each other in the opposite direction to that driven by the compensation means, which has the effect of erasing said stop 13 relative to the end of the finger of the lock 1, this ci coming to lock in a notch 23 of the toothed wheel 2, preventing rotation in the closing direction - of the deck.
  • said leaf spring 6 is enclosed in at least one bell 3, which may be in one or two parts, covering its outer end which is fixed thereto and whose flange 3 2 movable in rotation relative to that 7 1 of the actual external spring box 7 constitutes a side wall, said bell 3 being itself located inside said spring box 7, as shown in FIG. 3.
  • the external spring box 7 is therefore mobile in rotation around the support shaft 8, thanks to bearings 9, and is guided in axial position on this shaft by means of a guide plate 18 enclosing the toothed wheel 2 around which it can rotate freely.
  • the toothed wheel 2 is fixed on said shaft 8 by any means, such as a through bolt 12 and the inner bell 3 is fixed inside the spring box 7 by said connecting means 20 and carries said stop 13 which can be made by simply folding one of its walls forming the flange 3 2 .
  • the entire fall arrest system comprising said toothed wheel 2, the rocking latch 1 with its support axis 10 and its return spring 4, and the stop 13 are placed outside the spring box and in case it is installed at one end of the apron of closure, on the other side of the box 7 relative to it.
  • the toothed wheel 2 further comprises at at least two crowns, the first of which comprises said locking notches 23 in rotation of the closure and the second, placed laterally with respect to the first in the direction of lateral movement of the finger 11, comprises at less a cam 22 whose face 241 against which can come to bear the lateral edge 11 at the bevel of the end of the finger 11 is capable of escaping this completely from the notched wheel 2 in the direction of the ascent of the closure, and the other face 242 of which is capable of bearing the end of this finger 11 and is profiled along a slope bringing said end 11 back into face of a locking notch 23 in the direction of descent of the closure, the distance between two successive cam positions 22 being at least equal to the one separating two notches 23.
  • the tilting of the latch 1 around its support axis 10 is limited by any means, such as a stop carried by the plate 18 or the flange 7 1 , or a circular shoulder forming a third crown disposed laterally so that the end of the finger 11, when the latter is completely disengaged from the toothed wheel 2 in the direction of the ascent of the closing apron, (as represented in FIG. 5), then returns, when the descending of the closing apron, take support on one face 24 2 of a cam 22 as shown in FIG. 6.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Ladders (AREA)
  • Details Of Aerials (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Gates (AREA)
  • Control And Safety Of Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

The anti-drop lock for a vertically sliding garage door has a notched wheel (2) fixed to the pulley shaft (8) and a tilting bolt (1) driven by the pulley flange (7) to cooperate with a notch (23) in the wheel to prevent rotation of the pulley. The bolt has a bifurcated finger following a secant plate of the pulley and mounted for lateral movement.

Description

La présente invention a pour objet un dispositif antichute pour fermeture à déplacement vertical.The present invention relates to a fall arrest device for vertical displacement closure.

Le secteur technique de l'invention est celui de la réalisation d'un dispositif de sécurité et de manoeuvre de rideau ou tablier ou porte ou grille ou store ou portail etc... permettant la fermeture d'ouverture d'accès tel que pour un garage, un magasin, un entrepôt, une baie etc...The technical sector of the invention is that of the realization of a safety and operating device for curtain or apron or door or grille or blind or gate etc ... allowing the closing of access opening such as for a garage, a store, a warehouse, a rack etc ...

L'application principale de l'invention est de pouvoir respecter les critères auxquels doivent satisfaire de tels dispositifs de sécurité, tels que dans le cadre des normes, en particulier françaises, dont la dernière d'Octobre 1992 a pour référence NFP 25362 et auxquelles on pourra utilement se référer.The main application of the invention is to be able to respect the criteria to be met by such safety devices, such as within the framework of standards, in particular French, the last of which of October 1992 has for reference NFP 25362 and to which we can usefully refer to.

Cette norme spécifie, entre autres, "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 mètres ou 300 mm". La défaillance envisagée est la rupture ou le délestage du dispositif porteur, à savoir : "soit rupture ou délestage d'un câble, d'une chaíne, d'une sangle etc... de suspension du tablier, soit rupture d'un ressort de compensation": ladite exigence d'arrêt de la chute du tablier étant à satisfaire par le dispositif de retenue et non par les éléments du dispositif porteur ; en conséquence, tout ou partie du dispositif porteur ne peut pas être considéré comme constituant le dispositif de retenue et la défaillance de l'un quelconque des éléments du dispositif porteur doit entraíner le déclenchement de ce dispositif de retenue.This standard specifies, inter alia, "that erasure closures vertical must include a retainer, not stressed in normal operation, preventing the apron from falling in the event of failure of one of the elements of the carrier system, subject to a journey limited to 0.30 meters or 300 mm ". The envisaged failure is failure or load shedding of the carrier device, namely: "either breakage or load shedding of a cable, chain, strap etc ... of suspension of the apron, either break a compensation spring ": said requirement to stop the fall of the deck being to be satisfied by the retainer and not by the elements of the carrier device; consequently, all or part of the carrier device does not cannot be regarded as constituting the restraint and the failure of any element of the carrier device must cause the triggering of this restraint.

Pour satisfaire ces critères, différents systèmes de sécurité ont ainsi été développés par différents fabricants, dont certains ont même déposé des demandes de brevets, tels qu'en particulier :

  • la demande de brevet FR 2739 656 publiée le 11 Avril 1997 et intitulé "dispositif d'actionnement d'une fermeture à enroulement", qui comporte un axe fixe sur lequel est monté au moins une bobine pourvue d'au moins un ressort à spirale, l'extrémité intérieure du ressort étant solidaire de l'axe fixe et son extrémité extérieure étant solidaire de la bobine, celle-ci étant elle-même couplée à l'extrémité supérieure du tablier réalisant ladite fermeture à enroulement : d'une manière connue, et tel que repris dans ce brevet, 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 ; pour cela, un flasque d'enroulement solidaire de la partie supérieure dudit tablier est couplé à la bobine, enfermant et entraínée par ledit ressort à spirale grâce à un doigt solidaire de ladite bobine et traversant ledit 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, ledit doigt restant toujours engagé dans ledit dispositif mobile ;
  • la demande de brevet FR 2756 319 publiée le 29 Mai 1998 et intitulé "dispositif antichute pour fermeture à effacement vertical" par enroulement, et qui comprend comme dans la demande précédente, un tablier apte à être enroulé autour d'au moins une bobine montée mobile en rotation sur un arbre fixe, et chaque bobine mobile étant reliée à l'arbre fixe par l'intermédiaire d'un ressort de compensation associé à un dispositif antichute : celui-ci comporte un élément de blocage monté mobile sur la bobine et maintenu en position d'attente par la force de rappel exercée sur celui-ci par le ressort de compensation, et un organe statique de type roue crantée solidaire de l'arbre fixe ; les crans de cette roue sont aptes à former butée audit élément de blocage quand celui-ci est basculé, lorsque la force de rappel du ressort de compensation est annulée, par exemple par la rupture de celui-ci.
To meet these criteria, different security systems have been developed by different manufacturers, some of which have even filed patent applications, such as in particular:
  • patent application FR 2739 656 published on April 11, 1997 and entitled "device for actuating a winding closure", which comprises a fixed axis on which is mounted at least one coil provided with at least one spiral spring, the inner end of the spring being secured to the fixed axis and its outer end being secured to the coil, the latter itself being coupled to the upper end of the deck carrying out said winding closure: in a known manner, and as mentioned in this patent, the safety device to stop the fall of the apron in the event of a spring break is such that it allows the coil to be coupled to the fixed axis after an angular displacement of this coil relative to the device locking, this movement being controlled by a return element mounted between the coil and this locking device; for this, a winding flange integral with the upper part of said apron is coupled to the coil, enclosing and being driven by said spiral spring by means of a finger integral with said coil and passing through said flange to move a movable element between a position standby in normal operation and a locking position with a toothed wheel secured to the fixed axis, said finger always remaining engaged in said mobile device;
  • patent application FR 2756 319 published on May 29, 1998 and entitled "fall arrest device for vertical erasure closure" by winding, and which comprises, as in the previous application, an apron capable of being wound around at least one movable mounted coil rotating on a fixed shaft, and each moving coil being connected to the fixed shaft by means of a compensating spring associated with a fall prevention device: this comprises a blocking element movably mounted on the coil and held in place waiting position by the restoring force exerted thereon by the compensating spring, and a static member of the toothed wheel type secured to the fixed shaft; the notches of this wheel are capable of forming a stop at said blocking element when the latter is tilted, when the restoring force of the compensating spring is canceled, for example by the rupture of the latter.

Si ces divers dispositifs de sécurité répondent effectivement aux exigences telles que celles indiquées dans la norme ci-dessus, ils ont tous 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 ou tout au moins de le descendre complètement pour fermer l'ouverture concernée, en particulier quand la défaillance du système de fermeture a eu lieu en cours de manoeuvre, le tablier étant alors en partie ouvert ou fermé : pour terminer la manoeuvre, il faut alors démonter le système d'enroulement, ce qui nécessite l'intervention de techniciens spécialisés : ceux-ci n'étant pas forcément disponibles au moment de l'incident, le responsable ou l'usager du local ne peut pas par exemple fermer l'accès à son local et empêcher toute intrusion non autorisée, ce qui peut être gênant quand il s'agit d'un commerce.If these various safety devices effectively meet the requirements such as those stated in the above standard they all as a main drawback, once they blocked the fall of the deck to close, if not to be able to reassemble it or at the unless you lower it completely to close the opening, especially when the failure of the locking system has taken place during maneuver, the deck then being partly open or closed: for complete the maneuver, you must then disassemble the winding system, this which requires the intervention of specialized technicians: these are not necessarily available at the time of the incident, the manager or user of the room cannot for example close access to its room and prevent any unauthorized intrusion, which can be annoying when dealing with a trade.

De plus, les techniciens doivent alors intervenir avec une grande partie du tablier tirant sur le système d'enroulement et une autre partie encore enroulée alors qu'il n'y a plus de système de compensation et que le système de blocage de sécurité est inaccessible puisque situé comme dans les deux exemples de brevets ci-dessus à l'intérieur du tablier enroulé : pour accéder audit système de sécurité afin de le débloquer, il faut démonter l'ensemble du système, ce qui est très complexe et long, et nécessite de grandes précautions, car il y a des risques que, des éléments du système n'étant plus soutenus, ils échappent aux techniciens.In addition, technicians must intervene with great care. part of the apron pulling on the winding system and another part still wound when there is no more compensation system and the security blocking system is inaccessible since located as in two examples of the above patents inside the rolled up apron: for access said security system in order to unlock it, it must be dismantled the whole system, which is very complex and time consuming, and requires great precautions, because there are risks that, elements of the system no longer supported, they escape the technicians.

Le problème posé est donc, tout en respectant les exigences des normes telles que celles indiquées précédemment, lors de la rupture ou de la 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 chaíne, d'une sangle etc... suivant le type de suspension utilisé), de pouvoir, une fois le blocage de sécurité réalisé et le tablier ou panneau arrêté en position alors à moitié fermé ou ouvert :

  • d'une part relever complètement celui-ci, sans avoir à intervenir sur le système d'enroulement proprement dit, et donc accéder et utiliser son local en attendant les techniciens de dépannage et,
  • d'autre part rabaisser manuellement ledit tablier pour mettre son local en sécurité si lesdits techniciens ne peuvent intervenir dans un délai raisonnable afin d'éviter à l'usager de rester en surveillance en les attendant.
The problem posed is therefore, while respecting the requirements of standards such as those indicated above, during the rupture or failure of any of the elements of the carrier device (such as a compensating spring, but also the breakage or shedding of a cable, chain, strap etc ... depending on the type of suspension used), power, once the safety lock has been made and the deck or panel stopped in position then at half closed or open:
  • on the one hand completely raise it, without having to intervene on the winding system itself, and therefore access and use its premises while waiting for the breakdown technicians and,
  • on the other hand manually lower said apron to secure its premises if said technicians cannot intervene within a reasonable period of time in order to avoid the user staying under surveillance while waiting for them.

Une solution au problème posé est un dispositif antichute pour fermeture à déplacement vertical comportant d'une marnière connue, tant dans les dispositifs de fermeture à panneau vertical que dans les systèmes d'entraínement 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 ledit flasque ; lequel dispositif antichute comprend une roue crantée solidaire de l'arbre et un verrou basculant entraíné en rotation par ledit flasque et apte à coopérer avec au moins un cran de ladite roue crantée et à bloquer la rotation du flasque pour éviter la descente de ladite fermeture : selon l'invention, ledit verrou basculant comporte un doigt dont au moins un bord latéral de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de ladite roue crantée, lequel doigt est monté mobile latéralement par rapport à celle-ci suivant une course lui permettant au moins d'échapper audit cran.A solution to the problem posed is a fall arrest device for vertical displacement closure comprising a known hinge, both in vertical panel closers than in systems winch type drive, a fixed shaft, at least one rotating flange relative to this tree and whose rotation ensures the vertical displacement of the closure, and a means of compensating for the weight of the closure by action on said flange; which fall arrest device includes a wheel notched secured to the shaft and a tilting lock driven in rotation by said flange and able to cooperate with at least one notch of said toothed wheel and to block the rotation of the flange to avoid the descent of said closure : according to the invention, said rocker lock comprises a finger of which at least a lateral edge of the end is bevelled along a plane intersecting with the envelope cylinder of said toothed wheel, which finger is mounted movable laterally with respect thereto following a course allowing it to less to escape from this notch.

Ainsi, bien que le tablier de fermeture soit bloqué dans sa descente par ledit verrou basculant, il est possible de le remonter puisque, dans ce sens, ledit verrou s'effacera cran après cran et dès que l'on relâchera le poids dudit 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 said tilting lock, it is possible to reassemble it since, in this sense, said lock will be erased notch after notch and as soon as the weight is released said apron, it will not be able to descend beyond the notch in which will immediately block the finger of the lock, its bevel does not allow its erasure only in the upward direction.

De plus, pour satisfaire au deuxième objectif de la présente invention, la roue crantée comprend au moins deux couronnes dont la première comporte lesdits crans de blocage en rotation de la fermeture, et 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 peut venir s'appuyer 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, et dont l'autre face est apte à prendre en appui l'extrémité de ce doigt et est profilée suivant une pente ramenant ladite 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, to meet the second objective of the present invention, the toothed wheel comprises at least two crowns, the first of which comprises said locking notches in rotation of the closure, and the second, placed laterally with respect to the first in the direction of lateral movement of the finger, comprises at least one cam whose face against which can come to rest the lateral beveled edge of the end of the finger is able to make it escape completely from the toothed wheel in the direction of the ascent of the closure, and the other side of which is suitable for support the end of this finger and is profiled along a slope bringing said end in front of a locking notch in the direction of the closing down: the distance between two cam positions successive 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 ledit 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 : aussi par exemple il suffit que la distance entre deux positions de cames successives soit inférieure à 30 cm pour respecter la norme indiquée précédemment.Thus, thanks to the cams of this second crown and the bevel of the finger of the locking bolt, it is possible on the one hand to go up completely up to the upper part as mentioned above the entire closing apron by erasing the finger of the lock thanks to its bevelled side edge, and on the other hand to descend said apron not to not a distance corresponding at most to the distance between two cams, the latch finger relocating each time in a notch of the toothed wheel: also for example it is sufficient that the distance between two cam positions successive is less than 30 cm to meet the standard indicated previously.

Le résultat est un nouveau dispositif antichute pour fermeture à déplacement vertical, répondant au problème posé et apportant de plus des solutions techniques particulières telles que décrites ci-après, 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 ledit 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 à lame, 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 audit ressort de compensation ou à la boíte 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 boíte qui le renferme, en risquant d'empêcher tout mouvement de rotation relatif de celle-ci par rapport à d'autre organe, tel que justement de sécurité.
The result is a new fall arrest device for vertical displacement closure, responding to the problem posed and also providing specific technical solutions as described below, which allow for example:
  • to have the entire safety device outside the winding and compensation system of the closing apron, which allows easier intervention;
  • to raise or lower said closing apron completely and to secure it in this position while eliminating any rotational force on the winding system, which simplifies the intervention of breakdown technicians;
  • in the case of a device compensated by a leaf spring, to prevent it, when it breaks, from blocking the security system, which can happen when it is directly linked to said compensating spring or to the box which encloses it: in fact, in the event of a rupture, the leaf spring suddenly relaxes and opens to the maximum by pressing against the outer wall of the box which contains it, risking preventing any relative rotational movement of the latter relative to another member, such as safety.

On pourrait citer d'autres avantages de la présente invention, mais ceux cités ci-dessus en montrent déjà suffisamment pour en prouver la nouveauté et l'intérêt.Other advantages of the present invention could be cited, but those cited above already show enough to prove the novelty and interest.

La description et les dessins ci-joints représentent un exemple de réalisation de l'invention, mais n'ont aucun caractère limitatif : d'autres réalisations sont possibles, dans le cadre de la portée et de l'étendue de cette invention ; en particulier dans l'exemple du mode de réalisation représenté ci-après, il est décrit un dispositif de compensation par ressort à lame mais le dispositif selon l'invention est utilisable avec d'autres systèmes de compensation tel qu'à câble et à contrepoids, à ressort à spirale... ainsi que pour des tabliers à fermeture qui ne sont pas seulement à roulement mais qui peuvent être rigide et basculant etc... The description and the attached drawings represent an example of realization of the invention, but have no limiting character: others achievements are possible, within the scope and breadth of this invention; in particular in the example of the embodiment shown below, there is described a compensating device by leaf spring but the device according to the invention can be used with other systems of compensation such as cable and counterweight, spiral spring ... as well as for closing aprons which are not only rolling but which can be rigid and tilting etc ...

La figure 1 est une vue de dessus et en coupe partielle suivant II' de la figure 2 d'un dispositif antichute suivant l'invention monté sur un système à enroulement de fermeture à déplacement vertical avec un ressort de compensation à lame enroulée sur elle-même et disposée en position normale de fonctionnement.Figure 1 is a top view and in partial section along II 'of the Figure 2 of a fall arrest device according to the invention mounted on a system to vertical displacement closing winding with a spring compensation with blade wound on itself and arranged in normal position Operating.

La figure 2 est une vue latérale suivant II-II' du dispositif de la figure 1.Figure 2 is a side view along II-II 'of the device of Figure 1.

La figure 3 est une vue en coupe suivant III-III' du dispositif et du système de fermeture représenté sur la figure 2.Figure 3 is a sectional view along III-III 'of the device and the closure system shown in Figure 2.

La figure 4 est la même vue du dispositif que la figure 2, mais en position de verrouillage et blocage du dispositif antichute empêchant la descente du tablier de fermeture.Figure 4 is the same view of the device as Figure 2, but in locking and blocking position of the fall prevention device preventing lowering of the closing apron.

La figure 5 est une vue suivant la même présentation que celle de la figure 1, mais avec le verrou de blocage suivant l'invention entièrement dégagé de la roue fixe crantée qui permet son verrouillage, autorisant la remontée ou la descente dudit tablier de fermeture.Figure 5 is a view in the same presentation as that of the Figure 1, but with the locking bolt according to the invention entirely disengaged from the notched fixed wheel which allows its locking, allowing the ascent or descent of said closing apron.

La figure 6 est la même vue du dispositif que les figures 2 et 4, mais avec le verrou de blocage en position d'autoriser la descente du tablier de fermeture, comme sur la figure 5, mais ici près à reverrouiller le système d'enroulement sur la roue crantée.Figure 6 is the same view of the device as Figures 2 and 4, but with the locking bolt in position to authorize the lowering of the apron closing, as in figure 5, but here close to relock the system winding on the toothed wheel.

La figure 7 est une présentation du dispositif et système suivant la coupe VII-VII' partielle de la figure 6 et suivant la même vue que les figures 1 et 5,.FIG. 7 is a presentation of the device and system according to the section VII-VII 'partial of Figure 6 and in the same view as the figures 1 and 5 ,.

D'une manière connue, le dispositif antichute pour fermeture à déplacement vertical comporte un arbre fixe 8, au moins un flasque 71, tournant par rapport à cet arbre 8 et dont la rotation assure le déplacement vertical de la fermeture et un moyen de compensation 6 du poids de celle-ci par action sur ledit flasque : comme indiqué précédemment, dans l'exemple du mode de réalisation décrit ci-après, le moyen de compensation est un ressort à lame enroulé sur elle-même et dont l'extrémité inférieure est fixée à l'arbre fixe 8 et l'extrémité extérieure est solidaire d'une boíte à ressort 7 et ladite fermeture est un tablier à lamelles parallèles aptes à s'enrouler autour de ladite boíte à ressort 7 sur lequel elle est fixée par différentes pattes 14. In a known manner, the fall arrest device for vertical displacement closure comprises a fixed shaft 8, at least one flange 7 1 , rotating relative to this shaft 8 and whose rotation ensures the vertical displacement of the closure and a compensation means 6 of the weight thereof by action on said flange: as indicated previously, in the example of the embodiment described below, the compensation means is a leaf spring wound on itself and whose lower end is fixed to the fixed shaft 8 and the outer end is secured to a spring box 7 and said closure is an apron with parallel strips capable of being wound around said spring box 7 on which it is fixed by different legs 14.

Le dispositif antichute comprend également d'une manière connue une roue crantée 2 solidaire de l'arbre 8 et un verrou basculant entraíné en rotation par ledit flasque 71 et apte à coopérer avec au moins un cran 23 de ladite roue crantée 2 et à bloquer la rotation du flasque 71 pour éviter la descente de ladite fermeture, tel que décrit ci-après et représenté en particulier sur la figure 4.The fall prevention device also comprises, in a known manner, a toothed wheel 2 secured to the shaft 8 and a rocking latch rotated by said flange 7 1 and able to cooperate with at least one notch 23 of said toothed wheel 2 and to be blocked the rotation of the flange 7 1 to avoid the descent of said closure, as described below and shown in particular in FIG. 4.

Selon la présente invention, ledit verrou basculant 1, tel qu'on peut le voir sur les figures 1, 5 et 7, comporte un doigt dont au moins un bord latéral 11 de l'extrémité est biseauté suivant sur un plan sécant avec le cylindre enveloppe de ladite roue crantée 2, qui est de même axe que l'arbre fixe 8 : lequel doigt est monté mobile latéralement par rapport à la roue crantée 2 suivant une course lui permettant au moins d'échapper audit cran 23, tel que représenté sur les figures 5 et 7, et ledit plan sécant est incliné bien entendu dans le sens du déplacement latéral du verrou 1, en coupant également l'axe support 10 de celui-ci du côté où le verrou doit échapper au cran 23 par rapport à la roue 2.According to the present invention, said rocker lock 1, as can be see in Figures 1, 5 and 7, has a finger with at least one edge lateral 11 of the end is beveled along a secant plane with the cylinder envelope of said toothed wheel 2, which is on the same axis as the shaft fixed 8: which finger is mounted movable laterally relative to the wheel notched 2 following a race allowing it at least to escape said notch 23, as shown in FIGS. 5 and 7, and said intersecting plane is inclined of course in the direction of lateral movement of the latch 1, by cutting also the support axis 10 thereof on the side where the lock must escape the notch 23 relative to wheel 2.

Pour permettre un tel déplacement de ce doigt, ledit verrou 1 comporte une articulation autour de l'axe support 10 fixé sur ledit flasque 71, laquelle articulation comprend un premier orifice venant buter contre un épaulement 17 dudit axe et un deuxième orifice 15 oblong situé du même côté que le bord latéral 11 biseauté du doigt de blocage et apte à assurer ledit déplacement latéral de celui-ci ; ce déplacement doit permettre au verrou 1 d'échapper au moins au cran 23 dans lequel il serait bloqué suite par exemple à la rupture du ressort de compensation 6, par pivotement du verrou autour du premier orifice et perpendiculairement à l'axe support 10. Dans d'autres modes de réalisation, c'est l'ensemble du verrou qui pourrait se déplacer parallèlement audit axe support 10.To allow such movement of this finger, said latch 1 comprises an articulation around the support axis 10 fixed on said flange 7 1 , which articulation comprises a first orifice abutting against a shoulder 17 of said axis and a second oblong orifice 15 located on the same side as the bevelled side edge 11 of the locking finger and capable of ensuring said lateral movement thereof; this movement must allow the lock 1 to escape at least the notch 23 in which it would be blocked following for example the rupture of the compensation spring 6, by pivoting the lock around the first orifice and perpendicular to the support axis 10. In in other embodiments, it is the whole of the lock which could move parallel to said support axis 10.

Ledit verrou 1 peut être de forme en "U", dont un côté de la base forme le doigt avec son extrémité biseautée 11 et les ailes du "U" portent lesdits orifices d'articulation, celle correspondant à l'orifice oblong 15 étant courbée pour permettre son pivotement contre par une rondelle 16 fixée sur l'axe de support 17, et maintenant le verrou sur celui-ci ; cette même aile latérale du "U" étant également interrompue du côté du doigt 11 pour permettre le basculement dudit verrou de blocage vers la roue crantée 2. Said lock 1 can be "U" shaped, one side of the base forms the finger with its beveled end 11 and the wings of the "U" bear said articulation orifices, that corresponding to the oblong orifice 15 being curved to allow its pivoting against by a washer 16 fixed on the support pin 17, and now the lock thereon; that same wing side of the "U" being also interrupted on the side of finger 11 to allow the tilting of said locking bolt towards the toothed wheel 2.

En effet, ledit doigt 11 est monté basculant autour dudit axe 10 entre :

  • une position d'attente représentée sur la figure 2, par appui de son extrémité contre une butée 13 solidaire d'un deuxième flasque 32 mobile en rotation par rapport à celui 71 constituant en fait dans le mode de réalisation décrit une paroi latérale de la boíte à ressort 7 assurant le déplacement vertical de la fermeture, et intermédiaire avec le moyen de compensation 6 auquel le flasque 32 est relié,
  • et au moins une position de blocage telle que représentée sur la figure 4 par appui de son extrémité dans un desdits crans 23 de la roue crantée 2, ledit basculement du doigt 11 étant assuré par un dispositif élastique de rappel 4 quand la butée 13 est effacée, ce qui se produit quand le ressort de compensation 6 n'est plus apte à assurer sa fonction relâchant alors sa poussée sur le flasque 32 intermédiaire tel que décrit ci-après.
In fact, said finger 11 is mounted tilting around said axis 10 between:
  • a waiting position shown in Figure 2, by pressing its end against a stop 13 secured to a second flange 3 2 movable in rotation relative to that 7 1 constituting in fact in the embodiment described a side wall the spring box 7 ensuring the vertical displacement of the closure, and intermediate with the compensation means 6 to which the flange 3 2 is connected,
  • and at least one locking position as shown in FIG. 4 by pressing its end into one of said notches 23 of the toothed wheel 2, said tilting of the finger 11 being ensured by an elastic return device 4 when the stop 13 is cleared , which occurs when the compensating spring 6 is no longer able to perform its function then releasing its thrust on the intermediate flange 3 2 as described below.

Ledit dispositif de rappel 4 peut être un ressort à spirale assurant également le rappel du verrou 1 dans son déplacement latéral pour tendre à ramener toujours l'extrémité 11 du doigt de verrouillage vers la roue crantée 2.Said return device 4 can be a spiral spring ensuring also the reminder of latch 1 in its lateral movement to tend to always bring the end 11 of the locking finger towards the toothed wheel 2.

Les deuxdits flasques tournants 71,32 sont accouplés par des moyens de liaison 20, tels que des rivets fixés sur un des flasques et coulissant dans des lumières 19 oblongues réalisées dans le second flasque, d'une part autorisant un décalage angulaire entre eux apte à effacer ladite butée 13 de l'extrémité du verrou 1 basculant et d'autre part assurant leur entraínement réciproque de l'un par l'autre, (soit dans le sens de la descente du tablier de fermeture, figurée par le signe - sur les figures ou dans le sens de la montée figurée par le signe +).The two said rotating flanges 7 1 , 3 2 are coupled by connecting means 20, such as rivets fixed on one of the flanges and sliding in oblong slots 19 made in the second flange, on the one hand allowing an angular offset between them able to erase said stop 13 from the end of the tilting latch 1 and on the other hand ensuring their reciprocal drive from one to the other, (either in the direction of the descent of the closing apron, represented by the sign - in the figures or in the direction of the climb represented by the + sign).

Quand le ressort ou autre moyen de compensation 6 assure son rôle d'équilibre du poids du tablier de fermeture, le verrou 1 est toujours empêché de basculer grâce à la butée 13, les deuxdits flasques tournants 71,32 étant reliés par ailleurs par un moyen élastique 5 de rappel tendant à s'opposer audit mouvement du moyen de compensation 6 sur le flasque 32 intermédiaire : ainsi, quand ledit moyen de compensation 6 n'assure plus sa fonction, ledit moyen élastique 5 est apte à faire tourner lesdits flasques l'un par rapport à l'autre dans le sens opposé à celui d'entraínement par le moyen de compensation, ce qui a pour effet d'effacer ladite butée 13 par rapport à l'extrémité du doigt du verrou 1, celui-ci venant se bloquer dans un cran 23 de la roue crantée 2, empêchant la rotation dans le sens de la fermeture - du tablier.When the spring or other compensating means 6 assumes its role of balancing the weight of the closing apron, the latch 1 is always prevented from tilting by means of the stop 13, the two said rotating flanges 7 1 , 3 2 being also connected by an elastic return means 5 tending to oppose said movement of the compensation means 6 on the intermediate flange 3 2 : thus, when said compensation means 6 no longer performs its function, said elastic means 5 is able to rotate said flanges relative to each other in the opposite direction to that driven by the compensation means, which has the effect of erasing said stop 13 relative to the end of the finger of the lock 1, this ci coming to lock in a notch 23 of the toothed wheel 2, preventing rotation in the closing direction - of the deck.

Afin d'éviter un blocage de la boíte à ressorts 7 par le ressort de compensation 6 qui viendrait s'y appuyer, empêchant alors la rotation relative des flasques 71,32, ledit ressort à lame 6 est enfermé dans au moins une cloche 3, qui peut être en une ou deux parties, couvrant son extrémité extérieure qui y est fixée et dont le flasque 32 mobile en rotation par rapport à celui 71 de la boíte à ressorts proprement dite extérieure 7 constitue une paroi latérale, ladite cloche 3 étant elle-même située à l'intérieur de ladite boite à ressorts 7, comme représenté sur la figure 3. La boíte à ressorts extérieure 7 est donc mobile en rotation autour de l'arbre support 8, grâce à des roulements 9, et est guidée en position axiale sur cet arbre grâce à une platine de guidage 18 enserrant la roue crantée 2 autour de laquelle elle peut tourner librement.To avoid blockage of the spring box 7 by the compensating spring 6 which would come to rest thereon, then preventing the relative rotation of the flanges 7 1 , 3 2 , said leaf spring 6 is enclosed in at least one bell 3, which may be in one or two parts, covering its outer end which is fixed thereto and whose flange 3 2 movable in rotation relative to that 7 1 of the actual external spring box 7 constitutes a side wall, said bell 3 being itself located inside said spring box 7, as shown in FIG. 3. The external spring box 7 is therefore mobile in rotation around the support shaft 8, thanks to bearings 9, and is guided in axial position on this shaft by means of a guide plate 18 enclosing the toothed wheel 2 around which it can rotate freely.

La roue crantée 2 est fixée sur ledit arbre 8 par tout moyen, tel qu'un boulon traversant 12 et la cloche intérieure 3 est fixée à l'intérieur de la boíte à ressorts 7 par lesdits moyens de liaison 20 et porte ladite butée 13 qui peut être réalisée par simple pliage d'une de ses parois formant le flasque 32.The toothed wheel 2 is fixed on said shaft 8 by any means, such as a through bolt 12 and the inner bell 3 is fixed inside the spring box 7 by said connecting means 20 and carries said stop 13 which can be made by simply folding one of its walls forming the flange 3 2 .

Comme représenté sur la figure 3, l'ensemble du dispositif antichute comprenant ladite roue crantée 2, le verrou basculant 1 avec son axe support 10 et son ressort de rappel 4, et la butée 13 sont placés à l'extérieur de la boíte à ressorts et dans le cas où il est installé à une extrémité du tablier de fermeture, de l'autre côté de la boíte 7 par rapport à celui-ci.As shown in Figure 3, the entire fall arrest system comprising said toothed wheel 2, the rocking latch 1 with its support axis 10 and its return spring 4, and the stop 13 are placed outside the spring box and in case it is installed at one end of the apron of closure, on the other side of the box 7 relative to it.

Selon la présente invention, la roue crantée 2 comprend par ailleurs au moins deux couronnes dont la première comporte lesdits crans 23 de blocage en rotation de la fermeture et la deuxième, placée latéralement par rapport à la première dans le sens du déplacement latéral du doigt 11, comporte au moins une came 22 dont la face 241 contre laquelle peut venir s'appuyer le bord latéral 11 en biseau de l'extrémité du doigt 11 est apte à faire échapper celui-ci complètement de la roue crantée 2 dans le sens de la remontée de la fermeture, et dont l'autre face 242 est apte à prendre en appui l'extrémité de ce doigt 11 et est profilée suivant une pente ramenant ladite extrémité 11 en face d'un cran 23 de blocage dans le sens de la descente de la fermeture, la distance entre deux positions de cames 22 successives étant au moins égale à celle séparant deux crans 23.According to the present invention, the toothed wheel 2 further comprises at at least two crowns, the first of which comprises said locking notches 23 in rotation of the closure and the second, placed laterally with respect to the first in the direction of lateral movement of the finger 11, comprises at less a cam 22 whose face 241 against which can come to bear the lateral edge 11 at the bevel of the end of the finger 11 is capable of escaping this completely from the notched wheel 2 in the direction of the ascent of the closure, and the other face 242 of which is capable of bearing the end of this finger 11 and is profiled along a slope bringing said end 11 back into face of a locking notch 23 in the direction of descent of the closure, the distance between two successive cam positions 22 being at least equal to the one separating two notches 23.

Le basculement du verrou 1 autour de son axe de support 10 est limité par tout moyen, tel qu'une butée portée par la platine 18 ou le flasque 71, ou un épaulement circulaire formant une troisième couronne disposée latéralement afin que l'extrémité du doigt 11, quand celui-ci est entièrement dégagé de la roue crantée 2 dans le sens de la montée du tablier de fermeture,( tel que représenté dans la figure 5), revienne ensuite, quand on redescend le tablier de fermeture, prendre appui sur une face 242 d'une came 22 comme représenté sur la figure 6. Lesdites cames 22 ayant la même hauteur que les dents 21 de la roue crantée, le doigt du verrou 1 est ramené ainsi, dans le sens de la descente du tablier de fermeture, vers un cran 23 de la roue crantée 21 où il se bloque en immobilisant l'ensemble, après avoir permis cependant de dérouler ledit tablier d'au moins un cran supplémentaire par rapport à la position de blocage précédente.The tilting of the latch 1 around its support axis 10 is limited by any means, such as a stop carried by the plate 18 or the flange 7 1 , or a circular shoulder forming a third crown disposed laterally so that the end of the finger 11, when the latter is completely disengaged from the toothed wheel 2 in the direction of the ascent of the closing apron, (as represented in FIG. 5), then returns, when the descending of the closing apron, take support on one face 24 2 of a cam 22 as shown in FIG. 6. Said cams 22 having the same height as the teeth 21 of the toothed wheel, the finger of the latch 1 is thus brought back, in the direction of descent of the apron of closing, towards a notch 23 of the toothed wheel 2 1 where it is blocked by immobilizing the assembly, after having however enabled the said apron to be unrolled by at least one additional notch compared to the previous locking position.

Claims (8)

Dispositif antichute pour fermeture à déplacement vertical comportant un arbre fixe (8), au moins un flasque (71) tournant par rapport à cet arbre (8) et dont la rotation assure le déplacement vertical de la fermeture, et un moyen de compensation (6) du poids de la fermeture par action sur ledit flasque (71), lequel dispositif antichute comprend une roue crantée (2) solidaire de l'arbre (8) et un verrou basculant (1) entraíné en rotation par ledit flasque (71) et apte à coopérer avec au moins un cran (23) de ladite roue crantée (2) et à bloquer la rotation du flasque (71) pour éviter la descente de ladite fermeture, caractérisé en ce que ledit verrou basculant (1) comporte un doigt dont au moins un bord latéral (11) de l'extrémité est biseauté suivant un plan sécant avec le cylindre enveloppe de ladite roue crantée (2), lequel doigt est monté mobile latéralement par rapport à celle-ci suivant une course lui permettant au moins d'échapper audit cran (23).Fall protection device for vertical displacement closure comprising a fixed shaft (8), at least one flange (7 1 ) rotating relative to this shaft (8) and whose rotation ensures the vertical displacement of the closure, and a compensation means ( 6) the weight of the closure by action on said flange (7 1 ), which fall prevention device comprises a toothed wheel (2) integral with the shaft (8) and a rocking latch (1) rotated by said flange (7 1 ) and able to cooperate with at least one notch (23) of said toothed wheel (2) and to block the rotation of the flange (7 1 ) to prevent the descent of said closure, characterized in that said rocking latch (1) comprises a finger of which at least one lateral edge (11) of the end is bevelled along a plane intersecting with the envelope cylinder of said toothed wheel (2), which finger is mounted movable laterally relative to the latter in a race allowing at least to escape said notch (23). Dispositif antichute suivant la revendication 1, caractérisé en ce que la roue crantée (2) comprend au moins deux couronnes dont la première comporte lesdits crans (23) de blocage en rotation de la fermeture et la deuxième, placée latéralement par rapport à la première dans le sens du déplacement latéral du doigt (11), comporte au moins une came (22) dont la face (241) contre laquelle peut venir s'appuyer le bord latéral (11) en biseau de l'extrémité du doigt (11) est apte à faire échapper celui-ci complètement de la roue crantée (2) dans le sens de la remontée de la fermeture, et dont l'autre face (242) est apte à prendre en appui l'extrémité de ce doigt (11) et est profilée suivant une pente ramenant ladite extrémité (11) en face d'un cran (23) de blocage dans le sens de la descente de la fermeture, la distance entre deux positions de cames (22) successives étant au moins égale à celle séparant deux crans (23).Fall protection device according to claim 1, characterized in that the toothed wheel (2) comprises at least two crowns, the first of which comprises said notches (23) for blocking the closure in rotation and the second, placed laterally with respect to the first in the direction of lateral movement of the finger (11), comprises at least one cam (22), the face (24 1 ) of which can bear the lateral edge (11) bevelled at the end of the finger (11) is capable of making it escape completely from the toothed wheel (2) in the direction of the ascent of the closure, and the other face (24 2 ) of which is capable of bearing on the end of this finger (11 ) and is profiled along a slope bringing said end (11) opposite a locking notch (23) in the direction of descent of the closure, the distance between two successive cam positions (22) being at least equal to that separating two notches (23). Dispositif antichute suivant l'une quelconque des revendications 1 ou 2, caractérisé en ce que ledit verrou (1) comporte une articulation autour d'un axe support (10), laquelle articulation comprend un premier orifice venant buter contre un épaulement (17) dudit axe, et un deuxième orifice (15) oblong situé du même côté que le bord latéral (11) biseauté du doigt de blocage et apte à permettre ledit déplacement latéral de celui-ci pour échapper au moins audit cran (23) par pivotement du verrou autour du premier orifice et perpendiculairement à l'axe support (10).Fall protection device according to any one of the claims 1 or 2, characterized in that said lock (1) has a hinge about a support axis (10), which articulation comprises a first orifice abutting against a shoulder (17) of said axis, and a second oblong orifice (15) located on the same side as the bevelled side edge (11) of the locking finger and able to allow said lateral movement thereof to escape at least said notch (23) by pivoting the lock around the first orifice and perpendicular to the support axis (10). Dispositif antichute suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que ledit doigt (11) est monté basculant entre une position d'attente par appui de son extrémité contre une butée (13) solidaire d'un flasque (32) mobile en rotation par rapport à celui (71), assurant le déplacement vertical de la fermeture, et intermédiaire avec le moyen de compensation (6) auquel le flasque (32) est relié, et au moins une position de blocage par appui de son extrémité dans un desdits crans (23) de la roue crantée (2), ledit basculement du doigt (11) étant assuré par un dispositif élastique de rappel (4), quand la butée (13) est effacée.Fall protection device according to any one of Claims 1 to 3, characterized in that the said finger (11) is mounted to pivot between a waiting position by pressing its end against a stop (13) secured to a flange (3 2 ) movable in rotation relative to that (7 1 ), ensuring the vertical displacement of the closure, and intermediate with the compensation means (6) to which the flange (3 2 ) is connected, and at least one locking position by pressing from its end in one of said notches (23) of the toothed wheel (2), said tilting of the finger (11) being ensured by an elastic return device (4), when the stop (13) is cleared. Dispositif antichute suivant la revendication 4, caractérisé en ce que les deux flasques tournants (71,32) sont accouplés par des moyens de liaison (20) d'une part autorisant un décalage angulaire entre eux apte à effacer la butée (13) de l'extrémité du verrou (1) basculant, et d'autre part assurant leur entraínement réciproque de l'un par l'autre.Fall protection device according to claim 4, characterized in that the two rotating flanges (7 1 , 3 2 ) are coupled by connecting means (20) on the one hand allowing an angular offset between them capable of erasing the stop (13) the end of the latch (1) tilting, and secondly ensuring their reciprocal drive from one to the other. Dispositif antichute suivant l'une quelconque des revendications 4 ou 5, caractérisé en ce que les deux dits flasques tournants (71, 32) sont reliés par un moyen élastique (5) de rappel tendant à s'opposer au mouvement d'entraínement du moyen de compensation (6) sur le flasque (32) intermédiaire, et apte à faire tourner lesdits flasques l'un par rapport à l'autre pour effacer ladite butée (13) quand le moyen de compensation (6) n'assure plus sa fonction.Fall protection device according to any one of claims 4 or 5, characterized in that the two so-called rotating flanges (7 1 , 3 2 ) are connected by an elastic return means (5) tending to oppose the drive movement compensation means (6) on the intermediate flange (3 2 ), and able to rotate said flanges relative to each other to erase said stop (13) when the compensation means (6) does not provide plus its function. Dispositif antichute suivant l'une quelconque des revendications 1 à 6 et dans lequel le moyen de compensation (6) est un ressort à lame enroulée sur elle-même et dont l'extrémité inférieure est fixée audit axe fixe (8) et l'extrémité extérieure est solidaire d'une boíte à ressort (7), caractérisé en ce que le flasque (71) constitue une paroi latérale de cette boíte à ressort (7), ladite roue crantée (2) et le verrou basculant (1) étant placés à l'extérieur de celle-ci.Fall protection device according to any one of Claims 1 to 6 and in which the compensation means (6) is a leaf spring wound on itself and the lower end of which is fixed to said fixed axis (8) and the end outer is integral with a spring box (7), characterized in that the flange (7 1 ) constitutes a side wall of this spring box (7), said toothed wheel (2) and the tilting latch (1) being placed outside of it. Dispositif antichute suivant la revendication 7 et l'une des revendications 4 à 6 caractérisé en ce que le ressort à lame (6) est enfermé dans au moins une cloche (3) couvrant son extrémité extérieure qui y est fixée et dont le flasque (32) mobile en rotation par rapport à celui (71) de la boíte à ressort (7) constitue une paroi latérale, ladite cloche (3) étant elle-même située à l'intérieur de ladite boíte à ressort (7).Fall protection device according to claim 7 and one of claims 4 to 6 characterized in that the leaf spring (6) is enclosed in at least one bell (3) covering its outer end which is fixed thereto and the flange (3 2 ) movable in rotation relative to that (7 1 ) of the spring box (7) constitutes a side wall, said bell (3) being itself located inside said spring box (7).
EP00430004A 1999-02-19 2000-02-09 Fall protection device for a vertically movable closure Expired - Lifetime EP1030028B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9902268A FR2790033B1 (en) 1999-02-19 1999-02-19 FALL PROTECTION DEVICE FOR VERTICALLY MOVING CLOSURE
FR9902268 1999-02-19

Publications (2)

Publication Number Publication Date
EP1030028A1 true EP1030028A1 (en) 2000-08-23
EP1030028B1 EP1030028B1 (en) 2004-04-21

Family

ID=9542451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00430004A Expired - Lifetime EP1030028B1 (en) 1999-02-19 2000-02-09 Fall protection device for a vertically movable closure

Country Status (6)

Country Link
EP (1) EP1030028B1 (en)
AT (1) ATE264987T1 (en)
DE (1) DE60009970D1 (en)
ES (1) ES2219284T3 (en)
FR (1) FR2790033B1 (en)
PT (1) PT1030028E (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871841A1 (en) * 2004-06-22 2005-12-23 Bmj Sarl Shutter fall prevention device for e.g. industrial plant, has locking unit with flap cooperating with notch of static part during failure of compensation spring, where notch is associated with unlocking unit of flap in descent direction
FR2875838A1 (en) * 2004-09-30 2006-03-31 Profilmar Sa Spring box for vertically displaceable rolling shutter, has snap fastener blocking rotation of outer flange during breaking of spring whose curved end is enclosed by prongs in slits arranged in rims of inner flanges
FR2919013A1 (en) * 2007-07-20 2009-01-23 Profilmar Sa VERTICAL DISPLACEMENT ROLLER SAFETY DEVICE FAN SPRING BOX PROVIDED WITH SAFETY, AND CORRESPONDING SAFETY ELEMENTS.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7254868B2 (en) 2004-12-27 2007-08-14 Wayne-Dalton Corp. winding and anti-drop assembly for door counterbalance system
FR2897096B1 (en) * 2006-02-06 2008-03-14 Profilmar Sa VERTICAL DISPLACEMENT ROLLING DEVICE FAN SPRING HOUSING.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388602A (en) *
US3842892A (en) * 1973-07-27 1974-10-22 Rcm Corp Rolling door operating mechanism
DE9310792U1 (en) * 1993-07-19 1994-05-19 Hörmann KG Brockhagen, 33803 Steinhagen Spring monitoring device
FR2739656A1 (en) * 1995-10-09 1997-04-11 Tournier Gerard DEVICE FOR ACTUATING A WINDOW CLOSURE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2756319B1 (en) 1996-11-28 1999-05-21 Javey Michel FALL PROTECTION DEVICE FOR VERTICALLY CLEARING CLOSURES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE388602A (en) *
US3842892A (en) * 1973-07-27 1974-10-22 Rcm Corp Rolling door operating mechanism
DE9310792U1 (en) * 1993-07-19 1994-05-19 Hörmann KG Brockhagen, 33803 Steinhagen Spring monitoring device
FR2739656A1 (en) * 1995-10-09 1997-04-11 Tournier Gerard DEVICE FOR ACTUATING A WINDOW CLOSURE
EP0768445A1 (en) * 1995-10-09 1997-04-16 Gérard Tournier Rolling closure device with fixed shaft and counterbalance spring

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2871841A1 (en) * 2004-06-22 2005-12-23 Bmj Sarl Shutter fall prevention device for e.g. industrial plant, has locking unit with flap cooperating with notch of static part during failure of compensation spring, where notch is associated with unlocking unit of flap in descent direction
EP1609940A1 (en) * 2004-06-22 2005-12-28 Michel Javey Anti-fall device for roll-type closure
FR2875838A1 (en) * 2004-09-30 2006-03-31 Profilmar Sa Spring box for vertically displaceable rolling shutter, has snap fastener blocking rotation of outer flange during breaking of spring whose curved end is enclosed by prongs in slits arranged in rims of inner flanges
FR2919013A1 (en) * 2007-07-20 2009-01-23 Profilmar Sa VERTICAL DISPLACEMENT ROLLER SAFETY DEVICE FAN SPRING BOX PROVIDED WITH SAFETY, 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
DE60009970D1 (en) 2004-05-27
ATE264987T1 (en) 2004-05-15
FR2790033A1 (en) 2000-08-25
FR2790033B1 (en) 2001-06-08
EP1030028B1 (en) 2004-04-21
PT1030028E (en) 2004-08-31
ES2219284T3 (en) 2004-12-01

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