EP3482002B1 - A noise absorbing panel for use in a sound absorbing guard rail system - Google Patents
A noise absorbing panel for use in a sound absorbing guard rail system Download PDFInfo
- Publication number
- EP3482002B1 EP3482002B1 EP17739944.1A EP17739944A EP3482002B1 EP 3482002 B1 EP3482002 B1 EP 3482002B1 EP 17739944 A EP17739944 A EP 17739944A EP 3482002 B1 EP3482002 B1 EP 3482002B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- noise absorbing
- absorbing panel
- panel according
- noise
- stretch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
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- 239000011358 absorbing material Substances 0.000 claims description 34
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- 239000011490 mineral wool Substances 0.000 claims description 9
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Images
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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
- E01F15/0407—Metal rails
- E01F15/0423—Details of rails
-
- 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
- E01F15/00—Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
- E01F15/02—Continuous barriers extending along roads or between traffic lanes
- E01F15/04—Continuous barriers extending along roads or between traffic lanes essentially made of longitudinal beams or rigid strips supported above ground at spaced points
-
- 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
-
- 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
- E01F8/0017—Plate-like elements
-
- 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 noise absorbing panel for use in a sound absorbing guard rail.
- a guard rail is provided at the lateral side of a road with the object of limiting personal injuries by absorbing the energy of a vehicle veering off the road by catching and slowing down the vehicle. Added to this primary function it is also found attractive to provide the guard rails with noise reducing means.
- a sound absorbing guard rail of such kind is known from EP 1 528 158 A1 .
- the sound absorbing panels are made of aluminium or made transparent.
- guard rail with noise reducing measures is known from WO 2010/018028 A1 , where a perforated plate is provided behind the guard rail beam.
- WO 2007/132964 discloses a soundproofing board which is constructed such that several soundproofing boards can be engaged together in vertical and horizontal directions without a separate connection member.
- JP 2000 225322 A discloses a fixture consisting of plural brackets fitted to an existing pillar supporting a sound barrier. A wall face structure is also fitted to the pillar through plural fitting bolts.
- a guard rail In order to ensure road safety and to reduce the risk of personal injuries it is required that a guard rail must be able to absorb the impact of a collision without disintegrating. This requirement is also applicable to the noise reducing means. This requirement is to avoid flying objects and/or sharp fractures which can cause severe personal injuries in case of a collision.
- the casing in aluminium or transparent materials, such as glass or plastic is brittle, costly and may not withstand a vehicle impact without breaking apart.
- the risk of disintegrating the panel during an impact is considered too high and it is therefore an object of the present invention to provide a guard rail with noise reducing means which can withstand the impact of a vehicle colliding with the guard rail.
- this object is achieved by a guard rail of the initially mentioned kind, wherein the noise absorbing panel comprises a noise absorbing material board which is encased in an energy absorbing material as defined in claim 1.
- the noise absorbing panel is contained in an energy absorbing material, e.g. said mesh, whereby an improved noise absorbing panel in a guard rail system may be achieved, which also meets the requirements concerning impact absorption and avoids disintegration at an impact with a vehicle.
- the noise absorbing material is preferably a mineral wool fibre board, which has very good noise-absorbing characteristics.
- the noise absorbing panels can also be made with other materials like foam material, integrated or partial rubber material, integrated or partial plastic material, or other noise absorbing material resistant in regard to weather conditions and wear effects next to traffic ways.
- the energy absorbing material is a stretch-metal netting encasing said noise absorbing material board.
- Stretch-metal or expanded metal provide very good energy-absorbing characteristics as the netting made of stretch-metal can be deformed to a large degree when impacted.
- stretch metal netting it is possible to provide different stretch behaviour in respective stress directions. E.g. it is possible to provide a higher stress resistance and thereby a higher energy absorption in an impact situation in longitudinal direction of the traffic way than in vertical direction. In those directions, where the stretch metal netting provides a higher stress resistance, the meshes of the stretch metal netting may provide a higher amount of deformation.
- the meshes of the stretch metal netting deform less. This can be achieved e.g. by rhombus formed meshes, which have a longer diagonal in vertical direction and a shorter diagonal in the horizontal direction. Thereby, the ability of deformation of the rhombus formed meshes in horizontal direction is higher than in vertical direction. Braking of the panels in any situation, in particular in a crash-situation, is to be avoided.
- the stretch metal may provide a surface structure with different groups of surfaces which are intentionally oriented into a particular direction. Thereby, it is possible to achieve particular optical reflection effects such that impacting light from a vehicle is reflected in preferred directions by certain groups of surfaces of the net material, whereas the impacting light is being dispersed in other less preferred directions.
- inclining the groups of surfaces in preferred directions may also support that particular objects colliding with the net material may slide along the surface of the material with less friction in certain preferred directions, whereas objects impacting from another direction experience higher friction.
- the mineral wool fibre board and more preferably a stone wool material, has very good noise-absorbing characteristics
- another advantage by in particular stone wool as the material is that this material fire-resistant.
- the energy absorbing material i.e. the stretch-metal netting, provides protection of the mineral wool and can further contribute to the energy absorption at an impact due to a collision into the guard rail and the energy absorbing material, i.e. stretch-metal netting, also ensures that the sound absorbing panel does not disintegrate at such an impact.
- This synergy between the sound absorbing material formed e.g. by a mineral wool fibre board and the energy absorbing material is advantageous and results in an improved noise absorbing panel in a guard rail, which also meets the requirements concerning impact absorption and avoids disintegration at an impact with a vehicle.
- stretch-metal netting is meant an expanded metal sheet, which is made by a process of slit and stretch.
- the process may involve a precision die which slits and stretches the sheet material in a single operation.
- Expanded metal is manufactured through cutting and expanding a solid sheet of metal in special machines. The machines cut and stretch the metal, expand it to a seamless mesh without joints. The production contains no welded joints and no woven threads, which contributes to the unique qualities of expanded metal.
- the mesh that is produced after expansion of the cut metal gives the material an excellent carrying capacity.
- the material is then processed through a set of rollers, which adjusts the final thickness.
- the stretch-metal in the netting is a ductile metal capable of absorbing energy while being plastically deformed.
- the stretch-metal is galvanised steel. This is advantageous as it is weather resistant and inexpensive to produce and very ductile and deformable by deforming the mesh structure of the stretch metal netting when impacted. By galvanising the stretched metal sharp edges will also be rounded.
- other types of protective coatings such as plastic coating, paint or the like, may be used.
- the energy absorbing mesh could be a perforated metal sheet, a plastic netting or the like and/or a combination thereof, encasing said noise absorbing material board.
- the netting is a panel which encloses at least the main sides and the top side of the mineral wool fibre board.
- the encasing is made from the stretch-metal netting panel which is bent into a box-like shape around the mineral wool fibre board and with mounting panels provided at each of the end sides.
- the stretch-metal netting panel may be produced with non-stretched areas at each of the end sections for receiving the mounting panels at each end for mounting the sound absorber to the supporting posts.
- any sharp edges or pointy ends in the netting structure may be avoided, thereby reducing any risk of personal injuries to persons when handling the noise absorbing panel or during a collision with the guard rail.
- the noise absorbing panel may be installed in cities e.g. at parapets, this feature of the invention prevents the risk of injuring pedestrians or cyclists.
- the noise absorbing panel is preferably approx. 90 cm in height and approx. 260 cm in length.
- the panels may fit between posts in the usual guard rail structure designs.
- the panels may be positioned behind the post, as viewed from the traffic way, wherein a pair of two consecutive posts can be arranged in a distance of approx. 1 m, 1.3 m, 2 m or 4 m, respectively.
- any dimensioning of the noise absorbing panel is encountered by the present invention.
- the panels may alternatively also be mounted in front of the posts, i.e. between the posts and the guard rail.
- the panels are not directly interconnected or mechanically fixed to one another. Instead, they are mounted to the posts or the guard rail and arranged next to one another without a mutual fixation. In other instances, the panels can be mechanically connected.
- the sound absorbing material board in particular the mineral wool fibre board, may also be provided with a density within the range of 60-150 kg/m 3 , preferably 80-120 kg/m 3 , more preferably 80-100 kg/m 3 .
- noise absorbing panels are provided in a size which is easy to handle during mounting.
- the board is preferably provided with a protective fabric on its road-facing side.
- the mineral fibre board is protected from salt, dirt and the like from the road.
- the fabric may be a fleece, i.e. a non-woven fabric, which is weather and UV resistant ensuring a long lifetime of the sound absorbing panel.
- the protective fabric with a structured surface having different appearances depending on the perspective.
- the fleece and thereby the noise absorbing panel may reflect incident light more or less intensely depending on the actual incident angle.
- the protective fabric with particular light absorbing effects such that it has a different colour depending on the actual incident angle of light or line of vision.
- the fleece may reflect light when illuminated from one driving direction of a traffic way and fully or partially absorb or deflect light when illuminated from the other driving direction of said traffic way.
- this feature may also provide functional benefits when the sound absorbing panel is installed next to a traffic way.
- the noise absorbing panel is provided in either a planar configuration or a curved configuration.
- Another advantage of the stretch-metal netting encasing the mineral fibre board is also that the stretch metal netting is manually deformable so that the noise panel is bendable into a preferred curved shape.
- shorter panels can be used and arranged in a polygonal course for an installation at curved traffic ways.
- the guard rail is made of a beam, preferably made of a steel profile in a predetermined cross-sectional shape.
- the beam may be provided with sound reducing means, such as one or more sections of perforations.
- the guard rail could be a tube or a wire.
- the noise absorbing panel can be provided at the respective axial end portions with end profiles.
- Such end profiles may have I-, H-, U- or C- shape.
- I-, H-shape allows a connection of two consecutive noise absorbing panels which can be introduced in the respective recesses provided by this shape profile.
- U- or C- shaped profiles can be used as end profiles of respective noise absorbing panels in case no further noise absorbing panel is to be connected.
- end portions of noise absorbing panels can be at least partially covered by cover elements.
- cover elements can be formed from material which is elastically deformable and which has good noise absorbing characteristics, e.g from rubber material. It is possible to fix such singular elements to the energy absorbing mesh material on both sides of the noise absorbing panel, respectively.
- cover elements which cover an end portion of the noise absorbing panel by surrounding or encompassing this end portion partially or completely.
- the cover element can be fixed by additional fixing means or it can be clamped to the noise absorbing panel. Holding ribs increasing friction or providing a form fit can be formed to the cover elements in order to engage with the noise absorbing panel, in particular with the end portions of the energy absorbing mesh material.
- the cover element can provide an elastically deformable structure, preferably rounded, in the center of the end face which can be brought in contact with the corresponding elastically deformable structure at an opposing cover element of an approximate noise absorbing panel.
- the elastically deformable structure can be formed by a rounded projection integrally formed within the cover, e.g. with a rounded projection surface. This allows to compensate tolerances when mounting or assembling the system and moreover provides additional noise absorbing characteristics also in the interfaces between two approximate noise absorbing panels.
- the guard rail system is installed at a lateral or median side of a road 2 and comprises a series of vertically oriented supporting posts 4.
- a series of noise absorbing panels 6 are mounted to one side of the supporting posts 4 facing away from the road and a series of longitudinal guard rails 8 are mounted on the other side of the posts 4 facing the road 2.
- assembly profiles 14 are provided to ensure the noise absorbing panels 6 are suitably positioned and aligned.
- the noise absorbing panel 6 comprises a noise absorbing material board 10 which is encased in an energy absorbing mesh 12 (see fig. 3 ).
- FIGS 5 and 6 a second embodiment of a sound absorbing guard rail system according to the invention is shown.
- the guard rails 8 are provided with perforated sections 81, 82 to further increase the sound absorbing characteristics of the guard rail system.
- FIGS 7 a) to c) the absorption of an impact by a guard rail system according to the invention is shown.
- the posts 4 deflects at ground level and the noise absorbing panel 6 is tilted backwards, i.e. away from the road 2, as well as deformed as the energy in the impact is absorbed in this deformation of the noise absorbing panel 6.
- the guard rail 8 breaks away from the posts 4 as shown in fig. 7 c) .
- noise absorbing panel 6 Three embodiments of the noise absorbing panel 6 are shown in figures 8-10 . Common for these three embodiments is that a noise absorbing material board 10 is encased in an energy absorbing mesh 12.
- the material of the noise absorbing material board 10 is preferably a mineral fibre wool, and in particular stone wool material. This material has good sound absorbing characteristics just as the material is fire resistant and the noise absorbing panel 6 made of stone wool can thereby contribute to that the guard rail system can prevent any fire from spreading in case a fire occurs in relation to a road accident with or without vehicle impact in the guard rail.
- Protective profiles 16, 16', 16" are provided between the noise absorbing material board 10 and the energy absorbing mesh 12. In fig. 11 the noise absorbing material board 10 is shown alone and in figures 12-14 the three different designs of the protective profiles 16, 16', 16" are shown.
- the protective profile 16, 16' or 16" may be made of a transparent or non-transparent polymeric material, such as polypropylene, polycarbonate or the like.
- the noise absorbing material board 10 is encased in an energy absorbing mesh 12.
- This mesh 12 is provided as a netting and is preferably made of stretch-metal or also called expanded metal. Such a netting of expanded metal is manufactured through cutting and expanding a solid sheet of metal in special machines. The machines cut and stretch the metal, expand it to a seamless mesh without joints.
- the mesh is hereby made up by ribs 12' and rhombus-like shaped openings 12" as shown in figures 15 and 16 .
- the mesh 12 of expanded metal is advantageous as this type of mesh is highly deformable without breaking and can therefore absorb a high amount of energy in case of an impact and at the same time prevent the noise absorbing material 10 encased in the mesh 12 from being disintegrated and scattered around the in the event of a vehicle impact of the guard rail system.
- the expanded metal mesh is formed such that it is more deformable in the longitudinal direction along the road than in the vertical direction.
- the expanded metal mesh 12 is preferably bent into shape so as to form cover for the front and back sides of the noise absorbing board 10 as well as at least the top side.
- the mesh 12 is also formed so it covers at least a portion of the bottom side of the noise absorbing board 10.
- an assembly profile 14 is provided between the noise absorbing panels 6.
- the profile 14 is made as an H-profile with two exterior flanges 142 and a web flange 144 therebetween.
- two receiving slots 146 are formed on each side of the web flange 144 for receiving the ends of two neighbouring noise absorbing panels 6.
- two U-profiles, or Z-Profiles can be used.
- the guard rail beams 8 are formed from a sheet of metal which is bent into a desired cross-sectional shape.
- the guard rail beam 8 is shaped with upper and lower longitudinal flange portions facing the road and a central flange portion therebetween.
- the upper and lower flange portions are provided with perforated sections 81 and the central flange portion is also provided with a perforated section 82.
- Mounting holes 80 are provided at least at the end portions of the beams 8.
- FIG. 21 and 22 another embodiment is shown of the beam design. This second design differs from the design shown in figs. 18-20 by having non-perforated sections 83 along the beam 8.
- Figures 25 and 26 show cross-sections of two alternative shapes of the guard rail beam 8 relative to the shape shown in fig. 20 , which could be used for the road-facing guard rail beams 8 in a guard rail system according to the invention.
- the perforations may be provided in the guard rail beams 8 with different patterns. In figures 27-30 some different perforation patterns are shown.
- FIG 31 shows a detailed view of an end region of a noise absorbing panels 6 as described above.
- two rubber elements 200 are fixed to the edges of the energy absorbing mesh material 12.
- Each of the rubber elements 200 in cross-section provides a profile with a U-shaped receiving part 202 with rib-like projections 204 and 206.
- each of the rubber elements 200 has a hollow oval ring part 208.
- the rubber elements 200 are fixed to the free edge of the mesh material 12 by means of the receiving parts 202, wherein the rib-like projections 204 and 206 engage the mesh material 12 in order to retain the rubber elements 200 on the free edge of the mesh material 12.
- the hollow oval ring parts 208 which can be elastically deformed, project from the front surface 210 of the noise absorbing panel 6.
- the rubber elements 200 provide a noise damping and mechanically cushioning interface to an approximate wall element or to another noise absorbing panel 6 formed with corresponding rubber elements 200. Moreover, tolerances can be compensated thereby.
- the noise absorbing panel 6 also shows an additional protection layer 212 formed between the noise absorbing material board 10 and the energy absorbing mesh material 12.
- This additional protection layer 212 can be provided for protecting the noise absorbing material board 10 from dirt, water, or other external influences. Moreover, it can provide optical effects, e.g. particular reflection effects or light absorbing effects depending certain angular ranges.
- This additional protection layer can be provided in each embodiment as described above, independent from other structural features described.
- Figure 32 shows an alternative embodiment for the design of an end cover design of a noise absorbing panel 6.
- the noise absorbing panel 6 at its free and is provided with a cover 220 formed from rubber material.
- the cover has bent edge regions 222 which encompass the free ends of the noise absorbing panel 6 and are held by elastic deformation and friction to the end regions of the energy absorbing mesh material 12.
- Fig. 33 shows an embodiment for another cover 230 according to the invention which basically corresponds to the embodiment as described in regard to figure 32 .
- Figure 35 additionally shows, how two opposing noise absorbing panels 6 and 6' are arranged against one another equipped with covers 230, respectively.
- figure 36 additionally shows a perspective view of the cover 230.
- the cover 230 has basically the same shape as shown in figure 32 in regard the cover 220 and it is also formed from elastically deformable material, e.g. rubber.
- the cover 230 provides in its central region a rounded projection 232 with a hollow interior 234, which makes the rounded projection 232 elastically deformable.
- the general shape of the cover 230 is adapted to the geometry of the end side of a noise absorbing panel 6, as can be seen in figure 36 .
- the two corresponding rounded projections 232 and 232' of the respective covers 230 and 230' contact one another and under elastic deformation provide a tight engagement of the two end covers 230 and 230'. This allows to compensate tolerances and provides a tight connection and additional noise damping effects also in the interface between two approximate noise absorbing panels 6 and 6'.
- Figure 34 shows another embodiment which is based on the embodiment according to figure 33 .
- the end cover 240 corresponds in its shape to the end cover 230 as described above, i.e. it also has a rounded projection 242 with a hollow interior 244.
- a partition wall 246 is provided extending from the inner surface of the projection 242 into the noise absorbing material board 10. The partition wall 246 additionally stabilizes the structure of the projection 242.
- Figure 37 shows a further embodiment which is also based on the embodiment according to figure 33 .
- the projection in the central area of the cover 250 the projection is formed by a closed ring-like structure 252 as can be seen in the cross-section with a hollow interior 254.
- the cover 250 is plugged onto the end portion of the noise absorbing panel 6 such that a part, in the example about one fourth of the circumference, of the inner portion 256 of the closed ring-like structure 252 engages the front surface of the noise absorbing material board 10 and protrudes into it to a certain degree. This further stabilizes the cover 250 and allows to compensate tolerances.
- the shape of the cover 250 is similar to the shape as already described in regard to figure 36 .
- this embodiment provides a similar interface between two opposing or approximate noise absorbing panels 6 and 6' wherein the two ring-like structures 252 contact each other under a demanded elastic deformation in order to provide a tight fit with beneficial noise dampening and cushioning characteristics.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Description
- The present invention relates to a noise absorbing panel for use in a sound absorbing guard rail.
- A guard rail is provided at the lateral side of a road with the object of limiting personal injuries by absorbing the energy of a vehicle veering off the road by catching and slowing down the vehicle. Added to this primary function it is also found attractive to provide the guard rails with noise reducing means.
- Accordingly, a sound absorbing guard rail of such kind is known from
EP 1 528 158 A1 . Herein the sound absorbing panels are made of aluminium or made transparent. - Another example of a guard rail with noise reducing measures is known from
WO 2010/018028 A1 , where a perforated plate is provided behind the guard rail beam. -
WO 2007/132964 discloses a soundproofing board which is constructed such that several soundproofing boards can be engaged together in vertical and horizontal directions without a separate connection member. -
JP 2000 225322 A - In order to ensure road safety and to reduce the risk of personal injuries it is required that a guard rail must be able to absorb the impact of a collision without disintegrating. This requirement is also applicable to the noise reducing means. This requirement is to avoid flying objects and/or sharp fractures which can cause severe personal injuries in case of a collision. In the guard rails with noise-reducing measures mentioned above, the casing in aluminium or transparent materials, such as glass or plastic, is brittle, costly and may not withstand a vehicle impact without breaking apart.
- By providing noise-reducing panels described above, the risk of disintegrating the panel during an impact is considered too high and it is therefore an object of the present invention to provide a guard rail with noise reducing means which can withstand the impact of a vehicle colliding with the guard rail.
- According to the invention, this object is achieved by a guard rail of the initially mentioned kind, wherein the noise absorbing panel comprises a noise absorbing material board which is encased in an energy absorbing material as defined in claim 1.
- By the invention it is found advantageous that the noise absorbing panel is contained in an energy absorbing material, e.g. said mesh, whereby an improved noise absorbing panel in a guard rail system may be achieved, which also meets the requirements concerning impact absorption and avoids disintegration at an impact with a vehicle. The noise absorbing material is preferably a mineral wool fibre board, which has very good noise-absorbing characteristics. However, it is realised that the noise absorbing panels can also be made with other materials like foam material, integrated or partial rubber material, integrated or partial plastic material, or other noise absorbing material resistant in regard to weather conditions and wear effects next to traffic ways.
- According to the invention, the energy absorbing material is a stretch-metal netting encasing said noise absorbing material board. Stretch-metal or expanded metal provide very good energy-absorbing characteristics as the netting made of stretch-metal can be deformed to a large degree when impacted. Depending on the design of the stretch metal netting it is possible to provide different stretch behaviour in respective stress directions. E.g. it is possible to provide a higher stress resistance and thereby a higher energy absorption in an impact situation in longitudinal direction of the traffic way than in vertical direction. In those directions, where the stretch metal netting provides a higher stress resistance, the meshes of the stretch metal netting may provide a higher amount of deformation. In those directions where the stretch metal netting has less stress resistance, the meshes of the stretch metal netting deform less. This can be achieved e.g. by rhombus formed meshes, which have a longer diagonal in vertical direction and a shorter diagonal in the horizontal direction. Thereby, the ability of deformation of the rhombus formed meshes in horizontal direction is higher than in vertical direction. Braking of the panels in any situation, in particular in a crash-situation, is to be avoided.
- Moreover, in addition to the mechanical behaviour of the netting made of stretch-metal, in particular in a stress situation, such a material can also provide additional beneficial optical and/or mechanical effects. The stretch metal may provide a surface structure with different groups of surfaces which are intentionally oriented into a particular direction. Thereby, it is possible to achieve particular optical reflection effects such that impacting light from a vehicle is reflected in preferred directions by certain groups of surfaces of the net material, whereas the impacting light is being dispersed in other less preferred directions. Moreover, inclining the groups of surfaces in preferred directions may also support that particular objects colliding with the net material may slide along the surface of the material with less friction in certain preferred directions, whereas objects impacting from another direction experience higher friction.
- Besides that the mineral wool fibre board, and more preferably a stone wool material, has very good noise-absorbing characteristics, another advantage by in particular stone wool as the material is that this material fire-resistant. The energy absorbing material, i.e. the stretch-metal netting, provides protection of the mineral wool and can further contribute to the energy absorption at an impact due to a collision into the guard rail and the energy absorbing material, i.e. stretch-metal netting, also ensures that the sound absorbing panel does not disintegrate at such an impact. This synergy between the sound absorbing material formed e.g. by a mineral wool fibre board and the energy absorbing material, is advantageous and results in an improved noise absorbing panel in a guard rail, which also meets the requirements concerning impact absorption and avoids disintegration at an impact with a vehicle.
- By the term stretch-metal netting is meant an expanded metal sheet, which is made by a process of slit and stretch. The process may involve a precision die which slits and stretches the sheet material in a single operation. Expanded metal is manufactured through cutting and expanding a solid sheet of metal in special machines. The machines cut and stretch the metal, expand it to a seamless mesh without joints. The production contains no welded joints and no woven threads, which contributes to the unique qualities of expanded metal. The mesh that is produced after expansion of the cut metal gives the material an excellent carrying capacity.
- The material is then processed through a set of rollers, which adjusts the final thickness. The stretch-metal in the netting is a ductile metal capable of absorbing energy while being plastically deformed.
- Preferably, the stretch-metal is galvanised steel. This is advantageous as it is weather resistant and inexpensive to produce and very ductile and deformable by deforming the mesh structure of the stretch metal netting when impacted. By galvanising the stretched metal sharp edges will also be rounded. However, it is by the invention realised that other types of protective coatings, such as plastic coating, paint or the like, may be used.
- As an alternative or as a supplement to stretch-metal, the energy absorbing mesh could be a perforated metal sheet, a plastic netting or the like and/or a combination thereof, encasing said noise absorbing material board.
- In an embodiment, the netting is a panel which encloses at least the main sides and the top side of the mineral wool fibre board. Preferably, the encasing is made from the stretch-metal netting panel which is bent into a box-like shape around the mineral wool fibre board and with mounting panels provided at each of the end sides.
- By the invention it is realised that the stretch-metal netting panel may be produced with non-stretched areas at each of the end sections for receiving the mounting panels at each end for mounting the sound absorber to the supporting posts. Hereby, any sharp edges or pointy ends in the netting structure may be avoided, thereby reducing any risk of personal injuries to persons when handling the noise absorbing panel or during a collision with the guard rail. Moreover, as the noise absorbing panel may be installed in cities e.g. at parapets, this feature of the invention prevents the risk of injuring pedestrians or cyclists.
- The noise absorbing panel is preferably approx. 90 cm in height and approx. 260 cm in length. This means that the panels may fit between posts in the usual guard rail structure designs. Alternatively, the panels may be positioned behind the post, as viewed from the traffic way, wherein a pair of two consecutive posts can be arranged in a distance of approx. 1 m, 1.3 m, 2 m or 4 m, respectively. However, any dimensioning of the noise absorbing panel is encountered by the present invention. In particular, it is preferred to provide noise absorbing panels in predetermined standardized dimensions which match to the usual pre-confectioned guardrail sets for different applications. By the invention it is realised that the panels may alternatively also be mounted in front of the posts, i.e. between the posts and the guard rail. According to one embodiment of the invention, the panels are not directly interconnected or mechanically fixed to one another. Instead, they are mounted to the posts or the guard rail and arranged next to one another without a mutual fixation. In other instances, the panels can be mechanically connected.
- In preferred embodiments, the sound absorbing material board, in particular the mineral wool fibre board, may also be provided with a density within the range of 60-150 kg/m3, preferably 80-120 kg/m3, more preferably 80-100 kg/m3. Hereby, noise absorbing panels are provided in a size which is easy to handle during mounting.
- In an embodiment, the board is preferably provided with a protective fabric on its road-facing side. Hereby, the mineral fibre board is protected from salt, dirt and the like from the road. The fabric may be a fleece, i.e. a non-woven fabric, which is weather and UV resistant ensuring a long lifetime of the sound absorbing panel.
- In addition to this feature, it is possible to provide the protective fabric with a structured surface having different appearances depending on the perspective. Thereby it is possible to provide optical effects depending on an actual line of vision. For example, the fleece and thereby the noise absorbing panel may reflect incident light more or less intensely depending on the actual incident angle. It is also possible to provide the protective fabric with particular light absorbing effects such that it has a different colour depending on the actual incident angle of light or line of vision. Thereby, the fleece may reflect light when illuminated from one driving direction of a traffic way and fully or partially absorb or deflect light when illuminated from the other driving direction of said traffic way. Besides design features, this feature may also provide functional benefits when the sound absorbing panel is installed next to a traffic way.
- By the present invention, it is found advantageous that the noise absorbing panel is provided in either a planar configuration or a curved configuration. Another advantage of the stretch-metal netting encasing the mineral fibre board is also that the stretch metal netting is manually deformable so that the noise panel is bendable into a preferred curved shape. As an alternative, if using more rigid less bendable panels, shorter panels can be used and arranged in a polygonal course for an installation at curved traffic ways.
- In an embodiment of the invention, the guard rail is made of a beam, preferably made of a steel profile in a predetermined cross-sectional shape. The beam may be provided with sound reducing means, such as one or more sections of perforations.
- As an alternative to a profile beam, the guard rail could be a tube or a wire.
- According to a further embodiment of the present invention, the noise absorbing panel can be provided at the respective axial end portions with end profiles. Such end profiles may have I-, H-, U- or C- shape. Using end profiles with I-, H-shape allows a connection of two consecutive noise absorbing panels which can be introduced in the respective recesses provided by this shape profile. U- or C- shaped profiles can be used as end profiles of respective noise absorbing panels in case no further noise absorbing panel is to be connected.
- According to a further embodiment of the invention, end portions of noise absorbing panels can be at least partially covered by cover elements. Those cover elements can be formed from material which is elastically deformable and which has good noise absorbing characteristics, e.g from rubber material. It is possible to fix such singular elements to the energy absorbing mesh material on both sides of the noise absorbing panel, respectively. As an alternative, it is possible to provide cover elements which cover an end portion of the noise absorbing panel by surrounding or encompassing this end portion partially or completely. The cover element can be fixed by additional fixing means or it can be clamped to the noise absorbing panel. Holding ribs increasing friction or providing a form fit can be formed to the cover elements in order to engage with the noise absorbing panel, in particular with the end portions of the energy absorbing mesh material. The cover element can provide an elastically deformable structure, preferably rounded, in the center of the end face which can be brought in contact with the corresponding elastically deformable structure at an opposing cover element of an approximate noise absorbing panel. The elastically deformable structure can be formed by a rounded projection integrally formed within the cover, e.g. with a rounded projection surface. This allows to compensate tolerances when mounting or assembling the system and moreover provides additional noise absorbing characteristics also in the interfaces between two approximate noise absorbing panels.
- In the following the invention is described in more detail with reference to the accompanying drawings, in which:
- Fig. 1
- is a schematic perspective view of a sound absorbing guard rail system according to a first embodiment of the invention;
- Fig. 2
- is a schematic front view of said guard rail system of the first embodiment of the invention,
- Fig. 3
- is a side view thereof, and
- Fig. 4
- is a top view thereof;
- Fig. 5
- is a schematic perspective view of a sound absorbing guard rail system according to a second embodiment of the invention, and
- Fig. 6
- is a schematic front view thereof;
- Fig. 7 a)-c)
- is a series of cross-section views illustrating the absorption of an impact by a guard rail system according to the invention;
- Figs. 8-10
- are cross-section views of three embodiments of a noise absorbing panel according to the invention;
- Figs. 11-14
- are cross-section views of elements of each of said three embodiments;
- Fig. 15
- is a detailed front view of a preferred embodiment of a stretch-metal netting according to a preferred embodiment of the invention; and
- Fig. 16
- is a side view of the stretch-metal netting of
fig. 15 ; - Fig. 17
- is a schematic perspective view of an assembly profile for use between two adjacent noise-absorbing panels;
- Fig. 18
- is a front view of a guard rail beam according to an embodiment of the invention with areas of perforations;
- Fig. 19
- is a detailed perspective view of the beam of
fig. 18 ; and - Fig. 20 is
- a cross-sectional view thereof;
- Figs. 21 and 22
- are views of a second embodiment of a guard rail beam; and
- Figs. 23 and 24
- are views of a third embodiment of a guard rail beam;
- Fig. 25 and 26
- are two cross-sectional shapes of guard rail beams;
- Figs. 27-30
- are schematic views of different perforation patterns for the perforations in the guard rail beams of the invention; and
- Figs. 31-39
- show different embodiments for designs for end elements covering end surfaces of noise absorbing panels.
- With reference to
figures 1 to 4 , a first embodiment of a sound absorbing guard rail system according to the invention is shown. The guard rail system is installed at a lateral or median side of aroad 2 and comprises a series of vertically oriented supportingposts 4. A series ofnoise absorbing panels 6 are mounted to one side of the supportingposts 4 facing away from the road and a series oflongitudinal guard rails 8 are mounted on the other side of theposts 4 facing theroad 2. Between thenoise absorbing panels 6 assembly profiles 14 (seefigures 1 and2 ) are provided to ensure thenoise absorbing panels 6 are suitably positioned and aligned. - The
noise absorbing panel 6 comprises a noise absorbingmaterial board 10 which is encased in an energy absorbing mesh 12 (seefig. 3 ). - In
figures 5 and6 a second embodiment of a sound absorbing guard rail system according to the invention is shown. According to this embodiment, theguard rails 8 are provided withperforated sections - In
figures 7 a) to c) the absorption of an impact by a guard rail system according to the invention is shown. As vehicle comes from theroad 2 and collides with theguard rail 8, as indicated by the arrow in the figures, theposts 4 deflects at ground level and thenoise absorbing panel 6 is tilted backwards, i.e. away from theroad 2, as well as deformed as the energy in the impact is absorbed in this deformation of thenoise absorbing panel 6. As the energy is taken out of the impact theguard rail 8 breaks away from theposts 4 as shown infig. 7 c) . - Three embodiments of the
noise absorbing panel 6 are shown infigures 8-10 . Common for these three embodiments is that a noise absorbingmaterial board 10 is encased in anenergy absorbing mesh 12. The material of the noise absorbingmaterial board 10 is preferably a mineral fibre wool, and in particular stone wool material. This material has good sound absorbing characteristics just as the material is fire resistant and thenoise absorbing panel 6 made of stone wool can thereby contribute to that the guard rail system can prevent any fire from spreading in case a fire occurs in relation to a road accident with or without vehicle impact in the guard rail. -
Protective profiles material board 10 and theenergy absorbing mesh 12. Infig. 11 the noise absorbingmaterial board 10 is shown alone and infigures 12-14 the three different designs of theprotective profiles protective profile - As mentioned above, the noise absorbing
material board 10 is encased in anenergy absorbing mesh 12. Thismesh 12 is provided as a netting and is preferably made of stretch-metal or also called expanded metal. Such a netting of expanded metal is manufactured through cutting and expanding a solid sheet of metal in special machines. The machines cut and stretch the metal, expand it to a seamless mesh without joints. The mesh is hereby made up by ribs 12' and rhombus-like shapedopenings 12" as shown infigures 15 and 16 . - The
mesh 12 of expanded metal is advantageous as this type of mesh is highly deformable without breaking and can therefore absorb a high amount of energy in case of an impact and at the same time prevent thenoise absorbing material 10 encased in themesh 12 from being disintegrated and scattered around the in the event of a vehicle impact of the guard rail system. The expanded metal mesh is formed such that it is more deformable in the longitudinal direction along the road than in the vertical direction. The expandedmetal mesh 12 is preferably bent into shape so as to form cover for the front and back sides of thenoise absorbing board 10 as well as at least the top side. Preferably, themesh 12 is also formed so it covers at least a portion of the bottom side of thenoise absorbing board 10. - As mentioned in relation to
figures 1 and2 , anassembly profile 14 is provided between thenoise absorbing panels 6. Infig. 17 an embodiment of theassembly profile 14 is shown. Theprofile 14 is made as an H-profile with twoexterior flanges 142 and aweb flange 144 therebetween. Hereby, two receivingslots 146 are formed on each side of theweb flange 144 for receiving the ends of two neighbouringnoise absorbing panels 6. Alternatively two U-profiles, or Z-Profiles can be used. - In the following
figures 18-30 various embodiments of theguard rail beams 8 are illustrated. Theguard rail beams 8 are formed from a sheet of metal which is bent into a desired cross-sectional shape. In the embodiment shown infigures 18-20 , theguard rail beam 8 is shaped with upper and lower longitudinal flange portions facing the road and a central flange portion therebetween. The upper and lower flange portions are provided withperforated sections 81 and the central flange portion is also provided with aperforated section 82. Mountingholes 80 are provided at least at the end portions of thebeams 8. - In
figures 21 and 22 another embodiment is shown of the beam design. This second design differs from the design shown infigs. 18-20 by havingnon-perforated sections 83 along thebeam 8. - In
figs. 23-24 , yet another variant of the design of the perforations is shown, where only areas 84 around the mountingholes 80 are non-perforated. -
Figures 25 and 26 show cross-sections of two alternative shapes of theguard rail beam 8 relative to the shape shown infig. 20 , which could be used for the road-facingguard rail beams 8 in a guard rail system according to the invention. - The perforations may be provided in the
guard rail beams 8 with different patterns. Infigures 27-30 some different perforation patterns are shown. -
Figure 31 shows a detailed view of an end region of anoise absorbing panels 6 as described above. At the end region of thenoise absorbing panel 6, tworubber elements 200 are fixed to the edges of the energy absorbingmesh material 12. Each of therubber elements 200 in cross-section provides a profile with aU-shaped receiving part 202 with rib-like projections rubber elements 200 has a hollowoval ring part 208. Therubber elements 200 are fixed to the free edge of themesh material 12 by means of the receivingparts 202, wherein the rib-like projections mesh material 12 in order to retain therubber elements 200 on the free edge of themesh material 12. The hollowoval ring parts 208, which can be elastically deformed, project from thefront surface 210 of thenoise absorbing panel 6. Thereby, therubber elements 200 provide a noise damping and mechanically cushioning interface to an approximate wall element or to anothernoise absorbing panel 6 formed with correspondingrubber elements 200. Moreover, tolerances can be compensated thereby. - It is to be added that the
noise absorbing panel 6 also shows anadditional protection layer 212 formed between the noise absorbingmaterial board 10 and the energy absorbingmesh material 12. Thisadditional protection layer 212 can be provided for protecting the noise absorbingmaterial board 10 from dirt, water, or other external influences. Moreover, it can provide optical effects, e.g. particular reflection effects or light absorbing effects depending certain angular ranges. This additional protection layer can be provided in each embodiment as described above, independent from other structural features described. -
Figure 32 shows an alternative embodiment for the design of an end cover design of anoise absorbing panel 6. Thenoise absorbing panel 6 at its free and is provided with acover 220 formed from rubber material. The cover has bentedge regions 222 which encompass the free ends of thenoise absorbing panel 6 and are held by elastic deformation and friction to the end regions of the energy absorbingmesh material 12. -
Fig. 33 shows an embodiment for anothercover 230 according to the invention which basically corresponds to the embodiment as described in regard tofigure 32 .Figure 35 additionally shows, how two opposingnoise absorbing panels 6 and 6' are arranged against one another equipped withcovers 230, respectively. Moreover,figure 36 additionally shows a perspective view of thecover 230. According to this embodiment, thecover 230 has basically the same shape as shown infigure 32 in regard thecover 220 and it is also formed from elastically deformable material, e.g. rubber. Additionally, thecover 230 provides in its central region arounded projection 232 with ahollow interior 234, which makes therounded projection 232 elastically deformable. The general shape of thecover 230 is adapted to the geometry of the end side of anoise absorbing panel 6, as can be seen infigure 36 . When fixed onto the end of two opposingnoise absorbing panels 6 and 6', as shown infigure 35 , the two correspondingrounded projections 232 and 232' of therespective covers 230 and 230' contact one another and under elastic deformation provide a tight engagement of the two end covers 230 and 230'. This allows to compensate tolerances and provides a tight connection and additional noise damping effects also in the interface between two approximatenoise absorbing panels 6 and 6'. -
Figure 34 shows another embodiment which is based on the embodiment according tofigure 33 . Theend cover 240 corresponds in its shape to theend cover 230 as described above, i.e. it also has a roundedprojection 242 with ahollow interior 244. In the interior of the projection 242 apartition wall 246 is provided extending from the inner surface of theprojection 242 into the noise absorbingmaterial board 10. Thepartition wall 246 additionally stabilizes the structure of theprojection 242. -
Figure 37 shows a further embodiment which is also based on the embodiment according tofigure 33 . In this embodiment, in the central area of thecover 250 the projection is formed by a closed ring-like structure 252 as can be seen in the cross-section with ahollow interior 254. Thecover 250 is plugged onto the end portion of thenoise absorbing panel 6 such that a part, in the example about one fourth of the circumference, of theinner portion 256 of the closed ring-like structure 252 engages the front surface of the noise absorbingmaterial board 10 and protrudes into it to a certain degree. This further stabilizes thecover 250 and allows to compensate tolerances. As can be seen infigure 39 , the shape of thecover 250 is similar to the shape as already described in regard tofigure 36 . - Finally, as can be seen in
figure 38 , this embodiment provides a similar interface between two opposing or approximatenoise absorbing panels 6 and 6' wherein the two ring-like structures 252 contact each other under a demanded elastic deformation in order to provide a tight fit with beneficial noise dampening and cushioning characteristics. - Above, the invention is described with reference to some currently preferred embodiments. However, it is realised that other embodiments may be provided without departing from the scope of the invention as defined in the accompanying claims.
Claims (16)
- A noise absorbing panel (6) for guard rail system for installation at a lateral side or median of a road (2), said guard rail system comprises a series of supporting posts (4), that are preferably vertically oriented, where at least one noise absorbing panel (6) can be mounted to said supporting posts (4), and a series of longitudinal guard rails (8) mounted on the side of the guard rail system facing the road (2), whereinsaid noise absorbing panel (6) comprises a noise absorbing material board (10) which is encased in an energy absorbing material (12) provided with openingscharacterised in thatthe energy absorbing material (12) is a stretch-metal netting encasing said noise absorbing material board (10).
- A noise absorbing panel according to claim 1, wherein the noise absorbing material (10) is a mineral wool fibre material preferably provided as a foam material, integrated or partial rubber material, integrated or partial plastic material, or other noise absorbing material (10) resistant in regard to weather conditions and wear effects next to traffic ways.
- A noise absorbing panel according to claim 1 or 2, wherein said energy absorbing material (12) provided with openings comprises a mesh, a grid or a perforated material.
- A noise absorbing panel according to claim 3, wherein the stretch-metal is a ductile metal capable of absorbing energy while being plastically deformed.
- A noise absorbing panel according to claim 3 or 4, wherein the stretch-metal is galvanised steel.
- A noise absorbing panel according to any one of the preceding claims, wherein the energy absorbing material (12) is a combination of plastic netting and said stretch-metal netting.
- A noise absorbing panel according to any one of the preceding claims, wherein the netting is a panel which encloses at least the main sides and the top side of the noise absorbing material board.
- A noise absorbing panel according to any one of the preceding claims, wherein the encasing is made from stretch-metal netting panel which is bent into the box-like shape around the noise absorbing material board and with mounting panels provided at each of the end sides.
- A noise absorbing panel according to claim 7 or 8, wherein the encasing is made from stretch-metal netting panel which is cast into an insulation material made by a wet-felt process and with mounting panels provided at each of the end sides of the stretch-metal netting panel.
- A noise absorbing panel according to any one of the preceding claims, wherein the stretch-metal netting panel is provided with non-stretched areas at each of the end sections for receiving the mounting panels at each end for mounting the sound absorber to the supporting posts.
- A noise absorbing panel according to any one of the preceding claims, wherein said noise absorbing panel is approx. 90 cm in height and in length approx. 130 cm, approx. 260 cm or approx. 520 cm or approx. 530 cm.
- A noise absorbing panel according to any one of the preceding claims, wherein the mineral wool fibre board is stone wool and provided with a density within the range of 60-150 kg/m3, preferably 80-120 kg/m3, more preferably 80-100 kg/m3.
- A noise absorbing panel according to any one of the preceding claims, wherein the board is preferably provided with a protective fabric (212) on its road-facing side.
- A noise absorbing panel according to claim 13, wherein the protective fabric (212) has a structured surface having different appearances depending on an actual line of vision.
- A noise absorbing panel according to any one of the preceding claims, wherein said noise absorbing panel (10) is provided in a planar configuration or a curved or polygonal configuration.
- A noise absorbing panel according to any one of the preceding claims, wherein the noise absorbing panel (10) is provided at the respective axial end portions with end profiles, wherein the end profiles may have I-, H-, U- or C- shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL17739944T PL3482002T3 (en) | 2016-07-11 | 2017-07-07 | A noise absorbing panel for use in a sound absorbing guard rail system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16178826 | 2016-07-11 | ||
PCT/EP2017/067089 WO2018011080A1 (en) | 2016-07-11 | 2017-07-07 | A noise absorbing panel for use in a sound absorbing guard rail system |
Publications (2)
Publication Number | Publication Date |
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EP3482002A1 EP3482002A1 (en) | 2019-05-15 |
EP3482002B1 true EP3482002B1 (en) | 2021-11-10 |
Family
ID=56411440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17739944.1A Active EP3482002B1 (en) | 2016-07-11 | 2017-07-07 | A noise absorbing panel for use in a sound absorbing guard rail system |
Country Status (12)
Country | Link |
---|---|
US (1) | US20190234031A1 (en) |
EP (1) | EP3482002B1 (en) |
JP (1) | JP2019520501A (en) |
KR (1) | KR20190039120A (en) |
CN (1) | CN109563688A (en) |
BR (1) | BR112019000660A2 (en) |
CA (1) | CA3030465A1 (en) |
DK (1) | DK3482002T3 (en) |
IL (1) | IL264195B (en) |
PL (1) | PL3482002T3 (en) |
RU (1) | RU2771122C2 (en) |
WO (1) | WO2018011080A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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PL3482001T3 (en) * | 2016-07-11 | 2021-03-08 | Rockwool International A/S | A sound absorbing guard rail system |
CA3055844A1 (en) | 2019-09-18 | 2021-03-18 | Wade J. Mcallister | Temporary exterior noise interruption pollution wall |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
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LU80815A1 (en) * | 1979-01-23 | 1979-06-05 | Arbed | As a control system for road traffic and as a sound dam for the riders of the roadway |
JPH05264197A (en) * | 1992-03-18 | 1993-10-12 | Mitsubishi Corp | Substance and/or filler for heat exchanging tower |
JPH10338913A (en) * | 1997-06-10 | 1998-12-22 | Nippon Kokan Light Steel Kk | Protection fense having soundproof function |
JP2000225322A (en) * | 1998-11-30 | 2000-08-15 | Yoshitaka Suga | Wall structure for removing air pollutant |
JP3629417B2 (en) * | 2000-08-30 | 2005-03-16 | 住友金属建材株式会社 | Sound insulation wall |
KR20030096869A (en) * | 2002-06-18 | 2003-12-31 | 이영우 | Fence for preventing falling rocks using expanded metal |
ITRM20030188U1 (en) | 2003-10-29 | 2005-04-30 | Autostrade S P A Ora Atlantia S P A | SAFETY AND ANTI-NOISE BARRIER. |
JP2007115768A (en) * | 2005-10-18 | 2007-05-10 | Ngk Insulators Ltd | Radio wave absorption and acoustic absorption panel |
WO2007132964A1 (en) * | 2006-05-15 | 2007-11-22 | Ki Soung Park | Soundproofing board |
DK176759B1 (en) * | 2008-08-12 | 2009-06-29 | Thomas Willum Jensen | Car guard with shock absorbing measures |
RU94675U1 (en) * | 2010-03-12 | 2010-05-27 | Общество с ограниченной ответственностью "РУСКЛИМАТ" | FAN HEATER |
RU98018U1 (en) * | 2010-06-17 | 2010-09-27 | Виктор Петрович Лутков | WALL PANEL |
-
2017
- 2017-07-07 KR KR1020197003771A patent/KR20190039120A/en not_active Application Discontinuation
- 2017-07-07 WO PCT/EP2017/067089 patent/WO2018011080A1/en unknown
- 2017-07-07 RU RU2019101505A patent/RU2771122C2/en active
- 2017-07-07 CN CN201780043449.8A patent/CN109563688A/en active Pending
- 2017-07-07 PL PL17739944T patent/PL3482002T3/en unknown
- 2017-07-07 US US16/317,261 patent/US20190234031A1/en not_active Abandoned
- 2017-07-07 DK DK17739944.1T patent/DK3482002T3/en active
- 2017-07-07 EP EP17739944.1A patent/EP3482002B1/en active Active
- 2017-07-07 CA CA3030465A patent/CA3030465A1/en active Pending
- 2017-07-07 BR BR112019000660A patent/BR112019000660A2/en not_active Application Discontinuation
- 2017-07-07 JP JP2019500673A patent/JP2019520501A/en active Pending
-
2019
- 2019-01-10 IL IL264195A patent/IL264195B/en unknown
Non-Patent Citations (1)
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RU2771122C2 (en) | 2022-04-26 |
KR20190039120A (en) | 2019-04-10 |
IL264195B (en) | 2022-04-01 |
JP2019520501A (en) | 2019-07-18 |
US20190234031A1 (en) | 2019-08-01 |
RU2019101505A3 (en) | 2020-10-07 |
EP3482002A1 (en) | 2019-05-15 |
RU2019101505A (en) | 2020-08-11 |
CA3030465A1 (en) | 2018-01-18 |
PL3482002T3 (en) | 2022-05-02 |
IL264195A (en) | 2019-02-28 |
WO2018011080A1 (en) | 2018-01-18 |
BR112019000660A2 (en) | 2019-05-28 |
DK3482002T3 (en) | 2022-01-31 |
CN109563688A (en) | 2019-04-02 |
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