EP3249148B1 - Volet roulant en tissu - Google Patents

Volet roulant en tissu Download PDF

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Publication number
EP3249148B1
EP3249148B1 EP17172583.1A EP17172583A EP3249148B1 EP 3249148 B1 EP3249148 B1 EP 3249148B1 EP 17172583 A EP17172583 A EP 17172583A EP 3249148 B1 EP3249148 B1 EP 3249148B1
Authority
EP
European Patent Office
Prior art keywords
shaped track
lateral
roller
fabric
bottom bar
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.)
Active
Application number
EP17172583.1A
Other languages
German (de)
English (en)
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EP3249148A1 (fr
Inventor
Moreno FRANCALANCI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Palagina SRL
Original Assignee
Palagina SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Palagina SRL filed Critical Palagina SRL
Publication of EP3249148A1 publication Critical patent/EP3249148A1/fr
Application granted granted Critical
Publication of EP3249148B1 publication Critical patent/EP3249148B1/fr
Active legal-status Critical Current
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B9/54—Roller fly screens
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/58—Guiding devices
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—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
    • E06B2009/801—Locking arrangements
    • E06B2009/805—Locking arrangements located on or in the guides
    • 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

Definitions

  • the present invention regards a fabric roller blind according to the preamble of the independent claim number 1.
  • the present fabric roller blind is intended to be advantageously employed for adjustably closing provided building wall openings, in particular of windows, doors, French windows, skylights and similar doors/windows/shutters.
  • the blind, object of the present invention is therefore inserted in the industrial field of production of doors/windows/shutters, or also in the field of production of sun protection fabrics, in the field of mosquito netting or for similar applications.
  • the fabric usually has rectangular form and is provided with an upper edge fixed to the roller and with a lower edge fixed to a bottom bar aimed to pull the fabric itself.
  • the blind comprises two lateral guideways arranged vertically along the corresponding sides of the opening, to which the bottom bar is slidably constrained.
  • the bottom bar comprises an aluminum section closed at the lateral ends by two lateral ends slidably coupled to the respective lateral guideways.
  • Each lateral guideway is obtained with a corresponding aluminum profile of rectangular section, internally hollow and provided with an inner side (facing the inner side of the other lateral guideway) on which a longitudinal slit is obtained into which the corresponding lateral end of the bottom bar is slidably inserted.
  • each lateral guideway is longitudinally extended between an upper end, fixed to the rolling-shutter box, and a lower end closed by a base end fixed to the floor at the lower edge of the opening.
  • the roller of the blind can be actuated, typically by a motor, to rotate so as to move the fabric between a collected position, in which the fabric is wound around the roller with the bottom bar arranged in abutment against the rolling-shutter box, and an extended position, in which the fabric is unwound from the roller to close the opening and the bottom bar is arranged at the base ends placed at the lower ends of the lateral guideways.
  • blinds are known on the market that are provided with a locking mechanism adapted to automatically lock the bottom bar to the base ends when the fabric is brought into the extended position, and to release the bottom bar from the base ends when it is necessary to again wind the fabric around the roller in order to bring the fabric into the collected position.
  • the bottom bar is fixed to the lower edge of the fabric and is extended between two lateral ends thereof slidably engaged with the corresponding lateral guideways.
  • the lateral ends are slidably constrained to the corresponding lateral guideway and in turn provided with a shaped guideway.
  • An elastically oscillating rotor is mounted on each of the base terminals of the corresponding lateral guideways and is provided with a slider element which, when the fabric is situated in the extended position, is inserted in the shaped guideway of the slider element of the bottom bar in order to retain the fabric in the extended position.
  • the shaped guideway has a track which allows the oscillating rotor to block the ascent of the bar following a first descent of the latter, and to consequently free it at a second descent.
  • the slider element Upon release of the bar, the slider element remains coupled to a locking wing of the shaped guideway, blocking the ascent of the bottom bar.
  • the same bar is driven to ascend, overcoming the resistance of the locking wing that is suitably mounted in an elastically pliable manner.
  • the fabric roller blind of the above-described known type has in practice shown that it does not lack drawbacks.
  • One drawback lies in the presence of an elastically pliable element which over time can be broken or which can otherwise be bent, decreasing its retention and hence in the end it can allow the bottom bar to be accidentally uncoupled, for example following a burst of wind.
  • Fabric roller blinds of a mosquito net are also known for example from patent US 6591889 , such blinds provided with the above-described general characteristics, which provide for associating the shaped guideway with the relative track no longer with the terminals of the bottom bar but rather with the base terminal and instead associating a horizontally slidable rod with the lateral terminal of the bottom bar, along which it can slide for several millimeters.
  • the slider element of the rod Upon release of the bar, the slider element of the rod remains coupled to a locking element of the shaped guideway placed to intercept the track in order to block the ascent of the bottom bar.
  • the same bar In order to release the bottom bar from the base terminals, the same bar is driven to descend several centimeters, allowing the track to move the slider element of the rod outside the bulk of the locking element, such that during the subsequent ascent the slider element is free to exit from an outlet opening of the track so as to release the bottom bar in order to allow the winding of the fabric.
  • a first drawback arises from the fact that the slidable rod that translates horizontally travels several millimeters during the steps of coupling and uncoupling with respect to the locking element.
  • the problem underlying the present invention is to provide a fabric roller blind fixed to a bottom bar which allows locking and unlocking the bottom bar itself in a simple and safe manner.
  • Another object of the present invention is to provide a fabric roller blind which is entirely reliable in operation, and in particular capable of ensuring the correct retention of the bottom bar also in the case of sudden movements thereof and which can transmit pulses to the components of the locking device.
  • Another object of the present invention is to provide a fabric roller blind which is entirely efficient in operation, and in particular able to ensure the correct locking and unlocking of the bottom bar, maintaining the vertical travel of the bottom bar limited during the provided operations of locking and unlocking.
  • Another object of the present invention is to provide a fabric roller blind which is structurally simple and inexpensive to manufacture and install.
  • reference number 1 overall indicates the fabric roller blind, object of the present invention.
  • the blind 1 is, in operation, employable for adjustably closing an opening A of a door/window/shutter, e.g. of a window, a door or a French window, obtained in a load-bearing element such as a building wall or the load-bearing structure of any building.
  • a door/window/shutter e.g. of a window, a door or a French window
  • a load-bearing element such as a building wall or the load-bearing structure of any building.
  • the blind 1 comprises a support frame 2 intended to be fixed to the load-bearing element, in which the opening A is obtained, and preferably comprising a rolling-shutter box 3 intended to be positioned above the opening A itself.
  • the rolling-shutter box 3 comprises a hollow tubular body, in particular obtained with an aluminum extrusion, which is extended with axis substantially horizontal between two opposite ends closed by two lateral caps, in particular made of plastic material.
  • the blind 1 also comprises a take-up roller 4 rotatably constrained to the support frame 2, advantageously housed inside the rolling-shutter box 3, and provided with a rotation axis X that is substantially horizontal.
  • a flexible fabric 5 is susceptible of being wound and unwound; such fabric preferably passes through a lower slit of the rolling-shutter box 3.
  • the fabric 5 can be intended for obtaining a darkening screen, e.g. in substitution of a rolling shutter, a shading screen for filtering sunlight or for obtaining a mosquito netting.
  • the fabric 5 can be dedicated to closing the opening of a door/window/shutter in order to protect an internal area from sun and/or from wind and/or, more generally, from the atmospheric conditions of the outside environment.
  • the fabric 5 as a function of its different applications, can be made of synthetic or natural material fabric and it can have the form of a mesh or have a continuous surface of obscurant, filtering or transparent type.
  • the fabric 5 has a preferably rectangular form and is provided, in a manner per se known to the man skilled in the art, with an upper edge fixed to the take-up roller and with a lower edge fixed to a bottom bar 6 arranged parallel to the take-up roller 4 and aimed to pull the fabric 5.
  • the blind 1 also comprises two lateral guideways 7 extended parallel to each other and side-by-side, between which it is susceptible to slide the fabric 5 following its winding and unwinding around the take-up roller 4.
  • each lateral guideway 7 is longitudinally extended according to a respective first extension direction Y, preferably vertical and substantially orthogonal to the rotation axis X of the take-up roller 4, between an upper end 8 thereof, preferably arranged at the rolling-shutter box 3, and an opposite lower end 9 intended to be arranged at the lower edge of the opening A, e.g. on a floor or on a windowsill.
  • the two lateral guideways 7 are intended to be arranged along corresponding sides of the opening A and to be fixed to the load-bearing element (in which the opening A itself is obtained), e.g. by means of anchorage screws.
  • each lateral guideway 7 is preferably obtained by means of extruded metal sections, in particular of aluminum, and is provided with a transverse section with substantially C-shaped form.
  • each lateral guideway 7 is provided with an open side 10, arranged facing the open side 10 of the other lateral guideway 7, and on which a longitudinal slit 11 is obtained in which the bottom bar 6 is slidably constrained.
  • the bottom bar 6 of the blind 1, fixed to the lower edge of the fabric 5, is longitudinally extended along a second direction of extension Z parallel to the rotation axis X of the take-up roller 4, between two lateral ends thereof 14 slidably engaged with the respective lateral guideways 7.
  • the bottom bar 6 is internally hollow and preferably comprises a central body 6', for example constituted by a metal section of extruded aluminum, at whose ends the lateral ends 14 are mechanically mounted.
  • the latter are preferably made of plastic material, and are placed to laterally close the central body 6' of the bottom bar 6.
  • each lateral end 14 of the bottom bar 6 is provided with an enlarged base portion 14', mechanically associated with the lateral end of the central body 6', and a connection portion 140 projectingly extended from the base portion 14' towards the corresponding lateral guideway 7 and slidably inserted in the longitudinal slit 11 of the latter.
  • the blind 1 also comprises movement means (not illustrated in the enclosed figures) mechanically connected to the take-up roller 4 and adapted to rotate the latter in order to move the fabric 5 between a collected position, in which the fabric 5 is wound around the take-up roller 4, and an extended position, in which the fabric 5 is unwound from the take-up roller 4 to at least partially close the opening A.
  • movement means (not illustrated in the enclosed figures) mechanically connected to the take-up roller 4 and adapted to rotate the latter in order to move the fabric 5 between a collected position, in which the fabric 5 is wound around the take-up roller 4, and an extended position, in which the fabric 5 is unwound from the take-up roller 4 to at least partially close the opening A.
  • the bottom bar 6 when the fabric 5 is in the collected position, the bottom bar 6 preferably abuts against the rolling-shutter box 3 and, when the fabric 5 is in the extended position, the bottom bar 6 is placed at the lower ends 9 of the lateral guideways 7 with the fabric 5 unwound for the substantially total closure of the opening A.
  • the fabric 5 is therefore completely guided in its winding and unwinding following the rotation of the take-up roller 4, with its lateral edges advantageously engaged in rails (not illustrated) placed inside the lateral guideways 7, and with the lower edge fixed to the bottom bar 6 in turn engaged in the lateral guideways 7 themselves.
  • the bottom bar 6 keeps the fabric 5 itself stretched and is moved, remaining horizontal, with its lateral ends 14 engaged with the lateral guideways 7.
  • the aforesaid movement means are of manual type and comprise, in a per se entirely conventional manner, a winding spring connected to the take-up roller 4 and housed together with the latter within the rolling-shutter box 3 of the blind 1.
  • the unwinding of the fabric 5 will occur by manually overcoming the elastic reaction force of the aforesaid spring.
  • the movement means can be obtained in a different manner, in a way that is per se entirely conventional, with a motor housed inside the take-up roller 4, advantageously at one end thereof.
  • the blind, object of the invention then comprises at least one guide body 13 mechanically associated with a lateral end 14 of the bottom bar 6 (and preferably two guide bodies 13 associated with the two corresponding lateral ends 14).
  • Each guide body 13 defines a shaped track 15, delimited by a bottom and by a guide profile described in detail with reference to the single sections.
  • the shaped track 15 is intercepted by at least one locking element 16, advantageously projecting from the bottom and preferably shaped with a concavity directed at least partially upward so as to define a housing seat for a slider element 17A described in detail hereinbelow.
  • the shaped track 15 is also provided with at least one inlet opening 15A and with at least one outlet opening 15B susceptible of being crossed by the slider element 17A.
  • the blind 1 also comprises at least one oscillating rotor 17, which is arranged at the lower end of at least one of the lateral guideways 7 and preferably rotatably engaged with at least one base terminal 18 mounted at the end of the lateral guideway 7. More in detail, the oscillating rotor is provided with an engagement portion 17A susceptible of sliding in a guided manner within the shaped track 15 of the guide body of the lateral end 14 of the bottom bar 6, in order to be engaged with and disengaged from the locking element 16 and consequently retaining and releasing the bottom bar 6.
  • the shaped track 15 is provided with one or more steps 19 descending in the travel direction from the inlet opening 15A to the outlet opening 15B and the slider element 17A of the oscillating rotor 17 is susceptible of sliding on the bottom of the shaped track 15 in its travel direction, overcoming the step 19 or the steps 19 if there is more than one.
  • the slider element 17A is susceptible of sliding on the bottom of the track 15 even only for sections close to the steps 19 and not necessarily for the entire path of the track 15.
  • the slider element 17A and hence the oscillating rotor 17, is constrained once it has entered into the shaped track 15 to follow the entire path in order to exit from the same track, ensuring the correct locking and release of the same slider element 17A with respect to the guide body 13.
  • each oscillating rotor 17 is rotatably engaged to the corresponding base terminal 18 by means of a pin 170 integral with the same oscillating rotor 17 and advantageously inserted in two through holes made on two shoulders projecting from the base terminal 18.
  • the oscillating rotor 17 is preferably constituted by a small elongated rod transversely and projectingly bearing fixed thereto, at a first free end, the slider element 17A, and at the second constrained end, the pin 170.
  • the oscillating rotor 17 is made of plastic material and is obtained in a single body both with its slider element 17A and with its pin 170.
  • the slider element 17A advantageously has a prismatic form, e.g. with triangular base.
  • the oscillating rotor is maintained pressed by elastically pliable means in a transverse direction with respect to its rotation plane.
  • the oscillating rotor 17 is elastically thrust transversely with respect to the rotation plane of the rotor by a spring mounted between the same oscillating rotor 17 and the base terminal 18 and for example mounted coaxially around the pin 170.
  • the oscillating rotor 17 is thrust by the elastically pliable means towards the bottom of the shaped track 15 placed beyond the step, so as to encounter the rise of the step as insuperable constraint with respect to movements in the direction opposite that of travel of the shaped track 15.
  • connection portions 140 of the lateral ends 14 mounted at the ends of the central body 6' of the bottom bar 6 vertically slide in the lateral guideways 7, being advantageously dimensionally engaged at their interior due to two first sliding portions 140', 140" (see figure 2 ) which slide on the internal faces of the lateral guideways 7.
  • the guide bodies 13 of the lateral ends 14 of the bottom bar 6 are advantageously slidably movable with respect to the central body 6' of the bottom bar 6 and with respect to the connection portions 140 of the same lateral ends 14, preferably for a travel of less than a centimeter, in order to compensate for misalignments along the lateral guideways 7.
  • the guide bodies 13 are provided with an elongated rod-like appendage 13' which is inserted in a groove 13" made in the central body 6' of the bottom bar 6.
  • each guide body 13 is slidably engaged with respect to the overlying connection portion 140 due to a coupling of its slide appendage 130 in a track 130' obtained on a lower edge of the connection portion 140.
  • the guide body 13 is slidably mounted on the corresponding lateral end 14 along an axis parallel to the extension of the bottom bar 6 in order to always be maintained perfectly centered with respect to the lateral guideways 7 on which it advantageously slides due to two second sliding portions 130', 130" (see figure 2 ).
  • the guide body 13 is advantageously provided with a stem 1300, which is slidably inserted in a guided manner to size within a through hole obtained on the base portion 14' of the lateral end 14 of the bottom bar 6.
  • the shaped track 15 of the guide body 13 comprises three sections 151, 152 and 153 in succession in the direction V of travel by the slider element 17A.
  • the first section 151 is delimited by a first bottom 151A and by a first upper guide profile 151B.
  • the latter has a final portion 151B' having an orientation directed towards an end stop 20 and provided with at least one first vertical component 151BV oriented downward and with a first horizontal component 151BO, oriented in a first directed aimed in accordance with the travel direction of the shaped track 15.
  • the shaped track 15 then comprises, in addition to the end stop 20 placed at the end of the first section 151, also the locking element 16, substantially arranged below the end stop 20.
  • the first section 151 of the shaped track 15 is indicated with a solid line in figure 5 and provides for an initial ascent part relative to the engagement element 17A up to the end stop 20 and a final descent part relative to the engagement element 17A from the end stop 20 to the locking element 16.
  • the second section 152 of the shaped track 15 is in turn delimited by at least one second bottom 152A and by at least one second upper guide profile 152B.
  • the latter has at least one second vertical component 152BV oriented downward, and a second horizontal component 152BO oriented in the above-specified first direction.
  • end stop 20 is advantageously obtained, in the case of the enclosed figures, with a face of the second upper guide profile 152B of the second section 152.
  • the third section 153 of the shaped track 15 is in turn delimited by at least one third bottom 153A and by at least one third guide profile 153B.
  • the latter has, at a final section thereof 153B', at least one third vertical component 153BV oriented upward, and a second horizontal component 153BO oriented in a second horizontal direction opposite the above-specified first horizontal direction .
  • the locking element 16 is partially directed upward or in a direction opposite the final portion 151B' of the first upper guide profile 151B of the first section 151 of the shaped track and opposite the second upper guide profile 152B of the second section 152 of the shaped track 15.
  • the locking element 16 also has a transfer guide profile 16B provided with a fourth vertical component 16BV oriented upward, and a fourth horizontal component 16BO oriented in the above-specified first direction.
  • the engagement element 17A being moved due to the horizontal components of the guide profiles of the track, bounces first on the final portion 151B' of the first upper guide profile 151B of the first section 151, then on the transfer guide profile 16B of the locking element 16 and then on the upper guide profile 152B of the second section 152.
  • At least one first step 19A is arranged at the first bottom 151A of the first section 151. More particularly, such first step 19A is arranged a bit higher than the locking element 16 (intercepted by the engagement element 17A in the initial part of the relative ascent of the first section 151 up to the end stop 20), in order to prevent, during the provided step of coupling the bottom bar 6, the slider element 17A of the oscillating rotor 17 from entering the first section 151 in a direction opposite that of travel V of the shaped track 15 and it does not go towards the end stop 20 of the first section 151.
  • the shaped track 15 is preferably also provided with a second step 19B substantially arranged on the bottom of the shaped track 15 itself between the end stop 20 and the locking element 16 (intercepted by the engagement element 17A in the relative final part of the descent of the first section 151 to the locking element 16), in order to prevent the slider element 17A - which is descending with respect to the bottom bar 6 that ascends - from returning towards the inlet opening 15A.
  • the shaped track 15 is preferably also provided with a third step 19C substantially arranged at the third bottom of the third section 153, in order to prevent, during the descent of the bottom bar 6, that the slider element of the oscillating rotor moves into the outlet opening 15B rather than the inlet opening 15A.
  • Such third step 19C is in particular arranged at the outlet opening 15B of the shaped track 15.
  • the rotation movement of the oscillating rotor 17 requires a very low force, which is applied in a position that is distal from the rotation axis X of the pin 170 of the oscillating rotor 17 and with a negligible rotation friction.
  • the tilted surfaces of the guide profiles of the sections of the shaped track 15, in order to move the slider element 17A of the oscillating rotor 17, can have a tilt greater than the conventional 45° used in the coupling/uncoupling devices of the known conventional blinds.
  • the first upper guide profile 151B of the first section 151 of the shaped track 15 is tilted with respect to the vertical with an angle A greater than 45° in order to decrease the vertical travel of the locking element.
  • the second upper guide profile 152B of the second section 152 of the shaped track 15 is tilted with respect to the vertical with an angle B greater than 45°, still in order to decrease the vertical travel of the locking element.
  • the first section 151 of the shaped track 15 is provided with an introduction slide 25 associated with the inlet opening 17A and susceptible of conveying the slider element 17A of the oscillating rotor 17 towards the opening 15A.
  • Such slide 25 guides the slider element towards the inlet opening 15A of the shaped track 15 also by forcing it transversely to the rotation plane of the same oscillating rotor 17, for such purpose being tilted with respect to the rotation plane of the oscillating rotor 17.
  • the blind 1 described up to now mainly regarding structure allows locking and unlocking the bottom bar 6 at the lower end of the lateral guideways 7 due to the engagement and disengagement of the oscillating rotors 17 with respect to the guide bodies 13.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Pest Control & Pesticides (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Blinds (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Claims (10)

  1. Volet roulant en tissu (1) comprenant :
    - un cadre de support (2) destiné à être fixé à un élément porteur dans lequel est réalisée une ouverture (A) ;
    - un rouleau enrouleur (4) assujetti de façon tournante audit cadre de support (2), ayant un axe de rotation (X) essentiellement horizontal, destiné à être placé supérieurement à ladite ouverture (A) ;
    - deux coulisses latérales (7) se développant parallèles entre elles et côte à côte le long de premières directions respectives de développement (Y) essentiellement orthogonales à l'axe de rotation (X) dudit rouleau enrouleur (4) et destinées à être fixées audit élément porteur le long des côtés respectives de ladite ouverture (A) ;
    - un tissu (5) qui s'étend entre un premier bord supérieur fixé audit rouleau enrouleur (4) et son propre bord inférieur et susceptible de coulisser entre lesdites coulisses latérales (7) ;
    - une barre de fond (6) à laquelle est fixé le bord inférieur dudit tissu (5) et qui se développe le long d'une deuxième direction de développement (Z) parallèle à l'axe de rotation (X) dudit rouleau enrouleur (4), entre deux propres terminaisons latérales (14) engagées de façon coulissante dans les coulisses latérales correspondantes (7) ;
    - des moyens de mise en mouvement mécaniquement reliés audit rouleau enrouleur (4) et aptes à mettre en rotation ledit rouleau enrouleur (4) pour mettre en mouvement ledit tissu (5) entre une position repliée, dans laquelle ledit tissu (5) est enroulé autour dudit rouleau enrouleur (4) et une position tendue, dans laquelle ledit tissu (5) est au moins partiellement déroulé par ledit rouleau enrouleur (4) en s'étendant entre lesdites coulisses latérales (7) pour fermer au moins partiellement ladite ouverture (A);
    - au moins un corps de guidage (13) qui est mécaniquement associé à une terminaison latérale (14) de ladite barre de fond (6) et est muni d'une piste façonnée (15), interceptée par au moins un élément de blocage (16) et muni d'au moins une ouverture d'entrée (15A) et d'au moins une ouverture de sortie (15B) ;
    - au moins un rotor oscillant (17), placé au niveau de l'extrémité inférieure d'au moins une desdites coulisses latérales (7), est muni d'un élément curseur (17A) susceptible de coulisser de façon guidée dans la piste façonnée (15) du corps de guidage (13) de la terminaison latérale (14) de ladite barre de fond (6) pour s'engager et se désengager dudit élément de blocage (16) et, en conséquence retenir et relâcher ladite barre de fond (6) ;
    ledit volet (1) étant caractérisé en ce que ladite piste façonnée (15) est munie d'un ou de plusieurs gradins (19) descendant dans le sens du parcours (V) de ladite ouverture d'entrée (15A) à ladite ouverture de sortie (15B) et du fait que l'élément curseur (17A) dudit rotor oscillant (17) est susceptible de coulisser sur le fond de ladite piste façonnée (15) dans ledit sens du parcours (V) en dépassant en descendant lesdits un ou plusieurs gradins (19).
  2. Volet selon la revendication 1, caractérisé en ce que ledit rotor oscillant (17) est élastiquement poussé contre le fond de ladite piste façonnée (15) transversalement par rapport au plan de rotation dudit rotor par des moyens élastiquement souples au niveau dudit gradin (19).
  3. Volet selon la revendication 1, caractérisé en ce que ledit rotor oscillant (17) est élastiquement fléchi vers le fond de ladite piste façonnée (15) transversalement par rapport au plan de rotation dudit rotor oscillant (17), exerçant une pression élastique contre le fond de ladite piste au moins au niveau dudit gradin (19).
  4. Volet selon l'une quelconque des revendications précédentes, caractérisé en que ladite barre de fond (6) comprend un corps central (6') et le corps de guidage (13) de ladite au moins une terminaison latérale (14) de ladite barre de fond (6) est monté de façon coulissante sur ladite partie centrale (6') pour compenser des désalignements des coulisses latérales (7).
  5. Volet selon l'une quelconque des revendications précédentes, caractérisé en ce que la piste façonnée (15) dudit corps de guidage (13) comprend au moins une première portion (151) délimitée par au moins un premier fond (151A) et par au moins un premier profilé de guidage supérieur (151B) ayant au moins un premier composant vertical (151BV) orienté vers le bas ; au moins un fin de course (20) placé à la fin de ladite première portion (151) ; au moins un élément de blocage (16) essentiellement placé inférieurement audit fin de course (20) ; au moins une deuxième portion (152) délimitée par au moins un deuxième fond (152A) et par au moins un deuxième profilé de guidage supérieur (152B) ayant au moins un deuxième composant orienté vers le bas (152BV) ; au moins une troisième portion (153) délimitée par au moins un troisième fond (153A) et par au moins un troisième profilé de guidage inférieur (153B) ; ladite piste façonnée (15) étant dotée d'au moins un premier gradin (19A) disposé au niveau du premier fond (151A) de ladite première portion (151).
  6. Volet selon la revendication 5, caractérisé en ce que ladite piste façonnée (15) est munie d'au moins un deuxième gradin (19B) disposé essentiellement sur le fond de ladite piste façonnée (15) entre ledit fin de course (20) et ledit élément de blocage (16).
  7. Volet selon la revendication 6, caractérisé en ce que ladite piste façonnée (15) est munie d'au moins un troisième gradin (19C) disposé essentiellement au niveau du troisième fond de ladite troisième portion (153).
  8. Volet selon la revendication 5, caractérisé en ce que ledit premier profilé de guidage supérieur (151B) de la première portion (151) de ladite piste façonnée (15) est incliné par rapport à la verticale avec un angle (A) supérieur à 45°.
  9. Volet selon la revendication 5, caractérisé en ce que ledit deuxième profilé de guidage supérieur (152B) de la deuxième portion (152) de ladite piste façonnée (15) est incliné par rapport à la verticale avec un angle (B) supérieur à 45°.
  10. Volet selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite piste façonnée (15) est munie d'une goulotte de guidage (25) associée à ladite ouverture d'entrée (15A) et susceptible d'acheminer vers ladite ouverture d'entrée (15A) l'élément curseur (17A) dudit rotor oscillant (17) en le forçant transversalement par rapport au plan de rotation dudit rotor oscillant (17).
EP17172583.1A 2016-05-24 2017-05-23 Volet roulant en tissu Active EP3249148B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUA2016A003764A ITUA20163764A1 (it) 2016-05-24 2016-05-24 Tenda con telo avvolgibile

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EP3249148A1 EP3249148A1 (fr) 2017-11-29
EP3249148B1 true EP3249148B1 (fr) 2019-04-10

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EP (1) EP3249148B1 (fr)
ES (1) ES2726931T3 (fr)
IT (1) ITUA20163764A1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20120024U1 (it) * 2012-02-22 2013-08-23 Corradi S P A Gruppo di guida, per tende, tendoni per esterni e simili dispositivi

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* Cited by examiner, † Cited by third party
Title
None *

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ITUA20163764A1 (it) 2017-11-24
EP3249148A1 (fr) 2017-11-29
ES2726931T3 (es) 2019-10-10

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