EP0540624A1 - Sound and vibration damping device based on tyres. - Google Patents
Sound and vibration damping device based on tyres.Info
- Publication number
- EP0540624A1 EP0540624A1 EP91913886A EP91913886A EP0540624A1 EP 0540624 A1 EP0540624 A1 EP 0540624A1 EP 91913886 A EP91913886 A EP 91913886A EP 91913886 A EP91913886 A EP 91913886A EP 0540624 A1 EP0540624 A1 EP 0540624A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tires
- sound
- damping device
- vibration damping
- box
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
- E01F8/0064—Perforated plate or mesh, e.g. as wall facing
- E01F8/007—Perforated plate or mesh, e.g. as wall facing with damping material
Definitions
- the present invention relates to a sound and vibration damping device using unitary structures consisting of tires, tire parts or the like in terms of the shape and the absorbent nature of the material.
- the sound damping effect is quite limited insofar as these walls do not make it possible to ensure acoustic sealing, in particular because they allow free spaces between the tires to remain, constituting paths acoustic.
- the present invention aims to provide a device of sound and vibration damping of the aforementioned type overcoming the drawbacks exposed above, while improving the acoustic damping capacities.
- the present invention relates to a sound and vibration damping device using unitary structures made up of tires, tire parts or elements equivalent in terms of the shape and the absorbent nature of the material, characterized in that that said unitary structures are arranged in at least one non-combustible box so as to delimit elementary deaf chambers, said box comprising a so-called "front" wall provided with openings intended to be facing a source of noise.
- the fact of providing an arrangement of the unitary structures so as to constitute elementary deaf chambers makes it possible to ensure better acoustic sealing compared to existing devices.
- This acoustic seal is further increased by the cooperation of the unitary structures with the walls of the box.
- the elementary deaf rooms constituted by the unitary structures, cause an effect of trapping acoustic waves by the shape of said structures.
- said parts of tires consist of half-tires obtained by a diametrical cutting of tires
- the said half-tires are arranged so as to have their open section opposite the said front wall provided with openings so as to create a focusing effect of the acoustic waves
- said half-tires are arranged so as to present their tread opposite said front wall provided with openings so as to create an effect of divergence of the acoustic waves.
- said half-tires have perforations on their tread opposite the noise source.
- the device for the use of whole tires: - said tires are arranged in contact with each other by their tread, one of their lateral faces being opposite the noise source ; the device then advantageously comprises perforated absorbent flanges placed in the rim holes of said tires so as to promote the penetration and the trapping of sounds inside the tires which constitute the elementary deaf chambers, said flanges causing, according to their shape, a divergence effect or a focusing effect of the acoustic waves.
- said front wall provided with opening is made up of a plate perforated with holes.
- the holes or gills can advantageously be replaced or supplemented by flaps made up of articulated or fixed blades replacing, or completing, said front wall provided with openings.
- Said box consists of two side faces, a bottom, a rear or exterior panel, a cover and said front wall having openings, the latter being placed opposite the noise source;
- the device comprises a first series of tires or parts of tires in contact with said front wall provided with openings and a second series of tires or parts of tires, the two series of tires or parts of tires being separated by a wall, preferably absorbent, which defines, between itself and the rear panel, a deaf chamber;
- - Said device comprises separation plates between two neighboring half-tires
- - Said separation plates have an absorbent cellular structure
- - Said front wall provided with openings has an absorbent cellular structure
- the walls and panels of said box and / or the interior of the tires or parts of tires are coated with an absorbent material.
- the tires or parts of tires, used or not, drilled or not, porous or not, are clamped and piled up on each other, or juxtaposed against each other, inside a metal cabinet or box or any other noncombustible or flame retardant material, ensuring by its cellular design, an effective fire stop, one of the sides facing the source of - S - noises are pierced with orifices, each of these tires or parts of tires thus forming an elementary deaf chamber, and creating, according to their arrangement, effects of focusing, divergence, refraction or diffraction of the reflected, incident acoustic waves .
- the present invention therefore makes it possible to produce noise-reduction walls based on tires which perfectly meet safety objectives against the spread of tire combustion and which constitute an excellent acoustic seal, the choice of the adopted embodiment being able to be fixed. by the noise level of the site to be isolated.
- the device according to the invention makes it possible to obtain a local average absorption factor of 0.8 for frequencies between 100 and 700 Hz which constitute the usual frequencies on roads, motorways and railways, while the local average absorption factor for the same frequencies with a so-called "very absorbent" material is around 0.4 *
- FIG. 1 is a front view of a first embodiment of a device according to the invention, the front wall provided with openings being partially omitted;
- FIG. 2 is a sectional view along line II-II of Figure 1;
- FIG. 3 shows an alternative embodiment of the device shown in Figure 1;
- FIG. 4 is a section along line IV-IV of Figure 3 • - Figure 5 is a front view of a second embodiment of the device according to the invention, with omission of the front wall
- FIG. 6 is a sectional view along line VI-VI of figure 5
- FIG. 7 and 8 show respectively from the front and in section, along the line VIII-VIII of Figure 7, a third embodiment of the device according to one invention
- Figures 9 and 11 show in front view, front wall omitted, alternative embodiments of the device shown in Figure 7 and Figures 10 and 12 are sections taken respectively along lines XX and XII-XII of Figures 9 and 11;
- FIG. 13 and 14 show respectively in section and in front view, with omission of the front wall, a fourth embodiment of the device according to one invention using whole tires; and - Figure 15 shows in section an alternative embodiment of the device shown in Figures 13 and 14-
- Figures 1 and 2 show a box Cl in which half-tires 1 or parts of tires are clamped and stacked on each other to ensure a perfect seal with the rear panel 2, not drilled, and the side walls 3 of the box Cl.
- the tread 19 of the half-tires 1 is turned towards the rear panel 2 and the half-tires are in contact with each other by their side faces 21.
- the rear panel 2 and the side walls 3 can be, like the interior of tires, lined with an absorbent material, each part of tire constituting an elementary deaf chamber.
- the clamping of the tire parts against each other, or one on the other, constitutes an anti-noise volume where the reflection of the acoustic waves is focused by the shape of the tire, each tire creating an independent or laminar focusing effect.
- the evacuation of rainwater or washing of the half-tires is done by gravity.
- One of the particularities of an assembly thus constituted is to provide a damper function for mechanical vibrations and to attenuate the noise level generated by the passage of vehicles, cars, trucks, trains, etc., but also for environmental protection near noisy areas (factories).
- the side walls 3 3 the cover 4 and the bottom 5 of the box C1 can be separated from any other non-combustible or non-metallic parts, ensuring the rigidity of the assembly, by flexible joints.
- the front panel 6, on the noise source side is perforated with holes 7, shutters or gills of suitable shapes, to promote the penetration of sound waves inside the device. It can also be made of expanded metal.
- the panels and walls constituting the fire box can be flat, corrugated, ribs or of suitable shapes to increase the rigidity of the assembly.
- FIGS. 3 and 4 are views similar to the previous ones, but this time the box C2 has a rear panel 2 'joined to the side walls 3' by oblique intermediate walls 16, so that the box C2 has, in cross section, a trapezoidal part.
- Axial or inclined flaps 8 and separation plates 9 of absorbent material have been judiciously arranged, the first 8 on the front face of the box C2, the second 9 between the half-tires 1, so that the reflected waves, focused by the form tires, meet absorption surfaces as large as possible.
- the panel where the flaps 8 are fixed can replace or supplement the perforated panel 6 of FIGS. 1 and 2.
- the flaps 8 and the plates 9 can be replaced by an absorbent cellular structure, or any equivalent.
- FIGS. 5 and 6 represent half-tires 1, drilled or not, porous or not, according to another mode of installation, placed in the fire-resistant caissons Cl with their tread 19 on the front face side of the caisson, and their open section 20 on the rear panel side, to create a diverging reflection of the acoustic waves.
- Half tires porous or pierced with orifices 10 make it possible to channel, inside the tire, part of the sounds, the other part being reflected with diverging effect.
- FIGS. 7 and 8 represent an installation mode corresponding substantially to a redoubling of that of FIGS. 1 and 2: two columns of half-tires 1 'and 1 "are juxtaposed and separated by a porous or absorbent wall 11, maintained on the side walls 3 "d fire protection box C3, the half-tires being preferably porous or punctured, so that the acoustic waves coming into contact with them are trapped in the deaf chamber 13 " by transmission or reflection, the part not absorbed waves being reflected with focusing effect.
- FIGS. 9 and 10 show a method of installation corresponding substantially to a repetition of that of FIGS. 5 and 6, repetition similar to that of FIGS. 7 and 8.
- Figures 11 and 12 show a hybrid installation mode between that of Figures 9 and 10 and that of Figures 11 and 12: instead of being oriented in the same way, the half-tires 1 'and 1 "are oriented in the opposite direction.
- Figures 13 and 14 show the assembly of whole tires 18 in a vertical stack between the rear 2 and front panels 6.
- the tires 18 are in contact with each other by their tread 19 and one of their lateral face 21 is in look at the noise source.
- the central parts of the tires can receive absorbent flanges, planes, concave 15 or convex 15 ′, or of any other shape favoring the penetration of sounds towards the interior of the tires, with divergence or focusing effect given by the shape.
- flanges, a porous or absorbent wall 17 being placed against the rear panel 2 in order to ensure the transmission and absorption effect between the tires.
- the evacuation of rainwater or washing water is provided by the orifices 12 made in the treads.
- Figure 15 shows a similar installation mode to the previous one, but with two columns of whole tires 18 ′ and 18 "juxtaposed, the flanges 15 preferably being drilled in order to allow the passage of sounds up to the absorbent wall 11, the volume behind this wall which contains the second column of 18 "tires, playing the 13 'dark room effect •
- One of the methods of installing noise barriers, at the edge of roads, motorways and railways, may consist, for example, of fixing juxtaposed fire-resistant boxes, integral with one another, on a flat or profiled cross member, placed at. minimum 2/3 of the height, laterally, on the rear panel 2, of the caissons, and fixed to posts anchored in the ground, this cross-member being able to be reinforced by a strut.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Tires In General (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9009417A FR2665198B1 (en) | 1990-07-24 | 1990-07-24 | REUSE OF USED TIRES AS A HEARING CHAMBER FOR THE CONSTRUCTION OF SOUND ABSORBING PANELS. |
FR9009417 | 1990-07-24 | ||
PCT/FR1991/000604 WO1992001837A1 (en) | 1990-07-24 | 1991-07-23 | Sound and vibration damping device based on tyres |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0540624A1 true EP0540624A1 (en) | 1993-05-12 |
EP0540624B1 EP0540624B1 (en) | 1994-11-30 |
Family
ID=9399030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91913886A Expired - Lifetime EP0540624B1 (en) | 1990-07-24 | 1991-07-23 | Sound and vibration damping device based on tyres |
Country Status (9)
Country | Link |
---|---|
US (1) | US5359819A (en) |
EP (1) | EP0540624B1 (en) |
JP (1) | JPH05508893A (en) |
AT (1) | ATE114758T1 (en) |
CA (1) | CA2087835A1 (en) |
DE (1) | DE69105509T2 (en) |
ES (1) | ES2066457T3 (en) |
FR (1) | FR2665198B1 (en) |
WO (1) | WO1992001837A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1007239A3 (en) * | 1993-07-07 | 1995-05-02 | Jose Piot | Recycling used tyres |
US5575121A (en) * | 1995-03-07 | 1996-11-19 | Lajaunie; Philippe | Sound barrier wall construction using tire sections |
IT1287815B1 (en) * | 1996-07-09 | 1998-08-19 | Pescale Spa | MIXTURES TO DAMPEN VIBRATIONS AND SOUNDS SOLID IN THE GROUND AND IN BUILDINGS |
KR100414983B1 (en) * | 2001-03-23 | 2004-01-16 | (주)종합건축사사무소그룹예성 | Assembly apparatus building frame |
FR2946670B1 (en) * | 2009-06-16 | 2012-12-21 | Arts | ANTI-NOISE WALL ELEMENT COMPRISING TIRES |
US11560751B2 (en) * | 2019-09-11 | 2023-01-24 | Catalyst Acoustics Group, Inc. | Sound damping door |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7734600U1 (en) * | 1978-04-13 | Stiehler, Christoph, 2000 Hamburg | Soundproof wall element with supports | |
US3951384A (en) * | 1975-03-20 | 1976-04-20 | Hildreth Jr Robert E | Impact absorbing device |
AT369461B (en) * | 1980-07-07 | 1983-01-10 | Mayreder Kraus & Co Ing | SOUND ABSORBING WALL OR CEILING |
DE3308651A1 (en) * | 1983-03-11 | 1984-09-13 | Bauer, Gotthart, 7022 Leinfelden-Echterdingen | Network consisting of tyre-shaped bodies |
WO1987002399A1 (en) * | 1985-10-17 | 1987-04-23 | Gasser & Co.; | Noise-absorbing greenary-carrying structure |
FR2612217A1 (en) * | 1987-03-13 | 1988-09-16 | Rousset Michel | Noise-reducing screens made of prefabricated elements |
-
1990
- 1990-07-24 FR FR9009417A patent/FR2665198B1/en not_active Expired - Lifetime
-
1991
- 1991-07-23 US US07/960,366 patent/US5359819A/en not_active Expired - Fee Related
- 1991-07-23 JP JP91512794A patent/JPH05508893A/en active Pending
- 1991-07-23 EP EP91913886A patent/EP0540624B1/en not_active Expired - Lifetime
- 1991-07-23 WO PCT/FR1991/000604 patent/WO1992001837A1/en active IP Right Grant
- 1991-07-23 CA CA002087835A patent/CA2087835A1/en not_active Abandoned
- 1991-07-23 ES ES91913886T patent/ES2066457T3/en not_active Expired - Lifetime
- 1991-07-23 AT AT91913886T patent/ATE114758T1/en not_active IP Right Cessation
- 1991-07-23 DE DE69105509T patent/DE69105509T2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9201837A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2066457T3 (en) | 1995-03-01 |
FR2665198A1 (en) | 1992-01-31 |
FR2665198B1 (en) | 1992-11-06 |
DE69105509D1 (en) | 1995-01-12 |
WO1992001837A1 (en) | 1992-02-06 |
ATE114758T1 (en) | 1994-12-15 |
US5359819A (en) | 1994-11-01 |
DE69105509T2 (en) | 1995-07-13 |
JPH05508893A (en) | 1993-12-09 |
EP0540624B1 (en) | 1994-11-30 |
CA2087835A1 (en) | 1992-01-25 |
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