EP4036364A1 - Lamelle eines rollladens - Google Patents

Lamelle eines rollladens Download PDF

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Publication number
EP4036364A1
EP4036364A1 EP22153248.4A EP22153248A EP4036364A1 EP 4036364 A1 EP4036364 A1 EP 4036364A1 EP 22153248 A EP22153248 A EP 22153248A EP 4036364 A1 EP4036364 A1 EP 4036364A1
Authority
EP
European Patent Office
Prior art keywords
slat
sides
fold
blade
long side
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.)
Granted
Application number
EP22153248.4A
Other languages
English (en)
French (fr)
Other versions
EP4036364B1 (de
Inventor
Arnaud Birker
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.)
BHG SAS
Original Assignee
BHG SAS
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 BHG SAS filed Critical BHG SAS
Publication of EP4036364A1 publication Critical patent/EP4036364A1/de
Application granted granted Critical
Publication of EP4036364B1 publication Critical patent/EP4036364B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • 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
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1505—Slat details
    • 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
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1505—Slat details
    • E06B2009/1516—Means to increase resistance against bending
    • 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
    • E06B9/15—Roller shutters with closing members formed of slats or the like
    • E06B2009/1533—Slat connections
    • E06B2009/1538—Slats directly connected
    • E06B2009/1544—Engaging section has curved articulation surfaces

Definitions

  • the present invention relates to the field of window or door type occultation systems made in the walls of buildings, said systems being more precisely roller shutters with slats.
  • the invention relates more specifically to said slats, which are fixed to each other by articulated connections so as to constitute the apron of the roller shutter.
  • the shutters are moreover manufactured in very variable dimensions, since they are supposed to be adapted to equip small windows as well as large picture windows. In the latter case, the mechanical resistance of the blades, in particular to bending, is an issue that is all the more important since they must remain light for reasons of maneuverability. They are also for example made of aluminum or PVC, materials which have mechanical properties suited to the use for which they are intended, combined with great lightness and very good recyclability.
  • Roller shutter slats are also designed to play an acoustic role, so that the shutter improves the sound performance of the building, in terms of insulation, when it is deployed. They can thus be fitted with acoustically insulating materials, which are also selected to reinforce the mechanical strength of the slats. But the question of the noise specific to the shutters also arises, the hollow slats forming a resonance box and being themselves the source of noise when they hit the backstage under the effect of the wind, or in the event of bad weather rain or hail.
  • rolling shutter slats comprising, for example, an outer casing made of profiled aluminum strip with an inner core composed of foam, for example polyurethane.
  • foam for example polyurethane.
  • the main function of the foam is to maintain the aluminum walls at a substantially constant distance when the blade is subjected to a bending or compression force. If it were devoid of foam, a blade subjected to such an effort would see its outer walls approach, causing a significant drop in the overall rigidity of the blade and its inertia.
  • foam substantially improves the acoustic properties of the shutter, the foam being in itself a good acoustic insulator and therefore contributing to increasing the ability of the shutter to soundproof.
  • the object of the present invention is to remedy this deficiency, without impairing the qualities and properties required for the slats, in terms of mechanical strength as well as with regard to sound insulation.
  • the invention proposes a blade which has a sound efficiency of the same order as that of its predecessors, forming an acoustic screen of the same degree, with a structure which does not alter its mechanical qualities of resistance in particular to bending and to the compression.
  • the invention which conventionally relates to a roller shutter slat with acoustic gain, hinged to at least one adjacent slat to form a roller shutter apron capable of closing an opening made in a wall, each slat having long sides and short sides provided with means for attaching to at least one adjacent slat, said sides delimiting an interior volume of the slat, is such that at least one of the long sides is provided with at least one least one longitudinal fold extending, inside the volume, towards the other long side.
  • the blades of the present invention have a configuration which only involves, inside the structure, the material of the casing of the blade. It is a double simplification, at the level of the manufacturing process which is freed from all the operations related to the injection of distinct material, as much as in the structure of each blade, now mono-material and entirely recyclable. The configuration of the invention therefore considerably simplifies recycling.
  • the longitudinal folds developing on the inner face of a long side in the direction of the inner face of the opposite long side limit, like the injected foam of the prior art, the bringing together of said sides and the consequent weakening of the resistance of the blade to certain mechanical stresses such as bending or transverse compression.
  • the fold consists of a part folded back on itself and forming a double thickness, in accordance with the definitions in force for a fold, which includes a notion of contact of the walls or sides next to the fold after fold.
  • the interior folds On an acoustic level, the interior folds also have a real effect in the sense that they first modify the resonance box constituted by the interior volume of the blades. Acoustically, the configuration of the invention provides a real gain at the level of the resonance box. The acoustic performance can also be further improved, depending on the structural configuration of the folds in the volume of the slats and the mechanical treatment that it is possible to subject them to, as will be seen in more detail below.
  • each ply can be in contact with the other long side, making it impossible to bring together even a limited amount of the long sides. It is a mechanical optimization, increasing the overall rigidity of the blades. It is also a configuration that improves acoustic performance, the interior volume then being clearly delimited by smaller compartments, less likely to sound like a sounding board. The walls are less likely to vibrate, and friction between the end of the folds and the opposite long side is likely to dissipate acoustic energy, potentially leading to noise attenuation.
  • each ply is preferably prestressed, which contributes to optimizing the result in terms of acoustic insulation.
  • the stressing of the folds in the interior volume of the slats makes it possible to maintain the acoustic performance despite the absence of foam.
  • the pre-tensioning of the configuration also makes the blades less likely to vibrate.
  • each ply may comprise two sections oriented substantially perpendicular to the long side portion from which it originates, connected at a top of the ply adjacent to or in contact with the other long side.
  • the section of the envelope, at the level of the long side from which the fold starts, then comprises a right-angled fold which extends into an inner face, which returns to itself after the top in a second face connected to the long side to which belongs to the fold by a fold of the same angle.
  • the two sides are joined together, which gives the ply greater rigidity and mechanical strength.
  • the abutment of such compact folds with large opposite sides constitutes a favorable mechanical context for the stressing mentioned above.
  • the blades are made of aluminum.
  • the figure 1 shows a perspective view of a roller shutter slat portion according to the prior art, with polyurethane foam injected into the envelope of the slat;
  • the figure 2 shows a perspective view of an embodiment of a blade according to the present invention, devoid of foam but provided with interior folds.
  • the slats 1 of roller shutters according to the invention comprise two long sides 2, 3 delimiting, with short sides 4, 5, an interior volume 6.
  • the path followed by a portion of apron consisting of such slats 1 juxtaposed can be rectilinear, for example when it is opposite the opening to be closed, or curvilinear during winding aiming to "store" the roller shutter in a box surmounting the opening, the juxtaposed slats 1 must be hinged between them.
  • the articulation allows a pivoting amplitude which may be limited but must however be sufficient to allow the winding and unwinding of the apron in the box of the shutter, typically around a winding cylinder a few centimeters in diameter.
  • the articulation of the slats 1 takes place in practice along their short longitudinal sides 4, 5, at the levels of which each slat 1 is provided with hooking means which are different from one edge to the other but complementary. This complementarity allows the slats 1 to be assembled together in a juxtaposed position, capable of forming together the complete apron.
  • the attachment means between slats 1 are very generally and in principle in the form of hooks 7/housings 8 configured to each cooperate respectively with a housing 8/hook 7 on the short side 4, 5 of the adjacent slat 1.
  • the hooks 7 are fitted in principle to one of the edges of a slat 1 and are able to be attached in the housing 8 of the edge facing the adjacent slat 1.
  • the housings 8 are in the form of slides intended to receive, for example by interlocking, the hook 7 of the adjacent blade 1.
  • the invention As far as the invention is concerned, it is the central part of the blades 1 delimited by the long sides 2, 3 and the short sides 4, 5 which is the subject of the invention.
  • the interior volume 6 delimited by these sides 2 to 5 made of aluminum strip is filled with solidified foam 9 of the polyurethane foam type which has the mechanical function of stiffening the blade 1, in particular by making it possible to maintain the aluminum walls at a constant distance when the blade is subjected to a bending or compressive force.
  • this injected foam 9 serves as sound insulation (it has little effect in thermal insulation, the short sides 4, 5 and the attachment means 7, 8 creating thermal bridges). This solution, technically satisfactory on these two acoustic and mechanical levels respectively, is not so from the point of view of the recycling requirements which tend to be imposed everywhere.
  • the structure is different and no longer has interior foam, it is exclusively in aluminium.
  • the structure of blade 1 of the figure 2 does not change with regard to the short sides 4, 5 or even the inter-blade attachment modes 1, which remain identical: a longitudinal hook 7 and a slide 8.
  • the folds 10, 11, in the structure illustrated in figure 2 that is to say involving contact with the large opposite side 2, are put under stress, which results in increasing the rigidity of the blade 1 and also in improving its performance acoustics.
  • this solution which partitions the interior volume 6 by prestressed interior partitions 10, 11 makes it possible to retain the acoustic barrier previously obtained with the foam 9 (see below). figure 1 ).
  • the inertia of the folds 10, 11 modifies the acoustic impedance of the blade 1, and makes it possible to dispense with the insulation properties of polyurethane foam

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Building Environments (AREA)
EP22153248.4A 2021-01-29 2022-01-25 Lamelle eines rollladens Active EP4036364B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2100887A FR3119414B1 (fr) 2021-01-29 2021-01-29 Lame de volet roulant

Publications (2)

Publication Number Publication Date
EP4036364A1 true EP4036364A1 (de) 2022-08-03
EP4036364B1 EP4036364B1 (de) 2024-02-28

Family

ID=75690409

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22153248.4A Active EP4036364B1 (de) 2021-01-29 2022-01-25 Lamelle eines rollladens

Country Status (4)

Country Link
EP (1) EP4036364B1 (de)
ES (1) ES2985213T3 (de)
FR (1) FR3119414B1 (de)
PL (1) PL4036364T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026012751A1 (en) 2024-07-08 2026-01-15 Irosh S.R.L. Industrial manufacturing process of mixtures of foamed polyurethane granules from the recycling of insulated aluminum slats

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509533A1 (de) * 1963-07-25 1969-07-31 Willy Kirschbaum Rolladen
EP0500059A2 (de) * 1991-02-18 1992-08-26 Showa Orifa Co.,Ltd. Wärmeisolierende Ladenvorrichtung
US5419386A (en) * 1994-03-07 1995-05-30 Magro; Sebastian Insulated roll-up door provided with metal outer and inner walls

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509533A1 (de) * 1963-07-25 1969-07-31 Willy Kirschbaum Rolladen
EP0500059A2 (de) * 1991-02-18 1992-08-26 Showa Orifa Co.,Ltd. Wärmeisolierende Ladenvorrichtung
US5419386A (en) * 1994-03-07 1995-05-30 Magro; Sebastian Insulated roll-up door provided with metal outer and inner walls

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2026012751A1 (en) 2024-07-08 2026-01-15 Irosh S.R.L. Industrial manufacturing process of mixtures of foamed polyurethane granules from the recycling of insulated aluminum slats

Also Published As

Publication number Publication date
FR3119414A1 (fr) 2022-08-05
PL4036364T3 (pl) 2024-05-20
ES2985213T3 (es) 2024-11-04
EP4036364B1 (de) 2024-02-28
FR3119414B1 (fr) 2023-12-15

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