EP2573310A2 - Akustisches Profilelement - Google Patents

Akustisches Profilelement Download PDF

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Publication number
EP2573310A2
EP2573310A2 EP12185732A EP12185732A EP2573310A2 EP 2573310 A2 EP2573310 A2 EP 2573310A2 EP 12185732 A EP12185732 A EP 12185732A EP 12185732 A EP12185732 A EP 12185732A EP 2573310 A2 EP2573310 A2 EP 2573310A2
Authority
EP
European Patent Office
Prior art keywords
openings
wall
absorber material
profiled element
face
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
EP12185732A
Other languages
English (en)
French (fr)
Other versions
EP2573310A3 (de
EP2573310B1 (de
Inventor
Greg Cooper
Christophe Legeais
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.)
Plastil Uk
Original Assignee
GJL
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 GJL filed Critical GJL
Publication of EP2573310A2 publication Critical patent/EP2573310A2/de
Publication of EP2573310A3 publication Critical patent/EP2573310A3/de
Application granted granted Critical
Publication of EP2573310B1 publication Critical patent/EP2573310B1/de
Not-in-force 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
    • E06B9/115—Roller shutters specially adapted for furniture
    • 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
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8476—Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • E04B2001/848—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element
    • E04B2001/8495—Solid slabs or blocks with acoustical cavities, with or without acoustical filling the cavities opening onto the face of the element the openings going through from one face to the other face of the element
    • 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
    • E06B2009/1533—Slat connections
    • E06B2009/1538—Slats directly connected
    • E06B2009/1544—Engaging section has curved articulation surfaces
    • 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
    • E06B2009/17069—Insulation

Definitions

  • profiled element More particularly, it is a shaped member that can be hingedly connected to other adjacent profile members to form a curtain or a wall panel. It also relates to furniture including such curtains.
  • the arrangement of second openings in the absorber material is advantageous in that sound propagating to the shaped member penetrates the second openings and is absorbed into the absorber material as it penetrates through said second openings.
  • the use of profiled elements of the aforementioned type and properly oriented in a work space can acoustically isolate areas within the same workspace.
  • the result is a quieter office environment and therefore a more conducive work environment.
  • noise in the work environment is a source of stress. It is therefore necessary to control the sound level and to implement means such as those mentioned above to reduce it.
  • the characteristic that the absorber material comprises second openings is intended to prevent the propagation of noise.
  • Acoustic absorbers such as rock wool, glass, hemp, or cellulose act as dampers in a system mass-spring-mass allowing a good sound insulation with less weight.
  • the sound wave When a sound wave is directed to a wall, the sound wave can be absorbed, reflected, or transmitted.
  • a hard material will tend to reflect the sound wave more directly than an absorber material. Conversely, an absorber material will be more likely to absorb the sound wave than a hard material.
  • the profiled element according to the aforementioned solution has the advantage of having only one wall, which defines a hollow space in which is disposed an absorber material.
  • the shaped element comprises a face having absorption properties and another face having relatively lower absorption properties.
  • this allows to have a face, that relative to the absorbent material disposed in the hollow space, relatively large.
  • the waves directed towards the absorbent material are directed towards the absorber material and are mainly absorbed in the absorber material.
  • the other face, that defined by the wall defining at least partially a hollow space has relatively lower absorption properties, and constitutes an insulating material. Unlike the absorber material, the acoustically insulating material tends to reflect the sound waves.
  • This solution has the advantage of having a large wave portion which is absorbed directly by the material absorber. In addition, few waves are reflected directly by the absorber material.
  • the absorber material includes second openings. These second openings allow for a part of the sound waves to propagate in the secondary openings, so that they are absorbed by the absorbing material as and when they spread in the openings, resulting in an improvement of the absorption of sound waves by the absorber material.
  • the sound waves passing through the second openings are waves that will not be reflected by the absorber material, which allows concomitantly to reduce the echo phenomenon on the side of the source space of the sound waves.
  • hollow space a space whose contour is defined by a re-entrant curve, a concavity.
  • the concave character defined by the wall then makes it possible to improve the absorbance defined by the assembly constituted by the absorber material and the wall since, by way of example, a part of the remaining sound waves propagating first in the material
  • the absorber may, for the first time, be reflected by the wall defining the hollow space, before being re-scattered in the absorber material and - depending on the geometry of the wall and the orientation of the part of the remaining waves - be reflected a second time by the wall defining the hollow space to be rebroadcast in the material etc.
  • the hollow nature of this space thus makes it possible to increase the absorption ratio of this profiled element by allowing in particular the absorbing material to reduce the amplitude of the maximum sound waves.
  • the concavity of this space could therefore be adapted according to the angular orientation of the waves sound relative to the profiled element, particularly with respect to the geometry of the absorber material and the wall.
  • the present invention advantageously provides that the first and second openings are of substantially identical shapes.
  • Arranging such openings with substantially identical shapes in particular makes it possible to reduce the phenomenon of reflection of the waves that can take place on the wall defining a hollow body.
  • this makes it possible to avoid an arrangement, such as that represented on the figure 3 of DE202009014 wherein the sound waves pass through the second openings of the absorber material before being reflected by the wall without the absorber material slowing down the propagation of the sound waves.
  • the fact that the first and second openings are of substantially identical shapes and that they communicate with each other makes it possible to increase the absorption ratio of the profiled element since a lesser proportion of the sound waves is reflected.
  • Noise has many psychological consequences. A noise even at low volume acts on our psyche without our being aware of it and, in particular, as a result of loss of attention or concentration, a feeling of tiredness, nervousness, irritability.
  • the present solution aims to avoid these inconveniences and to propose means for reducing the ambient noise within a space, or within two compartmentalized spaces.
  • the absorber material has a first face in contact with the wall and a second free face.
  • Arranging the absorber material so that it has a face in contact with the wall and another face left free advantageously simplifies the precautions of use for the workers, the precautions of use for the materials on the lines of manufacture, and the mounting precautions of the profiled element. This reduces the manufacturing time and reduces the manufacturing cost of the profiled element.
  • the absorber material has a free face so as to extend the absorption means of the profiled element, and in particular the operating surface to which the sound waves are propagated.
  • the second openings pass through the second face perpendicularly to the plane of said second face.
  • the profiled element comprises two lateral edges provided with articulation means making it possible to articulate with respect to one another two such identical adjacent profiled elements.
  • the first and second openings are spaced regularly, the first between them, the seconds between them.
  • the regular spacing of the different openings advantageously makes it possible to have an acoustically absorbent or insulating profiled element in a homogeneous manner over its entire surface.
  • the absorbent material comprises sawdust, and a polymer.
  • an assembly comprising a plurality of adjacent profiled elements interconnected by articulation means, in which together the second free faces define, step by step, and together a substantially flat surface.
  • a curtain comprising at least one profiled element as defined in one of the preceding claims.
  • a non-articulated wall panel comprising at least one profiled element as defined in one of the preceding claims.
  • a desk cabinet comprising at least one movable wall for opening and closing the cabinet and a wall in which the fixed wall and / or the movable wall comprises / comprise at least one profiled element as defined above.
  • a part of the persistent sound, not absorbed by the profiled element passes through the rear part of the profiled element and is diffused in the hollow body defined in the cabinet.
  • the synergy of the phenomenon of absorption by the absorber material with the diffusion phenomenon in the hollow body of the cabinet, has the effect of reducing the echo.
  • a profiled element 1 comprises a wall 10 and an absorber material 20.
  • the wall 10 defines a profile 11. It defines at least partially a hollow space 12.
  • this wall 10 may be plastic, aluminum. It can also be made from any other suitable material to define a profile 11 a priori stiffer than the absorbent material and a priori higher density than that of this absorbent material. For example, it can be done through an extrusion process.
  • the wall 10 has first openings 13.
  • these openings 13 define a general shape of cylinder or cone, and are spaced regularly between them.
  • These openings 13 are holes passing completely through the wall from one side to the other, and in particular according to its thickness.
  • the first openings 13 communicate with the hollow space.
  • the wall 10 has a first connection means 16 and a second connection means 17 arranged on the opposite side, along the length of the profile 11, to said first connection means 16.
  • the first 16 may consist of a means female connection 16 and the second 17 in a projected part forming male connection means 17 and adapted to cooperate with said female connection 16.
  • the second connection means 17 may be flexibly bonded to the wall by means of a hinge 18 preferably made of plastic material.
  • the absorber material 20 preferably made of a cellular material, is disposed in the hollow space 12 and It includes second openings 21.
  • these second openings 21 may define general cylinder or cone shapes and are regularly spaced from each other. These openings 21 are holes completely passing through the absorber material 20 from one side to the other, and in particular according to its thickness.
  • the absorber material 20 has a first face 22 in contact with the wall and a second free face 23. As can be seen in the figures, the material extends along the profile 11, over the width of the profiled element 1, it extends on each of its sides, to the vicinity of the lateral edges 14.
  • the absorber material 20 completely fills the hollow space 12 - except for the second openings 21 defined in the absorbent material 20. In another embodiment, it may also partially fill the hollow space 12.
  • the second openings 21 pass through the second free face 23 perpendicular to the plane (P) of said face 23. It is conceivable that the second openings 21 are inclined relative to the normal (N) of the second face 23 free.
  • the first face 22 and the wall are secured by means of attachment (not shown).
  • the absorber material 20 comprises sawdust, and a polymer.
  • the material 20 is composed of about 40% of sawdust or sawdust derivatives and about 60% of polymer, not counting the optional additives.
  • the first 13 and second 21 openings respectively of the wall 10 and the absorber material 20 are of substantially identical shapes and communicating with each other. As shown in figure 2 the first 13 and second 21 apertures are aligned.
  • the axes (A) of the first openings and the axes (B) of the second openings are two-by-two.
  • the first 13 and second 21 openings are spaced regularly, the first 13 between them, the second 21 between them.
  • the articulation means 15 described above are preferably defined on the lateral edges 14 of the profiled element 1 and make it possible to define an assembly 30. It may be an assembly 30 comprising a plurality of adjacent and linked profiled elements 1. between them by means of articulation 15, in which together the second faces 23 define, step by step, and together a substantially flat surface, for example, as shown in FIG. figure 3 .
  • This assembly 30 may for example define a curtain.
  • the profiled elements 1 are hinged together. It may also be a non-articulated wall panel, or a 40 office cabinet.
  • a cabinet 40 it comprises at least one movable wall 42 for opening and closing the cabinet 40 and a fixed wall 41.
  • the cabinet 40 may have at least one fixed wall 41 or a movable wall 42 comprising a profiled element 1 as referred to by the present application.
  • the profiled elements are oriented so that the absorption means constituted by the absorbent material 20 are directed towards the sound source.
  • the second face 23 is preferably opposite the sound source.
  • the wall 10 is facing the wall, as opposed to the second face 23, which is not facing the wall.
  • the second face 23 is a priori not in contact with the wall.
  • the second face 23 is oriented towards the outside of the cabinet 40, as opposed to the wall 10, which is oriented towards the inside of the cabinet 40, that is to say in hollow body look.
  • the times T1 and T2 of each of the figures 5a and 6a it can be seen the influence, on the one hand, of the arrangement of the absorber material 20 within the hollow space 12 and, on the other hand, of the matching of the shapes of the first 13 and second 21 openings.
  • This influence is observed by observing that the T2 reverberation times are lower than the reverberation times T1, for a given frequency.
  • the T2 reverberation time is even lower when the absorber material 20 is composed of about 40% sawdust or sawdust derivatives and about 60% polymer (not counting the optional additives).
  • the reverberation times are lower for the profiled elements 1 equipped with an absorber material composed of about 40% sawdust or sawdust derivatives and about 60% of polymer (without count optional additives). It is therefore particularly advantageous to use such an absorber material 20.
  • the absorption equivalent area is higher when it is an absorber material composed of about 40% sawdust or sawdust derivatives. of wood and about 60% of polymer (not counting the optional additives). In the facts, this results in better absorption of sound waves in this type of absorber material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
EP12185732.0A 2011-09-23 2012-09-24 Akustisches Profilelement Not-in-force EP2573310B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1158526A FR2980497B1 (fr) 2011-09-23 2011-09-23 Element profile acoustique

Publications (3)

Publication Number Publication Date
EP2573310A2 true EP2573310A2 (de) 2013-03-27
EP2573310A3 EP2573310A3 (de) 2013-04-03
EP2573310B1 EP2573310B1 (de) 2016-12-21

Family

ID=46851894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12185732.0A Not-in-force EP2573310B1 (de) 2011-09-23 2012-09-24 Akustisches Profilelement

Country Status (2)

Country Link
EP (1) EP2573310B1 (de)
FR (1) FR2980497B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3113074B1 (fr) 2020-07-30 2022-10-28 Plastil France Lame acoustique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669445A1 (de) 1994-02-23 1995-08-30 Joseph Legeais Profilstab für einen Vorhang und Möbel mit einem derartigen Vorhang
EP0733771A1 (de) 1995-03-22 1996-09-25 Joseph Legeais Profilierte Leiste für eine vorhangartige Verschlussvorrichtung, Verschlussvorrichtung mit diesen Leisten und Herstellungsverfahren
FR2823652A1 (fr) 2001-04-18 2002-10-25 Joseph Legeais Lame profilee pour fermeture a rideau pourvue de moyens de limitation de bruit
DE202009014787U1 (de) 2009-11-02 2011-03-17 Rehau Ag + Co. Profilelement für Rollläden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022607A (en) * 1953-12-01 1962-02-27 Ohio Commw Eng Co Sound deadening tile
DE1282284B (de) * 1965-03-27 1968-11-07 Eberspaecher J Schallabschirmender Rolladen
JPS55135796U (de) * 1979-03-20 1980-09-26
DE10058166A1 (de) * 2000-11-22 2002-06-06 Tiebel Tor Systeme Rolltor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0669445A1 (de) 1994-02-23 1995-08-30 Joseph Legeais Profilstab für einen Vorhang und Möbel mit einem derartigen Vorhang
EP0733771A1 (de) 1995-03-22 1996-09-25 Joseph Legeais Profilierte Leiste für eine vorhangartige Verschlussvorrichtung, Verschlussvorrichtung mit diesen Leisten und Herstellungsverfahren
FR2823652A1 (fr) 2001-04-18 2002-10-25 Joseph Legeais Lame profilee pour fermeture a rideau pourvue de moyens de limitation de bruit
DE202009014787U1 (de) 2009-11-02 2011-03-17 Rehau Ag + Co. Profilelement für Rollläden
EP2496784A2 (de) 2009-11-02 2012-09-12 Rehau AG + Co Profilelement für rollläden

Also Published As

Publication number Publication date
FR2980497A1 (fr) 2013-03-29
EP2573310A3 (de) 2013-04-03
EP2573310B1 (de) 2016-12-21
FR2980497B1 (fr) 2014-08-15

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