EP2112321B1 - Roller blind equipped with a brake - Google Patents
Roller blind equipped with a brake Download PDFInfo
- Publication number
- EP2112321B1 EP2112321B1 EP09158459.9A EP09158459A EP2112321B1 EP 2112321 B1 EP2112321 B1 EP 2112321B1 EP 09158459 A EP09158459 A EP 09158459A EP 2112321 B1 EP2112321 B1 EP 2112321B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- apron
- jaw
- brake
- jaws
- slat
- 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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Links
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- 238000004804 winding Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
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- 241000722921 Tulipa gesneriana Species 0.000 description 1
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- 230000000284 resting effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
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
- E06B9/02—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
- E06B9/17046—Bottom bars
-
- 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
- E06B9/86—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic against unauthorised opening
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
-
- 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
- E06B9/88—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for limiting unrolling
- E06B2009/885—Braking mechanism activated by the bottom bar
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/58—Guiding devices
Definitions
- the invention relates to a shutter comprising an apron guided on each side by a slide, and which is adapted to wrap around a tube, the deck being composed of blades articulated between them, the upper blade being connected to the tube, in particular by a safety lock or simple flexible fasteners, the roller shutter being equipped with a brake.
- the invention relates more particularly, but not exclusively, to a motorized roller shutter.
- the descent and the climb are obtained using an electric motor that drives the tube.
- the shutter by its design, can create a guillotine effect.
- the jamming effort is proportional to the weight of the deck, but also to the engine power at the end of descent. Indeed, most of the motors are set to stop at the low point in an angular position of the predefined tube (there are still manually adjustable motors of the limit switches where we adjust the low point in a precise position) . Under these conditions, if the shutter is equipped with automatic latches (that is to say rigid links pushing between the deck and the winding tube), in the presence of an obstacle during the descent of the deck, the engine torque acting on the tube will be applied in pressure on the deck by means of the automatic locks, and the lower blade can exert a very important effort on the obstacle.
- automatic latches that is to say rigid links pushing between the deck and the winding tube
- the control of the notched sector support against the wall of the slide needs to be improved in order to ensure a more effective blocking.
- EP 0 908 593 also relates to a mechanism for stopping a motorized roller shutter when an obstacle is encountered on descent.
- a mechanical solution is provided which requires a particular slide with teeth. The apron stop is not immediate and can intervene only after a race equal to the pitch of the toothing.
- EP 0 401 419 relates to a mechanism for preventing unauthorized lifting of a shutter in the closed position.
- the mechanism comprises at least two jaws rotatably mounted on a support connected to one of the active parts of the deck, the tilting of the jaws being caused by the displacement of the control means which cooperates with a cam, provided on each jaw, in response to the moving the two active parts of the apron, the jaws tilting outwardly projecting, each jaw having a notched sector or teeth adapted to come to lock against a wall of the slide, the serrated or toothed sector of the jaw being located, relative to the axis of articulation, on the opposite side to the cam.
- the mechanism is relatively complicated, with many pivoting axes and a flexible linkage of traction.
- the object of the invention is, above all, to provide a brake system integrated into the apron, in particular to the final blade, which ensures an effective locking. It is desirable that this brake system is independent of the type of maneuver and is sufficient to itself to stop the descent of the deck. It is further desirable that this brake system is simple and economical to achieve.
- the invention is a rolling shutter according to the statement of claim 1, comprising such a brake system integrated to the deck.
- This brake system is independent of the type of maneuver and is sufficient to itself to stop the descent of the deck.
- this brake system can be completed by a system for sending information to an electric motor driving the winding tube, to stop the motor or reverse its direction of rotation.
- An advantage of the brake system according to the invention compared to a safety edge that would control the engine stop, is that it blocks the descent of the deck directly at the obstacle.
- a safety edge one depends on the reaction time of the electronics and the drive train between the motor and the final blade (play in the motor reducer, play in the motor supports, in the fastening systems of the apron , etc ).
- the system of the invention also has the advantage of mitigating any linkage incident of the kinematic chain. Indeed, if the connection between two blades of the deck breaks, or if a fastener system breaks, the apron locking system remains effective.
- the wedging member is mounted so as to project in a plane perpendicular to the plane of the deployed deck.
- the part of the brake control means may comprise tabs projecting inwards so as to be below the cams, to close the jaws and thus move the notched sectors away from the walls of the slide, when the two active parts of the blade spread vertically from one another ..
- the two active parts may be provided at a brake blade of the deck, which consists of the two active parts nested one inside the other, and can move relative to each other in the plane apron deployed.
- the brake blade is the lower blade of the deck.
- a mechanical brake can be provided on each side of the apron to cooperate with the corresponding slide.
- the jaw is rotatably mounted about a horizontal axis parallel to the plane of the deployed deck.
- the wedging member may comprise two jaws rotatably mounted in opposite directions.
- the support on which the jaw is rotatably mounted comprises a body inserted into the end of the lower active portion of the brake blade, this body having an axis on which the jaw is hinged.
- the support on which the jaw is rotatably mounted may be formed by a vertical web integral with the lower active part, which sail is provided on its upper edge with a horizontal hollow cylinder adapted to receive an axis of rotation of the jaw, the part active lower being provided to fit into the upper active part.
- a roller shutter V comprising an apron 1 guided on each side by a slide 2a, 2b horizontal cross section U.
- the concavities of the slides are facing one another.
- the apron 1 is suitable for wrapping around a tube 4 of horizontal axis located above the upper end of the slides and driven by an M motor with gearbox, schematically shown.
- the upper blade 3a of the apron is connected to the tube 4, in particular by simple flexible fasteners, or by safety latches 5 which allow a controlled winding from the motor M and the tube 4, but which oppose, by means of stubborn, unauthorized lifting of the lowered apron
- the apron 1 has, as illustrated on Fig. 2 and 3 at least two adjacent active parts, namely a lower active part 6 and an upper active part 7 mounted so as to be able to approach each other in the vertical direction when the deck 1, in its descent, encounters a obstacle or stop.
- the active parts 6, 7 are provided at a braking blade 8 of the apron.
- This braking blade 8 is composed of two active parts 6, 7 nested one inside the other and can move relative to each other in the vertical plane of the deck deployed.
- the brake blade 8 constitutes the lower or final blade of the deck. However this braking blade could be provided at another level.
- the active parts 6, 7 of the brake blade 8 are metal, advantageously made of aluminum, or light alloy, spun.
- the active part 6 is formed by a hollow section section as shown in FIG. Fig. 6 , extending over the entire width of the deck.
- the profile is open at each end.
- the cross section of the active part 6 is rectangular with its large vertical side.
- the small upper side of the active part 6 is secured in the middle of a T-shaped section 9, the vertical upright passes through a slot 10 provided in the lower part of the active part 7.
- This active part 7 is also formed by a profile to substantially rectangular cross section with a horizontal partition 7a substantially halfway up.
- the horizontal branch 11 of the T-shaped section 9 is housed in the partitioned lower cavity of the active part 7 and can move from a lower position illustrated on Fig. 6 where the active parts 6, 7 are spaced apart as far as possible, at a position illustrated on Fig. 8 where the active parts 6, 7 are brought closer together; the branch 11 is then close to the partition 7a.
- a curved hook-shaped profile 12 is provided at the top of the active portion 7 for articulation with the immediately higher apro
- the rolling shutter comprises at least one mechanical brake B.
- Preferably two mechanical brakes B are provided, respectively one on each side of the deck 1, at each end of the brake blade 8.
- the mechanical brake B comprises a control means D that is sensitive to bringing the two active parts 6, 7, and at least one wedging K clean to protrude transversely for a block against a wall of the slide 2a.
- the wedging member K preferably comprises two jaws 13a, 13b rotatably mounted in opposite directions about a horizontal axis of articulation 14 parallel to the plane of the deployed deck.
- the jaws 13a, 13b are made of metal, preferably treated steel.
- the hinge axis 14 is provided on the outer vertical edge of a brake body 15 in the form of a substantially parallelepipedal metal block, thicker at the upper and lower edges and at the height of the hinge. axis 14.
- the block 15 is engaged by horizontal sliding in the open section of the active part 6 and is held by friction or by any other means in this active part.
- the vertical outer edge of the block 15 is placed in the plane of the end of the active part 6 so that only the axis 14 protrudes relative to this plane.
- the two jaws 13a, 13b are articulated vis-a-vis the axis 14, in a cross arrangement.
- Each jaw 13a, 13b comprises, in the upper part in the example shown, a cam 16a, 16b extending transversely. Opposite the cam relative to the axis of rotation 14, each jaw has a notched or toothed sector 17a, 17b adapted to be locked against a wall of the slide.
- the two walls, in this example, against which the sectors 17a, 17b come to lock are the walls of the slide parallel to the plane of the deployed deck.
- the control means D of the brake comprises a part 18, in particular of synthetic material, or of plastic material, which comprises in the upper part a tab 19 at right angles.
- the piece 18 may, alternatively, be made of cut steel, and possibly be provided on its longitudinal sides with notches.
- the tab 19 is engaged and maintained in a reservation forming an upper housing of the active part 7, above the horizontal partition 7a.
- the piece 18, located in a vertical plane against the edge of the deck, comprises, in the upper part, two lateral extensions 20a, 20b forming anvils, which can be straight or curved. According to the realization of Fig. 5 , the lower end of the anvils 20a, 20b is folded inwards to be substantially parallel to the cams 16a, 16b. Alternatively, the anvils 20a, 20b may be formed by substantially horizontal straight extensions above the cams 16a, 16b.
- the piece 18 may further comprise tabs 21a, 21b provided so as to be below the cams 16a, 16b.
- the tongues 21a, 21b can be curved substantially at right angles inwards. These tongues 21a, 21b constitute counter-anvils whose function is to close the jaws 13a, 13b, and thus to move the notched sectors of the walls of the slide, when the two active parts 6, 7 of the blade s 'Spread vertically from one another, for example during the ascent of the apron.
- the part 18 comprises in the upper part and in the lower part of the tongues 22 in transverse extension in the plane of the part 18 to contribute to its guidance between the walls 2a, 2b of the slide.
- the tongues 22 protrude laterally from the notches of the sectors 17a, 17b in the loosened position in order to prevent undesirable hooking of these notches with the wall of the slide.
- the upper tabs 22 may further serve as stop stop under tulip.
- the piece 18 has a rectangular window 23 whose long side is vertical ( Fig. 3 ).
- This window is traversed by a screw 24, advantageously self-tapping, screwed into a bore of the axis 14.
- the head of the screw 24 is pressed against the piece 18 to hold it against the edge of the brake blade 8
- a vertical relative displacement of the piece 18 relative to the screw 24 and to the block 15 is possible because of the rectangular window 23.
- the lower end of the piece 18 has a curved portion 18a which is in sliding abutment against the edge of the blade 8, but does not fit into this blade.
- the brake blade 108 consists of the two active parts 106, 107.
- the lower active portion 106 is provided for insertion into the upper active portion 107.
- the support on which the jaw 13a, 13b is rotatably mounted is formed by a vertical web 115 secured to the lower active portion 106.
- the veil 115 is provided on its upper edge with a horizontal hollow cylinder 114 adapted to receive the axis d 124 articulation of the jaw.
- the shaft 124 may comprise a self-tapping screw portion.
- the upper leg 19 of the anvil piece 18 is introduced into a reservation adjusted to its shape.
- the hinge axis 124 of the two cams 13a, 13b is screwed directly into a hole 114a formed in the upper cylinder 114 of the active part 106, thus avoiding an intermediate piece and giving greater strength and reliability to the assembly. .
- the lower housing of the active part 107 in which the lower active part 106 is engaged has, substantially at mid-height, two inwardly projecting T-shaped ribs 25 forming stop and guide pins on both sides. other of the veil 115.
- the upper cylinder 114 comprises, on either side of its junction with the web 115, a rib 26 projecting radially adapted to abut against a lug 25 at the end of the low stroke of the portion 106.
- the brake blade 108 consisting of the parts 106 and 107 is made of aluminum, or light alloy, spun.
- the weight of the apron 1 that accumulates on the brake blade 8, 108 will create additional pressure on the cams 16a, 16b and the blockage will be even more powerful because the teeth of the notched sectors 17a, 17b will tend to s' further apart and to exert even stronger pressure against the inner walls of the slide 2a, 2b, with effective blocking.
- the proposed system is therefore self-locking because the higher the load, the more the teeth of the jaws 13a, 13b exert pressure against the inner walls of the slide.
- the presence of the anvil 21a, 21b under the cams 16a, 16b ensures that the jaws 13a, 13b close again well during the lifting the apron 1 since the anvils act on the cams 16a, 16b to bring the jaws closer together.
- the counter-anvils 21a, 21b provide the advantage of ensuring the movement and position of the jaws 13a, 13b for the case where they tend to move poorly over time, either because of soiling in the backstage, either because of galling due to the onset of corrosion. In this case, the own movement of the parts due to gravity would no longer be sufficient to ensure the approximation of the jaws.
- anvil 21a, 21b also ensures proper operation with a slightly inclined flap, for example roof flap, for which the risk of jamming of a person resting on the rim of the roof flap is real.
- the operation of the brake according to the invention has the advantage of keeping the apron 1 locked in position, even if the obstacle can partially disengage. This avoids the apron comes to apply again his load against the obstacle during disengagement.
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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)
Description
L'invention est relative à un volet roulant comportant un tablier guidé de chaque côté par une coulisse, et qui est propre à s'enrouler autour d'un tube, le tablier étant composé de lames articulées entre elles, la lame supérieure étant reliée au tube, en particulier par un verrou de sécurité ou de simples attaches souples, le volet roulant étant équipé d'un frein.The invention relates to a shutter comprising an apron guided on each side by a slide, and which is adapted to wrap around a tube, the deck being composed of blades articulated between them, the upper blade being connected to the tube, in particular by a safety lock or simple flexible fasteners, the roller shutter being equipped with a brake.
L'invention concerne plus particulièrement, mais non exclusivement, un volet roulant à commande motorisée. La descente et la montée sont obtenues à l'aide d'un moteur électrique qui entraîne le tube.The invention relates more particularly, but not exclusively, to a motorized roller shutter. The descent and the climb are obtained using an electric motor that drives the tube.
Lors de la descente d'un volet roulant, en particulier d'un volet roulant qui est entraîné non pas par une commande manuelle mais par un moteur électrique, il y a risque de coincement de personnes ou de biens entre la lame finale inférieure du tablier et le seuil de la porte ou de la fenêtre.During the descent of a roller shutter, in particular a shutter which is driven not by a manual control but by an electric motor, there is a risk of jamming people or goods between the lower final blade of the apron and the threshold of the door or window.
Il existe des commandes motorisées qui sont pilotées :
- par une commande à contact non maintenu, c'est-à-dire que l'opérateur donne le signal de descente et ensuite peut quitter du regard le tablier en cours de fermeture sachant que le moteur s'arrêtera tout seul lorsqu'un contact de fin de course bas est atteint,
- ou par une commande à distance (une télécommande, une horloge, un automate de pilotage réagissant au vent, à la luminosité, à la pluie, à une tentative d'intrusion ou tout autre paramètre).
- by an unmaintained contact command, that is to say that the operator gives the descent signal and then can leave the apron in the process of closing, knowing that the engine will stop by itself when a contact of bottom limit is reached,
- or by a remote control (a remote control, a clock, a controller that reacts to wind, brightness, rain, an intrusion attempt or any other parameter).
De telles commandes motorisées risquent de créer des situations dangereuses de coincement.Such motorized controls can create dangerous jamming situations.
Le volet roulant, par sa conception, peut créer un effet guillotine. L'effort de coincement est proportionnel au poids du tablier, mais aussi à la puissance du moteur en fin de descente. En effet, la plupart des moteurs sont réglés pour s'arrêter au point bas dans une position angulaire du tube prédéfini (il reste encore des moteurs à réglage manuel des fins de course où on ajuste le point d'arrêt bas dans une position précise). Dans ces conditions, si le volet est équipé de verrous automatiques (c'est-à-dire de liens rigides en poussée entre le tablier et le tube d'enroulement), en présence d'un obstacle lors de la descente du tablier, le couple moteur agissant sur le tube va s'appliquer en pression sur le tablier par l'intermédiaire des verrous automatiques, et la lame inférieure peut exercer un effort très important sur l'obstacle.The shutter, by its design, can create a guillotine effect. The jamming effort is proportional to the weight of the deck, but also to the engine power at the end of descent. Indeed, most of the motors are set to stop at the low point in an angular position of the predefined tube (there are still manually adjustable motors of the limit switches where we adjust the low point in a precise position) . Under these conditions, if the shutter is equipped with automatic latches (that is to say rigid links pushing between the deck and the winding tube), in the presence of an obstacle during the descent of the deck, the engine torque acting on the tube will be applied in pressure on the deck by means of the automatic locks, and the lower blade can exert a very important effort on the obstacle.
On peut craindre le pire s'il s'agit d'une personne, notamment un enfant, coincé sous la lame finale inférieure.One can fear the worst if it is a person, especially a child, stuck under the lower final blade.
- le tablier comportant au moins deux parties actives voisines, montées de manière à pouvoir se rapprocher l'une de l'autre lorsque le tablier, dans sa descente, rencontre un obstacle ou une butée,
- le frein étant un frein mécanique qui comporte un moyen de commande sensible au rapprochement des deux parties actives, et au moins un organe de coincement lié en translation verticale au tablier,
- l'organe de coincement comprenant au moins une mâchoire montée rotative sur un support lié à l'une des parties actives du tablier, le basculement de la mâchoire étant provoqué par le déplacement du moyen de commande qui coopère avec une came, prévue sur la mâchoire, en réponse au déplacement des deux parties actives du tablier,
- chaque mâchoire comportant un secteur cranté ou denté propre à venir se bloquer contre une paroi de la coulisse.
- the apron comprising at least two adjacent active parts, mounted so as to be close to one another when the deck, in its descent, meets an obstacle or a stop,
- the brake being a mechanical brake which comprises a control means responsive to the bringing together of the two active parts, and at least one wedging member connected in vertical translation to the apron,
- the wedging member comprising at least one jaw rotatably mounted on a support connected to one of the active parts of the apron, the tilting of the jaw being caused by the displacement of the control means which cooperates with a cam, provided on the jaw in response to the displacement of the two active parts of the apron,
- each jaw having a serrated sector or toothed clean to come hang against a wall of the slide.
La commande de l'appui du secteur cranté contre la paroi de la coulisse demande à être amélioré afin d'assurer un blocage plus efficace.The control of the notched sector support against the wall of the slide needs to be improved in order to ensure a more effective blocking.
L'invention a pour but, surtout de fournir un système de frein intégré au tablier, en particulier à la lame finale, qui assure un blocage efficace. Il est souhaitable que ce système de frein soit indépendant du type de manoeuvre et se suffise à lui-même pour stopper la descente du tablier. Il est souhaitable en outre que ce système de frein soit simple et économique à réaliser.The object of the invention is, above all, to provide a brake system integrated into the apron, in particular to the final blade, which ensures an effective locking. It is desirable that this brake system is independent of the type of maneuver and is sufficient to itself to stop the descent of the deck. It is further desirable that this brake system is simple and economical to achieve.
L'invention est un volet roulant selon l'énoncé de la revendication 1, comprenant un tel système de frein intégré au tablier.The invention is a rolling shutter according to the statement of
Ce système de frein est indépendant du type de manoeuvre et se suffit à lui-même pour stopper la descente du tablier. Bien entendu, ce système de frein peut être complété par un système d'envoi d'informations à un moteur électrique entraînant le tube d'enroulement, pour stopper ce moteur ou inverser son sens de rotation.This brake system is independent of the type of maneuver and is sufficient to itself to stop the descent of the deck. Of course, this brake system can be completed by a system for sending information to an electric motor driving the winding tube, to stop the motor or reverse its direction of rotation.
Un avantage du système de frein selon l'invention, par rapport à une barre palpeuse qui commanderait l'arrêt du moteur, tient au fait qu'il bloque la descente du tablier directement au niveau de l'obstacle. Avec une barre palpeuse, on est tributaire du temps de réaction de l'électronique et de la chaîne cinématique entre le moteur et la lame finale (jeu dans le réducteur moteur, jeu dans les supports du moteur, dans les systèmes d'attache du tablier, etc...).An advantage of the brake system according to the invention, compared to a safety edge that would control the engine stop, is that it blocks the descent of the deck directly at the obstacle. With a safety edge, one depends on the reaction time of the electronics and the drive train between the motor and the final blade (play in the motor reducer, play in the motor supports, in the fastening systems of the apron , etc ...).
Le système de l'invention présente aussi l'avantage de pallier tout incident de liaison de la chaîne cinématique. En effet, si la liaison entre deux lames du tablier casse, ou si un système d'attache se rompt, le système de blocage du tablier reste efficace.The system of the invention also has the advantage of mitigating any linkage incident of the kinematic chain. Indeed, if the connection between two blades of the deck breaks, or if a fastener system breaks, the apron locking system remains effective.
De préférence, l'organe de coincement est monté de manière à faire saillie dans un plan perpendiculaire au plan du tablier déployé.Preferably, the wedging member is mounted so as to project in a plane perpendicular to the plane of the deployed deck.
La pièce du moyen de commande du frein peut comporter des languettes en saillie vers l'intérieur de manière à se trouver au-dessous des cames, pour refermer les mâchoires et ainsi éloigner les secteurs crantés des parois de la coulisse, lorsque les deux parties actives de la lame s'écartent verticalement l'une de l'autre..The part of the brake control means may comprise tabs projecting inwards so as to be below the cams, to close the jaws and thus move the notched sectors away from the walls of the slide, when the two active parts of the blade spread vertically from one another ..
Les deux parties actives peuvent être prévues au niveau d'une lame de freinage du tablier, laquelle se compose des deux parties actives imbriquées l'une dans l'autre, et pouvant se déplacer l'une par rapport à l'autre dans le plan du tablier déployé.The two active parts may be provided at a brake blade of the deck, which consists of the two active parts nested one inside the other, and can move relative to each other in the plane apron deployed.
Généralement, la lame de freinage constitue la lame inférieure du tablier. Un frein mécanique peut être prévu de chaque côté du tablier pour coopérer avec la coulisse correspondante.Generally, the brake blade is the lower blade of the deck. A mechanical brake can be provided on each side of the apron to cooperate with the corresponding slide.
Avantageusement, la mâchoire est montée rotative autour d'un axe horizontal parallèle au plan du tablier déployé. L'organe de coincement peut comprendre deux mâchoires montées rotatives en sens inverse.Advantageously, the jaw is rotatably mounted about a horizontal axis parallel to the plane of the deployed deck. The wedging member may comprise two jaws rotatably mounted in opposite directions.
De préférence, le support sur lequel la mâchoire est montée rotative comporte un corps inséré dans l'extrémité de la partie active inférieure de la lame de freinage, ce corps comportant un axe sur lequel la mâchoire est articulée.Preferably, the support on which the jaw is rotatably mounted comprises a body inserted into the end of the lower active portion of the brake blade, this body having an axis on which the jaw is hinged.
Le support sur lequel la mâchoire est montée rotative peut être formé par un voile vertical solidaire de la partie active inférieure, lequel voile est muni sur son bord supérieur d'un cylindre creux horizontal propre à recevoir un axe de rotation de la mâchoire, la partie active inférieure étant prévue pour s'insérer dans la partie active supérieure.The support on which the jaw is rotatably mounted may be formed by a vertical web integral with the lower active part, which sail is provided on its upper edge with a horizontal hollow cylinder adapted to receive an axis of rotation of the jaw, the part active lower being provided to fit into the upper active part.
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 en détail avec référence aux dessins annexés, mais qui n'est nullement limitatif. Sur ces dessins :
-
Fig. 1 est une vue schématique en perspective, depuis l'avant droite, d'un volet roulant en position de fermeture, avec partie basse arrachée de la coulisse droite. -
Fig. 2 est une vue en perspective du frein mécanique selon l'invention et des extrémités des deux parties actives d'une lame de freinage partiellement représentée. -
Fig. 3 est une vue en perspective éclatée du frein deFig. 2 . -
Fig. 4 est une vue en perspective, à plus grande échelle, du côté intérieur du frein avec les mâchoires en position déployée, sans la lame de tablier. -
Fig. 5 montre, semblablement àFig. 4 , les mâchoires en position rentrée, le corps du frein n'étant pas représenté. -
Fig. 6 est une coupe schématique de la lame de freinage et du frein vus du côté intérieur, alors que les deux parties actives de la lame sont écartées au maximum, avec les mâchoires en position rentrée. -
Fig. 7 est une vue en élévation de l'extérieur du frein avec partie inférieure retirée, les mâchoires étant en cours de déploiement. -
Fig. 8 montre, semblablement àFig. 6 , le frein avec partie inférieure retirée, les mâchoires étant déployées au maximum. -
Fig.9 montre en perspective de l'extérieur une variante avantageuse de réalisation de la lame de freinage et du frein, dans la position où les parties actives sont écartées et le frein desserré. -
Fig.10 montre la lame de freinage dans la position deFig.9 , sans les mâchoires ni le moyen de commande du frein. -
Fig.11 montre de l'extérieur en perspective la lame de freinage et le frein dans la position où les parties actives sont rapprochées et le frein serré, et -
Fig.12 montre la lame de freinage dans la position deFig.11 , sans les mâchoires ni le moyen de commande du frein, les parties actives étant rapprochées.
-
Fig. 1 is a schematic perspective view, from the front right, of a shutter in the closed position, with the lower part of the right slide pulled off. -
Fig. 2 is a perspective view of the mechanical brake according to the invention and ends of the two active parts of a partially represented braking blade. -
Fig. 3 is an exploded perspective view of the brake ofFig. 2 . -
Fig. 4 is a perspective view, on a larger scale, of the inner side of the brake with the jaws in the deployed position, without the apron blade. -
Fig. 5 shows, similarly toFig. 4 , the jaws in the retracted position, the brake body not being shown. -
Fig. 6 is a schematic section of the brake blade and the brake seen from the inside, while the two active parts of the blade are spaced apart as far as possible, with the jaws in the retracted position. -
Fig. 7 is an elevational view of the outside of the brake with the lower part removed, the jaws being deployed. -
Fig. 8 shows, similarly toFig. 6 , the brake with the lower part removed, the jaws being deployed to the maximum. -
Fig.9 shows in perspective from the outside an advantageous embodiment of the brake blade and the brake, in the position where the active parts are spaced apart and the brake released. -
Fig.10 shows the brake blade in the position ofFig.9 , without the jaws or the brake control means. -
Fig.11 shows from the outside in perspective the brake blade and the brake in the position where the active parts are brought together and the brake applied, and -
Fig.12 shows the brake blade in the position ofFig.11 , without the jaws or the brake control means, the active parts being brought together.
En se reportant à
Le tablier 1 comporte, comme illustré sur
Les parties actives 6, 7 de la lame de freinage 8 sont métalliques, avantageusement réalisées en aluminium, ou en alliage léger, filé.The
La partie active 6 est formée par un profilé à section transversale creuse comme illustré sur
Le volet roulant comporte au moins un frein mécanique B. De préférence deux freins mécaniques B sont prévus, respectivement un de chaque côté du tablier 1, à chaque extrémité de la lame de freinage 8.The rolling shutter comprises at least one mechanical brake B. Preferably two mechanical brakes B are provided, respectively one on each side of the
Le frein mécanique B comprend un moyen de commande D sensible au rapprochement des deux parties actives 6, 7, et au moins un organe de coincement K propre à faire saillie transversalement pour un blocage contre une paroi de la coulisse 2a.The mechanical brake B comprises a control means D that is sensitive to bringing the two
L'organe de coincement K comprend de préférence deux mâchoires 13a, 13b montées rotatives en sens inverse autour d'un axe d'articulation horizontal 14 parallèle au plan du tablier déployé. Les mâchoires 13a, 13b sont réalisées en métal, avantageusement en acier traité.The wedging member K preferably comprises two
L'axe d'articulation 14 est prévu sur la tranche verticale extérieure d'un corps de frein 15 se présentant sous la forme d'un bloc métallique sensiblement parallélépipédique, plus épais sur les bords supérieur et inférieur ainsi qu'à la hauteur de l'axe 14. Le bloc 15 est engagé par coulissement horizontal dans la section ouverte de la partie active 6 et est maintenu par frottement ou par tout autre moyen dans cette partie active. La tranche extérieure verticale du bloc 15 est placée dans le plan de l'extrémité de la partie active 6 de sorte que seul l'axe 14 fait saillie par rapport à ce plan. Les deux mâchoires 13a, 13b sont articulées en vis-à-vis sur l'axe 14, selon une disposition croisée.The
Chaque mâchoire 13a, 13b comporte, en partie supérieure dans l'exemple représenté, une came 16a, 16b s'étendant transversalement. A l'opposé de la came par rapport à l'axe de rotation 14, chaque mâchoire comporte un secteur cranté ou denté 17a, 17b propre à venir se bloquer contre une paroi de la coulisse. Les deux parois, dans l'exemple considéré, contre lesquelles viennent se bloquer les secteurs 17a, 17b sont les parois de la coulisse parallèles au plan du tablier déployé.Each
Le moyen de commande D du frein comprend une pièce 18, notamment en matériau de synthèse, ou en matière plastique, qui comporte en partie haute une patte 19 à angle droit. La pièce 18 peut, en variante, être réalisée en acier découpé, et être éventuellement munie sur ses côtés longitudinaux de crans. La patte 19 est engagée et maintenue dans une réservation formant logement supérieur de la partie active 7, au-dessus de la cloison horizontale 7a. La pièce 18, située dans un plan vertical contre la tranche du tablier, comporte, en partie haute, deux extensions latérales 20a, 20b formant enclumes, qui peuvent être droites ou recourbées. Selon la réalisation de
La pièce 18 peut comporter en outre des languettes 21 a, 21 b prévues de manière à se trouver au-dessous des cames 16a, 16b. Les languettes 21 a, 21 b peuvent être recourbées sensiblement à angle droit vers l'intérieur. Ces languettes 21 a, 21 b constituent des contre-enclumes qui ont pour fonction de refermer les mâchoires 13a, 13b, et ainsi d'éloigner les secteurs crantés des parois de la coulisse, lorsque les deux parties actives 6, 7 de la lame s'écartent verticalement l'une de l'autre, par exemple lors de la remontée du tablier.The
La pièce 18 comporte en partie haute et en partie basse des languettes 22 en extension transversale dans le plan de la pièce 18 pour contribuer à son guidage entre les parois 2a, 2b de la coulisse. Les languettes 22 débordent latéralement des crans des secteurs 17a, 17b en position desserrée afin d'empêcher un accrochage non souhaité de ces crans avec la paroi de la coulisse. Les languettes supérieures 22 peuvent en outre servir d'arrêt de butée sous tulipe.The
En partie basse, la pièce 18 comporte une fenêtre rectangulaire 23 dont le grand côté est vertical (
L'extrémité inférieure de la pièce 18 présente une partie recourbée 18a qui est en appui glissant contre la tranche de la lame 8, mais ne rentre pas dans cette lame.The lower end of the
En se reportant aux
La lame de freinage 108 est constituée des deux parties actives 106,107. La partie active inférieure 106 est prévue pour s'insérer dans la partie active supérieure 107.The
Le support sur lequel la mâchoire 13a, 13b est montée rotative est formé par un voile vertical 115 solidaire de la partie active inférieure 106. Le voile 115 est muni sur son bord supérieur d'un cylindre creux horizontal 114 propre à recevoir l'axe d'articulation 124 de la mâchoire. L'axe 124 peut comporter une partie formant vis auto-taraudeuse.The support on which the
La patte supérieure 19 de la pièce enclume 18 vient s'introduire dans une réservation ajustée à sa forme. L'axe d'articulation 124 des deux cames 13a, 13b vient se visser directement dans un trou 114a aménagé dans le cylindre supérieur 114 de la partie active 106, évitant ainsi une pièce intermédiaire et donnant plus de résistance et de fiabilité à l'ensemble.The
Le logement inférieur de la partie active 107 dans lequel est engagé la partie active inférieure 106 comporte, sensiblement à mi-hauteur, deux nervures 25 profilées en T faisant saillie vers l'intérieur et formant ergots d'arrêt et de guidage de part et d'autre du voile 115.The lower housing of the
Le cylindre supérieur 114 comporte, de part et d'autre de sa jonction avec le voile 115, une nervure 26 en saillie radiale propre à venir buter contre un ergot 25 en fin de course basse de la partie 106.The
La lame de freinage 108 constituée des parties 106 et 107 est réalisée en aluminium, ou en alliage léger, filé.The
Ceci étant, le fonctionnement du frein mécanique et du volet selon l'invention est le suivant.That said, the operation of the mechanical brake and shutter according to the invention is as follows.
Lors de la descente du volet, dès que le tablier 1 rencontre un obstacle par son bord inférieur, les deux parties actives 6, 7 ou 106, 107 de la lame de freinage 8 ou 108 se rapprochent. Les enclumes 20a, 20b de la pièce 18 viennent appuyer sur les cames respectives 16a, 16b des mâchoires 13a, 13b qui basculent en faisant saillie vers l'extérieur. Les dents ou crans des secteurs 17a, 17b des mâchoires viennent s'accrocher aux parois de la coulisse correspondante 2a, 2b. On crée ainsi un blocage de la descente.When lowering the shutter, as soon as the
Le poids du tablier 1 qui vient s'accumuler sur la lame de freinage 8, 108 va créer une pression supplémentaire sur les cames 16a, 16b et le blocage sera encore plus puissant car les dents des secteurs crantés 17a, 17b auront tendance à s'écarter davantage et à exercer une pression d'autant plus forte contre les parois intérieures de la coulisse 2a, 2b, avec blocage efficace.The weight of the
Le système proposé est donc autobloquant car plus la charge devient importante, plus les dents des mâchoires 13a, 13b exercent une pression contre les parois intérieures de la coulisse.The proposed system is therefore self-locking because the higher the load, the more the teeth of the
Pour desserrer le système de frein, il faut remonter légèrement le tablier 1 pour permettre aux deux mâchoires 13a, 13b de se rapprocher afin que les dents des secteurs crantés 17a, 17b ne soient plus en interférence avec la coulisse et que le tablier 1 puisse descendre à nouveau normalement dans les coulisses.To loosen the brake system, it is necessary to slightly raise the
La présence des contre-enclumes 21 a, 21 b sous les cames 16a, 16b permet de garantir que les mâchoires 13a, 13b se referment bien lors du soulèvement du tablier 1 puisque les contre-enclumes agissent sur les cames 16a, 16b pour provoquer le rapprochement des mâchoires. Les contre-enclumes 21 a, 21 b procurent l'avantage de bien assurer le mouvement et la position des mâchoires 13a, 13b pour le cas où elles auraient tendance à mal se mouvoir au fur et à mesure du temps, soit à cause de salissures dans le fond des coulisses, soit en raison d'un grippage dû à un début de corrosion. Dans ce cas, le propre mouvement des pièces dû à la gravité ne suffirait plus pour assurer le rapprochement des mâchoires.The presence of the
La présence des contre-enclumes 21 a, 21 b permet également d'assurer un fonctionnement correct avec un volet légèrement incliné, par exemple volet de toit, pour lequel le risque de coincement d'une personne appuyée sur le rebord du volet de toit est réel.The presence of the
Le fonctionnement du frein selon l'invention présente l'avantage de maintenir le tablier 1 bloqué en position, même si l'obstacle arrive à se dégager partiellement. On évite ainsi que le tablier vienne aussitôt appliquer à nouveau sa charge contre l'obstacle en cours de dégagement.The operation of the brake according to the invention has the advantage of keeping the
Claims (8)
- Roller shutter comprising an apron guided on either side by a slide, and able to be wrapped around a tube, the apron consisting of interlinked slats, the top slat being connected to the tube, the roller shutter being equipped with a brake,- the apron (1) comprising a braking slat comprising at least two adjacent active portions (6, 7; 106, 107), of which one is the lower portion (6, 106) and the other is the upper portion (7, 107), which are mounted such that they can move closer to one another when the apron, as it descends, encounters an obstacle or a stop,- the brake being a mechanical brake (B) which comprises a control means (D) which is able to sense the two active portions (6, 7; 106, 107) moving closer to one another, and at least one jamming member (K) connected to the apron in vertical translation,- the jamming member (K) comprising at least two jaws (13a, 13b) mounted so as to be able to rotate on a support connected to one of the active portions (6, 7; 106, 107) of the apron, each jaw (13a, 13b) being made to pivot by the movement of the control means (D) which engages with a cam, that is provided on each jaw, in response to the movement of the two active portions of the apron, wherein the jaws pivot so as to project outwards,- each jaw comprising a notched or toothed section which is able to jam against a wall of the slide,- the notched or toothed section of each jaw being located, with respect to the articulation spindle (14, 124), on the opposite side from a cam (16a, 16b),- each cam (16a, 16b) extending transversely,- the control means (D) of the brake comprising a part (18) located in a vertical plane against the edge of the apron, said part comprising two lateral projections (20a, 20b) which come to press on the respective cams (16a, 16b) of the jaws (13a, 13b),characterized in that- the part (18) is held on the upper active portion (7, 107) and comprises a window (23) through which passes the articulation spindle (14, 124) of each jaw,- the support on which each jaw is mounted so as to be able to rotate comprises a body inserted into the end of the lower active portion of the braking slat, this body comprising the spindle on which the jaw is articulated.
- Shutter according to Claim 1, characterized in that the part (18) comprises tabs (21a, 21b) that project inwards so as to be located below the cams (16a, 16b) in order to close the jaws (13a, 13b) again, and thus move the notched sections away from the walls of the slide, when the two active portions (6, 7) of the slat move vertically away from one another.
- Shutter according to Claim 1 or 2, characterized in that the two active portions are provided in a braking slat (8, 108) of the apron, which slat consists of the two active portions (6, 7; 106, 107) which are fitted together and are able to move with respect to one another in the plane of the deployed apron.
- Shutter according to Claim 3, characterized in that the braking slat (8, 108) constitutes the bottom slat of the apron.
- Shutter according to any one of the preceding claims, characterized in that a mechanical brake (B) is provided on either side of the apron so as to engage with the corresponding slide (2a, 2b).
- Shutter according to any one of the preceding claims, characterized in that each jaw (13a, 13b) is mounted so as to be able to rotate about a horizontal spindle (14; 124) parallel to the plane of the deployed apron.
- Shutter according to any one of the preceding claims, characterized in that the jamming member comprises two jaws (13a, 13b) mounted so as to be able to rotate in opposite directions.
- Shutter according to any one of Claims 1 to 7, characterized in that the support on which each jaw (13a, 13b) is mounted so as to be able to rotate is formed by a vertical web (115) which is secured to the lower active portion (106), which web is provided on its upper edge with a horizontal hollow cylinder (114) that is able to receive a rotation spindle (124) of each jaw, the lower active portion (106) being provided so as to be inserted into the upper active portion (107).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0802274A FR2930586A1 (en) | 2008-04-23 | 2008-04-23 | ROLLING SHUTTER EQUIPPED WITH A BRAKE, BRAKE AND BRAKE BLADE FOR SUCH A WHEEL. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2112321A1 EP2112321A1 (en) | 2009-10-28 |
EP2112321B1 true EP2112321B1 (en) | 2016-06-15 |
Family
ID=40020155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09158459.9A Active EP2112321B1 (en) | 2008-04-23 | 2009-04-22 | Roller blind equipped with a brake |
Country Status (2)
Country | Link |
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EP (1) | EP2112321B1 (en) |
FR (1) | FR2930586A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013011867A1 (en) * | 2011-07-20 | 2013-01-24 | 文化シヤッター株式会社 | Opening/closing body stop device for opening/closing device |
CN105545194A (en) * | 2016-01-25 | 2016-05-04 | 广西顺森门业有限公司 | Multi-wheel electric roller shutter door |
BE1025797B1 (en) * | 2017-12-18 | 2019-07-19 | Building Plastics Nv | RENEWED LOWER COMPOSITION FOR A ROLLER SHUTTER |
PL3623564T3 (en) * | 2018-09-13 | 2022-02-28 | Bhg | Closing or concealing device with apron and break-in prevention system |
FR3085989B1 (en) * | 2018-09-13 | 2021-01-15 | Bubendorff Sa | CLOSING OR HIDDING DEVICE FOR A CONSTRUCTION |
WO2024129526A1 (en) * | 2022-12-16 | 2024-06-20 | Qualitas Manufacturing Incorporated | Rolling shutter cam lock slat |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2705119A1 (en) * | 1977-02-08 | 1978-08-10 | Stahl Gurt Bandweberei | Intruder resistant automatic roller shutter locking mechanism - has lug on slat engaging curved recess in clamping plate on next slat |
ATE84112T1 (en) | 1989-06-09 | 1993-01-15 | Alberts Gmbh & Co Kg G | AUTOMATIC ROLLER SHUTTER SECURITY. |
FR2769340B1 (en) * | 1997-10-06 | 1999-12-03 | Somfy | MOTORIZED SHUTTER |
ES2255383B1 (en) * | 2004-03-18 | 2007-05-16 | Viuda De Rafael Estevan Gimenez, S.L. | LAMAS ROLLING BLIND SYSTEM WITH PERFECTED AUTOBLOCK DEVICE. |
-
2008
- 2008-04-23 FR FR0802274A patent/FR2930586A1/en active Pending
-
2009
- 2009-04-22 EP EP09158459.9A patent/EP2112321B1/en active Active
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FR2930586A1 (en) | 2009-10-30 |
EP2112321A1 (en) | 2009-10-28 |
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