EP2369122A1 - Secured drive system for a blind mechanism - Google Patents
Secured drive system for a blind mechanism Download PDFInfo
- Publication number
- EP2369122A1 EP2369122A1 EP10460012A EP10460012A EP2369122A1 EP 2369122 A1 EP2369122 A1 EP 2369122A1 EP 10460012 A EP10460012 A EP 10460012A EP 10460012 A EP10460012 A EP 10460012A EP 2369122 A1 EP2369122 A1 EP 2369122A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- link
- drive system
- toothed wheel
- notched
- blind
- 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- Withdrawn
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
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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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/36—Lamellar or like blinds, e.g. venetian blinds with vertical lamellae ; Supporting rails therefor
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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
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
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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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/326—Details of cords, e.g. buckles, drawing knobs
- E06B2009/3265—Emergency release to prevent strangulation or excessive load
Definitions
- the present invention relates to a drive system of a blind mechanism whose main purpose is to avoid strangulation problems of people, especially children.
- the invention also relates to blinds equipped with such a blind mechanism drive system.
- Traditional blinds such as, for example, roller blinds comprise, in particular, a winding tube and a curtain wound on the roller tube, or even vertical blinds comprising a plurality of vertically arranged strips and a pivoting mechanism enabling the said rotation to be actuated in rotation.
- vertical lamellae according to vertical axes of rotation, for example to let more or less light depending on the inclination of the vertical lamellae.
- a drive system of the blind mechanism that is to say the roller tube when it is a roller blind and the pivoting mechanism when it comes to a blind with vertical slats, in the aforementioned examples.
- a drive system comprises in particular a notched wheel rotatably mounted along a horizontal axis and resulting directly or indirectly, during its rotation, the blind mechanism, for example the roller tube or the pivoting mechanism.
- a serrated link in particular in the form of a ball chain, meshes with the notched wheel, this notched link meshing with the notches on the upper side of the wheel, which also allows the suspension of this notched link to be suspended. . Pulling down on the notched link causes the rotation of the notched wheel to operate the blind mechanism.
- the object of the present invention is to overcome such disadvantages or accidents.
- the invention relates to a drive system of a blind mechanism comprising a notched wheel mounted in rotation along a horizontal axis and driving directly or indirectly, during its rotation, said blind mechanism and, a notched link suspended and meshing with at least one of the notches of the wheel, pulling down the notched link in one direction or the other, causing the rotation of the toothed wheel in one direction or the other.
- the drive system comprises a safety device configured to keep the toothed link in said at least one notch of the toothed wheel in the lower part of this toothed wheel and to detach the notched link of said drive system when the tensile force exerted by the notched link on the safety device is greater than a limit value of detachment.
- the link is no longer held suspended by means of the toothed wheel, as was the case on the drive systems known to those skilled in the art, which prevented any release of the link.
- the serrated link is held suspended by means of a safety device below the toothed wheel, and meshes with the lower part of the toothed wheel, with at least one of the notches of this toothed wheel, which Removes the notched link without difficulty.
- the safety device comprises a body configured to receive in pivot connection of horizontal axis the notched wheel and, a holding part configured to receive in particular on its upper part the notched link and maintain it in suspension.
- snap-fastening means are arranged between the holding piece and the body to keep the toothed link intermeshed on at least one of the notches in the lower part of the toothed wheel, said detent means being configured to ensure the detachment of the holding part vis-à-vis the body when the tensile force exerted by the notched link on said holding part exceeds the limit value detachment.
- the body comprises an inverted U-shaped bottom portion provided with two branches, the holding part also comprising an inverted U-shape provided with two branches.
- a slide connection and latching means are arranged between the two branches of the body and the two branches of the holding piece to allow the insertion and locking of the holding part inside the portion. lower body, in a meshing position of the serrated link with the lower part of the toothed wheel.
- these latching means consist of notches on the branches of the body and protuberances on the branches of the holding part, these notches and these protuberances being configured to snap into each other. other and disengage from each other beyond an effort corresponding to the limit value of detachment.
- the body comprises a lower part arranged under the toothed wheel, this lower part of the body having the shape of a vertical duct of rectangular section or the like.
- the retaining piece has the shape of a rectangular parallelepiped or the like configured to be slidably mounted vertically in the duct, which makes it possible to engage the serrated link disposed above the holding part, with at least 1 one of the notches in the lower part of the wheel.
- the latching means consist of horizontal striations respectively arranged on two vertical and opposite sides of the duct as well as on two vertical and opposite sides of the rectangular parallelepiped, adjacent to said two vertical faces of the duct, which allows the cooperation of the horizontal striations on the duct and on the rectangular parallelepiped so as to maintain meshed the notched link on the lower part of the notched wheel, a force beyond the detachment limit value for disengaging the striations on the retaining piece vis-à-vis streaks on the body and thus the detachment of the notched link.
- the safety device comprises a body configured to receive in pivot connection of horizontal axis the notched wheel, this body further comprising two flexible side faces whose lower ends are configured to concomitantly maintain the notched link hanging and meshed with at least one of the notches in the lower part of the toothed wheel and to deviate from each other when a force exerted by the serrated link exceeds the limit value of detachment.
- the upper side of the holding part receiving the notched link, or even the lower ends of the two flexible side faces of the body configured to concomitantly maintain the notched link has an inwardly curved shape, which allows bend said notched link in correspondence with the radius of the notched wheel and advantageously allows the meshing of the notched link with several notches in the lower part of the notched wheel.
- the notched link consists of a ball chain.
- other notched links such as, for example, a chain provided with links or any other equivalent.
- the invention also relates to blinds equipped with such a drive system of the blind mechanism, object of the present invention.
- a blind may consist of a roller blind equipped in particular with a curtain, a winding tube of the curtain mounted on a horizontal axis of winding and a drive system object of the present invention, the notched wheel being attached to one end of the winding tube, along a horizontal axis, this ensures a direct transmission between the toothed wheel and the winding tube.
- a reduction system by a set of one or more wheels and notched gears arranged between said toothed wheel of the drive system and the winding tube.
- such a blind may be a blind with vertical lamellae comprising a mechanism for pivoting said vertical lamellae along vertical axes and a driving system, object of the present invention, the notched wheel operating directly or indirectly the pivoting mechanism.
- the figure 1 illustrates a partial view of a roller blind which comprises in particular a roller tube 2 and a drive system 3 in rotation of said roller tube 2.
- This roller blind further comprises a curtain (not shown) which is wound on the roller tube 2 ; according to the direction of rotation of the winding tube, the curtain is wrapped or unwinding said winding tube to hide or sift more or less the passage of light or visibility.
- a fastener 4 arranged for to be fixed on a support such as for example the ceiling, the wall disposed in the upper part of the window where the blind is placed, or even the window frame directly, according to the design of this fastener 4.
- the end 5 of the winding tube 2 is pivotally mounted along a horizontal axis 6 corresponding to the longitudinal axis of the winding tube 2, vis-à-vis said fastener 4.
- the drive system 3 comprises a 7 which receives pivotally along the horizontal axis 6 a notched wheel 8.
- this toothed wheel 8 is directly attached to the end 5 of the winding tube 2. It would of course be conceivable to design a reduction system between the toothed wheel 8 and the end 5 of the winding tube 2, without leaving of the scope of the present invention.
- a notched link 9 which is preferably in the form of a ball chain 10.
- a holding piece 11 which cooperates with the lower part 7a of the body 7, this holding piece 11 having its upper portion 11a which receives the ball chain.
- snap-fastening means 12 ensure the fixing of the holding piece 11 on the lower part 7a of the body 7 in a position in which at least one ball 10a of the ball chain 10 meshes with at least one notch 8a of the notched wheel 8 in the lower part thereof, as illustrated in particular on the figures 1 and 2 and 9 , according to the various possible variants.
- the lower part 7a of the body 7 constitutes a vertical duct for the holding piece 11 slideably mounted vertically inside said lower part 7a, so as to allow the meshing of the ball chain 10 with the notches 8a in lower part of the toothed wheel 8.
- the lower part 7a of the body 7 and the holding piece 11 have a corresponding shape for mounting the slide vertically.
- the latching means 12 according to the design mode illustrated in FIG. figure 1 are implemented by streaks 13a, 13b arranged on two faces 14a, 14b opposite on the lower part 7a of the body 7 and by striations 15a, 15b arranged on two opposite faces 16a, 16b of the holding member 11, said faces 16a, 16b being respectively adjacent to the faces 13a, 13b on the lower part 7a of the body 7.
- the depth of these ridges 13a, 13b, 16a, 16b on the lower part 7a of the body 7 and on the holding part 11 is dimensioned so as to allow detachment between these two parts when too much effort is exerted by the link 9 such a force occurs when the user simultaneously pulls on both sides 9a, 9b of the notched link 9, as shown in FIG. figure 2 because in the opposite case, pulling downwards along the arrow 17 on only one of the sides 9a or 9b of the link 9 causes the rotation of the toothed wheel 8 in one direction or the other.
- the streaks will for example be dimensioned so that a force exerted by the notched link 9 on the holding piece 11, greater than a value of 60 N will ensure detachment of said holding member 11 vis-à-vis the lower part 7a of the body 7.
- FIGS 2 to 8 illustrate a variant of the design of the safety device implemented between the body 7 and the holding part 11 of the drive system 1 to ensure, on the one hand, the maintenance of the toothed link 9 meshing with the notches 8a in the lower part of the notched wheel 8 and, secondly, the detachment of the notched link 9 in case of excessive effort exerted on it.
- the toothed wheel 8 is pivotally mounted along a horizontal axis 6 corresponding for example to the longitudinal axis of the winding tube 2, or other depending on the possible variants blind.
- the lower part 7a of the body 7 comprises an inverted U-shape as illustrated in particular in the figures 2 and 3 .
- the lower part 7a of the body comprises a base 18a and two vertical branches 18b, 18c extending downwards.
- the two branches 18b, 18c of the lower part 7a of the body 7 comprise an inverted C and C shape, arranged facing each other and constituting each of the slideways for vertically sliding mounting of the holding piece 11.
- the holding piece 11 comprises an inverted U-shape as illustrated on FIG. figure 6 , equipped with a base 19a and two branches 19b, 19c extending vertically downwards.
- branches 19b, 19c comprise a stepped portion having the shape of T coated facing vis-à-vis and extending outwards, these T coated being of shape and dimensions corresponding to the C and C inverted branches 18b, 18c in the lower part 7a of the body 7, so as to allow the sliding of the two branches 19b, 19c of the holding member 11 vis-à-vis the two branches 18b, 18c of the lower part 7a of the body 7 .
- this base 19a comprises an inwardly curved shape in the upper part 11a of the holding part 11.
- This has the advantage of allowing the notched link 9, in particular in the form of a ball chain, to conform to this inwardly curved shape and forming a radius of curvature corresponding to the radius of the toothed wheel 8, as illustrated in FIG. figure 2 , which ensures meshing of the serrated link 9 with several notches 8a in the lower part of the toothed wheel 8.
- the branches 18b, 18c of the lower part 7a of the body 7 each comprise notches 20a, 20b which cooperate, as illustrated in FIG. figure 2 , with protuberances 21a, 21b on each of the branches 19b, 19c of the holding part 11, illustrated on the Figures 6 to 8 .
- the notches 20a, 20b and the protuberances 21a, 21b will be dimensioned so as to ensure the detachment of the holding member 11 vis-à-vis the lower part 7a of the body 7 when the force exerted by the link 9 on the holding piece 11 exceeds the detachment limit value for example, as previously recommended for the first design mode illustrated in FIG. figure 1 .
- FIGS. Figures 9 and 10 illustrate a variant design of the safety device on the drive system, configured to keep the toothed link meshed with one or more notches 8a in the lower part of the toothed wheel 8 and to release the notched link 9 of said drive system when the effort of traction exerted by the notched link on the safety device is greater than a limit value of detachment, such as for example that recommended for the previous design modes illustrated in FIGS. Figures 1 to 8 .
- the body 7 of the drive system 3 pivotally receives the toothed wheel 8 along a horizontal axis 6 corresponding for example to the longitudinal axis of a winding tube.
- This body 7 comprises two lateral faces 22a, 22b whose lower ends 23a, 23b make it possible to receive in suspension the notched link 9 as illustrated in FIGS. Figures 9 and 10 and to keep the toothed link 9 engaged with the lower notches 8a of the toothed wheel 8.
- the lower part 7a of the body 7 comprises a circular shape as illustrated in FIG. figure 9 for incurver the notched link according to a radius of curvature corresponding to the radius of the toothed wheel 8, as illustrated on this figure 9 .
- the material chosen for the body as well as the thicknesses of the lateral faces 22a, 22b, in particular at their lower ends 23a, 23b, will be chosen so as to ensure a spacing when the tensile force is greater than the limit value. detachment, for example recommended at 60 N.
- Such a blind mechanism drive system is for example implemented on a roller blind as described above.
- this blind mechanism drive system on vertical blind blinds which comprise in particular a plurality of vertical lamellae and a mechanism for pivoting said lamellae along vertical axes so as to incline more or least said lamellae and obscure or sift the light or visibility.
- vertical blinds are well known to those skilled in the art.
- the drive system will activate the pivot mechanism of the vertical slats.
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Abstract
Description
La présente invention concerne un système d'entraînement d'un mécanisme de store qui a pour but principal d'éviter des problèmes d'étranglement de personnes, notamment des enfants.The present invention relates to a drive system of a blind mechanism whose main purpose is to avoid strangulation problems of people, especially children.
L'invention concerne également des stores équipés d'un tel système d'entraînement de mécanisme de store.The invention also relates to blinds equipped with such a blind mechanism drive system.
Les stores traditionnels, tels que par exemple des stores enrouleurs comprennent notamment un tube enrouleur et un voilage enroulé sur le tube enrouleur, voire des stores à lamelles verticales comprenant une pluralité de lamelles disposées verticalement et un mécanisme de pivotement permettant d'actionner en rotation lesdites lamelles verticales, selon des axes de rotation verticaux, par exemple pour laisser passer plus ou moins la lumière en fonction de l'inclinaison des lamelles verticales.Traditional blinds, such as, for example, roller blinds comprise, in particular, a winding tube and a curtain wound on the roller tube, or even vertical blinds comprising a plurality of vertically arranged strips and a pivoting mechanism enabling the said rotation to be actuated in rotation. vertical lamellae, according to vertical axes of rotation, for example to let more or less light depending on the inclination of the vertical lamellae.
Ces différents stores sont équipés d'un système d'entraînement du mécanisme de store, c'est-à-dire le tube enrouleur lorsqu'il s'agit d'un store enrouleur et le mécanisme de pivotement lorsqu'il s'agit d'un store à lamelles verticales, dans les exemples précités. Un tel système d'entraînement comprend notamment une roue crantée montée en rotation selon un axe horizontal et entrainant de manière directe ou indirecte, lors de sa rotation, le mécanisme de store, par exemple le tube enrouleur ou le mécanisme de pivotement. En outre, un lien cranté, notamment sous la forme d'une chaîne à billes, engrène sur la roue crantée, ce lien cranté engrenant avec les crans sur le côté supérieur de la roue, qui permet également le maintien en suspension de ce lien cranté. Une traction vers le bas sur le lien cranté entraîne la rotation de la roue crantée qui permet d'actionner le mécanisme du store.These different blinds are equipped with a drive system of the blind mechanism, that is to say the roller tube when it is a roller blind and the pivoting mechanism when it comes to a blind with vertical slats, in the aforementioned examples. Such a drive system comprises in particular a notched wheel rotatably mounted along a horizontal axis and resulting directly or indirectly, during its rotation, the blind mechanism, for example the roller tube or the pivoting mechanism. In addition, a serrated link, in particular in the form of a ball chain, meshes with the notched wheel, this notched link meshing with the notches on the upper side of the wheel, which also allows the suspension of this notched link to be suspended. . Pulling down on the notched link causes the rotation of the notched wheel to operate the blind mechanism.
Il est fréquent que des enfants se suspendent au lien cranté ce qui peut endommager le système d'entraînement voire causer la chute du store en arrachant les fixations de celui-ci au support, par exemple. Un danger plus important est que de nombreux enfants s'étranglent en se suspendant au lien cranté.It is common for children to hang from the notched link which can damage the drive system or even cause the blind to fall by tearing the fasteners from it to the support, for example. A danger more It is important to remember that many children choke while hanging on to the notched link.
L'objet de la présente invention est de pallier de tels inconvénients voire accidents.The object of the present invention is to overcome such disadvantages or accidents.
A ce titre, l'invention concerne un système d'entraînement d'un mécanisme de store comprenant une roue crantée, montée en rotation selon un axe horizontal et entraînant de manière directe ou indirecte, lors de sa rotation, ledit mécanisme de store et, un lien cranté suspendu et engrenant, avec au moins un des crans de la roue, une traction vers le bas du lien cranté dans un sens ou dans l'autre, entraînant la rotation de la roue crantée dans un sens ou dans l'autre. En outre, le système d'entraînement comprend un dispositif de sécurité configuré pour maintenir engrené le lien cranté dans ledit au moins un cran de la roue crantée, en partie inférieure de cette roue crantée et pour détacher le lien cranté dudit système d'entrainement lorsque l'effort de traction exercé par le lien cranté sur le dispositif de sécurité est supérieur à une valeur limite de détachement.As such, the invention relates to a drive system of a blind mechanism comprising a notched wheel mounted in rotation along a horizontal axis and driving directly or indirectly, during its rotation, said blind mechanism and, a notched link suspended and meshing with at least one of the notches of the wheel, pulling down the notched link in one direction or the other, causing the rotation of the toothed wheel in one direction or the other. In addition, the drive system comprises a safety device configured to keep the toothed link in said at least one notch of the toothed wheel in the lower part of this toothed wheel and to detach the notched link of said drive system when the tensile force exerted by the notched link on the safety device is greater than a limit value of detachment.
On comprend que, selon les caractéristiques du système d'entraînement d'un mécanisme de store, objet de la présente invention, et tel que prédéfini, le lien n'est plus maintenu suspendu au moyen de la roue crantée, tel que cela était le cas sur les systèmes d'entraînement connus de l'homme du métier, ce qui empêchait tout dégagement du lien. Au contraire, le lien cranté est maintenu suspendu au moyen d'un dispositif de sécurité en dessous de la roue crantée, et engrène sur la partie inférieure de la roue crantée, avec au moins l'un des crans de cette roue crantée, ce qui permet de retirer sans difficulté le lien cranté.It is understood that, according to the characteristics of the drive system of a blind mechanism, object of the present invention, and as predefined, the link is no longer held suspended by means of the toothed wheel, as was the case on the drive systems known to those skilled in the art, which prevented any release of the link. On the contrary, the serrated link is held suspended by means of a safety device below the toothed wheel, and meshes with the lower part of the toothed wheel, with at least one of the notches of this toothed wheel, which Removes the notched link without difficulty.
En outre, lorsqu'une personne exerce un effort de traction sur le lien, par exemple, en se suspendant sur celui-ci soit en tirant avec les mains, soit en se pendant, cela va générer un effort supérieur à une valeur limite de détachement selon laquelle le dispositif de sécurité assure le détachement du lien cranté interrompant par conséquent la suspension et donc tout risque d'endommagement du store voire tout risque d'étranglement de la personne.In addition, when a person exerts a traction force on the link, for example, by hanging on it or by pulling with the hands, or by itself, this will generate a force greater than a limit value of detachment that the security device ensures the detachment of the serrated link thus interrupting the suspension and therefore any risk of damaging the blind or any risk of strangulation of the person.
Selon un mode de conception du système d'entraînement d'un mécanisme de store, objet de la présente invention, le dispositif de sécurité comprend un corps configuré pour recevoir en liaison pivot d'axe horizontal la roue crantée et, une pièce de maintien configurée pour recevoir notamment sur sa partie supérieure le lien cranté et maintenir celui-ci en suspension. En outre, des moyens d'encliquetage sont agencés entre la pièce de maintien et le corps pour maintenir engrené le lien cranté sur au moins un des crans en partie inférieure de la roue crantée, lesdits moyens d'encliquetage étant configurés pour assurer le détachement de la pièce de maintien vis-à-vis du corps lorsque l'effort de traction exercé par le lien cranté sur ladite pièce de maintien dépasse la valeur limite de détachement.According to a mode of design of the drive system of a blind mechanism, object of the present invention, the safety device comprises a body configured to receive in pivot connection of horizontal axis the notched wheel and, a holding part configured to receive in particular on its upper part the notched link and maintain it in suspension. In addition, snap-fastening means are arranged between the holding piece and the body to keep the toothed link intermeshed on at least one of the notches in the lower part of the toothed wheel, said detent means being configured to ensure the detachment of the holding part vis-à-vis the body when the tensile force exerted by the notched link on said holding part exceeds the limit value detachment.
Ainsi, lors d'un effort trop important sur le lien cranté, celui-ci exerce un effort sur la pièce de maintien qui se détache du corps et assure simultanément le détachement du lien cranté.Thus, during an excessive effort on the serrated link, it exerts a force on the holding part which is detached from the body and simultaneously detaches the notched link.
Selon un mode de réalisation, le corps comprend une portion inférieure en forme de U inversé munie de deux branches, la pièce de maintien comprenant également une forme en U inversé munie de deux branches. En outre, une liaison glissière ainsi que des moyens d'encliquetage sont agencés entre les deux branches du corps et les deux branches de la pièce de maintien pour permettre l'insertion et le blocage de la pièce de maintien à l'intérieur de la portion inférieure du corps, dans une position d'engrènement du lien cranté avec la partie inférieure de la roue crantée. De manière préférentielle et non limitative, ces moyens d'encliquetage sont constitués par des encoches sur les branches du corps et par des protubérances sur les branches de la pièce de maintien, ces encoches et ces protubérances étant configurées pour s'encliqueter les unes dans les autres et se désengager les unes des autres au-delà d'un effort correspondant à la valeur limite de détachement.According to one embodiment, the body comprises an inverted U-shaped bottom portion provided with two branches, the holding part also comprising an inverted U-shape provided with two branches. In addition, a slide connection and latching means are arranged between the two branches of the body and the two branches of the holding piece to allow the insertion and locking of the holding part inside the portion. lower body, in a meshing position of the serrated link with the lower part of the toothed wheel. In a preferred and nonlimiting manner, these latching means consist of notches on the branches of the body and protuberances on the branches of the holding part, these notches and these protuberances being configured to snap into each other. other and disengage from each other beyond an effort corresponding to the limit value of detachment.
Selon une variante de réalisation, le corps comprend une partie inférieure agencée sous la roue crantée, cette partie inférieure du corps présentant la forme d'un conduit vertical de section rectangulaire ou similaire. En outre, la pièce de maintien présente la forme d'un parallélépipède rectangle ou similaire configuré pour être monté en glissière verticalement dans le conduit, ce qui permet d'engrener le lien cranté disposé au dessus de la pièce de maintien, avec au moins l'un des crans en partie inférieure de la roue. Par ailleurs, les moyens d'encliquetage sont constitués par des stries horizontales agencées respectivement sur deux faces verticales et opposées du conduit ainsi que sur deux faces verticales et opposées du parallélépipède rectangle, attenantes auxdites deux faces verticales du conduit, ce qui permet la coopération des stries horizontales sur le conduit et sur le parallélépipède rectangle en sorte de maintenir engrené le lien cranté sur la partie inférieure de la roue crantée, un effort au-delà de la valeur limite de détachement permettant de désengager les stries sur la pièce de maintien vis-à-vis des stries sur le corps et ainsi le détachement du lien cranté.According to an alternative embodiment, the body comprises a lower part arranged under the toothed wheel, this lower part of the body having the shape of a vertical duct of rectangular section or the like. In addition, the retaining piece has the shape of a rectangular parallelepiped or the like configured to be slidably mounted vertically in the duct, which makes it possible to engage the serrated link disposed above the holding part, with at least 1 one of the notches in the lower part of the wheel. Moreover, the latching means consist of horizontal striations respectively arranged on two vertical and opposite sides of the duct as well as on two vertical and opposite sides of the rectangular parallelepiped, adjacent to said two vertical faces of the duct, which allows the cooperation of the horizontal striations on the duct and on the rectangular parallelepiped so as to maintain meshed the notched link on the lower part of the notched wheel, a force beyond the detachment limit value for disengaging the striations on the retaining piece vis-à-vis streaks on the body and thus the detachment of the notched link.
Selon une variante de conception, le dispositif de sécurité comprend un corps configuré pour recevoir en liaison pivot d'axe horizontal la roue crantée, ce corps comprenant en outre deux faces latérales flexibles dont les extrémités inférieures sont configurées pour concomitamment maintenir le lien cranté suspendu et engrené avec au moins l'un des crans en partie inférieure de la roue crantée et pour s'écarter l'une vis-à-vis de l'autre lorsqu'un effort exercé par le lien cranté dépasse la valeur limite de détachement.According to a variant of design, the safety device comprises a body configured to receive in pivot connection of horizontal axis the notched wheel, this body further comprising two flexible side faces whose lower ends are configured to concomitantly maintain the notched link hanging and meshed with at least one of the notches in the lower part of the toothed wheel and to deviate from each other when a force exerted by the serrated link exceeds the limit value of detachment.
De manière préférentielle, le côté supérieur de la pièce de maintien recevant le lien cranté, voire les extrémités inférieures des deux faces latérales flexibles du corps configuré pour concomitamment maintenir le lien cranté, présente une forme incurvée vers l'intérieur, ce qui permet d'incurver ledit lien cranté en correspondance avec le rayon de la roue crantée et permet avantageusement l'engrènement du lien cranté avec plusieurs crans en partie inférieure de la roue crantée.Preferably, the upper side of the holding part receiving the notched link, or even the lower ends of the two flexible side faces of the body configured to concomitantly maintain the notched link, has an inwardly curved shape, which allows bend said notched link in correspondence with the radius of the notched wheel and advantageously allows the meshing of the notched link with several notches in the lower part of the notched wheel.
De manière préférentielle, le lien cranté est constitué d'une chainette à billes. On peut toutefois envisager d'autres liens crantés tels que par exemple une chaine munie de maillons ou tout autre équivalent.Preferably, the notched link consists of a ball chain. However, it is possible to envisage other notched links such as, for example, a chain provided with links or any other equivalent.
L'invention concerne également des stores équipés d'un tel système d'entraînement du mécanisme de store, objet de la présente invention. Ainsi, un tel store peut consister en un store enrouleur équipé notamment d'un voilage, d'un tube d'enroulement du voilage monté selon un axe horizontal d'enroulement et d'un système d'entrainement objet de la présente invention, la roue crantée étant assujettie à l'une des extrémités du tube d'enroulement, selon un axe horizontal, cela assure une transmission directe entre la roue crantée et le tube d'enroulement. On pourrait bien entendu prévoir sans sortir du cadre de l'invention un système de démultiplication par un jeu d'une ou plusieurs roues et pignons crantés agencés entre ladite roue crantée du système d'entraînement et le tube enrouleur.The invention also relates to blinds equipped with such a drive system of the blind mechanism, object of the present invention. Thus, such a blind may consist of a roller blind equipped in particular with a curtain, a winding tube of the curtain mounted on a horizontal axis of winding and a drive system object of the present invention, the notched wheel being attached to one end of the winding tube, along a horizontal axis, this ensures a direct transmission between the toothed wheel and the winding tube. We could of course predict without departing from the invention a reduction system by a set of one or more wheels and notched gears arranged between said toothed wheel of the drive system and the winding tube.
Selon une variante, un tel store peut être un store à lamelles verticales comprenant un mécanisme de pivotement desdites lamelles verticales selon des axes verticaux et un système d'entrainement, objet de la présente invention, la roue crantée actionnant directement ou indirectement le mécanisme de pivotement.According to one variant, such a blind may be a blind with vertical lamellae comprising a mechanism for pivoting said vertical lamellae along vertical axes and a driving system, object of the present invention, the notched wheel operating directly or indirectly the pivoting mechanism. .
Les caractéristiques et avantages de la présente invention apparaitront à la lecture de la description suivante de diverses variantes de conception, s'appuyant sur des figures parmi lesquelles :
- la
figure 1 illustre une vue partielle de face en coupe d'un store équipé d'un système d'entraînement d'un mécanisme de store, objet de la présente invention ; - la
figure 2 illustre une vue de côté d'un système d'entraînement d'un mécanisme de store selon une variante de conception ; - les
figures 3, 4 et 5 illustrent respectivement une vue de côté, une vue en coupe de face et une vue de dessous du corps du dispositif de sécurité illustré sur lafigure 2 ; - les
figures 6, 7 et 8 illustrent respectivement une vue de côté, une vue de face et une vue de dessous d'une pièce de maintien telle qu'illustrée sur lafigure 2 ; - les
figures 9 et 10 illustrent respectivement une vue de côté et une vue en coupe de face du système d'entraînement selon une autre variante de conception du dispositif de sécurité.
- the
figure 1 illustrates a partial front view in section of a blind equipped with a drive system of a blind mechanism, object of the present invention; - the
figure 2 illustrates a side view of a drive system of a blind mechanism according to a design variant; - the
Figures 3, 4 and 5 respectively show a side view, a front sectional view and a bottom view of the body of the safety device illustrated in FIG.figure 2 ; - the
Figures 6, 7 and 8 respectively illustrate a side view, a front view and a bottom view of a holding piece as illustrated in FIG.figure 2 ; - the
Figures 9 and 10 respectively illustrate a side view and a front sectional view of the drive system according to another design variant of the safety device.
La
L'extrémité 5 du tube enrouleur 2 est montée à pivotement selon un axe horizontal 6 correspondant à l'axe longitudinal du tube d'enroulement 2, vis-à-vis de ladite pièce de fixation 4. Le système d'entraînement 3 comprend un corps 7 qui reçoit à pivotement selon l'axe horizontal 6 une roue crantée 8. De préférence, selon le mode illustré en
La mise en rotation de la roue crantée est assurée par un lien cranté 9 qui se présente de préférence sous la forme d'une chaînette à billes 10. On constate la présence d'une pièce de maintien 11 qui coopère avec la partie inférieure 7a du corps 7, cette pièce de maintien 11 ayant sa partie supérieure 11a qui reçoit la chaînette à billes. Par ailleurs, des moyens d'encliquetage 12 assurent la fixation de la pièce de maintien 11 sur la partie inférieure 7a du corps 7 dans une position selon laquelle au moins une bille 10a de la chaînette à billes 10 engrène avec au moins un cran 8a de la roue crantée 8 en partie inférieure de celle-ci, tel qu'illustré notamment sur les
On constate sur la
On constate que les moyens d'encliquetage 12 selon le mode de conception illustré en
La profondeur de ces stries 13a,13b,16a,16b sur la partie inférieure 7a du corps 7 et sur la pièce de maintien 11 est dimensionnée en sorte de permettre un détachement entre ces deux pièces lorsqu'un effort trop important est exercé par le lien cranté 9 sur la partie supérieure 11a de ladite pièce de maintien 11. Un tel effort se produit lorsque l'utilisateur tire simultanément sur les deux côtés 9a,9b du lien cranté 9, tel qu'illustré sur la
Les stries seront par exemple dimensionnées pour qu'un effort exercé par le lien cranté 9 sur la pièce de maintien 11, supérieur à une valeur de 60 N assurera un détachement de ladite pièce de maintien 11 vis-à-vis de la partie inférieure 7a du corps 7.The streaks will for example be dimensioned so that a force exerted by the notched
Les
Ainsi, de manière identique à la
A ce titre, selon cette variante de conception, la pièce de maintien 11 comprend une forme en U inversé tel qu'illustré sur la
On constate également sur les
On constate que cette base 19a comprend une forme incurvée vers l'intérieur en partie supérieure 11a de la pièce de maintien 11. Cela présente pour avantage de permettre au lien cranté 9 notamment sous la forme d'une chaînette à billes 10 d'épouser cette forme incurvée vers l'intérieur et de former un rayon de courbure correspondant au rayon de la roue crantée 8, tel qu'illustré sur la
On constate notamment sur les
Les
Ainsi, selon ce mode de conception des
Un tel système d'entraînement de mécanisme de store est par exemple mis en oeuvre sur un store enrouleur tel que décrit précédemment. On peut toutefois envisager la mise en oeuvre de ce système d'entraînement de mécanisme de store sur des stores à lamelles verticales qui comprennent notamment une pluralité de lamelles verticales et un mécanisme de pivotement desdites lamelles selon des axes verticaux en sorte d'incliner plus ou moins lesdites lamelles et occulter voire tamiser la lumière ou encore la visibilité. De tels stores à lamelles verticales sont bien connus de l'homme du métier. Le système d'entraînement permettra l'actionnement du mécanisme de pivotement des lamelles verticales.Such a blind mechanism drive system is for example implemented on a roller blind as described above. However, it is possible to envisage the implementation of this blind mechanism drive system on vertical blind blinds which comprise in particular a plurality of vertical lamellae and a mechanism for pivoting said lamellae along vertical axes so as to incline more or least said lamellae and obscure or sift the light or visibility. Such vertical blinds are well known to those skilled in the art. The drive system will activate the pivot mechanism of the vertical slats.
La mise en oeuvre du système d'entraînement, objet de l'invention, est bien entendu envisageable sur d'autres types de stores actionnés au moyen d'un tel système, sans sortir du cadre de l'invention.The implementation of the drive system object of the invention is of course conceivable on other types of blinds operated by means of such a system, without departing from the scope of the invention.
Bien entendu, d'autres variantes de conception du dispositif de sécurité sur le système d'entraînement du mécanisme de store peuvent être envisagées sans sortir du cadre de la présente invention. On pourra notamment prévoir des moyens d'encliquetage 12 différents entre la pièce de maintien 11 qui reçoit le lien cranté 9 et la partie inférieure 7a du corps 7 sur laquelle est montée à pivotement la roue crantée 8.Of course, other design variants of the safety device on the drive system of the blind mechanism can be envisaged without departing from the scope of the present invention. In particular, it will be possible to provide different latching means 12 between the holding
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10460012A EP2369122A1 (en) | 2010-03-23 | 2010-03-23 | Secured drive system for a blind mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP10460012A EP2369122A1 (en) | 2010-03-23 | 2010-03-23 | Secured drive system for a blind mechanism |
Publications (1)
Publication Number | Publication Date |
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EP2369122A1 true EP2369122A1 (en) | 2011-09-28 |
Family
ID=42537222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP10460012A Withdrawn EP2369122A1 (en) | 2010-03-23 | 2010-03-23 | Secured drive system for a blind mechanism |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012023488A1 (en) * | 2012-12-03 | 2014-06-05 | Hunter Douglas Industries Switzerland Gmbh | Actuator device for e.g. roller blind, for actuation with strand element, has coupling devices preventing detachment of partial structure into lock position and detaching another partial structure that moves into release position |
Citations (7)
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US2856752A (en) * | 1954-10-27 | 1958-10-21 | Bead Chain Mfg Co | Apparatus for stretching bead chains |
US3237470A (en) * | 1963-11-07 | 1966-03-01 | Harold W Birk | Sprocket wheel for bead chain drive |
DE3213096A1 (en) * | 1981-04-16 | 1982-12-09 | Levolor Lorentzen, Inc., Lyndhurst, N.J. | HEAD END CAP FOR SLAT CURTAIN |
DE3329986A1 (en) * | 1983-08-19 | 1985-02-28 | Bautex, Adolf Stöver Söhne KG, 2857 Langen | Blind |
US6116325A (en) * | 1997-04-02 | 2000-09-12 | Hunter Douglas Inc. | Break away operating cord system for retractable coverings for architectural openings |
EP1319793A1 (en) * | 2001-12-17 | 2003-06-18 | Hunter Douglas Industries B.V. | Safety device for cord operated control system |
EP1672164A2 (en) * | 2004-12-17 | 2006-06-21 | Hunter Douglas Industries B.V. | Chain stopper |
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2010
- 2010-03-23 EP EP10460012A patent/EP2369122A1/en not_active Withdrawn
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Publication number | Priority date | Publication date | Assignee | Title |
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US2856752A (en) * | 1954-10-27 | 1958-10-21 | Bead Chain Mfg Co | Apparatus for stretching bead chains |
US3237470A (en) * | 1963-11-07 | 1966-03-01 | Harold W Birk | Sprocket wheel for bead chain drive |
DE3213096A1 (en) * | 1981-04-16 | 1982-12-09 | Levolor Lorentzen, Inc., Lyndhurst, N.J. | HEAD END CAP FOR SLAT CURTAIN |
DE3329986A1 (en) * | 1983-08-19 | 1985-02-28 | Bautex, Adolf Stöver Söhne KG, 2857 Langen | Blind |
US6116325A (en) * | 1997-04-02 | 2000-09-12 | Hunter Douglas Inc. | Break away operating cord system for retractable coverings for architectural openings |
EP1319793A1 (en) * | 2001-12-17 | 2003-06-18 | Hunter Douglas Industries B.V. | Safety device for cord operated control system |
EP1672164A2 (en) * | 2004-12-17 | 2006-06-21 | Hunter Douglas Industries B.V. | Chain stopper |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012023488A1 (en) * | 2012-12-03 | 2014-06-05 | Hunter Douglas Industries Switzerland Gmbh | Actuator device for e.g. roller blind, for actuation with strand element, has coupling devices preventing detachment of partial structure into lock position and detaching another partial structure that moves into release position |
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