EP0737794A1 - Improvements to rollable closing devices - Google Patents

Improvements to rollable closing devices Download PDF

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Publication number
EP0737794A1
EP0737794A1 EP96420121A EP96420121A EP0737794A1 EP 0737794 A1 EP0737794 A1 EP 0737794A1 EP 96420121 A EP96420121 A EP 96420121A EP 96420121 A EP96420121 A EP 96420121A EP 0737794 A1 EP0737794 A1 EP 0737794A1
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EP
European Patent Office
Prior art keywords
blades
deck
shafts
different
series
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP96420121A
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German (de)
French (fr)
Inventor
Pierre Decrane
Bernard Roy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aluroy
Original Assignee
Aluroy
Simu SAS
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Filing date
Publication date
Application filed by Aluroy, Simu SAS filed Critical Aluroy
Publication of EP0737794A1 publication Critical patent/EP0737794A1/en
Withdrawn legal-status Critical Current

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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
    • E06B9/58—Guiding devices
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/17—Parts or details of roller shutters, e.g. suspension devices, shutter boxes, wicket doors, ventilation openings
    • E06B9/174—Bearings specially adapted therefor
    • 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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1577—Slat end pieces used for guiding shutter
    • E06B2009/1588—Slat end pieces used for guiding shutter inserted in engaging section of adjacent slats

Definitions

  • the present relates to blinds, roller shutters and other closing devices comprising a deformable apron suitable for emptying on a winding drum actuated in rotation by an operating mechanism.
  • the invention is based on the observation that the descent malfunctions which we encounter in practice in the case of drums with two idling shafts are due to the friction effect which appears between the layers or turns of blades wound contiguously on the drum, so that the invention essentially consists in making the closure device comprise separation means capable of avoiding any contact between the abovementioned layers or turns.
  • the above-mentioned separation means can be presented in different embodiments.
  • One can in particular mount on the ends of each of the two superimposed shafts of stepped pulleys whose flanges of different diameters form selectively supports for the ends of the apron blades or for end pieces integral with said ends, these blades or end pieces being established in series at different lengths.
  • rollers of different diameters at the ends of the blades suitable for cooperating, series by series, with independent tracks of the same diameter carried by the ends of the two superimposed shafts.
  • Figure 1 is a schematic perspective view illustrating the general arrangement of a blind with hinged slats established in accordance with the invention.
  • Figure 2 is a cross section on a larger scale showing the winding drum of the blind according to Figure 1 in the fully open position of the deck.
  • Figure 3 is a vertical section along the plane indicated in III-III in Figure 2; in this figure, the section plane of FIG. 2 is shown in II-II.
  • Figure 4, 5 and 6 are detail sections showing the lateral guidance of the different blades of the blind.
  • FIG. 7 shows an alternative embodiment of the invention.
  • Figure 8, 9 and 10 schematically show the guiding of the blades in the variant according to Figure 7.
  • FIG. 11 illustrates another alternative embodiment.
  • the closure device shown in FIG. 1 is formed by a blind, the apron 1 of which is constituted, in the manner known per se, by a series of horizontal blades 10, joined to each other by their horizontal edges using an articulated system which leaves them free to orient themselves differently in a vertical plane.
  • the drum intended for the emptying of this deck 1 is constituted by two horizontal shafts 2 and 3 supported by a fixed frame (not shown) so as to be arranged one below the 'other along the vertical axis of said deck 1.
  • On the lower shaft 2 is fixed one end of two cables 4 which, after a few turns wound on said shaft 2, rise vertically to pass over the 'upper shaft 3, descend to be returned by the shaft 2, and climb again to pass over the shaft 3 which returns them towards the upper edge of the deck 1, the free end of each cable 4 being finally stowed to the upper blade 10 of said apron.
  • the lower shaft 2 is associated with a rotary operating mechanism which, in the case envisaged, is formed by an electric gear motor 5. It is understood that when that is put into operation in the proper direction of rotation, the winding cables 4 on the lower shaft 2 causes the corresponding decking 1 to be fed together, the blades 10 of the latter being forced to follow the path of said cables and to wind successively on the two shafts 2 and 3, which thus constitute the apron winding drum.
  • the connection between the two shafts 2 and 3 is effected by means of the two cables 4 which, by sliding, allow the upper shaft 3 to rotate at a speed slightly different from that of the shaft 2, while being driven by friction to somehow accompany the apron 1.
  • this "sliding" angular connection mode formed between the two shafts 2 and 3 is capable of being replaced by any other suitable system, in particular by a torque limiting mechanism.
  • the present invention provides for the device to include separation means capable of avoiding mutual contact between the layers or turns of the blades wound on the shafts.
  • each of the shafts 2 and 3 have two stepped pulleys 6 which are mounted idly on the envisaged shaft, while being retained axially in place in the vicinity from one end thereof; as more particularly shown in FIG. 3, each pulley 6 is in fact formed by three independent flanges 6 a , 6 b and 6 c whose diameters are increasing. Furthermore, there were fixed at the ends of the blades 10 of the deck 1 three types of end pieces 60, 61 and 62 which differ from each other by their length; as shown in FIG. 1, over a height d1 of the deck 1, the blades 10 are equipped with short end pieces 60, over a height d2 of middle end pieces 61 and over a height d3 of long end pieces 62.
  • Figures 4, 5 and 6 clearly show that whatever the length of their projecting part, the various end pieces 60, 61 and 62 are suitably guided by a spacer or perforated partition 70 provided in the two lateral slides 7 of the blind device.
  • FIGS. 8, 9 and 10 illustrate the lateral guidance of the vertical edges of the deck 1 using slides 9 with a stepped inner profile, suitable for providing three different raceways for the end rollers 80, 81 and 82.
  • the separation means instead of attaching tips 60, 61 and 62 to the ends of the blades 10, these are the blades which are directly established in series at different lengths so as to cooperate with the flanges of the stepped pulleys 6, as was schematically indicated in FIG. 11. In such a case it is of course essential that the blades 10 are stapled to each other to avoid any unwanted longitudinal movement and that the slides or slides 9 have a sufficient depth to guide the shortest blades 10.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)

Abstract

The shutter winding mechanism consists of two parallel shafts (2,3) situated above and in line with the shutter (1). One shaft (2) is connected to a drive (5) while the other (3), linked kinematically to the first, is able to turn freely at a slightly different speed to it. The mechanism is equipped with separators for the layers or coils of the shutter when they are wound onto the shafts, made in the form of stepped pulleys (6) with sections (6a-c) of different dia. on the shaft ends, and cylindrical tips (60-62) of different lengths which project from the ends of the shutter slats.

Description

La présente a trait aux stores, volets roulants et autres dispositifs de fermeture comprenant un tablier déformable propre à s'envider sur un tambour d'enroulement actionné en rotation par un mécanisme de manoeuvre.The present relates to blinds, roller shutters and other closing devices comprising a deformable apron suitable for emptying on a winding drum actuated in rotation by an operating mechanism.

On sait qu'en vue de diminuer l'encombrement présenté par le tambour lorsque le tablier se trouve à l'état enroulé sur celui-ci, on a proposé de constituer ledit tambour par deux arbres parallèles qui sont orientés transversalement en superposition substantiellement suivant l'axe du tablier. L'un de ces deux arbres est réuni au bord supérieur du tablier, tandis que l'autre est lié cinématiquement au premier arbre tout en étant libre de tourner à une vitesse légèrement différente, de façon à ce que lorsque ce premier arbre est entraîné par le mécanisme de manoeuvre, le tablier s'enroule simultanément sur les deux arbres superposés.We know that in order to reduce the bulk presented by the drum when the deck is in the wound state on it, it has been proposed to form said drum by two parallel shafts which are oriented transversely in superposition substantially along the 'axis of the deck. One of these two shafts is joined to the upper edge of the deck, while the other is kinematically linked to the first shaft while being free to rotate at a slightly different speed, so that when this first shaft is driven by the operating mechanism, the apron is wound simultaneously on the two superimposed shafts.

Les documents DE-A-34 33 846 (HORMANN KG), DE-A-25 25 600 (HART MANN & CIE) et CH-A-503 884 (GRIESSER) illustrent bien cette technique connue.Documents DE-A-34 33 846 (HORMANN KG), DE-A-25 25 600 (HART MANN & CIE) and CH-A-503 884 (GRIESSER) illustrate this well-known technique.

Les essais de réalisation se sont néanmoins révélés décevants, le déroulement du tablier (descente) par gravité sous l'effet de la barre de charge fixée au bord inférieur du tablier s'effectuant dans de mauvaises conditions, en donnant lieu à de fréquents dysfonctionnements que l'opérateur est amené à surmonter en exerçant lui-même un effort manuel de traction sur la partie basse du tablier.However, the implementation tests proved to be disappointing, the unfolding of the deck (descent) by gravity under the effect of the load bar attached to the lower edge of the deck being carried out in poor conditions, giving rise to frequent malfunctions that the operator is led to overcome by exerting himself a manual traction force on the lower part of the deck.

C'est à cet inconvénient pratique qu'entend remédier la présente invention, laquelle a pour objet le dispositif de fermeture à enroulement qui est défini à la revendication 1.It is this practical drawback that the present invention intends to remedy, which relates to the winding closure device which is defined in claim 1.

En fait l'invention se fonde sur l'observation que les dysfonctionnements à la descente auxquels on se heurte en pratique dans le cas des tambours à deux arbres d'envidage sont dûs à l'effet de friction qui apparaît entre les couches ou spires de lames enroulées de manière jointive sur le tambour, de sorte que l'invention consiste essentiellement à faire comporter au dispositif de fermeture des moyens de séparation aptes à éviter tout contact entre les couches ou spires précitées.In fact, the invention is based on the observation that the descent malfunctions which we encounter in practice in the case of drums with two idling shafts are due to the friction effect which appears between the layers or turns of blades wound contiguously on the drum, so that the invention essentially consists in making the closure device comprise separation means capable of avoiding any contact between the abovementioned layers or turns.

Les moyens de séparation sus-indiqués peuvent se présenter sous différentes formes de réalisation. On peut notamment monter sur les extrémités de chacun des deux arbres superposés des poulies étagées dont les flasques de diamètres différents forment sélectivement appuis pour les extrémités des lames du tablier ou pour des embouts solidaires desdites extrémités, ces lames ou embouts étant établis par séries à des longueurs différentes.The above-mentioned separation means can be presented in different embodiments. One can in particular mount on the ends of each of the two superimposed shafts of stepped pulleys whose flanges of different diameters form selectively supports for the ends of the apron blades or for end pieces integral with said ends, these blades or end pieces being established in series at different lengths.

Un résultat équivalent est obtenu en faisant comporter aux extrémités des lames des galets de diamètres différents, propres à coopérer, série par série, avec des pistes indépendantes de même diamètre portées par les extrémités des deux arbres superposés.An equivalent result is obtained by having rollers of different diameters at the ends of the blades, suitable for cooperating, series by series, with independent tracks of the same diameter carried by the ends of the two superimposed shafts.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing:

Figure 1 est une vue schématique en perspective illustrant l'agencement général d'un store à lames articulées établi conformément à l'invention.Figure 1 is a schematic perspective view illustrating the general arrangement of a blind with hinged slats established in accordance with the invention.

Figure 2 est une coupe transversale à plus grande échelle montrant le tambour d'enroulement du store suivant figure 1 à la position d'ouverture totale du tablier.Figure 2 is a cross section on a larger scale showing the winding drum of the blind according to Figure 1 in the fully open position of the deck.

Figure 3 est une coupe verticale suivant le plan indiqué en III-III en figure 2 ; sur cette figure, on a fait apparaître en II-II le plan de coupe de figure 2.Figure 3 is a vertical section along the plane indicated in III-III in Figure 2; in this figure, the section plane of FIG. 2 is shown in II-II.

Figure 4, 5 et 6 sont des coupes de détail montrant le guidage latéral des différentes lames du store.Figure 4, 5 and 6 are detail sections showing the lateral guidance of the different blades of the blind.

Figure 7 représente une variante de mise en oeuvre de l'invention.Figure 7 shows an alternative embodiment of the invention.

Figure 8, 9 et 10 montrent schématiquement le guidage des lames dans la variante suivant figure 7.Figure 8, 9 and 10 schematically show the guiding of the blades in the variant according to Figure 7.

Figure 11 illustre une autre variante de réalisation.Figure 11 illustrates another alternative embodiment.

Le dispositif de fermeture représenté en figure 1 est formé par un store dont le tablier 1 est constitué, à la façon en soi connue, par une série de lames horizontales 10, assemblées les unes aux autres par leurs bords horizontaux à l'aide d'un système articulé qui les laisse libres de s'orienter différemment dans un plan vertical.The closure device shown in FIG. 1 is formed by a blind, the apron 1 of which is constituted, in the manner known per se, by a series of horizontal blades 10, joined to each other by their horizontal edges using an articulated system which leaves them free to orient themselves differently in a vertical plane.

A la façon en soi connue, le tambour destiné à l'envidage de ce tablier 1 est constitué par deux arbres horizontaux 2 et 3 supportés par un bâti fixe (non représenté) de façon à se trouver disposés l'un au-dessous de l'autre suivant l'axe vertical dudit tablier 1. Sur l'arbre inférieur 2 est fixée l'une des extrémités de deux câbles 4 qui, après quelques spires enroulées sur ledit arbre 2, s'élèvent à la verticale pour passer par dessus l'arbre supérieur 3, redescendre pour être renvoyés par l'arbre 2, et monter à nouveau pour passer par dessus l'arbre 3 qui les renvoie en direction du bord supérieur du tablier 1, l'extrémité libre de chaque câble 4 étant finalement arrimée à la lame supérieure 10 dudit tablier.In the manner known per se, the drum intended for the emptying of this deck 1 is constituted by two horizontal shafts 2 and 3 supported by a fixed frame (not shown) so as to be arranged one below the 'other along the vertical axis of said deck 1. On the lower shaft 2 is fixed one end of two cables 4 which, after a few turns wound on said shaft 2, rise vertically to pass over the 'upper shaft 3, descend to be returned by the shaft 2, and climb again to pass over the shaft 3 which returns them towards the upper edge of the deck 1, the free end of each cable 4 being finally stowed to the upper blade 10 of said apron.

A l'arbre inférieur 2 est associé un mécanisme de manoeuvre en rotation qui, dans le cas envisagé, est formé par un moto-réducteur électrique 5. On comprend que lorsque celui est mis en fonctionnement dans le sens de rotation convenable, l'envidage des câbles 4 sur l'arbre inférieur 2 provoque l'envidage correspondant du tablier 1, les lames 10 de celui-ci étant obligées de suivre le cheminement desdits câble et de s'enrouler successivement sur les deux arbres 2 et 3, lesquels constituent ainsi le tambour d'enroulement du tablier. La liaison entre les deux arbres 2 et 3 est opérée à l'aide des deux câbles 4 qui, par glissement, permettent à l'arbre supérieur 3 de tourner à une vitesse légèrement différente de celle de l'arbre 2, tout en étant entraîné par friction pour accompagner en quelque sorte le tablier 1.The lower shaft 2 is associated with a rotary operating mechanism which, in the case envisaged, is formed by an electric gear motor 5. It is understood that when that is put into operation in the proper direction of rotation, the winding cables 4 on the lower shaft 2 causes the corresponding decking 1 to be fed together, the blades 10 of the latter being forced to follow the path of said cables and to wind successively on the two shafts 2 and 3, which thus constitute the apron winding drum. The connection between the two shafts 2 and 3 is effected by means of the two cables 4 which, by sliding, allow the upper shaft 3 to rotate at a speed slightly different from that of the shaft 2, while being driven by friction to somehow accompany the apron 1.

Il va cependant de soi que ce mode de liaison angulaire "glissante" ménagé entre les deux arbres 2 et 3 est susceptible d'être remplacé par tout autre système approprié, notamment par un mécanisme limiteur de couple.It goes without saying, however, that this "sliding" angular connection mode formed between the two shafts 2 and 3 is capable of being replaced by any other suitable system, in particular by a torque limiting mechanism.

Il convient par ailleurs d'observer que si pour le déroulement du tablier (occultation de l'ouverture à laquelle le store est associé) le sens de rotation du moto-réducteur 5 est inversé, la descente dudit tablier 1 s'effectue sous l'effet du poids de la barre de la barre de charge 11 prévue à l'extrémité inférieure de ce tablier. L'effet de gravité se révèle fréquemment insuffisant pour assurer la descente dans le cas où les couches de lames enroulées sur les deux arbres 2 et 3 sont jointives, l'effet de friction étant alors trop élévé, et c'est pour remédier à cet inconvénient que la présente invention prévoit de faire comporter au dispositif des moyens de séparation aptes à éviter le contact mutuel des couches ou spires de lames enroulées sur les arbres.It should also be observed that if for the unwinding of the apron (concealment of the opening with which the blind is associated) the direction of rotation of the gear motor 5 is reversed, the descent of said apron 1 takes place under the effect of the weight of the bar of the load bar 11 provided at the lower end of this deck. The gravity effect frequently proves to be insufficient to ensure the descent in the case where the layers of blades wound on the two shafts 2 and 3 are contiguous, the friction effect then being too high, and this is to remedy this drawback that the present invention provides for the device to include separation means capable of avoiding mutual contact between the layers or turns of the blades wound on the shafts.

Dans le forme de réalisation envisagée en figures 1 à 6, le résultat désiré est obtenu en faisant comporter à chacun des arbres 2 et 3 deux poulies étagées 6 qui sont montées folles sur l'arbre envisagé, tout en étant retenues axialement en place au voisinage d'une des extrémités de celui-ci ; comme plus particulièrement montré en figure 3, chaque poulie 6 est en fait formée par trois flasques indépendants 6a, 6b et 6c dont les diamètres vont en croissant. Par ailleurs, on a fixé aux extrémités des lames 10 du tablier 1 trois types d'embouts 60, 61 et 62 qui diffèrent entre eux par leur longueur ; comme montré en figure 1, sur une hauteur d1 du tablier 1, les lames 10 sont équipées d'embouts courts 60, sur une hauteur d2 d'embouts moyens 61 et sur une hauteur d3 d'embouts longs 62.In the embodiment envisaged in FIGS. 1 to 6, the desired result is obtained by making each of the shafts 2 and 3 have two stepped pulleys 6 which are mounted idly on the envisaged shaft, while being retained axially in place in the vicinity from one end thereof; as more particularly shown in FIG. 3, each pulley 6 is in fact formed by three independent flanges 6 a , 6 b and 6 c whose diameters are increasing. Furthermore, there were fixed at the ends of the blades 10 of the deck 1 three types of end pieces 60, 61 and 62 which differ from each other by their length; as shown in FIG. 1, over a height d1 of the deck 1, the blades 10 are equipped with short end pieces 60, over a height d2 of middle end pieces 61 and over a height d3 of long end pieces 62.

Figures 4, 5 et 6 font bien apparaître que quelle que soit la longueur de leur partie dépassante, les différents embouts 60, 61 et 62 sont convenablement guidés par une entretoise ou cloison perforée 70 prévue dans les deux coulisses latérales 7 du dispositif de store.Figures 4, 5 and 6 clearly show that whatever the length of their projecting part, the various end pieces 60, 61 and 62 are suitably guided by a spacer or perforated partition 70 provided in the two lateral slides 7 of the blind device.

On conçoit qu'au cours de l'envidage du tablier 1 lors de la rotation des deux arbres 2 et 3, les embouts 60 viennent en premier lieu au contact des flasques 6a à petit diamètre des poulies étagées 6 ; puis ce sont des embouts 61 qui à leur tour prennent appui contre les flasques 6b, les embouts longs 62 venant en fin d'envidage porter contre les flasques 6c à grand diamètre, le tout comme montré en figure 2 et 3.It is understood that during the emptying of the deck 1 during the rotation of the two shafts 2 and 3, the end pieces 60 come first into contact with the flanges 6 a with small diameter of the stepped pulleys 6; then these are end pieces 61 which in turn bear against the flanges 6 b , the long end pieces 62 coming at the end of the laying action bear against the flanges 6 c with large diameter, all as shown in FIG. 2 and 3.

On conçoit que moyennant un dimensionnement convenable des embouts en épaisseur et un calcul exact du positonnement de ces embouts sur les lames 10 du tablier, on évite toute friction entre les couches de lames enroulées sur les deux arbres 2 et 3. Le déroulement du tablier 1 est ainsi susceptible d'être effectué sans heurt, de la même manière que dans les dispositifs de store classiques.It is understood that by means of a suitable dimensioning of the end pieces in thickness and an exact calculation of the positioning of these end pieces on the blades 10 of the deck, any friction between the layers of blades wound on the two shafts 2 and 3 is avoided. The course of the deck 1 is thus capable of being carried out smoothly, in the same way as in conventional blind devices.

Un résultat équivalent est obtenu en dotant les extrémités des lames 10 d'embouts établis par séries de longueurs différentes et pourvus de galets 80, 81 et 82 de diamètres différents (cf. figure 7), lesquels galets viennent rouler contre des pistes indépendantes 8a, 8b et 8c de même diamètre, montées folles à chacune des extrémités des arbres 2 et 3.An equivalent result is obtained by providing the ends of the blades 10 with end pieces established by series of different lengths and provided with rollers 80, 81 and 82 of different diameters (cf. FIG. 7), which rollers come to roll against independent tracks 8 a , 8 b and 8 c of the same diameter, mounted idly at each end of the shafts 2 and 3.

Figures 8, 9 et 10 illustrent le guidage latéral des bords verticaux du tablier 1 à l'aide de coulisses 9 à profil intérieur étagé, propres à offrir trois chemins de roulement différents aux galets terminaux 80, 81 et 82.FIGS. 8, 9 and 10 illustrate the lateral guidance of the vertical edges of the deck 1 using slides 9 with a stepped inner profile, suitable for providing three different raceways for the end rollers 80, 81 and 82.

On peut imaginer d'autres formes de réalisation pour les moyens de séparation. C'est ainsi qu'au lieu de rapporter des embouts 60, 61 et 62 aux extrémités des lames 10, de sont ces lames qui sont directement établies par séries à des longueurs différentes de façon à coopérer avec les flasques des poulies étagées 6, comme on l'a schématiquement indiqué en figure 11. En pareil cas il est bien entendu indispensable que les lames 10 soient agrafées les unes aux autres pour éviter tout déplacement longitudinal intempestif et que les glissières ou coulisses 9 présentent une profondeur suffisante pour assurer le guidage des lames 10 les plus courtes.One can imagine other embodiments for the separation means. So instead of attaching tips 60, 61 and 62 to the ends of the blades 10, these are the blades which are directly established in series at different lengths so as to cooperate with the flanges of the stepped pulleys 6, as was schematically indicated in FIG. 11. In such a case it is of course essential that the blades 10 are stapled to each other to avoid any unwanted longitudinal movement and that the slides or slides 9 have a sufficient depth to guide the shortest blades 10.

Claims (4)

Dispositif de fermeture à enroulement du type des stores, volets roulants et similaires, du genre dans lequel le tablier déformable (1) s'envide, sous l'effet d'un mécanisme de manoeuvre (5), sur un tambour d'enroulement formé par deux arbres parallèles (2 et 3) qui sont orientés transversalement en superposition substantiellement dans l'axe du tablier (1) et dont l'un (2), réuni au bord supérieur dudit tablier, est entraîné par le mécanisme de manoeuvre (5) tandis que l'autre (3) est lié cinématiquement au premier tout en étant libre de tourner à une vitesse de rotation légèrement différente, caractérisé en ce qu'il comprend des moyens de séparation aptes à éviter tout contact entre les couches ou spires successives du tablier (1) envidées sur l'un et l'autre des arbres (2 et 3) qui forment le tambour d'enroulement.Rolling closure device of the type of blinds, rolling shutters and the like, of the type in which the deformable apron (1) is emptied, under the effect of an operating mechanism (5), on a formed winding drum by two parallel shafts (2 and 3) which are oriented transversely in superposition substantially in the axis of the deck (1) and one of which (2), joined to the upper edge of said deck, is driven by the operating mechanism (5 ) while the other (3) is kinematically linked to the first while being free to rotate at a slightly different speed of rotation, characterized in that it comprises separation means capable of avoiding any contact between the successive layers or turns apron (1) envied on one and the other of the trees (2 and 3) which form the winding drum. Dispositif suivant la revendication 1, du genre dans lequel le tablier (1) est constitué par des lames articulées (10), caractérisé en ce que les moyens de séparation comprennent d'une part des embouts (60, 61, 62) qui présentent par séries des longueurs différentes et qui sont fixés aux extrémités des lames (10) de façon à dépasser de celles-ci, d'autre part des poulies étagées (6) montées folles aux extrémités des deux arbres (2 et 3) de façon à ce que leurs flasques de diamètres différents (6a, 6b, 6c) forment sélectivement appuis pour les séries d'embouts précitées.Device according to claim 1, of the kind in which the deck (1) consists of articulated blades (10), characterized in that the separation means comprise on the one hand end pieces (60, 61, 62) which have series of different lengths and which are fixed at the ends of the blades (10) so as to protrude therefrom, on the other hand stepped pulleys (6) mounted idly at the ends of the two shafts (2 and 3) so that their flanges of different diameters (6, 6b, 6c) form selectively support for the abovementioned endpieces series. Dispositif suivant la revendication 1, du genre dans lequel le tablier (1) est constitué par des lames articulées (10), caractérisé en ce que les moyens de séparation comprennent d'une part des galets de diamètres différents (80, 81, 82) montés à des positions axiales différentes en bout des lames (10), d'autre part des pistes indépendantes (8a, 8b, 8c) portées par les extrémités des arbres (2 et 3) pour former sélectivement appuis pour lesdits galets.Device according to claim 1, of the type in which the deck (1) is constituted by articulated blades (10), characterized in that the separation means comprise on the one hand rollers of different diameters (80, 81, 82) mounted at different axial positions at the end of the blades (10), on the other hand independent tracks (8 a , 8 b , 8 c ) carried by the ends of the shafts (2 and 3) to form selectively supports for said rollers. Dispositif suivant la revendication 1, du genre dns lequel le tablier (1) est constitué par des lames articulées (10), caractérisé en ce que les lames (10) sont établies par séries à des longueurs différentes afin que leurs extrémités coopèrent directement avec les flasques (6a, 6b, 6c) de diamètres différents de poulies étagées (6) montées folles aux extrémités des deux arbres (2 et 3).Device according to claim 1, of the kind in which the deck (1) consists of articulated blades (10), characterized in that the blades (10) are established in series at different lengths so that their ends cooperate directly with the flanges (6 a , 6 b , 6 c ) of different diameters of stepped pulleys (6) mounted idly at the ends of the two shafts (2 and 3).
EP96420121A 1995-04-14 1996-04-12 Improvements to rollable closing devices Withdrawn EP0737794A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9504762 1995-04-14
FR9504762A FR2733000B1 (en) 1995-04-14 1995-04-14 IMPROVEMENTS ON WINDING CLOSURE DEVICES

Publications (1)

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EP0737794A1 true EP0737794A1 (en) 1996-10-16

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EP96420121A Withdrawn EP0737794A1 (en) 1995-04-14 1996-04-12 Improvements to rollable closing devices

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US (1) US5682937A (en)
EP (1) EP0737794A1 (en)
AU (1) AU5060896A (en)
CA (1) CA2174043A1 (en)
FR (1) FR2733000B1 (en)

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Also Published As

Publication number Publication date
AU5060896A (en) 1996-10-24
FR2733000B1 (en) 1997-06-27
US5682937A (en) 1997-11-04
CA2174043A1 (en) 1996-10-15
FR2733000A1 (en) 1996-10-18

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