EP2235313B1 - Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind - Google Patents
Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind Download PDFInfo
- Publication number
- EP2235313B1 EP2235313B1 EP09713984.4A EP09713984A EP2235313B1 EP 2235313 B1 EP2235313 B1 EP 2235313B1 EP 09713984 A EP09713984 A EP 09713984A EP 2235313 B1 EP2235313 B1 EP 2235313B1
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- EP
- European Patent Office
- Prior art keywords
- ring
- tube
- roller blind
- link
- clamping ring
- 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.)
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- 238000004804 winding Methods 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 239000013536 elastomeric material Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 description 5
- 239000000806 elastomer Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000021615 conjugation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940082150 encore Drugs 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
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
- E06B9/02—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
- E06B9/171—Rollers therefor; Fastening roller shutters to rollers
Definitions
- the invention relates to an assembly of a clamping ring and a shutter tube link, able to surround a winding tube of the shutter apron, the tube link comprising in a direction parallel to the axis of the winding tube at least one lateral extension which has on one side a fastening means of one end of the ring, and on the other side a step-adjustable fastening device capable of cooperating with means conjugate hooking provided at the other end of the ring.
- the gripping device steplessly adjustable and the coupling means are generally formed by a notching system, in particular with teeth and hollow. It is thus possible to vary the perimeter of the ring-link assembly to tighten the winding tube as close as possible, in order to ensure the rotational drive.
- the tube link is usually part of an automatic lock consisting of several links articulated between them and able to be arched to prevent unauthorized raising of the deck.
- an automatic shutter latch is described and claimed in the French patent application no. 07 04615 filed June 27, 2007 in the name of the same Applicant Company.
- US 5,964,013 relates to a link for attaching a bundle of cables.
- This link has an elastic section 4 which is folded substantially at 180 °.
- the cable tie of this prior document does not correspond to the field of the invention which concerns a ring of a roller shutter tube link.
- FR 2778692 relates to an articulated device connecting the deck of a roller shutter to its winding shaft, the grouped action of several identical copies is to transmit on the top of the deck, a crushing force adapted to ensure the condemnation of the shutter. closed position.
- the transmission of the torque between the tube and the automatic lock comprising the tube link maintained by a clamping ring as defined above depends in particular on the quality of the tightening exerted by the ring or rings.
- the notch between the ring and the link is formed on one side by a multitude of teeth provided on the ring and, on the other side, by a multitude of hollow reservations provided on the link. This results in a minimum “step” of displacement between two possible attachment positions, determined by the rating minimum achievable between two tops of teeth. It may happen that the tightening obtained by closing the ring is insufficient and that a greater tightening step by step can not be ensured due to too high tension to exert on the ring.
- the invention aims, above all, to provide a set of a tube link and a ring which allows to exert effective tightening even under the conditions mentioned above.
- the invention also aims to provide a set of a tube link and a clamping ring which ensures good torque transmission between the tube and the tube link fixed to the tube with the aid of one or more clamping rings.
- an assembly of a clamping ring and a roller shutter tube link is characterized in that the ring comprises, projecting on at least one zone of its internal surface, a elastic support means against the wall of the winding tube, the radial stroke of crushing of this elastic means being sufficient to obtain, at the end of the ring provided with the conjugate coupling means, a moving towards the other upper end at the pitch of the adjustable fastening device.
- the resilient support means has a radial crushing stroke which makes it possible, after closure of the ring, to obtain a residual prestressing between the coupling device and the conjugate fastening means.
- the resilient support means is formed by at least one lining of elastomeric material fixed, in particular by gluing or bi-injection, against the inner surface of the ring.
- the clamping ring may comprise, projecting on its inner surface, at least one rigid abutment of a thickness less than that of the uncompressed elastic support means, but sufficient to limit the compression of this elastic support means.
- the radial crushing stroke of the resilient support means may be between one quarter and one fifth of the pitch of the attachment device.
- the zone in which the resilient support means is provided is, at least in part, substantially diametrically opposed to the attachment device.
- the invention also relates to an automatic safety lock, for roller shutter comprising a tube link attached to the tube with at least one clamping ring, the tube link and the ring forming an assembly as defined above.
- the invention also relates to a shutter whose fixing on the winding tube is made using at least one safety lock provided with at least one set of a clamping ring and a tube link as defined above.
- a clamping ring B of a roller shutter tube link 1 can be seen, this ring B being suitable for surrounding a winding roller shutter tube 2.
- the tube 2 has an octagonal cross section. This example is not limiting, the section may be circular or polygonal with a number of sides different from eight.
- the tube link 1 has a substantially cylindrical outer surface generatrices parallel to the geometric axis XX of the tube 2 when the link is in place on the tube.
- the tube link 1 may be part of an automatic safety lock A comprising an apron link 3 and an intermediate link 4.
- the rolling shutter apron (not shown) consists of blades hinged together, the upper blade being attached to a bar 5 of the deck link 3.
- the links 3, 4, 1 of the lock A are hinged together so as to cause an arching, when the apron is fully deployed and the tube winding 2 is stopped in rotation by an operating system. This bracing makes it possible, in particular, to prevent unauthorized raising of the deck from the outside.
- the tube link 1 comprises, in a direction parallel to the geometric axis XX of the tube 2, at least one lateral extension 6 ( Fig. 2 ).
- an extension 6 is provided on each side of the link 1 so that when this link tube 1 is fixed on the tube 2, the extensions 6 are on either side of the link in the longitudinal direction of the tube 2.
- a clamping ring is placed on each side of the link.
- Each lateral extension 6 comprises an attachment means 7 at one end 8 of the ring B.
- the attachment means 7 is advantageously constituted by a substantially rectangular window 9 ( Fig. 2 ) having a bar 10 parallel to the direction of the generatrices of the link 1.
- the end 8 of the ring is formed in the form of a hook 11 which can engage in the opening of the window 9 to catch on the bar 10.
- the side of the extension 6 opposite the window 9 comprises a hooking device 12, adjustable step by step, adapted to cooperate with conjugate hooking means 13 provided at the end of the ring B opposite the hook 11.
- the attachment device 12 comprises a housing 14 open laterally, on the opposite side to the link 1.
- the housing 14 is also open at its end remote from the window 9.
- At least the lower face 14a of the housing, close to the tube 2, is provided with a series of teeth 15, separated by recesses 16 ( Fig.3 ) following a step p .
- the edges of the teeth 15 are oriented parallel to the bar 10.
- the end 17 of the ring B opposite the end 8 is provided on its face turned radially inward, attachment means 13 formed by a succession of notches of the type "tail of fir". Notches are determined by troughs 18 ( Fig.3 ) and conjugate teeth 19 of the teeth 15 and recess 16 of the housing 14. It is thus possible to ensure the closure of the ring B by engaging the teeth 19 and the teeth 15 by engagement through the lateral opening of the housing 14. In a variant, it is possible to provide notches on the two internal faces facing the housing 14, as well as on both faces of the end 17 of the ring.
- the walls of the housing 14 are integral with the link 1 by their edges adjacent to this link, and are sufficiently rigid to keep the distance between them substantially constant.
- the clamping rings B thanks to the steplessly adjustable hooking device 12, can be adapted to different tube models and to different diameters.
- the notching system makes it possible to vary the perimeter of the B-link 1 ring assembly in order to tighten the winding tube 2 as closely as possible in order to ensure the rotational drive.
- the transmission of the torque between the tube 2 and the links of the lock A is generally done by cooperation of pins or lugs (not visible in the drawings) provided under the link and engaged in openings of the tube, and / or by obstacle due to the conjugation of the polygonal shapes between the tubes 2 and the rings B.
- the teeth 19 of the ring advance one by one over the troughs 16 of the link up to maximum tightening.
- the teeth 19 of the ring are about to advance an additional notch, as shown in FIG. Fig. 7 descending into the next recess 16, but the tension exerted on the ring is too high; the teeth 19 then return to the previous hollows. This results in some clipping play (or engagement) and decreased clamping force.
- the or each clamping ring B has, projecting from at least one zone of its inner surface, an elastic support means E ( Figs. 4 and 5 ) against the wall of the winding tube 2.
- the radial stroke dr crushing of the resilient means E is selected sufficient to achieve at the toothed end 17 of the ring, a circumferential displacement ⁇ L on the other end 8, greater than the pitch p of the recesses 16 and teeth 19 (see Fig. 8 ).
- the zone in which the elastic means E is provided is at least in part substantially diametrically opposed to the attachment device 12 and the end 17 of the ring.
- the scheme of Fig. 8 illustrates the relationship between radial crushing dr and the peripheral displacement ⁇ L of the end 17.
- the ring B extends along a circumference of radius r.
- the ring B is made of a material that can be considered as inextensible, so that the ring B retains its length.
- the estimate is only approximate, in particular because the ring B may not completely surround the tube 2, and because the radial crushing is not necessarily regular over the entire periphery.
- the displacement ⁇ L is amplified with respect to the radial crushing.
- the resilient support means E allows, by its compression, the entry of the teeth 19 into the foremost recesses 16 (see FIG. Fig.7 ). At the time of the retraction of the end 17 of the ring under the effect of the elastic return, the elastic support means E ensures a residual tension between the teeth 19 of the ring B and those 15 of the tube link 1.
- the resilient support means E can be compressed. It is also necessary that its radial crushing stroke dr allows to obtain a displacement ⁇ L greater than the pitch p of the hollows and teeth.
- the radial crushing stroke dr of the resilient support means is advantageously between one quarter and one fifth of the pitch p of the attachment device, so that ⁇ L estimated previously at 6.28 dr will be greater than the pitch p .
- the elastic support means E is formed by at least one lining 20 ( Fig.4 and 5 ) of elastomeric material fixed, in particular by bonding or bi-injection, against the inner surface of the ring B.
- the elastomer seal 20 is injected directly against the ring B by bi-injection technique, that is to say say that the injection press has two different feeds of different raw materials that it injects into the same mold, which allows to achieve the part in a single operation, without subsequent recovery of completion.
- the lining 20 can be made in the form of a strip, as illustrated on Fig.4 and 5 , or pavers, or any other suitable volume.
- the ring B has protruding on its inner surface at least one rigid abutment 21 ( Fig. 4 and 5 ) of thickness h1 ( Fig. 5 ) less than the thickness h2 of the uncompressed elastic support means E, and in particular of the elastomer seal 20, for limiting the deformation of the elastic means when a resistive torque is applied to the lock A.
- the crushing forces of the elastomer seal 20 at the time when the tube 2 tends to rotate in the rings B are much higher than those developed during clamping at the time of assembly.
- deformation limiters at the level of the elastomer linings 20 in order not to destroy the adhesion function of the product and to keep the envelope geometry of the tube over the entire inner periphery of the ring to withstand the torque of rotation.
- the projecting portion 21 may be constituted by a rib oriented perpendicularly to the geometric axis of the ring and provided in the central region of the inner surface of the ring over a part of the length.
- the lining of elastomeric material 20 then has two branches flanking the rib 21.
- the lining (s) 20 of elastomeric material make it possible, not only to recover the clipping play of the adjustable closure system between the ring B and the link tube 1, but also to avoid, or at least to delay, the beginning of sliding of the rings B relative to the tube 2 because of the high coefficient of adhesion between the elastomeric material and the tube. This prevents the linings B tend to turn on the tube 2 by deformation, especially in the case where the outer shape of the tube 2 is close to a cylinder.
- a catch zone 22 ( Fig.6 ), in particular formed by a lug 22a.
- This lug 22a has substantially the shape of a rectangle trapezoid whose side remote from the other end 8 of the ring is orthogonal to the peripheral edge of the ring.
- the hooking zone 22 can be grasped by a tool for clamping the ring on the link 1.
- a corner zone 23 is provided on the link 1 for the grip by the tool.
- the clamping distance G corresponds to the distance between the zones 22 and 23.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Blinds (AREA)
- Clamps And Clips (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
L'invention est relative à un ensemble d'une bague de serrage et d'un maillon tube de volet roulant, propre à entourer un tube d'enroulement du tablier de volet roulant, le maillon tube comportant suivant une direction parallèle à l'axe du tube d'enroulement au moins une extension latérale qui présente d'un côté un moyen d'attache d'une extrémité de la bague, et de l'autre côté un dispositif d'accrochage réglable pas à pas propre à coopérer avec des moyens d'accrochage conjugués prévus à l'autre extrémité de la bague.The invention relates to an assembly of a clamping ring and a shutter tube link, able to surround a winding tube of the shutter apron, the tube link comprising in a direction parallel to the axis of the winding tube at least one lateral extension which has on one side a fastening means of one end of the ring, and on the other side a step-adjustable fastening device capable of cooperating with means conjugate hooking provided at the other end of the ring.
Le dispositif d'accrochage réglable pas à pas et les moyens d'accrochage conjugués sont généralement formés par un système de crantage, notamment à dents et creux. Il est ainsi possible de faire varier le périmètre de l'ensemble bague-maillon pour serrer le tube d'enroulement au plus près, afin de bien assurer l'entraînement en rotation.The gripping device steplessly adjustable and the coupling means are generally formed by a notching system, in particular with teeth and hollow. It is thus possible to vary the perimeter of the ring-link assembly to tighten the winding tube as close as possible, in order to ensure the rotational drive.
Le maillon tube fait généralement partie d'un verrou automatique composé de plusieurs maillons articulés entre eux et propres à s'arc-bouter pour empêcher une remontée non autorisée du tablier. Un tel verrou automatique de volet roulant est décrit et revendiqué dans la demande de brevet français n°
Dans le cas d'un volet roulant, la transmission du couple entre le tube et le verrou automatique comportant le maillon tube maintenu par une bague de serrage telle que définie précédemment dépend notamment de la qualité du serrage exercée par la ou les bagues.In the case of a shutter, the transmission of the torque between the tube and the automatic lock comprising the tube link maintained by a clamping ring as defined above depends in particular on the quality of the tightening exerted by the ring or rings.
Pour une bonne transmission, il est important que le serrage du tube par la bague soit suffisamment élevé. Toutefois, le réglage pas à pas crée des difficultés de ce point de vue. Le crantage entre la bague et le maillon est réalisé d'un côté par une multitude de dents prévues sur la bague et, de l'autre côté, par une multitude de réservations en creux prévues sur le maillon. Il en résulte un "pas" minimum de déplacement entre deux positions d'accrochage possibles, déterminé par la cote minimale réalisable entre deux sommets de dents. Il peut arriver ainsi que le serrage obtenu par fermeture de la bague soit insuffisant et qu'un serrage plus important par progression d'un pas ne puisse être assuré en raison d'une tension trop élevée à exercer sur la bague.For a good transmission, it is important that the tightening of the tube by the ring is sufficiently high. However, the step-by-step setting creates difficulties from this point of view. The notch between the ring and the link is formed on one side by a multitude of teeth provided on the ring and, on the other side, by a multitude of hollow reservations provided on the link. This results in a minimum "step" of displacement between two possible attachment positions, determined by the rating minimum achievable between two tops of teeth. It may happen that the tightening obtained by closing the ring is insufficient and that a greater tightening step by step can not be ensured due to too high tension to exert on the ring.
L'invention a pour but, surtout, de proposer un ensemble d'un maillon tube et d'une bague qui permet d'exercer un serrage efficace même dans les conditions évoquées ci-dessus.The invention aims, above all, to provide a set of a tube link and a ring which allows to exert effective tightening even under the conditions mentioned above.
L'invention a également pour but de fournir un ensemble d'un maillon tube et d'une bague de serrage qui permet d'assurer une bonne transmission du couple entre le tube et le maillon tube fixé sur le tube à l'aide d'une ou plusieurs bagues de serrage.The invention also aims to provide a set of a tube link and a clamping ring which ensures good torque transmission between the tube and the tube link fixed to the tube with the aid of one or more clamping rings.
Selon l'invention, un ensemble d'une bague de serrage et d'un maillon tube de volet roulant, tel que défini précédemment, est caractérisé en ce que la bague comporte, en saillie sur au moins une zone de sa surface interne, un moyen d'appui élastique contre la paroi du tube d'enroulement, la course radiale d'écrasement de ce moyen élastique étant suffisante pour permettre d'obtenir, au niveau de l'extrémité de la bague munie des moyens d'accrochage conjugués, un déplacement vers l'autre extrémité supérieur au pas du dispositif d'accrochage réglable.According to the invention, an assembly of a clamping ring and a roller shutter tube link, as defined above, is characterized in that the ring comprises, projecting on at least one zone of its internal surface, a elastic support means against the wall of the winding tube, the radial stroke of crushing of this elastic means being sufficient to obtain, at the end of the ring provided with the conjugate coupling means, a moving towards the other upper end at the pitch of the adjustable fastening device.
Avantageusement, le moyen d'appui élastique présente une course radiale d'écrasement qui permet d'obtenir, après fermeture de la bague, une précontrainte résiduelle entre le dispositif d'accrochage et les moyens d'accrochage conjugués.Advantageously, the resilient support means has a radial crushing stroke which makes it possible, after closure of the ring, to obtain a residual prestressing between the coupling device and the conjugate fastening means.
De préférence, le moyen d'appui élastique est formé par au moins une garniture de matière élastomère fixée, notamment par collage ou bi-injection, contre la surface interne de la bague.Preferably, the resilient support means is formed by at least one lining of elastomeric material fixed, in particular by gluing or bi-injection, against the inner surface of the ring.
La bague de serrage peut comporter, en saillie sur sa surface interne, au moins une butée rigide d'épaisseur inférieure à celle du moyen d'appui élastique non comprimé, mais suffisante pour limiter la compression de ce moyen d'appui élastique.The clamping ring may comprise, projecting on its inner surface, at least one rigid abutment of a thickness less than that of the uncompressed elastic support means, but sufficient to limit the compression of this elastic support means.
La course radiale d'écrasement du moyen d'appui élastique peut être comprise entre le quart et le cinquième du pas du dispositif d'accrochage.The radial crushing stroke of the resilient support means may be between one quarter and one fifth of the pitch of the attachment device.
La zone dans laquelle est prévu le moyen d'appui élastique est, au moins en partie, sensiblement diamétralement opposée au dispositif d'accrochage.The zone in which the resilient support means is provided is, at least in part, substantially diametrically opposed to the attachment device.
L'invention est également relative à un verrou de sécurité automatique, pour volet roulant comprenant un maillon tube fixé au tube à l'aide d'au moins une bague de serrage, le maillon tube et la bague formant un ensemble tel que défini précédemment.The invention also relates to an automatic safety lock, for roller shutter comprising a tube link attached to the tube with at least one clamping ring, the tube link and the ring forming an assembly as defined above.
L'invention concerne également un volet roulant dont la fixation sur le tube d'enroulement est réalisée à l'aide d'au moins un verrou de sécurité muni d'au moins un ensemble d'une bague de serrage et d'un maillon tube tel que défini précédemment.The invention also relates to a shutter whose fixing on the winding tube is made using at least one safety lock provided with at least one set of a clamping ring and a tube link as defined above.
L'invention consiste, mises à part les dispositions exposées ci-dessus, en un certain nombre d'autres dispositions dont il sera plus explicitement question ci-après à propos d'un exemple de réalisation décrit avec référence aux dessins annexés, mais qui n'est nullement limitatif.The invention consists, apart from the arrangements set out above, in a number of other provisions which will be more explicitly discussed below with respect to an embodiment described with reference to the accompanying drawings, but which is not limiting.
Sur ces dessins :
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Fig. 1 est une vue partielle en perspective d'une extrémité de tube d'enroulement d'un volet roulant avec un maillon tube fixé, de chaque côté, par une bague de serrage selon l'invention. -
Fig. 2 est une vue partielle en perspective, à plus grande échelle que surFig. 1 , du maillon tube dont un dispositif d'accrochage est visible sur un côté non encore équipé de la bague de serrage. -
Fig. 3 est une vue partielle en perspective, à grande échelle, du dispositif d'accrochage sous forme d'un crantage. -
Fig. 4 est une vue en perspective partielle du maillon tube, et de chaque bague de serrage prévue aux extrémités de ce maillon tube, le tube n'étant pas représenté. -
Fig. 5 est une section à plus grande échelle d'une bague de serrage selon la ligne V-V deFig. 4 . -
Fig. 6 est une vue partielle de dessus d'une extrémité du maillon tube avec les extrémités de la bague de serrage. -
Fig. 7 est un schéma illustrant la mise en prise des crans respectifs du dispositif d'accrochage du maillon tube et des moyens d'accrochage de la bague, et -
Fig. 8 est un schéma pour illustrer la relation entre l'écrasement radial et le déplacement au niveau du dispositif d'accrochage.
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Fig. 1 is a partial perspective view of a winding tube end of a roller shutter with a tube link fixed on each side by a clamping ring according to the invention. -
Fig. 2 is a partial perspective view, on a larger scale than onFig. 1 , of the tube link which a hooking device is visible on a side not yet equipped with the clamping ring. -
Fig. 3 is a partial perspective view, on a large scale, of the hooking device in the form of a notch. -
Fig. 4 is a partial perspective view of the tube link, and each clamping ring provided at the ends of the tube link, the tube is not shown. -
Fig. 5 is a larger-scale section of a clamping ring according to the VV line ofFig. 4 . -
Fig. 6 is a partial top view of one end of the tube link with the ends of the clamping ring. -
Fig. 7 is a diagram illustrating the engagement of the respective detents of the hooking device of the tube link and the means for fastening the ring, and -
Fig. 8 is a diagram to illustrate the relationship between the radial crushing and the displacement at the attachment device.
En se reportant aux dessins, notamment aux
Le maillon tube 1 peut faire partie d'un verrou de sécurité automatique A comportant un maillon tablier 3 et un maillon intermédiaire 4. Le tablier de volet roulant (non représenté) est constitué de lames articulées entre elles, la lame supérieure étant accrochée à une barre 5 du maillon tablier 3. Les maillons 3, 4, 1 du verrou A sont articulés entre eux de manière à provoquer un arc-boutement, lorsque le tablier est complètement déployé et que le tube d'enroulement 2 est arrêté en rotation par un système de manoeuvre. Cet arc-boutement permet, en particulier, d'empêcher une remontée non autorisée du tablier de l'extérieur.The
Un verrou automatique A de ce type est décrit notamment dans la demande de brevet français n°
Le maillon tube 1 comporte, suivant une direction parallèle à l'axe géométrique X-X du tube 2, au moins une extension latérale 6 (
Chaque extension latérale 6 comporte un moyen d'attache 7 d'une extrémité 8 de la bague B. Le moyen d'attache 7 est avantageusement constitué par une fenêtre sensiblement rectangulaire 9 (
Le côté de l'extension 6 opposé à la fenêtre 9 comporte un dispositif d'accrochage 12, réglable pas à pas, propre à coopérer avec des moyens d'accrochage conjugués 13 prévus à l'extrémité de la bague B opposée au crochet 11.The side of the
Le dispositif d'accrochage 12 comprend un logement 14 ouvert latéralement, du côté opposé au maillon 1. Le logement 14 est ouvert également à son extrémité éloignée de la fenêtre 9. Au moins la face inférieure 14a du logement, proche du tube 2, est munie d'une série de dents 15, séparées par des creux 16 (
L'extrémité 17 de la bague B opposée à l'extrémité 8 est munie, sur sa face tournée radialement vers l'intérieur, des moyens d'accrochage 13 formés par une succession de crans de type "queue de sapin". Les crans sont déterminés par des creux 18 (
Les bagues de serrage B, grâce au dispositif d'accrochage réglable pas à pas 12, peuvent s'adapter à différents modèles de tubes et à différents diamètres. Le système de crantage permet de faire varier le périmètre de l'ensemble bague B-maillon 1 pour serrer le tube d'enroulement 2 au plus près, afin de bien assurer l'entraînement en rotation. La transmission du couple entre le tube 2 et les maillons du verrou A se fait en général par coopération de pions ou ergots (non visibles sur les dessins) prévus sous le maillon et engagés dans des ouvertures du tube, et/ou par obstacle dû à la conjugaison des formes polygonales entre les tubes 2 et les bagues B.The clamping rings B, thanks to the steplessly adjustable hooking
Le crantage entre la bague B et le maillon tube 1 (voir
Lors du serrage de la bague B sur le maillon, les dents 19 de la bague (voir
Pour éviter cet inconvénient, selon l'invention, la ou chaque bague de serrage B comporte, en saillie sur au moins une zone de sa surface interne, un moyen d'appui élastique E (
La zone dans laquelle est prévu le moyen élastique E est au moins, en partie, sensiblement diamétralement opposée au dispositif d'accrochage 12 et à l'extrémité 17 de la bague.The zone in which the elastic means E is provided is at least in part substantially diametrically opposed to the
Le schéma de
Lorsque le moyen d'appui élastique E a été comprimé suivant une course d'écrasement radial dr , la bague B décrit une circonférence de rayon r - dr . Cette circonférence a donc une longueur de 2 π (r - dr ) = 2 πr - 2 π dr .When the elastic support means E has been compressed along a radial crushing stroke dr , the ring B describes a circumference of radius r - dr . This circumference therefore has a length of 2 π ( r - dr ) = 2 π r - 2 π dr .
La longueur 2 πr de la bague B restant constante, le déplacement de l'extrémité 17 de la bague relatif à l'extrémité 8 est ΔL = 2 π dr , soit ΔL = 6.28 dr , et dr = ΔL / 6.28. L'estimation n'est toutefois qu'approximative, notamment parce que la bague B peut ne pas entourer complètement le tube 2, et parce que l'écrasement radial n'est pas nécessairement régulier sur toute la périphérie. Cependant le déplacement ΔL est amplifié par rapport à l'écrasement radial.The
Le moyen d'appui élastique E permet, par sa compression, l'entrée des dents 19 dans les creux 16 les plus en avant (voir
Pour le bon fonctionnement, il faut qu'au moment de l'effort de serrage maximum, le moyen d'appui élastique E puisse être comprimé. Il faut également que sa course radiale d'écrasement dr permette d'obtenir un déplacement ΔL supérieur au pas p des creux et des dents. La course radiale d'écrasement dr du moyen d'appui élastique est avantageusement comprise entre le quart et le cinquième du pas p du dispositif d'accrochage, de sorte que ΔL estimé précédemment à 6.28 dr sera supérieur au pas p.For the proper functioning, it is necessary that at the time of the maximum clamping force, the resilient support means E can be compressed. It is also necessary that its radial crushing stroke dr allows to obtain a displacement Δ L greater than the pitch p of the hollows and teeth. The radial crushing stroke dr of the resilient support means is advantageously between one quarter and one fifth of the pitch p of the attachment device, so that Δ L estimated previously at 6.28 dr will be greater than the pitch p .
Avantageusement, le moyen d'appui élastique E est formé par au moins une garniture 20 (
Avantageusement, la bague B comporte en saillie sur sa surface interne au moins une butée rigide 21 (
Comme visible sur
La ou les garniture(s) 20 de matériau élastomère permettent, non seulement de récupérer le jeu de clippage du système réglable de fermeture entre la bague B et le maillon tube 1, mais aussi d'éviter, ou tout du moins de retarder, le début de glissement des bagues B par rapport au tube 2 en raison du fort coefficient d'adhérence entre la matière élastomère et le tube. On évite ainsi que les garnitures B aient tendance à tourner sur le tube 2 par déformation, dans le cas notamment où la forme extérieure du tube 2 se rapproche d'un cylindre.The lining (s) 20 of elastomeric material make it possible, not only to recover the clipping play of the adjustable closure system between the ring B and the
Pour assurer un bon serrage des bagues B, on peut prévoir sur les bords périphériques, vers l'extrémité 17, une zone d'accrochage 22 (
Claims (9)
- An assembly of a clamping ring (B) and a tube link (1) of a roller blind, the ring being able to surround a tube for winding the apron of the roller blind, the tube link including along a direction parallel to the axis of the winding tube at least one side extension (6) which has on one side a means (7) for attaching one end (8) of the ring, and on the other side, a step-by-step adjustable snapping device (12) able to cooperate with conjugate snapping means (13) provided at the other end of the ring,
characterised in that the ring includes, projecting on at least one zone of the inner surface thereof, an elastic means (E) bearing against the wall of the winding tube, the radial crushing stroke (dr) of this elastic means being sufficient to make it possible to achieve, at the end of the ring provided with the conjugate snapping means, a displacement (ΔL) to the other upper end at the pitch (p) of the adjustable snapping device (12). - The assembly of a clamping ring (B) and a tube link (1) of a roller blind according to claim 1, characterised in that the elastic bearing means (E) has a radial crushing stroke (dr) which makes it possible to achieve, after closing the ring, a residual pre-stress between the snapping device (12) and the conjugate snapping means (13).
- The assembly of a clamping ring (B) and a tube link (1) of a roller blind according to claim 1 or 2, characterised in that the elastic bearing means (E) is formed by at least one lining (20) of elastomeric material secured against the inner surface of the ring.
- The assembly of a clamping ring (B) and a tube link (1) of a roller blind according to claim 3, characterised in that the lining (20) of elastomeric material is secured by gluing or bi-injection against the inner surface of the ring.
- The assembly of a clamping ring (B) and a tube link (1) of a roller blind, according to any of the preceding claims, characterised in that the ring includes, projecting on the inner surface thereof, at least one rigid stop (21) with a thickness (h1) lower than that (h2) of the uncompressed elastic bearing means (E), but sufficient to limit the compression of this elastic bearing means.
- The assembly of a clamping ring (B) and a tube link (1) of a roller blind according to any of the preceding claims, characterised in that the radial crushing stroke (dr) of the elastic bearing means (E) is between one quarter and one fifth of the pitch (p) of the snapping device (12).
- The assembly of a clamping ring (B) and a tube link (1) of a roller blind according to any of the preceding claims, characterised in that the zone in which the elastic bearing means (E) is provided is at least partly substantially diametrically opposed to the snapping device (12).
- An automatic safety lock (A), for a roller blind comprising a tube link (1) secured to the tube by using at least one clamping ring (B) forming an assembly according to any of the preceding claims.
- A roller blind the securement of which on the winding tube is made by using at least one safety lock (A) according to claim 8.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200931747T SI2235313T1 (en) | 2008-01-21 | 2009-01-19 | Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind |
PL09713984T PL2235313T3 (en) | 2008-01-21 | 2009-01-19 | Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0800294A FR2926589B1 (en) | 2008-01-21 | 2008-01-21 | ROLLER SHUTTER TUBE TIGHTENING RING, AUTOMATIC LOCK EQUIPPED WITH SUCH RING AND ROLLING SHUTTER |
PCT/FR2009/000049 WO2009106770A2 (en) | 2008-01-21 | 2009-01-19 | Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2235313A2 EP2235313A2 (en) | 2010-10-06 |
EP2235313B1 true EP2235313B1 (en) | 2017-08-02 |
Family
ID=39745305
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09713984.4A Active EP2235313B1 (en) | 2008-01-21 | 2009-01-19 | Clamping ring for tube link of roller blind, automatic lock including such ring and roller blind |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2235313B1 (en) |
FR (1) | FR2926589B1 (en) |
HU (1) | HUE034764T2 (en) |
PL (1) | PL2235313T3 (en) |
SI (1) | SI2235313T1 (en) |
WO (1) | WO2009106770A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014002387B3 (en) * | 2014-02-24 | 2015-05-07 | Selve Vermögensverwaltung GmbH & Co. KG | Device for attaching a roller shutter to a winding shaft |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2778692A1 (en) * | 1998-05-12 | 1999-11-19 | Daniel Bracq | Coupling system for roller shutter and shaft |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5964013A (en) * | 1997-12-09 | 1999-10-12 | Bergstrom; John A | Cable tie with cable protection features |
-
2008
- 2008-01-21 FR FR0800294A patent/FR2926589B1/en active Active
-
2009
- 2009-01-19 HU HUE09713984A patent/HUE034764T2/en unknown
- 2009-01-19 WO PCT/FR2009/000049 patent/WO2009106770A2/en active Application Filing
- 2009-01-19 PL PL09713984T patent/PL2235313T3/en unknown
- 2009-01-19 EP EP09713984.4A patent/EP2235313B1/en active Active
- 2009-01-19 SI SI200931747T patent/SI2235313T1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2778692A1 (en) * | 1998-05-12 | 1999-11-19 | Daniel Bracq | Coupling system for roller shutter and shaft |
Also Published As
Publication number | Publication date |
---|---|
FR2926589A1 (en) | 2009-07-24 |
PL2235313T3 (en) | 2018-01-31 |
HUE034764T2 (en) | 2018-02-28 |
WO2009106770A2 (en) | 2009-09-03 |
WO2009106770A3 (en) | 2011-12-22 |
SI2235313T1 (en) | 2017-11-30 |
FR2926589B1 (en) | 2020-12-04 |
EP2235313A2 (en) | 2010-10-06 |
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