EP0130120A1 - Roller blind with a mechanism for locking the blind in different positions - Google Patents

Roller blind with a mechanism for locking the blind in different positions Download PDF

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Publication number
EP0130120A1
EP0130120A1 EP84401273A EP84401273A EP0130120A1 EP 0130120 A1 EP0130120 A1 EP 0130120A1 EP 84401273 A EP84401273 A EP 84401273A EP 84401273 A EP84401273 A EP 84401273A EP 0130120 A1 EP0130120 A1 EP 0130120A1
Authority
EP
European Patent Office
Prior art keywords
ring
cage
housing
blind
cylinder
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.)
Ceased
Application number
EP84401273A
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German (de)
French (fr)
Inventor
Alain Berthe
Jean-Claude Neaux
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.)
Farnier and Penin SA
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Farnier and Penin SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Farnier and Penin SA filed Critical Farnier and Penin SA
Publication of EP0130120A1 publication Critical patent/EP0130120A1/en
Ceased 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
    • E06B9/80—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
    • E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions

Definitions

  • the subject of the invention is a roller blind equipped with multiple stop means at several points spaced along its unwinding and winding stroke.
  • a roller blind comprises a free rolling cylinder rotating around its geometric axis, an internal rod mounted coaxially with this cylinder with a first internal end and a second external end immobilized in rotation, a means locked in rotation with one end of the cylinder. winding to rotate around the inner rod, an inner return spring which surrounds the latter and which is fixed on the one hand to the first end of said rod and, on the other hand, to the hub.
  • the hub comprises an outer ring with central opening coaxial with the cylinder and the inner rod; in this ring are pierced a plurality of circumferentially spaced radial holes, each opening into the central opening and each containing a ball.
  • This crown is integral in rotation with the winding cylinder and it freely contains a cage having at its periphery a half-housing capable of partially receiving any ball of any radial hole.
  • the cage contains a ring which is locked in rotation on the inner rod and which carries a stop means leaving an angular movement of limited amplitude of the cage relative to this ring.
  • a thrust means penetrating into the half-housing is housed in the thickness of the cage.
  • This means comprises a piston which is pushed by a spring against a bearing surface provided on the ring and which is stopped in rotation during said angular movement.
  • this means In a first position of the thrust means permitted by the stop means, this means is engaged sufficiently in the half-housing to prevent a ball from entering it. In a second position of the thrust means permitted by the stop means, this means is withdrawn sufficiently from the housing half 7 so that a ball can partially penetrate it.
  • the balls rotate with the crown and are prevented by centrifugal force from entering the half-housing.
  • the stop means occupies its first position and the first ball which arrives in front of the half-housing engages in it partially and opposes any winding. additional awning.
  • the piston of the thrust means is stopped by the bearing surface of the ring and the thrust means enters the half-housing and drives out the ball. It becomes possible to let the blind roll up at its normal speed during which the centrifugal force prevents the balls from entering the half-housing.
  • the blind can be immobilized at any point in its travel after having allowed it to rise slowly up to a fifth of a turn.
  • the blind shown comprises a winding cylinder 1, at the periphery of which is attached a flexible sheet 2, and which is mounted to rotate freely about its geometric axis 3, in a known manner.
  • the cylinder 1 contains an inner coaxial rod 4 having a first inner end 5 free relative to the winding cylinder 1 and to which is fixed one end of a spring 6 for winding the flexible sheet 2.
  • the winding cylinder 1 is provided with a hub 7 with which it is locked in rotation.
  • This hub 7 is freely traversed by the inner rod 4; it ends with an outer end portion 8 with the aid of which it is immobilized in rotation.
  • the hub 7 has concentrically with the inner rod 4 an outer ring 9 having a central opening 10 which contains a cage 11.
  • Several radial holes 12 (five in this example) circumferentially equidistant are drilled in the annular wall of the ring 9 to open into the central opening 10.
  • Each radial hole 12 freely contains a ball 13.
  • a half-housing 14 arranged vertically, open upwards, capable of partially containing, approximately half, the any of the balls 13.
  • the cage 11 has a central hole 15 in which a ring 16 which is locked in rotation on the inner rod 4 is freely engaged by means of a diametrical group 17.
  • the latter has an end 17A which is external to the ring 16 and which extends inside.
  • a recess 18 dug in the cage 11 from the inner face of the central hole 15.
  • the recess 18 has, between two radial end faces 18A, 18B, an extension in circumferential direction which is greater than the diameter of the pin 17, in a direction which will be specified later.
  • a blind hole 19 is drilled obliquely in the cage 11 in the direction of the half-housing 14, so as to partially pass through the central hole 15.
  • the ring 16 has, at its periphery, a recess 20 which makes it appear at inside the blind hole 19 a radial bearing surface 21.
  • the blind hole 19 stops before reaching the half-housing 14 and is followed by a coaxial hole 22 of smaller diameter which opens into this half-housing 14.
  • a piston 23 is slidably mounted in the hole 19; it has a rod 24 which enters the hole 22 and which is just flush with the half-housing 14 when the piston 23 is pushed against the bearing surface 21 under the pressure of a compression spring 25 which surrounds the piston rod 24.
  • the winding spring 6 tends to rotate the winding cylinder 1 and the outer ring 9 counterclockwise indicated by an arrow F 1 in Figures 3 and 5
  • the end part 17A of the pin 17 is applied against an end face 18A of the recess 18 and it is distant from the opposite end face 18B.
  • the latter is arranged so that when the winding cylinder 1 and the outer ring 9 are rotated slightly clockwise F 2 by pulling on the flexible sheet 2, a relative rotation occurs in this direction around the fixed ring 16 until the end portion 17A of the pin 17 is encountered by the end face 18B.
  • the blind of the invention operates as follows.
  • the mechanism can be in the locked state visible in FIG. 3 or in the unlocked state visible in FIG. 5. If the flexible sheet 2 is pulled in the clockwise F 2 of the course, when a ball 13 is engaged in the half-housing 14 (locked state) the limited relative angular movement described above occurs and the ball 13 is driven from the half-housing 14 by the piston rod 24. During normal operation, the centrifugal force drives the balls 13 outward from the holes 12; more the piston rod 24 is engaged in the half-housing 14 and would oppose their entry therein.
  • the hub 7 has a widening in diameter relative to the winding cylinder 1 in order to make the outer ring appear. opposes the loss of the balls 13.

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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)

Abstract

Radial holes (12) drilled in an outer ring (9), which is integral with the winding roll, contain balls (13) which can drop into a half-housing (14) and lock the blind during a slow winding rotation, this half-housing (14) being situated on a cage (11), which is locked in rotation on a fixed central rod (4), but permitting a small angular deflection of the outer ring (9)/cage (11) assembly in the unwinding direction during which a piston rod (24) pushes the ball (13) out of the half-housing (14) and unlocks the blind. <IMAGE>

Description

L'invention a pour objet un store déroulable muni de moyens d'arrêt multiples en plusieurs points espacés le long de sa course de déroulement et d'enroulement.The subject of the invention is a roller blind equipped with multiple stop means at several points spaced along its unwinding and winding stroke.

Les stores classiques de type déroulable qui se réenroulent automatiquement sous l'effet d'un ressort intérieur de rappel n'ont que deux positions stables : la position d'enroulement total et la position de déroulement total. Ils restent à l'état de déroulement total parce qu'on prévoit un moyen d'accrochage pour les immobiliser quand ils arrivent à l'extrémité de leur course de déroulement. On a tenté de les doter de positions intermédiaires stables, à l'état plus ou moins déroulé, en prévoyant des moyens d'accrochage à des positions intermédiaires le long de la course de déroulement. Comme les stores sont placés devant une vitre, on ne peut pas mettre ces moyens d'accrochage intermédiaires dans le milieu de la largeur du store ; on doit les placer sur les deux côtés opposés de ce dernier, d'où une complication certaine et un effet peu esthétique quand le store est enroulé. De plus, ces positions intermé- peu diaires sont souvent/nombreuses et ne correspondent pas nécessairement aux besoins.Classic roller blinds that automatically rewind under the effect of an internal return spring have only two stable positions: the total winding position and the total unwinding position. They remain in the total unwinding state because there is a hooking means to immobilize them when they reach the end of their unwinding stroke. Attempts have been made to provide them with stable intermediate positions, in a more or less unrolled state, by providing hooking means at intermediate positions along the unwinding race. As the blinds are placed in front of a window pane, these intermediate hooking means cannot be placed in the middle of the width of the blind; they must be placed on the two opposite sides of the latter, resulting in a certain complication and an unattractive effect when the blind is rolled up. In addition, these intermediate positions are often / numerous and do not necessarily correspond to the needs.

On a proposé dans le brevet FR. n° 2.278 904 un dispositif de butées internes qui sont inapparentes et qui permettent d'arrêter le store en des points prédéterminés de sa course. Mais ces points sont des points extrêmes de fin de course et non des points intermédiaires. En.outre, leur position ne peut être'modifiée qu'après ouverture du mécanisme donnant accès aux butées internes.It has been proposed in the FR patent. No. 2.278 904 a device of internal stops which are invisible and which make it possible to stop the blind at predetermined points of its travel. But these points are extreme end-of-race points and not intermediate points. In addition, their position can only be changed after opening the mechanism giving access to the internal stops.

Un store déroulable comprend un cylindre d'enroulement libre en rotation autour de son axe géométrique, une tige intérieure montée coaxialement à ce cylindre avec une première extrémité intérieure et une seconde extrémité extérieure immobilisée en rotation, un moyen calé en rotation avec une extrémité du cylindre d'enroulement pour tourner autour de la tige intérieure, un ressort de rappel intérieur qui entoure cette dernière et qui est fixé d'une part à la première extrémité de ladite tige et, d'autre part, au moyeu.A roller blind comprises a free rolling cylinder rotating around its geometric axis, an internal rod mounted coaxially with this cylinder with a first internal end and a second external end immobilized in rotation, a means locked in rotation with one end of the cylinder. winding to rotate around the inner rod, an inner return spring which surrounds the latter and which is fixed on the one hand to the first end of said rod and, on the other hand, to the hub.

Selon l'invention, le moyeu comprend une couronne extérieure à ouverture centrale coaxiale au cylindre et à la tige intérieure ; dans cette couronne sont percés une pluralité de trous radiaux espacés circonférentiellement, débouchant chacun dans l'ouverture centrale et contenant chacun une bille. Cette couronne est solidaire en rotation du cylindre d'enroulement et elle contient librement une cage présentant à sa périphérie un demi-logement capable de recevoir partiellement une bille quelconque d'un trou radial quelconque. La cage contient une bague qui est calée en rotation sur la tige intérieure et qui porte un moyen d'arrêt laissant un débattement angulaire d'amplitude limitée de la cage par rapport à cette bague. Un moyen de poussée pénétrant dans le demi-logement est logé dans l'épaisseur de la cage. Ce moyen comprend un piston qui est repoussé par un ressort contre une surface d'appui prévue sur la bague et qui est arrêté en rotation pendant ledit débattement angulaire.According to the invention, the hub comprises an outer ring with central opening coaxial with the cylinder and the inner rod; in this ring are pierced a plurality of circumferentially spaced radial holes, each opening into the central opening and each containing a ball. This crown is integral in rotation with the winding cylinder and it freely contains a cage having at its periphery a half-housing capable of partially receiving any ball of any radial hole. The cage contains a ring which is locked in rotation on the inner rod and which carries a stop means leaving an angular movement of limited amplitude of the cage relative to this ring. A thrust means penetrating into the half-housing is housed in the thickness of the cage. This means comprises a piston which is pushed by a spring against a bearing surface provided on the ring and which is stopped in rotation during said angular movement.

Dans une première position du moyen de poussée permise par le moyen d'arrêt, ce moyen est engagé suffisamment dans le demi-logement pour empêcher qu'une bille s'y introduise. Dans une seconde position du moyen de poussée permise par le moyen d'arrêt, ce moyen est retiré suffisamment hors du demi7logement pour qu'une bille puisse y pénétrer partiellement.In a first position of the thrust means permitted by the stop means, this means is engaged sufficiently in the half-housing to prevent a ball from entering it. In a second position of the thrust means permitted by the stop means, this means is withdrawn sufficiently from the housing half 7 so that a ball can partially penetrate it.

Pendant le déroulement normal du store, les billes tournent avec la couronne et sont empêchées par la force centrifuge de rentrer dans le demi-logement. Au cours d'un léger mouvement en arrière du store, à vitesse lente, le moyen d'arrêt occupe sa première position et la première bille qui arrive en face du demi-logement s'.y engage partiellement et s'oppose à tout enroulement supplémentaire du store.During the normal running of the blind, the balls rotate with the crown and are prevented by centrifugal force from entering the half-housing. During a slight movement behind the blind, at low speed, the stop means occupies its first position and the first ball which arrives in front of the half-housing engages in it partially and opposes any winding. additional awning.

Au cour$ d'un léger mouvement de déroulement du store, le piston du moyen de poussée est arrêté par la surface d'appui de la bague et le moyen de poussée entre dans le demi-logement et en chasse la bille. Il devient possible de laisser le store s'enrouler à sa vitesse normale pendant laquelle la force centrifuge empêche les billes de pénétrer dans le demi-logement.At the heart of a slight movement of unwinding of the blind, the piston of the thrust means is stopped by the bearing surface of the ring and the thrust means enters the half-housing and drives out the ball. It becomes possible to let the blind roll up at its normal speed during which the centrifugal force prevents the balls from entering the half-housing.

Quand on prévoit cinq trous radiaux et cinq billes dans la couronne extérieure, on peut immobiliser le store en tout point de sa course après l'avoir laissé remonter lentement au maximum d'un cinquième de tour.When five radial holes and five balls are provided in the outer crown, the blind can be immobilized at any point in its travel after having allowed it to rise slowly up to a fifth of a turn.

On donnera maintenant une description d'un exemple de réalisation de l'invention. On se reportera au dessin annexé dans lequel :

  • - la figure 1 est une vue générale en coupe par un plan passant par l'axe du cylindre d'enroulement d'un store conforme à l'invention,
  • - la figure 2 est une vue en coupe selon II-II de la figure 1,
  • - la figure 3 est une vue en coupe selon III-III de la figure 1,
  • . - la figure 4 est une vue analogue à la figure 3 après un léger mouvement de déroulement provoquant le déverrouillage 'du store,
  • - la figure 5 est une vue analogue à la figure 3 montrant le store à l'état déverrouillé pendant son enroulement.
A description will now be given of an exemplary embodiment of the invention. Reference is made to the appended drawing in which:
  • FIG. 1 is a general view in section through a plane passing through the axis of the winding cylinder of a blind according to the invention,
  • FIG. 2 is a sectional view along II-II of FIG. 1,
  • FIG. 3 is a sectional view along III-III of FIG. 1,
  • . FIG. 4 is a view similar to FIG. 3 after a slight unwinding movement causing the unlocking of the blind,
  • - Figure 5 is a view similar to Figure 3 showing the blind in the unlocked state during its winding.

Le store représenté comprend un cylindre d'enroulement 1, à la périphérie duquel est attachée une feuille souple 2,et qui est monté libre en rotation autour de son axe géométrique 3, de façon connue. Le cylindre 1 contient une tige intérieure coaxiale 4 ayant une première extrémité intérieure 5 libre par rapport au cylindre d'enroulement 1 et à laquelle est fixé une extrémité d'un ressort 6 d'enroulement de la feuille souple 2.The blind shown comprises a winding cylinder 1, at the periphery of which is attached a flexible sheet 2, and which is mounted to rotate freely about its geometric axis 3, in a known manner. The cylinder 1 contains an inner coaxial rod 4 having a first inner end 5 free relative to the winding cylinder 1 and to which is fixed one end of a spring 6 for winding the flexible sheet 2.

A une extrémité, le cylindre d'enroulement 1 est muni d'un moyeu 7 avec lequel il est calé en rotation. Ce moyeu 7 est traversé librement par la tige intérieure 4 ; celle-ci se termine par une partie extrême extérieure 8 à l'aide de laquelle elle est immobilisée en rotation.At one end, the winding cylinder 1 is provided with a hub 7 with which it is locked in rotation. This hub 7 is freely traversed by the inner rod 4; it ends with an outer end portion 8 with the aid of which it is immobilized in rotation.

Le moyeu 7 présente concentriquement à la tige intérieure 4 une couronne extérieure 9 ayant une ouverture centrale 10 qui contient une cage 11. Plusieurs trous radiaux 12 (cinq dans cet exemple) équidistants circonférentiellement sont percés dans la paroi annulaire de la couronne 9 pour déboucher dans l'ouverture centrale 10. Chaque trou radial 12 contient librement une bille 13. A la périphérie de la cage 11 est ménagé un demi-logement 14, disposé verticalement, ouvert vers le haut, capable de contenir partiellement, environ à moitié, l'une quelconque des billes 13.The hub 7 has concentrically with the inner rod 4 an outer ring 9 having a central opening 10 which contains a cage 11. Several radial holes 12 (five in this example) circumferentially equidistant are drilled in the annular wall of the ring 9 to open into the central opening 10. Each radial hole 12 freely contains a ball 13. At the periphery of the cage 11 is provided a half-housing 14, arranged vertically, open upwards, capable of partially containing, approximately half, the any of the balls 13.

La cage 11 a un trou central 15 dans lequel est engagée librement une bague 16 qui est calée en rotation sur la tige intérieure 4 à l'aide d'une groupille diamétrale 17. Celle-ci a une extrémité 17A qui est extérieure à la bague 16 et qui s'étend à l'intérieur.d'un évidement 18 creusé dans la cage 11 à partir de la face intérieure du trou central 15. L'évidement 18 a, entre deux faces extrêmes radiales 18A, 18B, une extension en sens circonférentiel qui est supérieure au diamètre de la goupille 17, dans une direction qui sera précisée plus loin.The cage 11 has a central hole 15 in which a ring 16 which is locked in rotation on the inner rod 4 is freely engaged by means of a diametrical group 17. The latter has an end 17A which is external to the ring 16 and which extends inside. A recess 18 dug in the cage 11 from the inner face of the central hole 15. The recess 18 has, between two radial end faces 18A, 18B, an extension in circumferential direction which is greater than the diameter of the pin 17, in a direction which will be specified later.

Un trou borgne 19 est percé en oblique dans la cage 11 en direction du demi-logement 14, de manière à traverser partiellement le trou central 15. A cet emplacement, la bague 16 a, à sa périphérie, un décrochement 20 qui fait apparaitre à l'intérieur du trou borgne 19 une surface radiale d'appui 21. Le trou borgne 19 s'arrête avant d'at- teindre le demi-logement 14 et il est suivi d'un trou coaxial 22 de plus petit diamètre qui débouche dans ce demi-logement 14. Un piston 23 est monté coulissant dans le trou 19 ; il a une tige 24 qui pénètre dans le trou 22 et qui affleure juste dans le demi-logement 14 quand le piston 23 est repoussé contre la surface d'appui 21 sous la poussée d'un ressort de compression 25 qui entoure la tige de piston 24.A blind hole 19 is drilled obliquely in the cage 11 in the direction of the half-housing 14, so as to partially pass through the central hole 15. At this location, the ring 16 has, at its periphery, a recess 20 which makes it appear at inside the blind hole 19 a radial bearing surface 21. The blind hole 19 stops before reaching the half-housing 14 and is followed by a coaxial hole 22 of smaller diameter which opens into this half-housing 14. A piston 23 is slidably mounted in the hole 19; it has a rod 24 which enters the hole 22 and which is just flush with the half-housing 14 when the piston 23 is pushed against the bearing surface 21 under the pressure of a compression spring 25 which surrounds the piston rod 24.

Dans cet état du mécanimme que l'on vient de décrire, le ressort d'enroulement 6 tend à faire tourner le cylindre d'enroulement 1 et la couronne extérieure 9 dans le sens antihoraire indiqué par une flèche F1 sur les figures 3 et 5. La partie extrême 17A de la goupille 17 est appliquée contre une face extrême 18A de l'évidement 18 et il est éloigné de la face extrême opposée 18B. Celle-ci est disposée de telle sorte que lorsqu'on fait tourner légèrement le cylindre d'enroulement 1 et la couronne extérieure 9 en sens horaire F2 en tirant sur la feuille souple 2, une rotation relative se produit dans ce sens autour de la bague fixe 16 juqqu'à ce que la partie extrême 17A de la goupille 17 soit rencontrée par la face extrême 18B. Pendant ce débattement angulaire relatif, le piston 23 est arrêté par la face d'appui 21 de sorte que la tige de piston 24 s'avance fortement dans le demi-logement 14, n'y laissant plus de place pour qu'une bille 13 puisse y être engagée de façon.importante. La figure 4 montre une position intermédiaire pendant l'exécution de cette opération de déverrouillage.In this state of the mechanism just described, the winding spring 6 tends to rotate the winding cylinder 1 and the outer ring 9 counterclockwise indicated by an arrow F 1 in Figures 3 and 5 The end part 17A of the pin 17 is applied against an end face 18A of the recess 18 and it is distant from the opposite end face 18B. The latter is arranged so that when the winding cylinder 1 and the outer ring 9 are rotated slightly clockwise F 2 by pulling on the flexible sheet 2, a relative rotation occurs in this direction around the fixed ring 16 until the end portion 17A of the pin 17 is encountered by the end face 18B. During this relative angular movement, the piston 23 is stopped by the bearing face 21 so that the piston rod 24 advances strongly in the half-housing 14, leaving no more room for a ball 13 can be involved in it. Figure 4 shows an intermediate position during the execution of this unlocking operation.

Le store de l'invention fonctionne de la façon suivante.The blind of the invention operates as follows.

Au repos, la feuille souple 2 étant enroulée totalement ou presque, le mécanisme peut se trouver à l'état verrouillé visible sur la figure 3 ou à l'état déverrouillé visible sur la figure 5. Si on tire sur la feuille souple 2 dans le sens horaire F2 du déroulement, quand une bille 13 est engagée dans le demi-logement 14 (état verrouillé) le débattement angulaire relatif limité décrit ci-dessus se produit et la bille 13 est chassée du demi-logement 14 par la tige de piston 24. Pendant le déroulement normal, la force centrifuge chasse les billes 13 vers l'extérieur des trous 12 ; de plus la tige de piston 24 est engagée dans le demi-logement 14 et s'opposerait à leur entrée dans celui-ci.At rest, the flexible sheet 2 being completely or almost wound, the mechanism can be in the locked state visible in FIG. 3 or in the unlocked state visible in FIG. 5. If the flexible sheet 2 is pulled in the clockwise F 2 of the course, when a ball 13 is engaged in the half-housing 14 (locked state) the limited relative angular movement described above occurs and the ball 13 is driven from the half-housing 14 by the piston rod 24. During normal operation, the centrifugal force drives the balls 13 outward from the holes 12; more the piston rod 24 is engaged in the half-housing 14 and would oppose their entry therein.

Quand on cesse de dérouler le store, on exécute un léger mouvement lent d'enroulement dans le sens F1. Le débattement angulaire relatif se produit en sens inverse ; la tige de piston 24 sort du demi-logement 14 ; le mécanisme se trouve à l'état déverrouillé visible sur la figure 5. Dès qu'une bille.13 arrive en face du demi-logement 14, elle y pénètre à moitié et elle arrête le mouvement d'enroulement (figure 3). Le store est verrouillé à cette position.When you stop unwinding the awning, you make a slight slow winding movement in the direction F 1 . The relative angular movement occurs in the opposite direction; the piston rod 24 comes out of the half-housing 14; the mechanism is in the unlocked state visible in Figure 5. As soon as a ball.13 arrives in front of the half-housing 14, it enters half and stops the winding movement (Figure 3). The blind is locked in this position.

Si on veut l'enrouler à nouveau, un léger mouvement de déroulement en sens horaire F2 produit l'opération de déverrouillage décrite plus haut. Quand on lâche la feuille souple 2 à cet instant, la rotation imposée par le ressort d'enroulement 6 est assez rapide pour que les billes 13 restent chassées vers l'extérieur des trous 12 et passent au-dessus du demi-logement 14 sans y entrer.If you want to wind it again, a slight unwinding movement clockwise F 2 produces the unlocking operation described above. When the flexible sheet 2 is released at this instant, the rotation imposed by the winding spring 6 is fast enough so that the balls 13 remain driven out of the holes 12 and pass over the half-housing 14 without there enter.

Il est préférable que le moyeu 7 présente un élargissement en diamètre par rapport au cylindre d'enroulement 1 pour faire apparaitre la couronne extérieure 9. Celle-ci est couverte ainsi que la face extrême des pièces qu'elle contient, par une coupelle 26 qui s'.oppose à la perte des billes 13.It is preferable that the hub 7 has a widening in diameter relative to the winding cylinder 1 in order to make the outer ring appear. opposes the loss of the balls 13.

Claims (5)

1. Store déroulable comprenant un cylindre,d'enroulement (1), une feuille souple (2) fixée à ce cylindre, une tige intérieure (4) ayant une partie extrême extérieure (8) calée en rotation, un ressort d'enroulement (6) fixé d'une part au cylindre d'enroulement (1), d'autre part à la tige intérieure (4), un moyeu (7) monté libre en rotation autour de la tige intérieure (4) et fixé à une extrémité du cylindre (1), caractérisé en ce que le moyeu (7) comprend une couronne extérieure (9) à ouverture centrale (10) avec des trous radiaux (12) espacés circonférentiellement débouchant dans cette ouverture centrale (10) et contenant chacun une bille (13), une cage (11) est montée libre dans l'ouverture centrale (10) avec un demi-logement (14) ouvert vers la couronne extérieure (9) et apte à recevoir partiellement une bille (13) quelconque, cette cage (11) ayant un trou central (15) contenant une bague (16) calée en rotation sur la tige intérieure (4) et portant un moyen d'arrêt (17) laissant un débattement angulaire d'amplitude limitée de la cage (11) par rapport à cette bague ( 16), un moyen de poussée (23,24) pouvant pénétrer dans le demi-logement (14) étant monté dans la cage (11) et arrêté en rotation pendant ledit débattement angulaire par une surface d'appui (21) prévue sur la bague (16).1. Roller blind comprising a cylinder, winding (1), a flexible sheet (2) fixed to this cylinder, an inner rod (4) having an outer end portion (8) locked in rotation, a winding spring ( 6) fixed on the one hand to the winding cylinder (1), on the other hand to the internal rod (4), a hub (7) mounted free to rotate around the internal rod (4) and fixed at one end of the cylinder (1), characterized in that the hub (7) comprises an outer ring (9) with central opening (10) with circumferentially spaced radial holes (12) opening into this central opening (10) and each containing a ball (13), a cage (11) is freely mounted in the central opening (10) with a half-housing (14) open towards the outer ring (9) and able to partially receive any ball (13), this cage (11) having a central hole (15) containing a ring (16) fixed in rotation on the internal rod (4) and carrying a stop means (17) leaving a d angular depression of limited amplitude of the cage (11) relative to this ring (16), a thrust means (23,24) which can penetrate into the half-housing (14) being mounted in the cage (11) and stopped in rotation during said angular movement by a bearing surface (21) provided on the ring (16). 2. Store selon la revendication 1, caractérisé en ce que le moyen d'arrêt est une goupille (17) traversant diamétralement la bague (16) et la tige intérieure (4) et ayant une partie extrême (17A) en saillie hors de la bague (16) dans un évidement (18) ménagé dans la cage (11) et limité par deux faces extrêmes radiales (18A, 18B) espacées en sens circonférentiel.2. Store according to claim 1, characterized in that the stop means is a pin (17) diametrically passing through the ring (16) and the inner rod (4) and having an end portion (17A) projecting from the ring (16) in a recess (18) formed in the cage (11) and limited by two radial end faces (18A, 18B) spaced apart in circumferential direction. 3. Store selon la revendication 1, caractérisé en ce que le moyen de poussée (23,24) comprend un piston (23) monté coulissant dans un trou oblique (19) percé dans la cage (11) et traversant partiellement le trou central (15) de celle-ci, la bague (16) ayant un décrochement (20) faisant apparaître dans le trou oblique (19) une face d'appui (21) contre laquelle est appuyé le piston (23), ce dernier ayant à l'opposé de la face d'appui (21) une tige (24) apte à pénétrer dans le demi-logement (14).3. Store according to claim 1, characterized in that the pushing means (23,24) comprises a piston (23) slidingly mounted in an oblique hole (19) drilled in the cage (11) and partially passing through the central hole ( 15) thereof, the ring (16) having a recess (20) showing in the oblique hole (19) a bearing face (21) against which is pressed the piston (23), the latter having opposite from the bearing face (21) a rod (24) capable of entering the half-housing (14). 4. Store selon la revendication 1, caractérisé en ce que le moyeu (7) présente en dehors du cylindre d'enroulement (1) un élargissement en diamètre qui fait apparaître la couronne extérieure (9).4. Store according to claim 1, characterized in that the hub (7) has outside the winding cylinder (1) a widening in diameter which shows the outer ring (9). 5. Store selon la revendication 4, caractérisé en ce que les trous radiaux (12) traversent totalement la paroi annulaire de la couronne extérieure (9) et une coupelle (26) couvre cette dernière et retient les billes (13).5. Store according to claim 4, characterized in that the radial holes (12) completely pass through the annular wall of the outer ring (9) and a cup (26) covers the latter and retains the balls (13).
EP84401273A 1983-06-22 1984-06-20 Roller blind with a mechanism for locking the blind in different positions Ceased EP0130120A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8310325 1983-06-22
FR8310325A FR2547855A1 (en) 1983-06-22 1983-06-22 ROLL-OUT BLIND WITH MULTIPLE STOP MEASURES ALONG ITS RACE

Publications (1)

Publication Number Publication Date
EP0130120A1 true EP0130120A1 (en) 1985-01-02

Family

ID=9290055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84401273A Ceased EP0130120A1 (en) 1983-06-22 1984-06-20 Roller blind with a mechanism for locking the blind in different positions

Country Status (2)

Country Link
EP (1) EP0130120A1 (en)
FR (1) FR2547855A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585759A1 (en) * 1985-07-22 1987-02-06 Sm Ind Co Ltd Roller blind winding device with reversible motor
GB2199065A (en) * 1986-12-05 1988-06-29 Ho Long Roller blinds
EP0419017A2 (en) * 1989-09-19 1991-03-27 METACO Co., Ltd. Roller screen unit
WO2000028187A1 (en) * 1998-11-09 2000-05-18 A/S Chr. Fabers Fabriker A/S A rotation blocking mechanism for roller blinds

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR554109A (en) * 1923-06-05
FR668803A (en) * 1928-05-18 1929-11-07 Improvements to automatic roller blind mechanisms
DE2930263A1 (en) * 1978-07-31 1980-02-28 Metako Kigyo Co ROLLO

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR554109A (en) * 1923-06-05
FR668803A (en) * 1928-05-18 1929-11-07 Improvements to automatic roller blind mechanisms
DE2930263A1 (en) * 1978-07-31 1980-02-28 Metako Kigyo Co ROLLO

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585759A1 (en) * 1985-07-22 1987-02-06 Sm Ind Co Ltd Roller blind winding device with reversible motor
GB2199065A (en) * 1986-12-05 1988-06-29 Ho Long Roller blinds
EP0419017A2 (en) * 1989-09-19 1991-03-27 METACO Co., Ltd. Roller screen unit
EP0419017A3 (en) * 1989-09-19 1992-07-29 Metaco Co., Ltd. Roller screen unit
EP0594265A1 (en) * 1989-09-19 1994-04-27 METACO Co., Ltd. Roller screen unit
WO2000028187A1 (en) * 1998-11-09 2000-05-18 A/S Chr. Fabers Fabriker A/S A rotation blocking mechanism for roller blinds

Also Published As

Publication number Publication date
FR2547855A1 (en) 1984-12-28

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